![]() FOLDED RELAY SPRING FOR AN OPTICAL VISOR
专利摘要:
An optical visor includes a housing, a relay assembly and a biasing element. The relay assembly has at least one optical element, a main tube, a guide tube with at least one guide, and a crosshair assembly. The guide tube is selectively rotatable relative to and around the main tube to adjust an axial position of the at least one optical element within the main tube along an axis that is substantially parallel to a longitudinal axis of the main tube. The crosshair assembly further comprises at least one optical element. The biasing member includes a mounting strip that is secured to an inner surface of the housing and a spring that has an engagement surface that contacts the relay assembly and exerts a force on the relay assembly. The engaging surface is located on a radially inner side of the spring opposite to a radially outer side that faces the mounting strip. 公开号:AT521537A2 申请号:T50549/2019 申请日:2019-06-19 公开日:2020-02-15 发明作者:C Szalony Steven;Doran Ian;Delaca Rodney 申请人:Trijicon Inc; IPC主号:
专利说明:
FIELD The present invention relates to an optical visor, and more particularly, to a relay spring for an optical visor. BACKGROUND This section provides background information related to the present disclosure that is not necessarily prior art. Optical sights are often used on firearms such as rifles and / or handguns so that a user can see a target more clearly and can aim the firearm at the target. Conventional optical sights include a series of lenses and / or other optical components that enlarge an image and provide crosshairs to allow a user to align an enlarged target relative to a barrel of the gun. Optical sights can include one or more adjustment mechanisms that allow adjustment of a position of the crosshair relative to the barrel of the firearm. Optical visors can also include a relay arrangement that allows a user to easily and reliably adjust an enlargement of the optical visor. Such relay assemblies include a main tube that supports one or more optical elements (ie, lenses) and a so-called “guide tube” that has one or more rails or slots that slidably receive a bearing that is fixed for movement with at least one of the optical elements . SUMMARY This section provides a general summary of the disclosure and is not a comprehensive disclosure of the full scope or all of its features. [0006] An exemplary optical visor according to the present disclosure may include a housing, a relay assembly, and a biasing element. The relay assembly further comprises at least one optical element, a main tube, a guide tube that has at least one guide, and a crosshair assembly. The guide tube is selectively rotatable relative to and around the main tube to adjust an axial position of the at least one optical element within the main tube along an axis that is substantially parallel to a longitudinal axis of the main tube. The crosshair assembly also has at least one optical element. The biasing element includes a mounting strip and a spring. The mounting strip is on 2/30 attached to an inner surface of the housing and the spring has an engagement surface that contacts the relay assembly. The engaging surface is located on a radially inner side of the spring opposite to a radially outer side that faces the mounting strip. The biasing member exerts a force on the relay assembly when the relay assembly is installed in the housing. [0007] The optical visor may further include an adjustment assembly having at least one tower. The at least one tower can cooperate with the biasing element to adjust a position of the crosshair assembly and the relay assembly. [0008] The at least one tower can comprise a first tower and a second tower. The force exerted by the biasing element may be at an angle of one hundred and thirty-five degrees relative to the force exerted by the first tower and the force exerted by the second tower. The engagement surface of the biasing member can contact the relay assembly at an angle of one hundred and thirty-five degrees with respect to a contact point between the relay assembly and the first tower and at an angle of one hundred and thirty-five degrees with respect to a contact point between the relay assembly and the second tower. The mounting strip may be an arcuate plate that has a plurality of openings for receiving a plurality of fasteners to secure the mounting strip to an inner wall of the housing. The spring can extend from a radially extending edge surface of the mounting strip and be folded over so that the spring extends back over itself and overlaps with the mounting strip on an inner side of the mounting strip opposite to the inner wall of the housing. The relay assembly may include a first end and a second end. The engaging surface can contact the crosshair assembly at the first end of the relay assembly. [0013] The relay assembly may include a first end and a second end. The first end may contact the engagement surface and the relay assembly may pivot opposite the first end at the second end. At least one tower of an adjustment assembly can cooperate with the biasing element to pivot the crosshair assembly and the relay assembly with respect to the housing. The at least one tower can be a first tower, which has a first adjusting screw, which is perpendicular to a longitudinal axis of the housing in a first direction 3/30 moves. The first adjustment screw can exert a force on the relay assembly that is at least partially opposite to the force exerted by the biasing element. The at least one tower may include a second tower that has a second adjustment screw that moves in a second direction perpendicular to the longitudinal axis of the housing and perpendicular to the first direction. The second adjusting screw can exert a force on the relay assembly that is at least partially opposite to the force exerted by the biasing element. An exemplary biasing member for an optical visor relay assembly according to the present disclosure may include a mounting plate and a spring extending from the mounting plate. The mounting plate can attach the spring to an inner surface of a housing of the optical visor. The spring may include a free end that has an engagement surface that contacts the relay assembly. The spring can be folded so that the free end of the spring overlaps the mounting plate. The mounting plate can mimic a shape of the inner surface of the housing. The mounting plate can be arcuate. The mounting plate may include a plurality of openings for receiving a variety of fasteners to secure the mounting plate to the inner surface of the housing. The spring can be a cantilevered flat spring that extends from the mounting plate. The spring can be an expansion spring which comprises a first leg and a second leg and is folded such that the first leg overlaps the second leg via a bend in the spring. The engagement surface may touch a crosshair housing of a crosshair assembly that is disposed at one end of the relay assembly. The engaging surface can exert a force on the crosshair assembly when the crosshair assembly and the relay assembly are installed in the housing. The engaging surface may cooperate with an adjustment assembly having at least one tower to adjust a position of the crosshair assembly and the relay assembly within the housing. [0026] Further areas of application will become apparent from the description provided here. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure. 4/30 FIGURES The figures described here are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure. Figure 1 is a perspective view of a firearm that includes an optical sight according to the principles of the present disclosure. Figure 2 is a cross-sectional view of the optical visor of Figure 1 taken along line 2-2 of Figure 1; Figure 3 is a cross-sectional view of the optical visor of Figure 1 taken along line 3-3 of Figure 1; Figure 4 is a cross-sectional view of the optical visor of Figure 1 taken along line 4-4 of Figure 1; Figure 5 is an exploded view of the housing and relay assembly taken along line 7-7 of Figure 6; Figure 6 is a perspective view of the relay assembly of Figure 1; Figure 7 is a cross-sectional view of the relay assembly taken along line 7-7 in Figure 6; and Figures 8A and 8B are different perspective views of a biasing element of the relay assembly of Figure 6. Corresponding reference numerals designate corresponding parts across the different views of the figures. DETAILED DESCRIPTION Exemplary embodiments will now be described more fully with reference to the accompanying figures. Exemplary embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those skilled in the art. Numerous specific details, such as examples of specific components, devices, and methods, are set forth to provide a thorough understanding of the embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be used, that exemplary embodiments can be embodied in many different forms, and none of them should be construed to limit the scope of the disclosure. In some example embodiments, known processes, known device structures, and known technologies are not described in detail. [0039] The terminology used herein is for the purpose of describing certain exemplary embodiments only and is not intended to be limiting. As used herein, the singular forms may include one and the plural forms, unless the context clearly indicates otherwise. The terms encompassing, encompassing, containing, and "having" are inclusive and therefore specify the presence of specified features, integers, steps, processes, elements and / or components, but exclude the presence or addition of one or more other features, integers, steps, processes, elements, components and / or groups thereof. The method steps, processes, and procedures described herein are not to be construed as necessarily requiring their execution in the particular order discussed or illustrated, unless expressly identified as an order of execution. It is also understood that additional or alternative steps may be used can. When an element or layer is referred to as “on,” “engaged with,” “connected to,” or “coupled to,” another element or another layer, it may be directly on, engaged, connected, or coupled with the other element or layer, or there may be intermediate elements or layers. Conversely, if an element is referred to as “directly on,” “directly engaged with,” “directly connected to,” or “directly coupled to,” another element or layer, there may be no intermediate elements or layers. Other words used to describe the relationship between elements should be interpreted in a similar way (for example, "between" versus "directly between", "adjacent" versus "directly adjacent", etc.). As used herein, the term “and / or” encompasses any and all combinations of one or more of the associated listed items. [0041] Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be used by them Terms are limited. These terms may only be used to distinguish an element, component, area, layer, or section from another area, layer, or section. When terms such as "first", "second" and other numerical terms are used herein, they do not imply a sequence or order unless clearly indicated by the context. A first element, component, area, layer or section discussed below could thus be used as 6/30 second element, component, area, layer or section may be mentioned without departing from the teachings of the exemplary embodiments. Spatial relative terms such as "inside", "outside", "below", "below", "below", "above", "upper" and the like may be used herein to simplify the description to relate an element or to describe a feature with respect to other element (s) or feature (s) as shown in the figures. Spatial relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, if the device in the figures is turned, elements described as “below” or “below” other elements or features would then be “above” the other elements or features. Therefore, the exemplary term "below" can include both an orientation above and below. The device may be otherwise oriented (rotated 90 ° or other orientations) and the spatial relative descriptions used herein interpreted accordingly. 1 to 3, an optical visor 10 is provided and may include a housing 14, an optical cable 18, an adjustment system 22 and a relay assembly 26. The housing 14 is removably attached to a firearm 30 and carries the optics train 18 and the adjustment system 22. The optics train 18 cooperates with the housing 14 to provide an enlarged image of a target, while the adjustment system 22 at least a portion of the optics train 18 and the Relay assembly 26 is positioned with respect to housing 14 to accurately align a crosshair pattern (not shown) associated with optics train 18 and relay assembly 26 with firearm 30. A light emitting diode (LED; not shown) or other lighting system can cooperate with the optical train 18 to illuminate the crosshair pattern to assist a user in aligning the target relative to the optical sight 10 and the firearm 30. The housing 14 is removably secured to the firearm 30 and includes a main body 34, an eyepiece 38, and a mounting ring 42 that secures the eyepiece 38 to the main body 34. The main body 34 may be a substantially tubular member and includes an interior cavity 46, a longitudinal axis 50 that extends between a first end 54 and a second end 58 of the housing 14, and a mounting portion 62 that mounts with a bracket 64 (FIG 5) cooperates to attach the housing 14 to the firearm 30 via the main body 34. As shown in Figure 2, the first end 54 comprises a series of threads 66 which cooperate with threads 70 of the fastening ring 42, 7/30 to attach the mounting ring 42 to the main body 34 at the first end 54. The first end 54 also includes a series of threads 74 which are formed on an opposite side of the main body 34 at the first end 54 as the threads 66 so that the threads 74 face the inner cavity 46 of the main body 34. The second end 58 is disposed at an end of the main body 34 opposite the first end 54 and includes an opening 76 that has a series of internal threads 78. The internal threads 78 cooperate with a part of the optical train 18 in order to hold the optical train 18 within the main body 34. The mounting section 62 is arranged along the longitudinal axis 50 and lies essentially between the first end 54 and the second end 58. The mounting section 62 can comprise a series of threaded bores 82 (FIG. 2) which are connected to the holder 64 (FIG. 5 ) Cooperate to enable the optical sight 10 to be mounted on the firearm 30 at the mounting position 62 of the housing 14. The threaded bores 82 can accommodate, for example, connecting elements 84 which pass through openings in the holder 64 and fasten the mounting section 62 to the holder 64. In other embodiments, the threaded bores 82 can cooperate directly with a mounting device 86 (Figure 1) connected to the firearm 30 to enable the optical sight 10 to be mounted on the firearm 30 on the mounting portion 62 of the housing 14. The eyepiece 38 is attached to the main body 34 at the first end 54 via the mounting ring 42 as previously described. The eyepiece 38 includes a housing 90 that has a series of external threads 94 and a series of internal threads 56. The external threads 94 engage the internal threads 98 of the mounting ring 42 to allow adjustment of the eyepiece 38 with respect to the main body 34. The eyepiece 38 is positioned relative to the first end 54 of the main body 34 by the mounting ring 42 to allow the eyepiece 38 to carry a part of the optical train 18 relative to the main body 34 at a predetermined distance. As is also shown in FIGS. 2 and 3, a part of the optical train 18 is positioned by the fastening ring 42 by a predetermined distance along the longitudinal axis 50 from the relay assembly 26. With particular reference to FIGS. 2 to 4, the optical train 18 is shown in such a way that it contains an eyepiece assembly 102, a zoom assembly 106, a crosshair assembly 110 and a lens assembly 114. The eyepiece assembly 102 may include a series of lenses 118. The eyepiece assembly 102 can by 8/30 Eyepiece 38 is supported relative to the main body 34 of the housing 14 by one or more retaining rings 122. In one configuration, retaining rings 122 are threadedly engaged with internal threads 56 of eyepiece 38 to hold and position lenses 118 of eyepiece assembly 102 within eyepiece 38. The zoom assembly 106 is supported within the housing 14 of the optical visor 10 by the relay assembly 26 and may include a first relay lens assembly 126, a second relay lens assembly 130, a third relay lens assembly 134, and one or more stationary lenses 136 . The first relay lens assembly 126, the second relay lens assembly 130, and the third relay lens assembly 134 may each include a lens (or a series of lenses) 132 that cooperate with each other and with the stationary lenses 136 to magnify one of them Adjust housing 14 at the opening 76 received image. Crosshair assembly 110 may include one or more crosshair lenses 138 that are supported by a crosshair lens housing 142. The crosshair lens housing 142 is attached to the relay assembly 26 and is supported by it within the inner cavity 46 of the main body 34. Accordingly, when the relay assembly 26 is moved with respect to and within the inner cavity 46 of the housing 14, the lens 138 is also moved with respect to and within the inner cavity 46. Because lens 138 includes the crosshair pattern thereon, movement of crosshair lens housing 142 and lens 138 with respect to and within interior cavity 46 of housing 14 also adjusts a position of the crosshair pattern with respect to and within housing 14. In addition, since the housing 14 is attached to the firearm 30 via the mounting portion 42 of the main body 34 and via the bracket 64 and / or the mounting device 86 of the firearm 30, the setting of the crosshair pattern relative to the housing 14 also provides a position of the crosshair pattern relative to the firearm 30. The lens assembly 114 may be disposed near the second end 58 of the housing 14 and may include a series of objective lenses 146. The objective lenses 146 can be held and supported within the housing 14 via at least one retaining ring 150. In one configuration, the retaining ring (s) 150 is threadedly engaged with the internal threads 78 of the opening 76 to position and hold the objective lenses 146 at a desired location along the longitudinal axis 50 of the housing 14. The foregoing description of the optical train 18 is provided to provide an exemplary configuration of optical components. The principles of the present disclosure are not limited in their application to an optical visor that has an optical train that has the respective components and / or described above 9/30 Arrangement of components contains. The optical visor 10 can include any other configuration or arrangement of optical components to suit a given application and can provide the optical visor 10 at almost any magnification. Continuing to refer to FIGS. 2 to 4, the setting system 22 is shown in such a way that it contains first and second setting assemblies or towers 155, 158. In one configuration, the adjustment tower 154 is positioned and supported by the housing 14 to enable the adjustment tower 154 to adjust a position of the crosshair lens housing 142, and thus the lenses 138, in a direction that is substantially perpendicular to the longitudinal axis 50 and in a direction (X) as shown in FIG. Movement of lenses 138 in direction (X) also causes movement of the crosshair pattern in direction (X), which in turn adjusts a position of the crosshair pattern with respect to firearm 30. Setting a position of the crosshair pattern in the direction (X) adjusts a position of the crosshair pattern in a direction toward or away from an upper surface 162 of the firearm 30, and thereby adjusts the height position of the crosshair pattern and enables a user to adjust the height when shooting to consider targets of different distances. The adjustment tower 158 is positioned substantially perpendicular to the longitudinal axis 50, but is rotated about the longitudinal axis 50 by ninety degrees (90 °) with respect to the adjustment tower 154. Adjustment tower 158 may also adjust a position of crosshair lens housing 142 and associated lenses 138 with respect to housing 14 in a manner similar to adjustment tower 154. However, the adjustment tower 158 adjusts a position of the lenses 138 in one direction (Y; Figure 3), which in turn moves the lenses 138 in a direction that is substantially ninety degrees (90 °) with respect to the direction (X). Movement of the lenses 138 in the direction (Y) causes the crosshair pattern to also move in the direction (Y) and substantially parallel to the top surface 162 of the firearm 30. Accordingly, the adjustment tower 158 allows a user to consider a wind when using the optical sight 10 and the firearm 30. The adjustment towers 154, 158 are essentially identical. Accordingly, only a description of the adjustment tower 154 is provided. The adjustment tower 154 includes a cover 166, a main body 170, and an adjustment screw 174. The cover 166 is attached to the adjustment screw 174. When the cover 166 is rotated with respect to the main body 170, the adjusting screw 174 also moves with respect to the main body 170. Depending on the direction of rotation of the cover 166 with respect to the main body 170, the adjustment screw 174 also moves 10/30 Adjustment screw 174 either along a direction (X) towards the crosshair lens housing 142 or away from the crosshair lens housing 142. The main body 170 rotatably supports the cover 166 with respect to the housing 14 and also supports the adjustment screw 174 for movement in that direction (X) with respect to the housing 14. The main body 170 includes a series of threads 178 that matingly engage a threaded bore 182 of the main body 34. The engagement between the threads 178 of the main body 71 and the threaded bore 182 of the housing 14 secures the main body 170 to the housing 14. In addition, positioning the main body 170 relative to the main body 34 enables the adjusting screw 174 to extend into the inner cavity 46 of the housing 14 To extend housing 14, whereby the adjusting screw 174 can contact the crosshair lens housing 142. As will be described in more detail below, the crosshair lens housing 142 is biased by the relay assembly 26 into engagement with the set screw 174. The optical visor 10 may also include a brightness control assembly 186 to adjust the crosshair brightness. A brightness control button board assembly 188 may be disposed within an interior cavity 190 of the brightness control housing, or the brightness control button 194 may be attached to the housing 14. A brightness electronics cover 198 may seal the interior cavity 190 of the brightness control button 194 and provide access to the brightness control button board assembly 186. The brightness electronics cover 198 may be engaged (e.g., by threads or the like) with an annular surface 202 of the brightness control knob 194 that defines the interior cavity 190. The brightness control button circuit board assembly 186 can be electrically connected to the crosshair assembly 110 via a cable 206 (Figure 2). In addition, a battery (not shown) for powering the crosshair assembly 110 or any other part of the optical train 18 may be disposed within an interior cavity (not shown) of a battery housing 210 that is attached to the housing 14. A battery lock 212 can lock the battery case 210 and provide access to the battery. The battery latch 212 may be engaged (e.g., by threads or otherwise) with an annular surface of the battery housing 194 that defines the interior cavity. The battery can be electrically connected to the crosshair assembly 110 or another part of the optical train 18 via a cable and / or a contact subassembly and can supply it with power. 5 to 8B, the relay assembly 26 is shown and includes a main tube 214, a guide tube 218, an end cap 222 and a biasing member 230. The main tube 214 carries the first relay lens assembly 126, the second relay lens assembly 130 and the third relay lens assembly 134 slidably therein for movement in a direction substantially parallel to the longitudinal axis 50, as shown in FIGS. 2 and 3. The main tube 214 also rotatably supports the guide tube 218 within the inner cavity 46 and allows the guide tube 218 to be rotated about the longitudinal axis 50 and relative to the main tube 214. The main tube 214 includes a first end 234, a second end 238, an interior cavity 242 that extends between the first end 234 and the second end 238, and a recess 246. The first end 234 includes an engagement surface 250 and second end 238 is located at an opposite end of main tube 214 from first end 234 and includes an engaging surface 254. Recess 246 is formed through main tube 214 such that recess 246 extends from an outer surface 258 of main tube 214 and into inner cavity 242 extends into it. The recess 246 generally extends between the first end 234 and the second end 238 and is substantially parallel to the longitudinal axis 50. The guide tube 218 is slidably and rotatably received by the main tube 214 such that an inner surface 262 of the guide tube 218 faces the outer surface 258 of the main tube 214 when the guide tube 218 is installed on the main tube 214. The guide tube 218 includes a first end 266, a second end 270, a first recess 274, a second recess 278 and a third recess 282. The first end 266 includes a ring having an engagement surface 290 and a bore 294. The second end 270 is disposed on an end of the guide tube 218 that is opposite the first end 266. The first recess 274, the second recess 278, and the third recess 282 are each formed at an angle with respect to the longitudinal axis 50. For example, and as shown in Figure 6, the first recess 274 may be formed at an angle (Φ), while the second recess 278 is formed at an angle (β) and the third recess 282 is formed at an angle (a). All angles (Φ, ß, a) are acute angles, so that the recesses 274, 278 and 282 are inclined to one another in the same direction, as best shown in FIG. 6. The angles (Φ, ß, a) can be different acute angles to allow different degrees of adjustment of the relay lens assembly 126, 130 and 134, as will be described in more detail below. The recesses 274, 278 and 282 extend through the guide tube 218 between the inner surface 262 and an outer surface 296. [0065] End cap 222 includes a spherical outer surface 298 and bores (not shown) that extend through end cap 222. The bores are spaced around the end cap 222. The holes receive fasteners to secure the end cap 222 to the main tube 214 at respective mounting openings of the main tube 214. The end cap 222 is engaged with a sleeve or seat 306 which is formed in a ring 310 which is arranged in the main body 34 of the housing 14. The bushing or seat 306 may be attached to or machined into the housing 14 and is disposed within the inner cavity 46. The spherical outer surface 298 of the end cap 222 is engaged with the socket 306 of the housing 14 when the relay assembly 26 is installed in the inner cavity 46. The end cap 222 is held within the inner cavity 46 and remains in contact with the socket 306 by a holder (Figures 2 and 7). The holder 314 includes an engagement surface 318 that cooperates with the bush 306 of the ring 310 to provide a bearing surface for the end cap 222. When the end cap 222 is in contact with the sleeve 306 of the ring 310 and with the engagement surface 318 of the holder 314, the end cap 220 can rotate about the housing 14 and within the sleeve 306. Rotation of the end cap 222 with respect to and within the housing 14 also causes the main tube 214 and thus the guide tube 218 to pivot about the end cap 222 with respect to and within the inner cavity 46 of the housing 14. The main tube 214 and guide tube 218 pivot with the end cap 222 because the end cap 222 is secured for movement with the main tube 214 via the fasteners and the guide tube 218 is attached to the main tube 214 and is substantially between the end cap 222 and the cross hairs. Lens housing 270 extends. When a force is applied adjacent the second end 238 of the main tube 214, the main tube 214 and the guide tube 218 pivot about the end cap 222 with respect to the housing 14 because the spherical outer surface 298 of the end cap 222 is guided by the bush 306 and is in contact with her. The holder 314 includes a threaded portion 322 that can be screwed into the first end 54 of the main body 34 when the threaded portion 322 is engaged with the threads 74 until the engaging surface 318 contacts the spherical outer surface 298 of the end cap 222. Namely, holder 314 can be inserted into first end 54 until a desired force is applied to end cap 222 on spherical outer surface 298 to provide a desired amount of resistance to movement of spherical outer surface 298 with respect to and within sleeve 306. Once the desired position of the holder 314 with respect to the bush 306 13/30 of the ring 310 is reached and the end cap 222 is positioned within the bush 306, the position of the holder 314 with respect to the housing can be fixed, for example using Loctite®, another suitable adhesive or another suitable type of fastening. The crosshair lens housing 142 of the crosshair lens assembly 110 is attached to the second end 270 of the guide tube 218 by fasteners 326 which are received by holes (not shown) in the guide tube 218. A combination of the crosshair lens housing 142 and the end cap 222 positions the guide tube 218 along the main tube 214. The biasing member 230 may include a mounting strip 330 and a V-shaped spring 334 that has an engagement surface 338. The spring 334 may extend in the axial direction from the mounting strip 330, which attaches the spring 334 to an inner wall 342 of the main body 34 of the housing 14. The mounting strip 330 may be an arcuate plate having a plurality of openings or through bores 346 to receive fasteners 350 to attach the mounting strip 330 to the inner wall 342. The mounting strip 330 may be arcuate to match a curved shape of a surface of the inner wall 342. The fasteners 350 can be inserted into the openings 346 and then inserted into respective openings 354 formed in the inner wall 342. The openings 354 in the inner wall 342 may include a series of threads 358 that threadably engage and engage the fasteners 350. Once the biasing member 230 is attached to the inner wall 342, the biasing member 230 is fixed relative to the main body 34 of the housing 14. The spring 334 may be a leaf spring that extends from a radially extending edge surface 362 of the mounting strip 330 and is folded or bent so that the spring 334 extends back over itself (ie, a first leg 360 of the spring 334 returns over a second leg 364 of the spring via a bend 368 in the spring 334) and overlaps with the mounting strip 330 on an inside 366 of the mounting strip 330 relative to the inner wall 342. Because spring 334 is only attached to mounting strip 330 at a single end, spring 334 provides a cantilever structure. The folded shape of the spring 334 provides an expansion spring structure in which the free height of the spring 334 is greater than the gap into which it is fitted, so that a bias is exerted radially outward on the crosshair lens housing 142. The engagement surface 338 is arranged on a free end 370 of the spring 334 and on a radially inner side 374 of the spring 334 14/30 opposite to a radially outer side 378, which faces the mounting strip 330. The spring 334 folds and goes away from the inner wall 342 of the housing 14 to allow the engagement surface 338 to abut an outer surface 382 of the crosshair lens housing 142 of the crosshair assembly 110 within the inner cavity 46. The engagement surface 338 abuts the outer surface 382 of the crosshair lens housing 142 at a location near a free end 386 of the crosshair lens housing 142 and circumferentially spaced from the adjustment towers 154, 158 to allow the biasing member 230 to simultaneously exert a force on each of the adjustment towers 154, 158. For example, only with reference to Figure 4, the adjustment tower 154 can touch a 12 o'clock position on the crosshair lens housing 142, the adjustment tower 158 can touch a 9 o'clock position on the crosshair lens housing 142, and the engaging surface 338 of the Spring 334 may contact the crosshair lens housing 142 at a position within a range from a 4 o'clock position to a 5 o'clock position, and preferably midway between the 4 o'clock position and the 5 o'clock position. As best shown in Figure 4, the spring 334 of the biasing member 230 is arranged in a configuration such that an axis A that extends perpendicular to and through the engaging surface 338 of the spring 334 is at an angle α and an angle Φ with respect to each of the adjustment towers 154, 158 (in particular with respect to a longitudinal axis B and C of the adjustment screws 174). For example only, both the angle α and the angle Φ may preferably be within a range of 45 degrees (45 °) to one hundred and eighty-five degrees (185 °) relative to the longitudinal axes B and C of the adjustment screws 174, and more preferably substantially equal to one hundred and thirty-five degrees ( 135 °) relative to the longitudinal axes B and C of the adjustment screws 174. In other words, the spring 334 is circumferentially offset from the adjustment tower 154 and from the adjustment tower 158 by approximately one hundred and thirty-five degrees (135 °). Positioning the spring 334 in the foregoing manner allows the biasing member 230 to simultaneously apply a force against the adjustment screws 174 of the adjustment towers 154, 158, which in turn enables the crosshair pattern to be adjusted accurately. Preferably, positioning the spring 334 in the foregoing manner allows the biasing member 230 to exert an equal force against each of the adjustment screws 174 of the adjustment towers 154, 158. For example, the lens (s) 138 of the crosshair lens housing 142 move in a direction away from the mounting strip 330 along the direction (X) when the adjustment tower 154 causes the adjustment screw 174 to move along the direction (X ) and moved away from the mounting strip 330. In return, if the parking tower 154 15/30 causes the set screw 174 to move in the (X) direction and toward the mounting strip 330, the spring 334 shifts and provides resistance to such movement to allow a user to accurately adjust the Lens (s) 138 in the X direction and thus to get an accurate adjustment of the crosshair pattern. Likewise, lens (s) 138 of crosshair lens housing 142 move in a direction away from mounting strip 330 along direction (Y) when adjustment tower 158 causes adjustment screw 174 to move along direction (Y ) and moved away from the mounting strip 330. Conversely, if the adjustment tower 158 causes the adjustment screw 174 to move in the (Y) direction and toward the mounting strip 330, the spring 334 shifts and provides resistance to such movement to allow a user to to obtain an exact adjustment of the lens (s) 138 in the Y direction and thus an exact adjustment of the crosshair pattern. Once the relay assembly 26 is installed in the housing 14 and the eyepiece 38 is attached to the first end 54, the optical sight 10 can be attached to the firearm 30 using the mounting portion 62, the bracket 64 and / or the mounting device 86 will. At this point, a user can use either or both of the adjustment towers 154, 158 to take account of the altitude and wind by optionally causing the respective adjustment screws 174 to move further in or out of the interior cavity 46, thereby a position of the crosshair lens housing 142 is adjusted with respect to and within the inner cavity 46 of the housing 14. As described above, the biasing member 230 exerts a force on the free end 386 of the crosshair lens housing 142, around the crosshair lens housing 142 and the lens (s) 138 in a direction away from the mounting strip 330 and in contact with the adjustment towers 154, 158 for precise adjustment of the wind and the height. Such movement of the crosshair lens housing 142 relative to and within the inner cavity 46 also causes the lens (s) 138 to move, thereby adjusting a position of the crosshair pattern not only with respect to the housing 14 but also the firearm 30. Movement of the crosshair lens housing 142 is permitted by applying a force to the crosshair lens housing 142 through the adjustment screw 174, which in turn causes the relay assembly 26 to pivot about the end cap 222. Such movement of the end cap 222 causes the spherical outer surface 298 to engage the bush 306. Such engagement between the spherical outer surface 298 and the socket 306 controls movement of the relay assembly 26 relative to and within the inner cavity 46. An increase or decrease in the magnification can be achieved by applying a rotational force to an adjusting ring 390 which is rotatably supported by the housing 14 and by the mounting ring 42 (FIG. 2). The adjustment ring 390 includes a rod 394 which is fixed for movement with the adjustment ring 390 and which is received by the bore 294 of the guide tube 218. Therefore, when a rotational force is applied to the adjustment ring 390 and the adjustment ring 390 is moved with respect to the housing 14, the force is transmitted to the guide tube 218 through the rod 394. The transmitted force also causes the guide tube 218 to rotate about the longitudinal axis 50 relative to the housing 14. Rotation of the guide tube 218 about the longitudinal axis 50 adjusts the magnification of the optical visor 10 by causing the first relay lens assembly 126, the second relay lens assembly 130, and the third relay lens assembly 134 to move in the axial direction along the longitudinal axis 50. Namely, the first relay lens assembly 126, the second relay lens assembly 130, and the third relay lens assembly 134 each include a respective housing 398, 402, 406, each of which has a threaded bore 410. The bores 410 receive a fastening device 412, which has a bearing 416. Therefore, when the fasteners 412 are installed in the bores 410, the bearings 416 are substantially disposed between a head of the fasteners 412 and an outer surface of the respective housings 398, 402, 406. The bearings 416 are rotatably received within the respective recesses 274, 278, 282 of the guide tube 218 and also within the recess 246 of the main tube 214 (FIG. 5). The bearings 416 rotate about the respective fasteners 412 to enable the bearings 416 to move with respect to and within the recesses 274, 278, 282 of the guide tube 218 and within the recess 246 of the main tube 214. When a rotational force is applied to the adjustment ring 390 and the rotational force is applied to the guide tube 218 via the rod 394, the force is also applied to the bearings 416 due to the angular characteristic of the first recess 274, the second recess 278 and the third recess 282 transmitted. That is, when the guide tube 218 rotates relative to and around the main tube 214, the bearings 416 pass through the first recess 274, the second recess 278 and the third recess 282. Such movement also causes the bearings 416 to be in one Move direction substantially parallel to the longitudinal axis 50 and within the recess 246 of the main pipe 214. Movement of bearings 416 along recess 246 of main tube 214 also causes housings 398, 402, 406 to move in one direction 17/30 Substantially parallel to the longitudinal axis 50 and within the inner cavity 242 of the main tube 214. Such movement of the housings 398, 402, 406 in a direction substantially parallel to the longitudinal axis 50 and within the main tube 214 also causes movement of the respective lenses 132, associated with housings 398, 402, 406 to move within and relative to main tube 214. Movement of the lenses 132 causes adjustment of the magnification of the optical sight 10. Once a desired magnification is achieved, the force applied to the adjustment ring 390 can be released and a position of the first relay lens assembly 126, the second relay lens assembly 130 and the third relay lens assembly 134 and thus the associated lens 132 within the main tube 214 is maintained due to the engagement between the bearings 416 within the respective recesses 246, 274, 278, 282 of the main tube 214 and the guide tube 218. [0083] The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but are interchangeable where appropriate and can be used in a selected embodiment, even if it is not expressly shown or described. The same can be varied in many ways. Such variations are not intended to be considered a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
权利要求:
Claims (20) [1] EXPECTATIONS What is claimed is: 1. An optical visor comprising: a housing; a relay assembly having at least one optical element, a main tube, a guide tube having at least one guide, and a crosshair assembly, the guide tube being selectively rotatable relative to and around the main tube about an axial position of the at least one optical Adjust element within the main tube along an axis that is substantially parallel to a longitudinal axis of the main tube, and wherein the crosshair assembly has at least one optical element; and a biasing member that includes a mounting strip and a spring, the mounting strip attached to an inner surface of the housing and the spring having an engagement surface that contacts the relay assembly, the engagement surface on a radially inner side of the spring opposing a radially outer one Side is facing the mounting strip and the biasing member exerts a force on the relay assembly when the relay assembly is installed in the housing. [2] 2. The optical visor of claim 1, further comprising an adjustment assembly having at least one tower, the at least one tower cooperating with the biasing member to adjust a position of the crosshair assembly and the relay assembly. [3] The optical visor of claim 2, wherein the at least one tower comprises a first tower and a second tower, and wherein the force exerted by the biasing element is at an angle of one hundred and thirty-five degrees relative to the force exerted by the first tower and that of force exerted on the second tower. 19/30 [4] The optical visor of claim 3, wherein the engagement surface of the biasing member contacts the relay assembly at an angle of one hundred and thirty-five degrees with respect to a contact point between the relay assembly and the first tower and at an angle of one hundred and thirty-five degrees with respect to a contact point between the relay assembly and the second tower . [5] 5. The optical visor of claim 1, wherein the mounting strip is an arcuate plate having a plurality of openings for receiving a plurality of fasteners to attach the mounting strip to an inner wall of the housing. [6] 6. The optical visor according to claim 5, wherein the spring extends from a radially extending edge surface of the mounting strip and is folded over so that the spring extends back over itself and with the mounting strip on an inner side of the mounting strip opposite to that Inner wall of the housing overlaps. [7] 7. The optical visor of claim 1, wherein the relay assembly includes a first end and a second end, and the mating surface contacts the crosshair assembly at the first end of the relay assembly. [8] 8. The optical visor of claim 1, wherein the relay assembly includes a first end and a second end, the first end contacts the engagement surface, and the relay assembly on the second end pivots opposite to the first end. [9] The optical visor of claim 8, wherein at least one tower of an adjustment assembly cooperates with the biasing member to pivot the crosshair assembly and the relay assembly with respect to the housing. 20/30 [10] 10. The optical visor of claim 9, wherein the at least one tower is a first tower having a first adjustment screw that moves in a first direction perpendicular to a longitudinal axis of the housing, the first adjustment screw exerting a force on the relay assembly, which is at least partially opposite to the force exerted by the biasing element. [11] 11. The optical visor of claim 10, wherein the at least one tower comprises a second tower having a second adjustment screw that moves in a second direction perpendicular to the longitudinal axis of the housing and perpendicular to the first direction, the second adjustment screw one Exerts force on the relay assembly, which is at least partially opposite to the force exerted by the biasing element. [12] 12. A biasing element for an optical visor relay assembly comprising: a mounting plate; and a spring extending from the mounting plate, the mounting plate securing the spring to an inner surface of a housing of the optical visor, the spring having a free end having an engagement surface that contacts the relay assembly, and the spring being folded, that the free end of the spring overlaps with the mounting plate. [13] 13. The biasing element according to claim 12, wherein the mounting plate mimics a shape of the inner surface of the housing. [14] 14. The biasing element according to claim 12, wherein the mounting plate is arcuate. [15] 15. The biasing member of claim 12, wherein the mounting plate includes a plurality of openings for receiving a plurality of fasteners to secure the mounting plate to the inner surface of the housing. 21/30 [16] 16. The biasing element of claim 12, wherein the spring is a cantilevered flat spring extending from the mounting plate. [17] 17. The biasing element of claim 12, wherein the spring is an expansion spring that includes a first leg and a second leg and is folded so that the first leg overlaps the second leg through a bend in the spring. [18] 18. The biasing member of claim 12, wherein the engagement surface contacts a crosshair housing of a crosshair assembly disposed at one end of the relay assembly. [19] 19. The biasing member of claim 18, wherein the engaging surface applies a force to the crosshair assembly when the crosshair assembly and the relay assembly are installed in the housing. [20] 20. The biasing element of claim 19, wherein the engagement surface cooperates with an adjustment assembly having at least one tower to adjust a position of the crosshair assembly and the relay assembly within the housing.
类似技术:
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同族专利:
公开号 | 公开日 CZ2019462A3|2020-02-05| AT521537B1|2021-02-15| US10458752B1|2019-10-29| AT521537A3|2020-04-15| JP6861241B2|2021-04-21| CZ308616B6|2021-01-06| DE102019207625A1|2020-01-30| JP2020016430A|2020-01-30|
引用文献:
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申请号 | 申请日 | 专利标题 US16/045,190|US10458752B1|2018-07-25|2018-07-25|Folded relay spring for optical sight| 相关专利
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