Button assembly

专利摘要:
The button assembly according to the present invention comprises at least one button that can selectively operate one or more microswitches mounted on a printed circuit board in response to a bias. The at least one button is coupled to a plate containing a load application member. The load applying member is in contact with the housing. The housing is provided with a plurality of latches engaged with the printed circuit board to hold the button assembly together.
公开号:KR20020020811A
申请号:KR1020027001785
申请日:2000-08-10
公开日:2002-03-15
发明作者:리터다린브래들리；카디오마이클알랜；보세윌리엄호프만
申请人:추후제출；톰슨 라이센싱 에스.에이.；
IPC主号:

专利说明:

Button Assembly {BUTTON ASSEMBLY}
[2] Assemblies that selectively operate switch closures in response to manual movement of members, such as multifunction button assemblies, have increased in use and are often seen in instruments such as computer interfaces, joysticks, automotive mirror controls, and the like. One use of the multifunction button assembly is in telecommunication devices such as televisions and related peripheral devices (control boxes, remotes, video players, etc.). Multifunction buttons incorporated into these instruments allow the user to select responses to menu prompts in a fast and efficient manner with minimal user interface.
[3] Typically, the multifunction button comprises a printed circuit board provided with three basic elements: a button or a joystick actuator to interface with the user, a means of enabling movement to return the actuator to an unsuitable position, a micro switch, and the like. do. A common problem with these assemblies is the positional accuracy between the actuator and the micro switch. If an undesirable translational movement occurs in the movable means, the actuator may miss a corresponding switch, or may be caught in a switch or other peripheral structure (ie may be stuck). Commonly used staking, heat staking, pressing, sonic welding, etc. methods often align the actuator with a micro switch, or the multifunction button assembly maintains the printed circuit board at a predetermined distance from the actuator. Forces (and heat) may be applied that can overwhelm the positioning mechanism intended to prevent it from reaching its purpose. Such positional defects can eventually destroy the multifunction button assembly. Other forms of assembly that do not tend to fail to achieve the purpose of positioning mechanisms, such as screws and rivets, require additional components and, as a result, more assembly steps that must be completed.
[4] Accordingly, there is a need in the art for a multifunction button assembly that maintains a printed circuit board with good positional accuracy relative to the associated actuator. In addition, such a multifunctional button assembly should have a minimum number of parts, so that the assembly efficiency is good and the material cost should be minimized.
[1] The present invention relates generally to a push button assembly. More specifically, the present invention includes a plate provided with at least one loading member for applying a load to the assembly to prevent the engagement of a plurality of latches that engage the push button assembly. To a push button assembly.
[7] 1 is an exploded view showing a button assembly of the present invention.
[8] FIG. 2 is an elevational view of the housing of the button assembly shown in FIG. 1.
[9] 3 is a plan view of the housing of the button assembly shown in FIG.
[10] 4 is an elevational view of the button assembly guide taken along line 4-4 of FIG.
[11] 5 is a perspective view of a selector button of the button assembly shown in FIG. 1.
[12] FIG. 6 is a perspective view showing a first side surface of the plate of the button assembly shown in FIG. 1. FIG.
[13] FIG. 7 is a perspective view illustrating a second side surface of the plate illustrated in FIG. 6. FIG.
[14] FIG. 8 is a detailed view of the gimbal assembly of the plate shown in FIG. 7. FIG.
[15] 9 is a cross-sectional view of the button assembly of FIG. 1 with a bias applied to the selector button.
[16] 10 is a cross-sectional view showing the button assembly of FIG. 1 with the biasing force removed.
[17] 11 is an exploded view showing a second embodiment of the button assembly.
[18] 12 is an exploded view of the plate of the button assembly shown in FIG. 11.
[5] The aforementioned problems associated with the prior art are solved by the button assembly according to the invention. The button assembly of the present invention includes a housing, a plate, at least one button and a printed circuit board disposed at a predetermined distance from the plate. The housing is provided with holding means for holding the plate between the housing and the printed circuit board. The plate is provided with at least one load applying means for generating a force for holding the holding means in engagement with the printed circuit board when it strikes the housing. The at least one button is coupled to the plate, partially protrudes through the housing, and may selectively bias at least one switch mounted on the printed circuit board.
[6] The teachings of the invention can be easily understood through the following detailed description in conjunction with the accompanying drawings.
[19] For ease of understanding, like reference numerals have been used to designate like elements in common in the figures.
[20] 1 shows a switch assembly 100 comprising a housing 102, a plate 106, at least one button 103 and a printed circuit board 108. The plate 106 is disposed between the housing 102 and the printed circuit board 108. The housing 102 is provided with a plurality of retaining means 119 that engage the printed circuit board 108 to engage the switch assembly 100.
[21] The housing 102 is shown in more detail in FIGS. 2 and 3. The reader is encouraged to refer to FIGS. 1 to 3 simultaneously for the best understanding of the housing 102.
[22] The housing 102 is preferably made of a moldable plastic material. The housing 102 has a first surface 110 that is angled and continues to the second surface 112. The retaining means 119, the tab 124, the pin 126 and the pair of assembly guides 200 protrude from the second surface 112. The holding means 119 is preferably a plurality of latches 120 (eg four). Each latch 120 includes a flexible member 208 and catch portion 210. In the figure, the latches 120 are generally arranged in a rectangular array around a hole 118 formed in the center of the second surface 112. Alternatively, other retaining means 119 may be used, such as posts and screws, heat staking, sonic welding, push connectors, rivets, and the like. Those skilled in the art will appreciate that the housing 102 only needs to be held in a predetermined position relative to the plate 106 and the printed circuit board 108. As such, other structures may be used to maintain this orientation.
[23] The holes 118, tabs 124, and pins 126 are disposed along the centerline 300 of the housing 102. The hole 118 is between the tab 124 and the pin 126. An axial center line 174 passes through the center of the hole 118 and intersects with the center line 130. Tab 124 is connected to first surface 110 and second surface 112. Tab 124 and pin 126 are used to position plate 106 in relation to housing 102. As such, those skilled in the art will be able to devise other geometries and positions of tab 124 and pin 126 that provide the same positional relationship.
[24] The assembly latch 114 protrudes from the housing 102 along the centerline 300 in the direction opposite to the first surface 112. Assembly latch 114 includes a flexible member 115 and catch portion 116.
[25] Each assembly guide 200 located in two mirror-centered relations with respect to the center line 300 has an alignment surface 202 and guide surface 402 coupled to the second surface 112 of the housing 102. There is a stanchion 201. The orientation of the alignment surface 202 defines an imaginary line 302 that is substantially parallel to the center line 300. Guide surface 402 is oriented to form an acute angle with imaginary line 302 as indicated by arrow 304. Alignment surface 202 and guide surface 402 share a lip 204 that is acute with respect to second surface 112, as indicated by arrow 206. Lip 204 is disposed outside of assembly guide 200.
[26] Assembly latch 114 and assembly guide 200 facilitate installation of button assembly 100 within an enclosure such as a television, television remote, cable control box, or the like (not shown). The catch portion 116 of the assembly latch 114 engages with a surface in the enclosure to keep the button assembly 100 in a position where the first surface 110 and the outside of the enclosure are preferably coplanar. The assembly guide 200 uses the guide surface 402 to roughly align the button assembly 100 with respect to the enclosure, and then the alignment surface 202, together with the lip 204, is a mating surface inside the enclosure. Interface with the button assembly 100 in an advantageous position relative to the enclosure.
[27] In one embodiment, the selector button 104 shown in detail in FIG. 5 includes at least one button 103. The reader is recommended to refer to FIGS. 1 and 5 simultaneously for the best understanding of the selector button 103. In the preferred embodiment, a selector button 104 (ie, this button can selectively activate one or more switches) that functions as a multifunction selector is used, but a single operation such as a button described in the second embodiment below. Note that you can easily replace it with an expression button.
[28] The selector button 104 is preferably made of moldable plastic or elastomer (eg polycarbonate). The selector button 104 has a first side 122 and a second side 510. The plurality of actuators 162, 164, 166, and 168 are arranged at equal intervals around the selector button 104 of the second side surface 510 in the form of a polar array. Each actuator has a support 504 that connects the outward facing pad 506 to the selector button 104. The pad 506 has a contact surface 508 that is substantially perpendicular to the centerline 174.
[29] A boss 128 is disposed in the center of the second side 510 of the selector button 104. The boss 128 has a plurality of flutes 502 disposed axially along the outer periphery of the boss 128.
[30] Plate 106 is shown in detail in FIGS. 6 and 7. The reader is encouraged to refer to FIGS. 1 and 6 and 7 simultaneously for the best understanding of plate 116.
[31] The plate 106 has a first side 602 and a second side 702 that meet at the first edge 604 and the second edge 606. The plate 106 is preferably made of moldable elastomer or plastic. Selection of the cross-sectional area and material of the particular member described below should be made to provide the desired feel and provide an acceptable lifetime during operation. The inventors have found that the plate 106 formed of polycarbonate provides a “positive” feel and a long life during operation of the button assembly 100.
[32] The plate 106 is provided with a plurality of first standoffs 704, a plurality of second standoffs 706, and at least one load applying member 608. The first standoff 704 protrudes from the plate 106 to keep the printed circuit board 108 at a predetermined distance from the plate 106. The second standoff 706 helps to keep the printed circuit board 108 at a predetermined distance from the plate 106. Each second standoff 706 is provided with a pin 708 that is coupled to the corresponding hole 140 of the printed circuit board 108 to determine the position with respect to the plate 106 of the printed circuit board 108. Pins 708 and corresponding holes 140 may be deflected or replaced with other types of positioning structures commonly known in the art.
[33] The first tab 716 and the second tab 718 protrude outward from the second edge 606. The slot 720 formed at the center along the center line 710 is defined by the first tab 716 and the second tab 718. The centerline 710, which intersects the centerline 174, also passes through a hole 726 and a gimbal assembly 130 formed in the plate 106. Slots 720 and holes 726 are engaged with tabs 124 and pins 126 of housing 102, respectively, to position the housing 106 of plate 106. These positioning means (ie tab 124 and pin 126) may be placed elsewhere to achieve similar results.
[34] At least one load application member 608 includes a flexible arm 610 that couples the contact member 612 to the plate 106. The contact member 612 extends over the surface of the first side 602. The geometry of the height of the contact member 612 and the cross section of the flexible arm 610 is chosen to impart at least minimal load to the plate 106 at assembly, as described below. In a preferred embodiment, two load application members 608 are disposed symmetrically about the gimbal assembly 130 (ie, one per side).
[35] Gimbal assembly 130 is disposed at the center of plate 106. 1 and 8, the gimbal assembly 130 is provided with a first cross member 832, a second cross member 834, an outer ring 836, and an inner ring 838. Outer ring 836 is aligned concentrically with inner ring 838 along centerline 174. The first crossing member 832 connects the outer ring 836 to the plate 106 in two opposing positions. The second crossing member 834 connects the outer ring 836 to the inner ring 838 at two opposite positions as well. The first cross member 832 is preferably disposed in an orthogonal orientation with respect to the second cross member 834. The first crossing member 832 and the outer ring 836 are configured to form a plurality of passages 840 between the outer ring 836 and the plate 106. Passage 840 allows actuators 162-168 to pass through plate 106 when connecting selector button 104 to gimbal assembly 130 in a manner described below. Those skilled in the art will appreciate that the gimbal assembly 130 of various modifications allows the actuators 162, 164, 166, 168 to pass through the plate 106 within the scope of the teachings herein. I can understand that you can devise.
[36] The first crossing member 832 forms a first axis of rotation 802. In conjunction with the material selection of the plate 106, the cross-sectional area of the first cross member 832 is such that the first cross member 832 is first rotated such that the outer ring 836 can rotate as indicated by the arrow 804. Allows wheel counting (ie, twisting) along axis 802. The second crossing member 834 likewise forms a second axis of rotation 806. The reader should note that the second axis of rotation 806, like the second crossing member 834, remains in the plane formed by the outer ring 836. In conjunction with the material selection of the plate 106, the cross-sectional area is such that the second cross member 834 is rotated a second time so that the inner ring 838 can rotate relative to the outer ring 836 as indicated by arrow 808. Allows wheel counting (ie, twisting) along axis 806. Through this combined rotation about the rotational axes 802, 806, the inner ring 838 pivots by the intersection of the first rotational axis 802, the second rotational axis 806 and the centerline 174. It is possible to pivot about the plate 106 about the point 842. Thus, translation of the inner ring 838 relative to the plate 106 is substantially prevented.
[37] The inner ring 838 has a plurality of protruding fingers 844 disposed in the form of a polar array around the inner diameter portion 846. The boss 128 passes through an inner diameter 846 such that the flute 502 is aligned between the plurality of protruding fingers 844 to orient the selector button 104 with the plate 106. The boss 128 and the protruding fingers 844 are formed to be interfitted to hold the selector button 104 in the gimbal assembly 130.
[38] Referring again to FIG. 1, the printed circuit board 108 includes at least one switch. This at least one switch is preferably composed of a plurality of switches (ie four micro switches 132 to 138). Although the number of micro switches is preferably four, those skilled in the art will be able to easily modify the selector button 104 and gimbal assembly 130 to accommodate additional (or fewer) micro switches. The micro switches 132 to 138 are arranged in the form of a polar array around the center line 174. A plurality of positioning holes 140 are coupled with the pins 708 so that the micro switches 132 to 138 remain aligned with the corresponding actuators 162 to 168 of the selector button 104. 108).
[39] The printed circuit board 108 has a first edge 142 and a second edge 160 opposite thereto. The first edge 142 includes a first protruding tab 144, a second protruding tab 146, and a third protruding tab 148. A first notch 152 is formed between the protruding tabs 144 and 146, and a second notch 150 is formed between the protruding tabs 146 and 148. The second edge 160 has a protruding central portion 158 that separates the third notch 156 and the fourth notch 154. These notches 150, 152, 156, 154 are arranged such that the latch 120 of the housing 176 engages with the printed circuit board 108 to hold the circuit board when assembled, as shown by the phantom line 176.
[40] The button assembly 100 is assembled by first connecting the selector button 104 to the gimbal assembly 130 of the plate 106. The plate 106 has a selector button 104 that partially protrudes through the hole 118 of the housing 102 and the tabs 124 and the pin 128 correspond to the corresponding slots 720 and holes of the plate 106. It is set in the housing 102 to be coupled to 726. Next, the printed circuit board 108 aligns the pins 708 with the holes 140 (along the virtual lines 172), respectively, and catches the latch portions of the latches 120 protruding from the housing 120. 210 is placed near plate 106 by snapping it to each land portion 150-156 of printed circuit board 108 (e.g., at one of four locations as shown by phantom line 176). do. The first standoff 704 and the second standoff 706 keep the printed circuit board 104 at a predetermined distance from the plate 106. The contact member 612 of the load applying member 608 abuts the second surface 112 of the housing 102 so that the flexible arm 610 bends and the catch portion 210 of the latch 120 is a printed circuit board. By applying a force to engage 108, it prevents unnecessary movement of the component and possible disengagement.
[41] The operation of the button assembly 100 can be best understood through FIGS. 9 and 10. The button assembly 100 allows the user to selectively activate the desired switch on the printed circuit board 108, for example, to select and navigate a menu to obtain the desired result. For example, the selector button 104 is operated by the biasing force 900, ie by pressing the selected portion of the selector button 104. The selector button 104 rotates about the pivot point 842 in response to the biasing force 900, as indicated by arrow 902, such that the actuator 168 is attached to the printed circuit board 108. 136) to be pressed, i.e. actuated. When the biasing force 900 is removed, the elasticity of the transverse members (832 and 834 as seen in FIG. 8) causes the selector button 104 to return to the non-convenient position as indicated by the arrows, thereby providing a micro switch ( 136) is deactivated. The selector button 104 may be convenient to actuate any single micro switch by applying a biasing force 900 to the selector button 104 over the desired micro switch. Alternatively, any pair of adjacent micro switches (ie 132 and 134, 134 and 136, 136 and 138, 138 and 132) may also be biased by applying a bias 900 to the selector button 104 between the desired micro switches. It may be.
[42] A second embodiment of the button assembly 100 is shown in FIGS. 11 and 12. Specifically, this second embodiment includes a housing 102, a plate 106, a selector button 104, and a printed circuit board 108. The plate 106 is disposed between the housing 102 and the printed circuit board 108. The housing 102 is provided with a plurality of retaining means 119 that engage the printed circuit board 108 to engage the switch assembly 100. What distinguishes the second embodiment from the first embodiment is a plurality of buttons 1104 (eg, four) that surround the selector button 104. The button 1104 protrudes through the housing 102 through the corresponding opening 1102. The button 1104 activates the corresponding microswitch 1106 of the printed circuit board 108 (along the virtual line 1108).
[43] Each button 1104 is coupled to the plate 106 via a double cantilever hinge 1202. The hinge 1202 includes a U-shaped member 1204 provided with ends 1206 and 1208 that attach the hinge 1202 to the plate 106. The hinge center portion 1210 is connected to a cantilever member 1212 coupled to the button center portion 1214. The button center portion 1214 is provided with an internal flange 1216 that operates each micro switch when the button 1104 is biased. Each button 1104 also includes a load application member 608 implemented as a cylindrical flange 1105. The cylindrical flange 1105 bends the hinge 1202 against the second surface 112 of the housing 102 and generates a force that allows the latch 120 to engage the printed circuit board 108.
[44] An alternative embodiment of the button 1214 includes a hollow body 1218 with a bottom portion 1220. A passage 1222 is formed at the center of the bottom portion 1220. Translucent plug 1224 provided with nubs 1226 is inserted into hollow body 1218 so that nubs 1226 fit into passage 1222. An LED or similar device (not shown) on the printed circuit board 108 illuminates the plug 1224, allowing the user to see the illuminated nubs 1226.
[45] While embodiments and implementations of the teachings of the present invention have been illustrated and described in detail, those skilled in the art will be able to readily devise other variations of the embodiments that still implement these teachings without departing from the scope of the invention. .

权利要求:
Claims (23)
[1" claim-type="Currently amended] A device for operating at least one switch,
A housing provided with a holding means,
A plate disposed near the housing and including at least one load applying member in contact with the housing;
At least one button coupled to the plate and partially protruding through the housing;
A printed circuit board disposed at a predetermined distance from the plate, coupled to the housing by the holding means, and provided with at least one micro switch that can be biased by the at least one button
Device comprising a.
[2" claim-type="Currently amended] The apparatus of claim 1, wherein the at least one button further comprises a selector button provided with a plurality of actuators.
[3" claim-type="Currently amended] The apparatus of claim 2, wherein the printed circuit board further comprises four micro switches selectively operated by the selector button.
[4" claim-type="Currently amended] The device of claim 1, wherein the retaining means further comprises a plurality of latches, each latch being provided with a catch portion for engaging the printed circuit board.
[5" claim-type="Currently amended] The apparatus of claim 1, wherein the plate further comprises a gimbal assembly.
[6" claim-type="Currently amended] The apparatus of claim 5, wherein the gimbal assembly comprises: a first cross member coupled to the plate, an outer ring connected to the first cross member, an inner ring concentrically aligned with the outer ring and provided with a plurality of fingers; And a second crossing member coupled to the outer ring and the inner ring, wherein the at least one button is held in the gimbal assembly by the plurality of fingers.
[7" claim-type="Currently amended] The device of claim 6, wherein the second crossing member is disposed to be orthogonal to the first crossing member.
[8" claim-type="Currently amended] 8. The apparatus of claim 7, wherein the first cross member and the outer ring and plate form a plurality of passages in the plate, and the plurality of actuators each pass through the plurality of passages.
[9" claim-type="Currently amended] The apparatus of claim 1, wherein the at least one load application member is two load application members.
[10" claim-type="Currently amended] 10. The apparatus of claim 9, wherein each load application member further comprises a contact member in contact with the housing and a flexible arm coupling the contact member to the plate.
[11" claim-type="Currently amended] The apparatus of claim 1, wherein the selector button selectively operates only one of the micro switches or selectively operates an adjacent pair of micro switches.
[12" claim-type="Currently amended] The device of claim 1, wherein the plate consists of polycarbonate.
[13" claim-type="Currently amended] The apparatus of claim 1 further comprising at least one button comprising a selector button surrounded by the plurality of buttons.
[14" claim-type="Currently amended] The apparatus of claim 13, wherein the plurality of buttons is four buttons.
[15" claim-type="Currently amended] The apparatus of claim 13, wherein the plurality of buttons are coupled to the plate via a dual cantilever hinge.
[16" claim-type="Currently amended] 18. The apparatus of claim 17, wherein the plate further comprises a plurality of pins each coupled to a corresponding hole formed in the printed circuit board, a first protruding tab and a second protruding tab forming a slot, wherein the slot protrudes from the housing. The device being combined with the tab.
[17" claim-type="Currently amended] A device for operating at least one switch,
A selector button having a boss and a plurality of protruding actuators,
A housing provided with a hole, a plurality of latches, the selector button partially disposed within the protruding actuator,
A plate provided with a gimbal, a plurality of standoffs and at least one load application member, the gimbal being connected to the selector button, wherein the at least one load application member is in contact with the housing;
A printed circuit board disposed to face a plurality of standoffs of the plate and provided with a plurality of switches aligned with the plurality of protruding actuators
Including,
And the selector button may be convenient to cause at least one of the plurality of actuators to selectively operate the at least one switch.
[18" claim-type="Currently amended] 18. The apparatus of claim 17, wherein the selector button selectively operates only one of the micro switches or selectively operates an adjacent pair of micro switches.
[19" claim-type="Currently amended] 18. The apparatus of claim 17, wherein the plate further comprises a plurality of buttons disposed around the gimbal.
[20" claim-type="Currently amended] 20. The apparatus of claim 19, wherein the printed circuit board further comprises a plurality of second micro switches, wherein the plurality of buttons can be conveniently adapted to operate corresponding micro switches of the plurality of second switches, respectively.
[21" claim-type="Currently amended] 20. The apparatus of claim 19, wherein the plurality of buttons is four.
[22" claim-type="Currently amended] The apparatus of claim 17, wherein the at least one load applying member further comprises a contact member in contact with the housing and a flexible arm connecting the contact member to the plate.
[23" claim-type="Currently amended] 18. The apparatus of claim 17, wherein the plate further comprises a plurality of pins each coupled to a corresponding hole formed in the printed circuit board, a first protruding tab and a second protruding tab forming a slot, wherein the slot protrudes from the housing. The device being combined with the tab.

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
1999-08-13|Priority to US09/374,368

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1999-08-13|Priority to US09/374,368

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2000-08-10|Application filed by 추후제출, 톰슨 라이센싱 에스.에이.

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2000-08-10|Priority to PCT/US2000/021877

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2002-03-15|Publication of KR20020020811A

优先权:

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申请号 | 申请日 | 专利标题

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US09/374,368|1999-08-13|

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US09/374,368|US6096985A|1999-08-13|1999-08-13|Button assembly|

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PCT/US2000/021877|WO2001013394A1|1999-08-13|2000-08-10|Button assembly|