• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a ball-and-socket mounting device which can be used for attaching an armrest, a camera tripod, measuring instruments, etc. This device comprises an arm holding at one (3, 4) of its ends a ball joint (5) intended to be fixed to an object to be positioned in space and a clamping mechanism cooperating with the arm, (1, 2 ), and it has the particularity that the arm is composed of a pair of half-arms each comprising a hollow end (3, 4) capable of receiving a part of the ball joint (5) and in that it further comprises a ring (7) able to hold together the hollow ends (3, 4) and the ball joint (5), so that, when the clamping mechanism (9, 12, 15, 16) is actuated, the half-arms are thus bring together and immobilize the first ball joint (5) in its position.
    公开号:CH716869A2
    申请号:CH01674/19
    申请日:2019-12-20
    公开日:2021-05-31
    发明作者:Vaucher Richard
    申请人:Voh Sa；
    IPC主号:
    专利说明:

    Technical field of the invention
    The present invention relates to a ball-and-socket fixing device. Such a device can be used for various applications, in particular for fixing an armrest, a tripod for a camera, measuring instruments, etc.
    State of the art
    It is known to use a ball joint to fix the position of an armrest. By way of example, patent application in the United States of America No. US 2015/0028645 proposes an adjustable armrest device, comprising a hollow shaft threaded at both ends, two ball joints housed partially in two screwed threaded parts. at the ends of the shaft, two bushes located inside the rod between the threaded parts, separated by a helical spring and each pressing on a respective ball joint. One of the ball joints is fixed to a support placed on the ground and the other under a support surface for the arm of a user. The change of position of the armrest and the locking of its position are effected by means of two branches integral with the threaded part located at the upper end of the rod.
    [0003] Other documents illustrating known devices exist, all however describing solutions which have a complicated construction, expensive or difficult to manufacture, which lack flexibility for fine adjustment, or which require significant force and / or tools particular in order to enable the device to be actuated and fixed in a given position.
    Brief description of the invention
    [0004] The main object of the present invention is to provide a ball-and-socket fixing device other than those known from the state of the art, which in particular facilitates changes of position and fixing to a desired position, while allowing actuation easy, not requiring the application of a large force.
    This object is achieved in particular by a ball-joint fixing device comprising a first arm now at one of its ends a first ball-joint intended to be fixed to an object to be positioned in space, and a cooperating clamping mechanism with the arm,this device being distinguished in that the first arm is composed of a pair of half-arms each comprising a hollow end capable of receiving a part of the first ball joint and in that it further comprises a first ring capable of holding together the hollow ends and the first ball so that, when the clamping mechanism is actuated, the half-arms come closer and thus immobilize the first ball in its position.
    Advantageous characteristics of this device are indicated in the following points 2 to 11: 2.- Device according to point 1, in which the hollow ends of the half-arms have external grooves provided to receive the first ring. Thanks to such grooves, the positioning and fixing of the first ring can be done in a simple and efficient manner. 3.- Device according to one of points 1 or 2, in which the hollow ends of the half-arms have external threads provided to cooperate with an internal thread of the first ring. Thanks to such threads, the fixing of the first ring can be achieved in an even more solid and secure manner.
    These two embodiments therefore make it possible to obtain good fixing of the hollow ends of the half-arms.
    4.- Device according to one of the preceding points, in which the clamping mechanism is located at the ends of the half-arms opposite the ends which hold the first ball joint.
    5.- Device according to one of the preceding points, in which the clamping mechanism comprises a support to allow that, when the clamping mechanism is actuated, the relative movement between the half-arms and the support is blocked.
    Thanks to such a support, the approximation between the two half-arms can be blocked when the two half-arms approach sufficiently and, at the same time, the relative movement between the half-arms, therefore typically the pivoting around the axis of rotation of the clamping mechanism can also be blocked.
    6.- Device according to the previous point, in which the support is a spacer positioned between the half-arms.
    7.- Device according to one of the preceding points, in which the clamping mechanism comprises elastic means in order to separate the half-arms when the clamping mechanism is released.
    This allows easier handling of the device, especially when it is opened.
    8.- Device according to one of the preceding points, further comprising a second pair of half-arms each comprising a hollow end adapted to receive a part of a second ball joint, and a second ring adapted to hold together the hollow ends of the half-arms of this second pair and the second ball joint, so that, when the tightening mechanism is actuated, the half-arms come closer and thus immobilize the second ball joint in its position.
    9.- Device according to point 8, wherein the hollow ends of the half-arms of the second pair have external grooves provided to receive the second ring.
    10.- Device according to one of points 7 or 8, wherein the hollow ends of the half-arms of the second pair have on their outer face a thread provided to cooperate with an internal thread of the second ring.
    11.- Device according to one of points 7 to 10, wherein the clamping mechanism is located at the ends of the half-arms of the second pair opposite the ends which hold the second ball.
    12.- Device according to one of points 7 to 11, wherein the ends of the half-arms of the second pair opposite to those which hold the second ball joint are arranged between the ends of the half-arms of the first pair opposite the ends which hold the first patella.
    13.- Device according to one of the preceding points, in which the elastic means is a spring placed between the ends of the half-arms of the first pair opposite the ends which hold the first ball and, where appropriate, between the ends of the half-arms of the second pair opposite the ends that hold the second ball joint.
    Brief description of the drawings
    Other advantages and characteristics of the invention will now be described in detail in the following description which is given with reference to the appended figures, which schematically represent: Figure 1: a first embodiment of the fixing device to ball joint according to the invention, in sectional front view; Figure 2: the device of Figure 1, in top view; Figure 3: part of the device of Figures 1 and 2, in perspective; Figure 4: another part of the device of Figures 1 and 2 from another perspective; FIG. 5: a second embodiment of the ball-and-socket fixing device according to the invention, in top view; Figure 6: the device of Figure 5, in front view in section; Figure 7: part of the device of Figures 5 and 6, in sectional front view; Figure 8: the part of Figure 7, in top view; Figure 9: the part of Figures 7 and 8, in perspective; FIG. 10: variants of two parts of the device according to the first or the second embodiment of the invention, in partial view of the cut face; and Figure 11: an enlargement of the variants of Figure 10.
    Detailed description of the invention
    First embodiment of the invention
    A first embodiment of the ball-and-socket fixing device according to the invention is shown in Figures 1 to 3.
    As can be seen in Figure 1, the device according to the invention firstly comprises two half-arms 1, 2 which maintain at their ends 3, 4 a ball 5 to which it is intended to fix a object (not shown) that you want to position in space.
    The shape of each half-arm 1, 2 is detailed in Figures 2 and 3. The end 3 of the half-arm 1 (on the left in the figure) has a hollow 19 which can contain approximately half of the ball of the patella 5. At the very end of the outer face of this end 3 is provided a groove 6 visible in Figure 2 or 3, in which it is planned to insert approximately half of a ring 7, after placing the ball joint 5.
    Preferably, the cross section of the groove 6 is substantially in the shape of a semicircle and the ring 7 has a cross section of which at least part has the shape of a semicircle corresponding to that of the groove 6 This allows the half-arm 1 to be able to easily pivot relative to the ring 7. However, the sections of the groove 6 and of the ring 7 can also have other shapes allowing a good fixing with a flexibility necessary for handling. of the device.
    A groove 8 (Figure 3) similar or identical to the groove 6 is provided in the other half-arm 2 so that there can be inserted roughly the other half of the ring 7. Thus, when the two half-arms 1, 2 are arranged parallel, the ball joint 5 is trapped by the hollow 19 of the half-arm 1 and the hollow 20 of the half-arm 2, the half-arms 1, 2 being held in position using the ring 7.
    In order to be able to immobilize the ball 5, there is provided a clamping mechanism comprising several parts shown in Figure 1. At this location, it is important to mention that the embodiment of the clamping mechanism shown in Figure 1 is only an alternative embodiment of the invention and that other equivalent embodiments, included within the scope of the present invention, are absolutely possible. An example of such a further embodiment is the use of a quick release axle with a lever at one end, as used eg for securing bicycle wheels.
    In this case, the exemplary clamping mechanism shown in Figure 1 comprises a threaded part which takes the form of a threaded rod 9 and which is screwed into a threaded hole 11 which passes through the half-arm 2, then a non-tapped hole 10 provided in the half-arm 1 and ends in a nut 16.
    The holes 10 and 11 are located at the ends of the half-arms 1, 2 which are opposite to those which hold the ball 5.
    The tapping of the hole 11 is the only difference between the half-arm 2 and the half-arm 1. However, it is also possible to provide an embodiment in which the two half-arms 1 and 2 comprise tapped holes or non-tapped holes, as required.
    Preferably, the half-arms 1 and 2 have a reduced thickness at the level of the holes 10 and 11, on their internal faces, that is to say those which are intended to be one in front of the 'further, so as to provide an internal space 27 in which an elastic means such as a spring 15 can be inserted, preferably around the rod 9. The presence of the elastic means 15 is only optional, the present invention working as well in the absence of such an elastic means.
    At the lower end 14 of the rod 9 is a means such as a handle 12 integral with the rod 9 and which allows a user to drive the latter in rotation.
    Between the half-arm 2 and the handle 12 is interposed a support 13 for fixing the device according to the invention.
    Thus, when the user turns the handle 12 in the direction of clockwise, the rod 9 integral with this handle 12 is screwed inside the hole 11 of the half-arm 2 and its upper end fixed to the nut 16 brings the half-arm 1 closer to the half-arm 2, which brings the end 3 of the half-arm 1 closer to the ball joint 5 by opposing the force of the spring 15 and tightens this ball 15 to the 'inside the hollows 19, 20 substantially hemispherical, which has the effect of immobilizing and also freezing the position of the ball 5. In addition, the half-arm 2 is pressed against the support 13, which makes it impossible pivoting of the half-arm 2 relative to the support 13 about the axis of the rod 9. The entire device is therefore immobilized.
    It is important to mention that the function of the support 13 is essential for the proper functioning of the device according to the present invention. However, the position of the support 13 can vary and, as shown in Figure 6 in relation to the second embodiment of the invention, it can also be located between the half-arms 1, 2 (and the half-arms 21 , 22 mentioned later), as shown with reference numeral 28.
    On the other hand, when the user turns the handle 12 counterclockwise, he unscrews the rod 9. If present, the spring 15 then exerts pressure against the half-arm 1 , the latter moves away from the half-arm 2, which releases the ball 5 at the level of the end 3 and at the same time releases the pressing of the half-arm 2 against the support 13. The ball 5 can therefore turn on itself and the half-arm 2 and, therefore, the entire device can pivot on the support 13 around the axis of the rod 9. In other words, the fixing device according to this first embodiment of the present invention makes it possible to fix or release the ball 5 and the arm 1, 2 at the same time, using a single tightening operation.
    At this point, it is important to mention that the fixing device according to the present invention has the characteristic of making possible a very simple clamping and fixing in position, not requiring the application of a very large force. Indeed, the clamping mechanism is designed in such a way that a small rotation of the handle 12 makes it possible to apply a large force to the half-arms 1, 2 and to fix them in position reliably. In addition, thanks to the clever choice of the ratio of the lever arms between the elements of the fixing device, a small force at the ends of the half-arms 1, 2 makes it possible to obtain a large force at the level of the ends of the half-arms. 1, 2, in contact with the ball 5. Thus, a small force applied to the tightening mechanism allows both to reliably and efficiently tighten the ball 5 and to immobilize the entire device relative to the external support 13.
    Second embodiment of the invention
    Figures 5 to 8 relate to a second embodiment of the invention, in which there is further provided a second pair of half-arms 21, 22 acting substantially as the two half-arms 1 and 2 for maintain and fix a second ball 18 intended to be fixed to an object (not shown) to be positioned in space.
    The half-arms 21, 22 have hollow ends 38, 39 substantially hemispherical (see Figure 7) similar to the hollow ends 19, 20 and each adapted to receive a part of the second ball 18.
    A second ring 23 similar to the ring 7 is provided to hold together the ball 18 and the hollow ends 24, 25 of the half-arms 21, 22. At the ends of the outer faces of the latter are formed grooves 26, 27 similar to the grooves 6,8 and intended to receive the second ring 23 and allow a slight rotation of the half-arms 21, 22 relative to this ring 23.
    As shown in Figure 5, the second pair of half-arms 21, 22 can also pivot around the axis of the clamping mechanism 9 through two holes 29, 30 coaxial with the holes 10, 11 and substantially of the same diameter, visible in particular in Figure 7.
    The second pair of half-arms 21, 22 is therefore also able to cooperate with the clamping mechanism to lock or unlock the second ball 18.
    In this second embodiment, and as already mentioned above, the support 13 (Figure 1) outside the half-arm 2 is replaced by a spacer 28 positioned between the half-arms 1, 2 and 21 , 22 (Figure 6) in order to limit the travel of these half-arms during the actuation of the clamping mechanism to prevent possible damage to the device and to ensure good immobilization of the arms of the device.
    Visible in Figure 6 is also a multiplier, useful for reducing the torque during the rotation of the handle 12. This is again an optional element which can be omitted or replaced by another similar element.
    Preferably, the half-arms 21, 22 have certain differences with respect to the half-arms 19, 20. These are optional characteristics which may also be present in the device according to the first embodiment of the invention. Indeed, as can be seen in particular in Figure 7, their ends opposite to those which hold the second ball 18 have been machined on their outer faces so as to have a reduced thickness which allows them to fit into the space 15, that is to say between the half-arms 1, 2, while leaving a gap 28 between these half-arms 21, 22 (see Figure 6).
    Preferably, housings 31, 32 are provided on the internal face of the half-arms 21, 22, around the holes 29, 30 in order to be able to receive the axial ends of the spring 15.
    It is also advantageous to provide, as can be seen in Figure 7, around the upper end of the hole 29 and around the lower end of the hole 30, respective bores 33, 34 to accommodate washers (Figure 6) facilitating the pivoting or locking of the joint, that is to say of the first pair of arms 1, 2 relative to the second pair of arms 21, 22.
    Alternatively or additionally, one can also provide in a similar manner (see Figure 7) that the internal faces of the arms 1 and 2, around the lower end of the hole 10 and around the upper end of the hole 11 of the Respective bores 35, 36 for accommodating washers (Figure 6) also facilitating the pivoting or locking of the pairs of arms relative to each other.
    Advantageously, it can be carried out a chamfering of the ends of the recesses 19, 20 and / or 24, 25 which are turned outwardly of the half-arms. The chamfers obtained, like the chamfer 37 visible in FIG. 6, make it easier to loosen the ball joints 5 and 18, when one wishes in particular to adjust the positions of the objects secured to these ball joints. They also increase the freedom of the range of motion of the ball joints 5 and 18.
    Figures 10 and 11 is shown an advantageous variant of the device according to the invention, the only difference being that the ends of the ends 3a, 4a of the half-arms comprising the hollows for the ball joints are provided on their outer faces with threads replacing the grooves 6, 8 or 26, 27 and that these threads cooperate with the tapping of a variant 7a of the rings 7 and 23.
    As best seen in Figure 11, the identical threads of the ends 3bis, 4bis of the half-arms are inclined, their common diameter increasing as they move away from the edges. The tapping of the ring 7a is inclined and its diameter increases to cooperate with the threads of the ends 3a, 4a. This variant, which applies both to the first pair of half-arms 1, 2 and to the second 21, 22, allows easier assembly of the half-arms, of the ball joint and of the ring 7a. Also, it allows easier adjustment of the preload of the ball joint.
    Here, again, it should be remembered that the fixing device according to the present invention makes it possible to tighten and fix in position very simple, not requiring the application of a very large force, thanks to the clever choice of the ratio of the lever arms between the elements of the fixing device. Accordingly, a small force applied to the clamping mechanism allows both to reliably and efficiently clamp the ball 5 and to immobilize the entire device.
    权利要求:
    Claims (13)
    [1]
    1. Ball joint fixing device comprising a first arm (1, 2) maintaining at one (3, 4; 3bis, 4bis) of its ends a first ball joint (5) intended to be fixed to an object to be positioned in the 'space, and a clamping mechanism (9, 12, 13, 15, 16, 28) cooperating with the first arm (1, 2),characterized in thatthe first arm (1, 2) is composed of a pair of half-arms (1, 2) each comprising a hollow end (3, 4; 3bis, 4bis) capable of receiving a part of the first ball (5) and in that it further comprises a first ring (7; 7bis) adapted to hold together the hollow ends (3, 4; 3bis, 4bis) and the first ball (5) so that, when the clamping mechanism (9 , 12, 13, 15, 16, 28) is actuated, the half-arms (1, 2) approach and thus immobilize the first ball (5) in its position.
    [2]
    2. Device according to claim 1, wherein the hollow ends (3, 4) of the half-arms (1, 2) comprise external grooves (6, 8) provided to receive the first ring (7).
    [3]
    3. Device according to one of claims 1 and 2, wherein the hollow ends (3a, 4a) of the half-arms (1, 2) have external threads provided to cooperate with an internal thread of the first ring (7a).
    [4]
    4. Device according to one of the preceding claims, wherein the clamping mechanism (9, 12, 13, 15, 16, 28) is located at the ends of the half-arms (1, 2) opposite the hollow ends (3, 4; 3bis, 4bis) which hold the first ball (5).
    [5]
    5. Device according to one of the preceding claims, wherein the clamping mechanism (9, 12, 13, 15, 16, 28) comprises a support (13) to allow that, when the clamping mechanism (9, 12, 13, 15, 16, 28) is actuated, the relative movement between the half-arms (1, 2) and the support (13) is blocked.
    [6]
    6. Device according to the preceding claim, wherein the support is a spacer (28) positioned between the half-arms (1, 2).
    [7]
    7. Device according to one of the preceding claims, wherein the clamping mechanism comprises elastic means (15) to separate the half-arms (1, 2) when the clamping mechanism is released.
    [8]
    8. Device according to one of the preceding claims, further comprising a second pair of half-arms (21, 22) each comprising a hollow end (38, 39) adapted to receive part of a second ball (18), and a second ring (23) adapted to hold together the hollow ends (38, 39) of the half-arms (21, 22) of this second pair and the second ball joint (18), so that, when the clamping mechanism ( 9, 12, 15, 16, 28) is actuated, the half-arms (21, 22) approach and thus immobilize the second ball (18) in its position.
    [9]
    9. Device according to claim 8, wherein the hollow ends (38, 39) of the half-arms (21, 22) of the second pair comprise external grooves (26, 27) provided to receive the second ring (23).
    [10]
    10. Device according to one of claims 8 or 9, wherein the hollow ends (38, 39) of the half-arms (21, 22) of the second pair comprise on their outer face a thread provided to cooperate with an internal thread. the second ring 23.
    [11]
    11. Device according to one of claims 7 to 10, wherein the clamping mechanism (9, 12, 15, 16, 28) is located at the ends of the half-arms of the second pair opposite the hollow ends (35, 36). ) which hold the second ball (18).
    [12]
    12. Device according to one of claims 7 to 11, wherein the ends of the half-arms (21, 22) of the second pair opposite the ends (38, 39) which hold the second ball (18) are arranged between the ends of the half-arms (1, 2) of the first pair opposite the ends (3, 4) which hold the first ball (5).
    [13]
    13. Device according to one of the preceding claims, wherein the elastic means is a spring (15) placed between the ends of the half-arms (1, 2) of the first pair opposite the ends (3, 4) which hold the first ball (5) and, where appropriate, between the ends of the half-arms (21, 22) of the second pair opposite the ends (38, 39) which hold the second ball (18).
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH15102019|2019-11-29|
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