TW202017793A - Clamp of bicycle workbench comprises a base, an elastic assembly, an actuating arm, a connecting rod assembly, and a clamping assembly - Google Patents

Abstract

The clamp of the bicycle workbench of the present invention comprises a base, an elastic assembly, an actuating arm, a connecting rod assembly, and a clamping assembly. The base has a receiving slot. The elastic assembly has a shaft penetrating a spring and a sliding seat and disposed in the accommodating groove. The clamping assembly comprises a fixing clamp body arranged on the base, and a movable clamping body pivotally connected with the base and is pivoted with the actuating arm. The connecting rod assembly has a first connecting rod and a second connecting rod that are pivotally connected. The first connecting rod is pivoted with the actuating arm. The second connecting rod is pivoted with the sliding seat. The second connecting rod is provided with a cam. When moved, the actuating arm can drive the first connecting rod and the second connecting rod to swing. The cam rolls and abuts against the shaft rod. The movable clamp body can be firmly clamped with the fixed clamping body.

Description

Fixture for bicycle workbench

The invention relates to a bicycle support frame, in particular to a clamp of a bicycle working table with better clamping effect.

Patent No. 572001 of the Republic of China, discloses a structure of a bicycle working platform, including a fixed clip body, a movable clip body, an adjustment base and a control rod, the adjustment base is arranged on the fixed clip body, the control rod The control base penetrates the adjustment base and respectively penetrates outside the fixed clamp body and the movable clamp body, the control lever penetrates a pivoting pole outside the movable clamp body, and a fixed pressure piece is sleeved on the control lever And extends outside the fixed clip, the fixed pressure piece can limit the axial displacement of the control rod, thereby adjusting the opening and closing state of the movable clip body relative to the fixed clip body; conventional bicycle workbench is used for larger tubes Before the bicycle of the diameter is clamped, the fixed pressure piece must be pulled to displace the control rod in order to adjust the distance between the movable clamp body and the fixed clamp body, and the fixed pressure plate and the card The angle of the lever of the fixed rod is relatively small, so as to provide a stable clamping effect, and the operation is a bit troublesome and inconvenient.

In addition, the aforementioned conventional bicycle display rack penetrates the fixed clip body and the coupling tube by a rod body, and locks the rod body by a lever, so that the fixed clip body can deflect at an appropriate angle relative to the coupling tube, It can change the angle of the bicycle frame tube being clamped on the bicycle workbench, which is convenient for workers to maintain various parts of the bicycle. However, there are other ways to achieve this effect. The structure of the case is limited.

The main purpose of the present invention is to provide a clamp for a bicycle working table, which can clamp bicycle frame tubes with different pipe diameters, and provide the effect of being clamped with the same force and being stable and easy to move.

Another object of the present invention is to provide a jig for a bicycle workbench, which has an adjustable angle at which the bicycle is clamped on the bicycle workbench, which is different from the prior art, and provides an effect of facilitating maintenance of various parts of the bicycle.

In order to achieve the above object, the present invention provides a clamp for a bicycle workbench, which can be connected to a support frame for clamping a bicycle frame tube, which includes: a base with a receiving groove; an elastic component, The shaft has a shaft, a spring and a sliding seat. The shaft is arranged in the accommodating groove. The shaft passes through the spring. The sliding seat is movably arranged on the shaft. One end of the spring is against the shaft One end of the accommodating groove, the other end of the spring pushes against the sliding seat; an actuating arm, one end has a pivoting portion, and the other end has a triggering portion, applying force to the triggering portion can make the pivoting Part pivot; a link assembly having a first link and a second link pivotally connected, the first link is pivotally connected to the pivoting portion of the actuating arm, the second link is connected to the The slide is pivotally connected, and the second link has a cam. When the first link is driven by the actuator arm, the second link is pivoted relative to the slide, so that the cam can be away from the shaft or close Rolling on the shaft; a clamping assembly having a fixed clamp body and a movable clamp body, the fixed clamp body is provided on the base, the movable clamp body is pivotally connected to the base, the movable clamp body and It is pivotally connected with the pivoting part of the actuating arm.

Thereby, applying force to the actuating arm of the present invention can drive the movable clamp body to open or collapse relative to the fixed clamp body. When the movable clamp body and the fixed clamp body are folded to clamp the bicycle frame tube , Due to the limitation of the connecting rod assembly and the elastic assembly, the actuating arm will not be easily pivoted and expanded. When clamping bicycle frame tubes of different diameters, the clamping force with the same force is more stable and the action is convenient Effect.

In order to explain the technical features of the present invention in detail, the following preferred embodiments are described below with reference to the drawings, in which:

As shown in FIGS. 1 to 8, a clamp 100 for a bicycle workbench provided by a preferred embodiment of the present invention includes: a base 10, an elastic component 20, an actuating arm 30, and a connecting rod The component 40 and a clamping component 50 are composed of:

The base 10 has an accommodating groove 11 with an opening facing upward. A first hole 12 is provided in the two groove walls of the accommodating groove 11, and a convex stop is provided in the accommodating groove 11 13. The base 10 is connected to the clamping assembly 50 at one end and a connecting rod body 14 at the other end. The structure and function of the connecting rod body 14 will be described later.

The elastic component 20 has a shaft 21, a spring 22 and a sliding seat 23, the shaft 21 is sleeved on the spring 22, the sliding seat 23 is movably disposed on the shaft 21, and one end of the spring 22 abuts against the One end of the accommodating groove 11, the other end of the spring 22 pushes against the sliding seat 23; the sliding seat 23 is a body with a bottom plate 231, two side walls 232 on both sides of the bottom plate 231 and an opening upward In the concave space 233, the two side walls 232 are provided with a first hole 234, the shaft 21 is a rectangular rod, one end cooperates with a pressing block 211 and two bolts 212 to be pivotally locked at one end of the accommodating groove 11, The other end of the shaft 21 extends into the concave space 233 of the sliding seat 23 and is disposed on the convex portion 13 in the accommodating groove 11, the sliding seat 23 can move along the shaft 21 And it is always held close to the convex stopper 13 by the spring 22 and is not blocked by the convex stopper 13 any longer.

The actuating arm 30 is provided with a pivoting portion 31 at one end and a triggering portion 32 at the other end. The pivoting portion 31 has two side pieces 311 and a movable space 312 between the two side pieces 311. The two sides Each of the sheets 311 is provided with a first hole 313 and a second hole 314.

The link assembly 40 has a first link 41 and a second link 42. The first link 41 has a top plate 411, two side walls 412 on both sides of the top plate 411, and a space between the two side walls 412 A recessed space 413 is provided with a first hole 414 and a second hole 415 on the two side walls 412, one end of the first link 41 is placed in the movable space 312 of the actuating arm 30, the first connection The first hole 414 of the lever 41 and the first hole 313 of the pivotal portion 31 of the actuating arm 30 allow a third pivot member 73 to pass through the pivotal connection; the second link 42 is an elongated block, Two ends are provided with a first hole 421 and a second hole 422, one end of the second connecting rod 42 extends into the concave space 413 of the first connecting rod 41, the second hole of the second connecting rod 42 422 is pivotally connected to the second hole 415 of the first link 41 through a fourth pivot member 74, and the other end of the second link 42 is inserted into the concave space 233 of the slide 23 The second link 42 is pivotally connected to the first hole 421 and the first hole 234 of the slide 23 through a fifth pivot member 75. The second link 42 is connected to the first hole 421 and the first A cam 423 is provided between the two holes 422, and the cam 423 is provided on the bottom surface of the block body in a convex arc shape.

The clamping assembly 50 has a fixed clamping body 51 and a movable clamping body 52. The fixed clamping body 51 and the movable clamping body 52 each have a clamping portion 511 and 512. The fixed clamping body 51 is disposed on the base 10 And adjacent to the first hole 12, a first hole 522 and a second hole 523 are provided on the movable clip 52, the movable clip 52 uses the first hole 522 and the first hole 12 of the base 10 A first pivot member 71 is passed through the pivot joint, and the movable clamp body 52 is partially placed in the movable space 312 of the actuating arm 30. The movable clamp body 52 is connected to the pivot joint through the second hole 523 The second hole 314 of 31 allows a second pivot member 72 to pass through the pivot connection.

The first pivot member 71, the second pivot member 72, the third pivot member 73, the fourth pivot member 74 and the fifth pivot member 75 have the same structure, and only the first pivot member 71 is representative Reference numerals and descriptions. In the embodiment of the present specification, the first pivot 71 has a rod body 711 and a C-shaped tab 714. The rod body 711 has an enlarged portion 712 at the head end and a groove 713 at the tail end When the rod body 711 penetrates from the side of the first hole 12 and blocks the outside of the circumference of the first hole 12 with the enlarged portion 712, passes through the first hole 522 of the movable clip body 51 from the The other side of the first hole 12 penetrates, the groove 713 cooperates with the C-shaped tab 714 and is limited to the outside of the circumference of the other side of the first hole 12, which is conventional and not the main part of the present invention The characteristic technology may also have other different structures, which is not limited to what is described in this specification and will be specified here.

The structure of the present invention has been described above, and then the operating state of the present invention will be described.

With the above structure, please refer to FIG. 4 and FIG. 5, when the clamp 100 of the bicycle working table of the present invention is operated, first, the actuator arm 30 is forced to pull the trigger portion 32 to the highest position (defined as (The first position of the present invention), the pivoting portion 31 can be swung, and when the pivoting portion 31 is swiveled, the first link 41 and the second link 42 are pulled together away from the base 10 At this time, the movable clip body 52 pivotally connected to the pivot portion 31 by the second pivot member 72 is also driven, and the movable clip body 52 is clockwise clockwise with the first pivot member 71 as the axis The direction swings open, and the clip portion 521 of the movable clip body 52 and the clip portion 511 of the fixed clip body 51 are relatively open.

Next, referring to FIG. 6 and FIG. 7, when performing the clamping operation, put the bicycle frame tube 200 into the clamping portion 511 of the fixed clamping body 51, and the trigger portion 32 of the actuating arm 30 Apply a clockwise force and press down to the lowest point (defined as the second position of the present invention), when the actuating arm 30 moves from the first position to the second position, the pivoting portion 31 follows the swing , And drives the clip portion 521 of the movable clip body 52 to pivot in a counterclockwise direction with the first pivot 71 as the axis, and collapses with the clip portion 511 of the fixed clip body 51 to clamp the bicycle frame tube 200, defining the connection between the third pivot member 73 and the five-axis pivot member 75 as a virtual straight line (marked as L in the figure). While the pivot portion 31 pivots, the first link 41 and When the second link 42 is driven, it also pivots counterclockwise toward the base 10, and drives the slide 23 away from the convex portion 13 to force the spring 22 to be compressed and compressed. Because the second link 42 is pivotally connected to the sliding seat 23, the sliding seat 23 is pushed back by the spring 22, so that the second link 42 is the fourth link 74 by the first link When 41 drives the pivot, the cam 423 will be close to rolling the shaft 21, at this time, the actuator arm 30 must be slightly applied, the fourth pivot 74 passes through the virtual straight line L from top to bottom and Located below the virtual straight line L, the cam 423 tightly abuts the upper circumferential surface of the shaft 21. In this way, the elastic force of the spring 22 acting on the sliding seat 23 will cause the clip portion 521 of the movable clip body 52 to be stably clamped on the clip portion 511 of the fixed clip body 51. In addition, since the fourth pivot member 74 is located below the virtual straight line L, the elastic force of the spring 22 pushing the sliding seat 23 will only keep the fourth pivot member 74 in this position and will not Moving upward, and the locking effect of the fourth pivot member 74 is formed.

To release, the user only needs to apply upward force on the trigger portion 32 of the actuating arm 30 to move it, the dynamics of the aforementioned components will be reversed, and the fourth pivot member 74 will be accompanied by The lower part of the virtual straight line L moves upward to be higher than the upper part of the virtual straight line L. Since the lever arm of the actuating arm 30 is larger, the applied force can easily overcome the spring 22 to add to the sliding seat 23 The pushing force of the second link 42 and the friction force of the cam 423 of the second link 42 rolling the shaft 21. When the actuating arm 30 moves to the highest position, the clip portion 521 of the movable clip body 52 is completely opened relative to the clip portion 511 of the fixed clip body 51, and the release operation is completed. Based on this, the jig 100 of the bicycle workbench of the present invention can indeed provide the effect of holding firmly. In addition, the purpose of the present invention is that the shaft 21 is a rectangular rod, which can have a larger contact area with the cam 423 and provide greater frictional resistance. This allows the user to have a cushioning resistance when operating the actuator 30 , It is less likely to have sudden large movements.

Under other conditions of use, for example, when the frame tube 300 of the bicycle has a larger diameter than the frame tube 200 described above, as shown in FIG. 8, when the clamp 100 of the bicycle worktable of the present invention is operated, as long as Put the frame tube 300 of the bicycle between the movable clamp body 52 and the clamp portion 511 of the fixed clamp body 51 in an open state, and then pull the trigger portion 32 of the actuating arm 30 in a clockwise direction, the The movable clamp body 52 pivots until its clamp portion 521 and the clamp portion 511 of the fixed clamp body 51 clamp the bicycle frame tube 300, and at this time, the first link 41 and the second link 42 pivot counterclockwise As the base 10 approaches, because the frame tube 300 of the bicycle has a larger diameter, the distance between the clamping portion 521 of the movable clamping body 52 and the clamping portion 511 of the fixed clamping body 51 becomes larger. In the process of pressing the trigger portion 32 of the actuating arm 30 downward, the slide 23 will also move away from the convex portion 13, and the fourth pivot member 74 still passes through the straight line L from top to bottom. Located below the straight line L, the cam 423 of the second link 42 still rolls the shaft 21 and tightly abuts the shaft 21, and based on the principle of the spring, the spring 22 acts on the sliding The elastic force of the seat 23 is the same as the elastic force acting on the sliding seat 23 when clamping the thinner frame tube 200, that is to say, the force of the spring 22 acting on the movable clamp body 52 is also the same as that of the clamp Holding the force of the thinner frame tube 200, so that the clamping assembly 50 holds the thicker frame tube 300 with the same force as the thinner frame tube 200, and has a stable Clamping effect.

It can be seen from the above that the movable clamp body 52 and the fixed clamp body 51 can firmly clamp the frame tubes 200 or 300 of bicycles with different diameters. The shortcomings of inconvenience also have the effect of stable clamping and clamping with a fixed force. In addition, the friction force provided by the cam 423 rolling against the shaft 21 can provide cushioning resistance during operation, and it is less likely to produce sudden large movements, thereby avoiding accidental injury to the user.

Furthermore, the clamp 100 of the bicycle workbench of the present invention can be connected to a support frame 90 with a tube 80 before use.

As shown in FIG. 3, the seat tube 80 has a connecting tube 81 and a coupling tube 82, the connecting tube 81 is connected to the support frame 90, and the support frame 90 has a two-legged rod 91 firmly supported on the ground, the coupling The tube 82 has a coupling hole 821 penetrating through its two ends (refer to FIG. 5 for matching). The coupling hole 821 has a convex stopper 822. The coupling hole 821 is divided into a large-diameter portion 823 and a small-diameter portion 824. The quick release assembly 83 is disposed at the small diameter portion 824 of the coupling hole 821. The quick release assembly 83 has a screw 831 that passes through the small diameter portion 824 and cooperates with a nut 832. The nut 832 and the screw 831 is screwed and blocked by the convex stopper 822, the connecting rod body 14 is disposed at the large diameter portion 823 of the coupling hole 821, the connecting rod body 14 can rotate relative to the seat tube 80, the connecting rod body 14 has a Screw hole 141, the screw 831 is locked to the screw hole 141, according to which, the base 10 can deflect relative to the seat tube 80, changing the clamped bicycle frame tube 200 or 300 relative to the bicycle workbench The angle of view is conducive to workers to repair various parts of the bicycle. In this way, the present invention does have an effect of adjusting the angle at which the bicycle is clamped on the bicycle work bench, which is different from the prior art, and provides an effect of facilitating maintenance of various parts of the bicycle.

100: Fixture for bicycle bench 10: Base 11: accommodating groove 12: first hole 13: convex stopper 14: connecting rod body 141: screw hole 20: elastic component 21: shaft 211: pressing block 212: bolt 22: spring 23: slide 231: bottom plate 232: side wall 233: concave space 30: actuator arm 31: pivoting portion 311: side piece 312: movable space 313: first hole 314: second hole 32: trigger portion 40: link assembly 41: first link 411: top plate 412: side wall 413: recessed space 414: first hole 415 second hole 42: second link 421: first hole 422: second hole 423: cam 50: clamping assembly 51: fixed clamping body 511: clamping part 52: movable clamping body 521: clamping part 522: first hole 523: second hole 71: first pivot 711: rod body 712: enlarged part 713: Groove 714: C-shaped clip 72: second pivot 73: third pivot 74 fourth pivot 75: fifth pivot 80: seat tube 81: connecting tube 82: coupling tube 821: coupling Hole 822: convex part 823: large diameter part 824: small diameter part 83: quick release assembly 831: screw 832: nut 90: support frame 91: foot rod 200, 300: bicycle frame tube

Figure 1 is a combined perspective view of a preferred embodiment of the present invention. Figure 2 is an exploded perspective view of a preferred embodiment of the present invention. FIG. 3 is a schematic view of a preferred embodiment of the invention for connecting a support frame. FIG. 4 is a schematic perspective view of a preferred embodiment of the present invention with the movable clip and the fixed clip in an open state. Figure 5 is a schematic cross-sectional view of Figure 4. FIG. 6 is a schematic perspective view of a preferred embodiment of the present invention where the movable clip and the fixed clip are in a sandwiched state. Figure 7 is a schematic cross-sectional view of Figure 6. Fig. 8 is a schematic cross-sectional view of a preferred embodiment of the present invention for clamping a bicycle frame tube of different diameters.

100: fixture for bicycle workbench

10: Dock

14: connecting rod body

20: Elastic components

30: Boom

50: clamping assembly

51: fixed clip

52: movable body

Claims (10)

A clamp for a bicycle workbench can be connected to a support frame for clamping a bicycle frame tube, which includes: a base with a receiving groove; an elastic component with a shaft, a spring and A sliding seat, the shaft is arranged in the accommodating groove, the shaft passes through the spring, the sliding seat is movably arranged on the shaft, one end of the spring is pressed against one end of the accommodating groove, the spring The other end pushes against the slide; an actuating arm with a pivoting portion at one end and a triggering portion at the other end, forcing the triggering portion to pivot the pivoting portion; a link assembly with A first link and a second link pivotally connected to each other, the first link is pivotally connected to the pivoting portion of the actuating arm, the second link is pivotally connected to the sliding seat, the second link Having a cam, when the first link is driven by the actuating arm, the second link is pivoted relative to the sliding seat, so that the cam is away from the shaft or close to rolling the shaft; a clamping assembly There is a fixed clip body and a movable clip body, the fixed clip body is arranged on the base, the movable clip body is pivotally connected to the base, and the movable clip body is pivotally connected with the pivoting portion of the actuating arm. According to the clamp of the bicycle worktable described in item 1 of the patent application scope, wherein: the two groove walls of the accommodating groove are provided with a first hole at the end close to the fixed clamp body, and a first hole is provided on the movable clamp body A hole, the first hole of the movable clip body and the first hole of the accommodating groove are used for a first pivot member to pass through the pivot connection, and the movable clip body pivots with the first pivot member as an axis. The clamp of the bicycle working platform according to item 2 of the patent application scope, wherein: the movable clamp body is provided with a second hole, the pivoting portion of the actuating arm has two side pieces and one of the two side pieces In the active space, the two side pieces are provided with a first hole and a second hole; the movable clip body is partially placed in the active space, the second hole of the movable clip body and the first The two holes allow a second pivot member to pass through the pivot joint, and the actuating arm drives the movable clip body with the second pivot member. The jig for a bicycle bench according to item 3 of the patent application scope, wherein: the first link of the link assembly has a top plate, two side walls on both sides of the top plate, and a recessed space on the two side walls Both are provided with a first hole and a second hole, one end of the first link is placed in the movable space of the actuator arm, the first hole of the first link and the pivotal portion of the actuator arm The first hole allows a third pivot member to pass through the pivot joint, and the third arm pivots the first link by the actuator arm. The jig for bicycle bench according to item 4 of the patent application scope, wherein: the second connecting rod is an elongated block, a first hole and a second hole are provided at the two ends, one end of the second connecting rod Placed in the concave space of the first link, the second hole of the second link and the second hole of the first link are for a fourth pivot member to pass through, the first A connecting rod drives the second connecting rod with the fourth pivot member. The jig for a bicycle workbench according to item 5 of the patent application scope, wherein: the sliding seat of the elastic component has a bottom plate, two side walls on both sides of the bottom plate, and an inwardly concave space opening upwards on the two side walls Both are provided with a first hole; the other end of the second connecting rod is accommodated in the recessed space, the first hole of the second connecting rod and the first hole of the slide seat for a fifth pivot member to pass through Pivoted. The clamp of the bicycle worktable according to item 6 of the patent application scope, wherein: the cam of the second link is located between the first hole and the second hole, the cam is provided on the bottom surface of the block in a convex arc shape The shaft of the elastic component is a rectangular rod, one end of the shaft is matched with a pressing block and two bolts to be pivotally fixed at one end of the accommodating groove, and the other end of the shaft passes through the concave space of the sliding seat , And set on a convex part in the accommodating groove, defining that the actuator arm is pulled up to the highest point as the first position, and the actuator arm is pressed down to the lowest point as the second position, defining the third pivot The connecting line between the member and the fifth pivot member is a virtual straight line. During the movement of the actuator arm from the first position to the second position, the fourth pivot member passes the virtual straight line from top to bottom and is located in the virtual Straight below. The clamp of the bicycle workbench according to item 1 of the patent application scope, wherein: the fixed clip body has a clip part, and the movable clip body also has a clip part, both the fixed clip body and the clip part of the movable clip body Set in a concave arc shape. The clamp of the bicycle workbench according to item 1 of the patent application scope, which further includes a tube with a connecting tube and a coupling tube, the connecting tube is connected to the support frame, and the support frame has a two-legged rod Stably supported on the ground, the coupling tube has a coupling hole penetrating through its two ends; the base is connected to a connecting rod body opposite to the other end connected to the fixed clip body, and the connecting rod body is disposed at the coupling hole One end can rotate relative to the seat tube, a quick release component is provided at the other end of the coupling hole, the connecting rod body is pivotally connected to the quick release component, and the quick release component fixes the base to swing relative to the seat tube status. According to the clamp of the bicycle worktable described in item 9 of the patent application scope, wherein: the coupling hole has a convex stopper, the coupling hole is divided into a large-diameter portion and a small-diameter portion, and the quick-release assembly has a screw, The screw passes through the small-diameter portion and cooperates with a nut, and the nut and the screw are screwed together and stopped at the convex stop portion, the connecting rod body has a screw hole, and the connecting rod body is provided at the large-diameter portion, The screw is tightly connected with the screw hole.

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