JPS632267Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a coil spring assembling device used when assembling a coil spring to a shock absorber used in an automobile suspension system.

As shown in FIG. 7, a front suspension for an automobile includes a front shock absorber (hereinafter referred to as absorber) 110 and a front coil spring (hereinafter referred to as coil spring) 111 integrally assembled. In order to assemble the coil spring 111 to the absorber 110, it is necessary to compress the coil spring 111, so an assembling device having a compression function is used. In conventional assembly equipment,
As shown in FIG. 8, the forward action of the pawl arm a to compress the coil spring 111 is performed by a cam plate b.
If the type of 1 changes, several types of this tracing cam plate b are set and used by changing it according to each coil spring. For this reason, it is necessary to manufacture the number of profiling cam plates b according to the type of coil spring to be assembled, and they are arranged on the rear side of the device. For this reason, the device has disadvantages in that it has a large number of components, takes time to manufacture, and is troublesome to handle and maintain. The drive system for moving the claw arm a upward and downward is a motor with a brake c and an electromagnetic clutch d located at the rear of the device, and power is transmitted to a female screw e located at the front of the device via a timing belt f. was transmitted, and the feed screw rod g was moved up and down to move the pawl arm a and the like up and down. For this reason,
The device had the drawbacks of being complex in structure and expensive.

In view of the above, this invention has one type of profiling cam that is selected when the type of coil spring changes, and this profiling cam is placed on the front side of the device, thereby reducing the number of profiling cams and creating a new one. It eliminates the need to manufacture a copying cam, makes handling and maintenance of the copying cam easier, and makes the overall device more compact by changing the position of the drive motor, and eliminates electromagnetic clutches, etc. in the drive system. The object of the present invention is to provide a coil spring assembly device with a simplified structure.

Next, this invention will be explained based on embodiments shown in the drawings.

In the figure, a base 1 of a coil spring assembling device has a column 2 having an I-shaped cross section fixed to the rear thereof. Further, the base 1 has a pedestal 3 attached to its front upper surface for supporting the shock absorber 110. A support plate 4 is attached substantially horizontally to the front surface of the lower part of the column 2. The support plate 4 is
As shown in FIG. 3, a guide hole 4a is provided close to the support column 2 and approximately at the center in the left-right direction, through which a guide shaft 31 (described later) is inserted. On the upper surface of the support plate 4, a left clamp arm 5 and a right clamp arm 6 are supported by support shafts 7 and 8, respectively, symmetrically with respect to the center of the guide hole 4a and at a predetermined interval. Both clamp arms 5 and 6 can swing horizontally about support shafts 7 and 8, respectively. The left clamp arm 5 has its front part (left side in FIG. 3) opened laterally, and then extends forward in parallel with the rear part.
The left clamp arm 5 has an expanded portion 5a.
A clamp claw 9 is pivotally mounted on the pin 10. The clamp claw 9 has a central part on its inner surface 9a,
A shallow arcuate vertical groove 9b is provided in the vertical direction. Further, a bolt 11 is inserted into the inner surface 9a of the clamp claw 9 opposite to the pin 10 in a sunken shape, and this bolt 11 is screwed into the front end of the left clamp arm 5. A compression spring 12 is fitted on the outside of the bolt 11 between the clamp claw 9 and the front end of the left clamp arm 5, and the tension of the compression spring 12 caused by tightening the bolt 11 to the left clamp arm 5 is Due to the force, the clamp claw 9 is constantly receiving a force that causes it to rotate clockwise about the pin 10 as a fulcrum. Right clamp arm 6
has an expanded portion 6a like the left clamp arm 5, and the clamp claw 13 is attached to the pin 14 in this expanded portion 6a.
It is pivoted by. The clamp claw 13 has a shallow arcuate longitudinal groove 13b on its inner surface 13a, and faces the groove 9b of the clamp claw 9. The clamp claw 13 is also constantly pressed by the biasing force of the compression spring 16 fitted on the outside of the bolt 15 that attaches the clamp claw 13 to the outer end of the right clamp arm 6, and rotates counterclockwise about the pin 14. There is a force trying to move me. Both clamp arms 5
and 6, a compression spring 17 is attached to the front of the support shafts 7 and 8 for pushing open the front of both clamp arms 5 and 6 and separating the distance between the clamp claw 9 and the clamp claw 13.

The rear end of the upper support member 18 having a U-shaped cross section is fixed to the front surface of the upper end of the support column 2, and the upper end of the upper support member 18 and the upper end of the support column 2 are approximately at the same height. The upper support member 18 has its bottom plate 1
A gear mechanism 19 is attached to the lower surface of 8a. As schematically shown in FIG. 4, this gear mechanism 19 is provided with a worm wheel 20 that is rotatable. This worm wheel 20 has a screw shaft 21 screwed into a threaded portion 20a provided at its axial center, and when the worm wheel 20 rotates, the screw shaft 21 moves upward or downward. A worm 22 that meshes with a worm wheel 20 is provided inside the gear mechanism 19, and a V-pulley 24 is attached to the end of a shaft 23 of the worm 22. A reversible motor 25 is attached to the rear upper part of the column 2, and a V pulley 27 attached to the shaft 26 of the reversible motor 25 and a V pulley 24 attached to the worm shaft 23 are connected to each other. A belt 28 is attached. A rectangular plate-shaped compression base 29 is attached to the lower end of the screw shaft 21 by a mounting bracket 30. A guide shaft 31 is vertically attached to the rear portion of the compression unit base 29. This guide shaft 31 is the pillar 2
It is supported by an upper guide metal 32 and a lower guide metal 33 attached to the upper and lower front surfaces of the . When the compression part base 29 moves upward or downward, the guide shaft 31 moves together with the compression part base 29 and moves the compression part base 29 upward or downward.
It is designed to guide the movements of 9. When the guide shaft 31 descends, it pushes open the left and right clamp arms 5 and 6 at the rear of their support shafts 7 and 8, and acts to close the left and right clamp arms 5 and 6.

Next, to explain the clamping mechanism of the coil spring 111, left and right claw arms 34 and 35 are attached to the bottom surface of the compression part base 29 at the base 3.
The rear ends of 4a and 35a are connected to support pins 36 and 37.
They are each pivoted by. Left claw arm 34
As shown in FIG. 5, the base 34a has a rectangular plate shape, and the tip of the base 34a forms an arcuate claw attachment portion 34b. A presser claw 38 having a hook portion 38a projecting downward is attached to both ends of the inner arc side of the claw attachment portion 34b. The left claw arm 34 has roller supports 39, 39 attached to the outer arcuate side of the claw attachment portion 34b, and a roller 41 is rotatably supported by a roller shaft 40 attached to both roller supports 39, 39. There is. The roller shaft 40 of the roller 41 is substantially parallel to the base 34a of the left claw arm 34. The base 35a of the right claw arm 35 has the same shape as the base 34a of the left claw arm 34, and the claw attachment part 35b of the right claw arm 35 also has an arc shape like the claw attachment part 34b of the left claw arm 34. However, its direction is opposite to that of the claw attachment portion 34b. The right claw arm 35 has a presser claw 42 attached to the center inside the claw attachment portion 35b, and this presser claw 42 also has a hook portion 4 having the same shape as the presser claw 38.
There is 2a. The link mechanism 43 includes a central link 44,
It consists of a left link 45 and a right link 46,
The left link 45 and the right link 46 have the same shape. The center link 44 has its center portion pivotally connected to the center portion of the compression portion base 29 in the left-right direction by a pin 47. The left link 45 has one end pivotally attached to the lower surface of the base 34a of the left claw arm 34 by a pin 48, and the other end pivotally attached to the lower surface of the front end of the center link 44 by a pin 49. The right link 46 has one end pivotally attached to the lower surface of the base 35a of the right claw arm 35 by a pin 50, and the other end pivotally attached to the lower surface of the rear end of the center link 44 by a pin 51. Left claw arm 34 and right claw arm 3
5, the respective base portions 34a and 35a are connected by a tension spring 52 at the rear of the support pins 36 and 37. Due to the action of the tension spring 52, the left claw arm 34 receives a force that rotates its claw mounting portion 34b counterclockwise using the support pin 36 as a fulcrum, and the right claw arm 34
5 is a claw attachment portion 35 using the support pin 37 as a fulcrum.
b receives a force that rotates it clockwise.

As above, left and right claw arms 34 and 35
The claw mounting portions 34b and 35b are rotated in the direction of opening each other by the action of the tension spring 52, but this opening is caused by the profiling cam plate 53 which will be described later.
is the roller 41 of the claw attachment part 34b of the left claw arm 34.
It is regulated by coming into contact with. Then, when the cam plate 53 pushes the roller 41 in the direction of arrow A in FIG. 5 and rotates the pawl attachment portion 34b in the closing direction, the left link 45 of the link mechanism 43 is pushed in the same direction. As a result, the center link 44 rotates clockwise about the pin 47, and the right link 46
is moved in the opposite direction and parallel to the left link 45. Therefore, the right claw arm 35 rotates counterclockwise (closing direction) about the support pin 37 as a fulcrum.

A support plate 54 is attached to the left side (right side in FIG. 1) of the upper part of the support column 2, and a moving member 55 is attached to the front of the support plate 54.
A support guide 56 that supports the vertically movably
is attached. A cam plate mounting member 57 has its upper end pivotally attached to the lower end of the moving member 55 by a connecting pin 58.
A cam plate 53 is attached to 7 so that its attachment position can be moved slightly in the vertical direction. Cam plate 53
has a cam surface that comes into contact with the roller 41 of the left claw arm 34, and the cam surface extends from the top to the upper cam surface 5.
3a, an inclined cam surface 53b, and a lower cam surface 53c. The upper end of the moving member 55 is connected by a pin 61 to one end of a transverse member 60 which is pivotally connected to the support plate 54 by a pin 59. A selection lever 62 is connected to the other end of the horizontal member 60 by a pin 63. Support plate 5
4 is an arc-shaped positioning plate 64 on the outside of the pin 59.
is attached to the positioning plate 64, and an appropriate number of U-shaped fixtures 65 for determining the position of the selection lever 62 are attached to the positioning plate 64. When the selection lever 62 is stopped by the fixture 65 at the lower end (the state shown in FIG. 1), the horizontal member 60 and the selection lever 62 are approximately horizontal. This selection lever 62 is connected to the support plate 54 with the pin 63 as a fulcrum.
When rotated in a direction perpendicular to , the engagement with the fixture 65 is disengaged. In this state, when the selection lever 62 is rotated counterclockwise in FIG. 1 using the pin 59 as a fulcrum and is stopped by the upper fixture 65, the pin 61 side of the horizontal member 60 is lowered to push down the movable member 55. That is, by operating the selection lever 62, the moving member 55 can be moved up and down, and therefore the cam plate 53 attached to the lower end of the moving member 55 can be moved up and down. The presser lever 66 is pivotally attached to the lower front surface of the support plate 54 by a support pin 67, and a roller 68 is attached to a pin 69 at the end of the presser lever 66 on the cam plate 53 side.
It is pivoted by. The other end of the presser lever 66 protrudes to the outside of the side surface 54a of the support plate 54. One end of a support spring 70 is attached to this presser lever 66 between a roller 68 and a support pin 67, and the other end of the support spring 70 is attached to a pin 71 provided protruding from the lower end of the support plate 54. ing. As mentioned above, the support pin 67
The presser lever 66, which is pivoted to the support plate 54 and supported by a pin 71 attached to the support plate 54 via a support spring 70, is substantially horizontal as shown in FIG. Cam plate 5
3, one end of a tension spring 72 is attached to a pin 73 provided below the connection pin 58, and the other end of the tension spring 72 is attached to a pin implanted in the support plate 54 at approximately the same height as the connection pin 58. It is attached to 74. Therefore, the cam plate 54 is constantly receiving a force to rotate in the direction of the presser lever 66 using the connecting pin 58 as a fulcrum by the action of the tension spring 72, and the surface of the cam plate 53 opposite to the upper cam surface 53a is attached to the presser lever. 66 and is brought into pressure contact with a roller 68.

As described above, the roller 6 of the presser lever 66
The cam plate 53 supported by the cam plate 8 has an upper cam surface 53a and a lower cam surface 53c that are substantially vertical. An angled support member 75 is fixed to the lower surface of the compression unit base 29 in a state that projects toward the presser lever 66 at the rear of the cam plate 53.
This support member 75 is substantially parallel to the presser lever 66. The protruding end of the support member 75 protrudes to the side of the left end surface 54a of the support plate 54 in the same manner as the presser lever 66, and an operating rod 76 is fixed to the protruding end in the vertical direction. The operating rod 76 has an upper projection 7 formed at its upper and lower ends by bending approximately 90 degrees toward the presser lever 66.
6a and a lower protrusion 76b. The upper protrusion 76a and the lower protrusion 76b are connected to the compression part base 2.
When the lever 9 moves upward or downward, it comes into contact with the presser lever 66 at an outer side of the support pin 67 (on the opposite side from the roller 68).

Next, the upper seat 112 and upper support 114, which are the attachment parts of the coil spring, are
A clamp device such as the following will be explained. In FIG. 6, a pair of left and right clamp support members 77 and 78 are attached to the upper surface of the compression unit base 29 behind the screw shaft 21, and both clamp support members 77 and 78 are mounted at a predetermined height. have. A left clamp arm 79 is attached to the upper part of the clamp support member 77 so as to be rotatable in the horizontal direction by a support shaft 81. Also, the clamp support member 78
A right clamp arm 80 is attached to the upper part of the clamp arm 80 so as to be rotatable in the horizontal direction by a support shaft 82. The left clamp arm 79 has a protrusion 79a that protrudes forward from the front end of the compression unit base 29, and this protrusion 79a has a claw part 83 made of synthetic resin that has an arcuate clamping surface 83a on the right clamp arm 80 side.
is fixed. The right clamp arm 80 also has a protruding part 80a like the left clamp arm 79, and this protruding part 80a has a synthetic resin claw part 84 having an arcuate clamping surface 84a. It is attached in a state where it is opposed to the clamp surface 83a of 83. One end of a connecting bar 85 is pivotally attached to the lower surface of the end of the left clamp arm 79 extending rearward from the support shaft 81 by a pin 86, and the other end of this connecting bar 85 is connected to the support shaft 82.
Further forward, it is pivotally connected to the lower surface of the right clamp arm 80 by a pin 87. Compression unit base 2
9, a clamp lever support member 88 is attached to the upper surface of the right clamp arm 80 on the side (left side in FIG. 6). A support portion 88a further protrudes laterally from the clamp lever support member 88.
A clamp lever 89 having a receiving plate 89a is pivotally mounted on the pin 90. The arm 91 is attached as a pair to the clamp lever 89,
A rod 92 attached to this arm 91 is connected to one end of a connecting rod 93 by a pin 94. Further, the other end of this connecting rod 93 is connected to the right lever 8 by a pin 95 in front of the pin 89.
1.

This clamp device moves the clamp lever 89 to the sixth position.
In the figure, when the right clamp arm 80 is rotated in the direction of arrow G about the pin 90 as a fulcrum, the right clamp arm 80 is pushed toward the left clamp arm 79 via the arm 91, the rod 92, and the connecting rod 93. Therefore, the right clamp arm 80 rotates counterclockwise about the support shaft 82 as a fulcrum. Furthermore, as the right clamp arm 80 rotates counterclockwise, the left clamp arm 79, which is connected to the right clamp arm 80 via the connecting bar 85, rotates clockwise about the support shaft 81. That is, by rotating the clamp lever 89 in the G direction, the left and right clamp arms 79 and 80 are closed and the upper sheet 112 is clamped. This prevents the rod of the absorber 110 from rotating when the screws are fastened. Then, when the clamp lever 89 is rotated in the direction of arrow H, the clamps of both clamp arms 79 and 80 are released.

A release member 96 for rotating the clamp lever 89 in the release direction is attached to the upper support member 18 on the side opposite to the support plate 54 (see FIG. 1). The release member 96 has a release part 96a at the farthest position from the support column 2, and this release part 96
A is vertical. The release member 96 is the release part 9
A contact portion 96b where the lower part of 6a is inclined in the direction of the support column 2
It is becoming. Further, a starting button 97 for starting the reversible motor 25 is attached to the releasing portion 96a of the releasing member 96.

In FIG. 2, a starting switch 98 attached to the upper part of the pedestal 3 is a starting switch for the reversible motor 25. As shown in FIG. Three switches for stopping the reversible motor 25 are attached to the sides of the column 2. The upper switch 99 is actuated by a dog 102 attached to the compression base 29 when the compression base 29 reaches the upper end, and the lower switch 100 is activated when the compression base 29 reaches the upper end.
is actuated by dog 102 when it reaches its lower end. The intermediate switch 101 is actuated by the dog 102 when the left clamp arm 5 and the right clamp arm 6 clamp the shock absorber 110.

Next, the operation of this embodiment will be explained.

When the absorber 110 is set on the pedestal 3 at the front of the device, the absorber 110 hits the start switch 98, so a start command is given to the reversible motor 25, and the reversible motor 25 starts. When the reversible motor 25 starts and rotates forward, the V pulley 24 and worm 22 of the gear mechanism 19 are connected via the V belt 28.
rotates, and the worm wheel 20 is rotated at a reduced speed by the worm 22. The threaded portion 2 integrated with the worm wheel 20 is rotated by the rotation of the worm wheel 20 due to the forward rotation of the reversible motor 25.
0a pushes down the screw shaft 21, so the compression part base 29 attached to the lower end of the screw shaft 21 descends, and the compression part base 2
The guide shaft 31 attached to 9 also descends. The descending guide shaft 31 pushes open the rear parts of the left and right clamp arms 5 and 6 (the third
(See figure) The absorber 110 is clamped by the clamp claws 9 and 13. Absorber 110 is on the left
When clamped by the right clamp arms 5 and 6, the dog 102 that has descended together with the compression section base 29 hits the intermediate switch 101, so that the reversible motor 25 stops rotating.

Next, the operator manually sets the coil spring 111 on the absorber 110 and positions the cam plate 53 according to the type of coil spring 111. In other words, the selection lever 6
2 as described above and one fixture 65
, rotate the support pin 59 as a fulcrum,
The cam plate 5 does not move the moving member 55 in the vertical direction.
3, and lock the selection lever 62 to the fixture 65 at this position.

After the positioning of the profiling cam plate 53 is completed, when the start button 97 is pressed, the reversible motor 25 rotates normally again and the compression unit base 29 is lowered. As the compression part base 29 descends, both the left and right claw arms 34 and 35, which are supported by support pins 36 and 37 attached to the compression part base 29, descend. As the claw arm 34 descends,
The roller 41 attached to the claw arm 34 descends along the upper cam surface 53a of the profiling cam plate 53, and then descends along the inclined cam surface 53b. When the roller 41 descends along the inclined cam surface 53b,
The roller 41 is connected to the claw arm 3 by the inclined cam surface 53b.
4 are sequentially pushed in the closing direction, both claw arms 34 and 35 are sequentially closed against the tensile force of the tension spring 52. Then, when the roller 41 moves from the inclined cam surface 53b to the lower cam surface 53c, the left claw arm 34 and the right claw arm 35 close, and both presser claws 38, 38 of the left claw arm 34 and the right claw arm 35 close.
The presser claw 42 is caught on the coil spring 111. As the compression unit base 29 continues to descend, the coil spring 111 applies a suspension compression force to the left and right claw arms 34 and 35. When the compression part base 29 reaches near its lowering end while compressing the coil spring 111, the operating rod 76 attached to the compression part base 29 by the support member 75
presses down the presser lever 66 with its upper projection 76a, and the dog 102 hits the switch 100, stopping the rotation of the reversible motor 25.
Therefore, the presser lever 66 is rotated clockwise (see FIG. 4) about the support pin 67 as a fulcrum against the biasing force of the support spring 70, and the roller 68
The movement moves away from the cam plate 53. Presser foot lever 66
At the same time that the roller 68 leaves the profiling cam plate 53, the profiling cam plate 53 is pulled up by the tensile force of the tension spring 72. Therefore, the tracing cam plate 53 is rotated in the opposite direction to the presser lever 66 with respect to the moving member 55 using the connecting pin 58 as a fulcrum, so that the pressing force of the tracing cam plate 53 that was pushing the left claw arm 34 is eliminated. On the other hand, since the left and right claw arms 34 and 35 apply compressive force to the coil spring 111, both claw arms 34 and 35 are in a state of being locked to the coil spring 111.

Next, the operator manually places the upper sheet 112, seal dust 113, upper support 114, etc. on the top of the shock absorber 110 in order, and then moves the clamp lever 89 in the direction of arrow G in FIG.・The upper seat 11 is secured by the right clamp arms 79 and 80.
Clamp 2. Then, use a tightening tool to tighten the nut 115 onto the upper end threaded portion 11 of the absorber 110.
Tighten to 0a until the specified torque is reached.

As mentioned above, when the coil spring 111 is tightened, a switch (not shown) provided on the tightening tool sends a tightening completion signal to the reversible motor 2.
5, the reversible motor 25 rotates in reverse. As a result, the worm 22 and the worm wheel 20
is rotated in the opposite direction to the previous direction, the screw shaft 21 is raised, and the compression part base 29 attached to the lower end of the screw shaft 21 is raised. As the compression unit base 29 rises, the left and right claw arms 34
and 35 also rise, but at the time of this rise, the left claw arm 34 follows and the cam plate 53 is rotating, so it is not subject to this restriction. And left/right claw arm 3
4, 35 rises, the coil spring 11
1 expands as the compression force is sequentially released. On the other hand, as the compression part base 29 starts to rise, the receiving plate 89a of the clamp lever 89 comes into contact with the contact part 96b of the release member 96. And compression part base 2
9 rises, the receiving plate 89a rises along the contact portion 96b, and the receiving plate 89a is pushed open in the direction of arrow H in FIG.
The clamping of the upper sheet 112 and the like by the left and right clamp arms 79 and 80 is released.
When the receiving plate 89a of the clamp lever 89 reaches the release portion 96a of the release member 96, the clamp lever 89 becomes the most open state, and the left and right clamp arms 79 and 80 become the most open state.

When the compression part base 29 reaches the vicinity of the rising end, the left claw arm 34 and the right claw arm 35 have their respective presser claws 38, 38 and 42 pressed against the coil spring 11.
1, the left claw arm 34 and right claw arm 35 are opened by the biasing force of the tension spring 52 and rotated to the outside of the coil spring 111. or,
At this time, the guide shaft 31 has moved above the left and right clamp arms 6 and 7, and both crank arms 6 and 7 are opened by the biasing force of the compression spring 17, so the force that was clamping the absorber 110 is removed. is released and the absorber 110 is moved to the pedestal 3.
removed from.

When the compression part base 29 almost reaches the rising end, the operating rod 76 attached to the compression part base 29 via the support member 75 pulls up the presser lever 66 by means of a lower projection 76b at its lower end.
As a result, the presser lever 66 is rotated counterclockwise in FIG. 4 using the support pin 67 as a fulcrum and returned to its original position, and the roller 68 at its tip pushes the cam plate 54 to return it to its original position. At the same time, dog 102 strikes upper switch 99, causing reversible motor 25 to stop its operation, completing one cycle of operation of the device.

As mentioned above, this invention is applied to a device for assembling a coil spring to a shock absorber for an automobile.This device is a gear that is movably supported in the vertical direction by a column installed in this device and is driven by a motor. A screw shaft that is moved vertically by a mechanism, a pair of claw arms for compressing a coil spring are pivotally attached to the lower surface so as to be openable and closable, a compression part base attached to the lower end of the screw shaft, and this compression part base. A tracing cam plate which is supported movably in the vertical direction by a column on the side of the frame and which contacts the side of one claw arm to open and close the pair of claw arms; The following effects are achieved by providing means for changing the abutment position between the cam plate and the pawl arm without moving, and changing the position at which compression of the coil spring by the pawl arm starts.

(1) Coil springs in vehicle suspensions determine vehicle height and ride comfort, so they come in various sizes depending on the vehicle model, and sizes are constantly being changed. By moving downward, these changes can be accommodated in a very short time.

(2) By providing the profiling cam plate and its positioning means on the front of the device, it is possible to facilitate its handling and improve maintainability.

(3) Since the mechanism that drives the device is placed at the top of the device, the entire device can be made smaller and the work space can be expanded.

[Brief explanation of drawings]

Figures 1 to 6 show an embodiment of this invention,
FIG. 1 is a front view of the coil spring assembly device, FIG. 2 is a side view of FIG. The figure is a perspective view of the drive system based on the compression unit and the cam plate, and Figure 5 is a plan view of the claw arm.
Fig. 6 is a plan view of the locking clamp part of the coil spring attachment part, Fig. 7 is an exploded perspective view of a front shock absorber for a vehicle, and Fig. 8 is a side view of a conventional coil spring assembly device. be. 2... Support column, 19... Gear mechanism, 21... Screw shaft (shaft), 25... Reversible motor, 2
9...Compression part base, 34...Left claw arm, 35
...Right claw arm, 53...Trailing cam plate, 55...
...Moving member, 60...Horizontal member, 62...Selection lever, 64...Positioning plate, 66...Press lever,
110...Front shock absorber, 111
...Front coil spring.

Claims (1)

[Scope of Claim for Utility Model Registration] A coil spring assembly device for attaching a coil spring to a shock absorber of a vehicle suspension system, comprising a vertical column attached to a base and a substantially horizontal column attached to the lower front surface of the column. a pair of left and right clamp arms pivotally attached to the surface of the support plate and clamping the shock absorber set on the base; an upper support member attached to the front surface of the upper end of the column; and the upper support member. a screw shaft supported parallel to the support column and movable in the axial direction; a drive device for moving the screw shaft in the axial direction; a compression part base attached to the lower end of the screw shaft; and the compression part base. a guide shaft that is attached to the compression section base and opens and closes the clamp arm by moving along the support column; and a coil spring that is pivotally connected to the compression part base so that it can be opened and closed in conjunction with the left and right directions and set in the shock absorber. a pair of left and right claw arms that engage with the upper end in a closed state; and a pair of left and right claw arms that are supported by the column on the sides of the compression part base so that their positions can be adjusted in the vertical direction, and that move in the vertical direction together with the compression part base. A coil spring assembling device comprising: a profiling cam plate that opens and closes the pair of claw arms by coming into contact with one of the claw arms of the coil spring.