JP2000158248A - Disassembling/assembling device for suspension unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disassembling/assembling device easily and quickly operable, simple in structure, and being superior in general purpose of use. SOLUTION: A suspension unit provided with a damper 31 and a coil spring 32 is sandwiched between a first compression part constituted of a hydraulic jack supported on a base and a second compression part supported by guide shafts extended parallel to each other from the base. The second compression part is provided with a slide holder 20 guided by the guide shafts 3 and a nut- shaped positioning member 21 to be fixed around a screw part 12 in a appropriate position, a ring-shaped receiver metal 30 detachably provided in the central part of the slide holder 20 is stacked on a second spring sheet 40, the whole suspension unit is pushed up from the bottom by the first compression part, and one end of the coil spring 32 is separated from a second joint 36 via the second spring sheet 40 so that a damper 31 and the coil spring 32 can be disassembled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an apparatus for disassembling or assembling a motorcycle suspension unit having a damper and a coil spring.

[0002]

2. Description of the Related Art Such a device is known, and is disclosed in Japanese Utility Model Publication No. 5-40938. In this device, a hydraulic jack supported on a base supports one end of a suspension unit and pushes up the whole, and a hook supported movably on a guide shaft is engaged with a coil spring on the other end. By pressing down on this, the coil spring is compressed and the end of the coil spring is separated from the damper, so that the suspension unit can be disassembled and assembled in the reverse order.

[0003]

In the above-mentioned conventional apparatus, the coil spring is engaged with the hook from the side. Therefore, the amount of pushing up the suspension unit by the hydraulic jack and the amount of pushing down the hook are made sufficiently large. Otherwise, it cannot be disassembled, and the operation requires much labor. In addition, the mechanism of the hook part becomes complicated because it is necessary to move the hook toward and away from the coil spring, and if the diameter of the coil spring changes depending on the model, it will be applied unless the entire mechanism of the hook part is replaced. In some cases, this may not be possible, and there is a problem in versatility. Therefore, the present invention can be operated easily and quickly,
Another object of the present invention is to provide a suspension unit disassembly / assembly apparatus having a simple structure and high versatility.

[0004]

According to a first aspect of the present invention, there is provided an apparatus for disassembling and assembling a suspension unit including a damper and a coil spring. A disassembling and assembling apparatus for a suspension unit configured to compress the coil spring between a first and a second compression section, the distance between each other being variable, wherein the first compression section is provided at one end of the suspension unit. The second compression unit may compress the coil spring in contact with the other end of the coil spring by cooperating with the first compression unit. Features.

In a second aspect based on the first aspect, the second compressing portion includes a slide holder and a positioning member, and the slide holder is slidably guided by at least two parallel guide shafts and is provided with the coil. The positioning member abuts on the other end of the spring, receives the load of the slide holder, and is held on the guide shaft to position the slide holder so that the distance to the first compression portion can be adjusted. .

[0006]

According to the first aspect of the present invention, the first compression portion abuts one end of the suspension unit and the second compression portion abuts the other end of the coil spring. If the distance between the compression parts is reduced, the coil spring is easily and quickly compressed. In addition, since the second compression portion merely comes into contact with the other end of the coil spring, the structure can be simplified, and even if the coil spring diameter changes due to a model change, it can be relatively easily handled. It will also be versatile.

According to the second aspect, since the second compression section includes the slide holder and the positioning member, the slide holder is slidably guided to at least two parallel guide shafts, and one end of the coil spring. When the position of the slide holder is positioned by the positioning member held on the guide shaft so that the distance between the slide holder and the first compression unit is appropriate, the second compression unit is set to an appropriate position. And then the first compression section
It is only necessary to reduce the distance toward the second compression unit, so that the operation on the second compression unit is simplified.

[0008]

FIG. 1 is a view showing a use state (before coil spring compression) of a suspension unit disassembly / assembly apparatus according to the present embodiment, FIG. 2 is an overall front view of the suspension unit disassembly / assembly apparatus, and FIG. FIG. 4 is a plan view of the second compression unit, FIG. 4 is a bottom view of the base, FIG. 5 is a diagram showing a use state of the second compression unit, and FIG. FIG.

First, the structure of an apparatus for disassembling and assembling a suspension unit will be described with reference to FIGS. As is apparent from FIG. 2, the suspension unit disassembly / assembly apparatus includes a base 1, a first compression unit 2, a guide shaft 3, an upper frame 4, and a second compression unit 5.

As shown in FIG. 4, the base 1 is a substantially square member made of a suitable material such as metal, and has a flange 6 which is folded downward and a cross-shaped rib 7 on the bottom side. Are formed. Also. At each of the three corners, a mounting hole 8 is provided, into which a threaded lower end of the guide shaft 3 is inserted, and is fixed with a nut 9 from the back.

The guide shaft 3 has an appropriate cross-sectional shape such as a round bar shape, and is provided in parallel with each other. A total of three guide shafts 3 are fixed at the lower end to the base 1, and the upper end forms a threaded portion and is screwed to the upper frame 4 by a nut 11. Fixed. Upper frame 4 is each guide shaft 3
Is a member for holding the upper end portion at a constant interval, and the central portion is largely open.

A pair of guide shafts 3 located on a diagonal line form a threaded portion 12 on the substantially upper half side, and the other one of the guide shafts 3 is not provided with such a threaded portion. A fall prevention nut 13 is attached to a lower end of at least one of the screw portions 12 of the guide shaft 3 in which the screw portions 12 are formed.

The first compression section 2 is formed as a hydraulic jack, and has a cylinder 14 supported at the center of the base 1, a jack rod 15 which can move forward and backward with respect to the cylinder 14, and a receiver which is detachably attached to the tip of the cylinder. A section 16 is provided. Receiving part 1
Reference numeral 6 denotes a substantially cylindrical shape whose upper side is open.

By operating a jack lever 18 provided on the side of the cylinder 14, the first compression unit 2 moves the jack rod 15 relative to the cylinder 14, thereby moving the receiving unit 16 up and down. Can be moved.

The second compression section 5 comprises a slide holder 20 and a positioning member 21. The positioning member 21 is a nut-shaped member that is fastened to the screw portion 12 of the guide shaft 3. By adjusting the fastening position, the upward movement of the slide holder 20 is positioned at an arbitrary position. ing.

As is apparent from FIG. 3, the slide holder 20 is a substantially square member made of a suitable material such as metal, and the periphery thereof forms a flange 22 folded downward for reinforcement, and has a central portion. A large circular central opening 23 is formed in the portion, and through holes 24 (FIG. 2) are provided in each of the three corner portions, through which the guide shaft 3 penetrates.

Each through hole 24 is formed to have a size such that the guide shaft 3 is loosely fitted. As a result, the slide holder 20 is slidably guided and supported on the guide shaft 3. As shown in FIG. 5, which is a cross-section along the line 5-5 in FIG. 3, a resin drop prevention ring 25 fits only in the through hole 24 through which the guide shaft 3 in which the screw portion 12 is not formed passes. Have been combined.

Referring again to FIGS. 2 and 3, a ring-shaped exchange holder 26 is fitted into the central opening 23, and a flange 27 formed on the outer periphery of the lower end of the exchange holder 26 surrounds the central opening 23 of the slide holder 20. By overlapping from below, it does not escape upward. Further, a step portion 29 is formed at the lower end side of the inner peripheral surface by a large-diameter ring-shaped concave portion 28.

A ring-shaped receiving metal fitting 30 having a ring shape is fitted into the ring-shaped recess 28, and is prevented from moving upward by the step 29. However, since it can be pulled downward, it is detachable from the exchange holder 26.

Next, the suspension unit will be described with reference to FIGS. This suspension unit
The first joint 33 includes a damper 31 and a coil spring 32.
And a piston rod 35 which can be extended and contracted with respect to this. The first joint 33 has a substantially circular shape when viewed from the side in the state of FIGS. 1 and 6 (see FIG. 7).

The distal end of the piston rod 35 has a threaded portion, and a substantially U-shaped second joint 36 is fastened at the nut portion thereof, and is locked together with the nut portion by a lock nut 37 constituting a double nut. Have been. First
A first spring seat 38 is provided on the joint 33, and a second spring seat 4 is provided on the second joint 36 side.
0 is provided. Note that the second joint 36 is the first joint.
A structure having a circular portion similar to that of the joint 33 may be used.

The second spring seat 40 is provided with a central hole 41 larger than the lock nut 37 at the center, so that the second spring seat 40 can move on the piston rod 35 in the axial direction. It comes into contact with the two joints 36 and is prevented from falling off. In this state, the lock nut 37 has entered the central hole 41.

The outer peripheral portion of the second spring seat 40 is
It extends outward more than the joint 36 and comes into contact with the ring-shaped receiving fitting 30 from below. Conversely, a plurality of ring-shaped receiving members 30 having different inner diameters are prepared in advance, and those having a size overlapping with the second spring seat 40 are appropriately selected.

The coil spring 32 is of a well-known type having small winding diameters at upper and lower sides and an interval of unequal pitch so as to obtain a progressive characteristic, and is provided between the first spring seat 38 and the second spring seat 40. It is compressed and interposed. Reference numeral 39 in the drawing is a mounting hole provided in the first joint 33.

Next, the operation of this embodiment will be described. First, for disassembly, as shown in FIG. 1, the first joint 33 is housed in the receiving tool 16. At this time, since the receiving member 16 has a substantially cylindrical shape, it can be reliably supported without being particularly fixed to the receiving member 16. Further, the first joint 33 has a substantially circular outer peripheral portion, that is, a circular portion, and this portion comes into contact with the bottom of the receiving member 16 in a substantially point contact manner, so that even if the damper 31 is slightly inclined, it can be supported without any problem. .

On the other hand, on the second joint portion 36 side, the second joint portion 36 is projected upward from the hole of the exchange holder 26, and the ring-shaped receiving member 30 of the slide holder 20 is overlapped with the second spring seat 40. The position is adjusted, and the upper movement limit is positioned by the positioning member 21. The exchange holder 26 and the ring-shaped receiving metal 3
In the case of "0", a value suitable for the size of the second spring seat 40 is selected in advance.

Subsequently, the jack rod 18 is operated to extend the jack rod 15 upward, and the entire suspension unit is pushed upward. Then, as shown in FIG. 6, since the damper 31 is not compressed, the second joint 36 protrudes upward from the slide holder 20, but the coil spring 32 whose upper end is fixed to the slide holder 20 is compressed, and the upper end is Second spring seat 40
Together with the second joint 36.

Then, the lock nut 37 is loosened, and then the second joint 36 is removed from the piston rod 35 by rotating it around the axis of the piston rod 35, and the jack lever 18 is operated again to lower the entire suspension unit downward. Then, if it is removed from the disassembly and assembly device, the damper 31 and the coil spring 32 can be separated. The assembly can be performed in the reverse order.

As described above, since the coil spring 32 is compressed by being pushed by the first and second compression parts 2 and 5 from both ends in the longitudinal direction, the coil spring 32 can be compressed easily and quickly. The suspension unit can be disassembled or assembled. In addition, since one end of the coil spring 32 can be fixed by the slide holder 20 and the positioning member 21, the structure for this can be simplified.

Further, even if the diameter of the coil spring 32 changes due to a change in the model, only the ring-shaped receiving bracket 30 is selected and changed so as to fit the second spring seat 40, so that it can be handled relatively easily. it can. Moreover, even if the length of the suspension unit changes, it can be easily coped with by adjusting the fastening positions of the positioning member 21 and the fall prevention nut 13.

Therefore, since it is possible to freely respond to changes in the diameter of the coil spring 32 and the length of the suspension unit, the versatility is extremely high. In addition, since the replacement holder 26, the ring-shaped receiving member 30, and the receiving portion 16 which are relatively simple in structure and can be manufactured at a low cost are detachably configured, even if the shape and dimensions of the suspension unit are changed, these are optimal. Since this can be dealt with by exchanging one, the versatility also increases in this respect.

When the slide holder 20 is moved on the guide shaft 3, since the guide shaft 3 only penetrates the through hole 24, the guide can be guided by the guide shaft 3 and quickly moved to a predetermined position. it can. In addition, since the slide holder 20 and the positioning member 21 are formed as separate members as the second compression section 5, the operation is also easy and quick in this regard.

In addition, the fall prevention nut 13 prevents the fall at the lower limit position, and the lower limit position can be arbitrarily determined by the fastening position of the fall prevention nut 13. Therefore,
Even if the length of the suspension unit changes, it can be easily coped with by adjusting the fastening positions of the positioning member 21 and the fall prevention nut 13.

Further, as shown in FIG. 5, since the fall prevention ring 25 is provided in the through hole 24 through which the guide shaft 3 in which the screw portion 12 is not formed is formed, when the slide holder 20 is inclined to drop, the fall prevention ring 25 is provided. Abuts against the guide shaft 3 to prevent the falling. Furthermore, the guide shaft 3 can be prevented from being damaged by making the fall prevention ring 25 made of resin.

FIG. 7 shows another embodiment of the receiving member. In this receiving member 50, a portion for accommodating the first joint 33 is constituted by a V-block 51, and the periphery of the first joint 33 is surrounded by a peripheral wall 52. Has become. In this embodiment, parts other than the receiving member 16 are common to the previous embodiment, and the common parts are indicated by using common symbols.

In this manner, the first joint 33 can be positioned only by placing the circular portion of the first joint 33 on the V-block 51. When the positioning is necessary, the first joint 33 is attached to the receiving member 50 by bolts or the like. The trouble of fixing the 33 is also unnecessary.

The present invention is not limited to the above embodiment, but can be variously modified. For example, the suspension unit which can be used may be of various known structures. The present invention can also be applied to a device without the spring seat 40. In this case, a part of the slide holder 20 may be brought into direct contact with one end of the coil spring 32.

Even when the second spring seat 40 is provided, if the second spring seat 40 has a groove cut from the outer peripheral portion to the central portion instead of the central hole 41, the second joint 36 is removed. Without coil spring 3
The second spring seat 40 can be immediately removed at the stage when the second spring 2 is compressed.

Further, one or both of the exchange holder 26 and the ring-shaped receiving member 30 can be omitted. In addition, the positioning member 21 is connected to the slide holder 2.
It is also possible to integrate them without separating them from 0.

[Brief description of the drawings]

FIG. 1 is a diagram showing a use state (before a coil spring is compressed) of an embodiment apparatus.

FIG. 2 is an overall front view of a disassembly / assembly apparatus for a suspension unit.

FIG. 3 is a plan view of a second compression unit.

FIG. 4 is a bottom view of the base.

FIG. 5 is a diagram showing a state of use in a second compression unit.

FIG. 6 is a diagram showing a use state of the embodiment device (when the coil spring is compressed).

FIG. 7 is a view showing another embodiment of the receiving device.

[Explanation of symbols]

1: base, 2: first compression part, 3: guide shaft,
5: 2nd compression part, 12: screw part, 16: receiver, 2
0: slide holder, 21: positioning member, 26: replacement holder, 30: ring-shaped bracket, 31: damper, 3
2: coil spring, 33: first joint, 34:
Cylinder, 35: piston rod, 36: second joint, 37: lock nut, 40: second spring seat, 50: receiver

Claims (2)

[Claims] An apparatus for disassembling and assembling a suspension unit having a damper and a coil spring, wherein the coil spring is compressed between a first and a second compression section, the distance of which is variable. In the configured suspension unit disassembly and assembly apparatus, the first compression unit can abut on one end of the suspension unit to compress the coil spring, and the second compression unit can be connected to the other end of the coil spring. Wherein the coil spring is compressed in cooperation with the first compression portion by contacting the coil spring. 2. The second compression section includes a slide holder and a positioning member. The slide holder is slidably guided by at least two parallel guide shafts, and abuts on the other end of the coil spring. 2. The suspension unit according to claim 1, wherein the positioning member receives the load of the slide holder and is held on a guide shaft to position the slide holder so as to adjust a distance from the first compression unit. 3. Disassembly equipment.