JPH0829642B2 - Lateral shake detection device of rim in spoke wheel misalignment detection and correction device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a lateral shake detection device for a rim in a device for detecting and correcting a misalignment of spoke wheels which is mainly used as a wheel of a two-wheeled vehicle such as a bicycle. is there.

(Prior Art) A spoke wheel usually has a hub shaft, a hub rotatably fitted to the hub shaft, a rim to which a tire is attached, and a large number of spokes connecting the rim and the hub. The length and tension of the large number of spokes can be adjusted by a nipple provided at the joint with the rim.

Therefore, when assembling the spoke wheel, the center plane of the rim must be correctly aligned with the reference plane orthogonal to the hub axis, and the radius of each part of the rim centered on the hub axis must be the same.

The present invention relates to a lateral shake detection device for a rim of a device that detects and corrects a misalignment at the time of assembling such a spoke wheel, and a conventional device of this type is disclosed in, for example, Japanese Patent Laid-Open No. 53-89102. There was something that was done.

However, since this conventional device detects the displacement of the hub axle of the spoke wheels while rotating the spoke wheels while holding the rim in a fixed position with respect to the frame of the device, the detection accuracy of the lateral shake of the rim is low. Moreover, there is a problem that the structure of the lateral shake detection device is complicated and large in size.

(Object of the invention) The present invention has been made to solve the above-mentioned problems, and in a device for detecting and correcting misalignment of spoke wheels, in which the hub axle of the spoke wheels is held in a fixed position with respect to the frame of the device. , The horizontal shake of the rim is detected while swinging along the rim having the mismatch, and the accuracy of the horizontal shake detection of the rim is improved, and the structure of the horizontal shake detection device is relatively simple. It is intended to be compact and small.

(Structure of the Invention) In order to achieve the above object, in the present invention, the hub axle of the spoke wheel is held at a fixed position with respect to the frame of the device, and the upper plate and the lower portion provided on the column of the frame so as to be vertically movable. The plate is provided with a spline shaft parallel to the hub axis of the spoke wheel so as to be slidable in the axial direction, and the rim of the spoke wheel held in a fixed position is clamped by two rollers and moved along with the swing of the rim. Provided on the spline shaft, the disc is fixed to one end of the spline shaft that moves as the rim swings,
Detectors that face the disc and detect the distance between the discs are fixedly provided on the upper plate and the lower plate, respectively, to form a lateral shake detecting device of a rim in a spoke wheel misalignment detecting and correcting device.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a spoke wheel for a bicycle, la (see FIGS. 6 and 7) is a hub axle, lb is a hub, lc is a rim, ld is a spoke, le.
(See Figures 4, 5 and 13) is a nipple.

Reference numeral 2 is a base frame of the device of the present invention, and 2a is a supporting leg thereof. Numeral 3 is a pillar vertically erected at each of four corners of the base frame 2, numeral 4 is a top plate horizontally installed between the upper ends of the pillars 3, and numeral 5 is horizontally arranged between the brackets 6 protruding from the lower portions of the pillars 3. It is the bottom plate installed.

Base plates 9 and 10 are bridged over the middle portions of the columns 3 on both the left and right sides via bearing plates 7 and 8 fixed to the columns 3, respectively, and as shown in FIGS. 2 and 6 on these base plates 9 and 10. The hub axle clamp devices A and B are provided to face each other.

In the hub axle clamp device A, a bed 11 is horizontally provided on a base plate 9, and a slide base 12 is slidably provided on the bed 11. To slide the slide base 12, for example, a feed screw (not shown) is rotatably provided on the bed 11,
Attach the nut (not shown) that engages with this feed screw to the slide base 12.
, And the feed screw may be rotated forward and backward. 13 is a motor with a speed reducer for driving the feed screw, 14 is a coupling, and 15 is a position detector for detecting and instructing the position of the slide base 12.

Further, a bearing 16 is provided so as to project on the inner end portion of the slide base 12, and the spoke wheel 1 is attached to the inner end portion of a rod 17 which penetrates the bearing 16.
The holder 18 for holding the hub shaft 1a of the above is provided, and the outer end of the rod 17 is connected to the piston rod 20a of the cylinder 20 fixed to the bracket 19 protruding from the slide base 12 to form the bearing 16. On the other hand, the rod 17 is slidable. The rod 17 is provided with a spline so that it can slide in the axial direction but does not rotate.

As shown in FIG. 7, the holder 18 has a cutout portion 18a for supporting the hub shaft 1a by dropping it, and a pressing piece 18b for restraining the supported hub shaft 1a is rotatably provided by a pin 18c. Is urged by the spring 18d so that it is always in the open position, and when the actuator 18e projects, the pressing piece 18b rotates in the direction of the arrow G against the spring 18d to restrain the hub shaft 1a. To do so.

Numerals 21 and 22 are chutes for guiding the hub axle support, which are fixed to the slide base 12 via a bracket 23 (see FIG. 1).

Since the hub shaft clamp device B has substantially the same structure as the hub shaft clamp device A described above, the same members are denoted by the same reference numerals and the description thereof will be omitted. Only different parts will be described.

That is, in the hub axle clamp device B, a slide table 24 is further provided on the slide table 12, the slide table 24 is connected to the piston rod 20a of the cylinder 20 via the bracket 25, and the slide table 24 is also provided. The cylinder 26 is installed on the
Let 26 actuate rod 17.

In addition, 4 which vertically penetrates the top plate 4 and the bottom plate 5, respectively.
The shafts 27, 28, 29, 30 (see FIG. 3) are provided, the upper plate 31 is provided below the top plate 4 so as to be vertically movable with respect to the four shafts 27 to 30, and the upper plate 31 is provided above the bottom plate 5. The lower plate 32 is provided so as to be able to move up and down with respect to the four shafts 27 to 30, and the upper plate 3 of the two shafts 27 and 29 diagonally located among the four shafts 27 to 30.
Turnbuckle type screws 27a, 27b (see FIG. 1) and 29a, 29b (second part) at the fitting portion between 1 and the lower plate 32, respectively.
Bosses 31a, which form the
32a are integrally provided on the upper plate 31 and the lower plate 32, respectively, and the upper plate 31 and the lower plate 32, through which the shafts 28, 30 pass, are integrally provided with boss portions 31b, 32b for raising and lowering guides.

As shown in FIG. 3, pulleys 33 and 34 are fixed to the shafts 27 and 29 protruding above the top plate 4, and a motor 36 with a reducer is provided on the top plate 4 via a bracket 35. The drive pulley 37 is fixed to the output shaft 36a, and the pulleys 33,
A belt 38 is stretched over 34 and 37 as shown in FIG.

Further, as shown in FIGS. 4, 5, 8, 9 and 10, a plate-like bracket 39 (see FIG. 5) is provided in the rear of the upper plate 31, and the spoke wheel 1 rotates the spoke wheel 1 on the bracket 39. A drive device C is provided.

In this spoke wheel drive device C, two support rods 40 are provided below a bracket 39 at appropriate intervals, and a spline shaft 41 is slidable between the lower ends of these two support rods 40. Insert it. A large number of balls 42 (see FIG. 8) may be inserted in this spline fitting portion to reduce sliding resistance.

A boss-like protrusion 43 is fixed to the center of the spline shaft 41,
Horizontal rods 44 extending in parallel with the spline shaft 41 are formed integrally with the projections 43, and pivot shafts 45 project downward from both side ends of the horizontal rods 44, respectively. While supporting the corner portions of the L-shaped levers 46 and 47 on the support shaft 45,
As shown in FIG. 10, the short side portions 46a and 47a are overlapped with each other in the front-rear direction, and one short side portion 47a is pivotally supported by a pin 49 on a roller 48 in contact with the other short side portion 46a. Side 46a, 47
Tension the spring 50 between a and. Further, a bracket 51 is provided in the rear of the horizontal rod 44 so that the end of the cylinder 52 is pivotally supported on the bracket 51 by a pin 53 (see FIG. 9) and is connected to the end of a piston rod 52a of the cylinder 52. The head block 54 and the short side portion 46a of the L-shaped lever 46
Drive rollers 56 that are connected to each other at the ends of the long side portions 46b and 47b of the L-shaped levers 46 and 47 and are in contact with the side surface of the rim 1c.
Is rotatably supported via a shaft 57 and a bearing 58.

Further, a motor 61 with a speed reducer is provided on the plate-shaped bracket 39 via brackets 59 and 60, and this output shaft 61a is connected to an input shaft 63a of a gear box 63 provided on the bracket 39 via a coupling 62. .

In the gear box 63, for example, as shown in FIG.
A gear 65 that directly meshes with a gear 63b fixed to the input shaft 63a is provided, and a gear 65 that meshes with the gear 63b via an intermediate gear 64 is provided. Two output shafts 66 fixed to each gear 65 are projected below the gear box 63 and the bracket 39, and these two output shafts 66 and the shafts 57 of the two drive rollers 56 are respectively universal shafts. Connect with 67.

Next, as shown in FIGS. 1, 2, 4, 5, 11, and 12, a rim lateral shake detection device D for detecting lateral shake of the rim 1c is symmetrical to the upper plate 31 and the lower plate 32, respectively. Provided is a radial shake detection device E for the spoke wheel, which detects the radial shake of the spoke wheel 1.

As shown in detail in FIGS. 11 and 12, the rim lateral shake detection device D includes a lower plate 32 (or an upper plate 3).
In 1), two bearings 68 are provided so as to project at appropriate intervals, and a spline shaft 69 parallel to the hub 1b of the spoke wheel 1 is axially slidably inserted into these bearings 68. A large number of balls 70 (see FIG. 11) may be inserted in this spline fitting portion to reduce sliding resistance.

A boss-shaped protrusion 71 is fixed to the center of the spline shaft 69,
Horizontal rods 72 extending in parallel with the spline shaft 69 are formed integrally with the projections 71, and pivot shafts 73 are respectively projected from both end portions of the horizontal rod 72, and the two pivot shafts 73 are attached to the two pivot shafts 73. The corner portions of the L-shaped levers 74 and 75 are pivotally supported as shown in FIG. 12, and the short side portions 74a and 75a thereof are overlapped back and forth, so that one short side portion 75a is overlapped with the other short side portion 74a. A roller 76 that comes into contact with is pivotally supported by a pin 77, and a spring 78 is stretched between both short side portions 74a and 75a. Further, a bracket 79 is projected behind the horizontal rod 72, and the end portion of the cylinder 80 is attached to the bracket 79 by a pin 81.
(See FIG. 11) The head block 82, which is pivotally supported by the cylinder 80, is connected to the end of the piston rod 80a of the cylinder 80, and the short side portion 74a of the L-shaped lever 74 is connected by a pin 83. Shafts 84 are respectively provided at the ends of the long side portions 74b and 75b of the copying rollers 75 and 75 to make contact with the side surface of the rim 1c.
85 is rotatably supported by a shaft 84.

A disc 86 is fixed to one end of the spline shaft 69, and a detector 87 that faces the disc 86 and detects the interval is attached to the lower plate 32 via a bracket 88.
(Or fixed to the upper plate 31) to configure the lateral shake detection device D of the rim.

Also, the radial shake detection device E of the spoke wheel is
As shown in detail in FIGS. 12 and 13, the lower plate 32 (or the upper plate 3) on the side of the lateral shake detection device D of the rim D is detected.
1) A bracket 89 is provided so as to project, and an intermediate portion of the horizontal rod 90 is pivotally supported by a pin 91 at an end portion of the bracket 89 so that the bracket 89 can be tilted. A vertically extending member 92 orthogonal to the horizontal rod 90, a spherical joint projection 93 is provided on the member 92 located between the copying rollers 85, and a spherical joint fitting for fitting with the projection 93 is provided. The member 94 is formed integrally with a roller support rod 95 extending in the front-rear direction, and contacts the outer periphery of the rim 1c on both sides of a shaft 96 provided horizontally at the front and rear ends of the roller support rod 95, respectively. Four copying rollers 97 are rotatably provided. Further, a pin 98 is provided so as to project from the front end of the member 92, and a long hole 99 (see FIG. 12) fitted with the pin 98 is provided on the roller support rod.
It is provided at the front end of 95 to prevent the rotation of the roller support rod 95 around the spherical joints 93, 94 and to suppress the tilting of the copying roller 97 within a predetermined range.

Further, a cylinder 100 is arranged substantially vertically outside the bracket 89, and an end portion of the cylinder 100 is connected to a lower plate 32 by a pin 101 via a bracket (not shown).
(Or the upper plate 31) and the clevis 102 connected to the end of the piston rod 100a of the cylinder 100 is connected to the middle of the outer side of the horizontal rod 90 via the pin 103, and the outside of the horizontal rod 90 is connected. A horizontal plate 104 is fixed to the end portion, and a detector 105 that faces the horizontal plate 104 and detects the interval is provided on the lower plate 32 (or the upper plate 31) via the bracket 106, and the radial direction of the spoke wheels is set. The shake detection device E is configured.

Next, as shown in FIGS. 1, 2, and 13, the upper plate 31
Spoke wheel misalignment correction device for correcting the misalignment of the spoke wheel 1 by rotating the nipples 1e provided at the connecting portions of the spokes 1d of the spoke wheel 1 and the rim 1c symmetrically to the lower plate 32 and the lower plate 32, respectively. Provide F.

This spoke wheel misalignment correction device F, as shown in detail in FIG. 13, includes a lower plate 32 (or an upper plate).
31), a bearing 107 is provided in a protruding manner, and a shaft 108 is provided through this bearing 107 so as not to move in the axial direction but to allow rotation.
A member 109 having a projecting piece 109a is fitted to the lower end portion of the shaft 108 in FIG. 13, and a centering mechanism 110 (the thirteenth
See Fig. (B)) for the lower plate 32 (or the upper plate)
It is fixedly installed in 31). This centering mechanism 110 is
A hollow cylindrical threaded sleeve 110b is screwed into the flange portions on both sides of the bracket 110a bent in a U shape, and a pusher 110c and a spring 110d are inserted into the sleeve 110b, and a plug 110e is screwed in. , Pusher 110c
Always press the protrusions 109a from both sides with the tip of the
109a is located in the center.

In addition, a bracket 112 is projectingly provided on one end of a spline shaft holder 111 whose side surface is formed in a channel shape, and the bracket 112 is connected to the upper end of the shaft 108 in FIG. 111
A bracket 114 protruding from the other end of the cylinder 115 is connected to the tip of the piston rod 115a of the cylinder 115 by a pin 116, and the base of the cylinder 115 is connected to the bracket 117 protruding from the lower plate 32 (or the upper plate 31). It connects with the pin 118.

In addition, a spline shaft 119 that rotatably penetrates both side flanges of the spline shaft holder 111 is provided, and a nipple wrench holder 120 is slidably fitted on the spline shaft 119, and a nipple wrench 1 is attached to the tip of the holder 120.
Connect 21. Also, a bracket 122 is fixed to the outer protruding end of the spline shaft 119, and the cylinder is attached to the bracket 122.
While fixing 123, the piston rod 123a of the cylinder 123 is connected to the nipple wrench holder 120.
Further, the member 109 having the projecting piece 109a of the centering mechanism 110 is fitted to the inward protruding end of the spline shaft 119, and the centering mechanism 110 is fixed to the spline shaft holder 111.

In addition, a motor with reduction gear (air motor) 1 is attached to the lower plate 32 (and the upper plate 31) via brackets 124 and 125.
26 is provided, and the output shaft 126a of this motor 126 is coupled 1
Lower plate 32 (or upper plate 31) through 27
Connected to the input shaft 128a of the gear box 128 installed in the above, and the output shaft 128b of this gear box 128 and the input shaft 121a of the nipple wrench 121 are connected by the universal shaft 129, and the spoke wheel misalignment correction device F is connected. Make up.

Note that the gear box 128 has a speed reduction mechanism and a known fixed position where the opening of the nipple rotation spanner 121c provided at the back of the spoke insertion notch 121b of the nipple wrench 121 is always aligned with the notch groove 121b and stopped. A stop mechanism is provided.

Further, as shown in FIG. 1 and FIG. 2, a position detector 130 is installed between the bottom plate 5 and the lower plate 32 to detect and instruct the positions of the lower plate 32 and the upper plate 31 which moves up and down symmetrically with the lower plate 32. I am doing it. The position detector 130, for example, vertically lowers the rod 130a from the lower plate 32, uses a rack and a pinion mechanism (not shown) provided on the bottom plate 5 to indicate the ascending / descending amount by a rotary pointer, and detects the detected value if necessary. May be taken out as an electric signal.

Also, as shown in FIGS. 5 and 14, the lower plate
Two brackets so that the spoke wheel 1 is sandwiched on the 32
131 is provided so as to project, a light emitter 132 for irradiating the spoke portion of the spoke wheel 1 is provided on the upper end of one bracket 131, and a light receiver 133 facing the light emitter 132 is provided on the upper end of the other bracket 131. When the spoke wheel 1 rotates, the rotation of the spoke wheel 1 is detected by detecting that the spoke 1d has crossed the light of the light emitter 132 by a photoelectric element of the light receiver 133, and if necessary, the detected value is electrically converted. Take out as a signal so that each part of the device can be controlled.

(Operation) Next, the operation of the device of the present invention configured as described above will be described.

To use this device to detect and correct spoke wheel misalignment, first adjust each part of the device to the size of each part of the spoke wheel that is about to be applied to this device.

That is, the hub axle clamp devices A and B are
By driving 3, the sliding base 12 is set to the head 11 at a predetermined position adapted to the lengths of the hub axle 1a and the hub 1b of the spoke wheel 1. The position can be confirmed by the position detector 15.

Once the slide 12 is set in place, the cylinder
20 is operated so that the piston rod 20a is projected to the maximum extent. In the hub axle clamp device A, the holder at this time
The end surface of 18 is the standard position, and in the hub axle clamp device B, the state in which the cylinder 26 on the sliding base 24 leaves the rod 17 to leave is the state in which the spoke wheels are received. The space between them should be slightly larger than the size of the hub to be clamped. Then, the notch portion 18a which is the drop support portion of the hub axle 1a of the holder 18
The pressing piece 18b provided in the opening (see FIG. 7) is an actuator 18e.
Is set to the retracted position, the pressing piece 18b is rotated in the direction of arrow H by the spring 18d as shown in FIG.

When the spoke wheel 1 is fed through the chute 21 in this state, the hub axle 1a falls into the notch 18a,
After that, by pushing out the actuator 18e, the pressing piece 18b is rotated in the direction of arrow G in FIG. 7 to restrain the hub shaft 1a, and the cylinder 26 (see FIG. 6) of the hub shaft clamp device B is moved. By operating and pushing out the rod 17, the hub shaft 1a of the spoke wheel 1 is held between the left and right holders 18.
The spoke wheels 1 to be mounted on this device are assembled by an automatic assembly machine, and each spoke 1d is stretched in a substantially regular state.

Also, the positions of the upper plate 31 and the lower plate 32 are set in advance to predetermined positions so as to match the diameter of the spoke wheel 1 to be applied to this device. That is, when the motor 36 is driven, the pulleys 37 and 34 are rotated from the pulley 37 via the belt 38, and the shafts 27 and 29 having the turnbuckle type screw are rotated together therewith, so that the upper plate 31 and the lower plate 32 are Move up and down symmetrically. In this case, the other two shafts 28, 30 serve as guides. Therefore, by rotating the motor 36 a desired amount, the upper plate 31
The lower plate 32 can be set at a predetermined position. The position can be detected by the position detector 130.

As described above, in order to rotate the spoke wheel 1 holding the hub shaft 1a by the hub shaft clamp devices A and B, the fourth,
This is performed by the spoke wheel drive device C shown in FIGS. That is, the cylinder 52 is operated to operate the piston rod 52a.
When is pushed out, as shown in FIG. 10, the L-shaped lever 46 rotates in the direction of arrow I about the shaft 45 as a fulcrum via the pin 55, and in conjunction with this, the L-shaped lever 47 also rotates in the direction of arrow J. Move.
When the rim 1c of the spoke wheel 1 is received in this open state and the cylinder 52 is operated to pull in the piston rod 52a, the L-shaped levers 46 and 47 rotate in the opposite direction from the front with the shaft 45 as the fulcrum. The left and right driving rollers 56 press the rim 1c.

When the motor 61 is driven in this state, the gear 63b in the gear box 63 is rotated, and the gears 65 on both sides are rotated in the opposite directions to each other (one gear is through the intermediate gear 64).
Since this rotation is transmitted to the drive roller 56 via the universal shaft 67, the rotation of the roller 56 causes the rim 1c to rotate.

The rim 1c of the spoke wheel 1 before correction of misalignment causes lateral shake due to rotation, but this lateral shake is caused by the L-shaped lever.
The horizontal rod 44 and the boss-like projection 43, which are formed integrally with the pivot shafts 45 of 46 and 47, slide on the support rod 40 via the spline shaft 41 to absorb them. Further, the shake of the transmission system of the roller 56 can be sufficiently absorbed by the universal shaft 67. Therefore, the drive of the spoke wheel 1 is driven by the rim 1c.
Even if there is a horizontal shake, it will be performed without any problems.

When the spoke wheel 1 rotates, the spoke 1d of the wheel 1 passes between the photoelectric devices 132 and 133 shown in FIG. 14, so that the rotation amount can be detected by counting the number of passages of the spoke 1d.

Further, in the present embodiment, the lateral shake detection device D of the rim and the radial shake detection device E of the spoke wheel (see FIGS. 11 and 12) are symmetrical in the upper and lower portions (see FIGS. 1 and 2). )
It has been installed in, but its action is as follows.

That is, the lateral shake detection device D of the rim is used for the spoke wheel 1
Before accepting, the piston rod 80a is pushed out by operating the cylinder 80 (see FIG. 12) to rotate the L-shaped levers 74 and 75 about the shaft 73, and the left and right copying rollers 85 are opened. is there. If the rim 1c of the spoke wheel 1 is positioned between the rollers 85 in this state, the cylinder 80 is operated to retract the piston rod 80a, and the left and right copying rollers 85 come into contact with both sides of the rim 1c as described above. .

When the rim 1c rotates in this state and lateral shake occurs due to misalignment, the copying roller 85 shakes left and right while holding the rim 1c, and its lateral movement is transmitted to the spline shaft 69 as described above. As a result, the distance between the disk 86 and the detector 87 changes. Therefore, the change in this interval can be detected by the detector 87.

Further, before the spoke wheel 1 is received, the radial runout detecting device E of the spoke wheel operates the cylinder 100 (see FIG. 11) to push out the piston rod 100a, so that the horizontal rod 90 uses the pin 91 as the fulcrum. In FIG. 11, the roller 97 is slightly rotated counterclockwise so that the roller 97 is located slightly below the illustrated position. In this state, if the rim 1c of the spoke wheel 1 is located between the rollers 85, the horizontal rod 90 is rotated clockwise about the pin 91 in FIG. 11 by operating the cylinder 100 and retracting the piston rod 100a. By moving, the four copying rollers 97 are pressed against the outer peripheral surface of the rim 1c.

The four copying rollers 97 are supported by a spherical joint 93 at their center positions so as to be tiltable in all directions, and by fitting a pin 98 and an elongated hole 99 (see FIG. 12), the roller supporting rod 97 is supported. Since the rotation of 95 in the horizontal plane and the inclination beyond a certain limit are stopped, the spoke wheel 1
The four copying rollers 97 can always keep contact with the outer peripheral surface of the rim 1c during the rotation.

Therefore, when the spoke wheel 1 is rotated to cause a shake in the radial direction, the four copying rollers 97 and the shaft 9 are used.
The horizontal rod 90 swings around the pin 91 via the roller support rod 95, the spherical joints 94 and 93, and the member 92. Therefore, the distance between the horizontal plate 104 fixed to the outer end of the horizontal rod 90 and the detector 105 varies, and as a result of detecting the variation in the distance by the detector 105, the radial deflection of the spoke wheel is detected. Can be detected.

Since four copying rollers 97 are used in this embodiment, the radial runout is detected as an average value at the center points of the spherical joints 93, 94 which are the central points of the four individual copying rollers 97. . Since the center points of the spherical joints 93 and 94 coincide with the centers of the two copying rollers 85 for detecting the lateral shake, the lateral shake and the radial shake measurement position are the same, which is convenient.

Next, based on the shake detection values detected by the lateral shake detecting device D for the rim and the radial shake detecting device E for the spoke wheels, the spokes for correcting the inconsistency of the wheels by rotating the spoke nipples 1e at the corresponding positions. The operation of the wheel misalignment correction device F will be described with reference to FIG.

When the spoke wheel 1 is to be received, the cylinder 123 is operated to pull in the piston rod 123a, thereby pulling the nipple wrench 121 through the holder 120 to a position not in the way as shown by arrow K in FIG. 13 (a). deep.
In this case, the length of the universal shaft 129 varies slightly, but this can be absorbed by the spline shaft 129a. Accept the spoke wheel 1 in this state,
As a result of the mismatch detection by the above-described operation, in order to rotate and correct the nipple 1e of the corresponding spoke 1d, first, the cylinder 123 is operated to push out the piston rod 123a, as shown in FIG. 13 (a). , Nipple wrench 121
The desired spoke in the notch groove 121b (see FIG. 13 (c)).
The spoke 1d is inserted so that the spoke 1d is located inside the spanner 121c at the back. Then operate the cylinder 115 to pull in the piston rod 115a,
1 is pulled down as shown by arrow L, and the wrench 121c in the nipple wrench 121 is fitted into the nipple 1e.

Note that the nipple wrench 121 can be moved to the right and left to some extent by the action of the above-described centering mechanism 110 during operation (see FIG. 13 (b)), and can be tilted to some extent by the rotation about the spline shaft 119. . Therefore, an angular deviation or a slight positional deviation between the spokes 1d is automatically absorbed, so that the spanner 121c and the nipple 1e can be fitted easily. After the spanner 121c and the nipple 1e are disengaged, the spring 110d of the centering mechanism 110 is released.
Can be automatically restored to the normal state.

When the wrench 121c is fitted into the nipple 1e, the motor 126 rotates in a predetermined direction by a predetermined amount by a correction amount based on the mismatch detection value. This correction amount can be set artificially or can be automatically obtained by a computer or the like.

Then, if the motor 126 rotates, the coupling 127,
Gear box 128, universal shaft 129, input shaft 12
The spanner 121c rotates via the 1a to rotate the nipple 1e by a predetermined amount to correct the misalignment. In this case, spanner 121c
The stop position of the wrench 121c is the opening of the spanner 121c by a known fixed position stop mechanism provided in the gear box 128.
It stops at a position that coincides with the notch groove 121b of 121.

When this modification is completed, push out the piston rod 115a of the shaft 115, and slightly push up the nipple wrench 121 to remove the spanner 121c from the nipple 1e, and then retract the piston rod 123a of the shaft 123 to remove the nipple wrench. By pulling back 121 in the direction of arrow K, the wheel 1 can be rotated again by the required amount.

By repeating the above operation as many times as necessary,
Spoke wheel misalignment can be detected and corrected.

As an actual work procedure, for example, first, the spoke wheel 1 is rotated, the lateral shake detecting device D and the radial shake detecting device E of the spoke wheel detect misalignment of each part of the wheel, and this is input to the computer. Then, after correcting each part of the wheel that needs to be corrected by the spoke wheel misalignment correction device F, the detection device further detects the correction degree of the corrected wheel and corrects it again if necessary. I do.

When the correction work of the spoke wheel 1 is completed as described above, the piston rod 52a of the cylinder 52 of the spoke wheel drive device C is pushed out to separate the drive roller 56 from both sides of the rim 1c, and the rim lateral shake detection device D Push out the piston rod 80a of the cylinder 80 to attach the copying roller 85 to the rim 1c.
Further, the copying roller 97 is separated from the outer periphery of the rim 1c by further pushing out the piston rod 100a of the cylinder 100 of the radial shake detection device E of the spoke wheel, and in this state, the holder 18 of each of the hub shaft clamp devices A and B is By retracting the actuator 18e, the pressing piece 1 is operated by the action of the spring 18d.
Rotate 8b upward as shown by arrow H in Fig. 7 to move hub shaft 1a
Is released and the piston rods 20a of the left and right cylinders 20 are retracted,
The hub axle 1a escapes from the. The escaped hub axle 1a is supported by the chute 22, so that the spoke wheel 1 is guided to the outside by being guided by the inclined chute 22.

(Effects of the Invention) As described above, the rim lateral shake detection device in the spoke wheel misalignment detection and correction device according to the present invention holds the spoke wheel by holding the hub axle of the spoke wheel at a fixed position with respect to the frame of the device. Since the lateral runout of the rim is detected at two upper and lower positions by rotating and swinging along the rim having the misalignment, it is possible to detect lateral runout of the rim as compared with the conventional detecting device by moving the hub axle. An excellent effect is obtained in that the shake detection accuracy can be significantly improved.

Further, since the rim lateral shake detecting device of the present invention is compactly installed in the vicinity of the rim of the spoke wheel independently of other devices, there is also an advantage that the structure is relatively simple and can be made compact.

[Brief description of drawings]

FIG. 1 is a front view of a spoke wheel inconsistency detection / correction device having the device of the present invention, FIG. 2 is a front view showing its internal structure, FIG. 3 is a plan view of its top plate portion, and FIG. 1 is a left side view, FIG. 5 is a right side view of FIG. 1 with a part omitted, FIG. 6 is a front view of a hub axle clamp device, and FIG. 7 is a detailed view of a hub axle holder portion. FIG. 8 is a front view of a spoke wheel drive device, FIG. 9 is a side view thereof, FIG. 10 is a bottom view of a main portion of FIG. 9, and FIG. 11 is a lateral shake detection device of a rim of the present invention and a spoke wheel. A front view of the radial shake detection device, FIG. 12 is its plan view, FIG. 13 (a) is an elevation view of a spoke wheel misalignment correction device, and FIG. 12 (b) is a front view of its centering mechanism. FIG. 14C is a plan view of the nipple wrench, and FIG. 14 is a front view of the wheel rotation detecting photoelectric device. 1 …… Spoke wheel, 1a …… Hub shaft 1b …… Hub, 1c …… Rim 1d …… Spoke, 1e …… Nipple 2 …… Base frame, 3 …… Stands 4 …… Top plate, 5 …… Bottom plate A , B …… Hub axis clamp device 31 …… Upper plate, 32 …… Lower plate C …… Spoke wheel drive device D …… Rim lateral shake detection device E …… Spoke wheel radial shake detection device F …… Spoke Wheel misalignment correction device.

Claims (1)

[Claims] 1. A spline parallel to the hub axle of the spoke wheel, wherein the hub axle of the spoke wheel is held at a fixed position with respect to the frame of the apparatus, and the upper plate and the lower plate provided on the column of the frame so as to be able to move up and down, respectively. A shaft is provided slidably in the axial direction, and a device for moving the rim of the spoke wheel held at a fixed position with two rollers while moving the rim of the spoke wheel is provided on the spline shaft, and moves with respect to the run of the rim. A disc wheel is fixed to one end of the spline shaft, and a detector for detecting the gap between the disc and the spline shaft is fixed to the upper plate and the lower plate, respectively. Lateral shake detection device of the rim in the correction device.