JP7602790B2 - Position adjustment device and support stand - Google Patents

Description

The present invention relates to a position adjustment device and a support stand.

Patent document 1 describes a display device that displays the center line of the vehicle in the left-right direction, and a device that uses this display device to position a reference tool (such as a target plate) for adjusting the mounting positions of various sensors installed on the vehicle.
This device comprises a front linear laser pointer unit and a rear linear laser pointer unit provided on a main body unit installed on the floor, a reference line or reference point provided on the main body unit, and a vehicle centerline display device arranged so that the linear direction of laser light emitted by the front linear laser pointer unit, the linear direction of laser light emitted by the rear linear laser pointer unit and the reference line or reference point are in the same plane perpendicular to the horizontal plane, an upright guide plate unit, a planar mirror unit provided so as to hang vertically from the front of the guide plate unit, a notch portion provided at the lower end of the guide plate unit that penetrates in the fore-and-aft direction, a guide linear laser pointer unit that emits laser light in a line parallel to the surface of the mirror unit, and a distance sensor.

JP 2018-194536 A

The present invention aims to provide a position adjustment device and support stand that are easy to use when positioning an object to be supported.

The invention described in claim 1 is a position adjustment device that includes a base, a support section that is attached to the base via a rotation axis and supports the target board so that it can be tilted, and an adjustment section that adjusts the tilt of the target board, the adjustment section having a connecting section that is attached to the support section, a retractable member that has one end attached to the connecting section and has a plurality of recesses that are spaced apart in the longitudinal direction and can be advanced and retreated relative to the base section, and a plunger that is fixed to the base section and has a protrusion that fits into the recess, and the tilt of the support section changes in response to the advancement and retreat of the retractable member.

The invention described in claim 2 comprises a base part, a support part that is provided on the base part via a rotation axis and supports the target board so that it can be tilted, and an adjustment part that adjusts the tilt of the target board, and the adjustment part has a universal joint provided on the support part, a rod connected to the universal joint and having a plurality of recesses formed therein at intervals in the longitudinal direction, capable of advancing and retreating relative to the base part, and a plunger that is fixed to the base part and has a protrusion that fits into the recess.

The invention described in claim 3 is the position adjustment device described in claim 1, in which the connecting part and the advancing/retracting member are connected to each other via threaded parts formed on the connecting part and the advancing/retracting member, respectively.

The invention described in claim 4 is the position adjustment device described in claim 3, further comprising a first limiting portion that limits the range of movement on one side of the advancing/retreating member, and a second limiting portion that limits the range of movement on the other side of the advancing/retreating member, the first limiting portion being a knob provided on the other end of the advancing/retreating member.

The invention described in claim 5 is a position adjustment device described in claim 4, wherein the second limiting portion is a tubular member through which the advancing/retreating member passes and which is arranged between the base portion and a protrusion portion that protrudes outward beyond the outer peripheral surface of the advancing/retreating member .

The invention described in claim 6 is the position adjustment device described in claim 4, in which the base portion has an attachment portion that can be hooked onto a lifting device that moves up and down.

The invention described in claim 7 is a support stand including a position adjustment device described in any one of claims 1 to 5 and a lifting device that raises and lowers the position adjustment device.

The present invention provides a position adjustment device and support stand that are easy to use when positioning an object to be supported.

1 is an overall view of a support base of a target board according to an embodiment of the present invention, viewed from the front side. 13 is a side view of a position adjustment device provided on the support base of the target board. FIG. FIG. 3 is a view taken along the arrow A in FIG. 2 . FIG. 3 is a view taken along the arrow B shown in FIG. 2 . FIG. 3 is a view taken along the arrow C shown in FIG. 2 . FIG. 4 is a cross-sectional view showing the positional relationship between a rod and a plunger.

Next, with reference to the attached drawings, an embodiment of the present invention will be described to facilitate understanding of the present invention. Note that in the drawings, parts that are not relevant to the description may be omitted.

The support stand (hereinafter simply referred to as the "support stand") 10 for a target board (an example of an object to be supported) TB in one embodiment of the present invention is used in a vehicle maintenance shop and is installed at a predetermined position in front of the vehicle for aiming operations.
As shown in Figure 1, the support base 10 is equipped with a lifting device 20 that raises and lowers to adjust the position of the target board TB in the vertical direction (see arrow Z in Figure 1), and a position adjustment device 30 that adjusts the forward/backward inclination of the target board TB (see arrow R in Figure 1), so that the target board TB can be adjusted to a predetermined position during aiming operations.

The lifting device 20 has legs 202 that contact the installation surface, a support 204 that extends vertically from the legs 202, and a lifting section 206 that can rise and fall along the support 204, and the lifting section 206 can be adjusted to any height position.

As shown in FIG. 2, the position adjustment device 30 includes a base portion 32, a support portion 34, and an adjustment portion 36.
The base portion 32 has a hole forming member 322 , a holding member 324 , and an attachment portion 326 .
The hole forming member 322 has a hole 328 formed in the upper part with a central axis extending horizontally, and has female threads 329a, 329b (see Figure 6) that penetrate into this hole 328 from the outside in the left-right direction.
Note that "horizontal" here does not mean horizontal in the strict sense. In other words, "horizontal" means "substantially horizontal" with allowance for design and manufacturing errors (hereinafter the same). Specifically, for example, the angle deviation from the horizontal line may be within the range of -5 degrees to +5 degrees.

As shown in FIG. 2, the holding member 324 is a right-angled triangular member in side view, with the portion corresponding to the right angle positioned below and in front of the hole forming member 322. A hole through which the rotation shaft 330 passes is formed in the front end of the holding member 324. The central axis of this rotation shaft 330 is axis AX that extends horizontally, and is set to pass through a predetermined position on the target board TB in front view. In addition, this predetermined position is generally the center in the vertical direction.

The mounting portion 326 is provided on the rear side of the hole forming member 322 and is a member for hooking onto the upper end of the lifting portion 206 of the lifting device 20. The position adjustment device 30 is supported by the lifting device 20 simply by being hooked onto it, making it easy to attach and detach.

The support portion 34 is a channel-shaped member extending in the vertical direction, and the target board TB is attached to the front side thereof.
As shown in FIG. 3, the support portion 34 is provided on the holding member 324 of the base portion 32 via a rotation shaft 330, and can support the target board TB so that it can be tilted around the axis AX.
4, round bar-shaped connecting members 344, 346 are provided on the upper portion of the support portion 34, which are spaced apart in the normal direction of the front surface of the target board TB and connect the opposing plate-shaped members 342a, 342b of the support portion 34 to each other. A mounting portion for mounting a spirit level is formed by these connecting members 344, 346. These connecting members 344, 346 also function as handles when carrying the position adjustment device 30.

As shown in Figures 5 and 6, the adjustment unit 36 has a ball joint 362, a rod 364, plungers 366a, 366b, a knob 368, and a cylindrical member 370, and can adjust the inclination of the target board TB.

A ball joint (an example of a connecting portion or universal joint) 362 connects the support portion 34 and the rod 364 , and can smoothly transmit the force received from the rod 364 to the support portion 34 .
The ball joint 362 has a ball 372 and a ball receiver 374 that receives the ball 372 .
The ball 372 is a spherical member, and is fixed to the support portion 34 via fixing members 376a and 376b at a position away from the axis AX.
The ball receiver 374 is formed so that the ball 372 fits and slides thereon and has an extending male screw 378 .

In addition, any universal joint may be used instead of the ball joint 362. Furthermore, any connecting part that can connect the support part 34 and the rod 364 so as to smoothly transmit the force received from the rod 364 to the support part 34 may be used. For example, the connecting part may be configured to have a horizontally extending shaft and a bearing that receives the shaft, with one of the shaft and the bearing being fixed to the support part 34 and the other being fixed to the rod 364.

The rod (an example of an advancing/retracting member) 364 is a cylindrical member that can advance and retreat in the front-rear direction (see arrow Y shown in FIG. 5 or FIG. 6 ) relative to the base portion 32. The rod 364 is set so that its outer diameter is smaller than the hole 328 formed in the hole forming member 322 of the base portion 32, and is provided so as to pass through the hole 328.
6, female threads 380f, 380b are formed on both end surfaces of the rod 364. The male threads 378 (see FIG. 5) of the ball receiver 374 are inserted into the female thread 380f, connecting the rod 364 and the ball joint 362.

A plurality of annular grooves (examples of recesses) 382f, 382c, 382b are formed along the outer circumferential surface at intervals in the longitudinal direction at one end of the rod 364. The intervals between the grooves 382f, 382c, 382b are set so that the target board TB can take a predetermined angular position (inclination angle) required for the aiming operation.
A flat washer (an example of a protrusion) 384 having an outer diameter larger than the outer diameter of the rod 364 is attached to the end face on the other side of the rod 364, and the male thread 378 of the ball receiver 374 passes through a hole in this flat washer 384. The flat washer 384 is fixed to the rod 364 by using a nut 385 inserted into the male thread 378. When tightened, this nut 385 not only has the function of fixing the flat washer 384, but also has the function of fixing the positions of the male thread 378 and the female thread 380f.

As shown in FIG. 6, the plungers 366a and 366b are fixed by being inserted into the female threads 329a and 329b formed in the hole forming member 322 of the base portion 32, and have balls 386a and 386b (an example of a protrusion) at their tips that can move forward and backward depending on the force applied. The balls 386a and 386b fit into grooves 382f, 382c, and 382b formed in the rod 364.

Therefore, the plungers 366a, 366b can stably hold the rod 364 at a position where they fit into the respective grooves 382f, 382c, 382b. On the other hand, when a large force is applied in the longitudinal direction of the rod 364, the balls 386a, 386b move backward and pass over the respective grooves 382f, 382c, 382b, allowing the rod 364 to move forward and backward.
The protrusions fitted into the grooves 382f, 382c, and 382b may be pins instead of the balls 386a and 386b.

As the rod 364 advances and retreats, a pushing and pulling force is applied to the support part 34 via the ball joint 362. As a result, the support part 34 rotates around the axis AX. In other words, the inclination of the support part 34 (target board TB) changes according to the advancement and retreat of the rod 364.

As shown in FIG. 5, the knob (an example of a first restricting portion) 368 is attached to one end of the rod 364 using a female thread 380b (see FIG. 6) formed on the rod 364, and functions as a handle for moving the rod 364 back and forth.
In addition, when the ball 386a of the plunger 366a and the ball 386b of the plunger 366b pass over the groove 382b and the rod 364 is further pushed (advanced), the knob 368 comes into contact with the hole forming member 322 in which the hole 328 through which the rod 364 passes is formed. In other words, the knob 368 comes into contact with the hole forming member 322 and functions as a stopper that limits the range of movement of one side of the rod 364.

The rod 364 passes through the inside of the cylindrical member (an example of a second limiting portion) 370, which is disposed between the flat washer 384 and the hole forming member 322 of the base portion 32. The outer diameter of the cylindrical member 370 is set to be larger than the hole 328, and the inner diameter is set to be larger than the outer diameter of the rod 364 and smaller than the outer diameter of the flat washer 384.
When the ball 386a of the plunger 366a and the ball 386b of the plunger 366b pass over the groove 382f and the rod 364 is further pulled out (retracted), one end face of the cylindrical member 370 comes into contact with the periphery of the hole 328 of the hole forming member 322, and the other end face comes into contact with the flat washer 384 fixed to the rod 364. In other words, the cylindrical member 370 is sandwiched between the base portion 32 and the flat washer 384, thereby functioning as a stopper that limits the movement range of the other side of the rod 364.
Instead of the flat washer 384 , any protruding portion that protrudes outward from the outer circumferential surface of the rod 364 and can contact the other end surface of the tubular member 370 may be used.

Next, the aiming operation using the support base 10 (operation of the support base 10) will be described. The aiming operation is performed according to the following steps P1 to P4. Note that steps P1 to P3 are preliminary steps for performing the aiming operation.

(Process P1)
An operator performing the aiming sets up the support stand 10 with the target board TB attached at a predetermined position in front of the vehicle.

(Process P2)
An operator raises and lowers the lifting device 20 to position the target board TB at a predetermined height.

(Process P3)
The operator loosens the nut 385 and checks that the plungers 366a, 366b are positioned in the central groove 382c (see FIG. 6) of the rod 364, and then turns the knob 368 (see FIG. 2) to adjust the angle so that the target board TB is vertical.
As the rod 364 rotates together with the knob 368, the ball joint 362 moves in a direction in which the male thread 378 extending from the ball joint 362 and the female thread 380f formed on the rod 364 tighten or loosen depending on the direction of rotation.
That is, the ball joint 362 and the rod 364 are connected to each other via screw portions formed on the ball joint 362 and the rod 364, respectively, and the ball joint 362 moves back and forth in response to the rotation of the knob 368, so that the support portion 34 rotates around the axis AX and the target board TB tilts.
The inclination of the support portion 34 is confirmed by a spirit level placed on the mounting portion formed by the connecting members 344 and 346 .
After completing the angle adjustment of the target board TB, the worker tightens the nut 385 to fix the positions of the male screw 378 and the female screw 380f and prevent the knob 368 from rotating.

(Process P4)
The worker starts the aiming operation, moves the rod 364 forward and backward according to the contents of the aiming operation, and sets the angle of the target board TB.
As mentioned above, the spacing between grooves 382f, 382c, 382b formed in rod 364 is set based on the specified angular position required for the target board TB in the aiming operation, so the angle setting can be completed simply by the operator holding knob 368 and moving rod 364 back and forth based on central groove 382c.

The support base 10 according to the present embodiment described above has excellent workability because the target board TB can be positioned simply by moving the rod 364 back and forth.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and all changes in conditions that do not depart from the gist of the invention are within the scope of application of the present invention.

The male and female screws used are not limited to those in the above-mentioned embodiment, and any corresponding screw may be used.

In addition, the position adjustment device 30 according to the above-described embodiment is not limited to being used for aiming operations. The target board TB is an example of an object supported by the position adjustment device 30, and the position adjustment device 30 can also adjust the angular position of any object supported.

Furthermore, the position adjustment device 30 excluding the mounting portion 326 can be configured so that the supported object can be tilted around an axis extending in the vertical direction instead of the axis AX depending on the application. In other words, the position adjustment device 30 excluding the mounting portion 326 can be installed in a state rotated 90 degrees to the left or 90 degrees to the right from the state shown in FIG. 1 when viewed from the front, so that the supported object can be tilted around an axis extending in the vertical direction.

10 Support stand 20 Lifting device 30 Position adjustment device 32 Base portion 34 Support portion 36 Adjustment portion 202 Leg portion 204 Support 206 Lifting portion 322 Hole forming member 324 Holding member 326 Mounting portion 328 Hole 329a, 329b Female screw 330 Rotating shaft 342a, 342b Plate-shaped member 344, 346 Connection member 362 Ball joint 364 Rod 366a, 366b Plunger 368 Knob 370 Cylindrical member 372 Ball 374 Ball receiver 376a, 376b Fixing member 380b, 380f Female screw 382b, 382c, 382f Groove 384 Flat washer 385 Nut 386a, 386b Ball TB Target board AX Axis

Claims (7)

A base portion;
A support portion that is provided on the base portion via a rotation shaft and supports the target board so as to be tilted;
and an adjustment unit that adjusts the inclination of the target board,
The adjustment unit includes a connection unit provided on the support unit,
a retractable member having one end attached to the connecting portion, a plurality of recesses formed at intervals in a longitudinal direction, and capable of retracting relative to the base portion;
a plunger fixed to the base portion and having a protrusion that fits into the recess,
A position adjustment device in which the inclination of the support part changes in response to the advancement and retreat of the advancing and retreating member. A base portion;
A support portion that is provided on the base portion via a rotation shaft and supports the target board so as to be tilted;
and an adjustment unit that adjusts the inclination of the target board,
The adjustment portion includes a universal joint provided on the support portion;
a rod connected to the universal joint, the rod having a plurality of recesses formed therein at intervals in a longitudinal direction, the rod being movable forward and backward relative to the base portion;
a plunger fixed to the base portion and having a protrusion that fits into the recess. 2. The position adjustment device according to claim 1,
A position adjustment device in which the connecting portion and the advancing/retracting member are connected to each other via threaded portions formed on the connecting portion and the advancing/retracting member, respectively. 4. The position adjustment device according to claim 3,
A first limiting portion that limits a movement range on one side of the advancing and retreating member;
A second limiting portion that limits the movement range of the other side of the forward/backward member,
A position adjustment device, wherein the first limiting portion is a knob provided on the other end of the advance/retract member. 5. The position adjustment device according to claim 4,
A position adjustment device, wherein the second limiting portion is a cylindrical member through which the advancing/retracting member passes and which is disposed between the base portion and a protruding portion that protrudes outward beyond the outer circumferential surface of the advancing/retracting member . 5. The position adjustment device according to claim 4,
A position adjustment device in which the base portion has an attachment portion that can be hooked onto a lifting device that moves up and down. A position adjustment device according to any one of claims 1 to 5,
and a lifting device that lifts and lowers the position adjustment device.