JPH0893733A - Positioning fixing device - Google Patents

Abstract

PURPOSE: To simply, safely and reliably perform a height adjustment or the like of a slide hanger or the like by anybody. CONSTITUTION: A rod 13 is passed through a cylindrical base member 20, and a pair of lock plates 25 and 26 are supported inside of the base member 20 so as to be adjacent to each other and tiltable in the inverse direction, and edge parts 52, 53, 54 and 55 of holes 50 and 51 of the lock plates 25 and 26 are brought into contact with an outer peripheral surface of the rod 13. A spring 30 is arranged in a compressed condition between the lock plates 25 and 26. A cam member 31 is rotatably arranged between the lock plates 25 and 26. The cam member 31 is operated by an operation part 32, and has a cam surface 83 by which the lock plates 25 and 26 can be displaced one side by one side to a lock release mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can be applied to a display-related device for displaying products such as clothes, and various axial structures such as various columnar structures and a joint clamp mechanism of a telescopic tube. The present invention relates to a positioning and fixing device for fixing a rod and a base member at a desired relative position, which has a base member movably fitted to an extending rod.

[0002]

2. Description of the Related Art For example, a slide hanger used for displaying and storing products such as clothes needs to have its height changed according to the length (length) of the displayed products. In particular, in special exhibition areas such as department stores, since a large number of products are displayed, the number of slide hangers also increases, and the period from setting up to cleaning up is short, so it is desirable to minimize the work time. .

For example, in a conventional slide hanger 1 shown in FIG. 13, a small-diameter movable-side pipe 3 is vertically slidably inserted into a fixed-side pipe 2 fixed to a leg 1a of the hanger. A hanger portion 4 for hanging clothes is connected to the. A nut portion 5 is fixed near the upper end of the fixed-side pipe 2 in the radial direction of the pipe 2, and a bolt 6 screwed into the nut portion 5
The movable pipe 3 is fixed at a predetermined height.

[0004]

In the conventional slide hanger 1 described above, since the movable side pipe 3 becomes free by loosening the bolt 6, the hanger portion 4 is held with one hand after the height adjustment. , The bolts 6 of each fixed side pipe 2 must be tightened. In that case, depending on the length and height of the hanger part 4, the hand may not reach the bolt 6, and it becomes difficult to adjust the height by one person, so the size of the hanger 1 is restricted. For this reason, a large number of hangers 1 are required, and when a large number of clothes of various sizes are displayed, the number of hangers becomes large, which may require a great deal of labor and time for setting up and cleaning up.

If the fixing bolt 6 is not securely tightened, when the product is hung on the hanger part 4, the weight of the hanger part 4 may cause the hanger part to slip off and stain the product, which is also dangerous. . Moreover, the tightening force of the fixing bolt 6 varies depending on the operator, and there is also a problem that it is difficult to obtain an appropriate tightening force.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a positioning and fixing device which enables anyone to easily, surely and safely adjust the height of a slide hanger or the like.

[0007]

A positioning and fixing device of the present invention developed to achieve the above object has a rod extending in the axial direction and a fitting hole through which the rod is inserted, and is provided with respect to the rod. It has a cylindrical base member that is relatively movable in the axial direction, and a hole that is supported inside the base member so as to be tiltable in the axial direction of the base member and that allows the rod to pass through. A first lock plate that is capable of contacting the outer peripheral surface of the base member, and a hole that is supported inside the base member so as to be adjacent to the first lock plate so as to incline toward the opposite side and through which the rod passes. The lever is provided in a compressed state between a second lock plate capable of contacting the edge portion of the lever hole with the outer peripheral surface of the rod and the first lock plate and the second lock plate. And is rotatable between a spring for biasing each of the lock plates in a direction to press the edge portion of each lock plate against the outer peripheral surface of the rod and the first lock plate and the second lock plate. And a cam member capable of displacing the lock plate in a direction to release the bite of the edge portion with respect to the rod, and an operation connected to the cam member and arranged outside the base member. And a section.

[0008]

When the edge portion of the first lock plate is in contact with the outer peripheral surface of the rod (called lock mode),
When the rod tries to move in the direction in which the first lock plate further tilts, the edge portion of the lock plate bites the rod, thereby preventing the rod from moving in this direction (first direction). When the rod is about to move in the opposite direction, the edge is disengaged from the rod, so that the edge can slide on the rod outer peripheral surface. Therefore, in this direction (second direction), the first lock plate is free. If the cam member displaces the lock plate in a direction (lock release mode) in which the edge of the first lock plate is disengaged from the rod, the first lock plate moves in both directions with respect to the rod. Be free.

On the other hand, in the second lock plate, when the edge portion of the lock plate is in contact with the outer peripheral surface of the rod (referred to as lock mode), the rod moves in the direction in which the second lock plate further tilts. In this case, the edge portion of the lock plate bites the rod to prevent the rod from moving in this direction (second direction). When the rod is about to move in the opposite direction, the edge is disengaged from the rod, so that the edge can slide on the rod outer peripheral surface. Therefore, in this direction (first direction), the second lock plate becomes free. Further, if the cam plate displaces the lock plate in a direction (lock release mode) in which the edge of the second lock plate is disengaged from the rod, the second lock plate also moves in both directions relative to the rod. Be free.

That is, the first lock plate functions to prevent the rod from moving in the first direction, and the second lock plate moves the rod in the second direction (reverse direction). Fulfill the function of blocking. Therefore, if both lock plates are in the lock mode, the rod cannot move in either direction, and the lock is bidirectional. Further, if both the lock plates are set in the lock release mode by the cam member, the rod can freely move in both directions.

If the second lock plate is set to the unlock mode while the first lock plate is set to the lock mode, the rod is locked only in the first direction. In that case, the rod can move in the second direction, but when the rod moves in the second direction, a frictional force acts between the edge portion of the first lock plate and the rod, so that the rod moves abruptly. Is blocked. For this reason, even if the rod tries to drop due to its own weight or the like for some reason, a sudden drop is avoided, which is safe.

If the first lock plate is set to the unlock mode while the second lock plate is set to the lock mode, the rod is locked only in the second direction. The lock mode and the lock release mode described above can be performed by rotating the cam member by the operation portion and switching the position of the first or second lock plate.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to FIG. The slide hanger 10 for product display shown in FIG. 3 has a stand 12 having a vertically extending pipe post 11 and a rod 13 vertically movable with respect to the post 11. Rod 1
3 can be fixed to a desired height by a positioning and fixing device 15. A hanger portion 16 that extends in the horizontal direction is provided on the upper portion of the rod 13, and a product 17 to be displayed can be hung on the hanger portion 16.

The positioning and fixing device 15 includes a rod 13 made of a metal round pipe, a cylindrical base member 20 fixed to the upper end of the support column 11, and a pair of lock plates 25 and 26 housed in the base member 20. And the lock plate 2
A coil spring 30, a cam member 31, a lever-like operation portion 32, and the like provided between the Nos. 5 and 26 are provided.

The base member 20 is an integrally molded product of synthetic resin or metal and has a substantially cylindrical shape, and a box-shaped pedestal portion 35 protruding in the radial direction of the base member 20 is provided on one side thereof. Has been. The base member 20 is provided with a fitting hole 36 having an inner diameter through which the rod 13 can be inserted. The fitting hole 36 penetrates the base member 20 in the vertical direction and opens at both ends of the base member 20.

On the side surface of the base member 20, the pedestal portion 35 is provided.
An opening 40 is formed at a position facing each other. The opening 40 has a size such that the lock plates 25 and 26 and the coil spring 30 can be put in and taken out, and the opening 40 is closed by a semi-cylindrical lid 41. Protrusions 42 that face inward are provided on both sides of the lid 41. By fitting the protrusions 42 into the recesses 43 of the base member 20, the lid 41 can be fixed to the base member 20. ing.

The lock plates 25 and 26 are provided adjacent to each other in the axial direction (vertical direction) of the base member 20. Each of the lock plates 25, 26 is made of a wear-resistant material having high rigidity such as a metal plate, and is formed in a ring shape. That is, the circular hole 5 into which the rod 13 can be inserted is inserted into the central portion of the lock plates 25 and 26.
0, 51 are provided. The inner diameter of the holes 50, 51 is slightly larger than the outer diameter of the rod 13, and the rod 13 is
The lock plates 25,
26 can be tilted in opposite directions to each other by a slight angle in the axial direction of the base member 20.

When the lock plates 25 and 26 are inclined, the edge portions 52 and 53 of the holes 50 and 51,
54 and 55 are allowed to contact the outer peripheral surface of the rod 13. Further, gaps 62 and 63 are ensured between the inner end surfaces 60 and 61 of the base member 20 and the lock plates 25 and 26 even if the lock plates 25 and 26 are tilted to the maximum.

Extension portions 70 and 71 are provided on one end sides of the lock plates 25 and 26. This extension 70,71
Enter the recess 72 inside the pedestal portion 35. The first lock plate 25 has the upper wall 7 of the recess 72.
It is supported by 3 so as to be tiltable in the axial direction of the base member 20. The second lock plate 26 is inclined to the side opposite to the first lock plate 25, and the lower wall 7 of the recess 72 is
It is supported by 4 so that it can be tilted.

A coil spring 30 is provided between the first lock plate 25 and the second lock plate 26 in a compressed state. Inside the spring 30, the rod 13
Is passing. This spring 30 includes a lock plate 25,
The edge portions 52, 53, 54, 55 of 26 are urged in a direction of pressing the rod 13.

A cam member 31 is rotatably provided between the first lock plate 25 and the second lock plate 26. The shaft portion 81 of the cam member 31 projects outward through a hole 82 provided in the pedestal portion 35. The cam member 31 has a cam surface 83 that can alternately displace the lock plates 25 and 26 into the unlock mode shown in FIGS. 6 and 8. That is, in this embodiment, the cam surface 83 projects to one side of the cam member 31.

The operating portion 32 is connected to the shaft portion 81 of the cam member 31. The operation portion 32 is arranged outside the base member 20, and is fixed to the shaft portion 81 by an appropriate rotation stopping means such as a pin 86. In the case of this embodiment, the pedestal portion 35 has a rotation range of the operation portion 32 in the left and right directions.
Stoppers 90 and 91 are provided for restricting each 0 °. When the operating portion 32 faces downward as shown in FIGS. 4 and 5, both the lock plates 25 and 26 are in the lock mode described above, and when the operating portion 32 is rotated 90 ° as shown in FIGS. When the cam surface 83 pushes the second lock plate 26, only the second lock plate 26 enters the lock release mode described above, and the operation portion 32 rotates 90 ° to the opposite side as shown in FIGS. When the cam surface 83 pushes the first lock plate 25,
Only the first lock plate 25 is in the lock release mode described above.

However, the stopper portions 90 and 91 are not essential, and the operation portion 32 may be rotated by 360 °. In that case, the lock mode and the lock release mode described above are alternately repeated as the operation unit 32 is rotated.

Next, the operation of the positioning and fixing device 15 having the above structure will be described. In the first lock plate 25, the rod 13 is moved in a direction in which the first lock plate 25 is further inclined (direction of arrow A in FIG. 4) in a state where the edge portions 52 and 53 are in contact with the outer peripheral surface of the rod 13. When a force to do so is applied, the edge portions 52 and 53 bite into the rod 13, so that the rod 13 cannot move in the A direction.

On the contrary, when a force for moving the rod 13 in the direction of the arrow B is applied, the edge portion 5 with respect to the rod 13
The bite of 2, 53 is released, and the edge portions 52, 53 slide on the outer peripheral surface of the rod 13. Therefore, the first lock plate 25 is always free in the B direction.

Further, as shown in FIG. 8, when the cam member 31 displaces the first lock plate 25 to a position substantially perpendicular to the rod 13, the edge portions 52 and 53 bite against the rod 13. Is in a disengaged state (referred to as an unlock mode).

On the other hand, in the second lock plate 26, when the edge portions 54 and 55 are in contact with the outer peripheral surface of the rod 13, the direction in which the second lock plate 26 is further inclined (the direction of arrow B in FIG. 4). ), A force for moving the rod 13 is applied to the edge portions 54 and 55,
Therefore, the rod 13 cannot move in the B direction.

On the contrary, when a force is applied to move the rod 13 in the direction of arrow A, the edge portions 54 and 55 are disengaged from the rod 13 and the edge portions 54 and 55 are removed.
Slides on the outer peripheral surface of the rod 13. Therefore, the second lock plate 26 is always free in the A direction.

As shown in FIG. 6, when the cam member 31 displaces the second lock plate 26 in a posture substantially perpendicular to the rod 13, the edge portions 54 and 55 are disengaged from the rod 13. Is turned on (lock release mode).

That is, the first lock plate 25 has a function of blocking the movement of the rod 13 in the A direction, and the second lock plate 26 has a function of blocking the movement of the rod 13 in the B direction. Fulfill. Therefore, if both the lock plates 25 and 26 are in the lock mode, the rod 13 cannot move in either direction, and the lock is bidirectional. Further, if both the lock plates 25 and 26 are set to the unlock mode by the cam member 31 as in the second embodiment described later, the rod 13 can freely move in both directions.

When the first lock plate 25 is in the lock mode and the second lock plate 26 is in the unlock mode as shown in FIG. 6, the rod 13 is locked only in the A direction. In that case, the rod 13 can move in the B direction, but when moving in the B direction, the first lock plate 25
Since a frictional force acts between the edge portions 52 and 53 of the rod 13 and the rod 13, the rod 13 is prevented from moving abruptly. Therefore, even if the rod 13 tries to drop due to its own weight or the like when the second lock plate 26 is in the unlocked mode, it is possible to avoid a sudden drop of the rod 13 and it is safe.

Contrary to the above, when the first lock plate 25 is in the unlock mode and the second lock plate 26 is in the lock mode, as shown in FIG.
3 is locked only in the B direction and can move in the A direction.

The switching between the lock mode and the lock release mode described above can be performed by rotating the cam member 31 with the operation portion 32. For example, the operation unit 32 is shown in FIG.
When the rod 13 is inserted from above the base member 20 in the bidirectional lock mode as described above, the lower end of the rod 13 comes into contact with the first lock plate 25, and at the same time, the spring 30 is compressed and the hole of the first lock plate 25 is compressed. The rod 13 is inserted into 50. Next, the rod 13 is inserted into the hole 51 of the second lock plate 26 by setting the operation portion 32 in the B direction free mode shown in FIG.

When the operating portion 32 is returned to the neutral position (angle 0 °) shown in FIGS. 4 and 5, the elastic force of the spring 30 causes the edge portions 52, 53, 54 and 5 of the lock plates 25 and 26 to move.
The rod 13 is fixed by the bit 5 biting the rod 13.

In the above-mentioned assembled state, the operating portion 32 is rotated 90 ° as shown in FIGS. 6 and 7, and the extension portion 71 of the second lock plate 26 is pushed by the cam surface 83. The edge portions 54 and 55 that have been bitten by 13 are displaced in the direction away from the rod 13,
Since the rod 13 is free in the B direction, the height can be adjusted while lowering the rod 13.

As shown in FIGS. 8 and 9, by rotating the operating portion 32 by 90 ° in the opposite direction, the extension portion 70 of the first lock plate 25 is pushed by the cam surface 83 to lock the first lock plate 25. When you switch to release mode,
Since the rod 13 is free in the A direction, the rod 1
It is possible to adjust the height while raising 3. Then, when the operating portion 32 is returned to the original position (the state shown in FIG. 4), the rod 13 is locked again by the lock plates 25 and 26 in both directions A and B.

10 to 12 show a second embodiment of the present invention. The positioning and fixing device 15 of the second embodiment is the same as that of the first embodiment except the shape of the cam member 31. That is, the cam member 31 of the second embodiment is provided with the two cam surfaces 95 and 96 protruding in the symmetrical position, and the first lock plate 25 and the second lock plate 26 are simultaneously locked in the lock mode. Alternatively, it can be moved to the unlock mode.

Therefore, in the case of the second embodiment, the operating portion 32
Is rotated 90 ° to the right or left from the state shown in FIGS. 11 and 12 (bidirectional lock mode), the two lock plates 2
Since 5 and 26 are simultaneously in the unlock mode, the rod 13 is free in both A and B directions. And the operation unit 32
Is returned to the original position, the lock plates 25 and 26 simultaneously return to the lock mode, so that the rod 13 is locked in both the A and B directions.

[0039]

According to the positioning and fixing device of the present invention, the rod can be locked and unlocked with respect to the base member quickly and easily by a simple operation of rotating the operating portion. The relative position with respect to (e.g., height adjustment) can be easily performed, and it is safe. Due to such excellent operability, even when a large number of slide hangers are installed, it is possible to reduce the number of man-hours for setting up and cleaning up. Further, the rod and the base member can be fixed with a constant holding force at all times, and it is possible to avoid variations in the tightening force by the operator.
Moreover, this positioning and fixing device can lock the rod in only one direction, if necessary.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a positioning and fixing device showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a part of the positioning and fixing device shown in FIG.

FIG. 3 is a perspective view showing a usage mode of the positioning and fixing device shown in FIG. 1.

4 is a vertical cross-sectional view of the positioning and fixing device shown in FIG.

5 is a cross-sectional view taken along the line aa in FIG.

6 is a longitudinal sectional view of the positioning and fixing device shown in FIG. 1 when the first lock plate is in a lock mode.

7 is a cross-sectional view taken along the line bb in FIG.

FIG. 8 is a vertical cross-sectional view of the positioning and fixing device shown in FIG. 1 when the second lock plate is in the lock mode.

9 is a sectional view taken along the line cc in FIG.

FIG. 10 is an exploded perspective view of a positioning and fixing device showing a second embodiment of the present invention.

11 is a vertical cross-sectional view of the positioning and fixing device shown in FIG.

12 is a cross-sectional view taken along the line dd in FIG.

FIG. 13 is a perspective view showing a conventional slide hanger.

[Explanation of symbols]

10 ... Slide hanger 13 ... Rod 15 ... Positioning and fixing device 20 ... Base member 25 ... First lock plate 26 ... Second lock plate 30 ... Spring 31 ... Cam member 32 ... Operating part 36 ... Fitting holes 50, 51 ... Holes 52, 53 ... Edge portion 54, 55 ... Edge portion 83 ... Cam surface

Claims (3)

[Claims] 1. A rod-shaped base member extending in the axial direction, a cylindrical base member having a fitting hole for inserting the rod therein and relatively movable in the axial direction with respect to the rod, and a base member inside the base member. A first lock plate that is supported so as to be tiltable in the axial direction and has a hole through which the rod passes, and the edge portion of this hole is in contact with the outer peripheral surface of the rod; and inside the base member, A second lock plate which is adjacent to the first lock plate and is supported so as to incline to the opposite side, and has a hole through which the rod passes, and an edge portion of the hole can contact the outer peripheral surface of the rod. And a direction in which the edge portion of each lock plate is pressed against the outer peripheral surface of the rod and is provided in a compressed state between the first lock plate and the second lock plate. Is rotatably provided between a spring for urging each lock plate and the first lock plate and the second lock plate, and is configured to release the bite of the edge portion with respect to the rod. A positioning and fixing device comprising: a cam member capable of displacing a lock plate; and an operating portion connected to the cam member and arranged outside the base member. 2. The cam member has a cam surface capable of displacing the first lock plate and the second lock plate one by one in an unlocking direction. The positioning and fixing device described. 3. The cam member has a cam surface capable of simultaneously displacing the first lock plate and the second lock plate in an unlocking direction. Positioning and fixing device.