JP3012502B2 - Adjuster device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjuster attached to a device with casters, such as a movable table and a transporting device, for preventing the device from moving.

[0002]

2. Description of the Related Art Conventionally, some equipment such as a conference table, office equipment, and a work table are provided with casters for convenience in transportation. An adjuster device is attached to these caster-equipped equipment because it is necessary to securely fix the equipment to the floor when the equipment is used. As such an adjuster device, there is known an adjuster device in which screw shafts extending in a vertical direction are screwed to corners of a footrest of equipment or the like, a grounding body is provided at a lower end of each screw shaft, and a knob is fixed to an upper end. Have been. Then, by pinching the knob and rotating the screw shaft with a fingertip, or by rotating the screw shaft using a tool, the adjuster length is adjusted to securely fix the equipment or the like to the floor surface. Fixed release.

[0003] A pedal-type locking device is known as a device that allows a carrier having a caster attached to a footrest to be switched between a fixed position and a movable position.

[0004]

However, in the case of the former adjuster device using a screw shaft, the screw must be operated in a state where it is crouched by using a tool or the like each time when fixing the equipment or the like. However, not only is it troublesome, but also in order to fix a heavy table, it is necessary to lift the table and adjust the length of the adjuster.

In the latter type of the pedal-type locking device,
It is easy to switch between the fixed position and the movable position by pressing the pedal, but the position that can be fixed is fixed because it does not have an adjuster function, and it can not be fixed at any position and it is delicate The height could not be adjusted. For this reason, there has been a problem that secure fixing cannot be performed on a floor having irregularities.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to make it possible to perform an operation of switching between a fixed position and a movable position by a simple operation, and to set an arbitrary adjuster length. An object of the present invention is to provide an adjuster device that can securely fix equipment and the like to a floor surface.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a support leg provided to be vertically movable with respect to a device, and the support leg is urged upward. An elastic member to be pivoted, a lever member pivotally supported on the device to push down the support leg downward against the elastic force of the elastic member, and allow the support leg to move downward. On the other hand, there is provided locking means for preventing the upward movement of the support leg, and lock release means for releasing the locking state of the support leg by the locking means based on an external force, wherein the locking means is provided on the support leg. consists laterally against an abutment engageable locking member, and biasing means for biasing the Dokakaritome member so Dokakaritome member is constantly pressed against the supporting leg, the Leverage
The members are a pedal plate for pushing down the support legs and a pedal.
And a rotating shaft that rotatably supports the dull plate.
In both cases, the pedal plate is turned at the outer end of the pedal plate.
Pedal is provided, and a pedal plate is
The invention is characterized in that an unlocking means is provided at the inner end of the.

[0008]

[0009]

[0010] What follow, in the first aspect of the present invention, when pushing down the support legs by not been come member against the elastic force of the elastic member downward, the support leg is grounded on the floor surface or the like. Then, with the contact point between the lever member and the support leg as a fulcrum, all the pressing force of the lever member is converted into a force for lifting the equipment, and the equipment can be easily lifted. After the equipment is lifted, the equipment is fixed at an arbitrary position by locking the support legs at an arbitrary height position by a locking means. At this time, the upward movement of the support leg is prevented by the locking means.

Further, the support leg is locked by the locking member when moving upward, an external force is applied to the locking release means
In Rukoto, the locked state is released of engagement means relative to the support legs
Re that.

Further, by pushing down the pedal plate of the lever member about the rotation axis, the equipment can be lifted and the support legs can be locked, and by rotating the pedal plate upward, the support legs can be locked. Can be canceled.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) A first embodiment in which the present invention is embodied in a table with casters will be described with reference to FIGS.

As shown in FIG. 1, a table 1 is
And a column 3 protruding downward from the top plate 2, and a footrest 4 provided at the lower end of the column 3.
A caster 5 and an adjuster device 6 are attached to the corners of the footrest 4, respectively.

As shown in FIG. 2, the casters 5 are mounted on the lower surfaces of the corners of the footrests 4 slightly inside. A roller 7 is rotatably supported on the caster 5, and the footrest 4 is supported on the floor 8 by the roller 7.

The corner of the footrest 4 has a hollow inside, and a lock member 9 having a U-shaped cross section is attached to the lower surface thereof. Holes 10 and 11 are provided coaxially in the footrest 4 and the lock member 9, and a slide shaft 12 as a support leg is provided so as to be vertically movable through the holes 10 and 11. I have.

The slide shaft 12 has a cylindrical shape, and an elastic grounding body 13 is attached to a lower end thereof, and a cap portion 14 is formed at an upper end thereof. A compression spring 15 is provided between the lower surface of the cap portion 14 and the upper surface of the lock member 9.
Is provided, and always biases the slide shaft 12 upward.

In the internal space of the lock member 9, there are provided two hook plates 16 each having a U-shaped cross section as locking means and locking members. A hole 17 having a diameter slightly larger than the diameter of the slide shaft 12 is provided through the key plate 16, and the slide shaft 12 is loosely fitted in the hole 17. A lock plate receiver 19 having a groove 18 is provided on the inner surface of the lock member 9, and the base end of the key plate 16 is inserted into the groove 18. A compression spring 20 is disposed on the peripheral surface of the slide shaft 12 and between the lower surface of the hook plate 16 and the inner surface of the lock member 9, and constantly biases the hook plate 16 upward. Here, the base of the key board 16 has a groove 1 of a key board receiver 19.
Since the distal end side is urged obliquely upward by the compression spring 20 in the state of being inserted in the slide shaft 8, the slide shaft 12 is locked by the corner 21 of the hole 17 provided in the key plate 16. I have. That is, in this configuration, the slide shaft 1
When the slide shaft 12 is moved downward, the hook plate 16 is also pushed down at the same time, so that the lock between the peripheral surface of the slide shaft 12 and the corner 21 is easily released. Since the pressing member 21 is always in pressure contact with the peripheral surface of the slide shaft 12, the upward movement of the slide shaft 12 is prevented by the frictional force associated with the pressing. In this manner, the downward movement of the slide shaft 12 is allowed, and the upward movement is prevented.

As shown in FIGS. 2 and 3, a pedal bearing 23 is protruded from the slide shaft 12 in the hollow portion 22 of the footrest 4 slightly inside, and the lever 23 serves as a lever member. A pedal shaft 24 is inserted, and a pedal plate 25 as a lever-shaped lever member is connected to the pedal shaft 24 so as to be integrally rotatable. As a result, the pedal plate 25 can reciprocate up and down around the pedal shaft 24.

At the outer end of the pedal plate 25, a pedal plate 25
A pedal 26 for rotating the pedal is provided, and a foot can be put on the pedal 26 and the pedal 26 can be depressed or kicked up. An unlocking pin 27 is provided at an inner end of the pedal plate 25. This pin 27
When the pedal 26 is kicked up and the pedal plate 25 rotates counterclockwise about the pedal shaft 24, the tip of the key plate 16 passes through a U-shaped groove 35 provided in the lock member 9. It comes into contact with the upper surface. That is, when the pedal 26 is kicked up, the hook plate 16 is pushed down via the pin 27 against the spring force of the compression spring 20, and the engagement between the slide shaft 12 and the corner portion 21 of the hole 17 of the hook plate 16 is established. It is to be released. The disengaged slide shaft 12 is moved upward by the compression spring 15. In this way, the table 1 locked at the fixed position is moved downward by its own weight, and when the casters 5 touch the floor 8, the table 1 is in a movable state.

The pedal plate 25 and the lock member 9
A compression spring 28 is disposed so as to surround the lock release pin 27, so that the lock release pin 27 moves downward due to slight shaking of the table 1 or the like so that it does not act on the key plate 16. I have.

Next, the operation of the adjuster of this embodiment will be described with reference to FIGS. FIG.
As shown in (1), when the table 1 is moved, the slide shaft 12 is retracted to the upper position. In this state, the roller 7 of the caster 5 is rotated to move the table 1 to a desired position.

When the table 1 is moved to a desired position and is fixed so as not to be movable, the slide shaft is pressed against the spring force of the compression spring 15 by stepping on the pedal 26 as shown in FIG. Press 12 down. At this time, a large force is not required until the grounding body 13 touches the floor 8, but a little force is required to lift the table 1 after the grounding body 13 touches the floor 8. . However, in this embodiment, since the lever principle is used, the table 1 can be easily lifted only by depressing the pedal 26. That is, from the point when the slide shaft 12 is pushed down and the grounding body 13 touches the floor 8, this principle works, and the position of the pedal 26 is set with the contact point between the pedal plate 25 and the cap 14 of the slide shaft 12 as a fulcrum. The point of force is applied, and the position of the pedal shaft 24 and the pedal bearing 23 is the point of application of the force. Therefore, the force that depresses the pedal 26 is converted into a force that lifts the table 1 upward.

After the table 1 is lifted in this manner, the table 1 is fixed at a desired height by the amount of depression of the pedal 26. The fixing of the table 1 is realized by frictional engagement between the peripheral surface of the slide shaft 12 and the corner 21 of the hole 17 of the key plate 16. In this way, the table 1 is immovably fixed.

[0025] Now, when releasing the fixing table 1 is rotated in the counterclockwise direction the pedal plate 25 is raised kick pedal 2 6 upward around the pedal shaft 24 as shown in FIG. Then, the unlocking pin 27 provided at the inner end of the pedal plate 25 is pushed down against the spring force of the compression spring 28. At this time, the tip of the lock release pin 27 abuts on the upper surface of the tip of the hook plate 16 and the
Is pressed down against the spring force of the compression spring 20, so that the corner 21 of the hole 17 of the
Is released from the locked state. As a result, the slide shaft 12 by the action of the compression spring 15 to move upward, the movement of Serare table 1 downward by its own weight, casters 5
Touches the floor 8 and the table 1 returns to a movable state as shown in FIG.

With this configuration, in the present embodiment, the pedal 26 can be depressed, the table 1 can be lifted with a small force and fixed immovably by applying the leverage principle, and the pedal 26 can be kicked up. Since the table 1 can be moved by releasing the fixing, the operation becomes extremely simple as compared with the conventional screw type adjuster. In addition, in order to avoid the danger that the fixed state of the table 1 is released by unintentionally putting a foot on the pedal 26, in this embodiment, the pedal 26 is kicked up and the table 1 is lifted.
The structure to release the fixation was adopted.

Further, since the unlocking pin 27 serving as unlocking means to the pedal plate 25 is provided integrally, it is possible to make the structure compact ones. Furthermore, since the peripheral surface of the slide shaft 12 is frictionally locked at the corners 21 of the hole 17 provided in the hook 16, the slide shaft 12 is fixed at an arbitrary position, that is, the slide shaft 1.
Since the length of the adjuster 2 can be arbitrarily adjusted and fixed, the table 1 can be reliably fixed at an arbitrary height even on the uneven floor surface 8.

[0028] In addition, since the compression spring 28 is disposed between the unlocking pins 27 and the locking portion fitting 19, to unlock pin 27 Gakagi plate 16 with some shaking table 1 such Does not work. Therefore, there is little possibility that the fixed state is accidentally released. Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described according to.

Here, the same members as those in the first embodiment are denoted by the same reference numerals, and will not be described repeatedly. In the present embodiment, the caster 5 and the adjuster device 6 have an integrated configuration.

As shown in FIG. 7 and FIG.
Is a substantially cylindrical mounting portion 29 that is mounted and fixed to the lower surface of the lock member 9, a roller mounting portion 30 that is inserted through and supported by the mounting portion 29, and the roller mounting portion 30 is mounted on the mounting portion 2.
A stopper 31 screwed to the lower end of the mounting portion 29 so as not to fall off from the roller 9;
And two rollers 33 that are rotatably mounted through the rollers. The mounting portion 29 is provided with a hole 34 for vertically moving the penetrating slide shaft 12. In this caster 5, the slide shaft 12 is interposed between the rollers 33 as shown in FIG.

Next, the operation of the present embodiment will be described. Also in this embodiment, similarly to the operation in the first embodiment, the table 1 can be fixed at an arbitrary height or made movable by depressing or kicking up the pedal 26.

In the present embodiment, since the caster 5 and the adjuster device 6 are integrated, the configuration can be made compact. The present invention may be embodied as follows. (1) In the first and second embodiments, the slide shaft 12
To increase the friction coefficient of the peripheral surface by roughening the peripheral surface or providing a number of knurled grooves on the peripheral surface.

With such a configuration, the hole 1
The locking state between the corner portion 21 of 7 and the slide shaft 12 is further ensured. (2) In the first and second embodiments, the slide shaft 12
A large number of triangular grooves for engaging with the corners 21 of the holes 17 of the key board 16 are provided on the peripheral surface of the key plate 16 in the axial direction.

With such a configuration, the downward movement of the slide shaft 12 is allowed, while the upward movement is
It is surely prevented by the engagement between 1 and the triangular groove. (3) In the first and second embodiments, the slide shaft 12
Use other means as the locking means, for example, a tightening member that allows downward movement and prevents upward movement.

With this configuration, the slide shaft 12 is locked by the fastening action of the fastening member. (4) In the first and second embodiments, changing the number of the key boards 16 to another number. (5) In the first and second embodiments, the casters 5 are omitted, and the adjuster device 6 is used only to prevent the table 1 from rattling due to unevenness of the floor surface 8.

With this configuration, the configuration of the table 1 can be simplified. (6) In the first and second embodiments, the adjuster device 6 may be embodied as a device other than the table 1, for example, a device on which casters are mounted on office equipment, a work table, or the like.

Next, technical ideas other than the claims ascertained from the embodiment will be described below together with their effects . (1) In the adjuster device according to claim 1, engaging
The stop member is a member having a corner, and the corner is on the side of the support leg.
Adjuster device that can be abutted against

[0038]

[0039]

With this configuration, the support leg is securely locked by the corner. ( 2 ) The adjuster device according to claim 1 , wherein the unlocking means comprises an unlocking member and an urging means for urging the unlocking member in a direction opposite to the unlocking direction. .

With this configuration, the unlocking member is urged in the direction opposite to the unlocking direction by the urging force of the urging means. The fixed state of the equipment is not accidentally released.

[0042]

According to the first aspect of the present invention, since the equipment can be easily lifted by using the lever member, no troublesome work is required as compared with the conventional adjuster device using the screw shaft. The operation becomes extremely easy.

Further, after the equipment is lifted, the support legs can be locked by the locking means at an arbitrary height and the equipment can be fixed at an arbitrary position, so that the equipment can be fixed on an uneven floor surface or the like. However, the equipment can be securely fixed.

[0044] Further, since the locking member is adapted to be constantly pressed from the side relative to the support leg by urging means,
The support leg can be locked from the side by the urging force of the urging means, and the upward movement can be reliably prevented.

Further , since the locked state of the support leg by the locking means is released based on the external force, the locked state is not released unless an external force acts.

In addition, with a simple operation of pushing down the pedal plate of the lever member downward, the equipment and the like can be easily lifted with a small force using the leverage force and the support legs can be locked. Also, the support plate can be unlocked by rotating the pedal plate upward. Therefore, the structure of the lever member
Configuration and operation are simplified.

[Brief description of the drawings]

FIG. 1 is a front view of a table with casters embodying the present invention.

FIG. 2 is a longitudinal sectional view of a main part of the adjuster device of the first embodiment.

FIG. 3 is a side view of the adjuster device of the first embodiment.

FIG. 4 is a plan view of the adjuster device of the first embodiment.

FIG. 5 is an essential part longitudinal cross sectional view showing a state when the slide shaft is depressed by depressing the pedal in the first embodiment.

FIG. 6 is a longitudinal sectional view showing a state in which the locked state of the slide shaft is released by kicking up the pedal in the first embodiment.
Area view .

FIG. 7 is a longitudinal sectional view of a main part of an adjuster device according to a second embodiment.

FIG. 8 is a side view of the adjuster device according to the second embodiment.

[Explanation of symbols]

6 Adjuster device, 12 Slide shaft as support leg, 15 Compression spring as elastic member, 16 Key plate as locking member, 20 Compression spring as urging means, 2
1 ... Corner, 24 ... Pedal shaft as lever member, 25 ... Pedal plate as lever member, 27 ... Lock release pin as lock release means.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-269910 (JP, A) JP-A-62-11002 (JP, U) JP-A-1-131337 (JP, U) JP-A-2-131 51904 (JP, U) Japanese Utility Model 4-56044 (JP, U) Japanese Utility Model 2-25996 (JP, Y2) Japanese Utility Model 57-56751 (JP, Y2) Japanese Utility Model Utility Model 55-19687 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60B 33/00-33/06 A47B 91/00-91/02

Claims (1)

(57) [Claims] A support leg provided to be movable in a vertical direction with respect to the equipment, an elastic member for urging the support leg upward, and the support leg rotatably supported on the equipment. A lever member for pressing down against the elastic force of the elastic member, locking means for allowing the support legs to move downward while preventing the support legs from moving upward, and A lock releasing means for releasing a locked state of the support leg by the locking means based on the locking means, wherein the locking means is capable of abuttingly locking the support leg from a side, and the locking member And a biasing means for biasing the locking member so as to be constantly pressed against the support leg, wherein the lever member presses the support leg downward.
It consists of a plate and a pivot shaft that supports the pedal plate so that it can rotate.
And a pedal plate is provided at the outer end of the pedal plate.
A pedal for turning operation is provided, and the pedal is
An adjuster device provided with an unlocking means at an inner end of a pedal plate .