JP2000343904A - Caster with adjuster for furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a caster capable of adjusting a height and a level of furniture at a set position of the furniture. SOLUTION: In this caster, an adjuster 15 is installed to a lower part of a jack bolt 10 with the jack bolt 10 screwed in through a threaded hole 6 of a boss 5 in a tip part of a body bracket 1, while a turn bracket 20 is provided to the boss 5 functioning as a shaft of the turn bracket 20. A caster bracket 25 is longitudinally turnably journalled to a tip part of the turn bracket 20 eccentric from the boss 5 by a prescribed angle with a link pin 24. A wheel 30 is journalled to a tip part of the caster bracket 25, while a base end part of the caster bracket 25 is longitudinally turnably connected to the adjuster 15. Thereby, when the jack bolt 10 is rotated with a tool through an operation hole 44 of furniture 40 on the caster, the wheel 30 and the adjuster 15 recoil and vertically move with the link pin 24 as a fulcrum to allow adjustment to both a movable state and a set state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caster mounted on the lower surface of furniture to facilitate movement of the furniture.

[0002]

2. Description of the Related Art Conventionally, a caster composed of wheels freely turning around an axis at a predetermined angle with respect to a wheel axis can change the direction of an attached moving object.
Clothes closets, bookshelves, storage boxes, desks, and other hard-to-move furniture that are heavy are also used by being attached to the lower surface. The furniture transported to the desired location using the casters is fixed by being braked on wheels so as not to be inadvertently moved, and is installed by being supported by casters.

[0003] Furniture equipped with the above-mentioned casters is easy to move and change directions, but cannot be freely adjusted in height and horizontal at an installation position. Is also provided on the bottom of furniture. When moving the furniture, the conventional adjuster is screwed upward so that it does not hinder running, lifted up from the ground surface, transported the furniture to the installation position or near the installation position, lowered it, and adjusted it by turning the screw The furniture is adjusted to a desired height or level to support the furniture.

[0004]

However, separately providing the casters and the adjusters on the furniture as in the prior art requires not only a large number of man-hours for installation, but also maintenance of the casters and adjustment of the adjusters. The handling was troublesome.

Also, since the adjuster attached to the lower surface of the furniture is rotated and adjusted from the outside of the furniture, the furniture is installed between the furniture along the corner or the wall of the room. In such a case, the wall on the side of the furniture to be installed or the adjacent furniture hinders the adjustment work of the adjuster.
In particular, it is difficult to adjust the adjuster behind the furniture at the installation position, and when performing the adjustment, the furniture is once pulled out from the installed position, so that the burden on the operator is large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a caster for furniture that can adjust the height and level of the furniture at the installation position of the furniture.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a jack bolt is screwed into a screw hole of a boss provided at the end of a main body bracket, and an adjuster is attached below the jack bolt. Is rotatably mounted, a caster bracket is pivotally mounted on a distal end of the rotary bracket eccentrically deviated from the boss by a predetermined angle with a link pin, and a wheel is axially mounted on the distal end of the caster bracket. The base end of the caster bracket is connected to the adjuster in a vertically rotatable manner, and the jack bolt is rotated to raise and lower the adjuster, so that the wheel supports the link pin via the caster bracket. At the same time as the adjuster. Thus, the furniture can be adjusted from the upper surface of the caster to a state in which the furniture can be moved by the wheels and a state in which the furniture is supported by the adjuster with one tool.

In addition, an operation hole is formed in the bottom plate of the furniture, and the head of a jack bolt is fixed to the side plate of the furniture so that the operation hole corresponds to the operation hole. The caster can be adjusted, and the adjustment at the installation position of the furniture can be easily performed.

[0009]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIGS. 1 to 5 show a caster with an adjuster for furniture according to the present invention. The main body bracket 1 has a boss 5 at the tip and a jack bolt 10 screwed into a screw hole 6 of the boss 5. An adjuster 15 attached below the jack bolt 10; a revolving bracket 20 rotatably mounted on the boss 5 as an axis; A caster bracket 25 that is connected to the adjuster 15 at the distal end thereof, and wheels 30 and 30 that are pivotally mounted on the distal end of the caster bracket 25 and can pivot about the boss. .

The main body bracket 1 has a base wall 2, a top wall 2 extending perpendicularly from the upper end of the base wall 2, and reinforcing walls 4, 4 hanging on both sides of the top wall 2, and formed using a stainless steel material. The base wall 2 abuts on the side plate 42 of the furniture 40 along the top wall 2 along the lower surface of the bottom plate 41 of the furniture 40, and is fixed to the side plate 42 with screws 43.

A mounting hole 9 is provided at the front end of the top wall 2 of the main body bracket 1, and a boss 5 composed of a flange portion 8 and a cylindrical portion 7 protrudes below the mounting hole 9. At the center of the boss 5, a screw hole 6 penetrating vertically is screwed. An operation hole 44 communicating with the mounting hole 9 is formed in the bottom plate 41 of the furniture 40 corresponding to the boss 5.

The screw hole 6 of the boss 5 has a head 1 at the upper end.
A jack bolt 10 having a 1 protrudes from the lower end of the boss 5 and is screwed up and down in a vertical direction. At the lower end of the jack bolt 10, a metal adjuster 15 having a top cylindrical shape with an open lower portion is inserted through the center of the top wall 16 into the shaft portion 12 of the jack bolt 10 in a loosely fitted state and attached. Therefore, the adjuster 15 moves up and down as the jack bolt 10 moves up and down. The caster bracket 25 is attached to the cylindrical portion 17 of the adjuster 15.
The adjuster pin 18 for connecting the two is penetrated in the horizontal direction.

A bearing 21 is mounted on the outer peripheral surface of the cylindrical portion 7 of the boss 5, and a turning bracket 20 is provided below the cylindrical portion 7 of the boss 5 on the lower surface of the bearing 21 via a washer 22. It is supported on the upper surface of the C-ring 23 fitted in the outer peripheral groove, and is rotatably mounted around the boss 5.

The revolving bracket 20 has parallel leg plates 20a, 20 formed eccentrically downward from the boss 5 by a predetermined angle.
A caster bracket 25 is pivotally mounted on the inside of the distal end of each of the leg plates 20a, 20a at a substantially intermediate portion thereof by a link pin 24 so as to be vertically rotatable.

The caster bracket 25 has a top wall 27 and side plates 28, 28 which are suspended and parallel to both sides of the top wall 27. The side plates 28 projecting from the legs 20a, 20a of the pivot bracket 20 attached thereto. , 28, wheels 30, 30 are axially mounted by shaft pins 26 on the outer side. The wheels 30, 30 are formed using a hard synthetic resin material such as polyacetal resin, and a thrust receiving portion 31 is integrally provided at a position in contact with the side plates 28, 28 of the caster bracket 25.

The top wall 2 of the caster bracket 25
An elliptical connecting hole 29 is formed in the base end of each of the side plates 28 and 28 where the base 7 is not formed, and the adjuster 15 is located between the side plates 28 and 28 at the base end. At the base end of the bracket 25, the adjuster 15 is moved by an adjuster pin 18 which horizontally penetrates the connecting hole 29 and the cylindrical portion 17 of the adjuster 15.
Is linked to

The caster with an adjuster according to the present embodiment having the above-described configuration is mounted such that the head 11 of the jack bolt 10 can be moved up and down in the operation hole 44 provided in the bottom plate 41 of the furniture 40. The head 1
This is done using 1.

FIG. 1 shows an installation state of normal furniture in which the furniture 40 is placed on the floor surface 45 and the lower end surface 40a of the furniture 40 is in contact with the floor surface 45. Both the adjusters 15 are set to be slightly elevated from the floor surface 40.

In order to move the furniture 40, as shown in FIG. 4, the jack bolt 10 is rotated counterclockwise using a tool (not shown) such as a wrench to raise the furniture. By this operation, the base end of the caster bracket 25 is raised, and the wheel 3 at the tip of the caster bracket 25 is lifted.
In the case of 0, the link pin 24 is lowered around the fulcrum while changing the caster angle to ground. Therefore, on the contrary, adjuster 15
As the furniture rises, the furniture 40 is jacked up, leaves the floor surface 45, is supported by the wheels 30, and is ready to run.

Wheel 30 grounded with caster angles
Can be swung freely by the swivel bracket 20, and the adjuster 15 is relatively high and does not hinder running. Therefore, the furniture 40 can be moved in a desired direction by lowering all the wheels 30 of the casters attached to the furniture 40.

In order to determine the installation position of the furniture 40 and fix the furniture 40, the jack bolt 10 is rotated clockwise and lowered. By this operation, the wheel 30 supporting the furniture 40 is raised around the link pin 24, and conversely, the furniture 40 is
Is relatively lowered together with the adjuster 15 and lands on the floor surface 45 in the state shown in FIG.

When it is desired to support the furniture with the adjuster 15 in order to raise the height and level of the furniture 40 at the position where the furniture 40 is installed, the jack bolt 10 requiring operation is further rotated clockwise to lower the adjuster 15. As shown in FIG. 5, the adjuster 15 is protruded from the lower end surface 40a of the furniture 40 to jack up the furniture 40. By this operation, the furniture 40 is supported by the adjuster 15, and the wheels 30 move up around the link pins 24 relative to the adjuster 15.

As is apparent from the above description, each caster with an adjuster fixed to the bottom of the furniture 40 is obtained by rotating the jack bolt 10 from the upper surface side of the bottom plate 41 of the furniture 40 using a tool such as a wrench. Since the wheel 30 and the adjuster 15 are operated, the wall behind the furniture 40 to be installed or other furniture on the side does not hinder the adjustment work. Therefore, furniture 4 using casters
0 can be moved freely in any direction, and can be adjusted by the adjuster 15 after being set in a desired place.

Since the lifting and lowering of the wheel 30 and the adjuster 15 is performed by rotating the jack bolt 10 with a tool, the heavy furniture can be raised and lowered with a small force.
Heavy furniture can be easily moved, and the height and level of the furniture can be easily adjusted on the spot.

[0026]

The present invention is embodied in the form described above and has the following effects.

In the caster with the adjuster of the furniture of the present invention, the wheels and the adjuster are relatively moved up and down by operating the head of the jack bolt located on the upper surface of the caster. An operation hole through which the jack bolt can be raised and lowered is provided, so that it can be easily operated in a movable state or a fixed state using a tool from inside the bottom plate of the furniture.

[0028] Therefore, even for heavy furniture, the installation location can be easily changed by using the casters, and the wall around the furniture and other adjacent furniture in the desired location do not hinder the adjustment work. . Therefore, since a desired caster can be operated at the installation location, furniture is not re-moved for adjustment, and labor required for moving furniture and adjusting the height can be saved.

Further, since the function of the caster and the function of the adjuster are integrated into one mechanism, the maintenance and management become easy, and the mounting operation is completed only once.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a caster with an adjuster for furniture of the present invention.

FIG. 2 is a front view showing a caster with an adjuster of the furniture of FIG. 1;

FIG. 3 is a bottom view showing a caster with an adjuster of the furniture of FIG. 1;

FIG. 4 is a sectional view showing a state in which wheels of the casters with adjusters of the furniture of FIG. 1 are lowered.

FIG. 5 is a sectional view showing a state in which the adjuster of the caster with an adjuster of the furniture in FIG. 1 is lowered.

[Explanation of symbols]

1 body bracket, 5 boss, 6 screw hole, 10 jack bolt, 11 head, 15 adjuster, 20
Swivel bracket, 24 link pins, 25 caster brackets, 30 wheels, 40 furniture, 41 bottom plate, 42
Side plate, 44 operation hole,

Claims (2)

[Claims] 1. A jack bolt is screwed into a screw hole of a boss provided at a tip end portion of a main body bracket, an adjuster is attached below the jack bolt, and a turning bracket is rotatably mounted on the boss as an axis. A caster bracket is pivotally mounted on the tip of the rotating bracket that is eccentric from the boss by a link pin so as to be vertically rotatable with a link pin, and a wheel is pivotally mounted on the tip of the caster bracket and the base end of the caster bracket is fixed to the base. By vertically connecting the adjuster to the adjuster and rotating the jack bolt to raise and lower the adjuster, the wheel moves up and down with the link pin as a fulcrum via the caster bracket with the link pin as a fulcrum. Casters with furniture adjusters, characterized by the following. 2. An operation hole is formed in a bottom plate of the furniture,
The caster with an adjuster for furniture according to claim 1, wherein a head of a jack bolt corresponds to the operation hole and is fixed to a side plate of the furniture.