JP2562534Y2 - Swing type adjuster - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing type adjuster which is used at an end of a leg of a table, desk or the like.

[0002]

2. Description of the Related Art Adjusters include a fixed type and a swing type, and both types have various structures. As the former, the one illustrated in FIG. 6 is known.
In this case, the through hole b provided at the center of the seat a
A neck shaft portion e connected to the end of the connecting portion d formed by a male screw or the like in the shaft portion c is fitted and inserted, and the protruding end e 'is swaged to fix the shaft portion c and the seat portion a. I have to.

[0003] On the other hand, as a swing type adjuster, one shown in FIG. 7 is known.
A neck shaft e connected to the end of the connecting portion d formed by a male screw or the like in the shaft c is inserted into a through hole b provided at the center of the seat a, and the axial direction of the end of the neck shaft e in the axial direction. By crimping the end portion e 'with a margin of a predetermined length f, the shaft portion c is swingably connected to the seat portion a.

[0004]

However, according to the conventional adjuster, the connection between the shaft portion and the seat portion in both the fixed type and the swing type is performed by using a caulking means shown or a bush nut not shown. Once assembled, the structure cannot be disassembled or rearranged. Therefore, in the conventional adjuster, in order to increase the number of variations, it is necessary to prepare several types of stocks as finished products, which is a factor of cost increase.

The present invention has been made in view of the above-mentioned problems of the prior art, and relates to a swing type adjuster, in which a basic part is divided into three parts, a shaft part and an intermediate part part are common parts, and only a seat part is provided. The purpose is to prepare a plurality of types depending on the material, shape, etc., and to assemble and rearrange with one touch according to the application.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a shaft having a connecting portion which can be connected to a desk leg or the like, a supporting ball connected to a lower end thereof, and an upper end. A plurality of slit holes provided at predetermined intervals in the circumferential direction are vertically penetrated through the bottom plate portion of the annular concave groove provided by opening, and stand up from the bottom plate portion inside each of the slit holes. A plurality of claw portions provided with locking recesses on the outer surface of the upper end, and a spherical seat of a shaft portion surrounded by these claw portions and opening at an upper end with an insertion opening smaller than the diameter of the support ball. And an intermediate part having a plurality of connecting projections which are erected at a predetermined interval in the circumferential direction from the upper surface of the bottom plate and provided with a locking projection of the claw on the inner surface of the upper end. It consists of a seat part, and the claw part of the intermediate part part presses the support ball of the shaft part from the The support ball is formed so as to be freely rotatable on the seat, while the connecting protruding piece of the seat is elastically press fit into the slit hole from below, and is in a fitted state. Wherein the locking recess and the locking projection are firmly fixed, so that the claw can be held in a contracted state, and the intermediate part and the seat can be freely disengaged. The aim is to provide a swing-type adjuster characterized by the following.

[0007]

[Function] When the support ball connected to the tip of the connecting portion of the shaft portion is pushed into the insertion opening of the spherical receiving portion of the intermediate part portion, the claw portion of the intermediate part portion has a space due to the slit hole outside thereof, By elastically deforming outward, thereby, the diameter of the insertion opening is expanded, so that the support ball is pushed into the spherical seat and enters a loose fit state, and the claw portion elastically returns to the original position, The insertion opening is reduced to its original diameter, and the shaft and the intermediate part are assembled.

Next, in each slit hole of the intermediate part,
When you push in from the bottom by aligning each connection protruding piece of the seat,
The connection projecting piece is pushed in a state of being slightly pressed and deformed outward by the locking projection abutting against the outer surface of the claw part, and at the same time as being completely pushed in,
Since each connecting projection piece returns to the original position, the locking projection locks with the locking recess of the claw part, and the slit hole is closed by the connecting projection piece. The support ball of the shaft portion is not removed from the spherical receiving portion, the shaft portion and the intermediate part are in an assembled state, and the intermediate part and the seat are also in the assembled state.

When reassembling the seat to another material or shape, insert a tool such as a flathead screwdriver into the butted portion of the lower end of the intermediate part and the upper surface of the seat, and pry it out. By unlocking the locking projection of the connecting projection and the locking recess of the claw, the connecting projection is pulled out below the slit hole of the intermediate part, and the seat is replaced with the intermediate part. Can be removed from the part. Then, as in the case described above, the combination with another seat portion can be performed by pushing the connecting protruding piece into the slit hole of the intermediate part portion.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. As shown in FIG. 1, the components are divided into three parts, a shaft part 1, an intermediate part part 2, and a seat part 3. The shaft portion 1 and the intermediate part portion 2 are common components, and only the seat portion 3 is formed in a plurality of types, so that it can be arbitrarily assembled and rearranged according to a user's request or application.

As shown in FIGS. 1 and 2, the shaft portion 1 is composed of a connecting portion 1a formed by embossing an external thread over the entire length thereof or a simple tapered rod or the like. Connection hole 4a for the screw of leg 4, etc.
In the case of connection with the conventional method, the height of a desk or the like can be adjusted by the degree of screwing of the shaft portion 1 to the leg 4 by screws.

At the lower end of the shaft portion 1, a connecting portion 1
When a is connected to the connection hole 4a of the leg 4 by screwing or the like, a nut-shaped rotating portion 1b that is screwed by a tool such as a spanner, and a small-diameter neck portion 1c that is sequentially connected to the nut. And a supporting ball 1d having a diameter larger than that of the supporting ball 1d.

On the other hand, the intermediate part 2 is shown in FIGS.
As shown in (A) and (B), a planar annular concave groove 5 which is open on the upper surface is provided, and this annular concave groove 5 is provided.
Are formed by penetrating the bottom plate portion 7 in the up-down direction at regular intervals in the circumferential direction.

Further, the intermediate part portion 2 has four claw portions 8 # arranged inside the respective slit holes 6 #.
爪 are on the same circumference and are erected from the bottom plate 7 at a constant interval in the circumferential direction.
On the outer surface of the upper end of 外側, a step-shaped locking concave portion 9 which is upward in the radial direction is formed.

In the middle part 2, a spherical seat 10 for the support ball 1d of the shaft 1 is surrounded by the four claws 8 # at the center thereof. At its upper end, an insertion opening 10a for the support ball 1d is provided.
Has been established. The inner diameter of the spherical seat 10 is substantially the same as the outer diameter of the support ball 1d, and the inner diameter of the insertion port 10a at the upper end is the same as that of the support ball 1d.
Is set smaller than the outer shape by a required dimension.

The diameter of the neck portion 1c of the shaft portion 1 is set smaller than the inner diameter of the insertion opening 10a of the spherical seat 10 by a required dimension, and as shown in FIG. The shaft portion 1 is configured to be able to swing freely in the radial direction in a state where the shaft portion 1 is inserted into the receiving seat 10.

Further, in the intermediate part 2, a counterbore recess 11 is opened downward on the back surface of the bottom plate 7;
The seat 3 has a reinforcing effect when the seat 3 receives a lateral external force by being fitted with a circular shoulder 14 described later of the seat 3.

As shown in FIGS. 1 and 4 (A) and 4 (B), the seat 3 is formed from the upper surface of a thick disk-shaped main body 3a.
Four slit holes 6 in the intermediate part 2 described above
The four connecting projecting pieces 12 # corresponding to ‥‥ are on the same circumference and are integrally erected at regular intervals in the circumferential direction.

The seat 3 is provided with the connecting protruding piece 12 #.
‥ is elastically deformable in the radial direction and is integrally formed of a hard plastic or the like so as to be able to return to its original position. Each claw 8 in the intermediate part 2 described above
A locking protrusion 13 that can be freely engaged with and removed from the locking recess 9 of ‥ is integrally provided.

Further, the above-mentioned seat portion 3 is provided on the upper surface of the main body 3a, on the outer periphery of the base portion of each of the above-mentioned connecting projecting pieces 12 #, with the above-mentioned circular shoulder portion 14 having a flat circular shape and pointing upward. The circular shoulder 14 is integrally formed, and is fitted into the counterbore 11 in the intermediate part 2 as shown in FIG.

FIGS. 5 (A) and 5 (B) show another embodiment of the seat portion 3. In this case, the main body 3a is formed in a funnel shape which is opened downward with a hard plastic or the like. To this, a soft material 3b such as rubber or urethane is fitted from below, so that when the floor surface is a smooth surface, it is of course difficult to slip even if there is a rough surface or unevenness. It is like that.

In order to prevent the soft material 3b from falling off the main body 3a, it is necessary to connect them.
For this reason, in the illustrated example, the circular shoulder 14 in the main body 3a is used.
Of the lower peripheral wall and a soft hole 3
5 and 16 are respectively penetrated, and a metal plate 17 is fitted to these, so that both 3a and 3b are integrated. Of course, the connecting means may be a structure in which a projection and a recess (not shown) are provided opposite to each other on the facing surface of the main body 3a and the soft material 3b, and may be engaged with each other. In this case as well, the connecting protruding piece 12 # and the circular shoulder 14 are connected to the upper portion of the main body 3a. Various configurations other than the illustrated example are conceivable as the seat 3, but the connecting projection 12 having the locking projection 13 must be erected from the upper surface of the main body 3 a.

When the adjuster of the present invention is assembled as shown in FIG. 1 and it is necessary to rearrange the seat 3, the lower end surface of the intermediate part 2 and the seat 3
If a tool such as a flathead screwdriver is inserted from the outside into the abutting portion A,
Can be removed from the intermediate part 2 as shown in FIG.
As shown in FIG. 1B, if one or two notches 18 for removal are provided at one side of the counterbore hole 11 in the intermediate part 2, in the assembled state shown in FIG. , The tip of a tool 19 such as a flathead screwdriver can be easily inserted from the notch 18 into the space between the upper surface of the circular shoulder 14 in the seat 3 and the bottom plate 7 in the intermediate part 2. Not only can be easily removed, but also can be removed without damaging the surfaces of the intermediate part 2 and the seat 3.

[0024]

[Effects of the Invention] Since the present invention is configured as described above, the shaft part and the intermediate part part are made common parts, and only the seat part is formed in a plurality of types, so that the demands and applications of the user are obtained. Can be arbitrarily combined according to the requirements.Also, since it is possible to reassemble even those that are in stock after assembly, they can be stocked in parts, assembled at the time of shipment, or reassembled at the time of assembly. Reduction is reasonable and reasonable.

Furthermore, since assembly and disassembly can be performed with a single touch, reassembly of an assembly can be easily performed. In addition, despite the fact that assembly and disassembly are possible, the seat portion is incorporated in the one incorporating the shaft portion and the intermediate part portion. By inserting, the slits in the intermediate part are closed by the connecting protruding pieces of the seat, so that the outward bending of the claw is prevented, so that the support ball of the shaft is in the middle. It does not come off from the spherical seat of the part, and therefore, the same part bonding strength as that of the conventional one having the integral structure can be obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of a swing type adjuster according to an embodiment of the present invention in a use state.

FIG. 2 is a front view showing a shaft portion of the embodiment.

3A and 3B show an intermediate part of the embodiment, wherein FIG. 3A is a plan view and FIG. 3B is a sectional view taken along line AA 'in FIG. 3A.

FIG. 4 shows a seat portion of the embodiment, (A) is a plan view,
(B) is a sectional view taken along line BB 'in (A).

5A and 5B show another embodiment of the seat portion in the swinging type adjuster according to the present invention, wherein FIG. 5A is a plan view and FIG. 5B is a longitudinal sectional view.

FIG. 6 is a longitudinal sectional view illustrating a conventional fixed adjuster.

FIG. 7 is a longitudinal sectional view illustrating a conventional swing-type adjuster.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shaft part 1a Connecting part 1d Supporting ball 2 Intermediate part part 3 Seat part 4 Leg 5 Concave groove 6 Slit hole 7 Bottom plate part 8 Claw part 9 Locking concave part 10 Spherical seat 10a Insertion opening 12 Connecting protrusion 13 Stop

Claims (1)

(57) [Scope of request for utility model registration] An axial portion having a connecting portion freely connectable to a desk leg or the like, a supporting ball connected to a lower end thereof, and a bottom plate portion in an annular concave groove provided with an open upper end in a vertical direction. A plurality of slit holes provided at predetermined intervals in the circumferential direction, and a plurality of slit holes provided upright from the bottom plate portion inside each of the slit holes, and provided with locking recesses on the upper outer surface. Claw portions, an intermediate part portion surrounded by these claw portions and having a spherical seat for a shaft portion having an insertion opening smaller than the diameter of the support ball and opened at the upper end, and a predetermined circumferential direction from the upper surface of the bottom plate portion. And a seat having a plurality of connecting protruding pieces provided with locking projections of the claw portion on the inner surface at the upper end, and the claw portion of the intermediate part portion is The support ball of the shaft portion is resiliently pressed from the insertion opening so that the support ball can be freely fitted to the spherical seat so as to be rotatable. On the other hand, the connection projecting piece of the seat portion can be elastically fitted into the slit hole from below, and is in the fitted state, so that the locking concave portion and the locking projection are strongly locked. The swinging adjuster is formed so that the claw portion can be held in a contracted state, and the intermediate part and the seat can be freely disengaged.