JPH0672432U - Swing-type adjuster - Google Patents

Abstract

(57) [Summary] [Purpose] In a swing type adjuster, the shaft part and the intermediate part part are common parts, and various seat parts can be recombined arbitrarily by a simple engaging and disengaging operation. [Structure] A support ball 1d is formed at a lower end of a shaft portion 1 connected to a leg 4 of a desk, and the support ball 1d is pushed into a spherical seat 10 from an insertion opening 10a formed in an intermediate part portion 2 to loosely fit the shaft portion 1 And assemble the intermediate part part 2. A plurality of slit holes 6 are formed through the vertical direction on the outside of a plurality of claw portions 8 that surround the spherical seat 10, and a seat portion 3 to be placed on the floor is formed in the slit holes 6.
By engaging a plurality of connecting projection pieces 12 standing on the upper part of the upper part from below, the locking projection 13 projecting on the inner surface of the upper end can be engaged with and disengaged from the locking recess 9 of the claw part 8. Lock on. As a result, the shaft portion 1 is prevented from slipping out of the spherical seat 10, and can swing freely.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a swing type adjuster used at the ends of legs of a table, a desk or the like.

[0002]

[Prior art]

 There are two types of adjusters: fixed type and swing type. Both types have various structures. As the former, the one illustrated in FIG. 6 is known. In this case, the neck shaft portion e connected to the front end of the connecting portion d by the male screw or the like of the shaft portion c is inserted into the through hole b provided at the center of the seat portion a, and the protruding end e ′ thereof is inserted. By caulking, the shaft portion c and the seat portion a are fixed.

On the other hand, a swinging type adjuster as shown in FIG. 7 is known. In this case, a through hole b formed at the center of the seat portion a is provided with a male screw or the like in the shaft portion c. A neck shaft portion e, which is continuously provided at the end portion of the connecting portion d, is inserted, and a margin of a predetermined length f is provided in the end shaft axial direction of the neck shaft portion e to crimp the end portion e ′. Thus, the shaft portion c is swingably connected to the seat portion a.

[0004]

[Problems to be solved by the device]

 However, according to the conventional adjuster, in both the fixed type and the swing type, the shaft portion and the seat portion are coupled by using the illustrated crimping means or a bush nut (not shown), and once assembled. However, it has a structure that cannot be disassembled or rearranged. Therefore, in order to increase the variation in the conventional adjuster, it is necessary to prepare many kinds of inventories as finished products, which causes a cost increase.

In view of the above problems of the conventional example, the present invention 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 multiple types of materials, shapes, etc. so that they can be assembled and recombined with one touch according to the application.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has a shaft part having a connecting part that can be connected to a desk leg and the like, a support ball connected to the lower end of the connecting part, and an annular recess with an open upper end. A plurality of slit holes that penetrate the bottom plate portion in the groove in the vertical direction and are provided at predetermined intervals in the circumferential direction, and stand upright from the bottom plate portion inside each of the slit holes and on the outer surface of the upper end. A plurality of claws provided with locking recesses, an intermediate part part surrounded by these claws, having a spherical seat of a shaft part having an insertion opening smaller than the diameter of the supporting sphere at the upper end, and a bottom plate part. And a seat portion having a plurality of connecting projections provided on the inner surface of the upper end at a predetermined interval in the circumferential direction from the upper surface of the claw and provided with the locking projections of the claws. The claw part of the intermediate part part elastically presses the support ball of the shaft part from the insertion opening and hits the spherical seat so that the support ball rotates. On the other hand, the connecting projection of the seat portion can be elastically fitted into the slit hole from below, and in the fitted state, the locking recess is formed. It is formed so that the claw portion can be held in a contracted state by firmly locking the engaging projection and the locking projection, and the intermediate part and the seat can be engaged and disengaged. I am trying to provide a swinging type adjuster that does.

[0007]

[Action]

 If you push the support ball that is connected to the tip of the connecting part of the shaft part into the insertion port of the spherical seat of the intermediate part part, the claw part of the intermediate part part has a space on the outside due to the slit hole. By elastically deforming the insertion opening to a larger diameter, the supporting ball is pushed into the spherical seat and enters a loose fit state, and the pawl portion elastically returns to its original position, The insertion opening is reduced to its original diameter, and the shaft and intermediate parts are assembled.

[0008] Next, when the connecting projection pieces of the seat portion are aligned with the slit holes of the intermediate part portion and pushed in from below, the locking projection portions of the connecting projection pieces are outside the claw portions. When it hits the side face, it is pushed in a state that it is slightly pressed and deformed to the outside, and at the same time when it is pushed in completely, each connecting projection piece returns to its original position, so that the locking projection part However, since the slit hole is locked by the locking recess of the claw part and the slit hole is closed by the connecting projection piece, the support ball of the shaft part does not come off from the spherical receiving part, and the intermediate part with the shaft part. The parts part is in the assembled state, and the intermediate part part and the seat part are also in the assembled state.

When changing the seat part to another material or shape, insert a tool such as a flat-blade screwdriver into the butting part of the lower end part of the intermediate part part and the upper surface of the seat part, and pry it open. , By unlocking the locking projection of the connecting projection piece and the locking recess of the claw, the connecting projection is pulled out from the slit hole of the intermediate part, and the seat portion is removed. It can be removed from the intermediate parts. Then, as in the case described above, the combination with the other seat portion can be performed by pushing the connecting projection piece into the slit hole of the intermediate part portion.

[0010]

【Example】

 Hereinafter, the present invention will be described with reference to the illustrated embodiment. As shown in FIG. 1, the component parts are divided into three parts of a shaft part 1, an intermediate part part 2 and a seat part 3, and the shaft part 1 and The middle part 2 is a common part, and only a plurality of types of seats 3 are formed so that they can be assembled and reassembled arbitrarily according to the user's request and application.

As shown in FIGS. 1 and 2, the shaft portion 1 is formed by engraving a male screw on the outer periphery over the entire length thereof, or a connecting portion 1a formed by a mere taper rod or the like. When connecting to the connecting hole 4a such as the screw of the leg 4 in a desk or the like, the height of the desk or the like can be adjusted by the degree of screwing of the shaft portion 1 by the screw with respect to the leg 4. Is the same as.

On the lower end side of the shaft portion 1, when connecting the connecting portion 1a to the connecting hole 4a of the leg 4 by screwing or the like, a nut-like rotating portion is screwed by a tool such as a spanner. 1b, a neck portion 1c having a small diameter, which is successively connected to the neck portion 1b, and a supporting ball 1d having a larger diameter than the neck portion 1c.

On the other hand, as shown in FIGS. 1 and 3 (A) and 3 (B), the intermediate part portion 2 is provided with a flat annular recessed groove 5 on the upper surface thereof, which is an annular shape. The slit groove 5 is formed with four slit holes 6 at regular intervals in the circumferential direction by penetrating the bottom plate portion 7 in the vertical direction.

Further, in the intermediate part portion 2, the four claw portions 8 ... Are arranged on the same circumference as the inner arrangement of the slit holes 6 ... And are arranged in the circumferential direction. The claws 8 are provided upright from the bottom plate 7 at regular intervals, and stepped locking recesses 9 are formed on the outer surfaces of the upper ends of the claws 8 ...

Further, in the middle part 2, the spherical seat 10 for the supporting sphere 1 d of the shaft 1 is surrounded by the four claws 8 ... At the upper end thereof, an insertion opening 10a for the supporting ball 1d is opened. The inner diameter of the spherical seat 10 is formed to be substantially the same as the outer shape of the support ball 1d, and the inner diameter of the insertion opening 10a at the upper end thereof is set to be smaller than the outer shape of the support ball 1d by a required dimension. ing.

The diameter of the neck portion 1c of the shaft portion 1 is set to be smaller than the inner diameter of the insertion opening 10a of the spherical seat 10 by a required dimension so that the supporting sphere 1d has a spherical shape as shown in FIG. The shaft portion 1 is configured to be swingable in the radial direction in a state of being fitted into the receiving seat 10.

Further, in the intermediate part portion 2, a counterbore recess 11 is opened downward on the back surface of the bottom plate portion 7, to which a circular shoulder portion 14 of the seat portion 3 described later is fitted. As a result, the seat portion 3 has a reinforcing effect when it receives a lateral external force.

As shown in FIGS. 1 and 4A and 4B, the seat portion 3 includes four slits in the above-mentioned intermediate part portion 2 from the upper surface of the main body 3a which is a thick disk-shaped body. Four projecting pieces 12 for connection corresponding to the holes 6 are provided on the same circumference and are integrally provided upright at regular intervals in the circumferential direction.

The seat portion 3 is integrally formed of hard plastic or the like so that the connecting projections 12 ... Can be elastically deformed in the radial direction and can be returned to the original position. , The locking recesses 9 of the claws 8 in the intermediate part 2 described above and the locking projections 13 that can be freely engaged and disengaged are integrally formed on the inner surfaces of the upper ends of the connecting projections 12 ... Is projected on.

Further, the seat portion 3 is provided on the upper surface of the main body 3a thereof, and is provided with an upward circular shoulder portion 14 having a circular plane shape on the outer periphery of the base portion of each of the connecting projecting pieces 12 ... As shown in FIG. 1, the circular shoulder portion 14 is integrally formed and is fitted into the counterbore portion 11 of the intermediate part portion 2.

FIGS. 5 (A) and 5 (B) show another embodiment of the seat portion 3. In this case, the body 3a is made of hard plastic or the like and formed in a funnel shape that opens downward. The soft material 3b such as rubber or urethane is fitted from below, which means that if the floor surface is a smooth surface, of course, there are rough surfaces and irregularities. I made it hard to slip.

In order to prevent the soft material 3b from falling off the main body 3a, it is necessary to connect them. Therefore, in the illustrated example, the lower peripheral wall of the circular shoulder 14 of the main body 3a and Corresponding to the above, the horizontal holes 15 and 16 are respectively provided in the soft material 3b, and the metal plate 17 is fitted into the lateral holes 15 and 16 to integrate the both 3a and 3b. The connecting means may of course have a structure in which a protrusion and a recess (not shown) are provided on the facing surfaces of the main body 3a and the soft material 3b so as to be engaged with each other, or they may be joined by an adhesive. It may be provided, and in this case as well, the connecting projection piece 12 ... And the circular shoulder portion 14 are continuously provided on the upper portion of the main body 3a. Although various configurations can be considered for the seat 3 other than the illustrated example, the connecting projection 12 having the locking projection 13 must be provided upright from the upper surface of the main body 3a.

When the adjuster of the present invention is assembled as shown in FIG. 1 and the seat part 3 needs to be recombined, the lower end surface of the intermediate part part 2 and the seat part 3 are The seat part 3 can be removed from the intermediate part part 2 by inserting a tool such as a flat-blade screwdriver into the abutting part A from the outside and prying, but as shown in FIGS. 3 (A) and (B). When one or two notches 18 for removal are provided on one side of the counterbore 11 in the intermediate part 2, the tip of the tool 19 such as a flat-blade screwdriver is provided in the assembled state shown in FIG. Can be easily inserted from the notch portion 18 between the upper surface of the circular shoulder portion 14 of the seat portion 3 and the bottom plate portion 7 of the intermediate part portion 2, so that the seat portion 3 can be easily removed and the intermediate part portion can be easily removed. This is convenient because it can be removed without damaging the surfaces of 2 and the seat 3.

[0024]

[Effect of device]

 Since the present invention is configured as described above, the shaft part and the intermediate part part are the common parts, and only the seat part is formed in plural types to meet the user's request and application. It is possible to combine any combination, and since it is possible to rearrange even after assembling in stock, it is possible to stock in parts, assemble at the time of shipment, or rearrange the assembled parts, so the inventory can be reduced. , Rational.

Furthermore, assembling and disassembling can be done with one-touch, so that the assembly can be easily reassembled. Moreover, even though the assembling and disassembling can be performed, the seat is attached to the one in which the shaft portion and the intermediate parts are incorporated. By inserting it, the connecting projection of the seat part closes the slit hole of the intermediate part part, and the outward bending of the claw part is blocked. It does not come off from the spherical seat of the parts, so that the same component coupling strength as that of the conventional integrated structure can be obtained.

[Brief description of drawings]

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

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

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

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

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

FIG. 6 is a vertical cross-sectional view illustrating a conventional fixed adjuster.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shaft part 1a Connection part 1d Support ball 2 Intermediate part part 3 Seat part 4 Leg 5 Groove groove 6 Slit hole 7 Bottom plate part 8 Claw part 9 Engagement recessed part 10 Spherical seat 10a Insertion port 12 Connecting projection piece 13 Engagement Stop

Claims (1)

[Scope of utility model registration request] 1. A shaft part having a connecting part which can be connected to a leg of a desk or the like, a support ball continuously provided at the lower end thereof, and a bottom plate part in an annular groove formed by opening the upper end in a vertical direction. A plurality of slit holes penetrating each other at a predetermined interval in the circumferential direction and a plurality of slit holes standing upright from the bottom plate portion inside each of the slit holes and having locking recesses on the outer surface of the upper end. Claw parts, an intermediate part part surrounded by these claw parts and having a spherical seat of a shaft part having an insertion opening smaller than the diameter of the support ball at the upper end, and a predetermined circumferential direction from the upper surface of the bottom plate part. And a seat portion having a plurality of connecting projecting pieces provided with locking projections of the claws on the inner surface of the upper end thereof, the claws of the intermediate parts being The support ball of the shaft is elastically pressed from the insertion port and is formed so that the support ball can be freely rotated on the spherical seat. On the other hand, the connecting projection of the seat portion can be elastically fitted into the slit hole from below, and in the fitted state, the locking recess and the locking projection are firmly stopped. By doing so, the swing type adjuster is characterized in that it is formed so as to be able to hold the claw portion in a contracted state, and that the intermediate part portion and the seat portion can be freely engaged and disengaged.