JPH0522111Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an adjuster device that is attached to the legs of furniture such as desks and counters to adjust its height and level.It has a simple structure, is easy to install, and has a leg seat. The height can be adjusted extremely easily from above.

Next, the details will be explained with reference to the illustrated embodiment. In FIG. 1, 1 is a desk top plate, 2 is a leg, 3 is a leg seat, and 4 is an adjuster star provided before and after the leg seat 3.
As shown in FIGS. 2 and below, the leg seat 3 has a substantially downward U-shaped cross section, and the lower edges of both side plate portions 3a are bent inward to form bent edges 3b.

A mounting plate 5 having a substantially square cross section and a stepped portion 5' is fixed to the lower surface of the upper plate part 3c at appropriate positions on the front and rear of the leg seat 3, and a gap a of an appropriate distance is created between the mounting plate 5 and the lower surface of the upper plate part 3c. Further, fitting holes 6, 6' are bored through the upper plate part 3c and the mounting plate 5, and a head 7b having a driver fitting groove 7a and a head 7b having a screwdriver fitting groove 7a are formed in the fitting holes 6, 6'. An adjusting screw 7 having a larger diameter flange portion 7c fits and accommodates the flange portion 7c in the gap a between the upper plate portion 3c and the mounting plate 5, so that the head 7b is fitted into the upper plate portion 3c. Fits into hole 6,
It is exposed and rotatably held on the upper surface of the upper plate portion 3c.

Reference numeral 8 is a grounding nut formed in a cylindrical shape, with the lower surface serving as a grounding surface, and a female thread in the center, which is connected to the adjusting screw 7.
As shown in Fig. 3, the cross-sectional shape of its outer peripheral surface is non-circular, such as an oval or oval shape that is elongated in the longitudinal direction.
The nut is vertically slidably held in a guide hole 9a having the same cross-sectional shape as the nut, which is bored correspondingly to a nut receiver 9 which is fixed between the side plate parts 3a, 3a and has a downward U-shaped cross section. The internal threaded portion, ie, the adjustment threaded portion, and the non-circular outer peripheral surface of the grounding nut 8 are provided at approximately the same height in the vertical direction of the nut. Guide hole 9a
The hole edge is bent downward to form a retaining edge 9a'. In the figure, 10 is a removable cap at the end of the leg seat 3.

To install this adjuster, first insert the adjusting screw 7 from above into the holding hole 6' of the mounting plate 5, and then insert the head 7b of the adjusting screw 7 into the fitting hole 6' of the upper plate 3c of the leg seat. After fitting the mounting plate 5 to the lower surface of the leg seat upper plate portion 3c, the flange portion 7c of the adjustment screw is aligned with the leg seat upper plate portion 3c. Since it is rotatably held between the upper plate part 3c and the mounting plate 5, while rotating the adjusting screw 7, the grounding nut 8 is screwed onto this adjusting screw 7, and then the adjusting screw 7 is further rotated. As a result, the grounding nut 8 rises and fits into the guide hole 9a of the nut receiver 9, and the installation is completed, so that the lower surface of the grounding nut 8 is grounded to the floor, etc., and the furniture is installed in a predetermined position. In this case, if the cap 10 at the end of the leg seat is removed, attachment of the adjuster star will be made easier. As mentioned above, since the engaging portion between the grounding nut 8 and the guide hole 9a is non-circular, the rotation of the grounding nut 8 is prevented, so by twisting the adjusting screw 7 with a screwdriver, the grounding nut 8 can be moved up and down to adjust the height of the leg seat 3.

As mentioned above, the adjuster device of the present invention has an extremely simple structure, is easy to manufacture, and can be easily installed.Also, since the head 7b of the adjustment bolt is exposed on the upper surface of the leg seat 3, it can be easily screwed. It is easy to turn, and the grounding nut 8 moves up and down without rotating.
Compared to the conventional adjuster device, etc., in which an adjustment screw whose head is grounded is screwed into a nut fixed to the leg of furniture, and the height is adjusted by twisting the head, the adjustment bolt 7 is In combination with the exposed head 7b of the grounding nut 8, the height can be adjusted extremely smoothly and easily. Since the screw shaft is provided at almost the same height as the upper part of the rotation suppressing part, an adjustment nut is screwed onto this screw shaft (for example, see Japanese Utility Model Publication No. 58-29970). Compared to the above, the entire length of the adjuster star can be shortened, and it can be sufficiently installed in the leg seat 3, which has a relatively low height and has a substantially downward U-shaped cross section as shown in the figure, and usually does not protrude downward. Therefore, it has practical effects such as being convenient and not getting in the way during transportation and packaging. In order to prevent the rotation of the grounding nut 8, in addition to the shape of the outer peripheral surface and the guide hole 9a as shown in the figure, a semicircular shape,
It may be angular or the like. Further, a protrusion provided on the outer peripheral surface of the cylindrical nut 8 may be engaged with a groove provided in the circular guide hole 9a, and a protrusion provided on the edge of the circular guide hole 9b may be engaged with a groove provided in the circular guide hole 9b. It is also possible to use other rotation restraining means, such as vertical and horizontal engagement provided on the outer circumferential surface of 8.

In addition to the shape shown in the drawings, the mounting plate 5 may also have a fork-shaped mounting plate 5 having a fitting groove 6'' at the tip instead of the fitting hole 6' as shown in FIG. It may be made of a plate material with The adjustment screw 7 can be attached to the leg seat upper plate part 3c and can be easily removed.In this case, the head 7b of the adjustment screw 7 is fitted into the fitting hole 6, and the attachment plate 5 is elastically removed. to return to its original position.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is an external perspective view of the desk, the following is an enlarged view, Fig. 2 is a vertical sectional view taken along the line X-X in Fig. 1, and the third part is a main part. FIG. 4 is a partial plan view, FIG. 4 is a side view of the same, and FIG. 5 is a plan view showing another example of the mounting plate. 1... desk top plate, 2... legs, 3... leg seat, 4...
Adjuster star, 5...Mounting plate, 7...Adjustment screw,
8...Grounding nut, 9...Nut holder.

Claims (1)

[Scope of utility model registration request] A fitting hole 6 is bored in the upper plate part 3c of the leg seat 3, which has a substantially downward U-shaped cross section, and a suitable gap a is left between the lower surface of the upper plate part 3c and the mounting plate. 5 is fixed, and the engaging part 7a of the twisting tool is attached to the head 7b.
The flange portion 7c provided on the head of the adjusting screw 7 is fitted and held in the gap a between the upper plate portion 3c and the mounting plate 5, and the head 7b is fitted into the fitting hole 6. A cylindrical grounding nut 8 is formed, which is exposed and rotatably mounted on the upper surface of the upper plate part 3c, and whose lower surface is used as a grounding surface and has a female thread in the center, and which is screwed into the adjustment screw 7. and the leg seat 3 above
The nut holder 9 is fixed to the leg seat 3, and is fitted into the guide hole 9a of the nut holder 9 fixed to the leg seat 3 so as to be movable up and down. An adjuster device for furniture, characterized in that the mating hole 9a is made non-circular to prevent rotation of the grounding nut 8.