JP3018693U - Height adjustment device for supporting legs for furniture - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a height adjustment device for a furniture support leg that can be easily attached to the support leg and can be easily adjusted. [Structure] A tubular body 5 is rotatably fitted to a mounting portion 2 having a circular cross section formed on a lower end of a supporting leg 1 such as a table or a chair.
A screw rod 6 which is integrally projecting upward from the center of the bottom of the cylindrical body 5 is screwed into a screw hole 7 which is formed along the axis from the center of the lower end of the mounting portion 2. A ground plate 9 is rotatably attached to the lower end of the tubular body 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a height adjusting device that can be easily attached to a supporting leg such as a table or a chair.

[0002]

[Prior art]

 As a height adjusting device for a supporting leg for furniture, there is a device disclosed in Japanese Utility Model Laid-Open No. 55-127555. This conventional device is equipped with a screw for inserting and retracting a second leg into a tubular first leg, and connecting the first and second legs to adjust the degree of overlap between them. Is affixed to the bottom of a rack or supporting leg.

[0003]

[Problems to be solved by the device]

 The height adjusting device of the above publication can be made beautiful by hiding the adjusting screw in the first and second legs, but the first or second leg is fixed with screws. Since it must be used and fixed to the bottom surface of the supporting leg, etc., there is a drawback that the installation work is troublesome.

An object of the present invention is to provide a height adjusting device for a furniture supporting leg, which maintains the advantages of such a conventional device, can be easily attached to the supporting leg, and can be easily adjusted. It is in.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the furniture supporting leg height adjusting device of the present invention rotatably fits a tubular body to a mounting portion having a circular cross section formed at a lower end of a supporting leg of a table, a chair or the like. A screw rod that is integrally projecting upward from the center of the bottom of the cylindrical body is screwed into a screw hole formed along the axis from the center of the lower end of the mounting portion.

In the height adjusting device for the furniture supporting leg, a ground plate may be rotatably attached to the lower end of the cylindrical body.

[0007]

[Action]

 If you rotate the cylinder by aligning the tip of the screw rod in the cylinder with the screw hole of the mounting portion formed at the lower end of the supporting leg of the table, etc., the screw rod will be screwed into the screw hole, and the cylinder will be attached to the mounting portion. It is fitted to the outer side of the to become the attached state shown in FIGS.

In this mounted state, if the tubular body is rotated in the direction in which the screw rod is loosened, the tubular body is lowered and the supporting leg becomes longer, and conversely, if the tubular body is rotated in the direction in which the screw rod is tightened, the tubular body is rotated. The body rises, the supporting legs become shorter, and the height of the furniture is adjusted.

Further, as shown in FIG. 3, when the ground plate is rotatably attached to the lower end of the tubular body, the tubular body is rotated while the ground plate is grounded to the floor surface so that the height of the furniture increases. It will be adjusted.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 show a first embodiment of a height adjusting device for a furniture supporting leg according to the present invention, in which a mounting portion 2 having a circular cross section is formed at the lower end of a wooden supporting leg 1 such as a table or a chair. A vertical hole 3 is bored from the center of the lower end of the mounting portion 2 along the axis, and an eye nut 4 is fitted in the vertical hole 3.

A rotating cylinder 5 made of plastic is fitted on the outside of the mounting portion 2 so as to be movable up and down. The lower end is integrally fixed to the center of the bottom of the tubular body 5, and the tip of a screw rod 6 projecting in the tubular body 5 is screwed into the screw hole 7 of the demon nut 4.

FIG. 3 shows a second embodiment of a height adjusting device for a furniture supporting leg according to the present invention, in which a metal support is attached to a mounting part 2 of a wooden supporting leg formed similarly to the first embodiment. The rotary cylinder 5 is fitted in a vertically movable manner, and a screw rod 6 projecting in the cylinder 5 is screwed into a screw hole 7 of the demon nut 4 of the mounting portion 2. A plastic ground plate 9 is rotatably attached to the lower end of the cylindrical body 5 via a nylon washer 8.

In both of the above-described embodiments, the mounting portion 2 having a small diameter is formed at the lower end of the wooden supporting leg 1. However, the lower end of the wooden supporting leg may be used as the mounting portion 2 without reducing the diameter.

Further, the materials of the supporting leg 1, the tubular body 5, and the ground plate 9 are not limited to those of the above-mentioned embodiment, and it goes without saying that they can be changed if necessary.

[0015]

[Effect of device]

 According to the present invention, the mounting can be performed by simply rotating the tubular body by aligning the tip of the threaded rod in the tubular body with the screw hole of the mounting portion formed at the lower end of the supporting leg of the table, chair, etc. The work is extremely easy.

Since the tubular body moves up and down using the mounting portion as a guide, it can be easily rotated and adjusted easily.

Since the screw rod is always covered with the tubular body, it has a good appearance and the appearance of the furniture is not deteriorated.

When the ground plate is rotatably attached to the lower end of the cylinder as in claim 2, the cylinder is lightly rotated while the ground plate is grounded to the floor surface, and the height of the furniture is increased. Can be adjusted.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of the above embodiment.

FIG. 3 is a vertical sectional view showing a second embodiment of the present invention.

[Explanation of symbols]

 1 Support leg 2 Mounting part 3 Vertical hole 4 Demon nut 5 Cylindrical body 6 Screw rod 7 Screw hole 8 Nylon washer 9 Ground plate

Claims (2)

[Scope of utility model registration request] 1. A screw which is rotatably fitted to a mounting portion having a circular cross section formed at a lower end of a support leg of a table, a chair or the like, and which is integrally projecting upward from the center of the bottom of the tubular body. A height adjusting device for a support leg for furniture, characterized in that a rod is screwed into a screw hole formed along the axis from the center of the lower end of the mounting portion. 2. The height adjusting device for a furniture supporting leg according to claim 1, wherein a ground plate is rotatably attached to the lower end of the cylindrical body.