JP2000089704A - Strut having height adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a strut having a height adjusting device which has excellent operability at the time of height adjustment and is capable of making stepless height adjustment. SOLUTION: A screw rod 12 is erected on a base strut 10 and an adjusting nut 20 is vertically movably screwed onto the external threads 12a of this screw rod 12. A pipe-like main strut 16 is inserted onto the screw rod 12 and the bottom end of the main strut 16 is supported by the adjusting nut 20 and a cap is mounted in this state at the top end of the screw rod 12. The main strut 16 is held between the adjusting nut 20 and the cap and the adjusting nut 20 is rotated, by which the main strut 16 is moved upward and downward and the height thereof is adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column used for supporting, for example, display panels, and more particularly to a column provided with a height adjusting device.

[0002]

2. Description of the Related Art FIG. 4 shows a display panel (50) using columns.
Is shown. As shown in the figure, the display panel (50) is supported in the display state by the columns (52) erected on both sides, but if there is unevenness on the floor surface, each of the display panels (50) is erected on the floor surface. Because the height of the column (52) varies,
In order to absorb the height difference of the floor surface, a device for adjusting the height is provided on each column (52).

FIG. 5 shows an example of such a height adjusting device. This adjustment device is attached to a large-diameter base pipe (56) attached to the center of the base (54) of the strut (52).
By inserting a movable pipe (58) of small diameter that can move up and down and tightening a fixing screw (60) screwed to the side of the base pipe (56), the movable pipe (58) can be pressed and fixed at any position. It has become.

Alternatively, through holes are formed in the movable pipe (58) at predetermined intervals, and height can be adjusted stepwise by inserting through pins into the through holes.
Or, provide a plurality of adjustment screws on the back of the base (54),
There is one in which the height is adjusted by adjusting each adjusting screw.

[0005]

However, in the adjusting device for tightening the fixing screw (60) shown in FIG. 5, the base pipe (56) is not provided.
It is necessary to tighten the fixing screw (60) while supporting the movable pipe (58), and it takes time to adjust the height.

In the case of a device for adjusting the height by inserting a through pin into the through hole, the height can be adjusted only in steps, and fine adjustment is impossible. In the adjusting device in which the adjusting screw is provided on the back surface of the base (54), the height of the base (54) from the floor surface is increased because a margin for attaching the adjusting screw is required, so that a visitor, etc. However, there is a risk that the user may accidentally catch a foot, and the amount of height adjustment is limited.

The present invention has been made in view of the above-mentioned problems of the prior art, and has excellent operability at the time of height adjustment, and has a height-adjustable column. It is an object of the present invention to provide a height adjusting device.

[0008]

The present invention solves the above-mentioned problems as follows. (1) A screw having a threaded portion formed at the lower end and the upper end thereof is erected on a base support placed on the floor surface, and an adjusting nut is screwed into a threaded portion at the lower end of the screwed rod. The main support is inserted in a shape, and the lower end of the main support is supported by the adjusting nut, and a cap is screwed and attached to a screw portion at an upper end of the screw rod, and the main support is connected to the adjusting nut and the cap. By rotating the adjusting nut, the main column is raised and lowered to adjust the height.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a support provided with a height adjusting device according to the present invention.

FIG. 1 is a longitudinal sectional view of a column provided with a height adjusting device of the present embodiment, FIG. 2 is a perspective view of a main part of the height adjusting device, and FIG. 3 shows the entire column of the present embodiment. It is a perspective view.

As shown in FIG. 1, this embodiment comprises a base support (10), a screw (12), a grip (14), a main support (14), and a main support (10).
(16), a support base (18), an adjusting nut (20) and the like.

The base support (10) is a support (1) having a rectangular shape.
8) It is fixed on the floor and is erected on the floor by the support base (18). As shown in FIG. 2, the base support (10) is formed by fixing a vertical cylindrical portion (10b) to a base (10a) formed in a semi-conical shape, and a central portion of the cylindrical portion (10b). A threaded rod (12) pointing up and down is fixed.

An external thread (12a) is engraved below the screw rod (12), while an axial internal thread (12a) is formed from the upper end surface thereof.
b) is engraved. A circular adjusting nut (20) is screwed into the lower male screw (12a), and two engaging projections (20a) projecting diametrically around the outer periphery of the adjusting nut (20). I have.

Thus, the cylindrical grip (14) is fitted to the adjusting nut (20) and the cylindrical portion (10b) of the base post (10), and the lower end of the grip (14) is fitted to the base (10a). When supported, each engaging projection (20a) engages with two vertical grooves (14a) formed in the inner peripheral wall of the grip (14).

Therefore, when the grip (14) is rotated, the adjusting nut (20) is simultaneously rotated, and the adjusting nut (20) is screwed up or down in accordance with the rotation direction. At this time, since the adjustment nut (20) is allowed to move up and down along the vertical groove (14a) inside the grip (14), the grip (14) itself does not move up and down.

The main support 16 has a pipe shape, and the screw rod 12 is inserted into the main support 16.
A guide tube (21) made of resin is located at the appropriate position inside the main support (16).
Is fixed and slides with the screw rod (12), thereby preventing rattling of the vertically moving screw rod (12) and guiding its movement. The lower end of the main column (16) is an adjustment nut
It is in contact with the upper surface of (20).

On the other hand, as shown in FIG. 1, a male screw rod (22a) integral with the cap (22) is screwed into the screw (12b) cut from the upper end surface of the screw rod (12). I have. As shown in FIG. 3, the main column (16) is normally held between the adjustment nut (20) and the cap (22).

Next, a method of using the column provided with the height adjusting device of the present embodiment configured as described above will be described.

First, as shown in FIG. 1, the cap (22) screwed on the upper part of the screw rod (12) is loosened, and the main column (1) is loosened.
6) Make it free. Next, the grip (14) is rotated in a direction in which the adjustment nut (20) is raised, and the main support (16) is gradually moved upward. At the desired height, the cap (22) is tightened, and the main support (16) is clamped and fixed between the cap (22) and the adjusting nut (20).

Conversely, when lowering the height of the column, the grip (14) is rotated so that the adjustment nut (20) is lowered, and the main column (16) is moved downward. When the desired height is reached, tighten the cap (22) and
Hold (16) and fix.

As described above, according to the present embodiment, the height of the main column (16) can be adjusted steplessly, so that the convenience in displaying panels and the like is remarkably improved. Further, since the column is expanded and contracted by rotating the grip (14), operability is improved.

A screw may be formed at the upper end of the screw rod (12) instead of the female screw (12b), and a female screw cylinder integral with the cap (22) may be screwed into the screw.

[0023]

According to the present invention, the following effects can be obtained. The height of the struts can be extended and contracted steplessly, and the operability is excellent. In addition, since the height of the base support from the floor surface can be low, the danger of mounting the support can be reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of a support provided with a height adjusting device according to an embodiment.

FIG. 2 is a perspective view of a main part of a height adjusting device applied to the column according to the embodiment.

FIG. 3 is a perspective view of a column according to the embodiment.

FIG. 4 is a side view showing a use state of a conventional column.

FIG. 5 is a perspective view of a main part of a conventional column.

[Explanation of symbols]

 (10) Base support (10a) Base (10b) Cylindrical (12) Screw (12a) Male (12b) Female (14) Grip (14a) Vertical groove (16) Main support (18) Support (20) Adjusting nut (20a) Engagement protrusion (21) Guide cylinder (22) Cap (22a) Male thread rod

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yukio Otsuka 79, Terashishi, Nishi, Kobashi, Miwa-cho, Kaifu-gun, Aichi Prefecture F-term in Tokai Screen Co., Ltd. (reference) 3J039 AA01 AB04 GA01

Claims (1)

[Claims] 1. A screw having a threaded portion formed at a lower end and an upper end is erected on a base support placed on a floor surface.
An adjusting nut is screwed into a screw portion at a lower end of the screw rod, a pipe-shaped main support is inserted into the screw, and a lower end of the main support is supported by the adjustment nut,
A cap is screwed and attached to the screw portion at the upper end of the screw rod, the main support is clamped between the adjustment nut and the cap, and the adjustment nut is rotated to raise and lower the main support to adjust the height. A support provided with a height adjusting device, characterized in that the support is provided.