JPH0617537U - Height adjustment device for tables - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the leg seat from colliding with other objects and damage it, and to improve the appearance. [Structure] By rotating the leg seat 12 and the screw rod 13 with respect to the adjuster 3, the height of the leg rod 1 can be adjusted,
Further, the leg seat 12 is protected by a protective edge 10 vertically extending from the lower surface of the flange portion 8 of the adjuster 3, so that the user's shoes and other objects may collide with the leg seat 12 or the leg seat 12 may be damaged. When folded, the leg seat 12 may collide with the bottom surface of the top plate, etc.
It is possible to prevent damage to itself and the top plate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a height adjusting device that adjusts the height and level of a table or the like and has a good appearance.

[0002]

[Prior art]

 A conventional height adjusting device for adjusting the height and level of a table or the like is usually one in which a lower end of a square rod is fitted with an adjusting tool having a vertical screw hole in the center, and the screw hole is rounded. The height of the plate-like leg seat is adjusted by inserting a screw rod protruding from the center of the upper surface of the leg seat (see Japanese Utility Model Laid-Open No. 48-10759).

[0003]

[Problems to be solved by the device]

 However, in the conventional device, the leg seat is largely exposed to impair the appearance of the table, and the user may accidentally hit the leg of the shoe or chair and damage the shoe or the adjuster into which the screw is inserted. .

Further, in a table in which the upper end of the lever rod is pivotally attached to the lower surface of the top plate so that the leg rod can be folded parallel to the lower surface of the top plate, when the lever rod is roughly folded, the leg degree is lowered. It may be damaged by hitting the bottom surface of the top plate or the side frame that supports the top plate.

Further, with long-term use, the lower end opening of the leg rod may expand or the adjuster may shrink, causing the adjuster to fall off the leg rod.

An object of the present invention is to provide a height adjusting device that does not cause such an accident and has a good appearance.

[0007]

[Means for Solving the Problems]

 According to the present invention, the lower end of the rectangular cylindrical play is oriented in the vertical direction, and the lower end has a flange that abuts against the lower end of the lever rod. At the appropriate side edge part, fit the adjusting tool with the inner surface curved in an arc centered on the screw hole, and the protective edge is hung, and the screw hole of the adjusting tool is disk-shaped and has a diameter. The above problem is solved by the fact that a screw rod standing upright in the center of the upper surface of the leg seat having a diameter slightly smaller than the inner diameter of the guard edge is inserted.

[0008]

[Action]

 In the device of the present invention, the height of the table or the like is adjusted by rotating the leg seat as in the conventional device.

However, since the leg seat is covered by the protective edge, it has a good appearance, and there is no risk of the user's shoes or chair legs directly hitting the leg seat. The legs do not damage the top plate when it strikes the underside of the top plate.

[0010] Furthermore, by engaging both engaging pieces projecting upward on the flange portion of the adjusting tool with the two concave grooves formed on both side surfaces of the leg rod, the device can be used for a long time and the leg can be used for a long time. Even if the adjustment tool inside the rod is loosened, the engaging pieces that sandwich the leg rod prevent the adjustment tool from rattling, and prevent it from falling off the leg rod.

[0011]

【Example】

 The drawings show an embodiment of the present invention, in which the left and right side surfaces of the drawing (hereinafter, left and right directions refer to the drawing) of a substantially rod-shaped leg rod (1) of a table (not shown), A groove (2) is formed over the entire length, and an adjusting tool (3) made of synthetic resin as described below is fitted on the lower end of the leg rod (1).

A cylindrical portion (4) having a bottom, which has a planar shape substantially the same as the inner surface shape of the leg rod (1) and is slightly smaller, has a columnar portion slightly to the right of the center. (5) is erected, and a screw hole (6) is formed in the center of the columnar part (5).

On the peripheral surface of the cylindrical portion (4), a plurality of protruding ridges (7) directed in the up-down direction are projected, and at the lower end, a flat shape is almost the same as the outer surface shape of the leg rod (1). Large flange part (8) is connected.

Engaging pieces (9) are erected on both left and right upper surfaces of the flange portion (8), and a protective edge whose inner surface is curved in an arc centered on the screw hole (6) is provided on the left lower surface of the flange. (10) is provided vertically, and a small ridge (11) directed vertically is provided on the outer peripheral surface thereof.

In the adjuster (3), the tubular portion (4) is fitted into the lower end of the leg rod (1), and the ridge (7) on the outer peripheral surface is pressed against the inner surface of the leg rod (1). The flange portion (8) abuts on the lower end surface of the leg rod (1), and each engaging piece (9) engages with the groove (2) of the leg rod (1).

A screw rod (13) which is erected upright from the bottom in the center of the upper surface of a horizontal disc-shaped leg seat (12) is screwed into the screw hole (6), and the diameter of the leg seat (12) is The diameter is smaller than the inner diameter of the protective edge (10), and the thickness above and below is slightly thicker than the vertical width of the protective edge (10).

In the above-described device of the present invention, the height of the table is adjusted by rotating the leg seat 12 as in the conventional device.

Further, the engaging piece (9) of the adjusting tool (3) which engages with the concave groove (2) of the leg rod (1) clamps the leg rod (1) from both sides, and the long-term It prevents the adjustment tool (3) from rattling and falling off from the rod (1).

[0019]

[Effect of device]

 In the device of the present invention, the leg seats are covered by the protective rim, so that the user can inadvertently hit the shoes or chair legs against the leg seats without damaging the appearance of the table, and wear the shoes or adjusters. There is no damage.

When the table is a foldable type, if the protective edge is directed toward the direction in which the leg rods are folded, the protective edge will collide with the lower surface of the top plate even if it is folded roughly, so the top plate will not be damaged. Absent.

Further, if the engaging piece of the adjusting tool engages with the groove of the leg rod so as to sandwich the leg rod from both sides, even if the device is used for a long period of time, the adjusting tool will be inside the leg rod. It does not rattle and fall out.

[Brief description of drawings]

FIG. 1 is an exploded front view of a central longitudinal section of an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a view taken along the line BB of FIG.

FIG. 4 is a view taken along the line CC of FIG.

[Explanation of symbols]

(1) Leg rod (2) Recessed groove (3) Adjuster (4) Cylindrical part (5) Columnar part (6) Screw hole (8) Projection (8) Flange part (9) Engagement piece (10) Protective edge (11) Small ridge (12) Leg seat (13) Screw rod

Claims (2)

[Scope of utility model registration request] 1. A rectangular tubular leg rod has a lower end provided with a flange facing up and down and abutting against the lower end of the leg rod, and a vertical screw hole is bored from the lower face, and a lower face of the flange portion. In an appropriate side edge portion of, an adjusting tool having an inner surface in which a protective edge curved in an arc centered on the screw hole is hung is fitted,
A height adjusting device for a table or the like, characterized in that a screw rod formed in a disc shape and having a diameter slightly smaller than the inner diameter of the protective edge is erected at the center of the upper surface of the leg seat, and is erected in the screw hole of the adjuster. . 2. A table or the like according to claim 1, wherein concave grooves are formed on both side surfaces of the leg rod, and engaging pieces engaging with the concave grooves are provided on both side surfaces of an upper surface of the flange of the adjusting tool so as to project upward. Height adjustment device.