JPH0426031Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present application relates to a height adjustment device disposed on the underside of furniture or the like.

BACKGROUND TECHNOLOGY Conventionally, as an adjustment device that is disposed on the underside of furniture to adjust its height, there is a fixing member that is fixed to the underside of the furniture and has a nut member embedded therein that opens at the underside, and an adjuster that is installed upright on a leg seat that contacts the floor surface and is integrally provided with a screw shaft that is screwed into a nut member of the fixing member; by rotating this adjuster, the fixing member A height adjusting device for furniture, etc., configured to adjust the height by raising and lowering the height of the furniture is known, for example, from Japanese Utility Model Publication No. 49-40865.

Problems that the invention aims to solve By the way, according to the above-mentioned conventional height adjustment device, when the adjuster is rotated to adjust the height, the leg seat that contacts the floor also rotates, causing the furniture itself to rotate. move on the floor, which causes the inconvenience of having to align the furniture again after adjusting the height. Also, if the furniture is heavy, a large frictional force is generated between it and the floor, causing the adjuster to move. There were some inconveniences such as interfering with rotational operation.

Means for Solving the Problems Therefore, the present application provides a fixing member that is fixed to the lower surface of a furniture body and is made of a shaft cylinder that has a threaded portion on the inner or outer periphery, and a screw that is screwed into the threaded portion. an operating tube, which has an engaging protrusion on the inner periphery of the lower part and an operating part on the outer periphery of the lower part; The above-mentioned inconveniences are solved by providing a height adjustment device for furniture, etc., characterized in that it is composed of a leg seat member that rotatably supports the operation tube by integrally standing up a fitting tube to be fitted thereto. This is what I did.

Function: The fixing member is fixed to the lower surface of the furniture body, and the operating barrel is screwed and connected to the inner or outer periphery of the shaft barrel, and then the leg seat member is fitted to the engagement protrusion of the operating barrel. The height adjusting device of the present invention is attached to the lower surface of the furniture body by fitting the mating tubes.

When the operating barrel is rotated from this state via the operating section, the operating barrel rotates horizontally on the leg seat member and the fixing member moves up and down, thereby adjusting the height position of the furniture body.

Example Hereinafter, embodiments of the present application will be described in detail with reference to the drawings.

Reference numeral 1 indicates a fixing member fixedly installed on the lower surface of the furniture main body A, and the fixing member 1 has an insertion hole 2 in the center and a lower surface of a flat mounting plate 4 with a positioning pin 3 protruding from the upper surface. is integrally provided with a shaft cylinder 6 having a sawtooth threaded portion 5 with an inclined upper surface of the threaded portion on the outer peripheral surface thereof, and the mounting hole 7 is inserted into a positioning hole 7 drilled in the lower surface of the furniture body A. The furniture is assembled by fitting the positioning pin 3 of the plate 4, and screwing and tightening the headed bolt 8 inserted into the insertion hole 2 from inside the shaft cylinder 6 into the nut member 9 buried in the lower surface of the furniture main body A. Fixed to main body A. Reference numeral 10 designates an operating cylinder having a sawtooth threaded portion 11, preferably with an inclined lower surface of the threaded portion, which is screwed into the threaded portion 5 of the fixing member 1 on the inner circumferential surface of the upper part, and the outer surface thereof is formed at the lower end. It has a taper so that the diameter becomes slightly smaller toward the lower end, and an annular engagement protrusion 12 formed by bulging the inner circumferential surface toward the center is formed inside the lower end, and an annular engagement protrusion 12 is formed on the outer circumferential surface of the lower end. , as shown in FIG. 4, rotation operating portions 10' each having a hexagonal shape, for example, are formed.

As is clear from FIG. 2, reference numeral 13 denotes an engagement protrusion 12 formed at the lower end of the operation tube 10 via a step 18 on the upper part of the disc-shaped bottom plate 14 that comes into contact with the floor surface.
A leg seat member is shown in which a fitting cylinder 15 that is rotatably fitted in the fitting cylinder 15 is integrally installed, and the fitting cylinder 15 has a locking part 16 having an inclined part 17 integrally formed on the outer periphery of the upper end thereof. It is bulged out, and a plurality of slits 19 are provided around the periphery, extending in the vertical direction and opening at the top surface.
The outer diameter of the locking portion 16 is slightly larger than the inner diameter of the engagement protrusion 12 of the operation barrel 10. 20 connects the leg seat member 13 to the operation tube 10
The step part 18 is made of, for example, a material with excellent lubricity and is fitted onto the outer periphery of the stepped part 18 so as to be interposed between the lower surface of the leg seat member 13 and the upper surface of the bottom plate 14 of the leg seat member 13 when the leg seat member 13 is fitted into the step part 18. It is a spacer ring.

However, when attaching the adjusting device of the present invention to the lower surface of the furniture body A, first fit the positioning pin 3 of the fixing member 1 into the positioning hole 7 of the furniture body A, and then insert the insertion hole of the mounting plate 4 from inside the shaft tube 6. The fixing member 1 is fixed to the furniture body A by screwing the headed bolt inserted through the bolt 2 into the nut member 9 of the furniture body A and tightening it. Next, the operating barrel 10 is screwed onto the outer periphery of the shaft barrel 6 of the fixed member 1, and the leg seat member 13 is inserted from the lower surface of the operating barrel 10 via the spacer ring 20.
The fitting cylinder 15 is press-fitted into the inner hole of the engaging protrusion 12.
Then, the inclined part 17 of the locking part 16 of the fitting cylinder 15 comes into pressure contact with the inner periphery of the engaging protrusion 12 of the operating cylinder 10 and is pressed inward, and the fitting cylinder 15 is pushed inward through the slit 19. The locking portion 16 passes through the engagement protrusion 12 and protrudes from the upper surface thereof, and in this state, the locking portion 16 engages with the upper edge of the engagement protrusion 12 and the operation barrel 10 and the leg seat member 13 are rotatably connected, and the adjusting device of the present invention is constructed as shown in FIG.

When adjusting the height of the furniture main body A from the state shown in FIG.
Rotate with a necessary tool such as a spanner or manually. Then, the furniture main body A is raised and lowered through the screw engagement between the fixing member 5 and the operation cylinder 11, and the height of the furniture main body A is adjusted. In this case, the leg seat member 13 does not rotate while being in contact with the floor surface.

FIG. 5 shows another embodiment of the present application, which differs from the above-described first embodiment in that a screw member 105 is provided on the inner peripheral surface of the shaft cylinder 106 of the fixed member 101, and a threaded member 105 is provided on the outer peripheral surface of the operating cylinder 110. This embodiment is constructed by providing a threaded part 111 that is screwed into the threaded part 105 and screwed together, and its operation is the same as that of the first embodiment described above.

Effects of the Invention As described above, according to the present application, even if the operation tube is rotated to adjust the height of the furniture body, the leg seat member does not rotate while being in contact with the floor surface, so that the furniture body can be adjusted. There is no risk of it moving on the floor, the height can be adjusted with light force, and since the operating part is formed at the bottom of the operating tube, even if there is little distance between the furniture body and the floor, the operating tube can be adjusted easily. This has advantages such as the ability to easily rotate the operating barrel even when the screw is screwed onto the outer periphery or inner periphery of the shaft cylinder of the fixed member.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a partially longitudinally sectioned front view, FIG. 2 is a partially longitudinally sectioned exploded front view, FIG. 3 is a sectional view taken along the - line in FIG. 1, and FIG. 4 1 is a partially enlarged cross-sectional view in FIG. 1, and FIG. 5 is a partially longitudinally sectional front view corresponding to FIG. 1 showing another embodiment. In the figure, 1,101 is a fixed member, 5, 11, 11
1 is a threaded part, 6, 106 is a shaft cylinder, 10, 110 is an operation cylinder, 10' is a rotation operation part, 12 is an engagement protrusion,
13 is a leg seat member, 14 is a bottom plate, 15 is a fitting tube, 1
7 is an inclined part, 19 is a slit, 20 is a spacer ring, and A is a furniture body.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) On the lower surface of a mounting plate fixed to the lower surface of the furniture main body, the mounting plate has an insertion hole for inserting a headed bolt for mounting on the upper surface and a positioning pin. A fixing member integrally provided with a shaft cylinder having a threaded portion on the outer periphery, a threaded portion that engages with the threaded portion on the outer periphery or inner periphery, and an engaging protrusion on the lower inner periphery. an operating tube each having an operating section on the bottom, and a fitting tube that fits into the engaging protrusion on the upper surface of the bottom plate that contacts the floor, which are integrally erected to rotatably support the operating tube. A height adjustment device for furniture, etc., comprising a leg seat member. (2) The height adjusting device for furniture according to claim 1, wherein the fitting cylinder has an inclined member and a slit. (3) A height adjusting device for furniture, etc., as set forth in claims 1 and 2 of the utility model registration claim, which comprises a spacer ring interposed between the lower surface of the operation cylinder and the upper surface of the bottom plate.