JP3193129U - Height adjustment means - Google Patents

Abstract

[PROBLEMS] To adjust the height of a table, desk, or other leg from the floor surface in a simple and safe operation without taking time, and to obtain a stable support without tilting the top plate. Provided is an adjusting means. A lower support leg is a hollow tubular body, and is positioned below and in contact with a floor surface. The adjustment ring 20 is integrally formed at the upper end with a protruding edge portion 21 in contact with the upper end edge portion of the lower support leg 10 and inserted into the lower support leg 10. Further, a plurality of engagement blocks 22 arranged in a plurality along the axial direction are integrally formed at opposing positions on the inner wall of the adjustment ring 20. A plurality of groove portions 221 are formed in the engagement block 22. Therefore, the engagement block 22 has a slight compressibility. A plurality of anti-slip ridges 23 that extend along the axial direction are integrally formed on the outer peripheral surface of the adjustment ring 20 so that an operation of rotating by hand can be reliably performed. However, it may be a ridge extending along the circumference or an anti-slip surface that does not form a ridge.
[Selection] Figure 3

Description

  The present invention relates to a height adjusting means for adjusting the height of a leg of a table, desk or the like from a floor surface with a simple operation.

  In conventional tables, desks, etc., the height of the legs from the floor is fixed and cannot be adjusted. For this reason, it is obviously inconvenient to provide to places where students, workers, deskworkers, etc. are active. Therefore, the industry has developed legs that can be adjusted in height according to the table, the place where the desk is used, and the specifications required.

  Legs that can be adjusted in height, such as tables and desks, must take into account the function of raising and lowering the members and the stability of support for the top plate. A conventional leg is composed of a sleeve and a support tube. The support tube is provided with a metal sphere supported by an elastic body, and the sleeve is formed with a plurality of positioning holes into which the metal sphere is fitted. To do. In the operation of adjusting the height, the metal sphere is pressed and pressed with a finger, the elastic body is compressed and the sphere is pushed in, and the sleeve is moved up and down to adjust the height. However, such an operation cannot be easily performed and there is a risk of damaging the finger.

  In view of the above-mentioned drawbacks, screw-type height adjusting means have been developed. That is, the sleeve and the support tube that supports the sleeve are respectively screwed, and the sleeve is rotated to adjust the height of the leg. However, when the sleeve is rotated, if too much force is applied, the sleeve moves excessively and takes time to adjust the height. Moreover, it is difficult to adjust all the four legs to the same height, and the top plate is inclined, which is inconvenient in use.

  Various styles of means for adjusting the height of legs such as tables and desks have been developed. However, all are screw type, positioning by means of a metal sphere, press-fitting, or engagement. It remains in the category.

  This device is a simple and safe operation that can adjust the height of the legs of tables, desks, etc. from the floor surface without spending time, and can provide stable support without tilting the top plate. It is an object to provide an adjustment.

  Therefore, as a result of intensive research in view of the drawbacks found in the prior art, the inventor has a hollow tube body, a lower support leg whose lower end is in contact with the floor surface, and an upper end edge of the lower support leg. An abutment portion is formed integrally with the inner wall and an engagement portion is formed on the inner wall, and an adjustment ring inserted into the lower support leg and positioning for attaching to the bottom surface of the table or desk top plate In a height adjusting means comprising a board at the upper end and forming at least one positioning adjustment member on the outer peripheral surface, the adjustment ring and an upper support leg inserted into the lower support leg, The engagement portion of the adjustment ring is at least one engagement block, and the positioning adjustment member of the upper support leg is a contact surface arranged along the axial direction, and between the two contact surfaces And a slide is formed on the outer peripheral surface of the upper support leg. Height focuses at a point which can solve the problem by adjusting means comprising, and completed the present invention based on the finding. This device will be described below.

The height adjusting means according to claim 1 is a hollow tube body, and a lower support leg whose lower end is in contact with the floor surface, and a protruding edge part are integrally formed in contact with the upper end edge part of the lower support leg. And an engaging portion formed on the inner wall, an adjustment ring inserted into the lower support leg, and a positioning board for attaching to the bottom surface of the table or desk top plate are formed at the upper end, and the outer peripheral surface At least one positioning adjustment member, and a height adjustment means comprising the adjustment ring and an upper support leg inserted into the lower support leg,
The engagement portion of the adjustment ring is at least one engagement block,
The upper support leg positioning adjustment member is a contact surface arranged along the axial direction, and a fitting space is formed between the two contact surfaces, and a slide is placed on the outer peripheral surface of the upper support leg. Form.

  According to a second aspect of the present invention, the height adjusting means forms an arc-shaped concave groove at the bottom of the engagement block according to the first aspect, and forms a convex portion at a position corresponding to the concave groove on the contact surface. .

  According to a third aspect of the present invention, there is provided the height adjusting means according to the first aspect, wherein the engaging portions are a plurality of engaging blocks arranged along the axial direction, and are arranged at opposing positions on the circumference. .

  According to a fourth aspect of the present invention, the height adjusting means forms a plurality of grooves in the engagement block according to the first aspect.

  According to a fifth aspect of the present invention, in the height adjustment means, the contact surface of the positioning adjustment member according to the first aspect is a rectangular frame, and a plurality of grooves are formed in the frame.

  According to a sixth aspect of the present invention, in the height adjusting means, the positioning adjusting member according to the first aspect is formed by being arranged at respective positions on the circumference that oppose each other on the upper support leg, and an arrangement of both positioning adjusting members. A smooth slide surface is formed between the two.

  According to a seventh aspect of the present invention, in the height adjusting means according to the first aspect, in one arrangement of the adjusting members, a contact strip extending in the axial direction is formed on one side.

  The height adjusting means described in claim 8 is provided with a convex block at the bottom end of the upper support leg in claim 1 that is elastically compressible.

  The height adjusting means described in claim 9 forms an anti-slip ridge on the peripheral surface of the adjusting ring in claim 1.

It is the perspective view which showed the usage condition which applied the height adjustment means by this invention to the table. It is the perspective view which showed the state which assembled the height adjustment means by this device. It is an exploded view of the height adjustment means disclosed in FIG. It is the perspective view which looked at the height adjustment means disclosed in FIG. 2 from another angle. It is sectional drawing which showed the structure of the height adjustment means heel cross section disclosed in FIG. It is explanatory drawing which showed the relationship of engagement in the upper support leg, lower support leg, and adjustment ring in this device. It is explanatory drawing which showed the operation | movement of the lock in this device. It is explanatory drawing which showed the state of the lock | rock in this device. It is explanatory drawing from the side surface which showed the usage aspect of the height adjustment means by this invention.

  This device is a simple and safe operation that can adjust the height of the legs of tables, desks, etc. from the floor surface without spending time, and can provide stable support without tilting the top plate. A lower tubular body having a lower end in contact with the floor surface, and a projecting edge formed integrally with the upper end edge of the lower support leg. An engaging portion is formed on the inner wall, an adjustment ring inserted into the lower support leg, and a positioning board for attaching to the bottom surface of the table or desk top plate are formed at the upper end, and at least one on the outer peripheral surface. In the height adjusting means that forms the above positioning adjustment member and includes the adjustment ring and an upper support leg that is inserted into the lower support leg, the engagement portion of the adjustment ring has at least one or more engagement portions. It is an engagement block, and the positioning adjustment members of the upper support leg are arranged along the axial direction. It is a contact surface, and to form a fitting space between the two contact surfaces, by forming a slide on the outer circumferential surface of the upper support legs. In order to describe in detail the structure and characteristics of the height adjusting means, a specific example will be given and described below with reference to the drawings.

  The height adjusting means according to the present invention includes a lower support leg 10, an adjustment ring 20, and an upper support leg 30, as disclosed in FIGS.

  The lower support leg 10 is a hollow tube body, and is located below and contacts the floor surface.

  The adjustment ring 20 is integrally formed at the upper end with a protruding edge portion 21 in contact with the upper end edge portion of the lower support leg 10 and inserted into the lower support leg 10. Further, a plurality of engagement blocks 22 arranged in a plurality along the axial direction are integrally formed at opposing positions on the inner wall of the adjustment ring 20.

  A plurality of groove portions 221 are formed in the engagement block 22. Therefore, the engagement block 22 has a slight compressibility. A plurality of anti-slip ridges 23 that extend along the axial direction are integrally formed on the outer peripheral surface of the adjustment ring 20 so that an operation of rotating by hand can be reliably performed. However, it may be a ridge extending along the circumference or an anti-slip surface that does not form a ridge. Further, as disclosed in FIG. 6, an arcuate groove 222 is formed in the bottom of the engagement block 22.

  At the upper end of the upper support leg 30, a positioning board 31 for being screwed to the bottom surface of the top plate 40 is formed. Further, the upper support leg 30 is inserted into the adjustment ring 20 and the lower support leg 10. On the outer peripheral surface of the upper support leg 30, a plurality of positioning adjusting members 32 which are rectangular frames and whose outer surface is a contact surface 321 and which are arranged along the axial direction are formed. A groove 322 is formed in the frame of the positioning adjustment member 32. Therefore, it has some compressibility.

  Further, a fitting space 33 is formed between the two contact surfaces 321, and a convex portion 323 is formed on the contact surface 321 as disclosed in FIG. 6. The convex portion 323 is formed at a position corresponding to the concave groove 222 of the engagement block 22.

  Further, the positioning adjustment member 32 is. They are formed at positions facing each other on the circumference of the outer peripheral surface of the upper support leg 30, and a smooth slide surface 34 is formed between the arrangements of both positioning adjustment members 32. Further, as disclosed in FIG. 4, a contact strip 35 extending in the axial direction is formed on one side of one positioning adjusting member 32.

  Two convex blocks 36 which are elastic and freely compressible are provided at the bottom end of the upper support leg 30. The convex block 36 is for preventing the adjustment ring 20 from falling off the upper support leg 30.

  The height adjusting means according to the present invention has the above-described structure, and when assembling, the positioning board 31 of the upper support leg 30 is screwed to the bottom surface of the top plate 40, and the convex blocks 36 of the upper support leg 30 are both provided. The adjusting ring 20 is inserted into the outer peripheral surface of the upper support leg 30 by compression. Further, the outer peripheral surface of the adjustment ring 20 is inserted from the upper end of the lower support leg 10, and the upper end of the lower support leg 10 is brought into contact with the protruding edge portion 21 of the adjustment ring 20 to complete the assembly. The upper support leg 30, the adjustment ring 20, and the lower support leg 10 may be completed in a manufacturing factory.

  As disclosed in FIGS. 5 to 9, when adjusting the height of a desk, table, etc. by operating the height adjusting means according to the present invention, the operation of rotating the adjustment ring 20 first to release the lock. I do. That is, the engagement block 22 is positioned on the slide surface 34 of the upper support leg 30 and can be adjusted to a required height in a short time in a state of being positioned on the slide surface 34. Therefore, the time for adjusting the height can be greatly shortened.

  Further, the adjustment ring 20 is rotated so that the engagement block 22 is fitted into the fitting space 33 of the upper support leg 30, and the concave groove 222 of the engagement block 22 and the convex portion 323 of the upper support leg 30 are formed. The contact surface 321 is used as a surface to be supported by the engagement block 22 by being engaged and positioned. In this state, the locking and positioning operations are completed. Therefore, the positioning operation can be performed in a short time.

  Further, a contact strip 35 is formed on one side of the adjustment positioning member 32 on the upper support leg 30. This is for the purpose of protection, and when the adjustment ring 20 is rotated excessively, the engagement block 22 is prevented from coming into contact with the contact strip 35 and continuing to rotate. Therefore, it is possible to prevent a situation in which the adjustment ring 20 is idle and cannot be accurately positioned.

  In this device, a slide surface 34 is formed on the upper support leg 30 to provide height adjustment. Therefore, when the adjustment ring 20 is rotated, the adjustment ring 20 moves quickly in the vertical direction. In the conventional screw type, the height is adjusted by slowly rotating. Therefore, the time required for the height adjustment operation can be shortened. Further, after the engagement block 22 is positioned and supported by the positioning adjusting member 32 and positioned, an extremely stable lock shape is obtained, and there is no possibility that the lock is unexpectedly released. Moreover, safe height adjustment can be achieved without damaging the finger as in the conventional method of pushing in a metal sphere.

  The above is a preferred embodiment of the present invention, and does not limit the scope of the implementation of the present invention. Therefore, modifications or changes that can be made by those skilled in the art, and made within the spirit of the present invention. Anything that has an effect equivalent to this device shall belong to the scope of the claims for utility model registration of this device.

DESCRIPTION OF SYMBOLS 10 Lower support leg 20 Adjustment ring 21 Protruding edge part 22 Engagement block 221 Groove part 222 Groove part 23 Non-slip protrusion 30 Upper support leg 31 Positioning board 32 Positioning adjustment member 321 Contact surface 322 Groove part 323 Convex part 33 Fitting space 34 Slide surface 35 Contact strip 36 Convex block 40 Top plate

Claims (9)

A lower support leg that is a hollow tubular body, the lower end of which is in contact with the floor surface;
An adjustment ring that integrally forms a projecting edge portion that contacts the upper edge of the lower support leg and has an engagement portion on an inner wall and is inserted into the lower support leg;
An upper support having a positioning board for attaching to the bottom surface of the table or desk top and having at least one positioning adjusting member on the outer peripheral surface, and being inserted into the adjusting ring and the lower support leg. A height adjusting means comprising a leg,
The engagement portion of the adjustment ring is at least one engagement block,
The upper support leg positioning adjusting member is a contact surface arranged along the axial direction, and has a fitting space between the two contact surfaces, and a slide surface is provided on the outer peripheral surface of the upper support leg. A height adjusting means comprising:   The height adjusting means according to claim 1, wherein the bottom of the engagement block has an arc-shaped concave groove, and has a convex portion at a position corresponding to the concave groove of the contact surface.   2. The height adjusting means according to claim 1, wherein the engaging portions have a plurality of engaging blocks arranged along the axial direction and are arranged at opposing positions on the circumference. .   The height adjusting means according to claim 1, wherein the engaging block has a plurality of grooves.   The height adjusting means according to claim 1, wherein the contact surface of the positioning adjusting member is a rectangular frame, and the frame has a plurality of grooves.   2. The positioning adjusting member according to claim 1, wherein the positioning adjusting members are arranged at respective positions facing each other on the circumference of the upper support leg, and have a smooth slide surface between the arrangements of both positioning adjusting members. The height adjusting means described.   The height adjusting means according to claim 1, further comprising a contact strip extending in the axial direction on one side of the one array of the adjusting members.   2. The height adjusting means according to claim 1, wherein the bottom end of the upper support leg has a convex block which is elastic and can be freely compressed.   The height adjusting means according to claim 1, further comprising an anti-slip ridge on the peripheral surface of the adjusting ring.

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