JPS6127467Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to the structure of a desk height adjustment device that allows the height position of the desk top plate from the floor to be adjusted in stages. .

[Conventional technology]

Japanese Utility Model Publication No. 6-14819 discloses a prior art in which the height of a desk top plate can be adjusted step by step by detachably inserting a height adjustment plate into the upper end surface of a pair of left and right legs of a desk, etc. The leg body, the auxiliary leg that can be detachably placed on the upper end of the leg body, and the upper member are each provided with a through hole that communicates with the upper and lower sides, and the upper and lower longitudinal holes are inserted vertically from the lower end of the leg body. A technique is disclosed for fastening an arbitrary number of auxiliary legs and an upper member via bolts.

[Problem that the invention attempts to solve]

However, according to the prior art, the nut is fixed to the upper member and the bolt is inserted vertically from the lower end of the leg, so each time the auxiliary leg is attached or removed, the workability of the lower end of the leg is This will force you to turn the bolt in a bad spot.

Further, when a large number of auxiliary members are to be added, it is necessary to replace the bolts with longer ones, and in that case, it is necessary to turn the legs upside down.

On the other hand, in the case of sufficiently long bolts for a large number of auxiliary legs, in order to remove one auxiliary leg and use the same bolt to tighten, the height of the auxiliary leg from which the bolt was removed must be There was a problem in that the height adjustment workability was extremely poor from any point of view.

The object of the present invention is to provide a device that can solve the above-mentioned problems very easily.

[Means for solving problems]

Therefore, the present invention is configured such that the lower end surfaces of the left and right side plates supporting the left and right end portions of the desk top plate can be respectively placed on the upper end surfaces of the plate-shaped legs arranged at appropriate intervals on the left and right, A pair of left and right height adjustment plates having appropriate height dimensions can be removably inserted between the lower end surfaces of the left and right side plates and the upper end surfaces of the left and right legs, and are each provided with a female screw portion extending horizontally and communicating with the outer surface thereof, and upper and lower longitudinal connecting members are removably disposed on each outer surface of the side plate and the leg body, and each of the connecting members is provided with the height adjustment mechanism. A pair of upper and lower bolts that can be inserted into mounting holes drilled at each pitch of the plate height are removably screwed into each of the female threaded parts, thereby connecting the legs and the side plate via a connecting member. It is something.

[Functions and effects of the invention]

According to this configuration, the female threaded portions provided on the leg and the side plate above the leg are oriented laterally, and the bolt can be communicated with from the outside. The connecting members are removably disposed on the outer surfaces of the legs and the side plates. Therefore, all operations for attaching and detaching the connecting members and bolts can be performed from the outer side of the leg.

Furthermore, even if the height adjustment plate is added or removed, and the insertion point of the bolt in the connecting member changes, the depth of engagement of the bolt into the female threaded part of the leg and side plate does not change. The workability of tightening the bolts does not change and the work of attaching and detaching can be done quickly, and there is no need to prepare bolts of different lengths, which is a great advantage.

〔Example〕

To explain the present invention based on an embodiment in which the present invention is applied to a lighting view, reference numeral 1 is shown in the figure.
1 shows a lighting view consisting of an upper shelf part 5 placed on a leg part 2, and the leg part 2 has a pair of left and right plate-like legs 3, 3 arranged in parallel at appropriate intervals to form both left and right legs. A sleeve drawer 4 is provided between the legs 3 and 3, and the lower surfaces of the pair of left and right side plates 6, 6 of the upper shelf 5 can be placed on the upper end surfaces of the legs 3, 3 of the legs 2, respectively. A desk top plate 7 is attached to the lower end between the left and right side plates 6, 6 so that it can be flipped up and rotated, and above the desk top plate 7, lighting equipment 8, shelf boards 9, 9, etc. are arranged. .

Reference numeral 10 denotes the upper end surfaces of the pair of left and right plate-like legs 3, 3 in the leg portion 2 and the pair of left and right side plates 6, 6.
The first and second stage height adjustment plates have an appropriate height dimension (h) that can be stacked removably between the lower end, and the upper end surfaces of both the left and right legs 3, 3 are provided with an appropriate distance apart from the front and back. A pair of front and rear engaging protrusions 11, 11 are provided to protrude upward.

Both engagement protrusions 11 are engagement holes 1 provided in the lower end surfaces of the first stage height adjustment plate 10, the second stage height adjustment plate 10, and the left and right side plates 6, 6 of the upper shelf section 5, respectively.
2, 13, and 14, respectively.

Similarly, a pair of front and rear engaging protrusions 15, 1 are provided upwardly projecting on the upper end surface of the first stage height adjusting plate 10.
5, and the pair of front and rear engagement protrusions 16, 16 provided upwardly protruding from the upper end surface of the second stage height adjustment plate 10 are also engaged with each of the height adjustment plates 10 and side plates 6 located above the respective engagement projections 16, 16. It is constructed so that it can fit into each of the holes 12, 13, and 14.

Therefore, each of the engagement protrusions 11, 15, 16 and the engagement holes 12, 13, 14 are provided with their axes aligned in the vertical direction.

Reference numerals 17, 17 refer to front and rear longitudinal parts that connect the outer surfaces of the pair of left and right plate-shaped legs 3, 3 of the leg portion 2 and the outer surfaces of the pair of left and right side plates 6, 6 of the upper shelf portion 5, respectively. A pair of connecting members, each connecting member 1
7 has mounting holes 18, 19, 2 with pitches described later.
0,21 are drilled.

On the other hand, from the back surfaces of the legs 3, 3 and the left and right side plates 6, 6, the female screw portions 22 are mounted horizontally outward by embedding, etc., and the mounting holes 1 in the connecting members 17 are
The bolt 23 is inserted horizontally from the bolt 8 or the like and is removably engaged with the female threaded portion 22.

Reference numeral 24 denotes a vertically elongated guide groove for guiding the connecting member 17, and in this embodiment, a lower guide body 24a is provided on the outer surface of both the left and right leg bodies 3, 3.
An upper guide body 24b is provided on the outer surface of the side plate 6, and an intermediate guide member 24c having a length approximately equal to the height dimension (h) is provided on the outer surface of each intermediate height adjusting plate 10, 10.
24d so that they are aligned in a straight line.

As another embodiment, the side plate 6, the height adjustment plate 1
0. The guide grooves 24 may be formed directly on each outer surface of the leg body 3.

Attachment holes 18, 1 in each connecting member 17
The pitches of 9 and 20 are determined as follows.

That is, each female threaded portion 22 of the left and right legs 3, 3 is provided at a position below the upper end surface of the leg 3 by the dimension (a), and each female threaded portion 22 of the side plate 6 in the upper shelf portion 5 is provided.
is provided at a position above the lower end surface of the side plate 6 by a dimension (b), and the height dimension of each height adjustment plate 10 is (h), so that the mounting hole at the lower end of the connecting member 17 is A first mounting hole 19 and a second mounting hole 20 are bored upward from 18 at a distance (h) corresponding to the height of each of the first and second height adjustment plates 10. The vertical distance between the second mounting hole 20 and the mounting hole 21 with respect to the side plate 6 is (a+b).
So that it becomes.

Note that the height dimensions of the first and second height adjustment plates 10 may be different from each other, and it goes without saying that the height adjustment plates may be stacked in three or more stages.

Further, although not shown, unlike the embodiment described above, the upper guide body 24b of the side plate 6 is formed vertically and longitudinally, while the lower guide body 24b on the outer surface of the leg body 3
The vertical length of a is formed short, and the leg body 3 is always fastened to the 18 mounting holes at the lower end of the connecting member 17 with bolts 23, while the height adjusting plate 10 is inserted or removed. The connecting member 17 may be configured to move up and down while being guided by the upper guide body 24b.

With this configuration, in order to lower the height position of the desk top plate 7 of the writing view 1 by one level, first the bolts 23, 23 at the upper and lower positions on both the left and right sides are
, remove the connecting members 17, 17, and remove the upper shelf part 5.
is moved to another location, and then the pair of left and right second stage height adjustment plates 10 are removed.

Then, the left and right side plates 6, 6 of the upper shelf portion 5 are again placed on the upper end of the first stage height adjustment plate 10 on the leg body 3. At this time, the height adjustment plate 1 of the first stage
0 is fitted into the engagement hole 14 in the side plate 6. Next, the connecting members 1 on both the left and right sides
7 and 17 into the guide groove 24, and each connecting member 17
Insert the bolt 23 from the upper end mounting hole 21 in the side plate 6.
At the same time, the bolt 23 may be screwed into the female threaded portion 22 of the leg body 3 from the lower mounting hole 19.

When the first stage height adjustment plate 10 is also removed, the lower end surface of the side plate 6 is placed directly on the upper end surface of the leg body 3, and then the connecting member 17 is attached via the bolts 23, 23 in the same manner as described above. All you have to do is tighten it so that it cannot move up and down.

In addition, even if a biased load is applied, such as when a hand is placed on the front part of the desk top plate 7, the leg body 3 and the side plate 6 above it are connected via the connecting member 17 and the bolt 23. There are no accidents where they come loose from each other.

Furthermore, the leg body 3, the height adjustment plate 10, and the side plate 6
If each of the parts is provided with an engaging protrusion and an engaging hole that engage with each other so that they can be fitted freely, each member on the upper part will not accidentally fall off from the leg body, and the mutual positioning will also be possible. It becomes easy. Furthermore, if vertical and longitudinal guide grooves 24 are formed on the outer surfaces of the legs and side plates, the connecting members 17 will not protrude outward from the side surfaces and the aesthetics will not be impaired, and the positioning of the connecting members will be extremely easy. Become.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the lighting bottom, Fig. 2 is an enlarged side view of the main parts of the left and right side plates, Fig. 3 is a cross-sectional view taken along the - line of Fig. 2, and Fig. 4 is a perspective view of the lighting bottom. The figure is an enlarged sectional view taken along the line - in FIG. 2. 3... Leg body, 5... Upper shelf, 6... Side plate, 10
... Height adjustment plate, 17 ... Connection member, 18,1
9, 20, 21...Mounting hole, 22...Female thread part,
23...Bolt.

Claims (1)

[Scope of utility model registration request] The lower end surfaces of the left and right side plates supporting the left and right ends of the desk top plate are respectively placed on the upper end surfaces of the plate-shaped legs disposed at appropriate intervals on the left and right sides, and the lower end surfaces of the left and right side plates are configured to be able to be placed respectively. A pair of left and right height adjustment plates having appropriate height dimensions can be removably inserted between the upper end surfaces of the left and right legs, and each of the side plates and the legs has outer surfaces thereof. A female threaded portion that communicates with the side plate is provided horizontally, and vertical and longitudinal connecting members are removably provided on each outer surface of the side plate and the leg, and each connecting member is provided with a threaded portion for each pitch of the height adjustment plate height. The height of the desk is characterized in that the leg body and the side plate are connected via a connecting member by removably screwing a pair of upper and lower bolts into each of the female threaded portions, which can be inserted into mounting holes drilled in the body. Regulator.