KR102317308B1 - Vertical fixed type leg height adjustment apparatus and desk having the same - Google Patents

Abstract

The present invention relates to a vertically fixable type leg height adjustment apparatus and a desk having the same, which may comprise: a first leg frame in which a plurality of first fixing holes are formed at one end in a longitudinal direction; a second leg frame which has the first leg frame inserted therein to be coupled to enable height adjustment, and has a second fixing hole disposed to be connected to some of the first fixing holes; a fixing bracket which is installed at the second leg frame, and allows the first and second leg frames to maintain the state in which the height is adjusted by means of a fixing protrusion inserted to be detachable to the first fixing hole through the second fixing hole; and a cover which is installed at the circumference of the second leg frame so as to surround the fixing bracket. Therefore, according to the present invention, the fixing force after the height adjustment between leg frames becomes solid, so as to prevent undesirable falling of the upper plate to enable safe use. Furthermore, control for height adjustment can be easily performed, and convenience in use can be increased by conveniently checking the height.

Description

Vertical fixed type leg height adjustment apparatus and desk having the same}

The present invention relates to a device for adjusting the height of a leg and a desk having the same, and more particularly, to a device for adjusting the height of a vertically fixed leg which is easy to operate for height adjustment, and to a desk having the same, so that the fixing force is strong after adjusting the height between the leg frames. it's about

In general, a desk (desk) is a furniture used to read a book, write, or perform various tasks, and is used in schools, academies, offices, homes, etc., usually a top plate and a leg provided on the bottom of the top plate is made including

Most of these desks have a structure in which the height cannot be adjusted because the legs are integrally fixed to the top plate. In this case, it is impossible to inevitably cause inconvenience due to height fixation from the standpoint of users with various body structures, even though it is necessary to adjust the height of the upper plate according to the type of work.

As such, due to the necessity of adjusting the height of the legs for the desk, various products have been developed and used to satisfy them. has been presented

In this prior art, in the mechanism for adjusting the height of the desk, the upper leg is accommodated at a variable height by interposing a guide on the lower leg in which a plurality of through holes are formed, but the upper leg is in a state in which the hooking piece is exposed to the outside. The guide is provided with a tangent to the inside, and the guide is elastically coupled by a tightening nut in the incision groove and spiral on the upper side, and has an incision groove so as not to block the through hole of the lower leg.

However, in this prior art, the locking piece protruding by the spring does not protrude properly, the spring is compressed due to the load of the upper plate, etc., and the locking piece is inserted. there was.

In addition, the prior art has a problem in use and application that frequently occurs when the locking piece does not protrude properly from the through hole due to the elastic force of the spring in the process of actual use, which frequently requires maintenance and repair.

In order to solve the problems of the prior art, the present invention enables safe use by preventing the upper plate from falling undesirably by making the fixing force strong after adjusting the height between the leg frames, and the operation for adjusting the height is easy In addition, it has the purpose of increasing the convenience of use through convenient confirmation of the height.

In order to solve the above problems, according to an aspect of the present invention, a first leg frame in which a plurality of first fixing holes are formed along the longitudinal direction at one end; a second leg frame coupled to be adjustable in length by being inserted into the first leg frame and provided with a second fixing hole for connecting to a part of the first fixing hole; A fixing bracket installed on the second leg frame and configured to maintain the length-adjusted state of the first and second leg frames by a fixing protrusion that is detachably inserted into the first fixing hole through the second fixing hole. ; and a cover installed around the second leg frame so as to surround the fixing bracket.

The fixing bracket may be rotatably installed on the second leg frame through the hinge coupling part by being hinged to the hinge coupling part provided at the end of the second leg frame.

The hinge coupling part may be hinged to the pin connection part of the fixing bracket by a hinge pin, and fixed to a protrusion formed at an end of the second leg frame by welding.

The hinge coupling part is hinged to the pin connection part of the fixing bracket with a hinge pin, and a bent part is provided to be caught on a protrusion provided at an end of the second leg frame, and the bent part is formed on both sides in a state in which the bent part is caught on the protrusion part. Fitting protrusions formed on both sides of the protrusion may be fitted into the fitting grooves.

The second leg frame has a plurality of second fixing holes for being respectively connected to a portion of the first fixing hole, and in the fixing bracket, the fixing protrusion is fixed to a part of the second fixing hole, and the fixing By forming a fastening hole corresponding to the second fixing hole into which the protrusion is not inserted, it can be screwed to the first fixing hole with a fixing bolt through the fastening hole and the corresponding second fixing hole.

In the first leg frame, a plurality of display portions having the same distance as the first fixing hole are provided on the side portion, and the second leg frame is provided with display holes for selectively exposing any one of the display portions to the outside. , to check the adjusted length with the first leg frame.

The cover is fitted downward from the upper side of the second leg frame and is caught on the upper end of the two-leg frame by a locking part provided at the upper end, and the fixing bolt passes through the bracket cover part located on the outside of the fixing bracket. An opening for the may be formed.

According to another aspect of the present invention, the top plate; and a vertically fixed leg height adjusting device according to an aspect of the present invention, provided in plurality on the lower surface of the upper plate and adjusting the height of the upper plate from the ground; a desk having a vertically fixed leg height adjusting device is provided. .

According to the vertical fixed leg height adjusting device and the desk having the same according to the present invention, by making the fixing force strong after adjusting the height between the leg frames, the upper plate prevents the upper plate from falling undesirably to enable safe use, and the operation for adjusting the height This is not only easy, but also has the effect of increasing the convenience of use through convenient confirmation of the height.

1 is a perspective view showing a desk having a vertically fixed leg height adjusting device according to an embodiment of the present invention;
Figure 2 is an exploded perspective view showing a vertical fixed leg height adjustment device according to an embodiment of the present invention,
Figure 3 is an exploded perspective view showing the vertical fixed leg height adjustment device in another direction according to an embodiment of the present invention,
4 and 5 are perspective views for explaining the assembly process of the vertical fixed leg height adjustment device according to an embodiment of the present invention,
6 is a cross-sectional perspective view showing a coupled state with or without a vertical fixed leg height adjustment device according to an embodiment of the present invention;
7 is a perspective view illustrating another example of a hinge coupling unit in the vertical fixed leg height adjusting device according to an embodiment of the present invention.

Since the present invention can have various embodiments with various modifications, specific embodiments will be described with reference to the drawings as an example. In addition, it should be understood that the present invention is not limited to these specific embodiments, and includes all modifications, equivalents or substitutes included in the technical spirit of the present invention.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings, and the same reference numbers are assigned to the same or corresponding components regardless of reference numerals, and overlapping description thereof will be omitted. do it with

1 is a perspective view showing a desk having a vertically fixed leg height adjusting device according to an embodiment of the present invention.

Referring to FIG. 1 , a desk 200 having a vertically fixed leg height adjusting device according to an embodiment of the present invention may include a top plate 210 and a vertically fixed leg height adjusting device 100 .

The upper plate 210 may be made of various materials including wood, synthetic resin, or stone.

1 to 6, the vertical fixed leg height adjusting device 100 is provided in plurality on the bottom surface of the top plate 210, in an embodiment of the present invention to adjust the height of the top plate 210 from the ground. As a vertically fixed leg height adjusting device according to the present invention, it may include a first leg frame 110 , a second leg frame 120 , a fixing bracket 140 , and a cover 160 . In addition, each of the vertically fixed leg height adjusting devices 100 may be connected to each other by a reinforcing frame 230 to have a reinforced structure.

A plurality of first fixing holes 111 are formed at one end of the first leg frame 110 in the longitudinal direction. Here, the first fixing holes 111 may be formed in plurality at equal intervals along the longitudinal direction on the side of the first leg frame 110 to perform the length adjustment of the legs by each selection.

In the first leg frame 110 , a plurality of display units 112 having the same interval as that of the first fixing hole 111 may be provided on the side. The display unit 112 may be engraved with not only numbers indicating the steps of length adjustment, but also various characters or figures that can identify the steps of length adjustment.

The second leg frame 120 is coupled so that the length can be adjusted by inserting the first leg frame 110 inside, and a second fixing hole 121 for connecting to a part of the first fixing hole 111 is provided. do.

The second leg frame 120 may have a plurality of second fixing holes 121 to be respectively connected to a portion of the first fixing holes 111 . Accordingly, the first and second fixing holes 111 and 121 are fitted with a plurality of fixing protrusions 142 together with the screw coupling of the first and second fixing holes 111 and 121 using fixing bolts 150 to be described later. can be made possible, and thereby, it is possible to enable a firm coupling between the first and second leg frames 110 and 120.

The second leg frame 120 has a display hole 122 for selectively exposing any one of the display units 112 to the outside, so that the adjusted length with the first leg frame 110 can be checked. That is, the display hole 122 exposes the display portion 112 of the first leg frame 110 inserted into the second leg frame 120 to the outside, thereby determining the position according to the inserted length of the first leg frame 110 . The different display unit 112 is selectively exposed to the outside, and through this, the degree of adjustment of the length of the leg can be recognized.

The fixing bracket 140 is installed on the second leg frame 120 , and the first and the first fixing protrusions 142 are detachably inserted into the first fixing hole 111 through the second fixing hole 121 . 2 so that the leg frame 120 maintains the length-adjusted state.

The fixing bracket 140 is hinged to the hinge coupling part 130 provided at the end of the second leg frame 120 to be rotatably installed on the second leg frame 120 via the hinge coupling part 130 as a medium. can

The fixing bracket 140 has a fixing protrusion 142 fixed to a part of the second fixing hole 121, and a fastening hole 143 matching the second fixing hole 121 into which the fixing projection 142 is not inserted. By forming this, it is possible to screw the first fixing hole 111 through the fastening hole 143 and the second fixing hole 121 corresponding thereto with the fixing bolt 150, and thereby the fixing bracket 140) It is possible to prevent unwanted separation from the second leg frame (120).

The hinge coupling part 130 may be hinged to the pin connection part 141 of the fixing bracket 140 by a hinge pin 131, and is welded to the protrusion 123 formed at the end of the second leg frame 120. can be fixed. Here, the hinge pin 131 may be prevented from being separated from the hinge coupling part 130 and the pin connection part 141 by the fixing piece 132 fastened to the end thereof.

The cover 160 is installed around the second leg frame 120 to surround the fixing bracket 140 . The cover 160 may be caught on the upper end of the second leg frame 120 by a locking part 161 provided at the upper end by being fitted downward from the upper side of the second leg frame 120, for example, as in this embodiment, and is fixed An opening 163 for penetrating the fixing bolt 150 may be formed in the bracket cover portion 162 positioned on the outside of the bracket 140 .

7 is a perspective view showing another example of the hinge coupling unit in the vertical fixed leg height adjustment device according to an embodiment of the present invention.

Referring to FIG. 7 , in this embodiment, the hinge coupling part 330 may be hinged to the pin connection part 341 of the fixing bracket 340 by a hinge pin 331 and a fixing piece 332 , and a second leg. A bent portion 333 for hooking on the protrusion 323 provided at the end of the frame 320 may be provided, and fitting grooves 334 formed on both sides in a state in which the bent portion 333 is caught on the protrusion 323 . The fitting protrusions 324 formed on both sides of the protrusion 323 may be fitted respectively.

According to the vertically fixed leg height adjusting device and the desk having the same according to the present invention, by making the fixing force strong after adjusting the height between the leg frames, the upper plate is prevented from falling undesirably, thereby enabling safe use.

According to the present invention, it is possible not only to facilitate the operation for adjusting the height, but also to increase the convenience of use through convenient confirmation of the height.

Although the present invention has been described with reference to the accompanying drawings as described above, various modifications may be made without departing from the spirit of the present invention. Accordingly, the scope of the present invention should not be limited to the above-described embodiments, but should be defined by the claims and their equivalents.

110: first leg frame 111: first fixing hole
112: display unit 120, 320: second leg frame
121: second fixing hole 122: display hole
123,323: protrusion 130: hinge coupling part
131: hinge pin 132: fixed piece
140,340: fixing bracket 141,341: pin connection part
142: fixing protrusion 143: fastening hole
150: fixing bolt 160: cover
161: locking part 162: bracket cover part
163: opening 200: table
210: top plate 220: horizontal bar
230: reinforcement frame 324: fitting projection
333: bent part 334: fitting groove

Claims (8)

a first leg frame having a plurality of first fixing holes formed at one end along the longitudinal direction;
a second leg frame coupled to enable length adjustment by being inserted into the first leg frame and provided with a second fixing hole for connecting to a part of the first fixing hole;
A fixing bracket installed on the second leg frame and configured to maintain the length-adjusted state of the first and second leg frames by a fixing protrusion that is detachably inserted into the first fixing hole through the second fixing hole. ; and
a cover installed around the second leg frame so as to surround the fixing bracket; and
The fixing bracket is
By being hinged to the hinge coupling part provided at the end of the second leg frame, it is rotatably installed in the second leg frame through the hinge coupling part,
The second leg frame,
A plurality of second fixing holes to be respectively connected to a portion of the first fixing hole are formed,
The fixing bracket is
The fixing protrusion is fixed to a part of the second fixing hole, and a fastening hole corresponding to the second fixing hole into which the fixing protrusion is not inserted is formed, so that the fastening hole and the corresponding second fixing hole are passed through the fastening hole. to be screwed into the first fixing hole with a fixing bolt,
The cover is
An opening for penetrating the fixing bolt into the bracket cover part which is fitted downward from the upper side of the second leg frame and is caught on the upper end of the second leg frame by a locking part provided at the upper end, and is located on the outside of the fixing bracket. is formed, the vertical fixed leg height adjustment device. delete The method according to claim 1,
The hinge coupling part,
A vertical fixing type leg height adjusting device that is hinged to the pin connection part of the fixing bracket by a hinge pin and fixed to a protrusion formed at an end of the second leg frame by welding. The method according to claim 1,
The hinge coupling part,
The fixing bracket is hinged with a hinge pin to the pin connection part of the fixing bracket, and a bent part is provided for hooking on the protrusion provided at the end of the second leg frame, and the bent part is provided in the fitting groove formed on both sides while the protrusion is caught on the protrusion. Vertically fixed leg height adjustment device so that fitting projections formed on both sides of the protrusion are fitted. delete The method according to claim 1,
The first leg frame,
A plurality of display portions having the same interval as the interval of the first fixing hole are provided on the side portion,
The second leg frame,
A display hole for selectively exposing any one of the display units to the outside is formed so that the adjusted length with the first leg frame can be confirmed. delete top plate; and
The vertical fixed-type leg height adjusting device according to any one of claims 1, 3, 4 and 6, which is provided in plurality on the bottom surface of the upper plate and adjusts the height of the upper plate from the ground;
Including, a desk having a vertical fixed leg height adjustment device.

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