JPS5829957Y2 - desk height adjustment device - Google Patents

Description

[Detailed description of the invention] This invention relates to the structure of a desk top height adjustment device for a wooden desk such as a study desk. The hand grip is fitted into the pair of legs so as to be slidable up and down, and is attached to the side plate of the top plate. The height position of the desk top can be arbitrarily adjusted by an extremely simple operation by retracting the coupling rod to release the connection between the desk top side plate and the legs.

Next, the present invention will be explained based on an embodiment drawing. In the drawing, 1 is a wooden study desk, and a pair of left and right legs 2.
The desk top plate 5 is configured to be movable up and down with respect to a base part that is connected to the base part with a side drawer 4 on the inner surface of the negative side thereof, and the left and right legs 2, 2 of the base part are U-shaped guide grooves 7, 7 each having an open top are formed, and a pair of sliding guide plates 8, 8 made of synthetic resin or the like are attached to the opposing vertical walls of each guide groove 7. is formed into a cross-sectional shape, while engaging holes 9 are bored vertically at an appropriate pitch P in the vertical sliding surface, and a corresponding hole is formed on the inside of each of the legs 2, 2. The plates 10 and 10 are each fixed with bolts.

On the other hand, side plates 6, 6 are provided downwardly on both the left and right sides of the top plate 5, and the left and right side plates 6, 6 are connected to the guide grooves 7 of the legs 2, 2.
, 7 so as to be in contact with the guide plates 8, 8, 8.8 so as to be able to slide up and down, and a hole 11 is formed in the center of the wide surface of each side plate 6 to communicate with the outer surface thereof. And the hand is in hole 11
A plate-shaped engaging/disengaging piece 12 that moves up and down is provided on the ceiling surface, and in conjunction with this up-and-down movement, a pair of front and rear engaging rods 13, 13 can be moved in and out of the retaining holes 9, 9 of the leg plate guide plate. In constructing the handholds of each side plate 6, a frame body 15 having U-shaped cross-sectional support portions 14 in 11 holes is fixed with screws 16 from the back side of the side plate 6, and the support portions 14 of the frame body 15 are Long slot holes 17.17 are bored in the upper and lower walls, and the long slot holes 17
A plate-like engagement piece 12 having a finger rest 18 at the lower part is inserted into the plate-like engagement piece 12 so as to be vertically movable. In other words, both guide holes 19, 19 are formed in a large upper and lower shape, and the bases of the pair of engagement rods 13.13 are fitted with pins 20.20 into the two inclined guide holes 19. The rod 13 is urged to protrude in the direction of the engagement hole 9 of the guide plate by the force of the spring 21.

Note that 22 and 22 are support members that fit and support the pair of engaging rods 13, 13, and 23 and 23 are left and right side plates 6, 6.
The handhold provided on the outer surface side of the handhold hole 11.11 is a single piece.

In this configuration, in order to change the position of the desk top plate 5 to an arbitrary height, the handholds on the left and right side plates 6, 6 of the desk top plate 5 must be placed in the hole 11.
．． 11 and press the finger against the lower surface of the finger rest 18 of each engaging/disengaging piece 12 to push up each engaging/disengaging piece 12, the pair of engaging rods 13, 13 will have their bases connected to the engaging/disengaging piece. Since the pins 20 and 20 are fitted into the inverted eight-shaped guide holes 19 and 19, they move closer to each other in response to the upward movement of the engagement and disengagement pieces, and the tips of the respective engagement rods 13 and 13 are connected to the legs. The body 2 can be disengaged from the engagement holes 9, 9, and when the finger is released from the engagement/disengagement piece 12 at the desired height position of the desk top plate 5, the force of the springs 21, 21 causes the engagement rods 13, 13 protrudes and can be engaged and held in the engagement holes 9, 9 at a predetermined height position.

In this way, according to the present invention, the left and right side plates of the desk top plate are fitted into the legs on the base side so as to be vertically slidable, and the retaining holes are bored at appropriate pitches in the upper and lower parts of the sliding parts of the legs. On the other hand, an engaging rod is provided on each side plate of the desk top plate so as to be able to move in and out of the retaining hole, and a locking piece that is interlocked and connected with the engaging rod is provided in a hand hole bored on the outer surface side of the side plate. Since the locking piece is provided on the ceiling so that it can move up and down, it can be moved upward from the outside of the side panel, so by hooking your finger on the locking piece and lifting it, you can lift the desk top plate in one operation. The engagement between the side plate and the legs can be disengaged, and the top plate can be reset to any desired height position with great ease. Since it is not exposed, there is no chance of the table top falling down due to unnecessary noise coming into contact with the locking piece.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a front view of the study desk, Fig. 2 is a left side view, Fig. 3 is a right side view, Fig. 4 is a front view of main parts, and Fig. 5 is a front view of the study desk. 4 is a cross-sectional view taken along the line ■-V, and FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 1... Study desk, 2, 2... Legs, 7,
7...Guide groove, 6゜6...Side plate, 8
, 8... Guide plate, 9, 9... Engagement hole, 13° 13... Engagement rod, 11.11...
・・Hand hole, 12.12・・・・Engagement piece, 19.1
9... Inverted eight-shaped guide hole, 20... Pin, 21° 21... Spring, 23, 23...
・Handle piece.

Claims (1)

[Scope of utility model registration request] The pair of left and right legs are each provided with a guide groove whose outer surface and upper part are open, and a pair of left and right side plates protruding downward from the desk top plate are fitted into each guide groove so as to be vertically slidable. In the sliding part between the side plate and the leg, fitting holes are formed on the leg side at appropriate pitches up and down, and engaging rods that can fit into the fitting holes are provided on the side plate side so that they can come out and go out freely. The handle provided on the outer surface of both side plates has an engaging piece on the ceiling surface of the hole that can be moved up and down, and an inclined guide hole is provided in the engaging piece, and the engaging rod is inserted into the inclined guide hole. A height adjustment device for a desk top board that engages a provided pin so that an engagement rod moves in and out by moving an engagement piece up and down.