JP3466247B2 - Frame desk - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desk mainly used in schools and the like, and is designed so that it can be stacked in many stages during transportation and non-use. The present invention relates to a desk having a structure in which a top plate of a desk is attached to a frame frame. 2. Description of the Related Art Conventionally, a frame desk of this kind is connected to a desk frame which is connected by bending or joining using a square or cylindrical pipe made of metal so as to have a leg, a column and a top plate mounting portion. A very simple structure consisting of a top plate mounted on this top plate mounting portion and a screw-connected top plate is required to be lightweight and robust. [0003] However, when assembled as a desk, the fixed top plate limits the stacking for storage and storage when transported in a limited space or when not in use. Or the number was limited. Therefore,
A desk having a structure capable of carrying a large number of desks at a time in a small space or stacking many desks for storage can be desired. At the same time, it is necessary that the structure is still simple, lightweight, and that it satisfies the strength required for a desk, and that the assembly is simple. SUMMARY OF THE INVENTION An object of the present invention is to make a frame and a top plate detachable so that the top plate constituting the desk can be arbitrarily stored during transportation or non-use. A plurality of frames can be removed from the frame and fitted with the shape of the frame in a state of only the frame composed of the pipes, and the pipes constituting the frame can be superimposed so as to be in close contact with each other in the internal space surrounded by the frame. Is to provide a desk. SUMMARY OF THE INVENTION Accordingly, the present invention provides a frame member integrally connecting a leg and a top plate mounting portion, a top plate, and fixing the top plate to the top plate mounting portion of the frame member. A fixing member made of a synthetic resin, wherein a portion which is in close contact with at least a part of the outer peripheral surface of the top plate mounting portion of the frame member and which is elastically gripped and a fixing portion of the top plate are integrated. A fixing member, an elastic engaging portion that engages with the first fixing member in a direction orthogonal to an axis of a top plate attaching portion of the frame member, and the top plate provided integrally with the elastic engaging portion. And a second fixing member including a fixing portion fixed to the mounting portion. According to the present invention, since the leg frame portion and the top plate are detachable, the flat top plate and the leg frame portion consisting of only the frame are separately used in a narrow space during transportation or storage. It can be densely stacked without leaving a small space. According to the desk of the present invention, the means for fixing the pipe frame and the top plate is made of a synthetic resin, and is formed so as to straddle the top plate mounting portion of the frame portion elastically and adhere to the outer peripheral surface of the pipe. With such a shape, a large stress concentration does not occur in the portion fixed to the frame and the top plate, so that the frame is not broken. In addition, since the contact surface is wide, a high detaching force can be obtained. According to the present invention, the fixing member having a portion for elastically gripping the frame portion is formed by an elastic piece extending along the outer peripheral surface of the frame portion. Can be adjusted arbitrarily long, it is possible to engage the frame with a simple operation and a small force, and conversely, the elastic biasing force can be increased. According to the present invention, the fixing member for fixing the top plate and the frame constituting the leg portion comprises a pair of fixing members independently fixed to the top plate and the frame portion, respectively, and these are formed of the frame member. Since a structure is provided that elastically engages in the direction perpendicular to the axis, the displacement of the fixing member is restricted, and the top plate and the frame can be stably fixed. Further, according to the present invention, despite the fact that the leg frame portion and the top plate are fixed via the fixing member, a pair of fixing members corresponding to the fixing direction of the frame portion and the top plate are inserted and fitted. The top plate can be attached and fixed as close as possible to the frame portion in order to engage while engaging. Hereinafter, the desk of the present invention will be described based on its embodiment.
This will be described in detail with reference to the drawings. FIG. 2 is a perspective view showing a desk according to one embodiment of the present invention. The desk 1 has a leg frame 2 assembled with a metal pipe or the like and a top plate placing portion 2a parallel to the floor of the leg frame, for example, at a suitable position.
Fixing member 3 obtained by molding a synthetic resin fixed at several places
And a tabletop 4 made of a wooden or synthetic resin desk fixed to the frame 2 via the fixing member 3. The top plate 4 and the frame 2 are detachably attached by the fixing member 3. I have. As shown in FIG. 1, a resin-made fixing member 3 is attached to a desk plate 4, for example, to a desk-side fixing member 3 a attached by bolting, and to a desk plate mounting portion 2 a of the frame 2. , And a frame-side fixing member 3b attached by bolting. Desk plate fixing member 3
A hole 14 for a desk plate mounting bolt (not shown) is provided in a fixing surface 13 with the desk plate 4 corresponding to the base of FIG. The elastic locking pieces 15, 1
6, 17, and 18 are integrally formed on the side surface of the desk plate fixing member 3a. The lengths of the extended portions of the elastic locking pieces 15 to 18 are adjusted so as to cover the outer peripheral surface corresponding to the central angle of at least 180 ° C. of the pipe in cooperation with the inner side surface of the fixing surface 13 of the fixing member 3a. . Further, elastic locking pieces 15, 16, and 17 adjacent on the side surface of the desk plate fixing member 3a,
And engagement recesses 19 and 20 formed between the two. The frame-side fixing member 3b is mounted so as to cover and surround the desk-side fixing member 3a and the frame 2 so that the inner side surface 21 of the base thereof is in close contact with the outer peripheral surface of the frame 2. . Therefore, on the inner surface 21,
The engaging piece 2 is provided so as to face in a direction orthogonal to the axis of the frame to which the frame-side solid member 3b in which the holes 22 for the frame mounting bolts (not shown) are provided is fixed.
3 and 24 are formed. The engaging pieces 23 and 24 of the frame-side fixing member 3b are fitted in the middle of the adjacent elastic locking pieces 15 and 16 or 17 and 18 on one side surface of the desk-board fixing member 3a. Engagement recess 1 having a distal end formed near the upper edge of both end surfaces of desk plate fixing member 3a
Both are fitted in the state where they are located in 9, 20, respectively. The desk-side fixing member 3a and the frame-side fixing member 3b are formed by injection molding so as to have a rectangular outer shape with, for example, a synthetic resin material, and opposing elastic locking pieces (15, 17). ), (16, 18) and (23, 24) are substantially the same or slightly larger than the outer diameter of the pipes constituting the frame 2 as shown in FIG. 3, and the fixing members 3a and 3b are located at the respective positions. When the fitting is performed in the state of being engaged, the inner surface presses the outer peripheral surface of the pipe,
Thereby, it becomes elastically held. Elastic locking piece 1
The elastic holding surfaces including the extension portions of 5, 16, 17 and 18 together with the bases of the fixing members 3a and 3b cover at least a half or more of the outer peripheral surface of the pipe of the frame 2 to elastically press and hold. When the table-side fixing member 3a and the frame-side fixing member 3b are completely fitted, they have a rectangular outer shape as shown in FIG. As described above, the locking pieces 23 and 24 are inserted into the engaging recesses 19 and 20 provided on the shoulder of the desk plate fixing member 3a.
The movement of the desk plate and the leg frame, which are fixed to each other by the depression, is prevented, and the assembly of the two is completed. At the same time, when the fixing member 3 is completely fitted, the step formed between the elastic locking pieces 15, 16 and 17, 18 integrally formed and arranged on the desk side fixing member 3a. Locking pieces 23 of the frame-side fixing member 3b
24 has both fixing members 3a,
3b is prevented from moving forward and backward, the second mechanical connection between the two is completed, and the press-contact holding of the pipe of the frame 2 is also completed. The disengagement of these couplings can be achieved by bending the distal end portions of the locking pieces 15, 16, 17, 18, 23, and 24 outward and lifting the desk-side fixing member 3a. As described in detail above, the desk of the present invention allows the frame portion and the top plate to be detachably attached to each other, so that the desk constituting the desk can be stored during transportation or non-use. Arbitrarily remove the board from the frame, match multiple frames to the shape of the frame in the state of only the frame composed of pipes, and overlap the pipes constituting the frame in the internal space surrounded by the frame so that they are in close contact with each other The effect that it can match is produced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of a resin fixing member for fixing a frame member and a desk member constituting a frame desk according to an embodiment of the present invention. FIG. 2 is an overall perspective view showing an example of a frame desk according to one embodiment of the present invention. FIG. 3 is a perspective view for explaining a fitting step of the fixing member by enlarging a fixing portion between the frame member and the base material in one embodiment of the present invention. FIG. 4 is a perspective view for explaining a state after fitting of the fixing member by enlarging a fixing portion between the frame member and the base material in one embodiment of the present invention. [Description of Signs] 1 Desk 2 Leg frames 3a, 3b Resin fixing member 4 Desk plates 15, 16, 17, 18, 23, 24 Elastic locking pieces 19, 20 Engaging recess

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuo Oge 4-2-7 Koraibashi, Chuo-ku, Osaka-shi, Osaka Bank Annex Dupont Co., Ltd. Osaka Branch Office (72) Inventor, Keisuke Uemura Shinyoshida, Kohoku-ku, Yokohama-shi, Kanagawa (4) Machi 4997 Dupont Co., Ltd. Central Research Laboratory (56) References JP-A-49-15559 (JP, A) JP-A-35-34048 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , (DB name) A47B 1/00-41/06

Claims (1)

(57) [Claim 1] A top plate, a frame member in which a leg portion and a top plate attachment portion are integrally formed, and the top plate and the frame member are independently provided. A pair of fixing members made of synthetic resin to be fixed, comprising at least a base and elastic locking pieces disposed at both ends of the base, and an outer peripheral surface of the frame member being formed by the base and the elastic locking pieces. And the elastic locking pieces are adjacent to each other in the axial direction of the frame member, and between the elastic locking pieces of one fixing member, the elastic locking pieces of the other fixing member are attached to the frame. A desk comprising: a fixing member having a coupling mechanism fitted in a direction perpendicular to the axial direction of the member.