JPS6313752Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention relates to an assembly type display shelf that uses supports formed by drilling a large number of engagement holes at predetermined intervals in a metal pipe. In particular, it relates to a connection structure of a horizontal frame connected to the support.

PRIOR ART In a knockdown display shelf that uses metal pipe supports having a number of engagement holes spaced at regular intervals on their outer periphery, the conventional structure is such that two hooks 31 protruding from both ends of a horizontal frame 30 are hooked onto long holes 33 formed on the outer periphery of a support 32, thereby connecting the horizontal frame 30 to the support 32, as shown in FIG.

<Problem to be solved by the invention> Therefore, if the hook portion 31 of the horizontal frame 30 is simply hooked to the long hole 33 of the support column 32, the connection will become loose, so another fixing bracket is placed outside the connection portion. The horizontal frame 30 and the support column 3 are fixed with screws or bolts.
2 must be tightened and fixed, and connecting and fixing means such as brackets, screws, or bolts appear on the outside, which poses a problem that hinders the design of the display shelf.

<Means for Solving the Problems> The present invention has been developed in view of the above points, and is a display in which the screws of the connecting and fixing means do not appear on the outside, and the columns and horizontal frames can be easily connected and fixed. This provides a horizontal frame connection structure for shelves. To this end, in the present invention, a connecting board with a downward hook is inserted inside the hollow horizontal frame, and a connecting board with an upward hook is placed inside the upper side of the horizontal frame and rotated with respect to the connecting board. A screw that can come into contact with the connecting board is vertically screwed into the connecting plate, and an operating hole is provided on the upper surface of the end of the horizontal frame above the screw, and the horizontal frame is connected to the support column. is provided with a long hole into which both of the hooks are inserted, and with both hooks protruding from the end of the horizontal frame inserted into the long hole of the support, the screw is inserted through the operation hole provided on the upper surface of the end of the horizontal frame. is configured to rotate the connecting plate upward and lock the upward hook into the long hole of the column. As a result, the connection fixing screws do not appear on the outside, and the horizontal frame and the support can be easily connected by inserting a screwdriver through the operation hole provided on the upper surface of the horizontal frame.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 shows a cross-sectional view of a connecting portion between a support 20 and a horizontal frame 1, and the support 20 is formed by providing a large number of long holes 21 at predetermined intervals in a metal round or square pipe. The horizontal frame 1 is a member that is connected and fixed to a support 20 that is erected as a frame on the front, back, or side of the display shelf or as a shelf board holder, and is formed hollow inside. Reference numeral 2 denotes a connecting board inserted into the lower side inside the horizontal frame 1, which has a downward hook portion 3 at the left end, and is arranged at a position where the downward hook portion 3 protrudes outward from the end of the horizontal frame 1. . Reference numeral 4 denotes a connecting plate disposed on the inside upper side of the horizontal frame 1, whose right end is rotatably supported by a pin 5 to the connecting board 2, and has an upward hook portion 6 at its left end. The hook portion 6 is arranged so as to protrude from the end of the horizontal frame 1. A threaded hole is vertically formed in the intermediate portion of the connecting plate 4, and a screw 7 is screwed into this threaded hole. The tip of this screw 7 is connected to the connecting board 2.
When the screw 7 is further screwed in, the reaction force thereof acts to rotate the connecting plate 4 upward and pull the upward hook portion 6 upward. Reference numeral 9 denotes an operation hole provided on the upper surface of the horizontal frame 1 for turning the screw 7. The connecting board 2 is made of one steel plate, and the connecting plate 4 is made of two superimposed steel plates, and semi-punched protrusions 8 are provided on both sides of the connecting board 2 to form a third plate. As shown in the figure, it can be inserted approximately into the center of the horizontal frame 1.

When assembling a display shelf, the horizontal frame 1 configured in this way is connected between the supports 20 as a frame for the back wall or side wall of the shelf, or as a receiving frame for the shelf board, as follows.

First, by returning the screws 7 that are screwed into the screw holes of the connecting plate 4, the connecting plate 4 is rotated downward by its own weight, and the upward hook portion 6 is in the lowered position, that is, in the elongated hole 21 of the support column 20. Upward hook portion 6 and downward hook portion 3
, press the end of the horizontal frame 1 against the support 20, insert the upward hook part 6 and the downward hook part 3 into the upper and lower elongated holes 21, lower the horizontal frame 1 a little, and insert the downward hook part 3. It is completely locked to the edge of the elongated hole 21. next,
Insert the tool into the operation hole 9 from above the horizontal frame 1, and tighten the screw 7.
By screwing into the connecting plate 4, the connecting plate 4 is rotated upward, and the upward hook part 6 is pulled up. As a result, the upward hook portion 6 is locked to the edge of the elongated hole 21 in the same manner as the downward hook portion 3, and furthermore, by screwing in the screw 7, both the hook portions 3 and 6 are attached in the direction of opening up and down. Since the horizontal frame 1 is forced to engage with the elongated hole 21, the horizontal frame 1 is reliably connected to the support column 20 without wobbling. Furthermore, even if the assembly work is carried out in a narrow space and the back of the support or horizontal frame 1 is closed off by a wall, etc., the work can be easily carried out by inserting tools through the operation hole 9 drilled in the top surface. The operation hole 9 is not visually noticeable at all.

<Effects of the invention> As explained above, according to the horizontal frame connection structure of the present invention, there are brackets,
Since there are no connecting and fixing means such as screws or bolts, it is possible to construct a display shelf with an excellent design without interfering with the good design of the display shelf. In addition, an operation hole is provided on the top of the horizontal frame, and a tool is inserted from above to turn the internal screw, making it easy to assemble even in narrow spaces with walls on the back or sides.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention; Figure 1 is a cross-sectional view of the column and horizontal frame connected to each other; Figure 2 is a cross-sectional view of Figure 1; and Figure 3 is a cross-sectional view of the same. ,
FIG. 4 is a front view of the state before connection, and FIG. 5 is a front view showing the state of connection of the conventional support and horizontal frame. DESCRIPTION OF SYMBOLS 1... Horizontal frame, 2... Connecting board, 3... Downward hook, 4... Connecting plate, 6... Upward hook, 7... Screw, 9... Operating hole, 20... Support, 21... ...Long hole.

Claims (1)

[Scope of utility model registration request] A connecting board having a downward hook is inserted into the lower inside of the horizontal frame formed in the hollow, and a connecting plate having an upward hook is rotatably supported in the upper inside of the horizontal frame with respect to the connecting board. A screw capable of contacting the connecting board is vertically screwed into the connecting plate, an operating hole is provided on the upper surface of the end of the horizontal frame above the screw, and a support to which the horizontal frame is connected is provided. is provided with a long hole into which both the hook portions are inserted, and the screw is operated from the operation hole with both the hook portions protruding from the end of the horizontal frame being inserted into the long hole of the support. A horizontal frame connection structure for a display shelf, characterized in that the upward hook portion is engaged with the elongated hole of the support by rotating the connection plate upward.