JPS5813130Y2 - Horizontal material fixing device for assembled fixtures - Google Patents

Description

[Detailed description of the invention] The present invention forms a recess 2 for storing screws in the end face of the horizontal member 1, and attaches a headed screw 3 that can freely protrude from the end face of the horizontal member 1 to the bottom of the recess 2. A headless screw 6 is screwed in such a manner that it can move forward and backward, and a headed screw 3 is attached to the side surface of a member such as a support that becomes the mounting surface 10 of the horizontal member 1.
A large diameter part I, which is freely inserted through which the head 4 of the head 4 can be inserted, and a small diameter part I, which is located below this large diameter part, through which the shaft part 5 of the headed screw 3 can be freely inserted, and through which the head 4 of the headed screw 3 cannot be inserted. A dowel hole 8 consisting of a dowel hole 8 and a small hole 9 into which the headless screw 6 can be inserted are provided, and the shaft portion 5 is fastened with a headed screw 3 located within the small diameter portion 8 of the dowel hole. The present invention relates to a horizontal member fixing device for an assembled fixture, in which a horizontal member 1 is fixed to a mounting surface 10 and headless screws 6 are positioned in small holes 9.

Assembling fixtures, for example, display shelf supports 12 as shown in FIG.
When the horizontal member 1 is installed between the horizontal legs 13 and the horizontal legs 13, the end faces of the horizontal member 1 are brought into contact and fixed as shown in FIGS. 1 and 2.

The one shown in FIG. 1 shows the case where it is fixed to the upper end of the column 12, but a pair of notches 21 and 21 are cut in the upper end of the rectangular pipe-shaped column 12, and the end surface of the horizontal member 1 is cut. A U-shaped protrusion 23 is installed in the -1t1-shaped protrusion 23 is cut 21.2.
After connecting the support 12 and the horizontal member 1, a cap 24 is attached to the upper end surface of the support 1.

In the figure, 22 is a bracket mounting hole.

Since this cap 24 is simply attached by the frictional force of the locking protrusion 25, it easily comes off when the horizontal member 1 moves upward, and cannot securely fix the horizontal member 1.

In addition, the one shown in FIG. 2 has a headed screw 29 on the end surface of the horizontal member 1.
At the same time, a rotation prevention pawl 28, 28 is provided protrudingly, a bellows hole 26 and a long hole 27 in the vertical direction are cut on the side of the pillar 12, and a headed screw 29 is inserted into the bellows 1 hole 26 to tighten its small diameter. The column 12 and the horizontal member 1 are fixed by tightening with a screwdriver from the opposite side.

At this time, the anti-rotation claw 28 enters the elongated hole 27 and the horizontal member 10
To prevent rotation, the headed screw 29 passes through the large diameter part of the barrel 1 hole 26 and then falls into the small diameter part, so the rotation prevention pawl 28 can move up and down within the elongated hole 27 by this amount of stroke. Therefore, when the headed screw 29 is loosened, the horizontal member 1 can easily be moved upward, causing the horizontal member 1 to come off.

The present invention has been devised in view of the above points, and its purpose is to provide a horizontal member fixing device for assembled fixtures that will prevent the horizontal members from coming off even if the button head screws become loose. There is something to do.

The present invention will be described in detail below based on illustrated embodiments.

As mentioned above, a display shelf is shown in FIG. 3 as an assembled fixture.

A large number of bracket mounting holes 22 are bored in the front and back surfaces of the support column 12 that stands up from approximately the center of the horizontal leg 13.

A recess 2 is formed in the end face of a rectangular pipe-shaped horizontal member 1 installed between a pair of support columns 12 and a horizontal leg 13.

A headless screw 6 and a headed screw 3 are screwed into the bottom plate 14 of this recess 2, and the headless screw 6 is located above the headed screw 3.

A column 12 and a horizontal leg 1 which are the mounting surface 10 of this horizontal member 1
A mounting hole 11 is formed on the side surface of 3, which is composed of a pothole hole in which the large diameter portion 7 is located above the small diameter portion 8, and a small hole 9 located above the pothole 1 hole and communicating with the dowel 1 hole. is perforated.

The large diameter part 7 is a part through which the head 4 of the headed screw 3 can be inserted, and the small diameter part 8 is a part through which the shaft part 5 of the headed screw 3 can be inserted, but the head 4 cannot be inserted. Reference numeral 9 is a screw that substantially matches the outer diameter of the headless screw 6 and can be inserted freely.

When installing, first attach the head 4 of the headed screw 3 to the horizontal member 1.
The headless screw 6 is housed in the recess 2 so as not to protrude from the end face.

Then, the head 4 of the headed screw 3 is inserted into the large diameter part I and pulled out, and the shaft part 4 is positioned in the small diameter part 8, and the mounting hole 11 bored on the outer side of the column 12 and the horizontal leg 3 is inserted. Same-shaped hole 11
Tighten the headed screw 3 through a screwdriver, and then tighten the horizontal member 1.
and the mounting surface 10 are fastened together.

Thereafter, the headless screw 6 is screwed back to be positioned within the small hole 9 and brought into contact with the upper edge of the small hole 9.

This headless screw 6 not only prevents the horizontal member 10 from rotating, but also prevents the horizontal member 1 from moving upward and the headed screw 3 from reaching the large diameter portion 7 even if the headed screw 3 becomes loose. Therefore, the horizontal member 1 will not come off.

As mentioned above, this invention prevents the rotation of the horizontal members by placing the headless screws in the small holes, and also prevents the horizontal members from moving upward, and allows the headed screws to enter the large diameter holes. This prevents them from falling off, and since these headless screws can be stored in recesses on the end faces of the horizontal members, they do not get in the way during installation, and can be easily and securely fixed with a single screwdriver. be.

In addition, this type of attachment has the advantage that the screws are less likely to loosen because no rotational force is applied to the headed or unheaded screws.

[Brief explanation of the drawing]

Figures 1 and 2 are exploded perspective views of the conventional example, Figure 3 is an overall exploded perspective view of the present invention-embodiment, Figure 4 is an exploded perspective view of essential parts of the same, and Figure 5 is a side view of the same. , FIG. 6 is a sectional view of the same. 1 is a horizontal member, 2 is a recess, 3 is a headed screw, 4 is a head, 5 is a shaft, 6 is a headless screw, 7 is a large diameter portion, 8 is a small diameter portion, 9 is a small hole, 10 indicates the mounting surface.

Claims (1)

[Scope of utility model registration request] A recess for storing screws is formed in the end face of the horizontal member, and a headed screw and a headless screw that can freely protrude from the end face of the horizontal member are screwed into the bottom of the recess so as to move forward and backward. A large diameter part through which the head of a headed screw can be freely inserted into the side surface of a member such as a support that serves as the mounting surface for the end face of the Fastening of a headed screw with a shaft portion located within the small diameter portion of the dowel hole, with a dowel hole consisting of a small diameter portion into which the screw head cannot be inserted, and a small hole through which a headless screw can be freely inserted. A horizontal member fixing device for assembled fixtures, which is comprised of fixing the horizontal member to the mounting surface and positioning it within the headless screw and small hole.