JPH0120922Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a pipe shelf installed in a taut state between two members having an arbitrary interval.

[Prior art and its problems] Conventionally, there is a pipe shelf in which a plurality of pipes are connected in parallel using a frame, and these pipes can be installed in a stretched state between two members having an arbitrary interval. has been proposed (Utility Model Application Publication No. 54-155713).

That is, this pipe shelf constitutes a main frame by holding both ends of a plurality of outer pipes in parallel with a frame body, and the outer ends of inner pipes that are inserted into and out of each outer pipe freely. An auxiliary frame is formed by holding the auxiliary frames in parallel with each other, a box body is attached to any inner pipe of this auxiliary frame, and a plate provided inside the box body connects the inner pipe to the outer pipe. A tension force is generated by positioning the box body and the frame body of the main frame, and by providing a compression spring between the box body and the frame body of the main frame.

However, in the above-mentioned pipe shelf, the tension force is generated between the main frame and the auxiliary frame, so when installing between two opposing members, the main frame and the auxiliary frame must be compressed. However, it is difficult for women and women who are weak to install the device, and there is a limit to the tension that can be applied, so heavy objects cannot be placed on it.

Such a problem can be solved, for example, by separately providing a mechanism for adjusting the entire length of the pipe and a mechanism for generating tension using a screw. For example, the auxiliary shelf made of an inner pipe and the main shelf made of an outer pipe can be fixed with fixing screws, and a screw mechanism is provided at the outer end of the outer pipe to generate the tension. . In this case, if the screw mechanism is provided only at one location in the center as in the above-mentioned publication, there is a drawback that the shelf will rotate, so normally two screw mechanisms are provided on both sides.

This type of screw mechanism can generate an extremely large thrusting tension, and has the advantage of being able to place heavy items on it. However, if there is an imbalance in the thrusting tension of the screw mechanisms on both sides, the shelf may be twisted, causing the shelf to become unbalanced. There is a problem that not only the figurines fall, but also that once they are twisted, they develop a twisting habit. In order to eliminate the twisting of the shelf, there are methods of gluing the pipe and frame together or fixing them with screws, etc., but in the former case, it is not a fundamental solution, and in the latter case, the number of parts increases. As a result, there are disadvantages such as increased cost and damage to the aesthetic appearance.

[Purpose of invention]

This idea was created in view of the above problems.
The purpose is to provide a pipe shelf with a simple structure that can generate enough tension to place heavy objects and provide large torsional rigidity.

[Structure of the idea]

In order to achieve the above object, the present invention has a first frame body and a second frame body that fit and hold both ends of a plurality of outer pipes in parallel, and an inner frame body that is inserted into and out of each outer pipe freely. A third frame that fits and holds the outer ends of the pipes in parallel, a fixing screw that is screwed into both sides of the second frame and crimply fixes the inner pipe, and one end that is attached to the outermost outer pipe. 2 slidably inserted
A screw shaft of a book, an adjustment member that is screwed onto the screw shaft and can be rotated manually, and a fourth frame that is fixed to the other end of the screw shaft and connects and fixes the two screw shafts. A notch is formed in at least the outer end of the outermost inner pipe and both ends of the outermost outer pipe, and these ends fit into the third frame and the first and second frames. A protrusion that engages with the notch is formed on the inner surface of the hole.

[Effect]

In other words, in a tension-type pipe, when the pipe is twisted, the moment in the rotational direction is greatest at the fitting part between the outermost pipe and the frame, so the notches that engage with each other in this fitting part are By providing the protrusions and the protrusions, it is possible to prevent sliding in the rotational direction and provide torsional rigidity.

[Example] Fig. 1 and Fig. 2 show an example of the present invention, in which 1 is a plurality of inner pipes arranged in parallel, 2 is a plurality of outer pipes through which the inner pipe 1 is inserted so as to be freely removable, and 3 4 and 5 are the first and second frames that fit into both ends of the outer pipe 2, respectively. The inner and outer pipes 1 and 2 are fitted and held in parallel.

As shown in FIG. 3, a detent notch 1a is formed at the outer end of the inner pipe located at the outermost side of the inner pipe 1.
A projection 3b that engages with the notch 1a is formed on the inner surface of the fitting hole 3a of the third frame 3 into which the outer end of the third frame 3 is fitted. When the inner pipe 1 and the third frame 3 are fitted together, the notch 1a and the protrusion 3b are engaged with each other, so that the inner pipe 1 is prevented from rotating relative to the third frame 3. A cushion material 8 made of rubber or the like is attached to the outer surface of the third frame 3 so as not to damage the wall surface when it is pressed against the wall surface.

Further, as shown in FIG. 4, a rotation prevention notch 2a is also formed at the outer end of the outer pipe 2 located at the outermost side, and a first frame into which the outer end of the outer pipe 2 is fitted is formed. The inner surface of the fitting hole 4a of the body 4 has the above-mentioned notch 2.
A protrusion 4b that engages with a is formed. An insertion hole 4c is formed on the outer surface of the first frame 4, and the head of the screw shaft 6 inserted from the inside of the insertion hole 4c is positioned inside the outer pipe 2 to prevent it from coming off outward. The tip of the screw shaft 6 is fixed to the fourth frame 7.

An adjustment member 9 is provided between the first frame 4 and the fourth frame 7, and a metal nut 10 screwed onto the screw shaft 6 is fixed inside the adjustment member 9. There is. By manually rotating the arm portions 9a that protrude on both sides of the adjustment member 9, the protruding length l of the screw shaft 6 is changed, and the distance between the fourth frame 7 and the first frame 4 is adjusted. be able to.

As shown in FIGS. 5 and 6, the inner end of the outer pipe 2 located at the outermost side is formed with a rotation prevention notch 2b, and the inner end of the outer pipe 2 is fitted into the inner end of the outer pipe 2. The inner surface of the fitting hole 5a of the two-frame body 5 is formed with a protrusion 5b that engages with the notch 2b. Second
A semicircular guide portion 5c and a recess 5d are integrally formed on the side surface of the frame 5 on the third frame 3 side.
The tightening member 11 inserted from the side in d and the guide portion 5c form an arcuate surface that slidably guides the inner pipe 1. A nut 12 is embedded in the end face of the tightening member 11, and this nut 1
A fixing screw 13 inserted from the side surface of the second frame body 5 is screwed into the second frame body 2 . Then, the fixing screw 13
By tightening, the semicircular arc surface of the tightening member 11 is pressed against the outer peripheral surface of the inner pipe 1, and the inner pipe 1 can be fixed with an arbitrary protrusion length.

Here, a method for installing the pipe shelf having the above configuration on the opposing wall surface will be explained.

First, loosen the fixing screws 13 provided on the second frame 5 to make the inner pipe 1 slidable, and set the total length L of the pipe shelf.
(See FIG. 1) are adjusted to approximately the distance between the walls to be installed, and then the inner pipe 1 is fixed by tightening the fixing screws 13. Next, with the third frame 3 provided at the outer end of the inner pipe 1 in contact with one wall surface, the adjustment member 9 is rotated to increase the protruding length l of the screw shaft 6. Therefore, the fourth frame 7
Crimp it to the other wall to complete the installation.

In this way, the pipe shelf can be attached to the opposing wall surface without using any nails or wood screws, so the installation work is easy and the wall surface is not damaged. In particular, since the pushing tension is generated simply by turning the adjustment member 9, even women with weak strength can generate a strong pushing tension, and even heavy objects can be placed thereon. A notch 1 for preventing rotation is provided at the fitting portion between the outermost inner pipe 1 and outer pipe 2 and the first, second, and third frames 3, 4, and 5.
Since the pipes a, 2a, 2b and the protrusions 3b, 4b, 5b are provided, the outermost pipe, which has the largest moment in the rotational direction when twisted, can be prevented from being twisted, and the torsional rigidity can be increased.

In addition, since the fourth frame 7, which is crimped to the wall surface, connects and fixes the two screw shafts 6, the fourth frame 7 does not rotate together when the adjustment member 9 is turned, making the operation easy. As the protruding length of the screw shaft 6 is increased, both ends of the fourth frame 7 are pressed against the wall surface, so that stability in the attached state is good.

[Effect of idea]

As is clear from the above description, the pipe shelf of the present invention allows the outer pipe connected and held by the first and second frames to slide against the inner pipe connected and held by the third frame, In addition, the overall length can be adjusted by fixing it with a fixing screw, and the tension is generated by two screw mechanisms installed on the outside of the outer pipe, so you can easily adjust the length by simply turning the adjustment member. Can generate tension and has good installation stability.

In addition, we have provided detent notches and protrusions in the areas where the greatest moment is applied when torsional force is applied, which greatly improves the torsional rigidity of the pipe shelf. Even if there is some imbalance in the tension of the mechanism, it is effective in preventing the placed object from falling.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an example of a pipe shelf according to the present invention, Fig. 2 is a front view thereof, Fig. 3 is an exploded perspective view of section A in Fig. 1, and Fig. 4 is an enlarged cross section of section B in Fig. 1. figure,
5 and 6 are an exploded perspective view and an enlarged sectional view of section C in FIG. 1. 1...Inner pipe, 2...Outer pipe, 1a, 2
a, 2b...notch, 3...third frame, 4...first
Frame body, 5...Second frame body, 3a, 4a, 5a...Fitting hole, 3b, 4b, 5b...Protrusion, 6...Screw shaft, 7...Fourth frame body, 9...Adjustment member , 13...
Fixing screw.

Claims (1)

[Claims for Utility Model Registration] A first frame that fits and holds both ends of a plurality of outer pipes 2 in parallel in a pipe shelf installed in a stretched state between two members having an arbitrary interval. The body 4 and the second frame 5, the third frame 3 which fits and holds the outer end of the inner pipe 1 which is inserted in and out of each outer pipe in a parallel state, and the second frame 5.
Fixing screws 13 are screwed into both sides of the frame body 5 and fix the inner pipe by crimping, two screw shafts 6 whose one end is slidably inserted into the outermost outer pipe, and The adjustment member 9 is screwed together and can be rotated manually, and the fourth frame 7 is fixed to the other end of the screw shaft 6 and connects and fixes the two screw shafts 6. The outer end of the inner pipe 1 and both ends of the outermost outer pipe 2 are provided with notches 1a, 2a,
2b is formed, and the fitting holes 3a, 4 of the third frame 3 and the first and second frames 4, 5 are formed, and these ends are fitted.
The inner surfaces of a, 5a have the above-mentioned notches 1a, 2a, 2b.
A pipe shelf characterized in that projections 3b, 4b, and 5b are formed to engage with the pipe shelf.