JP3400769B2 - Handrail fixing mechanism - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail fixing mechanism that is attached to a window frame opening of a building and has a function of absorbing dimensional variation of the window frame opening.

[0002]

2. Description of the Related Art As a handrail fixing device capable of absorbing the dimensional fluctuation of a window frame opening, Japanese Patent Application No. 143944/1996 (Japanese Patent Laid-Open No. 8-312093) discloses "fixing attached to window frame and bent in L shape. Tool 51, a handrail main body 53 made of a square pipe having an opening 52 into which the fixing tool 51 is inserted at least on one inner side surface at one end and slightly shorter than a distance between corresponding inner surfaces of the window frame, and the handrail main body 53. A cover 54 slidably fitted to the
1 has a female screw hole 56 in the bent portion, and a long hole 57 in the longitudinal direction at a position corresponding to the female screw hole 56 of the handrail main body 53.
However, at the positions corresponding to the elongated holes 57 of the cover 54, there are formed through holes 58 for the screws, which are screwed into alignment with the female screw holes 56 when the cover 54 contacts the window frame. The handrail fixing device has been proposed.

[0003]

According to the above proposal, as shown in FIG. 5, it is necessary to open (cut out) one end of the handrail made of a square pipe, which is punched out by a press. It is not suitable for on-site work.
If you work in the field, you will have to use a gold saw and an electric drill together, which is not efficient and you cannot expect a beautiful finish. Further, the above-mentioned conventional technique cannot be applied to a handrail made of a round pipe. Therefore, in the above-mentioned conventional technique, it is difficult to properly cut the handrail material having the standard length (referred to as a standard length) at the construction site according to the size of the window frame to install the handrail, and to fit the window frame at the site. It was necessary to perform cutting processing in the factory in advance.

In view of the above problems, the present invention provides a handrail fixing mechanism capable of efficiently cutting a fixed-size handrail material on site so that the material can be efficiently collected, and that the working time can be shortened and finished neatly. The challenge is to provide.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is directed to a member attached to the inner surface of a window frame,
It consists of a handrail main body whose both ends are cut obliquely, and a sleeve which covers the part of the handrail main body cut obliquely.The above member is attached to the inner surface of the window frame, and this member and the part of the above handrail main body which is cut obliquely are formed. The slidably covering the trocar over the length of the handrail to match the inner dimensions of the window frame, and screwing a screw nail having a point toward the inner surface of the handrail main body from the trocar through the inclined cut portion. It is configured as follows.

With the above-mentioned structure, it is possible to appropriately cut the standard length material at the construction site and efficiently collect the material, shorten the working time and achieve a beautiful finish, and also the square pipe and the round pipe. You will be able to handle any of the pipe handrails.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a handrail fixing mechanism for a square pipe, which has an L-shaped mounting bracket 10, a plate screw 12 for mounting the mounting bracket 10 on a window frame 11 (FIG. 4), and an end portion of 45 degrees. The handrail main body 13 which is inclined and cut at an angle, the tubular sleeve 14 which is slidable on the handrail main body 13 and slidable, and the handrail main body which is screwed into the female screw 17 of the mounting member 10 through the through hole of the sleeve 14. It is composed of a countersunk screw 16 having a tip 15 that cuts into the inner surface of 13. In addition,
The other end of the handrail main body 13 has a similar mechanism.

Next, the mounting work of the handrail by the mounting mechanism will be described (see FIG. 2).

The mounting bracket 10 is attached to the inner surface of the window frame 11 with a countersunk screw 12, and a rectangular tube-shaped sleeve 14 is previously fitted to the end of the handrail main body 13 which is cut obliquely, and the inclined surface of the handrail main body 13 is cut obliquely. Mounting bracket 10 with the front facing
, The sleeve 14 is moved to the end of the handrail main body 13 and screwed into the female screw 17 of the fitting 10 through the through hole of the sleeve 14, the plate screw 16 is propelled and the sleeve 14 is tightened. At the same time, the tip 15 bites into the inner surface of the handrail main body 13 to fix the handrail main body 13. In addition, the part shown by the dashed-dotted line in the figure shows the state in which the handrail main body is provided so as to protrude from the window frame 11.

Next, the case where the handrail is cylindrical is shown in FIG.
A description will be given with reference to (a) and (c).

Here, the fitting 30 has a disk-shaped portion 30a in contact with the inner surface of the window frame, and a portion 30b for fixing the handrail extends from the outer peripheral edge of the disc-shaped portion 30a in the axial direction of the handrail and is provided with a female screw. Consisting of the above disk shape 3
An arcuate elongated hole 39 is formed in 0a along a concentric circle with its center as an axis.

Attach this mounting bracket to the inner surface of the window frame with a screw 22.
, The handrail 23 is attached to the handrail, the trocar 24 previously fitted to the handrail is moved to the inclined cut portion and brought into contact with the inner surface of the window frame, and the hole 27 ′ of the trocar and the female screw 37 of the mounting bracket are attached.
After screwing, screws 26 are screwed in, and the tip of the screw is cylindrical handrail 23.
Secure the handrail by digging into the inside of the. In this case, 27 'is a through hole (stupid hole), and it is not necessary to provide the female screw 27.

Next, another embodiment in which the handrail has a cylindrical shape will be described with reference to FIGS. 3 (a) and 3 (b).

A male screw 28 is provided on the outer circumference, and an arc-shaped elongated hole 29 is formed.
A disk-shaped mounting metal fitting 20 provided with, a plate screw 22 for mounting the mounting metal fitting 20 on the inner side surface 11 of the window frame, and a cylindrical handrail main body 2 in which the end portion is inclined and cut at an angle of 45 degrees.
3, the sleeve 24 which is slidably rotatable on the handrail main body 23, and the handrail main body 23 which is screwed into the female screw of the sleeve 24.
A washer (not shown) having a flat plate screw 26 having a sharp tip 25 that bites into the inner surface of the plate, and if possible, a through hole having the same interval as that of the arcuate elongated hole 29 is provided between the plate screw 22 and the fitting 20. Intervening. A similar mechanism is provided at the other end of the handrail main body 23.

Next, the mounting work of the handrail by the mounting mechanism will be described (see FIG. 2).

The metal fitting 2 is attached to the inner surface of the window frame 11 (FIG. 4).
0 is attached with a countersunk screw 22, and a sleeve 24 is fitted in advance to the end of the handrail main body 23 that has been obliquely cut, and the inclined surface of the handrail main body 23 that has been obliquely cut is facing you.
, And the sleeve 24 is moved to screw the female screw 27 of the sleeve 24 into the female screw 28 of the fitting 20, and the screw of the sleeve 24 is screwed into the female screw 27.
When the screw is propelled, the tip 25 bites into the inner surface of the handrail main body 23 and the handrail main body 23 is fixed. It should be noted that the position where the male screw 28 of the mounting member 20 faces is slightly shaved in order to avoid the screwing rib formed on the inner surface of the handrail main body 23, and it is not necessary to grind if there is no screwing rib. In addition, the screw hole of the mounting bracket 20 is replaced with the arc-shaped long hole 29.
The reason for this is that when the sleeve 24 is screwed into the mounting member 20, the screw hole 27 ′ of the sleeve 24 coincides with the inclined cutting of the handrail main body 23. That is, the plate screws 22 are loosened, the fittings 20 are rotated to make them coincide, and the plate screws 22 are tightened again. According to the above-mentioned mounting method, instead of the arc-shaped long hole, a through hole is provided at the center of the mounting member 20, and if a screw with a slightly thick screw is used with a chrysanthemum washer interposed, the arc-shaped hole is formed. There is no need to make a long hole.

The reason why the end of the handrail main body 23 is cut obliquely at an angle of 45 degrees is that it is possible to reduce the loss of material picking.

FIG. 4 is a front view of a state in which a handrail is attached according to the present invention, which absorbs a dimensional variation of the window frame 11 and is attached very simply and neatly.

[0019]

As described above, according to the present invention, the handrail material of a fixed length is cut obliquely at the construction site and the prepared parts are used, so that the handrail can be extremely easily absorbed while absorbing the dimensional fluctuation of the window frame. It has become possible to install.

Further, since the fixed length material can be appropriately cut to perform the work, the material can be efficiently collected and the material loss can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is a perspective view of another embodiment, in which (a) is a tubular handrail fitted with a sleeve, (b) is a fitting (1) and (b) is a fitting (2).

FIG. 4 is a front view of a window frame to which the handrail is attached.

FIG. 5 is a perspective view of a conventional handrail fixing device.

[Explanation of symbols]

10, 20, 30 mounting bracket 11,21 window frame 12,22 plate screw 13,23 Handrail body 14 Square tube 15,25 point 16,26 plate screw 17, 27, 37 female screw 24 trocar 28 Male screw 29, 39 arc-shaped long holes

Claims (5)

(57) [Claims] 1. A handrail mounting member comprising a portion in contact with an inner side surface of a window frame and a portion integrally extending from the window frame in the axial direction of the handrail, a handrail main body having both ends inclined and cut, and the handrail main body. A trocar covering a portion from the inclined cut portion to the mounting member, the mounting member being attached to an inner surface of the window frame, and the trocar extending over the mounting member and the inclined cut portion of the handrail main body. The through hole of the sleeve, the female screw of the mounting member,
A handrail fixing mechanism in which a screw nail having a tip is screwed toward the inner surface of the handrail main body through the inclined cut portion and the tip is bited into the inner surface of the inclined cut portion. 2. The handrail main body is a rectangular tube shape, and the mounting member is a handrail in which a strip-shaped plate is bent into an L-shaped cross section and a through hole is formed in one side to form a mounting piece, and the other side is provided with a female screw. The handrail fixing mechanism according to claim 1, which serves as a fixing piece. 3. The handrail main body has a cylindrical shape, and the mounting member has a disk-shaped through hole in a portion in contact with the inner surface of the window frame, and a portion for fixing the handrail main body from the outer peripheral edge of the disc. The handrail fixing mechanism according to claim 1, wherein the handrail fixing mechanism extends in the axial direction of and is provided with a female screw. 4. The handrail fixing mechanism according to claim 1, wherein the through hole provided in the disc-shaped mounting member is an elongated hole provided along a concentric circle having the center of the disc as an axis. 5. A mounting member having a disk shape, in which two or more elongated holes are provided on a concentric circle with its center as an axis, and male threads are provided on the outer periphery thereof, and a cylindrical handrail body with both ends inclined and cut. And a sleeve having a female screw threaded to the male thread on one end, and a female thread screwed to the screw for fixing the handrail body to the outer peripheral surface, and a threaded nail having a pointed tip on the female thread of the sleeve. A handrail fixing mechanism in which the tips are screwed into the inner surface of the handrail body.