JPH0354520Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a handrail provided in a recessed portion of a parapet frame.

(Prior art) Generally, when a recess is formed in the parapet frame and a handrail is provided in the recess, the fifth
As shown in the figure, a horizontal bar 3 was formed at the lower part of the handrail A, and the end of the horizontal bar 3 was fastened and fixed to the inner wall surface 1b of the recess 1 via an angle member 13. However, in such a fixing method, the angle material 1
3 is exposed to the outside, which poses an aesthetic problem. In addition, since the inner wall surface 1b of the recess, the angle member 13, and the horizontal beam 3 are integrally connected, the recess may be deformed by an earthquake or caused by temperature changes. When the horizontal crosspiece expands and contracts, it cannot accommodate these deformations, resulting in drawbacks such as cracks forming in the recesses and loosening of the set screws of the angle members.

(Objective of the invention) The object of the present invention is to eliminate the above-mentioned drawbacks, to provide a handrail that can particularly cope well with the deformation of parapet recesses and angle members, and is easy to install.

(Means for achieving the object) In order to achieve the above object, the present invention consists of upper and lower horizontal bars and a plurality of vertical bars connecting these horizontal bars, and is arranged in a recess provided in the parapet frame. The provided handrail is characterized in that at least the lower horizontal beam is fixed to the inner wall surface of the recessed portion as follows.

(a) The lower horizontal beam shall be formed in a U-shaped cross section with an open bottom, and protrusions shall be formed facing each other at the lower part of the opposing wall.

(b) A support block having an opening groove that opens downward is fitted and held on the protrusion at the end of the lower horizontal beam.

(c) A fixing means such as a screw or bolt is disposed in the opening groove of the support block, and the fixing means fixes the support block to the inner wall surface of the recess.

(Operations and effects of the invention) As described above, according to the invention, the handrail is formed from the upper and lower horizontal bars and the plurality of vertical bars connecting these horizontal bars so that it can be placed in the recess of the parapet frame in advance. Assemble, fit the support block to the end of the lower horizontal beam. The support block is held within the lower horizontal bar by being supported by protrusions formed opposite to each other at the lower part of the opposing wall of the lower horizontal bar. Next, the handrail is placed inside the recess of the parapet frame, and fixing means such as screws and bolts are inserted into the downward opening groove of the support block through the opening of the lower horizontal beam, and the head of the fixing means is directly inserted. Alternatively, it is engaged with the inner end of the support block through a washer or the like, and the support block is fixed to the inner wall surface of the recess. As a result, the lower horizontal beam holding the support block is also supported by the support block.

In addition, the fixing means such as screws and bolts are installed in advance at predetermined positions on the inner wall surface of the recess of the parapet frame, and when placing the handrail in the recess, the lower horizontal beam is placed on top of the fixing means. However, at the same time, the fixing means may be inserted into the opening groove of the support block and then fixed to the inner wall surface of the recess. Further, a jig or the like for fixing the fixing means to the inner wall surface of the recess can be inserted through the opening of the lower horizontal beam.

As mentioned above, since the lower horizontal beam and the support block are open at the bottom, it is very easy to fix them to the support block using fixing means such as screws and bolts, making it easy to install the handrail. can. Further, since the support blocks fixed by fixing means such as screws and bolts cannot move vertically within the lower horizontal beam, the horizontal beam can be reliably supported. In addition, the support block can move in the longitudinal direction within the lower horizontal rail, so when the recess is deformed due to an earthquake or the lower horizontal rail expands or contracts due to temperature changes, it can accommodate these deformations. be able to.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In the figure, symbol A indicates a handrail. This handrail A is installed in a recess 1 provided in a parapet frame B, and is assembled from an upper horizontal beam 2, a lower horizontal beam 3, and a vertical beam 4 connecting the upper and lower horizontal beams 3.

In addition, the bottom of the recess 1 and the inner wall surfaces 1 on both sides
Caps may be provided as appropriate for a, 1b, and 1b.
Further, another horizontal bar may be provided between the upper and lower horizontal bars 3.

The upper horizontal bar 2 is formed hollow, and a mounting groove 2a for the vertical bar 4 is formed on its lower surface, and handrails A1 and A provided in a portion other than the recess 1 of the parapet frame B are provided.
It is connected to 2.

The vertical crosspiece 4 is also composed of a hollow body with screw holes 5 formed in its longitudinal direction, and a back plate 6 is provided at its upper end.
are fixed to the screw holes 5, and the back plate 6 is fitted into the mounting groove 4 of the upper horizontal bar 2 and fixed to the upper horizontal bar 2 by screws 7. Further, the lower end portion of the vertical bar 4 is fixed to the lower horizontal bar 3 with screws 7.

The lower horizontal beam 3 has a U-shaped cross section with an open bottom, and has protrusions 8, 8 protruding from the lower part of the opposite wall, and supports are provided on the protrusions 8, 8 at the ends. Block 9 is fitted.

The support block 9 has an opening groove 10 that opens downward, and the opening groove 10 is formed to have a diameter equal to or larger than the diameter of a fixing means 11 such as a screw or bolt, and the opening end is in an expanded state. . A fixing means 11 such as a screw or bolt is disposed from the lower opening groove 10 of the lower horizontal bar 3 into the opening groove 10 of the support block 9 held therein, and its head is attached to the washer 1.
2, and is attached to the inner wall surface 1b of the recess 1. As a result, the support block 9 comes into contact with the inner wall surface 1b and is fixedly fixed, and at the same time, the lower horizontal bar 3 holding the support block 9 is also fixed.

Since the Kasagi is constructed as described above, when installing it in the recess 1 of the parapet frame B,
The upper and lower horizontal bars 2, 3 and these horizontal bars 2, 3 are arranged in advance in the recess 1 of the parapet frame B.
A handrail A is assembled from a plurality of vertical beams 4, 4, . . . connecting the vertical beams 4, 4, . The support block 9 is held within the lower horizontal bar 3 by being supported by protrusions 8, 8 formed opposite to each other at the lower part of the opposing wall of the lower horizontal bar 3. Next, the handrail A is placed inside the recess 1 of the parapet frame B, and fixing means 11 such as screws and bolts are attached to the lower horizontal beam 3.
The fixing means 11 is inserted into the lower opening groove 10 of the support block 9 through the opening thereof, and the head of the fixing means 11 is engaged with the inner end of the support block 9 directly or through a washer 12 or the like. It is fixed to the inner wall surface 1b of the recess 1. This allows the support block 9
The horizontal crosspiece holding the is also supported by the support block 9. Note that during the fixing work, a jig or the like for fixing the means to the inner wall surface 1b of the recess 1 can be inserted through the opening of the lower horizontal beam 3.

The fixing means 11 is attached in advance to a predetermined position on the inner wall surface 1b of the recess 1 of the parapet frame B, and when the handrail A is placed in the recess 1, the lower horizontal bar 3 is placed on the fixing means 11. At the same time, the fixing means 11 may be inserted into the opening groove 10 of the support block 9 and then fixed to the inner wall surface 1b of the recess 1.

As mentioned above, since the lower horizontal beam 3 and the support block 9 are open at the bottom, it is very easy to fix the support block 9 with the fixing means 11 such as screws and bolts, and the work of attaching the handrail A is simplified. It can be done easily. Further, since the support block 9 fixed by the fixing means 11 cannot move vertically within the lower horizontal bar 3, the lower horizontal bar 3 can be supported reliably. Also,
The support block 9 can move in the longitudinal direction within the lower horizontal bar 3, so when the recess 1 is deformed due to an earthquake or the horizontal bar expands or contracts due to temperature changes, it can accommodate these deformations. be able to. Note that the fixing means 11 is adjusted within the range of the opening groove 10.

Furthermore, when the handrail A configuration is such that the upper horizontal bar 2 and the lower horizontal bar 3 are both provided in the recess 1 of the parapet body B, the upper horizontal bar 2 is also provided in the same manner as the lower horizontal bar 3. It may be fixed to the inner wall surface 1b of the recess 1.

[Brief explanation of the drawing]

Fig. 1 is a front view of the handrail according to the present invention, Fig. 2 is an enlarged cross-sectional view of the main parts of the handrail, Fig. 3 is a cross-sectional view taken along the line X-X of Fig. 2, and Fig. 4 is the other parts of the handrail. FIG. 5 is a front view of a conventional handrail. Symbol A... Handrail, 1... Recess, 2... Upper horizontal bar, 3... Lower horizontal bar, 4... Vertical bar, 9... Support block, 10... Opening groove, 11... Fixing means, 1
2...Washer.

Claims (1)

[Scope of Claim for Utility Model Registration] In a handrail that is composed of upper and lower horizontal bars and a plurality of vertical bars that connect these horizontal bars and is disposed in a recess provided in the parapet frame, the inner wall surface of the recess A handrail characterized in that at least the lower horizontal bar is fixed to the holder as follows. (a) The lower horizontal bar shall be formed in a U-shaped cross section with an open bottom, and protrusions shall be formed facing each other at the lower part of the opposing wall. (b) A support block having an opening groove that opens downward is fitted and held on the protrusion at the end of the lower horizontal beam. (c) A fixing means such as a screw or bolt is disposed in the opening groove of the support block, and the fixing means fixes the support block to the inner wall surface of the recess.