JPS58732Y2 - Joist support device - Google Patents

Description

[Detailed description of the invention] This invention relates to a joist support device for installing joists (or joists) used for laying building floorboards on a floor surface such as a concrete floor, especially for low floors. The present invention relates to a joist support device that can be used for types.

An example of a conventional joist support device will be described based on FIG. 1. It includes a foundation plate 2 fixed to a concrete floor surface 1, and a pair of poles (3, 3) erected on both sides of this foundation plate 2.
A joist receiver 5 having bolt insertion holes 4, 4' at both ends corresponding to the upright positions of the bolts 3, 3', and a U-shaped metal fitting 6 fixed to the center of the joist receiver 5. The bolts 3 and 3' are inserted into the bolt insertion holes 4 and 4', and the joist receiver 5 is set to an appropriate height with the support nuts 7 screwed onto the bolts 3 and 3'. At the same time, a joist 9 is fitted into the inside of the U-shaped metal fitting 6, and a pin 10 is communicated with a through hole bored at the upper end of both side walls.
There was one in which the joists 9 were held by tightening them with nuts 8.

However, in the conventional joist support device described above, the lengths of the poles 3 and 3' erected on the base plate 2-L are standardized in advance and fixed by welding on the base plate 2. ) When a joist support device consisting of bolts 3 and 3' is used for a low floor type (a type in which the height distance between the floor plate and the concrete floor is small), the bolts 3 and 3' are installed vertically. , 3' will protrude above the upper end of the U-shaped bracket 6, making it impossible to install the floorboard.Furthermore, when attaching the floorboard, screws are used, but the screws come into contact with the bolt heads. Floor noise may occur, so when using this joist support device on a low floor type, either cut 3 and 3' short, or use a joist support device with a shorter bolt size. Must be
The problem was that the work was complicated.

This idea was devised in view of the current situation, and
The purpose of this is to support the joist brackets with bolts to the support brackets fixed to the concrete floor surface, etc., by simply changing the bolt length. The purpose of the present invention is to provide a joist support device that can be easily applied to both large-spacing types and low-floor types.

This invention will be described in detail below based on embodiments shown in the accompanying drawings.

2 to 5 show a first embodiment of this invention, and in this embodiment, the joist support device N includes a support metal fitting 10 fixed to the concrete floor surface 1, and a support metal fitting 10 fixed to the concrete floor surface 1.
0 and the support metal fitting 10
Pol 1-4 that connects to the joist bracket 60 in a height-adjustable manner
0.40'.

The support fitting 10 includes a bottom portion 14, a pair of side plates 18, 18' erected at both ends thereof, and a pair of horizontal plates 12, 12 held at a predetermined height by the side plates 18, 18'.
' The horizontal plate 12.12
Bolt insertion holes 13 and 13' are provided in '.

- The joist receiving metal fitting 60 has flanges 2L21' having bolt insertion holes 22, 22' on both sides, and is composed of a generally U-shaped metal fitting formed to be able to accommodate a joist inside. In the embodiment, it is constructed by combining an inverted net-shaped member 20 and a U-shaped metal fitting 30 fixed to its recess.

Further, the bolts 40, 40' are inserted into the bolt insertion holes 13, 1.
3' and the bolt insertion holes 22, 22', and the horizontal plate 12°12' and the flanges 21.21
' by holding the joist bracket 60 into the support bracket 1.
0 at the desired position.

Fixing pieces 15 and 15' are provided on the front and rear surfaces of the bottom part 14 of the support fitting 10 and project outward. A hole for inserting the concrete (11°11') for fixing the metal fittings (
(not shown), and a reference line 17 is provided for accurately positioning the fixing position of the joist support device N by matching it with the marked line 16 drawn on the concrete floor surface 1 of the support fitting 10. It is being

Next, using the joist support device N according to the above embodiment, the joist 9 is
The case of supporting and fixing will be explained.

First, align the reference line 17 of the support fitting 10 with the marking line drawn on the concrete floor 1, and then set the concrete pile I.
Fix the support fitting 10 to the concrete floor surface 1 with L11', and then insert the bolts 40 and 40' into the bolt insertion holes 13 and 1.
3', 22.22' and the above port) 40.40'
The joist bracket 60 is fixed at an appropriate height position as shown in FIGS. 3 to 5 using a supporting nut n screwed into the U bracket 30, and the joist 9 is fitted inside the U bracket 30. Insert the pin 3 into the through hole drilled at the upper end of both side walls of the metal fitting 300.
The joists 9 are fixed by connecting the joists 1 to 1 and tightening the nuts 32, and a floorboard is laid on the upper surface of the joists 9.

In this case, the length of the bolts 40, 40' of the joist support device N is such that when used for a high floor type, long bolts are used, and when used for a low floor type, the lower ends do not contact the concrete floor surface. Short dimension bolts can be used.

6 and 7 show a second embodiment of this invention. In this embodiment, unlike the first embodiment, the support fitting 50 is formed in a substantially C-shape. , the structure and function of the joist receiving fitting 60, the fixing piece 15 of the supporting fitting, and the reference line 17 are completely the same as in the first embodiment, so the same reference numerals as in the first embodiment are attached to the drawings, and details thereof are not shown. The explanation is omitted here.

As shown in FIG. 6, the support fitting 50 according to this embodiment has horizontal plate 5L51 by bending the upper portions of both side walls inward.
', and bolts 40.4 are attached to this horizontal plate 51°51'.
A bolt insertion hole 52° 52' is opened, and a bolt 40 is inserted into the bolt insertion hole 52, 52' and the bolt insertion hole 22° 22' provided in the flanges 21, 21'.
The joist holder 60 is held by 40'.

As described above, in this invention, the bolts supporting the joist bracket are attached to the horizontal plate of the support bracket placed above the floor surface, so unlike conventional joist support devices, the bolts can be easily replaced. Can be done.

Therefore, short bolts used when the floor is low and long bolts used when the floor is high can be used interchangeably, so there is no need to prepare various types of joist support devices as in the past, and it is possible to It can also be used in support structures.

Therefore, in the joist support device according to this invention, the heads of the bolts do not protrude above the upper ends of the joist support metal fittings, so there is no problem that the floorboards cannot be laid, and moreover, the joist support device This has the effect that fixing work, joist support work, height adjustment work, etc. are easy.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the configuration of a conventional joist support device;
The figure is an exploded perspective view showing the configuration of the joist support device according to the first embodiment of this invention, FIGS. 3 to 5 are cross-sectional explanatory views showing the usage state of the joist support device, and FIG. 7th exploded perspective view showing the configuration of the joist support device according to the second embodiment;
The figure is an explanatory cross-sectional view showing how the joist support device is used. N... Joist support device, 1... Concrete floor surface, 1
0.50...Support metal fittings, 12.12'...Horizontal plate,
13, 13'... Bolt inserter L 20... Inverted hat-shaped member, 21. 21'... Flange, 22, 22
'...Bolt insertion hole, 30...U-shaped fitting, 40,4
0'...Bolt, 60...Joist bracket.

Claims (1)

[Scope of utility model registration request] A U-shaped support having a pair of horizontal plates with bolt insertion holes located at an appropriate height above the floor surface, and a pair of horizontal plates with bolt insertion holes positioned above the pair of horizontal plates. A U-shaped joist holder that has flanges on both sides and can accommodate a joist inside, and a joist holder that is inserted through both bolt insertion holes of the horizontal plate button and flange, and the height of the joist holder can be adjusted with a nut. A joist support device consisting of bolts held in place.