JPH0853884A - Post joint structure in unit construction method - Google Patents

Abstract

PURPOSE:To make it possible to bind together simply by loading and facilitate execution of work and shorten a construction period by threading a cone-shaped pin having a recessed stage with the upper end of a lower floor post and installing a pin hole having a fork-shaped locking member to the lower end of an upper floor post. CONSTITUTION:A cone-shaped pin 2 having a recessed stage 2a is threaded with a nut 1a installed to a lower board 1 of a post X of a lower floor unit. A locking member 6 made of a flexible material is installed to an upper board 3 of a post Y of an upper floor unit. The tip of the locking member 6 is locked with the recessed stage of the pin 2a so that both the upper and lower units may be united. In case when the engagement is released, a wrench is inserted from a hole 10 and a bolt 9 is turned so that the spacing of the locking member 6 may be expanded and separated from the recessed stage 2a of the pin 2. This construction makes it possible to omit such work as bolt fastening or the like and eliminate the need for welding with the lower material of the nut, and thereby prompt the execution of work and shorten a construction period and reduce cost as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure for pillars in a unit construction method.

[0002]

2. Description of the Related Art Conventionally, there are a ramen construction method and a unit construction method in a prefabricated house. In the latter unit construction method, a box-shaped room or a part of the room is assembled into a unit. And columns are formed in each even corner of each of these box-shaped units,
The downstairs unit and the upstairs unit are connected by a joint formed on the upper and lower ends of each pillar.

However, in these joints, a nut is welded to a plate at the upper end of the pillar of the downstairs unit. A hook is screwed onto the nut to attach the nut, and then the unit is lifted. Replace the hook with a pin,
Positioning is performed when the upper and lower units are joined.The downstairs unit and the upstairs unit are fitted together, and the beams extending from the upper ends of the posts of the downstairs unit and the upstairs unit are bolts and nuts above and below. The method is as follows. (Figs. 7a, 7b, 8).

Therefore, since the downstairs and the beam on the upper floor are fastened and fixed with bolts and nuts, it is necessary for a worker to climb to a high place and work manually, and a space for fastening the bolts and nuts. Therefore, it is necessary to provide an opening in the floor plate where the bolts and nuts of the unit above the floor are fastened, and the worker tightens and fixes the bolts and nuts to fix the openings in the floor plate. There is a drawback in that the work is dangerous and complicated, for example, it is necessary to floor the floor, there is a limit to the shortening of the construction period, the construction period becomes longer, and the cost becomes higher.

[0005]

Therefore, the present invention has been invented to eliminate the above-mentioned drawbacks, and the downstairs unit and the upstairs unit can be automatically fastened, and the work is simple and quick. The purpose of this is to develop a joint structure of pillars in the unit construction method that can shorten the construction period and lead to cost reduction.

[0006]

According to the present invention, a lower base plate having a hole at the upper end of a downstair column and having a screw formed on the inner surface of the hole is provided with a recessed step portion downwardly. A conical screw pin having a screw is attached, an upper substrate is provided at the lower end of the upper pillar, and a hole through which the pin is inserted is provided in the upper substrate, and a casing that surrounds the hole on the upper surface of the upper substrate. A bifurcated locking member which is made of a flexible material and has an upper end fixed and a lower end fitted into the concave step portion of the conical screw pin. Is provided so as to be suspended, and the locking member is provided with a releasing device, which is constituted by a joint structure of a pillar portion in a unit construction method.

[0007]

[Operation] When mounting and fixing the upstairs unit on the downstairs unit, each pin protruding from the lower board provided on the upper end of each pillar of the downstairs unit is used to suspend the upstairs unit by a crane or the like. Each pin is formed in a conical shape by loosely fitting it into each hole of the upper substrate provided at the lower end of each column and then pressing it into the inside of the bifurcated locking member provided in each casing. Therefore, the tip of the locking member slides while being pushed out, and when it reaches the lower end of the pin, it can be fitted and fixed in the concave step,
Further, when detaching, the releasing device is used for the pin and the locking member.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings. The lower base (X) is bar-processed at its upper end, and the inner surface is provided with a lower substrate (1) processed by screws (1a). A cone-shaped screwed pin (2) having a concave step portion (2a) on the lower side thereof is screwed on (1a), and an upper substrate (3) is provided at the lower end of the floor pillar (Y). The upper substrate (3) has a hole (4) through which the pin (2) is inserted, and a casing (5) surrounding the hole (4) is provided on the upper surface of the upper substrate (3). A bifurcated locking member, which is made of a flexible material, has an upper end fixed and a lower end fitted into the concave step portion (2a) of the conical screw pin (2). (6) is provided so as to be suspended, and the locking member (6) is provided with a releasing device (A).

Further, the releasing device (A) has a hole (7) provided on the side surface of the casing (5) and a screw hole formed in one of the two forks of the locking member (6) in the hole (7). (8),
By screwing into the screw hole and pressing the other of the two forks, the fork of the locking member (6) is expanded and the lower end fitted to the recessed step portion (2a) of the screwed pin is removed. It is composed of a detaching screw (9).

The bifurcated locking member (6) is made of a spring steel material, and even if it is expanded by a pin,
It is urged so as to return to its original state, and a wrench hole for inserting a wrench (Z) for tightening the detaching screw (9) is provided on one side surface of the upper pillar (Y) ( 1
0) is provided.

The wrench hole (10) is formed at a position where it can be easily used, avoiding the inner even corners, and accordingly, the hole of the casing (5) fixed to the upper substrate (3). The orientation of the locking member (6) and the locking member (6) are also provided according to the position of the wrench hole (10).

The bolts (11) fix the upper substrate (3) and the casing (5), but they are merely an example of fixing means, and the fixing means may be other means.

The bolt (12) is for fixing the bifurcated locking member (6) and the casing (5), and the detent washer (13) is inserted to caulk the casing (5). 5) The nut (15) is also fastened and fixed to the upper surface via the washer (14).

Further, a recess (16) is provided on the inner wall of the bifurcated locking member (6) which comes into contact with the tip of the disengagement screw (9), and the bolt (12) is screwed to press the bifurcated part. The locking member (6) may be configured to be surely pushed out.

[0015]

According to the present invention, the conical pins (2) are provided so as to project from the upper end of the lower substrate of each pillar (X) of the downstairs unit, and the upper substrate of the pillar (Y) of the upstairs unit is provided. When (3) is placed with the pin positioned, the forked locking member (6) in the casing (5) is automatically fitted, and the downstairs unit and the upstairs unit can be integrally joined, Even when there is no work such as tightening bolts, and when releasing, a releasing device is used, a wrench is inserted into the hole formed in the side surface of the column, and the detaching screw (9) is rotated. ) One side of the pin is pushed apart, and the tip of the locking member (6) fitted to the stepped portion of the pin is released, so that the coupled state is released and the pin can be easily detached. Since it is integrally formed, there is no need to weld the nut to the lower base material, which is convenient. Engineering is easy and fast done result, the shortening of the construction period, but exert a very beneficial Naru effects such as the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention before joining.

FIG. 2 is a cross-sectional view showing an embodiment of the present invention during joining.

FIG. 3 is a cross-sectional view showing an embodiment of the present invention after completion of joining.

FIG. 4 is a sectional view showing an embodiment of the present invention.

FIG. 5 is a locking member used in the present invention, (a) is a plan view, (b) is a side view, and (c) is a front view.

FIG. 6 is a casing used in the present invention (a)
Is a plan view and (b) is a side view.

FIG. 7 is an explanatory diagram showing a conventional construction example.

FIG. 8 is an explanatory diagram showing a conventional example. (A) is a partial cutaway side view showing a conventional example, and (b) is a partial cutaway perspective view showing a conventional example.

FIG. 9 is a partially cutaway sectional view showing a structure of an upper end portion of a column of a conventional example.

[Explanation of symbols]

 1 Lower board 1a Nut 2 Pin 2a Recessed step 3 Upper board 4 Hole 5 Casing 6 Locking member 7 Hole 8 Screw hole 9 Detaching screw 10 Wrench hole 11 Bolt 12 Bolt 13 Non-rotating washer 14 Washer 15 Nut 16 Recess A Release device X Lower pillar Y Upper floor Z Z wrench

Claims (3)

[Claims] 1. A lower base plate having a hole at the upper end of a downstair column and having a screw formed on the inner surface of the hole, and a conical screw pin having a recessed step portion downwardly is provided in the screw hole. The upper board is provided at the lower end of the upper pillar by screwing, and the upper board has a hole through which the pin is inserted, and a casing surrounding the hole is fixed to the upper surface of the upper board. Is a flexible material, the upper end of which is fixed, and the lower end of which is fitted to the concave step portion of the conical screw pin, and which is provided with a bifurcated locking member suspended. The joint structure of the pillar portion in the unit construction method, wherein the locking member is provided with a releasing device. 2. The lower substrate at the upper end of the downstairs column is characterized in that, in order to approximate the plate thickness, the drawing process is performed stepwise, the post-hole processing is performed, and then the bar is raised and the inner surface is threaded. The joint structure of the pillar portion in the unit construction method according to claim 1. 3. A release device is provided with a hole provided on a side surface of a casing, a screw hole formed in one of two forks of a locking member in the hole, and a screw hole that is screwed into the screw hole and presses the other of the two forks. The pillar in the unit construction method according to claim 1, characterized in that it comprises a disengagement screw for expanding the bifurcation of the engaging member and disengaging the lower end fitted to the concave step portion of the screwed pin. Joint structure of the part.