JP3016121U - Joist support - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] When the joist is pushed up by the plate on the basis of the turnbuckle by forming a cut-and-raised protrusion on the upper plate for supporting the joist, the upper plate is automatically attached to the joist. Providing a fixed joist support. [Structure] The upper and lower screw rods of a turnbuckle are composed of a main body 1 which also has a screw hole 11 formed on the upper and lower sides and also serves as a grip, a screw rod 2 screwed into the screw hole, and a nut 3 for fixing the screw rod. In a joist supporting tool in which mounting plates 4 and 5 are horizontally fixed to the upper and lower ends respectively, a plurality of protrusions 41 having sharp upper ends are cut and formed on the upper plate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a joist support using a turnbuckle for correcting a floor, that is, a joist, which is lowered by a heavy load such as furniture placed on the floor.

[0002]

[Prior art]

 Conventionally, a joist supporting tool using this kind of turnbuckle is known.

[0003]

[Problems of conventional technology]

 However, in the conventional joist support of this kind, in order to fix the horizontal plate for attachment to the joist, it is necessary to insert a nail through the hole of the plate and then drive it into the joist to fix it. It was difficult for a worker who entered the floor to hammer the nails from the bottom to the top, and the work efficiency was poor.

[0004]

[The purpose of the device]

 In order to solve the above-mentioned problems of the prior art, the present invention forms a cut-and-raised protrusion on an upper plate for supporting joists and automatically pushes joists with a plate by the turnbuckle principle. The purpose is to provide a joist support in which the upper plate is fixed to the joist.

[0005]

[Disclosure of device]

 The joist support according to the present invention includes a main body that also serves as a grip and has upper and lower screw holes, a screw rod screwed into the screw hole, and a nut for fixing the screw rod. In a joist support in which mounting plates are horizontally fixed to the upper and lower ends of the rod, a plurality of protrusions having sharp upper ends are cut and raised on the upper plate.

[0006]

[Operation of the device] When the joist is pushed up by the action of the turnbuckle, the protrusion protruding from the plate top bites into the joist bottom.

[0007]

【Example】

 FIG. 1 is a front view of the present invention joist support, FIG. 2 is a side view thereof, FIG. 3 is a plan view thereof, and FIG. 4 is a joist A fixed to the lower surface of a floor material by a plurality of present invention joist supports ... FIG. 1 is an explanatory view of a state in which A is supported. Reference numeral 1 is a long turnbuckle body which also serves as a grip portion and has an empty central portion, and screw holes 11 and 11 are formed at upper and lower ends, respectively When the rods 2, 2 are screwed into the holes 11, 11 and the main body 1 is rotated with the rotation of the rods 2, 2 stopped, the screw rods 2, 2 expand and contract vertically. Reference numerals 3 and 3 denote nuts that are screwed to the screw rods 2 and 2, and fix the screw rods 2 and 2 at their positions by tightening the nuts on the top and bottom of the main body 1. 4 is an attachment plate for fixing the joist A horizontally fixed to the upper end of the upper screw rod 2, on which a plurality of projections 41 having sharp tips are formed by punching and punching. A vertical flange 42 that contacts the side surface of the joist A is integrally formed, and nail holes 43, 43 for fixing with nails are formed. Reference numeral 5 denotes a mounting plate horizontally fixed to the lower end of the lower screw rod 2 for fixing to the ground B under the floor, and has nail holes 51, 51 for fixing to the ground with nails.

An operator goes under the floor with a plurality of joist supports of the present invention, and rotates the main body 1 at a position where the joist A is lowered to a height from the ground B to the joist A by a distance of the plates 4 and 5. After adjusting with this, the lower plate 5 is fixed to the ground B with a nail, and then the main body 1 is rotated and the joist A is pushed up to a predetermined height by the upper plate 4. At this time, the projections 41 ... 41 bite into the lower surface of the joist A, and the joist and the upper plate 4 are automatically integrated. After pushing the joist A up to a predetermined height by the upper plate 4, if the nail is driven laterally through the nail holes 43, 43 of the flange 42 integral with the upper plate 4, the plate 4 is securely fixed to the joist and the nut. Tighten 3 and 3 to complete the joist correction. Even if the flange 42 is not provided, the protrusions 41 ... 41 bite into the joist A to prevent lateral displacement.

[Effect of device]

 According to the joist support according to the present invention, the upper plate that supports the joist is formed by cutting and raising a plurality of protrusions having a sharp upper end.Therefore, the turnbuckle body is pushed up to correct the slack of the joist. By simply rotating it, the protrusion bites into the bottom surface of the joist, and the joist can be fixed to the upper plate without complicated nailing work, which allows the worker to work in a comfortable posture. It is possible to improve efficiency.

[Brief description of drawings]

FIG. 1 is a front view of a joist support according to the present invention.

FIG. 2 is a side view of the joist support according to the present invention.

FIG. 3 is a plan view of a joist support according to the present invention.

FIG. 4 is an explanatory view showing a state where the joists are supported by the joist supporting tool of the present invention.

[Explanation of symbols]

1 Turnbuckle body 4 Upper mounting plate 2 Screw rod 5 Lower mounting plate 3 Nut

Claims (1)

[Scope of utility model registration request] 1. A main body 1 also serving as a grip part, in which upper and lower screw holes 11 are formed, screw rods 2 and 2 screwed into the screw holes, and nuts 3 and 3 for fixing the screw rods. In a joist support in which mounting plates 4 and 5 are horizontally fixed to the upper and lower ends of the upper and lower screw rods 2 and 2 of the turnbuckle, the upper plate 4 has a plurality of projections 4 having sharp upper ends.
A joist support characterized by being formed by cutting and raising 1 ... 41.