JPH0740018Y2 - Fastening mechanism for gutter bracket - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a gutter receiving metal fitting for attaching a gutter to the eaves, in particular, the gutter receiving metal is fastened with a one-touch quick temporary fixing and then screwed. The present invention relates to a fastening mechanism of a gutter receiving metal fitting that enables continuous tightening.

[Prior Art] Conventional devices are disclosed in Japanese Utility Model Publication No. 50-31944, No. 50-31947, and Japanese Utility Model Publication No. 54-53720. As shown in FIG. 4, a typical conventional fastening device is provided with a screw 43 on the entire shaft rod 41 having a head 42 at one end, and a wing nut is attached to this.
It is the one that screws 47 together. The fastening method is
The two rods to be fastened 48.49 are put together, the shaft rod 41 is first inserted into the bolt hole 45.46, and the head 42 is pressed by hand, and the wing nut 47 is screwed from the other end through the washer 44 to make it lighter first. It was common to tighten the nuts and then tighten the nuts to make the final tightening. Therefore, the work of fastening a large number of mounting brackets has to be done manually by an operator one by one, and it has not been possible to automatically perform mounting by screw tightening using an automatic machine. However, in order to quickly and properly carry out the installation work of the gutter at a high place, it is necessary to work efficiently using an automatic machine, so automation is required, and a fastening mechanism that replaces the conventional bolts and nuts is required. Was desired to be developed.

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned problems of the related art, and the purpose thereof is to quickly and temporarily operate with one touch without screwing first. This is a gutter bracket fastening mechanism that has a simple structure and can be implemented at low cost because it is fixed in a stopper shape and then main fastening by screw fastening can be performed easily and reliably continuously using an automatic machine. Is provided.

[Means for Solving the Problem] In order to achieve the above object, the fastening mechanism of the gutter receiving metal fitting in the present invention comprises a gutter receiving member 10 formed by bending a strip metal and its mounting member 11. In a trough receiving metal fitting in which opposite fastening target parts 20.21 of the trough receiving metal fitting are fastened by bolts and nuts screws, a predetermined distance is provided from under the head neck of the shaft rod 1 having a head 2 at one end. A threaded portion 3 that can be screwed into the fastening nut 7 is formed at an intermediate position, and the shaft portion from this threaded portion to the tip is a straight threadless portion 4 into which the fastening nut 7 can be loosely engaged. And the threadless part 4
The caulking portion 5 for preventing the nut 7 from coming off is formed at the tip of the.

The fastening mechanism forms a threaded portion under the head of the shaft rod so as to be continuous with the threaded portion.

[Operation] Each fastened part of the two gutter receiving members 10 and the mounting member 11 to be fastened
20.21 are aligned, the shaft rod 1 is inserted into the mounting hole 13.14, and the washer 8 and the nut 7 are fitted from the tip of the protruding portion. Axle 1
Since the tip of is a straight threadless portion 4, the nut 7
Is mounted in a swinging manner.

Then, when the caulking portion 5 at the tip of the shaft rod is tapped with a hammer or the like, it is deformed so as to laterally project as shown in FIG. 3 to form the locking collar 5a, and the nut 7 is in a retaining shape.

The above work is performed manually or by using an automatic machine to temporarily fix a large number of gutter receiving fittings.

After that, if the nut 7 is rotated by further pushing it in, the screw hole 7a of the nut and the screw part 3 in the middle of the shaft rod 1 are screwed together, so that the fastened part 20.21 is between the head part 2 and the nut 7. It is pinched and strongly tightened. The screwing operation of the nut 7 and the screw portion 3 is performed by rotating the nut 7 manually or automatically,
Alternatively, the head 2 side is fastened by rotating with a tool or an automatic machine using the plus or minus engaging groove 9.

[Embodiment] FIG. 1 shows a gutter receiving metal member formed by bending a strip metal having a constant narrow width, and comprises a gutter receiving member 10 and its mounting member 11.

A fastened portion 20.21 is formed on the rear upper end 10a of the gutter receiving member 10 and the hanging piece 11a of the mounting member 11, and the shaft rod 1 is inserted through the mounting hole 13.14 and fastened with the nut 7. A wing nut may be used as the nut 7, or a normal square nut may be used. The mounting hole 14 of the hanging piece 11a is a long hole.

The head 2 of the rod 1 is formed into a blade shape, a square shape, or a square shape,
Although a positive or negative locking groove 9 is provided at the top, it may not be provided.

Teeth 6 for preventing rotation are formed on the seat surface of the head 2.

The caulking portion 5 has a hollow tubular shape or a vertical grooved shape, and when tapped with a punch or the like, the caulking portion 5 easily expands laterally to form the locking portion 5a.

An elastic washer is used as the washer 8.

[Advantage of the Invention] According to the present invention, the threaded portion 3 that can be screwed with the fastening nut 7 is formed at an intermediate position at a predetermined distance from under the head of the shaft rod 1 having the head 2 at one end. At the same time, the shaft portion from the threaded portion to the tip is formed as a straight threadless portion 4 in which the fastening nut 7 can be loosely fitted, and the tip of the threadless portion 4 serves to prevent the nut 7 from coming off. Since the caulking portion 5 is formed, when the nut 7 is loosely fitted to the straight threadless portion 4 at the tip of the shaft rod 1 and the tip portion is tapped and caulked, the caulking portion 5 is formed at the tip. Is formed so that the nut 7 is prevented from coming off and the gutter receiving member 10 and the mounting member 11 are temporarily joined together. Therefore, unlike the conventional case, the screw can be temporarily fixed without screw turning operation. Or, you can perform temporary fixing work quickly and surely with one touch using an automatic machine. Both then a series of the fastening operation can be performed speedily and accurately be easily leading from tacking by threadedly turning lightly pushed useless nut 7 to the fastening.
Moreover, the structure is simple, the mounting work is highly reliable, the cost is low, the cost is low, and the effect is practically excellent.

[Brief description of drawings]

FIG. 1 is a side view of a gutter receiving metal fitting according to the present invention, and a part thereof shows a cross section. 2 is a side view of a shaft rod, FIG. 3 is an enlarged sectional view of a fastening portion according to the present invention, and FIG. 4 is a sectional view of a conventional fastening portion. 1 ... Shaft rod, 2 ... Head part 3 ... Screw part, 4 ... Unthreaded part 5 ... Crimping part, 6 ... Tooth 7 ... Nut, 8 ... Washer 9 ... Engagement groove, 20.21 ...... Fastened members

Claims (2)

[Scope of utility model registration request] 1. A gutter receiving member 10 formed by bending a strip metal and a mounting member 11 of the gutter receiving metal fitting, which are opposed to each other to be fastened to each other, are fastened with bolts and nuts. In the gutter receiving metal fitting, a screw portion 3 that can be screwed with a fastening nut 7 is formed at an intermediate position at a predetermined distance from under the head neck of a shaft rod 1 having a head 2 at one end, and this screw The shaft portion from the portion to the tip is a straight screwless portion 4 to which the fastening nut 7 can be fitted, and the screwless portion 4
A fastening mechanism for a gutter receiving fitting, characterized in that a caulking portion 5 for preventing the nut 7 from coming off is formed at a tip portion of the. 2. A fastening mechanism for a gutter receiving fitting according to claim 1, wherein a threaded portion 3'is formed below the head of the shaft rod 1 so as to be continuous with the threaded portion 3.