JPS642902Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a screw-fastening mechanism for a gutter holder used to attach an eaves gutter to the eaves of a roof of a building.

Conventional technology When attaching gutter brackets to the eaves using screws, bolts, and nuts, the conventional method was to drill a hole at the required mounting location, place the bracket in that position, insert a bolt upward from below, and then A common method is to support the bolt with one hand to prevent it from falling, and use the other hand to fit and tighten the nut onto the upwardly protruding end of the bolt.
However, gutter installation work often involves work at high places, making it difficult to operate with one hand, and the work can be dangerous if the scaffolding is unstable, making it impossible to perform the work quickly and efficiently.

Problems to be Solved by the Invention The present invention was made in view of the problems of the conventional technology, and its purpose is to solve the problem when attaching a gutter holder using bolts or screws. An inexpensive and highly practical gutter holder screw that allows you to tighten screws safely and reliably by simply pressing the bolt or screw into the mounting hole from below and it will not fall even if you release your hand. It is intended to provide a stopping mechanism.

Means for Solving the Problems In order to achieve the above object, the screwing mechanism of the gutter holder in the present invention is provided by the mounting member 1 of the gutter holder.
In a gutter receiver device, a male threaded body 7 with a head is inserted upward from below into a mounting hole 6 for bolts, screws, etc. provided in the gutter receiver, and a female threaded body 11 is screwed and tightened on the upper end protrusion. An engaging protrusion 9 is provided on the lower neck part 8 of the portion 7a with a small distance a from the head seat surface 7c, and the engagement protrusion 9 is forcedly press-fitted into the hole and engaged in a biting manner. A plurality of guiding oblique sides 9a and edges 9b protrude radially.

The engaging projections are formed in a rib or wing shape at least at two or more locations at equal circumferential intervals. The engaging projections are formed as the same body or as separate bodies that are attached to the shaft portion of the male threaded body by fitting them together.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the invention are illustrated in the accompanying drawings.

FIG. 1 shows a gutter holder whose vertical height can be adjusted steplessly in a sliding manner.
A screw rod 3 protruding from the base portion 2a is loosely inserted into a long hole 4 of the straight rod portion 1a and fastened with a wing nut 5 from the back side. A mounting hole 6 is opened in the mounting piece 1b on the upper side of the mounting member 1.

The screwing mechanism of the present invention is implemented in such a gutter holder.

Example 1 As shown in FIGS. 2 to 4, the male threaded body 7 has a head 7
a and a shaft part 7b, and rib- or vane-shaped engaging protrusions 9 are provided radially protruding from the neck part 8 at the base of the head part of the shaft part 7b at equal intervals around the circumference. In the illustrated example, there are four provided at equal intervals around the circumference, but the number can be any number greater than or equal to two. The tip end edge of each projecting piece 9 is formed into an inclined side 9a so as to lead insertion into the mounting hole 6. Further, the protruding piece 9 has an edge 9b erected to enable effective biting by press-fitting.

Embodiment 2 As shown in FIGS. 5 and 6, the above-mentioned engaging protrusion 9 is provided to protrude from the cylindrical boss 9', and is fitted into the lower neck portion 8 of the male threaded body 7. As long as the cylindrical boss 9' does not come out of the lower neck portion 8 of the shaft portion 7b, it will not make any difference even if the cylindrical boss 9' moves around a little. This second embodiment can be made of metal or plastic.

Operation The male threaded body 7 having the locking protrusion 9 is inserted upward into the mounting hole 6 of the mounting member 1 from below and forced into the mounting hole 6 as shown in FIG. 4. If you cannot press it in by hand, tap it in with a hammer. Then, the engaging protrusion 9
Because it is wedged into the mounting hole 6, it sometimes deforms as if it were crushed against the inner surface of the hole and is temporarily caulked, and after that, even if you release your hand, the male threaded body 7 does not fall off and remains attached to the mounting piece 1b. It is temporarily attached. Next, the male threaded body 7 is inserted into a mounting portion 10 such as an eave, and a male threaded body 11 such as a nut or wing nut is screwed onto the upper end protrusion and fastened.

Effects of the invention The present invention provides an engaging protrusion that is forcibly press-fitted into the inner surface of the hole and locked in the neck lower part 8 of the head 7a of the male threaded body 7 with a small distance a from the head seat surface 7c. 9 is provided, and the engaging protrusion 9 has an oblique side 9 for press-fitting guide.
A and edges 9b are made to protrude radially, so when the male threaded body 7 of the bolt or screw is forced into the mounting hole 6 of the gutter holder from below, it will be smoothly guided by the oblique side 9a. The engaging protrusion 9 wedges into the mounting hole 6, and the edge 9b bites into the inner surface of the mounting hole and is held in the proper position, so even if you release your hand, it will not accidentally fall out of the mounting hole. 11 can be fastened easily and quickly with one hand, and since the engaging protrusion 9 is formed at a distance a from the seat surface 7c of the head 7a, it can be tightened from the entrance of the mounting hole to the back. Since it engages in the inserted position, it has the effect of preventing it from being pulled out, and it is also possible to fit an elastic washer in the part of the gap a, which can also be expected to have the effect of preventing loosening. Furthermore, it is possible to prevent problems when tightening screws with nuts, significantly improving work efficiency, and the structure is simple and can be implemented at low cost.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the installed state of the gutter holder according to the present invention, Fig. 2 is an enlarged cross-sectional view taken along the line A-A in Fig. 1, Fig. 3 is a cross-sectional view of the lower part of the neck of the male threaded body, 4
The figure is a sectional view showing the state before press fitting, Figure 5 is a front view of the male threaded body of the second embodiment, and Figure 6 is Figure 5 B-B.
FIG. DESCRIPTION OF SYMBOLS 1... Mounting member, 6... Mounting hole, 7... Male screw body, 8... Neck lower part, 9... Engaging protrusion piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A male threaded body 7 with a head is inserted upward from below into a mounting hole 6 for bolts, screws, etc. provided in the mounting member 1 of the gutter holder, and a female threaded body 11 is inserted into the upper end protrusion. In the gutter receiver device, which is screwed and tightened, the male threaded body 7 is fixed to the lower neck part 8 of the head part 7a in a biting manner by force-fitting into the inner surface of the hole with a small distance a from the head seat surface 7c. A screwing mechanism for a gutter holder, characterized in that the engaging protrusion 9 is provided with a plurality of radially protruding engaging protrusions 9 consisting of oblique sides 9a and edges 9b for press-fitting guides. (2) In the gutter holder according to claim 1 of the utility model registration claim, the engaging protrusion 9 is formed integrally or separately with the shaft rod portion 7b of the male threaded body 7 and is integrally provided by fitting. Screw fastening mechanism.