JPS629183Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, when adjusting the mounting angle of a hand tractor handle or a relatively heavy object by one person, it was necessary to hold the handle etc. with one hand and operate the fastener with the other hand. It is already known to weld a grip part to the base of a threaded rod in a fastener, but burrs occur in the part where the grip part is welded, and even if the grip part is formed by press working, it does not return. When using these products, they were easy to damage the hands.

In an attempt to solve the above problems, the grip portion was polished and plated, but this resulted in extremely high costs.

Coating with synthetic resin or rubber may be considered instead of the polishing and plating method described above, but if the grip is held strongly and rotated repeatedly,
The coating material may peel off.

The present invention can be obtained at low cost by surface treatment with synthetic resin or rubber, etc., yet it feels good, does not hurt hands, and can be used repeatedly over a long period of time. It is an object of the present invention to provide a grip part tightening tool in which the coating material does not peel off. In the fastener, in which a grip part is fixed and a tool receiving part is provided in the receiving part, the grip part is molded by press working to form a dish shape, and the protruding part on the outer periphery faces the receiving part. , wherein the receiving part is provided with a tool receiving part, and a film made of synthetic resin, rubber, etc. is coated in a series over the grip part and at least a portion of the receiving part corresponding to the grip part edge. It is.

The embodiment shown in the drawings will be explained below.1
The engine 4 is installed at the front of the machine base 3 which has wheels 2 and 2.
The hand tractor is equipped with a handle frame 5 mounted on a transmission case at the rear of the hand tractor, and a pair of left and right handles 6, 6 are attached to the handle frame 5. The mounting direction can be changed back and forth.

The inner surfaces of the front ends of the handles 6, 6 are formed with chrysanthemum seats 6a, 6a, and these chrysanthemum seats 6
a, 6a are engaged with the chrysanthemum seats 7, 7 welded to both sides of the handle frame 5, and the front parts of the handles 6, 6 and the chrysanthemum seats 7, 7 are fastened with a fastener 8, The attachment 8 includes a screw rod 8a that is inserted into the chrysanthemum seats 7, 7, etc. and screwed into a screw hole in the front end of one of the handles 6;
It has a larger diameter and its stepped portion 9a is the other handle 6.
It consists of a receiving part 9 that presses against the outer surface of the base of the receiving part 9, and a grip part 10 that is welded to the outer end of the receiving part 9 and formed into a dish shape by press working. A hole 11 into which a rod-shaped body can be inserted is bored as a tool receiving part.

Further, after the fastener 8 is manufactured to the above-described configuration, the grip portion 10 and the hole 11 of the receiving portion 9 to the entire portion of the receiving portion 9 correspond to at least the edge of the grip portion 10 of the receiving portion 9. Grip part 1
0 and the receiving portion 9 are coated with a film 12.

Next, another example of the tool receiving part will be explained with reference to Fig. 4.The examples shown in Figs. 2 and 3 are formed of a round bar, whereas in this example, the receiving part 9' is formed in the shape of a hexagonal bar. The coating 12 made of synthetic resin or rubber is not coated near the base where the spanner is fitted.
The other parts are fully coated.

However, at least the portion corresponding to the edge of the grip portion 10 is coated.

Furthermore, to explain how to adjust the mounting angle of the handles 6, 6, first, in the example shown in FIGS.
Loosen the handles 6, 6 to the extent that you can turn them by hand, then loosen them further by holding the handles 6, 6 at the desired height, and hold the handles 6, 6 at the desired height with one hand, and use the other hand to turn the handles 10.
After holding and tightening the grip part 10 to bring the chrysanthemum seats 7, 7 into an engaged state, the rod-shaped body is inserted into the hole 11 and firmly tightened.

In addition, in the example shown in FIG. 4, the tightening tool 8 is rotated at the beginning of loosening by engaging the spanner in the part of the receiving part 9 which is not coated, and at the end of tightening, and the other operations are the same as in the above-mentioned example. It is similar to

During the above-mentioned operation, hold the grip part 10 with your hand and tighten the tightening tool 8.
It does not injure your hands when operating or assembling it, and it feels soft when you hold it.

Moreover, even if the grip part 10 is held and rotated many times, the coating 12 will peel off because it is coated continuously from the front and back surfaces of the grip part 10 to at least the portion of the receiving part corresponding to the grip part edge. There's nothing to do.

Note that a plurality of holes may be formed in different directions. In addition, the above-mentioned fastener is the handle frame 5 in Fig. 1.
It can also be applied to fasteners that fix the position of rotation in the front-back direction.

As mentioned above, the present invention provides a tightening system in which a receiving part with a larger diameter is integrally formed at the base of a screw rod, a grip part is fixed to the base end of the receiving part, and a tool receiving part is provided in the receiving part. In the dressing, the grip part is molded by press working to form a dish shape, and the protruding part on the outer periphery faces the receiving part, and the receiving part is provided with a tool receiving part, and the grip part and the receiving part A coating made of synthetic resin or rubber is coated over at least the edge of the grip and the corresponding area, so even if the fastener has burrs during press working or burrs from welding, they will not be removed by the synthetic resin. Since it is covered with a resin or rubber coating 12 and is not exposed, there is no risk of injury during operation or assembly, and safe work can be performed.

Further, even if the fastener is gripped many times and rotated repeatedly, the coating 12 will be removed from the entire front and back surfaces of the dish-shaped grip 10 at least in the portion corresponding to the edge of the grip of the receiving portion 9. Since the coating 12 is coated and the entire body is continuous, the coating 12 will not peel off, and safe work can be performed for a long period of time.

Furthermore, when coating the synthetic resin or rubber coating on the grip part 10 to the receiving part 9, it is extremely easy to do so by simply holding the tip of the screw rod and completely immersing the grip part 10 in the synthetic resin or rubber solution. It can be manufactured with high efficiency through a simple process and can be obtained at low cost.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of a hand tractor, Fig. 2 is a sectional view of the main part, Fig. 3 a is a plan view of the fastener, and b is A of a. -A
FIG. 4A is a plan view of another embodiment, and FIG. 4B is a C-C sectional view of FIG. 4A. 5... Handle frame, 6... Handle, 8... Fastener, 9... Receiving part, 10... Grip part, 12... Coating.

Claims (1)

[Scope of utility model registration request] In the fastening tool, in which a receiving part having a larger diameter is integrally formed at the base of the screw rod, a grip part is fixed to the base end of the receiving part, and a tool receiving part is provided in the receiving part, the grip part is formed into a dish shape by press working, and the protruding part on the outer periphery faces the receiving part,
A grip part characterized in that the receiving part is provided with a tool receiving part, and a coating made of synthetic resin, rubber, etc. is coated in a series over the grip part and at least a portion of the receiving part corresponding to the edge of the grip part. Fastener.