JPH0224627Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to handles for various work tools and other instruments.

In the conventional handles of various instruments, the means for attaching the grip to the handle rod is to fit a wig on the front end of the wooden grip inserted into the metal handle, and to connect these three parts. It is common practice to insert a pin into a hole that passes through the handle and swage it in place, or to rivet it through the handle, or to attach the tail end of the handle to the end of the handle. Measures were taken such as taking it out and caulking it here. However, when such a mounting means is used, the strength of the part is reduced by passing through the through hole, causing damage, and the manufacturing process is labor-intensive, resulting in high costs.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a handle for an instrument with a new attachment means that eliminates these drawbacks.

The structure and operation of the present invention will be explained based on the embodiments shown in the drawings.

Reference numeral 1 denotes a metal handle having an appropriate length, and an arbitrary instrument a is constructed at the front end of this handle. Reference numeral 2 denotes a hexagonal square rod portion formed on the rear side of the handle rod 1, and narrow grooves 3, 3' are provided around the square rod portion at appropriate positions in the front and rear. 4, 4' are these grooves 3, 3'
5 is a wooden gripping body formed into an arbitrary external shape, and a circular hole in the longitudinal center of this gripping body is inserted into the square rod part 2 of the handle rod 1 with force. A hole 6 passes through it. Reference numeral 7 denotes a front wig whose circumferential surface is tapered to match the front concave portion 11 which is formed by cutting the circumferential surface into a tapered shape at the front end of the grip 5; It is firmly fixed to the shaped part 11. Reference numeral 8 denotes a katsuragane after cutting the circumferential surface into a tapered shape on the rear end of the grip body 5 so that the circumferential surface that matches the concave portion 12 becomes tapered; It is firmly fixed to the shaped part 12.
Reference numerals 9 and 10 denote narrow diameter opening ends of the front and rear wig metals 7 and 8, each having a tapered peripheral surface, and the peripheral edge of the narrow diameter opening end has a shape matching the cross-sectional shape of the square rod. The tsuba 9′ is bent slightly inward.
10'. 2' and 2'' are square parts that are exposed when the gripping body 5 is forcefully inserted into the square rod part 2 of the handle rod 1, and in the case of a universal joint trench as shown in the figure, this square part 2 ′、
Work is done by fitting a spanner or monkey key to the 2".

Therefore, when attaching and fixing the grip body 5 to the square rod part 2 of the handle rod 1, the circumferential surfaces at both the front and rear ends of the grip body 5 are first formed into tapered front and rear concave portions 11 and 12.
The front wig metal 7 and the back wig metal 8 are firmly fixed to the respective sides. Therefore, after the elastic ring 4 is engaged with the groove 3 on the front side of the square rod part 2, the gripping body 5 is inserted by applying strong pressure to the circular through hole 6 from the tail end direction of the square rod part 2. Eventually, the outer surface of the peripheral flange 9' of the narrow diameter opening 9 of the front wig 7 comes to a position where it comes into contact with the elastic ring 4 and stops. At this time,
Since the outer surface of the peripheral protrusion 10' of the narrow diameter opening 10 of the rear wig metal 8 of the grip body 5 is located just in front of the groove 3' on the rear side of the square rod part 2, one more The elastic ring 4' is engaged with the groove 3' and comes into contact with the outer surface of the peripheral flange 10' of the narrow diameter opening 10.
By such a method, the grip body 5 is fixed integrally by the square rod part 2 that bites into the inner circumferential wall of the circular through hole 6 inside thereof, and both front and rear ends of the grip body 5 are fixed by the elastic rod part 2 on the square rod part 2. It is restrained and fixed by the rings 4, 4'.

In this way, the present invention forms a square rod part 2 on the handle rod 1 provided with an arbitrary device at the front end, and also provides grooves 3, 3' at appropriate positions in the front and back of this square rod part, and on the other hand,
Concave portions 11, 1 whose circumferential surfaces are tapered off at the front and rear ends of the grip body 5, which is formed into an appropriate external shape and has a circular through hole 6 in the central portion in the longitudinal direction.
2, and wig metals 7 and 8 that match the tapered surfaces of the concave portions are firmly fixed to both of the concave portions, respectively.
The narrow-diameter openings 9 and 10 of both wig metals, each having a tapered peripheral surface, are provided with protruding ribs 9' and 10' having a shape matching the cross-sectional shape of the square rod and bent inward. Elastic rings 4, 4' are fitted in the front grooves 3, 3' of the square rod portion of the handle rod, and the circular through-hole portion of the grip body with wig metals fixed to both front and rear ends is inserted into the handle rod. The outer surface of the peripheral protrusion of the narrow diameter opening of the front wig is brought into contact with the elastic ring on the front concave groove by strongly inserting it into the square rod from the tail end direction of the square rod, and the other elastic ring is The handle is fixed to the handle rod by engaging the groove on the rear side of the square rod and abutting against the outer surface of the peripheral flange of the narrow diameter opening of the rear katsuragane. The mounting structure eliminates the need for any holes for inserting pins, etc., which pass through between the handle rod and the handle rod, and the grip body manufactured by The strength of the entire handle, including the handle, has increased, and this strength can be maintained for a long period of time, making it possible to use it with confidence at all times. This makes the overall appearance of the handle smarter, and the installation method is relatively simple, making it possible to assemble the entire handle quickly and efficiently and reducing production costs. , its practical effects are great.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a front view of the whole when completed, Fig. 2 is a sectional view taken along line A-A of the same, Fig. 3 is a perspective view of the whole before assembly, and Fig. 4 The figure is a perspective view of the main part during assembly, and FIG. 5 is a partially cutaway perspective view of the main part after assembly.

Claims (1)

[Scope of utility model registration request] A square rod is formed on the handle rod with an arbitrary tool attached to the front end, and concave grooves are provided at appropriate places on the front and back of this square rod.On the other hand, it is formed into an appropriate external shape and has a circular passage in the center in the longitudinal direction. A concave part is formed by cutting the peripheral surface into a tapered shape at the front and rear ends of the gripping body provided with a hole, and a wig metal that matches the tapered surface of the concave part is strongly pressed into both of these concave parts. A protruding flange having a shape that matches the cross-sectional shape of the square rod and bent inward is provided on the periphery of the narrow diameter opening of both of these wig metals, which are fixed and have a tapered peripheral surface. An elastic ring is engaged in the front groove of the square rod part of the handle rod, and a circular hole part of the grip body with wig metal fixed to both the front and rear ends is inserted into the square rod part of the handle rod from the direction of the tail end of the square rod part. The outer surface of the peripheral protrusion of the narrow diameter opening of the front wig is brought into contact with the elastic ring on the front groove, and the other elastic ring is engaged with the rear groove of the square rod. The handle of the instrument is characterized in that the handle is integrally fixed to the handle rod by abutting against the outer surface of the peripheral protrusion of the narrow diameter opening of the rear katsuragane.