JPH08294901A - Handle for cutter - Google Patents

Abstract

PURPOSE: To improve the working accuracy so that a handle may scarcely fluctuate by sandwiching both right and left outer walls of the recess of the case body of a cutter between right and left inner walls of the cap of the rear part of a handle, and pushing the cap to a protrusion by set screws disposed at the upper and lower parts of the cap. CONSTITUTION: A handle 14 comprises a handle part extended in an arch state in the longitudinal direction of the case body 13 of a cutter and a cap 15 provided integrally with the rear part of the handle part and split to right and left half pieces. The protrusion 13a of the body 13 of the cutter is sandwiched between the right and left sides of the cap 15 of the rear part of the handle 14, and the right and left inner walls of the cap 15 are brought into contact with the right and left outer walls of the protrusion 13a. And, since the upper and lower parts of the cap 15 are clamped by set screws 17, the connecting force of the handle 14 and the body 13 is increased that much, and hence the fixing strength of the handle 14 to the body 13 is enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle for a cutting machine such as a jigsaw.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a case body 1 of a cutting machine such as a jigsaw is provided with a handle 2 extending in an arch shape in the front-rear direction. The handle 2 is divided into two right and left halves 2a and 2b as a whole, and is assembled so as to sandwich bosses 3 and 4 protruding from the front and rear of the case body 1, respectively, and a set screw 5 is provided on both halves and the boss 3. It is inserted so as to cross 4 and. As a result, both halves 2a and 2b are joined and fixed to the case body 1. Further, a cap 6 is covered on the rear portion of the handle 2 so as to conceal the set screw 5, the boss 4, and the like.

[0003]

However, the above-mentioned conventional mounting structure of the handle 2 is merely that the bosses 3 and 4 projecting from the case main body 1 are fastened by the setscrews 5 at the front and rear of the handle 2. Since it is not present, it is fragile, and the handle 2 is apt to rattle, which may impair the processing accuracy.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a handle of a cutting machine capable of solving such a problem.

[0005]

In order to achieve the above object, the present invention provides a handle 14 extending in a front-rear direction of a case main body 13 of a cutting machine, and a cap integrally provided on a rear portion of the handle 14. Part 15 and is divided into two left and right half pieces 14a and 14b as a whole, and the cap portion 15 is covered by the convex portion 13a protruding from the rear end of the case body 13, and the inner wall surfaces 23 on the left and right sides thereof are convex portions. Thirteen
The two half pieces 1 so as to contact the outer wall surfaces 16 on the left and right of a.
4a and 14b are combined to form the two halves 14a and 14b.
The structure of the handle of the cutting machine, in which set screws 17 for connecting the above and fixing to the case main body 13 are respectively provided at the front portion of the handle 14 and at the upper and lower portions near the convex portion 13a with the convex portion sandwiched therebetween. In addition, in the handle 14 of the cutting machine, the convex portion 13a and the cap portion 1 are used.
5 is provided with a projection 21 and a hole 22 for connecting the two.

[0006]

Since the cap portion 15 at the rear of the handle 14 sandwiches the convex portions 13a of the case body 13 of the cutting machine from both left and right sides, the left and right inner wall surfaces 23 of the cap portion 15 contact the left and right outer wall surfaces of the convex portion 13a. Therefore, the contact area between the handle 14 and the case body 13 is increased, and the fixing strength of the handle 14 is increased. Further, since the upper and lower parts sandwiching the convex portion 13 are tightened by the set screw 17, the fixing strength of the handle is further increased. Therefore, the handle 14 is less likely to rattle, and the processing accuracy is improved.

When the projection 13a and the cap portion 15 are provided with a projection 21 and a hole 22 for connecting the projection 13a and the cap portion 15 to each other, the handle 14 is engaged by the projection 21 and the hole 22.
Will further increase the fixing strength.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, this cutting machine decelerates the rotation of the motor 7 by gears 8 and 9, and inserts an eccentric pin 10 attached to the gear 9 into a hole 11a of a vertical axis 11 so that the motor is driven. The rotary motion of No. 7 is converted into the vertical motion of the vertical axis 11, and the blade 12 mounted below the vertical axis 11 is reciprocated. A portion from the motor 7 to the transmission parts such as the gears 8 and 9 is covered with a case body 13, and a substantially U-shaped handle 14 extending in the front-rear direction is attached to the case body 13.

The handle 14 is the case body 13 of the cutting machine.
It has a handle extending in an arch shape in the front-rear direction and a cap portion 15 integrally provided on the rear portion of the handle, and is divided into two left and right half pieces 14a and 14b as a whole.

The cap portion 15 covers the convex portion 13a protruding from the rear end of the case body 13, and the closed rear end thereof forms the rear end of the cutting machine and the opening thereof faces the front of the cutting machine. is open. The left and right inner wall surfaces 23 of the cap portion 15 are formed as curved surfaces applied to the left and right of the convex portion 13a.

The convex portion 13a is a portion that covers the rear end of the shaft and the bearing of the motor 7 in the case body 13, and as shown in FIGS. 4 and 5, projects from the rear end of the case body 13 in a block shape. The left and right outer wall surfaces 16 are curved surfaces that can come into close contact with the inner wall surface 23 of the cap portion 15.

Further, as shown in FIG. 6, elongated cylindrical bosses 18a and 18b which are coupled to each other are provided at opposing portions of the two half pieces 14a and 14b in the cap portion 15. As shown in FIGS. 1 and 4, the bosses 18a on the side of the cap portion 15 are provided at two upper and lower positions with the inner wall surface 23 interposed therebetween. Bosses 20 for sandwiching a bracket 19 projecting upward from the front portion of the case body 13 are provided at opposing positions of the two half pieces 14a and 14b in the front portion of the handle 14.

Two halves 14a, 1 of the handle 14
4b is a convex portion 13a protruding from the rear end of the case body 13.
The cap portion 15 is covered with the boss 18a and 18b, and the boss 20 is combined so as to sandwich the bracket 19 projecting from the front end of the case body 13. As shown in FIG. , 18b,
It is fastened with a set screw 17 that is screwed to 20. The set screw 17 is for connecting the two halves 14a and 14b and fixing them to the case main body 13. The set screw 17 is provided on the front portion of the handle 14 where the boss 20 is provided and the boss 18a of the cap portion 15. , 18b are provided at two locations respectively. In this embodiment, it is also provided in the middle portion of the handle 14.

In this way, the cap portion 15 at the rear portion of the handle 14 sandwiches the convex portions 13a of the case body 13 of the cutting machine from both left and right sides, and the left and right inner wall surfaces 23 of the cap portion 15 are formed.
Is in contact with the left and right outer wall surfaces 16 of the convex portion 13a, and the upper and lower portions of the cap portion 15 are tightened with the setscrew 17, so that the coupling force between the handle 14 and the case body 13 is increased accordingly, and the case of the handle 14 is The fixing strength with respect to the main body 13 is increased.

Further, as shown in FIGS. 4 and 5, the projection 13a and the cap portion 15 are provided with a projection 21 and a hole 22 for connecting them. The number of pairs of the protrusion 21 and the hole 22 is not limited to two on the left and right, but may be more or less. In the embodiment, the protrusion 2
1 is provided on the curved surface 16 of the convex portion 13a and the hole 22 is provided on the curved inner surface of the cap portion 15.
1 may be provided in the cap portion 15 and the hole 22 may be provided in the convex portion 13a.

As described above, when the protrusion 21 and the hole 22 are provided, the fixing strength of the handle 14 to the case body 13 is further increased.

[0017]

According to the present invention, the left and right inner wall surfaces of the cap portion at the rear of the handle sandwich the left and right outer wall surfaces of the convex portion of the case body of the cutting machine from both sides, and the set screws arranged above and below the cap portion are capped. Since the part is pressed against the convex part, the fixing strength of the handle to the case body is increased,
The handle becomes less rattling and the processing accuracy is improved. Also, since the handle and the cap are integrated,
As a result, the number of parts is reduced, and the handle can be assembled easily and quickly.

Further, in the present invention, when the projection and the cap are provided with the projection and the hole for connecting the both, the fixing strength of the handle can be further enhanced by the engagement of the projection and the hole. Become.

[Brief description of drawings]

FIG. 1 is a side view showing a right half of a cutting machine including a handle according to the present invention.

FIG. 2 is a plan view of the cutting machine.

FIG. 3 is a rear view of the cutting machine.

FIG. 4 is an exploded side view showing a main part of the present invention.

5 is a view taken along line VV in FIG.

6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a side view showing the right half of a conventional cutting machine.

[Explanation of symbols]

 13 ... Case body 13a ... Convex part 14 ... Handles 14a, 14b ... Half piece 15 ... Cap part 16 ... Outer wall surface 17 ... Set screw 21 ... Protrusion 22 ... Hole 23 ... Inner wall surface

Claims (2)

[Claims] 1. A handle main body of a cutting machine, which has an arch-shaped handle extending in the front-rear direction and a cap portion integrally provided on the rear portion of the handle, and is divided into two left and right half pieces as a whole, The two halves are combined so that the cap portion covers the convex portion projecting from the rear end of the case body, and the left and right inner wall surfaces of the cap portion contact the left and right outer wall surfaces of the convex portion. A handle for a cutting machine, wherein a set screw for fixing to a case body is provided at a front portion of the handle and at an upper portion and a lower portion, respectively, in the vicinity of the convex portion and sandwiching the convex portion therebetween. 2. The handle of the cutting machine according to claim 1, wherein the convex portion and the cap portion are provided with a projection and a hole for connecting the both.