JPS6137844Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a handle equipped with two pairs of circular saws, a vertical saw and a horizontal saw, on the left and right sides of the lifting/lowering section that is guided up and down by a guide bar, for example. In a cutting machine, a motor case, etc. is applied when the vertical saw and horizontal saw are rotatably and slidably attached to the bracket of the lifting/lowering part so that the angle etc. of the vertical saw and the horizontal saw can be adjusted. The present invention relates to a mounting device.

Conventional devices of this type have fixed the motor case by tightening bolts through slots provided in the axial direction of the bracket that houses the motor case, so when positioning and fixing, it is necessary to hold the motor case with one hand. It was necessary to position the bolt while tightening the bolt with the other hand.

The present invention was devised in view of the above-mentioned problems, with the object of providing a device that can easily and robustly position and fix a motor case with one hand.

The drawings showing the embodiments of the present invention will be described in detail below. In FIGS. 1 to 3, a cylindrical bracket 1 has a cylindrical attached body 2 such as a motor case that can be rotated and slid. A rounded surface 1a that is installed inside and serves as the center of rotation on the outside of the bracket 1.
A washer 3 is formed to have an arcuate cross section with substantially the same curvature as that of the rounded surface 1a.
The knob bolt 4 is inserted into the through hole 5 formed in the bracket 2 with a diameter larger than that of the bolt and screwed onto the object to be attached 2,
A convex portion 7 provided at one end of the washer 3 and a concave portion 6 provided at a portion opposite the convex portion 7 of the attached body 2, or conversely, a convex portion 7 provided on one end of the washer 3 as shown in FIG. The concave portion 6 and the convex portion 7 provided on the opposite side of the concave portion 6 of the attached body 2 are engaged with each other, and the structure of the concave and convex portion will be described in detail with reference to FIGS. The recess 6 is the rounded surface 2 of the object 2 to be attached.
A is provided with two pieces at an appropriate interval in the circumferential direction, that is, in the rotational direction, while the convex part 7 is provided with the washer 3.
Two tongue-like pieces are vertically formed from one end in correspondence with the recess 6, and are engaged with each other and tightened with the knob bolt 4 as described above, so that the shape shown by the arrow in FIG. The recess 6 is formed to have substantially the same shape as the tongue-shaped protrusion 7 so as to be tightly fitted at least in the direction of rotation indicated by a←→a'.

Further, the inner diameter L of the through hole 5 is formed considerably larger than the diameter of the knob bolt 4;
The attached body 2 can be rotated and slid by -.

The insertion hole 8 of the washer 3 through which the knob bolt 4 is inserted can be formed to have the same diameter as the bolt or slightly larger than the diameter of the bolt.

In the above configuration, when the knob bolt 4 is screwed onto the object 2 to be attached, the concave/convex portions 6 and 7 of the washer 3 and the object 2 are engaged with each other, while the knob bolt 4 is inserted into the insertion hole 8. Since it penetrates through the mounting body 2, the mounting body 2 can be mounted in the sliding direction shown by arrow b←→b′ in Fig. 1 and in the rotation direction shown by arrow a←→a′ in Fig. 2. The body 2, washer 3, and knob bolt 4 are integrated, so the knob bolt 4
With bracket 1 slightly loosened,
On the other hand, the attached body 2 can rotate or slide within the range of the effective diameter of the through hole 5 in the bracket 1.

At this time, the washer 3 and the attached body 2 have concave and convex portions 6,
Since it is integrated in a predetermined position and direction by the engagement of 7, the outer rounded surface 1a of the bracket 1
The washer 3, which is formed in a correspondingly arcuate shape, slides relatively smoothly.

As explained above, according to the device for attaching a motor case or the like according to the present invention, in the device for rotatably and slidably attaching the object 2 to be attached, such as a motor case, to the bracket 1, the outer rounded surface 1a of the bracket 1 is attached. The knob bolt 4 is inserted into the through hole 5 of the bracket 1, which has an inner diameter L larger than the diameter of the bolt, by interposing a washer 3 formed in an arc shape with substantially the same curvature as the curvature of the rounded surface 1a. It penetrates and is screwed onto the object to be attached 2, and the concave and convex portions 6 and 7 provided corresponding to the object to be attached 2 and the washer 3 are engaged with each other. Even when the body 2 is rotated or slid, the washer 3 is held in contact with the radiused surface 1a of the bracket 1 and does not move, so the body 2 to be attached can be smoothly rotated and slid, so that it is easy to adjust the position. , a knob bolt 4 screwed onto the object to be attached 2
The washer 3 does not rotate sideways when the knob bolt 4 is tightened, and the washer 3 does not rotate sideways while the knob bolt 4 rotates and slides smoothly as described above. Side 1
Since the contact surface to a does not change and is always in contact with a certain amount, it is possible to firmly fix the attached body 2 without loosening.

Furthermore, it is sufficient to form concave and convex portions 6 and 7 on the end of the washer 3, which is formed into an arc shape approximately matching the curvature of the rounded surface 1a which is the center of rotation on the outside of the bracket 1, and on the mounted body 2. , can be manufactured easily and inexpensively.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional side view showing a mounting device for a motor case etc. according to the present invention, Fig. 2 is a cross-sectional view taken along line - in Fig. 1, Figs. 3A and 3B are a plan view of Fig. 1 and a perspective view of the washer, and Figs. 4A and 4B are a plan view of another embodiment and a perspective view of the washer. 1... bracket, 1a... radius surface, 2...
Mounting body, 3... washer, 4... knob bolt, 5
...through hole, 6...concave portion, 7...convex portion, ...diameter of knob bolt.

Claims (1)

[Scope of utility model registration request] A knob bolt 4 is inserted through a through hole 5 provided in the bracket with a diameter larger than the diameter of the knob bolt 4 on an attached object 2 such as a motor case installed inside the bracket 1, and an arc-shaped washer is attached to the rounded surface 1a on the outside of the bracket. A mounting device for a motor case or the like, characterized in that the mounting body and the washer are provided with concave and convex portions 6 and 7 so as to be engaged with each other.