JPS6041888Y2 - Buckle device for electric tightening machine, etc. - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a buckle device for a vacuum cleaner or the like.

Conventionally, there are various types of buckle devices for securing objects such as the main body of a vacuum cleaner.
There are those shown in Fig. and Fig. 2.

That is, recesses 2 are formed at both ends in the longitudinal direction of the lower part of the vacuum cleaner main body 1, which is an object to be placed, and clamps facing the recesses 2 are formed at both longitudinal ends of the upper opening edge of the accessory storage case 36, which is the base. 4 is rotatably provided.

When not cleaning, the vacuum cleaner body 1 is connected and stored in an accessory storage case 3 that stores the hose 5, suction port body, etc. Connection with the case 3 is achieved by engaging the convex portion 7, which is an engaging portion formed at the upper end of the clamp 4, with the concave portion 2.

Thus, a mounting recess 10 surrounded by a receiving surface 8 and a side wall 9 is formed in the accessory storage case 3 for mounting the clamp 4 thereon.

The side wall 9 has a hinge pin 1 fixed to the side of the clamp 4.
1 is held, a hinge hole 12 is formed, and a boss 14 that holds one end of the compression spring 13 is formed protruding from the inner surface of the clamp 4 below the hinge pin 11. A projecting piece 15 that limits the range is formed in a protruding manner.

The compression spring 13 is compressed against the receiving surface 8.

Due to the force of the compression spring 13, the clamp 4 is attached to the hinge pin 11.
The convex part 7 rotates in the direction of engaging with the concave part 2 about the center,
The vacuum cleaner main body 1 and the attached storage case 3 are connected.

Press the lower outer surface of clamp 4 to compress clamp 4
3 is rotated in the direction of compression, the convex part 7 comes off from the concave part 2, and the vacuum cleaner main body 1 and the accessory storage case 3 can be separated.

However, one end of the compression spring 13 that is joined to the receiving surface 8 is movable in the vertical and horizontal directions, and the compression spring 13 may be bent when the clamp 4 is attached, and the boss 14 may be bent over the entire length of the compression spring 13 when the clamp 4 is attached. Because the compression spring 13 is shorter, the compression spring 13 may come off from the boss 14, which makes installation work difficult.Furthermore, even if it is installed normally, the compression spring 13 may come off during operation after installation because the boss 14 is short. Spring 1
There are disadvantages such as one end of the spring 3 may shift and bend, causing malfunction of the clamp 4, and the compression spring 13 may come off the boss 14 and fall off.

In this way, the conventional type has a boss 14 provided on the clamp 4.
Since the length of the compression spring 13 is not inserted over the entire length when the compression spring 13 is attached, there is a drawback that the compression spring 13 may come off from the boss 14 when attaching the clamp 4 to the clamp attachment part 10 or when operating the clamp 4. are doing.

This invention was devised in view of these points, and the purpose is to provide a buckle device for vacuum cleaners, etc., in which the clamp is extremely easy to attach, and the clamp can be rotated smoothly at all times. It is.

An embodiment of this invention will be explained based on FIGS. 3 to 5.

The same parts as those explained in FIG. 1 and FIG. 2 will be explained using the same reference numerals.

The inner surface of the clamp 4 has a convex part 7 which is an engaging part that engages with the concave part 2 of the vacuum cleaner main body 1 as an object to be placed, and a boss 14 which holds one end of a compression spring 13 at the base thereof. A cylindrical shaft 16 is formed to protrude inward, hinge pins 11 serving as hinge portions are protruded from both sides, and a protruding piece 15 is formed at the lower edge.

At both ends of the accessory storage case 3 as a base body, there is a mounting part 1 as a clamp mounting part, which has a receiving surface 8 facing the inner surface of the clamp 4 and a side wall 9 facing both sides of the clamp 4.
0 is formed.

The receiving surface 8 is formed with an elliptical hole 17 that is larger than the cylindrical shaft 16 and smaller than the winding diameter of the compression spring 13 and slightly elongated in the vertical direction. Groove 18 as a freely guiding insertion part
and a hinge hole 12, which is a hinge portion located within these grooves 18, are formed.

Further, a stopper 19 is formed on the lower edge of the mounting portion 10 to abut against the protrusion 15 to restrict the rotation range of the clamp 4.

Therefore, the corresponding distance A between the surface passing through the center of the hinge pin 11 and the surface where the tip of the cylindrical shaft 16 is located, and the facing distance B between the surface passing through the center of the hinge hole 12 and the receiving surface 8 are as follows. determined to be of equal size.

Further, the cylindrical shaft 16 is inserted over substantially the entire length when the compression spring 13 is attached.

In such a configuration, when attaching the clamp 4 to the attachment part 10, slide the clamp 4 from above to below the attachment part 10 as shown in FIG.
and the hinge hole 12.

At this time, by setting the dimensions A and B to be equal, the distal end surface of the cylinder shaft 16 does not coincide with the receiving surface 8 and is not caught, and the hinge pin 11 is also guided in the groove 18, and further,
The compression spring 13 is held by the boss 14 so that it does not fall off and is prevented from being bent by the cylindrical shaft 16, making assembly work extremely easy.

The state shown in FIG. 4 is the state in which the clamp 4 is attached.

Therefore, the vacuum cleaner main body 1 placed on the opening edge of the accessory storage case 3 is placed on the convex portion 7 of the clamp 4 as shown in FIG. 5a.
It is fixed by the elastic engagement action between the and the recess 2.

When releasing the convex portion 7 and the concave portion 2, the clamp 4 is rotated outward, but the compression spring 13 is prevented from bending by the cylindrical shaft 16, and is also prevented from shifting.

Therefore, the vacuum cleaner body 1 can be held in the clamp 4 for a long period of time.
It can be fixed more reliably.

Note that hinge holes 12 may be formed on both sides of the clamp 4 and hinge pins 11 may be provided on the side wall 9 of the accessory storage case 3.

In this case, the grooves 18 may be formed on both sides of the clamp 4.

As mentioned above, this idea includes an upright shaft in the clamp that passes through the compression spring that biases the clamp in the engagement direction to prevent the compression spring from bending or shifting, and connects the clamp to the base body. By positioning the front end surface of the shaft body and the receiving surface formed on the base body to support the compression spring in approximately the same plane, using the plane passing through the hinge part as a reference plane, when attaching the clamp to the mounting part, the shaft body The hinge part can be aligned by sliding the clamp along the receiving surface while preventing the body from getting caught on the receiving surface, and at the same time, the compression spring has a shaft that extends over almost its entire length when installed. Since the compression spring is inserted through the shaft, it is prevented from bending, so the compression spring does not come off the shaft like in the past, making assembly of the clamp extremely easy. Even when the compression spring is compressed by operating the clamp in the releasing direction, the shaft body prevents the compression spring from bending and coming off. When the clamp is pressed when the clamp is released, the tip of the shaft escapes into the hole, so the clamp can be reliably engaged with the object to be placed without interfering with the clamp operation. .

[Brief explanation of drawings]

Fig. 1 shows a conventional example, and is a perspective view showing a vacuum cleaner main body as a mounted object and an accessory storage case as a base, and Fig. 2 is an exploded perspective view showing an enlarged support structure of the clamp. , FIG. 3 is an exploded perspective view showing an enlarged view of the support structure of the clamp, and FIG. 4 is a longitudinal sectional side view showing an enlarged assembly process of the clamp, according to an embodiment of the invention.
FIG. 5 is an enlarged longitudinal sectional side view showing the operation of the clamp. 1...Vacuum cleaner body (mounted object), 3...
・Accessories storage case (base), 4... Clamp, 7... Convex part (engaging part), 8... Receiving surface, 9... Side wall, 10... Mounting part (clamp mounting part), 11... Hinge pin (hinge part), 12111111111111 Hinge hole (hinge part), 13... Compression spring, 16. ... cylinder shaft (shaft body), 17 ... hole, 18 ... groove (
insert).

Claims (1)

[Scope of utility model registration request] A clamp is provided at the end of the base body that supports the placed object, and a retaining portion that engages with the placed object is provided on the inner surface of the clamp, and a shaft body that holds a compression spring and projects inwardly, and is provided on both sides. A hinge portion is provided, and the end of the base body has a hole larger than the tip diameter of the shaft body, and a receiving surface that presses the end of the compression spring around the hole, and side walls facing on both sides of the clamp. a clamp mounting portion having a clamp mounting portion having a clamp mounting portion, a hinge portion elastically connected to the hinge portion at a position where the shaft body and the hole face each other are formed on these side walls, and a plane passing through the center of the hinge portion is a reference point. The length of the shaft body is set so that the receiving surface and the distal end surface of the shaft body are located in approximately the same plane.The clamp is inserted through the insertion part of the clamp mounting part, and the both hinges are inserted. A buckle device for a vacuum cleaner, etc., characterized in that the two are connected together.