JPS6311362Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a clamping device, for example, a clamping device that removably connects an electric side case and a dust collection side case like in a vacuum cleaner. be.

[Prior Art] Conventionally, for example, a clamp device used in a vacuum cleaner uses a separate spring to bias the clamp member, or
Some clamp devices have a spring portion integrally formed therein.

[Problems to be Solved by the Invention] In the former type, it takes time and effort to assemble the clamp device into the main body of the vacuum cleaner, and there is also the risk that the spring may come off. Furthermore, if the clamp device is biased at only one location using a spring or the like, there is a problem in that the operating force varies depending on the position at which the clamp device is pressed by the finger.

The latter type not only has a bad space factor because it requires a considerable amount of space on the dust collection side case to which the clamp device is attached, but also has a bad space factor, and the spring part is not placed in a place other than the clamp. If they come into contact with each other, force will be applied to the spring part, causing it to deform.
There are problems such as easy damage.

[Means for Solving the Problems] This invention includes a clamp member having an engaging portion that removably engages with a receiving portion of a combined body, a clamp member that rotatably supports the clamp member, and a clamp member that rotatably supports the clamp member. The clamp body is made into a unit by assembling a support member integrally molded with a spring part that comes into contact with the clamp body and urges the engaging part in the direction of contacting the receiving part, and this clamp body is connected via the support member of the clamp body. It is fixed by a fixing means in a recess provided on the body for attaching the clamp body, making the assembly work easier, and has a better space factor and durability than conventional ones. This is what I did.

[Embodiment of the invention] An embodiment of the invention will be described in detail based on FIGS. 1 to 4, taking as an example a case where the invention is used in a vacuum cleaner.

Reference numeral 1 denotes an electric side case as a combined body, in which an electric blower 2 and a cord reel 3 are built-in.

Reference numeral 4 denotes a dust collection side case as a body to be joined, and a recess 5 for mounting a clamp body 10 is opened in the upper surface toward the electric side case 1, and a wide width A convex wall 6 is protruded, and a narrow rib portion 7 is provided at the center of the convex wall 6, with which the edge 12 of the clamp member 11 of the clamp body 10 comes into contact.
has been erected. A front edge portion 8 extends toward the electric side case 1 at the lower part of the convex wall 6, and a claw portion 9 is formed at the end of this front edge portion 8.

The clamp body 10 includes a clamp member 11 and a support member 13 that is disposed in the longitudinal direction of the back surface of the clamp member 11 and rotatably supports the clamp member 11.
It is composed of.

The clamp member 11 has a shaft portion 1 at both ends in the longitudinal direction.
4 and 14 are protruded, and an edge 12 extends downward in the width direction of one end (four directions of the dust collecting side case), and an edge 12 is formed on the electric side case 1 at the other end. The engaging portion 1 is removably connected to the receiving portion 15.
6 is formed.

The support member 13 is formed of a flexible member, and the shaft portions 14 of the clamp member 11 are pivotally supported at both ends in the longitudinal direction, and a bearing portion 17 rotatably supports the clamp member 11. 17 is formed. A locking portion 18 that can engage with a claw portion 9 formed on the front edge 8 of the dust collection side case 4 is formed at one end of the support member 13 in the width direction, and a locking portion 18 that can engage with a claw portion 9 formed on the front edge 8 of the dust collection side case 4 is formed at the other end. There are two plate-shaped spring parts 19, 1 at positions that roughly divide the length in the longitudinal direction into three parts in the four directions of the case.
9 is integrally molded at a position where it can come into contact with the clamp member 11.

Therefore, at the time of assembly, the clamp body 10 is assembled into a unit with the shaft parts 14, 14 of the clamp member 11 supported by the bearing parts 17, 17 of the support member 13, and then inserted into the recess 5 of the dust collection side case 4. It is fixed to the convex wall 6 of.

If the spring parts 19, 19 are formed at a plurality of locations, a uniform operating force can be obtained regardless of the position where the clamp member 11 is pressed with a finger, and the spring parts 19, 19
Since the stress applied to the material is also dispersed, damage and deformation are less likely to occur, and durability is improved.

Moreover, if the spring part 19 is formed so that the length in the thickness direction and the width direction, or the length in either one direction, is gradually decreased from the root part to the tip part, the cross-sectional area can be gradually decreased. Since stress can be dispersed throughout the spring portion 19 without being concentrated on the root portion, deformation and breakage are less likely to occur, further improving durability.

20 is a rear wheel, 21 is a caster, 22 is a dust collection chamber, 23 is a handle, and 24 is an operator's finger.

The means for fixing the clamp body 10 is the dust collecting side case 4.
It is composed of a screw hole 25 and a screw 26 provided in the convex wall 6 of the recess 5, and the clamp body 1
0 is a screw 26 inserted into the screw hole 25 through the support member 13.
It is fixed by screwing it in. 27 is a dust collector.

Further, the electric power side case 1 is provided with a locking piece 28, and the dust collecting side case 4 is provided with a protrusion 29 that engages with this locking piece 28. Through engagement and the clamp body 10, the dust collection side case 4 and the electric side case 1 are removably connected.

Since the configuration is as described above, the clamp body 10
In order to attach the clamp body 10 to the dust collection side case 4, first, the shaft portions 14, 14 of the clamp member 11 are pivotally supported on the bearing portions 17, 17 of the support member 13 to form the clamp body 10 into a unit. This unitized clamp body 1
0 into the recess 5 of the dust collection side case 4,
It is positioned in a screw hole 25 provided in the convex wall 6 and fixed with a screw 26 from the support member 13 side. In the state where the clamp body 10 is fixed to the convex wall 6 in this way, the locking portion 18 of the support member 13 is connected to the claw portion 9.
The spring portion 19 is in contact with the edge 12 of the clamp member 11.

Next, to explain its operation, first, when connecting, the protrusion 29 of the dust collection side case 4 is engaged with the locking piece 28 of the electric side case 1, and the dust collection side case 4 is moved to the first position around this engagement point. When rotated clockwise in the figure, the engaging portion 16 of the clamp member 11
crosses over the top of the receiving part 15 of the electric side case 1 and engages with the receiving part 15, and the dust collection side case 4 and the electric side case 1 are connected. In this state, as shown in FIG. 3, the spring portions 19, 19 of the support member 13 of the clamp body 10 are in contact with the edge 12 of the clamp member 11 and bias it upward, so that they are not engaged. The mating portion 16 engages with the receiving portion 15 of the electric side case 1.

Next, when releasing the clamp body 10 and removing the dust collection side case 4 from the electric side case 1, as shown in FIG. Then, clamp member 1
1 rotates counterclockwise about the shaft portion 14, the engaging portion 16 is disengaged from the receiving portion 15 of the electric side case 1. At this time, the spring parts 19, 19 elastically bend downward and approach the convex wall 6 of the dust collection side case 4, but the edge 12 of the clamp member 11
The spring portions 19,1
9 and the convex wall 6 do not come into contact with each other, and the spring portion 1
Abnormal deformation of Nos. 9 and 19 can also be prevented.

In this way, if the engagement part 16 of the clamp member 11 and the receiving part 15 of the electric side case 1 are disengaged,
The dust collection side case 4 can be removed from the electric side case 1.

[Effects of the invention] As described above, this invention includes a clamp member formed with an engaging portion that removably engages with a receiving portion of a combined body, a clamp member that rotatably supports the clamp member, and a clamp member that rotatably supports the clamp member. The clamp body is made into a unit by assembling a supporting member having an integrally molded spring portion that comes into contact with the member and urges the engaging portion in the direction of engaging the receiving portion.
This unitized clamp body is fixed to the recess of the object to be joined using a fixing means, so that
The work of assembling the clamp body into the object to be joined is very easy and has good workability, and the clamp body is smaller than the conventional one, and the space factor is improved.

Furthermore, since the clamp member is simply rotatably supported by the support member, the assembly work for forming the clamp body into a unit is simple, and the structure of the clamp body is also simple. In addition, since the spring portion is integrally molded with the support member, it is not only easy to manufacture, but also the clamp body is smaller than the conventional clamp body and the space factor is improved. Since the spring part contacts and biases the clamp member, the rotation range of the clamp member is the range in which the receiving part and the engaging part engage and disengage, so the range in which the spring part curves is also small. Therefore, the spring portion is not deformed or damaged and has excellent durability.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention: Fig. 1 is a partially cutaway side view, Fig. 2 is a partially cutaway plan view of the clamp body, Fig. 3 is a sectional view of the main part, and Fig. 4 is the clamp body. FIG. 3 is a cross-sectional view of a main part showing a state in which the coupling is released. DESCRIPTION OF SYMBOLS 1... Combined body, 4... Connected body, 5... Recessed part, 10...
Clamp body, 11... Clamp member, 13... Support member, 15... Receiving part, 16... Engaging part, 19... Spring part.

Claims (1)

[Claims for Utility Model Registration] (1) A combined body in which a receiving portion is formed, which is removably connected to this combined body, and
A body to be coupled having a concave portion into which the clamp body is mounted; a clamp member having an engaging portion that is removably coupled to the receiving portion; a clamp body formed into a unit by assembling a supporting member integrally molded with a spring portion that abuts and biases the engaging portion in the direction of engaging the engaging portion with the receiving portion; A clamping device, characterized in that the clamping device is fixed to the recessed portion by a fixing means via the supporting member. (2) The clamping device according to claim 1 of the utility model registration, characterized in that the spring portion has a cross-sectional area that gradually decreases from the base to the tip.