JPH0884897A - Attaching and detaching device - Google Patents

Abstract

PURPOSE: To remove a filter by a light force without giving impact and vibration to a mounting member of the filter. CONSTITUTION: When a filter 58 is removed, a push face 32 of a cap 28 is strongly depressed from an opening 38 of a casing 36. The flange 30 pushes up a slope face 46A of an elastic projection 46 and bring into contact with a projection provided on a connection body 12 to limit a pushing amount. Then, an elastic claw 26 is spread and overridden on a mobile body 22. When a cover is detached from a mount plate 16, the moving body 22 pressed by the claw 26A slides in detaining groove 20, strikes on a groove wall 20B to restrict the movement. Moreover, when the cover is detached, the claw 26A slides up the slope face 24A of the guide piece 24 while pushing strongly the mobile body 22 to the groove wall 20B and transfers from the top of the guide piece 24 to a cut-piece 18 and is escaped from the detaining groove 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detaching device used for detachably attaching accessory parts and the like to a device body.

[0002]

2. Description of the Related Art As shown in FIGS. 6 to 8, a filter 58 is detachably attached to an exhaust port of a clothes dryer to remove dust in a drying drum.

A cylindrical body 60 for mounting is provided at the center of the filter 58. The cylindrical body 60 is inserted and fixed to a holder 70 provided at the center of a net-like cover 54 that covers the outer surface of the filter 58. The holder 70 is a bottomed cylindrical body, and a grip port 72 for gripping is formed on the outer peripheral portion thereof. Put your finger through this knob 72,
The filter 58 can be held together with the cover 70.

On the other hand, a mounting plate 16 is provided at the exhaust port, and a circular fixed flange 7 provided at the connecting body 74.
6 is screwed.

An annular projection 80 is provided along the outer peripheral surface of the columnar portion 78 of the connecting body 74. An elastic claw 82 formed by cutting in a U-shape with the opening edge of the holder 70 being thin is engaged with the annular projection 80. That is, due to the expansion / contraction function of the elastic claw 82, the holder 70 to which the filter 58 is attached can be attached / detached to / from the columnar portion 86 of the connecting body 74.

However, since the structure for attaching and detaching the cover 70 has a structure in which the filter 58 is removed from the exhaust port of the clothes dryer by strongly pulling the holder from the connecting body 74, the elastic claw 82 has the annular projection 80. When it goes over, the diameter is greatly expanded, and after it goes over, it elastically recovers and strongly hits the outer peripheral surface of the columnar portion 78, giving a large shock and vibration to the filter 58. As a result, dust or the like attached to the filter 58 may be scattered in the clothes dryer.

[0007]

SUMMARY OF THE INVENTION In consideration of the above facts, an object of the present invention is to provide a detaching device which can be detached with a light force without giving shock and vibration to a mounting member such as a filter.

[0008]

According to a first aspect of the present invention, there is provided a desorption device as set forth in claim 1, wherein a tubular casing to which a mounting member is fixed, a cap movably mounted in a hollow of the casing, and a casing are provided. An elastic projection that elastically abuts the cap and restricts axial movement of the cap, an elastic claw provided in the cap and protruding into the hollow of the cap, one end fixed to the mounted member and the other end A shaft inserted into the hollow of the cap, a locking groove formed in the shaft for locking the elastic claw, and slidably mounted in the locking groove so that the elastic claw can ride up. It is characterized by having a moving body.

According to a second aspect of the present invention, in the attachment / detachment device, a guide member for guiding the elastic claw to the outside of the locking groove when the moving body comes into contact with the groove wall of the locking groove at a corner of the moving body. It is characterized by the provision of.

[0010]

In the desorption device according to the first aspect, when the cap is mounted in the hollow of the casing to which the mounting member is fixed, the cap elastically abuts on the elastic protrusion provided on the casing, and the shaft is attached. Movement in the direction is restricted.

Here, when the cap is inserted together with the casing into the connecting body whose one end is fixed to the member to be attached, the elastic claw protruding into the hollow of the cap is locked in the locking groove formed in the connecting body.

As a result, the cap is locked to the connecting body while the movement of the cap is restricted by the casing, so that the casing is fixed to the connecting body via the cap, and as a result,
The mounting member is mounted on the mounted member.

Next, when removing the mounting member from the mounted member, the cap exposed from the casing is pressed toward the connecting body, and the elastic claw of the cap presses the moving body against the groove wall of the locking groove, and further, Riding on a moving body while deforming. Such movement of the cap is allowed by the elastic protrusions and can move in the casing without resistance, so that the casing is not impacted or vibrated.

Next, when the mounting member is gripped and separated from the mounted member, in other words, when the casing is pulled out, the cap moves together with the casing, and the movable body pressed by the elastic claw slides in the locking groove. It moves and hits the groove wall to restrict movement. Further, when the casing is pulled out, the elastic claw moves from the top of the moving body to the outside of the locking groove, and the locked state between the cap and the coupling body is released.

Therefore, the mounting member can be removed from the mounted member without any resistance.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show a desorption device 10 according to this embodiment.

The attachment / detachment device 10 is provided with a connecting body 12, and a circular mounting flange 14 provided at an end portion of the connecting body 12 is fixed to a mounting plate 16 of a clothes dryer with a screw. There is.

At the other end of the connecting body 12, a cut piece 1 formed by cutting the peripheral wall of the cylindrical body from the opening side in the length direction.
8 are provided. The cut pieces 18 are elastically deformable in a direction in which they approach each other, and are thinned toward the tip thereof so that the tapered surface 1 has a tapered tip.
8A is formed.

A locking groove 20 is formed in the center of the cut piece 18 so as to form an annular shape. A ring-shaped moving body 22 is slidably arranged in the locking groove 20. A guide piece 24 having an inclined surface 24A extending outward is provided at a corner of the moving body 22 in a protruding manner. A claw portion 26A of an elastic claw 26, which will be described later, slides on the upper surface 22A of the moving body 22 on the inclined surface 24A of the guide piece 24, and the pressing force at that time causes the moving body 22 to move. The upright surface 22B is strongly pressed against the groove wall 20B of the locking groove 20.

On the other hand, a cylindrical cap 28 is attached to the cut piece 18 so as to be movable in the axial direction. At the opening edge of the cap 28, the annular flange 3
0 is overhanging, and the bottom surface is a push surface 32 for operation. A substantially U-shaped slit 34 is formed on the peripheral wall of the cap 28, and the portion left uncut is the elastic claw 2.
It is supposed to be 6.

The elastic claw 26 has a cantilever shape extending to the push surface 32, and a claw portion 26A projecting into the cap 28 is formed at the tip thereof. The portion of the claw portion 26A facing the opening of the cap 28 is an inclined surface. When the cap 28 is mounted, the tip of the split piece 18 contacts the inclined surface, and then the elastic claw 26 is pushed up along the tapered surface 18A, so that the elastic claw 26 elastically deforms outward. There is.

Further, the cap 28 is formed by the casing 3
6 is to be inserted. This casing 36
Is a cylindrical body with both ends open, and the peripheral wall is a thick portion 40 from the opening 38 to the inside, and a step portion 42 is formed at the end thereof. The flange 30 formed on the opening edge of the cap 28 abuts the step portion 42 so that the cap 28 does not fall out of the casing 36. The inner diameter of the thick portion 40 is smaller than the outer diameter of the cap 28, which allows the cap 28 to move without imparting resistance to the casing 36 to move the opening 38 and the push surface 3.
The two can be flush with each other.

On the other hand, the opening 44 on the other end side of the casing 36
In the vicinity, the outer surface is partially hollowed out, and an elastic protrusion 46 is provided on the inside of this hollowed out portion. The elastic protrusion 46 has an inclined surface 46A that gently inclines. A stopper wall 48 is provided on the inner surface of the casing 36 so as to correspond to the end of the inclined surface 46A. The flange 30 of the cap 28 is held between the stop wall 48 and the inclined surface 46A.

A stepped portion 50 is formed outside the lightened portion, and the claw portion 52 of the holder 56 of the cover 54 is formed.
Is locked. A cylindrical body 60 arranged at the center of the filter 58 is fixed to the holder 56 of the cover 54. Further, the center of the holder 56 is opened, and the cap 28 is opened through the opening 38.
The push surface 32 can be pressed.

Next, the method of use and operation of the desorption device of this embodiment will be described. In order to set the filter 58 to the exhaust port of the clothes dryer, first, the connecting body 12 is attached to the mounting flange 1.
It is previously fixed to the mounting plate 16 via 4. Next, the cylindrical body 60 of the filter 58 is attached to the holder 56 of the cover 54, and the filter 58 is attached to the cover 56.

Here, the claw portion 52 of the holder 56 is hooked on the step portion 50 of the casing 36 to which the cap 28 is attached, and the casing 36 is attached to the cover 54. At this time, the flange 30 of the cap 28 is held between the inclined surface 46A of the elastic protrusion 46 formed on the casing 36 and the stop wall 48, as shown in FIG.

After setting in this manner, the fingers are put on the knobs 64 of the cover 54 to grasp them, and the cut pieces 18 of the connecting body 12 are grasped.
The opening of the cap 28 is pushed in toward. As a result, the claw portion 26A of the elastic claw 26 is guided by the tapered surface 18A of the cut piece 18, and the cap 28 is smoothly inserted into the coupling body 12 while reducing the diameter of the cut piece 18 in the direction in which they slightly approach each other.

Here, when the claw portion 26A passes through the tapered surface 18A of the split piece 18, the claw portion 26A falls into the locking groove 20 and is locked. As a result, the cover 54 to which the filter 58 is attached is fixed to the attachment plate 16. At this time, the flange 30 of the cap 28 has the elastic protrusion 46.
Is elastically held between the inclined surface 46A and the stop wall 48.

Next, when removing the filter 58,
The push surface 32 of the cap 28 is strongly pressed through the opening 38 of the casing 36. As a result, as shown in FIG.
The flange 30 of the cap 28 is the inclined surface 4 of the elastic protrusion 46.
6A is pushed up, and at the same time, it hits the protrusion 66 provided on the coupling body 12 and the pushing amount is limited.

Along with this, the elastic claw 26 expands in diameter, and the claw portion 26A at the tip end rides on the moving body 22 whose movement is stopped by the groove wall 20A of the locking groove 20.

Here, as shown in FIG. 4, when the cover 54 is pulled away from the mounting plate 16, the moving body 22 pressed by the claw portion 26A slides in the locking groove 20 and the groove wall 20B.
Movement is restricted due to Further, when the cover 54 is separated, the claw portion 26A strongly presses the moving body 22 against the groove wall 20B, slides up the inclined surface 24A of the guide piece 24, and moves from the top of the guide piece 24 to the slit piece 18, as shown in FIG. As shown, it comes out of the locking groove 20. At this time, since the flange 30 is locked to the stopper wall 48, the cap 28 does not come out of the casing 36.

By this series of operations, the claw portion 26
A comes out of the locking groove 20, but the cap 28
Movement of the cap 2 is allowed by the elastic protrusion 46.
8 is movably attached to the casing 36, and since the elastic claws 26 including the claw portions 26A only elastically deform, the casing 36 is not vibrated or impacted at the time of attachment / detachment.

As a result, the filter 58 attached to the cover 54 can be removed from the exhaust port of the clothes dryer without any resistance, and dust or the like attached to the filter 58 does not drop into the clothes dryer.

[0034]

Since the present invention has the above-mentioned structure, it can be removed with a light force without giving shock and vibration to the mounting member such as the filter. Therefore, the dust or the like attached to the filter will not be scattered by vibration due to vibration.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a desorption device according to an embodiment.

FIG. 2 is a cross-sectional view showing a state in which the desorption device according to the present embodiment is attached to a clothes dryer.

FIG. 3 is a cross-sectional view showing a series of states in which the filter is removed from the clothes dryer by the desorption device according to this embodiment.

FIG. 4 is a cross-sectional view showing a series of states in which the filter is removed from the clothes dryer by the desorption device according to the present embodiment.

FIG. 5 is a cross-sectional view showing a series of states in which the filter is removed from the clothes dryer by the attachment / detachment device according to the present embodiment.

FIG. 6 is a perspective view showing a conventional attaching / detaching device, a filter and a cover.

FIG. 7 is a cross-sectional view showing a series of states in which a filter is removed from a clothes dryer by a conventional desorption device.

FIG. 8 is a cross-sectional view showing a series of states in which a filter is removed from a clothes dryer by a conventional desorption device.

[Explanation of symbols]

 12 Shaft 20 Locking groove 22 Moving body 24 Guide piece (guide member) 26 Elastic claw 28 Cap 36 Casing 46 Elastic protrusion

Claims (2)

[Claims] 1. A tubular casing to which a mounting member is fixed, a cap movably mounted in the hollow of the casing, and an elastic contact with the cap provided in the casing in the axial direction of the cap. An elastic protrusion that restricts the movement of the cap, an elastic claw provided in the cap and protruding into the hollow of the cap, a shaft body having one end fixed to a mounted member and the other end inserted into the hollow of the cap, An attachment / detachment device comprising: a locking groove formed on a shaft body capable of locking the elastic claw; and a moving body slidably mounted in the locking groove and on which the elastic claw can ride. 2. A guide member for guiding the elastic claw to the outside of the locking groove when the moving body abuts the groove wall of the locking groove to a corner of the moving body. Claim 1
Desorption device according to.