JP3192891B2 - Door switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch such as a door. More specifically, the present invention relates to a switch such as a door which can be securely held at a position where a double door window or door is completely opened and which can be easily opened and closed.

[0002]

2. Description of the Related Art A conventional switch such as a door is shown in FIG. The switch 51 includes a long outer cylinder 52 and an insertion member 53 which is inserted into the outer cylinder 52 so as to be extendable and contractible.
And the window W.

The outer cylinder 52 has a substantially flat C-shaped cross section, as shown in FIG.
Extends straight in the longitudinal direction, and the upper edge 61a of the side wall 61 extends slightly inward. One end (base end) 62 of the outer cylinder 52 is provided with a hole 63 for rotatably mounting the mounting bracket 54, and the other end (tip) 66 is provided with an insertion member 53. In order to slidably insert, a receiving member 65 made of resin is provided which forms a cavity 65 a substantially equal to the outer peripheral shape of the insertion member 53. The insertion member 53 is inserted from the tip end 66 side of the outer cylinder 52 so as to be able to expand and contract.

An engaging portion 67 for engaging a leaf spring 71 of the insertion member 53 shown in FIG. 7 is provided near the tip end portion 66, and the insertion member 53 is fully extended. In this state, the leaf spring 71 is engaged with the engaging portion 67 and holds that state, and the window W and the like are kept open.

[0005] As shown in FIG.
It is a long member of the same size as the outer cylinder 52, and has a cross-sectional shape and dimensions that can be slidably inserted into the outer cylinder 52. A sliding member 73 made of synthetic resin is fitted on a base 72, which is an end of the insertion member 53 on the side to be inserted into the outer cylinder 52, and is fitted on the other end (tip) 74. A hole 75 for rotatably mounting the mounting bracket 55 is provided. The outer peripheral shape of the sliding member 73 is similar to the inner peripheral shape of the outer cylinder 52 and is somewhat smaller, so that when the inner insertion member 53 slides inside the outer cylinder 52, it can slide smoothly. It has become.

A leaf spring 71 is provided near the end on which the sliding member 73 is provided. Leaf spring 7
1 has a curved portion 71a bent in an arc shape, and is fitted and engaged with the engaging portion 67 of the outer cylinder 52.

[0007]

The above-described switch 51 has the following features.
The flat plate is formed into a predetermined shape by pressing off and pressing. In FIG.
1b is not microscopically uniform but has fine irregularities. And, in the above-mentioned switch 51, since the fractured surface 61b just slides with the leaf spring 71, the sliding surface is scratched by the unevenness, and eventually it becomes difficult to move smoothly. There was a case where abnormal sound was generated.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a switch such as a door which slides smoothly and does not generate an abnormal sound when opened and closed.

[0009]

A switch such as a door according to the present invention comprises:
(A) an elongate outer cylinder having a substantially flat C-shaped cross section; and (b) an elongate outer cylinder inserted into the outer cylinder so as to be extendable and contractable from a distal end side which is one end of the outer cylinder. An insertion member, (c) an engagement plate forming a concave engagement portion provided on a bottom surface near the tip of the outer cylinder, and (d) an insertion side of the insertion member into the outer cylinder. provided near the base end portion is an end portion, Ri Do a leaf spring having a projecting piece for engaging with the engagement portion at its distal end, said protrusion previous
Slightly separated from the bottom surface of the outer cylinder,
The thickness of the plate allows the protrusion to engage the engaging portion firmly.
It is characterized by having a thickness of the order of magnitude .

[0010]

In the switch such as a door of the present invention, a projection attached to the tip of a leaf spring provided in the insertion member is provided in a concave engagement portion formed in an engagement plate provided in the outer cylinder. By inserting, the insertion member is maintained in an extended state. The projecting piece until it engages, to move in a state apart from the slightly bottom of the outer cylinder, the movement is performed smoothly, abnormal sound does not occur. Further, the protruding piece and the engagement plate can be easily processed smoothly, and the engagement between them can be performed smoothly.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a switch such as a door according to the present invention.

FIG. 1 is a perspective sectional explanatory view of an embodiment of a switch such as a door of the present invention, FIG. 2 is a side sectional view of the switch of FIG. 1, FIG. 3 is a plan view of the switch of FIG. FIG. 2 is a perspective view showing a mounted state of the switch of FIG. 1.

Referring to FIG. 4, a switch 1 of the present invention comprises an outer cylinder 2 and an insertion member 3 slidably inserted into the outer cylinder 2.
Consists of The outer cylinder 2 is attached to a window frame F or the like by an attachment member 4, and the insertion member 3 is attached to a window W or the like by an attachment member 5. When the window W is opened, the insertion member 3
Is extended from the distal end portion 2a side of the outer cylinder 2, and when the insertion member 3 is fully extended, the protrusion 11 provided on the insertion member 3
Are fitted into and engaged with the engaging portions 12 provided on the outer cylinder 2 (see FIG. 1). For this reason, the insertion member 3 does not shrink unless the window is pushed in a direction to close the window with a certain force.

FIG. 1 is a perspective view including a cross section of the outer cylinder 2 cut in half in the longitudinal direction. As shown in FIG. 1, the outer cylinder 2 is a long member, and has a flat, substantially C-shaped cross section with an open upper side in the drawing. This abbreviation C
The shape of the cavity inside the V-shaped cross section is similar to and slightly larger than the sliding member 13 attached to the base end 3 c of the insertion member 3 on the side of the insertion side into the outer cylinder 2, The sliding member 13 can slide smoothly. A receiving member 14 is fitted to the distal end 2 a of the outer cylinder 2. The receiving member 14 is a square tubular member made of synthetic resin, and the shape of the cavity inside the square tubular shape is similar to the cross-sectional shape of the main body 3a of the insertion member 3, and is slightly larger. The body 3a of the member 3 can be slid smoothly. Further, a circular hole 15 for rotatably mounting the mounting member 4 is formed in the base end portion 2b of the outer cylinder 2. Outer cylinder 2
Is preferably formed from a metal such as iron, stainless steel, or aluminum by pressing to maintain sufficient strength and to be manufactured at low cost.

An engagement plate 17 for forming a concave engagement portion 12 is attached to the bottom surface 2c of the outer cylinder 2 by caulking rivets 18, 19 along a longitudinal center line. ing. This attachment can be made by other methods such as welding or bonding.

The insertion member 3 is composed of a main body 3a having a flat, substantially C-shaped cross section whose lower side is open in FIG. 1, and a sliding member 13 attached to its base end 3c. The sliding member 13 is made of synthetic resin, and is slidably supported inside the outer cylinder 2. The opening 3 on the lower side of the main body 3a.
An engagement plate 17 is provided along b. Further, the size of the cross section of the main body 3a is formed to be slightly smaller than the cavity inside the outer cylinder 2 so as not to come into contact with the outer cylinder 2, and the receiving member 14 provided at the distal end portion 2a of the outer cylinder 2 is formed. Supported by A circular hole 16 for rotatably mounting the mounting member 5 is formed in the distal end side of the insertion member 3. Similarly to the outer cylinder 2, the insertion member 3 is preferably formed by pressing with a metal such as iron, stainless steel, or aluminum while maintaining sufficient strength and is preferably manufactured at low cost.

A leaf spring 20 is attached to the inside of the main body 3a of the insertion member 3 by caulking a rivet 21 downward in FIG. This attachment can also be performed by other methods such as welding and bonding. Also, leaf spring 2
0, a protruding piece 11 is attached downward, and one end 17a of an engagement plate 17 provided on the outer cylinder 2 is used as a surface 20a of the leaf spring 20 (a face on which the protruding piece 11 is provided). ) Is pressed to release the urging, and the protruding piece 11 is inserted into the engaging portion 12. Then, protruding pieces 11, in order to reduce the friction Kosuoto, it is moved in a state of slightly away from the bottom surface 2c of the outer tube 2.

It is preferable that the leaf spring 20 is made of stainless steel, cast material, synthetic resin or the like from the viewpoint of abrasion resistance.

Further, it is preferable that a rectangular plate-like stopper 23 is attached to the upper side of the back surface of the main body 3a of the insertion member 3, and a step 22 is provided on the upper side of the outer cylinder 2. The stopper 23 is caught on the step 22 and prevents the insertion member 3 from coming off.

FIG. 2A is a longitudinal sectional view of the insertion member 3, and FIG. 2B is a longitudinal sectional view of the outer cylinder 2. In FIG. 2, the end 1 of the engagement plate 17 is shown.
It is preferable that 7a be slightly rounded.
Thereby, the leaf spring 20 and the engagement plate 17 slide more smoothly, and the protruding piece 11 can be introduced into the engagement portion 12. Further, for the same reason, the projection 1
It is preferable that the first side surface 11a is also rounded.

FIG. 3A is a view of the insertion member 3 of FIG. 1 as viewed from below, and FIG. 3B is a view of the outer cylinder 2 of FIG. 1 as viewed from above. 3, the leaf spring 20 and the engagement plate 17 are provided along the longitudinal center lines of the inner insertion member 3 and the outer cylinder, respectively.

The door switch 1 of the present invention can be attached to the lower surface of the window frame F or to the upper surface of a window frame or frame as shown in FIG.

[0023]

As described above, in the switch such as a door according to the present invention, the projecting piece at the tip of the leaf spring attached to the insertion member is fitted into the concave engagement portion provided on the bottom surface of the outer cylinder. And engage. The hole-shaped engagement portion is provided on an engagement plate attached to the bottom surface of the outer cylinder, and the projection piece firmly engages with the engagement portion depending on the thickness of the engagement plate. the bottom does not generate an abnormal sound due to friction at the sliding Shinano Ino.

[Brief description of the drawings]

FIG. 1 is a perspective sectional explanatory view showing an embodiment of a switch such as a door of the present invention.

FIG. 2 is an explanatory longitudinal sectional view of the switch shown in FIG. 1;

FIG. 3 is a plan view of the switch of FIG. 1;

FIG. 4 is an explanatory view of a use state of the switch of FIG. 1;

FIG. 5 is an explanatory view of a use state of a conventional switch.

6 is an explanatory perspective view of an outer cylinder of the switch of FIG. 5;

FIG. 7 is an explanatory perspective view of an insertion member of the switch of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switch 2 Outer cylinder 2a Tip part 2c Bottom surface 3 Insertion member 3c Base end part 4, 5 Mounting member 11 Projection piece 12 Engagement part 17 Engagement plate 20 Leaf spring

Claims (1)

(57) [Claims] (A) an elongated outer cylinder having a substantially flat C-shaped cross section; and (b) a telescopically inserted into the outer cylinder from a tip end side, which is one end of the outer cylinder. (C) an engagement plate forming a concave engagement portion provided on the bottom surface near the distal end of the outer cylinder; and (d) an outer cylinder of the inner insertion member. provided at the proximal end near an end portion of the insertion side of the bottom surface of the engagement projecting pieces for engaging the engagement portion Ri Do a leaf spring having at its front end, said protrusion is said barrel And the thickness of the engagement plate is such that
A switch, such as a door, characterized in that it is thick enough to engage with a light .