JPH08333949A - Switch for door, etc. - Google Patents

Abstract

PURPOSE: To prevent damages and accidents of a door or the like by preventing the door from suddenly closing by wind pressure or the like by virtue of a rolling element being sandwiched between a protruding portion and a pressing body and locking an inserted member when a sudden regressing force is applied to the inserted member. CONSTITUTION: When a door is opened and closed at normal speed, an inserted member 3 makes a smooth advancing and retreating actions with a rolling element 8 in a non- contacting state with the inner circumference 2c of an outer cylinder 2. Even when the door is half closed, it is gradually closes, the inserted member 3 regresses and the door finally closes with the rolling element 8 coming in contact with the lower part of the protruding portion 4. In this case, when the door suddenly regresses towards a mark A by wind pressure or the like, the roller element 8 following the inserted member 3 is resisted and it is sandwiched between the slanted surface 5 of a pressing body 6 and the lower part of the protruding portion 4. Further regression of the inserte member 3 is resisted and the door is retained in a slightly opened condition with the inserted member 3 in a locked state. The inserted member 3 in the locked state is moved to the advancing direction, the lock is unlocked by removing the rolling element 8, the door is slowly moved by making the inserted member 3 capable of advancing and retreating, and the door closes by rolling the rolling element 8.

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 door switch that does not suddenly close due to wind or the like.

[0002]

2. Description of the Related Art As a conventional switch for a door or the like, for example,
There is the one shown in FIG. 5 previously proposed by the applicant (Japanese Patent Application No. 6-288116). The switch 51 such as a door (hereinafter, simply referred to as a switch) is composed of a long outer cylinder 52 and an insertion member 53 that is inserted into the outer cylinder 52 so as to be able to move back and forth. It is designed to be attached to doors and frame members.

The outer cylinder 52 has a substantially flat C-shaped cross section, and a mounting member 54 is rotatably mounted on the base end side 52a. Further, from the tip end side 52b, the insertion member 53
Is inserted freely.

The outer cylinder 5 is provided on the rear end side 53a of the insertion member 53.
A sliding member 56 made of synthetic resin that slides on the inner peripheral surface of 2 is provided, and the insertion member 53 is supported by the sliding member 56 in the outer cylinder 52 so as to be movable back and forth. Further, a mounting bracket 55 is rotatably attached to the distal end side 53b of the insertion member 53.

The switch 51 shown in FIG.
The forward / backward movement inside the outer cylinder 52 of 3 is smoothly performed,
It is designed so that no abnormal noise is generated, and a stopper for maintaining the insertion member 53 when the insertion member 53 has advanced to the maximum is provided with a rear end side 53a of the insertion member 53,
It is provided on the front end side 52b of the outer cylinder 52.

This stopper comprises an engaging plate 62 forming a concave engaging portion 61 and a leaf spring 64 having a projecting piece 63 at its tip, and the projecting piece 63 is engaged when the door or the like is fully opened. Engage with the mating portion 61. As a result, the fully opened state of the door or the like is maintained, but the engaged state can be easily released and closed by pushing the door or the like a little hard.

[0007]

However, if the switch 51 as described above is used in a high floor of a high-rise building such as a condominium, for example, when the door at the entrance is opened, the door is forced by the wind pressure. There is a problem that it often closes. If the doors are closed tightly, loud noise may occur, the doors and frame members may be damaged, and accidents such as pointing may occur.

In view of the above circumstances, it is an object of the present invention to provide a door opening / closing switch that can prevent a sudden closing operation of a door or the like due to wind pressure or the like.

[0009]

The door opening and closing device of the present invention comprises:
(A) A door or the like, which is provided with a long outer cylinder having a substantially flat and substantially C-shaped cross section, and a long insertion member that is inserted into the outer cylinder so as to be able to move back and forth, and is hinged. (B) a protrusion is formed on the inner peripheral surface of the outer cylinder so as to increase the degree of protrusion along the retreat direction of the insertion member; A plate-shaped pressing body having an inclined surface inclined so as to increase the distance from the rear end of the insertion member to the inner peripheral surface on which the protrusion is formed is provided (d) ) A sliding member that slides on the inner circumference of the outer cylinder and supports the insertion member so as to move back and forth is provided at an end of the pressing body opposite to the interior member, and (e) the inclination. A rolling element is loosely fitted between the surface and the inner peripheral surface on which the protruding portion is formed, and (f) the rolling element is rollable by a normal forward / backward movement of the insertion member. But the rapid retracting movement of said insertion member, caught in between the projecting portion and the pressing body, is characterized in that the door or the like, which are configured so as not to close suddenly.

[0010]

In the door switch of the present invention, while the pressing member forming the inclined surface is provided on the insertion member, the protruding portion formed of the inclined thin plate or the like is provided on the inner peripheral surface of the outer cylinder so that the door or the like can be normally opened. In the opening / closing operation, since the insertion / removal operation of the insertion member is performed at a normal speed, even if the rolling element comes into contact with the protruding portion, the insertion member does not roll smoothly to prevent (lock) the movement of the insertion member. However, when a force to close the door suddenly is applied, the insertion member suddenly retracts, making it impossible for the rolling element to follow the movement of the interior member, and the rolling element between the pressing body and the protruding portion. Will be pinched and the closing operation of the door will be blocked. When the insertion member is advanced, the rolling element is easily disengaged and the locked state is released.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The door opening / closing device of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a partially cutaway perspective view showing an embodiment of a switch according to the present invention, FIG. 2 is a side sectional view of the switch shown in FIG. 1, and a view for explaining its operation, and FIG. 1 is a perspective view showing a mounted state of a switch such as a door, and FIG. 4 is a side sectional view of another embodiment of the switch of the present invention.

Referring to FIG. 1, a switch 1 according to the present invention includes an outer cylinder 2, an inner insertion member 3, a protrusion 4, a pressing member 6 forming an inclined surface 5, a sliding member 7, and a rolling member. 8 and. FIG.
The switch 1 shown in (1) has a stopper composed of an engaging plate (not shown) and a leaf spring 64. The structure and operation of this stopper is the same as the switch 5 shown in FIG.
Although the description is omitted because it is similar to that of No. 1, the switch of the present invention is thus a switch including an outer cylinder and an insertion member that is extendably inserted into the outer cylinder. Can be used as appropriate, and other conventionally used functions such as a stopper can be used together.

The outer cylinder 2 is a long member, and has a flat, substantially C-shaped cross section whose lower side is open in the drawing. Further, the receiving member 1 is provided inside the distal end side 2b of the outer cylinder 2.
1 is fitted therein, and the insertion member 3 slides inside thereof. The receiving member 11 is a rectangular cylindrical member made of synthetic resin, and the shape of the hollow inside the rectangular cylindrical member is the insertion member 3.
The cross-sectional shape is similar to that of No. 1 and is slightly large, and the insertion member 3 can be slid smoothly. Further, a circular hole 12 for rotatably attaching the attachment member is formed in the base end portion 2a of the outer cylinder 2. The outer cylinder 2 is preferably made of a metal such as iron, stainless steel, or aluminum by press working in order to maintain sufficient strength and to be manufactured at low cost.

A projecting portion 4 is formed on the inner peripheral surface 2c, which corresponds to the bottom portion of the substantially C-shaped cross section of the outer cylinder 2.

The protrusion 4 is made of an inclined thin plate and is formed so that the plate thickness increases along the direction in which the insertion member 3 retracts (arrow A). The protruding portion 4 is provided on the outer cylinder 2.
It can be prepared separately and fixed by a suitable method conventionally used such as welding, sticking or screwing. However, the protrusion 4 of the present invention is not limited to such a separate thin plate, and may be formed integrally with the outer cylinder by cutting the outer cylinder, or the outer cylinder may be pressed. The protrusion may be formed on the inner peripheral side by processing.

The protruding portion 4 is formed at the front end side 2b of the outer cylinder.
The rolling element 8 is pressed closer to the pressing member 6 so that the insertion member 3 is locked closer to the base end portion 2a at an opening degree of about 5 to 45 degrees.
It is preferable to set it so that it can be sandwiched between and. Similarly, the thickness of the protrusion 4 is also adjusted. In order to facilitate the adjustment and ensure locking, the protrusion 4 is formed to be inclined so as to become thicker toward the base end 2a, but the inclination angle also depends on the speed and force for closing the door D. It is decided as appropriate.

Further, as shown in FIG. 4, the groove 2 which can prevent the rolling element 8 from rolling at an appropriate position on the lower surface of the protrusion 4.
The reliability of locking can also be increased by providing 1, 22. Each block of the protrusion 4 shown in FIG. 4 has an inclined surface that becomes thicker toward the base end 2a, but is flat without inclination and is flat.
It may have a stepped shape that becomes thicker toward the base end portion 2a.

When the door or the like has an opening other than about 5 to 45 degrees, the protruding portion 4 is inserted even if the door D is suddenly closed.
As described above, the base end portion 2 of the outer cylinder 2 is prevented so that the
It is arranged in a portion near a. Then, when the protrusion 4 is provided and the opening degree is about 5 to 45 degrees, the rolling element 8 contacts the lower surface of the protrusion 4, so that the door D cannot be easily closed due to a sudden retreating operation.

The insertion member 3 is also a long member, and has a flat, substantially C-shaped cross section with the upper side opened in the drawing. In addition, the size of the cross section of the insertion member 3 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 is provided on the tip side 2 b of the outer cylinder 2. It is supported by the member 11. Tip side 3b of the insertion member 3
A circular hole (not shown) for rotatably attaching the attachment member is formed in the. Similarly to the outer cylinder 2, the inner insertion member 3 is preferably formed of a metal such as iron, stainless steel, or aluminum by press working in order to maintain sufficient strength and to be manufactured at low cost.

The pressing body 6 extends behind the rear end side 3a of the insertion member 3. As shown in FIG. 2, the pressing body 6 is for forming the inclined surface 5, and is preferably formed integrally with the bottom plate 3c of the insertion member 3. However, as a separate body, it can be fixed to the insertion member 3 by an appropriate method conventionally used such as welding, sticking, and screwing. Further, as shown in FIG. 2, from the end of the inclined surface 5 to the rear end 6 a of the pressing body 6, the pressing body 6 is bent toward the inner peripheral surface 2 c, and is formed at the approximate center of the sliding member 7. The sliding member 7 is connected by being fitted into the flat hole.

Since the sliding member 7 is made of synthetic resin and is slidably supported inside the outer cylinder 2, the shape of the cross section perpendicular to the advancing / retreating direction is slightly similar to the cavity inside the outer cylinder. It is formed small. Further, it is preferable that a groove 7a is provided on the end surface on the inner peripheral surface 2c side so as not to interfere with the protrusion 4 when moving forward and backward.

As shown in FIG. 2, the inclined surface 5 is formed so that the distance L between the inner peripheral surface 2c and the rear end 3a of the insertion member 3 increases rearward.

The rolling element 8 is inserted between the inclined surface 5 and the inner peripheral surface 2c. The diameter thereof smoothly rolls between the inclined surface 5 and the inner peripheral surface 2c or the lower surface of the protruding portion 4 at a normal advancing / retreating speed. It is appropriately determined so that it can be sandwiched between the protrusions 4. Such a rolling element 8 is shown in FIG.
Although a solid cylinder as shown in 1 is preferable, a hollow cylinder or a sphere may be used. In the case of a cylinder, its axis is loosely fitted so as to be perpendicular to the direction in which the insertion member 3 advances and retracts. Further, it is preferable that the axial length thereof is slightly smaller than the width of the cavity inside the outer cylinder 2 from the viewpoint of stable rolling. In the case of a sphere, one to several pieces are loosely fitted. Also,
As the material, synthetic resin is preferable, but stainless steel,
It may be made of metal such as brass. The surface of the cylinder is preferably knurled to prevent slippage.

Next, the operation of the switch of the present invention will be described with reference to FIG. 2A shows a state in which the insertion member 3 can move forward and backward, and FIG. 2B shows a state in which the insertion member 3 is locked and cannot retract (in the direction of arrow A).

As shown in FIG. 2 (a), when the door is opened and closed at a normal speed, the rolling element 8 is in the recessed portion of the pressing body 6, and the inner peripheral surface 2c of the outer cylinder 2 is in contact. Since it is not in contact with, the insertion member 3 can be moved back and forth smoothly. Also,
Even if the door is about to close, when rolling slowly, the rolling element 8 rolls while contacting the lower surface of the protruding portion 4, so that the insertion member 3 is retracted without being locked,
You can close the door completely.

However, as shown in FIG.
When some force such as wind pressure is applied to the door D and the insertion member 3 suddenly retracts in the direction of arrow A, the rolling element 8 cannot follow the movement of the insertion member 3 and the inclined surface 5 of the pressing member 6 is not able to follow.
And the lower surface of the protrusion 4 will be sandwiched. In such a state, the insertion member 3 cannot retract further,
It will be locked. At this time, the door is held in a slightly opened state.

By moving the inserted member 3 in the locked state in the advancing direction (the direction opposite to the arrow A), the rolling element 8 which has been sandwiched can be removed and the locked state can be released. . That is, returning to the state shown in FIG. 2A, the insertion member 3 can be moved forward and backward. Therefore,
This time, the door can be closed completely by slowly moving the door so that the rolling element 8 can roll.

As shown in FIG. 3, the switch 1 of the present invention.
Is mounted between the door D and the frame member F by the mounting brackets 14 and 15, for example. When the door D is opened, the insertion member 3 extends from the tip side 2b of the outer cylinder 2. When the insertion member 3 is in a fully extended state, the stopper is engaged (the protrusion 63 provided on the insertion member 3 is fitted into the engaging portion 61 (see FIG. 5) provided on the outer cylinder 2 and engaged. However, if the insertion member 3 is not pressed with a certain amount of force, the door D will not be closed without shrinking. However, when the door D is in the half-opened state or when the stopper is not applied, the door D tries to be closed rapidly by wind or the like. Further, even if the stopper is applied, if a person leans back, a gust blows, or an unexpectedly large force is applied, the door D will suddenly close. In such a case, in the switch 1 of the present invention, the rolling element 8 is sandwiched between the protruding portion 4 and the pressing body 6 to prevent the insertion member 3 from retreating immediately before closing. This can prevent the door D from hitting the frame member F and making a loud noise or being broken. In addition, accidents such as pointing out can be prevented. When the door D, which is locked and cannot be closed, is opened a little, the rolling element 8 rolls, so the locked state is released, and this time the door D is slowly pushed in the closing direction to fully close it. be able to.

In the embodiment described above, the pressing body 6
Although the sliding member 7 is provided only at the end opposite to the interior member 3, in order to prevent the pressing body 6 from being deformed due to use, the rear end 3a of the insertion member 3 is similar to the sliding member 7. The member may be provided.

[0031]

As described above, according to the door switch of the present invention, when a sudden retreating force that prevents the rolling elements from rolling is applied to the insertion member, the insertion member is locked and the retraction is prevented. To be done. Therefore, the door or the like is not closed suddenly and is held in a slightly opened state, so that damage to the door or the like and an accident can be prevented. Further, even if the locked state is once obtained, the locked state can be easily released.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective explanatory view of an embodiment of a switch according to the present invention.

FIG. 2 is a side sectional view of the switch shown in FIG. 1, illustrating the operation thereof.

FIG. 3 is a perspective view showing a mounted state of a switch such as a door shown in FIG.

FIG. 4 is a side sectional view of another embodiment of the switch of the present invention.

FIG. 5 is a partially cutaway perspective view showing an example of a conventional switch.

[Explanation of symbols]

 1 Switch 2 Outer Cylinder 2c Inner Circumferential Surface 3 Insertion Member 3a Rear End 4 Projection 5 Slope 6 Pressing Body 7 Sliding Member 8 Rolling Body D Door F Frame Member A Retreating Direction

Claims (1)

[Claims] 1. A hinge attachment comprising: (a) a long outer cylinder having a substantially flat and substantially C-shaped cross section, and a long insertion member inserted into the outer cylinder so as to be able to move back and forth. A switch such as a door provided between the opened door and the frame member, and (b) a protrusion on the inner peripheral surface of the outer cylinder, the protrusion of which increases along the backward direction of the insertion member. And (c) a plate-like member having an inclined surface inclined from the rear end of the insertion member toward the rear so as to increase the distance between the insertion member and the inner peripheral surface on which the protrusion is formed. A sliding member that extends a pressing body, and (d) slides on the inner periphery of the outer cylinder and at the end of the pressing body opposite to the interior member, and supports the insertion member so that the insertion member can move back and forth. Is provided
(E) A rolling element is loosely fitted between the inclined surface and the inner peripheral surface on which the protruding portion is formed, and (f) the rolling element is rollable by a normal forward / backward movement of the insertion member. However, in a sudden retreating operation of the insertion member, the switch etc. is configured such that it is sandwiched between the pressing body and the protruding portion and the door or the like is not closed suddenly. .