JPH10331517A - Opening and closing adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a door from being closed suddenly by providing a plug energized by a spring in an air damper type opening and closing adjusting device, whereby when a gust or the like is applied, an exhaust passage is closed by the plug, and air is compressed by a piston. SOLUTION: An opening and closing adjusting device 1 is provided between an opening and closing member of a door, a window, a top cover or the like and a skeleton to adjust the opening and closing speed. In the case of normal door closing operation, when a piston 5 is pressed at a designated speed, air in a cylinder is discharged through a gap G and a groove 10a from an exhaust port 7a, so that the door is closed quietly. When the door is quickly closed by unexpected external force of a gust, a child or the like, the piston 5 is quickly moved to suddenly increase the air pressure in the cylinder, so that a plug 9 is pressed to a terminal member 7 against the force of a spring 8. Then a groove 10a is closed so the the door can be prevented from being suddenly closed by the air pressure in the cylinder. Thus, the door or the like can be surely prevented from being suddenly closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a switching regulator. More specifically, this is an opening / closing adjuster for holding a door, a window, a canopy, etc. in a predetermined open position. The door, etc., closes suddenly even when an unexpected external force such as a gust acts on the door, etc. The present invention relates to an opening / closing adjuster capable of reliably preventing the opening / closing.

[0002]

2. Description of the Related Art Conventionally, there has been an open / close regulator of a type in which an insertion member is slidably inserted into an outer cylinder in order to hold a door or the like at a predetermined open position. Such an opening / closing adjuster is used by rotatably connecting a rear end portion of an insertion member and a rear end of an outer cylinder to a door and a door frame, respectively.

[0003] The opening / closing adjuster is provided with a stopper near the distal end outlet inside the outer cylinder, and a locking piece is provided at a position on the distal end side of the insertion member. Therefore, when the door is opened, the insertion member is pulled out from the outer cylinder, and then, when the door is at the predetermined open position, the locking piece of the insertion member is locked by the stopper of the outer cylinder. Thereby, the door can be held at the predetermined open position.

On the other hand, when closing the door held at a predetermined open position, a slightly stronger closing force is applied to the door to disengage the engagement between the locking piece and the stopper. The door can be closed.

[0005]

However, in the conventional opening / closing regulator, the door is suddenly closed when an unexpected external force such as a gust or a child acts on the door at a predetermined open position. It is problematic and unfavorable in both reliability and safety of operation. In addition, a loud impact sound is generated when the door is suddenly closed, which causes noise.

In particular, in a high-rise house seen in a large city or the like in recent years, a door for a high-rise entrance is more susceptible to a gust than the ground, so that the door is likely to close suddenly. Therefore, the problem such as the noise is more likely to occur.

The present invention has been made to solve such a problem, and it is an object of the present invention to reliably prevent a door or the like from suddenly closing even when an unexpected external force acts on the door or the like due to a gust. It is an object of the present invention to provide an open / close regulator that can be operated.

[0008]

SUMMARY OF THE INVENTION The switching regulator according to the present invention comprises:
(A) an outer cylinder made of a long hollow cylindrical body, (b) an insertion member slidably inserted into the outer cylinder, and (c) an outer cylinder provided at a tip of the insertion member, A piston that is airtightly adhered to the inner surface of the
(D) a terminal member provided at the rear end of the outer cylinder and formed with a discharge path for communicating between the inside and the outside of the outer cylinder; and (e) one end is exposed inside the outer cylinder of the terminal member. And (f) a plug slidably housed inside the outer cylinder and abutting against the other end of the spring. When there is a gap between the side surface of the plug and the inner surface of the outer cylinder, and when the piston moves to the rear end side of the outer cylinder at a speed lower than a predetermined speed, the air inside the outer cylinder loses air between the plug and the outer cylinder. The plug closes the discharge path of the terminal member when the piston moves to the rear end side of the outer cylinder at a predetermined speed or more while allowing the passage between the gap and the discharge path of the terminal member to pass. It is characterized by.

[0009] It is preferable that the apparatus further comprises a locking piece fixed to a vicinity of a distal end of the insertion member, and a stopper provided at a distal end of the outer cylinder for locking the locking piece.

[0010] A guide shaft protrudes from a surface of the plug facing the terminal member, and a concave portion for accommodating the guide shaft is formed rearward from a surface exposed to the inside of the outer cylinder of the terminal member. Is preferred.

A receiving cylinder into which the guide shaft of the plug is inserted is provided inside the concave portion of the terminal member, and at least a part of the receiving cylinder is formed with a groove extending in an axial direction of the receiving cylinder. Is preferred.

Preferably, a packing is provided on a surface of the plug facing the terminal member.

A sub-discharge path is formed in the plug to allow communication between a space inside the outer cylinder and a discharge path of the terminal member, and the plug is capable of opening and closing at an opening on the outer cylinder side of the sub-discharge path. A sub-spring for biasing the sub-plug in the closing direction of the sub-discharge path is provided in the plug, and the sub-discharge of the sub-plug at the distal end side of the piston. It is preferable that a protrusion for pressing in the opening direction of the path is provided in a protruding manner.

Preferably, the sub plug is provided with a sub packing.

According to the opening / closing regulator of the present invention, the plug at the end of the insertion member moves to the rear end side of the outer cylinder at a speed lower than the predetermined speed when the door is normally closed. At this time, since the air inside the outer cylinder is allowed to pass through the gap between the plug and the outer cylinder and the discharge path of the terminal member, the movement of the piston moves the air inside the outer cylinder to the outside. The door can be closed smoothly while discharging.

On the other hand, when the door is suddenly closed by an unexpected external force, the piston moves to the rear end side of the outer cylinder at a predetermined speed or more. At this time, the plug moves to the rear end side of the outer cylinder due to a sudden increase in pressure inside the outer cylinder, and closes the discharge path of the terminal member. As a result, the air inside the outer cylinder cannot be discharged outside, and is further compressed by the piston. Therefore, the insertion member is urged in the direction protruding from the inside of the outer cylinder to the outside by the air pressure inside the outer cylinder, thereby preventing the door from being suddenly closed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The switching regulator according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory perspective view showing a state in which an opening / closing regulator showing an embodiment of the opening / closing regulator of the present invention is mounted on a door, FIG. FIG. 4 is an explanatory view showing the flow of air during a normal closing operation of the door in the opening / closing regulator of FIG. 1, and FIG. FIG. 6 is a cross-sectional explanatory view showing another embodiment of the switching regulator according to the present invention, and FIG. 7 is a cross-sectional explanatory view of the switching regulator according to another embodiment of the present invention. It is a principal part expanded sectional view which shows the example which provided packing to the sub plug which shows.

[0018] As shown in FIG. 1, closing regulator 1 of the present invention, the end portion D ₁ is used by mounting in the vicinity of the upper end of the door D which is hinged to a door frame F. Specifically, the terminal member 7 provided at the rear end of the outer cylinder 2 is rotatably connected to the lower surface of the upper beam F ₁ of the door frame F via the bracket B ₁ , end is rotatably connected via a bracket B ₂ to the inner surface upper end of the door D. Switching regulator 1 of FIG.
While interlocked with the opening and closing of the door D, and is a bracket B ₁ to perform a rotational movement and an inner insertion member 3 of infested operation and the center of rotation at the same time.

As shown in FIG. 2, the switching regulator 1 comprises:
The outer cylinder 2, the insertion member 3, and members provided on the distal end side of the insertion member 3, that is, the locking pieces 4 and the piston 5;
And a member provided on the rear end side of the outer cylinder 2, that is, a terminal member 7, a spring 8 as an elastic member, and a plug 9. In the present embodiment, in order to make the description of the configuration easy to understand, in FIG.
The left side in the figure is called “rear end side”, while the insertion member is turned in the opposite direction.

The outer cylinder 2 is formed of a long hollow cylinder, for example, a cylinder made of a metal such as an aluminum alloy or a synthetic resin.

The insertion member 3 is a rod-shaped member slidably inserted inside the outer cylinder 2. Insertion member 3 of FIG.
Has a shape that cannot be rotated relative to the outer cylinder 2,
For example, the locking piece 4 is prevented from rotating with respect to the stopper 6 because the locking piece 4 has a semicircular cross section, has a ridge, or a combination thereof (see FIG. 3). 4 and the stopper 6 can be reliably engaged.

The locking piece 4 is a member that protrudes from the surface of the insertion member 3 and is fixed at a position near the distal end of the insertion member 3. For example, as the locking piece 4 shown in FIG. 2, a tongue piece having a rear end portion fixed to the insertion member 3 and a front end portion separated from the insertion member 3 is used.

The piston 5 is provided at the tip of the insertion member 3 and is slidable inside the outer cylinder 2 together with the insertion member 3. The piston 5 includes a base plate 5a and a packing 5b provided on a front surface 5c of the base plate 5a. The packing 5 b is made of rubber, synthetic resin, or the like, and is airtightly adhered to the inner surface of the outer cylinder 2.

The stopper 6 is a member provided at the tip of the outer cylinder 2. The stopper 6 has a hole 6a for inserting the insertion member 3, and a pressing piece 6b for locking the locking piece 4 on the inner surface of the hole 6a. Since the rear end side of the pressing piece 6b is thin, when the front end of the insertion member 3 moves to the front end of the outer cylinder 2, the locking piece 4 is securely engaged with the lower surface of the pressing piece 6b. Can be stopped.

The terminal member 7 is a member that is hermetically fixed to the rear end of the outer cylinder 2 and has an exhaust port 7a and a discharge path for communicating between the inside and the outside of the outer cylinder 2. In the case of FIG. 2, the discharge path is formed by a spring receiving hole 7 described later.
The continuous space portion of b and the concave portion 7c corresponds to this. Also,
At least one, preferably about two outlets 7a are formed so as to communicate with the outlet path.

One end of the spring 8 has the outer cylinder 2 of the terminal member 7.
The other end is in contact with the surface exposed inside, and the other end protrudes toward the distal end of the outer cylinder 2. The spring 8 employs a compression coil spring, for example, and is housed in a spring receiving hole 7b formed on a surface of the terminal member 7 exposed inside the outer cylinder 2. Note that sponge, rubber, or the like can be used as the elastic member in addition to the spring.

The plug 9 is a member slidably housed inside the outer cylinder 2 and is in contact with the other end of the spring 8 projecting toward the distal end of the outer cylinder 2. Between the side surface of the plug 9 and the inner surface of the outer cylinder 2, an air flow between the outer cylinder 2 and the outside of the exhaust port 7 a generated by the piston 5 during a normal door opening / closing operation is allowed. There is a gap G.

The gap G is formed, for example, when the inner diameter of the outer cylinder 2 is 20 to
In the case of about 40 mm, it is set to about 0.5 to 1.5 mm.

In order to guide the plug 9 so that the plug 9 can be moved horizontally without wobble, a guide shaft 9a is protruded from a surface of the plug 9 facing the terminal member 7, and a guide shaft 9a of the terminal member 7 is provided. A concave portion 7c for accommodating the guide shaft 9a is formed from the surface exposed inside the outer cylinder 2 to the rear side.

Further, in order to guide the plug 9 so that it can be moved horizontally more accurately without wobbling, the guide shaft 9 of the plug 9 is provided inside the concave portion 7c of the terminal member 7.
There is provided a receiving cylinder 10 into which a is inserted. Moreover,
In order for the air inside the outer cylinder 2 to smoothly flow to the exhaust port 7a,
A groove 10 a extending in the axial direction of the receiving cylinder 10 is formed in at least a part of the receiving cylinder 10, for example, at an appropriate position on the outer peripheral surface and the rear end surface.

In order to improve the airtightness between the plug 9 and the terminal member 7 when the plug 9 contacts the terminal member 7, A packing 11 is provided.

The outer cylinder 2 and other components (the inner member 3, the terminal member 7, the plug 9, and the like) can be made of various materials. Since the air pressure inside the cylinder 2 increases, it is preferable that the cylinder 2 is made of a material having sufficient pressure resistance, for example, a metal such as aluminum alloy, stainless steel, brass, or a hard synthetic resin.

Next, the operation of the switching regulator 1 of this embodiment will be described.

As shown in FIGS. 1 and 2, when the door D is opened, the insertion member 3 is pulled out of the outer cylinder 2 to the outside. At this time, since the plug 9 does not move, air flows smoothly from the exhaust port 7a into the outer cylinder 2 as the piston 5 moves. When the door D is at a predetermined open position (for example, a fully open position), the locking piece 4 is locked to the pressing piece 6b of the stopper 6, so that the door D is held at the predetermined open position. When it is desired to release the holding of the door D, a slightly stronger acting force in the closing direction is applied to the door D.
And the door D can be closed.

In the case of a normal door closing operation, as shown in FIG. 4, the piston 5 at the distal end of the insertion member 3 moves behind the outer cylinder 2 at a speed lower than a predetermined speed (usually, the speed at which a person opens and closes the door). When moving to the end side, the plug 9 does not move, so that the air inside the outer cylinder 2 causes the gap G between the plug 9 and the outer cylinder 2 and the discharge path of the terminal member 7 (specifically, the receiving cylinder 10 and groove 10a and spring receiving hole 7
b) is allowed to pass. Therefore, the door D can be closed smoothly while the air inside the outer cylinder 2 is discharged to the outside from the exhaust port 7a by the movement of the piston 5.

On the other hand, when the door D is suddenly closed due to unexpected external force from a gust, a child or the like, FIG.
As shown in (2), the piston 5 moves to the rear end side of the outer cylinder 2 at the predetermined speed or more. At this time, the plug 9 moves to the rear end side of the outer cylinder 2 due to a sudden increase in the pressure inside the outer cylinder 2 and closes the discharge path of the terminal member 7. As a result, the air inside the outer cylinder 2 cannot escape to the outside, and is further compressed by the piston 5. Therefore, abrupt closing of the door D is prevented by the air pressure inside the outer cylinder 2.

In the open / close regulator of the embodiment, as shown in FIG. 5, when the door D is suddenly closed by an unexpected external force, the plug 9 closes the discharge path of the terminal member 7. Therefore, the air inside the outer cylinder 2 is compressed, and the sudden closing of the door D is prevented.

However, when an external force is suddenly applied from a state in which the door D is not very opened (opening degree is less than about 40 °), the door inside the outer cylinder 2 is slowly compressed in a state where the air is compressed. D is fully closed (i.e., a latch provided on an end portion D ₂ of the door D in FIG. 1 (not shown) is locked to the door frame F) in some cases. In this case, if the knob K of the door D is turned to release the engagement between the latch and the door frame F, the door D may be suddenly opened due to the air pressure inside the outer cylinder 2.

Therefore, in order to prevent the door D from suddenly opening, as shown in FIG. 6, when the door D is fully closed, a mechanism (hereinafter referred to as a mechanism) capable of exhausting the air inside the outer cylinder 2 to the outside. , Purge mechanism).

The purging mechanism shown in FIG. 6 includes a plug 9 and a space inside the outer cylinder 2 and a discharge path for the terminal member 7 (specifically, the inside of the receiving cylinder 10 and the groove 10a, and the spring receiving member). A sub-discharge path 21 is formed for communicating with the hole 7 b). In the plug 9, a sub-plug 22 is provided in an opening 21 a of the sub-discharge path 21 on the outer cylinder 2 side so as to be openable and closable. , A sub-spring 23 for urging the sub-plug 22 in the closing direction of the sub-discharge path 21 is provided, and a projection 24 for pressing the sub-plug 22 is provided on the tip end side of the piston 5. It is configured by being protruded. In addition,
Reference numeral 25 denotes a stop pin that locks on the rear end of the sub spring 23.

According to the purge mechanism shown in FIG. 6, when the door D is not fully closed, the sub-plug 22 is urged in the closing direction by the sub-spring 23, so that the sub-discharge path 21 is closed. Further, since the urging force of the auxiliary spring 23 is set to be higher than the air pressure in the outer cylinder when the door D closes suddenly, the function of preventing the door D from closing suddenly is not impaired.

On the other hand, when the door D is fully closed, the piston 5
Reaches the plug 9, and at this time, the protrusion 24
The sub-plug 22 is urged in the opening direction against the urging force of the sub-plug 22 to open the sub-discharge path 21. Thereby, the air inside the outer cylinder 2 can be reliably discharged to the outside through the sub-discharge path 21, the discharge path, and the exhaust port 7a. Therefore, there is no possibility that the door D is suddenly opened when the knob of the door is turned as described above.

The sub plug 22 shown in FIG. 6 may have various shapes and structures as long as the sub discharge path 21 can be closed. In particular, as shown in FIG.
2 is provided with the auxiliary packing 27, the door D
It is preferable because outflow of air from the sub-discharge path 21 except for the time of fully closing can be surely prevented.

Further, in the present embodiment, the example in which the projection 24 is provided on the distal end side of the piston 5 has been described. However, the present invention is not limited to this. The purge function at the time of the fully closed state described above can be exerted even if it is provided on the side.

In the above embodiment, an example in which the opening / closing adjuster of the present invention is applied to a door has been described as an example. However, the present invention is not limited to this. , Windows, canopies, bay windows, inspection doors and the like.

[0046]

According to the present invention, even when an unexpected external force such as a gust acts on a door or the like, it is possible to reliably prevent the door or the like from closing suddenly.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view showing a state in which an opening / closing regulator showing an embodiment of the opening / closing regulator of the present invention is mounted on a door.

FIG. 2 is an explanatory cross-sectional view of the open / close regulator of FIG. 1;

FIG. 3 is a diagram viewed from the arrow A in FIG. 2;

FIG. 4 is an explanatory cross-sectional view showing the flow of air at the time of a normal door closing operation inside the opening / closing regulator of FIG. 1;

FIG. 5 is an explanatory cross-sectional view showing an air flow at the time of a door closing operation due to a gust inside the opening / closing regulator of FIG. 1;

FIG. 6 is an explanatory sectional view of a switching regulator showing another embodiment of the switching regulator of the present invention.

FIG. 7 is an enlarged sectional view of a main part showing an example in which packing is provided on a sub-plug showing still another embodiment of the switching regulator of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Opening-and-closing adjuster 2 Outer cylinder 3 Insertion member 4 Locking piece 5 Piston 6 Stopper 7 Terminal member 8 Spring 9 Plug G Gap

Claims (7)

[Claims] (A) an outer cylinder made of a long hollow cylinder,
(B) an insertion member slidably inserted into the outer cylinder; and (c) provided at the tip of the insertion member, airtightly adhered to the inner surface of the outer cylinder, and slid inside the outer cylinder. (D) provided at the rear end of the outer cylinder,
(E) one end of which is in contact with a surface of the terminal member which is exposed to the inside of the outer cylinder, and the other end of which is directed toward the distal end of the outer cylinder. And (f) a plug slidably housed inside the outer cylinder and abutting against the other end of the spring, between the side surface of the plug and the inner surface of the outer cylinder. When the piston moves to the rear end side of the outer cylinder at a speed less than a predetermined speed, the air inside the outer cylinder passes through the gap between the plug and the outer cylinder and the discharge path of the terminal member. Wherein the plug closes a discharge path of the terminal member when the piston moves to a rear end side of the outer cylinder at a predetermined speed or more. 2. The device according to claim 1, further comprising: a locking piece fixed to a vicinity of a tip of the insertion member; and a stopper provided at a tip of the outer cylinder for locking the locking piece. Open / close regulator as described. 3. A guide shaft protrudes from a surface of the plug facing the terminal member, and a recess is formed to receive the guide shaft rearward from a surface of the terminal member that is exposed inside the outer cylinder. The switching regulator according to claim 1 or 2, wherein the switching regulator comprises: 4. A receiving cylinder into which a guide shaft of the plug is inserted is provided inside the concave portion of the terminal member, and at least a part of the receiving cylinder is formed with a groove extending in an axial direction of the receiving cylinder. The switching regulator according to claim 1, 2 or 3. 5. The packing according to claim 1, wherein packing is provided on a surface of the plug facing the terminal member.
Open / close regulator as described. 6. A sub-discharge path is formed in the plug to allow communication between a space inside the outer cylinder and a discharge path of the terminal member. In the plug, an opening on the outer cylinder side of the sub-discharge path is formed. A sub-plug is provided so as to be openable and closable. In the plug, a sub-spring for biasing the sub-plug in the closing direction of the sub-discharge path is provided, and a tip side of the piston or a tip side of the sub-plug. 6. The open / close regulator according to claim 1, wherein a projection is provided to press the sub plug in an opening direction of the sub discharge path. 7. The switching regulator according to claim 6, wherein a sub-packing is provided on the sub-plug.