JP2004183297A - Securing device of door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a securing device for a door properly performing the opening and closing operation of a door only by pushing and pulling the door. <P>SOLUTION: This securing device for a door is adapted to fix a door D by inserting a slidably disposed bolt 1 in a groove 61 formed in a strike 6. The securing device is composed of: a rocking member 2 provided with a spring 11 slidably holding the bolt 1 on the tip side and energizing the bolt 1 in the projecting direction and rockably disposed on a base 5 through a rocking shaft 21; a sliding member 3 slidably disposed on the base 5 and abutted on the base end side of the rocking member 2 to regulate the rock of the rocking member 2; a holding member 4 provided with a spring 31 slidably holding the sliding member 3, and energizing the sliding member 3 in the projecting direction and disposed on the base 5; and the strike 6 formed with the groove 61 for inserting the bolt 1 and an inclined surface 62 formed to guide the bolt 1 to the groove 61. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a door fixing device, and more particularly to a door fixing device capable of appropriately performing a door opening / closing operation only by pushing and pulling a door.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an automatic door closing device (door closer) is attached to a door attached to an entrance in a room to automatically close an open door.
The automatic door closing device includes a spring for urging the door in a closing direction and a buffer mechanism such as a hydraulic damper for adjusting the speed when the door is closed.
[0003]
[Problems to be solved by the invention]
As described above, the conventional automatic door closing device includes a buffer mechanism such as a hydraulic damper that performs speed adjustment when the door closes so that the door does not suddenly close and hit a person or pinch a hand. Like that.
As a result, the inertia force of the door in the closing direction is absorbed by the cushioning mechanism, and the force of the spring biasing the door in the closing direction is reduced at the closed position of the door. Then, the force acting in the direction to close the door is reduced.
[0004]
On the other hand, the door is usually provided with a door fixing device having a latch bolt and a strike so that the door is not opened by a small external force such as wind.
By the way, the conventionally used door fixing device has a latch bolt in the closing direction of the latch bolt so that the fixing device functions even if the force acting in the direction of closing the door becomes small immediately before the door is closed. The surface is formed as an inclined surface, and the surface in the opening direction of the door is formed as a parallel surface so that the door is not opened by a small external force.
When the door is opened, the engagement between the latch bolt and the strike is released by turning the handle (grip ball, lever).
[0005]
As described above, the conventional door fixing device prevents the door from being opened by a small external force such as wind. When the door is opened, the handle is turned to lock the latch bolt and the strike. Has to be released, and there is a problem that it is difficult for the elderly or the handicapped to open the door when holding an object in both hands.
[0006]
Further, the door fixing device cannot be applied to a door that can be opened in both directions from the closed position of the door, since the door is opened when a small external force such as wind is applied from one direction.
[0007]
The present invention has been made in view of the above-described problems of the conventional door fixing device, and includes, for example, a door in which an automatic door closing device is attached and a force acting in a direction to close the door is reduced at a position immediately before the door is closed. An object of the present invention is to provide a door fixing device capable of properly opening and closing the door only by pushing and pulling the door, even in a door that can be opened in both directions from the closed position of the door.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a door fixing device according to the present invention is a door fixing device for fixing a door by inserting a slidably disposed bolt into a groove formed in a strike. Slidably mounted on a base via a oscillating shaft, the oscillating member having a spring for slidably holding the slidably and urging the bolt in a protruding direction, and a base end of the oscillating member. A sliding member arranged to be slidable with respect to the base, abutting against the side and restricting the swinging of the swinging member; holding the sliding member so as to be slidable, and projecting the sliding member It is characterized by comprising a holding member provided on a base, provided with a spring for urging in a direction, and a strike in which a groove for inserting the bolt and an inclined surface for guiding the bolt in the groove are formed.
[0009]
When the door is closed, when the door is closed, the bolt slides against the urging force of the spring that urges the bolt in the protruding direction while being guided by the slope formed in the strike, and the strike is prevented. It is inserted into the formed groove. As a result, the bolt and the strike are locked, so that the door cannot be opened by a small external force such as wind.
In the case of a door where the automatic door closing device is attached and the force acting in the direction of closing the door becomes small immediately before the door is closed, the spring that exerts a relatively small force on the bolt in the projecting direction swings the spring. By disposing the moving member, the door can be automatically closed without any trouble.
When the door is opened, by pushing or pulling the door, the bolt is inserted into the groove formed in the strike and abuts against the base end side of the swing member to swing the swing member. The sliding member that regulates the movement slides against the biasing force of the spring that biases the sliding member in the projecting direction, and the swinging member swings, thereby locking the bolt and the strike. Can be canceled.
Then, by adjusting the urging force of the spring for urging the sliding member in the protruding direction, the sliding member slides and the swing member swings, and the locking of the bolt and the strike is released. Can easily be adjusted.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a door fixing device of the present invention will be described with reference to the drawings.
[0011]
1 to 8 show a first embodiment of a door fixing device according to the present invention.
As shown in FIG. 1 and FIG. 2, the fixing device for the door is provided with a bolt 1 slidably mounted on a fixing device main body L disposed on the front end of the upper surface of the door D. The door D is fixed by inserting it into a groove 61 formed in a strike 6 provided in a vertical frame of the door frame K opposed to the fixing device main body L. A rocking member disposed on a base 5 via a rocking shaft 21 and provided with a spring 11 for slidably holding the bolt 1 on the distal end side and urging the bolt 1 in a protruding direction. A sliding member 3 slidably disposed on a base 5 for contacting the base end side of the swing member 2 to restrict the swing of the swing member 2; And a holding member 4 provided on the base 5 and having a spring 31 for slidably holding the sliding member 3 and urging the sliding member 3 in the protruding direction.
[0012]
In this case, the bolt 1 is urged in the protruding direction by the spring 11, and the pin 12 driven into the bolt 1 is inserted into the elongated hole 22 formed in the swinging member 2, thereby preventing the bolt 1 from coming off. It is slidably provided within the required range.
As the spring 11 for urging the bolt 1 in the protruding direction, a spring having a relatively small urging force is used, so that the automatic door closing device C attached to the door D is moved to a position immediately before the door D is closed. Even when the force acting in the direction to close the door D becomes small, the door D can be automatically closed without any trouble.
[0013]
The sliding member 3 slidably provided on the base 5 for contacting the base end side of the swing member 2 to restrict the swing of the swing member 2 is shown in FIGS. As shown, a distal end portion 32 having a flat surface abutting on a proximal end side of a swinging member 2 that slides by being fitted into a rectangular through hole 51 formed in a base 5 and a cylindrical portion 33 on the proximal end side. The spring 31 for urging the sliding member 2 in the projecting direction is inserted into the cylindrical portion 33.
[0014]
A holding member 4 provided on the base 5 and having a spring 31 for slidably holding the sliding member 3 and biasing the sliding member 3 in the protruding direction is shown in FIGS. As described above, it is fitted into a rectangular through hole 51 formed in the base 5 and fixed by screws (not shown) or the like, and has a bottomed circular hole 41 in which a spring 31 and a sliding member are provided. The cylindrical portion 33 on the proximal end side of the member 3 is inserted so that the sliding member 3 is slidably held.
[0015]
On the other hand, as shown in FIG. 6, the strike 6 has a groove 61 into which the bolt 1 is inserted and an inclined surface 62 for guiding the bolt 1 in the groove 61.
In this case, the inclined surface 62 is usually formed on both sides of the groove 61 so as to be applicable to a door that can be opened in both directions from the closed position of the door. In the case where the present invention is applied to a door that can only be opened, it may be formed on one side of the groove 61.
[0016]
Next, the operation of the door fixing device will be described.
First, when the door D is closed, as shown in FIG. 7, the bolt 1 resists the urging force of the spring 11 that urges the bolt 1 in the projecting direction while being guided by the inclined surface 62 formed in the strike 6. And slides into the groove 61 formed in the strike 6. Thereby, the bolt 1 and the strike 6 are locked, and the door D can be prevented from opening by a small external force such as wind.
Then, in the case of a door in which the force acting in the direction to close the door D is small at a position immediately before the door D is closed when the automatic door closing device C is attached, the force for urging the bolt 1 in the projecting direction is relatively small. By disposing the small spring 11 on the swing member 2, the door D can be automatically closed without any trouble.
[0017]
When the door D is opened, as shown in FIG. 8, by pushing or pulling the door D, the bolt 1 is inserted into the groove 61 formed in the strike 6, and the swing member 2 is moved. The sliding member 3 that abuts on the base end side of the sliding member 3 and regulates the swinging of the swinging member 2 slides against the urging force of the spring 31 that urges the sliding member 3 in the projecting direction. The moving member 2 swings, whereby the engagement between the bolt 1 and the strike 6 can be released.
Then, by adjusting the urging force of the spring 31 that urges the sliding member 3 in the protruding direction, the sliding member 3 slides and the swing member 2 swings, and the bolt 1 and the strike 6 The force required to release the lock can be easily adjusted.
[0018]
Thereby, for example, at the position where the automatic door closing device C is attached and immediately before the door D is closed, the force acting in the direction to close the door D becomes small, or the door can be opened in both directions from the closed position of the door D. In this case, while the opened door D can be automatically and reliably closed, the door D can be properly opened and closed simply by pushing and pulling the door D.
[0019]
In the door fixing device of the above embodiment, the fixing device main body L has a part, specifically, the sliding member 3 and the holding member 4 protruding from the rectangular through hole 51 formed in the base 5. A concave portion is formed at the tip of the upper surface of the door D, and is disposed so as to be embedded in the concave portion.
[0020]
In addition, as in the second embodiment of the door fixing device of the present invention shown in FIG. 9, the fixing device main body L is formed by forming a recess at the tip of the upper surface of the door D except for the bolt 1, It can also be arranged so as to be embedded in this recess.
[0021]
In this case, the fixing device main body L of the door fixing device includes a bolt 1 slidably disposed and a spring 11 that slidably holds the bolt 1 on the distal end side and urges the bolt 1 in the protruding direction. A swinging member 2 provided on a case-shaped base 7 so as to be swingable via a swinging shaft 21; and a swinging movement of the swinging member 2 in contact with a base end side of the swinging member 2. And a spring 31 for slidably holding the slide member 3 and slidably holding the slide member 3 and urging the slide member 3 in the projecting direction. And a holding member 4 disposed on a base 7.
[0022]
A strike 6 similar to the door fixing device of the first embodiment is disposed on the upper frame of the door frame K facing the fixing device main body L, and the fixing device main body L is slidably disposed. The bolt 1 is inserted into the groove 61 formed in the strike 6 to fix the door D.
[0023]
Other configurations and operations of the door fixing device are the same as those of the door fixing device of the first embodiment.
[0024]
As described above, the door fixing device of the present invention has been described based on a plurality of embodiments. However, the present invention is not limited to the configurations described in the above embodiments, and the configurations described in each embodiment may be appropriately combined. For example, the configuration of the fixing device main body L and the strike 6 may be reversed between the door D and the door frame K such that the mounting position is not deviated from the purpose.
And the applicable object is a door in which the force acting in the direction to close the door becomes small at a position immediately before the door is closed, in which the automatic closing device is attached, and a door which can be opened in both directions from the closed position of the door. By providing a door stop, the present invention can also be applied to a door that can be opened only in one direction from the closed position of the door.
[0025]
【The invention's effect】
According to the door fixing device of the present invention, when the door is closed, the bolt slides against the biasing force of the spring that biases the bolt in the protruding direction while being guided by the slope formed in the strike. Then, it is inserted into the groove formed in the strike. As a result, the bolt and the strike are locked, so that the door cannot be opened by a small external force such as wind.
In the case of a door where the automatic door closing device is attached and the force acting in the direction of closing the door becomes small immediately before the door is closed, the spring that exerts a relatively small force on the bolt in the projecting direction swings the spring. By disposing the moving member, the door can be automatically closed without any trouble.
When the door is opened, by pushing or pulling the door, the bolt is inserted into the groove formed in the strike and abuts against the base end side of the swing member to swing the swing member. The sliding member that regulates the movement slides against the biasing force of the spring that biases the sliding member in the projecting direction, and the swinging member swings, thereby locking the bolt and the strike. Can be canceled.
Then, by adjusting the urging force of the spring for urging the sliding member in the protruding direction, the sliding member slides and the swing member swings, and the locking of the bolt and the strike is released. Can easily be adjusted.
Thereby, for example, at the position where the automatic door closing device is attached and the position immediately before the door is closed, the force acting in the direction to close the door is reduced, and the door that can be opened in both directions from the closed position of the door is also opened. While the door can be automatically and reliably closed, the door can be opened and closed properly only by pushing and pulling the door.
[Brief description of the drawings]
FIG. 1 is an overall view showing a first embodiment of a door fixing device according to the present invention, wherein (a) is a plan view and (b) is a partially cutaway front view.
FIG. 2 is a front view of a door provided with the door fixing device.
3A and 3B show a sliding member of the door fixing device, wherein FIG. 3A is a left side view, FIG. 3B is a right side view, and FIG. 3C is a sectional view.
4 (a) is a plan view, FIG. 4 (b) is a left side view, FIG. 4 (c) is a right side view, and FIG. 4 (d) is a partially broken front view. .
FIG. 5 is a front view showing a base of the fixing device for the door.
6A and 6B show a strike of the door fixing device, wherein FIG. 6A is a plan view and FIG. 6B is a right side view.
FIG. 7 is an operation explanatory view when the door of the door fixing device is closed.
FIG. 8 is an operation explanatory view when the door of the fixing device for the door is opened.
FIG. 9 is an overall view showing a second embodiment of the door fixing device according to the present invention, wherein (a) is a front sectional view and (b) is a right side sectional view.
[Explanation of symbols]
C Automatic door closing device D Door L Fixing device main body 1 Bolt 11 Spring 2 Swinging member 21 Swinging shaft 3 Sliding member 31 Spring 4 Holding member 5 Base 6 Strike 61 Groove 62 Slope 7 Base (case)

Claims (1)

In a door fixing device for fixing a door by inserting a slidably disposed bolt into a groove formed in a strike, the bolt is slidably held at a distal end side and the bolt is urged in a protruding direction. A swing member provided on a base such that the swing member is swingable via a swing shaft, and a base that abuts on a base end side of the swing member to regulate the swing of the swing member. The sliding member is slidably disposed on the base, and the base is provided with a spring that slidably holds the sliding member and urges the sliding member in the protruding direction. A door fixing device comprising: a holding member; a groove in which the bolt is inserted; and a strike having an inclined surface for guiding the bolt in the groove.

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