JP3978123B2 - Door fixing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door fixing device, and more particularly to a door fixing device that can appropriately open and close the door simply by pushing and pulling the door.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an automatic closing device (door closer) is attached to a door attached to a doorway in a room in order to automatically close the opened door.
The automatic door closing device includes a spring that biases the door in the closing direction and a buffer mechanism such as a hydraulic damper that adjusts the speed when the door closes.
[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 adjusts the speed when the door is closed so that the door does not suddenly close and hit a person or a hand is caught. I am doing so.
As a result, the inertial force of the door in the closing direction is absorbed by the buffer mechanism, and the spring force that biases the door in the closing direction itself becomes small at the door closing position, so the position immediately before the door is closed. Then, the force that works in the direction of closing 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 door fixing device used in the related art is such that the door of the latch bolt is closed so that the fixing device functions even if the force acting in the direction of closing the door is reduced immediately before the door is closed. The surface is formed as an inclined surface, and the surface in the direction in which the door opens is formed as a parallel surface so that the door is not opened by a small external force.
When the door is opened, the latch (strike ball, lever) is turned to release the latch bolt and strike.
[0005]
Thus, the conventionally used door fixing device prevents the door from being opened by a small external force such as wind. Therefore, when the door is opened, the latch bolt and the strike are locked by turning the handle. There is a problem that it is difficult to open the door when holding an object in both hands or for the elderly or disabled.
[0006]
In addition, the door fixing device cannot be applied to a door that can be opened in both directions from the door closing position because a door is opened when a small external force such as wind is applied from one direction.
[0007]
In view of the problems of the above-described conventional door fixing device, the present invention is, for example, a door in which an automatic closing device is attached and the force acting in the direction of closing the door is reduced 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 a door even if the door can be opened in both directions from the closed position.
[0008]
[Means for Solving the Problems]
To achieve the above object, the door fixing device according to the present invention is a door fixing device for fixing a door by inserting a slidably arranged bolt into a groove formed in a strike. A swinging member that is slidably held on the base and that is swingable via a swinging shaft, and a base end of the swinging member A sliding member that is slidably arranged with respect to the base and that is slidable with respect to the base. A holding member provided on a base having a spring biasing in a direction, a groove portion into which the bolt is inserted, and a strike in which an inclined surface for guiding the bolt is formed in the groove portion.
[0009]
When closing the door, this door fixing device slides against the urging force of the spring that urges the bolt in the protruding direction while the bolt is guided by the inclined surface formed on the strike. It is inserted into the formed groove. Thereby, the bolt and the strike are locked, and the door can be prevented from being opened by a small external force such as wind.
In the case of a door to which the force acting in the direction of closing the door becomes small immediately before the door is closed after the automatic closing device is attached, the spring that urges the bolt in the protruding direction swings a relatively small spring. By disposing the moving member, the door can be automatically closed without any trouble.
Also, when the door is opened, by pushing or pulling the door, with the bolt inserted into the groove formed in the strike, the door contacts the base end side of the swing member and swings 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 protruding direction, and the swinging member swings, thereby locking the bolt and the strike. It can be canceled.
Then, by adjusting the urging force of the spring that urges the sliding member in the protruding direction, the sliding member slides and the oscillating member oscillates to release the engagement between the bolt and the strike. The force required for this can be easily adjusted.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments 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 of the present invention.
As shown in FIGS. 1 to 2, the door fixing device includes a fixing device main body L provided with a bolt 1 that is slidably disposed on a fixing device main body L disposed at a front end portion of the upper surface of the door D. Is inserted into the groove 61 formed in the strike 6 disposed in the frame of the door frame K opposite to the door frame K to fix the door D. The fixing device main body L is slidably disposed on the bolt 1 and A swinging member disposed on the base 5 so as to be swingable via a swinging shaft 21 provided with a spring 11 that slidably holds the bolt 1 on the tip side and biases the bolt 1 in the protruding direction. 2, a sliding member 3 that is in contact with the base end side of the swinging member 2 and restricts swinging of the swinging member 2, and is slidably disposed with respect to the base 5, and the sliding member 3 is configured to be slidable, and includes a holding member 4 disposed on the base 5 provided with a spring 31 that biases the sliding member 3 in the protruding direction.
[0012]
In this case, the bolt 1 is urged in the projecting direction by the spring 11, and the pin 12 driven into the bolt 1 is inserted into the elongated hole 22 formed in the swing member 2, thereby preventing the bolt 1 from coming off. It is slidably arranged within a required range.
And the spring 11 which urges | bolts the volt | bolt 1 to a protrusion direction uses the spring with comparatively small urging | biasing force, By the automatic closing device C attached to the door D in the position just before the door D is closed, Even when the force acting in the direction of closing the door D is small, the door D can be automatically closed without any trouble.
[0013]
Further, the sliding member 3 disposed so as to be slidable with respect to the base 5 that restricts the swinging of the swinging member 2 by contacting the base end side of the swinging member 2 is shown in FIGS. 3 and 5. As shown, a distal end portion 32 having a flat surface that contacts the proximal end side of the swinging member 2 that slides in a rectangular through hole 51 formed in the base 5 and a tubular portion 33 on the proximal end side. The spring 31 that urges the sliding member 2 in the protruding direction is inserted into the cylindrical portion 33.
[0014]
The holding member 4 disposed on the base 5 having a spring 31 that holds the sliding member 3 in a slidable manner and biases the sliding member 3 in the protruding direction is shown in FIGS. 4 and 5. In this way, it is fitted into a rectangular through-hole 51 formed in the base 5 and fixed by a screw (not shown) or the like, and is provided with a bottomed circular hole 41, and a spring 31 and a slide in the circular hole 41. 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 is formed with a groove portion 61 into which the bolt 1 is inserted and an inclined surface 62 that guides the bolt 1 in the groove portion 61.
In this case, the inclined surface 62 is usually formed on both sides of the groove 61 so that it can be applied to a door that can be opened in both directions from the closed position of the door. In the case of applying 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 biasing force of the spring 11 that biases the bolt 1 in the protruding direction while being guided by the inclined surface 62 formed on the strike 6. And is inserted 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 being opened by a small external force such as wind.
And in the case of the door to which the force which works in the direction which closes the door D becomes small just before the automatic closing device C is attached and the door D is closed, the force which urges | bolts the volt | bolt 1 to a protrusion direction is comparatively. 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, the swing member 2 is inserted in the groove 61 formed in the strike 6 by pushing or pulling the door D. The sliding member 3 that abuts the base end side of the sliding member 2 and restricts the swinging of the swinging member 2 slides against the biasing force of the spring 31 that biases the sliding member 3 in the protruding direction, and The moving member 2 swings, and thereby the locking of the bolt 1 and the strike 6 can be released.
Then, by adjusting the biasing force of the spring 31 that biases the sliding member 3 in the protruding direction, the sliding member 3 slides and the swinging member 2 swings, so that the bolt 1 and the strike 6 The force required to release the lock can be easily adjusted.
[0018]
Thereby, for example, the door that can be opened in both directions from the closed position of the door D, where the force acting in the direction of closing the door D is reduced immediately before the automatic closing device C is attached and the door D is closed. In this case, the opened door D can be automatically and surely closed. On the other hand, the door D can be properly opened and closed simply by pushing and pulling the door D.
[0019]
By the way, the door fixing device of the embodiment described above includes the fixing device main body L, a part thereof, specifically, the sliding member 3 and the holding member 4 protruding from the rectangular through hole 51 formed in the base 5. A recess is formed at the tip of the upper surface of the door D, and is arranged so as to be embedded in the recess.
[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 with 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 the recess.
[0021]
In this case, the fixing device main body L of the door fixing device includes a bolt 1 that is slidably disposed, and a spring 11 that slidably holds the bolt 1 on the tip side and biases the bolt 1 in the protruding direction. The swinging member 2 provided on the case-like base 7 so as to be swingable via the swinging shaft 21, and the swinging member 2 swings in contact with the base end side of the swinging member 2. A sliding member 3 slidably disposed with respect to the base 7 and a spring 31 for holding the sliding member 3 slidably and biasing the sliding member 3 in the protruding direction. The holding member 4 provided on the base 7 is provided.
[0022]
The 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 so that the fixing device main body L is slidable. The bolt 1 is inserted into the groove 61 formed in the strike 6 so that the door D is fixed.
[0023]
The other structure and operation of the door fixing device are the same as those of the door fixing device of the first embodiment.
[0024]
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 the embodiments are appropriately combined. In addition, the configuration of the fixing device main body L and the strike 6 can be appropriately changed within a range not departing from the gist of the door D and the door frame K, for example.
In addition to the doors that can be opened in both directions from the closed position of the door, the automatic closing device is installed and the force that works in the direction of closing the door is reduced immediately before the door is closed. By providing the door stop, it 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 biasing the bolt in the protruding direction while being guided by the inclined surface formed in the strike. And inserted into the groove formed in the strike. Thereby, the bolt and the strike are locked, and the door can be prevented from being opened by a small external force such as wind.
In the case of a door to which the force acting in the direction of closing the door becomes small immediately before the door is closed after the automatic closing device is attached, the spring that urges the bolt in the protruding direction swings a relatively small spring. By disposing the moving member, the door can be automatically closed without any trouble.
Also, when opening the door, by pushing or pulling the door, the bolt is in contact with the proximal end side of the swinging member in a state where the bolt is inserted into the groove formed in the strike. The sliding member that regulates the movement slides against the biasing force of the spring that biases the sliding member in the protruding direction, and the swinging member swings, thereby locking the bolt and the strike. It can be canceled.
Then, by adjusting the urging force of the spring that urges the sliding member in the protruding direction, the sliding member slides and the oscillating member oscillates to release the engagement between the bolt and the strike. The force required for this can be easily adjusted.
Thereby, for example, even in a door where the automatic closing device is attached and the force that acts in the direction of closing the door is reduced immediately before the door is closed, or in a door that can be opened in both directions from the door closing position. While the door can be automatically and reliably closed, the door can be opened and closed properly by simply 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 a fixing device for the door.
3A and 3B show a sliding member of the fixing device for the door, wherein FIG. 3A is a left side view, FIG. 3B is a right side view, and FIG.
4A and 4B show a holding member of the fixing device for the door, wherein FIG. 4A is a plan view, FIG. 4B is a left side view, FIG. 4C is a right side view, and FIG. .
FIG. 5 is a front view showing a base of the fixing device for the door.
6A and 6B show a strike of the fixing device for the door, where FIG. 6A is a plan view and FIG. 6B is a right side view.
FIG. 7 is an operation explanatory diagram when closing the door of the fixing device of the door.
FIG. 8 is an operation explanatory diagram 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 of the present invention, in which (a) is a front sectional view and (b) is a right side sectional view.
[Explanation of symbols]
C Automatic closing device D Door L Fixing device main body 1 Bolt 11 Spring 2 Oscillating member 21 Oscillating shaft 3 Sliding member 31 Spring 4 Holding member 5 Base 6 Strike 61 Groove 62 Inclined surface 7 Base (case)

Claims (1)

In a door fixing device that fixes a door by inserting a slidable bolt into a groove formed in a strike, the bolt is slidably held on the tip side, and the bolt is urged in a protruding direction. A swinging member that is provided on the base so as to be swingable via a swinging shaft and a base that is in contact with the base end side of the swinging member to restrict swinging of the swinging member. A sliding member disposed slidably with respect to the base, and a base provided with a spring that slidably holds the sliding member and biases the sliding member in the protruding direction. A door fixing device comprising: a holding member; a groove portion into which the bolt is inserted; and a strike in which an inclined surface for guiding the bolt is formed in the groove portion.

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