JPH0710331U - Door check fixing device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a door check that can prevent the opening of the door. A door check main body 6 is attached to a door 5, and a first arm 8 connected to a drive shaft 7 of the door check main body 6 and a mounting bracket 4 attached to a door frame 1 are pivotally supported by a support shaft 9. The second arm 10 is coupled to the second arm 10 by a connecting pin 11, and the first arm 8 and the second arm 10 are provided with an annular member 12 for preventing the respective arms from rotating in the opening direction with the connecting pin 11 as a fulcrum. insert.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door check fixing device for crime prevention, and particularly when there is a person inside the room, the door check does not work even if an intruder opens the door from outside. Regarding the fixing device.

[0002]

[Prior art]

 A key is usually attached to the door of the room, and when leaving the room, the key is locked to prevent a suspicious person from entering. In addition, even when there are people in the room, it is common to lock the door from the inside and lock it with a chain or the like.

However, it is not always impossible for a suspicious person to unlock the key illegally, and therefore, even if the key is locked, it is not always safe. In particular, if a person is in the room and is sleeping with peace of mind thinking that they have locked the door, if an intruder illegally opens the key and goes inside, it is merely a robbery. If you make a mistake, there is a risk of human life.

[0004]

[Problems to be solved by the device]

 As mentioned above, it is impossible to absolutely prevent unauthorized unlocking by a suspicious person, regardless of how the keys are locked. However, at least when there is a person in the room, the inventor of the present invention paid attention to the door check, wondering if there was a device that would prevent the door from opening even if the key was opened illegally.

As is well known, in the door check, the door check main body is attached to the inside of the door, and the front end of the arm link is fixed to the side of the door frame, so that the door is gently opened and closed. However, as described above, the conventional door check only has the function of gently opening and closing the door, and does not have the function of temporarily disabling the opening and closing of the door.

Therefore, the present invention has improved the above-mentioned drawbacks, and an object thereof is to provide a fixing device for a door check capable of preventing the opening of the door.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, a door check according to the present invention has a door check main body mounted on a door, and is pivotally supported by a first arm connected to a drive shaft of the door check main body and a mounting bracket attached to a door frame. The second arm is connected with a connecting pin, and the first arm and the second arm are detachably provided with fixing fittings for preventing the respective arms from rotating around the connecting pin as a fulcrum. To do.

It is preferable that the fixing member is formed of an annular member, and the annular member is inserted into the first arm and the second arm from the side of the connecting pin. The annular member is inserted into the first arm and the second arm, and either the magnetic force of the permanent magnet, or the protrusion provided on either the first or second arm, or the first or second arm. It is preferable that the engaging pin that is removably inserted into the pin hole formed on the first side prevents the escape from the first and second arms. Also, a long handle may be hung from the annular member.

[0009]

[Action]

 When the door is closed, the first arm and the second arm of the door check are closed with the connecting pin as a fulcrum. It is possible to prevent the first arm and the second arm from rotating in the opening direction with the connecting pin as the fulcrum. Therefore, even if the door is to be opened, the door cannot be opened because the first arm and the second arm are fixed.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view of this embodiment, and FIG. 2 is a plan view of FIG. In each drawing, a mounting bracket 4 is fixed to an upper frame 2 of a door frame 1 with a screw 3, while a door check main body 6 is mounted on an upper inner side of a door 5. The base end of the first arm 8 is fixed to the drive shaft 7 of the door check body 6, and the second arm 10 is pivotally supported by the support shaft 9 at the tip of the mounting bracket 4. The front end of the one arm 8 is connected by a connecting pin 11.

When the door 5 is closed, the first arm 8 and the second arm 10 are closed around the connecting pin 11 as a fulcrum, and the front ends of the closed first arm 8 and second arm 10 ( That is, the annular member 12, which is a fixing member, is inserted from the connection pin 11 side).

By thus inserting the annular member 12 into the first arm 8 and the second arm 10, the first arm 8 and the second arm 10 can rotate in the opening direction with the connecting pin 11 as a fulcrum. I can't. Therefore, even if an intruder illegally unlocks the key (not shown) and tries to open the door 5 by holding the handle (not shown) of the door 5, the door check 13 is fixed by the annular member 12. The door 5 cannot be opened because it is open.

Further, after inserting the annular member 12 into the first arm 8 and the second arm 10 as shown in FIGS. 1 and 2, the annular member 12 does not come out from the first arm 8 and the second arm 10. As described above, locking means may be provided if necessary. In the embodiment of FIGS. 1 and 2, a hole 15 is provided in the first arm 8, an engaging pin 16 is inserted into the hole 15, and the annular member 12 is inserted on the back side of the engaging pin 16. Therefore, in the illustrated state, the annular member 12 does not hit the locking pin 16 and escape from the first arm 8 and the second arm 10.

If the annular member 12, the first arm 8 and the second arm 10 are made of a magnetic member and one side is made a permanent magnet, the magnetic force causes the annular member 12 to move to the first arm 8 and the second arm. It is adsorbed by the two arms 10 and does not escape from the arms 8 and 10.

Further, as another embodiment, as shown in FIG. 5, an engaging protrusion 17 is erected on the first arm 8 and the annular member 12 is passed over the engaging protrusion 17 to form a first protrusion. The arm 8 and the second arm 10 may be engaged. According to this structure, the annular member 12 is locked by the engaging projection 17 and does not come out of the first arm 8 and the second arm 10. When the annular member 12 is to be disengaged from the first arm 8 and the second arm 10, it is preferable that the annular member 12 be held by hand, over the engagement protrusion 17 and removed toward the front.

Further, in the embodiment, the long handle 18 is hung from the annular member 12. Since the door check 13 is generally provided on the upper portion of the door 2, this is convenient when a short person such as a child detaches the annular member 12 from the first arm 8 and the second arm 10. This is due to consideration. That is, it is possible to easily engage and disengage the annular member 12 at the upper end of the long handle 18 with the first arm 8 and the second arm 10. Therefore, it goes without saying that the annular member 12 has the original function without the long handle 18.

In the above embodiment, the example of the annular member 12 is shown as an example of the fixing metal member for holding the fixed state of the door check 13, but the present invention is not limited to this, and the connecting pin 11 is used as a fulcrum. A structure other than that shown in the drawings may be used as long as it prevents the rotation of the first arm 8 and the second arm 10.

[0018]

[Effect of device]

 As described above, according to the present invention, it is possible to prevent the opening of the door from the inside through the door check by blocking the rotation of the first arm and the second arm of the door check using the fixing metal fitting. Even if an intruder illegally opens the key from the outside of the door, it is absolutely impossible to open the door, and the inside person can rest comfortably.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a door is closed by a door check fixing device according to an embodiment.

FIG. 2 is a plan view of FIG.

FIG. 3 is a plan view showing a state in which a door check fixing device is released and a door is opened.

FIG. 4 is a perspective view of a main part of a door check fixing device according to another embodiment.

[Explanation of symbols]

 1 Door frame 4 Mounting bracket 5 Door 6 Door check body 7 Drive shaft 8 First arm 10 Second arm 11 Connecting pin 12 Annular member

Claims (6)

[Scope of utility model registration request] 1. A door check main body is attached to a door, and a first arm connected to a drive shaft of the door check main body,
A second arm pivotally supported by a mounting bracket attached to the door frame is connected by a connecting pin, and the first arm and the second arm are fixed to prevent rotation of these arms with the connecting pin as a fulcrum. Door check fixing device characterized in that metal fittings are provided so as to be removable. 2. The door check fixing device according to claim 1, wherein the fixing metal member is constituted by an annular member which is inserted into the first arm and the second arm from the side of the connecting pin. . 3. The door check fixing device according to claim 2, wherein the annular member is held in a state of being inserted into the first arm and the second arm by a magnetic force of a permanent magnet. 4. The annular member is prevented from coming out of the first arm and the second arm by a protrusion provided on either the first arm or the second arm. The door check fixing device described in 2. 5. The annular member includes the first arm and the second arm.
The door check according to claim 2, wherein an engagement pin that is detachably inserted into a pin hole formed in any one of the arms prevents the escape from the first arm and the second arm. Fixing device. 6. The door check fixing device according to claim 2, wherein a long handle hangs down from the annular member.