KR100848647B1 - A catch for folding door - Google Patents

Abstract

A locking device for a foldable door is provided to keep a door locked strongly and to lock or unlock a door quickly and conveniently by locking or unlocking the upper part and the lower part of a door simultaneously using a knob. A locking device for a foldable door comprises a main body(100) fixed to a door, an upper rod(120) and a lower rod(130) coupled to the upper part and the lower part of the main body to be movable vertically, a pair of latches(121,131) provided to the top and the bottom of the upper rod and the lower rod, a pair of hanger holders fixed to the upper part and the lower part of a doorframe correspondingly to the two latches, an X-shaped link(110) coupled to the main body to expand and contract vertically, a pair of connecting links(115) connecting the top and the bottom of the X-shaped link to the upper rod and the lower rod, and a knob(140) coupled to the X-shaped link and formed to be movable vertically along a guide hole(101) formed on a cover(103) of the main body.

Description

Folding Door Lock {A CATCH FOR FOLDING DOOR}

The present invention relates to a locking device for a foldable door, and more particularly, to a folding door locking device that can lock or unlock the top and bottom of the folding door at the same time, quickly and simply.

The foldable door has a structure in which a pair of bodies divided left and right are hinged to each other so that both sides are pivoted about the hinge coupler in the center to open and close while being folded or unfolded. This reduces the radius of rotation when opening and closing in half compared to a conventional one-piece door, and when opening, both sides are folded to occupy less space, making it possible to use the surrounding space more efficiently.

Due to the difference in the opening and closing method of the folding door lock device is installed on the upper or lower side, rather than being installed in the side portion like a normal door. That is, when the hinge portion of the center is fixed, opening and closing is impossible, so that a locking device is installed at a position close to the central hinge portion, and a hook holder is installed on the door frame so that the door is locked when both sides are fastened. .

However, as the locking device is provided on the upper or lower side as described above, there is a inconvenience in that the locking device of the high or low position must be operated when locking or releasing the door, and only one side of the upper and lower parts is provided with the locking device. If the door is locked when the door is locked, there is a problem that there is a risk that the lock is released as the door is deformed if a large external force is applied. In addition, in order to prevent the installation of the locking device on both the upper and lower, there was a problem that the inconvenience and time delay that must be operated both sides when locking or releasing the door.

The present invention is to solve the problems as described above, the object of the present invention is to operate the handle installed in a convenient position to lock or unlock the upper and lower doors at the same time to keep the lock state firmly fast And to provide a folding door lock that can be conveniently locked and unlocked.

According to the present invention for achieving the above object, a fixed body installed at an appropriate height on one side of the folding door and the receiving space therein; An upper rod and a lower rod coupled to the upper and lower portions of the main body so as to be movable upward and downward, respectively; A pair of latches provided on the upper and lower ends of the upper rod and the lower rod, respectively; A handle installed in the main body so as to rotate or linearly move; One side is connected to the handle and both sides are connected to the upper rod and the lower rod linkage means for moving the upper rod and the lower rod in opposite directions according to the rotation or linear movement of the handle; And it is provided with a locking device for a folding door including a hook holder which is provided in the door frame integrally or separately to correspond to each of the clasps.

In the locking device of the present invention, the interlocking means may be configured to include an X-shaped link that the central portion is condensed to the main body is stretched up and down according to the rotation or linear movement of the handle.

In addition, the handle is rotatably installed, the interlocking means may be of a structure including two or more links connected to the handle in both radial directions.

In addition, the handle is rotatably installed, the interlocking means may be of a structure comprising a pinion coupled to the handle, and a rack coupled to the upper rod and the lower rod to be engaged to both sides of the pinion.

Preferably, the handle may be made of a structure having a movable lever coupled to the side of the fixed lever to be rotated laterally.

According to the present invention as described above, by locking or releasing the latches of the upper and lower at the same time in conjunction with the operation of one handle, both the upper and lower sides are fixed when the door is locked so that the locked state can be maintained firmly It is possible to perform the locking and unlocking operation of the door easily and quickly, thereby improving the usability of the folding door.

In addition, by configuring the interlocking means through a combination of various mechanisms / machine elements in accordance with the installation conditions, there is an effect that can provide a locking device having a structure suitable for the installation conditions.

When the handle is not used, the handle can be pivoted to the side to prevent the discomfort caused by the body or the object being caught by the handle and prevent the door from being accidentally locked or released.

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing an embodiment of a folding door lock device according to the present invention, Figures 2 and 3 is an installation state diagram showing the lock device in a released and locked state, respectively.

As shown in Figures 1 to 3, the folding door lock of the present invention is fixed to the main body 100 is installed in the door 10, and the upper and lower portions of the main body 100 to be movable up and down, respectively Combined upper rod 120 and lower rod 130, a pair of clasps 121 and 131 provided at the upper and lower ends of the upper rod 120 and the lower rod 130, both clasps 121, 131) a pair of hook holders 30 and 40 fixedly installed on the upper and lower portions of the door frame 11 to correspond to each other, and an X-shaped link 110 which is condensed up and down by condensing a central portion of the main body 10. And a pair of connecting links 115 connecting the upper and lower ends of the X-shaped link 110 to the upper rod 120 and the lower rod 130, respectively, and being coupled to the X-shaped link 110. The handle 140 is configured to move up and down along the guide hole 101 formed in the cover 103 of the main body 100.

The hook holders 30 and 40 are formed with hook holes into which the latches 121 and 131 are inserted.

The handle 140 may be formed in one piece, but in the illustrated embodiment, the upper lever 143 is pivotally coupled to the fixed lower lever 141 in a direction orthogonal to the moving direction of the handle 140. Have

In the locking device of the present invention configured as described above, when the handle 140 is moved up and down, the upper rod 120 and the lower rod 130 are simultaneously moved in opposite directions according to the expansion and contraction of the X-shaped link 110. Both clasps 121 and 131 provided on the upper rod 120 and the lower rod 130 are fastened or separated at the same time to the hanger holders 30 and 40 at corresponding positions.

Accordingly, the locking is made at both the upper and lower sides of the door 10, and the locking state can be maintained firmly, and the upper part is simply operated by pushing or pulling the handle 140 of the main body 100 installed at an appropriate height. Locking and releasing of the lower and lower part is made together so that the door can be locked or released more conveniently and quickly.

In addition, after locking or releasing the door, the upper lever 143 constituting the handle 140 may be rotated to the side to minimize the protruding height of the handle 140, so that a body or an object is caught by the handle 140. It is possible to prevent the lock or unlock is not made.

On the other hand, in the above-described embodiment as an interlocking means for simultaneously lifting the upper rod 120 and the lower rod 130 provided with clasps 121, 131 X-shaped link 110 is stretched in accordance with the vertical movement of the handle 140 ), But the interlocking means is not limited thereto, and may be formed of a combination of various mechanisms / machine elements that allow the upper rod 120 and the lower rod 130 to move simultaneously in opposite directions. .

In addition, a gear structure may be used as another example of the interlocking means. That is, as shown in FIG. 4, the pinion 161 is coupled to the inner portion of the handle 140 rotatably coupled to the main body 100, and the upper rod 120 and the lower rod installed to be movable up and down ( 130 and the racks 163 and 165 meshed to both sides of the pinion 161 are respectively coupled to rotate the handle 140 so that the upper rod 120 and the lower rod 130 connected to both sides are opposite to each other. It can also be configured to lock and release while the lifting operation at the same time.

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The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a perspective view showing an embodiment of a locking device for a folding door according to the present invention.

2 and 3 are installed state diagrams showing the unlocking device shown in FIG. 1 in a released and locked state, respectively.

Figure 4 is an installation state showing another embodiment of the locking device for a folding door according to the present invention.

Claims (5)

A main body 100 fixedly installed at an appropriate height on one side of the folding door 10 and provided with an accommodation space therein; An upper rod 120 and a lower rod 130 coupled to the upper and lower portions of the main body 100 so as to be movable upward and downward, respectively; A pair of clasps 121 and 131 provided at upper and lower ends of the upper rod 120 and the lower rod 130, respectively; A handle 140 installed in the main body 100 to enable a linear movement; One side is connected to the handle 140 and both sides are connected to the upper rod 120 and the lower rod 130, the upper rod 120 and the lower rod 130 are opposite to each other according to the linear movement of the handle 140 Interlocking means for moving in a direction; And The hook holders 30 and 40 are integrally or separately provided on the door frame 11 so as to correspond to the respective clasps 121 and 131. The interlocking means has a central portion condensed on the main body 100 so that the handle ( Locking device for a foldable door comprising an X-shaped link (110) stretched up and down according to the linear motion of the 140. delete delete delete The door locking device according to claim 1, wherein the handle (140) comprises a lower lever (141) and a movable lever (143) rotatably coupled laterally outside the lower lever (141).

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