JP2013072179A - Door keylock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door keylock that prevents a door from thermally warping and also securely prevents flames and smoke from spreading when a fire takes place.SOLUTION: Latch locks 1, ..., 1 are fitted at three or two places on an opening end side of a door D having one end pivoted rotatably by a hinge, the door being locked by the latch locks 1, ..., 1 when closed, and also opened by unlocking the latch locks 1, ..., 1 at the same time by operating handles 8, 9 provided inside or outside the room when opened.

Description

  The present invention attaches latch locks to approximately the center part and the upper end part and the lower end part of the open end side of the door, or two places of the upper end part and the lower end part, and those three or two latch locks, The door can be unlocked and opened at the same time by operating the push-pull handle provided at the approximate center, and the door can be locked by the above three or two latch locks when the door is closed. The present invention relates to a door lock that prevents warping of a door due to heat even if it occurs and prevents diffusion of flames and smoke.

  As shown in, for example, Japanese Utility Model Laid-Open No. 60-90367 (hereinafter referred to as Patent Document 1), a conventional door lock is provided at a substantially central portion in the vertical direction of the door. It was a thing.

Japanese Utility Model Publication No. 60-90367

However, when the door lock of Patent Document 1 is closed, the latch of the latch lock is always locked by engaging with the receiving hole of the frame on the other side. One place. For this reason, if a fire breaks out in the building, the inside surface of the door expands due to heat and the door warps, but the center part of the door is locked and fixed with a latch lock. However, since the upper end and the lower end are not locked, as shown in FIG. 9, the door provided with one latch lock 02 at the substantially central portion in the vertical direction of the door D is greatly displaced to the outdoor side. As a result, there was a problem that flames and smoke diffused from the gap between the upper end and the lower end of the door and the damage expanded.
In FIG. 9, 03 is a latch, 04 is an outdoor handle, 05 is an indoor handle, and J is a frame.

In addition, there is a conventional three-point locking lock that locks three locations on the door, but this is designed to lock three locations with dead bolts for the purpose of crime prevention. When the door is closed, it is not always automatically locked. And in order to lock this, operation of a key or thumb turn is required, and a latch lock is attached to one place in the center.
Therefore, when the door is closed, one place in the center is always locked, but the upper and lower locks are not guaranteed to be locked, and if a fire occurs when the three locks are not locked, the same as above The door could not be warped.

  The present invention intends to solve the problems of the above conventional door locks, and is provided at approximately the center of the door at the open end side and three locations of the upper end and the lower end, or two locations of the upper end and the lower end. Is locked with a latch lock. When the door is closed, 3 or 2 places are always locked with a latch lock. An object of the present invention is to provide a door lock that can prevent the spread of the door and open the door by simultaneously unlocking the three or two latch locks by operating the handle in the substantially central portion.

  In order to achieve the above object, the door lock according to claim 1 of the present invention has a substantially central portion and an upper end portion in the vertical direction on the open end side of the door pivotally supported at one end by a hinge or the like. Latch locks are attached to three places on the lower end. When the door is closed, the above three places are locked. When the door is opened, the above-mentioned abbreviation is obtained by operating a push-pull handle provided at the substantially central part of the door. The latch lock at the center is unlocked, the interlock member is operated, and the latch locks at the upper end and the lower end connected to the interlock member are unlocked at the same time so that the door can be opened.

  The door lock of claim 2 has a push-pull type handle device attached to a substantially central portion thereof in the vertical direction on the open end side of the door, and a latch lock attached to the upper end portion and the lower end portion. Locked by two latch locks. When the door is opened, the interlock member is operated by operating the handle of the handle device, and the upper and lower latch locks connected to the interlock member can be unlocked to open the door. It is characterized by doing so.

  According to the door lock of the first aspect, in the vertical direction on the open end side of the door pivotally supported at one end by a hinge or the like, the latch lock is provided at approximately three portions of the central portion, the upper end portion, and the lower end portion. When the door is closed, it is locked by the above three latch locks. When the door is opened, the latch lock at the approximate center is unlocked by operating a push-pull handle provided at the approximate center of the door. In addition, since the interlocking member is operated and the latch locks of the upper end portion and the lower end portion connected to the interlocking member are unlocked at the same time so that the door can be opened. Since it is securely locked by the three latch locks at the upper and lower ends, a strong locking state can be obtained, and the warpage of the door can be reliably prevented in the event of a fire, preventing the spread of flames and smoke can do. When the door is opened, the push-pull type handle-type operation provided at the center of the door unlocks the latch at the center and unlocks the latch at the top and bottom at the same time. Since it can be opened, it is excellent in operability like a normal door lock.

According to the door lock of the second aspect, in the vertical direction on the open end side of the door, a push-pull type handle device is attached to the substantially central portion, and a latch lock is attached to the upper end portion and the lower end portion. Is locked by the above-mentioned two latch locks, and when the door is opened, the interlock member is operated by operating the handle of the handle device, and the latch locks at the upper and lower ends connected to the interlock member are unlocked and opened. Since the door can be closed, it is securely locked by two latches at the upper and lower ends when the door is closed. Can be prevented from spreading. In addition, when opening the door, the push-pull type handle-type operation provided in the approximate center allows the upper and lower latches to be unlocked and opened at the same time. As well as excellent operability.
In addition, according to the door of this Claim 2, since there may be few structural members compared with the door lock of Claim 1, it can provide cheaply.

It is the front view which looked at the door lock of Example 1 of the present invention from the outdoor side. It is a principal part longitudinal cross-sectional view which shows the lock case inside of the latch lock of the center part of FIG. It is a principal part cross-sectional top view of FIG. It is a longitudinal cross-sectional view which shows the case inside of the latch lock of the upper end part of FIG. In FIG. 2, it is a longitudinal cross-sectional view which shows the state which operated the handle | steering-wheel and unlocked the latch lock. In FIG. 4, it is a longitudinal cross-sectional view which shows the state which operated the handle | steering-wheel and was unlocked. It is the front view which looked at the door lock of Example 2 of this invention from the outdoor side. It is a principal part longitudinal cross-sectional view which shows the lock case inside of the latch lock of the center part of FIG. It is the figure which looked at the conventional door lock from the open end side of the door.

  The door lock according to claim 1 of the present invention will be described with reference to FIGS. 1 to 6. In the vertical direction on the open end side of the door D pivotally supported at one end by a hinge H or the like, Latch locks 1, 1, 1 are attached to the central part, the upper end part, and the lower end part, and are locked by the above-mentioned three latch locks 1, 1, 1 when the door is closed. By operating the push-pull type handles 8 and 9 provided on the door, the latch lock 1 at the substantially central portion is unlocked and the interlocking member 7 is operated, and the upper end and the lower end connected to the interlocking member 7 are operated. The latch locks 1 and 1 are unlocked simultaneously so that the door can be opened.

Further, the door lock according to claim 2 of the present invention will be described with reference to FIGS. 7 and 8. In the vertical direction on the open end side of the door D, a push-pull type handle device 1A is provided at a substantially central portion. Attach the latch locks 1 and 1 to the upper and lower ends. When the door is closed, it is locked by the two latch locks 1 and 1. When the door is opened, it is interlocked by operating the handles 8 and 9 of the handle device 1A. The member 7 is operated, and the latch locks 1 and 1 at the upper end and the lower end connected to the interlocking member 7 are unlocked so that the door can be opened.
For details, reference may be made to Examples 1 and 2 described below.

A door lock according to a first embodiment of the present invention will be described below with reference to FIGS. 1 to 6. In FIG. 1, D is a door, and one end side of the door D is pivotally supported by a hinge H. The latch locks 1, 1 and 1 are attached to three locations of the substantially central portion, the upper end portion and the lower end portion in the vertical direction on the open end side on the other end side.
The handles 8 and 9 shown in FIGS. 1 and 3 are conventionally known push-pull handles. The handle 9 on the outdoor side is pulled in the door opening direction, and the handle 8 on the indoor side is in the door opening direction. The operation levers 81 and 91 are operation levers that are tilted by the operation of the handles 8 and 9 and unlock the latch lock.

  Reference numerals 82 and 92 denote indoor and outdoor seats, and operation levers 81 and 91 that are tilted by the operation of the handles 8 and 9 are provided in the seats 82 and 92, respectively. A detailed description is omitted because it may be adopted.

  FIG. 2 shows the latch lock 1 attached to a substantially central portion in the vertical direction on the open end side of the door D. The latch 2 is placed in a latch case 28 in the lock case 11 via a spring 24 and a spring receiver 25. It is provided freely. The latch 2 is a conventionally known reversible latch, and the locking portions 31 and 41 of the locking members 3 and 4 are always engaged with locking grooves 21 and 21 formed on the upper and lower sides of the latch 2 so that the latch is reversed. Is held in a locked state.

The locking members 3 and 4 are substantially T-shaped plate-like bodies, and are pivotally supported by shafts 33 and 43 at the upper and lower portions of the lock case behind the latch 2.
Locking portions 31 and 41 are formed at the front end portions of the locking members 3 and 4, and engaging portions 32 and 42 that are engaged with an operation member 5 described later are formed at the rear end portion. In addition, the locking member 3 and the locking member 4 have their T-shaped legs 34 and 44 connected to each other by a connecting pin 35. When one of the locking members 3 and 4 rotates, the other rotates. Move. In addition, 45 is a kick spring hung on the locking member 4, and always urges the locking member 4 in the clockwise direction.

  Reference numeral 5 denotes an operating member provided at the rear of the lock case 11, which includes a U-shaped slider 51 and an operating rod 54 fixed to the slider 51. The slider 51 is provided in the lock case 11 so as to be slidable in the vertical direction with the guide holes 17 and 17 as guides. The U-shaped lower end portion 52 has an engaging portion of the locking member 4. 42 is engaged, and operation levers 81 and 91 of the handles 8 and 9 are inserted into and engaged with the upper end portion 53 from the outdoor side and the indoor side of the lock case 11.

  The operating rod 54 is composed of a shaft member having a large-diameter portion and a small-diameter portion, and the tip end portion of the large-diameter portion is fixed to the slider 51 by caulking, and the rear end portion of the small-diameter portion is the rear of the lock case 11. It protrudes from the opening part 15 formed in the edge part, and is engaged with the engagement hole 61 of the connection member 6 mentioned later.

  A guide member 12 is provided so as to surround an upper portion, a lower portion, and a rear end portion of the lock case 11, and the front end portions 12 </ b> A and 12 </ b> A are attached and fixed to the door D together with the lock case 11 with attachment screws 16 and 16. . A guide portion 13 is formed at the rear end portion of the guide member 12 to hold the interlocking member 7 and guide its operation in the vertical direction.

One piece of the U-shaped connecting member 6 is fixed to the interlocking member 7 by screws 62 and 62. Further, the other piece of the connecting member 6 is formed with an engaging hole 61 for engaging the operating rod 54 integrally with the operating member 5, and the operating rod 54 is engaged with the engaging hole 61. In conjunction with the vertical movement of 5, the interlocking member 7 also moves up and down.
In FIG. 2, reference numeral 14 denotes a guide hole for restricting the vertical movement of the screw 62 fixed to the interlocking member 7 that moves up and down according to the vertical movement of the operation member 5, and is provided at the rear end portion of the guide member 12.

  FIG. 4 shows the latch lock 1 attached to the upper end of the door D. The latch lock 1 has the same configuration as the latch lock 1 attached to the substantially central portion of the door, and includes a reversible latch 2, locking members 3, 4, an operating member 5 and the like. An upper end portion 71 of the interlocking member 7 is held by the end guide portion 13 so as to be movable up and down. Similarly to the latch lock 1 in the central portion, the operating member 5 and the upper end portion 71 of the interlocking member 7 are connected via the operating rod 54 and the connecting member 6 of the operating member 5, and the upper end portion of the latch lock 1 is latched. The operating member 5 of the lock 1 moves up and down in conjunction with the up and down movement of the interlocking member 7.

  Although not shown, the latch lock 1 attached to the lower end portion of the door D has the same configuration as the latch lock 1 attached to the central portion, similarly to the latch lock 1 attached to the upper end portion of the door. Thus, the lower end portion of the interlocking member 7 is connected to the operating member of the latch lock.

The effect | action of the door lock 10 of Example 1 of the said structure is demonstrated below.
2 and 3, when the outdoor handle 9 is pulled in the door opening direction, the operation lever 91 is tilted in conjunction with the operation of the handle 9, and the operation lever 91 is moved as shown in FIG. The slider 51 of the actuating member 5 is moved up. The upward movement of the slider 51 pushes the engaging portion 42 of the locking member 4 that engages the lower end portion 52 of the slider 51, and the locking member 4 rotates counterclockwise against the urging force of the kick spring 45. The engagement between the locking portion 41 at the tip and the locking groove 21 of the latch 2 is released.

  When the locking member 4 rotates, the locking member 3 connected by the connecting pin 35 also rotates in the clockwise direction, and the engagement between the locking portion 31 at the tip and the locking groove 21 of the latch 2 is engaged. Is also released, and the latch lock 1 is unlocked.

When the latch lock 1 is unlocked, the latch 2 can be reversed, and when the handle 9 is continuously pulled in the opening direction in the state shown in FIG. 3, the latch 2 causes the back portion 22 of the latch 2 to be seated by the force. Since the back surface portion 22 is inclined by being pushed by the side edge portion of the receiving hole 27 of 26, the latch 2 can be retracted into the lock case 11 by the action of the inclined surface and can be opened.
The latch 2 is a conventionally known inversion type latch, and its detailed description is omitted.
In FIG. 3, J is a frame of the door D.

  After the door is opened, the latch 2 protrudes by the urging force of the spring 24 and returns to the original state of FIG. 3, so that when the door is closed, the inclined surface portion 23 comes into contact with the seat 26 and the inclined surface of the inclined surface portion 23 acts. Thus, the latch 2 can be retracted and closed.

  When the operation is performed by pushing the handle 8 on the indoor side, the operation lever 81 is moved up, and the slider 51 of the operating member 5 is moved up as described above, so that the latch lock can be unlocked.

  As described above, when the push-pull type handles 8 and 9 are pushed and pulled to operate the slider 51 of the actuating member 5 to move the latch lock 1 at the center, the actuating member 5 is unlocked. The interlocking member 7 connected to the upper part of the interlocking member 7 is also moved upward integrally, and the operating member 5 of the latch lock 1 connected to the upper end 71 of the interlocking member 7 is moved upward to unlock the latching lock 1 at the upper end. .

At the same time, although not shown, the latch lock 1 at the lower end connected to the lower end of the interlocking member 7 is also unlocked in the same manner as described above.
That is, by operating the push-pull type handles 8 and 9 at the center of the door, the latch locks 1 at the center, the upper end, and the lower end can be simultaneously unlocked and opened.
When the door is closed, the door D is locked by the three latch locks 1.

As described above, in the door lock 10 of the first embodiment, the door D is locked by the latch locks 1, 1, 1 attached to the substantially central portion, the upper end portion, and the lower end portion, so that the door D is locked. The state is strong, and it is possible to reliably prevent warpage of the door D in the event of a fire and to reliably prevent the spread of flames and smoke.
In addition, the three latch locks 1 can have the same configuration, and the push-pull type handles 8 and 9 provided in the substantially central portion can use existing ones that are conventionally known. From this point, the inexpensive door lock 10 can be provided as a whole.

A door lock 10A according to Example 2 of the present invention will be described below with reference to FIGS.
In the door lock 10A of the second embodiment, the latch locks 1 and 1 are attached to two positions of the upper end portion and the lower end portion of the door D, and a handle device 1A is provided at a substantially central portion of the door. The latch locks 1 and 1 are locked, and when the door is opened, the two latch locks 1 and 1 are simultaneously unlocked and opened by operating the handle 1A of the handle device.

  The handle device 1A according to the second embodiment is the same component as the latch lock 1 according to the first embodiment except that the case 11A does not include any components such as the latch 2 and the locking members 3 and 4, and the actuating member 5 includes An operating rod 54 provided and fixed to the slider 51 engages with the connecting member 6, and the interlocking member 7 fixed to the connecting member 6 moves up and down in conjunction with the vertical movement of the slider 51.

The handles 8, 9 (8 is not shown) of the handle device 1A of the second embodiment are the same as the handles 8, 9 of the first embodiment, and the operation levers 81, 91 are sliders in the case 11A. 51, the operation levers 81 and 91 are moved up by operating the handles 8 and 9, and the slider 51 is moved up.
As the slider 51 is moved upward, the interlocking member 7 is moved upward via the operating rod 54 in the same manner as in the first embodiment, and the upper end and lower end latches connected to the upper end and the lower end of the interlocking member 7 are latched. Unlock locks 1 and 1.

  According to the second embodiment, since the upper and lower ends of the door are locked by the latch lock 1, the strength of the locked state is slightly inferior to that of the first embodiment in which the three positions are locked. The warp of the door at the time can be effectively prevented, and the spread of flame and smoke can be prevented. Moreover, since it is a simple structure compared with the door lock of Example 1, it can provide at low cost.

(Variations, etc.)
In the first and second embodiments of the present invention, the push-pull type handles 8 and 9 are employed. However, a lever handle may be employed instead of the push-pull type handle. In this case, the operating member 5 of the latch lock 1 in the substantially central portion is slid downward in conjunction with the turning operation of the lever handle to move the interlocking member 7 downward, and the upper end connected to the interlocking member 7. What is necessary is just to provide so that the latch lock of a part and a lower end part may be unlocked simultaneously.

  In addition, the push-pull type handle according to the first and second embodiments is not limited to the one shown in FIG. 3, and various conventionally known ones can be adopted.

  Further, the operation levers 81 and 91 by operating the push-pull type handle are not tilted upward as described above, but may be tilted downward or tilted in the left-right direction. Appropriate design changes can be easily made so that the locking members 3 and 4 of the latch lock 1 are rotated by the tilting of 81 and 91 to unlock the latch lock 1.

1 Latch lock 1A Handle device
2 Latch
3, 4 Locking member 5 Actuating member 6 Connecting member 7 Interlocking member 8 Indoor side handle 9 Outdoor side handle 10, 10A Door lock 11 Lock case 11A Case 12 Guide member 21 Locking groove 26 Receiving seat 27 Receiving hole 31, 41 Locking part 51 Slider 54 Actuation rod 81 Operation lever 91 Operation lever D Door J Frame

Claims (2)

  At one end of the door pivotally supported by a hinge or the like, in the vertical direction on the open end side of the door, latch locks are attached to approximately three portions of the center portion, the upper end portion, and the lower end portion. It is locked by a latch lock, and when the door is opened, the latch lock at the substantially central portion is unlocked by operating a push-pull handle provided at the substantially central portion of the door, and the interlocking member is operated. A door lock characterized in that the upper and lower latches connected to the interlocking member can be unlocked simultaneously to open the door.   In the vertical direction on the open end side of the door, a push-pull type handle device is attached to the approximate center, latch locks are attached to the upper and lower ends, and the doors are locked by the two latch locks when the door is closed. When opening the door, the interlock member is operated by operating the handle of the handle device, and the latch locks at the upper end and the lower end connected to the interlock member are unlocked so that the door can be opened. Door lock.

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