JP3012656U - Sliding door lock device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a locking device for a sliding door, which has a simple structure, is easy to manufacture and install, and has excellent operability. [Structure] A pair of storage parts 13, 1 provided in a case 11
4 into the lock member 21 and the lock member 31, the springs 22 and 32 for urging the lock member 21 and the lock member 31 toward the indoor side, and the through hole 15 provided in the partition wall 12 of the storage section. It is composed of the movable locking member 16 housed. Locking and unlocking can be performed by a simple operation of pushing the locking member 21 and the locking member 31 by the action of the movable locking member 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a locking device for a sliding door, for example, a locking device that is attached to an external shoji of a sliding door to prevent opening and closing of the shoji, and is particularly used as an auxiliary locking device provided separately from a crescent normally provided. The present invention relates to a sliding door locking device that is suitable for operating.

[0002]

[Prior art]

 Conventionally, in addition to a main locking device such as a crescent, an auxiliary locking device is attached to the lower part of the sliding door, etc., for sliding doors such as sliding doors, and it is possible to improve crime prevention measures by locking at two points. It is being appreciated.

[Problems to be solved by the device]

Various types of such auxiliary locking devices have been devised and used in the past, but all of them have complicated structures and are troublesome to manufacture and install, and locking / unlocking devices have been used. There were drawbacks such as complicated lock operation and lack of reliability.

Therefore, an object of the present invention is to provide a sliding door locking device that has a simple structure, is easy to manufacture and install, and has excellent operability.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a sliding door locking device of the present invention is a sliding door locking device that locks the sliding door with a locking member that is provided near a summing frame of the sliding door and that appears and disappears inside the room. A case fixed to the end of the horizontal frame of the sliding door, and a locking member and a locking member respectively housed in a pair of housings defined by a partition wall provided in the case, and the locking member and the locking member in the chamber. The locking member has a spring that biases inward and a movable locking member that is larger than the thickness of the partition wall housed in the through hole provided in the partition wall. The lock member is movably housed in the storage unit between a storage position at the same level and a locking position protruding from the case inner surface, and the lock member has an inner surface substantially flush with the case inner surface. From a certain position and the inside of the case to the inside of the storage The movable locking member is housed in the housing so that it can move between the retracted position and the locking member and the locking member, and the facing surfaces of the locking member and the locking member project outward, respectively. When the locking member is pushed into the storage position, it is pressed by the side surface on the outdoor side of the locking step portion of the locking member and protrudes from the through hole toward the locking member side, and is pushed to the locking step portion on the side surface of the locking member. When the locking member is moved so as to be held in the storage position by being locked, and when the locking member is pushed into the retracted position, the locking step of the locking member is pressed by the side surface on the outside of the room and the locking member is pushed. It is characterized in that the lock member is configured to be movable so as to be held in the retracted position by protruding from the hole to the lock member side and engaging with a step portion provided on the side surface of the lock member.

[0006]

[Work]

 The locking device for a sliding door configured as described above is used by fixing the case to the notch for mounting the case provided at the end of the sliding door horizontal frame on the side of the summing frame. Then, when the lock member is pushed in, the movable locking member moves to the lock member side to hold the lock member in the retracted position, and the locking member projects to the indoor side by the action of the spring to lock the sliding door. When the locking member is pushed in in the locked state, the movable locking member moves to the locking member side to hold the locking member in the storage position, and the locking member is flush with the inner surface of the case due to the action of the spring. The locking member is held in the storage position so that the sliding door can be opened and closed.

[0007]

【Example】

 Hereinafter, the present invention will be described in more detail based on an embodiment shown in the drawings. Each of the figures shows an embodiment in which the sliding door locking device of the present invention is attached to a sliding window, so that FIG. 1 is a cross-sectional view showing the locking device in a locked state, and FIG. 3 is an overall perspective view of the locking device, FIG. 4 is a cross-sectional view showing the locking device in an unlocked state, and FIG. 5 is a cross-sectional view showing a main part of the locking device.

The locking device of the sliding door according to the present embodiment is provided in the vicinity of the summing frame 2 of the sliding door 1 of the sliding door, and for example, a cut formed at the end of the lower frame 3 of the sliding door 2. It is attached to the notch 4 and is used as an auxiliary lock for a crescent (not shown) provided at the center of the dressing frame 2.

The locking device includes a case 11 formed in a shape corresponding to the cutout portion 4 of the lower frame 3, and a pair of storage portions 13 defined by a partition wall 12 provided in the case 11. , 14 respectively housed in the lock member 21, the lock member 31, the springs 22, 32 for urging the lock member 21 and the lock member 31 toward the indoor side, and the through holes provided in the partition wall 12. It is composed of a movable locking member 16 housed in 15.

The case 11 is composed of a case body 11a on the indoor side and a back lid 11b fitted on the outdoor side of the case body 11a. The lower frame 3 is provided on the indoor side of the case body 11a. There is a collar piece 17 that engages with the peripheral edge of the notch part of the case, and the case 11 is inserted into the notch part 4 from the end of the lower frame 3 and fixed by attaching the assembling frame 2 to the lower frame 3. To be done.

The locking member 21 housed in the one housing portion 13 of the case 11 has a storage position in which the inner surface thereof is substantially flush with the inner surface of the case 11, and a locking position protruding from the inner surface of the case. The lock member 31, which is movably provided between the inside of the case and the inside of the case, is housed in the other housing 14 such that the interior surface of the lock member 31 is substantially flush with the interior surface of the case 11. It is provided so as to be movable between the position where it is immersed in the portion 14 and is biased in the indoor direction by the springs 22 and 32, respectively.

The indoor positions of the locking member 21 and the lock member 31 are restricted by the locking step portions 23 and 33 that abut against the step portion 11c projecting on the indoor inner peripheral wall of the case 11, and the outdoor position is The movable locking member 16 is held by the locking step portions 23 and 33 located on the surfaces facing each other.

The movable locking member 16 is made of a round bar member having a diameter larger than the thickness of the partition wall 12, and a predetermined amount projects into the through hole 15 into one of the storage portions 13 and 14. Thus, it is movably accommodated and is formed so as to be locked to the locking step portions 23 and 33 of the locking member 21 or the lock member 31 in a state of protruding from the partition wall 12.

That is, as shown in FIGS. 1, 2 and 3, when the locking device is in the locked state, the locking member 21 projects from the case 11 to the inside of the room to move the assembling frame of the inner shoji. It is in the state of being blocked, and the sliding doors inside and outside are locked. As a result, the sliding window can be locked in two places with both the crescents, and crime prevention measures can be improved.

Further, in this state, the movable locking member 16 is pressed by the locking step portion 23 of the locking member 21 to the side surface on the outdoor side and protrudes toward the storage portion 14 side of the lock member 31, The movable locking member 16 engages with the locking step portion 33 of the lock member 31 to hold the lock member 31 in the recessed position where it is recessed from the inner surface of the case 11.

On the other hand, the movable locking member 16 is in a state of being pressed toward the housing portion 13 side of the locking member 21 by the locking step portion 33 of the lock member 31 which is urged toward the indoor side by the spring 32. There is.

Therefore, when unlocking, if the locking member 21 is pushed into the case 11 in the above state, when the locking step portion 23 of the locking member 21 passes through the movable locking member 16 part, the movable locking member 21 moves. The stop member 16 is pressed by the locking step portion 33 of the lock member 31 to project toward the storage portion 13 side, the engagement with the locking step portion 33 of the lock member 31 is released, and the lock member 31 acts by the spring 32. And the movable locking member 16 is held by the side surface of the lock member 31 on the outer side of the locking step portion 33 of the lock member 31 so as to project toward the storage portion 13 side, as shown in FIGS. 4 and 5. Then, the movable locking member 16 and the locking step portion 23 of the locking member 21 are engaged with each other, and the locking member 21 is held at the storage position.

In this state, the inner surfaces of the locking member 21 and the lock member 31 are substantially flush with the inner surface of the case 11, so that there is no obstacle when opening and closing the shoji doors inside and outside. Then, in order to change from this state to the locked state, the lock member 31 is pushed in to release the engagement between the movable locking member 16 and the locking stepped portion 23 of the locking member 21, and the locking member 21 is operated by the spring 22. Then, it can be made to protrude to the inside of the room and brought into the above-mentioned locked state.

As described above, the lock member 31 can be unlocked by pushing the lock member 31 and the lock member 21 can be unlocked by pushing the lock member 21. Therefore, the lock and unlock can be performed by an extremely simple operation.

In order to manufacture the locking device, after inserting the locking member 21, the lock member 31 and the movable locking member 16 in the case body 11a, the springs 22 and 32 are pushed in and the back lid 11b is fitted. As shown in FIG. 2, by providing the case main body 11a and the back lid 11b with the concave and convex portions 11d that engage with each other, the assembly can be performed very easily without using screws or the like. The manufacturing cost can be kept low.

[Effect of device]

 As described above, the sliding door locking device of the present invention can be locked and unlocked by a simple operation of pushing the locking member and the locking member by the action of the movable locking member provided in the case. It has a simple structure and can be manufactured with a small number of parts, which not only reduces the manufacturing cost but also improves reliability, and it is easy to attach to a sliding door.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a locking device in a locked state.

FIG. 2 is a vertical sectional view of the same.

FIG. 3 is an overall perspective view of a locking device.

FIG. 4 is a cross-sectional view showing the locking device in an unlocked state.

FIG. 5 is a cross-sectional view showing the main parts of the locking device.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 gazette 2 assembly frame 3 lower frame 4 notch 11 case 11a case body 11b back lid 11c step 11d uneven part 12 partition wall 13, 14 storage part 15 through hole 16 movable locking member 17 collar piece 21 locking member 22 Spring 23 Locking Step 31 Locking Member 32 Spring 33 Locking Step

Claims (1)

[Scope of utility model registration request] 1. A locking device of a sliding door for locking the sliding door by a locking member that is provided in the vicinity of a combination frame of the sliding door and that appears in and out of the room, and a case fixed to a lateral frame end of the sliding door. A lock member and a lock member respectively housed in a pair of storage parts defined by partition walls provided in the case, a spring for urging the lock member and the lock member toward the indoor side, and the partition wall. The locking member has a movable locking member larger than the thickness of the partition wall housed in the through hole, and the locking member has a storage position in which the inner surface of the locking member is substantially flush with the inner surface of the case, and a locking member protruding from the inner surface of the case. The lock member is stored in the storage portion so as to be movable between the position and the lock member,
The interior surface of the case is movably housed in the storage part between a position in which the interior surface is substantially flush with the case interior surface and a position in which the interior surface of the case is retracted into the storage part, and the opposing surfaces of the locking member and the lock member. The movable locking member is pushed by a side surface on the outdoor side of the locking step of the locking member when the locking member is pushed into the storage position. When the locking member is pushed into the retracted position, the locking member protrudes from the through hole to the locking member side, and the locking member is moved to hold the locking member in the storage position by locking the locking step portion on the side surface of the locking member. The locking member is pressed by the side surface on the outdoor side of the locking step portion to project from the through hole to the lock member side, and the locking member is held in the retracted position by engaging with the step portion provided on the locking member side surface. Moveable Locking device of the sliding door, characterized in that the.