Sliding door hook lock

Abstract

To provide a sliding door hook lock which can be easily operated, whose interlocking mechanism between an operating part and a hook can be easily configured, and which can be opened / closed from both surface sides of the sliding door.SOLUTION: A sliding door hook lock includes operating units 1A, 1B which are provided on both surface sides of a sliding door D for operation in the vertical direction, mounting parts 2A, 2B to which the operating units 1A, 1B are attached movably in the vertical direction, an interlocking mechanism 3 which converts the vertical movement of the operating units 1A, 1B into a swinging movement, and a case 5 which has a hook 4 which is brought into a swing movement by the interlocking mechanism 3.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a sickle lock for a sliding door, and more particularly to a sickle lock for a sliding door that can be opened and closed from both side surfaces of the sliding door.

Background Art

[0002] Conventionally, as a sickle lock for a sliding door, in order to swing the sickle, as an operation part, there has been proposed and put into practical use one that rotates a thumb turn (see, for example, Patent Document 1) or one that consists of a seesaw switch for selectively pressing two button surfaces (see, for example, Patent Document 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Among the above-mentioned conventional sickle locks for sliding doors, the one that rotates the thumb turn disclosed in Patent Document 1 has a problem that it may be difficult for elderly people, children, etc. to rotate the thumb turn.

[0005] In addition, the one consisting of a seesaw switch disclosed in Patent Document 2 has a problem that it is necessary to expand a small movement obtained by the seesaw switch using a cam mechanism to swing the sickle, and the interlocking mechanism therefor becomes complicated.

[0006] And in any case, it is not possible to perform an opening and closing operation from both side surfaces of the sliding door, and also, the operation part for swinging the sickle and the handle for opening and closing the sliding door are provided separately, so there is a problem in terms of operability.

[0007] In view of the problems of the conventional sickle lock for a sliding door, the present invention aims to provide a sickle lock for a sliding door that can be easily operated, can simply configure the interlocking mechanism between the operating part and the sickle, and can perform opening and closing operations from both side surfaces of the sliding door.

Means for Solving the Problems

[0008] To achieve the above object, the sickle lock for a sliding door of the present invention is a sickle lock for a sliding door that can perform opening and closing operations from both side surfaces of the sliding door, and includes an operating part that is operated in the vertical direction and provided on both side surfaces of the sliding door, an interlocking mechanism that converts the vertical movement of the operating part into a swinging movement, and a sickle that is swung by the interlocking mechanism.

[0009] In this case, the operating part can be configured to also serve as a handle for opening and closing the sliding door.

[0010] Also, by providing a shaft spanned between the operating parts so as to penetrate the interlocking mechanism, the vertical movement of the operating part can be transmitted to the interlocking mechanism.

Effects of the Invention

[0011] According to the sickle lock for a sliding door of the present invention, the operation can be easily performed, the interlocking mechanism between the operating part and the sickle can be simply configured, and the opening and closing operations can be performed from both side surfaces of the sliding door.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0013] Hereinafter, embodiments of the sickle lock for a sliding door of the present invention will be described with reference to the drawings.

[0014] Figs. 1 to 5 show an embodiment of the sickle lock for a sliding door of the present invention. This sickle lock for a sliding door is configured to be able to perform opening and closing operations from both side surfaces of the sliding door D. It includes operation parts 1A and 1B that are operated in the vertical direction and provided on both side surfaces of the sliding door D, attachment parts 2A and 2B that are attached to the operation parts 1A and 1B so as to be movable in the vertical direction, an interlocking mechanism 3 that converts the vertical movement of the operation parts 1A and 1B into a swinging movement, and a case 5 provided with a sickle 4 that is swung by the interlocking mechanism 3.

[0015] In this case, the operating parts 1A and 1B, which are movably attached to the mounting parts 2A and 2B in the vertical direction, have a size that covers and covers the entire surfaces of the mounting parts 2A and 2B, and also serve as handles for opening and closing the sliding door D.

[0016] Between the operating parts 1A and 1B, a shaft 31 is spanned, and by providing this shaft 31 so as to penetrate through the linkage mechanism 3, the vertical movement of the operating parts 1A and 1B is transmitted to a cam plate 32 having cam holes formed in the linkage mechanism 3, and the sickle 4 is caused to swing by the vertical movement of the cam plate 32 of the linkage mechanism 3.

[0017] Next, the procedure for attaching this sliding door sickle lock to the sliding door D will be described. (1) On one surface of the sliding door D, the operating part 1B and the mounting part 2B are arranged in an assembled state using a C-clip 6, and the case 5 is fixed so as to face the end face of the sliding door D on the door tip side. (2) The mounting part 2A is arranged on the other surface of the sliding door D, and the mounting parts 2A and 2B are fixed to the sliding door D by joining the mounting part 2A and the mounting part 2B using a screw 7 so as to sandwich the sliding door D between the mounting parts 2A and 2B. (3) The operating part 1A is attached to the mounting part 2A via the fitting parts 11 and 21 so as to be relatively movable in the vertical direction and non-detachable.

[0018] This sliding door sickle lock can easily perform the switching operation between the locked state and the unlocked state by causing either the operating parts 1A or 1B to move vertically (at this time, the operating parts 1A and 1B are interlocked via the shaft 31 spanned between the operating parts 1A and 1B), causing the sickle 4 to swing via the linkage mechanism 3, and can easily configure the linkage mechanism 3 between the operating parts 1A and 1B and the sickle 4, and can perform the opening and closing operations from both surfaces of the sliding door D.

[0019] In addition, this sliding door sickle lock has good operability because the operating parts 1A and 1B also serve as handles for opening and closing the sliding door D, and has high design because only the operating parts 1A and 1B that also serve as handles appear on the surface of the sliding door D.

[0020] Incidentally, with this sliding door sickle lock, it is possible to determine whether it is in the locked state (in this embodiment, the lower position) or the unlocked state (in this embodiment, the upper position) at the positions of the operating parts 1A and 1B. However, as shown in FIGS. 6 and 7, a display window 12 may be provided in the operating parts 1A and 1B so that it is possible to determine whether it is in the locked state or the unlocked state based on the display in the display window 12. Here, the location where the display window 12 is provided can be any position on the flange part (FIG. 6) or the bottom part of the handle (FIG. 7) of the operating parts 1A and 1B. Also, the display in the display window 12 can be the color of the mounting parts 2A and 2B and the sliding door D visible through the display window 12, or the "open / close" display printed on the mounting parts 2A and 2B and the sliding door D, etc.

[0021] Also, with this sliding door sickle lock, the operating part 1A is attached to the mounting part 2A via the fitting parts 11 and 21 so as to be relatively movable in the vertical direction and non-detachable. Once attached to the sliding door D, it has a structure that cannot be easily removed. However, as shown in FIG. 8, in order to be able to disassemble the sliding door sickle lock, a notch is formed in the case 5 and the cam plate 32 of the interlocking mechanism 3 to avoid the shaft 31 that is spanned between the operating parts 1A and 1B and penetrates the case 5 and the cam plate 32 of the interlocking mechanism 3. In this way, it may be possible to remove only the case 5 (and the cam plate 32 of the interlocking mechanism 3) from the sliding door D. By removing the case 5 from the sliding door D in this way, it becomes possible to operate the fitting part 11 of the operating part 1A using a screwdriver or the like, and the operating part 1A can be detached from the mounting part 2A, and the sliding door sickle lock can be disassembled.

[0022] As described above, the sliding door sickle lock of the present invention has been described based on its embodiments. However, the present invention is not limited to the configurations described in the above embodiments, and its configuration can be appropriately changed without departing from the gist thereof.

Industrial Applicability

[0023] The sickle lock for a sliding door of the present invention can be easily operated, can simply configure the interlocking mechanism between the operating part and the sickle, and can perform opening and closing operations from both side surfaces of the sliding door. Therefore, it can be suitably used for the sickle lock for a sliding door.

Explanation of Signs

[0024] 1A Operating part 1B Operating part 11 Fitting part 2A Mounting part 2B Mounting part 21 Fitting part 3 Interlocking mechanism 31 Shaft 32 Cam plate 4 Sickle 5 Case 6 C-clip 7 Screw

Claims

1. A sickle lock for a sliding door that enables opening and closing operations to be performed from both side surfaces of the sliding door, comprising: an operation part that is operated in the vertical direction and provided on both side surfaces of the sliding door; a linkage mechanism that converts the vertical movement of the operation part into a swinging movement; and a sickle that is swung by the linkage mechanism. The sickle lock for a sliding door is characterized by the above configuration.

2. The sickle lock for a sliding door according to claim 1, wherein the operation part also serves as a handle for opening and closing the sliding door.

3. The sickle lock for a sliding door according to claim 1 or 2, wherein a shaft bridging between the operation parts is provided so as to penetrate the linkage mechanism, thereby transmitting the vertical movement of the operation part to the linkage mechanism.

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