Locking devices and fixtures

Abstract

To provide a locking device capable of improving a design thereof.SOLUTION: A locking device 2 includes: a pedestal fixed to a fixture 1; an operation part 3 that is attached rotatably with respect to the pedestal to lock and unlock the fixture 1 by a rotation operation; and a pedestal cover 4 covering the whole pedestal. The pedestal cover 4 is constituted of two cover members 40. The two cover members 40 are attached to the pedestal slidably with respect to the pedestal, and cover members 40 are configured to switch between a closed state that covers the entire pedestal and an open state where the pedestal is exposed by the slide movement.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to locking devices and fixtures. [Background technology]

[0002] Conventionally, fittings such as windows and doors are equipped with locking devices that can lock and unlock the fittings by rotating a handle via a base fixed to the fittings. Locking devices such as crescent locks and cam latch handles generally have a base fixed to the fittings with screws or the like (see, for example, Patent Document 1). The locking device described in Patent Document 1 has two screw covers that cover the screw parts in addition to the base body to prevent the screws from being exposed and improve the design.

[0003] Crescent locks have an operating handle, and a relatively large load is placed on the base when opening and closing, so the base body is required to have high strength. The screw cover is not required to be as strong because it is not likely to bear a direct load, but it is preferable that it is water resistant to prevent deformation due to moisture such as dew. For this reason, different materials are sometimes used for the base body and the screw cover, which require strength. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 8-28114 Summary of the Invention [Problem to be solved by the invention]

[0005] In the crescent lock described in Patent Document 1, the seam between the base body and the screw cover is visible from the front. In addition, if different materials are used for the base body and the screw cover, when the materials discolor due to aging, the difference in color becomes noticeable, which can impair the design. [Means for solving the problem]

[0006] The present disclosure provides a locking device having a base fixed to a fixture, an operating unit rotatably attached to the base and capable of locking and unlocking the fixture by a rotational operation, and a base cover that covers the entire base, wherein the base cover is made up of two cover members that are slidably attached to the base, and the cover members are configured to be switchable, by the sliding movement, between a closed state in which the entire base is covered and an open state in which the base is exposed. [Brief description of the drawings]

[0007] [Figure 1] FIG. 13 shows a locking device attached to a fixture. [Diagram 2] FIG. [Figure 3A] FIG. [Figure 3B] FIG. [Figure 4] FIG. 13 is a diagram showing the base before the cover member is attached. [Diagram 5] FIG. 4 is a view showing the locking device with the cover member in an open state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] First Embodiment As shown in FIG. 1, the locking device 2 of this embodiment is attached to the frame of two shoji screens 11 and 12 that constitute a fitting 1 such as a window or a door, and is configured to be able to lock and unlock the fitting. As shown in FIG. 2, the locking device 2 has an operation unit 3 for locking and unlocking the fitting 1 by a rotation operation, a base cover 4 that covers the entire base 5, a base 5 that is fixed to the fitting 1, a connecting unit 6 that connects the base 5 and the operation unit 3, and a crescent receiver 7 for locking and unlocking the fitting 1 together with the operation unit 3. In FIG. 1, the operation unit 3, base cover 4, and base 5 of the locking device 2 are fixed to the side of the frame of one shoji screen 11, and the crescent receiver 7 is fixed to the front of the frame of the other shoji screen 12. In FIG. 1 and FIG. 2, the base 5 is covered by the operation unit 3 and the base cover 4 and is not exposed.

[0009] The operating unit 3 has an operating handle 31, a crescent 33 that engages with the crescent receiver 7 to lock the fixture 1, and a sub-lock 34 and locking mechanism 35 that prohibit rotation of the operating handle 31 and the crescent 33. The operating unit 3 can be rotated 180° clockwise from the state shown in Fig. 1 about a rotating shaft 61 (described below). The operating unit 3 is preferably strong since it is repeatedly subjected to a load when the fixture 1 is locked and unlocked or opened and closed. The operating unit 3 is preferably made of nylon containing glass fiber or metal parts, for example.

[0010] The crescent 33 has an arc-like shape as shown in Fig. 2. The crescent receiver 7 is attached to the front side of the shoji screen 12, and has an engagement portion that engages with the crescent 33. In this embodiment, the fitting 1 is a sliding shoji screen. With the shoji screen closed, the operating unit 3 is rotated at the angle shown in Fig. 1, whereby the crescent 33 engages with the crescent receiver 7, restricting the fitting 1 from moving left or right, and locking the shoji screen so that it cannot be opened.

[0011] In the locking device 2 of this embodiment, the base cover 4 is composed of two cover members 40. There is no particular restriction on the material of the cover members 40. The cover members 40 can be composed of, for example, resin, and are preferably water-resistant since they are expected to come into contact with water droplets generated by condensation. As shown in Figs. 3A and 3B, the two cover members 40 have a shape that forms the four sides of a substantially rectangular parallelepiped with an upper surface portion 41, a side surface portion 42, and an end surface portion 43, and can accommodate and cover approximately half of the base 5 inside. As shown in Figs. 1 and 2, the two cover members 40 are butted together and are configured to cover half of the substantially rectangular base 5 each.

[0012] That is, the two cover members 40 are configured to cover the entire base 5 with five faces of the approximately rectangular parallelepiped, one of which is fixed to the shoji screen 11. As a result, as shown in FIG. Locking device 2 In the front and side views of the locking device 2, the base 5 is not visible to the user, and only the cover member 40 is exposed. Therefore, even if the cover member 40 discolors due to aging, there is no difference in color between the cover member 40 and the base 5, improving the design of the locking device 2.

[0013] In this embodiment, the cover member 40 covers the entire base 5. Locking device 2 It is sufficient that the base 5 is covered to an extent that it is not visible when viewed from the front or side. Locking device 2 of side The plan view is from the direction having the sub-block 34 in FIG. Locking device 2 It means to see. Locking device 2 of Positive The plan view is from the direction in which the operating handle 31 is located in FIG. Locking device 2 It means to see.

[0014] In this embodiment, the two cover members 40 are butted against each other at the center of the base, and have a joint. Locking device 2 is hidden by the operation unit 3 and is not exposed in front and side views. Locking device 2 of sideWhen viewed from above, the joint between the two cover members 40 is hidden by the sub-lock 34 and cannot be seen. Locking device 2 of Positive In plan view, the joint between the two cover members 40 is not visible because it is hidden by the operating handle 31, the crescent 33, etc. This improves the design of the locking device 2.

[0015] The two cover members 40 do not necessarily have to be directly butted against each other. Even if there is a gap between the two cover members 40 and the base 5 is partially exposed, the locking device 2 can be side From the outside, it is subblock 34. Positive This is because if the base 5 is hidden by the operating handle 31, the crescent 33, etc., when viewed from above, a part of the base 5 cannot be seen.

[0016] Furthermore, a part of the base 5 may be exposed on the surface of the locking device 2 facing the sliding screen 12. of This is because a portion of the base 5 exposed on the back surface cannot be seen.

[0017] The two cover members 40 may be made of the same material and color as the operation unit 3. This is to unify the appearance and improve the design. Furthermore, the crescent 33 and the sub-block 34 may also be made of the same color.

[0018] The cover member 40 further has a protruding engagement portion 44 formed on the surface of the side surface portion 42 that covers the base 5, and a protruding fitting portion 45 formed on the surface of the end surface portion 43 that covers the base 5. The engagement portion 44 is assembled so as to engage with the groove portion 52 of the base 5, as shown in Figures 4 and 5.

[0019] The cover member 40 can be opened and closed by sliding along the groove portion 52. That is, when the cover member 40 is slid open and closed, the engagement portion 44 engages with the end side engagement portion 53 and the center side engagement portion 54 of the base 5, thereby holding the cover member 40 in an open state and a closed state. The open state is a state in which the base 5 is exposed as shown in Fig. 5, and the closed state is a state in which the entire base 5 is covered as shown in Fig. 2. The fitting portion 45 of the cover member 40 fits into the recessed portion 55 of the base 5 in the closed state, preventing deformation of the base 5.

[0020] The cover member 40 has a recess 46 into which the rotating shaft portion 61 of the connecting portion 6 is inserted when the cover member 40 is attached to the base 5 and closed. This allows the base 5 to be covered up to the side surface where the rotating shaft portion 61 is located, improving the design of the locking device 2.

[0021] The base 5 is composed of a metal back plate member that is fixed to the fitting 1 with screws. The base 5 is fixed to the fitting 1 by fastening with screws through holes 51. The base 5 further has a groove 52 for assembling the cover member 40, and an end side engagement portion 53 and a center side engagement portion 54 are formed in the groove 52.

[0022] The base 5 further has a connecting portion 6 between the two holes 51, which connects the base 5 and the operating portion 3. The connecting portion 6 is configured to have a rotating shaft portion 61, a support portion 62 which is fixed to the base 5 by crimping and supports the rotating shaft portion 61, a handle attachment portion 63 to which the operating handle 31 is attached, and a stopper 64 (not shown) which is disposed on the rear surface of the base 5 and limits the rotation angle of the operating handle 31.

[0023] That is, the approximately rectangular handle attachment portion 63 meshes with the operating handle 31, so that the rotation of the operating handle 31 can be transmitted to the rotating shaft portion 61. Similarly, the other end of the rotating shaft portion 61 meshes with, for example, the approximately rectangular stopper 64, and the stopper 64 rotates in response to the rotation of the rotating shaft portion 61. When a part of the rotated stopper 64 collides with the base 5, further rotation is restricted, and the rotation range of the operating handle 31 is restricted.

[0024] The locking mechanism 35 acts via the sub-lock 34 to restrict the rotation of the generally rectangular handle attachment portion 63 shown in Fig. 4. This locks the rotation of the operating handle 31, preventing small children or the like from rotating the operating handle 31 to lock or unlock the fixture 1.

[0025] The above is a description of the locking device 2 of the present embodiment. The locking device 2 provides the following effects.

[0026] The locking device 2 of this embodiment has a base 5 fixed to the fixture 1, an operation unit 23 rotatably attached to the base 5 and capable of locking and unlocking the fixture 1 by a rotation operation, and a base cover 4 that covers the entire base 5. The base cover 4 is made of two cover members 40, which are attached to the base 5 so as to be slidable, and the cover members 40 are configured to be switchable between a closed state in which the entire base 5 is covered and an open state in which the base 5 is exposed by sliding movement. As a result, the base 5 is not visible to the user, and only the cover members 40 are visible, improving the design.

[0027] The two cover members 40 have a joint that butts together when closed, and the joint is Locking device 2 of side The sensor is disposed at a position where it is hidden by the operation unit 3 in plan view. Locking device 2 of side Since the seam between the two cover members 40 is not visible when viewed from above, the design is further improved.

[0028] The seam further comprises: Locking device 2 of Positive The sensor is disposed at a position where it is shielded by the operation unit 3 when viewed from above. Locking device 2 of Positive Since the seam between the two cover members 40 is not visible even when viewed from above, the design is further improved.

[0029] The fitting 1 is equipped with a locking device 2. This improves the design of the fitting 1 as a whole.

[0030] The locking device of the present embodiment is not limited to the above-mentioned embodiment. For example, it may be applied to a cremone lock or a cam latch handle instead of the crescent lock as in the above-mentioned embodiment. The locking device of the present disclosure may be applied to various fixtures such as a back door or a terrace door. [Explanation of symbols]

[0031] 1... fitting, 2... locking device, 3... operating part, 31... operating handle, 33... crescent, 34... sub-lock, 35... locking mechanism, 4... base cover, 40... cover member, 41... upper surface part, 42... side surface part, 43... end surface part, 44... engagement part, 45... fitting part, 5... base, 51... hole part, 52... groove part, 53... end side engagement part, 54... central side engagement part, 55... recess, 6... connecting part, 61... rotating shaft part, 62... support part, 63... handle mounting part, 64... stopper, 7... crescent receiver

Claims

1. A pedestal fixed to a fitting, An operating portion rotatably attached to the pedestal and capable of locking and unlocking the fitting by a rotation operation, A pedestal cover covering the pedestal, and a locking device having the same, The pedestal cover is composed of two cover members on one end side and the other end side, and a joint where the two cover members abut against each other, or a gap between the two cover members is shielded by the operating portion. Locking device.

2. The joint or the gap is provided on the pedestal center side of the cover member on the one end side and the pedestal center side of the cover member on the other end side. The locking device according to claim 1.

3. The joint or the gap is shielded by a single part in a side view of the locking device. The locking device according to claim 2.

4. A fitting including the locking device according to any one of claims 1 to 3.

5. A pedestal fixed to a fitting, An operating portion rotatably attached to the pedestal and capable of locking and unlocking the fitting by a rotation operation, A pedestal cover covering the pedestal, and a locking device having the same, The pedestal cover has two cover members, The two cover members are slidably attached to the pedestal, and The two cover members are configured to be able to switch between a closed state covering the pedestal and an open state in which the pedestal is exposed by the sliding movement, The two cover members have a joint that abuts against each other in the closed state, The joint is disposed at a position shielded by the operating portion in a front view or a side view of the locking device. Locking device.

6. A fitting including the locking device according to claim 5.

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