Door lock

Abstract

To provide a sliding door lock capable of being installed even when a position of a storage space for the sliding door lock provided on a sliding door is misaligned in a vertical direction.SOLUTION: A door end lock 1 comprises an engaging member 7; an operation lever 8a or a cylinder lock 8b, the engaging member 7 taking a locking attitude and an unlocking attitude by operation of the operation lever 8a or the cylinder lock 8b; and a connection member 4 for transmitting power between the engaging member 7 and the operation lever 8a or the cylinder lock 8b. The connection member 4 includes an engaging member side connection member 4a provided on the engaging member 7 side, and an operation member side connection member 4b provided on the operation lever 8a side. The engaging member side connection member 4a and the operation member side connection member 4b are detachably coupled, and a coupling attitude of the engaging member side connection member 4a and the operation member side connection member 4b can be changed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a door end lock that is attached to a sliding door. [Background technology]

[0002] A sliding door lock that locks a sliding door has a sickle-shaped engaging member that enters and engages with a recess (strike) provided in the door stop, and an operating member that operates the engaging member. The operating members are located on both sides of the sliding door (inside and outside the room), and the engaging members are provided on the end faces of the sliding door. By operating the operating member, the engaging member can be extended from the end face of the sliding door or retracted into the sliding door from the end face.

[0003] Then, by operating the operating member and engaging the engaging member with the recess in the door stop, the sliding door is locked and prevented from opening. Such a sliding door lock is disclosed, for example, in Patent Document 1. A conventional sliding door lock such as that disclosed in Patent Document 1 is housed and arranged inside the sliding door, and has an excellent aesthetic appearance. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4580287 Summary of the Invention [Problem to be solved by the invention]

[0005] In order to attach a sliding door lock to a sliding door, it is of course necessary to provide a storage space for the sliding door lock. This storage space must be provided in the sliding door so that at least the sickle-shaped engaging member can engage with the recess (strike) on the door stop.

[0006] However, the storage spaces provided in existing sliding doors vary in size and vertical position, so even if the storage space is larger than the sliding door lock and the sliding door lock can be placed in the storage space, it may not be possible to align the sickle-shaped engaging member so that it engages with the recess on the door stop.

[0007] Therefore, an object of the present invention is to provide a sliding door lock that can be attached even if the position of the storage space for the sliding door lock provided in the sliding door is shifted in the vertical direction. [Means for solving the problem]

[0008] The first aspect of the present invention to solve the above problem is a door end lock having an engaging member and an operating member, wherein the engaging member assumes a locked position and an unlocked position by operating the operating member, and further having a connecting member that transmits power between the engaging member and the operating member, wherein the connecting member has an engaging member side connecting member provided on the engaging member side and an operating member side connecting member provided on the operating member side, the engaging member side connecting member and the operating member side connecting member being detachably connected, and the door end lock is characterized in that the connected position of the engaging member side connecting member and the operating member side connecting member can be changed.

[0009] According to this aspect, a connecting member is provided for transmitting power between the engaging member and the operating member, and the connecting member has an engaging member-side connecting member provided on the engaging member side and an operating member-side connecting member provided on the operating member side, and the engaging member-side connecting member and the operating member-side connecting member are detachably coupled. Therefore, when attaching the sliding door lock to the sliding door, the engaging member and the operating member can be handled separately.

[0010] Furthermore, since the connection posture of the engagement member-side connecting member and the operating member-side connecting member can be changed, the relative position of the engagement member and the operating member can be changed by changing the connection posture of both connecting members. In other words, the relative position of the engagement member and the operating member can be changed depending on the shape of the part of the sliding door where the sliding door lock is to be installed. Therefore, the sliding door lock of this aspect is easy to install even on existing sliding doors.

[0011] It is preferable that the device has an engagement member side unit having the engagement member and an operating member side unit having the operating member, and that the engagement member side unit includes the engagement member side connecting member and the operating member side unit includes the operating member side connecting member.

[0012] According to this configuration, there is an engaging member-side unit having an engaging member, and an operating member-side unit having an operating member, and the engaging member-side unit includes an engaging member-side connecting member, and the operating member-side unit includes an operating member-side connecting member, so the operating member and the engaging member can be handled as separate units. In other words, it is easy to connect and integrate the operating member and the engaging member.

[0013] It is preferable that the engagement member side connecting member and the operation member side connecting member are fastened together by screws.

[0014] According to this configuration, the engaging member side connecting member and the operating member side connecting member are fastened together with screws, making attachment and detachment extremely easy.

[0015] The operating member is preferably a slide lever and / or a cylinder lock. [Effects of the Invention]

[0016] The sliding door lock of the present invention is easy to attach to an existing sliding door. [Brief explanation of the drawings]

[0017] [Figure 1] 1A is a perspective view of the door end lock according to this embodiment, seen from the side where it is attached indoors, and FIG. 1B is a perspective view of the door end lock according to this embodiment, seen from the side where it is attached outdoors. [Figure 2] FIG. 2 is an exploded perspective view of the door end lock of FIG. 1. [Figure 3] FIG. 2 is an exploded perspective view of the door end lock of FIG. 1, seen from a different direction than FIG. [Figure 4]4 is a perspective view of the main part of the door end lock of FIG. 1 to FIG. 3, (a) shows the unlocked state, and (b) shows the locked state. [Figure 5] 1 to 3 from a different direction than FIG. 4, (a) shows the unlocked state, and (b) shows the locked state. [Figure 6] 6A and 6B are perspective views showing the main part of the door end lock in FIG. 5 with the lid of the housing that houses the engaging member removed to expose the inside of the housing, where (a) shows the unlocked state and (b) shows the locked state. [Figure 7] (a) is an oblique view showing the state in which the engagement member side unit and the operating member side unit (the main power transmission part) of the door end lock shown in Figure 6 are separated, and (b) and (c) are exploded oblique views of the engagement member side unit of (a), showing the engagement member in the unlocked position and the locked position, respectively. [Figure 8] 1(a) is an exploded perspective view of the operating member side unit of the door end lock, and FIG. 1(b) is an exploded perspective view seen from a different direction from that of FIG. [Figure 9] This is an exploded oblique view showing the state in which the engagement member side unit and operating member side unit of the door end lock are separated, together with the decorative base. [Figure 10] 1(a) is a perspective view showing a state in which the operating member is positioned below the operating member-side connecting member, (b) is a perspective view showing a state in which the operating member and operating member-side connecting member of (a) are turned upside down, (c) is an exploded perspective view showing a state in which the operating member and operating member-side connecting member of (b) have been separated and the operating member-side connecting member and the engagement auxiliary member have been separated, (d) is an exploded perspective view showing a state in which the operating lever of the operating member of (c) has been slid upward relative to the base and the operating member-side connecting member of (c) has been rotated 180 degrees around the vertical axis, (e) is an exploded perspective view showing a state in which the engagement auxiliary member has been engaged with the operating member-side connecting member of (d), and (f) is a perspective view showing a state in which the operating member-side connecting member of (e) and the operating member have been joined together. [Figure 11]10 is an exploded perspective view showing the operating member side unit in a state where the operating member is positioned above the operating member side connecting member, and the state immediately before the engaging member side unit is coupled, together with each decorative seat. FIG. [Figure 12] 12(a) is a perspective view showing the state in which the engagement member side unit and the operation member side unit in FIG. 11 are joined together, and (b) is a perspective view seen from an angle different from that of (a). FIG. [Figure 13] 12A and 12B show the door end lock in the unlocked state configured by combining the engagement member side unit and the operation member side unit in the state of FIG. 11, where (a) and (b) are perspective views seen from different directions. [Figure 14] 14A and 14B show the locked state of the door end lock in FIG. 13, and (a) and (b) are perspective views seen from different directions. [Figure 15] FIG. 1(a) is a perspective view of the main part of a sliding door to which the sliding door lock according to the present embodiment is attached, and FIG. 1(b) is a perspective view of a sliding door different from that shown in FIG. [Figure 16] 15(a) is a perspective view of the sliding door to which the sliding door lock according to the present embodiment is attached, where (a) shows the unlocked state and (b) shows the locked state. [Figure 17] 15(b) is a perspective view of the sliding door lock according to the present embodiment attached to the sliding door of FIG. 15(b), where (a) shows the unlocked state and (b) shows the locked state. DETAILED DESCRIPTION OF THE INVENTION

[0018] The following description will be given with reference to the drawings. The door end lock 1 according to this embodiment shown in Fig. 1(a) and Fig. 1(b) is attached to a sliding door 5 shown in Fig. 15(a) or a sliding door 45 shown in Fig. 15(b) when used.

[0019] The sliding door 5 shown in Figure 15(a) has an end surface 5a, an inner surface 5b, and an outer surface 5c. An end surface opening 50a is provided on the end surface 5a, an indoor side opening 50b is provided on the inner surface 5b, and an outdoor side opening 50c is provided on the outdoor side 5c. The end surface opening 50a, the indoor side opening 50b, and the outdoor side opening 50c are connected inside the sliding door 5, and an accommodation space 10 is formed inside the sliding door 5. In other words, the end surface opening 50a, the indoor side opening 50b, and the outdoor side opening 50c are openings provided on three sides of the accommodation space 10. In the sliding door 5, the indoor side opening 50b and the outdoor side opening 50c are provided in positions biased downward relative to the end surface opening 50a.

[0020] 15(b) has an end surface 45a, an inner surface 45b, and an outer surface 45c. An end surface opening 60a is provided on the end surface 45a, an indoor-side opening 60b is provided on the inner surface 45b, and an outdoor-side opening 60c is provided on the outdoor-side opening 45c. The end surface opening 60a, the indoor-side opening 60b, and the outdoor-side opening 60c are connected inside the sliding door 45, forming a storage space 70 inside the sliding door 45. In other words, the end surface opening 60a, the indoor-side opening 60b, and the outdoor-side opening 60c are openings provided on three sides of the storage space 70. In the sliding door 45, the indoor-side opening 60b and the outdoor-side opening 60c are positioned upward relative to the end surface opening 60a. In other words, the storage space 70 of the sliding door 45 has a different shape from the storage space 10 of the sliding door 5.

[0021] The sizes of the end opening 50a, indoor opening 50b and outdoor opening 50c of the sliding door 5 in Figure 15(a) vary, but in this embodiment, they are the same as the sizes of the end opening 60a, indoor opening 60b and outdoor opening 60c of the sliding door 45 in Figure 15(b).

[0022] That is, although the size of each opening is the same in sliding door 5 and sliding door 45, the height positions of the indoor opening 50b and the outdoor opening 50c relative to the end face opening 50a of sliding door 5 are different from the height positions of the indoor opening 60b and the outdoor opening 60c relative to the end face opening 60a of sliding door 45.

[0023] As shown in Figures 1(a), 1(b), 2, and 3, the door lock 1 of this embodiment has an engagement member side unit 2, an operating member side unit 3, an indoor decorative member 11, an outdoor decorative member 12, and a front unit member 13.

[0024] As shown in FIGS. 4 to 7 (particularly FIG. 7), the engaging member side unit 2 includes an engaging member side connecting member 4a, a pressing member 14, an engaging member 7, a housing 9, and a trigger 15.

[0025] As shown in FIG. 7, the engaging member side connecting member 4a is a plate-shaped member, and has screw holes 16a and 16b and a tip end 16c.

[0026] The pressing member 14 has a base 14a and protruding portions 14b and 14c. The protruding portions 14b and 14c are spaced apart and parallel to each other, and are integrated via the base 14a. That is, the pressing member 14 has a substantially U-shape. The base 14a is provided with a mounting hole 17. The protruding portions 14b and 14c have the same size and shape, and each is provided with an engaging recess 18.

[0027] The tip 16c of the engaging member-side connecting member 4a passes through the mounting hole 17 of the base 14a. The tip 16c is disposed between the protruding portions 14b, 14c. Two common pins 19a, 19b pass through the protruding portions 14b, 14c and the tip 16c, preventing relative movement between the engaging member-side connecting member 4a and the pressing member 14. In other words, the engaging member-side connecting member 4a and the pressing member 14 are integrated.

[0028] As shown in FIG. 7(b), the engaging member 7 has a base portion 7a and an engaging portion 7b. The base 7a is provided with a through hole through which the rotation shaft 20 passes and an elongated hole 23 through which the swing shaft 22 passes. Both ends of the rotation shaft 20 are supported by a housing 9 (main body 9a, lid 9b) described below. Both ends of the swing shaft 22 are engaged with the housing 9. The engagement member 7 is rotatable around the rotation shaft 20. The base portion 7a and the engaging portion 7b are continuous, and an engaging recess 21 is formed between them. The formation of the engagement recess 21 gives the engagement member 7 a sickle structure.

[0029] The housing 9 has a main body 9a and a cover 9b. The main body 9a is a part that occupies the majority of the housing 9, separating three of the four sides, and the lid 9b is a part that closes the remaining open side of the main body 9a. When the lid 9b is attached to the main body 9a, the housing 9 is enclosed on all four sides.

[0030] The main body 9a is provided with an opening 24. A support hole 25 for supporting the rotation shaft 20 and an elongated hole 26 for engaging the swing shaft 22 are provided in the main body 9a at a portion parallel to the lid body 9b and in the lid body 9b. The elongated hole 26 extends in a direction intersecting with the elongated hole 23 of the engaging member 7 through which the rotation shaft 20 is inserted.

[0031] When the engaging member 7 rotates around the rotation shaft 20, the swing shaft 22 moves along both the elongated hole 23 on the engaging member 7 side and the elongated hole 26 on the housing 9 side. As shown in FIG. 7(a), a step 26a is provided at the bottom end of the elongated hole 26. When the swing shaft 22 reaches the bottom end of the elongated hole 26, the swing shaft 22 engages with the step 26a. Therefore, a slight resistance force acts when the swing shaft 22 disengages from the step 26a.

[0032] When the engaging member 7 rotates around the rotation axis 20, the engaging portion 7b and the engaging recess 21 of the engaging member 7 are exposed to the outside through the opening 24 of the housing 9, as shown in Figure 7(c). When the engaging member 7 rotates in the opposite direction, the engaging portion 7b and the engaging recess 21 move into the housing 9 (main body 9a).

[0033] As shown in FIG. 7(a), the housing 9 can accommodate the pressing member 14. The housing 9 (main body 9a) has a notch 27 on the surface facing the opening 24. The pressing member 14 is accommodated within the housing 9, but the engaging member-side connecting member 4a integrated with the pressing member 14 is exposed to the outside of the housing 9 through the notch 27. That is, as shown in FIG. 7(a), the screw holes 16a, 16b of the engaging member-side connecting member 4a are exposed to the outside of the housing 9. The vertical length of the notch 27 is longer than the vertical length of the engaging member-side connecting member 4a.

[0034] The pressing member 14 can reciprocate within a predetermined range in the vertical direction within the housing 9. Furthermore, a swing shaft 22 is engaged with the engaging recess 18 of the pressing member 14. When the pressing member 14 moves up and down, the swing shaft 22 is pressed by the engaging recess 18 and moves up and down together with the pressing member 14.

[0035] A trigger 15 is provided on the housing 9. The trigger 15 is provided above the pressing member 14 and has an abutment portion 15a biased by a compression spring. As shown in FIG. 16(a), the abutment portion 15a protrudes from the end surface 5a of the sliding door 5, and when the sliding door 5 is closed, the end surface 5a of the sliding door 5 abuts against a door stop (not shown). This activates the trigger 15. The trigger 15 has a locking function that prevents the pressing member 14 from moving unintentionally and causing the engaging member 7 to protrude. When the abutment portion 15a is pressed, this lock is released, allowing the pressing member 14 to move.

[0036] The housing 9 is also provided with holes 59a and 59b for fixing the engagement member side unit 2 to the front unit member 13. The holes 59a and 59b may be screw holes, but in this embodiment they are holes for rivets.

[0037] Next, the operation member side unit 3 will be described. As shown in FIGS. 7 and 8, the operating member side unit 3 has an operating member side connecting member 4b, a slide member 35, and a cylinder lock 8b.

[0038] The operating member-side connecting member 4b is a substantially rectangular plate-like member that has through holes 36a and 36b near one end in the longitudinal direction as viewed in Figure 8(a) and has an opening 32, which is a rectangular through hole, near the other end. Engagement holes 64a and 64b are provided above and below opening 32. An opening 33, which is a through hole, is provided near the center of the operating member-side connecting member 4b.

[0039] An engagement assisting member 34 is attached to the opening 32 . The engagement auxiliary member 34 is a member having a rectangular frame structure. The engagement auxiliary member 34 forms a frame that is larger than the opening 32, and engagement walls 65a, 65b are provided near both the left and right sides of the engagement auxiliary member 34. The engagement walls 65a, 65b exactly match the left and right width of the opening 32, and can be inserted along the inner walls of the opening 32 on both the left and right sides. In addition, engagement claws 66a, 66b are provided on both the top and bottom sides of the engagement auxiliary member 34. The engagement claws 66a, 66b face each other and are parallel to each other, and extend in the same direction as the engagement walls 65a, 65b.

[0040] The tip portions of the engaging claws 66a, 66b are hook-shaped on the opposite (outer) side from the opposing side. The engaging claws 66a, 66b have some elasticity, and the distance between their tips can be changed by applying an external force.

[0041] As shown in Fig. 5, the engagement claws 66a, 66b can be inserted into and engaged with the upper and lower engagement holes 64a, 64b of the opening 32. When the engagement claws 66a, 66b engage (hook) with the edges of the engagement holes 64a, 64b, the engagement auxiliary member 34 is fixed to the operating-member-side connecting member 4b. In addition, by applying an external force to narrow the gap between the tips of the engagement claws 66a, 66b, the engagement claws 66a, 66b can be released from the engagement holes 64a, 64b. In other words, the engagement auxiliary member 34 is detachable from the operating-member-side connecting member 4b.

[0042] The engagement auxiliary member 34 is used when the thickness of the door (sliding door 5) is relatively large, and has the function of artificially increasing the thickness of the opening 32. In other words, when the thickness of the door (sliding door 5) is relatively small, the engagement auxiliary member 34 is omitted. The opening 33 also forms a space for arranging members for connecting and fixing the interior decorative member 11 and the exterior decorative member 12 to each other, which will be described later.

[0043] In this embodiment, in order to accommodate the door end lock 1 in the storage space 10 shown in Figure 15(a) or the storage space 70 shown in Figure 15(b), and to make the door end lock 1 as compact as possible, the engagement auxiliary member 34 is made detachable from the operating member side connecting member 4b, and is configured so that the engagement auxiliary member 34 can be attached from either the front or back of the operating member side connecting member 4b.

[0044] The slide member 35 has a base portion 35a, an operating lever 8a, a rack portion 29, and an engagement portion 31. The base portion 35a is a portion that constitutes the main body of the slide member 35.

[0045] The operating lever 8a is a small plate-like piece having an upper surface 37a and a lower surface 37b, and is provided perpendicular to the base 35a. The operating lever 8a functions as a slide lever that is slid to unlock or lock the door end lock 1.

[0046] Engagement portions 31a and 31b are provided on the base 35a at a location opposite the operating lever 8a. The engagement portions 31a and 31b are aligned vertically and form protruding pieces that protrude on the side opposite the operating lever 8a. The engagement portions 31a and 31b fit perfectly into the opening 32.

[0047] The rack portion 29 may be a normal rack (a straight flat plate with teeth cut into it), but in this embodiment, a structure is adopted in which a plurality of engagement holes 29a are arranged in the vertical direction as viewed in FIG. 8(a). By configuring the rack portion 29 in this manner, the distance to the pinion 28 (described below) can be narrowed, thereby saving space. The rack portion 29 is provided so as to extend below the base portion 35a as viewed in FIG. 8(a). In other words, the rack portion 29 and the operating lever 8a are integrated via the base portion 35a.

[0048] The cylinder lock 8b is attached to a cylinder lock support portion 42 of the exterior decorative member 12, which will be described later. The cylinder lock 8b has an output shaft 38 and a keyhole 39. When a key (not shown) is inserted into the keyhole 39 and turned, the output shaft 38 can be rotated.

[0049] The output shaft 38 passes through the insertion opening 40b of the support member 30. The pinion 28 is attached to the output shaft 38. That is, the pinion 28 has an attachment hole 28a (FIG. 8(a)), and the output shaft 38 is inserted into and engaged with the attachment hole 28a, so that the pinion 28 and the output shaft 38 are integrated together. Therefore, the pinion 28 rotates integrally with the output shaft 38. Also, the rack portion 29 (engagement hole 29a) is engaged with the pinion 28. That is, when the pinion 28 rotates, the rack portion 29 (slide member 35) moves up and down.

[0050] The support member 30 is disposed between the indoor-side decorative member 11 and the outdoor-side decorative member 12, and between the slide member 35 and the operating-member-side connecting member 4b. The support member 30 supports the indoor-side decorative member 11 and the outdoor-side decorative member 12, as well as the slide member 35 and the operating-member-side connecting member 4b.

[0051] As shown in Figures 8(a) and 8(b), the support member 30 is a long, thin plate-like member with a step 30a provided midway along the length. An opening 40a is provided above the step 30a in the support member 30. The opening 40a is an elongated hole that is long in the vertical direction as viewed in Figure 8(a).

[0052] The engaging portion 31 of the slide member 35 is inserted into the opening 40a of the support member 30. The engaging portions 31a and 31b of the operating lever 8a pass through the opening 40a and engage with the opening 32 of the operating member-side connecting member 4b. This allows the slide member 35 (operating lever 8a) and the operating member-side connecting member 4b to move together in the up and down direction.

[0053] Furthermore, the engagement portions 31a, 31b are restricted from moving in the left-right direction by the opening 40a. Furthermore, the engagement portions 31a, 31b are movable up and down along the opening 40a. That is, the slide member 35 (operation lever 8a) and the operation member side connecting member 4b are movable up and down relative to the support member 30 (indoor-side decorative member 11).

[0054] Additionally, an insertion opening 40b is provided in the support member 30 below the step portion 30a, through which the output shaft 38 of the cylinder lock 8b is inserted. A pinion 28 is attached to the output shaft 38 inserted through the insertion opening 40b. The pinion 28 rotates integrally with the output shaft 38. As shown in FIG. 9, the cylinder lock 8b is attached to a cylinder lock support portion 42 of the exterior decorative member 12, which will be described later. Therefore, the position of the cylinder lock 8b relative to the support member 30 is fixed.

[0055] The slide member 35 and the cylinder lock 8b are arranged on opposite sides of the support member 30, with the output shaft 38 of the cylinder lock 8b passing through the insertion opening 40b and the engagement portions 31a, 31b of the slide member 35 passing through the opening 40a.

[0056] The support member 30 has a step portion 30a, which allows the slide member 35 and pinion 28, which are arranged on both sides of the support member 30, and the cylinder lock 8b and operating member side connecting member 4b to be arranged efficiently without any unnecessary gaps. Specifically, as seen in Figures 4 to 6, the operating member side connecting member 4b is arranged in the space above the cylinder lock support portion 42. This allows for the space occupied by the door end lock 1 to be saved.

[0057] The rack portion 29 (engagement hole 29a) is engaged with the pinion 28. Therefore, when the pinion 28 rotates, the slide member 35 (operating lever 8a) moves up and down.

[0058] The engaging member side unit 2 and the operating member side unit 3 are integrated by connecting the engaging member side connecting member 4a and the operating member side connecting member 4b, and constitute the main part 1a of the door end lock 1. That is, as shown in Figure 7(a), common screws 6a and 6b are inserted through the through holes 36a and 36b of the operating member side connecting member 4b and screwed into the screw holes 16a and 16b of the engaging member side connecting member 4a. In this way, the engaging member side unit 2 and the operating member side unit 3 are integrated, as shown in Figures 4(a), 4(b), 5(a), and 5(b).

[0059] The main part 1a of the door end lock 1 has the structure described above. Next, the interior decorative member 11, the exterior decorative member 12, and the front unit member 13 will be described.

[0060] As shown in Figure 16(a), the indoor-side decorative member 11 is a member that constitutes a decorative base that is placed on the interior surface 5b of the sliding door 5 on the indoor side. The indoor-side decorative member 11 has an insertion opening 41 through which the operating lever 8a is inserted. A pull tab 43 is formed around the insertion opening 41. The pull tab 43 is a recess (indentation) provided on the surface of the indoor-side decorative member 11. In other words, the insertion opening 41 is provided inside the recessed pull tab 43. The pull tab 43 is a recess that can be inserted and hooked by the hand when operating the sliding door 5 to open or close.

[0061] The indoor-side decorative member 11 has holes 62a, 62b (Fig. 9) for inserting the fixing screws 55a, 55b, and a hole 63 (Fig. 9) for inserting the mounting screw 56. In other words, the indoor-side decorative member 11 is integrated with the outdoor-side decorative member 12 (described below) by the fixing screws 55a, 55b. The indoor-side decorative member 11 is also attached to the inner surface 5b of the sliding door 5 by the mounting screw 56. Furthermore, the indoor-side decorative member 11 has the function of supporting each part of the engagement member side unit 2 and the operating member side unit 3.

[0062] As shown in Figures 1(b), 2, and 3, the exterior decorative member 12 is provided with a cylinder lock support part 42 that supports the cylinder lock 8b. The cylinder lock support part 42 has an opening 42a (Figure 1(b)) that exposes the keyhole 39 of the cylinder lock 8b to the outside. In addition, a pull tab 44 is provided above the cylinder lock support part 42. The pull tab 44 is a recess that can be inserted and hooked by the hand when opening or closing the sliding door 5.

[0063] The exterior decorative member 12 is provided with cylindrical female screw portions 12a, 12b that extend toward the opposing interior decorative member 11. As shown in Fig. 3, the female screw portions 12a, 12b are portions that threadably engage with fixing screws 55a, 55b that are inserted into the interior decorative member 11.

[0064] The front unit member 13 has a decorative plate 51 and a plurality of adjustment plates 52 . The decorative panel 51 is a member that is disposed so as to be flush with the end surface 5a of the sliding door 5 in FIG. 15(a) and the end surface 45a of the sliding door 45 in FIG. 15(b).

[0065] The adjustment plates 52 are provided to make the distance from the decorative panel 51 to the indoor-side decorative member 11 and the outdoor-side decorative member 12 equal to (or approximate) the distance from the end-face opening 50a to the indoor-side opening 50b and the outdoor-side opening 50c shown in Figure 15(a). In other words, the distance from the decorative panel 51 to the indoor-side decorative member 11 and the outdoor-side decorative member 12 is adjusted by the number of adjustment plates 52.

[0066] The decorative plate 51 and each adjustment plate 52 have an opening 47 through which the engagement member 7 (engagement portion 7b) protrudes and an opening 48 through which the trigger 15 (contact portion 15a) protrudes. The decorative plate 51 and each adjustment plate 52 also have through holes 53a and 53b through which screws 49a and 49b pass. The through hole 53a is an elongated hole that is long in the vertical direction. As shown in Figures 16(a) and 16(b), the front unit member 13 is fixed to the sliding door 5 by the screws 49a and 49b.

[0067] Furthermore, the front unit member 13 (decorative plate 51, each adjustment plate 52) is provided with rivet holes 61a, 61b corresponding to the holes 59a, 59b in the housing 9 of the engagement member side unit 2. That is, the engagement member side unit 2 is fixed to the front unit member 13 with rivets via the holes 59a, 59b and the rivet holes 61a, 61b.

[0068] The door lock 1 has the above-described configuration. Next, the operation of the main part 1a will be described with reference to FIGS. Figures 4(a), 5(a), and 6(a) show the state of the main part 1a when unlocked, and Figures 4(b), 5(b), and 6(b) show the state of the main part 1a when locked.

[0069] First, we will explain how to change the door end lock 1 (main part 1a) from a locked state to an unlocked state. That is, we will explain how to change the door end lock 1 (main part 1a) from the locked state shown in Figures 4(b), 5(b), and 6(b) to the unlocked state shown in Figures 4(a), 5(a), and 6(a).

[0070] As shown by arrow A1 in Figures 4(a), 5(a), and 6(a), when the operating lever 8a slides upward relative to the support member 30 (integrated with the interior decorative member 11), the operating member side connecting member 4b, the engagement member side connecting member 4a, and the pressing member 14, which are integrated with the operating lever 8a, also move upward.

[0071] When the pressing member 14 moves upward, the swing shaft 22 engaged with the engagement recess 18 of the pressing member 14 also moves upward as indicated by arrow A2. The swing shaft 22 moves upward along the elongated hole 26 of the housing 9. Here, when the swing shaft 22 shown in FIG. 7(c) moves upward relative to the housing 9 as indicated by arrow A3, the engagement member 7, through which the swing shaft 22 penetrates the elongated hole 23, rotates around the rotation axis 20 as indicated by arrow A3. That is, the engagement member 7 changes its position from the protruding position shown in FIG. 7(c) to the retracted position shown in FIG. 7(b). At that time, the swing shaft 22 moves upward along the elongated hole 23 of the engagement member 7. As a result, the engagement member 7 assumes a retracted position in which it enters the housing 9 as indicated by arrow A3 in FIGS. 4(a), 5(a), and 6(a), and enters an unlocked state.

[0072] Furthermore, when a key (not shown) is inserted into the keyhole 39 of the cylinder lock 8b shown in Figures 5(a) and 6(a) and the cylinder lock 8b is rotated as shown by arrow A4, the pinion 28 fixed to the output shaft 38 rotates. Then, the rack portion 29 engaged with the pinion 28 moves upward as shown by arrow A5. The rack portion 29 is integrated with the operating lever 8a, and the direction (upward) and size (travel distance) of the arrows A5 and A1 match.

[0073] That is, by operating the cylinder lock 8b, the engagement member 7 in the locked state can be set to the unlocked state, in the same way as by operating the operating lever 8a.

[0074] Next, we will explain the case where the door end lock 1 (main part 1a) in the unlocked state is changed to the locked state. That is, we will explain the case where the door end lock 1 (main part 1a) changes from the unlocked state shown in Figures 4(a), 5(a), and 6(a) to the locked state shown in Figures 4(b), 5(b), and 6(b).

[0075] As shown by arrow B1 in Figures 4(b), 5(b), and 6(b), when the operating lever 8a slides downward relative to the support member 30 (integrated with the interior decorative member 11), the operating member side connecting member 4b, the engagement member side connecting member 4a, and the pressing member 14, which are integrated with the operating lever 8a, also move downward.

[0076] When the pressing member 14 moves downward, the swing shaft 22 engaged with the engagement recess 18 of the pressing member 14 also moves downward as indicated by arrow B2. The swing shaft 22 moves downward along the elongated hole 26 of the housing 9. Here, when the swing shaft 22 shown in FIG. 7(b) moves downward relative to the housing 9 as indicated by arrow B3, the engagement member 7, through which the swing shaft 22 penetrates the elongated hole 23, rotates around the rotation axis 20 as indicated by arrow B3. That is, the engagement member 7 changes its position from the retracted position shown in FIG. 7(b) to the protruding position shown in FIG. 7(c). At that time, the swing shaft 22 moves downward along the elongated hole 23 of the engagement member 7. As a result, the engagement member 7 assumes a protruding position in which it protrudes from the housing 9 as indicated by arrow B3 in FIGS. 4(b), 5(b), and 6(b), and enters a locked state.

[0077] Furthermore, when a key (not shown) is inserted into the keyhole 39 of the cylinder lock 8b shown in Figures 5(b) and 6(b) and the cylinder lock 8b is rotated as shown by arrow B4, the pinion 28 fixed to the output shaft 38 rotates. Then, the rack portion 29 engaged with the pinion 28 moves downward as shown by arrow B5. The rack portion 29 is integrated with the operating lever 8a, and the direction (downward) and size (travel distance) of the arrows B5 and B1 match.

[0078] That is, by operating the cylinder lock 8b, the engaging member 7 in the unlocked state can be put into the locked state, in the same way as by operating the operating lever 8a.

[0079] Next, a case where the door end lock 1 described above is attached to a sliding door 5 (FIG. 15(a)) and a sliding door 45 (FIG. 15(b)) will be described.

[0080] First, the case where the door end lock 1 is attached to the sliding door 5 shown in FIG. 15(a) will be described. 2 and 3, the engaging member side unit 2 and the operating member side unit 3 are fixed with screws 6a and 6b. That is, the engaging member side unit 2 and the operating member side unit 3 are fixed with the operating lever 8a and cylinder lock 8b (operating member) positioned below the engaging member 7.

[0081] Next, the main part 1a of the door end lock 1 (the engagement member side unit 2 and the operating member side unit 3) is moved by sliding the operating lever 8a upward relative to the support member 30. Also, the keyhole 39 of the cylinder lock 8b is kept vertical. In other words, the operating lever 8a and cylinder lock 8b (operating member) are set to the unlocked state.

[0082] Then, the pinion 28 is engaged with the rack portion 29, and the output shaft 38 of the cylinder lock 8b is inserted into the opening 40b of the support member 30, and the pinion 28 is attached to the output shaft 38. Furthermore, the fixing screws 55a, 55b inserted from the indoor decorative member 11 are screwed into the female threaded portions 12a, 12b of the outdoor decorative member 12, thereby fixing the indoor decorative member 11 and the outdoor decorative member 12 together. At this time, the main portion 1a is positioned between the indoor decorative member 11 and the outdoor decorative member 12.

[0083] The operating lever 8a is inserted through an insertion opening 41 of the interior decorative member 11, and is located near the upper end of the insertion opening 41 as shown in FIG. 1(a).

[0084] Furthermore, the front unit member 13 is fixed to the housing 9 of the engaging member side unit 2. That is, the rivet holes 61a, 61b of the front unit member 13 are aligned with the holes 59a, 59b of the housing 9, and the two are fixed together with rivets. The opening 24 in which the engaging member 7 is provided is aligned with the opening 47 of the front unit member 13, and the engaging member 7 can protrude from the opening 47. Also, the trigger 15 (contact portion 15a) of the engagement member side unit 2 is inserted through the opening 48 of the front unit member 13 and protrudes from the opening 48.

[0085] The above components are assembled in the storage space 10 shown in Figure 15(a). As a result, as shown in Figure 16(a), the front unit member 13 is placed in the end opening 50a of the sliding door 5, the indoor decorative member 11 is placed in the indoor opening 50b, and the outdoor decorative member 12 is placed in the outdoor opening 50c.

[0086] The front unit member 13 is fixed to the sliding door 5 (end surface 5a) with screws 49a and 49b. The interior decorative member 11 is fixed to the sliding door 5 (inner surface 5b) with mounting screws 56. In other words, the components of the door end lock 1 are connected to each other within the storage space 10 of the sliding door 5 and are also firmly fixed to the sliding door 5.

[0087] The door end lock 1 shown in Figure 16(a) is in an unlocked state with the operating lever 8a positioned at the top end of the insertion opening 41 and the engaging member 7 retracted into the sliding door 5. In this state, when the operating lever 8a is pushed down along the insertion opening 41, the engaging member 7 protrudes from the opening 47, as shown in Figure 16(b), and the door end lock 1 is in a locked state.

[0088] Specifically, when the open sliding door 5 slides in the closing direction, the trigger 15 (contact portion 15a) first contacts the door stop (not shown). When the sliding door 5 (end surface 5a) contacts the door stop and enters the closed state, the operating lever 8a is pushed down, the engaging member 7 protrudes and engages with the door stop, and the door end lock 1 is locked.

[0089] Furthermore, when the operating lever 8a is pushed up, the engaging member 7 retracts into the sliding door 5, and the door is unlocked as shown in FIG. 16(a).

[0090] Here, the door end lock 1 can also be locked and unlocked by operating the cylinder lock 8b from outside the room with a key (not shown). That is, the pinion 28 attached to the output shaft 38 of the cylinder lock 8b engages with a rack portion 29 that is integral with the operating lever 8a. Therefore, by rotating the cylinder lock 8b, the engaging member 7 can be opened and closed (switched between the locked and unlocked states).

[0091] Next, we will explain the case where the door end lock 1 is attached to a sliding door 45 (Fig. 15(b)) that has a storage space 70 that is different from the storage space 10 of the sliding door 5. Unlike the storage space 10, the storage space 70 has an indoor opening 60b and an outdoor opening 60c located above the end face opening 60a.

[0092] First, the door lock 1 in the state shown in Figures 1(a) and 1(b) is disassembled into the main part 1a (the engagement member side unit 2 and the operation member side unit 3), the indoor side decorative member 11, the outdoor side decorative member 12, and the front unit member 13, as shown in Figures 2 and 3. Furthermore, as shown in Figure 9, the screws 6a and 6b are removed, and the main part 1a is disassembled into the engagement member side unit 2 and the operation member side unit 3.

[0093] Figure 10(a) is a perspective view showing the operating member side unit 3 excluding the cylinder lock 8b and the pinion 28. The support member 30 is a member fixed to the interior decorative member 11, but for convenience, it is shown together with the slide member 35 in Figure 10(a).

[0094] The engagement member side unit 2 shown in Fig. 10(a) is turned upside down as shown in Fig. 10(b). Then, as shown in Fig. 10(c), it is disassembled into the slide member 35 and the operating member side connecting member 4b. Furthermore, the engagement claws 66a, 66b of the engagement auxiliary member 34 are disengaged from the engagement holes 64a, 64b of the operating member side connecting member 4b, and the engagement auxiliary member 34 is removed from the opening 32 of the operating member side connecting member 4b.

[0095] Next, as shown by arrow C in Fig. 10(d), the slide member 35 (operating lever 8a) is slid upward relative to the support member 30 from the state shown in Fig. 10(c). Also, as shown by arrow D in Fig. 10(d), the operating member side connecting member 4b is rotated 180 degrees around the vertical axis from the state shown in Fig. 10(c). In other words, the operating member side connecting member 4b is turned over.

[0096] Then, as shown in Figure 10(e), the engagement auxiliary member 34 is attached to the opening 32 of the operating member side connecting member 4b, which is turned backward. Furthermore, as shown in Figure 10(f), the engagement portions 31a, 31b (Figure 8(a)) of the operating lever 8a are engaged with the operating member side connecting member 4b (engagement auxiliary member 34), thereby forming the operating member side unit 3 (excluding the cylinder lock 8b and pinion 28).

[0097] An indoor decorative member 11 and an outdoor decorative member 12 shown in Fig. 11 are attached to both sides of the operating member side unit 3 configured as shown in Fig. 10(f). The indoor decorative member 11 and the outdoor decorative member 12 shown in Fig. 11 are in an upside-down position relative to the position shown in Fig. 9.

[0098] As shown in Figure 11, the engagement member side unit 2 and the operating member side unit 3 are coupled. That is, when the engagement member side connecting member 4a and the operating member side connecting member 4b are coupled with the screws 6a and 6b, the state shown in Figures 12(a) and 12(b) is reached. In the state shown in Figures 12(a) and 12(b), an operating lever 8a is positioned above the engagement member 7. That is, by removing the screws 6a and 6b and separating the engagement member side connecting member 4a and the operating member side connecting member 4b, and changing the relative positions of the two, the coupled position of the engagement member side connecting member 4a and the operating member side connecting member 4b can be changed.

[0099] Specifically, the positional relationship between the engaging member side connecting member 4a and the operating member side connecting member 4b differs between the form shown in Figures 2 to 6 and the form shown in Figure 12, and the posture (form) when the two are joined is different.

[0100] When the components shown in Figure 11 are assembled, the door lock 1 shown in Figures 13(a) and 13(b) is formed. In the door lock 1 shown in Figures 13(a) and 13(b), the operating lever 8a and cylinder lock 8b are positioned above the engaging member 7. The door lock 1 shown in Figures 13(a) and 13(b) is in an unlocked state.

[0101] The door end lock 1 in the unlocked state (unlocked position) shown in Figures 13(a) and 13(b) can be put into the locked state (locked position) by pushing down the operating lever 8a, causing the engaging member 7 to protrude, as shown in Figure 14(a). That is, the pressing member 14 (Figure 7(a)) integrated with the operating lever 8a moves up and down, and in conjunction with this, the swing shaft 22 moves up and down, causing the engaging member 7 to rotate around the rotation shaft 20, switching between the locked state and the unlocked state.

[0102] In addition, by inserting a key (not shown) into the keyhole 39 shown in Figure 13(b) and operating the cylinder lock 8b, the engaging member 7 can be set to an unlocked state or a locked state, as shown in Figures 14(a) and 14(b).

[0103] 13(b) and 14(b), the keyhole 39 is rotated 90 degrees, and the rack portion 29 engaged with the rotated pinion 28 moves up and down. As a result, the pressing member 14 (FIG. 7(a)) integrated with the rack portion 29 moves up and down, and accordingly the swing shaft 22 moves up and down, and the engaging member 7 rotates around the rotation shaft 20, switching between the locked state and the unlocked state.

[0104] A door end lock 1 of this type can be attached to the sliding door 45 shown in Figure 15(b). That is, as shown in Figure 17(a), an indoor-side decorative member 11 is attached to the indoor-side opening 60b on the inside surface 45b of the sliding door 45, an outdoor-side decorative member 12 is attached to the outdoor-side opening 60c (Figure 15(b)) on the outside surface 45c, and further a front unit member 13 is attached to the end surface opening 60a on the end surface 45a.

[0105] Like the door end lock 1 attached to the sliding door 5, the door end lock 1 attached to the sliding door 45 can also be placed in a locked state by pushing down the operating lever 8a, causing the engaging member 7 to protrude. In other words, the door end lock 1 is switched between locking and unlocking in the same way; when the operating lever 8a moves downward, it is placed in a locked state, and when the operating lever 8a moves upward, it is placed in an unlocked state.

[0106] The door lock 1 is configured as described above. The door end lock 1 can be installed by changing the combination of the components, regardless of whether the indoor opening 50b (60b) and the outdoor opening 50c (60c) are offset above or below the end opening 50a (60a), as in the sliding door 5 shown in Figure 15(a) and the sliding door 45 shown in Figure 15(b). In other words, the door end lock 1 according to this embodiment is highly versatile.

[0107] In the above, an example was shown in which the operating lever 8a was provided on the indoor side and the cylinder lock 8b (keyhole 39) was provided on the outdoor side, but it is also possible to provide cylinder locks or operating levers on both the indoor and outdoor sides. Even in these cases, by turning the operating member side connecting member 4b upside down relative to the engagement member side connecting member 4a and joining the two connecting members 4a, 4b, it is possible to attach a door-end lock to the sliding door 5 shown in Figure 15(a) or the sliding door 45 shown in Figure 15(b). [Explanation of symbols]

[0108] 1 Door lock 2 Engagement member side unit 3 Operation member side unit 4 Connecting members 4a Engagement member side connecting member 4b Operation member side connecting member 5 Sliding door 6a, 6b screws 7 Engagement member 8a Operating lever (operating member) 8b Cylinder lock (operating member)

Claims

1. It has an engagement member and an operation member, A door end lock in which the engaging member assumes a locked position and an unlocked position by operating the operating member, a connecting member for transmitting power between the engaging member and the operating member; The connecting member includes an engaging member-side connecting member provided on the engaging member side and an operating member-side connecting member provided on the operating member side. an operating member side connecting member provided on the the engagement member side connecting member and the operation member side connecting member are detachably coupled, The connecting posture of the engagement member side connecting member and the operation member side connecting member can be changed. can be, A door lock characterized in that the engagement member side connecting member and the operating member side connecting member are fastened with screws.

2. an engaging member side unit having the engaging member; and an operating member side unit having the operating member, 2. The door lock according to claim 1, wherein the engaging member side unit includes the engaging member side connecting member, and the operating member side unit includes the operating member side connecting member.

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