Locking device

Abstract

To provide a locking device that improves installation workability.SOLUTION: A locking device comprises a handle that rotates around a shaft, an upper pedestal that has a support base for supporting the handle and extends in a first direction, an attachment screw that extends to one side in an axial direction, a lower pedestal in which an insertion hole through which the attachment screw is inserted in the axial direction is disposed, and a plate that adjusts the axial dimension between an engaging part and the lower pedestal when it is disposed between the upper pedestal and the lower pedestal in the axial direction. The plate has an elongated receiving part that is arranged on one side in a second direction with respect to the insertion hole and extends in the first direction, a central receiving part that extends from the elongated receiving part to the other side in the second direction and overlaps with the support base in the axial direction, an end receiving part that extends from the elongated receiving part to the other side in the second direction at a position that is outside the insertion hole in the first direction, and a guide receiving part that is disposed in the central receiving part via grooves extending in the second direction and extends from the elongated receiving part to the other side in the second direction. The lower pedestal has a projection part that positions the plate in the first direction when the projection part projects to the other side in the axial direction and is inserted into the groove.SELECTED DRAWING: Figure 7

Description

[Technical Field]

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

[0002] There are locking devices such as crescent locks and cremone locks that are opened and closed by rotating a handle with an engaging part. Patent document 1 discloses a crescent lock as a locking device. The locking device is attached to the frame via a base part using a mounting screw.

[0003] When replacing an existing locking device with a different type of interchangeable locking device, it is necessary to adjust the distance from the mounting surface to the locking part. Conventionally, multiple adjustment plates of different thicknesses are prepared, and the plates combined according to the adjustment distance are placed between the base of the locking device and the frame, and then attached to the frame using mounting screws. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Publication number 2-025894 Summary of the Invention [Problem to be solved by the invention]

[0005] When the locking device is attached to the stile by tightening the mounting screws after placing the adjustment plate according to the set adjustment height, the engagement part may not be aligned. In this case, it is necessary to first remove the mounting screws and then replace the adjustment plate, which increases the time and complexity required to install the locking device.

[0006] The present disclosure has been made in consideration of the above points, and aims to provide a locking device that improves installation workability. [Means for solving the problem]

[0007] A first aspect of the present disclosure includes a handle having an engagement portion and rotating about an axis, an upper base having a support base portion located on one side of the axial direction in which the axis extends relative to the handle and rotatably supporting the handle, and extending in a first direction perpendicular to the axial direction, mounting screws arranged on both sides of the support base portion in the first direction, engaging with the upper base from the other side in the axial direction and extending to one side in the axial direction, a lower base located on one side of the upper base in the axial direction, having insertion holes through which the mounting screws are inserted in the axial direction and arranged at intervals in the first direction, and a plate that adjusts the axial dimension of the engagement portion and the lower base when positioned between the upper base and the lower base in the axial direction, wherein the plate is axially oriented relative to the insertion holes. a long-length receiving portion that is arranged on one side of a second direction perpendicular to the first direction and extends in the first direction; a central receiving portion that is located more inward in the first direction than the insertion hole, extends from the long-length receiving portion to the other side in the second direction, and overlaps with the support base portion in the axial direction; end receiving portions that extend from the long-length receiving portion to the other side in the second direction at positions on both sides of the outside of the insertion hole in the first direction; and guide receiving portions that are located more inward in the first direction than the insertion hole and more outward in the first direction than the central receiving portion, each via a groove that extends in the second direction, and extend from the long-length receiving portion to the other side in the second direction, and the lower base has a protrusion that protrudes to the other side in the axial direction and positions the plate in the first direction when inserted into the groove. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a front view of the locking device of the present disclosure attached to a stile. [Figure 2] 1 is a plan view of the locking device of the present disclosure with the screw cover removed, viewed from above. [Figure 3] 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 4] FIG. 2 is a plan view from above of the lower base and plate of the present disclosure. [Figure 5] FIG. 10 is a cross-sectional view of the protrusion perpendicular to the Y direction. [Figure 6] FIG. 10 is a cross-sectional view of the protrusion perpendicular to the Y direction. [Figure 7] 10A and 10B are perspective views showing a procedure for attaching and detaching a plate between an upper base and a lower base. [Figure 8] 10A and 10B are perspective views showing a procedure for attaching and detaching a plate between an upper base and a lower base. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the locking device of the present disclosure will be described below with reference to Figures 1 to 8. The following embodiment shows one aspect of the present disclosure, does not limit the disclosure, and can be modified as desired within the scope of the technical concept of the present disclosure. In the following drawings, the scale and number of components in each structure are different from the actual structure to make each configuration easier to understand.

[0010] As shown in Figure 1, the locking device 1 is attached to the locking frame 2 of the inner sliding door in the sash. The locking device 1 is fixed when screwed to the locking frame 2 using two mounting screws 3. The locking device 1 is a crescent lock.

[0011] The lock device 1 has a crescent body 10 and a plate 50. The crescent body 10 has a handle 11, an engagement portion 12, a shaft 13, an upper base 20, a lower base 30, and a screw cover 40.

[0012] The handle 11 rotates relative to the upper base 20 around the axis 13. The axis 13 extends in the axial direction of the central axis J and protrudes downward from the handle 11. The handle 11 extends in a direction perpendicular to the axial direction. The engagement portion 12 is provided on the handle 11. The engagement portion 12 is crescent-shaped when viewed in the axial direction. When the engagement portion 12 engages with the hook of the outer screen on the sash, it connects the inner screen and the outer screen. When the engagement portion 12 engages with the hook, it holds the sash in a closed position.

[0013] The Z-axis direction, as indicated appropriately in the following figures, is the up-down direction, with the positive side being the "upper side" and the negative side being the "lower side." The central axis J, as indicated appropriately in each figure, is a virtual line parallel to the Z-axis direction and extending in the up-down direction. In the following description, the direction parallel to the up-down direction, which is the axial direction of the central axis J, will simply be referred to as the "axial direction." The "lower side" corresponds to one side in the axial direction. The "upper side" corresponds to the other side in the axial direction. The direction perpendicular to the central axis J and parallel to the long side of the upper base 20 will simply be referred to as the "X direction." The direction perpendicular to the central axis J, on the upper base 20, away from the center of each component is referred to as the outside, and the side toward the center is referred to as the inside. The "X direction" corresponds to the first direction. Within the "X direction," the "+X side" corresponds to one side of the first direction, and the "-X side" corresponds to the other side of the first direction. The "Y direction" corresponds to the second direction. In the "Y direction," the "+Y side" corresponds to one side of the second direction, and the "-Y side" corresponds to the other side of the second direction.

[0014] The above-mentioned vertical direction, upper side, and lower side are simply names used to explain the positional relationship of each part, and the actual positional relationship may be a positional relationship other than the positional relationship indicated by these names.

[0015] 2, the upper base 20 has a rectangular shape extending in the X direction when viewed in the axial direction. The upper base 20 is disposed below the handle 11. The upper base 20 has a support base portion 21, a mounting plate 22, and a first elongated hole portion 27.

[0016] The support base portion 21 is provided in the center of the upper base 20 in the X direction. The support base portion 21 is columnar and protrudes upward. The upper surface of the support base portion 21 rotatably supports the handle 11 from below. The first elongated hole portions 27 are arranged on both sides of the support base portion 21 in the X direction. The first elongated hole portions 27 penetrate the upper base 20 in the axial direction. The first elongated hole portions 27 are elongated holes that extend in the X direction. The mounting screws 3 are inserted into the first elongated hole portions 27 from above.

[0017] The mounting plate 22 is movable in the X direction relative to the upper base 20. The mounting plates 22 are provided on both sides of the support base 21 in the X direction. The mounting plate 22 has a second elongated hole 23 extending in the Y direction. The second elongated hole 23 penetrates the mounting plate 22 in the axial direction. The second elongated hole 23 communicates with the first elongated hole 27. A mounting screw 3 is inserted into the second elongated hole 23 from above. The head of the mounting screw 3 engages with the mounting plate 22 from above. By moving the mounting plate 22 in the X direction relative to the upper base 20, the mounting screw 3 is moved along the first elongated hole 27, and the position of the mounting screw 3 in the X direction can be adjusted. By moving the mounting screw 3 along the second elongated hole 23, the position of the mounting screw 3 in the Y direction can be adjusted.

[0018] The screw covers 40 are detachably attached to both sides in the X direction of the support base portion 21 of the upper base 20. When the screw cover 40 is removed from the upper base 20, the mounting plate 22 and the mounting screws 3 can be exposed. The positions of the exposed mounting screws 3 in the X direction and Y direction can be adjusted via the mounting plate 22. By attaching the screw cover 40 to the upper base 20, the mounting plate 22 and the mounting screws 3 can be covered from above. By covering the mounting plate 22 and the mounting screws 3 from above, the design of the locking device 1 can be improved.

[0019] As shown in Figures 3 and 4, the lower base 30 is located below the upper base 20. The lower base 30 has a bottom wall 31, a side wall 32, an insertion hole 33, and a protrusion 34. The bottom wall 31 is plate-shaped and arranged perpendicular to the axial direction. The bottom wall 31 has an upper surface 31a facing upward. The upper surface 31a is in contact with the plate 50. The side wall 32 extends upward from the side edge of the bottom wall 31. The side wall 32 is provided around the entire periphery of the side edge of the bottom wall 31. The side wall 32 of the lower base 30 surrounds the upper base 20 and the plate 50 from the outside around the entire periphery. Since the side wall 32 surrounds the upper base 20 and the plate 50 from the outside around the entire periphery, discontinuous surfaces such as the cross section of the plate 50 are not visible, which contributes to improving the design.

[0020] The insertion holes 33 penetrate the bottom wall 31 in the axial direction. The insertion holes 33 are rectangular and extend in the X direction when viewed in the axial direction. The insertion holes 33 are arranged at intervals in the X direction. The insertion holes 33 axially face the first elongated hole portions 27 of the upper base 20. The mounting screws 3 that have been inserted through the second elongated hole portions 23 and the first elongated hole portions 27 are inserted into the insertion holes 33. By screwing in the mounting screws 3 whose positions in the X direction and Y direction have been adjusted, the upper base 20, the plate 50, and the lower base 30 can be fixed to the mating frame 2 via the mounting plate 22.

[0021] As shown in Figures 5 and 6, the protrusions 34 protrude upward from the bottom wall 31. Figures 5 and 6 illustrate the X direction as the top-to-bottom direction. Since the protrusions 34 spaced apart in the X direction have the same configuration, the reference numerals of the protrusions 34 located on the +X side are shown in Figures 5 and 6, while the reference numerals of the protrusions 34 located on the -X side are shown in parentheses.

[0022] The protrusions 34 are arranged at intervals in the X direction. The tips of the protrusions 34 are located higher than the upper end of the side wall 32. The protrusions 34 have an inclined portion 34a and a parallel portion 34b. The inclined portion 34a is provided on the +X side of the protrusion 34. The inclined portion 34a inclines in a direction toward the -X side as it moves upward. The -X side of the protrusion 34 may also incline in a direction toward the +X side as it moves upward. The parallel portion 34b is arranged on the +X side of the protrusion 34, closer to the tip than the inclined portion 34a. The parallel portion 34b is parallel to the axial direction. When the axial direction is horizontal, the parallel portion 34b is horizontal.

[0023] As shown in FIG. 3 , the plate 50 is disposed between the upper base 20 and the lower base 30. The plate 50 is a plate with a constant thickness. When disposed between the upper base 20 and the lower base 30, the plate 50 adjusts the axial dimension between the engagement portion 12 and the lower base 30. The plate 50 is compressed by the pressure generated when the upper base 20, the plate 50, and the lower base 30 are fastened to the frame 2 by screwing in the mounting screw 3. The fastening force generated when the mounting screw 3 is screwed in is transmitted from the upper base 20 to the lower base 30 via the plate 50. While one plate 50 is shown in FIG. 3 , multiple plates 50 may be disposed depending on the amount of axial dimension adjustment between the engagement portion 12 and the lower base 30. When multiple plates 50 are disposed, the thicknesses of the plates 50 may be different.

[0024] As shown in FIG. 4, the plate 50 has a long receiving portion 51, a central receiving portion 52, end receiving portions 53 and 54, a guide receiving portion 55, and a through hole 58. The long receiving portion 51 is disposed on the +Y side of the insertion hole 33. The long receiving portion 51 extends linearly along the X direction. The X-direction end of the long receiving portion 51 is positioned further outward in the X direction than the outer side of the insertion hole 33 in the X direction. The long receiving portion 51 receives the fastening force exerted by the screwing of the mounting screw 3 on the +Y side of the bottom wall 31.

[0025] The central receiving portion 52 is located inside the insertion hole 33 in the X direction. The central receiving portion 52 extends from the long receiving portion 51 to the -Y side. The central receiving portion 52 extends on the -Y side up to the -Y side end of the bottom wall 31. The central receiving portion 52 overlaps with the support base portion 21 in the axial direction. The central receiving portion 52 receives the fastening force produced by screwing in the mounting screw 3 in the central region of the bottom wall 31 in the X direction.

[0026] The end receiving portion 53 extends from the +X side end of the long receiving portion 51 to the -Y side. The end receiving portion 53 is located further outward in the X direction than the insertion hole 33 located on the +X side. The end receiving portion 53 receives the fastening force generated by the screwing of the mounting screw 3 along the +X side edge of the bottom wall 31. The end receiving portion 53 has a notch 53A. The notch 53A is recessed from the outside to the inside in the X direction. The notch 53A is provided away from the Y direction end of the end receiving portion 53.

[0027] The end receiving portion 54 extends from the -X side end of the long receiving portion 51 to the -Y side. The end receiving portion 54 is located further outward in the X direction than the insertion hole 33 located on the -X side. The end receiving portion 54 receives the fastening force generated by the screwing of the mounting screw 3 along the -X side edge of the bottom wall 31. The end receiving portion 54 has a notch 54A. The notch 54A is recessed from the outside to the inside in the X direction. The notch 54A is provided away from the Y direction end of the end receiving portion 53.

[0028] The guide receiver 55 is located inward in the X direction from the insertion hole 33. The guide receiver 55 extends from the long receiver 51 to the -Y side. The guide receiver 55 is arranged on both sides outward in the X direction from the central receiver 52, with a groove 56 interposed therebetween. The groove 56 extends in the Y direction and opens on the -Y side. The guide receiver 55 has a guide portion 57 facing the opening of the groove 56. The guide portion 57 is provided at the tip of the guide receiver 55. The guide portion 57 is an inclined surface that slopes outward in the X direction as it approaches the -Y side when viewed in the axial direction. Because the guide receiver 55 has the guide portion 57, the opening of the groove 56 becomes wider as it approaches the -Y side.

[0029] The protrusion 34 is inserted into the groove 56. When the protrusion 34 is inserted into the groove 56, the lower base 30 and the plate 50 are positioned in the X direction. As shown in FIG. 4, when the protrusion 34 is located at the end of the groove 56 on the +Y side, the lower base 30 and the plate 50 are positioned in the Y direction. When the protrusion 34 is inserted into the groove 56 and located at the end on the +Y side, the lower base 30 and the plate 50 are positioned in both the X and Y directions.

[0030] The through-hole 58 passes through the plate 50 in the axial direction. The through-hole 58 is located near the edge of the plate 50 on the +Y side. The through-hole 58 extends from the center of the plate 50 in the X direction to the outside in the X direction. The through-hole 58 has a rectangular shape extending in the X direction when viewed in the axial direction.

[0031] In the lock device 1 configured as described above, the procedure for attaching the plate 50 between the upper base 20 and the lower base 30 and the procedure for removing the plate 50 between the upper base 20 and the lower base 30 will be described. In the following description, the X direction will be referred to as the top-to-bottom direction, the Y direction will be referred to as the horizontal direction, and the +X side will be referred to as the top side and the -X side will be referred to as the bottom side.

[0032] When attaching the plate 50 between the upper base 20 and the lower base 30, the mounting screws 3 screwed into the frame 2 are loosened to form an axial gap between the upper base 20 and the lower base 30, as shown in Figure 7. The width of the gap should be wider than the thickness of the plate 50, as long as the mounting screws 3 do not come off the frame 2.

[0033] Plate 50 is inserted into the gap between upper pedestal 20 and lower pedestal 30 from the +Y side toward the -Y side. When inserting plate 50, groove 56 of plate 50 is inserted into protrusion 34 of lower pedestal 30. The tip of protrusion 34 is located above the upper end of side wall 32 and protrudes from side wall 32, so groove 56 of plate 50 can be easily inserted into protrusion 34 of lower pedestal 30 without interfering with side wall 32. Guide portion 57 is provided at the tip of guide receiver 55, and the opening width of groove 56 is wide, so groove 56 of plate 50 can be easily guided into protrusion 34 of lower pedestal 30 when inserting plate 50.

[0034] As shown in Figure 5, plate 50 is positioned vertically on lower base 30 by guide receiving portion 55 engaging from the top side with protrusion 34 inserted into groove 56 located on the top side, and central receiving portion 52 engaging from the top side with protrusion 34 inserted into groove 56 located on the bottom side. Plate 50, which engages with protrusion 34 from above, is pushed to the -Y side and protrusion 34 is positioned at the end of groove 56 on the +Y side, thereby positioning plate 50 vertically and horizontally on lower base 30. After plate 50 is positioned vertically and horizontally on lower base 30, upper base 20 approaches stile 2 by screwing in mounting screw 3, and locking device 1, whose axial dimension has been adjusted by the presence of plate 50, is fixed to stile 2.

[0035] When removing the plate 50 interposed between the upper base 20 and the lower base 30, the mounting screws 3 screwed into the frame 2 are loosened, and an axial gap is formed between the upper base 20 and the lower base 30, as shown in Figure 8. After forming the gap between the upper base 20 and the lower base 30, the plate 50 is moved relative to the lower base 30 to the position of the gap.

[0036] As shown in FIG. 6 , when the plate 50 is located close to the bottom wall 31 of the lower base 30, it may be difficult to move the plate 50. For plate 50 located close to the bottom wall 31 and difficult to move, for example, a method of inserting the tip of a flathead screwdriver into either the through-hole 58 or the notch 53A, 54A and hooking it to move the plate 50 can be used. If it is difficult to operate the flathead screwdriver due to a narrow gap or other reasons, a method of applying vibration to the plate 50 via the lower base 30 can also be used. The plate 50 located close to the bottom wall 31 of the lower base 30 engages with the inclined portion 34a of the protrusion 34. When vibration is applied, the plate 50 tends to move along the inclined portion 34a toward the gap due to its own weight. Because the protrusion 34 has a parallel portion 34b closer to the tip of the inclined portion 34a, the plate 50 moving along the inclined portion 34a is exposed in the gap between the upper base 20 and the lower base 30 and is likely to stop on the parallel portion 34b due to friction. The plate 50 exposed in the gap can be removed from between the upper base 20 and the lower base 30 by moving it to the +Y side. If the plate 50 is removed to readjust its position, a plate of a different thickness can then be attached between the upper base 20 and the lower base 30 using the method described above.

[0037] When the locking device 1 of the embodiment is used, the plate 50 has the long receiving portion 51, the central receiving portion 52 extending from the long receiving portion 51 to the -Y side, the end receiving portions 53 and 54, and the guide receiving portion 55, so that the plate 50 can be attached and removed without loosening the mounting screws 3, improving workability. When the locking device 1 is used, the plate 50 has the protrusions 34 that position the plate 50 when inserted into the grooves 56, further improving the work of attaching and removing the plate 50.

[0038] When the locking device 1 of the embodiment is used, the protrusion 34 has the inclined portion 34a, making it easy to remove the plate 50. When the locking device 1 of the embodiment is used, the protrusion 34 has the parallel portion 34b, making it easy to stop the plate 50 that has moved to the side closer to the gap. When the locking device 1 of the embodiment is used, the plate 50 has the through-hole 58 and the cutouts 53A and 54A, making it easy to remove the plate 50 and improving workability.

[0039] When the lock device 1 is used, when the side wall 32 of the lower base 30 surrounds the upper base 20 and the plate 50 from the outside all around, discontinuous surfaces such as the cross section of the plate 50 become invisible, thereby contributing to improved design.

[0040] While preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, it goes without saying that the present disclosure is not limited to these examples. The shapes and combinations of the components shown in the above examples are merely examples, and various modifications can be made based on design requirements, etc., without departing from the spirit of the present disclosure.

[0041] Although the embodiment of the crescent lock has been exemplified as the lock device 1, the present disclosure is not limited to the crescent lock and can be applied to other locks such as a cremone lock as the lock device 1. [Explanation of symbols]

[0042] 1...locking device, 3...mounting screw, 11...handle, 12...engagement portion, 13...shaft, 20...upper base, 21...support base portion, 27...first elongated hole portion, 30...lower base, 31...bottom wall, 32...side wall, 33...through hole, 34...projection portion, 34a...inclined portion, 34b...parallel portion, 51...long receiving portion, 52...central receiving portion, 53, 54...end receiving portion, 53A, 54A...notch portion, 55 guide receiving portion, 56...groove portion, 57...guiding portion, 58...through hole

Claims

1. a handle having an engagement portion and rotating around an axis; an upper base that is located on one side of the handle in the axial direction in which the shaft extends and has a support base that rotatably supports the handle, and that extends in a first direction perpendicular to the axial direction; mounting screws disposed on both sides of the support base in the first direction, engaging with the upper base from the other side in the axial direction and extending to one side in the axial direction; a lower base located on one side of the upper base in the axial direction, the lower base having insertion holes, through which the mounting screws are inserted in the axial direction, arranged at intervals in the first direction; a plate that adjusts the axial dimension between the engagement portion and the lower seat when disposed between the upper seat and the lower seat in the axial direction; Equipped with The plate is a long receiving portion disposed on one side of the insertion hole in a second direction perpendicular to the axial direction and the first direction and extending in the first direction; a central receiving portion that is located inside the insertion hole in the first direction, extends from the long receiving portion to the other side in the second direction, and overlaps with the support base portion in the axial direction; end receiving portions extending from the elongated receiving portion to the other side in the second direction at positions on both outer sides of the insertion hole in the first direction; a guide receiving portion disposed on the other side in the second direction from the long receiving portion, the guide receiving portion being located on the inner side in the first direction of the insertion hole and on the outer side in the first direction of the central receiving portion, with a groove portion extending in the second direction interposed therebetween; and The lower base has a protrusion that protrudes to the other side in the axial direction and positions the plate in the first direction when inserted into the groove.

2. At least one side of the protrusion in the first direction has an inclined portion that slopes toward the other side in the first direction as it approaches the other side in the axial direction. The locking device of claim 1.

3. The protrusion has a parallel portion parallel to the axial direction on a tip side of the inclined portion.

3. The locking device of claim 2.

4. When viewed in the axial direction, the guide receiving portion has a guide portion that extends outward in the first direction as it extends toward the other side in the second direction. A locking device according to any one of claims 1 to 3.

5. the plate has a through hole located near one edge in the second direction and extending from a center in the first direction to an outer side in the first direction; A locking device according to any one of claims 1 to 3.

6. The end receiving portion has a notch recessed from the outside to the inside in the first direction as viewed in the axial direction. A locking device according to any one of claims 1 to 3.

7. The lower base is a bottom wall disposed perpendicular to the axial direction; a side wall extending from a side edge of the bottom wall to the other side in the axial direction; and The side wall surrounds the upper base and the plate from the outside over the entire periphery. A locking device according to any one of claims 1 to 3.

Images