Locking device

Abstract

To provide a lock device capable of easily adjusting a fitting position without causing a deterioration in design or an increase in cost.SOLUTION: The lock device comprises: a handle that rotates around an axis; a pedestal part having a support hole that supports the axis, and extending in a first direction; a fitting plate having a plate body and an extension part, and movable in the first direction; a fitting screw; and a washer fixed on an end part of the axis. The pedestal part includes a first face that guides a movement of the fitting plate, a first long hole part that extends in the first direction, a first engaging part that can be engaged with the end part in a second direction of the plate body from the other side of the axial direction, and a second engaging part that can be engaged with the extension part from the other side of the axial direction. The fitting plate has a second long hole part extending in the second direction, and can move between a first position and a second position. In the first position, the plate body engages with the first engaging part in the axial direction, and the extension part separates from the second engaging part in the first direction. In the second position, the plate body separates from the first engaging part in the first direction, and the extension part engages with the second engaging part and the washer in the axial direction.SELECTED DRAWING: Figure 6

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 vertical and front-facing positions of the mounting screws. The crescent lock of Patent Document 1 has a mounting plate with a long hole extending in the vertical direction and a crescent frame with upper and lower plates, and the mounting plate is fixed to the upper and lower plates at any position in the front-facing direction. The crescent lock of Patent Document 1 can be attached to an existing stile by adjusting the front-facing position of the mounting plate and the vertical position of the mounting screw inserted into the long hole of the mounting plate. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 54-074200 Summary of the Invention [Problem to be solved by the invention]

[0005] The crescent lock in Patent Document 1 has a large number of parts, which increases costs. The crescent lock in Patent Document 1 also has an exposed screw for adjusting the projected position of the mounting plate, which reduces the design.

[0006] The present disclosure has been made in consideration of the above points, and aims to provide a locking device whose installation position can be easily adjusted without reducing design or increasing costs. [Means for solving the problem]

[0007] a mounting plate provided on each side of the base in the first direction across the support hole, the mounting plate having a plate body and an extension portion extending from the plate body toward the support hole in the first direction, the mounting plate being movable in the first direction; a mounting screw inserted into the base and the mounting plate from the other side in the axial direction; and a washer fixed to an end of the shaft inserted into the support hole on one side in the axial direction, the mounting plate having a first surface facing the other side in the axial direction and guiding movement of the mounting plate from one side in the axial direction. a first elongated hole portion extending in the first direction with a width smaller than the width of the first elongated hole portion, opening on the first surface and penetrating in the axial direction, a first engagement portion located on the other side of the first surface in the axial direction and engageable with an end of the plate body in the second direction from the other side in the axial direction, and a second engagement portion located on the other side of the first surface in the axial direction and engageable with the extending portion from the other side in the axial direction, the mounting plate having a second elongated hole portion penetrating in the first direction, communicating with the first elongated hole portion and extending in the second direction, the mounting plate being movable between a first position farthest from the support hole in the first direction and a second position closest to the support hole, the first position being a position where the plate body engages with the first engagement portion in the axial direction and the extending portion is away from the second engagement portion in the first direction, and the second position being a position where the plate body is away from the first engagement portion in the first direction and the extending portion engages with the second engagement portion and the washer in the axial direction. [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 an exploded perspective view showing a locking device of the present disclosure. [Figure 3] FIG. 10 is a plan view of the mounting plate attached to the base portion. [Figure 4] A cross-sectional view perpendicular to the Y axis at a position including the central axis of the locking device. [Figure 5] 4 is a cross-sectional view taken along the line AA in FIG. 3. [Figure 6] 4 is a cross-sectional view of FIG. 3 taken along line B-B. [Figure 7] 1 is a perspective view of the locking device with the mounting plate in a first position. FIG. [Figure 8] 1 is a perspective view of the locking device with the mounting plate in a second position. FIG. 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] 2, the lock device 1 has a crescent body 10, a base portion 20, a mounting plate 30, and a screw cover 40. The crescent body 10 has a handle 11, an engagement portion 12, a shaft 13, and a washer 14.

[0012] The handle 11 rotates relative to the base portion 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 be simply 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 base portion 20 will be simply referred to as the "X direction." The direction perpendicular to the central axis J and parallel to the short side of the base portion 20 will be simply referred to as the "Y direction." In each of the "X direction" and "Y direction," the side away from the center of the component is referred to as the outside, and the side toward the center is referred to as the inside. The inside of the "X direction" corresponds to the side toward the support hole, which will be described later. The "X direction" corresponds to 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] The base portion 20 has a rectangular shape extending in the X direction when viewed in the axial direction. The base portion 20 is disposed below the handle 11. As shown in FIGS. 3 and 4 , the base portion 20 has a support base portion 21, a first surface 22, a guide wall 23, an end wall 24, a first engagement portion 25, a second engagement portion 26, a first elongated hole portion 27, a first opening portion 28, and a second opening portion 29.

[0016] The support base 21 is provided in the center of the base 20 in the X direction. The support base 21 is columnar and protrudes upward. The upper surface of the support base 21 rotatably supports the handle 11 from below. The support base 21 has a support hole 21a and a recess 21b. The support hole 21a passes through the support base 21 in the axial direction. The shaft 13 is inserted into the support hole 21a from above. The support hole 21a rotatably supports the inserted shaft 13. The recess 21b is recessed from the bottom to the top of the support base 21. A step 21c is provided at the bottom of the recess 21b. The step 21c is flush with the first surface 22.

[0017] The first surfaces 22 face upward. The first surfaces 22 are arranged on both sides of the support base 21 in the X direction. The first surfaces 22 extend outward in the X direction from the support base 21. The first surfaces 22 guide the movement of the mounting plate 30 in the X direction from below. The first elongated hole portions 27 are arranged on both sides of the support base 21 in the X direction. The first elongated hole portions 27 are arranged on both sides of the support hole 21a in the X direction. The first elongated hole portions 27 penetrate the base 20 in the axial direction and open to the first surface 22. The center position of the first elongated hole portion 27 in the Y direction is the same as the center position of the first surface 22 in the Y direction. The first elongated hole portion 27 extends in the X direction with a width smaller than the width of the first surface 22 in the Y direction. The mounting screw 3 is inserted into the first elongated hole portion 27 from above.

[0018] The guide walls 23 extend in the X direction. The guide walls 23 protrude upward on both sides of the first surface 22 in the Y direction. The guide walls 23 are arranged parallel to each other. The guide walls 23 are arranged on both sides of the support base 21 in the X direction. The guide walls 23 are located on the outer side in the Y direction of the mounting plate 30 supported on the first surface 22. The guide walls 23 guide the movement of the mounting plate 30 in the X direction from the outer side in the Y direction.

[0019] The end walls 24 are disposed on both ends of the base portion 20 in the X direction. The end walls 24 protrude upward from the outer end portions of the first surface 22 in the X direction. The end walls 24 connect the outer end portions of the guide walls 23 in the X direction. The end walls 24 function as outer stoppers for the movement of the mounting plate 30 in the X direction.

[0020] As shown in FIG. 3 , a plurality of first engagement portions 25 are arranged on the guide wall 23 at intervals in the X direction. Two first engagement portions 25 are arranged on each of the four guide walls 23 at intervals in the X direction. One of the two first engagement portions 25 arranged on each guide wall 23 is arranged near the center between the support base 21 and the end wall 24 in the X direction. The other first engagement portion 25 is arranged further outward in the X direction than the first engagement portion 25 arranged near the center. As shown in FIG. 5 , the first engagement portion 25 is located above the first surface 22. The first engagement portion 25 extends inward in the Y direction from the guide wall 23. The first engagement portion 25 can face from above the Y-direction end of the mounting plate 30 supported by the first surface 22. When facing the mounting plate 30 from above, the first engagement portion 25 can engage from above with the Y-direction end of the mounting plate 30. The mounting plate 30, whose Y-direction end is engaged from above by the first engagement portion 25, is held in the axial direction between the first surface 22 and the first engagement portion 25. The mounting plate 30 is held in the axial direction between the first surface 22 and the first engagement portion 25, and is movable in the X direction with its Y-direction end facing outward from the guide wall 23. In the present embodiment, the case is illustrated in which two first engagement portions 25 are arranged on each of the four guide walls 23 and spaced apart in the X direction, but this is not limited thereto, and one first engagement portion 25 may be arranged on each of the four guide walls 23.

[0021] The first opening 28 opens to a side surface 21d of the support base 21 facing outward in the X direction. As shown in FIG. 6, the first opening 28 connects the outer side of the support base 21 in the X direction to the recess 21b. As shown in FIG. 5, the first opening 28 is rectangular when viewed in the X direction. The first opening 28 opens with an axial size that covers a range including the axial space between the first surface 22 and the first engagement portion 25 on the +Y side. The axial dimension of the first opening 28 is longer than the axial dimension of the mounting plate 30. The first opening 28 opens with a Y-direction size that covers a range including the +Y side end of the mounting plate 30 and the space inward in the Y direction from the +Y side end of the mounting plate 30. The Y-direction dimension of the first opening 28 is longer than the axial dimension of an extension portion 32 of the mounting plate 30, which will be described later. The first opening 28 opens with a size that allows the extension portion 32, which will be described later, to be inserted in the X direction.

[0022] The second opening 29 opens to a side surface 21d of the support base 21 facing outward in the X direction. The second opening 29 connects the outside of the support base 21 in the X direction to the recess 21b. The second opening 29 is rectangular when viewed in the X direction. The second opening 29 opens with an axial size that covers a range including the axial space between the first surface 22 and the first engagement portion 25 on the -Y side. The axial dimension of the second opening 29 is longer than the axial dimension of the mounting plate 30. The second opening 29 opens with a Y size that covers a range including the -Y side end of the mounting plate 30 and the space inward in the Y direction from the -Y side end of the mounting plate 30. The Y direction dimension of the second opening 29 is longer than the Y direction dimension of a second extension portion 33 of the mounting plate 30, which will be described later. The second opening 29 opens with a size that allows the second extension portion 33, which will be described later, to be inserted in the X direction.

[0023] The second engagement portion 26 is an upper surface that forms the first opening 28. The second engagement portion 26 is located above the first surface 22. As shown in FIG. 6, the second engagement portion 26 can engage with an extension portion 32, which will be described later, from above.

[0024] The washer 14 is fixed to the axial end of the shaft 13 inserted through the support hole 21a. As an example, the washer 14 is fixed to the shaft 13 by crimping. The washer 14 is a crimped body that is crimped to the shaft 13. The washer 14 may be fixed to the shaft 13 by screws or with an adhesive, instead of by crimping. The axial position of the upper surface of the washer 14 fixed to the shaft 13 is lower than the first surface 22.

[0025] The mounting plate 30 is movable in the X direction along the first surface 22. The mounting plates 30 are provided on both sides of the support base 21 in the X direction. As shown in FIG. 2 , the mounting plate 30 has a plate main body 31, an extending portion 32, a second extending portion 33, and a second elongated hole portion 34.

[0026] The plate body 31 has a rectangular shape when viewed in the axial direction. The width of the plate body 31 in the Y direction is smaller than the gap width between the guide walls 23 arranged on both sides in the Y direction. The width of the plate body 31 in the Y direction is smaller than the width of the first surface 22 in the Y direction. Because the width of the plate body 31 in the Y direction is smaller than the gap width between the guide walls 23, the plate body 31 is guided by the guide walls 23 and can move in the X direction along the first surface 22. The length of the plate body 31 in the X direction is shorter than the gap dimension between the side surface 21d of the support base 21 and the first engagement portion 25 located on the inside in the X direction. Because the length of the plate body 31 in the X direction is shorter than the gap dimension between the side surface 21d and the first engagement portion 25, the lower surface of the plate body 31 can contact the first surface 22.

[0027] The extension portion 32 extends inward in the X direction from the plate main body 31. The extension portion 32 extends inward in the X direction from the end of the plate main body 31 on the +Y side. The extension portion 32 faces the first opening 28 in the X direction. The axial dimension of the extension portion 32 is the same as the axial dimension of the plate main body 31. The axial dimension of the extension portion 32 is shorter than the axial dimension of the first opening 28. The Y direction width of the extension portion 32 is shorter than the Y direction width of the plate main body 31. The Y direction width of the extension portion 32 is shorter than the Y direction width of the first opening 28. Because the axial dimension of the extension portion 32 is shorter than the axial dimension of the first opening 28 and the Y direction width of the extension portion 32 is shorter than the Y direction width of the first opening 28, the extension portion 32 can be inserted into the first opening 28 from the outside in the X direction. When the plate body 31 is in contact with the side surface 21d and positioned at the innermost position in the X direction, the second engagement portion 26 engages from above with the extending portion 32 inserted into the first opening 28, as shown in FIG. 6. As shown in FIG. 3, the extending portion 32 inserted into the first opening 28 overlaps with the washer 14 in the axial direction but does not overlap with the support hole 21a. Since the extending portion 32 does not overlap with the support hole 21a in the axial direction, the extending portion 32 does not interfere with the shaft 13. The washer 14 can engage with the extending portion 32 inserted into the first opening 28 from below.

[0028] The +Y side surface of extension portion 32 is flush with the +Y side surface of plate main body 31. Because the +Y side surface of extension portion 32 is flush with the +Y side surface of plate main body 31, extension portion 32 is guided together with plate main body 31 by guide wall 23 located on the +Y side, and can move smoothly in the X direction along first surface 22.

[0029] The second extending portion 33 extends inward in the X direction from the plate main body 31. The second extending portion 33 extends inward in the X direction from the -Y side end of the plate main body 31. The second extending portion 33 faces the second opening 29 in the X direction. The axial dimension of the second extending portion 33 is the same as the axial dimension of the plate main body 31. The mounting plate 30 is plate-shaped with a constant axial dimension. The axial dimension of the second extending portion 33 is shorter than the axial dimension of the second opening 29. The Y-direction width of the second extending portion 33 is shorter than the Y-direction width of the plate main body 31. The Y-direction width of the second extending portion 33 is shorter than the Y-direction width of the second opening 29. Since the axial dimension of the second extension portion 33 is shorter than the axial dimension of the second opening 29 and the Y-direction width of the second extension portion 33 is shorter than the Y-direction width of the second opening 29, the second extension portion 33 can be inserted into the second opening 29 from the outside in the X-direction.

[0030] The -Y side surface of second extending portion 33 is flush with the -Y side surface of plate main body 31. Because the -Y side surface of second extending portion 33 is flush with the -Y side surface of plate main body 31, second extending portion 33 is guided together with plate main body 31 by guide wall 23 located on the -Y side, and can move smoothly in the X direction along first surface 22.

[0031] The second elongated hole portion 34 penetrates the plate main body 31 in the axial direction. As shown in FIG. 2, the second elongated hole portion 34 is an elongated hole extending in the Y direction. The maximum dimension of the second elongated hole portion 34 in the Y direction is the same as the maximum dimension of the first elongated hole portion 27 in the Y direction. As shown in FIG. 4, the second elongated hole portion 34 communicates with the first elongated hole portion 27 in the axial direction. A mounting screw 3 is inserted into the second elongated hole portion 34 from above. The mounting screw 3 is inserted into the second elongated hole portion 34 and the first elongated hole portion 27 from above. The head portion of the mounting screw 3 inserted into the second elongated hole portion 34 and the first elongated hole portion 27 from above engages with the mounting plate 30 from above. The mounting screw 3 is inserted into the base portion 20 and the mounting plate 30 from above. The mounting screws 3 inserted from above into the base portion 20 and the mounting plate 30 are screwed into the bracket frame 2, thereby fixing the base portion 20 to the bracket frame 2 via the mounting plate 30.

[0032] The screw covers 40 are detachably attached to both sides of the support base 21 of the base 20 in the X direction. The screw covers 40 are attached to the guide wall 23 and the end wall 24 from above. When the screw cover 40 is removed from the base 20, the mounting plate 30 and the mounting screws 3 can be exposed. The positions of the exposed mounting screws 3 can be adjusted in the X and Y directions via the mounting plate 30. By screwing in the mounting screws 3 whose positions in the X and Y directions have been adjusted, the base 20 can be fixed to the joining frame 2 via the mounting plate 30. By attaching the screw cover 40 to the base 20, the mounting plate 30 and the mounting screws 3 can be covered from above. Covering the mounting plate 30 and the mounting screws 3 from above improves the design of the locking device 1.

[0033] In assembling the lock device 1 configured as described above, the mounting plate 30 is attached to the base 20 before the washer 14 is crimped to the shaft 13. The work of inserting the shaft 13 into the support hole 21a and attaching the handle 11 may be performed before or after the mounting plate 30 is attached to the base 20.

[0034] When attaching the mounting plate 30 to the base 20, the mounting plate 30 is tilted obliquely so that the outer side in the X direction is positioned on the upper side and the inner side in the X direction is positioned on the lower side, as shown by the two-dot chain line in FIG. 6 . The outer side of the mounting plate 30 in the X direction is above the first engagement portion 25 and does not come into contact with the first engagement portion 25. The tilted mounting plate 30 is then moved obliquely inward in the X direction, as indicated by the arrow in FIG. 6 . Of the mounting plate 30, the extension portion 32 is inserted into the recess 21b through the first opening 28, and the second extension portion 33 is inserted into the recess 21b through the second opening 29. When the extension portion 32 is inserted into the recess 21b, the washer 14 is not fixed to the shaft 13, so the extension portion 32 is inserted into the recess 21b without interfering with the washer 14.

[0035] When the extension portion 32 and the second extension portion 33 are inserted into the recess 21b and the plate body 31 is in contact with the side surface 21d and positioned at the innermost position in the X direction, the mounting plate 30, which is tilted at an angle, is rotated clockwise in FIG. 6 so that the lower surface of the plate body 31 is supported from below by the first surface 22 and the upper surface of the extension portion 32 is engaged from above by the second engagement portion 26, as shown by the solid line in FIG. 6. Because the length of the plate body 31 in the X direction is shorter than the gap dimension between the side surface 21d of the support base 21 and the first engagement portion 25 positioned inward in the X direction, the plate body 31 is supported by the first surface 22 without interfering with the first engagement portion 25. Engaging the upper surface of the extension portion 32 from above by the second engagement portion 26 prevents the mounting plate 30 from coming off the base 20 upward.

[0036] When the mounting plate 30 is attached to the base 20, if the shaft 13 is not already inserted through the support hole 21a, the shaft 13 is inserted through the support hole 21a and then the washer 14 is crimped to the end of the shaft 13. If the washer 14 is not secured to the end of the shaft 13, the mounting plate 30 may tilt diagonally and come off the base 20, as shown by the two-dot chain line. The washer 14 secured to the shaft 13 can engage with the extension 32 from below, preventing the mounting plate 30 from tilting diagonally and coming off the base 20. Once the washer 14 is crimped to the shaft 13, the screw cover 40 is attached to the base 20, completing the assembly of the lock device 1.

[0037] The mounting plate 30 in the assembled locking device 1 is movable between a first position P1, which is farthest from the support base 21 in the X direction, as shown in Figure 7, and a second position P2, which is closest to the support base 21, as shown in Figure 8.

[0038] The first position P1 is a position where the plate body 31 engages with the first engagement portion 25 in the axial direction, and the extension portion 32 is spaced outward in the X direction from the second engagement portion 26 and the first opening 28 shown in Fig. 6. The second position P2 is a position where the plate body 31 is spaced inward in the X direction from the first engagement portion 25, and the extension portion 32 engages with the second engagement portion 26 and the washer 14 in the axial direction.

[0039] When fixing the locking device 1 to the stile 2, after removing the screw cover 40 from the base 20, the mounting plate 30 is moved in the X direction to the screw position in the X direction of the stile 2. By moving the mounting plate 30 in the X direction, the mounting screw 3 inserted into the first elongated hole 27 moves through the mounting plate 30 within the first elongated hole 27 to the screw position in the X direction of the stile 2. The mounting screw 3 that has moved to the screw position in the X direction of the stile 2 is then moved along the second elongated hole 34 to the screw position in the Y direction of the stile 2. The locking device 1 can be fixed to the stile 2 by screwing in the mounting screw 3 that has moved to the screw position in the X and Y directions of the stile 2. By attaching the screw cover 40 to the locking device 1 fixed to the stile 2, the installation of the locking device 1 to the stile 2 is completed.

[0040] When the locking device 1 of the embodiment is used, at the first position P1, the first engagement portion 25 is used to prevent the mounting plate 30 from coming off the base portion 20, and at the second position P2 where the mounting plate 30 is separated from the first engagement portion 25, the second engagement portion 26 that axially engages with the extension portion 32 and the washer 14 are used to prevent the mounting plate 30 from coming off the base portion 20. When the locking device 1 is used, the position of the mounting screw 3 can be adjusted using the washer 14 used to secure the handle 11, without exposing the member that adjusts the position of the mounting screw 3. When the locking device 1 is used, the mounting position can be easily adjusted without compromising the design or increasing costs.

[0041] When the locking device 1 is used, the first engagement portion 25 is provided on the guide wall 23, so the base portion 20 can be made smaller and less expensive than when a separate first engagement portion is provided.

[0042] 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.

[0043] In the embodiment, a configuration in which the mounting plate 30 has the extending portion 32 and the second extending portion 33 has been exemplified, but this configuration is not limited to this, and the mounting plate 30 may have only the extending portion 32. When the mounting plate 30 has the extending portion 32 and the second extending portion 33, when the tilted plate main body 31 is rotated, it can be rotated more stably and in a more balanced manner than when the mounting plate 30 has only the extending portion 32 arranged on the +Y side.

[0044] 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]

[0045] 1...locking device, 3...mounting screw, 11...handle, 12...engagement portion, 13...shaft, 14...washer, 20...base portion, 21a...support hole, 22...first surface, 23...guide wall, 25...first engagement portion, 26...second engagement portion, 27...first elongated hole portion, 28...first opening, 29...second opening, 30...mounting plate, 31...plate body, 32...extension portion, 33...second extension portion, 34...second elongated hole portion, P1...first position, P2...second position

Claims

1. a handle having an engagement portion and rotating around an axis; a base portion disposed on one side of the handle in the axial direction in which the shaft extends, the base portion having a support hole that rotatably supports the shaft when the shaft is inserted therethrough, and extending in a first direction perpendicular to the axial direction; mounting plates provided on both sides of the support hole in the first direction in the base portion, the mounting plates having plate bodies and extension portions extending from the plate bodies toward the support hole in the first direction, and movable in the first direction; a mounting screw inserted through the base portion and the mounting plate from the other side in the axial direction; a washer fixed to one end of the shaft in the axial direction, the shaft being inserted into the support hole; and The base portion is a first surface facing the other side in the axial direction and guiding movement of the mounting plate from one side in the axial direction; a first elongated hole portion that is disposed on each side of the support hole in the first direction, extends in the first direction with a width smaller than a width of the mounting plate in a second direction perpendicular to the axial direction and the first direction, opens in the first surface, and penetrates in the axial direction; a first engaging portion located on the other side in the axial direction than the first surface and capable of engaging with an end portion of the plate body in the second direction from the other side in the axial direction; a second engaging portion located on the other side of the first surface in the axial direction and engageable with the extending portion from the other side in the axial direction; and The mounting plate is a second elongated hole portion that penetrates in the first direction, communicates with the first elongated hole portion, and extends in the second direction, and is movable between a first position that is farthest from the support hole in the first direction and a second position that is closest to the support hole, the first position is a position where the plate body engages with the first engagement portion in the axial direction and the extension portion is spaced apart from the second engagement portion in the first direction, A lock device wherein the second position is a position where the plate body is separated from the first engagement portion in the first direction and the extension portion engages with the second engagement portion and the washer in the axial direction.

2. the base portion has guide walls that protrude from the first surface toward the other side in the axial direction, extend in the first direction, and guide movement of the mounting plate from outside in the second direction, on both sides of the first surface in the second direction.

2. The locking device of claim 1.

3. The first engagement portion extends inward in the second direction from the guide wall.

3. The locking device of claim 2.

4. the extension portion extends from one end of the plate body in the second direction toward the support hole in the first direction, the mounting plate has a second extending portion that extends from an end portion of the plate body on the other side in the second direction toward the support hole in the first direction, the base portion has a first opening into which the extension portion is inserted along the first direction, and a second opening into which the second extension portion is inserted along the first direction; having A locking device according to any one of claims 1 to 3.

5. The washer is a crimped body crimped to the shaft. A locking device according to any one of claims 1 to 3.

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