JP7766554B2 - Locking device - Google Patents

Description

This disclosure relates to a locking device.

There are locking devices such as crescent locks and cremone locks that open and close 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 using a mounting screw.

When replacing an existing locking device with a different type of interchangeable locking device, it is necessary to adjust the vertical and projected positions of the mounting screws. The crescent lock of Patent Document 1 has a mounting plate with a long hole extending vertically and a crescent frame with upper and lower plates, with the mounting plate fixed to the upper and lower plates at any position in the projected direction. The crescent lock of Patent Document 1 can be attached to an existing stile by adjusting the projected position of the mounting plate and the vertical position of the mounting screw inserted into the long hole in the mounting plate.

Japanese Unexamined Patent Publication No. 54-074200

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 exposed screws that adjust the projected position of the mounting plate, which reduces its design aesthetic.

This disclosure was made in consideration of the above points, and aims to provide a locking device whose installation position can be easily adjusted without compromising design or increasing costs.

A first aspect of the present disclosure includes a handle having an engagement portion and rotating around an axis, a base portion disposed on one side of the axial direction in which the axis extends relative to the handle and having a support hole that rotatably supports the axis when the axis is inserted therethrough, the base portion extending in a first direction perpendicular to the axial direction, a mounting plate provided on both sides of the base portion 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, and movable in the first direction, a mounting screw inserted into the base portion and the mounting plate from the other side in the axial direction, and a washer fixed to the end of the axis on one side in the axial direction of the axis inserted through the support hole, the base portion 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, and a second surface disposed on both sides of the support hole in the first direction across the support hole, the second surface extending in a second direction perpendicular to the axial direction and the first direction of the mounting plate a first elongated hole extending in the first direction with a width smaller than the width of the first elongated hole, 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 the 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 has a second elongated hole that penetrates in the first direction, communicates with the first elongated hole, and extends in the second direction; the mounting plate is 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 is a position where the plate body engages with the first engagement portion in the axial direction and the extending portion is separated from the second engagement portion in the first direction; and the second position is a position where the plate body is separated 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.

FIG. 1 is a front view of the locking device of the present disclosure attached to a stile. 1 is an exploded perspective view showing a locking device of the present disclosure. FIG. 10 is a plan view of the mounting plate attached to the base portion. A cross-sectional view perpendicular to the Y axis at a position including the central axis of the lock device. 4 is a cross-sectional view taken along line AA in FIG. 3. 4 is a cross-sectional view taken along the line BB in FIG. 3. 1 is a perspective view of the locking device with the mounting plate in a first position. FIG. 1 is a perspective view of the locking device with the mounting plate in a second position. FIG.

An embodiment of the locking device of the present disclosure will be described below with reference to Figures 1 to 8. The following embodiment illustrates one aspect of the present disclosure and is not intended to limit the scope of the disclosure. Any modification may be made 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 component easier to understand.

As shown in Figure 1, the locking device 1 is attached to the sash frame 2 of the inner sliding door screen. The locking device 1 is secured by screwing it into the sash frame 2 using two mounting screws 3. The locking device 1 is a crescent lock.

As shown in Figure 2, the locking device 1 has a crescent body 10, a base 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.

The handle 11 rotates relative to the base 20 around the shaft 13. The shaft 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 shroud on the sash, it connects the inner shroud and the outer shroud. When the engagement portion 12 engages with the hook, it holds the sash in a closed position.

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 both 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, described below. 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.

The above terms "upper," "lower," and "upper" are simply names used to describe the relative positions of the various parts, and the actual relative positions may be different from those indicated by these names.

The base 20 has a rectangular shape extending in the X direction when viewed axially. The base 20 is positioned below the handle 11. As shown in Figures 3 and 4, the base 20 has a support base 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 27, a first opening 28, and a second opening 29.

The support base 21 is located in the center of the base 20 in the X direction. The support base 21 is columnar and protrudes upward. The top 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 penetrates 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.

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.

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.

The end walls 24 are arranged at both ends of the base portion 20 in the X direction. The end walls 24 protrude upward from the outer ends of the first surface 22 in the X direction. The end walls 24 connect the outer ends 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.

As shown in FIG. 3, multiple 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 on 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 this embodiment, two first engagement portions 25 are arranged on each of the four guide walls 23, spaced apart in the X direction, but this is not limited to this; one first engagement portion 25 may be arranged on each of the four guide walls 23.

The first opening 28 opens to the 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 the 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.

The second opening 29 opens to the 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 to an axial size that includes 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 to an axial size that includes 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 the second extension portion 33 of the mounting plate 30, which will be described later. The second opening 29 opens to an axial size that allows the second extension portion 33, which will be described later, to be inserted in the X direction.

The second engagement portion 26 is the upper surface that forms the first opening 28. The second engagement portion 26 is located above the first surface 22. As shown in Figure 6, the second engagement portion 26 can engage with the extension portion 32 (described below) from above.

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 crimped to the shaft 13. In addition to crimping, the washer 14 may also be fixed to the shaft 13 using screws or adhesive. The axial position of the upper surface of the washer 14 fixed to the shaft 13 is below the first surface 22.

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 body 31, an extension 32, a second extension 33, and a second elongated hole 34.

The plate body 31 is rectangular when viewed in the axial direction. The Y-direction width of the plate body 31 is smaller than the gap width between the guide walls 23 arranged on both sides in the Y direction. The Y-direction width of the plate body 31 is smaller than the Y-direction width of the first surface 22. Because the Y-direction width of the plate body 31 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 X-direction length of the plate body 31 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 X-direction length of the plate body 31 is shorter than the gap dimension between the side surface 21d and the first engagement portion 25, the underside of the plate body 31 can contact the first surface 22.

The extension portion 32 extends inward in the X direction from the plate body 31. The extension portion 32 extends inward in the X direction from the +Y side end of the plate body 31. 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 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 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 extension portion 32 inserted into the first opening 28, as shown in FIG. 6. As shown in FIG. 3, the extension 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. Because the extension portion 32 does not overlap with the support hole 21a in the axial direction, the extension portion 32 does not interfere with the shaft 13. The washer 14 can engage from below with the extension portion 32 inserted into the first opening 28.

The +Y side surface of the extension portion 32 is flush with the +Y side surface of the plate body 31. Because the +Y side surface of the extension portion 32 is flush with the +Y side surface of the plate body 31, the extension portion 32, together with the plate body 31, is guided by the guide wall 23 located on the +Y side, allowing it to move smoothly in the X direction along the first surface 22.

The second extension portion 33 extends inward in the X direction from the plate main body 31. The second extension portion 33 extends inward in the X direction from the -Y side end of the plate main body 31. The second extension portion 33 faces the second opening 29 in the X direction. The axial dimension of the second extension 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 extension portion 33 is shorter than the axial dimension of the second opening 29. The Y-direction width of the second extension portion 33 is shorter than the Y-direction width of the plate main body 31. The Y-direction width of the second extension portion 33 is shorter than the Y-direction width of the second opening 29. Because 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.

The -Y side surface of the second extension portion 33 is flush with the -Y side surface of the plate body 31. Because the -Y side surface of the second extension portion 33 is flush with the -Y side surface of the plate body 31, the second extension portion 33, together with the plate body 31, is guided by the guide wall 23 located on the -Y side, allowing it to move smoothly in the X direction along the first surface 22.

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 a long 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 is axially connected to the first elongated hole portion 27. The 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. Mounting screws 3 are inserted from above through the base 20 and mounting plate 30 and screwed into the frame 2, thereby fixing the base 20 to the frame 2 via the mounting plate 30.

The screw covers 40 are removably 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 end wall 24 from above. When the screw covers 40 are removed from the base 20, the mounting plate 30 and mounting screws 3 are 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 stile 2 via the mounting plate 30. By attaching the screw covers 40 to the base 20, the mounting plate 30 and mounting screws 3 can be covered from above. Covering the mounting plate 30 and mounting screws 3 from above improves the design of the locking device 1.

When assembling the locking 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 either before or after attaching the mounting plate 30 to the base 20.

When attaching the mounting plate 30 to the base 20, the mounting plate 30 is tilted diagonally 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 Figure 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 diagonally inward in the X direction, as indicated by the arrow in Figure 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.

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 lines in FIG. 6. Because the length of the plate body 31 in the X direction is shorter than the gap between the side surface 21d of the support base 21 and the first engagement portion 25, which is positioned inward in the X direction, the plate body 31 is supported on the first surface 22 without interfering with the first engagement portion 25. Engaging the upper surface of the extension portion 32 from above with the second engagement portion 26 prevents the mounting plate 30 from coming off the base 20.

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 into 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 indicated by the dashed-dotted 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 locking device 1.

The mounting plate 30 in the assembled locking device 1 can move 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.

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 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 washer 14 in the axial direction.

When securing the locking device 1 to the stile 2, the screw cover 40 is removed from the base 20, and the mounting plate 30 is then moved in the X direction to the X-direction screw position on the stile 2. As the mounting plate 30 moves in the X direction, the mounting screw 3 inserted through the first elongated hole 27 moves through the mounting plate 30 and within the first elongated hole 27 to the X-direction screw position on the stile 2. The mounting screw 3 that has moved to the X-direction screw position on the stile 2 is then moved along the second elongated hole 34 to the Y-direction screw position on the stile 2. The locking device 1 can be secured to the stile 2 by screwing in the mounting screw 3 that has moved to the X-direction and Y-direction screw positions on the stile 2. Attaching the screw cover 40 to the locking device 1 secured to the stile 2 completes the installation of the locking device 1 to the stile 2.

When the locking device 1 of this embodiment is used, the first engagement portion 25 prevents the mounting plate 30 from coming off the base portion 20 at the first position P1, and the second engagement portion 26, which axially engages with the extension portion 32, and the washer 14 prevent the mounting plate 30 from coming off the base portion 20 at the second position P2 where the mounting plate 30 is spaced away from the first engagement portion 25. 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 component used to adjust the position of the mounting screw 3. When the locking device 1 is used, the mounting position can be easily adjusted without compromising design or increasing costs.

When the locking device 1 is used, the first engagement portion 25 is provided on the guide wall 23, making it possible to reduce the size and cost of the base portion 20 compared to when a separate first engagement portion is provided.

Preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, but 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.

In the embodiment, a configuration in which the mounting plate 30 has the extension portion 32 and the second extension portion 33 has been exemplified, but this configuration is not limited to this and a configuration in which only the extension portion 32 is included is also possible. When the mounting plate 30 has the extension portion 32 and the second extension portion 33, when the tilted plate body 31 is rotated, it can be rotated in a more balanced and stable manner than when the mounting plate 30 has only the extension portion 32 positioned on the +Y side.

Although an embodiment of a crescent lock has been illustrated as the lock device 1, this disclosure is not limited to crescent locks. The lock device 1 can also be applied to other locks, such as a cremone lock.

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 (5)

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. 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.
The locking device of claim 1. The first engagement portion extends inward in the second direction from the guide wall.
3. The locking device of claim 2. 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. The washer is a crimped body crimped to the shaft.
A locking device according to any one of claims 1 to 3.