Hook lock

Abstract

To suppress malfunction.SOLUTION: In a hook lock 10, a pair of a first regulating projection part 30F1 and a second regulating projection part 30F2 are provided on a flange part 30B of an operation member 30. Then, in the unlocking operation position (locking operation position) of the operation member 30, the sickle operation member 40 abuts against the first restricting protrusion portion 30F1 (second restricting protrusion portion 30F2), so that the rotation of the sickle operation member 40 on the forward path side (backward path side) is restricted. For this reason, a state where the engagement groove portion 42B of the sickle operation member 40 is disposed to face the rotating force transmission portion 30E of the operation member 30 is maintained. In addition, the first restricting protrusion portion 30F1 and the second restricting protrusion portion 30F2 are disposed at positions different from the rotational force transmitting portion 30E. Accordingly, it is possible to suppress deformation or the like of the rotating force transmission portion 30E, compared to a configuration in which the rotation of the sickle operation member 40 on the forward path side and the backward path side is regulated by the rotating force transmission portion 30E. Thus, the operation failure of the hook lock 10 caused by the deformation or the like of the rotational force transmission part 30E can be suppressed.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a hook lock. [Background technology]

[0002] In the sickle lock described in Patent Document 1 below, when the operating member is rotated, the sickle actuating member moves back and forth in the front-to-back direction, and the sickle member connected to the sickle actuating member switches between a locked state and an unlocked state. Specifically, when the operating member is rotated, the tip protrusion of the operating member is inserted into the notch of the sickle actuating member, and the tip protrusion and the notch engage. As a result, the rotational force of the operating member is transmitted to the notch, causing the sickle actuating member to move back and forth in the front-to-back direction.

[0003] In addition, in the above-mentioned sickle lock, when the sickle lock is in the unlocked state or locked state, the tip protrusion of the operating member is engaged with the oblique opening of the notch in the sickle actuating member, restricting the movement of the sickle actuating member in the forward or backward direction. In other words, when the sickle actuating member abuts against the tip protrusion of the operating member, the relative movement of the sickle actuating member with respect to the operating member is restricted, and the tip protrusion is maintained in a position where it can be inserted into the notch. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-157529 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the above-mentioned sickle lock leaves room for improvement in the following respects. As described above, in the above-mentioned sickle lock, the tip protrusion that transmits the rotational force of the operating member restricts the forward or backward movement of the sickle actuating member. Therefore, for example, when the sickle lock is in the locked or unlocked state, if an external force is input from the sickle member to the sickle actuating member in the forward or backward direction, the external force acts on the tip protrusion. If the tip protrusion is damaged or deformed by the external force, the sickle lock may malfunction.

[0006] In consideration of the above, the present invention provides a hook lock that can suppress malfunctions. [Means for solving the problem]

[0007] One or more embodiments of the present invention are a sickle lock including: an operating member that rotates back and forth between a first operating position and a second operating position around an axis extending in a predetermined direction when a rotational force is input; a sickle operating member that rotates back and forth with the predetermined direction as its axial direction by the rotational force transmitted from the operating member; a sickle member that is connected to the sickle operating member and that switches between a locked state and an unlocked state when the sickle operating member rotates back and forth; a groove that is formed on the outer periphery of the sickle operating member and opens in a direction perpendicular to the rotational direction of the sickle operating member; a transmission part that is provided on the operating member and is positioned on the opening side of the groove in the first operating position and the second operating position, and that is inserted into the groove and engages with the groove when the operating member rotates to transmit the rotational force to the sickle operating member; and a restriction part that is provided on the operating member and positioned different from the transmission part, and that restricts the rotation of the sickle operating member in at least one of the forward and backward directions when the sickle operating member abuts against it. [Effects of the Invention]

[0008] According to one or more embodiments of the present invention, malfunctions can be reduced. [Brief explanation of the drawings]

[0009] [Figure 1]1 is a side view of a sliding door to which a hook lock according to an embodiment of the present invention is applied, viewed from the right side. [Figure 2] 2 is a side view showing the inside of the case of the hook lock shown in FIG. 1. FIG. [Figure 3] 3 is a side view showing a state in which the operating member of the sickle lock shown in FIG. 2 has rotated in one rotation direction and the sickle member has switched to a locked state. [Figure 4] 3 is an enlarged perspective view of the operating member shown in FIG. 2, seen obliquely from the right rear. [Figure 5] 3(A) is an enlarged side view of the operating member and its periphery shown in FIG. 2, and FIG. 3(B) is a side view showing the operating member of FIG. 3(A) rotated in one direction of rotation so that the torque transmission part abuts against one side of the engagement groove part of the sickle actuating member. [Figure 6] (A) is a side view showing the state in which the operating member shown in Figure 5(B) has further rotated and the engagement between the rotational force transmission part and the engagement groove part has been released, and (B) is a side view showing the state in which the operating member of (A) has further rotated and reached the locking operation position. [Figure 7] 3 is a side view showing an example in which the restricting protrusion is omitted from the operating member shown in FIG. 2.

[0023] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] The following describes the hook lock 10 according to this embodiment with reference to the drawings. The arrows UP, FR, and RH shown in the drawings indicate the upper side, front side, and right side of the hook lock 10. In the following description, when the up / down, front / rear, and left / right directions are used, they refer to the up / down, front / rear, and left / right directions of the hook lock 10.

[0011] As shown in FIG. 1 , the hook lock 10 is built into the sliding door 80. The sliding door 80 is formed in a generally rectangular plate shape with a thickness in the left-right direction and a length in the up-down direction, and is provided within a door frame 82 of a building so as to be movable in the front-to-back direction. When the door frame 82 is closed by the sliding door 80, the sliding door 80 is disposed behind a front vertical frame 82A of the door frame 82, and the sliding door 80 and the vertical frame 82A are disposed opposite each other in the front-to-back direction. A sliding door strike 84 is provided within the front vertical frame 82A. The hook lock 10 is also provided in the vertical middle of the front end of the sliding door 80. As will be described in detail later, when the sliding door 80 is in a closed state, by locking the hook lock 10 (the hook member 60 thereof), the hook member 60 of the hook lock 10 engages with the sliding door strike 84, preventing the sliding door 80 from moving in the opening direction (rearward). On the other hand, by unlocking the sickle lock 10 (the sickle member 60 thereof), the engagement between the sickle member 60 of the sickle lock 10 and the sliding door strike 84 is released, and movement of the sliding door 80 in the opening direction is permitted. Below, the configuration of the sickle lock 10 will be explained using the sickle lock 10 in the unlocked state.

[0012] As shown in Figure 2, the sickle lock 10 is configured to include a case 20, an operating member 30, a sickle operating member 40, a link 50 (broadly speaking, an element that can be understood as a connecting member), and a sickle member 60. The sickle lock 10 also has a rotation restriction mechanism 70 for restricting the rotation of the sickle operating member 40 when the sickle lock 10 is in the unlocked state and the locked state. Each component of the sickle lock 10 will be described below.

[0013] (About Case 20) The case 20 forms the outer shell of the hook lock 10. The case 20 is formed in a generally hollow rectangular box shape with the thickness direction being the left-right direction and the length direction being the up-down direction. An opening 20A is formed in the lower part of the front wall of the case 20, penetrating in the front-rear direction, and the opening 20A is formed in a generally rectangular shape with the length direction being the up-down direction when viewed from the front-rear direction.

[0014] A decorative plate 22 is provided on the front side of the case 20, and covers the front side of the case 20 with the decorative plate 22. The decorative plate 22 is formed in a generally elongated plate shape with the plate thickness direction in the front-to-rear direction and the longitudinal direction in the up-down direction. A communication hole 22A is formed in the decorative plate 22 at a position corresponding to the opening 20A of the case 20, and the communication hole 22A is formed in a generally rectangular shape with the longitudinal direction in the up-down direction.

[0015] (Regarding the operating member 30) As shown in FIGS. 2 and 4, the operating member 30 is housed in the rear portion of the upper end of the case 20. The operating member 30 is composed of two operating plates 32, 34 whose thickness is in the left-right direction. The operating plates 32, 34 are made of metal plates, are arranged opposite each other in the left-right direction, and are joined to each other by welding or the like. The operating plates 32, 34 include a cylindrical portion 30A that is substantially cylindrical and has a bottom and protrudes outward in the left-right direction, and a flange portion 30B that protrudes radially outward from the open end of the cylindrical portion 30A. A shaft connecting hole 30C is formed through the bottom wall of the cylindrical portion 30A. The connecting shaft of a thumb turn 86 (see FIG. 1) provided on the right side surface (indoor side surface) of the sliding door 80 is fitted into the shaft connecting hole 30C of the right operating plate 32 so as to be rotatable together. Additionally, the connecting shaft of a key cylinder (not shown) provided on the left side (outdoor surface) of the sliding door 80 is fitted into the shaft connecting hole 30C of the left operation plate 34 so as to be integrally rotatable. As a result, the operation member 30 is supported by the thumb turn 86 and the key cylinder so as to be rotatable with the left-right direction as the axial direction.

[0016] When the thumb turn 86 or the key cylinder is operated and a rotational force, which is an operating force, is input to the operating member 30, the operating member 30 rotates back and forth around the axis AL of the cylindrical portion 30A. Specifically, the operating member 30 rotates back and forth between an unlocking operation position (position shown in FIG. 2) as a first operation position and a locking operation position (position shown in FIG. 3) as a second operation position rotated from the unlocking operation position to one side in the rotational direction (the direction of arrow A in FIG. 2). Note that a pair of first stoppers 20B are provided on the case 20. When the operating member 30 is in the unlocking operation position, the flange portion 30B of the operating member 30 abuts against one of the first stoppers 20B, restricting rotation of the operating member 30 in the other rotational direction (the direction of arrow B in FIG. 3). Furthermore, when the operating member 30 is in the locking operation position, the flange portion 30B of the operating member 30 abuts against the other first stopper 20B, restricting rotation of the operating member 30 to one side in the rotation direction. In other words, the rotation range of the operating member 30 is restricted by the pair of first stoppers 20B.

[0017] A protruding piece 30D is provided on the left operation plate 34. When viewed from the left-right direction, the protruding piece 30D is formed in a generally T-shaped plate shape, and protrudes obliquely downward and rearward (radially outward from the cylindrical portion 30A) from the flange portion 30B of the operation plate 34. A rotational force transmission part 30E serving as a transmission part bent to the right is provided at the tip of the protruding piece 30D. In other words, the rotational force transmission part 30E is formed in a generally rectangular plate shape with its plate thickness direction aligned with the radial direction of the cylindrical portion 30A.

[0018] The flange portion 30B of the right operation plate 32 is provided with a pair of restricting protrusions 30F as restricting portions that constitute a rotation restricting mechanism 70, which will be described later. The restricting protrusions 30F are arranged spaced apart on one side and the other side of the rotational force transmission portion 30E in the direction of rotation of the operation member 30. The restricting protrusions 30F are formed in a substantially quarter-circular disk shape and protrude radially outward from the flange portion 30B. Specifically, the restricting protrusions 30F include a straight portion 30G that extends linearly radially outward from the flange portion 30B, and a curved portion 30H that curves in an arc shape radially inward from the flange portion 30B as it extends from the tip of the straight portion 30G toward one side or the other side in the direction of rotation of the operation member 30.

[0019] The restricting protrusion 30F is located radially inward of the cylindrical portion 30A relative to the rotational force transmitting portion 30E. That is, when viewed from the left-right direction, the distance L1 (see FIG. 2) between the axis AL and the rotational force transmitting portion 30E is set to be longer than the distance L2 (see FIG. 2) between the axis AL and the restricting protrusion 30F. The restricting protrusion 30F is located adjacent to the right side of the base end of the protruding piece 30D. The restricting protrusion 30F located on one side of the rotational force transmitting portion 30E in the rotational direction of the operating member 30 is referred to as the first restricting protrusion 30F1, and the restricting protrusion 30F located on the other side of the rotational force transmitting portion 30E in the rotational direction of the operating member 30 is referred to as the second restricting protrusion 30F2.

[0020] (Regarding the sickle operating member 40) As shown in FIG. 2, the sickle actuating member 40 is formed in a generally Y-shaped plate shape with its thickness extending in the left-right direction. Specifically, the sickle actuating member 40 includes a main body 42 that forms the rear portion of the sickle actuating member 40 and an arm 44 that forms the front portion of the sickle actuating member 40. When viewed from the left-right direction, the main body 42 is formed in a generally C-shaped plate shape that opens obliquely upward and rearward. Specifically, the main body 42 has an engagement recess 42A that penetrates in the left-right direction, and the engagement recess 42A is formed in a generally inverted Y shape when viewed from the left-right direction. The opening of the engagement recess 42A is formed as an engagement groove 42B, which opens obliquely upward and rearward (toward the radial outside of a support shaft 42C, described later). The arm 44 extends forward from the lower end of the main body 42.

[0021] A pair of left and right support shafts 42C are provided on the main body 42 below the engagement recess 42A. The support shafts 42C are formed in a generally cylindrical shape with the left-right direction as their axial direction and protrude outward in the left-right direction from the main body 42. The support shafts 42C are rotatably supported on the left and right side walls of the case 20. This allows the sickle operating member 40 to be rotatably connected to the case 20 with the left-right direction as its axial direction. When the sickle lock 10 is in the unlocked state, the sickle operating member 40 is located in the unlocking operating position (the position shown in FIG. 2, or more broadly, referred to as the first operating position), and the rotational force transmission portion 30E of the operating member 30 in the unlocking operating position is located adjacent to the opening side of the engagement groove 42B.

[0022] Additionally, a pair of notches 42D for accommodating the restricting protrusion 30F of the operating member 30 is formed on the outer periphery of the main body 42. The pair of notches 42D are spaced apart from each other on either side of the engagement groove 42B in the direction of rotation of the sickle actuating member 40, and are positioned one step lower radially inward of the support shaft 42C from the outer periphery of the main body 42. As a result, a pair of abutment portions 42E are formed on both sides of the width direction of the engagement groove 42B on the outer periphery of the main body 42. The abutment portion 42E on one side of the engagement recess 42A in the direction of rotation of the sickle actuating member 40 (the side indicated by arrow C in FIG. 2) is designated as a first abutment portion 42E1, and the abutment portion 42E on the other side of the engagement recess 42A in the direction of rotation of the sickle actuating member 40 (the side indicated by arrow D in FIG. 3) is designated as a second abutment portion 42E2. When the operating member 30 is in the unlocking operation position, the first restricting protrusion 30F1 of the operating member 30 is disposed adjacent to the first contact portion 42E1 on one side in the rotation direction of the sickle operating member 40, and a part of the first contact portion 42E1 is disposed adjacent to the right side of the protruding piece 30D of the operating member 30. In other words, the first contact portion 42E1 and the protruding piece 30D overlap in the left-right direction.

[0023] As shown in FIG. 5B, when the operating member 30 is rotated from the unlocking operation position to the locking operation position, the rotational force transmission portion 30E of the operating member 30 is inserted into the engagement groove 42B of the sickle actuating member 40 and engages with one side surface of the engagement groove 42B. As a result, the rotational force of the operating member 30 is transmitted to the sickle actuating member 40, causing the sickle actuating member 40 to rotate in one direction in the rotational direction. When the rotational force transmission portion 30E engages with the engagement groove 42B, the first restricting protrusion 30F1 of the operating member 30 is positioned away from the first abutment portion 42E1 in one direction in the rotational direction. Then, as shown in FIGS. 3 and 6B, when the operating member 30 is rotated to the locking operation position, the rotational force from the operating member 30 causes the sickle actuating member 40 to be positioned in the locking operation position (the position shown in FIGS. 3 and 6B, which is an element that may be broadly understood as the second actuating position).

[0024] When the sickle operating member 40 is positioned closer to the locking operation position than an intermediate position between the unlocking operation position and the locking operation position, the sickle operating member 40 is biased toward one side in the rotational direction by a biasing spring 64 (described later). On the other hand, when the sickle operating member 40 is positioned closer to the unlocking operation position than the intermediate position, the biasing spring 64 biases the sickle operating member 40 toward the other side in the rotational direction. Therefore, when the sickle operating member 40 rotates from the unlocking operation position to the locking operation position, the sickle operating member 40 passes through the intermediate position, and the biasing force of the biasing spring 64 causes the sickle operating member 40 to rotate to the locking operation position (unlocking operation position). When the operating member 30 is in the locking operation position, the second restricting protrusion 30F2 of the operating member 30 is positioned adjacent to the second abutting portion 42E2 on the other side in the rotational direction of the sickle operating member 40, and the rotational force transmitting portion 30E is positioned adjacent to the opening side of the engagement groove 42B. Furthermore, when the operating member 30 is in the locking operation position, a part of the second abutment portion 42E2 is disposed adjacent to the right side of the protruding piece 30D of the operating member 30. That is, the second abutment portion 42E2 and the protruding piece 30D overlap in the left-right direction.

[0025] Although not shown, when the operating member 30 rotates from the locking operation position to the unlocking operation position, the rotational force transmission portion 30E of the operating member 30 is inserted into the engagement groove 42B of the sickle actuating member 40 and engages with the other side of the engagement groove 42B, transmitting the rotational force of the operating member 30 to the sickle actuating member 40. This causes the sickle actuating member 40 to rotate from the locking operation position to the other rotational direction (toward the unlocking operation position). Furthermore, when the sickle actuating member 40 passes through the intermediate position, the urging force of the urging spring 64 causes the sickle actuating member 40 to rotate to the unlocking operation position. In other words, the sickle actuating member 40 rotates back and forth around the axis of the support shaft 42C as the rotational force of the operating member 30 is transmitted. The rotation of the sickle actuating member 40 from the unlocking operation position to the locking operation position is referred to as the forward rotation of the sickle actuating member 40.

[0026] Additionally, the case 20 is provided with a second stopper 20C (an element that can be broadly understood as a stopper), which is formed in a generally cylindrical shape with its axis extending in the left-right direction. When the sickle actuating member 40 is in the unlocking position, the main body 42 of the sickle actuating member 40 abuts against the second stopper 20C, restricting rotation of the sickle actuating member 40 in the other direction (see FIG. 2). When the sickle actuating member 40 is in the locking position, the arm 44 of the sickle actuating member 40 abuts against the second stopper 20C, restricting rotation of the sickle actuating member 40 in one direction. In other words, the rotation range of the sickle actuating member 40 is restricted by the second stopper 20C.

[0027] (About Link 50) As shown in Figure 2, the link 50 is formed in a generally elongated plate shape with its thickness direction in the left-right direction and extends generally in the front-rear direction. The link 50 is disposed in front of the sickle actuating member 40, and its rear end is rotatably connected to the front end of the arm portion 44 of the sickle actuating member 40 by a link pin 52 whose axial direction is in the left-right direction. A pair of left and right link shafts 54 is provided at the front end of the link 50. The link shafts 54 are formed in a generally stepped cylindrical shape with their axial direction in the left-right direction and extend outward from the link 50 in the left-right direction. The diameter of the tip end of the link shaft 54 ​​is set smaller than the diameter of the base end of the link shaft 54.

[0028] (Regarding the sickle member 60) The sickle member 60 is formed in a plate shape with its thickness in the left-right direction and extends in the up-down direction. A pair of left and right support shafts 60A are provided on the upper part of the sickle member 60. The support shafts 60A are formed in a generally cylindrical shape with their axial direction in the left-right direction and extend outward in the left-right direction from the sickle member 60. The sickle member 60 is disposed in front of the sickle operating member 40, and the support shafts 60A are rotatably supported on the left and right side walls of the case 20.

[0029] A connecting hole 60B is formed in the upper part of the sickle member 60, above the support shaft 60A. The connecting hole 60B is formed as a generally elongated hole with the vertical direction as the longitudinal direction. The base end of the link shaft 54 ​​is movably inserted into the connecting hole 60B. As a result, the sickle member 60 is connected to the sickle operating member 40 via the link 50. As the sickle operating member 40 rotates back and forth, the sickle member 60 rotates about the support shaft 60A, changing the position of the sickle member 60. Specifically, when the operating member 30 is in the unlocking operation position, the sickle member 60 is in the unlocked state shown in FIG. 2. When the operating member 30 is in the locking operation position, the sickle member 60 is rotated 90 degrees clockwise from the unlocked state to the locked state as viewed from the right (see FIG. 3).

[0030] In addition, guide grooves 20D are formed through the left and right side walls of the case 20. The guide grooves 20D are formed in a generally elongated hole shape and extend in a direction that slopes upward toward the front when viewed from the left-right direction. The upper end of the guide groove 20D is bent upward, and the lower end of the guide groove 20D is bent rearward. When the sickle member 60 is in the unlocked state, the tip of the link shaft 54 ​​is positioned at the upper end of the guide groove 20D, restricting movement of the link shaft 54 ​​in the front-to-rear direction. Thus, when the sickle member 60 is in the unlocked state, rotation of the sickle member 60 is restricted by the link shaft 54 ​​and the guide groove 20D. As a result, rotation of the sickle actuating member 40, which is connected to the link 50, in the other rotational direction is also restricted. On the other hand, when the sickle member 60 is in the locked state, the tip of the link shaft 54 ​​is positioned at the lower end of the guide groove 20D, restricting movement of the link shaft 54 ​​in the up-and-down direction. As a result, when the sickle member 60 is in the locked state, rotation of the sickle member 60 is restricted by the link shaft 54 ​​and the guide groove 20D (see Figure 3). As a result, rotation of the sickle actuating member 40, which is connected to the link 50, in one direction is also restricted. Note that when the sickle actuating member 40 rotates back and forth, the link shaft 54 ​​moves along the longitudinal direction of the guide groove 20D, and the position of the link 50 is determined.

[0031] An engagement protrusion 60C that protrudes forward is provided at the lower end of the sickle member 60. When the sickle member 60 is in the unlocked state, the engagement protrusion 60C is positioned so as not to protrude forward from the opening 20A of the case 20 and the communication hole 22A of the decorative panel 22. On the other hand, when the sickle member 60 is in the locked state, the sickle member 60 protrudes forward from the opening 20A and the communication hole 22A, and the engagement protrusion 60C engages with the sliding door strike 84 of the door frame 82 (see FIG. 3).

[0032] A locking device 62 is provided below the sickle member 60. The locking device 62 has a locking engagement portion 62A, which is configured to be movable in the vertical direction. The locking engagement portion 62A is disposed below the sickle member 60 and engages with the lower end of the sickle member 60. This prevents the sickle member 60 from switching from an unlocked state to a locked state. The locking device 62 has a trigger 62B, which protrudes forward from the decorative panel 22. When the sliding door 80 is in the closed position, the trigger 62B is pressed against the door frame 82 and moves backward, thereby lowering the locking engagement portion 62A and disengaging the locking engagement portion 62A from the sickle member 60. In other words, when the sliding door 80 is in the closed state, the sickle member 60 can be switched from an unlocked state to a locked state.

[0033] A biasing spring 64 is provided between the sickle member 60 and the link 50. The biasing spring 64 is a torsion spring. One end of the biasing spring 64 is engaged with the support shaft 60A of the sickle member 60, and the other end of the biasing spring 64 is engaged with the link shaft 54. The biasing force of the biasing spring 64 acts on the sickle operating member 40 via the link 50. As described above, when the sickle operating member 40 is positioned closer to the locking operating position than the intermediate position, the biasing spring 64 biases the sickle operating member 40 in one direction of rotation. On the other hand, when the sickle operating member 40 is positioned closer to the unlocking operating position than the intermediate position, the biasing spring 64 biases the sickle operating member 40 in the other direction of rotation. In other words, the biasing spring 64 is configured as a so-called center-over spring.

[0034] (Regarding the rotation restriction mechanism 70) 2 and 3, the rotation restricting mechanism 70 includes a pair of restricting protrusions 30F (first restricting protrusion 30F1 and second restricting protrusion 30F2) of the operating member 30 and a pair of contact portions 42E (first contact portion 42E1 and second contact portion 42E2) of the sickle operating member 40. As described above, when the operating member 30 is in the unlocking operation position, the first restricting protrusion 30F1 is disposed adjacent to the first contact portion 42E1 on one side of the rotation direction of the sickle operating member 40, restricting rotation of the sickle operating member 40 in one direction (the forward direction). When the operating member 30 is in the locking operation position, the second restricting protrusion 30F2 is disposed adjacent to the second contact portion 42E2 on the other side of the rotation direction of the sickle operating member 40, restricting rotation of the sickle operating member 40 in the other direction (the backward direction). That is, in the rotation restricting mechanism 70, the first restricting protrusion 30F1 and the first abutment portion 42E1 form a pair to restrict the forward rotation of the sickle operating member 40 when the operating member 30 is in the unlocking operation position. Also, in the rotation restricting mechanism 70, the second restricting protrusion 30F2 and the second abutment portion 42E2 form a pair to restrict the backward rotation of the sickle operating member 40 when the operating member 30 is in the locking operation position. Therefore, when the operating member 30 is in the unlocking operation position or the locking operation position, the rotation restricting mechanism 70 maintains the state in which the rotational force transmitting portion 30E is positioned on the opening side of the engagement groove portion 42B.

[0035] (Action and effect) Next, the operation and effects of this embodiment will be described.

[0036] 2 and 5(A), when the sickle member 60 of the sickle lock 10 is in the unlocked state, the operating member 30 is disposed in the unlocking operation position, and the sickle actuating member 40 is disposed in the unlocking operation position. In this state, the rotational force transmission portion 30E of the operating member 30 is disposed on the opening side of the engagement groove portion 42B of the sickle actuating member 40. In addition, the first restricting protrusion portion 30F1 of the operating member 30 is disposed adjacent to the first abutment portion 42E1 of the sickle actuating member 40 on one side in the rotational direction of the sickle actuating member 40. Furthermore, the biasing spring 64 biases the sickle actuating member 40 toward the other side in the rotational direction.

[0037] When the thumb turn 86 or the key cylinder is operated, a rotational force, which is an operating force, is input to the operating member 30, causing the operating member 30 to rotate in one direction. The rotational force transmission portion 30E of the operating member 30 is inserted into the engagement groove 42B of the sickle actuating member 40 and abuts against one side surface of the engagement groove 42B (see FIG. 5B). This causes the rotational force transmission portion 30E to engage with the sickle actuating member 40, transmitting the rotational force to the sickle actuating member 40. This causes the sickle actuating member 40 to rotate in one direction against the biasing force of the biasing spring 64. Furthermore, when the rotational force transmission portion 30E abuts against the engagement groove 42B, the first restricting protrusion 30F1 of the operating member 30 is positioned away from the first abutment portion 42E1 of the sickle actuating member 40 on one side of the rotational direction of the operating member 30.

[0038] As shown in FIG. 6(A), when the operating member 30 further rotates and reaches a position just before the locking operation position, the engagement between the rotational force transmission unit 30E and the engagement groove 42B is released. Furthermore, when the operating member 30 passes the intermediate position, the biasing spring 64 biases the sickle operating member 40 in one rotational direction. Therefore, as shown in FIG. 6(B), after the engagement between the rotational force transmission unit 30E and the engagement groove 42B is released, the biasing force of the biasing spring 64 rotates the sickle operating member 40 to the locking operation position. Furthermore, the operating member 30 is positioned at the locking operation position by the rotational force from the thumb turn 86 or the key cylinder. When the sickle operating member 40 rotates from the unlocking operation position to the locking operation position, the sickle member 60, which is connected to the sickle operating member 40 by the link 50, rotates approximately 90 degrees clockwise, switching the sickle member 60 to the locked state. When the sickle member 60 is in the locked state, the engaging protrusion 60C of the sickle member 60 is positioned on the front side of the decorative panel 22 and engages with the sliding door strike 84. Also, when the sickle member 60 is in the locked state, the second restricting protrusion 30F2 of the operating member 30 is positioned adjacent to the second abutment portion 42E2 of the sickle operating member 40 on the other side in the rotation direction of the sickle operating member 40.

[0039] 7, if the first restricting protrusion 30F1 and the second restricting protrusion 30F2 were omitted from the operating member 30, the forward (returning) rotation of the sickle actuating member 40 would not be restricted when the sickle lock 10 is in the unlocked (locked) state (FIG. 7 illustrates the unlocked state of the sickle lock 10). For this reason, for example, when the sickle lock 10 is in the unlocked (locked) state, if a malfunction of the sickle actuating member 40 causes the sickle actuating member 40 to rotate in the forward (returning) direction and the engaging groove 42B of the sickle actuating member 40 is positioned so as not to face the torque transmitting part 30E, the torque transmitting part 30E of the operating member 30 would ride on the outer periphery of the sickle actuating member 40 (see the sickle actuating member 40 indicated by the two-dot chain line in FIG. 7). In this case, the operating member 30 is prevented from rotating from the unlocking operation position (locking operation position) to one side (the other side) in the rotational direction, and the sickle member 60 of the sickle lock 10 cannot be smoothly switched to the locked or unlocked state.

[0040] In the hook lock 10, a pair of first and second restricting protrusions 30F1 and 30F2 are provided on the flange portion 30B of the operating member 30. When the operating member 30 is in the unlocking operation position (locking operation position), the sickle operating member 40 abuts against the first restricting protrusion 30F1 (second restricting protrusion 30F2), thereby restricting the forward (returning) rotation of the sickle operating member 40. This maintains the engagement groove 42B of the sickle operating member 40 facing the rotational force transmission portion 30E of the operating member 30. This prevents malfunction of the sickle lock 10 due to the sickle operating member 40 rotating in the forward or return direction. Furthermore, the first restricting protrusion 30F1 and the second restricting protrusion 30F2 are located at positions different from the rotational force transmission portion 30E. As a result, when the operating member 30 is in the unlocking operation position or the locking operation position, the rotational force transmission unit 30E for transmitting the rotational force of the operating member 30 can be made non-contact with the sickle operating member 40. Therefore, deformation of the rotational force transmission unit 30E can be suppressed compared to a configuration in which the rotation of the sickle operating member 40 on the forward and backward directions is restricted by the rotational force transmission unit 30E. As a result, malfunction of the sickle lock 10 caused by deformation of the rotational force transmission unit 30E can be suppressed.

[0041] Furthermore, one first restricting protrusion 30F1 is disposed at a distance from the rotational force transmitting portion 30E on one side of the operating member 30 in the rotational direction, and one second restricting protrusion 30F2 is disposed at a distance from the rotational force transmitting portion 30E on the other side of the operating member 30 in the rotational direction. This improves the ease of assembly of the operating member 30 and the sickle actuating member 40. That is, for example, by forming gear portions on the operating member 30 and the sickle actuating member 40 and meshing the gear portions with each other, the relative rotation of the sickle actuating member 40 with respect to the operating member 30 can be restricted. However, in this case, it is necessary to mesh the sickle actuating member 40 and the operating member 30 while adjusting the orientations of the sickle actuating member 40 and the operating member 30, which may worsen the ease of assembly of the operating member 30 and the sickle actuating member 40. In contrast, in this embodiment, one first restricting protrusion 30F1 is disposed at a distance from the torque transmission unit 30E on one side of the operating member 30 in the rotational direction, and one second restricting protrusion 30F2 is disposed at a distance from the torque transmission unit 30E on the other side of the operating member 30 in the rotational direction. That is, one first restricting protrusion 30F1 or one second restricting protrusion 30F2 is provided on each side of the torque transmission unit 30E in the rotational direction. Therefore, by assembling the operating member 30 and the sickle actuating member 40 so that the first restricting protrusion 30F1 (second restricting protrusion 30F2) of the operating member 30 is disposed at one side of the first abutment portion 42E1 (second abutment portion 42E2) of the sickle actuating member 40 in the rotational direction (the other side of the rotational direction), the operating member 30 and the sickle actuating member 40 can be assembled in the unlocked state or the locked state. Therefore, assembling the operating member 30 and the sickle actuating member 40 can be improved compared to when the operating member 30 and the sickle actuating member 40 have a gear structure. As described above, in this embodiment, the rotational force transmitting part 30E is provided with one first restricting protrusion 30F1 or one second restricting protrusion 30F2 on either side in the rotational direction, so the operating member 30 and the sickle actuating member 40 can be manufactured more inexpensively than when the operating member 30 and the sickle actuating member 40 have a gear structure.

[0042] The positions of the rotational force transmission unit 30E and the first restricting protrusion 30F1 (second restricting protrusion 30F2) are set so that the distance L1 between the axis AL and the rotational force transmission unit 30E is longer than the distance L2 between the axis AL and the tip of the first restricting protrusion 30F1 (second restricting protrusion 30F2). This increases the rotation distance of the sickle actuating member 40 caused by the rotational force transmission unit 30E. As a result, for example, it is not necessary to provide multiple rotational force transmission units 30E on the operating member 30, allowing the operating member 30 to have a simple shape. Furthermore, the amount of protrusion of the first restricting protrusion 30F1 (second restricting protrusion 30F2) from the flange portion 30B can be reduced. This reduces deformation of the first restricting protrusion 30F1 (second restricting protrusion 30F2) that receives the sickle actuating member 40 when the operating member is in the unlocking operation position or the locking operation position.

[0043] Furthermore, the first contact portion 42E1 (second contact portion 42E2) of the sickle operating member 40 is disposed adjacent to the right side of the protruding piece 30D of the operating member 30 and adjacent to the other rotational side (one rotational side) of the first restricting protrusion 30F1 (second restricting protrusion 30F2) of the operating member 30. That is, with the first contact portion 42E1 (second contact portion 42E2) and the protruding piece 30D overlapping in the left-right direction, the first contact portion 42E1 (second contact portion 42E2) faces the first restricting protrusion 30F1 (second restricting protrusion 30F2) in the rotational direction. Therefore, for example, the first abutment portion 42E1 (second abutment portion 42E2) and the first regulating protrusion portion 30F1 (second regulating protrusion portion 30F2) can be arranged opposite each other in the rotational direction while suppressing positional misalignment between the first abutment portion 42E1 (second abutment portion 42E2) and the first regulating protrusion portion 30F1 (second regulating protrusion portion 30F2) in the left-right direction.

[0044] Furthermore, when the sickle member 60 is in the unlocked state (locked state), the first restricting protrusion 30F1 (second restricting protrusion 30F2) is disposed adjacent to the first abutment portion 42E1 (second abutment portion 42E2) on one side (the other side) in the rotation direction of the sickle operating member 40, and when the rotational force transmission portion 30E engages with the engagement groove portion 42B during rotation of the operating member 30, the first restricting protrusion 30F1 (second restricting protrusion 30F2) is spaced away from the first abutment portion 42E1 (second abutment portion 42E2) to one side (the other side) in the rotation direction of the operating member 30. Therefore, interference between the first restricting protrusion 30F1 (second restricting protrusion 30F2) and the first abutment portion 42E1 (second abutment portion 42E2) can be suppressed during rotation of the operating member 30. Therefore, even if the first restricting protrusion 30F1 (second restricting protrusion 30F2) is provided separately from the rotational force transmitting portion 30E, the operating member 30 can be rotated satisfactorily.

[0045] In this embodiment, the first restricting protrusion 30F1 and the second restricting protrusion 30F2 are provided on the operating member 30, but one of the first restricting protrusion 30F1 and the second restricting protrusion 30F2 may be omitted from the operating member 30.

[0046] Furthermore, the present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention. [Explanation of symbols]

[0047] 10 sickle lock 30 Operating member 30A cylindrical part 30B flange 30D protruding piece 30E Rotational force transmission part (transmission part) 30F Restriction protrusion (restriction part) 40 Sickle operating member 42B Engagement groove (groove) 42E Contact part 60 Sickle Parts AL axis L1 Distance between the axis and the transmission part L2 Distance between the axis and the tip of the restrictor

Claims

1. an operating member that rotates reciprocally between a first operating position and a second operating position around an axis extending in a predetermined direction when a rotational force is input; a sickle operating member that reciprocates around its axial direction in the predetermined direction by the rotational force transmitted from the operating member; a sickle member connected to the sickle operating member and switched between a locked state and an unlocked state by the reciprocating rotation of the sickle operating member; a groove formed on the outer periphery of the sickle actuating member and opening in a direction perpendicular to the rotation direction of the sickle actuating member; a transmission part provided on the operating member, the transmission part being disposed on an opening side of the groove part in the first operating position and the second operating position, the transmission part being inserted into the groove part and engaging with the groove part when the operating member is rotated to transmit the rotational force to the sickle actuating member; a restricting portion that is provided on the operating member and disposed at a position different from the transmission portion, and that restricts rotation of the sickle actuating member in at least one of the forward and backward directions when the sickle actuating member abuts against the restricting portion; A sickle lock with a lock.

2. 2. The hook lock according to claim 1, wherein one of the regulating portions is arranged spaced apart on both sides of the transmission portion in the rotational direction of the operating member, or one of the regulating portions is arranged spaced apart on one side or the other side of the transmission portion in the rotational direction of the operating member.

3. The operating member is a cylindrical portion centered on the axis; a flange portion protruding radially outward from an outer periphery of the cylindrical portion; The invention comprises: the restricting portion protrudes radially outward from the flange portion of the cylindrical portion, 2. The hook lock according to claim 1, wherein the distance between the axis and the transmission part is longer than the distance between the axis and the tip of the restriction part.

4. the operating member has a protruding piece that protrudes radially outward from the flange portion of the cylindrical portion, and the transmission portion is bent at a tip end of the protruding piece toward one side in the predetermined direction, The sickle lock according to claim 3, wherein the sickle operating member has an abutment portion configured to be able to abut against the regulating portion, and in the first operating position and the second operating position, the abutment portion is arranged adjacent to one side of the protruding piece in the predetermined direction.

5. the restricting portion is disposed adjacent to the abutting portion in the rotational direction of the sickle actuating member, 5. The hook lock according to claim 4, wherein when the transmission portion engages with the groove portion during rotation of the operating member, the restriction portion is spaced apart from the abutment portion.

Images