Clamping device

Abstract

Provided is a locking device for locking a sliding door, the locking device suppressing collision sound when a lever having a striker shaft returns to a position before locking without providing a cushioning material or the like. A striker unit (10) of a locking device (1) is provided with: a base (11); a lever (12) that rotates between a first position when the locking is released and a second position when the locking is performed; and a biasing member (14) that biases the lever toward the first position side. The biasing member is provided with: a first end (14A); a second end (14B); and a biasing section (14C) that connects the first end and the second end. The base (11) is provided with: a first circular hole (11B) into which the first end enters; and a first arcuate hole (11C) into which the second end enters. The rod is provided with: a second arcuate hole (12B) into which the first end enters; and a second circular-arc-shaped hole (12C) into which the second end enters. The second circular-arc-shaped hole is provided with a second side end portion (12B1) which abuts against the first end when the rod is located at the first position.

Description

Technical Field

[0001] This invention relates to a locking device for locking a sliding door in the fully open position of a vehicle's sliding door. Background Technology

[0002] Patent document 1 describes a vehicle comprising: a body having a door opening and a sliding door for opening and closing the door opening, the body having a striker shaft disposed near the lower end and the rear end of the door opening.

[0003] In addition, the sliding door has: a door body; a lower arm extending inward in the width direction from near the lower end and near the front end of the door body; and a locking mechanism disposed at the top end of the lower arm.

[0004] Furthermore, when the sliding door is positioned in the fully open position, with the door opening fully open, the locking mechanism engages with the striker shaft, and the sliding door is restrained relative to the vehicle body in the fully open position.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent document 1: Japanese Patent Application Publication No. 2009-102862.

[0008] The technical problem that the invention aims to solve

[0009] However, in the case of the structure described above, when the vehicle body opens and closes the sliding door to the door opening, space is needed to avoid interference with the lower arm and locking mechanism. In order to provide this space, there are concerns that the interior space of the vehicle and the space under the floor of the vehicle will be narrowed in the width direction.

[0010] Therefore, in order to suppress the narrowing of space in the width direction of the vehicle, the following structure was studied: a rod was provided to rotate in a manner that allows the striker shaft to be located in a locking position based on the locking mechanism, and the striker shaft was provided on the rod.

[0011] Therefore, when locking via the locking mechanism, the latch of the locking mechanism may not be located inside the vehicle body, thus suppressing the space used to avoid interference.

[0012] However, this time a new problem arose: when the released lever returned to its original position, it collided with the base of the rotatable support lever, producing a knocking sound.

[0013] In addition, if cushioning materials are used to suppress impact noise, the manufacturing cost will increase. Summary of the Invention

[0014] The present invention was made in view of the following, and one object of it is to provide a locking device for locking a sliding door that suppresses the collision noise when a rotatable rod with a striker shaft returns to its pre-locking position without the need for a buffer material or the like.

[0015] Technical means for solving technical problems

[0016] The locking device of the present invention locks the sliding door in the fully open position of the vehicle's sliding door, wherein,

[0017] The locking device includes:

[0018] A firing pin unit, disposed on the side of the vehicle body, and having a firing pin shaft; and

[0019] A latching mechanism, disposed on the side of the sliding door, locks the striker shaft in the fully open position.

[0020] The firing pin unit includes:

[0021] The base is located on the side of the vehicle body;

[0022] A rod having the firing pin shaft, the rod being rotatable between a first position when the firing pin shaft is released from locking and a second position when it is locked; and

[0023] A force-applying component applies force to the rod towards the first position side.

[0024] The force-applying component includes:

[0025] First end;

[0026] The second end; and

[0027] The force-applying part connects the first end and the second end.

[0028] The base has:

[0029] A first circular hole, the first circular hole receiving the first end; and

[0030] A first arc-shaped hole is provided to receive the second end, which is movable within the first arc-shaped hole as the rod rotates.

[0031] The rod has:

[0032] A second arc-shaped hole, which receives the first end, the first end being movable within the second arc-shaped hole as the rod rotates; and

[0033] A second circular hole, which receives the second end.

[0034] The second arc-shaped hole has a second side end that abuts against the first end when the rod is in the first position.

[0035] The effects of the invention

[0036] According to the present invention, a locking device is provided for locking a sliding door that suppresses the collision noise when a rotatable rod with a striker shaft returns to its pre-locking position without the need for a buffer material or the like. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of a vehicle equipped with the locking device according to the first embodiment of the present invention.

[0038] Figure 2 This is a top view illustrating the locking device according to the first embodiment of the present invention.

[0039] Figure 3 This is a partially exploded perspective view of the latching mechanism according to the first embodiment of the present invention.

[0040] Figure 4 This is a diagram showing the state of the latch drive unit before latching according to the first embodiment of the present invention.

[0041] Figure 5 This is a diagram showing the state of the latch drive unit after latching according to the first embodiment of the present invention.

[0042] Figure 6 This is a top view of the firing pin unit in the state before latching according to the first embodiment of the present invention.

[0043] Figure 7 This is a top view of the firing pin unit showing the latched state according to the first embodiment of the present invention.

[0044] Figure 8 From Figure 6 An exploded perspective view of the firing pin unit of the first embodiment of the present invention, viewed from direction A.

[0045] Figure 9 This is a top view showing the base of the first embodiment of the present invention.

[0046] Figure 10 This is a top view showing the rod according to the first embodiment of the present invention.

[0047] Figure 11 This indicates that the firing pin shaft of the first embodiment of the present invention is directed towards the latch pawl portion of the latch drive unit. Figure 4 and Figure 5 The diagram shows the force applied in the opposite direction to arrow X.

[0048] Figure 12 This is a diagram illustrating the technical problem to be solved by the locking device of the second embodiment of the present invention, which locks the sliding door of a vehicle in the fully open position.

[0049] Figure 13 This is a diagram showing the torsion spring as a force-applying component, as shown in the first embodiment of this invention.

[0050] Figure 14 This is an enlarged view of the vicinity of the first end of the locking device that locks the sliding door in the fully open position of the sliding door of the vehicle according to the second embodiment of the present invention.

[0051] Figure 15 This is an enlarged view of the area near the second end of the locking device that locks the sliding door in the fully open position of the sliding door of a vehicle, according to the second embodiment of the present invention.

[0052] Symbol Explanation

[0053] 1... Locking device, 10... Strike pin unit, 11... Base, 11B... First circular hole, 11C1... First other end, 11C... First arc-shaped hole, 12... Rod, 12B... Second arc-shaped hole, 12B1... Second one end, 12C... Second circular hole, 14... Force application component, 14A... First end, 14B... Second end, 14C... Force application part, 20... Latch mechanism, C... Vehicle, C1... Body, C2... Sliding door, SS... Strike pin shaft. Detailed Implementation

[0054] Hereinafter, the embodiments for carrying out the present invention (hereinafter referred to as "implementation") will be described in detail with reference to the accompanying drawings.

[0055] Furthermore, in the description of all embodiments, the same elements are labeled with the same numbers or symbols.

[0056] In addition, the scale of the attached drawings differs from the actual scale; they are merely illustrations for easy understanding and cannot guarantee that the same parts will be depicted at the same size across the attached drawings.

[0057] Furthermore, in the accompanying drawings, for ease of observation, sometimes only a portion of parts with multiple identical attributes are labeled with reference symbols.

[0058] <First Implementation Method>

[0059] Reference Figures 1 to 11 This invention describes a locking device 1, which locks the sliding door C2 of vehicle C in the fully open position according to the first embodiment of the invention.

[0060] Furthermore, in the following description, the forward direction of vehicle C is recorded as "front" (front side, forward), the backward direction of vehicle C is recorded as "rear" (rear side, rear), the horizontal direction orthogonal to the forward and backward direction of vehicle C is recorded as "left and right" (left and right), the upper side of vehicle C is recorded as "upper side", and the lower side of vehicle C is recorded as "lower side".

[0061] Furthermore, unless otherwise specified, the descriptions of the front (front side, front), rear (rear side, rear), left and right (left and right), upper side, lower side, etc. of various components installed on vehicle C indicate their state when installed on vehicle C.

[0062] In addition, in the left and right directions of vehicle C, when distinguishing between left and right, the left side when viewed from the rear of vehicle C is recorded as the left side, and the right side when viewed from the rear of vehicle C is recorded as the right side. Unless otherwise specified, the descriptions of the left and right sides of various components installed on vehicle C also indicate the state when they are installed on vehicle C.

[0063] Furthermore, the inner side of vehicle C is described as inner side, and the outer side of vehicle C is described as outer side. Unless otherwise specified, the descriptions of the inner and outer sides of various components installed on vehicle C also indicate the state when installed on vehicle C.

[0064] Figure 1 This is a schematic diagram of a vehicle C equipped with the locking device 1 of the first embodiment of the present invention, showing only the rear seat side of the vehicle C.

[0065] like Figure 1 As shown, vehicle C has a body C1 and a sliding door C2 that is slidably disposed on the body C1.

[0066] Furthermore, the vehicle body C1 has an opening OP for boarding and alighting that opens when the sliding door C2 is slid to the fully open position (left side in the figure).

[0067] In addition, the vehicle body C1 includes: an upper track section UR provided along the upper edge of the opening OP; an intermediate track section MR provided at the middle position in the vertical direction of the vehicle body C1 and behind the opening OP; and a lower track section LR provided along the lower edge of the opening OP.

[0068] On the other hand, the sliding door C2 includes: an upper hinge unit UHU corresponding to the upper track portion, which is located on the upper side of the front side of the sliding door C2; and an intermediate hinge unit MHU corresponding to the intermediate track portion MR, which is located at the middle position in the vertical direction of the sliding door C2 and on the rear side of the sliding door C2.

[0069] In addition, the sliding door C2 has a latching mechanism 20 of the locking device 1 described later. The latching mechanism 20 functions as a lower hinge unit located at the lower position of the front side of the sliding door C2, corresponding to the lower track portion LR.

[0070] Furthermore, the sliding door C2 has a door handle DH for the user to open and close the sliding door C2. Specifically, the door handle DH has an inner door handle IDH for opening and closing the sliding door C2 inside the vehicle and an outer door handle ODH for opening and closing the sliding door C2 outside the vehicle.

[0071] In addition, it may also include a door drive device for driving the sliding door C2 to the fully open and fully closed positions when the door handle DH is operated.

[0072] For example, the door drive device can be a general structure that drives the sliding door C2 by transmitting the power of the electric motor to the sliding door C2 through power transmission components such as cables and pull wires.

[0073] On the other hand, the vehicle body C1 has a firing pin unit 10 of the locking device 1, which will be described later, located behind the lower track section LR.

[0074] Figure 2 This is a top view illustrating the locking device 1 according to the first embodiment of the present invention, showing the locking device 1 located on the right side of vehicle C.

[0075] Furthermore, the structure of the locking device located on the left side of vehicle C is the same. Since the only difference is that the relationship between the parts is symmetrical, the following mainly describes the locking device 1 located on the right side of vehicle C.

[0076] in addition, Figure 2 This indicates the state in which the sliding door C2 moves to the rearward side to the position just before it is about to become fully open, that is, the state just before the locking device 1 is about to lock.

[0077] Furthermore, in Figure 2 In the text, only the guide roller LGR on the lower side of the latching mechanism 20 of the lower track section LR is indicated.

[0078] However, the lower track section LR also has a track that guides a pair of guide rollers UGR on the upper side of the latching mechanism 20.

[0079] Specifically, a track component (not shown) having a track that guides a pair of guide rollers UGR on the upper side of the latching mechanism 20 of the lower track section LR is provided on the vehicle body C1 in such a way that the upper side is covered to form a gap for a part of the latching mechanism 20 to protrude outward.

[0080] The locking device 1 in the first embodiment is a locking device 1 that locks the sliding door C2 of vehicle C in the fully open position, such as... Figure 2 As shown, the locking device 1 includes: a striker unit 10 disposed on the body C1 side of the vehicle C and having a striker shaft SS; and a latching mechanism 20 disposed on the sliding door C2 side and locking the striker shaft SS in the fully open position.

[0081] [Latch mechanism 20]

[0082] Figure 3 This is a partial exploded perspective view of the latching mechanism 20 according to the first embodiment of the present invention.

[0083] like Figure 2 and Figure 3 As shown, the latching mechanism 20 includes: a base 21; and a mounting portion 22, one piece 22A of which is fixed to the base 21, and the other piece 22B of which is fixed to the sliding door C2 (see reference). Figure 2 ); and guide 23, which is configured to rotate relative to base 21 and has guide rollers (guide roller LGR and a pair of guide rollers UGR).

[0084] In addition, the latching mechanism 20 is located between the base 21 and the guide 23, and has a latching part 24 fixed to the base 21.

[0085] like Figure 3 As shown, the latching part 24 includes an upper side plate 24A, a lower side plate 24B that separates from the upper side plate 24A and forms a space between the lower side plate 24A and the upper side plate 24A, and a latching drive part 24C that is disposed in the space between the upper side plate 24A and the lower side plate 24B and performs the operation of latching the striker shaft SS.

[0086] In addition, the upper side plate 24A is fixed to the base 21 by bolts B1 and B2, and the lower side plate 24B is fixed to the base 21 together with the upper side plate 24A at bolt B2 in a manner that clamps between the upper side plate 24A and the base 21.

[0087] Figure 4 This refers to the latch drive unit 24C of the first embodiment of the present invention (see [link]). Figure 3 A diagram showing the state of the device before it is latched.

[0088] Figure 5This refers to the latch drive unit 24C of the first embodiment of the present invention (see [link]). Figure 3 A diagram showing the state after latching.

[0089] In addition, Figure 4 and Figure 5 The diagram of the structure on the side of the firing pin unit 10 is omitted.

[0090] Through the action of the firing pin unit 10 described later, the latch drive unit 24C enters the latched state. However, the details of the linkage action with the firing pin unit 10 will be described below. Here, we will first refer to... Figure 4 and Figure 5 A brief description of the structure and operation of the latch drive unit 24C is provided.

[0091] like Figure 4 and Figure 5 As shown, Figure 3 Specifically, the latch drive unit 24C shown includes: a latch claw 24C1, which is configured to rotate about a first axis 24CR1, the first axis 24CR1 being fixed to an upper side plate 24A (not shown) and a lower side plate 24B (not shown); and a locking part 24C2, which is configured to rotate about a second axis 24CR2, the second axis 24CR2 being fixed to an upper side plate 24A (not shown) and a lower side plate 24B (not shown).

[0092] In addition, both the latch claw portion 24C1 and the locking portion 24C2 are subjected to force by a torsion spring (not shown) in the direction of the arrow X.

[0093] The latching claw portion 24C1 includes: a recess 24C11, which is formed as a space between a pair of claws and receives the firing pin shaft SS (not shown); and a protrusion 24C12, which engages with the locking portion 24C2.

[0094] On the other hand, the locking part 24C2 includes: a protrusion 24C21 that engages with the protrusion 24C12 of the latch claw part 24C1 and is disposed at the top of the locking part 24C2; and a locking part 24C22 that locks the pull wire WR disposed at the base end side of the second shaft 24CR2.

[0095] In addition, the pull cord WR and the door handle DH (see reference) Figure 1 When the door handle DH is operated, the pull cable WR is pulled towards the [connection point]. Figure 4 and Figure 5 The image on the left.

[0096] As explained later, when the sliding door C2 is fully open, the firing pin axis SS moves in the opposite direction to arrow X (in...). Figure 4 and Figure 5 (Observed in a clockwise direction) Force is applied to the latch claw 24C1.

[0097] Then, when the latch pawl 24C1 rotates to Figure 5 In the state shown, the protrusion 24C21 of the locking part 24C2 engages with the protrusion 24C12 of the latch claw part 24C1, and maintains this state.

[0098] That is, the sliding door C2 is locked by the locking device 1 to maintain the fully open position of the sliding door C2 of vehicle C.

[0099] On the other hand, Figure 5 When the door handle DH is in the state of being operated (refer to...) Figure 1 If the pull line WR moves to the left of the diagram, the locking part 24C22 will be pulled to the left of the diagram.

[0100] In this way, because the locking part 24C2 is centered on the second axis 24CR2 in the opposite direction of arrow X (in Figure 4 and Figure 5 When the rotation is clockwise (as observed from the center), the engagement between the protrusion 24C12 of the latch claw 24C1 and the protrusion 24C21 of the locking part 24C2 is released.

[0101] That is, the locking device 1 used to maintain the fully open position of the sliding door C2 is released from locking the sliding door C2, and the sliding door C2 can be closed.

[0102] [Firing pin unit 10]

[0103] Next, the firing pin unit 10 of the first embodiment of the present invention will be described.

[0104] Figure 6 This is a top view of the firing pin unit 10 in the state before latching according to the first embodiment of the present invention.

[0105] Figure 7 This is a top view of the firing pin unit 10 in the latched state according to the first embodiment of the present invention.

[0106] In addition, Figure 6 and Figure 7 The diagram of the structure on side 20 of the latching mechanism is omitted; refer to... Figure 11 The details of the linkage action with the latching mechanism 20 are explained.

[0107] Figure 8 From Figure 6 An exploded perspective view of the firing pin unit 10 of the first embodiment of the present invention, viewed from direction A.

[0108] Figure 9This is a top view of the base 11 according to the first embodiment of the present invention.

[0109] Figure 10 This is a top view showing the rod 12 according to the first embodiment of the present invention.

[0110] like Figure 6 , Figure 7 and Figure 8 As shown, the striker unit 10 includes: a base 11 disposed on the side of the vehicle body C1 (not shown); a rod 12 disposed on the base 11 in a rotatable manner; and a boss 13 that functions as a rotation axis for the rod 12 and rotatably mounts the rod 12 to the base 11.

[0111] In addition, the firing pin unit 10 has a force-applying component 14 that is mounted on the base 11 together with the rod 12 via a boss 13.

[0112] Specifically, such as Figure 8 As shown, the force-applying component 14 is a so-called torsion spring, which has a first end 14A, a second end 14B, and a force-applying part 14C that connects the first end 14A and the second end 14B and applies force to the first end 14A and the second end 14B in the separation direction.

[0113] like Figure 9 As shown, the base 11 includes: a fixing hole 11A for fixing the boss 13; and a first end 14A for receiving the force-applying member 14 (see reference). Figure 6 The first circular hole 11B; and the second end 14B of the force-receiving member 14 formed at a position away from the fixing hole 11A and along the first circular hole 11B (see reference 11B). Figure 6 The first arc-shaped hole 11C is located in the direction of the rotation trajectory of the rod 12 (hereinafter also referred to as the rotation trajectory direction).

[0114] Thus, since the first arc-shaped hole 11C is formed along the rotation trajectory of the rod 12, the second end 14B can move along the first arc-shaped hole 11C as the rod 12 rotates.

[0115] In addition, the first circular hole 11B is located at the first side end 11C2 near the rotation trajectory of the first arc-shaped hole 11C.

[0116] On the other hand, such as Figure 10 As shown, the rod 12 includes: a boss insertion hole 12A through which the shaft portion of the boss 13 passes; a second arc-shaped hole 12B that receives the first end 14A of the force-applying member 14 and is along the rotation trajectory direction of the rod 12 (hereinafter also simply referred to as the rotation trajectory direction); and a second end 14B formed at a position away from the boss insertion hole 12A and receiving the force-applying member 14 (see reference). Figure 6The second circular hole 12C.

[0117] Thus, since the second arc-shaped hole 12B is formed along the rotation trajectory of the rod 12, the first end 14A can move in the second arc-shaped hole 12B as the rod 12 rotates.

[0118] In addition, the second circular hole 12C is located at the second other end 12B2, which is close to the other side of the rotation trajectory of the second arc-shaped hole 12B.

[0119] Additionally, the rod 12 has: a pressing receiving portion 12D disposed on the other side of the boss insertion hole 12A, the second arc-shaped hole 12B and the second circular hole 12C; and a firing pin shaft SS disposed on one side of the boss insertion hole 12A, the second arc-shaped hole 12B and the second circular hole 12C.

[0120] observe Figure 2 As can be seen, the pressing bearing part 12D is the part that receives the pressure from the guide part 23 when the sliding door C2 is in the fully open position and slides further to the right.

[0121] Then, when pressed by the guide 23, the rod 12 rotates around the boss 13 as the rotation center, so that the pressing receiving part 12D approaches the base 11. The firing pin shaft SS moves towards the latch pawl part 24C1 in the direction of arrow X (refer to the arrow). Figure 4 and Figure 5 Apply force in the opposite direction to ).

[0122] Figure 11 The arrow X (referring to the bolt shaft SS of the first embodiment of the present invention pointing to the latch claw portion 24C1 of the latch drive portion 24C) indicates that the bolt shaft SS is aligned with the latch claw portion 24C1 of the latch drive portion 24C. Figure 4 and Figure 5 A diagram showing the situation where a force is applied in the opposite direction to that applied to another object.

[0123] like Figure 11 As shown, when rod 12 rotates about boss 13 as the center of rotation (refer to Y1) so that pressing bearing 12D approaches base 11, the firing pin shaft SS also rotates about boss 13 as the center of rotation and approaches latch pawl 24C1 (refer to Y2). Through firing pin shaft SS, it moves towards arrow X (refer to...). Figure 4 and Figure 5 Force is applied to the latch pawl 24C1 in the opposite direction (see Y3).

[0124] Thus, as previously referred to Figure 5 As explained, the protrusion 24C21 of the locking part 24C2 engages with the protrusion 24C12 of the latch claw part 24C1 and maintains this state.

[0125] That is, the sliding door C2 is locked by the locking device 1 to maintain the fully open position of the sliding door C2 of vehicle C.

[0126] On the other hand, the rod 12 of the firing pin shaft SS, which has the firing pin unit 10, is able to be in a first position when the locking of the firing pin shaft SS is released (see reference). Figure 6 and Figure 11 The state of Z1) and the second position of the timing (refer to) Figure 7 and Figure 11 The rotation method between the Z2 state is set on the base 11.

[0127] Furthermore, since the first end 14A of the force-applying component 14 is received by the first circular hole 11B of the base 11 (fixed to the base 11 of the vehicle body C1) provided on the side of the vehicle body C1 (not shown), the first end 14A becomes a fixed end.

[0128] Here, as Figure 6 and Figure 7 As shown, a second arc-shaped hole 12B corresponding to the first circular hole 11B of the base 11 is provided on the rod 12. Therefore, when the rod 12 is from... Figure 6 state towards Figure 7 When rotating in the state, it can rotate without being obstructed by the first end 14A of the force-applying member 14, which becomes the fixed end.

[0129] Similarly, the base 11 is provided with a first arc-shaped hole 11C corresponding to the second circular hole 12C of the rod 12. Therefore, when the rod 12... Figure 6 state towards Figure 7 When rotating in the state, the second end 14B of the force-applying member 14, which can rotate together with the second circular hole 12C of the rod 12, can rotate without obstructing the movement of the second end 14B.

[0130] Furthermore, since the second end 14B of the force-applying component 14 rotates together with the second circular hole 12C, it is sometimes referred to as the actuating end.

[0131] Furthermore, the force-applying part 14C of the force-applying member 14 applies force in a manner that separates the first end 14A and the second end 14B in the direction of rotation trajectory. However, as described above, since the first end 14A is a fixed end, the force-applying member 14 pushes the rod 12 toward the first position (refer to...). Figure 6 and Figure 11 (The Z1 state) is subjected to lateral force.

[0132] Therefore, when the engagement between the protrusion 24C12 of the latch claw portion 24C1 and the protrusion 24C21 of the locking portion 24C2 is released, the lever 12 can then... Figure 7 The state shown becomes Figure 6 Rotate in the manner shown.

[0133] Thus, when rod 12 rotates, if rod 12 collides with base 11, it will produce a loud collision sound.

[0134] Therefore, in the first embodiment, as Figure 6 As shown, the second arc-shaped hole 12B is provided when the rod 12 is in the first position (refer to...). Figure 6 and Figure 11 When in the Z1 state, the second side end 12B1, which abuts against the first end 14A of the force-applying component 14 on the side of the rotation trajectory direction, can set the first position to the position just before the rod 12 collides with the base 11.

[0135] In addition, such as Figure 6 As shown, the first arc-shaped hole 11C is provided when the rod 12 is in the first position (refer to...). Figure 6 and Figure 11 When in the state of Z1, the first other end 11C1 on the other side of the rotation trajectory direction abuts against the second end 14B of the force-applying component 14.

[0136] Thus, by further enabling the lever 12 to be in the first position (refer to...) Figure 6 and Figure 11 When in the Z1 state, the first other end 11C1 on the other side of the rotation trajectory direction that abuts against the second end 14B of the force-applying component 14 can more stably stop the rod 12 in the first position before it collides with the base 11.

[0137] Furthermore, in the aforementioned structure, when rod 12 returns to the first position (refer to...) Figure 6 and Figure 11 When in the state of Z1, the second side end 12B1 of the second arc-shaped hole 12B collides with the first end 14A of the force-applying member 14. However, since the energy of the collision is proportional to the mass, it is expected that the collision energy with the first end 14A of the force-applying member 14, which has a smaller mass, is smaller than that with the collision with the rod 12 and the base 11, and the collision sound can be suppressed.

[0138] Furthermore, since the first end 14A of the force-applying member 14 is formed of the material constituting the force-applying member 14, it is expected to function elastically in a way that mitigates the impact force during a collision, thereby suppressing the impact sound.

[0139] Then, as lever 12 returns to the first position (refer to...) Figure 6 and Figure 11When the Z1 state is reached, the second end 14B of the force-applying member 14 collides with the first other end 11C1 of the first arc-shaped hole, thereby dispersing the collision force. Since the second end 14B of the force-applying member 14 is a part formed by the material constituting the force-applying member 14, it is also expected to function elastically in a way that mitigates the collision force during the collision, thus further suppressing the collision sound.

[0140] Furthermore, when lever 12 is in the first position (refer to...) Figure 6 and Figure 11 When in the Z1 state, the rod 12 is in a state where its movement is restricted by the first end 14A and the second end 14B of the force-applying member 14, and therefore it can be more stably positioned in the first position compared to the case where it is restricted only by the first end 14A of the force-applying member 14.

[0141] Therefore, it is possible to suppress the shaking of rod 12 caused by vibrations of vehicle C.

[0142] <Second Implementation Method>

[0143] Next, the locking device 1 that locks the sliding door C2 of vehicle C in the fully open position according to the second embodiment of the present invention will be described.

[0144] The locking device 1 of the second embodiment has the same basic structure as the locking device 1 of the first embodiment, except that the structure of the base 11 and the rod 12 is different. Therefore, the following mainly describes the differences from the first embodiment, and the similarities are sometimes omitted.

[0145] Figure 12 This diagram illustrates the technical problem solved by the locking device 1, which locks the sliding door C2 of vehicle C in the fully open position according to the second embodiment of the present invention, and is related to... Figure 6 The corresponding diagram.

[0146] For example, such as Figure 12 As shown, when the actual first circular hole 11B (RL) formed relative to the first circular hole 11B (DC) at the design center becomes smaller, the first end 14A of the force-applying member 14 becomes a state where it does not abut against the second side end 12B1 of the second arc-shaped hole 12B of the rod 12, and the rod 12 becomes a state where it is positioned only by the force applied by the second end 14B of the force-applying member 14, making it easy to shake.

[0147] Furthermore, while the above description illustrates an example of the first circular hole 11B, the same applies to other holes. In order to suppress wobbling, when the rod 12 is in the first position where the firing pin shaft SS is not locked, it is preferable that the first end 14A and the second end 14B of the force-applying member 14 are in contact with both the rod 12 and the base 11.

[0148] For example, such as Figure 12 As shown, even if the second end 14B of the force-applying member 14 cannot move to its original position due to the manufacturing error of the first arc-shaped hole 11C, even if there is no manufacturing error on the first end 14A side, the first end 14A of the force-applying member 14 will not abut against the second side end 12B1 of the second arc-shaped hole 12B of the rod 12 because the rod 12 cannot rotate to the specified position. The rod 12 will be positioned only by the force applied by the second end 14B of the force-applying member 14, and is prone to wobbling.

[0149] Therefore, as a second embodiment, a method for suppressing the easy wobbling of the rod 12 due to such manufacturing errors will be described below.

[0150] Figure 13 This is a diagram showing the force-applying component 14, i.e., the torsion spring, as shown in the first embodiment of the present invention.

[0151] like Figure 13 As shown, the distance between the first end 14A and the second end 14B of the torsion spring, which is the force-applying component 14, tends to increase from D1 to D2 as it moves away from the force-applying part 14C, and it is assumed that it can be easily manufactured even if it is actively manufactured.

[0152] Furthermore, since the distance between the first end 14A and the second end 14B gradually widens as it moves away from the force-applying part 14C, even if the edge of the component on the side away from the force-applying part 14C is located further outward in the force-applying direction than the component closer to the force-applying part 14C, it can still abut against the force due to the gradually widening shape of the first end 14A and the second end 14B.

[0153] Figure 14 This is an enlarged view of the first end 14A of the locking device 1 that locks the sliding door C2 in the fully open position of the sliding door C2 of the vehicle C in the second embodiment of the present invention.

[0154] In addition, Figure 14 In the middle, the top side shows a sectional view, and the bottom side, within a quadrilateral frame, shows a top view of the first circular hole 11B and the second arc-shaped hole 12B to indicate the position of the section.

[0155] In the second embodiment, similar to the first embodiment, the force-applying part 14C of the force-applying member 14 is located on the side of the rod 12.

[0156] In this case, since the first end 14A of the force-applying member 14 extends outward in the direction of force application on the side of the base 11, therefore, as Figure 14As shown, the first circular hole 11B is a hole with a radius R2 that is larger than the radius R (referring to the radius of curvature R1) of the end shape of the second side end 12B1 of the second arc-shaped hole 12B. Based on manufacturing errors, it is preferable to set the first circular hole 11B to be larger.

[0157] For example, preferably, the radius R2 of the first circular hole 11B is larger than the radius of curvature R1 of the end shape R of the second side end 12B1 of the second arc-shaped hole 12B within a range of 0.4 mm.

[0158] In addition, such as Figure 14 As shown, in order to actively utilize this gradual expansion, it is preferable that the surface on the base 11 side of the second arc-shaped hole 12B is chamfered.

[0159] Furthermore, when the force-applying part 14C of the force-applying component 14 is located on the base 11 side, the gradually expanding relationship is reversed. Therefore, it is only necessary to change the relationship between the structure of the first circular hole 11B and the second arc-shaped hole 12B.

[0160] That is, when the force-applying part 14C of the force-applying member 14 is located on the base 11 side, the radius R of the end shape of the second side end 12B1 of the second arc-shaped hole 12B is larger than the radius of the first circular hole 11B, and the surface of the rod 12 side of the first circular hole 11B can be chamfered.

[0161] Figure 15 This is an enlarged view of the second end 14B near the first position of the locking device 1 that locks the sliding door C2 in the fully open position of the sliding door C2 of the vehicle C according to the second embodiment of the present invention.

[0162] Since the second end 14B of the force-applying component 14 also extends outward in the direction of force application on the base 11 side, just like the first end 14A, therefore... Figure 15 As shown, preferably, the radius R (referring to the radius of curvature R4) of the end shape of the first other side end 11C1 of the first arc-shaped hole 11C is larger than the radius R3 of the second circular hole 12C. Based on manufacturing error, the first other side end 11C1 of the first arc-shaped hole 11C is set to be larger.

[0163] For example, preferably, the radius of curvature R4 of the end shape R of the first other side end 11C1 of the first arc-shaped hole 11C is larger than the radius R3 of the second circular hole 12C within a range of 0.4 mm.

[0164] In addition, such as Figure 15 As shown, in order to actively utilize this gradual expansion, the surface of the base 11 side of the second circular hole 12C is preferably chamfered.

[0165] However, it is also possible to make only the first other end 11C1 of the first arc-shaped hole 11C larger, but it can be said that the overall structure is easier to manufacture.

[0166] Therefore, it is preferable that the first arc-shaped hole 11C is formed with a width that is twice the radius of curvature R4 of the end shape of the first other end 11C1.

[0167] That is, preferably, the first arc-shaped hole 11C is an arc-shaped hole with a radius of R4 that can be continuously connected along the rotation trajectory of the rod 12.

[0168] Furthermore, the same applies to the second arc-shaped hole 12B when the force-applying portion 14C of the force-applying member 14 described earlier is located on the base 11 side. Preferably, the second arc-shaped hole 12B is formed with a width that is twice the radius of curvature of the R of the end shape of the second side end 12B1.

[0169] On the other hand, when the force-applying part 14C of the force-applying member 14 is located on the base 11 side, the relationship of gradual expansion is reversed. Therefore, it is only necessary to change the relationship of the structure of the first arc-shaped hole 11C and the second circular hole 12C.

[0170] That is, the radius of the second circular hole 12C is larger than the R of the end shape of the first arc-shaped hole 11C on the other side, and the surface of the rod 12 side of the first arc-shaped hole 11C is chamfered.

[0171] According to the structure of the second embodiment described above, as mentioned above, based on manufacturing errors, the first end 14A and the second end 14B of the force-applying member 14 can be in contact with both the rod 12 and the base 11, thus suppressing the swaying of the rod 12 when it is in the first position.

[0172] The above description is based on specific embodiments, but the present invention is not limited to the above embodiments. The present invention also includes changes or improvements to the embodiments within the scope of the technology. For those skilled in the art, the description is clear according to the scope of the patent claim.

Claims

1. A locking device for locking a sliding door in the fully open position of a vehicle's sliding door, wherein, The locking device includes: A firing pin unit, disposed on the side of the vehicle body, and having a firing pin shaft; and A latching mechanism, disposed on the side of the sliding door, locks the striker shaft in the fully open position. The firing pin unit includes: The base is located on the side of the vehicle body; A rod having the firing pin shaft, the rod being rotatable between a first position when the firing pin shaft is released and a second position when it is locked; and A force-applying component applies force to the rod towards the first position side. The force-applying component includes: First end; The second end; and The force-applying part connects the first end and the second end. The base has: A first circular hole, the first circular hole receiving the first end; and A first arc-shaped hole is provided to receive the second end, which is movable within the first arc-shaped hole as the rod rotates. The rod has: A second arc-shaped hole, which receives the first end, the first end being movable within the second arc-shaped hole as the rod rotates; and A second circular hole, which receives the second end. The second arc-shaped hole has a second side end that abuts against the first end when the rod is in the first position.

2. The locking device according to claim 1, wherein, The first arc-shaped hole has a first other end portion, which abuts against the second end portion when the rod is in the first position.

3. The locking device according to claim 2, wherein, The force-applying part is located on the side of the rod. The radius of the first circular hole is larger than the radius R of the end shape of the second side end of the second arc-shaped hole. The radius R of the end shape at the first other end of the first arc-shaped hole is larger than the radius of the second circular hole. The base-side surfaces of the second circular hole and the second arc-shaped hole are chamfered.

4. The locking device according to claim 2, wherein, The force-applying part is located on the base side. The radius of the second circular hole is larger than the radius R of the end shape of the first arc-shaped hole on the other side. The radius R of the end shape of the second side end of the second arc-shaped hole is larger than that of the first circular hole. The rod-side surfaces of the first circular hole and the first arc-shaped hole are chamfered.

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