JP2010101080A - Latch apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a latch apparatus which is excellent in its ability to be laid out and which makes possible the setting of a plurality of variations at low cost. <P>SOLUTION: The latch apparatus is provided with a latch mechanism and an open lever. The latch mechanism has an operation bush 43 which engages a striker and releases the engagement state, and the open lever releases the engagement of the striker by the latch mechanism. The open lever is rotated by the first and second latch-opening operation members (an operating handle 71 and a key rod 73), and is engaged with the operation bush 43 of the latch mechanism. The open levers 46A, 46B have an open lever body 47 and attachment parts 54A, 54B. The open lever body 47 has an operation part 49 and a first connection 53. The operation part 49 is engaged with the operation bush 43 of the latch mechanism, and the first connection 53 connects the first latch-opening operation member. The attachment parts 54A, 54B are provided integrally with the open lever body 47 and are formed of another material, and have a second connection 56 which connects the second latch-opening operation member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a latch device for locking a trunk door, a hatchback door, and the like of a vehicle in a closed state.

  A latch device used for a vehicle trunk door, hatchback door, and the like includes a fork for holding a striker provided on a vehicle body side, and a claw that engages the fork and holds the striker in a locked state. Yes. In addition, the latch device includes an operation handle for opening the door and an open lever connected to the key cylinder. When the open lever rotates by operating the operation handle or the key cylinder, the open lever presses the claw, and the claw rotates to disengage the fork, and the fork rotates to open the striker, and the door Is configured to be opened.

Prior art document information relating to this latch device includes the following.
JP 2003-184393 A

  This Patent Document 1 describes a latch device that can further open a door by operating a switch or the like provided in a vehicle. The opening mechanism using the in-vehicle switch includes a motor that is operated by a switch operation and a cam member that is rotationally driven by the motor. Then, the claw of the latch device is rotated by the cam member to open the striker and open the door.

  However, the vehicle is configured such that the type of operation method that allows the door to be opened differs depending on the grade. Therefore, the latch device includes (1) a type that can be opened by an operation handle, a key cylinder, and a switch, (2) a type that can be opened by an operation handle and a key cylinder, and (3) a type that can be opened by an operation handle and a switch. It is necessary to prepare (manufacture).

  And since the open lever of patent document 1 bends one board | plate material by press work and provides two connection parts, restrictions arise in the shape and connection position of a connection part. In addition, these latch devices having different variations need to set the open lever, and the shaft support structure of the cam member and the open lever, respectively, which increases the number of parts and increases the manufacturing cost. .

  The present invention has been made in view of the conventional problems, and an object of the present invention is to provide a latch device that is excellent in layout and can be set with a plurality of variations at low cost.

  In order to solve the above problems, the latch device of the present invention includes a latch mechanism having an operation receiving portion for locking a striker provided on a vehicle body or a door and releasing the locked state, and the operation receiving portion by rotation. And an open lever that releases the lock of the striker by the latch mechanism, and the open lever is rotated by the first and second latch release operation members to engage with the operation receiving portion of the latch mechanism. In the latch device, the open lever includes an open lever body having an operation portion that engages with an operation receiving portion of the latch mechanism, a first connection portion that connects the first latch release operation member, and the open lever. And an additional portion having a second connecting portion that is provided integrally with the lever main body using a different material and connects the second latch opening member.

  According to this latch device, since the open lever is configured by integrally providing the attachment portion having the second connection portion with a separate material with respect to the open lever main body, the shape of the second connection portion is relatively small. Can be configured freely. As a result, the layout of parts can be improved. Moreover, even if there are a plurality of product variations, it is possible to manufacture an open lever using the same open lever body simply by changing the configuration of the attachment portion. Therefore, it becomes possible to manufacture the open lever having the second connecting portion at a low cost.

  In this latch device, the open lever main body is made of metal, and the open lever main body includes a spring mounting portion for mounting one end of a spring that biases the open lever main body toward the initial position before the operation. The part is preferably made of resin, and is integrally formed with the open lever body by insert molding so that the operation part and the spring mounting part are exposed to the outside. In this way, the operating portion that engages with the operation receiving portion of the latch mechanism and the spring mounting portion to which one end of the spring is mounted are provided on the metal open lever body, so that wear and damage due to use are prevented. Can be prevented. Moreover, since the attachment work to an open lever main body is unnecessary, after ensuring the freedom degree of design of an attachment part, manufacturing workability | operativity can be improved.

  A cam member having an operation portion that engages with the operation receiving portion as a third latch opening operation portion for releasing the lock of the striker by the latch mechanism; and a motor for operating the cam member. The retractable motor case is provided with a shaft portion that can support the cam member and the open lever on the same axis, and the open lever is provided with a shaft hole that is supported by the shaft portion. It is preferable that a spacer portion extending in the axial direction around the hole is provided integrally with the attachment portion. As described above, since the shaft portion that pivotally supports the open lever is provided in the cam member and the motor case that can store the motor, it is not necessary to newly set the shaft portion that pivotally supports the open lever. Further, even in a product variation that does not require an electrical opening mechanism such as a cam member and a motor, an increase in the number of parts required due to the product variation can be suppressed by using the motor case as it is. Further, by providing a spacer portion integrally with the open lever attachment portion, even if the motor case is used as it is in a product variation that does not require the electrical release mechanism, the gap that eliminates the cam member is used as the spacer portion. Therefore, it is possible to suppress rattling of the open lever and easy assembly.

  Further, a shaft portion that pivotally supports the open lever is provided, and the open lever is provided with a shaft hole that is pivotally supported by the shaft portion, and a spacer portion that extends in the axial direction around the shaft hole is provided on the open lever. It is preferable to provide the attachment portion integrally. In this way, even if the number of members pivotally supported by the shaft portion is reduced, the spacer portion that fills the gap of the reduced member is integrally provided in the attachment portion, without increasing the number of parts. The looseness of the open lever can be suppressed, and assembly is easy. "

  In the latch device of the present invention, since the attachment portion having the second connecting portion is integrally provided with a different material with respect to the open lever main body, the design freedom of the second connecting portion can be improved. Further, since the spacer portion when no cam member is disposed can be formed, an increase in the number of parts can be prevented. Moreover, even if there are a plurality of product variations, the same open lever main body is used, so that the open lever having the second connecting portion can be manufactured at low cost.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show a latch device according to an embodiment of the present invention. The latch device is attached to one of the opening / closing body and the vehicle body such as a trunk door and a hatch back door, and a striker (not shown) disposed on the other is releasably locked to keep the door closed. To maintain.

  The latch device includes a casing including a base 10, a housing 19, and a motor case 25. The first latch device shown in FIGS. 1 (A), 1 (B) and 2 enables the door to be opened by opening the operation handle 71, the key cylinder, and the switch. A fork 33, a claw 39, an open lever 46A, a cam member 61, and a motor 69 are provided. Further, the second latch device shown in FIGS. 7A, 7B, and 8 enables the door to be opened by opening the operation handle 71 and the key cylinder. A claw 39 and an open lever 46B are provided. Further, the third latch device shown in FIGS. 9A, 9B and 10 enables the door to be opened by opening the operation handle 71 and the switch. A claw 39, an open lever 46C, a cam member 61, and a motor 69 are provided. That is, in this embodiment, all the parts other than the open levers 46A, 46B, and 46C can be shared. Further, the cam member 61 and the motor 69 are arranged as necessary depending on product variations.

  The base 10 is made of metal and has a substantially triangular shape that is gradually tapered toward the tip located on the lower side in the drawing. The base 10 is provided with reinforcing ribs 11 on both side edges by bending. Further, an insertion groove 12 through which the striker is detachably inserted is provided at the tip of the base 10. A first mounting hole 13 for rotatably mounting the fork 33 is provided on one side of the insertion groove 12. A second mounting hole 14 for rotatably mounting the claw 39 is provided on the other side of the insertion groove 12. Furthermore, a third attachment hole 15 for rotatably attaching the open levers 46 </ b> A to 46 </ b> C is provided in a substantially central portion of the base 10. The base 10 is provided with a motor holding portion 16 for holding the motor 69 on one end portion located on the opposite side to the insertion groove 12. An insertion hole 17 for projecting the second coupling portion 56 of the open levers 46 </ b> A to 46 </ b> C to the outside is provided on the side of the motor holding portion 16. Reference numeral 18 in the figure denotes a support rib for reducing the rotational resistance of the fork 33 and the claw 39.

  The housing 19 is made of resin and has a reverse concave shape in cross section covering a region where the fork 33 and the claw 39 are disposed at the tip of the base 10. The housing 19 is provided with an insertion groove portion 20 corresponding to the insertion groove 12 in an assembled state with the base 10. A first through hole 21 corresponding to the first mounting hole 13 is provided, and a second through hole 22 corresponding to the second mounting hole 14 is provided. Further, an arcuate cutout portion 23 is provided that is located on the same axis with respect to the third mounting hole 15 and corresponds to the outer peripheral portion of the cam member disposition portion 27 of the motor case 25. The housing 19 is provided with a spring mounting portion 24 for mounting a second spring 50 for biasing the open levers 46A to 46C to the non-open operation position.

  The motor case 25 is made of resin, and is disposed in the upper region of the base 10 with the motor 69 mounted. As shown in FIGS. 2 and 3, the motor case 25 includes a motor arrangement portion 26 that corresponds to the motor holding portion 16 of the base 10 and bulges away from the base 10. A cam member disposing portion 27 for disposing the worm 70 and the cam member 61 is provided beside the motor disposing portion 26. The cam member disposing portion 27 corresponds to the third mounting hole 15 in the assembled state to the base 10, and protrudes so as to be located on the same axis with respect to the third mounting hole 15, and the tip thereof is A shaft portion 28 that is fitted into the third mounting hole 15 is projected. Further, the motor case 25 is provided with a connector portion 29 so as to be positioned on a side portion of the motor arrangement portion 26. In the connector portion 29, as shown in FIG. 1A, a pair of motor connection terminals 30A and 30B for supplying driving power to the motor 69 and a latched state and an unlatched state of the fork 33 are detected. A positive-side switch terminal 31 is provided. The motor connection terminals 30A, 30B and the positive electrode side switch terminal 31 are integrally formed by insert molding when the motor case 25 is manufactured by injection molding. The negative electrode side switch terminal 32 which is the ground side of the positive electrode side switch terminal 31 is formed separately from the motor case 25, and is disposed together when the motor case 25 is fixed to the base 10 by screwing, It is connected to the ground side motor connection terminal 30B.

  The fork 33 is made of metal and includes a first shaft hole 34 corresponding to the first mounting hole 13 of the base 10 as shown in FIGS. Then, the first mounting pin 35 passes through the first through hole 21 of the housing 19, and the first mounting pin 35 is crimped and crimped on the outer surface of the first mounting hole 13, so that the first mounting pin 35 is rotatably mounted. Is. The fork 33 is provided with a U-shaped locking groove 36 through which a striker can be inserted. As shown in the figure, the latching groove 36 is in a latched position where the striker is latched when rotated so as to extend in a direction substantially orthogonal to the insertion groove 12. In this state, the state in which the fork 33 rotates clockwise and the tip opening of the locking groove 36 coincides with the insertion groove 12 is the unlatched position where the locking of the striker is released. The first spring 45 is attached to the fork 33 so as to be positioned on the side where the open levers 46 </ b> A to 46 </ b> C are disposed, that is, on the opposite side of the locking groove 36 with respect to the first shaft hole 34. A spring mounting portion 37 is provided. On the side where the open levers 46 </ b> A to 46 </ b> C are disposed, a locking step portion 38 that protrudes in a step shape is provided at the edge facing the adjacent claw 39.

  The claw 39 is made of metal and includes a second shaft hole 40 corresponding to the second mounting hole 14 of the base 10 at one end. The second mounting pin 41 is penetrated from the second through hole 22 of the housing 19, and the second mounting pin 41 is crimped and crimped on the outer surface of the second mounting hole 14, so that the second mounting pin 41 is rotatably mounted. Is. The claw 39 extends from the second shaft hole 40 to the side where the open levers 46A to 46C are disposed, and is positioned at a position corresponding to the locking step portion 38 of the fork 33 when rotated counterclockwise. A claw-shaped locking part 42 that locks to the part 38 is provided in a protruding manner. Further, at the tip of the claw 39, there is provided an operation receiving portion 43 with which the open levers 46A to 46C and the operation portions 49 and 65 of the cam member 61 are engaged (contacted). The operation receiving portion 43 is configured to bend toward the fork 33 so as to form a substantially L shape from the tip of the claw 39 and to extend in a planar shape along the rotation axis direction. Further, the claw 39 is provided with a second spring mounting portion 44 for mounting a first spring 45 similar to the fork 33.

  Between the first spring mounting portion 37 of the fork 33 and the second spring mounting portion 44 of the claw 39, a first spring 45 that links and links the fork 33 and the claw 39 is disposed. Specifically, in the state shown in FIG. 1A, when the claw 39 is rotated clockwise by the open levers 46A to 46C or the cam member 61, the first spring 45 is extended rightward in the drawing. When the locking of the locking step portion 38 and the locking portion 42 is released, the first spring 45 is elastically contracted, so that the fork 33 is rotated clockwise and the striker 36 is moved from the locking groove 36. Can be released. In this unlatched state, the latching step portion 38 of the fork 33 abuts against the side surface of the latching portion 42 of the claw 39 by the biasing force of the first spring 45, thereby maintaining the unlatched state. On the other hand, when the striker enters the locking groove 36 of the fork 33 by closing the door, the fork 33 rotates counterclockwise by the striker pressing by the door closing operation force. At this time, the locking step portion 38 of the fork 33 slidably contacts the side surface of the locking portion 42 of the claw 39, so that the claw 39 is temporarily rotated clockwise while the first spring 45 is extended. Then, when the locking step portion 38 exceeds the upper end of the locking portion 42, and the fork 33 rotates to a position where the locking groove 36 extends in a direction substantially orthogonal to the insertion groove 12 as shown in the figure, the first spring 45. The claw 39 rotates counterclockwise by elastically contracting. As a result, when the locking portion 42 of the claw 39 is locked to the locking step portion 38 of the fork 33, the locked state of the striker by the fork 33 is maintained.

  The open levers 46A, 46B, and 46C are engaged with the operation receiving portion 43 of the claw 39 to release the striker from being locked by the fork 33. Among them, as shown in FIGS. 4A and 4B, the open levers 46A and 46B are made of a metal open lever main body 47 and a resin-made attachment portion provided integrally with the open lever main body 47 by insert molding. 54A and 54B. Further, as shown in FIG. 4C, the open lever 46 </ b> C is configured by a single open lever main body 47 without providing an additional portion. And in this embodiment, the open lever main body 47 of each open lever 46A, 46B, 46C is comprised by the same common component. Further, the attachment portions 54A and 54B of the open levers 46A and 46B are configured so that only a part of the shapes are different.

  The open lever main body 47 is clear with reference to FIG. As shown in this figure, the open lever main body 47 includes a third shaft hole 48 corresponding to the third mounting hole 15 of the base 10. And when the shaft part 28 is penetrated by the assembly | attachment of the motor case 25, it is axially attached rotatably. The open lever body 47 is positioned on the left side of the operation receiving portion 43 of the claw 39 in the assembled state, and engages (contacts) with the operation receiving portion 43 when the open levers 46A to 46C are latched counterclockwise. An operation unit 49 is provided. The open lever main body 47 is provided with a second spring 50 for biasing the open levers 46A to 46C to the non-open operation position so as to be positioned on the opposite side of the operation portion 49 with respect to the third shaft hole 48. A spring mounting hole (spring mounting portion) 51 for insertion is provided. Further, a bent portion 52 is provided on the side edge located in the lateral direction of the spring mounting hole 51 to improve the fixing property of the attachment portions 54A and 54B. And the 1st connection part 53 for connecting with the operation handle 71 is provided so that it may protrude from the bending part 52 to the exterior of a casing. The first connecting portion 53 has a circular hole and a square hole.

  As shown in FIGS. 4 (A), (B), FIGS. 5 (A), (B), and FIGS. It is provided from between the shaft hole 48 and the operation portion 49 to the region between the spring mounting hole 51 and the first connecting portion 53. As shown in FIG. 1 (B), the attachment portions 54A and 54B are provided with a cam member 61 between the motor case 25 in an assembled state so that the attachment portions 54A and 54B rotate between the components. Only a clearance of a thickness is formed. The attachment portions 54A and 54B are provided with an exposed portion 55 cut into a V shape from the side in order to expose the spring mounting hole 51 to the outside at a position corresponding to the spring mounting hole 51 of the open lever main body 47. It has been. Further, a second connecting portion 56 for connecting a key rod 73 connected to the key cylinder is provided on a side surface in the latch opening direction by the open levers 46A and 46B. The second connecting portion 56 is provided with an arm portion 57 extending so as to protrude from the insertion hole 17 of the base 10 and has a substantially cylindrical shape formed at the tip thereof.

  The attachment portions 54A and 54B are provided with shaft hole portions 58 corresponding to the third shaft holes 48. As shown in FIGS. 4A, 5A, and 5B, the attachment portion 54A of the open lever 46A has a shaft hole portion 58 on the side where the cam member 61 is disposed in the shaft hole portion 58. And a large-diameter cam receiving portion 59 that rotatably supports the cam member 61 is recessed. Further, as shown in FIG. 4B and FIGS. 6A and 6B, the attachment portion 54 </ b> B of the open lever 46 </ b> B has a cam member disposition portion 27 in the motor case 25 from the outer peripheral portion of the shaft hole portion 58. A cylindrical spacer 60 extending to the vicinity of the inner surface is provided. That is, the attachment portions 54A and 54B of the open levers 46A and 46B differ only in which of the cam receiving portion 59 and the spacer portion 60 is provided.

  The cam member 61 constitutes a third latch opening operation member that releases the striker by the latch mechanism. As shown in FIGS. 1A and 1B and FIG. 2, the cam member 61 includes a worm gear 62 on the back surface side that is located on the cam member disposition portion 27 side. Further, a protruding portion 63 having a smaller diameter than the worm gear 62 is provided so as to protrude from the worm gear 62 in the same axial direction. The shaft core of the cam member 61 is provided with a shaft through hole 64 that penetrates the shaft portion 28 of the motor cover, and is rotatably disposed in the cam member disposing portion 27. The projecting portion 63 is provided with an operation portion 65 that projects radially outward and engages with the operation receiving portion 43 of the claw 39. The operation portion 65 can be engaged with the operation receiving portion 43 of the claw 39 in the latched state, and the locking step portion 38 of the fork 33 and the locking portion 42 of the claw 39 are rotated by the rotation of the cam member 61. The claw 39 is formed with a protruding amount that can be operated up to a position where the engagement is released. Further, the protruding portion 63 is provided with a cylindrical cam shaft portion 66 that protrudes in the same axial direction and is fitted into the cam receiving portion 59 of the attachment portion 54A. Further, on the back surface of the cam member 61, a return spring disposing portion 68 for disposing a return spring 67 for returning the operating portion 65 to a non-opening operation position where the operating portion 65 is not in contact with the operation receiving portion 43 is provided.

  As shown in FIG. 3, the motor 69 is arranged in the motor arrangement part 26 of the motor cover. The motor 69 has a worm 70 disposed on its output shaft, and the worm 70 is disposed in the cam member disposition portion 27. The cam member 61 is rotationally driven in the opening operation direction by the meshing of the worm 70 and the worm gear 62.

  The operation handle 71 is disposed so that a person confined in the trunk can be positioned in the trunk so that the trunk door can be opened, and by rotating the open levers 46A to 46C, the striker is locked by the latch mechanism. A first latch opening operation member for releasing the. The operation handle 71 is provided with a connecting portion 72 connected to the first connecting portion 53 of the open levers 46A to 46C.

  The key cylinder (not shown) constitutes a second latch opening operation member for releasing the lock of the striker by the latch mechanism. The key cylinder is disposed so as to be located outside the vehicle. By inserting a physical mechanical key, the rotational operation force is transmitted to the open levers 46A and 46B via the key rod 73. The key rod 73 is provided with a connecting member 74 at the tip, and is connected to the second connecting portion 56 of the open levers 46A and 46B via the connecting member 74. The connecting member 74 includes a key lot mounting portion 75 for mounting an end portion of the key rod 73. A connecting portion 76 having a substantially conical cylindrical shape is provided at the tip of the key rod mounting portion.

  The switch (not shown) is an execution switch that is disposed in the vehicle and drives the motor 69 to rotationally drive the cam member 61 in the opening operation direction. This switch is connected to the motor connection terminals 30A and 30B in the connector portion 29 by an in-vehicle control area network (CAN) or a lead wire.

  Next, the operation of the latch device of this embodiment will be described.

  First, the first latch device assembled with the open lever 46A is shown in FIGS. 1 (A), 1 (B) and FIG. In the first latch device, when the door is closed, the striker enters the locking groove 36 of the fork 33, and the fork 33 rotates counterclockwise. As shown in the figure, when the locking groove 36 of the fork 33 is positioned in a direction substantially orthogonal to the insertion groove 12 of the base 10, the locking portion 42 of the claw 39 engages with the locking step portion 38 of the fork 33. . Thereby, the fork 33 is maintained in the latch position.

  In this latched state, when the operation handle 71 as the first latch opening operation member is opened, the open lever 46A is rotated counterclockwise. Thereby, the operation part 49 of the open lever 46 presses the operation receiving part 43 of the claw 39, and the claw 39 rotates clockwise. Then, the claw 39 rotates clockwise, so that the locking between the locking step portion 38 of the fork 33 and the locking portion 42 of the claw 39 is released. Then, when the fork 33 is rotated clockwise by the urging force of the first spring 45, the striker can be unlatched.

  Further, when the mechanical key is inserted into the key cylinder which is the second latch releasing operation member in the latched state and the opening operation is performed, the open lever 46 </ b> A rotates counterclockwise via the key rod 73. Thereby, the operation part 49 of the open lever 46 presses the operation receiving part 43 of the claw 39 to rotate the claw 39 and rotates the fork 33 in conjunction with the first spring 45 in the same manner as described above. As a result, the striker can be released into an unlatched state.

  Further, in the latched state, when the opening operation is performed by the in-vehicle switch as the third latch opening operation member, the controller detects the switch operation, and the controller energizes the motor 69 to rotate it. Then, the cam member 61 rotates counterclockwise, and the operation portion 65 presses the operation receiving portion 43 of the claw 39. As a result, as described above, the claw 39 is rotated, and the fork 33 is rotated in conjunction with the first spring 45, whereby the striker can be opened. The controller cancels the energization of the motor 69 when a predetermined time elapses. Then, the cam member 61 rotates clockwise by the urging force of the return spring 67 and returns to the initial position before the rotation.

  In the latch state shown in FIG. 1A, the negative electrode side switch terminal 32 is separated from the positive electrode side switch terminal 31 by being pressed by the first spring mounting portion 37. As a result, the controller detects the insulation state between the negative electrode side switch terminal 32 and the positive electrode side switch terminal 31 with an electric signal, thereby determining that it is in the latch state, and notifies the driver by displaying a lamp. . On the other hand, in the unlatched state, the negative switch terminal 32 is pressed by the first spring mounting portion 37 by the clockwise rotation of the fork 33, and the negative switch terminal 32 contacts the positive switch terminal 31. As a result, the controller detects the short-circuit state between the negative electrode side switch terminal 32 and the positive electrode side switch terminal 31 with an electric signal, thereby determining that it is in an unlatched state, and notifies the driver by turning off the lamp. .

  Moreover, the 2nd latch apparatus which assembled | attached the open lever 46B is shown to FIG. 7 (A), (B) and FIG. When the door is closed in an unlatched state, the second latch device is in a latched state in the same manner as the first latch device.

  When the operation handle 71 as the first latch opening operation member is operated and when the key cylinder as the second latch opening operation member is operated, the unlatch is performed similarly to the first latch device. State.

  In the second latch device, the third latch opening operation member by the motor 69 and the cam member 61 is not provided. For this reason, an unlatch operation by a switch cannot be performed. However, the motor cover is disposed as a common component in all the latch devices. Therefore, the motor connection terminals 30A and 30B are not connected to the controller, but the positive electrode side switch terminal 31 and the negative electrode side switch terminal 32 are disposed, and these are connected to the controller. Therefore, the latch state and unlatch state of the second latch device can be detected in the same manner as described above.

  Furthermore, the third latch device assembled with the open lever 46C is shown in FIGS. 9 (A), (B) and FIG. When the third latch device closes the door in the unlatched state, the third latch device enters the latched state in the same manner as the first latch device. Since the third latch device has a configuration in which the attachment portions 54A and 54B are not provided on the open lever 46C, the washer 77 is disposed in the gap corresponding to the thickness of the shaft hole portion 58.

  When the operation handle 71 as the first latch opening operation member is operated, and when the in-vehicle switch as the third latch opening operation member is operated, the unlatch is performed similarly to the first latch device. State.

  Further, the controller can detect the latched state and the unlatched state of the third latch device in the same manner as described above based on the ON / OFF state of the positive electrode side switch terminal 31 and the negative electrode side switch terminal 32.

  As described above, in the latch device of the present invention, the open levers 46A and 46B are configured by integrally providing the attachment portions 54A and 54B having the second connection portion 56 with the open lever main body 47 using different materials. Therefore, the shape of the second connecting portion 56 can be configured relatively freely. As a result, the layout of parts can be improved.

  Moreover, even if there are a plurality of product variations, the open levers 46A to 46C are manufactured by using the same open lever main body 47 only by changing the configuration of the attached portions 54A and 54B, including the configuration in which the attached portion is not provided. can do. Therefore, it is possible to manufacture the open levers 46A and 46B having the second connecting portion 56 according to the product variation, or to manufacture the open lever 46C without the second connecting portion 56 at low cost.

  The operation portion 49 that engages with the operation receiving portion 43 of the latch mechanism and the spring mounting hole 51 in which the second spring 50 is temporarily mounted are provided in the metal open lever main body 47, and thus wear due to use. And can prevent damage. Further, since the attachment portions 54A and 54B are integrally formed by insert molding with respect to the open lever main body 47, installation work to the open lever main body 47 is not required after ensuring the degree of freedom of design. Workability can be improved.

  Further, since the motor case 25 in which the motor 69 constituting the third latch opening operation member is disposed is provided with the shaft portion 28 that pivotally supports the cam member 61 and the open levers 46A to 46C, an electric opening mechanism using them. Even if the product variation (second latch device) is not required, the shaft portion 28 that pivotally supports the open lever 46 does not need to be newly set by using the motor case 25 as it is. Therefore, an increase in the number of parts required due to variations can be suppressed. In addition, in this case, since the spacer portion 60 extending into the cam member disposing portion 27 is provided in the attachment portion 54B, it is possible to suppress rattling of the open lever 46B without increasing the number of parts.

  The latch device of the present invention is not limited to the configuration of the above embodiment, and various modifications can be made.

  For example, in the above-described embodiment, the attachment portions 54A and 54B formed on the first and second open levers 46A and 46B are integrally provided on the open lever main body 47 by insert molding, but separate members separated by injection molding. And may be provided integrally with the open lever main body 47 by assembling.

  Moreover, in the said embodiment, although the open levers 46A-46C were comprised so that the same open lever main body 47 might be utilized, you may comprise so that a shape may differ for every open lever 46A-46C. In this case, it is preferable that the basic shape is the same, and in the process of manufacturing the open lever main body 47, the manufacturing process is partially made the same to reduce the cost.

  Further, in the above-described embodiment, the open levers 46A to 46C are configured to be directly engaged with or connected to the claw 39, the operation handle 71, and the key rod 73. It is good also as a structure to connect.

BRIEF DESCRIPTION OF THE DRAWINGS The 1st latch apparatus which concerns on embodiment of this invention is shown, (A) is a front view which shows the state which removed the cover components, (B) is principal part sectional drawing of (A). It is a disassembled perspective view of a 1st latch apparatus. It is a disassembled perspective view which shows the inner surface side of a motor cover. (A) is a perspective view showing a first open lever, (B) is a perspective view showing a second open lever, and (C) is a perspective view showing a third open lever. A 1st open lever is shown, (A) is a front view, (B) is a side view. The 2nd open lever is shown, (A) is a front view and (B) is a side view. The 2nd latch apparatus is shown, (A) is a front view which shows the state which removed the cover components, (B) is principal part sectional drawing of (A). It is a disassembled perspective view of a 2nd latch apparatus. The 3rd latch apparatus is shown, (A) is a front view which shows the state which removed the cover components, (B) is principal part sectional drawing of (A). It is a disassembled perspective view of a 3rd latch apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Base 19 ... Housing 25 ... Motor case 26 ... Motor installation part 27 ... Cam member installation part 28 ... Shaft part 29 ... Connector part 30A, 30B ... Motor connection terminal 31 ... Positive electrode side switch terminal 32 ... Negative electrode side switch terminal 33 ... Fork (latch mechanism)
36 ... striker locking groove 39 ... claw (latch mechanism)
43 ... Operation receiving part 46A-46C ... Open lever 47 ... Open lever main body 49 ... Operation part 53 ... 1st connection part 54A, 54B ... Attached part 56 ... 2nd connection part 60 ... Spacer part 61 ... Cam member (3rd latch) Opening operation member)
65 ... operation section 69 ... motor 71 ... operation handle (first latch opening operation member)
73 ... Key rod (second latch opening operation member)

Claims (4)

A latch mechanism having an operation receiving portion for locking and releasing the locked state of the striker provided on the vehicle body or the door, and engaging the operation receiving portion by rotation to release the striker from being locked. A latch device comprising: an open lever for rotating the open lever by first and second latch opening operation members to engage with an operation receiving portion of a latch mechanism;
The open lever is
An open lever body having an operation portion that engages with the operation receiving portion of the latch mechanism, and a first connection portion that connects the first latch opening operation member;
An attachment portion integrally provided with a different material with respect to the open lever body, and having a second connecting portion for connecting the second latch opening member;
A latch device comprising: The open lever body is made of metal, and the open lever body includes a spring mounting portion that mounts one end of a spring that biases the open lever body toward the initial position before operation.
The said attachment part is a product made from resin, and is integrally formed in the said open lever main body by insert molding so that the said operation part and the said spring mounting part may be exposed outside. Latch device.   A cam member having an operation portion that engages with the operation receiving portion as a third latch opening operation portion for releasing the striker lock by the latch mechanism, and a motor for operating the cam member can be stored. The motor case is provided with a shaft portion on which the cam member and the open lever can be coaxially supported, and the open lever is provided with a shaft hole that is supported by the shaft portion. The latch device according to claim 1 or 2, wherein a spacer portion extending in the axial direction around is integrally provided in the attachment portion.   A shaft portion that pivotally supports the open lever is provided, and a shaft hole that is pivotally supported by the shaft portion is provided in the open lever, and a spacer portion that extends in the axial direction around the shaft hole is provided in the attachment portion. The latch device according to claim 1, wherein the latch device is provided integrally with the latch device.

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