CN109236071B - Latch device for vehicle - Google Patents
Latch device for vehicle Download PDFInfo
- Publication number
- CN109236071B CN109236071B CN201810618565.4A CN201810618565A CN109236071B CN 109236071 B CN109236071 B CN 109236071B CN 201810618565 A CN201810618565 A CN 201810618565A CN 109236071 B CN109236071 B CN 109236071B
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- CN
- China
- Prior art keywords
- latch
- pawl
- restriction
- vehicle
- striker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/36—Locks for passenger or like doors
- E05B83/40—Locks for passenger or like doors for sliding doors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/14—Specially controlled locking actions in case of open doors or in case of doors moved from an open to a closed position, e.g. lock-out prevention or self-cancelling
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/04—Strikers
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/20—Bolts or detents
- E05B85/24—Bolts rotating about an axis
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The present invention provides a latch device for a vehicle, which can restrain a sliding door and keep the sliding door in a state of closing a door opening part by preventing disengagement after one-time engagement when a load from an inner side to an outer side of the vehicle is applied to the sliding door, the latch device comprising: a latch member supported to be rotatable between a restraint position restraining a restrained portion of the striker and a release position at which the restrained portion is released; and a pawl member supported so as to be movable between a restriction position for restricting movement of the latch member to the release position and a restriction release position separated from a movement locus of the latch member, wherein the latch member has an engagement recess formed with a tooth surface intersecting a tangential direction of the outer peripheral portion, the pawl member includes an engagement arm portion having an engagement claw and a movement restriction portion located on the other side of the pawl axis with respect to the engagement arm portion, and the engagement arm portion is set to have a weight distribution larger than a weight of the movement restriction portion.
Description
Technical Field
The present invention relates to a vehicle latch device for locking and unlocking a sliding door that slides to open and close a door opening.
Background
Conventionally, movement of the slide door is restricted so as not to open the slide door carelessly when a load is applied to the slide door from the vehicle interior side to the vehicle exterior side.
For example, japanese patent application laid-open No. 2008-101336 proposes a latch device including a latch which is brought into an engaged state with a striker arranged in a vehicle body at the time of impact input, and a pawl which is engaged with the latch.
The vehicle sliding door is configured to slide outside the vehicle body and to enter obliquely with respect to the door opening when the door opening is closed. Therefore, in the structure of japanese patent application laid-open No. 2008-101336, depending on the direction of the load applied to the vehicle sliding door, the vehicle sliding door may be moved obliquely without moving in the vehicle width direction, and the latch and the pawl may be disengaged from each other, and the sliding door may be opened.
Disclosure of Invention
An aspect of the present invention provides a latch device for a vehicle, which can restrain a sliding door and hold the sliding door in a state of closing a door opening by preventing disengagement after one-time engagement when a load from an inside of the vehicle to an outside of the vehicle is applied to the sliding door.
(1) A latch device for a vehicle according to an aspect of the present invention is a latch device for a vehicle in which a slide door is openably and closably attached to a door opening portion of a vehicle body, the latch device including: a striker disposed at a door opening of the vehicle body; a latch member that is disposed in the slide door and that is supported so as to be rotatable between a restraint position that restrains the striker and a release position that releases the striker; and a pawl member supported to be movable between a restriction position and a restriction release position, the restriction position restricting movement of the latch member located at the restriction position to a release position, the restriction release position being a position separated from a movement locus of the latch member, the latch member having a latch engagement portion formed with a tooth surface intersecting a tangential direction of an outer peripheral portion, the pawl member including: a first arm portion that is positioned on one side of a pawl axis and has a pawl engagement portion that engages with the latch engagement portion at the restriction position; and a second arm portion that is positioned on the other side of the pawl shaft with respect to the first arm portion, wherein the first arm portion is set to have a weight distribution in which the weight is greater than the weight of the second arm portion, and wherein when the slide door is displaced from the vehicle interior side to the vehicle exterior side and the striker abuts against the second arm portion of the pawl member in a state in which the latch member is positioned at the restraint position and the striker is restrained, the pawl member is displaced from the restraint release position to the restraint position, and the pawl engagement portion of the first arm portion engages with the latch engagement portion of the latch member that is to be moved from the restraint position to the release position in which the striker is released, thereby holding the latch member at the restraint position.
(2) In the aspect (1), the latch engaging portion may be formed with an engaging recess formed at an acute angle with respect to a tangential direction of an imaginary circle centered on the latch shaft, the pawl engaging portion may be formed with an acute-angled locking claw corresponding to the engaging recess, and the locking claw may have a pressing surface that presses the engaging recess in a state of being engaged with the engaging recess.
(3) In addition to the aspect (1) or (2), a guide portion against which the striker to be moved from the restraining position to the release position abuts may be formed in the second arm portion of the pawl member, and the pawl member may be moved from the restriction release position to the restriction position by pressing the guide portion with the striker.
(4) In addition to the aspect (1) to (3), the latch member may be biased in a direction moving from the restraint position to the release position, and the pawl member may be biased and held so as to move from the restraint position to the restraint release position in a state where the latch engaging portion is engaged with the pawl engaging portion.
According to the aspect (1), when the slide door is displaced from the vehicle interior side to the vehicle exterior side and the striker abuts against the second arm portion of the pawl member in the state where the latch member is located at the restraining position and the striker is restrained, the pawl member is displaced from the restraint release position to the restraining position, and the pawl engagement portion is engaged with the latch engagement portion of the latch member. At this time, since the engaged pawl member is set so that the first arm portion is heavier than the second arm portion, a force in a direction in which the pawl member is displaced from the regulation position to the regulation release position due to an inertia moment caused by the weight acts on the pawl member, and therefore, the tooth surface of the latch engaging portion is pressed by the pawl engaging portion, so that the engaged state becomes firm, and the latch member can be reliably held at the restraint position.
Thus, when a load from the vehicle interior side to the vehicle exterior side is applied to the slide door, the latch engaging portion and the pawl engaging portion after the first engagement are prevented from disengaging from each other, and the slide door can be restrained and held in a state where the door opening portion is closed. That is, the striker can be prevented from passing through and disengaging between the latch member and the pawl member, and the sliding door can be prevented from being opened carelessly. Therefore, the sliding door is stably held in the closed state, and the sliding door can be restrained from moving and deforming to the vehicle outside.
According to the aspect (2), since the engagement recess of the latch member formed at an acute angle and the locking claw of the pawl member are engaged with each other, the latch member is not easily disengaged once engaged, and the sliding door can be restrained and held in a state where the door opening is closed.
According to the aspect (3) described above, when the guide portion is pressed by the striker, the entire pawl member rotates about the pawl shaft, and therefore the pawl member can be reliably moved from the restriction release position to the restriction position.
According to the aspect of (4) above, when the slide door is displaced from the vehicle interior side to the vehicle exterior side in the state where the striker is restrained and the striker abuts against the second arm portion of the pawl member, the pawl member is displaced from the restraint release position to the restraint position, and the latch member is biased by the biasing mechanism in the direction of moving from the restraint position to the release position, so that the latch engaging portion moves toward the pawl engaging portion side. Therefore, the amount of displacement of the pawl member from the restriction release position to the restriction position can be reduced, and the latch engaging portion and the pawl engaging portion can be engaged at an earlier timing, so that it is possible to more reliably prevent the sliding door from being opened carelessly by the striker passing through and disengaging between the latch member and the pawl member.
Drawings
Fig. 1 is a plan view showing a state in which a vehicle latch device according to an embodiment of the present invention is installed in a vehicle.
Fig. 2 is a cross-sectional view taken along line a-a of fig. 5 showing a state where a door of the vehicle latch device is opened.
Fig. 3 is a cross-sectional view taken along line a-a of fig. 5 showing a state in the middle of closing the door of the vehicle latch device.
Fig. 4 is a cross-sectional view taken along line a-a of fig. 5 showing a state where the vehicle door of the vehicle latch device is closed.
Fig. 5 is a front view showing a state in which a door of the vehicle latch device is closed.
Fig. 6 is a perspective view showing a state in which a door of the latch device for a vehicle is closed.
Fig. 7 is a cross-sectional view taken along line a-a of fig. 5 showing a state in which a load is applied to a closed door from the vehicle interior side to the vehicle exterior side of the vehicle latch device, and is a view of a state before the pawl member is engaged with the latch member.
Fig. 8 is a cross-sectional view taken along line a-a of fig. 5 showing a state in which a load is applied to a closed door from the vehicle interior side to the vehicle exterior side of the vehicle latch device, and is a view of a state after the pawl member is engaged with the latch member.
Detailed Description
An embodiment of the present invention is described in detail with reference to the accompanying drawings as appropriate. The same components are denoted by the same reference numerals, and redundant description thereof is omitted.
As shown in fig. 1, a door opening S1 is opened in a side surface of a vehicle body S in which the vehicle latch device 1 of the present embodiment is installed, and a slide door S2 opens and closes the door opening S1.
The slide door S2 slides back and forth along the outer side surface on the outer side surface of the vehicle body S, and is fitted into the door opening portion S1 located at the front end of the sliding range to close the door opening portion S1. Therefore, the slide door S2 is provided so as to be inclined inward from the vehicle outer side to the vehicle inner side when fitted to the door opening portion S1.
The vehicle latch device 1 according to the present embodiment includes the striker 10 provided to the pillar S3 of the vehicle body S and the latch main body 20 provided to the slide door S2, and holds the closed state of the slide door S2 by restraining the striker 10 with the latch main body 20.
As shown in fig. 2 to 8, the striker 10 includes the restrained portion 12 and the base portion 13, and is provided in the door opening portion S1.
The restrained portion 12 is made of a round bar-shaped steel material bent into a U-shape.
The base portion 13 is formed of a plate-shaped member, and the restrained portion 12 is provided upright with both end portions of the restrained portion 12 penetrating through the plate surface. The base portion 13 is screwed to the vehicle body S by screws 14.
The striker 10 is disposed in a U-shaped door opening S1 facing the pillar S3 forming the door opening S1 in a vehicle body side view.
The latch main body 20 includes a latch member 30 and a pawl member 40, and is unitized by the housing 22. The latch main body 20 is housed in a unitized state in a portion of the front end surface S2a of the slide door S2 facing the striker 10.
As shown in fig. 6, the housing 22 includes a pair of brackets 24(24A, 24B) and is disposed so that the plate surfaces thereof face each other.
The bracket 24 has a rectangular frame shape in which a rectangular through hole penetrating the plate surface is opened at the center of the plate-like member, and is bent at a substantially right angle at the middle of the opposing frame sides. That is, each bracket 24 has a shape in which two members having a bent shape are connected to each other. One of the two bent shapes is a fixing portion 24a, and the other is a substrate 24 b. The pair of brackets 24 are disposed so that the plate surfaces of the pair of substrates 24b face each other and the plate surfaces of the pair of fixing portions 24a are located on the same plane.
The fixing portion 24a is screwed to the front end surface S2a of the slide door S2 by screws (not shown) at a portion for fixing the latch body 20 to the slide door S2. The fixing portion 24a is arranged in a direction of being bent in the opposite direction with respect to the opposing bracket 24. That is, the fixing portion 24a is configured such that the pair of concave portions having a bent shape face each other. The bent recess is defined as an entry portion 24c, and the entry portion 24c serves as an entry for inserting the striker 10 into the latch main body 20 when the slide door S2 is closed.
The substrate 24b is provided with a restriction window 24d forming a concave portion of the bent shape, a connection portion 25 bending a predetermined portion, and a release contact portion 26.
The restraint window 24d is configured to be capable of inserting and detaching the restrained portion 12 of the striker 10 with respect to the opening and closing direction of the slide door S2, and to be capable of engaging with the slide door S2 by moving in the vehicle interior and exterior direction (vehicle width direction, left and right direction).
The coupling portion 25 is a portion for coupling the brackets 24, and is formed by overlapping and welding portions formed by bending one edge portions of the substrates 24b toward each other.
The inner surface of the coupling portion 25 is set as a release contact portion 25 a.
The release contact portion 25a defines a release position that is one end (unlocking side) of the rotation range of the latch member 30 when the latch member 30 abuts against the release contact portion 25a via a stopper (not shown).
The release contact portion 26 is formed by bending a protruding piece protruding from an edge portion of one bracket 24A (upper bracket in fig. 6) along the plate surface toward the opposite other bracket 24B (lower bracket in fig. 6). The release contact portion 26 defines a restriction release position that is one end (a lock release side) of a rotation range of the click member 40 when the click member 40 abuts against the release contact portion 26.
That is, the release contact portion 25a and the release contact portion 26 are integrally supported by the housing 22.
In the case 22 of the present embodiment, the upper and lower brackets 24A and 24B are coupled by the coupling portion 25 to form one bracket 24, but the upper and lower brackets 24A and 24B may not be coupled and may be configured to be separated while holding separate members. In the case of such a configuration, the assembly work of the latch member 30, the click member 40, and other members, and the replacement work at the time of maintenance are facilitated, and the workability can be improved.
As another embodiment of the housing 22, the following configuration may be adopted: the pair of substrates 24b and the release contact portion 25a are formed as one member by bending one plate material without vertically dividing the bracket. In the case of such a configuration, the welding step of the coupling portion 25 in the present embodiment is not required, and therefore, the number of assembly steps can be reduced.
The latch member 30 is formed of a plate-like member, and has a substantially U-shape in which base end sides of the abutting arm portion 32 and the restricting arm portion 33 which are disposed to face each other are connected to each other. In addition, a substantially U-shaped recess is set as the restriction slit 34. The latch member 30 is disposed between the pair of base plates 24b, 24b of the housing 22, and is supported by the latch shaft 30C so as to be swingable along the plate surface of the base plate 24b between a release position P1 shown in fig. 2 and a restraint position P2 shown in fig. 4. Further, the latch member 30 is biased from the release position P1 side toward the restraint position P2 side by the biasing force of the restraint spring 36.
The latch shaft 30C supports both end portions of the latch shaft on the base plate 24b in a state of penetrating the plate surface abutting against the base end portion of the arm portion 32.
Further, an engagement recess 37 (latch engaging portion) is formed on the base end side of the outer peripheral portion of the abutment arm portion 32, and the engagement recess 37 is formed at an acute angle with respect to the tangential direction of a virtual circle having the latch shaft 30C as the center. The engagement recess 37 protrudes outward from the abutment arm 32, has a tooth surface intersecting a tangential direction of the outer peripheral portion in a direction of restricting movement from the restraint position P2 to the release position P1, and is shaped to be engageable with a locking claw 47 (a pawl engagement portion) of a pawl member 40 described later.
The tip end portion of the restraining arm portion 33 has a hook shape curved toward the abutting arm portion 32, and the leading end surface of the hook shape forms a guide surface 33 b.
As shown in fig. 2, the spacing dimension L34 of the restriction slit 34 (the dimension between the abutment arm portion 32 and the restriction arm portion 33) is set to be larger than the shaft diameter dimension L12 of the restricted portion 12.
The latch member 30 as described above is arranged such that the restricting arm portion 33 is located closer to the inlet portion 24c than the abutting arm portion 32.
In the state where the latch member 30 is located at the release position P1, the latch member is held at a predetermined rotational angle position by the biasing force of the restraint spring 36 (see fig. 5), and the restraint slit 34 opens along the movement trajectory of the restrained portion 12 of the striker 10 entering from the entry portion 24c into the restraint window 24 d. That is, the latch member 30 releases the striker 10 in the state of being located at the release position P1.
In a state where the latch member 30 is located at the restraint position P2, the restraint arm portion 33 blocks the entering portion 24c across the movement locus of the restrained portion 12, and restrains the restrained portion 12 in the restraint window 24 d. That is, the latch member 30 restrains the striker 10 in the state of being located at the restraining position.
The pawl member 40 has: a main body 42 formed in an L shape; an engaging arm portion 43 (first arm portion) which is positioned on one side of the main body portion 42 and has a locking claw 47 (pawl engaging portion) which engages with the engagement recess 37 at a limit position R2; and a movement restricting portion 44 (second arm portion) located on the other side of the main body portion 42. The pawl member 40 is disposed between the pair of brackets 24 so that the plate surface thereof and the plate surface of the latch member 30 overlap in parallel, and is supported by the pawl shaft 40C so as to be swingable between the restriction release position R1 and the restriction position R2.
The click shaft 40C is provided separately from the latch shaft 30C, and supports both ends of the body 42 on the base 24b in a state of penetrating the plate surface at the L-shaped corner thereof.
The engagement arm portion 43 is set to have a weight distribution larger than the weight of the movement restricting portion 44.
The engagement arm portion 43 is formed by extending one end side of the main body portion 42 bent in a crank shape. That is, the engagement arm portion 43 protrudes in an L shape from the plate surface of the main body portion 42.
The offset between the plate surface of the engagement arm 43 at the distal end portion of the engagement arm 43 obtained by bending the engagement arm 43 into a crank shape and the plate surface of the main body portion 42 is set to the extent of the thickness dimension of the latch member 30. Thus, when the latch member 30 is disposed so as to overlap the pawl member 40, the tip end portion of the engagement arm portion 43 is located at the same position as the plate surface of the latch member 30.
The locking claw 47 is an acute-angle projection provided to project from the inside of the L shape at the distal end portion of the engagement arm portion 43 along the plate surface so as to be engageable with the engagement recess 37. The locking pawl 47 is located at the restriction release position R1 at a position separated from the movement locus of the engagement recess 37 of the latch member 30 and not contributing to the operation of the latch member 30. Further, the locking claw 47 is located at a position where it can engage across the movement locus of the engagement recess 37 of the latch member 30 at the limit position R2. The locking claw 47 has a pressing surface 47a (see fig. 7 and 8) that presses the engagement recess 37 in a state of being engaged with the engagement recess 37 on a side facing the restriction release position R1.
The movement restricting portion 44 moves within the restriction window 24d within a swing range between the restriction release position R1 and the restriction position R2. A guide portion 44a, with which the to-be-constrained portion 12 of the striker 10 that is to be moved from the constraining position P2 to the releasing position P1 abuts, is formed on an end surface of the movement restricting portion 44. The guide portion 44a of the movement restricting portion 44 is shaped so as to face the restriction window 24d in a state of being located at the restriction release position R1, and so as to be separated from the movement trajectory of the striker 10 and follow the movement trajectory so as not to interfere with the insertion or removal of the striker 10.
The movement restricting portion 44 is configured to overlap with the tip end portion of the abutment arm portion 32 located at the release position P1 (see fig. 2) and overlap with the tip end portion of the restraint arm portion 33 located at the restraint position P2 (see fig. 4) in a state of being located at the restriction release position R1, and to be close to the tip end portion of the restraint arm portion 33 located at the restraint position P2 in a state of being located at the restriction position R2 (see fig. 8).
That is, the guide surface 33b of the restraining arm 33 and the movement restricting portion 44 of the pawl member 40 are configured so that the dimension between the tip end of the restraining arm 33 at the restraining position P2 and the movement restricting portion 44 at the restraining position R2 is smaller than the axial diameter dimension L12 of the restrained portion 12 without being obstructed by the restraint portion 12 entering the latch body 20 when the slide door S2 is closed.
Further, the dimension between the movement restricting portion 44 located at the restricting position R2 and the tip end of the constraining arm portion 33 is set to be smaller than the shaft diameter dimension L12 of the constrained portion 12, so that the following can be prevented: when a load is applied to the closed slide door S2 from the vehicle interior side and the slide door S2 moves from the vehicle interior side to the vehicle exterior side, the restrained portion 12 passes through and drops off between the distal end of the restraining arm portion 33 at the restraining position P2 and the movement restricting portion 44 at the restricting position R2.
The pawl member 40 as described above is located at the restriction release position R1 when the door is normally opened and closed, and does not act on the striker 10 and the latch member 30. Further, the swinging of the pawl member 40 from the restriction releasing position R1 to the restriction position R2 occurs only when: when a load is applied to the slide door S2 from the inside toward the outside of the vehicle and the slide door S2 moves from the inside toward the outside of the vehicle in a state where the slide door S2 is closed, the striker 10 abuts against the movement restricting portion 44.
In the vehicle latch device 1 of the present embodiment, in a state where the engagement recess 37 of the latch member 30 at the restraint position P2 is engaged with the locking claw 47 of the pawl member 40 at the restriction position R2 and the latch member 30 is locked, the state where the slide door S2 is closed is maintained, and when a passenger operates a door handle (not shown), for example, the lock of the latch member 30 is released. Then, the striker 10 is released from the latch member 30 (latch main body 20) by the latch member 30 being unlocked, and the slide door S2 can be opened.
Next, the operation of the vehicle latch device 1 configured as described above will be described.
First, in a state where the slide door S2 is opened, as shown in fig. 2, the latch member 30 is biased and held by the biasing force of the restraining spring 36 (see fig. 5) and is located at the release position P1. Further, the pawl member 40 is held in a state where the outer side of the engagement arm portion 43 abuts against the release abutment portion 26 by gravity balance (inertia moment), and is located at the restriction release position R1.
In the latch member 30 located at the release position P1, the restraint arm portion 33 is separated from the movement locus of the restrained portion 12 of the striker 10 when entering from the entering portion 24c into the restraint window 24d, and the restraint slit 34 is opened toward the striker 10 entering toward the entering portion 24c, and the leading end 32a of the abutment arm portion 32 is located on the front side of the restrained portion 12 (refer to fig. 3).
On the other hand, the locking claw 47 of the pawl member 40 located at the restriction release position R1 is located at a position not contributing to the operation of the latch member 30 by being separated from the movement locus of the engagement recess 37 of the latch member 30.
In a state where the latch member 30 is located at the release position P1 and the pawl member 40 is located at the restriction release position R1, a part of the movement restricting portion 44 overlaps the front end 32a of the abutment arm portion 32, and an entry path of the restricted portion 12 is formed by the guide surface 33b of the restricting arm portion 33 and the movement restricting portion 44.
Next, when the slide door S2 is closed from the open state, as shown in fig. 3 and 4, the restrained portion 12 abuts against the front end 32a of the abutment arm portion 32, and the latch member 30 is moved from the release position P1 to the restraining position P2 against the urging force of the restraining spring 36. That is, the latch member 30 rotates counterclockwise in the drawing about the latch shaft 30C. At this time, the restraining arm portion 33 of the latch member 30 moved to the restraining position blocks the entering portion 24c across the movement locus of the restrained portion 12, and restrains the restrained portion 12 in the restraining window 24 d.
The pawl member 40 does not move and remains in the restriction release position R1. That is, the pawl member 40 does not function for normal opening and closing of the slide door S2.
In a state where the latch member 30 is located at the restraint position P2 and the pawl member 40 is located at the restraint release position R1, a part of the movement restricting portion 44 overlaps with the tip end portion of the restraint arm portion 33 to restrict the movable range of the restrained portion 12 within the restraint window 24 d.
Next, as shown in fig. 7, when a load is applied to the slide door S2 from the inside to the outside of the vehicle from the inside in a state where the slide door S2 is closed, and the slide door S2 is moved in a direction to open from the inside to the outside of the vehicle, the restricted portion 12 of the striker 10 is moved in a direction to disengage from the latch body 20. When the striker 10 abuts on the movement restricting portion 44, the pawl member 40 rotates about the pawl shaft 40C (in the direction of arrow F1 shown in fig. 7) by the striker 10 and moves from the restriction release position R1 to the restriction position R2. At this time, the locking claw 47 of the pawl member 40 moved to the regulation position R2 can engage with the engagement recess 37 of the latch member 30 by crossing the movement locus of the engagement recess 37.
On the other hand, the abutment of the restrained portion 12 against the abutment arm portion 32 at the restraining position P2 is released, and therefore the latch member 30 is acted upon by the urging force of the restraining spring 36 in the direction of moving from the restraining position P2 to the release position P1 (the direction of arrow E1 shown in fig. 7). Therefore, when the engagement recess 37 is engaged with the locking claw 47, the movement of the latch member 30 is prevented, and the engaged state is firmly held by the urging force of the latch member 30.
Then, a part of the movement restricting portion 44 is close to the tip end portion of the restricting arm portion 33, and the movement of the restricted portion 12 is restricted by the inner surfaces of the movement restricting portion 44 and the restricting arm portion 33 coming into contact with the restricted portion 12.
Next, the operational effects of the vehicle latch device 1 according to the present embodiment will be described.
As shown in fig. 1 to 8, in the vehicle latch device 1 of the present embodiment, when the slide door S2 is displaced from the vehicle interior side to the vehicle exterior side and the restricted portion 12 abuts against the movement restricting portion 44 of the pawl member 40 in a state where the latch member 30 is located at the restricting position P2 and the restricted portion 12 of the striker 10 is restricted, the pawl member 40 is displaced from the restriction release position R1 to the restriction position R2, and the locking pawl 47 engages with the engagement recess 37 of the latch member 30. At this time, since the engaging arm portion 43 of the engaged locking claw 47 is set heavier than the movement restricting portion 44, a force in a direction in which the pawl member 40 is displaced from the restriction position R2 to the restriction release position R1 by an inertia moment due to the weight acts on the tooth surface of the engagement recess 37, and the engagement state is made firm by the pressing of the locking claw 47, so that the latch member 30 can be reliably held at the restriction position P2.
Thus, when a load from the vehicle interior side to the vehicle exterior side is applied to the slide door S2, the engagement between the engagement concave portion 37 and the locking claw 47 after the one-time engagement is prevented from disengaging, whereby the slide door S2 can be restrained, and the slide door S2 can be held in a state of closing the door opening portion S1. That is, the restricted portion 12 of the striker 10 can be prevented from passing through and disengaging between the latch member 30 and the pawl member 40, and the slide door S2 can be prevented from being opened carelessly. Therefore, the closed slide door S2 is stably held, and the deformation of the slide door S2 toward the outside of the vehicle can be restricted.
Further, according to the present embodiment, since the engagement recess 37 of the latch member 30 formed at an acute angle is engaged with the locking claw 47 of the pawl member 40, the latch member is configured not to be easily disengaged once engaged, and the slide door S2 can be restrained and the slide door S2 can be held in a state of closing the door opening portion S1.
In the present embodiment, when the guide portion 44a is pressed by the constrained portion 12, the entire pawl member 40 rotates about the pawl shaft 40C, and therefore the pawl member 40 can be reliably moved from the restriction release position R1 to the restriction position R2.
In the present embodiment, when the slide door S2 is displaced from the vehicle interior side to the vehicle exterior side and the restricted portion 12 abuts against the second arm portion of the pawl member in the state where the restricted portion 12 of the striker 10 is restricted, the pawl member 40 is displaced from the restriction release position R1 to the restriction position R2, and the latch member 30 is biased by the restriction spring 36 forming the biasing means in the direction of moving from the restriction position P2 to the release position P1, so that the engagement recess 37 moves toward the locking claw 47 side. Therefore, the amount of displacement of the pawl member 40 from the restriction release position R1 to the restriction position R2 can be small, and the engagement recess 37 and the locking claw 47 engage at an earlier timing, so that it is possible to more reliably prevent the restrained portion 12 from passing between the latch member 30 and the pawl member 40 and disengaging, and the sliding door S2 from being opened carelessly.
As described above, in the vehicle latch device according to the present embodiment, when a load from the vehicle interior side to the vehicle exterior side is applied to the slide door S2, the slide door S2 can be restrained and the slide door S2 can be held in a state of closing the door opening portion S1 by preventing disengagement after the first engagement.
Although the embodiments of the vehicle latch device according to the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be modified as appropriate within the scope of the invention.
For example, in the present embodiment, the latch engaging portion is directed to the engaging recess 37 formed at an acute angle with respect to the tangential direction of the imaginary circle centered on the latch axis 30C, and the pawl engaging portion is directed to the locking claw 47 having an acute angle corresponding to the engaging recess 37, but the shape is not limited to this.
In the present embodiment, the latch member 30 is biased by the restraining spring 36 in the direction of moving from the restraining position P2 to the release position P1, but may not be biased by such a biasing mechanism.
In addition, the components in the above-described embodiments may be replaced with known components as appropriate without departing from the scope of the present invention.
Claims (4)
1. A vehicle latch device in which a sliding door is openably and closably attached to a door opening of a vehicle body, the vehicle latch device comprising:
a striker disposed at a door opening of the vehicle body;
a latch member that is disposed in the slide door and that is supported so as to be rotatable between a restraint position that restrains the striker and a release position that releases the striker; and
a pawl member supported to be movable between a restriction position that restricts movement of the latch member located at the restriction position to a release position and a restriction release position that is a position separated from a movement locus of the latch member,
the latch member has a latch engaging portion formed with a tooth surface intersecting with a tangential direction of the outer peripheral portion,
the pawl member has:
a first arm portion that is positioned on one side of a pawl axis and has a pawl engagement portion that engages with the latch engagement portion at the restriction position; and
a second arm portion located on the other side of the ratchet shaft with respect to the first arm portion,
the first arm portion is set to a weight distribution having a weight greater than that of the second arm portion,
when the slide door is displaced from the vehicle interior side to the vehicle exterior side and the striker abuts against the second arm portion of the pawl member in a state where the latch member is located at the restraint position and the striker is restrained,
the pawl member is displaced from the restriction release position to the restriction position, and the pawl engagement portion of the first arm portion engages with the latch engagement portion of the latch member that moves from the restriction position to the release position where the striker is released, thereby holding the latch member at the restriction position.
2. The latching device for a vehicle according to claim 1,
an engagement recess formed at an acute angle with respect to a tangential direction of an imaginary circle having a latch axis as a center is formed in the latch engaging portion,
an acute-angle-shaped locking claw corresponding to the engagement recess is formed in the pawl engagement portion,
the locking claw has a pressing surface that presses the engagement recess in a state of being engaged with the engagement recess.
3. The latching device for a vehicle according to claim 1,
a guide portion against which the striker to be moved from the restraining position to the releasing position abuts is formed on the second arm portion of the pawl member,
the striker presses the guide portion to move the pawl member from the restriction release position to the restriction position.
4. The vehicular latch device according to any one of claims 1 to 3,
the latch member is urged in a direction moving from the restraint position to the release position,
the pawl member is biased and held so as to move from the restricting position to the restriction releasing position in a state where the latch engaging portion is engaged with the pawl engaging portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-135549 | 2017-07-11 | ||
| JP2017135549A JP6459092B1 (en) | 2017-07-11 | 2017-07-11 | Latch device for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109236071A CN109236071A (en) | 2019-01-18 |
| CN109236071B true CN109236071B (en) | 2020-10-16 |
Family
ID=65083929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810618565.4A Active CN109236071B (en) | 2017-07-11 | 2018-06-15 | Latch device for vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6459092B1 (en) |
| CN (1) | CN109236071B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6915013B2 (en) * | 2019-10-04 | 2021-08-04 | 株式会社城南製作所 | Vehicle hood lock device |
| CN112983144B (en) * | 2021-03-19 | 2021-11-02 | 惠州市金雄城建筑科技有限公司 | Urban rail construction equipment based on BIM |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3338253B2 (en) * | 1995-10-20 | 2002-10-28 | 株式会社大井製作所 | Automotive door closure device |
| CN1590686A (en) * | 2003-09-02 | 2005-03-09 | 本田技研工业株式会社 | Remote door lock controller for vehicles |
| CN203567577U (en) * | 2011-02-28 | 2014-04-30 | 爱信精机株式会社 | Vehicle locking device |
| CN203669555U (en) * | 2013-12-23 | 2014-06-25 | 南京康尼机电股份有限公司 | Latch hook automatic locking mechanism for railway vehicle sliding doors |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5004280A (en) * | 1989-03-03 | 1991-04-02 | Itt Corporation | Variable power drive for sliding door |
| GB2415990B (en) * | 2004-07-06 | 2006-09-20 | John Phillip Chevalier | Latch arrangement |
| JP4795195B2 (en) * | 2006-10-17 | 2011-10-19 | 三井金属アクト株式会社 | Latch device |
| JP5817274B2 (en) * | 2011-07-14 | 2015-11-18 | 株式会社アンセイ | Vehicle door lock device |
| JP6497046B2 (en) * | 2014-11-28 | 2019-04-10 | アイシン精機株式会社 | Vehicle door actuator |
| JP2016186192A (en) * | 2015-03-27 | 2016-10-27 | アイシン精機株式会社 | Door lock arrangement and slide door guide device having door lock arrangement |
-
2017
- 2017-07-11 JP JP2017135549A patent/JP6459092B1/en not_active Expired - Fee Related
-
2018
- 2018-06-15 CN CN201810618565.4A patent/CN109236071B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3338253B2 (en) * | 1995-10-20 | 2002-10-28 | 株式会社大井製作所 | Automotive door closure device |
| CN1590686A (en) * | 2003-09-02 | 2005-03-09 | 本田技研工业株式会社 | Remote door lock controller for vehicles |
| CN203567577U (en) * | 2011-02-28 | 2014-04-30 | 爱信精机株式会社 | Vehicle locking device |
| CN203669555U (en) * | 2013-12-23 | 2014-06-25 | 南京康尼机电股份有限公司 | Latch hook automatic locking mechanism for railway vehicle sliding doors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109236071A (en) | 2019-01-18 |
| JP2019019452A (en) | 2019-02-07 |
| JP6459092B1 (en) | 2019-01-30 |
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