CN108868390A - locking device for vehicle - Google Patents
locking device for vehicle Download PDFInfo
- Publication number
- CN108868390A CN108868390A CN201810430704.0A CN201810430704A CN108868390A CN 108868390 A CN108868390 A CN 108868390A CN 201810430704 A CN201810430704 A CN 201810430704A CN 108868390 A CN108868390 A CN 108868390A
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- CN
- China
- Prior art keywords
- latch
- pawl
- switch
- state
- open
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B79/00—Mounting or connecting vehicle locks or parts thereof
- E05B79/10—Connections between movable lock parts
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
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- Lock And Its Accessories (AREA)
Abstract
The present invention obtains the simple locking device for vehicle of excellent in the detection accuracy of the action state of open-close body and structure.In the locking device for vehicle that the holding and releasing of the open-close body be opened and closed relative to car body are kept, have:Open-close body in slot and can be remained the fully locked position of full-shut position from making striker be able to enter the open position in slot and rotate to being located at striker by striker;Pawl is configured to rotate, and by engaging with the latch for being located at fully locked position, limitation latch is rotated to open position direction;And switch, when pawl positioned at the latch of fully locked position with engaging, the closed state of detection open-close body, in other states of pawl, the opening state of detection open-close body always.
Description
Technical field
The present invention relates to the locking device for vehicle that the holding being configured in the open-close body of vehicle is kept with releasing.
Background technique
In the car use locking device for vehicle, the locking device for vehicle by the open-close body being opened and closed relative to car body also
I.e. car door, luggage-boot lid remain off closed state.A side of this locking device for vehicle generally in open-close body and car body has
Standby striker, has the latch mechanism for being able to maintain striker and releasing holding in another party.If closing open-close body, striker enters
In the striker retention groove that the latch (also referred to as hook) for constituting latch mechanism is formed, and pawl (also referred to as ratchet wheel) engages with latch
To maintain the hold mode of striker.If latch rotation is protected to striker from striker relative to the engaging of clear-latch pawl
Slot disengaging is held, the opening action of open-close body is able to carry out.
Locking device is provided with the detection unit of detection action state.Generally, the holding of clear-latch striker is beaten
Open state keeps the lock state of striker to become detection object with latch, the former opening state is identified as beating for open-close body
Open state, the lock state of the latter are identified as the closed state of open-close body (referring for example to patent document 1).As locking shape
State, according to the difference of the rotation position of latch, there is only the complete fully locked states for keeping striker, and beat in the presence of setting
The case where half lock state between open state and fully locked state.
Patent document 1:No. 4944785 bulletins of Japanese Patent No.
Locking device described in Patent Document 1 has been detected in closed door according to the variation of the rotation position of pawl
Full lock state detects opening state according to the variation of the rotation position of latch when opening car door.In this locking device
In, on the one hand, it carries out engaging of the pawl with latch and releases, on the other hand, when latch is not rotated to opening direction, be detected as locating
In fully locked state.Specifically, it is assumed that exist carried out while pushing open-close body with hand etc. pawl latch-release it is dynamic
The case where making.But at this point, pawl has been released from the holding of latch, so being opened and closed if not releasing the pushing to closure
Body is in the open state, from the user etc. of notice vehicle, exists to be processed into and is not in fully locked state and reality
Above in the open state is situation appropriate.In the locking device of citation 1, this demand can not be coped with.
In addition, if dedicated switch is respectively set in latch and pawl, components number, manufacturing cost, device it is big
Small, accuracy control etc. is unfavorable, it is desirable to the state detection of locking device is carried out with structure as simple as possible.
Summary of the invention
The present invention is to complete the detection accuracy, and it is an object of the present invention to provide the action state in open-close body in view of problem above point
The upper simple locking device for vehicle of excellent and structure.
Locking device for vehicle of the invention is characterized in that having:Striker is set to car body and relative to the car body
Bearing is the side in the open-close body that can be opened and closed;Latch, the another party being set in car body and open-close body, being formed with can
For the slot that striker enters, and the open position that the slot can be able to enter from striker rotates to being located at striker in the slot and will open
Closure remains the fully locked position of full-shut position;Pawl is configured to rotate, by be located at fully locked position
Latch engaging, limitation latch rotated to open position direction;And switch, in pawl and the door bolt for being located at fully locked position
When lock card closes, the closed state of detection open-close body, in other states of pawl, the opening state of detection open-close body always.
According to the locking device for vehicle, loyalty can be obtained and reflect pawl relative to the engaging of latch and engaging solution
The excellent detection accuracy for the state removed.In addition, due to the dedicated switch that can be not provided with the movement for detecting latch, institute
Can be realized the simplification of structure.
The rotation position that directly detection pawl can be made to switch can also be arranged during the rotation with pawl linkedly rotates
After bar, the state change of switch is made according to the rotation of relaying bar.
It is preferably configured as, in the case where setting relays bar, there is the driving unit for making to relay bar rotation, relaying bar has
Rotation can be transferred to the ratchet-actuated portion of pawl, if passing through driving unit in the state that pawl engages relative to latch
Make to relay bar rotation, then releases engaging of the pawl with latch.There is Operation switch by relaying bar and operate answering for pawl both sides
Function is closed, components number can be reduced.
Additionally, it is preferred that relaying bar has rotationally constrained portion, and when pawl is rotated to the direction engaged with latch, rotation limit
Portion processed rotate relaying bar will not more to the direction compared to pawl.
It is preferred that having switch plate, which makes switch change on-state and off-state, by this
Switch plate applies spin load to relaying bar to a direction always.
As previously discussed, in accordance with the invention it is possible to obtain it is excellent in the detection accuracy of the action state of open-close body and
The simple locking device for vehicle of structure.
Detailed description of the invention
Fig. 1 is the figure for indicating the original state of locking device for vehicle.
Fig. 2 is the figure that the state of Fig. 1 is indicated with the angle different from Fig. 1.
Fig. 3 is the figure for indicating half lock state of locking device for vehicle.
Fig. 4 is the figure that the state of Fig. 3 is indicated with the angle different from Fig. 3.
Fig. 5 is the state for the midway for indicating that locking device for vehicle is shifted from half lock state to fully locked state
Figure.
Fig. 6 is the figure that the state of Fig. 5 is indicated with angle different from Fig. 5.
Fig. 7 is the figure for indicating the fully locked state of locking device for vehicle.
Fig. 8 is the figure that the state of Fig. 7 is indicated with the angle different from Fig. 7.
Fig. 9 is to indicate that in the lock out action of locking device for vehicle latch rotates the figure of the state to overtravel position.
Figure 10 is the figure that the state of Fig. 9 is indicated with the angle different from Fig. 9.
Figure 11 is to indicate that locking device for vehicle starts latch-release movement and abuts to relay the second arm of bar with pawl
The figure of next state.
Figure 12 is the figure that the state of Figure 11 is indicated with the angle different from Figure 11.
Figure 13 is the figure for the state for indicating that the locking of locking device for vehicle is released from.
Figure 14 is the figure that the state of Figure 13 is indicated with the angle different from Figure 13.
Figure 15 is to indicate that pawl is rotated to the state of overtravel position in the latch-release movement of locking device for vehicle
Figure.
Figure 16 is the figure that the state of Figure 15 is indicated with the angle different from Figure 15.
Figure 17 is the stereoscopic figure of locking device for vehicle.
Figure 18 is the figure after the part amplification of arrow XVIII meaning in Fig. 7.
Figure 19 is the cross-sectional view of the XIX-XIX line along Figure 18.
Figure 20 is the cross-sectional view of the XX-XX line along Figure 11.
Description of symbols:
10 ... locking devices;10A ... latch lock unit;10B ... driving unit;11 ... substrates;11a ... base plate;11b ... is convex
Edge;11c ... sidewall portion;11d ... sidewall portion;11e ... screw base;11f ... firing pin groove;11g ... limits edge part;12…
Pivot pin;13 ... pivot pins;14 ... latches;14a ... striker retention groove;14b ... half locks maintaining part;The fully locked maintaining part of 14c ...;
15 ... pawls;15a ... latch holding section;15b ... opening arms;15c ... returns to limitation protrusion;15d ... motion-stopping surface;15e ... stop
Protrusion;20 ... shells;20a ... supports wall portion;20b ... socket;20c ... retainer;21 ... motors;22 ... worm gears;22a ... is eccentric
Cam;23 ... relaying bars;24 ... detection switch;25 ... pivot pins;26 ... pivot pins;27 ... worm screws;28 ... first switch pieces;28a…
Buckling portion;29 ... second switch pieces;29a ... slit;30 ... first arms;31 ... second arms (ratchet-actuated portion);32 ... third arms
(rotationally constrained portion);33 ... the 4th arms;33a ... switchs operating surface;33b ... cover;40 ... central frames;41 ... boards;
42 ... covers;S ... striker.
Specific embodiment
Hereinafter, being described with reference to using embodiments of the present invention.The locking device for vehicle of present embodiment carries out
It relative to the locking to open-close body (car door, luggage-boot lid) and unlocks, above-mentioned open-close body is energy relative to car body bearing
Enough opening and closings, in the following description, after illustrating that the locking device for vehicle of present embodiment is applied to be set to vehicle
The case where locking device of the rear door (rear door) of face part.
Car body (illustration omitted) is provided with striker S, pacifies in the rear door (illustration omitted) that can be opened and closed relative to car body
Equipped with locking device 10.Double-head arrow T, double-head arrow W and double-head arrow H shown in figure are respectively indicated for the installation of locking device 10
Thickness direction (the vehicle front-rear direction in the state of closing rear door), width direction (vehicle width direction) and the height of rear door
It spends direction (the vehicle up and down direction in the state of closing rear door).By the state for closing rear door in height direction H
Under vehicle up direction indicated in figure with U, will be indicated in figure with D below vehicle.In addition, for being in contrast to this embodiment
Car body is provided with locking device 10 and rear door (open-close body) is provided with the mode of striker S, and the present invention can also apply.
Locking device 10 has:Latch lock unit 10A carries out the holding of striker S and keeps releasing;And driving unit
10B, makes latch lock unit 10A carry out the holding releasing movement of striker S, and latch lock unit 10A and driving unit 10B link.
Latch lock unit 10A has the substrate 11 being fixedly mounted relative to rear door.Substrate 11 has in mutually uneven
The base plate 11a and flange part 11b of capable plate, base plate 11a and flange part 11b are connected by a pair of sidewalls portion 11c, 11d
It connects.That is, flange part 11b is located at receiving sky in the presence of the accommodating space surrounded by base plate 11a and a pair of sidewalls portion 11c, 11d
Between outer rim.Flange part 11b is provided with multiple screw base 11e, is able to use the fixing screws for being inserted through each screw base 11e
(illustration omitted) and the nut (illustration omitted) screwed for fixing screws, is fastened and fixed to rear door for substrate 11.Will after
In the state of closing of the door, flange part 11b is approximately towards level.
The base plate 11a of substrate 11 have distance apart from flange part 11b with before the thickness direction T of rear door in turn
The inclination of variation.The edge part of the larger side of the distance apart from flange part 11b in base plate 11a is formed with can be for striker
The firing pin groove 11f that S enters.2 are formed with across firing pin groove 11f and is pivotally supported hole, are inserted into the hole that is pivotally supported of a side
There is pivot pin 12, is pivotally supported hole inserted with pivot pin 13 in another party.Pivot pin 12 is inserted through the axis hole formed in latch 14, latch 14
It is supported to rotate centered on pivot pin 12.Pivot pin 13 is inserted through the axis hole formed in pawl 15, and pawl 15 is supported to
It can be rotated centered on pivot pin 13.
Latch 14 has the striker retention groove 14a that being approximately towards centered on pivot pin 12 is formed radially.Striker retention groove
14a has width corresponding with the diameter of striker S, and striker S is able to enter in striker retention groove 14a.In the peripheral part of latch 14
Point, on the direction of rotation centered on pivot pin 12 differently with the position striker retention groove 14a, it is formed with half locking maintaining part
14b and fully locked maintaining part 14c.Half locking maintaining part 14b and fully locked maintaining part 14c is respectively provided with substantially along latch 14
Direction of the rotating radius extend snap-latch surface.
It is made to the force of latch 14 towards the counter clockwise direction in Fig. 1~Figure 16 by latch force application spring (illustration omitted)
Rotation.Latch 14 is abutted with the limitation edge part 11g for being set to substrate 11, thus limits rotation of the latch 14 to force direction,
Make the position open position (Fig. 1 and Fig. 2, Figure 13~Figure 16) of latch 14 at this time.Make latch 14 towards open position
Direction of rotation be opening direction, make the direction of rotation incoming direction of the opposite direction towards opening direction of latch 14.Door bolt
Lock 14 overcomes the active force of latch force application spring to rotate from open position to incoming direction, and thus latch 14 can successively be locked to half
(Fig. 3 and Fig. 4), fully locked position (Fig. 7 and Fig. 8, Figure 11 and Figure 12), overtravel position (Fig. 9 and figure are set in positioning
10) advance.
The position on the direction of rotation centered on pivot pin 13 of pawl 15 differently has latch holding section 15a and opening arms
15b.It is prominent from opening arms 15b to return to limitation protrusion 15c.Motion-stopping surface 15d and stop protrusion are formed in the side of pawl 15
15e。
It is made to the force of pawl 15 towards the clockwise direction in Fig. 1~Figure 16 by pawl force application spring (illustration omitted)
Rotation.The motion-stopping surface 15d of pawl 15 is abutted relative to the sidewall portion 11c of substrate 11, thus limits pawl 15 to force direction
Rotation, makes the fully locked holding position in position (Fig. 7~Figure 12) of pawl 15 at this time.Make pawl 15 towards fully locked
The direction of rotation of holding position is locking direction, locks the direction of rotation of the opposite direction towards locking direction of pawl 15
Release direction.Pawl 15 can overcome the active force of pawl force application spring to revolve from fully locked holding position to latch-release direction
Turn, overtravel position (Figure 15 and the figure abutted to stop protrusion 15e relative to the sidewall portion 11c of substrate 11 can be rotated
16)。
In the fully locked holding position of pawl 15, latch holding section 15a is located at the fully locked maintaining part 14c of latch 14
Motion track (rotational trajectory centered on pivot pin 12) on.In this state, by latch holding section 15a relative to complete
The snap-latch surface (end face of direction of rotation) for locking maintaining part 14c abuts, and limitation latch 14 is compared to fully locked position more to opening
Direction rotates (referring to Fig. 7 and Fig. 8).
Between fully locked holding position and overtravel position, pawl 15 also have half locking holding position (Fig. 3 and
Fig. 4) with latch-release position (Fig. 1, Fig. 2, Figure 13 and Figure 14).In half locking holding position, latch holding section 15a is located at door bolt
On the motion track (rotational trajectory centered on pivot pin 12) of half locking maintaining part 14b of lock 14.In this state, pass through door bolt
The snap-latch surface (end face of direction of rotation) for locking holding section 15a relative to half locking maintaining part 14b abuts, and limitation latch 14 is compared to half
Latched position is more rotated to opening direction.It (is locked completely at this point, pawl 15 does not limit latch 14 from half latched position to incoming direction
Positioning set) rotation.
That is, the fully locked holding position of pawl 15 is to maintain locking device 10 that striker S is introduced to firing pin groove 11f
Inside fully locked state position, pawl 15 half locking holding position be maintain locking device 10 striker S is introduced
To the position of half lock state of the midway of firing pin groove 11f.In pawl 15, compared to half latched position more to latch-release
The latch-release position (Fig. 1, Fig. 2, Figure 13 and Figure 14) that direction is advanced is the latch holding section 15a of pawl 15 from latch 14
The position kept out of the way completely on the motion track of (especially half locking maintaining part 14b and fully locked maintaining part 14c), if pawl 15
Latch-release position is reached, then latch 14 can not be rotated by pawl 15 to open position in which be limited.
Driving unit 10B has motor 21, worm gear 22, relaying bar 23 and detection switch 24 in shell 20.Shell 20
There is extension in height direction H and width direction W with bearing wall portion 20a, the bearing wall portion 20a, on bearing wall portion 20a
It has been provided for erecting pivot pin 25 and pivot pin 26.Pivot pin 25 and pivot pin 26 are in substantially parallel relationship.
Shell 20 has socket (socket) 20b for the electronic control unit that can connect illustration omitted, motor 21 and inspection
Switch 24 is surveyed to connect by the terminal in socket 20b with electronic control unit.The driving control of electronic control unit progress motor 21
System, and that detects detection switch 24 is switched on or switched off state.
Worm gear 22 can be rotatably supported in shell 20 centered on pivot pin 25.With the prominent and and worm gear from motor 21
The worm screw 27 of 22 engagements, if driving worm screw 27 to rotate by motor 21, worm gear 22 is rotated centered on pivot pin 25.Worm gear 22 has
There is radial position with the eccentric cam 22a of the shape changed in turn before direction of rotation.
Relaying bar 23 can be rotatably supported in shell 20 centered on pivot pin 26.Relaying bar 23 has been integrally formed root
Contacted according to the opening bar of the rotation position of the drive control pawl 15 of motor 21 and with detection switch 24 to control connection or
The switch lever of disconnection.Relaying bar 23, which has from the central part being pivotally supported in pivot pin 26, extends the of configuration to different directions respectively
One arm 30, the second arm 31, third arm (rotationally constrained portion) 32 and the 4th arm 33.
First arm 30 substantially extends to the top of height direction H from the bearing position of pivot pin 26, and the front end of the first arm 30 is attached
Peri position is on the rotational trajectory of eccentric cam 22a for being set to worm gear 22.Therefore, if worm gear 22 rotates, before the first arm 30
End is nearby pressed by eccentric cam 22a, and relaying bar 23 rotates (swing) centered on pivot pin 26.
Second arm 31 substantially extends to the lower section of height direction H with third arm 32 from the bearing position of pivot pin 26, and phase
Mutually separated in width direction W.In the state of after combining latch lock unit 10A with driving unit 10B, the opening arms of pawl 15
15b and return limitation protrusion 15c are between the second arm 31 and third arm 32.Second arm 31 can be with the side of opening arms 15b
It abuts, third arm 32 can be abutted with limitation protrusion 15c is returned.
4th arm 33 substantially extends to width direction W from the bearing position of pivot pin 26, and the front end of the 4th arm 33 is located at can
The position of pressing detection switch 24.
Detection switch 24 is the leaf switch with a pair of of leaf spring that is, first switch piece 28 and second switch piece 29.First
Switch plate 28 is formed by metal plate respectively with second switch piece 29, is supported in shell 20 with being not fixed the cantilever position of front end,
And it contacts with each other or separates in plate thickness direction flexible deformation.(sketch map is saved by the electronic control unit connecting with socket 20b
Show), the on state that first switch piece 28 is contacted with second switch piece 29 is detected as switch connection, by first switch piece 28 with
The isolated nonconducting state of second switch piece 29 is detected as switch and disconnects.
As shown in figure 18, the front end of first switch piece 28, which becomes, is bent into chevron and bends towards what second switch piece 29 extended
The end of pars convoluta 28a, buckling portion 28a contact or separate relative to second switch piece 29.Being provided in shell 20 can be for
The retainer 20c that the front end of two switch plates 29 nearby abuts.It is abutted by second switch piece 29 with retainer 20c, limitation second
Movement (deformation) of the switch plate 29 to the direction close to first switch piece 28.First switch piece 28 is not in the state of applying external force
It maintains from the isolated state of second switch piece 29 (that is, switch off state).
As shown in Figure 19 and Figure 20, second switch piece 29 has a pair of of contact chip, their thickness direction T in rear door
On be located separately, this to being formed with slit 29a between contact chip.The front end of buckling portion 28a in first switch piece 28 at
For triangle, which enters the slit 29a of second switch piece 29.
4th arm 33 of relaying bar 23 has the switch operating surface 33a abutted with the buckling portion 28a of first switch piece 28.It opens
The flexure plane that operating surface 33a is convex is closed, the regulation different from the simple barrel surface centered on the axis of pivot pin 26 is included
Cam face.Abutting state change by switch operating surface 33a relative to buckling portion 28a, to pressing for first switch piece 28
Pressure amount variation, thus it enables that detection switch 24 is switched on or switched off state change.
In addition, utilizing the 28 push switch operating surface of first switch piece on the basis of from the isolated state of second switch piece 29
The power of 33a acts on the anticlockwise active force to Fig. 1~Figure 16 to relaying bar 23.The first switch piece 28 will be passed through
Active force makes the direction of rotation for relaying the rotation of bar 23 be set as switch disconnection direction, will be with the reversed (Fig. 1~Figure 16 in above-mentioned direction of rotation
Clockwise direction) the direction of rotation of relaying bar 23 be set as switch connection direction.
As shown in Figure 18~Figure 20, the 4th arm 33 for relaying bar 23 has lid with switch operating surface 33a adjoining position
Portion 33b.In the state of switching operating surface 33a and buckling portion 28a contact, the side of cover 33b partial mulching buckling portion 28a is come
Movement of the limitation first switch piece 28 to thickness direction T (from the direction that bearing wall portion 20a leaves).That is, inhibiting first switch piece
28 positional shift under switch connection state come prevent detection switch 24 generate error detection.
Latch lock unit 10A and driving unit 10B is tied on the basis of being covered each by internal structure shown in Fig. 1~Figure 16
It closes.Specifically, as shown in figure 17, central frame 40, substrate 11 and board are placed on the substrate 11 of latch lock unit 10A
41, which clip central frame 40, is fastened and fixed.In driving unit 10B, the opening portion of shell 20 is closed by cover 42.Moreover,
By abutting the lower end of shell 20 with the flange part 11b of substrate 11, and by board 41 relative to shell 20 and cover
42 are screwed, and become the completion status of locking device 10 obtained by combining latch lock unit 10A with driving unit 10B.
If combining latch lock unit 10A with driving unit 10B, becomes the opening arms 15b of pawl 15 and return to limitation and dash forward
The relationship between the second arm 31 and third arm 32 that 15c is located in relaying bar 23 is played, relaying bar 23, which becomes, to be interlocked with pawl 15
State.
Locking device 10 with the above structure acts as described below.Fig. 1 and Fig. 2 indicates that locking device 10 does not carry out
The original state (unlocked state) of the holding of striker S.Latch 14 is located at open position, does not maintain in striker retention groove 14a
Striker S.That is, rear door is not turned off.Side (the periphery of latch 14 that the side of latch holding section 15a locks maintaining part 14b with half
Face) it abuts, rotation of the limitation pawl 15 to half locking holding position and fully locked holding position, thus pawl 15 is kept
In latch-release position.
It is abutted by third arm 32 with limitation protrusion 15c is returned, limits the relaying bar 23 under original state by first switch
Piece 28 exerts a force and disconnects the rotation of direction (counter clockwise direction of Fig. 1) to switch, and switch operating surface 33a pressing buckling portion 28a makes to examine
Survey switch 24 is switch connection state.First arm 30 of relaying bar 23 does not abut with eccentric cam 22a, limits protrusion by returning
The abutting of 15c and third arm 32 determines the position of relaying bar 23.The opening arms 15b of pawl 15 and the second arm 31 of relaying bar 23 divide
From.
If closing rear door, striker S enters the opening portion of striker retention groove 14a Yu firing pin groove 11f.In latch
14 are located in the state of open position, and the inner surface of striker retention groove 14a is in relative to striker S to firing pin groove 11f's
The relationship (referring to Fig. 2) that approach axis intersects, striker S enters in striker retention groove 14a and presses the interior of striker retention groove 14a
Surface.As a result, latch 14 overcome the active force of latch force application spring (not shown) from open position to incoming direction (Fig. 2's is suitable
Clockwise) start to rotate.
If latch 14 rotates specified amount to incoming direction, become Fig. 3 and half lock state shown in Fig. 4.It is locked half
Determine under state, by the active force of pawl force application spring (not shown), pawl 15 is more rotated to locking direction compared to original state
And become half locking holding position, engage latch holding section 15a with half locking maintaining part 14b.Pass through the engaging, 14 quilt of latch
It is maintained at half latched position, the rotation to opening direction is limited.Side and fully locked holding by latch holding section 15a
The side of portion 14c abuts, and rotation of the pawl 15 to locking direction is limited to midway.
When becoming half lock state from original state, relaying bar 23 by the pressing force born from first switch piece 28,
Third arm 32 is set to follow the movement of return limitation protrusion 15c as caused by the rotation of pawl 15 and disconnect direction slightly towards switch
Rotation.But rotation of the pawl 15 to locking direction is limited to midway, and switching operating surface 33a has maintenance to buckling
Thus the defined cam surface shape of the pressing of portion 28a maintains switch operating surface 33a still to press buckling portion 28a and make buckling
Portion 28a contacts the state of (switch connection of detection switch 24) with second switch piece 29.At this point, the first arm 30 not with eccentric cam
22a is abutted, and the abutting by returning to limitation protrusion 15c and third arm 32 determines the position of relaying bar 23.That is, returning to limitation protrusion
15c and third arm 32 limit rotation amount, so that relaying bar 23 is not more than pawl 15 to lock to the rotation that switch disconnects direction
Determine the rotation in direction.
Fig. 5 and Fig. 6 indicates latch 14 from half lock state further to the postrotational state of incoming direction.Latch engaging
Portion 15a is fully latched the side pressing of maintaining part 14c and pushes pawl 15 to latch-release direction, returns to limitation protrusion 15c
Pushing third arm 32 rotates relaying bar 23 to switch connection direction.Therefore switch operating surface 33a pressing buckling portion 28a is maintained to make
Buckling portion 28a contacts the state of (switch connection of detection switch 24) with second switch piece 29.In addition, at this point, switch operating surface
The shape of 33a is set to that first switch piece 28 will not be applied excessive pressing force.In addition, the first arm 30 not with eccentric cam
22a is abutted.
Fig. 7 and Fig. 8 shows latch 14 reach fully locked position fully locked state.Under fully locked state,
By the acting force of the spring of pawl force application spring (not shown), pawl 15 is further rotated to locking direction compared to half lock state
And become fully locked holding position, engage latch holding section 15a with fully locked maintaining part 14c.Pass through the engaging, limitation
Latch 14 is rotated to opening direction.The striker retention groove 14a of latch 14 become relative to substrate 11 firing pin groove 11f substantially
Orthogonal state, latch 14 limit striker S and are detached from from firing pin groove 11f and striker retention groove 14a.Pass through motion-stopping surface 15d
It is abutted with the sidewall portion 11c of substrate 11, limitation pawl 15 is compared to fully locked holding position more to the rotation of locking direction.
If the rotation of pawl 15, to fully locked holding position, the return of pawl 15 limits protrusion 15c from relaying bar 23
Third arm 32 leaves and (forms gap M1 shown in Fig. 8).In addition, maintaining the second of the opening arms 15b of pawl 15 and relaying bar 23
The isolated state of arm 31 (forms Fig. 7 and gap M2 shown in Fig. 8).Therefore, the position of the nonintervention of pawl 15 relaying bar 23.
The relaying bar 23 that holding based on pawl 15 is released from releases the state of pressing first switch piece 28.Then, first
Switch plate 28 is by the restoring force of spring to which buckling portion 28a (is formed shown in Fig. 7 and Figure 19 from the separation of second switch piece 29
Gap M3), detection switch 24 becomes switch off state (8 and Figure 19 referring to Fig.1).Relaying bar 23 is pressed by first switch piece 28
It presses to switch disconnection direction to rotate, the front end of the first arm 30 is made nearby to abut with eccentric cam 22a and limit relaying bar 23 into one
Walk the rotation that direction is disconnected to switch.In this state, as shown in figure 18, the end for relaying the switch operating surface 33a of bar 23 is attached
Closely face buckling portion 28a.
If the switch of detection switch 24 disconnects, detect that locking device 10 becomes fully locked shape by electronic control unit
State (that is, rear door becomes closed state).Detection switch 24 is spine at the time of becoming switch off state from switch connection state
Pawl 15 engages to latch holding section 15a with the fully locked maintaining part 14c of latch 14 to the rotation of fully locked holding position
Moment.That is, making latch 14 be maintained at the consistent to fully locked state transfer with reality of fully locked position by pawl 15
At the time of, carry out the detection of fully locked state (switch of detection switch 24 disconnects).
As shown in Fig. 9 and Figure 10, latch 14 can rotate to compared to fully locked position further to before incoming direction
Into overtravel position.By the mistake that the component in locking device 10, assembling in the setting of latch 14 overtravel position, can be absorbed
Difference realizes reliable lock out action.It rotates because of the impetus of striker S to overtravel position, latch 14 is exerted a force by latch
The active force of spring (illustration omitted) to opening direction return, fully locked maintaining part 14c abutted with latch holding section 15a thus
Latch 14 stops at fully locked position (Fig. 7 and Fig. 8).
If latch 14 is rotated to overtravel position, fully locked maintaining part 14c leaves from latch holding section 15a.Pass through
The abutting of motion-stopping surface 15d and sidewall portion 11c, pawl 15 are more limited to the rotation of locking direction compared to fully locked holding position
System, so even fully locked maintaining part 14c leaves from latch holding section 15a, pawl 15 does not follow latch 14 yet and maintains
Fully locked holding position.Therefore, the switch off state of detection switch 24, which does not change, (maintains shown in Fig. 9 and Figure 19
Gap M3), still detection is in fully locked state.In this way, by carrying out detection switch on the basis of the position of pawl 15
24 detection can not be influenced by the change in location between the fully locked position and overtravel position of latch 14, and be realized
The detection of high-precision and stable fully locked state.
Figure 11 and Figure 12 indicates that latch-release acts next state since fully locked state drive motor 21.Benefit
With the rotation for the worm gear 22 that driving force is come from the transmitting of worm screw 27, the first arm 30 of eccentric cam 22a pressing is to relay bar 23 to opening
Close and connect direction and slightly rotate, thus under fully locked state existing second arm 31 and opening arms 15b gap M2 (Fig. 7
And Fig. 8) disappear, become the state of the transmitting rotation from relaying bar 23 to pawl 15.
The state of Figure 11 and Figure 12 indicates the moment that the second arm 31 is abutted with opening arms 15b, and pawl 15 does not start from complete
Rotation of the full locking holding position to latch-release direction.Moreover, detection switch 24 continues to out under fully locked state
Open state is turned off, the fully locked state for reflecting latch holding section 15a and fully locked maintaining part 14c locking can be obtained
Detection result.
Figure 20 indicates the state of detection switch 24 at this time.It is rotated, is opened slightly towards switch connection direction by relaying bar 23
It closes operating surface 33a and presses first switch piece 28, thus the buckling portion 28a compared with fully locked state (there are the states of gap M3)
Closer to second switch piece 29.Here, as shown in figure 20, the apex portion of the front end for being formed as triangle of buckling portion 28a into
Enter the slit 29a of second switch piece 29, therefore on 2 sides for clipping vertex of the front end of buckling portion 28a and second switch piece 29
In slit 29a two edges part between there are gap M4.That is, buckling portion 28a is not contacted with second switch piece 29, switch is disconnected
Open state is maintained.As a comparison, Figure 19 shows 2 for clipping vertex of the front end of the buckling portion 28a under fully locked state
Gap M5 between the two edges part of the slit 29a of side and second switch piece 29.Gap M5 is greater than gap M3 and gap M4,
Even if the difference of gap M5 and gap M3, which become relaying bar 23, rotates also maintenance switch from fully locked state to switch connection direction
The surplus (margin) of off-state.
If continuing drive motor 21 (latch-release movement) from the state of Figure 11 and Figure 12, eccentric cam 22a pressing
First arm 30 is further rotated to switch connection direction to relay bar 23, and the second arm 31 presses opening arms 15b, thus pawl 15
The active force of pawl force application spring (illustration omitted) is overcome to rotate to latch-release direction.
Figure 13 and Figure 14 indicate by drive motor 21 to the rotation of pawl 15 to release latch holding section 15a relative to
The state of the latch-release position of the locking of fully locked maintaining part 14c.By releasing rotation of the pawl 15 relative to latch 14
Limitation, latch 14 are rotated from fully locked position to open position by the active force of latch force application spring (illustration omitted), from
Striker retention groove 14a discharges striker S.
As shown in Figure 13 and Figure 14, when relaying bar 23 makes the rotation of pawl 15 to latch-release position, in the 4th arm 33
Switch operating surface 33a overcome first switch piece 28 load push buckling portion 28a connect buckling portion 28a with second switch piece 29
Touching, detection switch 24 are switched to switch connection state from switch off state (Figure 11, Figure 12 and Figure 20).It is connect to switch at this
In the switching of logical state, by electronic control unit detection go out locking device 10 released fully locked state (that is, rear door at
It is in an open state).At the time of the detection and release roughly the same at the time of locking of the pawl 15 relative to latch 14 therefore practical
Mechanism on latch-release with detection (switch connection of detection switch 24) electrically at the time of match.
As shown in Figure 15 and Figure 16, in order to carry out reliable latch-release, relaying bar 23 makes the rotation of pawl 15 to than lock
Surely the overtravel position that position (Figure 13 and Figure 14) further advances to latch-release direction is released.By being set to pawl 15
Stop protrusion 15e abutted with the sidewall portion 11c of substrate 11, limit the further rotation to latch-release direction of pawl 15.?
In the state of the rotation to overtravel position of pawl 15, the switch connection state for maintaining detection switch 24 is also continued.In order to make pawl
15 rotations relay lock release state of the bar 23 compared to Figure 13 and Figure 14 further to switch connection direction to overtravel position
Rotation.At this point, the shape of switch operating surface 33a is set to, excessive pressing force will not be applied to first switch piece 28.Specifically
For, by making cylindrical shape of the switch operating surface 33a of the part centered on the axis of pivot pin 26, even if relaying bar 23
Rotation, can also be such that the pressing state to first switch piece 28 will not change.
If continuing the rotation of worm gear 22 from the state of Figure 15 and Figure 16 to which eccentric cam 22a passes through the first arm 30 of pressing
Position, then release pressing of second arm 31 to opening arms 15b of relaying bar 23.Then, pawl 15 passes through pawl force application spring
The active force of (illustration omitted) is rotated to locking direction.In this state, latch 14 has been rotated to the open position, (door bolt of pawl 15
Lock holding section 15a) it is abutted with the peripheral part of latch 14 (half locking maintaining part 14b), pawl 15 is thus limited to locking direction
It rotates (referring to Fig.1 and Fig. 2).If worm gear 22 reaches Fig. 1 and position shown in Fig. 2, stop the driving of motor 21, locks
Device 10 is back to original state (Fig. 1 and Fig. 2).
As previously discussed, in the locking device of present embodiment 10, independent of the position of latch 14, pawl is only detected
15 rotation position, the opening state that the closed state and rear door that thus detection rear door is closed are opened.More specifically, exist
Pawl 15 relative to be located at fully locked position latch 14 engage state (pawl 15 is located at the shape of fully locked holding position
State) under, the switch disconnection of detection switch 24 is maintained and the closed state of detection rear door, in other state (spine of pawl 15
Pawl 15 is located at than fully locked holding position more to the state in latch-release direction) under, detection switch 24 become switch connection and
Always the opening state of detection rear door.Moreover, by that can not be fastened with a bolt or latch only using the rotation position of pawl 15 as test object
The influence of the rotation position of lock 14, and realize reliable detection corresponding with the actual act state in latch lock unit 10A.
If for example, if wanting through the rotation detection fully locked state of latch 14, due in latch 14 from complete
There are half latched positions (Fig. 3 and Fig. 4), overtravel position (Fig. 9 to positive and negative direction of rotation for latched position (Fig. 7 and Fig. 8)
And Figure 10), so being difficult in the moment correct detection for actually becoming fully locked state.In contrast, in present embodiment
In, in the closed action of rear door, revolved according to the rotation of pawl 15 to limitation latch 14 from fully locked position to opening direction
The movement of the fully locked holding position turned, and change detection switch 24 (becoming switch from switch connection to disconnect), therefore can
Correct detection fully locked state.
In addition, when release while pushing rear door pawl 15 to latch 14 in the state that rear door is closed
Engaging (drive motor 21) as in the case where non-standard operation, rear door itself does not open wide, but becomes and produce pawl
15 states released relative to the holding of latch 14.If if being configured to the opening state by 14 detection rear door of latch,
Due to pushing rear door, thus latch 14 is not rotated to opening direction, so it is closing of the door state that detection, which goes out the state,.But
The locking of pawl 15 has released, if releasing pushing to rear door, rear door open (locking device 10 be back to Fig. 1 and
The original state of Fig. 2), therefore, if being closing of the door state by the state detection, not with the state of actual locking device 10
Matching.In contrast, in the present embodiment, according to make pawl 15 from fully locked state to engaging release direction rotate it is dynamic
Make, detection switch 24 becomes switch connection, the opening state of detection rear door, therefore can obtain when eliminating with non-standard operation
The detection that is consistent of virtual condition.
When the rotation position that the rotation position without using latch 14 only passes through pawl 15 realizes that detection goes out the closing of rear door
In the case where state and opening state, it is assumed that may also be using pawl 15 directly with respect to switch contact as detection switch 24
Carry out the structure of switch motion.But restricted by the basic configuration of rear door, on the thickness direction T of car door, size, sky
Between be easy restricted.As shown in Fig. 2 etc., pawl 15 is generally configured to longitudinal direction towards thickness direction T, therefore fills as locking
Set the layout in 10, it is difficult to extend pawl 15 so as to direct Operation switch in thickness direction T.
In addition, as the other structures for abutting pawl 15 directly with switch, it is assumed that may also will constitute detection switch 24
First switch piece 28, second switch piece 29 extends into latch lock unit 10A.But if make cantilever-shaped leaf spring that is,
Detection switch 24 is prominent from driving unit 10B, then the stage before combination latch lock unit 10A and driving unit 10B, carry out group
When cooperating industry, there are the risks such as the deformation for generating detection switch 24.
It is different from this structure, in the present embodiment, pawl 15 is not extended in thickness direction T, will test switch 24
Length be suppressed to the length in the shell 20 for being accommodated in driving unit 10B, and via the relaying for being set to the side driving unit 10B
The on or off operation of the progress detection switch 24 of bar 23.Since relaying bar 23 is the first arm 30, the second arm 31 and third arm
32 substantially along height direction H extend and the 4th arm 33 substantially along width direction W extend shape, so can not be by thickness side
The restriction of configuration space on T is sized.
Especially because driving unit 10B is that motor 21 and worm gear 22 arrange in width direction W and relay (the first arm of bar 23
30, the second arm 31 and third arm 32) layout that extends along the height direction H of connection worm gear 22 and pawl 15, so can be
The lower section of motor 21 in shell 20 obtains space.Due to the space configuration detection switch 24 and extend configured with as pressing
The 4th arm 33 that the switch lever of operation detection switch 24 functions, so being capable of space effective use ground storage detection switch 24
And its operating unit (the 4th arm 33).
Also, due to that switch lever will be used as to play and the 4th arm 33 of function carries out latch-release behaviour with as to pawl 15
The opening bar of work and function the first arm 30, the integration of the second arm 31, and relaying bar 23 is constituted, so being able to suppress component
Number increases to become simple structure.It is integrated by making switch lever with bar is opened, will not both generate the precision between multiple bars
Error additionally aids high-precision switch operation.
In relaying bar 23, the second arm 31 and third arm 32 are from the central part supported by pivot pin 26 to height direction H
Lower section extends, and the 4th arm 33 prolongs from the central part supported by pivot pin 26 to the width direction W substantially vertical with height direction H
It stretches.Longest first arm 30 of length substantially extends to the lower section of height direction H compared with other arms 31,32 and 33, but first
Arm 30 and the second arm 31 and third arm 32 are not arranged as linearly, the first arm 30 with from pivot pin 26 leave tend to front end side,
And there is gradient from the direction that the 4th arm 30 leaves along on the W of width direction.Direction is configured according to the extension of such 4 arms
And the relationship of length, the center of gravity of relaying bar 23 are located at the adjacent central portion supported by pivot pin 26, therefore load when driving
It is smaller, and will not give detection switch 24 extra load change.
In addition, compared with the pawl 15 that length is restricted in the thickness directiont, it is relevant to the length of each arm setting etc.
Restrict the amount of rotational movement (amount of movement of the part of push switch) of less relaying the 4th arm 33 easy to increase of bar 23.It is specific and
Speech, locking device 10 progress before describe movement when, relay bar 23 in the 4th arm 33 front end portion (switch operating surface
Moving in rotation of amount of rotational movement 33a) greater than the front end portion of opening arms 15b, return limitation protrusion 15c in pawl 15
Amount.Thereby, it is possible to accurately control being switched on or switched off for detection switch 24 by relaying bar 23.
28 pairs of relaying bars 23 of first switch piece assign the active force that direction is disconnected to switch separated from second switch piece 29.
Relaying bar 23 is abutted by third arm 32 with limitation protrusion 15c is returned, and is limited by the rotation based on pawl 15, to relay bar
23 overcome the active force from first switch piece 28 to make 24 switch connection state of detection switch.In addition, relaying bar 23 is according to benefit
Rotation when pressing pawl 15 to latch-release direction with the driving of motor 21, releases the pressing to first switch piece 28, makes to examine
Survey switch 24 is switch off state.Therefore, be not provided with for relaying bar 23 apply spin load alone (except first opens
Close other than piece 28) forcing unit etc., detection switch 24 can be controlled with the less simple structure of components number.
More than, the present invention is illustrated based on illustrated embodiment, but the present invention is not limited to embodiment illustrated, as long as
Inventive concept is not departed from, it will be able to improve, change.
As described above, if it is considered that the conditions such as layout of locking device 10, preferably pawl 15 and detection switch 24 it
Between sandwiched relay bar 23, but the present invention be not excluded for pawl with switch the structure that directly abuts.As an example, with embodiment
Locking device 10 it is different, when the opening arms 15b surrounding space of pawl 15 is abundant, be also configured to examine in the space configuration
Switch is surveyed, thus the direct pressing detection switch of opening arms 15b.
In embodiments, the first switch piece 28 (buckling portion 28a) of detection switch 24 always with relaying bar 23 the 4th
Arm 33 (switch operating surface 33a), which abuts, applies active force, but is also configured to switch operation part in switch off state
It is separated from switch.
In embodiments, using the detection switch 24 by using the leaf switch of a pair of of leaf spring to constitute, in addition to this,
Any type of switch such as microswitch, touch-switch can be used.
In addition, can also only make and comparable a pair of of the plate of the first switch piece 28 of embodiment when using leaf switch
The leaf spring of a side in spring be can flexible deformation, make solid with the leaf spring of comparable another party of second switch piece 29 of embodiment
Surely it supports.That is, can also by second switch piece 29 support be, the second switch piece 29 of embodiment only with shell 20 only
The direction movement that dynamic portion 20c is abutted is limited, but is also limited to the reversed movement in the direction abutted with this.
The relaying bar 23 of embodiment is driven in latch-release by motor 21, but is also configured to, and is not only had
Based on the electric drive system of motor 21, and the electric drive system based on motor 21 can be omitted, and be configured to through
Bar 23 is relayed by operations such as lines,.
The locking device 10 of embodiment is used to keep the rear door of vehicle and releases to keep, and the present invention can removed
It is used in the locking device of whole open-close bodies in the vehicles such as car door (side car door etc.), luggage-boot lid other than rear door.
Claims (5)
1. a kind of locking device for vehicle, is characterized in that, have:
Striker, is set to car body and is the side in the open-close body that can be opened and closed relative to car body bearing;
Latch, the another party being set in the car body and the open-close body are formed with the slot that can enter for the striker,
And can be rotated from the open position that the striker is able to enter the slot to be located at the striker in the slot and will be described
Open-close body remains the fully locked position of full-shut position;
Pawl is configured to rotate, and by engaging with the latch for being located at the fully locked position, limits the door bolt
It locks and is rotated to the open position direction;And
Switch, when the pawl engages with the latch for being located at the fully locked position, open-close body described in detection
Closed state, in other states of the pawl, the opening state of open-close body described in detection always.
2. locking device for vehicle according to claim 1, wherein
Have the relaying bar that the rotation with the pawl linkedly rotates, and the switch is made according to the rotation of the relaying bar
State change.
3. locking device for vehicle according to claim 2, wherein
Have the driving unit for rotating the relaying bar,
The relaying bar has the ratchet-actuated portion that rotation can be transferred to the pawl,
If rotating the relaying bar by the driving unit in the state that pawl engages relative to the latch,
Release the engaging of the pawl with the latch.
4. locking device for vehicle according to claim 3, wherein
The relaying bar has rotationally constrained portion, when the pawl is rotated to the direction engaged with the latch, the rotation
Limiting unit rotate the relaying bar will not more to the direction compared to the pawl.
5. the locking device for vehicle according to any one of claim 2~4, wherein
The switch has switch plate, which makes the switch change on-state and off-state, leads to
It crosses the switch plate and spin load is applied to the relaying bar to a direction always.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2017-092326 | 2017-05-08 | ||
JP2017092326A JP6933491B2 (en) | 2017-05-08 | 2017-05-08 | Vehicle lock device |
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CN108868390A true CN108868390A (en) | 2018-11-23 |
CN108868390B CN108868390B (en) | 2021-06-15 |
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CN201810430704.0A Active CN108868390B (en) | 2017-05-08 | 2018-05-08 | Vehicle locking device |
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CN (1) | CN108868390B (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008223326A (en) * | 2007-03-13 | 2008-09-25 | Shiroki Corp | Locking device for vehicle |
CN101680246A (en) * | 2007-06-01 | 2010-03-24 | 法雷奥安全座舱公司 | Closing assisted electric lock for opening of automobile |
WO2016084786A1 (en) * | 2014-11-25 | 2016-06-02 | アイシン精機株式会社 | Vehicle door-locking device |
CN106014020A (en) * | 2016-07-20 | 2016-10-12 | 皓月汽车安全系统技术股份有限公司 | Self-suction tail door lock assembly |
CN106471197A (en) * | 2014-07-01 | 2017-03-01 | Gecom公司 | Motor vehicles door lock assembly |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10239734A1 (en) * | 2002-08-26 | 2004-03-11 | Brose Schließsysteme GmbH & Co.KG | Motor vehicle flap closure or the like |
DE10330194A1 (en) * | 2003-07-03 | 2005-01-20 | Brose Schließsysteme GmbH & Co.KG | Motor vehicle door lock |
-
2017
- 2017-05-08 JP JP2017092326A patent/JP6933491B2/en active Active
-
2018
- 2018-05-08 CN CN201810430704.0A patent/CN108868390B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008223326A (en) * | 2007-03-13 | 2008-09-25 | Shiroki Corp | Locking device for vehicle |
CN101680246A (en) * | 2007-06-01 | 2010-03-24 | 法雷奥安全座舱公司 | Closing assisted electric lock for opening of automobile |
CN106471197A (en) * | 2014-07-01 | 2017-03-01 | Gecom公司 | Motor vehicles door lock assembly |
WO2016084786A1 (en) * | 2014-11-25 | 2016-06-02 | アイシン精機株式会社 | Vehicle door-locking device |
CN106014020A (en) * | 2016-07-20 | 2016-10-12 | 皓月汽车安全系统技术股份有限公司 | Self-suction tail door lock assembly |
Also Published As
Publication number | Publication date |
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JP2018188870A (en) | 2018-11-29 |
CN108868390B (en) | 2021-06-15 |
JP6933491B2 (en) | 2021-09-08 |
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Effective date of registration: 20220324 Address after: Kariya City, Aichi Prefecture, Japan Patentee after: AISIN Co.,Ltd. Address before: Kanagawa Patentee before: SHIROKI Corp. |