JPH07100985B2 - Latch position detection device for vehicle locking device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a latch position detecting device in a vehicle lock device.

(Prior Art) Conventionally, in a recess formed on the surface side of a synthetic resin body,
A latch that engages with a striker fixed to the vehicle body and a ratchet that prevents reverse rotation of the latch are axially mounted, and a detection unit mounting recess is formed in the recess, and a front cover and a back surface are provided in the detection unit mounting recess. A vehicle locking device having a cartridge-like half-latch state and a full-latch state detecting section formed of a side cover and connecting the detecting section to a control section provided at a desired position is disclosed in JP-A-63-206582. It is well known as described in the publication.

(Problems to be Solved by the Invention) The detection unit of the known example was formed in a cartridge shape composed of a front surface side cover and a rear surface side cover, but either one of the covers can be implemented without this, The configuration can be simplified.

(Object of the Invention) Therefore, the present invention has a simple structure with only one cover.

(Means for Solving the Problem) According to the present invention, there is provided a synthetic resin body 1 in which a striker 2 is fixed to a vehicle body side and a latch 4 and a ratchet 5 for preventing reverse rotation of the latch 4 are axially mounted on a door side. The half magnet 16 and the full magnet 17 are fixed around the shaft 6 of the latch 4 of the body 1 itself, and the half Hall IC 18 and the full Hall IC 19 are provided outside the magnets 16 and 17. A latch position detecting device in a vehicle locking device, in which a cover 14 is attached, and a magnetic force shielding plate 35 is provided between the magnets 16 and 17 and the Hall ICs 18 and 19 so as to rotate together with the latch 4 and sequentially shield the same.
Further, the striker 2 is fixed to the vehicle body side, and the synthetic resin body 1 axially mounting the latch 4 and the ratchet 5 for preventing the latch 4 from rotating in reverse is fixed to the door side. A cover 14 having a Hall IC 18 for half and a Hall IC 19 for full is attached around an axis 6 of the latch 4, and the magnet 4 for half and a magnet 17 for full are attached to a position near the cover 14 together with the latch 4. And a latch position detecting device in a vehicle lock device provided with a rotating body 28.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. 1 is a synthetic resin body of a lock device attached to a vehicle door, and 2 is a striker fixed to the vehicle body side. An accommodating recess 3 is formed on the front side of the body 1, and a latch 4 that engages with the striker 2 in the accommodating recess 3 and a ratchet 5 that prevents reverse rotation of the latch 4 are respectively provided by shafts 6 and 7. Stop the axis. Reference numeral 8 is a striker entry groove, 9 is a striker engagement groove, 10 is a half latch engagement groove, and 11 is a full latch engagement groove. Although not shown, a cover plate that covers the recess 3 is provided on the front side of the body 1, and a back plate is provided on the back side.

In the recess 3 of the synthetic resin body 1, the detection unit mounting recess 12 is provided.
To form. Magnet mounting holes 49 are formed in the bottom wall 48 of the detection unit mounting recess 12 at predetermined intervals in the rotation direction of the latch 4.
Forming 50. Magnets for half-latch are installed in the mounting holes 49 and 50.
16, the full latch magnet 17 is fixed by a desired means.
The magnets 16 and 17 may be attached by insert molding. A detection unit 13 is attached to the detection unit mounting recess 12.
The detection part 13 is a cover for closing the detection part mounting recess 12.
Have 14.

On the inner side of the cover 14, a half-latch Hall IC 18 and a full-latch Hall IC 19 are provided which face each other with a predetermined gap from the magnets 16 and 17. The Hall ICs 18 and 19 are composed of magnetic force detection units 20 and 21 that detect the magnetic forces of the magnets 16 and 17, and integrated circuits 22 and 23 that individually have address numbers.

The integrated circuits 22 and 23 have a ground (earth) side terminal 39,
It has 40 and signal terminals 41 and 42 for both address, data and power. The ground side terminals 39, 40
Is connected to the ground line 24, and the signal terminals 41 and 42 are connected to the signal line 25.

The Hall ICs 18 and 19 are connected in parallel to a control unit 26 provided at a desired position. The control unit 26 has an access mechanism,
The integrated circuit 22 of the Hall IC 18 and the integrated circuit 23 of the Hall IC 19 are sequentially accessed at a speed of about 10 times per second, and as a result, the integrated circuits 22 and 23 are connected to the magnetic force detecting units 20 and 21.
The magnetic force detection state of is sent to the control unit 26 as data. 27 is a contact pin.

28 is a rotating body having a fan-shaped rotating piece 29, and its rotation axis
30 is formed in a hollow sleeve shape, and the shaft 6 is loosely fitted in the rotary shaft 30.

The rotating shaft 30 projects outward from the shaft hole 31 of the cover 14, and the intermediate lever 33 is fitted and fixed to the projecting portion. A connecting pin 34 projecting to the front side is formed at the turning end of the intermediate lever 33, and the connecting pin 34 is locked to the latch 4. Therefore, when the latch 4 rotates by engaging with the striker 2, the rotary body 28 rotates via the intermediate lever 33.

A magnetic force shielding plate 35 is provided on the rotating piece 29. The magnetic shielding plate
When the latch 4 and the striker 2 are not engaged with each other, 35 does not shield the magnetic force of the magnets 16 and 17 in the half-latch state in which the ratchet 5 engages with the half-latch engagement groove 10 of the latch 4. In the full-latch state in which only the magnetic force of the magnet 16 is shielded by facing the half-latch Hall IC 18 and the magnet 16 and the ratchet 5 is engaged with the full-latch engagement groove 11 of the latch 4, the full-latch Hall IC 19 and the magnet The magnets 17 and 17 are shielded from the magnetic force of the magnets 16 and 17 so as to face them.

36 is a spring 36 for urging the rotating body 28 to rotate in the direction opposite to the arrow (FIGS. 1 and 4), and one end 43 of the spring 36 is a locking piece of the rotating body 28.
The other end 45 is engaged with the inner edge of the detection portion mounting recess 12. The spring 36 also serves as a return spring for the latch 4. Reference numeral 38 is a through hole formed in the body 1, and the ground wire 24 and the signal wire 25 are taken out through the through hole 38. The through hole 38 is sealed with a rubber seal or the like. Reference numeral 46 is a shaft hole for the shaft 6 formed in the body 1, and 47 is a shaft hole for the shaft 7 formed in the body 1.

Next, a second embodiment will be described. The mounting positions of the magnets 16 and 17 are different between the second embodiment and the first embodiment, and therefore the structure is slightly changed. That is, the magnets 16 and 17 are attached to the rotating piece 29, and the magnets 16 and 17 themselves are configured to be rotationally displaced in conjunction with the rotation of the latch 4. Therefore, the magnetic force shielding plate 35 of the rotating piece 29 becomes unnecessary.

In addition, in the above first embodiment and second embodiment, the magnet 1
6 and 17 are explained as two, but the larger one
Even if the individual magnets are used, they are exactly the same in function and effect.

(Operation) First Example After molding the synthetic resin body 1, the shaft 6 is passed through the shaft hole 32, and the magnets 16 and 17 are fixed to the magnet mounting holes 49 and 50 by desired means. The Hall ICs 18 and 19 are attached to the inner surface of 14 and the rotating shaft 30 of the rotating body 28 provided with the magnetic force shielding plate 35 is attached to the shaft hole 31.
When the detecting portion 13 is assembled into the detecting portion mounting recess 12 while inserting the sleeve-shaped rotary shaft 30 through the shaft 6, the detecting portion 13 is completely attached, and the detecting portion 13 is completely attached. When the other components such as 4 are assembled, the lock device is completed.

When the door is open, the latch 4 and the rotating body
28 is rotated and returned by the spring 36 in the direction opposite to the arrow, and the magnetic force shielding plate 35 is moved laterally. Therefore, the magnetic force detection units 20 and 21 of the Hall ICs 18 and 19 detect the magnetic force of the magnets 16 and 17. . For this reason, the control unit 26 operates at the speed of about 10 times per second
When the integrated circuit 22 of the IC 18 and the integrated circuit 23 of the Hall IC 19 are sequentially accessed, the integrated circuits 22 and 23 have the magnetic force detection unit.
The control unit uses the data that 20 and 21 are in the detection state as data.
Then, the control unit 26 detects that the door is open.

Next, when the door is started to be closed, the striker 2 enters the striker entry groove 8 of the body 1 and engages with the striker engagement groove 9 of the latch 4 to rotate the latch 4 in the arrow A direction. The rotary body 28 is similarly rotated via the intermediate lever 33. When the latch 4 rotates and the ratchet 5 engages with the half-latch engagement groove 10, it becomes a half-latch state.
The magnetic force shielding plate 35 of 29 faces between the Hall IC 18 and the magnet 16 and shields the magnetic force of the magnet 16 from the integrated circuit 22 of the Hall IC 18. Therefore, in the half-latch state, the integrated circuit 22 sends out the non-detected state as data and the integrated circuit 23 sends out the detected state as data in response to the access of the control unit 26. To detect.

Next, when the ratchet 5 is engaged in the full-latch engagement groove 11, the magnetic force shielding plate 35 is rotated between the Hall IC 19 and the magnet 17, and the magnetic force of the magnets 16 and 17 is applied to the Hall IC.
In order to shield from the integrated circuits 22 and 23 of 18, 19, the integrated circuit 22 sends the non-detection state as data in response to the access of the control unit 26, and the integrated circuit 23 also sends the non-detection state as data. The unit 26 detects the full latch state.

Second Embodiment After molding the synthetic resin body 1, the shaft 6 is passed through the shaft hole 46, and separately from this, the Hall ICs 18 and 19 are attached to the inner surface side of the cover 14, and the magnets 16 and 17 are provided in the rotating body 28. The rotary shaft 30 of the above is inserted into the shaft hole 31 to assemble the detecting portion 13, and while the sleeve-shaped rotary shaft 30 is inserted through the shaft 6, the detecting portion 13 is attached to the detecting portion mounting recess.
When it is mounted inside 12, the mounting of the detection unit 13 is completed, and when other structures such as the latch 4 are assembled, the lock device is completed.

When the door is open, the latch 4 and the rotating body
28 is rotated and returned in the direction opposite to the arrow A by the spring 36, and the magnet 1
Since 6 and 17 move laterally, the magnetic force detection units 20 and 21 cannot detect the magnetic force in the Hall ICs 18 and 19. Therefore, the control unit 26
When the integrated circuit 22 of the Hall IC 18 and the integrated circuit 23 of the Hall IC 19 are sequentially accessed at a speed of about 10 times per second, the integrated circuits 22 and 23 are in the non-detection state of the magnetic force detection units 20 and 21. This is sent to the control unit 26 as data, and the control unit 26 detects that the door is open.

Next, when the door is closed, the striker 2 enters the striker entry groove 8 of the body 1 and engages with the striker engagement groove 9 of the latch 4 to rotate the latch 4 in the arrow A direction. The rotating body 28 is similarly rotated via the lever 33. When the latch 4 rotates and the ratchet 5 engages with the half-latch engagement groove 10, it becomes a half-latch state.
The magnet 17 of 29 faces the Hall IC 18 and transmits the magnetic force of the magnet 17 to the integrated circuit 22 of the Hall IC 18. Therefore, in the half-latch state, the integrated circuit is
The control circuit 26 detects the half-latch state because 22 sends the detection state as data and the integrated circuit 23 sends the non-detection state as data.

Next, when the door is further rotated and the ratchet 5 is engaged with the full-latch engagement groove 11, the magnet 17 faces the Hall IC 19 and the magnet 16 faces the Hall IC 18, respectively.
Since the magnetic forces of the magnets 16 and 17 are transmitted to the integrated circuits 22 and 23 of the Hall ICs 18 and 19, the integrated circuit 22 sends the detected state as data to the access of the control unit 26, and the integrated circuit 23 also outputs the detected state as data. Then, the control unit 26 detects the full latch state.

(Effect) Conventionally, in the recess formed on the surface side of the synthetic resin body,
A latch that engages with a striker fixed to the vehicle body and a ratchet that prevents reverse rotation of the latch are axially mounted, and a detection unit mounting recess is formed in the recess, and a front cover and a back surface are provided in the detection unit mounting recess. A vehicle locking device having a cartridge-like half-latch state and a full-latch state detecting section formed of a side cover and connecting the detecting section to a control section provided at a desired position is disclosed in JP-A-63-206582. As described in the official gazette, it is publicly known, but the detection unit of the publicly known example is formed in a cartridge shape including a front surface side cover and a back surface side cover.

However, according to the present invention, the striker 2 is fixed to the vehicle body side, and the synthetic resin body 1 axially mounting the latch 4 and the ratchet 5 for preventing the latch 4 from rotating in reverse is fixed to the door side. A magnet 16 for half and a magnet 17 for full are attached around the shaft 6 of the latch 4, and a cover 14 having a Hall IC 18 for half and a Hall IC 19 for full is attached to the outside of the magnets 16 and 17, and the magnet 16 , 17 and the Hall ICs 18 and 19 are provided with a magnetic force shielding plate 35 that rotates together with the latch 4 and sequentially shields it, and a latch position detecting device in a vehicle lock device, and a striker 2 is fixed to the vehicle body side. On the door side, however, the latch 4 and the ratchet 5 that prevents the latch 4 from rotating in the reverse direction
By fixing a synthetic resin body 1 in which and are mounted,
Hall IC for half around the axis 6 of the latch 4 at the outer position of
Also, a cover 14 having a full Hall IC 19 is attached, and a half magnet 16 and a full magnet 17 are provided near the cover 14.
Since the latch position detecting device in the vehicle lock device is provided with the rotating body 28 that rotates together with the latch 4 to which the half magnet 16 and the full magnet 17 are attached to the body 1 itself. Since it is attached to the rotating body 28 that rotates together with the latch 4, the effect that the cover for attaching the magnet for half and the magnet for full is not necessary unlike the known example is obtained.

[Brief description of drawings]

1 is a partial cross-sectional plan view of a synthetic resin body, FIG. 2 is a partial cross-sectional view of the synthetic resin body of the first embodiment, and FIG. 3 is a sectional view taken along line AA of FIG. 4 is an exploded perspective view of the detection unit of the first embodiment, FIG. 5 is a wiring diagram of the Hall IC and the control unit, and FIG. 6 is an exploded perspective view of the detection unit of the second embodiment. Explanation of symbols 1 ... Synthetic resin body, 2 ... striker, 3 ... accommodating recess, 4 ... latch, 5 ... ratchet, 6 ... shaft,
7: shaft, 8: striker entry groove, 9: striker engagement groove, 10 ... half latch engagement groove, 11 ... full latch engagement groove, 12 ... detection section mounting recess, 13 ... detection section ,14……
Cover, 16 ... Magnet, 17 ... Magnet, 18 ... Hall IC, 19
…… Hall IC, 20 …… Magnetic force detector, 21 …… Magnetic force detector,
22 …… integrated circuit, 23 …… integrated circuit, 24 …… ground wire, 25
…… Signal line, 26 …… Control section, 27 …… Contact pin, 28
...... Rotating body, 29 ...... Rotating piece, 30 ...... Rotating shaft, 31 ...... Shaft hole, 33 ...... Intermediate lever, 34 ...... Connecting pin, 35 ...... Magnetic shield plate, 36 ...... Spring, 38 ... … Through hole, 39, 40 …… Ground side terminal, 41, 42 …… Signal terminal, 43 …… One end, 44 …… Locking piece, 45 …… Other end, 46,47 …… Shaft hole, 48… … Bottom wall, 49 ……
Magnet mounting hole, 50 ... Magnet mounting hole.

Claims (2)

[Claims] 1. A striker 2 is fixed to a vehicle body side, and a synthetic resin body 1 having a latch 4 and a ratchet 5 for preventing reverse rotation of the latch 4 is fixed to the door side, and the body 1 itself is fixed. A magnet 16 for half and a magnet 17 for full are attached around the shaft 6 of the latch 4, and a cover 14 having a Hall IC 18 for half and a Hall IC 19 for full is attached to the outside of the magnets 16 and 17, and the magnet 16 , 17 and the Hall ICs 18 and 19 co-rotate with the latch 4 to sequentially shield the magnetic force.
Latch position detecting device in a vehicle locking device provided with. 2. A striker 2 is fixed to the vehicle body side, and a synthetic resin body 1 having a latch 4 and a ratchet 5 for preventing reverse rotation of the latch 4 is fixed to the door side and the outside of the body 1 is fixed. A cover 14 having a Hall IC 18 for half and a Hall IC 19 for full is attached around the axis 6 of the latch 4 in one direction, and the latch 4 having a magnet 16 for half and a magnet 17 for full is attached in the vicinity of the cover 14. A latch position detection device in a vehicle lock device provided with a rotating body (28) that rotates together.