JPH0826706B2 - Vehicle locking device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a switch mechanism of a vehicle lock device.

(Prior Art) Conventionally, in a vehicle locking device that is fixed to a door side having a latch that engages with a striker that is fixed to a vehicle body, a ratchet for preventing reverse rotation of the latch is axially attached to a position below the latch. Stop, a switch mechanism is provided above the latch, an engaging pin is provided at the rotating portion of the latch, the lower end of the link is axially locked to the engaging pin, and the upper end of the link is connected to the switch mechanism. Such a vehicle lock device is known.

That is, there are two types of vehicle locking devices, a type A (Fig. 1) in which the ratchet a is located below the latch b, and a type B (Fig. 2) in which the ratchet a is located above the latch b. However, the type in which the switch c which is interlocked with the rotation of the latch b is provided above the latch b is limited to the type A.

(Problems to be Solved by the Invention) In the type A in which the ratchet a is provided at the lower portion of the latch b shown in FIG. 1, even if the switch c is provided at the upper position of the latch b, the latch b and the switch c are linked. Since it can be contacted by d, the switch c can be easily turned on / off by turning the latch b, which is extremely convenient. However, if the configuration for turning the switch c on / off by turning the latch b is carried out with a type B ratchet, The shaft e of a interferes with the attachment of the link d.

However, even with the B type, the link d can be attached by the following procedure, so that the switch c can be rotated by turning the latch b.
Can be turned on and off. Therefore, a lock with a switch having other characteristics of the lock device of the B type specification can be obtained.

(Object of the Invention) In a lock device of a type in which a ratchet is located above a latch, a switch mechanism provided at an upper position of the ratchet operates smoothly.

(Means for Solving the Problems) Therefore, according to the present invention, when the door is closed, the striker 5 fixed to the vehicle body side engages with the engagement groove 7 and rotates normally.
In a vehicle lock device fixed to a door side having a ratchet, a ratchet for engaging a full-latch engagement step portion 12 of the latch 4 at a position above the latch 4 to prevent the latch 4 from rotating in the reverse direction.
13 is locked by a ratchet shaft 14, a switch mechanism 18 is provided above the ratchet 13, an engaging pin 8 is provided at the rotating portion of the latch 4, and the engaging pin 8 has a vertical link.
The lower end of 25 is axially stopped, and an elongated hole 26 in a substantially vertical direction is formed at an intermediate position between the upper and lower sides of the link 25.
To engage the switch mechanism 18 with the upper end of the link 25.
The vehicle lock device is connected to the vehicle.

The present invention also provides the switch mechanism 18 as described above.
The rotary shaft 22 is provided with an arm 23 having a long hole 24, and the upper end of the link 25 is a vehicle locking device engaged with the long hole 24.

(Embodiment) An embodiment of the present invention will be described with reference to FIG.
Is a synthetic resin body of a lock device attached to a door, in which a concave portion 2 is formed on the front side of the body 1, and a latch 4 is pivotally attached to a lower portion of the concave portion 2 by a latch shaft 3. 5 is a striker attached to the vehicle body side, 6 is an entry groove formed in the body 1 into which the striker 5 enters, 7
Is an engagement groove formed on the outer peripheral surface of the latch 4 and engaged by the striker 5. When the striker 5 and the engagement groove 7 are engaged, the latch 4 rotates normally.

An engaging pin 8 is provided at an intermediate position of the rotating portion on the back surface side of the latch 4, and the engaging pin 8 engages with an arc-shaped groove 9 centered on the latch shaft 3 formed in the body 1. . One end of the arcuate groove 9 is formed as a linear groove, and a coil spring 10 is fitted in the linear groove. The coil spring 10 constantly pushes the engagement pin 8 to engage the latch 4 and the striker 5
The door is rotated to the temporary line position shown in the figure.

A half-latch engagement step 11 and a full-latch engagement step 12 are formed on the upper part of the outer circumference of the latch 4, and a ratchet 13 is formed on the half-latch engagement step 11.
Are engaged with each other to prevent the reverse rotation of the latch 4. Ratchet
The ratchet shaft 13 is pivotally mounted on the upper portion of the latch 4 by a ratchet shaft 14. An engaging pin 16 protruding to the back side is provided on the rotating end portion 15 of the ratchet 13, and the engaging pin 16 is bored in the body 1 and protrudes from the through hole 17 to the back side of the body 1. The engagement pin 16 is lowered by the action of the open lever that rotates by the door opening operation of the door opening handle, the pawl of the ratchet 13 is disengaged from the full-latch engagement step portion 12, and the latch 4 can be opened freely.

Although the ratchet 13 is also provided in the recess 2, a switch mechanism 18 is provided above the ratchet 13.

The switch mechanism 18 has a fixed contact 19 and a movable contact 20,
An arm 23 is fixed to a rotary shaft 22 (parallel to the latch shaft 3 and the ratchet shaft 14) of a rotator 21 to which the movable contact 20 is fixed, and an elongated hole 24 in the radial direction is formed in the arm 23.

The engagement pin 8 of the latch 4 has a vertical link 25.
Axes the lower end of. A long hole 26 that is long in the vertical direction is formed at an intermediate position between the upper and lower sides of the link 25, and the ratchet shaft 14 is engaged with the long hole 26. The width of the slot 26 is the same as the diameter of the ratchet shaft 14. Therefore, when the engaging pin 8 of the latch 4 rotates, the upper end of the link 25 moves up and down while the portion of the elongated hole 26 is guided by the ratchet shaft 14, and the left and right opposite to the movement of the engaging pin 8. To move.

The upper end of the link 25 has a latch shaft 3 and a ratchet shaft.
14 is provided with an engaging pin 27 parallel to the engaging pin 27
To be engaged. The width of the slot 24 is the same as the diameter of the engaging pin 27. On the front side of the body 1, a metal plate cover plate
28, and a metal back plate 29 is attached to the back side.

(Operation) Next, the operation will be described.

When the door is closed, the striker 5 on the vehicle body side is moved to the latch 4 on the door side.
Engaging the engagement groove 7 of the ratchet 4 to rotate the latch 4 forward,
Reference numeral 13 engages with the full-latch engagement step portion 12 to prevent the reverse rotation of the latch 4, and the door closing is completed.

Then, when the latch 4 rotates in the normal direction, the engaging pin 8 rotates in the normal direction, and the lower end of the link 25 whose lower end is locked by the engaging pin 8 rotates around the latch shaft 3 together with the engaging pin 8. To do.

However, a long elongated hole 26 is formed at an intermediate position in the vertical direction of the link 25, and the ratchet shaft 14 is engaged with the elongated hole 26. Therefore, the long hole 26 portion of the link 25 is a ratchet shaft. Initially, it slides up and down guided by 14, but it rotates from the middle, and the part above the long hole 26 of the link 25 moves to the side opposite to the lower part.

An engaging pin 27 parallel to the latch shaft 3 and the ratchet shaft 14 is provided at the upper end of the link 25, and the engaging pin 27 projects from the shaft 22 of the rotator 21 to which the movable contact 20 is fixed. Since it is engaged with the long hole 24 formed in the arm 23, the link 25
When the upper end of the switch moves as described above, the shaft 22 of the rotator 21 to which the movable contact 20 is fixed is rotated, and the switch mechanism 18 is turned on / off.

The door is opened and the half latch (Figs. 8 and 9) is opened, and the door is closed and the full latch is closed (Figs. 10 and 11).
Then the switch is closed and the fact is notified.

(Effect) In the type A in which the ratchet a is provided in the lower portion of the latch b shown in FIG. 1, even if the switch c is provided in the upper position of the latch b, the latch b and the switch c can be connected by the link d. It is extremely convenient because the switch c can be easily turned on and off by turning the latch b, but when the configuration for turning the switch c on and off by turning the latch b is implemented in type B, the axis e of the ratchet a interferes. Therefore, the link d cannot be attached.

However, the present invention provides a vehicle lock device in which the striker 5 fixed to the vehicle body side when the door is closed is fixed to the door side having the latch 4 that rotates forward by engaging the engagement groove 7.
A ratchet 13 that engages the full-latch engagement step portion 12 of the latch 4 at the upper position of the latch 4 to prevent the reverse rotation of the latch 4 is axially stopped by a ratchet shaft 14, and a switch mechanism is provided at the upper position of the ratchet 13. 18 is provided, an engaging pin 8 is provided at the rotating portion of the latch 4, the lower end of the link 25 in the vertical direction is axially fixed to the engaging pin 8, and the length of the link 25 in the vertical direction is substantially vertical. A hole 26 is formed, and the ratchet shaft is formed in the long hole 26.
14 and engage the upper end of the link 25 with the switch mechanism.
Since the lock device for a vehicle is connected to 18, the ratchet 13
The switch mechanism 18 can be turned on and off by the link 25 having the simplest structure without being disturbed by the ratchet shaft 14 of FIG.

The present invention also provides the switch mechanism 18 as described above.
The rotary shaft 22 is provided with an arm 23 having a long hole 24, and the upper end of the link 25 is a vehicle locking device engaged with the long hole 24. 18 can be turned on and off smoothly.

[Brief description of drawings]

Figure 1 shows a type A with a ratchet below the latch
FIG. 2 is a side view of the type B in which the ratchet is located above the latch, FIG. 3 is a vertical sectional front view of the present invention, FIG. 4 is an operation diagram of the same main portion, and FIG. Side view, FIG. 6 is an enlarged view of the switch portion, FIG. 7 is a side view of the switch, and FIG.
Figures to 11 are operation diagrams of the switch. Explanation of reference numerals 1 ... Body, 2 ... Recessed portion, 3 ... Latch shaft, 4 ... Latch, 5 ... Striker, 6 ... Striker entry groove,
7-Strike engagement groove, 8-engagement pin, 9-arc groove, 10-coil spring, 11-half latch engagement step, 12-full latch engagement step, 13-ratchet ,14
...... Ratchet shaft, 15 …… Rotating end, 16 …… Engaging pin,
17: through hole, 18: switch mechanism, 19: fixed contact, 20
...... Movable contact, 21 ...... Rotator, 22 …… Rotary axis, 23 …… Arm, 24 …… Long hole, 25 …… Link, 26 …… Long hole, 27 ……
Engagement pin, 28 ... cover plate, 29 ... back plate.

Claims (2)

[Claims] 1. A vehicle lock device in which a striker 5, which is fixed to the vehicle body when the door is closed, is fixed to the door, which has a latch 4 that engages with an engaging groove 7 and rotates normally. A ratchet 13 for engaging the full-latch engagement step portion 12 of the latch 4 and preventing the reverse rotation of the latch 4 is axially stopped by a ratchet shaft 14, and a switch mechanism 18 is provided above the ratchet 13 at the position. An engaging pin 8 is provided on the rotating portion of the latch 4, the lower end of the link 25 in the vertical direction is axially fixed to the engaging pin 8, and a vertically elongated slot 26 is formed at an intermediate position in the vertical direction of the link 25. A vehicle lock device in which the ratchet shaft 14 is engaged with the elongated hole 26, and the upper end of the link 25 is connected to the switch mechanism 18. 2. The rotary shaft 22 of the switch mechanism 18 according to claim 1, wherein an arm 23 having an elongated hole 24 is provided, and an upper end of the link 25 is engaged with the elongated hole 24. Vehicle locking device.