JPH02221574A - Switch mechanism for vehicle lock device - Google Patents

Abstract

PURPOSE:To attain on-off operation of a switch by turning a latch, even in constitution providing a ratchet in the upper of the latch, by connecting a switch mechanism, provided in the upper of the ratchet, to the latch by a link. CONSTITUTION:In an upper position of a latch 4 engaged with a striker 5, a ratchet 13 for preventing the latch 4 from reversing is rotatably stopped, further on the upper of the ratchet 13, a switch mechanism is provided. Next the latch 4 provides in its turn part an engaging pin 8 stopping a lower end of a link 25. Successively the link 25 provides in its vertically intermediate position a long hole 26 rotatably stopping an axis 14 of the ratchet 13, thereafter the link 25 is connected in its upper end to the switch mechanism. Thus even in constitution positioning the ratchet 13 in the upper of the latch 4, its turning can be transmitted to the switch mechanism with no interference with the axis 14 of the ratchet 13.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a switch mechanism for a vehicle locking device.

(Prior Art) Conventionally, in a vehicle locking device fixed to a door side having a latch that engages with a striker fixed to a vehicle body,
A ratchet for preventing the latch from reversing is aligned with a shaft at a lower position of the latch, a switch mechanism is provided at an upper position of the latch, and an engagement pin is provided at a rotating portion of the latch.

A switch mechanism for a vehicle locking device is known in which a lower end of a link is pivotally fixed to the engagement pin, and a second end of the link is connected to the switch mechanism.

In other words, there are two types of vehicle o-/rover devices: type A (see Fig. 1) in which ratchet a is located below latch b;
There are two types: type B (Fig. 2) in which a is located above latch b, and type A is the only type that has latch b and a switch C located above it that is linked by the rotation of latch b. Ta.

(Problem to be Solved by the Invention) Type A shown in FIG. 1, in which ratchet a is provided at the bottom of latch b, links latch b and switch C even if switch C is provided at the top position of latch b. It is very convenient that switch C can be turned off easily by turning latch b because it can be contacted with d.
If type B is used to turn on and off the link d, the shaft e of the ratchet a gets in the way and the link d cannot be attached.

However, even in type B, link d can be attached as described below, so switch C can be turned on and off by rotating latch b. Therefore, it can be made into a lock with a switch that has other features of the lock device of the B type specification.

(Means for Solving the Problems) Accordingly, the present invention provides a vehicle locking device fixed to a door side having a latch that engages with a striker fixed to a vehicle body, in which a reversal of the latch is provided at a position above the latch. A prevention ratchet is fixed on a shaft, a switch mechanism is provided above the ratchet, a retaining pin is provided on the rotating part of the latch, the lower end of the link is fixed on the engagement pin, and the A lock for a vehicle, wherein a long hole at a lower middle position of the link is fixed to the shaft of the ratchet so that the upper end of the link moves in a direction opposite to the lower end, and one end of the link is connected to the switch mechanism. This is used as a switch mechanism for the device.

(Example) An embodiment of the present invention will be described with reference to the drawings.

1 is the synthetic resin body of the locking device that is attached to the door, and on the front side of the body is a metal plate cover plate) 2B
However, a metal bar plate n is attached to the back side.

A four part 2 is formed on the front side of the body l, and a latch 4 is pivotally attached to a lower position of the four part 2 by a shaft 3. 5 is a striker attached to the vehicle body side, 6 is an entry groove formed in the body l into which the striker 5 enters, and 7 is a latch 4.
When the striker 5 and the engagement groove 7 are engaged with each other in the engagement groove formed on the outer circumferential surface of the tee 204, the tee 2,4 rotates.

An engagement pin 8 is protruded from the rotating portion of the back surface of the latch 4, and the engagement pin 8 engages with an arc-shaped #I9 centered on the shaft 3 formed on the body l.

A straight groove is formed at one end of the arcuate groove 9, and a coil spring 10 is fitted into the straight groove.Since the coil spring 10 always tends to expand, the retaining pin 8 is pushed to release the latch 4.
is rotated to the door opening position where the striker 5 engages.

The upper part of the outer circumference of the latch 4 has a half engagement step l! A full engagement stepped portion l is formed, and the ratchet 13 is engaged with this. Ratchet 13 is the axis! 4 is pivotally attached to the upper part of the latch 4. A pin 16 is provided at the end 15 of the ratchet 13 and projects from the back side, and the pin 16 projects from the through hole 17 formed in the body l. This pin 16
is lowered by the door opening operation of the open lever, the engagement between the ratchet 13 and the full engagement stage member is disengaged, and the latch 4 becomes free, allowing the door to be opened.

A ratchet 13 is also provided in the recess 2, and a door opening/closing detection switch is provided above the ratchet 13.

The door opening/closing detection switch 18 has a fixed contact 19 and a movable contact π, and a right-angled arm n is fixed to the axis 22 (parallel to the axes 3 and 14) of a rotator 21 to which the movable contact is fixed. Elongated holes 24 in the radial direction are formed in the holes 24 in the radial direction.

The lower end of the link b is pivotally fixed to the engagement pin 8 of the latch 4. A long hole 26 extending downward L is located between the upper and lower parts of the link δ.
is formed, and the shaft 14 is engaged with the long hole. The width of the slotted hole is the same as the diameter of the shaft 14. Therefore, when the engagement pin 8 of the latch 4 rotates, the upper end of the link b moves proportionally to the opposite side.

At the upper end of the link b, an engaging pin n parallel to the axis 3.14 is provided, and the engaging pin n is engaged in the elongated hole 24. The width of the long hole 24 is the same as the diameter of the engagement pin n. Therefore,
When the upper end of the link δ moves proportionally to the opposite side, the shaft n of the rotator 21 to which the movable contact J is fixed is rotated proportionally, thereby accurately turning on and off.

(effect) Next, we will discuss the effect.

In the present invention, when the door is closed, the striker 5 on the vehicle body side engages with the engagement groove 7 of the latch 4 on the door side to rotate the latch 4, and the ratchet 13 engages with the full engagement step. , latch 4
This prevents the reverse rotation and completes the door closing.

When the latch 4 rotates, the engaging pin 8 thereof also rotates, and the lower end of the link δ, whose lower end is pivotally fixed to the locking pin 8, rotates together with the locking pin 8.

However, a vertically long elongated hole is formed at an intermediate position between the upper and lower sides of the link δ, and the shaft A engages with the elongated hole.
The width of the long hole 3 is the same as the diameter of the shaft 14. Therefore, the link δ simply slides up and down, and when the engagement pin 8 rotates, the upper end of the link B moves in exact proportion to the opposite side.

At the upper end of the link δ, which operates in this way, there is a shaft 3.14
An engagement pin n is provided parallel to the length of the arm 23, and the engagement pin n is engaged with the elongated hole 24 of the arm 23 that protrudes from the rotor n of the rotor 21 to which the movable contact is fixed. Since the width of the hole 24 is the same as the diameter of the engagement pin n, when the upper end of the link δ moves proportionally to the opposite side, the axis η of the rotator 21, which fixes the movable contact, is rotated proportionally. It turns them on and off precisely.

Opening the door and half-locking (FIGS. 8 and 9) opens one circuit, and closing the door and fully locking (FIGS. 10 and 11) closes the circuit and notifies you of this fact.

(Effects) Type A, which has ratchet a at the bottom of latch b shown in Figure 1, can connect latch b and switch C with link d even if switch C is installed at the top of latch b. Switch C can be easily turned on and off by rotating latch b, which is extremely convenient.
If type B is used to turn on and off the link d, the shaft e of the ratchet a gets in the way and the link d cannot be attached.

However, the present invention provides a vehicle lock device that is fixed to the door side and has a latch that engages with a striker that is fixed to the vehicle body. A switch mechanism is provided at a position further above the ratchet, an engagement pin is provided in the rotating portion of the latch, the lower end of the link is pivotally fixed to the engagement pin, and the length of the link is fixed at the upper and lower intermediate positions. The hole is fixed to the shaft of the ratchet so that the upper end of the link moves in a direction opposite to the lower end, and the upper end of the link is connected to the switch mechanism to serve as a switch mechanism for a vehicle locking device. Therefore, although it is the B type lock, the switch can be operated with the simplest configuration without being hindered by the ratchet 13 and the vehicle 14.

[Brief explanation of the drawing]

Figure 1 shows type A where the ratchet is located below the latch.
Fig. 2 is a side view of Type B in which the ratchet is located above the latch, Fig. 3 is a vertical cross-sectional front view of the present invention, Fig. 4 is an operational view of the main parts, and Fig. 5 is a longitudinal cross-section of the same. Side view, Figure 6 is an enlarged view of the switch part, Figure 7 is a side view of the switch, Figure 8 is a side view of the switch.
Figures 1 to 11 are operation diagrams of the switch. Explanation of symbols 1...body, 2...recess, 3...shaft, 4...
Latch, 5... Striker, 6... Striker entry groove, 7... Striker engagement groove, 8... Engagement pin, 9... Arcuate groove, IO... Coil spring, 11.・・・
Half engagement step. Otori 2...Full holding stage part, 13...Ratchet), 14
...Axis, 15...Rotating end, 16...Bin, 17.
...Through hole, 18...Door opening/closing detection switch, 19...
Fixed contacts, movable contacts. 21... Rotator, 22... Axis, 23... Arm,
24...Long hole, δ...Link, 昂...Long hole, 2'
7... Engagement bottle, redundant... cover plate, 6...
back plate. Figure Figure 4 Figure 5

Claims (1)

[Claims] In a vehicle locking device fixed to the door side having a latch that engages with a striker fixed to the vehicle body, a ratchet for preventing the latch from reversing is fixed by a shaft at a position above the latch, and the ratchet Further, a switch mechanism is provided at an upper position, an engagement pin is provided on the rotating portion of the latch, the lower end of the link is fixed to the engagement pin, and a long hole at an intermediate position between the upper and lower sides of the link is connected to the shaft of the ratchet. A switch mechanism for a vehicle locking device, wherein the link is pivoted so that the upper end of the link moves in a direction opposite to the lower end, and the upper end of the link is connected to the switch mechanism.