JPH0296076A - Door lock device - Google Patents

Abstract

PURPOSE:To miniaturize a mechanism and lighten the weight and reduce the cost by inserting a resin bush retained with a pin set on a sub base, into a side section release groove set at one end of a locking link. CONSTITUTION:A resin bush 31 retained with a pin 30 set on a sub base 17 is provided with the bearing section 48 of a dimension slightly smaller than that of the groove 47 of a locking link 32, and a collar section 49 with a diameter larger than that of the bearing section. Besides, a shell section 51 for positioning of the sub base 17, and an elastic collar section 50 for preventing backlash from being generated in the direction of the plate thickness of the locking link 32 are arranged. After that, into the side section release groove 47 set at one end of the locking link 32, the bush 31 is inserted. Then, the locking link 32 is guided by the groove, and its track is always kept constant.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a door lock device that enables smooth operation.

(Conventional technology) In a door lock device, after the door is closed to engage the launch and the pole, an electric actuator or locking button is used to set the lift lever that is linked to the pole into a non-rotating state. A mechanism is in place. This mechanism ensures the safety of the occupants by not opening the door even if the occupant pulls the inside handle while the vehicle is in motion.

The non-rotating state of the lift lever is achieved by moving the release lever of the outer lever, which is pivotally supported by the pawl pin, to a predetermined position using a locking link.

(Problems to be Solved by the Invention) Since the movement of the locking link is extremely important for obtaining door lock and door unlock states, this locking link is guided by a pin or the like. In particular, the strong contact between the pin and the locking link caused by the impact generated when the door was opened and closed caused abnormal noise.

According to the conventional method, four parts are required, including a pin, a resin washer, a bushing, and a metal washer.Furthermore, caulking work is required in two places, which makes assembly work difficult, and is heavy. The cost was also high.

Therefore, it is an object of the present invention to solve the above-mentioned problems.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention basically provides a locking link having a side opening groove at one end thereof and a pin installed in a sub-base. A means is adopted for inserting the held resin bushing into the groove.

(Function) Since the bushing is inserted into the groove from the side opening of the groove and the locking link is guided by this groove, the locus of movement of the locking link can be kept constant at all times.

(Example) A door lock body 1 and an actuator 2 for electrically locking and unlocking are connected via a plate.

A latch 5 is rotatably attached to a latch pin 6 in a space formed by a body 3 and a base 4 of the door lock body 1, and a launch spring 7 applies a clockwise rotational force as seen in FIG. Furthermore, the pawl 8 is rotatably pivotally connected to the pawl pin 9, and as seen in FIG. It is arranged so that it can become uncoordinated if the

The pawl 8 can be integrally interlocked with the lift lever 12 by a pin 13 fixed to the lift lever 12, and the lift lever 12 is coaxial with the pawl bin 9 and receives rotational force from a spring 14 as shown in FIG. It is arranged so that it can rotate relative to the outer lever 15 provided and can be interlocked with the outer lever 15.

The above-mentioned pole pin 9 is equipped with a collar portion 16, one end of which passes through the rotation shaft hole of the above-mentioned pole 8, and the other end passes through the hole 18 of the sub-base 17, and the lift lever 1
2 and the outer lever 15 are fixed to the sub-base 17 via a collar 19 and a washer 20.

A resin bushing 21 and a washer 22 are provided on the rotating shaft portion of the lift lever 12 of the collar 19 to prevent metal contact with the lift lever 12. A release button 25 that can engage or disengage with an end surface 23 formed on the lift lever 12 and is slidably supported by a guide support section 24 provided on the lift lever 15 is rotatable by a pin 26. A locking lever 28 and a bush 2 are pivotally connected to each other and are kept in moderation by a turnover spring 27.
The holding guide portion 33 of the release button 25 of the locking link 32 is slidably supported by the resin bush 31 inserted into the pin 30 fixed to the sub-base 17, and the lock position is adjusted to the locked position. Alternatively, it is held in the unlocked position (see FIGS. 4 and 7).

The holding guide portion 33 of the release button 25 of the locking link 32 is provided with an arc-shaped groove 34 centered on the axis of the pole bin in the unlocked position. enable movement.

The bushing 29 connecting the locking lever 28 and the locking link 32 will be described above with reference to FIGS. 5 and 6.

The locking lever 28 is provided with a hole 35 into which a foot portion 36 having a function of preventing the bushing 29 from being removed is inserted. The foot portion 36 is provided with a bearing portion 37 having the same diameter as the hole 35 and a pull-out stop portion 38 having a larger diameter than the bearing portion 37, which is elastically deflected into the hole 35 of the locking lever 28. It is inserted while In order to enable elastic deformation of the foot portion 36, a space 40 is provided between the foot portion 36 and the body portion 39. The body portion 39 includes a shaft portion 41 that serves as the rotation axis of the hole 35 of the locking lever 28, and a shaft portion 42 that is supported by the locking link 32. However, since the body portion 39 includes the hollow space 40, it has a completely cylindrical shape. I can't get it.

Therefore, the locking lever 28 and the locking link 32
In order to arrange the body part 39 in the load transmission direction with respect to the body part 39, positioning is performed by the locking link 32 and the shaft part 42. The locking link 32 is provided with a positioning part 44 corresponding to the width of the shaft part 42 which is set to have a diameter larger than that of the hole 35 of the locking lever 2B and the shaft part 4N. By inserting the shaft portion 42, the body portion 39 is arranged in the aforementioned load transmission direction. Reference numeral 45 denotes a head, which is provided with elastic fins 46 at both ends, and prevents rattling between the long winding leper 28 and the locking link 32.

Next, with reference to FIG. 7, the resin bushing 31 that slidably supports the locking link 32 on the base 17 will be described in detail.

A support part 48 set to a size slightly smaller than a47 provided on the locking link 32, a collar part 49 having an outer diameter larger than the groove 47, and a collar part 49 that cooperate with the plate thickness of the locking link 32. It is provided with an elastic collar portion 50 that prevents play in the direction, and a body portion 51 that positions the sub-base 17, and the distance between the collar portion 49 and the elastic collar portion 5.0 is equal to the plate thickness of the locking link 32. It is set narrower than the dimensions.

The long link 32 also has a groove 5 into which a pin 53 fixed to the output lever 52 of the actuator 2 is inserted.
It is equipped with 4.

Further, a bushing is arranged between the pin 53 and the groove 54 to reduce operating resistance or operating noise.

A long groove 56 is provided in the guide support portion 24 of the outer lever 15 to reduce the contact area with the release button 25, reduce operating resistance when moving to the lock position and unlock position, and prevent sand and debris from forming. If the release button 25 is operated in a situation where the release button 25 has adhered to it, the sand, chips, etc. that have been scraped off will form a groove, increasing the operating resistance due to sand, chips, etc. on the sliding part of the release button 25. It is possible to prevent this and obtain stable operating resistance over a long period of time. Therefore, the output of the actuator 2 can be made as small as possible, and the actuator can be made smaller and lighter.

The end portion 57 formed on the outer lever 15 is connected to the pin 5.
An inner lever 60 is rotatably mounted on the inner lever 8 and connected to an inside handle (not shown) via a snap 59.
It is arranged so that it can be fitted with the end portion 61 of.

Reference numeral 62 denotes a stopper made of an elastic body such as rubber and fixed to the sub-base 17, and cooperates with the stoppers 63 and 64 provided on the Ronkindareper 28 described above to restrict the rotational operation of the Ronkindareper 28.

Reference numeral 65 is a snap, which transmits the operation of the locking knob without the motherboard to the locking lever 28.

The operation will be explained using the above configuration.

First, the door opening action will be described.

From the closed state of the door in FIG. 1, the inner lever 60 is rotated clockwise around the pin 58 as seen in FIG. introduce.

As a result, the outer lever 15 rotates counterclockwise around the pawl pin 9 as seen in FIG. When engaged, the lift lever 12 is rotated counterclockwise.

As a result, the lift lever 12 and the pawl 8 connected via the pin 13 can be seen in FIG.
Since the claw 11 rotates clockwise around
The latch 5 is disengaged from the pawl 10, and the latch 6 is rotated clockwise around the latch pin 6 by the launch spring 7, opening the door.

In addition, the release button 25 has a locking link 32.
Since the arc-shaped groove 34 centered around the pawl pin 9 moves, no slipping occurs between the release button 25 and the end surface 23 of the lift lever 12, and the operating force required for the above-mentioned door opening action is reduced. Furthermore, since wear and the like do not occur, a resin material can be selected for the release button 25, and an arbitrary shape can be obtained.

Next, the operation of changing from the unlocked state to the locked state will be described. When the locking lever 28 is rotated clockwise around the pin 26 as seen in FIG. 1 using a locking knob (not shown), as shown in FIG.
Since the release button 25 is lifted upward as seen in FIG. 9 while being guided by the button 31, the holding guide section 33 of the release button 25 of the locking link 32 allows the release button 25 to move upward along the guide support section 24 of the outer lever 15. , the release button 25 disengages from the end surface 23 of the lift lever 12, and the outer lever 1
5, or the door does not open even if the inner lever 60 is operated.

In addition, the release button 25 has a locking link 32.
It only moves within the arc-shaped groove 34 and has no effect on other parts.

Further, when the locking link 32 is moved to the locked position or the unlocked position, the output lever 52 of the actuator 2 is simultaneously actuated by the groove 54 provided in the locking link 32 via the pin 53.

Next, the action of changing from the unlocked state to the locked state by the actuator 2 will be described.

When the power is applied in the locking direction by a switch (not shown) from the unlocked state, the output lever 5 of the actuator 2
2 is rotated in the clockwise direction as seen in FIG.
2 is lifted to one side as seen in Figure 9.

The following effects are the same as with Ronkincrib.

Further, the movement of the locking lever 32 is transmitted to the locking lever 28 via the bush 29, and moves a not-illustrated Ronkin rib to the lock position.

(Effects) According to the present invention, since one end of the groove of the locking link is open, the collar portion and the elastic collar portion can be integrated, and the body portion can also be integrated. It is possible to reduce the number of parts, weight, and cost.

Furthermore, the dimensional relationship in the thickness direction of the locking link plate can be determined with a single component, which suppresses variations in sliding resistance.In addition, the output of the electrically actuated actuator can be made as small as possible, and the motor It is possible to reduce size, weight, and cost.

[Brief explanation of the drawing]

Fig. 1 is a side view showing each link when the door is in a lockable state, Fig. 2 is a plan view showing when the release lever and pawl are engaged, Fig. 3 is a sectional view around the pawl pin, and Fig. 4 is a side view showing each link when the door is in a lockable state.
The front view of the state shown in the figure, Figure 5 is a partial cross-sectional view of the area around the bushing, Figure 6 is a detailed perspective view of the bushing, Figure 7 is a sectional view of the pin part, and Figure 8 is a side view when the door is open. , FIG. 9 is a front view of the state shown in FIG. 8. In the diagram: 2-------Actuator, 5---
---Latch, 6-----Lasotipine, 8-----Pole, 9-----Pole pin, 12----Lift lever, 15--------Auta lever, 17--
------ Sub base, 19 ----- One color, 21
--------Bushing, 24・--------1 Guide support part, 25 Release button, 28-------1 Ronkinderleper 29-1----Bushing, 31-1~---
-Butshu, 320 Tsuking Link, 33------
- Holding guide part, 34 arcuate groove, 45 ---- One head, 4
6--------Fin part, 49--Brim part, 60--
-----Inner lever 63, 64------
Stopper. Agent Patent Attorney Hideaki Kuwahara Figure 3

Claims (1)

[Claims] a latch pivotally supported by a latch pin and receiving a striker;
A pole that is pivotally supported on a pawl pin so as to be freely engageable with the latch, a lift lever that is arranged coaxially with the pawl pin and interlocks with the pawl, and a release bush that is pivotally supported on the pawl pin and that is freely engageable with the lift lever. an outer lever for holding the release bushing, and a locking link for guiding the release bush to an engaging or disengaging position with the lift lever, the locking link having a side opening groove at one end thereof and being planted on the sub-base. A door lock device characterized in that a resin bush held by a pin is inserted into the groove.