JPH04129282U - door lock device - Google Patents

Abstract

(57) [Summary] (with modifications) [Purpose] To obtain a door lock device that eliminates unevenness in operating force during unlocking operation and provides a good operating feeling. [Structure] A door lock device in which a striker 13 is fixed to either the door or the vehicle body, and a locking mechanism for gripping or releasing the striker is provided on the other side, the locking mechanism being pivotally mounted to the base 12. A hook member 17 that grips or releases the striker; a lock portion 18a that engages with this hook member to restrict its rotation in the striker release direction; and a release force that applies a pressing force when the hook member releases the striker. having a part 51,
A ratchet member 18 is pivotally connected to the base; and a releasing rod member that has a pressing part that comes into contact with the opening force applying part and rotates the ratchet member in the unlocking direction by this pressing part; The release rod member and the ratchet member are provided in a non-contact state at all times, with their pressing portions and opening force acting portions facing each other.

Description

[Detailed explanation of the idea]

0001

【Technical field】

The present invention relates to a lock device used for a car door, and in particular to its unlocking mechanism. related.

0002

[Prior art and its problems]

The door lock device fixes a striker to either the door or the vehicle body, On the other hand, a locking mechanism for gripping or releasing the striker is provided. This locking mechanism generally includes a hook member that grips or releases the striker, and a hook member that grips or releases the striker. It has a ratchet member that restricts rotation of the hook member. This ratchet part One end of the material is pivoted to the base of the door lock device, and the hook part is normally is biased to rotate in a direction that holds the material in the locked position. To release the lock, use the ratchet This is done by rotating the cut member against this biasing force.

0003 This rotation operation of the ratchet member in the unlocking direction is normally performed as a lock release operation. The release rod member is operated in conjunction with the operation of the operating lever (or key rotor). It is done more. The tip of this release rod member is attached to the other end of the ratchet member. This lever can be slid into the formed lever holding hole through the bushing and held in place. It is fitted so that it can come into contact with the bush. In other words, the tip of this release rod member The end portion is formed in a curved shape along the rotation locus of one end portion of the ratchet member, After this curved part slides within the bush, a bending pressing part is formed that comes into contact with it. ing. The ratchet member is unlocked by the contact of this bending and pressing part against the bushing. When the hook member is rotated in this direction, the hook member is released and the lock is released.

0004 However, the distal end of the release rod member is curved as described above, and the bushing Since it is slidably supported by the bush, there is no variation in the sliding resistance between this curved part and the bush. If there is, it is necessary to act on the release operation lever to rotate the ratchet member. This requires a lot of force, resulting in a poor operating feel. Furthermore, the same sliding Due to the resistance, the tension spring that returns this ratchet member also requires more tension than necessary. required. In addition, an electric motor is used to rotate this ratchet member for automatic lock release. When configuring a removal mechanism, a larger torque than necessary is required from this electric motor. Therefore, a large motor is used, resulting in an increase in the size of the device.

[0005]

[Purpose of invention]

The present invention was developed in view of the drawbacks of conventional door lock devices. This eliminates uneven operating force when unlocking, creating a door door with a good operating feel. The purpose is to obtain a locking device.

[0006]

[Summary of the idea]

In this invention, a striker is fixed to either the door or the vehicle body, and the striker is fixed to the other side. In a door lock device equipped with a locking mechanism that grips or releases this striker, The locking mechanism grips or releases a striker pivotally connected to the base. Hook member; engages with this hook member to restrict its rotation in the striker release direction A locking portion that is attached to the a ratchet member pivotally connected to the base, the ratchet member having an opening force acting portion; It has a pressing part that comes into contact with the opening force acting part, and this pressing part locks the ratchet member. It has a release rod member that rotates in the lock release direction, and the release rod member and the lock are connected together. The check member is always in a non-contact state, and its pressing part and opening force acting part are connected to each other. It is characterized by being provided facing the.

[0007] According to this configuration, it is possible to eliminate variations in the rotational force of the ratchet member, Compared to conventional door lock devices, the release operation lever, etc. when releasing the lock is Feeling can be improved.

[0008]

[Example of idea]

The invention will now be described with reference to the illustrated embodiments. The base 12 of the locking mechanism 11 is For example, a stripe fixed to a door and gripped or released by the locking mechanism 11 The engine 13 is fixed to the vehicle body side.

[0009] A striker entry groove 14 is formed in the base 12, and this striker entry groove 1 A hook member 17 and a ratchet member 18 are pivotally mounted on both sides of 4 by shafts 15 and 16. There is. The hook member 17 has a striker holding groove 17a and a locking portion 17b. do. On the other hand, the ratchet member 18 is a lock that engages and disengages from the lock retaining portion 17b. The locking portion 18a and the locking portion 17b are engaged with each other. In this state, the striker 13 is held in the striker holding groove 17a. this is rock state.

0010 The hook member 17 and the ratchet member 18 are attached to a tension spring 20 stretched between them. Therefore, the locking part 17b is rotationally biased in the direction of engaging with the locking part 18a. Ru. That is, the hook member 17 engages the lock portion 17b with the lock portion 18a. When the fit is deviated, the force of the tension spring 20 causes the striker to be removed from the striker holding groove 17a. Rotate in the direction to release the lock 13. The above is a normal locking mechanism.

[0011] The ratchet member 18 has a lock at its tip that is to be interlocked with the electromagnetic lock release mechanism 30. It has a roller 21, and an opening force acting part 51 above the roller 21. this The opening force acting portion 51 bends the tip of the ratchet member toward the back surface of the base 12. It is formed by A substantially rectangular through hole 56 is formed in the center of the base 12. The opening force acting portion 51 is located inside this through hole 56.

0012 A substantially box-shaped holder member 40 is attached to the base 12 in correspondence with the through hole 56. Ru. This holder member 40 has a bush guide plate 55, and this bush guide The plate 55 has a joint surface 42 to be joined to the back surface of the base 12 and a lower edge of the through hole 56. It has an engagement groove 41 that engages with. The bush guide plate 55 is inserted from the lower left in FIG. It has a sliding guide groove 44 inclined toward the upper right side. This sliding guide groove 44 This is because the inclination is along the operating direction of the release rod member 53 due to the design. If we only look at the function of guiding the bush 52 to the opening force acting part 51, this inclined type Not limited to the situation. In other words, the shape may be parallel to the joint surface 42, or the opening force acting portion 5 It may be an arcuate shape along the rotation locus 1.

[0013] The sliding guide groove 44 is fitted with a bush 5 with its flange 52a in contact with the outer surface. 2 is slidably guided toward the opening force acting portion 51 of the ratchet member 18. This book The bending pressing part 53a at the tip of the release rod member 53 is inserted into the housing 52, as shown in the figure. The release rod member 53 is operated by operating the release operation lever (or key) that is not available. When the bushing 52 is bent, the bushing 52 moves along the sliding guide groove 44 along with the bending pressing portion 53a. , presses the opening force acting part 51. As shown in FIG. 6, this opening force acting part 51 is It is formed to be elongated in the vertical direction. This is an arc-shaped rotation centered on axis 16. The bush 52, which moves linearly, follows the opening force acting part 51, which draws a moving trajectory. This is to make it possible.

[0014] The holder member 40 also protrudes from the back side of the bush guide plate 55. The housing has a storage space 45 that stores the bush 52a and the release rod member 53. It has a protection part 49. A fixing member formed at one end of the joint surface 42 to protrude upward. An ear portion 46 is formed. This fixing ear 46 has a hole through which a screw 48 is passed. A through hole 47 is formed. The holder member 40 has a structure in which the bent pressing portion 53a is fitted. The removal rod member 53 is inserted into the sliding guide groove 44, and the engagement groove 41 is inserted under the through hole 56. The through hole 47 is engaged with the end edge and the joint surface 42 is joined to the back surface of the base 12. A screw 48 is inserted into the through hole 47, and a screw is formed in the base 12 in correspondence with the through hole 47. It is attached to the base 12 by screwing the screw 48 into the hole 60. 5 in the diagram 0 is an open portion for inserting the bush 52 into the sliding guide groove 44.

[0015] A cam-integrated worm wheel 34 is rotatably attached to the base 12 by a shaft 33. Supported. This cam-integrated worm wheel 34 has a ratchet member 1 on one side. A cam surface 34a (Fig. 2) that engages with the roller 21 of No. 8 is formed, and a rotation center hole is formed on the other surface. A circular arc groove 34b centered at 34c is formed, and a worm gear tooth surface 34d is formed on the periphery. It is formed.

[0016] The cam surface 34a is a cam having a shape that gradually increases the distance from the shaft 33. When the integrated worm wheel 34 rotates counterclockwise in FIG. Pushing the roller 21 of the ratchet member 18, the lock part 18a locks the locking part 17b. Rotate it to the unlocked position to release the engagement. This cam integrated worm foil 34 is always returned to the initial position by the torsion spring 38 provided on the shaft 33. It is biased to rotate.

[0017] An electromagnetic wire is connected to the base 12 via the motor housing 19 to the extension board 12a. The motor actuator 35 of the lock release mechanism 30 is fixed, and its output shaft The worm gear 36 fixed to the worm wheel 35a is connected to the tooth surface 34 of the cam-integrated worm wheel 34. It meshes with d. This worm gear 36 and the gear of the cam-integrated worm wheel 34 The worm wheel 34 returns to its initial position by the torsion spring 38. When doing so, the worm gear 36 can be rotated from the worm wheel 34 side. is set to .

[0018] Therefore, the present door lock device having the above structure has the striker holding groove 1 of the hook member 17. The striker 13 enters into the inside of the ratchet member 18, and the locking part 17b engages the ratchet member 18. In the locked state engaged with the lock part 18a, the release operation lever (or key -), the bending pressing portion 53a of the release rod member 53 is pressed against the bush 52. along the sliding guide groove 44 in a direction that presses the opening force acting part 51. vinegar Then, the opening force applying portion 51 is pressed by the bush 52, and the ratchet member 1 8 is rotated in a direction away from the hook member 17 against the tension spring 20. And b When the locking portion 18a and the locking portion 17b are disengaged, the force of the tension spring 20 The hook member 17 rotates clockwise in FIG. 1 and is held in the striker holding groove 17a. Release the striker 13 that was in use. Therefore, the lock is released and the door opens.

[0019] The distal end of the release rod member 53 is designed to latch like a conventional door lock device. It is not connected to the tip of the ratchet member in a slidable manner. The bending pressing portion 53a, which is free with respect to the contact member 18, slides along the sliding guide groove 44. This ratchet member 18 is moved by contacting and pressing the opening force applying portion 51 Since the structure rotates the release rod member 53, the force required to operate the release rod member 53 is always distributed. constant. This ensures that the operating feeling of the release control lever is always stable. . Further, the ratchet member 18 has a structure independent from the release rod member 53, Since it is pressed by the bush 52 and rotates, it is not a solution in conventional door lock devices. Due to the sliding resistance between the curved part of the removal rod member and the bush provided on the ratchet member. This ratchet member returns due to the load applied to the rotational movement of the ratchet member. If the tension spring for the This avoids the inconvenience of requiring a higher torque.

[0020] Further, the release rod member 53 and the bush 52 are connected to the protective portion 4 of the holder member 40. 9, so in case of theft, for example, the release operation lever (or key) It is possible to reliably prevent the inconvenience of being operated in the release direction regardless of the operation.

[0021] On the other hand, when unlocking by electric operation, the motor actuator 35 is driven. and the cam integrated worm via the output shaft 35a, worm gear 36, and tooth surface 34d. The frame wheel 34 is rotated counterclockwise. Then, the cam surface 34a will eventually latch. The ratchet member 18 comes into contact with the roller 21 and begins to push it, causing the ratchet member 18 to It is rotated in a direction away from the hook member 17. Cam integrated worm wheel 34 is constant When the lock part 18a and the lock retaining part 17b are disengaged by rotating more than an angle, the pull The hook member 17 is rotated clockwise by the force of the tension spring 20, and the striker holding groove is rotated. The striker 13 held at 17a is released. Therefore, the lock is released and the drive is unlocked. A opens. The above lock release operation is normally performed using a push button switch. This is done by energizing the actuator 35. When this energization ends, the The cam-integrated worm wheel 34 is returned to its initial position by the force of the suspension spring 38. The ratchet member 18 returns to the locked position. In this state, it is released When the door is closed, the striker 13 that has entered from the striker entry groove 14 enters the door. It enters the striker holding groove 17a of the lock member 17. Then the striker 13 is pressed. The hook member 17 rotates around the shaft 15, and the back surface of the locking portion 17b presses the ratchet member 18, rotates it to the unlocked position, and then When the triker 13 enters, the lock part 18a and the lock retaining part 17b engage and the Return to initial lock state.

[0022]

[Effect of the idea]

As described above, the door lock device of the present invention has a release rod member and a ratchet member. are always in a non-contact state, and the release rod member connects the pressing part to the ratchet member. The structure is such that the lock is pressed against the lock and rotated in the unlocking direction, so conventionally This tended to occur in the operating force when operating the door member and the rotational force of the ratchet member. Eliminates variation in force, allowing for easy operation when releasing the lock using a release control lever, etc. It can improve the feeling.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a door lock device according to the present invention.

FIG. 2 is a sectional view of the door lock device of FIG. 1 when assembled.

FIG. 3 is a perspective view of the holder member viewed from the front side.

FIG. 4 is a perspective view of the holder member viewed from the back side.

FIG. 5 is a perspective view of the holder member with a protective portion partially cut away.

FIG. 6 is a perspective view showing an engagement structure of a ratchet member, a bush, and a release rod member.

[Explanation of symbols]

11 Lock mechanism 12 base 13 Striker 14 Striker entry groove 15 axis 16 axes 17 Hook member 18 Ratchet member 20 tension spring 21 Roller 30 Electromagnetic lock release mechanism 33 axis 34 Cam integrated worm wheel 35 Motor actuator 36 Worm gear 37 Rotation center hole 38 Torsion spring 40 Holder member 41 Engagement groove 42 Joint surface 44 Sliding guide groove 45 Storage space 46 Fixing ears 47 Through hole 48 screw 49 Protection Department 51 Bending pressing part 52 Bush 53 Release rod member 55 Bush guide plate 60 screw hole

Claims (2)

[Scope of utility model registration request] Claim 1: A door lock device in which a striker is fixed to either the door or the vehicle body, and a locking mechanism for gripping or releasing the striker is provided on the other side, the locking mechanism being pivotally mounted to a base. , a hook member that grips or releases the striker; a locking portion that engages with the hook member to restrict its rotation in the striker release direction; and a release force that applies a pressing force when the hook member releases the striker. a ratchet member pivotally connected to the base, and a release rod member having a pressing portion that comes into contact with the opening force applying portion, and the pressing portion rotates the ratchet member in the unlocking direction. 1. A door lock device, characterized in that the releasing rod member and the ratchet member are provided in a non-contact state at all times, with their pressing portions and opening force acting portions facing each other. 2. The method according to claim 1, further comprising a holder member removably mounted on the base and having a sliding guide groove for guiding the pressing portion toward the opening force applying portion, the pressing portion comprising:
A door lock device that is inserted into the sliding guide groove through a bush, and the bush directly contacts the opening force acting part.