CN213477942U

CN213477942U - Actuator assembly for a vehicle lock

Info

Publication number: CN213477942U
Application number: CN202020048847.8U
Authority: CN
Inventors: M·斯科科
Original assignee: Cebi Italy SpA
Current assignee: Cebi Italy SpA
Priority date: 2019-01-11
Filing date: 2020-01-10
Publication date: 2021-06-18
Anticipated expiration: 2030-01-10
Also published as: DE202020100098U1; BR202019028270U2

Abstract

An actuator assembly (100) for a vehicle lock, comprising: a cartridge (S); a pulley (5) actuating a Bowden cable adapted to be connected to a part of the vehicle lock; and a gear train (T) connected to the motor (4) and the pulley (5) such that the pulley (5) rotates when the motor is actuated.

Description

Actuator assembly for a vehicle lock

Technical Field

The utility model relates to an actuator subassembly for lock.

Background

As is known, vehicle locks typically include a catch that engages a striker. The catch is locked in the closed position by the pawl. The pawl is typically moved by an actuator assembly in the manner of a bowden cable.

The actuator assembly may also move other parts of the lock, such as a catch or a safety lever.

Various types of actuator assemblies are known on the market. However, the prior art actuator assemblies suffer from some disadvantages due to their complexity, bulkiness, noise and unreliability.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to eliminate the drawbacks of the prior art by disclosing an actuator assembly that is reliable, small, noiseless, cheap and easy to manufacture.

These objects are achieved by the technical solution of the present invention. Advantageous embodiments emerge from the further claims.

The utility model discloses an actuator subassembly for lock includes:

a case, a motor, a pulley that actuates a bowden cable adapted to be connected to a portion of a vehicle lock, and a gear train connected to the motor and the pulley such that the pulley rotates when the motor is actuated.

The case comprises a base, a cover and a cap; the motor and the gear train are mounted on the base and covered by the cover; the pulley is mounted on the cover and covered by the cap.

The gear train includes a first gear, a second gear, and a third gear.

The first gear wheel is a dual gear wheel comprising a first crown and a second crown, the second crown having a diameter smaller than the diameter of the first crown; the second gear is a dual gear comprising a third crown and a fourth crown, the fourth crown having a larger diameter than the third crown; the third gear has a first central shank with a splined axial channel for prismatic connection with a second central shank of the pulley.

The motor has a drive shaft connected to a worm that engages the first crown of the first gear.

The actuator assembly further comprises a detection device arranged in said cartridge for detecting the position of said third gear.

The detection means comprise a microswitch actuated by a lever.

The third gear has a fifth crown extending for one half-cycle and lobes projecting radially outward in opposite directions relative to the fifth crown;

the lever has a fork shape and is hinged to the box;

and the lever includes a first arm directed toward the lobe of the third gear and a second arm directed toward the microswitch.

The actuator assembly further includes an electrical connector connected to the motor; the electrical connector has a port that projects outwardly from the box to receive a cable for powering the motor.

The base comprises first to fourth seats for respectively accommodating the motor, the first gear, the second gear and the third gear; the first gear being rotatably mounted in the second housing by a shaft, the second gear being rotatably mounted in the third housing by a shaft; and the third gear is rotatably mounted in a fourth seat by means of a set of rotary supports.

The actuator assembly further includes: a first plate mounted in a fifth seat of the cartridge, behind the motor, so as to be in contact with a rear end of the drive shaft protruding from behind the motor, and a second plate mounted in a sixth seat of the cartridge, in front of the motor, so as to be in contact with a front end of the drive shaft.

The actuator assembly further includes a plurality of clips that engage a flange that projects outwardly from the base of the cassette; the clip is adapted to engage with a seat of a vehicle body to secure the cassette to the vehicle body.

Drawings

Additional features of the invention will become apparent from the following detailed description, which refers to an illustrative and non-limiting embodiment only, as illustrated in the accompanying drawings, in which:

fig. 1 is an exploded perspective view of an actuator assembly of the present invention.

Fig. 2 is a perspective view of the actuator assembly of fig. 1 in an assembled state.

Fig. 3 is a top view of the actuator assembly of fig. 2.

Fig. 4 is a perspective view of fig. 2 with the cover of the cassette of the actuator assembly omitted.

Fig. 5 is a top view of the actuator assembly of fig. 4.

Detailed Description

Referring to the drawings, an actuator assembly in accordance with the present invention is disclosed and is generally indicated by reference numeral 100.

The actuator assembly 100 includes a cartridge S having a base 7, a cover 8 and a cap 86.

The box S houses an electric motor 4 and a gear train T which actuates a pulley 5 arranged outside the cover 8. The cap 86 is mounted on the cover 8 so as to cover the pulley 5.

Pulley 5 actuates a bowden cable (not shown in the figures) which is adapted to be connected to a part of the vehicle lock.

The gear train T comprises a first gear 1, a second gear 2 and a third gear 3.

The first gear wheel 1 is a double gear wheel comprising a first crown 10 and a second crown 11 having a smaller diameter than the first crown. The first crown 10 has helical teeth.

The second gear wheel 2 is a double gear wheel comprising a third crown 20 and a fourth crown 21 having a larger diameter than the third crown.

The third gear wheel 3 has a fifth crown 30 extending for about one half of the circumference and lobes 31 projecting radially outwards in the opposite direction with respect to the fifth crown 30.

The third gear wheel 3 has a first central shank 32 with a splined axial channel 33 for prismatic connection with a second central shank 53 of the pulley. In view of the above, the rotation of the third gear 3 determines the rotation of the pulley 5 and therefore the actuation of the bowden cable connected to the pulley 5.

The electric motor 4 has a drive shaft 40 connected to a worm 41 which engages the first crown 10 of the first gear. The second crown 11 of the first gear is engaged with the third crown 20 of the second gear. The fourth crown 21 of the second gear is engaged with the fifth crown 30 of the third gear. In view of the above, the actuation of the motor 4 determines the rotation of the third gear 3 and, therefore, of the pulley 5 of the bowden cable connected to a part of the lock.

A detecting device is provided in the cartridge S to detect the position of the third gear 3. The detection means comprise a microswitch W actuated by the lever 6.

The lever 6 is shaped like a fork and is hinged to the box. The lever comprises a first arm 61 directed towards the lobe 31 of the third gear and a second arm 62 directed towards the microswitch W.

Referring to fig. 5, the spring 63 holds the lever 6 in a position where the second arm 62 of the lever presses the microswitch W. When the third gear 3 rotates in the clockwise direction, the lobe 31 of the third gear pushes the first arm 61 of the lever, causing the lever to rotate about the hinge axis. Thus, the second arm 62 of the lever is moved away from the microswitch W, which changes its state, indicating the movement of the third gear 3 and therefore of the pulley 5 actuating the bowden cable connected to a part of the lock.

The actuator assembly 100 includes an electrical connector 9 connected to the motor 4. The electrical connector 9 has a port 90 projecting outwardly from the box S to receive a cable for powering the motor 4.

The base 7 includes first to

fourth seats

70, 71, 72, 73 that accommodate the motor 4, the first gear 1, the second gear 2, and the third gear 3, respectively. The first gear 1 is rotatably mounted in the second seat 71 by means of a shaft 15, and the second gear 2 is rotatably mounted in the third seat 72 by means of a shaft 25. The third gear wheel 3 is rotatably mounted in a fourth seat 73 by means of a set of rotary supports 35 or bearings or equivalent means.

The first plate P1 is mounted in the fifth seat 36 of the cassette, behind the motor 4, so as to be in contact with the rear end 46 of the drive shaft projecting from behind the motor.

The second plate P2 is mounted in the sixth seat 37 of the cartridge, in front of the motor 4, so as to be in contact with the front end 47 of the drive shaft.

The plates P1, P2 release the axial thrust to which the motor 4 is subjected, which would otherwise be released to the brass of the motor, causing damage.

The actuator assembly 100 includes a plurality of clips 77 that engage flanges 78 that project outwardly from the base 7 of the cassette. The clips 77 are adapted to engage with seats of the vehicle body, thereby securing the cartridge S to the vehicle body.

The lid 8 is fixed to the base 7 of the box by means of screws 80, the screws 80 being inserted in holes in a flange 81, the flange 81 projecting outwards from the lid and being screwed into a seat 79 of the base.

The cover 8 has two

annular supports

82, 83 which rotatably support the

shafts

15, 25 of the first and second gear wheels.

The cover 8 has a seventh seat 84 to house the pulley 5 and a through hole 85 for inserting the second central shank 53 of the pulley.

The cap 86 covers the pulley 5 and has an opening 87, the opening 87 being adapted for insertion of a bowden cable connected to the locking portion.

Many equivalent variations and modifications may be made to the present embodiments of the invention, which variations and modifications are within the ability of those skilled in the art, while still falling within the scope of the invention as disclosed.

Claims

1. An actuator assembly (100) for a vehicle lock, comprising:

a box (S) is arranged on the upper surface of the box,

an electric motor (4),

a pulley (5) actuating a Bowden cable adapted to be connected to a part of the vehicle lock, and

a gear train (T) connected to the motor (4) and the pulley (5) such that the pulley (5) rotates when the motor is actuated.

2. Actuator assembly (100) according to claim 1, wherein the cartridge (S) comprises a base (7), a cover (8) and a cap (86);

the electric motor (4) and the gear train (T) are mounted on the base (7) and covered by the cover (8);

the pulley (5) is mounted on the cover (8) and covered by the cap (86).

3. Actuator assembly (100) according to claim 2, wherein the gear transmission (T) comprises a first gear (1), a second gear (2) and a third gear (3).

4. Actuator assembly (100) according to claim 3, wherein the first gearwheel (1) is a double gearwheel comprising a first crown (10) and a second crown (11), the second crown having a smaller diameter than the first crown; the second gear wheel (2) is a dual gear wheel comprising a third crown (20) and a fourth crown (21), the fourth crown (21) having a larger diameter than the third crown; the third gear wheel (3) has a first central shank (32) with a splined axial channel (33) for prismatic connection with a second central shank (53) of the pulley.

5. Actuator assembly (100) according to claim 4, wherein the electric motor (4) has a drive shaft (40) connected to a worm (41) which engages the first crown (10) of the first gear.

6. Actuator assembly (100) according to claim 3, characterised in that it comprises detection means arranged in said cartridge (S) in order to detect the position of said third gear (3).

7. Actuator assembly (100) according to claim 6, wherein said detection means comprise a microswitch (W) actuated by the lever (6).

8. The actuator assembly (100) of claim 7,

the third gear wheel (3) having a fifth crown (30) extending for about one half-cycle and lobes (31) projecting radially outwards in opposite directions with respect to the fifth crown (30);

the lever (6) has a fork shape and is hinged to the box;

and the lever comprises a first arm (61) directed towards the lobe (31) of the third gear and a second arm (62) directed towards the microswitch (W).

9. Actuator assembly (100) according to claim 1 or 2, comprising an electrical connector (9) connected to the electric motor (4); the electrical connector (9) has a port (90), which port (90) projects outwards from the box (S) to receive a cable for powering the electric motor (4).

10. Actuator assembly (100) according to claim 3, wherein the base (7) comprises first to fourth seats (70, 71, 72, 73) for housing the motor (4), the first gear (1), the second gear (2) and the third gear (3), respectively; the first gear (1) is rotatably mounted in a second seat (71) by means of a shaft, the second gear (2) is rotatably mounted in a third seat (72) by means of a shaft; and the third gear (3) is rotatably mounted in a fourth seat (73) by means of a set of rotary supports (35).

11. The actuator assembly (100) of claim 5, comprising:

a first plate (P1) mounted in a fifth seat (36) of the box, behind the motor (4), so as to be in contact with the rear end (46) of the drive shaft projecting from behind the motor, and

a second plate (P2) mounted in a sixth seat (37) of the box, in front of the motor (4), so as to be in contact with the front end (47) of the drive shaft.

12. Actuator assembly (100) according to claim 2, characterized in that it comprises a plurality of clips (77) engaging flanges (78) projecting outwardly from the base (7) of the cartridge; the clip (77) is adapted to engage with a seat of a vehicle body to secure the box (S) to the vehicle body.