KR20070031337A - Motor-actuated lock for vehicle doors or flaps - Google Patents

Abstract

The motor-driven lock for a vehicle according to the present invention is provided with a lock housing 11 comprising lock members and a motor 20 comprising a motor housing 21. The lock housing 11 has a connection 12 for the motor housing 21. The motor housing 21 is fixed to the lock housing 11 by fixing means 30. In order to develop a lock with a low noise motor 20, the present invention proposes to install an elastic member 40 at the connection 12 between the motor housing 21 and the lock housing 11. The fixing means 30 mesh with this elastic member 40.

Description

Motorized locks for vehicle doors or flaps {MOTOR-ACTUATED LOCK FOR VEHICLE DOORS OR FLAPS}

The invention relates to a lock of the type set forth in the preamble of claim 1.

One lock of this type is known from DE 102 33 781 A1. The lock housing for the member of the lock has a connection for the motor housing of the motor designed as the electric motor. The motor housing is fixed to the lock housing by fixing means, and the lock housing is fixed to the door or flap of the vehicle.

When the motor is driven, vibration occurs in the motor housing. Such vibration may be caused by an imbalance of the motor member. Noise generated by this vibration is transmitted to the door or flap through the lock housing. The door or flap acts like a resonant body that amplifies motor noise. This amplified motor noise causes a great inconvenience.

One way to harm the noise of the motor is by placing the motor away from the lock housing and connecting the distance between the two parts by a flexible shaft. This method is complex but entails contextual constraints. In particular, this method requires a large amount of space, which is not helpful for other uses in the vehicle.

An object of the present invention is to develop a motor driven lock having a low noise motor. This object is achieved according to the invention through the measures described in the characterizing part of claim 1, in which the main meanings of the measures are described below.

The motor housing is separated from the lock housing by the elastic member. What is important here is that the fastening means between the motor housing and the lock housing also engage only the elastic member. The vibration is thereby limited only to the motor housing. The elastic member absorbs such vibrations. This design of the lock and motor is characterized by very good motor smoothness.

In particular, according to claim 2, the advantage is provided that the resilient member can be assembled as a single unit with the motor housing in advance and handled as a whole (one set). This simplifies motor mounting into the lock housing. In the fixing step when mounting the motor, the elastic member no longer needs to be provided separately between the motor housing and the lock housing.

Further measures and advantages of the invention are set forth in the claims, the following description and the drawings. In the drawings, the invention is shown in its embodiments and in accordance with different viewing directions.

1 is a perspective view of the lock after the motor is locked to the inner surface of the vehicle trunk lid, partly shown.

2 is a perspective view of a preassembled unit formed from a plate of motor and elastomeric material.

3 is a side view of a fully assembled assembly consisting of a motor and a lock, with the lock-mounted trunk lid omitted.

FIG. 4 is a stepped axial cross-sectional view of the assembly shown in FIG. 3, taken along cut line IV-IV of FIG. 3.

The object of the invention is a special connection between the lock 10 and the motor 20 fixed to the trunk lid 13 of the vehicle. The members of the lock are in the lock housing 11. The motor 20 includes a motor housing 21 to which a connection 12 to the lock housing 11 is assigned. In the connecting portion 40, an elastic member 40 exists between the motor housing 21 and the lock housing 11, and the fixing means 30 is also engaged with the elastic member. The elastic member 40 is first mounted in the motor housing 21, whereby a preassembleable unit 50 is formed. Therefore, it is now only necessary to fix the unit 50 to the connection 12 of the lock housing 11.

The elastic member 40 is formed of a plate 41 (hereinafter referred to as "elastic polymer plate") molded from an elastomeric material. The elastomeric plate 41 is substantially in the form of a frame 42. In assembly, as shown in FIG. 2, the frame opening 43 of the motor members 22, 23, ie, the output shaft 23 and the brush holder 22, project from the motor housing 21. Used as a through hole.

The motor housing 21 has a fixing flange 24. The unit 50 described above is formed by the frame 42 having the flange 24 accommodating portion, and the flange 24 is partially obscured by the accommodating portion. The receptacle is formed by a groove (not shown in detail) in the frame 42. Thus, the upper surface 51 and the lower surface 52 made of an elastomeric material are formed on both sides of the motor flange 24 in the unit of FIG. 2. The front 25 and back 26 of the flange 24 are covered by members 45 integrally formed from the elastomeric material of the frame 42. The members also engage the fastening means 30.

As best shown in FIG. 4, the fastening means 30 is formed of a bush 31 and a fastening pin 32 protruding from the bush interior 33, the fastening pin being formed by screws or rivets. Can be. This fixing pin 32 has a head 32 at one end thereof. The elastomeric members 45 have through holes 47, each of which is aligned with a similar through hole 27 present in the flange 24 of the motor housing 21. The elastomeric members 45 lie at the beginning and end of the film hinge 46, as shown in Fig. 2. When secured, the shackle 48 is folded and the motor flange 24 according to Fig. 4. The positive polymer member 45 is placed on both sides of the) and the shackle 48 acts like a film hinge 46, as shown in Figure 4. In this case all the through holes 27, 47 are It is aligned in a straight line for accommodating the fixing means 30.

In the fixed situation shown in FIG. 4, one end 35 of the bush is supported by the connecting portion 12 of the lock housing 11, and thus the end is referred to as the "support end" of the bush 31. The other end 36 of the bush is referred to as the "stop end" because it is used as a stopper of the pin head 34. In the fixing step, the lower pin end 37 of the fixing pin 32 protrudes from the supporting end 35 of the bush 31 and is fixed in the lock housing 11. A screw receptacle 16 provided in the lock housing 11 is used for this fixation, and a corresponding screw supported on the pin end 37 can be tightened into the screw receptacle.

In the assembly situation shown in FIG. 4, it is very important that all faces of the fixing pin 32 are radially spaced apart from the inner face 33 of the bush 31. In addition, the bush 31 has an axial length designed such that the clamping compression of the frame 42 is prevented by the fixing pin 32 in the fixing situation of FIG. 4.

The frame 42 further has a protruding lip 54 which is tightly supported on the support surface of the lock housing 11 in the assembly situation of FIG. 4.

The elastomer frame 42 is formed with a shaped portion in the form of a positioning pin 49, and the flange 24 and the lock housing 11 of the motor housing 21 have corresponding shaped portions in the form of a receiving portion 14. This simplifies not only the assembly of the unit 50 of FIG. 2 but also the mounting of the unit 50 to the lock housing 11 according to FIG. 4.

The lock housing 11 further has a hole 15 in the region of the connection 12 described above, in which the input shaft 23 of the motor 20 protrudes from the hole in the fixing step. At this time, in the fixing step, an annular body 53 made of an elastomeric material is disposed in the region. The annular body 53 serves to seal the hole 15 on one side and to guide the output shaft 23 of the motor 20 on the other side.

Such annular body 53 is preferably formed integrally with the frame 42. This can be realized by connecting the annular body 53 with the frame 42 also formed of elastomeric material via a link member (not shown in detail).

* Drawing code list *

10: lock

11: 10 lock housings

12: 20 connections provided in 11

13: flap, trunk lead

14: corresponding receiving portion, 49 containing portions provided in 11

Holes provided at 15: 11

37 screw receptacles provided in 16:11

20: motor

21: 20 motor housings

22: 20 brush holders

23: 20 discharge shafts

24: 21 flanges

25: 24 front

26: the back of 24

27: 24 through hole

30: fixing means

31:30 bush

32: 30 fixed pin

33: 31 bush inside, 31 inside surface

34: 32 pin head

35: one bush end of 31, support end of 31

36: other bush end of 31, stop end of 31

37: 32 pin ends

40: elastic member

41: 40 elastomer plates

42: frame of 41

43: 42 openings

45: elastomeric member provided in 42

46: film hinge between 45

Through-hole provided at 47: 45

48: shackle consisting of 45, 46

49: 42 molded parts, positioning pin

50: 20, 42 units

51: 42 top

52: bottom of 42

53: fantasy body for 40 and 41, 23

54: Lip seal between 42 and 12

Claims (14)

As motor-driven lock 10 for a door or flap 13 of a vehicle, A lock housing 11 for receiving members of the lock and mounted to the door or flap 13 or to a portion of the vehicle body disposed next to the door or flap 13; A motor 20 for driving the lock members, the members of the motor being received in a motor housing 21 A connection 12 for the motor housing 21, provided in the lock housing 11, and In the motor-driven lock (10) for a vehicle door or flap, comprising fixing means (30) for fixing the motor housing (21) to the lock housing (11), Elastic members 40 are installed at the connection part 12 between the motor housing 21 and the lock housing 11, Characterized in that the fixing means 30 is engaged with the elastic members 40, Motorized lock for vehicle door or flap. The method of claim 1, The elastic members 40 together with the motor housing 21 forms a pre-assembleable unit 50, Characterized in that the unit 50 can be fixed to the connecting portion 12 of the lock housing 11 as a whole (one set), Motorized lock for vehicle door or flap. The method according to claim 1 or 2, The elastic members 40 are formed integrally and are a component part of a plate molded of an elastic material called an elastomeric plate 41, Motorized lock for vehicle door or flap. The method of claim 3, The molded elastomer plate 41 has the form of a frame 42, In the assembling step, the opening 43 of the frame 42 is used as a through hole for the brush holder 22 and / or the output shaft 23 of the motor 20, Motorized lock for vehicle door or flap. The method according to any one of claims 1 to 4, The motor housing 21 includes a flange 24 for its fixing, The elastomer plate 41 or the frame 42 has a receiving portion for the flange 24, Characterized in that the front face 25 and the back face 26 of the received flange 24 are covered by the members 45 of the elastomeric material, Motorized lock for vehicle door or flap. The method of claim 5, In order to engage the fixing means 30, the elastomeric plate 41 or the frame 42 or the elastomeric member 45 and the flange 24 of the motor housing 21 are provided with through holes 27 and 47. ), The fastening means 30 is formed of a fastening pin 32 having an end-side head 34 of a screw or rivet, which protrudes through the bush 31 and the bush interior 33, In the fixing step, the through holes 27 and 47 receive the bush 31, One end 35 of the bush is supported by the connecting portion 12 of the lock housing 11 to act as a support end, The pin head 34 is stopped at the other end of the bush which acts as a stop end, Characterized in that the lower pin end 37 of the fixing pin 32 is fixed in the lock housing 11, Motorized lock for vehicle door or flap. In the motor according to claim 6, In the fixed state, all surfaces of the fixing pin 32 is characterized in that the radially spaced apart from the inner surface 33 of the bush 31, motor. The method according to claim 6 or 7, One end is determined by the stop end 36 and the other end is determined by the support end 35 in the axial length of the bush 31, in which the elastomer plate 41 or the frame 42 is fixed. It is characterized in that the clamping crimp of the size is designed to the extent that it is prevented by the fixing pin 32, Motorized lock for vehicle door or flap. The method according to any one of claims 4 to 8 or a plurality of The elastomer plate 41 or frame 42 comprises a shackle 48 formed of the elastomeric material in a circumferential region, The shackle 48 is bent to both sides of the flange 34 of the motor housing in a fixed state, The shackle 48, the flange 24 and the elastomer plate 41 or frame 42 comprise straight through holes 27, 47 for the fastening means 30. Made, Motorized lock for vehicle door or flap. The method according to any one of claims 2 to 9 or a plurality of Flange 51 and / or lock housing 11 of motor housing 21 on the top 51 and / or bottom 52 of the elastomer plate 41 or frame 42 on one side. Connection 12 includes moldings 14, 49, the moldings being configured for positioning of motor housing 21 to lock housing 11 and / or in the unit 50. Characterized in that it is used for the alignment of the motor housing 21 with respect to the polymer plate 41 or the frame 42, Motorized lock for vehicle door or flap. The method of claim 10, The moldings are on one side positioning pin 49 provided on the elastomer plate 41 or frame 42 and on the other hand the flange 24 of the lock housing 11 and / or of the motor housing 21. Characterized in that formed in the inner receiving portion 14, Motorized lock for vehicle door or flap. The method according to any one of claims 1 to 11, The lock housing 11 has a hole 15 in the region of the connecting portion 12, which hole is used as a through hole for the output shaft 23 of the motor 20 in the fixed state, In the fixed state, an annular body 53 made of an elastomeric material is mounted in the hole 15, Said annular body 53 is used for sealing of said hole 15 and / or for guiding the output shaft 23 of said motor 20, Motorized lock for vehicle door or flap. The method of claim 12, The annular body 53 is characterized in that formed integrally with the elastomer plate 41 or the frame 42, Motorized lock for vehicle door or flap. The method of claim 13, The annular body 53 is characterized in that it is connected with the elastomeric plate 41 or the frame 42 via an axial and / or radial link member. Motorized lock for vehicle door or flap.

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