JPS5826174A - Door lock apparatus for automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] An automobile door locking device according to the present invention is shown.

In a conventional automobile door locking device, a latch that engages the striker, a ratchet that stops the latch, a release lever that rotates the ratchet F, a lock lever, etc. are arranged at the same interior angle along the same virtual plane 11i1. and
The latch can be opened by rotating the release lever,
Locking and unlocking are performed by rotating the assembled four levers. By the way, such a door lock device is designed so that the release lever can be operated inside the vehicle as well as outside the vehicle, and the lock lever can be operated and locked inside the vehicle.

An in-vehicle operating mechanism is provided, and this in-vehicle operating mechanism is provided along a stone-shaped upward surface perpendicular to the above-mentioned virtual plane. Therefore, when operating the locking device via the inside operating mechanism, the three-dimensional direction from the lever of the inside operating mechanism to the release lever and from other levers of the inside operating mechanism to the locking lever is A transformation is necessary,
There are some places where force transmission becomes difficult.

In the conventional door lock device, the latch and lattice V)
is substantially placed inside the main body of the K12 locking device, but the release lever, lock lever, and related links are provided outside the main body using a separate support frame defined by K111 for use with latches, ratchets, etc. Since the main body is to be thrown in parallel, it is necessary to support a link mechanism along the outside as well as inside the main body, and in addition to this link mechanism, the above-mentioned inside operation mechanism is added in the upright state. As a result, the structure of the mechanism to be supported outside the locking device body is complicated, and the arrangement is disorganized, resulting in problems such as difficulty in manufacturing and assembling.

On the other hand, in the past, it was common to use the same armor-picking device on both the front and rear doors of a car, but the rear door had to be equipped with a rock-direction KW-picking device that was somewhat different from the front door. There is also a problem when the locking device used for the rear door becomes difficult to transmit force.

The present invention is considered to be based on the current situation as described above, and its I! The aim is to provide a door lock device for an automobile that does not have the above-mentioned problems.

According to the present invention, the main body of the door lock device mainly incorporates a latch and a ratchet, all remaining mechanisms are supported on the support plate of a bracket having a support plate for standing up from the main body, and the substrate of the bracket is simply attached to the main body. In this way, there is only one point for transmitting force due to three-dimensional direction change, and the overall arrangement is very comprehensive, making it possible to obtain a door lock device that is easy to manufacture and assemble using Coy-Pact.

Next, the present invention will be explained in detail, but before that, the problems of the prior art described above will be explained with reference to the drawings.

In FIG. 1, the automobile door lock device is provided on each of the front door Df and the rear door, and these are operated from outside the vehicle by the outside handle of the door, and the door lock device is operated from outside the vehicle by the outside handle of the door, and by the inside handle of the door, To explain in detail the locking device of the rear rear door Dr, which is operated from inside the car by the sill knob, the outer handle Ho is connected to the connecting link L, the inner handle H1 is connected to the connecting link 1, and the sill knob N is connected to the crank. Lever 3. The locking devices fiLK are connected via connection links and the like. The locking device LFi is attached to the end face of the rear door Dr as shown in Fig. G, and has a guide groove 3 that engages with a striker 8 fixed to the vehicle body.

Particularly in the case of a rear door, due to its design, the locking device is often installed at an angle as shown in Figure 1. As is also clear, the striker date will also be installed at an angle accordingly. As shown in Figure 1ajL, which is a diagram of the internal mechanism of the locking device viewed in the direction of arrow ■ in Figure 3, the latch Lt provided across the striker guide groove 3 of the locking device B is connected to the guide groove S.
The ratchet R, which has a retaining recess 6 that restrains the striker 8 that has entered the interior, and which maintains the state in which the latch restrains the striker, is pivoted from its pivot K and released, '(-R
@ One end of the release lever R, which is operated by K on the same vehicle, is connected to the tip of a link I connected to the outer handle Ho1C through a pin tK, and the release lever R is pivoted by the release operation of the outer handle HO. When the lever Re is rotated in the direction of the arrow, the pressing part f of the lever Re rotates the ratchet R in the direction of the arrow via the bottle lo, and the pawl // at the tip of the ratchet is removed from the notch of the latch Lt. The cage striker 8 can be rotated in the direction of opening.

On the other hand, by opening the inner handle H1, N is released//
(To make the latches I and t freely rotatable in the direction of opening the striker by rotating -R, turn the bell crank lever l- shown in Fig. 3 in the direction of the arrow through the aforementioned connecting link.) This crank lever lever is pivoted from a support plate 73Kk''/IK that stands up from the main body of the locking device B, and when the bell crank lever l- is rotated in the direction of the arrow, its tip /3i arrow Release lever R in the direction shown by
Since the protrusion /6 of e is pressed, the latch LtFi striker 8 is released in the same manner as in the previous case.

As mentioned above, with conventional locking devices.

In order to rotate the release lever R, it is necessary to have a link I connected to the outside door handle HoK and a bell crank lever l- connected to the inside door handle H1 via a link. The lever saw is perpendicular to the plane of the opening lever R, and a three-dimensional change of direction must be carried out in the transmission of forces between them.

On the other hand, as shown in the figure, the bottle 10 is protruded and recessed into the tip of a lock/unlock link 7, and the third link 17 is displaced by the action of a lock lever (not shown) to lock and unlock the bottle. 10 is moved between the A/lock position shown in Figure 1 and the lock position displaced to the right along the long hole llK. When the pin IO is in the lock position, the 1M release lever Re is rotated around its axis. Even if you move it, the pressing part! Since the pin lOK does not function, the latch Lt cannot be released. By displacing the link 17, the above-mentioned lock lever can be rotated from the sill knob 1 through the link and via a not-illustrated rotary lever.The rotary lever is pivotally mounted on the support plate 13. Furthermore, the lock lever, which rotates under the action of the rotary lever, is pivotally mounted on the outer surface of the locking device main body so as to rotate along a plane parallel to the plane of the latch Lt. - The force is transmitted from the bell crank lever saw to the release lever R.
・It is carried out with a three-dimensional direction change, as in the case of force transmission to .

In this way, when a three-dimensional direction change is performed when transmitting force, there is waste in the transmission of force, play in motion, poor operational feel, a mechanism with high dimensional accuracy is required, and the structure becomes complicated.

On the other hand, in the case of a locking device ML installed in the rear door 1, it is often necessary to install the locking device at an angle, as shown in FIGS. 1 and 3.

When transmitting force from the opening lever Re1 of such an inclined locking device (from the outer handle HO through the link/link I), there are restrictions on the installation position and direction of the outer handle HO and the locking device 1L. V! When the link 7, which has to be bent at two places as shown in the figure, is opened and transmits rotational force to the par R@, the force is applied downward to the upper end of the slot/slip l. The power to be
Only the component force in the direction parallel to the surface of the release lever Re can be used as the rotational force of the release lever R, and the component force in the other direction is just a wasted force.

Therefore, the conventional locking device is not suitable especially when used for a rear door.

As described above, the conventional locking device is unreliable in terms of force transmission, and the mechanism that is supported on the outside of the main body is disorganized and complicated.

The present invention solves the problems of the prior art described above, and the details of the embodiment thereof are as follows.

FIG. S is a side view of the automobile door lock device of the present invention in the installation position corresponding to FIG. 3, and #! Todoroki is number S
It is a figure seen in the direction of arrow V. In these figures, at φ,
The locking device is composed of a main body L8 and a locking device control mechanism arranged along a plane extending from the main body. For example, attach a base J made of synthetic resin to the main body.
A shell body is constituted by the metal cover plate) & , and the latch Lt is rotatably supported inside the shell body by a shaft. Latch LtFi, state 11 with the base and locking device control mechanism removed from the state shown in FIG.
As shown in the second figure corresponding to FIG.

As is well known, the latch Lt has a stone recess that engages with the striker 8, and the striker 8, which is restrained in the recess J, is in the state shown in FIG. It cannot escape because it is engaged with the notch r of the latch Lt and prevents the latch Lt from rotating in the releasing direction. Note that the % mark indicates a half-latching notch. Ratchet) R is, as is known, cover plate co/
It is pivoted by the shaft and NK.

When the end 3/ of the ratchet R is pressed in the direction of the arrow in the state shown in FIG. 7, the retaining claw escapes from the notch U.

The latch Lt', which is pressed counterclockwise by a known spring (not shown), rotates as shown in the figure, and the striker S
This allows the door to be opened.

The mechanism shown in FIGS. 7 and 7 is covered with a base
Exposed. The holes in the cover plate v and the three holes in the base y are aligned as shown in Figure S. These three holes j are used when assembling the locking device Lt inside the door. The base X has, in a known manner, a bulge 3 which forms a striker guide cavity which covers the striker guide groove of the cover plate ν.

The locking device main body L1 is different from the conventional case, and the latch Lt
and a ratchet R, and all the members of the locking device control mechanism that controls this mechanism are shown in FIG.
As shown in FIGS. 6 and 9, it is supported on the outer surface of the main body.

In FIG. 10, which shows only the most basic members of the control mechanism, the bracket is composed of a base plate and a supporting plate that stands up integrally with the base plate. Board reference/F
As shown in the figure, the tip of the pivot shaft (y) of the latch (i) and the ratchet (h) is fixed to the outer surface of the main body by passing it through one of the mounting holes and caulking it. .

In addition, in FIG. 9, N is the ratchet R and the latch Lt.
It is a spring to press in the direction of engagement.

At No. 10'/IJ, there is a hook ij contact lever, which is pivotally attached to the support plate holder by a pivot t.

The contact lever 7 is approximately L-shaped as shown in Figure 1, and the upper axis is inserted through the hole in the center and the hole SO in the support plate of the bracket.

One arm of the contact lever holder is provided with a long hole S/, and the tip of the other arm is a contact portion S/.

As shown in the figure, this abutting part 32 faces the end siK of the ratchet, and as shown in FIG.
/ can be operated in the direction of the arrow.

Referring again to FIG. 10, reference numeral 5J is the outer release lever, which is made of a substantially three-branch-shaped plate as shown in the figure. A hole is provided at one apex of this plate,
The pivot shaft v, 1 is inserted outside this hole. Therefore, when the outside is opened / (-jJ is coaxially pivoted to the support plate radius with the contact lever 7, it becomes K. An opening S4 is formed on the - side near the tip of the outside opening lever j3. The opening 34 of the hole consists of a basic Kti, an elongated hole portion 3 formed in the direction toward the hole SO, and an enlarged hole portion 34b extending laterally from the long hole portion 3. A spring receiver part j7, a connecting link connecting part 31, and an abutting part j? are formed in the tip edge part.The connecting part jtlK of the outer opening 1//<-tJ is connected to the outer handle Ho (the first Figure) The ends of K consecutive connecting links I are pivotally connected with play as shown in Figure S.
The spring holder is attached to one end 6 of the spring 6o shown in Fig. 1.
oε is engaged, and the other end 60"O is in contact with the fixed side of the locking device as described below. Therefore, due to this spring lever, the outer release lever, !tJilt, attempts to rotate clockwise in the same figure. The other end bob of the spring 60 has a chevron-shaped bent portion 1/.This bent portion 6
The effect of / will be described later. The contact portion 5de is normally in contact with the arm of the contact lever IA7 having the elongated hole jl.

Contact lever Hiro 7 long hole j/ and outside @ release lever j
The long hole 56- of the opening S4 of J has the same size and usually one position coincides with the long hole 56-, and the interlocking bottle 1J is inserted into the long hole 36- of the long hole J. This interlocking pin 6J has a head shape to prevent it from coming off. Interlocking bin 43 is the 1st/@JII
As shown in C, it is provided protrudingly from the tip of the lock link t4. This link 44, including its bi/63, is entirely made of synthetic resin.

The function of the locking link 44 will be described later, but eventually K
However, this link is displaceable approximately in its longitudinal direction, and in the unlocked position shown in FIGS.
The elongated hole si and the elongated hole part are located at the tip side of 34 m so as not to face each other.

With the above configuration, when the outer handle 111o is operated, the connecting link l swings downward in the direction shown by the arrow in FIG. 5 and FIG. 1O, as in the case of the known side.
The outer release lever 5J is rotated counterclockwise about the pivot Ill against the force of the spring 600.

At this time, since the interlocking/moving pin 43 is in the unlock position on the distal end side as shown in FIGS. El-, Con I'ri) Lz/(-
4'? i Rotate in the same counterclockwise direction, and press the ratchet R in the direction of the arrow in Fig. 7 with its abutting part S.
The latch I, t releases the striker B, allowing the door to be opened.

The above is the release operation of the lock device by operating the outer handle HO, but the following mechanism is provided for the release operation using the inner handle H1.

In FIG. 10, reference numeral 61 denotes an inner opening lever, and this lever is pivotally connected to the support plate by the aforementioned pivot. The shape of the inner opening lever 1j is shown in FIG.
41 is inserted. As you can see from the above, Contact Lever Tei 7. Outer opening lever (-33 and inner opening lever 48 are attached by a common single pivot ql) 4
IA's support plate UK is pivotally mounted. Pivoting the KJ type lever with a single shaft in this way simplifies the structure,
This is advantageous in that it facilitates manufacturing. Inside release lever 68
has an inner handle I[ii (a connecting part 7o to a series of connecting links) and a bent contact part 71 at its tip.
have. The connecting direction of the connecting link to the connecting portion 70 is as shown in FIG. As shown in FIG. 70, the side edge of the inner release lever 11 on the connecting portion 7o side is shaped so as to come into contact with the receiving portion 7jK projecting from the support plate.

Further, the contact portion 71 of the inner release lever 650 is adapted to come into contact with the side edge of the outer release lever 3J-.

The force of the outer release lever jJFi spring 6o causes the first
In Figure 0, lightning is given the habit of rotating clockwise. This rotational behavior allows the lever to open outward! ,? The contact portion 71 is pressed to the right in FIG. When it comes into contact with part 73, it is blocked by K. On the other hand, the contact lever 7 is also subjected to the rotational force of the outer release lever s3 via the abutting portion jF of the outer release lever 5J, but due to the protrusion 7j (Fig. S) on the support plate, The contact lever cannot be rotated completely clockwise.

In the above configuration, when the inner handle H1 is operated,
Connecting link 2 is pulled to the left in FIG. 3 - the inner opening lever! l is rotated counterclockwise around the pivot I in FIG. 10 against the force of the spring 600, and its abutment 7/ rotates the outer release lever j3 in the same direction, so that In the same way as when operating the outer handle P, the contact lever 7 is also rotated in the same direction, and the end J/ of the ratchet is pushed.

Latch Lt releases striker B.

As described above, by rotating the outer release lever jet or the inner release lever 11, the outer or inner locking device of the car door can be released via the contact lever 4c7. A locking/unlocking mechanism for locking or unlocking the book device is provided as described below.

When the interlocking bin 4JFi mentioned above is in the unlocked position shown in FIG. 1O, when the outer 111141 release lever 9 is rotated counterclockwise, the rotational force is transmitted to the contact lever 447 to enable the locking device to be released. On the other hand, when the interlocking pin 13 is displaced along the elongated hole 3/ and the elongated hole sag toward the end closer to the axis q, the interlocking pin/
6J#'i, the position corresponding to the enlarged hole portions si and b of the opening j4 is taken as K. In this state, the outer release lever s
3 in the counterclockwise direction, the interlocking pin 6J only relatively enters into the enlarged hole portion sbb, and the counterclockwise rotation of the outer release lever j3 becomes a blank movement, and the interlocking pin AJK rotates. Since no power is transmitted, no rotation of the contact lever 7 occurs, and therefore a locking condition occurs in which release of the locking device can occur.

To be able to obtain such a locked state,
The interlocking bin 43 is integrally provided with a locking link 46, as already explained with reference to FIG. This link 44 is provided behind the outer release lever 53, as shown in FIGS. It is equipped with This bottle tO is inserted into the bottle hole 12VC of the lock/unlock lever ll. rock·
The unlock lever tiFi has a pivot hole tS in its center, and the end opposite to the bottle hole C serves as an operating end. Lock/unlook lever 1/bottle hole 1
A pivot 8 is inserted into 3VC, and this pivot 8 is inserted into the hole tyK of the tip protrusion of the receiving portion 7J of the bracket and caulked. Thus, when the four-wheel unlock lever 1/ is rotatably supported in the state shown in the first figure, it becomes K.

As shown in Fig. 11 and Fig. 1J, the central upper part of the lock a/lock lever t/ has ! Pair of collision parts 1
9, a recess 90 having a t-de is provided, and this recess 9
The engagement protrusion f/ of the distal end protrusion of the receiving portion 7J is located within 0.

Therefore, the lock/unlock lever <-11 is rotatable between two end positions where the abutting portion rtt of the thread abuts against the engagement protrusion.

On the lower side of the bin 10 of the locking link 14, a 72
As shown in the figure, the chevron-shaped bent portion 61 of the end A (71) of the spring 60 is engaged. Once, when the lock/unlock lever 1/ is pivotally displaced between one end position, the bottle 10 has to overcome the chevron bend @bi in the middle, and thus the lock/unlock lever 1/ is rotated between the end positions. Moderation occurs in the movement of the unlock lever t/. In the state shown in Fig. 1, the lock/unlock lever I/ is in the unlock position, which has been rotated one clockwise to the final position, and the interlocking pin 4 is in the unlock position.
31i It is located on the lid equivalent to Figure 1O. To obtain the locked state, the lock/unlock lever 1/ is rotated counterclockwise in the first figure. As a result, the bottle ``to'' is pulled almost to the right, the locking link #1 is displaced to the right as a whole, and the linking bottle AJ at the tip is moved to the pivot point within the long hole si and the long hole SO. The locked state is obtained. Due to the occurrence of this lock condition, the lock a/
To rotate the lock lever 11, connect the connecting links connected to the cylinder knob MK to the operating end of the lock lever 1/1 as shown in Fig. S.

By suppressing the cylinder knob N, the link reference is pulled to the left in the figure.

As described above with respect to the embodiments, in the present invention, the only members that directly belong to the door lock device body are the latch and ratchet, and all other control mechanism members are fixed to the outer surface of the body. It is supported by the support plate, so after attaching all the parts of the control mechanism to the support plate,
All assembly work is completed by simply fixing the bracket outside the main body, simplifying the assembly process. In addition, this structure reduces the number of points where force is transmitted due to three-dimensional direction change, resulting in a mechanically stable structure, which reduces problems with assembly accuracy, and makes the overall structure more compact. Furthermore, in the present invention, when the force is transmitted by the connecting link from the outer handle to the outer release lever, all the force applied to the link is effectively used as the rotational force of the outer release lever. In addition, in the present invention, as in the embodiment, it is also possible to pivot the inner release lever, outer release lever, and contact lever that constitute the lever device by a common pivot, and in this case, assembly becomes easier. .

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional example showing the relationship between the door lock device, the handle, and the operating section of the Silknob Go. Figures f and y are principle diagrams showing the main parts of Figure 1 enlarged, Figure ψ is a diagram viewed in the direction of arrow ■ in Figure 3, Figure S is a door according to the present invention. A side view of the lock device seen from the direction corresponding to FIG. 3, FIG. 6 is a view seen in the direction of the arrow ■ in FIG. Fig. 9 is a view similar to Fig. 7 in the released state, Fig. 9 is a perspective view of the door lock device of the present invention, and Fig. 10 shows only some parts of the control mechanism of the door lock device shown in Fig. 9. FIG. 1 is an exploded perspective view of the door lock device control mechanism, and FIG. 12 is a perspective view of the same control mechanism with some of its members removed. L...Door lock device, Ll...Door lock device main body. -...Lock device control mechanism, Lt...Latch, R...
...Ratchet% S...Striker, N...Sill knob, I...Pace, ν...Cover plate, force striker guide, Su...Bracket, t2...Support plate, Hiro7...・Contact lever, Hirol... Axis,! ;
l... Long hole, 5... Contact part, 53... Outside release lever, 56... Opening, St-... Long hole part, 36
'b... Enlarged hole part, 6o... Spring, 4/- spring 6
Q's chevron bent part, 63... Interlocking bottle, T... Locking link. 68...Inner release lever, a! ...Touching section. Applicant's agent: Inomata Kiyoshi Procedural Amendment Date: June 1949 Director-General of the Patent Office: Kazuo Wakasugi 1, Indication of the case: Patent Application No. 1211Hg, filed in 1939 2, Name of the invention: Automobile layer door four-sock device 3 , the person making the amendment, the related patent applicant (-1$), and the person making the amendment shall belong to Kōkō Co., Ltd.

Claims (1)

[Scope of Claims] 1. A main body having a striker guide groove, and a striker engaging recess displaceably supported inside the front main body at a position along the striker guide groove and substantially crossing the striker guide groove. A door lock device for an automobile includes a latch, a ratchet that engages with the latch to prevent displacement of the latch in the releasing direction, and a control mechanism to control the movement of the ratchet. ) K latch (Lt) and ratchet F (1) are arranged along the same imaginary plane, and a support plate (radius) rising from the control mechanism (1) main body in the direction of the imaginary plane. It is equipped with a bracket fixed to the 4hK main body (supporting the contact between the phosphor and , this lever device has an outer and an inner door handle (116, I) on its input side.
IL) K are connected to each other so that they can be rotated automatically by the operation of the handles, and furthermore, this lever device directly acts on the ratchet (R) on its output side, and has a contact portion ( 5
(e) The door lock device has a contact portion with the door lock device located adjacent to the ratchet so that the ratchet can be displaced in the latch release direction when the lever device is rotated. A contact lever (Hiro 7) in which the lever device has a contact portion (Ω) that acts on a ratchet (R). Consists of an outside release lever (S3), an inside release lever (11), and K. The outside release lever (S3) is connected to the outside door handle (horse) K, and the inside release lever (41) is connected to the inside door handle (Hl). is connected to the inner release lever (
41) is still in contact with the outer release lever (S3) so that its rotational force can be transmitted to the outer release lever (S3), and the outer release lever (jj
) Fi, 70 times The interlocking bin (43) can transmit the power to the contact lever (4'? ) via the interlocking bin (43).
K is in contact with this interlocking bin, and the outer release lever (jJ)
Lock/unlock mechanism (ti, 44) to the lock position where the rotational force of is not transmitted to the contact lever (4'?)
) Claim t is freely displaceable by
*li! Door lock device. J, contact lever (Hiro)), its rotation direction Kit
A long hole (!/ ) is formed in the vertical direction, and a part of the outer release lever (jJ) is a contact lever (see)).
K overlap, and in the overlapped part. The elongated hole (j/ ) and the elongated hole part (34 m) for singing and the enlarged hole part (#1) that communicates with one end in the longitudinal direction of the elongated hole.
) is formed, and this opening (34
) and the long hole (si) of the contact lever. ) to the contact lever (≠7), and the interlocking bottle (6J) is connected to the enlarged hole part gtb)r.
1c When moved to the opposite position, the outer release lever (
2. The door lock device according to claim 2, wherein the door lock device is configured such that the door lock member jJ) cannot act on the interlocking bin. The door lock device according to claim 2, wherein the contact lever (4c7), the outer opening lever (SS), and the inner opening lever (6g) are mounted on a common pivot.