JPS5826175A - 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] The present invention relates to a door lock device for a motor vehicle.

A conventional automobile door lock device includes a latch that engages a striker, a ratchet that locks the latch, and a release lever that rotates the ratchet.

When the Rotterepper capes are placed in the same virtual plane and in the same direction, the latch can be released by rotating the release lever. By the way, we want to make it possible to operate the door release lever inside the car as well as outside the car.
! In order to be able to operate the lever inside the car.

The inside of the car is equipped with an operating mechanism. Use a locking device when operating the pipe with a cane.

As three-dimensional direction changes from the lever of the inside operating mechanism to the release lever () and from other levers of the inside operating mechanism to the lever are required, there are several points where power transmission is disrupted. 〇Again. I! In conventional door locking devices, the latch and ratchet are located within the IK qualitatively one loading body, while the release lever, the luff clipper and its associated linkage are mounted on a supporting frame that is separately fixed outside of the one body. Latch using the body, provided parallel to the ratchet area, 1
In addition to the inside of the main body, it is necessary to support a link mechanism along its outer surface, and in addition to this link mechanism, the above-mentioned inside operation mechanism must be added in the upright state. 1: The structure of the mechanism to be supported outside the main body of the I-took device is complicated, and there is no alignment with the arrangement 11C1, resulting in a problem that manufacturing and assembly cannot be performed easily.

On the other hand, in recent years, the front door and rear door of 1llI vehicles have been damaged.
It is normal to use the same locking device for both doors, but there are circumstances that force the locking device to be installed in a slightly different direction from the front door for the rear door. There is also the problem that the locking device used causes considerable inconsistency in the transmission of force.

Furthermore, since the structure of the conventional door lock device is complicated, the complexity will further increase if a child-proof mechanism is provided.

The present invention has been made in view of the above-mentioned current situation, and its object 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 rising from the main body, and the substrate of the bracket is simply attached to the main body KIIR. , the location of force transmission due to three-dimensional rotation! There are only a few places,
The overall arrangement is extremely compact; a door lock device that is easy to manufacture and assemble can be obtained. Also, according to the present invention, a child-proof mechanism can be constructed relatively easily.

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

Each of the front door Dr and the rear door Dr is provided with a front door Dr and a rear door Dr, which are operated from outside the vehicle by means of an outer knob of the door, and from inside the vehicle by means of an inner knob of the door and a locking knob inside the vehicle. The details of the locking device for the rear door Dr will be explained below.

The outer handle Ho is connected to the connecting link 1, the inner handle H1 is connected to the connecting link 2, and the sill knob N is connected to the crank lever J, connecting link, etc.

Connected to the locking device. Locking device.

They are scattered on the end face of the rear door Dr as shown in FIG.

It has a guide groove j that engages with a striker S fixed to the vehicle body side.

Particularly in the case of a rear door, the C1 lock device is often installed at an angle as shown in FIG. 1 due to its design. As is clear from the wcJ drawing, which is an enlarged schematic view of the main part of FIG. 1, the striker S is also installed at an inclination accordingly. As shown in Figure 3, which is a diagram of the internal mechanism of the locking device viewed in the direction of the arrow ■ in Figure 3, the locking device L lid guide groove! The latch LL provided across the guide groove! It has a retaining recess 4 that restrains the striker S that has entered the inside.

The latch (R) which holds the striker in a restrained state is rotatably operated by the release lever (R) which is pivoted by its pivot 7.The release lever (R) is rotatably operated by the release lever (R), which is pivoted by the latch (7). When the open/release lever is rotated in the direction of the arrow on the pivot point 7t by the opening operation of the outer handle, the lever R is pressed 11! Rotates the ratchet R in the direction of the arrow through the pin 10, and the pawl/
/ is removed from the notch of the latch Lt, so the latch Lt can be rotated in the direction to release the striker S. On the other hand, when the inner handle is opened, the release lever R is removed.
In order to rotate the latch Lt in the direction of opening the striker S, rotate the bell crank lever saw shown at No. jliEIK in the direction of the arrow via the above-mentioned connecting link Jt. .

A pin/
4cVc] When the bell crank lever saw is pivoted and rotated in the direction of the arrow, its tip /j pushes the protrusion 11 of the opening lever in the direction shown by the arrow.

Similarly to the previous case, the latch Lt releases the striker S.

As mentioned above, with conventional locking devices.

In order to rotate the opening lever &, a link 1 connected to the outer handle Ha and a bell crank lever saw connected to the inner handle H1 via a link are required, but in this case, the bell crank lever saw is not opened. It is perpendicular to the plane of VA-Ra, and a three-dimensional change in direction must be performed in transmitting the force between them.

On the other hand, as shown in the reference figure, the pin /Q marked with * is provided protrudingly at the tip of the link link 17 for unlocking the lock number, and this link 17 is displaced by the action of a lock lever (not shown). Then, move the pin between the uncooked position shown in Figure 1 and the locked position, which is displaced to the right by the elongated hole/1lcf9. When the pin IO is in the locked position, the latch Lt cannot be released even if the release lever member is rotated by seven turns on the shaft because its suppressing portion does not act on the pin IO. The rotation of the above-mentioned loft clipper that displaces the linkage link is carried out from the sill knob N through the link reference and via a rotation lever (not shown), which is pivotally mounted on the support plate/JK. The lock lever that rotates under the action of the rotary lever is notch LtlF)I.
Since it is pivotally mounted on the outer surface of the α-lock device body so that it rotates along parallel planes, the force is transmitted from the 1-turn lever to the lock lever from the bell crank lever to the release lever R. As in the case of force transmission, it is performed with a three-dimensional direction change.

When a three-dimensional direction change is performed when transmitting force in this way, there is waste in transmitting the force, play in the movement, and a poor operational feel.1 A mechanism with high dimensional accuracy is required, and The structure becomes complicated.

On the other hand, as for the lock device installed on the rear door Dr, as shown in FIGS. 1 and 3, it is often necessary to install the lock device at an angle.

When transmitting force to the release lever R of such an inclined locking device from the outside through the connecting link L, there are restrictions on the installation position and direction of the outside handle chest and the locking device. must be bent at one point as shown in the figure. When transmitting rotational force to the release lever through a link having such a shape, the line of force applied downward to the upper end of the link l, Only the component force in the direction parallel to the surface of the opening bar can be used as the rotational force of the release lever R, and the component forces in other directions are just a waste of force.

Therefore, the conventional locking device is not suitable for use on rear doors.

As mentioned above, the conventional locking device is unreasonable in terms of force transmission, and the mechanism that is supported on the outside of the main body as a whole is complicated because there is no trench or tb. The details of the embodiment are as follows.

FIG. 3 is a side view of the automobile door lock device of the present invention in an installation position corresponding to FIG. 3.

Figure 1 is a diagram of Figure 1 viewed in the direction of the arrow ■. In these figures ec), the locking device is composed of a main body L1 and a cooker position control horizontal structure L2 arranged along a plane extending from the main body. The main body L1 is composed of a shell made of 9, for example, a synthetic resin base and a metal cover plate ν, and 11 of the shells include latches I and t.
is rotatably supported around an axis n. The latch Lt is supported in contact with the surface of the cover plate 10, as shown in FIG. 7, which corresponds to the state shown in FIG. 6 with the pacer and lock device control mechanism L2 removed. As is well known, the latch Lt, which is located astride the striker guide groove 9 that guides the striker 8 shown in the figure, has a recess 19 that engages with the striker 8, and a recess 19? In the state shown in Fig. 7, when the striker is restrained in the mechanism, the engagement pawl of the ratchet R engages the notch uK of the latch Lt, preventing the latch Lt from rotating in the release direction. Due to this, it is not possible to escape.The trick is to use the -1-7 latching notch. In a known manner, R is pivotally connected to the cover plate ν by an axis SO. When the end 3/ of the ratchet) H is pressed in the direction of the arrow in the state shown in FIG. Since the striker S is rotated as shown in the figure and the striker S is released, the door can be opened.

The mechanism shown in Figs. 7 and 7 is covered with a base J, the latch Lt is hidden in the main body Ll, and the latch R is almost exposed. Holes g and J correspond as shown in Fig. 3. ◎ These holes and J are the 0 base m used when assembling the locking device inside the door. The locking device body L1 is different from the conventional case, and the latch Lt
and a ratchet R, and all members of the locking device control mechanism Ll that controls this mechanism are
l! As shown in FIGS. 4 and 2, FIG. 10K shows only the most basic components of the control mechanism supported on the outer surface of the main body L1.
The main feature is the bracket, which is composed of a board nail and a support plate that stands up integrally with it.
As shown in FIG.
11 and is fixed to the outer surface of the main body L1 by caulking (see Fig. 2), aS is a spring that presses the ratchet R in the direction of engaging with the latte I, t. (in Fig. 10), Hiro 7 is a contact lever,
The contact lever 7, which is pivotally attached to the support plate 3 by a pivot q, is approximately L-shaped as shown in Fig. 1, and has a hole in the center and a support 1 of the bracket U. Kinuta hole! The above-mentioned axis q is inserted into jO.

One arm of the contact lever (see contact lever) is provided with a long hole, and the tip of the other arm is a contact portion.

This @contact part S faces the end J/ of the ratchet as shown in Fig. As shown in FIG.
J/ can be operated in the direction of the arrow (see Figure 1 O again), and SS is an outer opening lever, which is generally made of a roughly triangular plate as shown in Figure ii.
A hole SO is provided at one apex of this plate, and the pivot shaft <<, r is inserted into the outside of this hole.Thus, the outer release lever 33 is coaxial with the support plate ~ together with the contact lever. It means that it is pivoted to the center. A long hole jj is formed on one side of the front end of the outer release lever 53 in a direction toward the end of the hole.

There is also an opening on the other side of the tip! 4 is formed.

This opening j4 basically consists of a long hole portion 34m formed in the direction toward the end of the hole, and an enlarged hole portion stb extending laterally from the long hole portion 34m. Outside release lever j
,? The spring receiver is located at the tip end of j7. Connecting link connecting portion 31. > and abutting portions are formed.

The outer handle H is attached to the connecting part sl of the outer release lever jJ.
The distal end of the connecting link l connected to a (FIG. 1) is pivotally connected with an idler pipe as shown in FIG. Moreover, one end Aha of the spring U shown in FIG. 1 is engaged with the portion j7 of the spring receiver, and the other end ωb is in contact with the fixed side of the locking device as will be described later. Therefore, due to this spring ulc, the outer release lever j3 has a tendency to rotate clockwise in the same figure.
It becomes. The action of this bending part 4/ will be described later. The contact part S de is 1 normally in contact with the arm of the contact lever 7. The opening j4 has the same size as the elongated hole part 34-, and usually has an anvil at one position>1), and the interlocking pin base 3 is inserted into the elongated hole part tAm into these elongated holes j. This interlocking bin jJii
The 0 interlocking pin 43 having the head 40 for preventing removal is
As shown in the figure, 5Il is attached to the tip of the locking link t≦.
! It is set up. This link 16, including its pin base 3, is entirely made of synthetic resin.

The function of the locking link 44 will be described later, but in any case, this link 46 is movable in its longitudinal direction and is not in the unlocked position shown in FIGS. 2, 1O, etc. , the interlocking pin 43 is connected to the enlarged hole portion sb of the opening S4.
b Make sure that the long hole 3/''h- and the long hole part 3 are not facing each other.
It is installed at the tip side position of 4m.

According to the above configuration, when the external handle Ho is operated, the connecting link l is set to the first link, as in the case of the known example! Alumni and 1st O
Since it moves downward in the direction indicated by the EK arrow, the outer release lever j3 is rotated counterclockwise by the pivot wheel against the force of the spring V.

At this time, since the interlocking pin 43 is at the 7H position on the distal end side as shown in FIGS.
4C7, the lever Hiroshi 7 rotates in the same counterclockwise direction, and the contact lever presses the ratchet R in the direction of the arrow in FIG. 7, and the ratchet R rotates to the position shown at 1111FIIl. So, Lovechi I, t is Striker S
The door lock device is released by the operation of the outer handle Ho, and the door lock device K is released by the inner handle H1, so that the door can be opened.

Referring to Figure 10, 61 is an inner opening lever, and this lever is pivotally connected to the support plate 2 by the pivot 111.The shape of the inner opening lever 4I is shown in Figure 11. P, 70 There is a hole 4D at the base end, and the pivot q is inserted into this hole 4D so that it can be removed from 0 or more.

The contact lever, the outer release lever jJ>, and the inner release lever 4t are pivotally connected to the support plate radius of the plaque U by a common single pivot I. Like this Jf
Pivoting the lever tube of type I with a single pivot is advantageous in that it simplifies the structure and facilitates manufacturing. The inner release lever 11 has a connecting part 70° and an abutting part 71 at its tip to the connecting link connected to the inner handle H1.The connecting direction of the connecting link to the zero connecting link 70 is shown in FIG. As shown in Figure 10, the side edge of the inner release lever 41 on the connecting portion 70 side is shaped so as to come into contact with the receiving portion 73 protruding from the support plate Q. Also, the inner release lever is 4g! ! *117/ is designed to come into contact with the interlocking pin 7j. At the tip of the interlocking pin 7j, as shown in Figure 1/, there is a head 76 for preventing removal.

The interlocking pin 73 that prevents the interlocking pin from escaping from the elongated hole SS into which it is inserted forms a part of a child proof device to be described later.

Usually, as shown in FIG. 70, the hole is located at the tip of the long hole SS. The interlocking pin 7j contacts the abutting portion 7 only when it is at this tip position (as shown in Fig. 10) by the force of the outer opening lever V, and is given the habit of always rotating clockwise. Due to this rotational force, the interlocking pin 7j presses the contact portion 71 to the right as shown in FIG. 11 clockwise rotation.

This is prevented by the side edge coming into contact with the receiving part 73.

On the other hand, the contact lever II7 is also affected by the rotational force of the outer release lever 3J via the contact portion sr of the outer release lever jJ, but the contact lever υ; If you use the above configuration, which cannot rotate clockwise, and operate the inner part,
The connecting link λ is pulled to the left in FIG. 3, and the spring 4 in FIG.
The contact portion 71 rotates the outer release lever ring in the same direction via the interlocking pin 7jt, so that the operation of the outer handlebar described above is performed. Contact lever reference 7% same direction as in case K11
1, press the end 31 of the ratchet R, and the latch Lt releases the striker S. As above, rotate the outer release lever ring or the inner release lever 4I to open the contact lever. However, it is possible to release the locking device from the outside or inside of the car door.

Locks and locks for locking or unlocking locking devices
A child-proof mechanism is provided as described below to prevent the unlocking mechanism and the locking device from being released due to manipulation of the inner handle by a child inside the vehicle.

First, the locking/unlocking mechanism will be explained.◎In the unlocked position shown in No. 1 O'lA, the interlocking pin 4J described above transfers its rotational force to the contact lever reference 7 when the outer release lever jJ rotates counterclockwise. to enable the locking device to be released. However, the interlocking pin 43 is pivoted along the elongated hole 1/ and the elongated hole portion 34a along the axis q.
When the interlocking pin 43 is displaced to the end of the opening S4, the interlocking pin 43 takes a position corresponding to the enlarged hole portion stb of the opening S4.In this state, the outer release lever 3J is moved counterclockwise. When the interlocking pin 43 is rotated to the enlarged hole portion st b
The counterclockwise rotation of the outer release lever 33 becomes electrodynamic, and no rotational force is transmitted to the interlocking pin 13, so that the contact lever 33 does not rotate.

Release of the locking device therefore cannot occur and a locked condition occurs.

To be able to obtain such a locked state,
The interlocking pin 43 is integrally provided with the locking link 6, as already explained with reference to FIG. As shown in FIGS. 1 and 2, these four links are provided behind the outer release lever 33 and at the end opposite to the interlocking pin 43.

This pin V is equipped with a pivot pin L shown in FIG. At the same time, a pivot 8 is inserted into the pin hole n of the lock/unlock lever U whose end opposite to the pin hole n is the operating end, and this pivot n is connected to the receiving portion of the bracket 416. The lock/unlock lever I is inserted into the hole V of the protrusion at the tip of 73 and caulked.
/ will be rotatably supported in the state shown in Figure 1.O 1/ As shown in Figure 2 and Figure 1-1, the lock and
A recess O having seven pairs of contact parts 19°l is provided at the upper edge of the central part of the unlock lever l/, and the distal end protrusion of the receiving part 73 engages within this recess O. From O where the mating protrusion l is located, the lock/unlock lever t/ is rotatable between one end position where any of the collision parts n collides with the engagement protrusion. Below the pin to of the locking link 44, @/J
As shown in WJIC, the chevron-shaped bent portion 41 of the end portion oh of the spring V is engaged. Therefore, when the lock/unlock lever 1/ is rotationally displaced between λ end positions,
In the middle, the pin to has to overcome the mountain of the chevron-shaped bent part t/, and as a result, the movement of the lock-unlock creper 1/ has a degree of strength. Lock 7 /<-1/ is in the unlocked position after turning one clockwise to the final position, and the interlocking pin 4J is in the position corresponding to Fig. 10. 1/ in Fig. 1-K> and rotate it counterclockwise. As a result, the pin V is pulled almost to the right, the entire locking link 64 is displaced almost to the right, and the linking pin at its tip is a long hole! t/> and is displaced toward the pivot shaft 4ct within the elongated hole portion 34a, and a locked state is obtained. Due to the occurrence of this locked state, the mouth...
To rotate the lock/unlock lever l/, connect the connecting link connected to the sill knob N to the lock/unlock lever.
Connect to the operating end of 1/ as shown in Figure 1.

By pressing the cylinder knob N, the cylinder pin 2 is pulled to the left as shown in the figure.
As already explained, the interlocking pin 7! is in the position shown in FIG.
However, it is dangerous if a child is inside the car and tampers with the inner handle III, causing the inner release lever 11 to rotate and the door to open. It is conventional practice to provide a knob for operating the childproof mechanism in a difficult position, but when the knob is operated, the interlocking pin 73 descends to the lower end along the elongated hole. There is. When the interlocking pin 7j descends, the inner release lever 4#
Even if it is rotated counterclockwise in the EIO diagram, the contact portion 7/ cannot act on the interlocking pin 73, and therefore does not interlock with the outer release lever sJ# and the inner release lever 41, - Release of the locking device does not occur.

The interlocking pin 7j is integrally provided at the upper end of the interlocking link octopus, as shown in FIG. 2 ν and FIG.

Link octopus is pin 7! It is also made of synthetic resin. Pin PJ is one arm of the child proof operation lever stop! The central part of the lever SS is pivotally connected to the support plate 4I4IIC by a pivot passing through the hole and the hole in the support plate section of the bracket. A knob is provided on the other arm 700 of the lever 94A, and this knob is adapted to protrude inward toward the inside of the door. Kono Mami 1
When lever 94c is rotated clockwise with 0/,
The interlocking pin 7j descends inside the elongated hole via the link octopus.◎In order to moderate the rotation of the lever 9hiro, the surface opposite to the pin 77 at the lower end of the interlocking link octopus has a medium spherical shape. A protrusion is formed so that the protrusion elastically engages with one of the pair of recesses 10 formed on the surface of the support [4114]. These recesses iocohole PrK
They are placed equidistant from each other. Link 9
As described above, the protrusions are made of synthetic resin and are somewhat elastically deformable, so the protrusions also deform elastically when engaged with the recesses 10 and maintain their positions after being engaged.

Therefore, an affiliated link? The interlocking pin 73 at the upper end of J is.

The interlocking positions shown in Figures 2 and 70 and the long holes! j
When held in any of the non-interlocking positions at the lower end of t, and K
◎ As described above with respect to the embodiments, in the present invention, the members directly belonging to the door lock device main body are as follows.

With only latches and ratchets, all other control mechanism parts are supported by the support plate of the bracket, which is fixed to the outside of the main body, so after attaching all the parts of the control mechanism to the support plate, attach the bracket to the All assembly work is completed by simply fixing to the outside surface, simplifying one assembly process. Also.

With such a structure, force is transmitted to only one point due to three-dimensional direction change, resulting in a mechanically stable structure, fewer problems with assembly accuracy, and an overall compact arrangement. In the present invention, force is transmitted from the inner opening lever supported by the support plate to the outer release lever also supported by the support plate by an interlocking pin that can be displaced by a childproof mechanism. Since the ratchet is operated through the abutting part by the displacement of the outer release lever, by operating the childproof mechanism and displacing the interlocking pin to the non-interlocking position, it is possible to prevent the inner release lever from being accidentally opened by a child. Even if it is rotated, it will only move and the outer release lever will not be displaced.
This is achieved by reliably preventing release of the zero lock device. Furthermore, in one aspect of the present invention, when transmitting force 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 zero rotation force of the outer release lever.

[Brief explanation of drawings]

FIG. 7 is an explanatory diagram of a conventional example showing the relationship between a door lock device and operating parts such as a handle and a sill knob. Figure 1 is a view seen in the ■-■ line direction of Figure 1, Figure 3 is wc
Figure 1 is an enlarged view of the main parts of Figure 1, and Figure 3 is a view seen in the direction of the arrow ■ in Figure 3. Figure 2 is a side view of the door lock device according to the present invention, viewed from the direction corresponding to Figure 3. Fig. 7 is a view seen in the direction of the arrow ■ in Fig. 5, Fig. 7 is a view showing Fig. 2 with the locking device base removed, and Fig. 7 is a view showing Fig. 7 in the released state. Figure 1 is a perspective view of the door lock device of the present invention, and Figure io is a perspective view showing only the control mechanism of the door lock device shown in Figure 1 with some members removed. 1/Figure is an exploded perspective view of the door lock device control mechanism.
Fig. 1 is a perspective view showing the control mechanism with some of its members removed and cut away. OL...Door lock device, Ll... Door lock device main body. L! ...Lock device control mechanism, Lt...Latch,
R...Ratchet, B...Striker, N...Sill knob, :w...Base, ν...Cover plate,
Co...Striker guide groove, Q...Bracket,
...Support plate, 7...Contact lever, q...Pivot, 5/...hole, J...contact part,! t3...
Outside - Release lever, SS...Slong hole, 3T...Opening,
34 m...Long hole part, Audience b...Enlarged hole part, ω・
...Spring, 4/...Spring V's Yamagata Ysa Iku, AJ.
... Interlocking pin, 44... Locking link, 41
...inner release lever, 7/...contact part. 7j-1% moving pin, to... pivot pin, I/...
Lock/unlock lever, L de... contact part, butto...
・Engagement origin, octopus... linkage, delimitation... child proof operation. 10/...Tsumi0 Applicant's agent Kiyoshi Nagisa Figure 3 Figure 4 ↓ Figure 5'j'4

Claims (1)

[Scope of Claims] / A main body having a nut striper guide groove, and a striker engaging recess that is displaceably supported inside the main body at a position within the striker guide groove and substantially traverses the striper guide groove. In the automobile door lock device, the control mechanism (Lx) includes a latch, a ratchet that engages with the latch to prevent displacement of the latch in the release direction, and a control mechanism that controls the movement of the ratchet. Main body (I
, l) K fixed 1 and then rising support I [(N)t-
A lever device (≠
7°! 92, 41), this lever device is connected to an outer open lever (#) that is rotatably displaceable by being connected to an outer hand #CH6), and an outer open lever (#) that is connected to an inner handle (CH6).
It has an inner release lever (11) of 1w/IIR position.The inner information release lever (11) transfers its rotational force to the interlocking pin (7
j) to the outer release lever (SS), while the outer release lever (jJ
) (R)K directly acts to give displacement in the latch release direction to the ratchet (R) according to the circumferential movement of )!
! A contact 11 (U) is provided on the lever device (Hiroshi 7. Gen, 4#), and the interlocking pin (7j) transmits the rotational force of the internal release lever (41) to the outside @Release lever (Gen) K. A door lock device that is said to be able to be freely moved to a position where it is not locked by a child-proof mechanism (lever).A long hole (#) is provided in the outside release lever (phantom), and an interlocking pin (7j) is inserted into the long hole. is displaceable along the elongated hole, and is attached to the inner information release lever (61) so that the interlocking pin contacts the interlocking pin when it is at one end of the elongated hole, and does not imitate the interlocking pin when it is at the other end. The interlocking bottle holder ()/) is installed in the 11ff section 1 of the 11ff door, and the interlocking kln ('u)tm is placed in a child-proof 11 willow, interlocking pin. It is composed of a link (tl) having a tl at one end, and an operating lever (tl) with one end of the arm pivoted to the other end of the link (tl) and a support plate (tl). 41. The door lock device according to claim II, claim 7 or m2.