JP3906131B2 - Door lock device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door lock device used in a vehicle, and more specifically, a lock mechanism that switches between an unlocked state and a locked state is housed inside a housing, and a key is operated by key operation from the outside of the housing. The present invention relates to an improvement of a door lock device including an operation input unit that transmits rotation of a cylinder as a rotational driving force to a lock mechanism.
[0002]
[Prior art]
In a vehicle such as a four-wheeled vehicle, a door lock device is generally provided between an outside handle provided on a door and a latch mechanism. The latch mechanism usually includes a latch and a ratchet, and when the door is closed with respect to the vehicle body, the striker on the vehicle body side is engaged and held by the latch, and the latched and striker is engaged by the ratchet. By holding, the door is kept closed with respect to the vehicle body. The door lock device is provided with a lock mechanism that switches between an unlocked state and a locked state by a key operation of a key cylinder provided on the outdoor side of the door or an inside lock button provided on the indoor side of the door. The lock mechanism and the key cylinder and the lock mechanism and the inside lock button are linked to each other by linkage means such as a link or a wire.
[0003]
When the door lock device is unlocked, the door opening operation by the outside handle is validated and transmitted to the ratchet, and when the ratchet is engaged with the latch, the ratchet is engaged with the latch. It works to release. As a result, the meshing state of the latch and the striker is also released, and the door can be opened with respect to the vehicle body.
[0004]
On the other hand, when the door lock device is in the locked state, the door opening operation by the outside handle is invalidated and is not transmitted to the ratchet. As a result, even when the outside handle is operated, the latch and the striker are held in an engaged state, and the vehicle can be locked.
[0005]
[Problems to be solved by the invention]
By the way, according to the door lock device in which the key cylinder and the lock mechanism are linked to each other by the linkage means as described above, the linkage means is newly configured even when the position of the key cylinder with respect to the lock mechanism is changed. You can respond by doing. Therefore, for example, a common door lock device can be used for vehicles having different key cylinder positions, which is advantageous in terms of versatility.
[0006]
However, in the door lock device, for example, when a malicious person inserts a foreign object through the gap between the door and the glass and directly operates the connecting means or the connecting portion between the locking mechanism and the connecting means, the locking mechanism There is a risk of switching from the locked state to the unlocked state. That is, it is disadvantageous in terms of anti-theft.
[0007]
Therefore, in recent years, a lock mechanism is housed inside the housing, and a door lock device provided with an operation input unit that transmits the rotation of the key cylinder by a key operation from the outside of the housing to the lock mechanism as a rotational driving force is also provided. Has been. As the operation input section, an input shaft member that engages with the tip of the key rod is provided at a portion facing the key rod extending from the key cylinder, and a key lever that transmits the rotation of the input shaft member to the lock mechanism is provided. The thing is common (for example, refer patent document 1).
[0008]
According to such a door lock device, the key rod that rotates about its own axis is only exposed to the outside during the period from the key cylinder to the lock mechanism, which is extremely advantageous in terms of the above-described anti-theft property. .
[0009]
However, for vehicles having different key cylinder positions, a dedicated door lock device having an operation input unit at a position corresponding to the key cylinder is required, which is disadvantageous in terms of versatility. In particular, the housing that houses the lock mechanism is generally constructed by molding a synthetic resin, and since it is a relatively large structure, when this is dedicated, It becomes a factor which increases manufacturing cost remarkably.
[0010]
[Patent Document 1]
JP 2002-147084 A
[0011]
In view of the above circumstances, an object of the present invention is to provide a door lock device capable of improving versatility and reducing the manufacturing cost and improving the anti-theft property.
[0012]
[Means for Solving the Problems]
The door lock device according to claim 1 of the present invention enables a door-opening operation by a handle when the door is unlocked, and disables the door-opening operation by the handle when the door is locked. And a housing housing the lock mechanism therein, and transmitting the rotation of the key cylinder by a key operation from the outside of the housing to the lock mechanism as a rotational driving force, so that the lock mechanism is in an unlocked state and a locked state. A door lock device including an operation input unit for switching is characterized in that a housing portion is provided in the housing for selectively arranging the operation input unit at a plurality of different positions.
[0013]
Further, the door lock device according to claim 2 of the present invention is the door lock device according to claim 1, wherein the operation input portion is disposed so as to be rotatable around its own axis with respect to each position of the storage portion. An input shaft member that accepts rotation of the key cylinder as a rotational driving force, and a plurality of engaging portions for selectively engaging the input shaft member corresponding to each position of the housing portion, And a key lever that swings as the input shaft member rotates.
[0014]
A door lock device according to a third aspect of the present invention is the door lock device according to the first aspect, wherein the lock mechanism is unlocked and locked when the door lock device is detachable from the housing portion and disposed at each position of the housing portion. When switching to the state The operation amount is the same and the shape is different A plurality of operation input portions are prepared, and the plurality of operation input portions are alternatively arranged in the housing portion of the housing.
[0015]
According to a fourth aspect of the present invention, there is provided the door lock device according to any one of the first to third aspects, wherein the lock mechanism is unlocked from the locked state when the open mechanism is operated by the inside handle. It is characterized by switching to a state.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Exemplary embodiments of a door lock device according to the present invention will be explained below in detail with reference to the accompanying drawings.
[0017]
(Embodiment 1)
1 to 4 show a door lock device according to Embodiment 1 of the present invention. The door lock device illustrated here is provided between the outside handle 1 and the latch mechanism 20 in the side door of the front hinge arranged on the right side of the front seat of the four-wheeled vehicle (the door D on the driver's seat in the case of a right-hand drive vehicle). The main case 2 and the sub case 3 are provided. The main case 2 and the sub case 3 are formed of, for example, a synthetic resin, and are joined to each other and then fastened to each other by fastening means (not shown) such as screws to constitute the housing 10. In addition, the O-ring 4 is interposed in the joint surface of the main case 2 and the subcase 3, and the desired watertightness is ensured (refer FIG. 8).
[0018]
The housing 10 constituted by the main case 2 and the sub case 3 includes a latch mechanism accommodating portion 11 extending along the left-right direction of the door D and a door from an end portion of the latch mechanism accommodating portion 11 located on the indoor side. And a lock mechanism housing portion 12 extending along the front-rear direction of D, and is substantially L-shaped when viewed from above.
[0019]
The latch mechanism accommodating portion 11 has a horizontal cutout groove 13 extending substantially horizontally from the indoor side to the outdoor side at a position that is substantially in the center in the height direction. Is housed in.
[0020]
Like the conventional one, the latch mechanism 20 is for holding the striker S provided on the vehicle body side of the four-wheeled vehicle, and includes a latch 21 and a ratchet 22 as shown in FIG. It is.
[0021]
The latch 21 is rotatably disposed at a position above the horizontal cutout groove 13 of the latch mechanism housing portion 11 via a latch shaft 23 extending substantially horizontally along the front-rear direction of the vehicle body. And have a meshing groove 21a, a hook portion 21b, and a locking portion 21c.
[0022]
The engagement groove 21 a is formed from the outer peripheral surface of the latch 21 toward the latch shaft 23, and has a width that can accommodate the striker S.
[0023]
The hook portion 21b is a portion located on the indoor side of the engagement groove 21a when the engagement groove 21a is opened downward. As shown in FIG. 5C, the hook portion 21b stops at a position crossing the horizontal cutout groove 13 of the latch mechanism housing portion 11 when the latch 21 is rotated counterclockwise (latch position). As shown in FIG. 5A, when the latch 21 is rotated clockwise, it is configured to stop at the position where the horizontal notch 13 is opened (open position).
[0024]
The locking portion 21c is a portion located on the outdoor side of the engagement groove 21a when the engagement groove 21a is opened downward. As shown in FIG. 5 (a), the locking portion 21c crosses the horizontal notch groove 13 when the latch 21 is rotated clockwise, and is directed toward the back (outdoor) of the horizontal notch groove 13. It is configured to stop in a state of gradually inclining upward. Although not clearly shown in the figure, a latch spring is provided between the latch 21 and the latch mechanism accommodating portion 11 to urge the latch 21 in the clockwise direction in FIG.
[0025]
The ratchet 22 is interposed via a ratchet shaft 24 extending substantially horizontally along the front-rear direction of the vehicle body at a position below the horizontal cutout groove 13 of the latch mechanism housing portion 11 and on the indoor side of the latch shaft 23. And has an engaging part 22a and an action part 22b.
[0026]
The engaging portion 22a is a portion extending radially outward from the ratchet shaft 24 toward the outdoor side, and when the ratchet 22 rotates counterclockwise in FIG. It is possible to engage with the hook portion 21b and the locking portion 21c.
[0027]
The action portion 22b is a portion that extends radially outward from the ratchet shaft 24 toward the indoor side. The ratchet 22 is provided with a ratchet lever 25 that rotates integrally with the ratchet shaft 24 around the axis of the ratchet shaft 24 at a position on the front side of the vehicle. The ratchet bar 25 has a contact portion 25 a extending from the ratchet shaft 24 in the same direction as the action portion 22 b of the ratchet 22, and is connected to the ratchet 22 by a connecting pin 26. Further, although not shown in the drawing, a ratchet spring is provided between the ratchet 22 and the latch mechanism accommodating portion 11 to urge the ratchet 22 always counterclockwise in FIG.
[0028]
In the latch mechanism 20 configured as described above, when the door D is in an open state with respect to the vehicle body, the latch 21 is disposed at the open position as shown in FIG. When the door D is closed from this state, the striker S provided on the vehicle body main body enters the horizontal cutout groove 13 of the latch mechanism housing portion 11 and eventually the striker S comes into contact with the locking portion 21c of the latch 21. Become. As a result, the latch 21 rotates counterclockwise in FIG. 5 against the elastic force of the latch spring (not shown). During this time, the ratchet 22 is such that the protruding end surface of the engaging portion 22a is in sliding contact with the outer peripheral surface of the latch 21 due to the elastic force of the ratchet spring (not shown), and the ratchet shaft is appropriately selected according to the outer peripheral surface shape of the latch 21. Rotate around 24 axes.
[0029]
When the door D is further closed from the above-described state, the amount of the striker S entering the horizontal notch groove 13 gradually increases, so that the latch 21 further rotates counterclockwise, as shown in FIG. 5B. Eventually, the engaging portion 22a of the ratchet 22 reaches the meshing groove 21a of the latch 21. In this state, the locking portion 21c of the latch 21 comes into contact with the engaging portion 22a of the ratchet 22, so that the latch 21 rotates clockwise against the elastic restoring force of a latch spring (not shown). Will be blocked. In addition, since the hook portion 21b of the latch 21 is arranged so as to cross the horizontal cutout groove 13, the striker S moves in a direction away from the horizontal cutout groove 13 by the hook portion 21b, that is, the door D with respect to the vehicle body. The opening operation is prevented (half latch state).
[0030]
When the door D is further closed from the half-latch state described above, the striker S entering the horizontal cutout groove 13 further rotates the latch 21 counterclockwise via the locking portion 21c, and the striker S is moved to the horizontal cutout groove. 13 depths (outside of the room). During this time, the ratchet 22 rotates clockwise in FIG. 5 against the elastic force of the ratchet spring (not shown) by the hook portion 21b of the latch 21 coming into contact with the upper surface of the engaging portion 22a. When the hook portion 21b passes, it immediately rotates counterclockwise by the elastic restoring force of a ratchet spring (not shown). As a result, as shown in FIG. 5 (c), the hook portion 21b of the latch 21 comes into contact with the engaging portion 22a of the ratchet 22, and therefore the elastic spring is against the elastic restoring force of the latch spring (not shown). The clockwise rotation of the latch 21 is prevented. Even in this state, since the hook portion 21b of the latch 21 is arranged so as to cross the horizontal cutout groove 13, the striker S is moved by the hook portion 21b in a direction in which the striker S is detached from the back side (outdoor) of the horizontal cutout groove 13. The situation is blocked, and eventually the door D is kept closed with respect to the vehicle body (full latch state).
[0031]
Further, when the action portion 22b of the ratchet 22 or the contact portion 25a of the ratchet lever 25 is rotated upward in FIG. 5 against the elastic force of the ratchet spring (not shown) from the above-described full latch state, The contact engagement state between the hook portion 21b and the engagement portion 22a of the ratchet 22 is released, and the latch 21 rotates clockwise in FIG. 5 by the elastic restoring force of a latch spring (not shown). As a result, as shown in FIG. 5A, the horizontal cutout groove 13 is opened, the striker S can move in the direction of detaching from the horizontal cutout groove 13, and the door D can be opened with respect to the vehicle body. become able to.
[0032]
On the other hand, as shown in FIGS. 1 to 3, an open lever 30, an inner handle lever 40, and a lock mechanism 500 are housed in the lock mechanism housing portion 12 of the housing 10.
[0033]
The open lever 30 is disposed at a position further lower than the ratchet 22 of the latch mechanism 20 through an open lever shaft 31 extending substantially horizontally along the front-rear direction of the vehicle body, It has an open action end 30a, an open operation end 30b, and a pressure receiving portion 30c.
[0034]
The open action end 30 a is a portion extending radially outward from the open lever shaft 31 toward the outdoor side, and the extended end protrudes outside the housing 10. An outside handle linking means 32 such as a link or a wire that links with the outside handle 1 provided on the door D is connected to a portion of the open action end 30 a that protrudes outside the housing 10. More specifically, the outside handle linking means 32 is connected so that the open lever 30 rotates counterclockwise in FIG. 1 when the outside handle 1 is operated to open the door.
[0035]
The open operation end portion 30 b is a portion extending radially outward from the open lever shaft 31 toward the indoor side, and the extended end portion is a region below the contact portion 25 a of the ratchet lever 25 inside the housing 10. Is located.
[0036]
The pressure receiving portion 30 c is a portion bent forward from the lower edge portion of the open lever 30 between the open operation end portion 30 b and the open lever shaft 31. Although not clearly shown in the figure, an open lever spring is provided between the open lever 30 and the lock mechanism housing portion 12 to constantly bias the open lever 30 clockwise in FIG.
[0037]
The inner handle lever 40 is disposed in the lower region of the open lever 30 so as to be swingable via an inner lever shaft 41 extending substantially horizontally along the left-right direction of the vehicle body. And a pressing portion 40b.
[0038]
The inner working end portion 40 a is a portion that extends downward from the inner lever shaft 41 toward the vehicle front side, and the extending end portion projects out of the housing 10. An inner handle linking means 42 such as a link or a wire that links with the inside handle 5 provided on the indoor side of the door D is connected to a portion of the inner working end portion 40a that protrudes outside the housing 10. . More specifically, the inside handle linking means 42 is connected so that the inner handle lever 40 swings clockwise in FIG. 3 when the inside handle 5 is operated to open the door.
[0039]
The pressing portion 40b is a portion that contacts and presses the pressure receiving portion 30c of the open lever 30 when the inner handle lever 40 is swung clockwise. Although not shown in the drawing, an inner lever spring is provided between the inner handle lever 40 and the lock mechanism housing portion 12 to constantly bias the inner handle lever 40 counterclockwise in FIG. It is.
[0040]
The lock mechanism 500 is in an unlocked state (see FIG. 3) in which the rotation operation of the open lever 30 due to the opening operation of the outside handle 1 is transmitted to the latch mechanism 20 and the opening lever 30 of the outside handle 1 due to the opening door operation. It is switched to a locked state (see FIG. 4) in which the rotation operation is not transmitted to the latch mechanism 20, and is locked to the surface facing the sub case 3 in the main case 2, that is, the surface covered by the sub case 3 in the main case 2. A lever 510, a worm wheel 520, a link lever 530, a connect lever 540, and a key sub lever 550 are provided.
[0041]
The lock lever 510 is disposed in a lateral region of the open operation end portion 30b of the open lever 30 via a lock lever shaft 511 extending substantially horizontally along the left-right direction of the vehicle body. A link connecting part 512, a button connecting part 513, and a driven gear part 514 are provided.
[0042]
The link connecting portion 512 is a portion extending radially outward from the lock lever shaft 511, and has a connecting pin 515 at the tip thereof, and is connected between the connecting pin 515 and the lock lever shaft 511. A concave groove 516 is provided. The connection pin 515 is a portion that extends substantially horizontally along the left-right direction of the vehicle main body from the surface located on the indoor side at the tip of the button connection portion 513. The connecting groove 516 is a long hole-like recess formed in the button connecting portion 513 on the surface located on the outdoor side.
[0043]
The button connecting portion 513 is a portion that extends in the radially outward direction from the lock lever shaft 511 in the direction opposite to the link connecting portion 512. A lock button link means 517 such as a link or a wire linked to the inside lock button 6 provided on the indoor side of the door D is connected to the button link portion 513. More specifically, when the inside lock button 6 is locked, the lock lever 510 rotates counterclockwise in FIG. 3, while when the inside lock button 6 is unlocked, the lock lever 510 is rotated as shown in FIG. The lock button link means 517 is connected so as to rotate clockwise.
[0044]
As shown in FIG. 6, the driven gear portion 514 is formed in a fan shape between the link connecting portion 512 and the button connecting portion 513 around the lock lever shaft 511, and a pair of outer teeth 514a, 514b, first passive teeth 514c and second passive teeth 514d. The pair of outer teeth 514a and 514b, the first passive teeth 514c, and the second passive teeth 514d are provided at three stages of different heights along the extending direction of the lock lever shaft 511. The pair of outer teeth 514a and 514b are provided on both sides of the driven gear portion 514, and are disposed at the position closest to the indoor side. The first passive teeth 514c are provided between the pair of outer teeth 514a and 514b and close to the one outer tooth 514a, and are disposed at an intermediate position along the extending direction of the lock lever shaft 511. It is. The second passive tooth 514d is provided at a position between the other outer tooth 514b and the first passive tooth 514c, and is disposed at a position that is the most outdoor side.
[0045]
The worm wheel 520 is disposed in a lateral region of the lock lever 510 so as to be rotatable via a worm shaft 521 extending substantially horizontally along the left-right direction of the vehicle body, and serves as an output shaft of the drive motor 560. It meshes with the secured worm 561. An intermittent gear 522 is fixed to the worm wheel 520 on the same axis. The intermittent gear 522 has a basic tooth 522a, a pair of first drive teeth 522b, and a pair of second drive teeth 522c, and a pair of outer teeth 514a, 514b and first passive teeth 514c provided on the driven gear portion 514. And the one-way power transmission means is comprised between 514d and the 2nd passive tooth. That is, the basic tooth 522a, the pair of first drive teeth 522b, and the pair of second drive teeth 522c of the intermittent gear 522 are a pair of outer teeth 514a, 514b, a first passive tooth 514c, and a second passive tooth of the driven gear portion 514. Similar to 514d, it is provided at three stages of different heights along the extending direction of the worm shaft 521, the basic teeth 522a mesh only with the outer teeth 514a and 514b, and the first drive teeth 522b Only the first passive tooth 514c meshes, and the second drive tooth 522c is configured to mesh only with the second passive tooth 514d. Although not explicitly shown in the figure, between the worm wheel 520 and the lock mechanism housing portion 12, a state in which the basic teeth 522 a of the intermittent gear 522 of the worm wheel 520 are directed toward the axis of the lock lever shaft 511 (hereinafter referred to as “the lock lever shaft 511”). A neutral return spring for maintaining the neutral state).
[0046]
In the power transmission means using the driven gear portion 514 and the intermittent gear 522, the lock lever 510 is counterclockwise from the position shown in FIG. 3 (hereinafter simply referred to as the unlock position) to the position shown in FIG. 4 (hereinafter simply referred to as the lock position). When rotated around, each tooth 514a, 514b, 514c, 514d of the driven gear portion 514 does not mesh with any tooth 522a, 522b, 522c of the intermittent gear 522, so the worm wheel 520 is not rotated. .
[0047]
Similarly, when the lock lever 510 is rotated clockwise from the lock position to the unlock position, the worm wheel 520 does not rotate.
[0048]
On the other hand, for example, when the worm wheel 520 is rotated clockwise from the state shown in FIG. 3, after the basic teeth 522a mesh with the outer teeth 514a, the first drive teeth 522b become the first passive teeth 514c. In addition, the second drive tooth 522c meshes with the second passive tooth 514d, and the lock lever 510 is rotated counterclockwise via the driven gear portion 514 to be displaced to the lock position. Become. Note that after the lock lever 510 is displaced from the unlock position to the lock position by the rotation of the worm wheel 520, the lock lever 510 can no longer be rotated by the intermittent gear 522, and a neutral return spring (not shown). Due to the elastic restoring force, the worm wheel 520 returns to the neutral state without rotating the lock lever 510.
[0049]
Similarly, when the worm wheel 520 is rotated counterclockwise from the state shown in FIG. 4, after the basic teeth 522a mesh with the outer teeth 514b, the second drive teeth 522c engage with the second passive teeth 514d. Further, the first drive teeth 522b mesh with the first passive teeth 514c, and the lock lever 510 is rotated clockwise via the driven gear portion 514 to be displaced to the unlock position. Note that after the lock lever 510 is displaced from the locked position to the unlocked position by the rotation of the worm wheel 520, the lock lever 510 can no longer be rotated by the intermittent gear 522, and a neutral return spring (not shown). Due to the elastic restoring force, the worm wheel 520 returns to the neutral state without rotating the lock lever 510.
[0050]
The link lever 530 has a mounting hole 531 at its base end, and can be moved up and down together with the open operation end 30b by inserting the open operation end 30b of the open lever 30 through the mounting hole 531. And it is supported so that it can rock | fluctuate around the shaft center along the left-right direction of a vehicle main body with respect to this open operation | movement end part 30b. The link lever 530 is provided with a lock lever connecting portion 532 and a ratchet driving portion 533.
[0051]
The lock lever connecting portion 532 is a portion extending radially outward with respect to the axial center of the mounting hole 531, and the connecting pin 515 of the lock lever 510 is passed through the connecting groove hole 534 formed in the extending end portion. By doing so, it is connected to the lock lever 510. Specifically, when the above-described lock lever 510 is disposed at the unlock position, as shown in FIG. 3, the lock lever connecting portion 532 of the link lever 530 extends substantially vertically upward, while the lock lever 510. , The link lever 530 swings counterclockwise, and as shown in FIG. 4, the lock lever connecting portion 532 is connected so as to extend obliquely upward to the left. .
[0052]
As shown in FIG. 3, the ratchet drive unit 533 is disposed in a region below the contact portion 25 a of the ratchet lever 25 when the lock lever 510 described above is disposed at the unlock position, while the lock lever 510 is disposed at the lock position. 4, as shown in FIG. 4, the ratchet lever 25 is a portion arranged at a position deviating from the lower region of the contact portion 25 a.
[0053]
The connect lever 540 is disposed on the upper part of the lock mechanism housing portion 12 so as to be swingable via a connect lever shaft 541 extending substantially horizontally along the left-right direction of the vehicle body. It is a part that extends toward The connecting lever 540 is provided with a connecting convex portion 542 and a switching pressure receiving portion 543. The connecting convex portion 542 is a cylindrical portion that protrudes substantially horizontally along the left-right direction of the vehicle main body from the surface located on the indoor side at the distal end portion of the connect lever 540, and the connecting concave groove of the lock lever 510 described above. 516 is attached. The switching pressure receiving portion 543 is a step portion formed on a surface located on the outdoor side at the base end portion of the connect lever 540, and includes two pressure receiving surfaces extending along the radial direction around the connect lever shaft 541. Have.
[0054]
The key sub lever 550 is disposed so as to be swingable via the above-described connect lever shaft 541 and extends upward from the connect lever shaft 541. The key sub-lever 550 is provided with a key lever connecting hole 551, a lock position switching projection 552, and an unlock position switching projection 553. The key lever connecting hole 551 is a long hole formed along the extending direction of the key sub lever 550 at the tip end portion of the key sub lever 550. The lock position switching projection 552 and the unlock position switching projection 553 are portions extending radially outward from the center of the connect lever shaft 541 at the base end of the key sub lever 550, respectively. The lock position switching projection 552 and the unlock position switching projection 553 are provided with the switching pressure receiving portion 543 of the connect lever 540 described above interposed therebetween.
[0055]
In the lock mechanism 500 configured as described above, when in the unlocked state shown in FIG. 3, as described above, the ratchet drive portion 533 of the link lever 530 is disposed in the lower region of the contact portion 25 a of the ratchet lever 25. The
[0056]
Accordingly, when the outside handle 1 is operated to open the door and the open lever 30 is rotated counterclockwise in FIG. 1, the ratchet driving unit 533 of the link lever 530 is moved in accordance with the upward movement of the open operation end 30b. The contact portion 25a of the lever 25 is moved upward, the contact engagement state between the hook portion 21b of the latch 21 and the engagement portion 22a of the ratchet 22 is released, and the door D is opened with respect to the vehicle body. To be able to.
[0057]
In the meantime, when the lock mechanism 500 is in the unlocked state, the door D can be opened with respect to the vehicle main body by the opening operation of the inside handle 5. That is, when the inside handle 5 is operated to open the door, the inner handle lever 40 swings clockwise in FIG. 3, and the pressing portion 40 b presses the pressure receiving portion 30 c of the open lever 30. 1 is rotated counterclockwise, and the abutting engagement state between the hook portion 21b of the latch 21 and the engaging portion 22a of the ratchet 22 can be released in the same manner as described above.
[0058]
When the key sub lever 550 is swung clockwise as indicated by a two-dot chain line in FIG. 3 from this unlocked state, the lock position switching protrusion 552 of the key sub lever 550 causes the switching pressure receiving pressure of the connect lever 540 to be changed. The portion 543 is pressed, and the connect lever 540 is swung clockwise. When the connect lever 540 swings clockwise, the lock lever 510 connected via the connecting convex portion 542 and the connecting concave groove 516 rotates counterclockwise, and further, as the lock lever 510 rotates. As a result, the link lever 530 swings counterclockwise, and the lock mechanism 500 enters the locked state shown in FIG.
[0059]
In this locked state, even when the outside handle 1 is operated to open the door and the open lever 30 is rotated counterclockwise in FIG. 1, the ratchet drive portion 533 of the link lever 530 and the ratchet lever 25 are in contact with each other. The portions 25a do not contact each other, and the contact engagement state between the hook portion 21b of the latch 21 and the engagement portion 22a of the ratchet 22 is not released. As a result, the door D is held in a closed state with respect to the vehicle body, and the vehicle can be locked.
[0060]
In the lock mechanism 500 applied in the first embodiment, when the lock mechanism 500 is in the locked state, the door D is held in the closed state with respect to the vehicle main body even when the inside handle 5 is opened. However, when the inner handle lever 40 swings clockwise in FIG. 3 as the inside handle 5 is opened, the lock mechanism 500 returns to the unlocked state by swinging the inner handle lever 40. A so-called one-motion function may be applied. When the lock mechanism having the one-motion function is applied, even if the lock mechanism is in the locked state, if the inner handle lever 40 is operated to open the door, the lock mechanism is returned to the unlocked state, and then the latch 21 is hooked. The contact engagement state between the portion 21b and the engagement portion 22a of the ratchet 22 can be released.
[0061]
Further, regarding the transition from the unlocked state shown in FIG. 3 to the locked state shown in FIG. 4, it is not necessarily limited to the swinging of the key sub lever 550, and when the worm wheel 520 is rotated clockwise by the drive motor 560, Alternatively, it can be performed in any case where the lock lever 510 is directly rotated counterclockwise by operating the inside lock button 6.
[0062]
When the key sub lever 550 is swung counterclockwise from the above-described locked state, as shown by a two-dot chain line in FIG. 4, the unlock position switching protrusion 553 of the key sub lever 550 switches the connect lever 540. The pressure receiving portion 543 is pressed, and the connect lever 540 is swung counterclockwise. When the connect lever 540 swings counterclockwise, the lock lever 510 connected via the connecting convex portion 542 and the connecting concave groove 516 rotates clockwise. Further, as the lock lever 510 rotates. As a result, the link lever 530 swings clockwise, and the lock mechanism 500 enters the unlocked state shown in FIG.
[0063]
Note that the transition from the unlocked state shown in FIG. 4 to the locked state shown in FIG. 3 is not necessarily limited to the swinging of the key sub lever 550, but when the worm wheel 520 is rotated counterclockwise by the drive motor 560. Alternatively, the operation can be performed in any case where the lock lever 510 is directly rotated clockwise by the operation of the inside lock button 6.
[0064]
On the other hand, the door lock device includes a key lever unit 570 at a position that is an extended extension region of the key sub lever 550 in the lock mechanism housing portion 12. The key lever unit 570 serves as an operation input unit from the key cylinder KC provided on the door D, and includes an input shaft member 5710, a key lever 5720, and a cap 5730 as shown in FIG.
[0065]
The input shaft member 5710 is a portion for engaging the key rod KR extending from the key cylinder KC, and a base portion 5711, a fitting portion 5712, and a shaft portion 5713 are integrally formed. The base 5711 has a stepped columnar shape with a narrow upper end and a thick base end, and has a mounting hole 5714 for mounting the key rod KR at the axial center. The mounting hole 5714 is a bottomed hole opened at the distal end surface of the base portion 5711. For example, when the distal end portion of the key rod KR is formed in a cross shape, the cross section is formed in a cross shape so as to be fitted therein. Is formed. The fitting portion 5712 is a rectangular portion and is provided on the base end surface of the base portion 5711. Positioning protrusions 5715 are provided on both side surfaces of the fitting portion 5712, respectively. Each of the protrusions 5715 is a protrusion that extends along the axis of the base portion 5711 and has a rectangular column shape with a uniform cross section. The shaft portion 5713 is a portion having a columnar shape with a diameter smaller than that of the base portion 5711, and is provided on the lower surface of the fitting portion 5712 so as to be on the same axis as the base portion 5711.
[0066]
The key lever 5720 has a connecting shaft portion 5721 and a selective fitting hole 5722. The connecting shaft portion 5721 has a cylindrical shape having an outer diameter that can be mounted in the key lever connecting hole 551 of the key sub lever 550, and protrudes from the upper surface of the tip end portion of the key lever 5720. The selective fitting hole 5722 is a rectangular long hole provided in the base end portion of the key lever 5720, and has a length that allows the fitting portions 5712 of the input shaft member 5710 described above to be attached at three different positions. is doing. In the selective fitting hole 5722, rectangular positioning notches 5723 corresponding to the protrusions 5715 are formed at respective positions where the fitting portions 5712 of the input shaft member 5710 are attached.
[0067]
The cap 5730 is an oblong lid for closing the switching long hole 7 of the main case 2 described later. In the first embodiment, two types of caps 5730 are prepared. That is, a first cap 5730A having a fitting hole 5731 at the center of the oval and a second cap 5730B having a fitting hole 5731 at one end of the oval are prepared. Each fitting hole 5731 is formed in a size capable of fitting the small diameter portion of the base portion 5711 of the input shaft member 5710 described above. Each cap 5730 is provided with O-rings 5732 and 5733 at portions that are the contact portion with the main case 2 and the contact portion with the input shaft member 5710 (see FIG. 8).
[0068]
In the lock mechanism housing portion 12 of the housing 10, the switching lever hole 7 and the shaft portion selection hole 8 are provided in a manner facing each other as the housing portion in the portion where the above-described key lever unit 570 is mounted. As shown in FIGS. 3 and 4, the switching long hole 7 has a long hole shape along the extending direction of the key sub lever 550. When viewed from the outdoor side, as shown in FIG. The main case 2 is formed so as to be gradually inclined downward from the vehicle rear side toward the vehicle front side. As shown in FIG. 7, the shaft portion selection hole 8 fits the shaft portion 5713 of the input shaft member 5710 at three different positions, and supports the input shaft member 5710 so as to be rotatable at the respective fitting positions. It is a bottomed hole that can be formed, and is formed in the sub case 3 in a mode along the extending direction of the switching long hole 7.
[0069]
For example, as shown in FIGS. 7 and 8A, the key lever unit 570 described above has a fitting portion 5712 of the input shaft member 5710 at a position closest to the connecting shaft portion 5721 in the selective fitting hole 5722 of the key lever 5720. , The shaft portion 5713 of the input shaft member 5710 is fitted to the position closest to the key sub lever 550 in the shaft portion selecting hole 8 of the sub case 3 and the connecting shaft portion 5721 is fitted to the key sub lever 550. By inserting the key lever connecting hole 551, the operation input unit of the lock mechanism 500 is obtained. Further, the lower end of the base portion 5711 of the input shaft member 5710 is fitted into the fitting hole 5731 of the second cap 5730B, and the second cap 5730B is attached to the switching slot 7 of the main case 2. This ensures the desired water tightness of the housing 10.
[0070]
In the lock mechanism 500 shown in FIG. 7 and FIG. 8A, if the key rod KR of the key cylinder KC is mounted in the mounting hole 5714 of the input shaft member 5710, the rotation of the key cylinder KC by the key operation causes the input shaft member 5710 to rotate. Then, the rotation of the input shaft member 5710 is transmitted to the key sub-lever 550 as a swing of the key lever 5720 about the axis of the input shaft member 5710. Therefore, the lock mechanism 500 can be switched between the unlocked state and the locked state by rotating the key cylinder KC in a desired direction by a key operation.
[0071]
Similarly, as shown in FIG. 8 (b), after the fitting portion 5712 of the input shaft member 5710 is mounted at the intermediate position in the selective fitting hole 5722 of the key lever 5720, the shaft portion of the input shaft member 5710 is inserted. 5713 is fitted in the middle position in the shaft portion selecting hole 8 of the sub case 3 and the connecting shaft portion 5721 is inserted into the key lever connecting hole 551 of the key sub lever 550 or as shown in FIG. As shown, after the fitting portion 5712 of the input shaft member 5710 is mounted at the position farthest from the connecting shaft portion 5721 in the selective fitting hole 5722 of the key lever 5720, the shaft portion 5713 of the input shaft member 5710 is attached to the sub case 3 as shown in FIG. The shaft portion selection hole 8 is fitted to a position farthest from the key sub lever 550 and the connecting shaft portion 5721 is fitted to the key sub lever 550. Even when the key lever unit 570 is inserted into the key lever connecting hole 551, the key lever unit 570 serves as an operation input unit of the lock mechanism 500, and the lock mechanism 500 can be switched between the unlocked state and the locked state by the rotation of the key cylinder KC by the key operation. It becomes possible. However, when the key lever unit 570 is used in the state shown in FIG. 8B, the first cap 5730A is applied, and when used in the state shown in FIG. By applying the second cap 5730B, the desired water tightness is ensured in the housing 10 as in the case of using in the state shown in FIG.
[0072]
Here, according to the door lock device configured as described above, the lock mechanism 500 and the key lever unit 570 serving as the operation input unit of the lock mechanism 500 are accommodated in the housing 10, and the key lever KC is moved from the key cylinder KC to the key lever. Since the key rod KR that rotates about its own axis is only exposed to the outside before reaching the unit 570 and the lock mechanism 500, it is extremely advantageous in terms of anti-theft.
[0073]
In addition, even a vehicle in which the position of the key cylinder KC is different from each other can be dealt with by rearranging the key lever unit 570 into any one of FIGS. 8A to 8C, that is, the key cylinder. For a vehicle with a relatively low KC position, the key lever unit 570 is used in the state shown in FIG. 8A, and for a vehicle with a relatively high key cylinder KC position, the key lever unit 570 is used. When the vehicle is used in the state shown in FIG. 8C and the position of the key cylinder KC is at an intermediate height between them, the key lever unit 570 is used in the state shown in FIG. 8B. Therefore, it is not necessary to prepare a dedicated door lock device for each. For this reason, it becomes very advantageous also in terms of versatility, and it becomes possible to reduce the manufacturing cost of the door lock device and further the manufacturing cost of the vehicle to which the door lock device is applied.
[0074]
In the first embodiment described above, the key lever unit 570 is illustrated as an operation input unit that is arranged at a plurality of different positions with respect to the housing 10 by performing attachment / detachment operations on the housing 10. For example, if the operation input part is slidably arranged with respect to the housing part of the housing 10, it can be arranged at a plurality of different positions without requiring an attaching / detaching operation.
[0075]
In the first embodiment described above, the key lever unit 570 is arranged at three different positions with respect to the housing 10, but the arrangement position of the key lever unit 570 does not necessarily have to be three positions. There may be two positions, or of course four or more positions.
[0076]
Further, in the first embodiment described above, the height and front / rear position of the key lever unit 570 are changed with respect to the housing 10, but only the height may be changed, or only the front / rear position. May be changed.
[0077]
Furthermore, in Embodiment 1 mentioned above, although the door D of a four-wheeled vehicle is illustrated as an application object of a door lock apparatus, the door provided in vehicles other than a four-wheeled vehicle may be sufficient. Further, the present invention can be applied not only to the door provided on the side surface of the vehicle but also to the rear door. Further, the door may not be a front hinge, and may be applied to a door that opens and closes in another manner, such as an upper hinge door, a rear hinge door, a lower hinge door, and a slide door.
[0078]
(Embodiment 2)
9 to 12 show a door lock device according to Embodiment 2 of the present invention. The door lock device illustrated here is provided between the outside handle 1 and the latch mechanism 20 in the side door D of the front hinge arranged on the right side of the front seat of the four-wheeled vehicle, as in the first embodiment. Thus, only the configuration of the lock mechanism and the key lever unit is different from the first embodiment. Therefore, in the following, only the configuration of the lock mechanism and the key lever unit will be described in detail, and the same reference numerals are given to the same configurations as those in the first embodiment, and the detailed descriptions thereof will be omitted.
[0079]
As in the first embodiment, the lock mechanism 500 applied in the second embodiment includes an unlocked state in which the rotation operation of the open lever 30 caused by the opening door operation of the outside handle 1 is transmitted to the latch mechanism 20, and the outside handle. 1 is switched to a locked state in which the rotation operation of the open lever 30 due to the opening door operation 1 is not transmitted to the latch mechanism 20, but the lock lever 510 and the worm wheel 520 are disposed on the surface of the main case 2 facing the sub case 3. The link lever 530 and the connect lever 540 are provided. That is, the lock mechanism 500 according to the second embodiment does not include a key sub lever, but includes three key lever units 580A, 580B, and 580C, which will be described later, each including a key sub lever.
[0080]
The three sets of key lever units 580A, 580B, and 580C serve as operation input portions from the key cylinder KC provided on the door D, respectively, and input shaft key levers 5810A, 5810B, 5810C, caps 5820A, 5820B, and key sub-lever 5830A. , 5830B. Of these, the input shaft key levers 5810A, 5810B, and 5810C are individually prepared for the key lever units 580A, 580B, and 580C, while the caps 5820A and 5820B and the key sub levers 5830A and 5830B are provided in three sets. Two key lever units 580A, 580B, and 580C are provided.
[0081]
The three input shaft key levers 5810A, 5810B, 5810C are portions for engaging the key rod KR extending from the key cylinder KC, respectively, and the base portions 5811A, 5811B, 5811C, the shaft portions 5812A, 5812B, 5812C, and the key lever portion 5813A. , 5813B and 5813C are integrally formed. The bases 5811A, 5811B, and 5811C have a stepped columnar shape with a narrow upper end and a thick base end, and mounting holes 5814A, 5814B, and 5814C for mounting the key rod KR to the axial center. have. The mounting holes 5814A, 5814B, and 5814C are bottomed holes that are opened at the front end surfaces of the base portions 5811A, 5811B, and 5811C. For example, when the front end portion of the key rod KR is formed in a cross shape, the mounting holes 5814A, 5814B, and 5814C The cross section is formed in a cross shape. The shaft portions 5812A, 5812B, and 5812C are portions having a columnar shape with a diameter smaller than that of the base portions 5811A, 5811B, and 5811C, and the base portions 5811A, 5811B, and 5811C are in the same axial center as the base portions 5811A, 5811B, and 5811C. It is provided on the lower surface. The key lever portions 5813A, 5813B, and 5813C are portions extending radially outward from the peripheral surfaces of the base end portions of the base portions 5811A, 5811B, and 5811C, and have connecting shaft portions 5815A, 5815B, and 5815C at the front end portions. Yes. The connecting shaft portions 5815A, 5815B, and 5815C are formed in a columnar shape, and project from the upper surfaces of the tip end portions of the key lever portions 5813A, 5813B, and 5813C.
[0082]
The three input shaft key levers 5810A, 5810B, and 5810C having the above-described configuration have the base portions 5811A, 5811B, and 5811C and the shaft portions 5812A, 5812B, and 5812C having the same dimensions, while the base portions 5811A, 5811B, and 5811C. And the connecting shaft portions 5815A, 5815B, and 5815C are configured such that the distances between the shaft centers are different from each other. In the following description, the first input shaft key lever 5810A, the second input shaft key lever 5810B, and the third input shaft key lever in order from the one having the smaller distance between the shaft centers of the base portions 5811A, 5811B, 5811C and the connecting shaft portions 5815A, 5815B, 5815C. This will be referred to as 5810C as appropriate.
[0083]
FIG. 13 is an explanatory diagram showing the relationship between the lengths of the three input shaft key levers 5810A, 5810B, and 5810C. Now, in the shaft portion selection hole 8 provided in the sub case 3, the pitches of the respective fitting positions are set to P1 and P2 in order from the closest to the connect lever shaft 541, and the connect lever shaft 541 and the shaft portion selection hole 8 are connected. Assuming that the center-to-axis distance between the fitting position closest to the lever shaft 541 is C, the base portions 5811A and 583A of the first input shaft key lever 5810A, the second input shaft key lever 5810B, and the third input shaft key lever 5810C, respectively. The distances L1, L2, and L3 between the shaft centers of 5811B and 5811C and the connecting shaft portions 5815A, 5815B, and 5815C are set to satisfy the following expressions (1) and (2), respectively.
L2 = {(C + P1) / C} L1 (1)
L3 = {(C + P1 + P2) / C} L1 (2)
[0084]
As shown in FIGS. 9 to 12, the caps 5820 </ b> A and 5820 </ b> B are oblong lids for closing the switching long holes 7 of the main case 2, and the fitting holes are positioned at the center of the long circle. A first cap 5820A having 5821A and a second cap 5820B having a fitting hole 5821B at one end of an oval are prepared. Respective fitting holes 5821A and 5821B are formed in such a size that the small diameter portions of the bases 5811A, 5811B and 5811C of the input shaft key levers 5810A, 5810B and 5810C described above can be fitted. Each of the caps 5820A and 5820B is provided with O-rings 5822 and 5823 at portions to be contact portions with the main case 2 and contact portions with the input shaft key levers 5810A, 5810B and 5810C. (See FIG. 13).
[0085]
The key sub levers 5830A and 5830B are swingably disposed via the connect lever shaft 541, and extend upward from the connect lever shaft 541. The first key sub lever 5830A has a small length. And a second key sub-lever 5830B having a large length. Each of the key sub levers 5830A and 5830B is provided with key lever connecting holes 5831A and 5831B, locking position switching projections 5832A and 5832B, and unlocking position switching projections 5833A and 5833B, respectively. The key lever connecting holes 5831A and 5831B are long holes formed along the extending direction of the key sub levers 5830A and 5830B at the tip ends of the key sub levers 5830A and 5830B. Lock position switching projections 5832A and 5832B and unlock position switching projections 5833A and 5833B are portions extending radially outward from the center of the connect lever shaft 541 at the base ends of the key sub levers 5830A and 5830B, respectively. The lock position switching protrusions 5832A and 5832B and the unlock position switching protrusions 5833A and 5833B are provided with the switching pressure receiving portion 543 of the connect lever 540 described above interposed therebetween.
[0086]
The key lever units 580A, 580B, and 580C described above, for example, connect the shaft portion 5812A of the first input shaft key lever 5810A most in the shaft portion selecting hole 8 of the sub case 3, as shown in FIGS. The first key sub-lever 5830A is swingably supported on the connect lever shaft 541, and the connecting shaft portion 5815A of the first input shaft key lever 5810A is connected to the first key sub-lever. The key lever unit 580A serves as an operation input unit of the lock mechanism 500 by being inserted through the key lever connection hole 5831A of the 5830A. Further, the upper end of the base 5811A of the first input shaft key lever 5810A is fitted into the fitting hole 5821B of the second cap 5820B, and the second cap 5820B is inserted into the switching slot 7 of the main case 2. By mounting, desired water tightness is secured to the housing 10.
[0087]
In the lock mechanism 500 shown in FIGS. 9 and 12A, if the key rod KR of the key cylinder KC is mounted in the mounting hole 5814A of the first input shaft key lever 5810A, the rotation of the key cylinder KC by the key operation is the first. The input shaft key lever 5810A is input as rotation, and the swing of the key lever portion 5813A due to the rotation of the first input shaft key lever 5810A is transmitted to the first key sub lever 5830A, and the lock position of the first key sub lever 5830A is transmitted. The connect lever 540 swings through the switching protrusion 5832A or the unlock position switching protrusion 5833A. Therefore, the lock mechanism 500 can be switched between the unlocked state and the locked state by rotating the key cylinder KC in a desired direction by a key operation.
[0088]
Similarly, as shown in FIG. 12 (b), the shaft portion 5812B of the second input shaft key lever 5810B is fitted in the middle position in the shaft portion selection hole 8 of the sub case 3, and the first key sub lever When 5830A is swingably supported on the connect lever shaft 541 and the connecting shaft portion 5815B of the second input shaft key lever 5810B is inserted into the key lever connecting hole 5831A of the first key sub lever 5830A, or FIG. As shown in FIG. 5, the shaft portion 5812C of the third input shaft key lever 5810C is fitted to the position farthest from the connect lever shaft 541 in the shaft portion selection hole 8 of the sub case 3, and the second key sub lever 5830B is connected. The lever shaft 541 is swingably supported, and further the connecting shaft portion 5815 of the third input shaft key lever 5810C. Is inserted into the key lever connecting hole 5831B of the second key sub-lever 5830B, the key lever units 580B and 580C serve as operation input portions of the lock mechanism 500, and the lock mechanism 500 is rotated by the key cylinder KC by key operation. Can be switched between an unlocked state and a locked state. However, when the key lever unit 580B is used in the state shown in FIG. 12B, the first cap 5820A is applied, and when the key lever unit 580C is used in the state shown in FIG. By applying the second cap 5820B rotated by 180 °, the desired water tightness is ensured in the housing 10 as in the case of using in the state shown in FIG.
[0089]
Here, according to the door lock device configured as described above, the lock mechanism 500 and the key lever units 580A, 580B, and 580C serving as the operation input unit of the lock mechanism 500 are accommodated inside the housing 10, and the key cylinder Since the key rod KR that rotates about its own axis is only exposed to the outside from the KC to the key lever units 580A, 580B, 580C and the lock mechanism 500, it is extremely advantageous in terms of antitheft performance. .
[0090]
In addition, vehicles with different key cylinder KC positions can be dealt with by appropriately selecting the key lever units 580A, 580B, and 580C and rearranging them into any one of FIGS. 12 (a) to 12 (c). Therefore, that is, for a vehicle having a relatively low position of the key cylinder KC, the key lever unit 580A is used in the state shown in FIG. 12A, and for a vehicle having a relatively high position of the key cylinder KC. For the vehicle in which the key lever unit 580C is used in the state shown in FIG. 12C and the position of the key cylinder KC is at an intermediate height, the key lever unit 580B is used as shown in FIG. Therefore, it is not necessary to prepare a dedicated door lock device for each. For this reason, it becomes very advantageous also in terms of versatility, and it becomes possible to reduce the manufacturing cost of the door lock device and further the manufacturing cost of the vehicle to which the door lock device is applied.
[0091]
Further, since the lengths of the three input shaft key levers 5810A, 5810B, and 5810C are set so as to satisfy the above equations (1) and (2) as the key lever units 580A, 580B, and 580C, the position of the key cylinder KC is set. Accordingly, even when the key lever units 580A, 580B, and 580C are changed, the operation amount of the key cylinder KC is the same without changing.
[0092]
In the second embodiment described above, the operation input unit is arranged at three different positions with respect to the housing 10, but the arrangement position of the operation input unit does not necessarily have to be three positions, and two positions. Of course, four or more positions may be used.
[0093]
Moreover, in Embodiment 2 mentioned above, although the height and front-back position of the operation input part are changed with respect to the housing 10, you may make it change only height or only front-back position. You may make it change.
[0094]
Furthermore, in Embodiment 2 mentioned above, although the door D of a four-wheeled vehicle is illustrated as an application object of a door lock apparatus, the door provided in vehicles other than a four-wheeled vehicle may be sufficient. Of course, the present invention can be applied not only to the door D provided on the side surface of the vehicle but also to the rear door. Further, the door may not be a front hinge, and may be applied to a door that opens and closes in another manner, such as an upper hinge door, a rear hinge door, a lower hinge door, and a slide door.
[0095]
【The invention's effect】
As described above, according to the door lock device of the present invention, the lock mechanism and the operation input unit are accommodated in the housing, which is extremely advantageous in terms of the anti-theft property. Moreover, it is possible to cope with vehicles having different key cylinder positions by selecting a receiving portion provided in the housing without requiring a dedicated door lock device, which is extremely advantageous in terms of versatility. The manufacturing cost of the door lock device and the manufacturing cost of the vehicle to which the door lock device is applied can be reduced.
[Brief description of the drawings]
FIG. 1 is a view of a door lock device according to a first embodiment of the present invention as viewed from the front side of a vehicle.
FIG. 2 is a view of the door lock device shown in FIG. 1 as viewed from the outdoor side.
3 is a view showing an unlocked state of a lock mechanism in the door lock device shown in FIG. 1. FIG.
4 is a view showing a lock state of a lock mechanism in the door lock device shown in FIG. 1. FIG.
FIGS. 5A to 5C are conceptual diagrams showing the operation of the latch mechanism. FIGS.
FIG. 6 is an enlarged view of a part of the lock mechanism.
FIG. 7 is an exploded perspective view of a key lever unit serving as an operation input unit.
8A to 8C are cross-sectional views of the key lever unit shown in FIG.
FIG. 9 is a diagram showing a first mode of a lock mechanism in the door lock device according to the second embodiment of the present invention.
FIG. 10 is a diagram showing a second mode of the lock mechanism in the door lock device according to the second embodiment of the present invention.
FIG. 11 is a diagram showing a third mode of the lock mechanism in the door lock device according to the second embodiment of the present invention.
12A to 12C are cross-sectional views showing a key lever unit according to a second embodiment.
FIG. 13 is a diagram for explaining the relationship between the lengths of the key lever unit components shown in FIGS. 9 to 11;
[Explanation of symbols]
1 Outside handle
2 Main case
3 secondary cases
4 O-ring
5 Inside handle
6 Inside lock button
7 Long hole for switching
8 Shaft selection hole
10 Housing
11 Latch mechanism housing
12 Locking mechanism housing
13 Horizontal notch
20 Latch mechanism
21 Latch
21a Meshing groove
21b Hook part
21c Locking part
22 Ratchet
22a Engagement part
22b Action part
23 Latch shaft
24 Ratchet shaft
25 Ratchet lever
25a Contact part
30 Open lever
30a Open action end
30b Open operation end
30c pressure receiving part
31 Open lever shaft
32 Outside handle linkage means
40 Inner handle lever
40a Inner working end
40b Pressing part
41 Inner lever shaft
42 Inside handle linkage means
500 Lock mechanism
510 Lock lever
511 Lock lever shaft
512 Link connection
513 Button connection part
514 Driven gear section
514a, 514b outer teeth
514c first passive tooth
514d Second passive tooth
515 Connecting pin
516 Groove for connection
517 Lock button link means
520 Worm wheel
521 Worm shaft
522 Intermittent gear
522a basic teeth
522b First drive tooth
522c second drive tooth
530 Link lever
531 Mounting hole
532 Lock lever connection
533 ratchet drive
534 Slot for connection
540 Connect lever
541 Connect lever shaft
542 Convex projection
543 Pressure-receiving part for switching
550 Key sub lever
551 Key lever connection hole
552 Lock position switching protrusion
553 Unlock position switching protrusion
560 drive motor
561 Warm
570 Key lever unit
5710 Input shaft member
5711 base
5712 Fitting part
5713 Shaft
5714 mounting hole
5715
5720 Key lever
5721 Connecting shaft
5722 Selective fitting hole
5723 Notch for positioning
5730A 1st cap
5730B Second Cap
5731 Insertion hole
5732, 5733 O-ring
580A, 580B, 580C Key lever unit
5810A, 5810B, 5810C Input shaft key lever
5811A, 5811B, 5811C Base
5812A, 5812B, 5812C Shaft
5813A, 5813B, 5813C Key lever part
5814A, 5814B, 5814C Mounting hole
5815A, 5815B, 5815C Connecting shaft
5820A, 5820B Cap
5821A, 5821B Fitting hole
5822, 5823 O-ring
5830A, 5830B Key sub-lever
5831A, 5831B Key lever connection hole
5832A, 5832B Lock position switching protrusion
5833A, 5833B Unlock position switching protrusion
D door
KC Key cylinder
KR key rod
S striker

Claims (4)

A lock mechanism that enables the open door operation with the handle when unlocked, while disabling the open door operation with the handle when in the locked state;
A housing containing the lock mechanism therein;
In a door lock device comprising: an operation input unit that transmits rotation of a key cylinder by a key operation from the outside of the housing to the lock mechanism as a rotational driving force, and switches the lock mechanism between an unlocked state and a locked state;
A door lock device, wherein the housing is provided with an accommodating portion for selectively disposing the operation input portion at a plurality of different positions. The operation input unit includes:
An input shaft member that is rotatably arranged about its own axis center with respect to each position of the housing portion, and receives the rotation of the key cylinder as a rotational driving force;
A key lever having a plurality of engaging portions for selectively engaging the input shaft member corresponding to each position of the housing portion, and swinging as the input shaft member rotates. The door lock device according to claim 1. Operation input units having the same operation amount and different shapes when switching the lock mechanism between the unlocked state and the locked state when the lock mechanism is detachable from the storage unit and disposed at each position of the storage unit. The door lock device according to claim 1, wherein a plurality of operation input portions are prepared and the plurality of operation input portions are alternatively arranged in the housing portion of the housing.   The door lock device according to any one of claims 1 to 3, wherein the lock mechanism is switched from a locked state to an unlocked state when the door is opened by an inside handle.

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