JP2004100310A - Door lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the versatility of a door lock device while reducing its manufacturing cost and enhancing its anti-theft property. <P>SOLUTION: The door lock device includes: a lock mechanism 500 which validates the operation of opening a door using an outside handle 1 when the door is unlocked and transmits the operation to a rachet 22 to disengage the ratchet 22 from a latch 21 if the ratchet 22 has been engaged with the latch 21, and which invalidates the operation of opening the door using the outside handle 1 when the door is locked; a housing 10 accommodating the lock mechanism 500; and an operation input part by which the rotation of a key cylinder KC caused by a key operation performed from outside the housing 10 is transmitted to the lock mechanism 500 as a rotational driving force to switch the lock mechanism 500 between an unlocked state and a locked state. The housing 10 is provided with a storage part for alternatively disposing the operation input part in a plurality of different positions. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device used for a vehicle, and more particularly, to 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 outside the housing. The present invention relates to an improvement in a door lock device including an operation input unit for transmitting rotation of a cylinder as a rotational driving force to a lock mechanism.
[0002]
[Prior art]
In vehicles such as four-wheeled vehicles, 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.When the door is closed with respect to the vehicle body, the latch engages and holds the striker on the vehicle body side, and further, the ratchet changes the engagement state between the latch and the striker. By holding the door, the door is kept closed with respect to the vehicle body. The door lock device includes a lock mechanism that switches between an unlocked state and a locked state by a key operation of a key cylinder provided on the outside of the door or an inside lock button provided on the inside 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 linking means such as links and wires.
[0003]
When the door lock device is unlocked, the door opening operation by the outside handle is enabled and transmitted to the ratchet, and when the ratchet is engaged with the latch, the engagement state of the ratchet with respect to the latch is enabled. Function to cancel. As a result, the engagement state between 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 link means as described above, the link means is newly constructed even when the position of the key cylinder with respect to the lock mechanism is changed. Can respond. 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 above door lock device, for example, when a malicious person inserts a foreign object from the gap between the door and the glass and directly operates the linking means or the connecting portion between the locking mechanism and the linking means, the lock mechanism is not operated. There is a risk of switching from the locked state to the unlocked state. That is, it is disadvantageous in terms of antitheft property.
[0007]
For this reason, in recent years, there has been provided a door lock device including an operation input unit that accommodates a lock mechanism inside a housing and transmits the rotation of a key cylinder by a key operation from the outside of the housing to the lock mechanism as a rotational driving force. Have been. As the operation input unit, 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. Is common (for example, see Patent Document 1).
[0008]
According to such a door lock device, since the key rod that rotates around its own axis is only exposed to the outside from the key cylinder to the lock mechanism, it is extremely advantageous in terms of the antitheft property described above. .
[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 for accommodating the lock mechanism is generally formed by molding a synthetic resin, and is a relatively large structure. This is a factor that significantly increases the manufacturing cost.
[0010]
[Patent Document 1]
JP 2002-170884 A
[0011]
The present invention has been made in view of the above circumstances, and has as its object to provide a door lock device capable of improving versatility, reducing manufacturing cost, and improving anti-theft property.
[0012]
[Means for Solving the Problems]
The lock mechanism according to claim 1 of the present invention enables a door opening operation by a handle when unlocked, and disables a door opening operation by a handle when locked. Transmitting a 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 setting the lock mechanism in an unlocked state and a locked state. In a door lock device provided with a switching operation input unit, a housing is provided in the housing for selectively disposing the operation input unit at a plurality of different positions.
[0013]
In the door lock device according to a second aspect of the present invention, in the first aspect, the operation input unit is disposed so as to be rotatable around its own axis with respect to each position of the storage unit. An input shaft member that receives the 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; A key lever that swings with the rotation of the input shaft member.
[0014]
The 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 it is detachable from the housing portion and disposed at each position of the housing portion. A plurality of operation input units that have the same operation amount when switching to the state are prepared, and the plurality of operation input units are selectively disposed in the housing portion of the housing.
[0015]
According to a fourth aspect of the present invention, in the door lock device according to any one of the first to third aspects, when the lock mechanism is operated to open the door by the inside handle, the door is unlocked from the locked state. It is characterized by switching to a state.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a door lock device according to the present invention will be described in detail with reference to the accompanying drawings.
[0017]
(Embodiment 1)
1 to 4 show a door lock device according to a first embodiment of the present invention. The door lock device exemplified here is provided between an outside handle 1 and a latch mechanism 20 at a front hinge side door (a driver-side door D in a right-hand drive vehicle) disposed on the front right side of a front seat of a four-wheeled vehicle. The main case 2 and the sub case 3 are provided. The main case 2 and the sub case 3 are, for example, molded from synthetic resin. After being joined to each other, the housing 10 is formed by fastening each other by fastening means (not shown) such as screws. In addition, an O-ring 4 is interposed between the joining surfaces of the main case 2 and the sub case 3 to ensure desired water tightness (see 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 And a lock mechanism accommodating portion 12 extending along the front-rear direction of D, and has a substantially L-shape 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 substantially at the center in the height direction. Housed in.
[0020]
The latch mechanism 20 is for engaging and holding a striker S provided on the vehicle body side of the four-wheeled vehicle similarly to the conventional mechanism, and includes a latch 21 and a ratchet 22, as shown in FIG. I have.
[0021]
The latch 21 is rotatably disposed at a position above the horizontal notch groove 13 of the latch mechanism accommodating portion 11 via a latch shaft 23 extending substantially horizontally along the front-rear direction of the vehicle body. , A mating groove 21a, a hook portion 21b, and a locking portion 21c.
[0022]
The engagement groove 21a is formed from the outer peripheral surface of the latch 21 toward the latch shaft 23, and has a width capable of accommodating the striker S.
[0023]
The hook portion 21b is a portion that is located on the indoor side of the engagement groove 21a when the engagement groove 21a is opened downward. As shown in FIG. 5C, when the latch 21 is rotated counterclockwise, the hook portion 21b stops at a position crossing the horizontal cutout groove 13 of the latch mechanism housing portion 11 (latch position). As shown in FIG. 5A, when the latch 21 is rotated clockwise, the latch 21 is stopped at a position where the horizontal cutout groove 13 is opened (open position).
[0024]
The locking portion 21c is a portion that is located on the outdoor side of the engagement groove 21a when the engagement groove 21a is opened downward. As shown in FIG. 5A, when the latch 21 is rotated clockwise, the locking portion 21c traverses the horizontal cutout groove 13 and moves toward the back (outdoor side) of the horizontal cutout groove 13. It is configured to stop in a state of being gradually inclined upward. Although not explicitly shown in the drawing, a latch spring is provided between the latch 21 and the latch mechanism accommodating portion 11 to constantly bias the latch 21 clockwise in FIG.
[0025]
The ratchet 22 is provided at a position below the horizontal notch groove 13 of the latch mechanism accommodating portion 11 and on the indoor side with respect to the latch shaft 23 via a ratchet shaft 24 extending substantially horizontally along the front-rear direction of the vehicle body. It is arranged rotatably and has an engaging portion 22a and an action portion 22b.
[0026]
The engaging portion 22a is a portion that extends radially outward from the ratchet shaft 24 toward the outside of the room. When the ratchet 22 rotates counterclockwise in FIG. Can be engaged with the hook portion 21b and the locking portion 21c.
[0027]
The action portion 22b is a portion extending radially outward from the ratchet shaft 24 toward the indoor side. The ratchet 22 is provided with a ratchet lever 25 that is integrated with the ratchet 22 and rotates around the axis of the ratchet shaft 24 at a position on the vehicle front side. 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. Although not explicitly shown in the figure, a ratchet spring is provided between the ratchet 22 and the latch mechanism accommodating section 11 to constantly urge the ratchet 22 counterclockwise in FIG.
[0028]
In the latch mechanism 20 configured as described above, when the door D is in the open state with respect to the vehicle body, the latch 21 is arranged 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 enters the horizontal cutout groove 13 of the latch mechanism accommodating portion 11, and the striker S comes into contact with the locking portion 21 c 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 protruding end surface of the engaging portion 22a slides on the outer peripheral surface of the latch 21 by the elastic force of the ratchet spring (not shown), and the ratchet shaft is appropriately adjusted according to the outer peripheral surface shape of the latch 21. It rotates around 24 axes.
[0029]
When the door D is further closed from the state described above, 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 engagement portion 22a of the ratchet 22 reaches the engagement 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. Moreover, since the hook portion 21b of the latch 21 is disposed so as to cross the horizontal cutout groove 13, the hook 21b causes the striker S to move away from the horizontal cutout groove 13, that is, the door D with respect to the vehicle body. The opening operation is prevented (semi-latched state).
[0030]
When the door D is further closed from the above-mentioned half-latched state, the striker S entering the horizontal notch groove 13 further rotates the latch 21 counterclockwise through the locking portion 21c, and the striker S is moved to the horizontal notch groove. 13 to the back (outdoor). During this time, the ratchet 22 rotates clockwise in FIG. 5 against the elastic force of a ratchet spring (not shown) due to the hook 21b of the latch 21 abutting on the upper surface of the engaging portion 22a. When the hook 21b passes, the ratchet spring (not shown) immediately rotates counterclockwise due to the elastic restoring force. As a result, as shown in FIG. 5C, the hook portion 21b of the latch 21 comes into contact with the engaging portion 22a of the ratchet 22, so that the hook portion 21b resists the elastic restoring force of the latch spring (not shown). The clockwise rotation of the latch 21 is prevented. Even in this state, the hook 21b of the latch 21 is disposed so as to cross the horizontal cutout groove 13, so that the striker S moves in a direction in which the striker S is separated from the depth (outside of the room) of the horizontal cutout groove 13 by the hook 21b. As a result, 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 full latch state, the latch 21 The contact state between the hook portion 21b and the engaging portion 22a of the ratchet 22 is released, and the latch 21 rotates clockwise in FIG. 5 by the elastic restoring force of the latch spring (not shown). As a result, as shown in FIG. 5A, the horizontal notch groove 13 is opened, the striker S can move in a direction to separate from the horizontal notch groove 13, and the door D can be opened with respect to the vehicle body. become able to.
[0032]
On the other hand, the lock mechanism housing portion 12 of the housing 10 houses the open lever 30, the inner handle lever 40, and the lock mechanism 500, as shown in FIGS.
[0033]
The open lever 30 is rotatably disposed at a position below the ratchet 22 of the latch mechanism 20 via an open lever shaft 31 extending substantially horizontally along the front-rear direction of the vehicle body. It has an open working end 30a, an open operating end 30b and a pressure receiving part 30c.
[0034]
The open working end 30 a is a portion extending radially outward from the open lever shaft 31 toward the outside of the room, and the extending end protrudes outside the housing 10. An outside handle linking means 32 such as a link or a wire for linking with the outside handle 1 provided on the door D is connected to a portion of the open working end 30a protruding outside the housing 10. More specifically, the outside handle linking means 32 is connected so that when the outside handle 1 is opened, the open lever 30 rotates counterclockwise in FIG.
[0035]
The open operation end portion 30b is a portion that extends radially outward from the open lever shaft 31 toward the indoor side, and the extended end portion of the open operation end portion 30b is located below the contact portion 25a of the ratchet lever 25 inside the housing 10. It is located in.
[0036]
The pressure receiving portion 30c is a portion bent forward from a lower edge of the open lever 30 between the open operation end portion 30b and the open lever shaft 31. Although not explicitly shown in the drawing, an open lever spring is provided between the open lever 30 and the lock mechanism accommodating section 12 to constantly bias the open lever 30 clockwise in FIG.
[0037]
The inner handle lever 40 is swingably disposed below the open lever 30 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 40a is a portion that extends downward from the inner lever shaft 41 toward the vehicle front side, and the extending end protrudes outside the housing 10. A portion of the inner working end portion 40a protruding to the outside of the housing 10 is connected to an inside handle linking means 42 such as a link or a wire for linking with the inside handle 5 provided on the indoor side of the door D. . More specifically, the inside handle linking means 42 is connected so that when the inside handle 5 is opened, the inner handle lever 40 swings clockwise in FIG.
[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 explicitly shown in the figure, an inner lever spring that constantly urges the inner handle lever 40 counterclockwise in FIG. 1 is provided between the inner handle lever 40 and the lock mechanism housing 12. It is.
[0040]
The lock mechanism 500 transmits an unlocking 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 (see FIG. 3). The lock is switched to a lock state (see FIG. 4) in which the rotation operation is not transmitted to the latch mechanism 20. 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 rotatably disposed in a side 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. It has a link connection part 512, a button connection part 513, and a driven gear part 514.
[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 a distal end thereof, and a connecting pin between the connecting pin 515 and the lock lever shaft 511. It has a concave groove 516. The connection pin 515 is a portion that extends substantially horizontally along the left-right direction of the vehicle body from a surface located on the indoor side at the tip end of the button connection portion 513. The connecting concave groove 516 is a long hole-shaped concave formed on the surface of the button connecting portion 513 located on the outdoor side.
[0043]
The button connecting portion 513 is a portion extending radially outward from the lock lever shaft 511 in a direction opposite to the link connecting portion 512. A lock button linking means 517 such as a link or a wire for linking with the inside lock button 6 provided on the indoor side of the door D is connected to the button connecting portion 513. More specifically, when the inside lock button 6 is locked, the lock lever 510 rotates counterclockwise in FIG. 3, and when the inside lock button 6 is unlocked, the lock lever 510 is set to FIG. , A lock button linking 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 about the lock lever shaft 511, and has a pair of outer teeth 514a, 514b, a first passive tooth 514c and a second passive tooth 514d. The pair of outer teeth 514a, 514b, the first passive tooth 514c, and the second passive tooth 514d are provided at three different positions along the extending direction of the lock lever shaft 511, with different heights. The pair of outer teeth 514a and 514b are provided on both sides of the driven gear portion 514, and are disposed at a position closest to the indoor side. The first passive tooth 514c is provided at a position close to one outer tooth 514a between the pair of outer teeth 514a and 514b, and is disposed at an intermediate position along the extending direction of the lock lever shaft 511. I have. 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 the most outdoor position.
[0045]
The worm wheel 520 is rotatably disposed in a lateral area of the lock lever 510 via a worm shaft 521 extending substantially horizontally along the left-right direction of the vehicle body. It is engaged with the fixed worm 561. An intermittent gear 522 is fixed to the worm wheel 520 on the same axis. The intermittent gear 522 has basic teeth 522a, a pair of first driving teeth 522b, and a pair of second driving teeth 522c, and has a pair of outer teeth 514a, 514b provided on the driven gear 514, and a first passive tooth 514c. A one-way power transmission means is formed between the first and second passive teeth 514d. That is, the basic teeth 522a, the pair of first driving teeth 522b, and the pair of second driving teeth 522c of the intermittent gear 522 are formed of a pair of outer teeth 514a, 514b, a first passive tooth 514c, and a second passive tooth of the driven gear portion 514. Similarly to 514d, the worm shaft 521 is provided at three different positions along the extending direction of the worm shaft 521, the basic teeth 522a mesh only with the outer teeth 514a, 514b, and the first driving teeth 522b are The configuration is such that only the first passive tooth 514c meshes with the second driving tooth 522c and the second driving tooth 522c meshes only with the second passive tooth 514d. Although not explicitly shown in the drawing, a state in which the basic teeth 522a 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 worm wheel 520). , Simply referred to as a neutral state).
[0046]
In the power transmission means using the driven gear portion 514 and the intermittent gear 522, the lock lever 510 is moved counterclockwise from the position shown in FIG. 3 (hereinafter simply referred to as an unlock position) to the position shown in FIG. When the worm wheel 520 is rotated around, the teeth 514a, 514b, 514c, and 514d of the driven gear 514 do not mesh with any of the teeth 522a, 522b, and 522c of the intermittent gear 522, so that the worm wheel 520 is not rotated. .
[0047]
Similarly, when the lock lever 510 is rotated clockwise from the locked position to the unlocked 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 tooth 522a meshes with the outer tooth 514a, the first driving tooth 522b becomes the first passive tooth 514c. And the second drive tooth 522c meshes with the second passive tooth 514d, and the lock lever 510 is rotated counterclockwise via the driven gear 514 to be displaced to the lock position. Become. After the lock lever 510 is displaced from the unlock position to the lock position by 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) is used. The worm wheel 520 returns to the neutral state without rotating the lock lever 510 due to the elastic restoring force of.
[0049]
Similarly, when the worm wheel 520 is rotated counterclockwise from the state shown in FIG. 4, after the basic tooth 522a meshes with the outer tooth 514b, the second driving tooth 522c becomes the second passive tooth 514d. Then, the first drive tooth 522b meshes with the first passive tooth 514c, and the lock lever 510 is rotated clockwise via the driven gear 514 to be displaced to the unlock position. After the lock lever 510 is displaced from the lock position to the unlock 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) is used. The worm wheel 520 returns to the neutral state without rotating the lock lever 510 due to the elastic restoring force of.
[0050]
The link lever 530 has a mounting hole 531 at a base end thereof, and can be moved up and down together with the open operating end 30b by inserting the open operating end 30b of the open lever 30 through the mounting hole 531. Further, the open operation end portion 30b is supported so as to be able to swing around an axis along the left-right direction of the vehicle body. 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 axis of the mounting hole 531, and penetrates the connecting pin 515 of the lock lever 510 through a connecting groove 534 formed at the extending end thereof. By doing so, it is connected to the lock lever 510. Specifically, when the above-described lock lever 510 is arranged 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 When the lock lever 530 is disposed in the lock position, the link lever 530 swings counterclockwise, and as shown in FIG. 4, the lock lever connecting portion 532 is connected so as to extend diagonally upward to the left. .
[0052]
As shown in FIG. 3, when the above-described lock lever 510 is disposed in the unlock position, the ratchet drive unit 533 is disposed in a region below the contact part 25a of the ratchet lever 25, and moves the lock lever 510 to the lock position. In this case, as shown in FIG. 4, it is a portion that is arranged at a position deviating from a region below the contact portion 25a of the ratchet lever 25.
[0053]
The connect lever 540 is swingably disposed above the lock mechanism accommodating portion 12 via a connect lever shaft 541 that extends substantially horizontally along the left-right direction of the vehicle body, and is disposed below the connect lever shaft 541. It is a part extending toward. The connecting lever 540 is provided with a connecting convex portion 542 and a switching pressure receiving portion 543. The connection convex portion 542 is a columnar 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 of the connect lever 540, and the connection groove of the lock lever 510 described above. 516. The switching pressure receiving portion 543 is a step formed on a surface located on the outdoor side at the base end 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 a part that is swingably disposed 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 an elongated hole formed at the tip of the key sub lever 550 along the direction in which the key sub lever 550 extends. 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 locking position switching projection 552 and the unlock position switching projection 553 are provided with the switching pressure receiving portion 543 of the above-described connect lever 540 interposed therebetween.
[0055]
In the lock mechanism 500 configured as described above, when in the unlocked state illustrated in FIG. 3, the ratchet drive unit 533 of the link lever 530 is disposed in the lower area of the ratchet lever 25 below the contact part 25a as described above. You.
[0056]
Therefore, if the outside handle 1 is opened and the open lever 30 is rotated counterclockwise in FIG. 1, the ratchet drive unit 533 of the link lever 530 is ratcheted with the upward movement of the open operation end 30b. The contact portion 25a of the lever 25 is moved upward, the contact engagement 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. Will be able to do that.
[0057]
Incidentally, when the lock mechanism 500 is in the unlocked state, the door D can be opened with respect to the vehicle body also 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, whereby the open lever 30 is moved. In FIG. 1, the latch 21 is rotated counterclockwise, so that the contact and engagement between the hook 21 b of the latch 21 and the engagement 22 a of the ratchet 22 can be released in the same manner as described above.
[0058]
When the key sub-lever 550 is swung clockwise from the unlocked state, as shown by the two-dot chain line in FIG. 3, the lock position switching projection 552 of the key sub-lever 550 causes the switching pressure of the connect lever 540 to change. Pressing the portion 543 causes the connect lever 540 to swing 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. 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 opened and the open lever 30 is rotated counterclockwise in FIG. 1, the ratchet driving portion 533 of the link lever 530 is brought into contact with the ratchet lever 25. The portions 25a do not abut against each other, and the abutting engagement between the hook portion 21b of the latch 21 and the engaging 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 in the locked state, the door D is held in a closed state with respect to the vehicle body even by the opening operation of the inside handle 5. However, when the inner handle lever 40 swings clockwise in FIG. 3 with the opening operation of the inside handle 5, the lock mechanism 500 returns to the unlocked state by swinging the inner handle lever 40. A device having a so-called one-motion function may be applied. When the lock mechanism having the one-motion function is applied, if the inner handle lever 40 is operated to open the door even in the locked state, the lock mechanism is returned to the unlocked state, and the hook of the latch 21 is returned. The contact and engagement between the portion 21b and the engaging portion 22a of the ratchet 22 can be released.
[0061]
Further, the transition from the unlocked state shown in FIG. 3 to the locked state shown in FIG. 4 is not necessarily limited to the swing of the key sub-lever 550, and when the worm wheel 520 is rotated clockwise by the drive motor 560, Alternatively, the operation 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 projection 553 of the key sub-lever 550 causes the connection lever 540 to switch. The connection pressure lever 543 is pressed to swing the connect lever 540 counterclockwise. When the connect lever 540 swings counterclockwise, the lock lever 510 connected via the connecting protrusion 542 and the connecting groove 516 rotates clockwise, and the rotation of the lock lever 510 is accompanied by the rotation of the lock lever 510. 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, and the worm wheel 520 is rotated counterclockwise by the drive motor 560. , Or when the lock lever 510 is directly rotated clockwise by operating the inside lock button 6.
[0064]
On the other hand, the door lock device includes a key lever unit 570 at a position in the lock mechanism accommodating portion 12 where the key sub lever 550 extends. The key lever unit 570 serves as an operation input unit from a 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 a key rod KR extending from the key cylinder KC, and has a base 5711, a fitting portion 5712, and a shaft 5713 integrally formed. The base 5711 has a stepped cylindrical shape with a small diameter at the upper end and a large diameter at the base end, and has a mounting hole 5714 for mounting the key rod KR at the axial center thereof. 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 to fit the key rod KR. It is formed in. The fitting portion 5712 is a rectangular portion, and is provided on the base end surface of the base 5711. Protrusions 5715 for positioning are provided on both side surfaces of the fitting portion 5712, respectively. The protrusions 5715 are protrusions extending along the axis of the base 5711, and have a uniform rectangular cross section. The shaft portion 5713 is a column-shaped portion having a smaller diameter than 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 5721 and a selective fitting hole 5722. The connecting shaft portion 5721 is formed in a columnar shape having an outer diameter that can be attached to the key lever connecting hole 551 of the key sub-lever 550, and protrudes from the upper surface of the distal end of the key lever 5720. The selection fitting hole 5722 is a rectangular long hole provided at the base end of the key lever 5720, and has a length that allows the fitting portion 5712 of the input shaft member 5710 to be mounted at three different positions. are doing. In the selection fitting hole 5722, a rectangular positioning notch 5723 corresponding to the ridge 5715 is formed at each position where the fitting portion 5712 of the input shaft member 5710 is mounted.
[0067]
The cap 5730 is an oblong lid for closing a switching elongate 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 position of the long circle and a second cap 5730B having a fitting hole 5731 at one end of the long circle are prepared. Each of the fitting holes 5731 is formed to have a size capable of fitting the small-diameter portion of the base 5711 of the input shaft member 5710 described above. Each cap 5730 is provided with O-rings 5732 and 5733 at portions that become contact portions with the main case 2 and contact portions with the input shaft member 5710, respectively (see FIG. 8).
[0068]
In the portion where the above-mentioned key lever unit 570 is mounted in the lock mechanism accommodating portion 12 of the housing 10, an elongate switching hole 7 and a shaft portion selecting hole 8 are provided as an accommodating portion so as to face each other. 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, and 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 selecting holes 8 fit the shaft portions 5713 of the input shaft member 5710 at three different positions, and rotatably support the input shaft member 5710 at the respective fitting positions. It is a hole with a bottom that can be formed in the sub-case 3 along the direction in which the switching long hole 7 extends.
[0069]
The key lever unit 570 described above is, for example, as shown in FIGS. 7 and 8A, the fitting portion 5712 of the input shaft member 5710 at the position closest to the connecting shaft portion 5721 in the selection fitting hole 5722 of the key lever 5720. After fitting, 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 connected to the key sub lever 550. Is inserted into the key lever connection hole 551 of FIG. Further, the smaller-diameter upper end of the base 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 long hole 7 of the main case 2. Thereby, desired watertightness is ensured in the housing 10.
[0070]
In the lock mechanism 500 shown in FIGS. 7 and 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. , And 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, by rotating the key cylinder KC in a desired direction by a key operation, the lock mechanism 500 can be switched between the unlocked state and the locked state.
[0071]
Similarly, as shown in FIG. 8B, after the fitting portion 5712 of the input shaft member 5710 is mounted at a position intermediate between the selection fitting hole 5722 of the key lever 5720 and the shaft portion of the input shaft member 5710, 5713 is fitted into the intermediate position in the shaft selecting hole 8 of the sub case 3 and the connecting shaft 5721 is inserted through the key lever connecting hole 551 of the key sub-lever 550, or as shown in FIG. As shown in the figure, after the fitting portion 5712 of the input shaft member 5710 is attached to the position of the selection fitting hole 5722 of the key lever 5720 farthest from the connecting shaft portion 5721, the shaft portion 5713 of the input shaft member 5710 is attached to the sub-case 3. And the connecting shaft 5721 is connected to the key sub-lever 550 in the hole 8 for selecting the shaft. Also in the case where the lock mechanism 500 is inserted through the key lever connection hole 551, the key lever unit 570 serves as an operation input section 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. Will be 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 the key lever unit 570 is used in the state shown in FIG. By applying the second cap 5730B, desired watertightness is ensured in the housing 10 as in the case where the housing 10 is used 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 an operation input unit of the lock mechanism 500 are housed inside the housing 10, and the key lever K Since the key rod KR rotating around 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 antitheft property.
[0073]
In addition, it is possible to cope with vehicles in which the positions of the key cylinders KC are different from each other by rearranging the key lever unit 570 to any one of FIGS. 8A to 8C. The key lever unit 570 is used in the state shown in FIG. 8A for a vehicle having a relatively low KC position, and the key lever unit 570 is used for a vehicle having a relatively high key cylinder KC position. For a vehicle that is used in the state shown in FIG. 8C and in which the position of the key cylinder KC is at an intermediate height between them, by using the key lever unit 570 in the state shown in FIG. Since it is possible to correspond, it is not necessary to prepare a dedicated door lock device for each. For this reason, it is extremely advantageous in terms of versatility, and it is possible to reduce the manufacturing cost of the door lock device and further reduce the manufacturing cost of the vehicle to which the door lock device is applied.
[0074]
In the above-described first embodiment, the key lever unit 570 is illustrated as an operation input unit, which is disposed at a plurality of different positions with respect to the housing 10 by being attached to and detached from the housing 10. For example, if the operation input unit is slidably disposed with respect to the housing portion of the housing 10, it is possible to arrange the operation input unit at a plurality of different positions without the need for an attaching / detaching operation.
[0075]
Further, 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 is not necessarily required to be three positions. It may be two positions or four or more positions.
[0076]
Furthermore, in Embodiment 1 described above, the height and the front-back 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-back position may be changed. May be changed.
[0077]
Furthermore, in the first embodiment described above, the door D of the four-wheeled vehicle is illustrated as an application target of the door lock device, but a door provided in a vehicle other than the four-wheeled vehicle may be used. Further, the present invention is not limited to the door provided on the lateral surface of the vehicle, but is applicable to a rear door. Further, the present invention is not necessarily required to be a front hinge, and may be applied to a door that opens and closes in other manners, such as an upper hinge door, a rear hinge door, a lower hinge door, and a sliding door.
[0078]
(Embodiment 2)
9 to 12 show a door lock device according to a second embodiment of the present invention. The door lock device illustrated here is provided between the outside handle 1 and the latch mechanism 20 in the front hinge side door D arranged on the right side of the front seat of the four-wheeled vehicle, similarly to the first embodiment. Only the configuration of the lock mechanism and the key lever unit is different from that of the first embodiment. Therefore, hereinafter, only the configuration of the lock mechanism and the key lever unit will be described in detail, and the same configurations as those in the first embodiment will be denoted by the same reference numerals and detailed description thereof will be omitted.
[0079]
As in the first embodiment, the lock mechanism 500 applied in the second embodiment includes an unlock state 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 an outside handle. 1 is switched to a locked state in which the rotation of the open lever 30 due to the opening operation of the door 1 is not transmitted to the latch mechanism 20. The lock lever 510 and the worm wheel 520 are provided on the surface of the main case 2 facing the sub case 3. , A link lever 530 and a connect lever 540. That is, the lock mechanism 500 according to the second embodiment does not include a key sub-lever, and three key lever units 580A, 580B, and 580C described later include a key sub-lever.
[0080]
The three sets of key lever units 580A, 580B, 580C serve as operation input sections from a key cylinder KC provided on the door D, respectively, and include input shaft key levers 5810A, 5810B, 5810C, caps 5820A, 5820B, and a key sub lever 5830A. , 5830B. Among them, the input shaft key levers 5810A, 5810B, 5810C are individually prepared for each key lever unit 580A, 580B, 580C, while the caps 5820A, 5820B and the key sub levers 5830A, 5830B are each set of three sets. Two key lever units 580A, 580B, 580C are prepared.
[0081]
The three input shaft key levers 5810A, 5810B, and 5810C are portions for engaging the key rods 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 base portions 5811A, 5811B, and 5811C have a stepped cylindrical shape with a small diameter at the upper end and a large diameter at the base end, and mounting holes 5814A, 5814B, 5814C for mounting the key rod KR on the axial center thereof. have. The mounting holes 5814A, 5814B, and 5814C are bottomed holes opened at the distal end surfaces of the base portions 5811A, 5811B, and 5811C. For example, when the distal end portion of the key rod KR is formed in a cross shape, it is fitted to this. The cross section has a cross shape. The shaft portions 5812A, 5812B, and 5812C are cylindrical portions having a smaller diameter than the base portions 5811A, 5811B, and 5811C. The base portions 5811A, 5811B, and 5811C are coaxial with the base portions 5811A, 5811B, and 5811C. Is provided on the lower surface. The key lever portions 5813A, 5813B, and 5813C are portions that extend radially outward from the base end peripheral surfaces of the base portions 5811A, 5811B, and 5811C, and have connection shaft portions 5815A, 5815B, and 5815C at the distal end. I have. The connection shaft portions 5815A, 5815B, and 5815C are formed in a columnar shape, and protrude from the upper surfaces of the distal ends of the key lever portions 5813A, 5813B, and 5813C.
[0082]
In the three input shaft key levers 5810A, 5810B, 5810C having the above-described configuration, the bases 5811A, 5811B, 5811C and the shafts 5812A, 5812B, 5812C have the same dimensions, while the bases 5811A, 5811B, 5811C. And the connection shaft portions 5815A, 5815B, and 5815C are configured so that the distances between the shaft centers are different from each other. In the following, the first input shaft key lever 5810A, the second input shaft key lever 5810B, and the third input shaft key lever are arranged in ascending order of the distance between the shaft centers of the base portions 5811A, 5811B, 5811C and the connecting shaft portions 5815A, 5815B, 5815C. 5810C.
[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 selecting hole 8 provided in the sub case 3, the pitch of each fitting position is set to P1 and P2 in order from the one closest to the connect lever shaft 541, and the connect lever shaft 541 and the shaft portion selecting hole 8 are connected. Assuming that the distance between the shaft centers between the fitting positions closest to the lever shaft 541 is C, the base portions 5811A and 5811A 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, L3 between the shaft centers of the 5811B, 5811C and the connecting shaft portions 5815A, 5815B, 5815C are set so as 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 5820A and 5820B are oval-shaped lids for closing the switching elongate holes 7 of the main case 2, and are provided with fitting holes at positions at the centers of the elongates. A first cap 5820A having a 5821A and a second cap 5820B having a fitting hole 5821B at one end of a long circle are prepared. Each of the fitting holes 5821A, 5821B is formed in a size that can fit the small-diameter portions of the bases 5811A, 5811B, 5811C of the input shaft key levers 5810A, 5810B, 5810C described above. The caps 5820A and 5820B are provided with O-rings 5822 and 5823, respectively, at the contact portions between the main case 2 and the contact portions between the input shaft key levers 5810A, 5810B and 5810C. (See FIG. 13).
[0085]
The key sub levers 5830A and 5830B are swingably disposed via a connect lever shaft 541, and extend upward from the connect lever shaft 541, and have a small first key sub lever 5830A. And a second key sub lever 5830B having a large length. Each of the key sub levers 5830A and 5830B is provided with a key lever connecting hole 5831A and 5831B, a lock position switching projection 5832A and 5832B, and an unlock position switching projection 5833A and 5833B, respectively. The key lever connecting holes 5831A and 5831B are long holes formed at the distal ends of the key sub levers 5830A and 5830B along the extending direction of the key sub levers 5830A and 5830B. The lock position switching projections 5832A and 5832B and the 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 locking position switching projections 5832A and 5832B and the unlock position switching projections 5833A and 5833B are provided with the switching pressure receiving portion 543 of the connect lever 540 interposed therebetween.
[0086]
The key lever units 580A, 580B, and 580C described above, for example, as shown in FIG. 9 and FIG. 12A, connect the shaft portion 5812A of the first input shaft key lever 5810A to the shaft portion selecting hole 8 of the sub case 3 most. The first key sub-lever 5830A is swingably supported by the connect lever shaft 541, and the connecting shaft portion 5815A of the first input shaft key lever 5810A is connected to the lever shaft 541 at a position close to the lever shaft 541. By inserting the key lever unit 580A into the key lever connecting hole 5831A of the 5830A, the key lever unit 580A becomes an operation input unit of the lock mechanism 500. Further, the small-diameter 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 fitted into the switching long hole 7 of the main case 2. By mounting, desired watertightness is ensured in the housing 10.
[0087]
In the lock mechanism 500 shown in FIGS. 9 and 12 (a), 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 will be the first. The rotation of the input shaft key lever 5810A is input, 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 locked position of the first key sub lever 5830A is locked. The connection lever 540 swings via the switching projection 5832A or the unlock position switching projection 5833A. Therefore, by rotating the key cylinder KC in a desired direction by a key operation, the lock mechanism 500 can be switched between the unlocked state and the locked state.
[0088]
Similarly, as shown in FIG. 12B, the shaft portion 5812B of the second input shaft key lever 5810B is fitted at an intermediate position in the shaft portion selecting hole 8 of the sub case 3, and the first key sub lever When the 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 through the key lever connecting hole 5831A of the first key sub lever 5830A, or FIG. As shown in the figure, the shaft portion 5812C of the third input shaft key lever 5810C is fitted in the shaft portion selection hole 8 of the sub case 3 at the position farthest from the connect lever shaft 541, and the second key sub lever 5830B is connected. The lever shaft 541 is swingably supported on the lever shaft 541, and further, the connecting shaft portion 5815 of the third input shaft key lever 5810 </ b> C. Is inserted through the key lever connecting hole 5831B of the second key sub-lever 5830B, the respective key lever units 580B and 580C serve as operation input sections of the lock mechanism 500, and the lock mechanism 500 is rotated by rotation of 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 °, desired watertightness is ensured in the housing 10 as in the case where the housing 10 is used 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 operation input units of the lock mechanism 500 are housed inside the housing 10, and the key cylinder Since the key rod KR rotating around 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 property. .
[0090]
In addition, even for vehicles in which the positions of the key cylinders KC are different from each other, the key lever units 580A, 580B, and 580C are appropriately selected and rearranged to one of FIGS. 12A to 12C. In other words, for a vehicle in which the position of the key cylinder KC is relatively low, the key lever unit 580A is used in the state shown in FIG. 12C, the key lever unit 580B is used in the state shown in FIG. 12C, and the key lever unit 580B is used for the vehicle in which the position of the key cylinder KC is at an intermediate height between them. Therefore, it is not necessary to prepare a dedicated door lock device for each of them. For this reason, it is extremely advantageous in terms of versatility, and it is possible to reduce the manufacturing cost of the door lock device and further reduce 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, 5810C are set so as to satisfy the above equations (1) and (2) as the key lever units 580A, 580B, 580C, the position of the key cylinder KC When the key lever units 580A, 580B, 580C are changed accordingly, the operation amounts of the key cylinders KC are the same without any change.
[0092]
In the above-described second embodiment, the operation input units are arranged at three different positions with respect to the housing 10. However, the arrangement positions of the operation input units do not necessarily have to be three positions. Or four or more positions.
[0093]
Further, in the above-described second embodiment, the height and the front-back position of the operation input unit are changed with respect to the housing 10, but only the height may be changed, or only the front-back position may be changed. It may be changed.
[0094]
Further, in the above-described second embodiment, the door D of the four-wheeled vehicle is illustrated as an application target of the door lock device, but a door provided in a vehicle other than the four-wheeled vehicle may be used. Further, the present invention is not limited to the door D provided on the lateral surface of the vehicle, but is applicable to a rear door. Further, the present invention is not necessarily required to be a front hinge, and may be applied to a door that opens and closes in other manners, such as an upper hinge door, a rear hinge door, a lower hinge door, and a sliding 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 housed inside the housing, which is extremely advantageous in terms of antitheft property. In addition, it is possible to cope with vehicles having different key cylinder positions by selecting an accommodating portion provided in the housing without requiring a dedicated door lock device, which is extremely advantageous in terms of versatility. Therefore, it is possible to reduce the manufacturing cost of the door lock device and the manufacturing cost of the vehicle to which the door lock device is applied.
[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 a front side of a vehicle.
FIG. 2 is a view of the door lock device shown in FIG. 1 as viewed from an outdoor side.
FIG. 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 locked state of a lock mechanism in the door lock device shown in FIG. 1;
FIGS. 5A to 5C are conceptual diagrams showing the operation of the latch mechanism.
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.
FIGS. 8A to 8C are cross-sectional views of the key lever unit shown in FIG.
FIG. 9 is a view 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 view 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.
FIGS. 12A to 12C are cross-sectional views illustrating a key lever unit according to the second embodiment.
FIG. 13 is a view for explaining the relationship between the lengths of the components of each key lever unit shown in FIGS. 9 to 11;
[Explanation of symbols]
1 Outside handle
2 Main case
3 Vice case
4 O-ring
5 Inside handle
6 Inside lock button
7 Slot for switching
8 Shaft selection hole
10 Housing
11 Latch mechanism housing
12 Lock mechanism housing
13 Horizontal notch groove
20 Latch mechanism
21 Latch
21a engagement groove
21b Hook
21c Locking part
22 Ratchet
22a engaging part
22b Working part
23 Latch axis
24 Ratchet shaft
25 Ratchet lever
25a contact part
30 Open lever
30a Open working end
30b Open operation end
30c pressure receiving part
31 Open lever shaft
32 Outside handle linking means
40 Inner handle lever
40a Inner working end
40b pressing part
41 Inner lever shaft
42 Inside handle linking means
500 Lock mechanism
510 Lock lever
511 Lock lever shaft
512 Link connection
513 button connection
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 linking means
520 worm wheel
521 Worm shaft
522 intermittent gear
522a Basic tooth
522b 1st drive tooth
522c Second drive tooth
530 Link lever
531 Mounting hole
532 Lock lever connection
533 ratchet drive
534 Connection Slot
540 connect lever
541 connect lever shaft
542 connection projection
543 Switching pressure receiving part
550 key sub lever
551 key lever connection hole
552 Lock position switching projection
553 Unlocking position switching projection
560 drive motor
561 Warm
570 key lever unit
5710 Input shaft member
5711 Base
5712 fitting part
5713 Shaft
5714 Mounting hole
5715 ridge
5720 key lever
5721 connecting shaft
5722 Selection fitting hole
5723 Notch for positioning
5730A First cap
5730B 2nd cap
5731 Fitting 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 projection
5833A, 5833B Unlocking position switching projection
D door
KC key cylinder
KR key rod
S striker

Claims (4)

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

Images