JP6543837B2 - Vehicle door latch device - Google Patents

Description

  The present invention relates to a door latch device for a vehicle.

  In the conventional vehicle door latch device, the end portion of the operating lever rotatably accommodated in the casing (housing) is exposed from the opening provided in the casing, and the operating force transmitting member is provided at the end portion of the operating lever After connecting the end portions of the operation cable, the connection portion and the end portion of the operation cable are covered with an auxiliary cover (cover) (see, for example, Patent Document 1).

In addition, the auxiliary cover is rotatable and detachable from the casing so that it can be pivoted to a closed position that closes the connection between the operation lever and the operation cable and the end of the operation cable and an open position that opens that portion. It is pivotally supported.
Furthermore, temporary holding means is provided for temporarily holding the auxiliary cover in the open position so that the auxiliary cover in the open position can freely rotate and interfere with the connection operation between the operation lever and the operation cable. ing.

JP, 2014-62441, A

  In the door latch device described in Patent Document 1, the hinge portion consisting of the arm and the rod provided on the auxiliary cover is provided at a biased position on one side of the auxiliary cover. When the auxiliary cover is pivoted to the closed position as well as not stably supported, a gap is formed on the opposing surface of the other side of the auxiliary cover not provided with the hinge portion and the casing, and the gap Therefore, there is a risk that rainwater that has entered the door may enter the casing.

Although the casing and the auxiliary cover are provided with holding means for holding the auxiliary cover in the closed position, the holding means (locking projections) of the auxiliary cover are provided on both sides opposite to the hinge portion. Since only two units are provided, the auxiliary cover can not be reliably held in the closed position with respect to the casing, and a gap is formed on the facing surface of the casing and the auxiliary cover, and rainwater intruded into the door May intrude into the casing.
Furthermore, since the structure of the hinge portion is complicated and the temporary fixing means for temporarily holding the auxiliary cover in the open position is provided on both the casing side and the cover side, the structure of the temporary fixing means is also complicated. There is a problem that the cost in molding the casing and the auxiliary cover increases.

  In view of the above problems, the present invention makes it possible to stop and hold the auxiliary cover in the open position by simple means, and at the same time the auxiliary cover is stably pivoted on the casing, the auxiliary cover is closed. It is an object of the present invention to provide a vehicle door latch device capable of preventing rainwater from entering the casing by securely holding the vehicle.

According to the present invention, the above problems are solved as follows.
According to a first aspect of the present invention, there is provided a casing having a connecting area portion of an operating force transmitting member capable of transmitting an operating force of an operating device, and a connecting portion provided in the casing and being a terminal of the operating force transmitting member. After connecting the connecting portion of the operating force transmitting member to the connected portion of the operating lever, the operating lever having the connected portion connectable through the opening provided in the area portion, and In the door latch device for vehicles provided with an auxiliary cover that is separate from the casing, which can be closed, the casing is provided with a hinge axis, and the auxiliary cover is provided with a plurality of pivot portions spaced in the axial direction of the hinge axis . wherein such auxiliary cover can be rotated to the open position and vice versa to release said connection region portion from the closed position for closing the connecting area portion rotatably fitted to the hinge shaft to the pivot portion Further the tip of the pivot portion, the rotation when said auxiliary cover is rotated to the open position, by per surface to a surface of the hinge shaft vicinity of the casing, the auxiliary cover beyond the open position the rotation regulating portion for preventing to provided, the at the opposite end of the side provided with the front Kikururu branches that put the auxiliary cover, provided one another by separating a plurality of engagement portions, the said auxiliary cover When rotated to the closed position, the engaging portion engages with a plurality of engaged portions provided on the casing to fix the auxiliary cover in the closed position, and the casing is connected to the connection portion. It has a weir-like rainwater-inducing protrusion which protrudes in the vehicle inward direction so as to prevent water flowing down along the surface of the casing and flowing toward the connection region portion above the region portion. The engagement portion, in the said casing, is characterized by engaging the engaged portion provided at both ends the lower surface of the rainwater introducing projection.

In a second aspect based on the first aspect, the operating force transmitting member is a Bowden cable the inner cable is inserted into the outer tube, the back surface opposite to the connecting area portion of the auxiliary cover, wherein It is characterized in that a holding portion capable of holding the end of the outer tube immovably in a state where the hinge shaft is not fitted to the pivot portion is provided.

  According to the present invention, when the pivot portion provided on the other of the casing and the auxiliary cover is rotatably pivoted on the hinge shaft provided on one of the casing and the auxiliary cover, and the auxiliary cover is rotated to the open position, the pivot portion Since the auxiliary cover is made to stop and be held in the open position by the rotation restricting portion provided on the casing coming into contact with either the casing or the auxiliary cover, the auxiliary cover can be held in the open position. The configuration is simple as compared with the temporary fastening means of the conventional door latch device, and the cost in molding the casing and the auxiliary cover is reduced.

FIG. 1 is a perspective view of a door latch device according to the present invention and a door to which it is attached, as viewed obliquely from the rear of the vehicle interior. It is a rear elevation view of a door latch device before integrating a meshing unit and an operation unit. It is a rear elevation view of a door latch device after integrating a meshing unit and an operation unit. It is the perspective view which similarly looked at the door latch apparatus from diagonally back. It is the perspective view which looked at an auxiliary | assistant cover and the lower part of the door latch apparatus before attaching an auxiliary | assistant cover from the vehicle inner side. It is the side view which looked at the door latch device of the state which attached the auxiliary cover to the cover from the inner side of a car. Similarly, it is the side view which looked at the door latch device in the state where the auxiliary cover was closed from the inner side of a car. It is the front view which looked at the meshing unit from the front. It is the perspective view which looked at the housing and the body from back. It is an expanded sectional view in the XX line of FIG. It is an expanded sectional view in the XI-XI line of FIG. It is the rear view which looked at the modification of an auxiliary cover from the back side. It is an expanded sectional view of the same part as FIG. 10 which shows the modification of the attachment part of the auxiliary cover to a cover.

Hereinafter, an embodiment of the present invention will be described based on the drawings.
As shown in FIGS. 1 to 4, the door latch device 1 according to the present invention is fixed to the rear end portion of the inner panel D1 of the door D, for example, in the front door D (hereinafter abbreviated as door) D on the right side of the vehicle. And the operation unit 3 for operating the meshing unit 2 to unite the meshing unit 2 and the operation unit 3 with each other. It is composed of

  The meshing unit 2 is fixed to the box-shaped body 4 made of synthetic resin and the rear surface of the body 4 and made of metal fixed to the rear of the inner panel D1 in the door D together with the body 4 by three bolts 5 In the inner space between the body 4 and the cover plate 6, there is accommodated a meshing mechanism 8 for restraining the door in a closed state. At an intermediate part in the vertical direction of the side edge of the cover plate 6 on the inner side of the vehicle, there is an inner bent portion 6a which is bent substantially at right angles toward the front (body 4 side) and abuts on the inner side of the body It is formed (see FIG. 1). Further, at the vertically middle portion of the side edge on the vehicle outer side opposite to the entrance of the striker entry groove 9 described later in the cover plate 6, it is bent substantially at right angles toward the front (body 4 side), A short outer bent portion 6b is formed in contact with the side surface of the body 4 on the outer side of the vehicle (see FIGS. 2, 4 and 8). In addition, the inner side bending part 6a may be abbreviate | omitted and it may be set as the cover plate 6 which has only the outer side bending part 6b. The body 4 and the cover plate 6 are each formed with a substantially identical striker entry groove 9 into which the striker 7 enters when the door D is closed.

  One female screw hole 10a is formed on the upper side of the striker entry groove 9 in the cover plate 6, and two female screw holes 10b and 10c are formed on the lower side toward the front by burring. In the female screw holes 10a and 10b, positions where the bolt 5 screwed into the female screw holes 10a and 10b is separated from their rotation areas so as not to interfere with the later described latch 14 and ratchet 16 that constitute the meshing mechanism 8. Provided in That is, the lower two female screw holes 10 b and 10 c are cover plates so that the upper female screw holes 10 a are positioned closer to the side end in the vehicle direction opposite to the outer bending portion 6 b in the cover plate 6. In the lower end portion of each of the lower end portion 6 are provided in the vicinity of both end portions on the inner side and the outer side of the vehicle so as to be separated in the approach direction of the striker 7. The meshing unit 2 is fixed to the inner panel D1 (see FIG. 1).

  As shown in FIG. 2 and FIG. 3, a positioning hole 11 which is a long hole and a positioning hole 12 which is a circular hole are formed at the upper and lower sides of the cover plate 6 sandwiching the striker entry groove 9 respectively. . The upper positioning hole 11 is obliquely lower near the upper female screw hole 10a, closer to the inner end of the cover plate 6, and the lower positioning hole 12 is two lower female screw holes 10b, It is provided in the vicinity of the female screw hole 10b inside the vehicle between 10c. Further, the major axis direction of the upper positioning hole 11 which is a long hole is the same direction as a straight line connecting the centers of both the positioning holes 11 and 12, and the dimension in the minor axis direction is the upper and lower positioning holes 11 and 12 In order to be able to insert a positioning projection of the same size into the above, the diameter of the lower positioning hole 12 is made the same diameter. The sizes of the positioning holes 11 and 12 are made as small as possible so as not to reduce the strength of the cover plate 6. The position of the upper positioning hole 11 may be provided, for example, near the outer side in the vicinity of the upper female screw hole 10a or in the vicinity of the center of the cover plate 6 in the inner and outer direction. Also, contrary to this embodiment, the upper positioning hole 11 may be a circular hole, and the lower positioning hole 12 may be a long hole.

  The upper and lower positioning holes 11 and 12 are used to position and fix the cover plate 6 with a positioning jig when the meshing unit 2 is automatically assembled in an automatic assembly line or the like. That is, positioning in this case is generally performed using three bolt insertion holes provided in cover plate 6, but as described above, female screw holes 10a and 10b are inserted in three bolt insertion holes. , 10c, when the projections of the positioning jig are fitted into the female screw holes 10a, 10b, 10c, the female screws of the female screw holes 10a, 10b, 10c may be damaged. 11, 12 are provided separately. The upper positioning hole 11 is a long hole so that the projection of the positioning jig fitted in the positioning hole 11 can be easily inserted and removed. Further, the major diameter direction of the positioning hole 11 is a linear direction connecting the centers of both the positioning holes 11 and 12 when the positioning projections of the same outer diameter are inserted into the upper and lower positioning holes 11 and 12. This is to prevent the cover plate 6 from pivoting about the lower positioning hole 12 and shifting.

  The upper positioning hole 11 is provided closer to the side end of the cover plate 6 in the vehicle interior, and the lower positioning hole 12 is provided between the lower two female screw holes 10b and 10c, and both positioning holes 11 and 12 are Because the positioning holes 11 and 12 are bored, the positioning holes 11 and 12 are deformed when the outer bending portion 6 b is bent by pressing because the positioning holes 11 and 12 are formed. There is no possibility that the projection of the positioning jig can not be inserted. In addition, since the striker entry groove 9 is formed in the inner bent portion 6a and the bending rigidity is smaller than when the outer bent portion 6b is bent by press processing, the inner bent portion 6a is pressed by processing. It can be easily bent. Therefore, even if the upper positioning hole 11 is provided at a position close to the inner bending portion 6a, the positioning hole 11 is not deformed.

  The meshing mechanism 8 is pivotally supported by a pivot 13 in the body 4 and biased in an open direction (clockwise in FIG. 2) by a spring (not shown), and can be engaged with the striker 7 on the vehicle body side; It has a ratchet 16 pivotally supported by a pivot 15 in the body 4 and engageable with the outer peripheral edge of the latch 14. When the door D is closed, the striker 7 engages with the latch 14 and the ratchet 16 engages with the outer peripheral edge of the latch 14 to prevent the latch 14 from pivoting in the opening direction, thereby closing the door D. It is held in the state.

  In addition, when a locking lever 24 described later of the operation unit 3 is in the unlock position, the outside handle provided on the vehicle outside of the door D or the inside handle (not shown) provided on the vehicle inside is opened. When the outside lever 29 or the inside lever 26 described later is rotated based on the operation, the ratchet 16 engaged with the outer peripheral edge of the latch 14 by the open lever 27 linked to the outside lever 29 described later. Is released and the door D can be opened by pivoting in the release direction.

  As shown in FIG. 8, the front end portions of the pivots 13 and 15 are fixed by caulking to a vertically oriented metal back plate 17 which penetrates the body 4 and is fixed to the front surface (back surface) thereof. . Thus, the body 4 is firmly held by the cover plate 6 and the back plate 17. The lower end portion of the back plate 17 projecting downward from the lower end of the body 4 is fixed to a lower portion of the rear surface of the second casing 192 in the casing 19 described later by a bolt 18 inserted from the front side of the second casing 192 .

  The operation unit 3 is provided with a synthetic resin casing 19 which is substantially L-shaped in plan view (see FIG. 9). The casing 19 is disposed in the door D close to the side surface on the vehicle inner side of the inner panel D1, and has a first casing 191 made of synthetic resin having an operation mechanism accommodating portion 20 opened in the vehicle inner side; The second casing 192 made of a synthetic resin having a body accommodating portion 21 extending substantially at a right angle toward the vehicle exterior direction from the rear end portion of the vertically middle portion, and the operation mechanism accommodating of the first casing 191 The opening portion of the portion 20 is provided with a synthetic resin cover 22 which exposes and closes the vicinity of the striker entry groove 9 of the body 4 in the meshing unit 2. The casing 19 and the cover 22 are formed of, for example, polyacetal resin (POM). As shown in FIG. 4, on the side surface of the first casing 191 on the outer side of the operation mechanism accommodating portion 20, mesh-like ridges 201 are provided to prevent slip when the door latch device 1 is gripped and assembled to the door D. It is formed. Further, as shown in FIG. 1, a mesh-like ridge 224 for anti-slip is also formed on the upper portion of the side surface of the cover 22 on the inner side of the vehicle.

  In the housing space formed between the operation mechanism housing portion 20 of the first casing 191 and the cover 22, the meshing mechanism 8 is engaged with the striker 7 by operating the meshing mechanism 8 of the meshing unit 2. An operation mechanism is accommodated which can be switched between an unlock state in which the lock can be released and a lock state in which the lock can not be released. The operation mechanism includes an actuator (not shown) including a motor for automatically performing a lock / unlock operation, a key lever (all not shown) interlocked with the operation of the key cylinder, and a lock knob (shown in FIG. A part of the locking / unlocking means linked via the first Bowden cable 23 (see FIG. 6), which is an operating force transmitting member, and operated to the locked position and the unlocked position by the operation of the lock knob or the actuator. And the inside handle (not shown) provided on the inward side of the door D via the second Bowden cable 25 (see FIG. 6), which is an operation force transmitting member, and the inside handle is opened. It interlocks with the opening operation of the inside lever 26 rotated in conjunction with the operation and the outside handle (not shown) provided on the vehicle outside of the door D From the open lever 27 (see FIG. 2) or the like, which is connected to the inner end of the outside lever 29 described later and linked to the key lever and the locking lever 24 and movable to the locked position and the unlocked position. It has become. The components of the operating mechanism are not directly related to the present invention, and are well-known ones to be incorporated into a normal door latch device, so the detailed description thereof will be omitted.

  As shown in FIG. 3, in a state in which the meshing unit 2 is assembled to the body housing portion 21, the lower end portion of the base portion 193 of the second casing 192 protrudes downward relative to the meshing unit 2. As also shown in FIG. 9, a support shaft 28 in the front-rear direction is integrally protruded rearward on the rear surface of the base portion 193, and the support shaft 28 is an intermediate portion of the outside lever 29 facing in the vehicle interior and exterior direction. However, with the end on the vehicle outer side protruding from the second casing 192, it is pivotally supported in the vertical direction. In the vicinity of the mounting portion of the outside lever 29 in the second casing 192, that is, the surface facing the inner panel D1 of the door D below the body 4, the outside lever 29 is exposed except for the end portion inside the vehicle It is open to you.

  As shown in FIGS. 2 and 3, at the lower end of the outer peripheral wall 21a of the body accommodating portion 21 in the second casing 192, the anti-vibration piece 21b adjacent to the rear surface of the outside lever 29 is integrally formed. It is connected to the By pinching the end portion of the outside lever 29 on the outside of the vehicle by the anti-vibration piece 21b and the base portion 193 of the second casing 192, wobble of the outside lever 29 in the front-rear direction is prevented. There is. The anti-vibration pieces 21b also function as a protective wall that prevents unauthorized means inserted into the door D from entering the operation mechanism accommodating portion 20.

  As shown in FIG. 3, the back surface of the support shaft 28 and the rear surface near the middle portion of the outside lever 29 are a back plate that protrudes below the meshing unit 2 when the meshing unit 2 is assembled to the body accommodating portion 21. It is covered by the lower end of 17. A female screw hole 30 is formed at the lower end portion of the back plate 17 facing the support shaft 28, and the above-mentioned bolt 18 inserted from the front side of the second casing 192 is made to penetrate the support shaft 28 in the female screw hole 30. The intermediate portion of the outside lever 29 is rotatably held by the facing surfaces of the second casing 192 and the back plate 17 by screwing together. An end portion on the vehicle inner side of the outside lever 29 is formed at a lower side than the meshing unit 2 in the casing 19, and an opening portion 192a for communicating the operation mechanism accommodating portion 20 of the first casing 191 with the second casing 192 (see FIG. 4 and FIG. 9), it is connected to the open lever 27 which is a part of the operation mechanism accommodated in the operation mechanism accommodation portion 20.

  As shown in FIG. 2, FIG. 8 and FIG. 9, a plate-like engaging piece 31 projecting in the vehicle outer direction is integrally provided on the lower side of the side surface of the body 4 on the vehicle outer side. In the thick portion 211 formed on the inner surface of the side wall of the second housing 192 on the vehicle exterior side, when the meshing unit 2 is coupled to the operation unit 3 and integrated, An engagement groove 32 is formed which is openable in the direction of the inner panel D1 of the door D (inward direction) in which the door 31 can be engaged from the inward direction. The engagement piece 31 and the engagement groove 32 constitute positioning means for positioning and fixing the meshing unit 2 in the body accommodating portion 21 of the second casing 192.

  As shown in FIGS. 2 to 4 and 9, in the middle portion of the lower surface of the body 4 in the vehicle inner and outer direction, the protection wall 33 close to the rear surface in the middle portion of the outside lever 29 It is integrally provided downward so as to be close to the opening 192a communicating with the storage unit 20, and the opening 192a is covered by the protective wall 33 from the vehicle exterior direction. If such a protective wall 33 is provided, even if an illegal means such as a special tool is inserted toward the mounting portion of the outside lever 29 in the casing 19 from, for example, the gap between the outer panel of the door and the door glass Since it is blocked by the protective wall 33, the fraudulent means will not be intruded into the inside of the operation mechanism accommodation unit 20 through the opening 192a. Therefore, there is no possibility that the locking / unlocking means such as the open lever 27 housed in the operation mechanism housing portion 20 is moved in the unlocking direction by the illegal means and the door is opened.

  Further, since the protective wall 33 is integrally provided on the body 4 made of synthetic resin, the back plate 17 can be made smaller and lighter than when the protective wall 33 is provided on the metal back plate 17. The size and weight of the door latch device 1 can also be reduced. Moreover, as described above, since the engagement piece 31 which is the positioning means is also integrally provided on the body 4 made of synthetic resin instead of the metal back plate 17, the weight of the door latch device 1 can be further reduced. be able to.

  As shown in FIGS. 5 and 6, the lower portion of the side of the cover 22 facing inward the car has a bowl-shaped upper rainwater guiding projection 34 and a lower rainwater guiding projection 35 which project in the vehicle inner direction and incline rearward. Is formed. The upper rainwater guiding projection 34 and the lower rainwater guiding projection 35 are for guiding rainwater falling down along the surface of the cover 22 back downward and preventing it from flowing toward the cable connection area 221 described later. It is.

  A cable connection area 221 for connecting the first and second Bowden cables 23 and 25 to the locking lever 24 and the inside lever 26, respectively, is inclined rearward and downward below the lower rainwater guiding protrusion 35 in the cover 22. It is formed as you do. The cable connection area portion 221 is provided along the lower rainwater guiding protrusion 35 and the front edge of the cover 22 and inclines downward in the diagonally upward and downward direction front wall portion 36 projecting inward of the vehicle and the cover 22. It is provided along the lower edge, and is formed so as to be surrounded by a lower wall portion 37 in the front-rear direction projecting inward of the vehicle.

  The cable connection region 221 faces the front wall 36, and the vertical middle wall 38 which protrudes in the vehicle interior, and the middle of the middle wall 38 which is slightly behind the middle wall 38 and which protrudes in the car inner direction The cable holding portion 39 and the elongated hole 40 shaped to communicate with the inside of the operation mechanism accommodating portion 20 of the casing 19 and along the rotation locus of the lower end portion of the locking lever 24; The lower end portion of the inside lever 26 protrudes toward the cable connection area portion 221, and a notch 41 having a shape along the rotation trajectory of the lower end portion is formed. The front wall portion 36 is formed with two fitting grooves 36 a, 36 a into which the ends of the outer tubes 231, 251 of the first and second Bowden cables 23, 25 are respectively fitted. There are formed two fitting grooves 38a, 38a into which the large diameter end portions 232, 252 of the first and second Bowden cables 23, 25 are respectively fitted. Further, the large diameter end portions of the first and second Bowden cables 23, 25 are engaged with the cable holding portion 39 by fitting the respective annular grooves formed in the tip portions of the large diameter end portions 232, 252. Retaining grooves 39a, 39a are formed to hold 232, 252 immovably in the axial direction.

  The spherical connection portion 233a of the end portion of the inner cable 233 in the first Bowden cable 23 is fitted into the hemispherical recess 241 formed at the lower end of the locking lever 24 and opened through the long hole 40. It is united. Further, a shaft-like connecting portion 253 a of the end portion of the inner cable 253 in the second Bowden cable 25 is fitted in a fitting hole 261 formed in the lower end portion of the inside lever 26 which protrudes from the notch 41. . In addition, it is prevented that the both connection parts 233a and 253a are separated from the recessed part 241 and the fitting hole 261 by the below-mentioned auxiliary cover 42 which blocks the cable connection area part 221. The recess 241 of the locking lever 24 and the fitting hole 261 of the inside lever 26 correspond to a connected portion.

  The cable connection area portion 221 is closed by an auxiliary cover 42 made of a synthetic resin such as polypropylene which is separate from the cover 22 after connecting the first and second Bowden cables 23 and 25 to the locking lever 24 and the inside lever 26 respectively. It is supposed to be

  As shown in FIG. 5, the auxiliary cover 42 has substantially the same shape as the cable connection area 221, and contacts the front surface of the front wall 36 of the cover 22 at the front edge with the cable connection area 221 closed. A side wall 421 is protruded toward the cable connection area 221. Further, in the auxiliary cover 42, an upper wall portion 422 that can contact the side surface inside the vehicle in the lower part close to the lower rainwater guiding protrusion 35 of the cover 22 in the state of closing the cable connection area 221 It is projected toward the cable connection area portion 221 so as to be continuous with 421. In the side wall portion 421, there are formed pressing grooves 421a, 421a which can hold the outer tubes 231, 251 of the first and second Bowden cables 23 and 25 from the vehicle inner side and hold the cable connection region 221 closed. ing.

  Furthermore, the front wall portion 36 of the cover 22 and the middle portion of the cover 22 are closed at the front of the back surface of the auxiliary cover 42 (the surface opposite to the cable connection region 221 in the state where the cable connection region 221 is closed). The first intermediate side wall portion 423 located between the wall portions 38 and the second intermediate side wall portion 424 located between the intermediate wall portion 38 of the cover 22 and the cable holding portion 39 are directed toward the cable connection region 221 respectively. It is protruded. With the first intermediate side wall portion 423 and the second intermediate side wall portion 424, the large diameter end portions 232, 252 of the first and second Bowden cables 23, 25 are pressed from the inside of the vehicle while the cable connection area 221 is closed. Two upper and lower pressing grooves 423a and 424a are formed which can be held.

  In the front and rear of the upper edge of the auxiliary cover 42 (the lower edge when the cable connection area 221 is closed), as shown in the cross-sectional view of FIG. A pair of pivot portions 425, 425 having a U-shaped cross section that opens in the vehicle interior direction are integrally formed. The free end (tip end) of both pivot portions 425 faces downward when the cable connection area 221 is closed and faces upward when the cable connection area 221 is open, and the auxiliary cover is connected to the cover 22 A rotation restricting portion 425a is provided to prevent the 42 from rotating beyond the open position (details will be described later).

  As shown in FIG. 5, mounting portions 222, 222 project downward at the front and rear of the lower end of the cable connection area 221 of the cover 22, and both mounting portions 222 support the pivot of the auxiliary cover 42. An opening 222a into which the 425 can be inserted and a longitudinal hinge shaft 222b rotatably pivotably supporting the inner surface of the U-shaped bent portion of the pivot portion 425 below the opening 222a.

At the front end and the rear of the back face close to the upper edge of the auxiliary cover 42, engaging pieces 426, 426 having the engaging claw 426a at the tip end face in the vehicle outward direction when the cable connection area 221 is closed. It is protrusively installed.
In addition, engaging claws 427, 427 are provided on the lower surfaces of the front and rear ends opposite to the pivoting portions 425, 425 in the upper wall 422 of the auxiliary cover 42 (upper surfaces in the state where the cable connection area 221 is closed). It is provided in a projecting manner (see FIG. 10). The engaging piece 426 and the engaging claw portion 427 correspond to the engaging portion of the present invention for fixing the auxiliary cover 42 in the closed position.

When the cable connection area 221 is closed by the auxiliary cover 42, both the engaging pieces 426 have engagement holes 223 and 223 provided at the front end and the rear of the lower end of the cable connection area 221 of the cover 22. The engagement claws 426a of both the engagement pieces 426 are engaged with the opening edges of the back ends thereof.
Further, as shown in FIG. 10, when the cable connection area 221 is closed by the auxiliary cover 42, both the engaging claws 427 are provided on both the front and rear ends of the lower surface of the lower rainwater guiding protrusion 35 of the cover 22. It engages with the provided engagement claws 351. The four places of the auxiliary cover 42 are stably fixed to the cable connection area portion 221 of the cover 22 without rattling by the front and rear two engaging claws 426 a and the engaging claw portions 427. The engagement hole 223 and the engagement claw 351 correspond to the engagement portion of the present invention for fixing the auxiliary cover 42 in the closed position.

  As shown in FIG. 7, on the surface of the auxiliary cover 42 (the side surface inside the car when the cable connection area 221 is closed), a number of mesh-like ridges 428 for anti-slip are formed, and a door latch device When attaching 1 to the door D, grip the protrusions 224 of the cover 22 and the protrusions 428 of the auxiliary cover 42 and the protrusions 201 of the operation mechanism housing 20 of the first casing 191 by hand. Thus, the door latch device 1 can be efficiently assembled to the door D while anti-slip is achieved.

  In order to attach the auxiliary cover 42 to the cover 22, the rotation restricting portions 425 a of the both pivoting portions 425 provided on the auxiliary cover 42 are provided at the openings 222 a provided on both attachment portions 222 of the cover 22. And the entire peripheral cover 42 is rotated downward to fit the inner peripheral surface of the pivot portion 425 to the hinge shaft 222 b of the mounting portion 222. As a result, as shown in FIGS. 6 and 10, the auxiliary cover 42 opens the cable connection area 221 to each of the attachment sections 222 at the lower end of the cable connection area 221 (the two-dot chain line in FIG. In the closed position (solid line position in FIG. 10) which closes the cable connection area portion 221, it is pivotally supported in the vertical direction around the hinge shaft 222b.

  When the auxiliary cover 42 is in the open position, the rotation restricting portion 425a at the tip of each pivoting portion 425 abuts the outer surface of the proximal end portion of the mounting portion 222, as indicated by the two-dot chain line in FIG. Thus, the auxiliary cover 42 is prevented from rotating outward beyond the open position. As a result, the auxiliary cover 42 is held in the open position, so that the first and second Bowden cables 23, 25 can be attached to the cable connection area 221, and the inner cables 233, 253 can be locked by the locking lever 24 and the inside lever 26. When connecting to, the possibility of the auxiliary cover 42 turning around and becoming an obstacle is reduced.

  Attach the first and second Bowden cables 23, 25 to the cable connection area 221, connect the inner cables 233, 253 to the locking lever 24 and the inside lever 26, and then rotate the auxiliary cover 42 to the closed position. The engagement pieces 426 and the engagement claws 427 engage with the engagement holes 223 and the engaged protrusions 351, respectively, on the cover 22 side, and the auxiliary cover 42 is held in the closed position (FIG. 7, FIG. 7). 10). As a result, the cable connection area portion 221 is covered by the auxiliary cover 42 and rainwater can be prevented from entering the cable connection area portion 221. In addition, since the front, rear, upper and lower portions of the auxiliary cover 42 are stably fixed to the cable connection area portion 221 of the cover 22, rattling of the auxiliary cover 42 is prevented. In the state where the cable connection area portion 221 is closed by the auxiliary cover 42, the upper side of the auxiliary cover 42 is formed by two upper and lower ridge-like upper rainwater guiding bumps which guide rainwater falling down along the surface of the cover 22 downward. Because it is covered by the portion 34 and the lower rainwater guiding projection 35, the risk of rainwater entering the cable connection region 221 is further reduced.

  FIG. 12 shows a modification of the auxiliary cover, and the auxiliary cover 50 has the same basic shape as the above-described auxiliary cover 42, and only the shape of the back surface is changed. In the front part of the back surface of the auxiliary cover 50, the large diameter end portions 232, 252 of the first and second Bowden cables 23, 25 are made immovable apart from the first intermediate side wall portion 423 and the second intermediate side wall portion 424. The cable holding part 501 which has holding groove 501a, 501a to hold | maintain is integrally formed.

  As described above, when the cable holding portion 501 is provided on the back surface of the auxiliary cover 50, the first and second Bowden cables 23 and 25 can be packaged into one in a state of being temporarily assembled to the auxiliary cover 50. 1. It is not necessary to transport the 2nd Bowden cables 23, 25 separately. As a result, in the assembling process of the door latch device to the door D, the assembling efficiency of the auxiliary cover 50 and the first and second Bowden cables 23 and 25 is improved. Note that holding means for positioning and holding the connecting portions 233a, 253a of the first and second Bowden cables 23, 25 in the auxiliary cover 50 with respect to the recess 241 of the locking lever 24 and the fitting hole 261 of the inside lever 26 You may provide. As a result, the connecting portions 233a and 253a of the first and second Bowden cables 23 and 25 temporarily assembled to the auxiliary cover 50 can be closed simultaneously with the closing of the cable connection area 221 by the auxiliary cover 50, respectively. And the fitting hole 261 of the inside lever 26 and the assembling efficiency can be improved.

  As described above, in the door latch device of the above embodiment, the rotation restricting portion 425a is integrally formed at the tip of the two pivoting portions 425 provided on the auxiliary cover 42, and the auxiliary cover 42 is moved to the open position. When rotating, both rotation regulating portions 425a come in contact with the back surface of the mounting portion 222 integrally formed on the cover 22, whereby the auxiliary cover 42 is stopped and held at the open position. Therefore, the configuration of the means for holding the auxiliary cover 42 in the open position is simpler than the temporary fastening means of the conventional door latch device, and the cost for molding the cover 22 and the auxiliary cover 42 is reduced.

  Further, since the two pivot portions 425 are provided at the front and rear ends of the auxiliary cover 42 so as to be separated from each other in the rotational axis direction of the auxiliary cover 42, the auxiliary cover 42 rotates stably with respect to the cover 22. When the auxiliary cover 22 is rotated to the closing position, the lower end portion of the auxiliary cover 42 is lifted from the cover 22, and the inside of the door D is formed from the gap formed on the facing surface of the cover 22 and the auxiliary cover 42. There is no risk that the rainwater that has penetrated enters the casing 19.

  Furthermore, when the auxiliary cover 22 is provided with two engaging pieces 426 and engaging claws 427 on the side opposite to the side on which the pivoting portion 425 is provided, the auxiliary cover 22 is rotated to the closed position. The two engaging pieces 426 and the engaging claws 427 respectively engage with the engaging holes 223 and the engaged protrusions 351 provided on the cover 22, and the four corners of the auxiliary cover 22 are in the vicinity Because the cover 22 is stably fixed to the cover 22, no gap is formed on the facing surface of the cover 22 and the auxiliary cover 42. Therefore, the risk that rainwater that has entered the door D intrudes into the casing 19 is extremely reduced.

  Since a large number of mesh-like ridges 428 for anti-slip are formed on the surface of the auxiliary cover 42, when assembling the door latch device 1 to the door D, the ridge 428 forming portion of the auxiliary cover 42 is manually By gripping the door latch device 1, the door latch device 1 can be efficiently assembled to the door D while preventing slippage.

  Since the auxiliary cover 42 is separate from the cover 22, the auxiliary cover 42 can be packaged separately and delivered separately from the door latch device and the Bowden cables 23, 25. Therefore, the load when the door latch device is packaged It becomes smaller and transport efficiency improves. In addition, after attaching the Bowden cables 23, 25 delivered as a single body to the cable connection area 221 of the cover 22 in the process of assembling the door latch device to the door D, the auxiliary cover 42 delivered as a single body is attached to the cover 22. After mounting and closing the cable connection area portion 221 with the auxiliary cover 42, finally, the door latch device can be assembled in the door D, so that assembling workability is improved. The Bowden cables 23 and 25 may be attached to the cable connection area 221 after the auxiliary cover 42 is attached to the cover 22 first. In this case, since the auxiliary cover 42 can be held in the open position, the auxiliary cover 42 does not get in the way when attaching the Bowden cables 23, 25.

As mentioned above, although embodiment of this invention was described, it is possible in the range which does not deviate from the summary of this invention, for example to perform various deformation | transformation and changes of the following as follows.
In the above embodiment, the pivot portion 425 having a U-shaped cross section provided on the auxiliary cover 42 is removably and rotatably supported on the hinge shaft 222b provided on the cover 22 as shown in FIG. Alternatively, the pivot portion 225 may be provided on the cover 22 side, and the hinge shaft 429 and the opening 429a may be provided on the auxiliary cover 42 side. At this time, the pivot support portion 225 is formed into a substantially U-shaped cross-section that opens in the outward direction of the vehicle in the opposite direction to the above, and auxiliary support is provided to the side surface inside the vehicle If the outer surface of the base end on the side provided with the hinge shaft 429 in the cover 42 abuts, the auxiliary cover 42 is stopped and held in the open position as in the above embodiment.

  Moreover, although illustration is abbreviate | omitted, the hinge axis | shaft which protrudes toward the front or back is provided in any one of the cover 22 and the auxiliary cover 42, and either the other of the cover 22 and the auxiliary cover 42 is provided in this hinge axis. The tubular pivot portion provided at the rear may be detachably and rotatably fitted and pivoted from the front or the rear. Also in this case, the auxiliary cover 42 can be stopped at the open position and held by projecting the rotation restricting portion as in the above-described embodiment on the outer peripheral surface of the cylindrical pivot portion.

DESCRIPTION OF SYMBOLS 1 door latch device 2 meshing unit 3 operation unit 4 body 5 bolt 6 cover plate 6a inner bent portion 6b outer bent portion 7 striker 8 meshing mechanism 9 striker entry grooves 10a, 10b, 10c female screw holes 11, 12 positioning hole 13 pivot shaft 14 Latch 15 Pivot 16 Ratchet 17 Back plate 18 Bolt 19 Casing 20 Operation mechanism accommodating portion 21 Body accommodating portion 21a Outer peripheral wall portion 21b Anti-vibration piece 22 Cover 23 First Bowden cable (operating force transmitting member)
24 Locking lever (control lever)
25 2nd Bowden cable (operation force transmission member)
26 Inside lever (control lever)
27 open lever 28 support shaft 29 outside lever 30 female screw hole 31 engagement piece 32 engagement groove 33 protective wall 34 upper rainwater guiding projection 35 lower rainwater guiding projection 36 front wall 36a fitting groove 37 lower wall 38 middle Wall 38a Fitting groove 39 Cable holder 39a Holding groove 40 Long hole (opening)
41 Notch (opening)
42, 50 Auxiliary Cover 191 First Casing 192 Second Casing 192a Openings 193 Bases 201 Projections 211 Thickened Sections 221 Cable Connection Area Sections 222 Mounting Sections 222a Openings 222b Hinge Shaft 223 Engagement Holes (Receivable Sections)
224 projection 225 pivoting portion 225a rotation regulating portion 231, 251 outer tube 232, 252 large diameter end portion 233, 253 inner cable 233a, 253a connecting portion 241 recessed portion (connected portion)
261 Fitting hole (connected part)
351 Engaged claw part (engaged part)
421 side wall 421a holding groove 422 upper wall 423 first intermediate side wall 424 second intermediate side wall 423a, 424a holding groove 425 pivoting portion 425a rotation restricting portion 426 engagement piece (engagement portion)
426a Engaging claw 427 Engaging claw (engaging portion)
428 Protrusions 429 Hinge Axis (Hinge Section)
429a Opening 501 Cable holding portion 501a Holding groove D Door D1 Inner panel

Claims (2)

A casing having a connecting area portion of an operating force transmitting member capable of transmitting an operating force of the operating device;
An operation lever provided in the casing and having a coupled portion which can be coupled via an opening portion provided in the coupling region portion, the coupling portion being a terminal of the operation force transmission member;
A door latch device for a vehicle, comprising: an auxiliary cover separate from the casing, capable of closing the connecting area portion after connecting the connecting portion of the operating force transmitting member to the connected portion of the operating lever.
The casing is provided with a hinge shaft, and the auxiliary cover is provided with a plurality of pivoting portions spaced in the axial direction of the hinge shaft ,
The hinge shaft is rotatably fitted to the pivot portion so that the auxiliary cover can be rotated from the closed position closing the connection area to the open position opening the connection area and vice versa. When the auxiliary cover is rotated to the open position at the tip end of the pivot portion , the auxiliary cover is rotated beyond the open position by contacting the surface of the casing in the vicinity of the hinge axis . Provide a rotation restriction unit that
Wherein the opposite end of the auxiliary cover is provided in front Kikururu branch that put on the side, provided each other to separate the plurality of engaging portions, when said auxiliary cover is rotated to the closed position, the locking The auxiliary cover is fixed in the closed position by the engagement portions respectively engaging with a plurality of engaged portions provided on the casing,
The casing is located above the connection area, and has a ridge-like rainwater-inducing projection projecting inward toward the vehicle interior so as to prevent water flowing down along the surface of the casing from flowing toward the connection area. Have a department,
A door latch device for a vehicle, wherein the engaging portion is in the casing and engages with engaged portions provided on lower surfaces of both ends of the rainwater guiding protrusion. The operation force transmitting member is a Bowden cable in which an inner cable is inserted in the outer tube, and the hinge shaft is not fitted to the pivot support portion on the back surface of the auxiliary cover facing the connection area portion. The door latch device for a vehicle according to claim 1 , further comprising a holding portion capable of holding the end portion of the outer tube immovably .

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