JP6130263B2 - Vehicle door lock device - Google Patents

Description

  The present invention relates to a vehicle door lock device provided in a vehicle.

  Patent Document 1 below discloses this type of vehicle door lock device. In this vehicle door lock device, a latch mechanism, a lock mechanism, and the like, which are constituent elements, are accommodated in a housing. Further, in this vehicle door lock device, a protective cover for protecting the joint portion between the first case and the second case constituting the housing is attached to the housing. According to this protective cover, it is possible to prevent the theft member from directly acting on the joint portion between the first case and the second case.

JP 2006-233506 A

(Problems to be solved by the invention)
By the way, in the above-described vehicle door lock device, the first case and the first engagement portion provided in the first case and the second engagement portion provided in the first case are engaged with each other by the coupling mechanism. The second case can be integrally connected. When this connection mechanism is interposed in the region between the housing and the protective cover, when the protective cover receives an external load from the theft member, the external load acts on the connection mechanism to connect the first case and the second case. Is assumed to be unable to be maintained. As a result, there arises a problem that the crime prevention property of the vehicle door lock device is lowered.

  Therefore, the present invention has been made in view of the above points, and one of its purposes is to provide a technique effective in improving the crime prevention of a vehicle door lock device.

(Means for solving the problem)
In order to achieve the above object, a vehicle door lock device according to the present invention includes a latch mechanism, a lock mechanism, a housing, a protective cover, a coupling mechanism, and a contact restricting portion. The latch mechanism is configured to be able to hold the vehicle door in a closed state by engagement with a striker attached to the vehicle body. The lock mechanism functions to set the latch mechanism to an unlocked state in which the engagement with the striker can be released or a locked state in which the engagement with the striker cannot be released. The housing includes a first case disposed inside the vehicle and a second case disposed outside the vehicle, and is configured as a container that houses at least a latch mechanism and a lock mechanism. The protective cover has cover inner surfaces that cover the case outer surfaces of the first case and the second case in order to protect the housing. The coupling mechanism includes a first engagement portion that extends from the first case to a partition region that is partitioned by a case outer surface and a cover inner surface of the first case, and a second engagement portion that extends from the second case to the partition region. The first case and the second case are coupled to each other by engagement with the. The contact restricting portion is interposed between the case outer surface of at least one of the first case and the second case and the cover inner surface of the protective cover when an external load is input to the protective cover. The inner surface of the cover is restricted from coming into contact with the coupling mechanism. Thereby, even if an external load acts on the protective cover, the connection of the first case and the second case by the connection mechanism can be maintained. As a result, the housing is not easily damaged by the theft member, and the crime prevention performance is improved.

  In the vehicle door lock device described above, the contact restricting portion is configured by a plurality of ribs protruding from the case outer surface of at least one of the first case and the second case to a position closer to the cover inner surface than the coupling mechanism. It is preferable. In this case, the plurality of ribs achieve the second function of protecting the coupling mechanism in addition to the first function of increasing the rigidity of the housing by supporting the protective cover that receives an external load. Therefore, the structure of the contact restricting portion can be simplified by using a plurality of ribs, and it is reasonable that these plurality of ribs can satisfy both the first function and the second function described above.

  In the vehicle door lock device described above, it is preferable that the plurality of ribs are provided on the outer surface of the case of the second case, and include a rib integrated with the second engagement portion. Thereby, a connection mechanism can be more reliably protected by the rib arrange | positioned adjacent to the connection mechanism.

  In the vehicle door lock device described above, the protective cover preferably includes a fixing portion that is fastened and fixed to at least one of the first case and the second case by a mounting bolt. In this case, even if an external load is applied to the protective cover, the contact restricting portion counters the external load, so that the mounting bolt and the fixing portion are difficult to receive an excessive load.

  As described above, according to the present invention, it is possible to improve the crime prevention property of the vehicle door lock device.

It is the figure which looked at the door lock device 100 for vehicles provided in the vehicle door 101 from the vehicle front side. It is the figure which looked at the door lock device 100 for vehicles in FIG. 1 from the vehicle front. It is the figure which looked at the door lock device 100 for vehicles in FIG. 1 from the vehicle upper direction. It is the figure which looked at the protective cover 120 in FIG. 1 from the vehicle front side. It is a figure which shows the cross-sectional structure regarding the AA line of the vehicle door lock apparatus 100 in FIG. It is the figure which looked at the door lock device 100 for vehicles in the state from which the protective cover 120 was removed from the housing 110 from the vehicle interior front. It is the figure which looked at the door lock device 100 for vehicles in the state from which the protective cover 120 was removed from the housing 110 from the vehicle interior back. FIG. 8 is an enlarged view of region B in FIG. 7. It is a figure which shows the cross-section regarding the CC line | wire in FIG. FIG. 3 is a diagram showing a cross-sectional structure of a protective cover 120. It is a figure which shows the cross-section of the protective cover 120 which concerns on the example of a change of FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawing, the front and rear of the vehicle are indicated by arrows X1 and X2, respectively, the outside of the vehicle (right side of the vehicle) and the inside of the vehicle (left side of the vehicle) are indicated by arrows Y1 and Y2, respectively. The upper side and the lower side of the vehicle are indicated by arrows Z1 and Z2, respectively. These directions can be applied to the vehicle door lock device in a state before being assembled to the vehicle door, and to the vehicle door lock device in a state after being assembled to the vehicle door.

  As shown in FIGS. 1 to 3, the vehicle door lock device 100 according to the present embodiment is divided into a region defined by a vehicle outer door outer panel and a vehicle inner door inner panel constituting the vehicle door 101. Has been placed. As a typical example of the vehicle door 101, a vehicle door on the right side of the rear seat is described. The vehicle door lock device 100 includes a housing 110 and a protective cover 120.

  As shown in FIG. 1, the housing 110 has an accommodating space for accommodating a plurality of components including a latch mechanism 130 and a lock mechanism 131. That is, the housing 110 is configured as a container that houses at least the latch mechanism 130 and the lock mechanism 131. Typically, the accommodation space for the latch mechanism 130 is provided on the vehicle rear side so as to face the striker 103 fixed to the vehicle body 102, and the accommodation space for the lock mechanism 131 is located on the vehicle front side from the accommodation space. A space is provided. The housing 110 includes a first case 111 and a second case 112 made of a resin material. The first case 111 is disposed on the vehicle inner side, and the second case 112 is disposed on the vehicle outer side. A housing 110 is formed by connecting an end surface of the first case 111 facing the inside of the vehicle and an end surface of the second case 111 facing the outside of the vehicle by a connection mechanism described later. In this case, the second case 112 disposed outside the vehicle is made of a resin material having a higher impact strength than the first case 111 disposed inside the vehicle (typically, a resin material having high toughness or brittleness with respect to impact fracture). Preferably it is configured. The housing 110 is not easily damaged by the theft member by relatively increasing the impact strength of the second case 112 that is easily received from the theft member because it is disposed outside the vehicle. The housing 110 corresponds to the “housing” of the present invention. Further, the first case 111 and the second case 112 constituting the housing 110 correspond to the “first case” and the “second case” of the present invention, respectively.

  The latch mechanism 130 can hold the vehicle door 101 in a closed state by engaging with the striker 103 attached to the vehicle body 102. The lock mechanism 131 sets the latch mechanism 130 in an unlocked state in which the engagement with the striker 103 can be released, or in a locked state in which the engagement with the striker 103 cannot be released. The latch mechanism 130 and the lock mechanism 131 correspond to the “latch mechanism” and the “lock mechanism” of the present invention, respectively. For further specific structures of the latch mechanism 130 and the lock mechanism 131, reference is made to the vehicle door lock device disclosed in Japanese Patent Application Laid-Open No. 2011-220094 and International Publication No. 2011/102057.

  The protective cover 120 is configured as a resin protector that covers the upper surface of the housing and the front surface of the housing in order to protect the housing 110. This protective cover 120 corresponds to the “protective cover” of the present invention. According to this protective cover 120, when a theft member (not shown) enters the vehicle door 101 from the direction of the arrow D1 or the direction of the arrow D2 (oblique direction) in FIG. By preventing the action or by extending the time until the action on the housing 110, the housing 110 itself and a plurality of components housed in the housing 110 can be protected.

  For this purpose, as shown in FIGS. 1 and 4, the protective cover 120 extends in a substantially L shape between the first end 121 and the second end 122, and the top cover 120a. And a front cover part 120b. The upper surface cover portion 120a is a portion that extends in a long shape along the vehicle longitudinal direction X1, X2 and covers the housing upper surface of the housing 110. The front cover part 120b is a part that extends from the upper cover part 120a toward the lower side of the vehicle and extends in a long shape along the vehicle vertical direction Z1 and Z2, and covers the housing front surface of the housing 110. The protective cover 120 has a second end portion 122 rotatably connected to the housing 110 (specifically, the first case 111 of the housing 110) via the movement restricting mechanism 140, and a plurality of upper surface cover portions 120a. The fixing bolt 141 is fastened and fixed to the upper part of the housing 110.

  Here, the housing 110 shown in FIG. 1 is inclined so that the upper surface of the housing is lowered from the front of the vehicle toward the rear of the vehicle due to the arrangement of the latch mechanism 130 in the vehicle door 101 at the rear seat. In this case, since the housing front surface of the housing 110 is inclined toward the rear side of the vehicle, the front surface of the housing is easily attacked directly by the theft member. Thus, by providing the protective cover 120 with a front cover portion 120b extending from the upper surface cover portion 120a toward the lower side of the vehicle, the front cover portion 120b can cover and protect the housing front surface of the housing 110. On the other hand, when the housing 110 is disposed substantially horizontally, for example, in the case of a front door, the extension length of the front cover portion 120b of the protective cover 120 is shorter than that shown in FIG. The front cover part 120b itself can be omitted.

  The movement restricting mechanism 140 functions to restrict the movement of the protective cover 120 along the vehicle vertical direction Z1, Z2 by holding the protective cover 120 with respect to the housing 110 (also referred to as “holding function”). Fulfill. As shown in FIG. 5, the movement restricting mechanism 140 is provided on the left and right sides of the vehicle at the second end 122 of the protective cover 120 (also referred to as “extending tip 122” of the front cover 120b extending from the top cover 120a). A cylindrical engagement shaft 123 provided so as to extend in the direction, and an engagement arm 115 having a substantially C-shaped cross section provided in the first case 111 of the housing 110 are configured.

  The engagement arm 115 extends from the facing portion 113 facing the second end 122 of the protective cover 120 in the vehicle vertical direction Z1, Z2 of the housing 110 along the front cover portion 120b (in the extending direction of the front cover portion 120b). Along the vehicle) and includes a covering portion 115a and an engaging recess 115b. The covering portion 115a functions to cover the boundary region (gap) 114 between the second end portion 122 of the protective cover 120 and the facing portion 113 of the housing 110 from the front side of the vehicle. The engagement recess 115b is provided on the inner surface of the cover portion 115a that faces the housing front surface of the housing 110, and is configured so that the engagement shaft 123 of the protective cover 120 can be fitted therein.

  In the engaged state in which the engagement shaft 123 of the protective cover 120 is fitted into the engagement recess 115b of the engagement arm 115, the protective cover 120 is moved from the assembly preparation position before covering both the housing upper surface 110a and the housing front surface 110b. The protective cover 120 can be easily rotated around the engagement shaft 123 to the assembly position where the protective cover 120 covers both the housing upper surface 110a and the housing front surface 110b. As a result, the assembling property of the protective cover 120 can be improved. Further, in this engaged state, the protective cover 120 is urged rearward by the engagement arm 115 that engages with the engagement shaft 123 and is provided on the case front surface 111 b of the first case 111 of the housing 110. The plurality of ribs 116 are biased forward of the vehicle. That is, the front cover portion 120b of the protective cover 120 is sandwiched from both sides by the housing 110 in the vehicle longitudinal direction X1, X2. Further, the engaging portions of the engaging shaft 123 and the engaging recess 115b are covered from the vehicle front side by the covering portion 115a of the engaging arm 115 so that the engaging portions are not exposed to the outside.

  According to the engagement arm 115 configured as described above, the theft member enters the boundary region 114, the engagement shaft 123, and the engagement portion of the engagement recess 115b from above the vehicle, or the second end 122 ( The covering portion 115a can prevent the front cover portion 120b from being hooked on the extended front end portion 122). Further, in the engaged state in which the engagement shaft 123 of the protective cover 120 is fitted in the engagement recess 115b of the engagement arm 115, even if the theft member is hooked on the second end 122 of the protective cover 120, the housing By holding the protective cover 120 with respect to 110, it is possible to prevent the second end portion 122 of the protective cover 120 from being pulled upward by the theft member. Further, since the engagement arm 115 extends upward along the front cover portion 120b, it is possible to prevent the theft member from being hooked on the extended distal end portion of the engagement arm 115. As a result, the protective cover 120 can be made of resin to reduce the weight and improve security. Further, in the engaged state in which the engagement shaft 123 of the protective cover 120 is fitted in the engagement recess 115b of the engagement arm 115, the second end 122 of the protective cover 120 is locked. A structure for fixing to the housing 110 with a bolt or the like can be omitted, thereby reducing the cost.

  As described above, the engagement arm 115 provided on the housing 110 has two functions of a covering function of the boundary region 114 by the covering portion 115a and an engaging mechanism of the engaging shaft 123 of the protective cover 120 by the engaging recess 115b. Have both. On the other hand, a structure in which these two functions are shared by the housing 110 and the protective cover 120 may be employed. For example, instead of providing the covering portion 115a on the housing 110 side, a portion corresponding to the covering portion 115a is provided on the protective cover 120 side, and the boundary region 114 is covered from the vehicle front side by this portion. Good. In this case, the portion corresponding to the covering portion 115a may be configured to extend upward from the protective cover 120 like the engagement arm 115, or from the protective cover 120 to extend downward from the vehicle. May be configured.

  6 and 7 show a state where the protective cover 120 is removed from the housing 110. FIG. In the housing 110, the housing upper surface 110 a (the case upper surface 111 a and the case front surface 111 b which are the case outer surfaces of the first case 111 and the case upper surface 112 a and the case front surface 112 b which are the case outer surfaces of the second case 112). Covered by the inner surface of the cover. A plurality of ribs 116 are provided on the case upper surface 111a and the case front surface 111b of the first case 111 so as to be separated from each other. The plurality of ribs 116 function to receive the protective cover 120 that receives an external load. Thereby, the rigidity of the housing 110 increases. As a result, the thickness of the protective cover 120 can be suppressed, and further weight reduction and cost reduction of the vehicle door lock device 100 can be realized.

  In this case, in the assembled state of the protective cover 120, a gap may be formed between the lower surface of the protective cover 120 and the upper surface of each rib 116, or the lower surface of the protective cover 120 and the upper surface of each rib 116 may be May contact each other in advance. Further, instead of or in addition to the form in which the plurality of ribs 116 are provided on the case upper surface 111a and the case front surface 111b of the first case 111, the inner surface of the protective cover 120, the case upper surface 112a and the case front surface 112b of the second case 112, Sites corresponding to the ribs can also be provided.

  The first case 111 and the second case 112 are connected to each other by a plurality of connecting mechanisms 119 provided on the housing upper surface 110a and the housing front surface 110b of the housing 110, respectively. This connection mechanism 119 corresponds to the “connection mechanism” of the present invention. For a typical example of each coupling mechanism 119, reference is made to FIGS. 8 and 9 show a coupling mechanism 119 provided on the housing upper surface 110a of the housing 110. The coupling mechanism 119 is an engaging claw 117 (first engaging portion) that can be engaged with each other. And an engagement arm 118 (second engagement portion).

  The engaging claw 117 extends from the case upper surface 111a of the first case 111 to a partition region (partition region 120d in FIG. 9) defined by the case upper surface 111a and the cover inner surface (cover inner surface 120c in FIG. 9). . The engaging arm 118 extends from the pair of ribs 116 and 116 provided on the case upper surface 112a of the second case 112 to the partition region 120d. The first case 111 and the second case 112 are connected to each other by the engagement of the engagement claws 117 and the engagement arms 118. Specifically, when the convex engagement claw 117 is fitted into the opening recess of the engagement arm 118, the engagement claw 117 engages with the opposing surface 118 a of the engagement arm 118 and the first case 111 in the vehicle left-right direction. It is held between the opposing surface 111c. According to the connection mechanism 119, the first case 111 and the second case 112 are reliably connected, and the relative movement of the first case 111 and the second case 112 in the vehicle left-right direction is restricted.

  As shown in FIG. 9, each coupling mechanism 119 is configured such that the upper surface of the engagement arm 118 is disposed at a lower position than the upper surface of each rib 116 with a height difference Δh. In this case, the plurality of ribs 116 protrude from the case upper surface 112a of the second case 112 to a position closer to the cover inner surface 120c than each coupling mechanism 119. Accordingly, the plurality of ribs 116 are formed between the case upper surface 112a of the second case 112 and the cover inner surface 120c of the protective cover 120 when the external load F is input to the protective cover 120 and the protective cover 120 is deformed to the vehicle lower side Z2. A contact restricting portion that restricts contact of the inner surface 120c of the cover with the coupling mechanism 119 is formed so as to be able to contact with each other. In other words, the plurality of ribs 116 achieve the second function of protecting each coupling mechanism 119 in addition to the first function of increasing the rigidity of the housing 110 by supporting the protective cover 120 that receives the external load F. . The plurality of ribs 116 correspond to the “contact regulating portion” and the “plurality of ribs” of the present invention. As a result, even when an external load is applied to the protective cover 120, the connection of the first case 111 and the second case 112 by the connection mechanism 119 can be maintained, and the housing 110 is not easily damaged by the theft member 150. Therefore, crime prevention is improved. In particular, the structure of the contact restricting portion can be simplified by using a plurality of ribs 116, and it is rational because these plurality of ribs 116 can satisfy both the first function and the second function described above. . In this case, the plurality of ribs 116 preferably include ribs integrated with the engagement arms 118. Thereby, the said connection mechanism 119 can be more reliably protected by the rib 116 arrange | positioned in proximity to the connection mechanism 119.

  Both the upper cover portion 120a and the front cover portion 120b of the protective cover 120 have the same cross-sectional shape. Here, the cross-sectional shape of the upper surface cover portion 120a of the protective cover 120 will be described with reference to FIG. The upper surface cover part 120 a of the protective cover 120 includes a covering part 124 and extending parts 125, 125. The covering portion 124 covers the housing upper surface 110a of the housing 110 (the case upper surface 111a of the first case 111 and the case upper surface 112a of the second case 112 in FIG. 7). Each extending portion 125 extends downward from both sides of the covering portion 124 in the vehicle left-right direction, and one extending portion 125 is fastened and fixed to the first case 111 of the housing 110 by the mounting bolt 141. The one extending portion 125 corresponds to the “fixing portion” of the present invention. In this case, even if an external load is applied to the protective cover 120, the plurality of ribs 116 resist the external load as described above, so that the mounting bolt 141 and the one extending portion 125 are not easily subjected to an excessive load.

  The covering portion 124 has only one convex shape (substantially triangular shape) that protrudes upward from the housing upper surface 110a side with respect to the first cross section defined by the vehicle vertical direction Z1, Z2 and the vehicle left-right direction. The convex shape of the covering portion 124 includes a top portion (uppermost portion) 124a, a first inclined surface 124b extending from the top portion 124a to the vehicle inner side Y2, and an inclination extending from the top portion 124a to the vehicle outer side Y1. The second inclined surface 124c comes out.

  In the covering portion 124, the top portion 124a preferably has a curved shape in which the shape of the first cross section is convex upward. Typically, the top portion 124a is formed by curved surface processing (R attachment) with a predetermined radius of curvature. Moreover, it is preferable that both the first inclined surface 124b and the second inclined surface 124c have a linear shape or a curved shape convex upward. Thereby, in the upper surface cover part 120a of the protective cover 120, a recessed part is not formed in an outer surface. Therefore, when the theft member 150 acts on the upper surface cover portion 120a of the protective cover 120 from the outside of the vehicle, the theft member 150 does not stay at a specific position on the outer surface of the cover portion 124, but the first inclination of the cover portion 124. It is easy to slide along the surface 124b or the second inclined surface 124c. Alternatively, the covering portion 124 moves relatively to the vehicle outer side Y1 or the vehicle inner side Y2 with respect to the theft member 150 by the load that the first inclined surface 124b or the second inclined surface 124c receives from the theft member 150. . As a result, it is possible to improve the crime prevention performance by suppressing the load that the upper surface cover portion 120a of the protective cover 120 receives from the theft member 150.

  Further, intrusion water such as rainwater that has entered the vehicle door 101 is divided into the vehicle interior Y2 and the vehicle exterior Y1 with the top portion 124a of the covering portion 124 as a boundary. In this case, it is possible to adjust the diversion ratio of the intruding water by changing the position of the top portion 124a in the left-right direction of the vehicle. For example, when the top portion 124a is provided on a center line L that passes through the center of the vehicle in the left-right direction, the intruding water that has entered the vehicle door 101 is approximately equally divided into the vehicle inner side Y2 and the vehicle outer side Y1. be able to.

  In the above-described covering portion 124, the covering portion 124 has a solid structure, and the vehicle vertical direction Z1 and Z2 in the top portion 124a has a vehicle vertical direction Z1 in each of the first inclined surface 124b and the second inclined surface 124c. , Preferably exceeding the thickness of Z2. Thereby, the rigidity of the top part 124a with high possibility that the theft member 150 will act first among the coating | coated parts 124 can be improved. In this case, in particular, the covering portion 124 preferably includes a top portion 124a on the outer side of the vehicle with respect to the vehicle left-right direction, rather than the joint portion D between the first case 111 and the second case 112 on the housing upper surface 110a. Thereby, even when the protective cover 120 is damaged by the theft member 150, the theft member 150 is less likely to act on the joint portion D between the first case 111 and the second case 112, and the crime prevention performance is improved.

  Although not particularly illustrated, the front cover portion 120b of the protective cover 120 is also provided with a covering portion having the same cross-sectional shape as the covering portion 124 of the upper surface cover portion 120a. As shown in FIG. 4 and the like, the covering portion of the front cover portion 120b is on the housing front side (housing front surface 110b in FIG. 6) side with respect to the second cross section defined by the vehicle front-rear direction X1, X2 and the vehicle left-right direction. To the front of the vehicle. That is, in the protective cover 120, the covering portion 124 having a convex shape is continuously formed from the upper surface cover portion 120a to the front surface cover portion 120b. As a result, in this protective cover 120, the front cover part 120b also has the same effect as the upper cover part 120a. For example, when the theft member 150 acts on the front cover portion 120b of the protective cover 120 from the outside of the vehicle, the load that the front cover portion 120b receives from the theft member 150 can be suppressed by the convex shape of the covering portion. Thereby, the housing 110 can be reliably protected by the entire protective cover 120 extending from the upper surface cover part 120a to the front cover part 120b, and the crime prevention property is improved.

  As for the cross-sectional shapes of the upper surface cover portion 120a and the front cover portion 120b of the protective cover 120, the cross-sectional shape shown in FIG. 11 can be adopted instead of the cross-sectional shape shown in FIG. The protective cover 120 shown in FIG. 11 is different from the protective cover 120 shown in FIG. 10 in that it does not have a portion corresponding to the second inclined surface 124c in FIG. In this case, the top portion 124a of the covering portion 124 is disposed at a position shifted outward from the center line L passing through the center of the vehicle in the left-right direction. According to this configuration, when the theft member 150 acts on the upper surface cover portion 120 a of the protective cover 120 from the outside of the vehicle, the theft member 150 does not stay at a specific position of the covering portion 124 and the first portion of the covering portion 124. It is easy to slide along the inclined surface 124b. Alternatively, the covering portion 124 moves relatively to the vehicle outer side Y1 with respect to the theft member 150 by the load that the first inclined surface 124b receives from the theft member 150. As a result, it is possible to suppress the load that the top cover portion 120a of the protective cover 120 receives from the theft member 150.

  The present invention is not limited to the above exemplary embodiment, and various applications and modifications are possible. For example, each of the following embodiments to which the above embodiment is applied can be implemented.

  In the above embodiment, the case where the plurality of ribs 116 are provided on each of the case upper surface 111a and the case front surface 111b of the first case 111 has been described. However, in the present invention, instead of or in addition to this configuration, the second case 112 is provided. A plurality of ribs 116 can be provided on each of the case upper surface 112a and the case front surface 112b. Further, the plurality of ribs 116 may include a rib integrated with the engaging claw 117 and the engaging arm 118 of the coupling mechanism 119, or all the ribs 116 may be the engaging claw 117 of the coupling mechanism 119. Or the engagement arm 118 may be a separate body. Moreover, you may comprise an abutting control part by one site | part which integrated the some rib 116. FIG. On the other hand, instead of or in addition to the configuration in which the plurality of ribs 116 are provided on the housing 110 as described above, a portion corresponding to the ribs can be provided on the cover inner surface 120c of the protective cover 120.

  In the above-described embodiment, the case where both the first case 111 and the second case 112 constituting the housing 110 are made of a resin material has been described. However, in the present invention, the first case 111 and the second case 112 are formed as follows. It can also be made of a metal material. In the present invention, the protective cover 120 can also be made of a metal material instead of the resin material.

  In the present invention, the essential structure of the vehicle door lock device 100 described above can be applied to each vehicle door of the vehicle. For example, the essential structure of the vehicle door lock device 100 can be applied to the left and right doors for the front seat of the vehicle, the left and right doors for the rear seat of the vehicle, and the door (back door) at the rear of the vehicle. it can.

  DESCRIPTION OF SYMBOLS 100 ... Vehicle door lock device, 101 ... Vehicle door, 102 ... Vehicle body, 103 ... Striker, 110 ... Housing, 110a ... Housing upper surface, 110b ... Housing front surface, 111 ... First case, 111a ... Case upper surface, 111b ... Case front 111c ... opposing surface, 112 ... second case, 112a ... case upper surface, 112b ... case front surface, 113 ... opposing portion, 114 ... boundary region, 115 ... engagement arm, 115a ... covering portion, 115b ... engagement recess, 116 ... ribs, 117 ... engaging claws, 118 ... engaging arms, 118a ... facing surface, 119 ... coupling mechanism, 120 ... protective cover, 120a ... top cover part, 120b ... front cover part, 120c ... cover inner face, 120d ... section Area 121 ... First end 122 ... Second end 123 ... Engagement shaft 124 ... Covering part 124a ... Department, 124b ... first inclined surface 124c ... second inclined surface, 125 ... extending part, 130 ... latch mechanism, 131 ... lock mechanism, 140 ... movement regulating mechanism, 141 ... mounting bolts 150 ... theft member

Claims (4)

A latch mechanism capable of holding the vehicle door in a closed state by engagement with a striker attached to the vehicle body;
A lock mechanism that sets the latch mechanism to an unlocked state in which the engagement with the striker can be released, or a locked state in which the engagement with the striker cannot be released;
A housing that includes at least the latch mechanism and the lock mechanism, and a first case disposed inside the vehicle and a second case disposed outside the vehicle;
A protective cover having a cover inner surface covering the outer surface of each of the first case and the second case in order to protect the housing;
A first engagement portion extending from the first case to a partition area defined by the case outer surface and the cover inner surface of the first case, and a second engagement extending from the second case to the partition area. A coupling mechanism for coupling the first case and the second case to each other by engagement with a portion;
When an external load is input to the protective cover, the protective cover is interposed between the case outer surface of at least one of the first case and the second case and the cover inner surface of the protective cover. A contact restricting portion for restricting the inner surface of the cover from contacting the connecting mechanism;
A vehicle door lock device. The vehicle door lock device according to claim 1,
The contact restricting portion includes a plurality of ribs that protrude from a case outer surface of at least one of the first case and the second case to a position closer to the cover inner surface than the coupling mechanism. Door lock device. The vehicle door lock device according to claim 2,
The plurality of ribs are all provided on the case outer surface of the second case, and include a rib integrated with the second engaging portion. The vehicle door lock device according to any one of claims 1 to 3,
The said protective cover is a vehicle door lock apparatus provided with the fixing | fixed part fastened and fixed to at least one of the said 1st case and the said 2nd case with an attachment bolt.

Images