Locking structure of a door impact beam

Abstract

The present application provides a lock structure of a vehicle door impact beam, which can effectively prevent the engagement of the lock mechanism from falling off when the vehicle is side-impacted by using a simple structure. The lock mechanism (50) includes an engagement hook (60) connected to the rear end portion (40b) of the vehicle door impact beam (40) and an insertion hole (70) provided at the lower end portion (17a) of the center pillar (17) as a member on the vehicle body side. In the state where the door (14A) is closed, the rear end portion (40b) of the vehicle door impact beam (40), the engagement hook (60) and the insertion hole (70) of the lock mechanism (50) are arranged at positions overlapping with each other when viewed in the vehicle width direction, the engagement hook (60) includes a protruding portion (61) protruding toward the inner side of the vehicle width direction from the rear end portion (40b) of the vehicle door impact beam (40), and the insertion hole (70) is open toward the outer side of the vehicle width direction.

Description

Technical Field

[0001] This invention relates to a locking structure for a door anti-collision beam, which connects the end of the door anti-collision beam included in a vehicle door to the side of the vehicle body. Background Technology

[0002] Patent Document 1 discloses a locking structure for a door impact beam that connects the end of a door impact beam installed in a vehicle door to the side of the vehicle body. The structure involves engaging the rear end of a door impact beam (lower rear door impact beam) installed inside the rear door with a locking mechanism (rear door locking mechanism) located below the C-pillar (rear pillar) to the rear quarter panel (side of the vehicle body). The locking mechanism is as described in Document 1. Figure 3 As shown, it includes: an embedded member that protrudes from the rear end of the metal sheet constituting the rear door toward the rear of the vehicle; and a support member located at the lower part of the C-pillar.

[0003] According to the locking mechanism described in Patent Document 1, for example, when a load caused by a collision from the side of the vehicle (side impact) is applied to the rear door, causing the door impact beam to deform by being squeezed inwards (towards the passenger compartment) in the vehicle width direction, a tensile force in the vehicle's longitudinal direction acts on the locking mechanism. At this time, the engaging part of the locking mechanism engages with the fitting groove, thereby restricting their relative movement. Thus, the movement of the door impact beam in the vehicle's longitudinal direction is restricted.

[0004] [Existing Technical Documents]

[0005] [Patent Literature]

[0006] Patent Document 1: Japanese Patent No. 6832762 Summary of the Invention

[0007] [The problem the invention aims to solve]

[0008] However, in the conventional structure described in Patent Document 1, the insert member (hook) of the locking mechanism extends rearward from the rear end of the rear door. Therefore, when the middle part of the long side of the door anti-collision beam is squeezed into the side of the vehicle compartment due to the load of a side collision, the insert member may move in the direction of rotating outward with the rear end of the rear door as the center. As a result, the engagement between the insert member and the support member may fall off.

[0009] The present invention was made in view of the aforementioned problems, and aims to provide a locking structure for a door anti-collision beam that can effectively prevent the locking structure from falling off during a side collision of a vehicle using a simple structure, thereby providing both traffic safety and preventing a decrease in traffic flow.

[0010] [Technical means to solve the problem]

[0011] To solve the aforementioned problem, the locking structure of the door anti-collision beam of the present invention includes: a door 14A, which is closable and mounted on the vehicle body 10; and a locking mechanism 50 for connecting the door 14A to a component 17a on the side of the vehicle body when the door 14A is closed. The door 14A includes: an inner panel 20 and an outer panel 22, which are respectively disposed on the inner and outer sides in the vehicle width direction; and a strip-shaped door anti-collision beam 40, which is disposed between the inner panel 20 and the outer panel in the vehicle width direction and extends along the front-rear direction of the vehicle body. The locking mechanism 50 includes: an engaging member 60 connected to the end 40b of the door anti-collision beam 40; and a locked portion 70 disposed on the component 17a on the side of the vehicle body to engage the engaging member 60. When the door 14A is closed, the end 40b of the door anti-collision beam 40, the engaging member 60 and the locked portion 70 of the locking mechanism 50 are positioned to overlap each other when viewed from the vehicle width direction.

[0012] Furthermore, in the latching structure, the engaging member 60 may include a protrusion 62 that protrudes from the end 40b of the door anti-collision beam 40 toward the inner side in the vehicle width direction, and the engaging part 70 includes an insertion hole 70 that opens toward the outer side in the vehicle width direction for the protrusion 62 to be inserted.

[0013] According to the locking structure of the door impact beam of the present invention, when a load caused by a collision from the side of the vehicle (side impact) is input to the door impact beam, the engaging member is displaced in the direction of being pressed into the engaging portion due to the displacement of the door impact beam towards the inward side (cargo compartment side) in the vehicle width direction caused by the load. Therefore, the risk of the protrusion of the engaging member dislodging from the insertion hole of the engaging portion can be effectively reduced. Thus, a simple structure can be used to prevent the locking structure from disengaging during a side impact of the vehicle. Therefore, a tensile force towards its long side direction can be applied to the door impact beam more reliably, thereby effectively suppressing the deflection of the door impact beam towards the inward side (cargo compartment side) in the vehicle width direction caused by the load of a side impact of the vehicle.

[0014] Furthermore, in the latching structure, the protrusion 62 of the engaging member 60 may be elongated, with its long side direction L1 extending in a direction intersecting the long side direction L2 of the door anti-collision beam 40.

[0015] According to the structure, when the load caused by a side collision of the vehicle causes the central portion of the door impact beam to deform in a manner that pushes into the passenger compartment side more than its two ends, and the engaging member displaces toward the central side of the door impact beam in the long direction, the protrusion of the engaging member abuts (so-called face abutment) against the inner surface of the door impact beam side of the insertion hole, thereby more effectively preventing the protrusion from disengaging from the insertion hole. That is, the protrusion of the engaging member is an elongated strip extending in a direction intersecting the long direction of the door impact beam, and thus, the side surface of the protrusion in the long direction abuts against the inner surface of the opposing insertion hole, thereby increasing the contact resistance (frictional resistance) between these protrusions and the abutment portion of the insertion hole. Furthermore, the load applied to the abutment portion of the protrusion and the insertion hole can be effectively distributed, thus preventing the locking mechanism from disengaging even under large loads.

[0016] Furthermore, the latching structure may include a bracket 80 for mounting the end 40b of the door anti-collision beam 40 to the inner panel 20, and the engaging member 60 is fixed to the bracket 80.

[0017] According to the structure, the engaging member is fixed to the end of the door impact beam via a bracket, thus preventing relative displacement between the door impact beam and the engaging member. Therefore, a tensile force can be more effectively applied to the door impact beam in the direction of its long side, thereby more effectively suppressing displacement (deformation) of the central portion of the door impact beam in the direction of its long side toward the inside (car compartment side) in the vehicle width direction.

[0018] Furthermore, according to the aforementioned structure, the engaging member is fixed to the end of the door anti-collision beam via a bracket containing a plate-shaped member that is relatively easy to process. Thus, compared to the case where the engaging member is directly fixed to the end of the door anti-collision beam, it is possible to simplify the vehicle (body) manufacturing process, improve manufacturing efficiency, and reduce costs.

[0019] Furthermore, in the locking structure, the bracket 80 may include a pair of extensions 82, 82, which extend along the long side direction of the door anti-collision beam 40 on both sides (upper side and lower side in the embodiments described later) in a direction that intersects with the long side direction of the end 40b of the door anti-collision beam 40. The engaging member 60 is fixed to the pair of extensions 82, 82 of the bracket 80.

[0020] According to the structure, the engaging member is fixed to the extension of the bracket on both sides (upper and lower sides) of the end of the cross-section and door anti-collision beam, thereby preventing the engaging member from moving relative to the door anti-collision beam in the direction of tilting towards both sides (upper and lower sides) that intersect the long side direction during a side collision of the vehicle.

[0021] Furthermore, in the latching structure, the engaging member 60 may include: a first member 60A, comprising a plate-shaped member with a generally L-shaped cross-section, the plate-shaped member having a first mounting portion 61a mounted on the door 14A and a first protrusion 62a extending inward from the first mounting portion 61a toward the vehicle width direction; and a second member 60B, comprising a plate-shaped member with a generally L-shaped cross-section, the plate-shaped member having a second mounting portion 61b mounted on the door 14A and a second protrusion 62b extending inward from the second mounting portion 61b toward the vehicle width direction, the first protrusion 62a of the first member 60A and the second protrusion 62b of the second member 60B overlapping each other, the first mounting portion 61a of the first member 60A and the second mounting portion 61b of the second member 60B extending in different directions.

[0022] According to the structure described above, the first and second components constituting the engaging member can be formed by bending, thus improving the manufacturability of the vehicle body. Furthermore, by overlapping the first and second protrusions and extending the first and second mounting portions in opposite directions, tilting of the first and second protrusions (displacement of the first and second components in the direction of their inclination) can be prevented, thus more reliably preventing the engagement of the engaging member's protrusions with the insertion hole from detaching.

[0023] Additionally, the symbols within the parentheses are reference numerals indicating the corresponding components in the embodiments described later, for reference only.

[0024] [The effects of the invention]

[0025] The locking structure of the door anti-collision beam according to the present invention can effectively prevent the locking structure from falling off during a side collision of a vehicle using a simple structure, thereby improving the safety of traffic using the vehicle and suppressing the decline in traffic flow. Attached Figure Description

[0026] Figure 1 This is a diagram showing a portion of the side of a vehicle body to which the locking structure of a door anti-collision beam according to an embodiment of the present invention is applied.

[0027] Figure 2 This is a view of the lower rear end of the front door from the side, showing the rear end of the door's impact beam and its vicinity.

[0028] Figure 3 This is a diagram showing the lower rear end of the front door as viewed from the back, and it also shows the locking mechanism's engaging components.

[0029] Figure 4 It is a diagram showing the lower rear end of the front door opening, and also a diagram showing the insertion hole of the latching mechanism located on the side of the vehicle body.

[0030] Figure 5 It means and Figure 3 A cross-sectional view of the location corresponding to the AA arrow.

[0031] [Explanation of Symbols]

[0032] 10: Body

[0033] 14: Side door

[0034] 14A: Front door

[0035] 14B: Backdoor

[0036] 14a: Door

[0037] 16: Door opening

[0038] 16A: Front door opening

[0039] 16B: Rear door opening

[0040] 17: Central Pillar

[0041] 17a: Lower end

[0042] 20: Inner panel

[0043] 20a: Upper part of the front side

[0044] 20b: Lower rear section

[0045] 20c: Surface

[0046] 20d: Back

[0047] 40: Door anti-collision beam

[0048] 40a: Front end

[0049] 40b: Rear end

[0050] 50: Locking mechanism

[0051] 60: Engaging hook (engaging component)

[0052] 60A: First component

[0053] 60B: Second component

[0054] 61a: First Installation Section

[0055] 61b: Second Installation Section

[0056] 62: Protrusion

[0057] 62a: First protrusion

[0058] 62b: Second protrusion

[0059] 70: Insertion hole (locking part)

[0060] 70a: Inner surface

[0061] 80: Bracket

[0062] 81: Anti-collision beam fixing part

[0063] 82, 82: Extension

[0064] 85: Bolt

[0065] 87: Reinforcing Components

[0066] L1: Long side direction of the protrusion

[0067] L2: Long side of the door anti-collision beam Detailed Implementation

[0068] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Furthermore, in the following description, "front" or "rear" refers to the forward direction (front side) or the reverse direction (rear side) of the vehicle body (vehicle). Moreover, "left" and "right" refer to the left and right of the vehicle width direction in the forward direction (front side) of the vehicle body (vehicle), respectively. Furthermore, "up" and "down" refer to the vertical direction (vertical direction) of the vehicle body (vehicle).

[0069] Figure 1 This figure shows a portion of the side of a vehicle body to which the door anti-collision beam latching structure of an embodiment of the present invention is applied. As shown in this figure, the vehicle including the door anti-collision beam latching structure of an embodiment of the present invention is configured to include a side door 14 provided on the body 10. The side door 14 includes a front door 14A and a rear door 14B. Furthermore, the body 10 is provided with a door opening 16 for the side door 14 to be opened and closed. The door opening 16 has a front door opening 16A and a rear door opening 16B. In the following description, only the side door 14 and the front door 14A and the front door opening 16A of the door opening 16 will be described, and the rear door 14B and the rear door opening 16B will be omitted from the description.

[0070] The front door 14A includes a door body 14a for opening and closing the front door opening 16A. The door body 14a of the front door 14A includes: an inner panel 20 located on the inner side in the vehicle width direction; an outer panel (not shown) located on the outer side in the vehicle width direction relative to the inner panel 20; and a door anti-collision beam 40 located between the inner panel 20 and the outer panel in the vehicle width direction. The inner panel 20 and the outer panel are plate-shaped metal components, and the door anti-collision beam 40 is a long strip (rod-shaped) metal component.

[0071] The door anti-collision beam 40 is a cylindrical component with a hollow circular cross section. It is installed in the door body 14a of the front door 14A and extends along the front-rear direction of the vehicle body 10 (more specifically, an inclined front-rear direction from the front to the rear and from top to bottom).

[0072] The front end 40a of the door anti-collision beam 40 is fixed to the upper part 20a of the front side of the inner panel 20. Moreover, the rear end 40b of the door anti-collision beam 40 is fixed to the lower part 20b of the rear side of the inner panel 20. That is, the door anti-collision beam 40 extends obliquely from the upper part of the front side (near the corner of the upper front side) of the front door 14A toward the lower part of the rear side (near the corner of the lower rear side).

[0073] Furthermore, the vehicle body 10 of this embodiment includes a locking mechanism 50, which is used to connect the front door 14A to the center pillar 17, which is a side component of the vehicle body, when the front door 14A is closed. Figure 2 This is a view of the lower rear end of the front door 14A from the side, specifically showing the rear end 40b of the door impact beam 40 and its vicinity. Furthermore, Figure 3 This is a view of the lower rear end of the front door 14A from the rear side, and it shows the latch hook 60 of the locking mechanism 50. Figure 4 This is a diagram showing the lower rear end of the front door opening 16A, and also a diagram showing the insertion hole 70 of the latch mechanism 50 provided on the side of the vehicle body 10. Figure 5 It means and Figure 3 A cross-sectional view of the location corresponding to arrow AA. Additionally, Figure 5 In addition to the cross-section of the front door 14A, the cross-section of the body 10 (center pillar 17 and front door opening 16A) is also shown.

[0074] The locking mechanism 50 comprises the following parts: a locking hook (locking member) 60 connected to the rear end 40b of the door impact beam 40; and an insertion hole (locked part) 70 provided around the front door opening 16A in the vehicle body 10 (near the lower end 17a of the center pillar 17). The insertion hole 70 is a hole for the locking hook 60 to be inserted and locked. Furthermore, when the front door 14A is closed, the rear end 40b of the door impact beam 40, the locking hook 60 of the locking mechanism 50, and the insertion hole 70 are positioned to coincide with each other when viewed from the vehicle width direction (approximately the same position in both the front-rear and vertical directions).

[0075] like Figure 2As shown, a bracket 80 is provided to mount the rear end 40b of the door anti-collision beam 40 to the inner panel 20. The rear end 40b of the door anti-collision beam 40 is fixed to the surface (outer side in the vehicle width direction) 20c of the inner panel 20 via the bracket 80. Furthermore, a latching hook 60 is fixed to the bracket 80. That is, the latching hook 60, which is mounted on the back side (inner side in the vehicle width direction) 20d of the inner panel 20, is fixed to the bracket 80 by tightening bolts 85. In other words, by tightening bolts 85 that penetrate the inner panel 20, the bracket 80 mounted on the surface 20c of the inner panel 20 and the latching hook 60 mounted on the back side 20d are connected and fixed. Additionally, a reinforcing member 87, which is a metal plate-shaped member, is placed between the back side 20d of the inner panel 20 and the latching hook 60.

[0076] Moreover, such as Figure 2 As shown, the bracket 80 is a component formed by bending a sheet metal, and includes: a crash beam fixing part 81 for fixing the rear end 40b of the door crash beam 40; and a pair of extensions 82, 82, extending along the long side L2 of the door crash beam 40 on the upper side (one side of the direction intersecting the long side L2 of the door crash beam 40) and the lower side (the other side of the direction intersecting the long side L2 of the door crash beam 40) of the crash beam fixing part 81. The crash beam fixing part 81 is a portion of the sheet metal constituting the bracket 80 that is bent into a curved surface shape along the outer surface (cylindrical surface) of the rear end 40b of the door crash beam 40, and the rear end 40b of the door crash beam 40 is clamped by the crash beam fixing part 81. Furthermore, bolts 85 are inserted into bolt holes (not shown) provided in the pair of extensions 82, 82 of the bracket 80 for fixing. Therefore, the locking hook 60 (via bolt 85) is fixed to a pair of extensions 82, 82 of the bracket 80.

[0077] The latch 60 includes a first component 60A and a second component 60B formed by bending a metal plate-like member. The first component 60A is a plate-like member with a generally L-shaped cross-section, having a first mounting portion (mounting surface) 61a mounted on the front door 14A (inner panel 20 and bracket 80) and a first protrusion (insertion portion) 62a extending from the end of the first mounting portion 61a toward the inner side (cargo compartment side) in the vehicle width direction. The second component 60B is a plate-like member with a generally L-shaped cross-section, having a second mounting portion (mounting surface) 61b mounted on the front door 14A (inner panel 20 and bracket 80) and a second protrusion (insertion portion) 62b extending from the second mounting portion 61b toward the inner side (cargo compartment side) in the vehicle width direction.

[0078] Furthermore, the first protrusion 62a of the first member 60A and the second protrusion 62b of the second member 60B overlap each other. For example... Figure 3As shown, the first protrusions 62a and the second protrusions 62b are along their long sides ( Figure 3 The direction of arrow L1) is along the long side of the door anti-collision beam 40. Figure 3 The direction of the intersection of arrow L2 and the direction of the vertical (more specifically, the inclined vertical direction from top to bottom and from back to front) extends into a long strip. Furthermore, as... Figure 5 As shown, the first mounting portion 61a of the first component 60A extends from the base of the first protrusion 62a toward the front side of the vehicle body 10, and the second mounting portion 61b of the second component 60B extends from the base of the second protrusion 62b toward the rear side of the vehicle body 10, and they extend in different directions. That is, the first component 60A and the second component 60B of the latch 60 are both plate-shaped components with an approximately L-shaped cross-section, and they are joined together in a back-to-back manner, and in this state are installed on the back side 20d of the inner panel 20 of the front door 14A.

[0079] Furthermore, the insertion hole 70 is located near the lower end 17a of the center pillar 17 in the vehicle body 10 and near the lower part of the rear side of the front door opening 16A, forming a bottomed recess that opens outward in the vehicle width direction and is recessed inward (towards the passenger compartment side) in the vehicle width direction. The insertion hole 70 is positioned so that, when viewed from the vehicle width direction with the front door 14A closed, it coincides with the protrusions 62 (first protrusion 62a and second protrusion 62b) of the engaging hook 60. When the front door 14A is closed, the protrusions 62 of the engaging hook 60 are inserted and engaged. Moreover, as... Figure 5 As shown, when the protrusion 62 of the latching hook 60 is inserted into the insertion hole 70, the surface of the protrusion 62 of the latching hook 60 (the surface on the front side of the first protrusion 62a) and the inner surface 70a on the front side of the insertion hole 70 are substantially parallel to each other, and these surfaces are arranged facing each other.

[0080] As explained above, the locking structure of the door anti-collision beam in this embodiment includes: a front door 14A, which is closable and mounted on the vehicle body 10; and a locking mechanism 50 for connecting the front door 14A to the lower end 17a of the center pillar, which is a side member of the vehicle body, when the front door 14A is closed. The front door 14A includes: an inner panel 20 and an outer panel, which are respectively provided on the inner and outer sides of the vehicle body 10 in the vehicle width direction; and a long strip-shaped door anti-collision beam 40, which is disposed between the inner panel 20 and the outer panel in the vehicle width direction and extends along the front-rear direction of the vehicle body 10. Furthermore, the locking mechanism 50 includes: a locking hook (locking member) 60 connected to the rear end 40b of the door anti-collision beam 40; and an insertion hole (locked part) 70 provided at the lower end 17a of the center pillar 17, so that the locking hook 60 is locked (for the locking hook 60 to be inserted). When the front door 14A is closed, the rear end 40b of the door anti-collision beam 40, the locking hook 60 of the locking mechanism 50, and the insertion hole 70 are arranged in a position that overlaps with each other when viewed from the vehicle width direction.

[0081] Furthermore, the latching mechanism 50 has a latching hook 60 with a protrusion 62 (first protrusion 62a and second protrusion 62b) protruding from the rear end 40b of the door anti-collision beam 40 toward the inside in the vehicle width direction, and an insertion hole 70 is a hole that opens toward the outside in the vehicle width direction, and the protrusion 62 is inserted and latched into the insertion hole 70.

[0082] According to the locking structure of this embodiment, when a load caused by a side collision (side impact) is input to the door anti-collision beam 40, the engaging hook 60 (protrusion 62) is displaced inward (towards the passenger compartment side) in the width direction of the door anti-collision beam 40 due to the displacement of the load, and is thus displaced in the direction of being pushed into (deeper inserted) into the insertion hole 70. Therefore, the risk of the protrusion 62 of the engaging hook 60 dislodging from the insertion hole 70 can be reduced. Thus, a simple structure can be used to effectively prevent the locking mechanism 50 from disengaging during a side collision. Therefore, a tensile force in the long-side direction can be more effectively applied to the door anti-collision beam 40, thereby effectively suppressing the deflection of the door anti-collision beam 40 inward (towards the passenger compartment side) due to the load of a side collision.

[0083] Furthermore, in the locking structure of this embodiment, the protrusion 62 of the locking hook 60 is a long strip extending in the direction L1 of its long side, which intersects with the direction L2 of the long side of the door anti-collision beam 40.

[0084] According to the structure, when the load caused by a side collision of the vehicle causes the central portion of the door anti-collision beam 40 to deform in a manner that is squeezed into the side of the passenger compartment than the two ends 40a, 40b, and the protrusion 62 of the latch hook 60 is displaced toward the central side of the long side of the door anti-collision beam 40, the surface of the protrusion 62 of the latch hook 60 (the surface on the front side of the first protrusion 62a) abuts (so-called surface abuts) against the inner surface 70a of the insertion hole 70 on the side of the door anti-collision beam 40 (refer to...) Figure 5 Therefore, it is possible to more effectively prevent the protrusion 62 of the locking hook 60 from disengaging from the insertion hole 70. That is, the protrusion 62 of the locking hook 60 is an elongated strip extending in the direction L1 of its long side, intersecting the direction L2 of the long side of the door anti-collision beam 40. As a result, the surface of the protrusion 62 abuts against the inner surface 70a of the insertion hole 70, thereby increasing the contact resistance (frictional resistance) between these protrusions 62 and the abutment portion of the insertion hole 70. Moreover, it is possible to effectively distribute the load applied to the abutment portion of the protrusion 62 and the insertion hole 70, so even with a large load, it is possible to more effectively prevent the locking mechanism 50 from disengaging.

[0085] Furthermore, the locking structure of this embodiment includes a bracket 80 for mounting the rear end 40b of the door anti-collision beam 40 to the inner panel 20, and the locking hook 60 is fixed to the bracket 80.

[0086] According to the structure, the latch 60 is fixed to the rear end 40b of the door impact beam 40 via the bracket 80, thus preventing relative displacement between the door impact beam 40 and the latch 60. Therefore, a tensile force can be more effectively applied to the door impact beam 40 in the direction of its long side, thereby more effectively suppressing displacement (deformation) of the central portion of the door impact beam 40 in the direction of its long side toward the inner side (carriage side) in the direction of vehicle width.

[0087] Furthermore, according to the aforementioned structure, the latching hook 60 is fixed to the rear end 40b of the door anti-collision beam 40 via a bracket 80 containing a plate-shaped member that is relatively easy to process. Thus, compared with the case where the latching hook 60 is directly fixed to the rear end 40b of the door anti-collision beam 40, it is possible to simplify the vehicle (body) manufacturing process, improve manufacturing efficiency, and reduce costs.

[0088] Furthermore, in the locking structure of this embodiment, the bracket 80 includes a pair of extensions 82, 82 extending along the long side direction L2 of the door anti-collision beam 40 on the upper and lower sides (both sides in the direction intersecting the long side direction L2 of the door anti-collision beam 40) of the rear end 40b of the door anti-collision beam 40, and the locking hook 60 is fixed to these pair of extensions 82, 82 of the bracket 80.

[0089] According to the structure, the locking hook 60 is fixed to the extensions 82 of the bracket 80 located on both sides (upper and lower sides) of the rear end 40b of the cross-section and door anti-collision beam 40, thereby preventing the locking hook 60 from moving relative to the door anti-collision beam 40 in the direction of tilting towards the two sides (upper and lower sides) that intersect the long side direction during a side collision of the vehicle.

[0090] Furthermore, in the locking structure of this embodiment, the engaging hook 60 includes: a first component 60A, comprising a plate-shaped component with an approximately L-shaped cross-section, the plate-shaped component having a first mounting portion (mounting surface) 61a mounted on the front door 14A and a first protrusion (insertion portion) 62a extending from the first mounting portion 61a toward the inner side (carriage side) in the vehicle width direction; and a second component 60B, comprising a plate-shaped component with an approximately L-shaped cross-section, the plate-shaped component having a second mounting portion (mounting surface) 61b mounted on the front door 14A and a second protrusion (insertion portion) 62b extending from the second mounting portion 61b toward the inner side (carriage side) in the vehicle width direction, the first protrusion 62a of the first component 60A and the second protrusion 62b of the second component 60B overlapping each other, the first mounting portion 61a of the first component 60A and the second mounting portion 61b of the second component 60B extending in different directions.

[0091] According to the structure described above, the first component 60A and the second component 60B constituting the engaging hook 60 can be formed by bending, thus improving the productivity of the vehicle body. Furthermore, by overlapping the first protrusion 62a and the second protrusion 62b and extending the first mounting portion 61a and the second mounting portion 61b in opposite directions, it is possible to prevent the first protrusion 62a and the second protrusion 62b from tilting (the first component 60A and the second component 60B may displace in the direction in which the first protrusion 62a and the second protrusion 62b are tilted), thus more reliably preventing the engagement of the protrusion 62 of the engaging hook 60 with the insertion hole 70 from falling off.

[0092] The embodiments of the present invention have been described above, but the present invention is not limited to the described embodiments, and various modifications can be made within the scope of the technical concept described in the claims, specification, and drawings. For example, the described embodiments show the application of the locking structure of the present invention to the front door 14A, but the locking structure of the present invention can also be applied to the rear door 14B or other doors.

Claims

1. A locking structure for a car door anti-collision beam, characterized in that, include: Doors, which can be opened and closed, are installed on the vehicle body; And a locking mechanism for connecting the door to a component on the side of the vehicle body when the door is closed. The door includes: an inner panel and an outer panel, respectively located on the inner and outer sides in the vehicle width direction; and a long strip-shaped door anti-collision beam, disposed between the inner panel and the outer panel in the vehicle width direction, extending along the front-rear direction of the vehicle body. The locking mechanism includes: an engaging member connected to the end of the door anti-collision beam; and a engaged portion, a member disposed on the side of the vehicle body, which engages the engaging member. With the door closed, the end of the door anti-collision beam is positioned so that the engaging member and the engaged portion of the latching mechanism coincide when viewed from the vehicle width direction. The engaging member includes a protrusion that projects inward from the end of the door anti-collision beam in the vehicle width direction, and the engaged portion includes an insertion hole that opens outward in the vehicle width direction for the protrusion to be inserted. The protrusion of the engaging member is elongated, with its long side extending in a direction intersecting the long side of the door anti-collision beam. The locking structure of the door anti-collision beam includes: The bracket mounts the end of the door anti-collision beam to the inner panel. The engaging member is fixed to the bracket. The bracket includes a pair of extensions that extend along the long side of the door impact beam on both sides in a direction intersecting the long side direction relative to the end of the door impact beam. The engaging member is fixed to the pair of extensions of the bracket.

2. The locking structure of the door anti-collision beam according to claim 1, characterized in that, The engaging component includes: The first component includes an L-shaped plate-like member having a first mounting portion installed in the door and a first protrusion extending inward from the first mounting portion toward the vehicle width direction; and The second component includes an L-shaped plate-like member having a second mounting portion installed in the door and a second protrusion extending inward from the second mounting portion toward the vehicle width direction. The first protrusion of the first component overlaps with the second protrusion of the second component. The first mounting portion of the first component and the second mounting portion of the second component extend in different directions.

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