JP4625890B2 - Car lock striker - Google Patents

Description

  The present invention relates to a striker for an automobile lock that can be engaged with a locking device such as an automobile door, a trunk lid, or a back door.

  In an automotive lock striker, by bending a single continuous metal plate, the left and right mounting plate parts that are fixed to the mounting surface of the vehicle body with bolts are erected substantially perpendicular to each mounting plate portion. In some cases, the left and right engaging plate portions are integrally formed (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 55-6920

  However, since the lock device (not shown) is engaged with the engaging column portions 102a and 102b provided on the left and right engaging plate portions 101a and 101b in the above-described automobile lock striker, for example, as shown in FIGS. Thus, when a load F acts on the striker 100 from the right direction (lateral direction) due to a side collision or the like of the automobile, the left and right engagement plate portions 101a and 101b are bent left and right as shown by a solid line in FIG. If the portions 103a and 103b are tilted to the left and then further deformed, cracks A will be formed in the right bent portion 103b on the outer side of the tilt and break, which causes a decrease in strength. . This is considered because tensile stress concentrates on the corner of the bent portion 103b when the right engaging plate portion 101b is inclined and deformed to the left.

  In view of the above problems, an object of the present invention is to provide an automotive lock striker having excellent strength by dispersing stress.

In order to solve the above-mentioned problem, in the first invention, by bending a single metal plate, left and right mounting plate portions fixed to the mounting surface, substantially perpendicular to the left and right mounting plate portions, and In an automotive lock striker in which the opposite back surfaces are in contact with each other and the left and right engagement plate portions that can mesh with the lock device are integrally formed, the portions that connect the left and right engagement plate portions to the left and right mounting plate portions, respectively. to provided a single inclined flat surface portions of the left and right forming the stress dispersion portion inclined to increasing the interval back to back with one another in accordance with approaches from each of the lower end of the left and right engaging plate portion to the mounting plate portion of the right and left , the width of height and lateral direction of the single-slope flat surface portions of the right and left, and at least the metal plate of the plate thickness more than twice, the bending of the left and right single inclined plane portion with respect to the left and right mounting plate portion section Interior angle and front The inner angles of the bent portions of the left and right single inclined plane portions with respect to the left and right engaging plate portions are obtuse angles, respectively, and the rear upper ends of the left and right single inclined plane portions are at the bottom of the rear surfaces of the left and right engaging plate portions. Welding is performed, and the welded portion is ruptured when an excessive force acts on the striker from the left and right directions and the left and right engaging plate portions are inclined and deformed . With this configuration, when a load in the lateral direction is input to the striker by the side collision or the like, with the inclination deformation of the engaging plate portion, since the deformation single inclined flat surface portion at the same time, the stress is dispersed, this As a result, the strength can be improved.

In the second aspect of the present invention, the left and right mounting plate portions fixed to the mounting surface by bending a single metal plate, and the back surfaces substantially perpendicular to the left and right mounting plate portions and facing each other. In an automotive lock striker in which the left and right engagement plate portions that are in contact with each other and can be engaged with the lock device are integrally formed, the left and right engagement plate portions are connected to the left and right attachment plate portions, respectively. Left and right single curved surface portions that form a stress distribution portion that curves inward so that the distance between the back surfaces of each of the engaging plate portions gradually increases as approaching from the lower end of the engagement plate portion to each other, The radius of the left and right single curved surface portions is at least twice as large as the thickness of the metal plate , and the rear upper ends of the left and right single curved surface portions are welded to the lowermost back portions of the left and right engaging plate portions. The welded portion is Excessive force from the lateral direction with respect to the serial striker so as to break when the engagement plate portion of the right and left acts is deformed slope. With this configuration, when a lateral load is input to the striker due to a side collision or the like, the single curved surface portion is also deformed simultaneously with the inclination deformation of the engaging plate portion, so that the stress is dispersed. The strength can be improved.

According to the present invention, when a lateral load is input to the striker, the stress dispersion portion is also deformed along with the inclination deformation of the engagement plate portion, so that the stress is dispersed and the strength can be improved.
Furthermore, if the left and right engagement plate portions are tilted and a force is applied that causes the rear surfaces of the left and right engagement plate portions to be misaligned with each other, the welded portion is broken and the left and right engagement plate portions can be misaligned. Therefore, stress is less concentrated on the bent portion, and early breakage of the bent portion can be prevented.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a striker according to the present invention, FIG. 2 is a front view, FIG. 3 is a plan view, FIG. 4 is a bottom view, FIG. 5 is a side view, and FIG. FIG. 7 is a front sectional view showing a deformed state of the striker.

The striker 1 meshes with a locking device (not shown) provided on a back door (not shown) pivotally supported by a hinge shaft facing the left and right direction at the rear of the roof of the automobile so as to be opened and closed in the vertical direction. As shown mainly in FIGS. 2 and 6 , the left and right mounting plate portions 3 and 3 fixed to the mounting surface 2 of the vehicle body and the left and right mounting plate portions 3 and 3 are mainly held as shown in FIGS. substantially a right angle left and right engaging plate portions 4, the each mounting plate portion 3, 3 and a single inclined flat surface portions 5, 5 of the left and right forming the stress dispersion portion for connecting the respective engagement plate portions 4,4 Te And formed by bending a single continuous metal plate so that the back surfaces of the left and right engaging plate portions 4 and 4 are in contact with each other.

  Bolt insertion holes 31, 31 into which bolts 6, 6 for fixing the mounting plate portions 3, 3 to the mounting surface 2 are inserted are formed at substantially the center of the left and right mounting plate portions 3, 3. .

The left and right engagement plate portions 4, 4 are connected to each other via a bent portion 41 that is folded downward and formed at the upper end, and penetrates in the left-right direction at substantially the center in a side view. Window holes 42 and 42 are formed, and on the front side of the window holes 42 and 42, engagement pillar portions 43 and 43 with which the locking device is engaged are formed. Note that the meshing column portions 43 and 43 are crushed in the thickness direction and formed in an arc shape to facilitate the rotation of the latch. 2, 4 , 6, and 7, the rear upper ends of the left and right engaging plate portions 4, 4 and the rear upper ends of the single left and right inclined plane portions 5, 5 are made of metal. When the plate is bent and formed, the back surfaces of the engagement plate portions 4 and 4 are fixed by welding so as not to be separated by the spring back. The welding portion 7 is set to be strong enough to bring the back surfaces of the engagement plate portions 4 and 4 into close contact with each other, and can be broken when an excessive force is applied to the striker 1 from the lateral direction. ing.

Single inclined flat surface portions 5, 5 of the left and right, so as to form a smooth slope to the surface, is inclined to gradually increases distance back to back facing each other in a front view goes downward. Thus, the interior angle θ1 and .theta.2 (FIG bending for left and right mounting plate portions 3 and the engaging plate portions 4 of the left and right single inclined flat surface portion 5,5 portions R1 and R2 (see FIG. 2,7) 2 and 7) are obtuse angles. Incidentally, external angle θ3 of the left and right single inclined flat surface portion 5,5 is preferably 45 ° back and forth. Further, (see Figure 6) the height H of the inclined surface formed on the surface of a single inclined flat surface portion 5 (the dimension from the surface of the mounting plate portion 3 to bend R1), and the base of the length L (the engaging plate The dimension from the surface of the portion 4 to the bent portion R2 is preferably at least twice the plate thickness t of the metal plate. The reason for this is short length of the slope of the single inclined flat surface portion 5, also the engaging plate portion 4 and the inclination modified as described below, the amount of deformation of a single inclined flat surface portion 5 is small, the stress This is because is not sufficiently dispersed. Therefore, in order to reliably disperse stress, a single inclined flat surface portion 5 with the inclination deformation of the engaging plate portion 4 also requires only a length capable of simultaneously deformed.

Next, the deformation | transformation of the striker 1 in this embodiment is demonstrated based on an experimental result.
In the state where the lock device is engaged with the striker 1 fixed to the mounting surface 2 of the vehicle body, when a load F is input from the lock device to the striker 1 from the right side due to a side collision or the like, as shown in FIG. The right engaging plate portion 4 facing the direction of the load F is inclined and deformed to the left so that the inner angle of each of the bent portions R1 and R2 becomes large, and the inner end of the right mounting plate portion 3 extends from the mounting surface 2. Deforms to lift up slightly. Also, a single inclined flat surface portion 5 of the left, along with the tilt deformation of the engaging plate portion 4 is deformed so as to bend slightly downwardly convex shape in a front view. Thereby, the stress when the lateral load F is applied is dispersed, and the bending portion R1 is not particularly broken early.

  Further, when the left and right engagement plate parts 4 and 4 are further inclined and deformed to the left, the rear side of the left engagement plate part 4 that is the inner side and the right engagement plate part 4 that is the outer side is displaced from each other. Occurs. In this case, if the back surfaces of the left and right engaging plate portions 4 and 4 are firmly fixed so as not to be misaligned, there is a possibility that tensile stress concentrates on the right bent portion R1 and breaks. However, in this embodiment, when a force that causes the right and left engagement plate portions 4 and 4 to be displaced from each other is applied, the welded portion 7 is broken, and the left and right engagement plate portions 4 and 4 can be displaced. For this reason, stress is not particularly concentrated on the right-side bent portion R1, and the right-side bent portion R1 does not break early.

Although the embodiment of the present invention has been described above, the following various modifications and changes can be made to the present embodiment without departing from the gist of the present invention.
(I) As shown in FIG. 8, the stress absorbing portion is a single unit that curves inward so that the interval between the back surfaces of the engaging plate portion 4 gradually increases as it approaches the mounting plate portion 3 from the lower end of the engaging plate portion 4 . The curved surface portion 8 is set, and the radius r of the single curved surface portion 8 is at least twice the thickness t of the metal plate.
(Ii) The locking device is a trunk lid or side door locking device.
(Iii) Fix the striker to the back door, trunk lid or side door.

It is a perspective view of the striker in this invention. It is a front view of a striker. It is a top view of a striker similarly. It is a bottom view of a striker similarly. It is a side view of a striker. It is the III-III line transverse cross section in FIG. It is front sectional drawing of the striker at the time of a deformation | transformation. It is front sectional drawing of the striker in other embodiment. It is a perspective view of the striker in a prior art. It is front sectional drawing of the striker at the time of a deformation | transformation similarly.

1 the striker 2 attachment surface 3 mounting plate portion 4 engaging plate section 5 inclined flat surface portion (stress dispersion portion)
6 Bolt 7 Welding part 8 Curved surface part (stress dispersion part)
31 Bolt insertion hole 41 Bent part 42 Window hole 43 Engagement pillar part R1, R2 Bending part

Claims (2)

By bending a single metal plate, the left and right mounting plate portions fixed to the mounting surface and the back surfaces that are substantially perpendicular to the left and right mounting plate portions and that face each other come into contact with each other and mesh with the locking device. In the striker of the lock for automobiles that integrally forms the left and right engaging plate parts,
The distance between the back surfaces of the left and right engagement plate portions gradually increases as they approach the left and right attachment plate portions from the lower ends of the left and right engagement plate portions at the portions connecting the left and right engagement plate portions, respectively. the provided single-slope flat surface portions of the left and right forming the stress dispersion portion inclined so as,
The height and lateral width of the single-slope flat surface portions of the right and left, and at least the metal plate of the plate thickness more than twice,
The inner angle of the bent part of the left and right single inclined plane part with respect to the left and right mounting plate parts, and the inner angle of the bent part of the left and right single inclined plane part with respect to the left and right engaging plate parts, respectively, are obtuse angles,
Weld the back upper ends of the left and right single inclined planes at the bottom of the back of the left and right engagement plate parts,
The automobile lock striker characterized in that the welded portion breaks when an excessive force acts on the striker from the left and right directions and the left and right engagement plate portions are inclined and deformed . By bending a single metal plate, the left and right mounting plate portions fixed to the mounting surface and the back surfaces that are substantially perpendicular to the left and right mounting plate portions and that face each other come into contact with each other and mesh with the locking device. In the striker of the lock for automobiles that integrally forms the left and right engaging plate parts,
The distance between the back surfaces of the left and right engagement plate portions gradually increases as they approach the left and right attachment plate portions from the lower ends of the left and right engagement plate portions at the portions connecting the left and right engagement plate portions, respectively. Left and right single curved surface portions forming a stress dispersion portion that curves inwardly
The radius of the left and right single curved surface portions is at least twice the thickness of the metal plate ,
Welding the back upper ends of the left and right single curved surface portions at the bottom of the back of the left and right engagement plate portions,
The automobile lock striker characterized in that the welded portion breaks when an excessive force acts on the striker from the left and right directions and the left and right engagement plate portions are inclined and deformed .

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