JP2000002027A - Door lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the strength of a door striker while ensuring door opening properties without the catching of the door striker even when external force is applied and the door striker is pushed against a door panel. SOLUTION: A door striker base 14 is formed in a boat shape, and a stern- side striker mounting seat surface 14b is formed in broad width while height is set in height the same as or slightly higher than a screw head 16. Even when the door striker base 14 is pushed against a door panel 13 by external force from a rear surface, the screw heads 16 are protected by the stern-side striker mounting seat surface 14b and are not caught to the door panel 13, and the door-opening loci of the screw heads 16 are ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device for holding a door panel in a closed state.

[0002]

2. Description of the Related Art As is well known, a door lock device comprises a latch attached to a front door panel or a rear door panel, and a door striker engaged with the latch. The door is kept closed by being fixed to a vehicle body such as a rear quarter panel and engaging a latch with a door striker.

In general, a door striker includes a striker base fixed to a vehicle body and a U-shaped striker body fixed to the striker base by caulking or the like, and can withstand tensile stress from the door. For example, Japanese Utility Model Application Laid-Open No. Sho 59-192567,
As disclosed in JP 79562, a bead is formed at a portion where the striker base of the striker base is fixed, or a bead is formed around the striker base as disclosed in Japanese Utility Model Publication No. 58-23887. By forming, the strength is guaranteed.

FIG. 8 shows a structure of a general door striker 1. The striker base 2 is formed in a diamond shape,
The striker body 3 is installed on a diagonal line in the horizontal direction, and is screwed to the vehicle body 4 (see FIG. 9) on a diagonal line in the vertical direction. The striker mounting seat surface 5 is formed so as to protrude in a U-shape surrounding a portion where the striker body 3 is crimped.

On the other hand, what is indicated by a chain line in the drawing is
A striker guide groove 7 for guiding the striker main body 3 is formed on the rotation side surface of the door panel 6, and a latch that engages with the striker main body 3 is provided in the striker guide groove 7.

When the door panel 6 is rotated from right to left in FIG. 7 to be closed, the front opening 7a of the striker guide groove 7 which expands in a tapered shape is engaged with the striker body 3, and the latch is eventually released. 3 and the door is locked.

[0007]

As shown in FIG. 8, when the door panel 6 is a rear door panel and the door striker 1 is fixed to the rear quarter panel 4a, the rear door panel 6 is located at the center. Pillar 8
Through a hinge 9. Rear door panel 6
When an external force indicated by arrow A is applied to the side surface of the
With this deformation, the door striker 1 is pulled into the room through the latch as shown by the arrow B.

As a result, as shown in FIG. 9, the striker main body 3 is pulled into the room by the rear door panel 6, and the portion of the striker base 2 where the striker main body 3 is fixedly lifts up and eventually deforms to improve the door opening property. become worse.

When an external force is applied from the rear surface of the vehicle body,
A force acts on the entire rear quarter panel 4a to crush the rear door panel 6 forward. At this time, the screw head of the screw for fixing the door striker 1 to the vehicle body, or the striker mounting seat surface 5 is pressed against the latch-side end surface of the rear door panel 6 and is caught, resulting in poor door opening.

In view of the above circumstances, the present invention provides a door lock device in which a striker base is unlikely to be deformed even when an external force is applied, and which can sufficiently secure the door opening property even when deformed. It is intended to be.

[0011]

In order to achieve the above object, a first door lock device according to the present invention includes a door striker having an end portion of a striker body fixed to a striker base and fixed to a vehicle body with screws. In the door panel, the striker body is guided and a striker guide groove having a latch engageable with the striker body is formed therein, wherein the striker mounting seat surface of the striker base for fixing the striker body is screwed to the door panel. It is characterized in that it is formed in the same or slightly higher convex shape as the screw head.

A second door lock device is characterized in that, in the first door lock device, the width of the striker mounting seat surface is formed at least wider than the width of the striker guide groove.

[0013] The third door lock device may be a first or second door lock device.
In the above door lock device, a mating surface that contacts the vehicle body is formed in a width direction of the striker mounting seat surface of the striker base.

A fourth door lock device is characterized in that, in the first to third door lock devices, the twill line of the striker mounting seat surface is formed in a substantially fan shape.

That is, in the first door lock device, the striker mounting seat surface for fixing the striker body of the striker base is formed in the same or slightly higher convex shape as the screw head for screwing, so that an external force is applied. Even when the striker base is pressed against the latch-side end surface of the door, the screw head is protected by the striker mounting seat surface, and the opening trajectory of the screw head is secured.

The second door lock device is different from the first door lock device in that the width of the striker mounting seat surface is formed to be at least larger than the width of the striker guide groove so that an external force is applied and the striker base latches the door. Even when the striker is pressed against the side end surface, the striker mounting seat surface does not easily bite into the striker guide groove, and the door opening property is secured.

The third door lock device is provided with a first or second door lock device.
In the door lock device, a striker base is formed in the width direction of the striker mounting seat surface of the striker base so as to abut on the vehicle body, so that even when the striker base is pulled in the indoor direction by an external force, the striker on the outer panel side. The lifting of the base is suppressed, and door opening is ensured.

In the fourth door lock device, in the first to third door lock devices, the striker base is reinforced by forming the twill line of the striker mounting seat surface into a substantially fan shape.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 11 in the figure denotes a door striker, which is fixed to a vehicle body (rear quarter panel in the present embodiment) 12 and has a latch (not shown) provided on a door panel (rear door panel in the present embodiment) 13. Engagement locks the door panel 13 at the door closing position, and includes a striker base 14 and a striker body 15 bent in a U-shape.

The striker base 14 is formed in a boat shape, the bow-side striker mounting seat surface 14a is formed in a U-shape, and the stern-side striker mounting seat surface 14b is formed in a fan-like shape. Striker mounting seat surface 14a,
14b are connected continuously via a bead 14c. or,
A mating surface 14d that contacts the vehicle body 12 is formed outside the stern side striker mounting seat surface 14b in the boat width direction.

The striker body 15 is formed by bending a metal rod into a U-shape.
Each striker mounting seat surface 14a of the striker base 14,
14b.

The striker base 14 has the bow side directed toward the outside of the vehicle body, the stern side directed toward the room, and the striker body 15 held horizontally. It is screwed and fixed.

The inner surfaces of both striker mounting seat surfaces 14a, 14b are slightly higher than the swaged head of striker body 15,
The outer surface is formed to be the same as or slightly higher than the screw head 16, and the twill wire 1 of each of the striker mounting seat surfaces 14a, 14b is formed.
4e and 14f also serve as beads. The outer width wo of the stern side striker mounting seat surface 14b is formed to be equal to or slightly larger than the maximum width of the screw head 16.

On the other hand, a striker guide groove 13a for engaging the striker body 15 is formed on the rotation-side end face of the door panel 13, and a latch (not shown) is built in the striker guide groove 13a. A frontage 13b of the striker guide groove 13a on the inner panel side is expanded in a tapered shape, and as shown in FIG.
The inner width w of the stern side striker mounting seat surface 14b of the striker base 14 is wider than the width w ′ of b.

Next, the operation of the present embodiment having the above configuration will be described. When the door striker 11 is attached to, for example, the rear quarter panel 12 and the rear door panel 13 is closed, the striker body 15 of the door striker 11 engages with the striker guide groove 13 a formed in the rear door panel 13, and at a predetermined closed position. The latch built into the striker guide groove 13a is
And the closed state is maintained.

For example, when an external force is applied from the rear surface of the vehicle body and the rear door panel 13 is squashed forward by the entire rear quarter panel 12, the door striker 11
Of the rear door panel 13 is pressed against the striker guide groove 13a of the rear door panel 13.

At this time, the height of both striker mounting seat surfaces 14a, 14b formed on the striker base 14 is set to be equal to or slightly higher than the screw head 16, and the outer width wo of the stern side striker mounting seat surface 14b. However, the screw head 16 is protected by the striker mounting seat surfaces 14a and 14b because the screw head 16 is formed to be the same as or slightly wider than the maximum width of the screw head 16.
The screw head 16 does not bite into the rear door panel 13 alone, so that the opening and closing trajectory of the screw head 16 is secured, and the door opening property of the rear door panel 13 is secured.

Further, the inner width w of the stern side striker mounting seat surface 14b is equal to the width 13b of the striker guide groove 13a.
, The stern side striker mounting seat surface 14b does not bite into the striker guide groove 13a, so that the door opening property of the rear door panel 13 can be secured.

When an external force is applied to the rear door panel 13 from the side and the rear door panel 13 is bent into the room as shown in FIG. 8, the striker base 14 is pulled by the rear door panel 13. Since the stern side of the striker base 14 is wide and the mating surfaces 14d formed on both sides of the stern side striker mounting seat surface 14b are in contact with the rear quarter panel 12, the rise of the striker base 14 on the bow side is suppressed, Door opening is ensured.

Further, since the twill wires 14e and 14f of the stern side striker mounting seat surface 14b function as reinforcing beads,
Strength against vertical pull is increased, and deformation can be further suppressed.

[0031]

According to the first aspect of the present invention, since the striker mounting seat surface to which the striker base of the striker base is fixed is formed in the same or slightly higher convex shape as the screw head for screwing, an external force is applied. Even when the striker base is pressed against the latch-side end surface of the door, the striker mounting seat surface protects the screw head, so that the screw head does not catch on the latch-side end surface, ensuring the door opening property. be able to.

According to the second aspect of the present invention, in the first aspect of the present invention, the width of the striker mounting seat surface is formed to be at least wider than the width of the striker guide groove, so that an external force is applied and the striker base is closed. Even if the striker is pressed against the latch-side end surface, the striker mounting seat surface is hard to bite into the striker guide groove, and the door opening property can be secured.

According to the third aspect of the present invention, in the first or second aspect of the present invention, the striker base is formed indoors in the width direction of the striker mounting seat surface of the striker base so as to contact the vehicle body. Even when the striker base is pulled in the direction, the lift of the striker base on the outer panel side can be suppressed, and the door opening property can be secured.

According to the invention described in claim 4, claims 1 to 1 are provided.
In the invention according to any one of the third to third aspects, the striker base is reinforced and hardly deformed by forming the twill line of the striker mounting seat surface into a substantially fan shape.

[Brief description of the drawings]

FIG. 1 is a front view of a door lock device according to an embodiment.

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is a front view of the door striker.

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a right side view of FIG.

FIG. 6 is a front view of the same striker base.

FIG. 7 is a front view of a conventional door lock device.

FIG. 8 is an explanatory view showing a state where an external force is applied to the rear door from the side.

FIG. 9 is an explanatory view of a state in which the striker base is deformed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Door striker 12 ... Body 13 ... Door panel 13a ... Striker guide groove 14 ... Striker base 14a, 14b ... Striker mounting seat surface 14d ... Mating surface 14e, 14f ... Ridge line (of the striker mounting seat surface) 15 ... Striker main body 16 ... Screw Head w ... width of striker mounting seat w '... width of striker guide groove

Claims (4)

[Claims] A door striker having an end portion of a striker body fixed to a striker base is fixedly screwed to a vehicle body, and a latch that guides the striker body to a door panel and has an internal latch engageable with the striker body is provided inside. A door lock device having a striker guide groove having a striker mounting seat surface on which the striker body of the striker base is fixed is formed in the same or slightly higher convex shape as the screw head for screwing. Locking device. 2. The door lock device according to claim 1, wherein the width of the striker mounting seat surface is formed wider than at least the width of the striker guide groove. 3. The door lock device according to claim 1, wherein a mating surface that abuts on the vehicle body is formed in a width direction of the striker mounting seat surface of the striker base. 4. The door lock device according to claim 1, wherein the twill line of the striker mounting seat surface is formed in a substantially fan shape.