JPH0714587Y2 - Locking device for automobile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a lock device for an automobile.

(Prior Art) In the publicly known Japanese Utility Model Laid-Open No. 64-2966, a metal plate having a striker entrance groove formed in the central portion, through holes formed on both sides of the entrance groove of the metal plate, and the metal Packing made of rubber synthetic resin, etc. that almost entirely encloses the plate,
Structure consisting of a through hole of the metal plate and a latch that is axially locked by a shaft that is inserted through the through hole of the packing, and a ratchet that is axially locked by the through hole of the metal plate and the shaft through the through hole of the packing Is described.

Further, in the publicly known Japanese Utility Model Publication No. 61-1565, there is described a metal plate and a guide plate superposed on the metal plate.

(Problems to be solved by the invention) Among the known examples, in the former, since the metal plate is almost entirely surrounded by packing such as rubber synthetic resin, the packing exists between the locking device and the vehicle body side. The locking device cannot be firmly fixed to the vehicle body.

Among the known examples, the latter has a packing made of rubber synthetic resin or the like superposed on a metal plate, but since the latter packing does not surround the left and right inner peripheral walls of the striker entry groove, the metal striker has a metal inner peripheral wall. The problem of noise when closing the door has not been solved.

Therefore, instead of enclosing the metal plate almost entirely with packing as in the former, a method of polymerizing packing such as rubber synthetic resin on the metal plate as in the latter is used, and with packing, the left and right sides of the striker entry groove are I would like to surround the surrounding wall, but in this case,
Naturally, another problem such as packing displacement or floating occurs, and the present application solves this point.

(Means for Solving the Problem) Therefore, according to the present invention, the striker entrance groove 4 is formed in the central portion of the tip end side 6, and the rising edge 19 which stands up in the upper surface direction is formed on the left and right sides except the entrance groove portion. A metal plate 5 for fixing the lower surface side against the vehicle body or the door, through holes 9 and 10 formed on both the left and right sides of the entrance groove 4 of the metal plate 5, and the left and right standing of the upper surface of the metal plate 5. A through hole 21, which fits into the rim 19 and overlaps to match the through holes 9 and 10 of the metal plate;
22 and packings 20 made of rubber synthetic resin or the like integrally formed with protrusions 24, 24 having substantially the same thickness as the inner peripheral walls 23, 23 surrounding the left and right inner peripheral walls 23, 23 of the entrance groove 4, and the metal plate Latch 2 that is normally rotated by engaging with a striker when the door is closed by the shaft 7 inserted through the through hole 9 of the packing and the through hole 21 of the packing.
Then, the shaft 8 is inserted into the through hole 10 of the metal plate and the packing through hole 22, and is locked by the shaft 8 to the engaging step portion 13 of the latch.
Ratchet 3 that engages with each other to prevent reverse rotation of the latch
And a spring 14 for pulling the latch and the ratchet to each other, and the left and right inner peripheral walls 23 of the entrance groove 4,
Notch portions 25, 25 are formed at the inlet of 23, and the protrusion 24,
24 is a lock device for an automobile, in which projections 26, 26 engaging with the notches 25, 25 are integrally formed.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 is a lock device for a trunk (same for a rear door of a hatchback) fixed to a vehicle body, which is a latch 2 and a ratchet 3 for stopping reverse rotation of the latch 2. Is installed.

Numeral 4 is a striker entrance groove formed in the lock device 1, into which the striker enters. The entry groove 4 is formed at the center of the tip side 6 of the metal plate 5 of the lock device 1.

The latch 2 and the ratchet 3 sandwich the entry groove 4 and are located on both sides thereof. 7 is a shaft for pivotally mounting the latch 2 on the metal plate 5, 8 is a shaft for pivotally mounting the ratchet 3 on the metal plate 5, and 9 is a through hole formed in the metal plate 5 through which the shaft 7 is inserted ( 3) and 10 are through holes (third part) formed in the metal plate 5 through which the shaft 8 is inserted.
Figure).

An engaging recess 11 for engaging the striker to rotate the latch 2 and an engaging step for engaging the claw 12 of the ratchet 3 with the outer peripheral edge of the latch 2 to prevent the latch 2 from reversing. And part 13 are formed. Further, between the latch 2 and the ratchet 3, there is provided a reduction spring 14 having the action of reversing the latch 2 and engaging the claw 12 of the ratchet 3 with the engagement step portion 13 of the latch 2. , The protrusions 15 of the latch 2 and the protrusions 18 of the ratchet 3 are engaged with each other.

The shaft 8 that locks the ratchet 3 is provided with the entrance groove 4
The ratchet 3 is mounted in the vicinity of the inlet, and one end 16 of the ratchet 3 is fixed to the shaft 8 and the other end 16 'extends near the base side 17 of the metal plate 5 (Fig. 1).

A standing edge 19 is formed on the outer peripheral edge of the metal plate 5 except the part of the entrance groove 4 on the tip side 6 and the base side 17.
The height of the rising edge 19 is substantially the same as the height of the heads of the shafts 7 and 8. The upper surface of the metal plate 5 is open.

A packing 20 made of rubber, synthetic resin or the like is provided between the metal plate 5 and the latch 2 and the ratchet 3. Through holes 21 and 22 through which the shaft 7 and the shaft 8 pass are formed in the packing 20 (see FIGS. 5 and 6).
Outside, protrusions 24, 24 surrounding the left and right inner peripheral walls 23, 23 of the entrance groove 4 are formed.

The thickness of the protrusions 24, 24 is preferably substantially the same as the thickness of the left and right inner peripheral walls 23, 23, and completely surrounds the left and right inner peripheral walls 23, 23. Notches 25, 25 are formed in a part of the left and right inner peripheral walls 23, 23, and the protrusions 26, 26 formed on the protrusions 24, 24 are fitted into the notches 25, 25 to fit the packing 20. To prevent coming off.

In the embodiment, since the protrusions 24, 24 are not formed in the abutting portion 27 of the entrance groove 4, the metal plate 5 is exposed in the abutting portion 27 of the entrance groove 4, but the protrusion 2
4, 24 may be formed at the abutment portion 27 of the entry groove 4.

28 is a screw hole for fixing the lock device 1 to the vehicle body or the door.

(Operation) Next, the operation will be described.

The packing 20 of FIGS. 5 and 6 is superposed on the tip side 6 of the metal plate 5 of FIG. 3, and the latch 2 and the ratchet 3 are superposed on the packing 20, and the through hole 21 of the packing 20 and the metal plate 5 are superposed. The through hole 9 of the packing 20 and the through hole 10 of the metal plate 5 are aligned with each other, and the shaft 7 of the latch 2 is fitted into the through hole 21 and the through hole 9, respectively. The shaft 8 of the ratchet 3 is inserted into the holes 10 to fix the latch 2 and the ratchet 3.

Further, the protrusions 24, 24 of the packing 20 are fitted to the inner peripheral walls 23, 23 of the striker entry groove 4 of the metal plate 5, respectively. Since the thickness of the protrusions 24, 24 is substantially the same as the thickness of the left and right inner peripheral walls 23, 23, the left and right inner peripheral walls 23, 23 are completely surrounded by the protrusions 24, 24. Further, cutouts 25, 25 are formed in a part of the left and right inner peripheral walls 23, 23, and the projections 24, 25 are formed in the cutouts 25, 25.
The protrusions 26, 26 formed on the 24 are fitted together.

Then, a spring 14 is applied between the protrusion 15 of the latch 2 and the protrusion 18 of the ratchet 3 to reverse the latch 2 (counterclockwise in FIG. 1), and the ratchet 3 is attached to the engaging step portion 13 of the latch 2. Are urged to engage.

The lock device 1 formed in this way abuts it at a predetermined position, inserts a screw into the screw hole 28 to fix it, and when the door is closed in this state, the striker enters the entry groove 4 and the latch 2
1, the latch 2 is rotated clockwise in FIG. 1, and the claw 12 of the ratchet 3 engages with the engagement step portion 13 of the latch 2 to prevent the latch 2 from rotating in the reverse direction and to be locked. The packing 20 includes the through hole 21 of the packing 20 and the metal plate 5.
The through hole 9 of the packing 20 and the through hole 10 of the metal plate 5 are aligned with each other, and the shaft 7 of the latch 2 is fitted into the through hole 21 and the through hole 9, respectively. The shafts 8 of the ratchet 3 are inserted into the holes 10, respectively, and the left and right inner peripheral walls 2
Notches 25, 25 are formed in a part of 3, 23, and the notches 25, 2
Since the projections 26, 26 formed on the protrusions 24, 24 are fitted to the 5's, the packing 20 does not move (displace) at all.

Since the projecting portions 24, 24 of the packing 20 are fitted into the inner peripheral walls 23, 23 of the striker entrance groove 4, respectively, collision noise between the striker peculiar to the automobile and the left and right inner peripheral walls 23, 23 is prevented.

Further, since the spring 14 is stretched between the protrusion 15 of the latch 2 and the protrusion 18 of the ratchet 3, the latch 2 can be reversed by one spring and the ratchet 3 can be engaged with the latch 2.

(Effect) According to the present invention, the striker entry groove 4 is formed in the central portion of the tip end side 6, and the upright edges 19 that stand upright in the upper surface are formed on the left and right sides except the entry groove portion, and the lower surface side contacts the vehicle body or the door. A metal plate 5 that is fixed in contact with the metal plate 5, and the entry groove 4 of the metal plate 5
Through holes 9 and 10 formed on both left and right sides of the metal plate 5, and through holes 21 that fit into the right and left upright edges 19 on the upper surface of the metal plate 5 and overlap with each other, and match the through holes 9 and 10 of the metal plate, 22 and the inner peripheral walls 23, 23 surrounding the left and right inner peripheral walls 23, 23 of the entrance groove 4
The packing 20 made of rubber synthetic resin or the like integrally formed with the protrusions 24, 24 having substantially the same thickness as the above, the shaft 7 inserted through the through hole 9 of the metal plate and the through hole 21 of the packing, and the door is closed. At this time, the latch 2 is engaged with the striker to rotate in the forward direction, the shaft 8 is inserted through the through hole 10 of the metal plate and the through hole 22 of the packing, and the claw 12 is engaged with the engaging step portion 13 of the latch. Ratchet 3 for preventing the reverse rotation of the latch, and a spring for pulling the latch and ratchet to each other.
14 and has notches 25 and 25 formed at the inlets of the left and right inner peripheral walls 23 and 23 of the entrance groove 4, and the protrusions 24 and 24 have protrusions 26 that engage with the notches 25 and 25. , 26 are integrally formed as a locking device for an automobile, a. Since the packing 20 made of rubber synthetic resin or the like is not provided on the lower surface side of the metal plate 5, the packing surface made of rubber synthetic resin or the like is not provided on the mounting surface. Unlike the one in Japanese Utility Model Publication No. 64-2966, in which
Can be firmly attached.

(B) Since the packing 20 made of rubber synthetic resin or the like is fitted inside the left and right upright edges 19 which are erected in the upper surface direction of the metal plate 5, the packing 20 is hard to be removed.

C, since the packing 20 made of rubber synthetic resin or the like is integrally formed with the protrusions 24, 24 having substantially the same thickness as the inner peripheral walls 23, 23 surrounding the left and right inner peripheral walls 23, 23 of the striker entry groove 4, Since the inner peripheral walls 23, 23 are surrounded by the protrusions 24, 24, it is possible to prevent abnormal noise from being generated even if the striker collides when the door is closed.

D. Cutouts 25, 25 are formed at the inlets of the left and right inner peripheral walls 23, 23 of the entrance groove 4 of the metal plate 5, and the cutouts 25 are formed in the protrusions 24, 24 formed integrally with the packing 20. Since the projections 26, 26 that engage with the projections 25 are integrally formed, the projections 26, 26 are engaged with the cutouts 25, 25, and the positions of the cutouts 25, 25 are the entrance portions of the entrance groove 4. Therefore, even if the striker collides with the projecting portions 24, 24, the projecting portions 24, 24 do not shift in the striker entering direction and have durability.

Has the effect.

[Brief description of drawings]

1 is an overall side view, FIG. 2 is a cross-sectional plan view, FIG. 3 is an overall side view of the metal plate 5, FIG. 4 is a right side view of FIG. 3, and FIG. 5 is a plan view of packing. 6 is a bottom view of the same, and FIG. 7 is a side view of a metal plate fitted with packing. Explanation of symbols 1 ... Lock device, 2 ... Latch, 3 ... ratchet,
4 ... striker entry groove, 5 ... metal plate, 6 ...
Tip side, 7 ... shaft, 8 ... shaft, 9 ... through hole, 10 ... through hole, 11 ... engaging recess, 12 ... claw, 13 ... engaging step, 14 ...
… Spring, 15 …… Protrusion, 16 …… One end, 16 ′ …… Other end, 17…
… Base side, 18… Projection, 19… Standing edge, 20… Packing, 21… Through hole, 22… Through hole, 23… Left and right inner peripheral wall, 24…
… Projection, 25 …… Notch, 26 …… Protrusion, 27 …… Abutting part, 28 …… Screw hole.

Claims (1)

[Scope of utility model registration request] 1. A striker entry groove 4 is formed at the center of the tip end side 6, and upright edges 19 which stand upright in the upper surface are formed on the left and right sides except the entry groove portion, and the lower surface side is brought into contact with a vehicle body or a door. The metal plate 5 to be fixed, the through holes 9 and 10 formed on the left and right sides of the entrance groove 4 of the metal plate 5, and the right and left upright edges 19 on the upper surface of the metal plate 5 are fitted and polymerized. The inner peripheral wall 23 surrounding the through holes 21 and 22 that match the through holes 9 and 10 of the metal plate and the left and right inner peripheral walls 23 and 23 of the entrance groove 4,
Packing 20 made of rubber synthetic resin or the like integrally formed with protrusions 24, 24 having substantially the same thickness as 23, and the through hole 9 of the metal plate.
And a latch 2 which is locked by a shaft 7 inserted through a through hole 21 of the packing and is normally rotated by engaging a striker when the door is closed, a through hole 10 of the metal plate and a shaft inserted through a through hole 22 of the packing. It is composed of a ratchet 3 which is axially locked by 8 to prevent the latch 12 from being reversed by the pawls 12 engaging with the engaging step portion 13 of the latch, and a spring 14 for pulling each other between the latch and the ratchet. Cutouts 25, 25 are formed at the inlets of the left and right inner peripheral walls 23, 23 of the entrance groove 4, and projections 24, 26 that engage with the cutouts 25, 25 are integrally formed on the protrusions 24, 24. Formed locking device for automobiles.