# US 11,898,383 B2 · Hood lock device

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- Number: US 11,898,383 B2
- Document ID: US11898383B2
- Status: Granted
- Kind: B2
- Application number: 17/442,753
- Filed: 2020-04-02
- Published: 2022-06-09
- Granted: 2024-02-13
- Earliest claimed: 2019-06-12
- Assignees: Mitsui Kinzoku Act Corporation
- Applicants: Mitsui Kinzoku Act Corporation
- Inventors: Kumiko Sato
- Web page: https://patentgrep.com/patent/US11898383B2

## CPC

- B62D 25/12: Parts or details thereof (locks E05B, {E05B83/16; devices for holding open E05C17/00, e.g. while carrying oversize objects E05C17/042}; hinges E05D; counterbalancing means E05F; {checks, stops, buffers E05F5/00; } springs, {e.g. pneumatic springs} F16F)
- E05B 83/24: for car bonnets
- E05B 85/10: Handles
- E05C 3/24: in the form of a bifurcated member {(automatic catches with a bifurcated latch E05C19/024; locks with a bifurcated bolt E05B65/0046, E05B85/243)}
- E05B 85/24: Bolts rotating about an axis
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)
- E05B: LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05C: BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS (latching means for sideboard or tailgate structures for vehicles B62D, {B62D33/02}; fastening devices for constructional or engineering elements E04, F16B; locks, fastening devices structurally or operatively combined or having significant cooperation with locks E05B; means for operating or controlling wing fasteners in conjunction with mechanisms for moving the wing E05F)

## Abstract

A hood lock device has a base plate having a striker groove, a primary latch configured to fasten a hood in a totally closed state, and a secondary latch, the secondary latch has a latch main body of steel and a handle of resin, and the latch main body has a forcing meshing portion configured to come into engagement with a striker passing across a half opening position and moving to a totally closing position and to be pressed in a latching direction opposite to an unlatching direction by the striker in a case that a hook portion configured to lock the striker recedes from the striker groove and a mounting portion provided adjacent to the forcing meshing portion and on which the handle is mounted.

## Claims

### Claim 1

A hood lock device comprising:
a base plate fixed to a vehicle body and having a striker groove into which a striker provided on a hood that is opened from and closed towards the vehicle body enters in response to a closing action of the hood;
a primary latch configured to fasten the hood in a totally closed state by locking the striker in a totally closing position in the striker groove; and
a secondary latch configured to fasten the hood in a half opened state by locking the striker in a half opening position situated closer to an opening side of the striker groove than the totally closing position,
wherein the secondary latch comprises:
a latch main body, which is made of steel, and which is rotatable relative to the base plate between a secondary latching position and a secondary unlatching position, the latch main body being configured to cause an engagement portion, which is configured to lock the striker, to enter the striker groove or to recede from the striker groove in accordance with a rotation of the latch main body, the engagement portion entering the striker groove in a case that the latch main body is placed in the secondary latching position, the engagement portion receding from the striker groove in a case that the latch main body is placed in the unlatching position; and
a handle, which is made of resin, and which is configured to receive an operation for causing the latch main body to rotate in an unlatching direction in which the engagement portion recedes from the striker groove, and
wherein the latch main body comprises:
a forcing meshing portion configured to come into engagement with the striker passing across the half opening position and moving to the totally closing position and to be pressed in a latching direction, which is opposite to the unlatching direction, by the striker in a case that the latch main body is placed at the secondary unlatching position and the engagement portion recedes from the striker groove; and
a mounting portion provided adjacent to the forcing meshing portion, the handle being mounted on the mounting portion,
wherein the handle comprises a connecting portion connected to the mounting portion,
wherein the mounting portion extends in a radial direction of a rotational axis of the secondary latch, and
wherein the connecting portion is connected to the mounting portion along the radial direction of the rotational axis of the secondary latch, and
wherein a projecting portion is provided on the connecting portion in such a manner as to project towards the base plate and brought into contact with the base plate to alleviate torsion on the connecting portion to suppress damage on the connecting portion.

### Claim 2 (depends on 1)

The hood lock device according to claim 1,
wherein the connecting portion comprises:
a slot, the mounting portion being inserted into the slot; and
an elastic piece having the projecting portion projecting inwards of the slot,
wherein the mounting portion comprises a recessed portion, the projecting portion fitting in the recessed portion.

### Claim 3

A hood lock device comprising:
a base plate fixed to a vehicle body and having a striker groove into which a striker provided on a hood that is opened from and closed towards the vehicle body enters in response to a closing action of the hood;
a primary latch configured to fasten the hood in a totally closed state by locking the striker in a totally closing position in the striker groove; and
a secondary latch configured to fasten the hood in a half opened state by locking the striker in a half opening position situated closer to an opening side of the striker groove than the totally closing position,
wherein the secondary latch comprises:
a latch main body, which is made of steel, and which is rotatable relative to the base plate between a secondary latching position and a secondary unlatching position, the latch main body being configured to cause an engagement portion, which is configured to lock the striker, to enter the striker groove or to recede from the striker groove in accordance with a rotation of the latch main body, the engagement portion entering the striker groove in a case that the latch main body is placed in the secondary latching position, the engagement portion receding from the striker groove in a case that the latch main body is placed in the unlatching position; and
a handle, which is made of resin, and which is configured to receive an operation for causing the latch main body to rotate in an unlatching direction in which the engagement portion recedes from the striker groove, and
wherein the latch main body comprises:
a forcing meshing portion configured to come into engagement with the striker passing across the half opening position and moving to the totally closing position and to be pressed in a latching direction, which is opposite to the unlatching direction, by the striker in a case that the latch main body is placed at the secondary unlatching position and the engagement portion recedes from the striker groove; and
a mounting portion provided adjacent to the forcing meshing portion, the handle being mounted on the mounting portion,
wherein the handle comprises:
a connecting portion connected to the mounting portion along the base plate;
a handle portion extending from the connecting portion in a direction in which the handle portion intersects the base plate; and
an operation input portion provided at a distal end portion of the handle portion, and
wherein a projecting portion is provided on the connecting portion in such a manner as to project towards the base plate and brought into contact with the base plate to alleviate torsion on the connecting portion to suppress damage on the connecting portion.

### Claim 4 (depends on 3)

The hood lock device according to claim 3,
wherein the handle comprises a first extending portion extending from the connecting portion at an opposite side to the handle portion, and
wherein the first extending portion extends along a side of the mounting portion which faces the base plate in a direction in which the connecting portion and the mounting portion are connected together.

### Claim 5 (depends on 3)

The hood lock device according to claim 3,
wherein the handle portion comprises a second extending portion extending from the connecting portion at an opposite side to the handle portion, and
wherein the second extending portion extends along a side of the mounting portion which is opposite to a side thereof which faces the base plate in a direction in which the connecting portion and the mounting portion are connected together.