Vehicle door latch device

• US 10,641,017 B2
• Filed: 11/29/2017
• Issued: 05/05/2020
• Est. Priority Date: 01/30/2017
• Status: Expired due to Fees

• Current Assignee: GECOM Corporation (Mitsui Mining and Smelting Company Limited), Mitsui Kinzoku Act Corporation (Mitsui Mining and Smelting Company Limited)
• Original Assignee: GECOM Corporation (Mitsui Mining and Smelting Company Limited)
• Inventors: Ishiguro, Katsuyuki, Sugo, Shigekazu
• Primary Examiner(s): Barrett, Suzanne L
• Application Number:
  US15/825,385
• Publication Number:
  US 20180216370A1
• Time in Patent Office: 888 Days
• Field of Search: 70237, 29234114, 292DIG 27, 292DIG 37
• CPC Class Codes: E05B 77/04 Preventing unwanted lock actuation, e.g. unlatching, at the moment of collision
• CPC Class Codes: E05B 77/06 by means of inertial forces
• CPC Class Codes: E05B 77/34 Protection against weather or dirt, e.g. against water ingress closures or guards for keyholes E05B17/14
• CPC Class Codes: E05B 85/02 Lock casings
• CPC Class Codes: E05B 85/04 Strikers
• CPC Class Codes: E05B 85/20 Bolts or detents

Abstract

A vehicle door latch device comprises an engagement mechanism housing having a striker entering groove into which a striker can enter, a cover member occluding an opening of the engagement mechanism housing, a latch pivotally mounted in the engagement mechanism housing and capable of engaging with the striker which has entered the striker entering groove, a ratchet pivotally mounted in the engagement mechanism housing and capable of engaging with the latch, and movable elements relating to the operation of the ratchet. The housing has a guide path through which the invasion fluid can be guided to an outside direction of a region that the movable elements are disposed.

Claims

1. A vehicle door latch device comprising:

a housing having a striker entering groove into which a striker enters;

a cover member occluding an opening of the housing;

a latch pivotally mounted in the housing so as to engage with the striker which has entered the striker entering groove;

a ratchet pivotally mounted in the housing so as to engage with the latch, and

movable elements relating to operation of the ratchet,

wherein the housing has a first guide path for guiding an invasion fluid to an outside direction of a region that the movable elements are disposed, and another guide path on a lower side of the first guide path, and at least one eaves portion is provided between the first guide path and the another guide path,

wherein at an intermediate position in a longitudinal direction of the cover member, the first guide path and the another guide path are joined in a discharge path corresponding to each downstream portion, and a cut-out shaped drainage portion is formed for opening the discharge path and discharging the invasion fluids in the outside direction,

wherein the first guide path and the another guide path are located lower than the striker entering the groove and higher than the region,

wherein the outside direction is a relative direction that is inclined to an entering direction of the striker.

2. The vehicle door latch device according to claim 1, wherein the movable elements are a crash releasing prevention mechanism and are disposed lower than the ratchet in the housing, and

the other guide path is constituted by another eaves portion that covers an upper side of the crash releasing prevention mechanism.

3. The vehicle door latch device according to claim 1, wherein the movable elements are a locking/unlocking mechanism disposed on a back side of the housing, and the locking/unlocking mechanism occludes a hole provided in the housing.