Buckle device
AssigneeAshimori Industry Co., Ltd.
InventorsAkira Sato, Naohiro Yamada
Life of this patent
Estimating the term…
Abstract
A buckle device capable of reducing an impact noise generated when a tongue plate (2) is inserted and eliminating a coil spring member energizing a release button (50) and a lock pin holder so as to simplify a structure, wherein a lock bar (30) has both end parts inserted into slots (16) and is mounted on a pair of side plate parts (12), both end parts of the lock bar (30) are engaged with a pair of guide grooves (54) in a pair of guide wall parts (52) of a synthetic resin release button (50) and, when the tongue plate (2) is inserted, the lock bar (30) is moved rapidly to the front end part of the slots (16) and, in this case, the end parts of the lock bar (30) are supported on a supporting part (55) at the end of the guide groove (54), not on the end of the slots (16).
Claims10
A buckle device (1) comprising a tongue plate (2) to be connected to the webbing, and a buckle body (5) into and from which the tongue plate (2) is inserted and extracted, wherein
- the buckle body (5) comprises:
- a frame (10);
- a hook member (20) pivotably mounted on the frame (10), the hook member being adapted to pivot to come into engagement with the tongue plate (2) upon insertion of the tongue plate (2) and being pivotally urged in the disengaging direction all the time;
- a release button (50) made of plastic and for releasing the engagement between the hook member (20) and the tongue plate (2);
- and a lock bar (30) adapted to move to a first position, in which the lock bar inhibits pivoting of the hook member (20) in the disengaging direction, by an urging force of a biasing member when the hook member (20) is engaged with the tongue plate (2), and move to a second position, in which the lock bar allows pivoting of the hook member (2) in the disengagement direction, by being pushed by the release button (50) upon disengaging operation of the release button (50):
- said buckle device is provided with a lock member (90) which is mounted on said frame (10) pivotably between a lock position, in which the lock bar (30) is locked in the first position, and a non-lock position in which the lock bar (30) is not locked, and a biasing member for elastically urging the lock member (90) to the non-lock position;
- in that the lock member (90) comprises:
- a base end part (91) pivotally mounted on the frame (10);
- a first engaging part formed in one end thereof;
- and a second engaging part (94) faced with the first engaging part (93) and adequately spaced therefrom to allow for receiving the lock bar (30);
- and
- in that a first position side end part of the lock bar (30) maintains the lock position abutting with the first engaging part (93), and the second engaging part (94) protruding into the movable area of the lock bar (30) closely faces the lock bar (30), when the lock member (90) is in the lock position.
A buckle device (1), comprising a tongue plate (2) to be connected to a webbing, and a buckle body (5) into and from which the tongue plate (2) is inserted and extracted, and equipped with a pretensioner for retracting the buckle body (5) in the tightening direction to tighten the webbing in an emergency of the vehicle, wherein
- said buckle body (5) comprises:
- a frame (10);
- a hook member (20) pivotably mounted on the frame (10), the hook member being adapted to pivot to come into engagement with the tongue plate (2) upon insertion of the tongue plate (2) and being pivotally urged in the disengaging direction all the time;
- a release button (50) made of plastic and for releasing the engagement member between the hook member (20) and the tongue plate (2);
- and a lock bar (30) adapted to move to a first position, in which the lock bar inhibits pivoting of the hook member (20) in the disengaging direction, by an urging force of a biasing member when the hook member is engaged with the tongue plate (2), and move to a second position, in which the lock bar allows pivoting of the hook member (20) in the disengagement direction, by being pushed by the release button (50) upon disengaging operation of the release button (50):
- said buckle device is provided with a lock member (90) mounted on said frame (10) pivotably between a lock position, in which the lock bar (30) resting in a first position is inhibited from moving to a second position, and a non-lock position in which the lock bar (30) is not inhibited from moving, and a biasing member to elastically urge the lock member (90) to the non-lock position, the lock member (90) having a first engaging part (93) with which a first position side end part of the lock bar (30) can abut, and a second engaging part (94) adapted to protrude into the movable area of the lock bar (30) to abut with a second position side end part of the lock bar (30) when it is in the lock position, and
- in that when the pretensioner is and is not in operation, the lock bar (30), which is urged to the first position, is adapted to abut against the first engaging part (93) thereby causing the lock member (90) to pivot to the lock position, and thus the second engaging part (94) is adapted to receive the lock bar (30), which has started to move to the second position side urged by an inertial force due to abrupt stop of the buckle body (5) after operation of the pretensioner, thereby inhibiting the lock bar (30) from moving to the second position.
Dependencies are inferred from the claim text.