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US 4,493,133 AGranted
Locking means, particularly for truck platform flaps, and the like
AssigneeHuskvarna Transtortkonstruktionar A.B.
InventorWeimar Nilsson
Life of this patent
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AssigneeHuskvarna Transtortkonstruktionar A.B.
InventorWeimar Nilsson
Estimating the term…
Locking means for truck platform flaps (6) comprises a base plate (1), a handle (2) pivotably journalled in the base plate, a substantially U-shaped locking yoke (3) which is connected to the handle and pivotable in relation thereto on an axis substantially parallel to the pivot axis of the handle and which in its locking position is adapted to engage a hook (11) for holding the flap, and at least one spring (24) which actuates the handle and the locking yoke and whose one end is secured to the base plate (1). To make one and the same spring fulfill three essential functions, viz. ensuring resilient appliance of the locking yoke (3), rotation of the handle in the direction towards the base plate (1) at locked as well as unlocked (when the handle has an opening angle which is not substantially more than about 50.degree.) flap locking means, and maintenance of the handle in locking position as well as in its fully open position, the other end of the spring (24) is secured in the handle (2 ) or in an appurtenant member (22) rigidly connected thereto at a point (25) which is so located, that the spring on one hand strives to rotate the handle in the direction towards its locking position when the handle is turned out from the base plate and is positioned on one side of a dead center position, and on the other hand strives to rotate the handle in the direction towards its open position when the handle is turned out from the base plate and is positioned on the other side of said dead center position. (FIG. 7)
Locking means, particularly for a truck platform flap of the type which comprises a base plate, an one-armed lever pivotably journaled in said base plate and having the shape of a handle, a substantially U-shaped locking yoke which is connected to the handle and pivotable in relation thereto on an axis substantially parallel to the pivot axis of the handle between locking and unlocking positions, said locking yoke being adapted to engage a hook or a recess when in said locking position for holding the flap, and at least one spring for actuating the handle and the locking yoke, said spring having one end operatively secured to the base plate and the other end operatively secured to said handle to a point which is located so that the spring on one hand urges said handle to rotate in the direction towards its locking position when the handle is turned out from the base plate and is positioned on one side of a dead center position, and on the other hand urges said handle to rotate in the direction towards its open position when the handle is turned out from the base plate and is positioned on the other side of said dead center position.
Locking means according to any the preceding claims, characterized by the provision of an ear member projecting from said base plate and having a longish aperture in which said one end of the spring is secured, and a lateral side member belonging to the handle and having at least one aperture which registers with said longish aperture in said ear member in the locking position of the handle, a pad-lock being insertable through said registering apertures for maintaining the handle in its locking position.
Locking means, particularly for a truck platform flap of the type which comprises a base plate, an one-armed lever pivotably journaled in said base plate and having the shape of a handle, substantially U-shaped locking yoke which is connected to the handle and pivotable in relation thereto on an axis substantially parallel to the pivot axis of the handle and which in its locking position is adapted to engage a hook or a recess for holding the flap, and at least one spring which actuates the handle and the locking yoke and has one end which is operatively secured to the base plate, wherein said base plate has at least one end which in the locking position is located just opposite and supportingly engages an area of the substantially U-shaped locking yoke which forms a transit between one of the U-shanks of the yoke and its central web portion located between the shanks.
Dependencies are inferred from the claim text.