Releasable locking mechanism for safety belts

A releasable locking mechanism for safety belts comprising:

• lock tongue means connected with the end of a first belt member;
• casing means connected with the end of a second belt member;
• means defining a generally planar slot for receiving said lock tongue means;
• stop surface means formed on said lock tongue means;
• support surface means defined on said casing means extending transversely relative to said planar slot;
• locking bolt means slidably guided on said support surface means and adapted to extend within said planar slot to engage said stop surface means to lock said tongue means relative to said casing means;
• and a spring-loaded release member adapted to urge said locking bolt means along said support surface means to release said lock tongue means from locking engagement therewith;
• said stop surface means and said support surface means being arranged to define an acute angle therebetween, wherein said support surface means are inclined relative to said stop surface means at an angle such that tension applied between said first and second belt members will produce through said lock tongue means a component of force on said locking bolt means lifting said locking bolt means away from said planar slot along said support surface means.

A releasable locking mechanism for safety belts comprising:

• lock tongue means connected with the end of a first belt member;
• casing means connected with the end of a second belt member;
• means defining a generally planar slot for receiving said lock tongue means;
• stop surface means formed on said lock tongue means;
• support surface means defined on said casing means extending transversely relative to said planar slot;
• locking bolt means slidably guided on said support surface means and adapted to extend within said planar slot to engage said stop surface means to lock said tongue means relative to said casing means;
• and a spring-loaded release member adapted to urge said locking bolt means along said support surface means to release said lock tongue means from locking engagement therewith;
• said stop surface means and said support surface means being arranged to define an acute angle therebetween, wherein said casing means is formed with a pair of lateral walls each having a recess therein defined by edges of said casing means, wherein said support surface means are defined by surfaces of said edges defining said recesses in said lateral walls of said casing means, and wherein said locking bolt means is formed from a blank of generally planar material and is arranged in loose engagement for swiveling motion about an upper edge thereof at said support surface means formed in said lateral walls of said casing means.

A releasable locking mechanism for safety belts comprising:

• lock tongue means connected with the end of a first belt member;
• casing means connected with the end of a second belt member;
• means defining a generally planar slot for receiving said lock tongue means;
• stop surface means formed on said lock tongue means;
• support surface means defined on said casing means extending transversely relative to said planar slot;
• locking bolt means slidably guided on said support surface means and adapted to extend within said planar slot to engage said stop surface means to lock said tongue means relative to said casing means;
• and a spring-loaded release member adapted to urge said locking bolt means along said support surface means to release said lock tongue means from locking engagement therewith;
• said stop surface means and said support surface means being arranged to define an acute angle therebetween, said mechanism further comprising a safety member arranged to be movably actuated by said release member, said safety member being slidably moved by said release member in a plane extending parallel to an insertion plane of said lock tongue means defined by said planar slot and intersecting the plane of movement of said locking bolt means.

A releasable locking mechanism for safety belts comprising:

• lock tongue means connected with the end of a first belt member;
• casing means connected with the end of a second belt member;
• means defining a generally planar slot for receiving said lock tongue means;
• stop surface means formed on said lock tongue means;
• support surface means defined on said casing means extending transversely relative to said planar slot;
• locking bolt means slidably guided on said support surface means and adapted to extend within said planar slot to engage said stop surface means to lock said tongue means relative to said casing means;
• and a spring-loaded release member adapted to urge said locking bolt means along said support surface means to release said lock tongue means from locking engagement therewith;
• said stop surface means and said support surface means being arranged to define an acute angle therebetween, wherein said release member is formed with a centrally arranged control member defining a curved control surface and wherein said locking bolt means is formed with a centrally arranged recess located to interact with said control surface, with actuation of said release member operating to urge said locking bolt means away from said planar slot by engagement of said control surface with said central recess.

A releasable locking mechanism for safety belts comprising:

• lock tongue means connected with the end of a first belt member;
• casing means connected with the end of a second belt member;
• means defining a generally planar slot for receiving said lock tongue means;
• stop surface means formed on said lock tongue means;
• support surface means defined on said casing means extending transversely relative to said planar slot;
• locking bolt means slidably guided on said support surface means and adapted to extend within said planar slot to engage said stop surface means to lock said tongue means relative to said casing means;
• and a spring-loaded release member adapted to urge said locking bolt means along said support surface means to release said lock tongue means from locking engagement therewith;
• said stop surface means and said support surface means being arranged to define an acute angle therebetween, said mechanism further comprising a return spring urging said release member away from the release position of said locking mechanism, said return spring being adapted to be stressed by swiveling movement of said locking bolt means during insertion of said lock tongue means into said planar slot, said spring becoming slack when said lock tongue means is completely inserted thereby to create an audible locking indication.

A releasable locking mechanism for safety belts comprising:

• lock tongue means connected with the end of a first belt member;
• casing means connected with the end of a second belt member;
• means defining a generally planar slot for receiving said lock tongue means;
• stop surface means formed on said lock tongue means;
• support surface means defined on said casing means extending transversely relative to said planar slot;
• locking bolt means slidably guided on said support surface means and adapted to extend within said planar slot to engage said stop surface means to lock said tongue means relative to said casing means;
• and a spring-loaded release member adapted to urge said locking bolt means along said support surface means to release said lock tongue means from locking engagement therewith;
• said stop surface means and said support surface means being arranged to define an acute angle therebetween, said mechanism further comprising a flat spring acting upon said locking bolt means in the direction of its release position, said flat spring being held at a distance relative to the plane of movement of said locking bolt means in said casing means, and engaging with a free end thereof at said locking bolt means, the spring tension of said flat spring being at least equal to the sum of the frictional forces counteracting movement of said locking bolt means toward the release position.

A releasable locking mechanism for safety belts comprising:

• lock tongue means connected with the end of a first belt member;
• casing means connected with the end of a second belt member;
• means defining a generally planar slot for receiving said lock tongue means;
• stop surface means formed on said lock tongue means;
• support surface means defined on said casing means extending transversely relative to said planar slot;
• locking bolt means slidably guided on said support surface means and adapted to extend within said planar slot to engage said stop surface means to lock said tongue means relative to said casing means;
• and a spring-loaded release member adapted to urge said locking bolt means along said support surface means to release said lock tongue means from locking engagement therewith;
• said stop surface means and said support surface means being arranged to define an acute angle therebetween, wherein said locking bolt means includes a bent portion extending into said planar slot and aligned at an acute angle relative to said stop surface means with an upper frontal surface thereof aligned parallel to the plane of movement of a web-shaped stop member, slidably guided in guide slots of lateral walls of said casing means parallel to the plane of movement of said lock tongue means, said stop member being slidable in one sliding direction by means of a key spring assigned to said release member and in the other sliding direction directly by means of said release member.

A releasable locking mechanism for safety belts comprising:

• lock tongue means connected with the end of a first belt member;
• casing means connected with the end of a second belt member;
• means defining a generally planar slot for receiving said lock tongue means;
• stop surface means formed on said lock tongue means;
• support surface means defined on said casing means extending transversely relative to said planar slot;
• locking bolt means slidably guided on said support surface means and adapted to extend within said planar slot to engage said stop surface means to lock said tongue means relative to said casing means;
• and a spring-loaded release member adapted to urge said locking bolt means along said support surface means to release said lock tongue means from locking engagement therewith;
• said stop surface means and said support surface means being arranged to define an acute angle therebetween, said mechanism further including a movable safety member adapted to block movement of said locking bolt means to a release position, said locking bolt means including an upper area enclosing with the underside of said safety member an angle of 90.degree..

a releasable locking mechanism for safety belts comprising:

• lock tongue means connected with the end of a first belt member;
• casing means connected with the end of a second belt member;
• means defining a generally planar slot for receiving said lock tongue means;
• stop surface means formed on said lock tongue means;
• support surface means defined on said casing means extending transversely relative to said planar slot;
• locking bolt means slidably guided on said support surface means and adapted to extend within said planar slot to engage said stop surface means to lock said tongue means relative to said casing means;
• and a spring-loaded release member adapted to urge said locking bolt means along said support surface means to release said lock tongue means from locking engagement therewith;
• said stop surface means and said support surface means being arranged to define an acute angle therebetween, said mechanism further comprising a safety member actuated by said release member to block and unblock the path of movement of said locking bolt means toward a release position, spring means including a spring extremity shoe, said safety member being acted upon by intervention of said spring extremity shoe by at least one pressure spring supported at said casing means against the actuation direction of said release member wherein said release member is engaged in a positive locking manner with said spring extremity shoe.