Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
170 words
A buckle device for a safety belt, comprising a casing having an entrance slot for receiving a tongue member, a latch member supported for pivotal movement in the casing at a position past which said tongue member moves as it enters the casing through said entrance slot, said latch member being engageable with said tongue member to hold the tongue member in the casing, first biasing means for biasing said latch member into engagement with said tongue member, a manually operable member supported for movement inwardly of said casing, second biasing means for biasing said manually operable member outwardly of said casing, said manually operable member and said latch member having cooperable elements integral therewith, respectively, one of said elements having a cam surface and the other of said elements having a surface that moves along said cam surface when said manually operable member is moved inwardly of said casing to transform that movement to pivotal movement of said latch member that disengages said latch member from said tongue member.
Claim 2
Dependent Claim
170 words
A buckle device for a safety belt, comprising a casing having an entrance slot for receiving a tongue member, a latch member supported for pivotal movement in the casing at a position past which said tongue member moves as it enters the casing through said entrance slot, said latch member being engageable with said tongue member to hold the tongue member in the casing, first biasing means for biasing said latch member into engagement with said tongue member, a manually operable member supported for movement inwardly of said casing, second biasing means for biasing said manually operable member outwardly of said casing, said manually operable member and said latch member having cooperable elements integral therewith, respectively, one of said elements having a cam surface and the other of said elements having a surface that moves along said cam surface when said manually operable member is moved inwardly of said casing to transform that movement to pivotal movement of said latch member that disengages said latch member from said tongue member.
Claim 3
Dependent Claim
50 words
A buckle device in accordance with claim 1, wherein said latch member is a lever having a pivotal axis at a forward portion thereof adjacent to said entrance slot, having an intermediate portion that engages said tongue member, and having one of said cooperable elements at a rear portion thereof.
Claim 4
Dependent Claim
49 words
A buckle device in accordance with claim 2, wherein said cam surface is integral with said manually operable member and moves the cooperable element integral with said latch member to disengage the latch member from the tongue member when the manually operable member is moved inwardly of said casing.
Claim 5
Dependent Claim
37 words
A buckle device in accordance with claim 3, wherein said cam surface is a sloping surface that lifts the cooperable element integral with the latch member when the manually operable member is moved inwardly of said casing.
Claim 6
Dependent Claim
51 words
A buckle device in accordance with claim 2, wherein said cam surface is integral with said latch member and is moved by the cooperable element integral with said manually operable member to disengage the latch member from the tongue member when the manually operable member is moved inwardly of said casing.
Claim 7
Dependent Claim
40 words
A buckle device in accordance with claim 5, wherein the cam surface is a curved surface that is lifted by the cooperable element integral with the manually operable member when the manually operable member is moved inwardly of said casing.
Claim 8
Dependent Claim
37 words
A buckle device in accordance with claim 1, wherein said first biasing means comprises a plate spring, one end of which is fixed in said casing and the other end of which presses upon said latch member.