CA1069730A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Transmission mechanism
Assignee: Individual
•
Filing: 1977-11-29
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Granted: 1980-01-15
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Expires: 1997-11-29
Abstract
Abstract A B S T R A C T The invention relates to a transmission mechanism for im-parting rotational movements to a driven member by means of a reciprocating drive member. The mechanism comprises means pivo-tally connected to the drive member for alternately actuating two dogs of an operating unit associated with the driven member so as to move the operating unit to one or the other of two end positions, thereby providing said rotational movement of the driven member. The means for actuating the operating unit is an arm capable of pivoting to and fro across a central plane through the travel path of the drive member, said arm being arranged to effect the alternate actuation of both the dogs by one and the same free end thereof, power means for moving the operative unit to the respective end positions being pivotally mounted in relation to a stationary pivot and having a point of action being opposed to said pivot. This point of action of the power means follows the operating unit when moving this between said end positions.
Inventors
- 👤 Carl G.H. Af Segerstad
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-04 05:44
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/16; F16K31/165; F16K31/1655; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18896
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
178 words
A transmission mechanism for imparting rotational movements to a driven member by means of a reciprocating drive member, com-prising means pivotally connected to said drive member for alter-nately actuating two dogs of an operating unit associated with said driven member - said dogs being located on either side of a central plane extending through the travel path of the drive member - so as to move said operating unit to one or the other of two end positions, thereby providing said rotational movement of the driven member, the improvement that said means for actua-ting said operating unit is an arm capable of pivoting to and fro across said central plane and arranged to effect said alter-nate actuation of both the dogs by one and the same free end there-of, and that power means for moving said operating unit to the respective end positions is pivotally mounted in relation to a stationary pivot and has a point of action being opposed to said pivot, said point of action following said operating unit when moving this between said end positions.
Claim 2
Dependent Claim
178 words
A transmission mechanism for imparting rotational movements to a driven member by means of a reciprocating drive member, com-prising means pivotally connected to said drive member for alter-nately actuating two dogs of an operating unit associated with said driven member - said dogs being located on either side of a central plane extending through the travel path of the drive member - so as to move said operating unit to one or the other of two end positions, thereby providing said rotational movement of the driven member, the improvement that said means for actua-ting said operating unit is an arm capable of pivoting to and fro across said central plane and arranged to effect said alter-nate actuation of both the dogs by one and the same free end there-of, and that power means for moving said operating unit to the respective end positions is pivotally mounted in relation to a stationary pivot and has a point of action being opposed to said pivot, said point of action following said operating unit when moving this between said end positions.
Claim 3
Dependent Claim
148 words
A mechanism according to claim 1, wherein said pivotable arm has two recesses, one on either side of a centre line through the arm, said recesses being arranged to alternately co-operate with a finger pivotably mounted on a stationary part, said finger, by spring action, always tending to assume a rest position in which it is substantially located in said central plane, said arm being in an unaffected condition retained in a certain unvaried posi-tion in relation to said drive member, said arm - when returning said drive member after accomplishing a reversal of said operating unit - being reversed from a first inclined position to a second inclined position in relation to said central plane by said finger being engaged in one of said recesses and during continued re-turning of said drive member forcing said arm to move from one of said inclined positions to the other.
Claim 4
Dependent Claim
105 words
A mechanism according to claim 1, wherein said pivotable arm is by spring action arranged to assume a rest position in which it is located in said central plane after accomplishing a reversal of said operating unit, a cam surface extending between said two dogs having two portions, one of which extends continously at an inclined angle from one of said dogs and past said central plane when said operating unit is in an end position, said arm being arranged to abut aginst said cam surface portion when starting a reversing movement and thereby be guided by said surface portion into engagement with said dog.
Claim 5
Dependent Claim
15 words
A mechanism according to claim 3, wherein said cam surface has a substantially U-shaped profile.
Claim 6
Dependent Claim
59 words
A mechanism according to claim 1, wherein said operating unit comprises two spaced-apart interconnected plates having cir-cumferential portions in which said dogs are formed, and wherein said arm comprises a stem which is connected to said drive mem-ber and contained between said plates as well as two projections projecting in opposite directions from said stem for engaging said dogs.
Claim 7
Dependent Claim
43 words
A mechanism according to claim 1, wherein said power means comprises a compression spring, the point of action of which lies in a plane located substantially half-way between said dogs and wherein said pivot for said spring is located in said central plane.
References Cited (Backward Citations)
No citation records indexed.
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