US 5,253,554 A · Power driven hose clamp tool

Abstract

A power driven hose clamp tool composed generally of a handle component and an actuator component. The handle component includes an operator handle and a head connected with one end of the handle. The actuator component includes a main body which removably connects with the head and contains a power drive unit which reciprocably moves a T-bar in response to selective pressing of push button controls. Pivotally connected with the T-bar are a pair links which are in turn pivotally connected, respectively, with the near end of a pair of arms. The pair of arms are connected pivotally to the main body. The distal end of the pair of arms is provided with claws for gripping the wings of a spring tension clamp. The pair of links operate in combination with the pair of arms so as to provide a high mechanical advantage due to the scissor-like operation thereof. The preferred power drive unit is a pneumatically operated spring biased piston-cylinder unit contained in the main body and fluidically connected to an external pneumatic system at the handle. A push button operated inlet valve actuates closure of the claws only when depressed, and a push button operated outlet valve vents air pressure only when depressed, thereby resulting in the spring causing the piston to move so as to open the claws. An adjustment screw permits selective adjustment of the distance between claws when fully open and a needle valve permits adjustment of the rate of closing of the claws when the inlet valve is depressed.

Claims18

Dependent claims

A power driven hose clamp tool for gripping wings of a spring tension hose clamp of a predetermined diameter when in a relaxed state so as to selectively increase the diameter thereof by mutually squeezing the wings toward each other, said power driven hose clamp tool comprising:

handle means for providing a hand grip;
a main body connected with said handle means;
a first arm having a near end and an opposite distal end, said first arm being pivotally connected with said main body at a predetermined location between said near and distal ends thereof;
first claw means connected with said first arm at said distal end thereof;
a second arm having a near end and an opposite distal end, said second arm being pivotally connected with said main body at a predetermined location between said near and distal ends thereof;
second claw means connected with said second arm at said distal end thereof;
a T-bar having a first end and a second end;
scissor-like linkage means pivotally connected with said first and second ends of said T-bar and connected with said near end of each of said first and second arms for providing pivotal movement of said first and second arms in response to reciprocal movement of said T-bar;
drive means connected with said main body and connected to said T-bar at a location medially with respect to said first and second ends thereof for causing reciprocal movement of said T-bar with respect to said main body;
and
control means connected with at least one of said main body and said handle means for providing selective actuation of said drive means.

8 more elements

handle means for providing a hand grip;
a main body connected with said handle means;
a first arm having a near end and an opposite distal end, said first arm being pivotally connected with said main body at a predetermined location between said near and distal ends thereof;
first claw means connected with said first arm at said distal end thereof;
a second arm having a near end and an opposite distal end, said second arm being pivotally connected with said main body at a predetermined location between said near and distal ends thereof;
second claw means connected with said second arm at said distal end thereof;
a T-bar having a first end and a second end;
scissor-like linkage means pivotally connected with said first and second ends of said T-bar and connected with said near end of each of said first and second arms for providing pivotal movement of said first and second arms in response to reciprocal movement of said T-bar, said scissor-like linkage means comprising:
a first link having a first end and a second end, said first end of said first link being pivotally connected with said first end of said T-bar, said second end of said first link being pivotally connected with said near end of said first arm;
and
a second link having a first end and a second end, said first end of said second link being pivotally connected with said second end of said T-bar, said second end of said second link being pivotally connected with said near end of said second arm;
wherein said first link is oriented with respect to said second link such that said first and second links mutually form a cross-X pattern;
drive means connected with said main body and connected to said T-bar medially between said first and second ends thereof for causing reciprocal movement of said T-bar with respect to said main body;
and
control means connected with at least one of said main body and said handle means for providing selective actuation of said drive means, wherein said control means comprises:
first control means connected with said drive means for selectively controlling reciprocable movement of said T-bar in a direction away from said handle means;
and
second control means connected with said drive means for selectively controlling reciprocable movement of said T-bar in a direction toward said handle means.

15 more elements

Dependencies are inferred from the claim text.

Power driven hose clamp tool

Life of this patent

Power driven hose clamp tool

Life of this patent

Abstract

Claims18