Actuator which has an operating pin
First Claim
1. An actuator which has an operating pin, which has the following structure:
- the actuator is constituted to include a piston which has an operating pin, a squib which is ignited then generates a driving gas when the actuator is operated, and a cylinder case for holding the piston;
wherein the piston is constituted to be connected to the squib and project its operating pin from its front end;
wherein the cylinder case includes a side wall portion substantially in a cylindrical shape surrounding the piston, and a ceiling wall portion constituted so as to close the front end side of the side wall portion but also so as to allow the operating pin to project outward;
wherein the piston is configured so that it is moved rearward along with its operating pin the driving gas generated from the squib and injected into the cylinder case when the actuator is operated;
wherein the piston comprises a cap portion capable of covering the side of the squib where the squib has a gas injection port;
wherein the cap portion comprises a cylindrical side portion capable of covering the sides of the squib in all directions orthogonal to the axis of the squib, and a front end wall portion formed to close the front end side of the cylindrical side portion;
wherein the operating pin which is configured to have a diameter smaller than the outer diameter of the front end wall portion is made to project from the center of the front end wall portion of the cylindrical case;
wherein a plurality of injection holes capable of injecting the driving gas from the gas injection port to the space between the front end wall portion and the ceiling wall portion inside of the cylinder case are provided in the cap portion around the operating pin; and
wherein the forward movement of the piston before the actuator is operated is restricted by the front end wall portion of the piston coming into contact with the ceiling wall portion of the cylinder case.
1 Assignment
0 Petitions
Accused Products
Abstract
An actuator which has an operating pin of the invention includes a piston which has an operating pin, a squib, and a cylinder case for holding the piston, in which the piston is moved rearward along with the operating pin by a driving gas generated injected from the squib into the cylinder case. A cap portion for covering the side of the squib with a gas injection port comprises a cylindrical side portion and a front end wall portion, and the operating pin is projected from the center of this front end wall portion. The cap portion is arranged with injection holes through which the driving gas is injected. Forward movement of the piston before the actuator is operated is restricted by the front end wall portion of the cylinder case coming into contact with the ceiling wall portion of the cylinder case.
-
Citations
9 Claims
-
1. An actuator which has an operating pin, which has the following structure:
-
the actuator is constituted to include a piston which has an operating pin, a squib which is ignited then generates a driving gas when the actuator is operated, and a cylinder case for holding the piston; wherein the piston is constituted to be connected to the squib and project its operating pin from its front end; wherein the cylinder case includes a side wall portion substantially in a cylindrical shape surrounding the piston, and a ceiling wall portion constituted so as to close the front end side of the side wall portion but also so as to allow the operating pin to project outward; wherein the piston is configured so that it is moved rearward along with its operating pin the driving gas generated from the squib and injected into the cylinder case when the actuator is operated; wherein the piston comprises a cap portion capable of covering the side of the squib where the squib has a gas injection port; wherein the cap portion comprises a cylindrical side portion capable of covering the sides of the squib in all directions orthogonal to the axis of the squib, and a front end wall portion formed to close the front end side of the cylindrical side portion; wherein the operating pin which is configured to have a diameter smaller than the outer diameter of the front end wall portion is made to project from the center of the front end wall portion of the cylindrical case; wherein a plurality of injection holes capable of injecting the driving gas from the gas injection port to the space between the front end wall portion and the ceiling wall portion inside of the cylinder case are provided in the cap portion around the operating pin; and wherein the forward movement of the piston before the actuator is operated is restricted by the front end wall portion of the piston coming into contact with the ceiling wall portion of the cylinder case. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification