Gas pressure actuator

1. A gas pressure actuator comprising:

a cylindrical housing;

a piston rod, the piston rod being accommodated inside the housing prior to driving the gas pressure actuator;

a gas generator arranged at one end side in an axial direction of the housing, wherein, during driving the gas pressure actuator, the gas generator causes the piston rod to extend from the housing by generating high pressure gas;

a holding assembly that secures the gas generator to the one end side in the axial direction of the housing; and

an electric connector for electrically coupling the gas generator to an external device,

wherein the holding assembly is provided with a first coupler hole for coupling the gas pressure actuator to a first hinge at a first position on an axis line of the gas pressure actuator, and

wherein the holding assembly is provided with an insertion hole for inserting the electric connector inside the holding assembly, so that the electric connector is coupled to the gas generator.

2. The gas pressure actuator according to claim 1 , wherein an opening of the insertion hole and an opening of the first coupler hole are formed on a same surface of the holding assembly.

3. The gas pressure actuator according to claim 1 , wherein the insertion hole is formed such that the insertion hole gradually becomes smaller, as a position becomes deeper from the opening for inserting the electric connector.

4. The gas pressure actuator according to claim 1 , wherein the insertion hole has a size that is necessary and sufficient for inserting the electric connector from one surface side of the holding assembly.

5. The gas pressure actuator according to claim 1 , further comprising:

a head assembly that secures an initial position of the piston rod, prior to driving the gas pressure actuator,

wherein the head assembly is provided with a second coupling hole for coupling the gas pressure actuator to a second hinge at a second position on the axis line.