Connector for plate-shaped object

1. A connector comprising:

an insulator having an accommodation space into which an object to be connected to said connector is removably insertable, said object being shaped into a thin plate and having a pair of engaging recesses at opposite side edges of said object;

at least one contact fixed to said insulator, said object being connected to said contact upon being inserted into said accommodation space; and

a pair of resilient engaging protrusions, each having an engaging portion, which are resiliently deformable in opposite directions away from each other in a plane in which said object lies, said engaging portions of said pair of resilient engaging protrusions being respectively engaged in said pair of engaging recesses of said object that is inserted into said accommodation space,

wherein a distance between said engaging portions of said pair of resilient engaging protrusions in a free state is smaller than a width of an insertion end of said object which is to be inserted into said accommodation space; and

wherein a pair of bottom holes are formed in said insulator to receive the lower parts of said pair of resilient engaging protrusions, respectively.

2. The connector according to claim 1 , wherein said insulator comprises a pair of guide portions, positioned closer to an insertion opening of said accommodation space than said pair of resilient engaging protrusions, for guiding said object to a position between said pair of resilient engaging protrusions.

3. The connector according to claim 1 , wherein said pair of resilient engaging protrusions and said insulator are molded integrally out of a same material.

4. The connector according to claim 1 , wherein said engaging portions of said pair of resilient engaging protrusions are greater in thickness than said pair of engaging recesses.

5. The connector according to claim 2 , further comprising at least one insertion limit portion which limits a rearward movement of said object within said accommodation space,

wherein base ends of said pair of resilient engaging protrusions are positioned on the opposite side of said insertion limit portion to that at which said insertion opening is positioned.

6. The connector according to claim 1 , further comprising an actuator which presses one of said object inserted into said accommodation space and said contact toward the other.

7. The connector according to claim 1 , wherein said pair of resilient engaging protrusions are positioned on opposite sides of said accommodation space in a direction orthogonal to an insertion direction of said object into said accommodation space.

8. The connector according to claim 5 , wherein a plurality of said contacts and a plurality of said insertion limit portions are alternately arranged in a direction orthogonal to an insertion direction of said object into said accommodation space.

9. The connector according to claim 5 , wherein said insertion limit portion is integral with said insulator.

10. The connector according to claim 1 , wherein each of said pair of bottom holes is a through-hole.

11. The connector according to claim 1 , wherein said contact comprises:

a first arm and a second arm which face each other with a predetermined distance therebetween; and

a resilient connecting portion which connects said first arm and said second arm to each other,

wherein said connector further comprises an actuator which moves one end of said second arm toward said insertion end of said object in said accommodation space by pressing the other end of said second arm in a direction away from an adjacent one end of said first arm with said object being inserted in between the other end of said first arm and said one end of said second arm.

12. The connector according to claim 6 , wherein said actuator comprises a pair of pivots which project in opposite directions from laterally opposite ends of said actuator, respectively, wherein said actuator is rotatable about said pair of pivots relative to said insulator.

13. The connector according to claim 2 , wherein said pair of said guide portions are formed at opposite ends of said insertion opening in a direction orthogonal to an insertion direction of said object into said accommodation space, each of said pair of guide portions including an inclined surface which is inclined to a plane orthogonal to said plane in which said object lies.

14. A connector provided with an insulator and a plurality of contacts, each of which having two prongs for holding therebetween an object which is to be connected to said contact,

wherein said insulator comprises a pair of resilient engaging protrusions, each having one engaging portion which is resiliently deformable in an opposite direction away from the other in a plane in which said object lies,

wherein said object is formed as a thin plate and has a pair of engaging recesses at opposite side edges thereof,

wherein said engaging portions of said pair of resilient engaging protrusions are respectively engaged in said pair of engaging recesses of said object upon said object being inserted into an accommodation space of said insulator,

wherein a distance between said engaging portions of said pair of resilient engaging protrusions in a free state is smaller than a width of an insertion end of said object which is to be inserted into said accommodation space; and

wherein a pair of bottom holes are formed in said insulator to receive the lower parts of said pair of resilient engaging protrusions, respectively.