A terminal block is disclosed having a leaf spring, a contact, a cam member, and a spring member. The contact is positioned adjacent to the leaf spring and has a contact seat. The contact seat has a projection extending towards the leaf spring and is positionable in a hole of a ring terminal inserted into the terminal block. The cam member is in rotatable contact with the leaf spring, has a rotational axis extending in a direction of insertion of the ring terminal, and when in contact with the leaf spring, presses the leaf spring against the contact. The spring member is located closer to the leaf spring than the contact seat and biased against the inserted ring terminal.
1. A terminal block comprising:
a leaf spring;
a contact positioned adjacent to the leaf spring and having
a contact seat with a projection extending towards the leaf spring and positionable in a hole of a ring terminal inserted into the terminal block;
a cam member in rotatable contact with the leaf spring, having a rotational axis extending in a direction of insertion of the ring terminal, and when in contact with the leaf spring, pressing the leaf spring against the contact; and
a spring member located closer to the leaf spring than the contact seat, and biased against the inserted ring terminal.
2. The terminal block of claim 1 , wherein the contact seat has a contact hole facing the leaf spring.
3. The terminal block of claim 2 , wherein the contact hole is positioned in an approximate center of the projection.
4. The terminal block of claim 3 , wherein the spring member is bifurcated.
5. The terminal block of claim 4 , wherein the spring member extends along opposing sides of the projection.
6. The terminal block of claim 2 , wherein the leaf spring has an extending member positioned in the contact hole when the leaf spring is pressed against the contact by the cam member.
7. The terminal block of claim 1 , further comprising a bead positioned on the leaf spring and projecting towards the cam member.
8. The terminal block of claim 7 , wherein the cam member contacts the bead when in rotatable contact with the leaf spring.
9. The terminal block of claim 8 , wherein a frictional force between the cam member and the leaf spring increases when the cam member contacts the bead as the cam member rotates.