ELASTIC FASTENER FOR SHAVER

• US 20190291289A1
• Filed: 09/19/2016
• Published: 09/26/2019
• Est. Priority Date: 09/19/2016
• Status: Active Grant

• Current Assignee: Xiangrong Ren
• Original Assignee: Xiangrong Ren
• Inventors: Ren, Xiangrong
• Granted Patent: US 10,639,808 B2
• Time in Patent Office: Days
• CPC Class Codes: B26B 21/08 involving changeable blades
• CPC Class Codes: B26B 21/225 the changeable unit being resiliently mounted on the handle
• CPC Class Codes: B26B 21/40 Details or accessories
• CPC Class Codes: B26B 21/521 Connection details, e.g. connection to razor heads

Abstract

An elastic fastener for a shaver includes a left elastic arm, a right elastic arm, and a connecting arm. A left pivoting part is provided at a lower end of the left elastic arm, a left hook is provided; a right pivoting part is provided at a lower end of the right elastic arm, a right hook is provided. A left plane and a right plane are defined, the central pivoting line of the left pivoting part is located in the left plane, the central pivoting line of the right pivoting part is located in the right plane, and abutment areas of the left hook and the right hook abutted against the razor head during shaving are located in a space sandwiched between the two planes, so as to prevent a razor head from disengaging from a handle during shaving and ensure the reliability of shaving.

Claims

1. An elastic fastener for a razor, adapted for connecting a razor head to a handle, and the elastic fastener comprising:

a left elastic arm and a right elastic arm, which are arranged in a Y-axis direction and spaced in an X-axis direction; and

a connecting arm for connecting the left elastic arm and the right elastic arm together to form one piece;

wherein a left pivoting part is provided at a lower end of the left elastic arm to connect with the handle, and a central pivoting line of the left pivoting part is arranged in a Z-axis direction, a left hook is extended at an upper end of the left elastic arm in the X-axis direction to engage with the razor head;

a right pivoting part is provided at a lower end of the right elastic arm to pivotally connect with the handle, and a central pivoting line of the right pivoting part is arranged in the Z-axis direction, a right hook is extended at an upper end of the right elastic arm in the X-axis direction to engage with the razor head, a left plane and a right plane vertical to an X axis are defined, the central pivoting line of the left pivoting part is located in the left plane, the central pivoting line of the right pivoting part is located in the right plane, and abutment areas of the left hook and the right hook abutted against the razor head during shaving are located in a space sandwiched between the left plane and the right plane.

2. The elastic fastener for a razor according to claim 1, wherein the left hook and the right hook are tilted downwards relative to the X-axis direction.

3. The elastic fastener for a razor according to claim 2, wherein a tilted angle of the left hook and the right hook is in a range of 1-5°

.

4. The elastic fastener for a razor according to claim 1, wherein the left elastic arm has a left part which intersects with the left hook and located in the space sandwiched between the left plane and the right plane, a plane where the left part is located and the left plane are intersected, with an intersected line is the central pivoting line of the left pivoting part, and an angle α

is formed between the plane where the left part is located and the left plane, therein 0<

α

4°

.

5. The elastic fastener for a razor according to claim 4, wherein the angle α

has a range of 0<

α

0.5°

.

6. The elastic fastener for a razor according to claim 1, wherein the right elastic arm has a right part which intersects with the right hook and located in the space sandwiched between the left plane and the right plane, a plane where the right part is located and the right plane are intersected, with an intersected line is the central pivoting line of the right pivoting part, and an angle α

is formed between the plane where the right part is located and the right plane, therein 0<

α

4°

.

7. The elastic fastener for a razor according to claim 6, wherein the angle α

has a range of 0<

α

3.5°

8. The elastic fastener for a razor according to claim 1, wherein the connecting arm is a V-shaped structure, a lower end of the left elastic arm, the connecting arm, and a lower end of the right elastic arm together form an M-shaped structure.

9. The elastic fastener for a razor according to claim 1, wherein the left elastic arm and the right elastic arm are symmetrical.

10. The elastic fastener for a razor according to claim 1, wherein at least one of the left hook and the right hook is a circular ring piece.