KEY STRUCTURE AND METHOD FOR MANUFACTURING THE SAME

• US 20190311863A1
• Filed: 04/04/2018
• Published: 10/10/2019
• Est. Priority Date: 04/04/2018
• Status: Abandoned Application

• Current Assignee: Cheng UEI Precision Industry Company Limited
• Original Assignee: Cheng UEI Precision Industry Company Limited
• Inventors: DONG, ZHI-BIN, ZHU, FENG, CHANG, KAI-HSIANG
• Application Number:
  US15/945,607
• Publication Number:
  US 20190311863A1
• Time in Patent Office: Days
• CPC Class Codes: B29C 2793/009 after shaping
• CPC Class Codes: B29C 70/763 the edges being disposed in a substantial flat plane
• CPC Class Codes: B29C 70/845 by moulding material on a relative small portion of the preformed parts
• CPC Class Codes: H01H 13/7065 characterised by the mechanism between keys and layered keyboards
• CPC Class Codes: H01H 2235/018 Spring seat
• CPC Class Codes: H01H 3/122 with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
• CPC Class Codes: H01H 3/125 using a scissor mechanism as stabiliser

Abstract

A key structure includes two key bodies and two elastic pieces. The two key bodies are disposed face to face. Each of the two key bodies has a base portion. Two opposite ends of the base portion extend sideward towards a same direction to form two extending portions spaced from each other. The two extending portions of one of the two key bodies face to the two extending portions of the other key body, respectively. Two opposite ends of each of the two elastic pieces are fastened in the two extending portions of the two key bodies respectively.

Claims

1. A key structure, comprising:

two key bodies disposed face to face, each of the two key bodies having a base portion, two opposite ends of the base portion extending sideward towards a same direction to form two extending portions spaced from each other, the two extending portions of one of the two key bodies facing to the two extending portions of the other key body, respectively; and

two elastic pieces, two opposite ends of each of the two elastic pieces being fastened in the two extending portions of the two key bodies, respectively.

2. The key structure as claimed in claim 1, wherein two sides of each of the two elastic pieces have two openings, the two openings of one of the two elastic pieces are corresponding to the two extending portions of the two key bodies which two opposite ends of the one of the two elastic pieces are fastened in, respectively.

3. The key structure as claimed in claim 2, wherein the extending portions of the two key bodies are integrated with the two elastic pieces tightly by virtue of the extending portions of the two key bodies being molded in the openings of the two elastic pieces.

4. The key structure as claimed in claim 1, wherein the two extending portions of the two key bodies facing to each other fasten two opposite ends of one of the two elastic pieces, and the other of the two extending portions of the two key bodies facing to each other fasten two opposite ends of the other elastic piece.

5. The key structure as claimed in claim 4, wherein two sides of each of the two elastic pieces have two openings corresponding to the two extending portions of the two key bodies facing to each other, respectively.

6. The key structure as claimed in claim 4, wherein each two extending portions of the two key bodies facing to each other are integrated by virtue of one of the two elastic pieces being integrally molded between each two extending portions of the two key bodies facing to each other, so that the two key bodies and the two elastic pieces form a frame shape.

7. The key structure as claimed in claim 1, wherein two opposite end surfaces of the base portion protrude oppositely to form two first fastening pillars, respectively.

8. The key structure as claimed in claim 1, wherein at least one portion of an inner surface of one of the two extending portions of each of the two key bodies protrudes towards the other extending portion of each of the two key bodies to form at least one second fastening pillar, at least one portion of an inner surface of the other extending portion of each of the two key bodies protrudes towards the one of the two extending portions of each of the two key bodies to form at least another one second fastening pillar.

9. The key structure as claimed in claim 1, wherein each of the two key bodies is substantially of a U shape, two facing sides of the two key bodies are recessed oppositely to form two mouths facing to each other.

10. The key structure as claimed in claim 1, wherein the two extending portions of the two key bodies are integrated with each other by virtue of one of the two elastic pieces being integrally molded between the two extending portions of the two key bodies, so that the two key bodies and the two elastic pieces form a frame shape.

11. A method for manufacturing a key structure, the key structure including two key bodies, comprising steps of:

carrying a plastic piece automatically into a mold, and the plastic piece opening a plurality of openings in advance;

molding the two key bodies to the plastic piece by adopting an integrated molding technology; and

pulling the two molded key bodies together with the plastic piece out from the mold, and the key structure being obtained after cutting the plastic piece together with the two key bodies.

12. The method for manufacturing the key structure as claimed in claim 11, wherein the plastic piece is made of a plastic material with a better softness.

13. The method for manufacturing the key structure as claimed in claim 11, wherein the plastic piece is continued being pulled into the mold to proceed manufacturing a next key structure after completing manufacturing a previous key structure.

14. The method for manufacturing the key structure as claimed in claim 11, wherein the key structure further includes two elastic pieces, the two key bodies are disposed face to face, each of the two key bodies has a base portion, two opposite ends of the base portion extend sideward towards a same direction to form two extending portions spaced from each other, the two extending portions of one of the two key bodies face to the two extending portions of the other key body, respectively, two opposite ends of each of the two elastic pieces are fastened in the two extending portions of the two key bodies, respectively.

15. The method for manufacturing the key structure as claimed in claim 14, wherein the two extending portions of the two key bodies facing to each other fasten two opposite ends of one of the two elastic pieces, and the other of the two extending portions of the two key bodies facing to each other fasten two opposite ends of the other elastic piece.

16. The method for manufacturing the key structure as claimed in claim 15, wherein two sides of each of the two elastic pieces have two openings, the two openings of one of the two elastic pieces are corresponding to the two extending portions of the two key bodies which two opposite ends of the one of the two elastic pieces are fastened in, respectively, the extending portions of the two key bodies are integrated with the two elastic pieces tightly by virtue of the extending portions of the two key bodies being molded in the openings of the two elastic pieces.

17. The method for manufacturing the key structure as claimed in claim 15, wherein each two extending portions of the two key bodies facing to each other are integrated by virtue of one of the two elastic pieces being integrally molded between each two extending portions of the two key bodies facing to each other, so that the two key bodies and the two elastic pieces form a frame shape.

18. The method for manufacturing the key structure as claimed in claim 14, wherein the two elastic pieces are made by cutting the plastic piece.

19. The method for manufacturing the key structure as claimed in claim 11, wherein each of the two key bodies is substantially of a U shape, two facing sides of the two key bodies are recessed oppositely to form two mouths facing to each other.