Multifunctional tool

Patent metadata

Field	Value
Publication number	US-9744679-B2
Application number	US-201414369871-A
Country	US
Kind code	B2
Filing date	May 26, 2014
Priority date	May 26, 2014
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

The present invention discloses a multifunctional tool, wherein one blade carrier can be folded and stored in one handle, so that the multifunctional tool can be used as scissors and can be used as a utility knife as well. The blade of a blade carrier can be removed, a blade cartridge is mounted on the multifunctional tool, and spare blades can be stored in the blade cartridge. The blade can be replaced by saw blade, so that it can be used as a saw when it is in the form of the utility knife.

First claim

The invention claimed is:

1. A multifunctional tool, comprising:
a pair of handles, including a first handle and a second handle, the first handle comprising a receiving slot;
a pair of blade carriers, including a first blade carrier and a second blade carrier, the first handle being fixedly connected to or integral with the first blade carrier;
a blade mounted in the first blade carrier or integral with the first blade carrier;
a pivot lock, by which the second blade carrier, the second handle and the first handle are pivotally connected;
the pivot lock being able to be switched between a locking state and an unlocking state, respectively, leading to the fixed connection and unfixed connection between the second blade carrier and the second handle; the second blade carrier being able to rotate around the pivot lock to enter and be placed into the receiving slot.

2. The multifunctional tool of claim 1 , wherein the pivot lock defines a pivot axis, and it can slide along the pivot axis; the pivot lock comprises first locking portions, and where the second handle and the second blade carrier are pivotally connected with the pivot lock is arranged with second locking portions which can form a teeth-type connection with the first locking portions; when the first locking portions form the teeth-type connection with the second locking portions, the pivot lock is in the locking state; when the pivot lock moving along the pivot axis causes the first locking portions and the second locking portions to be disconnected from the teeth-type connection, or the teeth-type connection cannot be formed because of the change of the relative position between the first locking portions and the second locking portions resulting from the first locking portions and the second locking portions rotating around the pivot axis after disconnection from the teeth-type connection, the pivot lock is in the unlocking state.

3. The multifunctional tool of claim 2 , wherein the first locking portions and the second locking portions are respectively either teeth or grooves that match the teeth, the teeth-type connection means that each tooth interlocks with each groove.

4. The multifunctional tool of claim 2 , wherein a first position of the second blade carrier relative to the second handle is defined, when the second blade carrier is in the first position, the pivot lock can be switched between the locking state and the unlocking state; when the second blade carrier is maintained in the first position, the first handle and the second handle can be close to each other around the pivot lock until the second blade carrier contacts the blade.

5. The multifunctional tool of claim 4 , wherein a second position of the second blade carrier relative to the second handle is defined, when the second blade carrier is in the second position, the pivot lock can be switched between the locking state and the unlocking state, and the second blade carrier can be accommodated in the receiving slot.

6. The multifunctional tool of claim 5 , wherein when the second blade carrier is maintained in the second position, the first handle is immovably maintained between the second handle and the second blade carrier.

7. The multifunctional tool of claim 6 , wherein shapes and sizes of the first locking portions are all the same or not all the same.

8. The multifunctional tool of claim 7 , wherein the first locking portions and the second locking portions are respectively either teeth or grooves that match the teeth, the teeth-type connection means that each tooth interlocks with each groove, and the shapes and sizes of the teeth are all the same or not all the same.

9. The multifunctional tool of claim 6 , wherein the second handle comprises a limit portion, when the second blade carrier is rotated relative to the second handle around the pivot lock, along the direction away from the receiving slot, to the first position, the second blade carrier contacts the limit portion, thereby it is unable to continue rotating.

10. The multifunctional tool of claim 6 , wherein the multifunctional tool further comprises a first elastic portion acting on the pivot lock, when the pivot lock can be switched between the locking state and the unlocking state, the pivot lock is maintained in the locking state under the action of the first elastic portion.

11. The multifunctional tool of claim 10 , wherein the first elastic portion is an elastic cantilever.

12. The multifunctional tool of claim 11 , wherein the elastic cantilever is mounted on the first handle.

13. The multifunctional tool of claim 6 , wherein the multifunctional tool further comprises a second elastic portion acting on the first handle and the second handle and defines a relative position between the first handle and the second handle.

14. The multifunctional tool of claim 13 , wherein the second elastic portion is a torsion spring.

15. The multifunctional tool of claim 13 , wherein the first handle comprises a locking recess, the second handle comprises a locking slot, a slidable locking button is mounted inside the locking slot, when the locking button gets into the locking recess, the locking button is maintained inside the locking recess under the action of the second elastic portion, fixing the relative position of the first handle and the second handle.

16. The multifunctional tool of claim 15 , wherein when the locking button gets into the locking recess, the second blade carrier can be in the first position, and when the second blade carrier is in the first position, the second blade carrier contacts the blade.

17. The multifunctional tool of any one of claim 1 , wherein the blade is detachably mounted on the first blade carrier.

18. The multifunctional tool of claim 17 , wherein the first blade carrier comprises a mounting slot, and the blade is detachably mounted in the mounting slot.

19. The multifunctional tool of claim 18 , wherein the first blade carrier comprises retainers for pressing/releasing the mounting slot.

20. The multifunctional tool of claim 19 , wherein the retainers are retaining screws.

21. The multifunctional tool of claim 18 , wherein positioning notches are arranged on a back of the blade, and positioning latches matching the positioning notches are arranged in the mounting slot.

22. The multifunctional tool of claim 17 , wherein the multifunctional tool further comprises a blade cartridge for storing spare blades.

23. The multifunctional tool of claim 22 , wherein the first blade carrier comprises a mounting groove matching the blade cartridge, and the blade cartridge can be accommodated and kept in the mounting groove.

24. The multifunctional tool of claim 23 , wherein the blade cartridge is pivotally connected with the first blade carrier.

25. The multifunctional tool of claim 23 , wherein the first handle comprises a sight opening, and the sight opening is connected with the mounting groove.

26. The multifunctional tool of claim 22 , wherein the blade cartridge comprises a socket for placing the spare blades.

27. The multifunctional tool of claim 26 , wherein the socket comprises a socket bottom and side walls, the socket bottom comprises a leaf spring capable of elastic activities, and the leaf spring matches the side walls to clamp and kept the spare blades in the socket.

28. The multifunctional tool of claim 1 , wherein the second blade carrie

Assignees

• Hangzhou Great Star Tools Co Ltd
• Hangzhou Great Star Ind Co Ltd
• Hangzhou Great Star Tools Co Ltd

Inventors

• Wang Weiyi

Classifications

• B26B13/22

  combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument (cigar cutters per se A24F13/24) · CPC title

• B26B13/04

  with detachable blades · CPC title

• B26B11/00

  Hand knives combined with other implements, e.g. with corkscrew, with scissors, with writing implement (combined table-ware A47G21/06) · CPC title

• B25G1/08

  with provision for storing tool elements · CPC title

• B26B11/005 Primary

  Handle also acting as a part of a scissors · CPC title