Cutter clamp, an attachment device, a cutter clamp kit and a holding frame

Patent metadata

Field	Value
Publication number	US-11305405-B2
Application number	US-201816640867-A
Country	US
Kind code	B2
Filing date	May 2, 2018
Priority date	Aug 28, 2017
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

The present disclosure relates to a cutter clamp (8, 37) that comprises a first arm part (10, 39) and a second arm part (11, 40), where the arm parts (10, 11; 39, 40) are arcuate and arranged to adjustably at least partially enclose a major part of a circumference (57, 63) having a center (58, 64). The cutter clamp (8, 37) comprises at least one hollow rod (21, 22; 48, 62) arranged for receiving a mounting rod (36) for a power cutter (1, 56) in a pivoting manner. The smaller circumference the arm parts (10, 11; 39, 40) are adjusted for, the closer to the center (58, 64) said hollow rod (21, 22; 48, 62) is moved. The present disclosure also relates to a cutter clamp attachment device (68), a cutter clamp kit and a cutter clamp holding frame (76).

First claim

The invention claimed is:

1. A cutter clamp that comprises a first arm part and a second arm part, where the first and second arm parts are arcuate and arranged to adjustably at least partially enclose a major part of a circumference having a center, wherein the cutter clamp comprises a hollow rod arranged for receiving a mounting rod for a power cutter in a pivoting manner, wherein the smaller circumference the first and second arm parts are adjusted for, the closer to the center said hollow rod is moved, wherein the first and second arm parts comprise a corresponding first end and a second end, wherein a first arm second end is attached to the second arm in a pivoting manner by means of an arm attachment rod between a second arm first end and a second arm second end.

2. The cutter clamp according to claim 1 , wherein the second arm part comprises a first screw holder positioned between the first arm second end and the second arm second end, and wherein the first arm part comprises a hollow pivoting rod that in turn is attached to a second screw holder.

3. The cutter clamp according to claim 2 , wherein the hollow rod is attached to a corresponding one of the first arm part or the second arm part, such that when the first arm part is adjusted, the hollow rod moves relative to the second arm part.

4. The cutter clamp according to claim 2 , wherein the second arm part comprises a further hollow rod positioned between the first screw holder and the second arm second end.

5. A cutter clamp that comprises a first arm part and a second arm part, wherein the first and second arm parts are arcuate and arranged to adjustably at least partially enclose a major part of a circumference having a center, wherein the cutter clamp comprises a hollow rod arranged for receiving a mounting rod for a power cutter in a pivoting manner, wherein the cutter clamp comprises a locking screw that is rotatably attached to a first screw holder and is arranged to engage threads comprised in a second screw holder such that turning the locking screw enables adjustment of the first and second arm parts, wherein the first and second arm parts comprise a corresponding first end and second end, wherein a first arm second end is attached to the second arm in a pivoting manner by means of an arm attachment rod between a second arm first end and a second arm second end, wherein the hollow rod is positioned between the first screw holder and the second arm second end.

6. The cutter clamp according to claim 5 , wherein the second arm part comprises the first screw holder positioned between the first arm second end and the second arm second end, wherein the first arm part comprises an attachment rod that is attached to the second screw holder.

7. The cutter clamp according to claim 5 , wherein the second arm part comprises contact teeth arranged to contact a pipe.

8. A cutter clamp that comprises a first arm part and a second arm part, wherein the first and second arm parts are arcuate and arranged to adjustably at least partially enclose a major part of a circumference having a center, wherein the cutter clamp comprises a hollow rod arranged for receiving a mounting rod for a power cutter in a pivoting manner, wherein the smaller circumference the arm parts are adjusted for, the closer to the center said hollow rod is moved, wherein the cutter clamp comprises a first intermediate part and a second intermediate part, wherein the first and second intermediate parts connect the first and second arm parts, and wherein a locking screw at least partly runs via the first and second intermediate parts, and when the arm parts are adjusted, the hollow rod moves relative to the first and second arm parts by sliding in a corresponding elongated slot formed in a corresponding one of the first arm part of the second arm part.

9. The cutter clamp according to claim 8 , wherein the cutter clamp comprises a locking screw that is rotatably attached to a first screw holder and is arranged to engage threads comprised in a second screw holder such that turning the locking screw enables the adjustment of the first and second arm parts.

10. The cutter clamp according to claim 9 , wherein the first intermediate part comprises the first screw holder and said hollow rod, while the second intermediate part comprises the second screw holder.

11. An attachment device adapted for attaching a mounting part to a power transfer cover for a power cutter, wherein the attachment device comprises a first leg part and a second leg part, the first and second leg parts being separated by an intermediate part, wherein the mounting part is attached to the first leg part, wherein furthermore the first and second leg parts are adapted to be positioned on opposite sides of the power transfer cover such that at least one of the first leg part or the second leg part is received and retained by a corresponding leg holding arrangement.

12. The attachment device according to claim 11 , wherein the mounting part comprises a mounting rod that is adapted to be connected to a cutter clamp that comprises a first arm part and a second arm part, where the first and second arm parts are arcuate and arranged to adjustable at least partially enclose a major part of a circumference having a center, wherein the cutter clamp comprises a hollow rod arranged for receiving a mounting rod for a power cutter in a pivoting manner, wherein the smaller circumference the first and second arm parts are adjust for, the closer to the center said hollow rod is moved, wherein the first and second arm parts comprise a corresponding first end and a second end, wherein a first arm second end is attached to the second arm in a pivoting manner by means of an arm attachment rod between a second arm first end and a second arm second end.

13. A cutter clamp kit, wherein the cutter clamp kit comprises the cutter clamp according to claim 1 , a power transfer cover and an attachment device.

14. A holding frame adapted to be attached to a ring saw, wherein the holding frame comprises a first leg part and second leg part, wherein the first and second leg parts are separated by an intermediate part, wherein the first and second leg parts are adapted to be fastened to the ring saw on opposite sides of the ring saw with respect to a cutting plane of a ring saw blade, wherein the holding frame comprises an attachment flange that is attached to the first leg part, wherein the attachment flange is arranged to be releasably attached to a mounting rod that is adapted to be connected to a cutter clamp comprising a hollow rod arranged for receiving the mounting rod.

15. A holding frame according to claim 14 , wherein the mounting rod has a threaded end, and the attachment flange comprises corresponding inner threads.

16. A holding frame adapted to be attached to a ring saw, wherein the holding frame comprises a first leg part and a second leg part, the first and second leg parts are separated by an intermediate part wherein the first and second leg parts are adapted to be fastened to the ring saw on opposite sides of the ring saw with respect to a cutting plane of a ring saw blade, wherein the holding frame comprises a mounting rod that is directly attached to the first leg part in a fixed manner, wherein the mounting rod is adapted to be connected to a cutter clamp comprising a hollow rod arranged for receiving the mounting rod.

Assignees

• Husqvarna Ab

Inventors

• Almqvist Torbjörn
• Lerbro Robert
• Carlsson Pär

Classifications

• B27B17/0016

  Devices to adapt the chain saw for other purposes, e.g. drilling · CPC title

• B25B5/10

  using screws · CPC title

• B23D57/0046

  of devices for feeding, conveying or clamping work · CPC title

• B23D45/12

  with a circular saw blade for cutting tubes · CPC title

• B23D45/16

  Hand-held sawing devices with circular saw blades · CPC title