Reciprocating saw

Patent metadata

Field	Value
Publication number	US-11738397-B2
Application number	US-202016895514-A
Country	US
Kind code	B2
Filing date	Jun 8, 2020
Priority date	Jun 12, 2019
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

A method of assembling a gearcase cover assembly of a reciprocating saw. The method includes providing a gearcase cover with a cylindrical opening and a receiving portion, providing a shaft with a yoke affixed to the shaft, inserting a first end of the shaft into the cylindrical opening and rotating the shaft such that a second end of the shaft sits in the receiving portion.

First claim

What is claimed is:

1. A reciprocating saw, comprising:
a housing;
a motor housed in the housing:
a user-operable trigger configured to operate the motor;
a blade clamp driven by the motor through a reciprocating shaft, the shaft having a first end coupled to the blade clamp to couple to a blade and a second end opposed to the first end;
a gearcase comprising a gearcase base and a gearcase cover, the gearcase cover formed to include a first end including a cylindrical tube and a second end including a receiving cavity having an open face and an intermediate cavity between the cylindrical tube and the receiving cavity;
the first end of the reciprocating shaft received in a first opening of the cylindrical tube adjacent to the intermediate cavity, extending through the cylindrical tube and out of a second opening of the cylindrical tube opposed to the first opening of the cylindrical tube and the second end of the reciprocating shaft received in the receiving cavity;
and
a bearing received in the second opening of the cylindrical tube.

2. The reciprocating saw of claim 1 , wherein the gearcase cover is integrally formed via casting.

3. The reciprocating saw of claim 2 , wherein the gearcase cover is an integrally formed aluminum cast.

4. The reciprocating saw of claim 1 , further comprising a securing cover at or adjacent to the open portion;
wherein the securing cover is secured to the gearcase cover.

5. The reciprocating saw of claim 4 , wherein the securing cover is secured to the gearcase cover via screws.

6. The reciprocating saw of claim 1 , further comprising a yoke on the reciprocating shaft.

7. The reciprocating saw of claim 6 , wherein the yoke is welded to the reciprocating shaft.

8. A reciprocating saw comprising:
a housing;
a motor housed in the housing;
a user-operable trigger configured to operate the motor;
a blade clamp driven by the motor through a reciprocating shaft, the shaft having a first end coupled to the blade clamp to couple to a blade and a second end opposed to the first end;
a gearcase adjacent to the motor, the gearcase including a base and a gearcase cover;
the gearcase housing the shaft, a track roller bearing, a counterbalance, and a pin that rotates with the track roller bearing;
wherein the gearcase cover is integrally formed and comprises a first end including an opening through which the first end of the shaft projects and a second end comprising a receiving portion in which the second end of the shaft is received;
and
a bearing received in the opening.

9. The reciprocating saw of claim 8 , wherein the gearcase cover is integrally formed via casting.

10. The reciprocating saw of claim 9 , wherein the gearcase cover is an integrally formed aluminum cast.

11. The reciprocating saw of claim 8 , further comprising a securing cover at or adjacent to the open portion;
wherein the securing cover is secured to the gearcase cover.

12. The reciprocating saw of claim 11 , wherein the securing cover is secured to the gearcase cover via screws.

13. The reciprocating saw of claim 8 , further comprising a yoke on the shaft.

14. The reciprocating saw of claim 13 , wherein the yoke is welded to the shaft.

Assignees

• Black & Decker Inc

Inventors

• Kuehne Brent A
• Wu Ning

Classifications

• B23D51/161

  with dynamic balancing · CPC title

• B23D49/162 Primary

  Pad sawing devices · CPC title

• B23D51/10

  for hand-held or hand-operated devices · CPC title

• F16H57/031

  characterised by covers or lids for gearboxes · CPC title

• B23D51/02 Primary

  of beds; of guiding arrangements for work-tables or saw carriers; of frames · CPC title