Tool machine with an output spindle that moves back and forth

Patent metadata

Field	Value
Publication number	US-9561552-B2
Application number	US-201213984214-A
Country	US
Kind code	B2
Filing date	Jan 9, 2012
Priority date	Feb 9, 2011
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

A tool machine includes an output spindle that moves back and forth and includes a drive motor. The spindle and the motor are coupled to each other via a transmission system. A longitudinal face of the output spindle and a longitudinal face of the drive motor run adjacent to each other such that the drive motor lies next to the output spindle. A very compact configuration is thereby produced.

First claim

The invention claimed is:

1. A reciprocating saw, comprising:
a reciprocating-motion output spindle having a spindle longitudinal axis; and
a drive motor having a motor longitudinal axis,
wherein the output spindle and the drive motor are coupled to each other via a transmission, the drive motor including a drive portion connected to the transmission and a first end distant from the transmission,
wherein a longitudinal side of the output spindle and a longitudinal side of the drive motor extend next to each other such that the drive motor is disposed next to the output spindle,
wherein the motor longitudinal axis and spindle longitudinal axis intersect at a first angle on a side that is distant from the transmission such that the drive motor and the output spindle are inclined such that the drive portion is at a greater distance from the output spindle than the first end of the drive motor,
wherein the reciprocating saw has a handle that, with the output spindle, is configured to form an obtuse angle, and
wherein the first angle and the obtuse angle are disposed in one plane and on one side of the output spindle, such that the drive motor is disposed beneath the output spindle.

2. The reciprocating saw as claimed in claim 1 , wherein:
the output spindle has a fastening portion configured to fasten to a saw,
the drive motor has a drive portion connected to the transmission and has a first end distant from the transmission, and
the first end of the drive motor that is distant from the transmission is disposed closer to the fastening portion than the drive portion connected to the transmission.

3. The reciprocating saw of claim 1 , further comprising a housing including:
a receiving region configured to receive the output spindle; and
a grip portion having a bulged portion configured to accommodate the drive motor, which is located beneath the receiving region,
wherein the receiving region and the bulged portion have an oval cross-sectional area defined in a plane that is perpendicular in relation to a longitudinal axis of the output spindle and configured to at least partially surround the drive motor and the output spindle.

4. The reciprocating saw as claimed in claim 1 , wherein the first angle is between 5° and 30°.

5. The reciprocating saw as claimed in claim 1 , wherein the transmission includes a wobble plate assembly disposed on a transmission shaft that extends parallelwise in relation to the longitudinal axis of the drive motor.

6. The reciprocating saw as claimed in claim 5 , wherein the transmission shaft is located in a gap formed by the drive motor and the output spindle.

7. The reciprocating saw as claimed in claim 5 , wherein:
the wobble plate assembly has a first portion disposed around the transmission shaft and a second portion configured to engage in the output spindle, and
the first portion and the second portion form a second angle equal to the first angle subtracted from 180°.

8. The reciprocating saw of claim 1 , further comprising: a fastening portion on the output spindle configured to fasten to a saw;
a housing including a receiving region configured to receive the output spindle and a grip portion configured to accommodate the drive motor;
a support device removably mountable to the housing and including a support element that delimits a receiving region to receive a workpiece for engagement with a saw fastened to the output spindle.

9. The reciprocating saw of claim 8 , wherein the support device is U-shaped with the spindle axis passing through the U-shape when the support device is mounted to the housing.

10. The reciprocating saw of claim 9 , wherein the support device includes:
a fastening element configured to be removably mounted to the housing;
a pair of support elements defining the U-shape of the support device and disposed at an angle relative to each other to define the receiving region therebetween; and
a pair of elongated carrier elements, each carrier element pivotably connected at one end to the fastening element and attached at an opposite end to at least one of the pair of support elements on a corresponding side of the U-shape.

11. The reciprocating saw of claim 10 , further comprising a biasing spring disposed at the pivotable connection of the carrier elements to the fastening element, the biasing spring adapted to bias the support elements toward the workpiece received within the receiving region.

12. A reciprocating saw, comprising:
a reciprocating-motion output spindle; and
a drive motor,
wherein the output spindle and the drive motor are coupled to each other via a transmission, the drive motor including a drive portion connected to the transmission and a first end distant from the transmission, and
wherein a longitudinal side of the output spindle and a longitudinal side of the drive motor extend next to each other such that the drive motor is disposed next to the output spindle, and
wherein the longitudinal axis of the drive motor and the longitudinal axis of the output spindle intersect at a first angle on a side that is distant from the transmission such that the drive motor and the output spindle are inclined such that the drive portion is at a greater distance from the output spindle than the first end of the drive motor.

13. The reciprocating saw as claimed in claim 12 , wherein the first angle is between 5° and 30°.

14. The reciprocating saw as claimed in claim 13 , wherein the first angle is between 15° and 20°.

15. The reciprocating saw as claimed in claim 14 , wherein the first angle is between 17°.

16. The reciprocating saw as claimed in claim 12 , wherein the transmission includes a wobble plate assembly disposed on a transmission shaft that extends parallelwise in relation to the longitudinal axis of the drive motor.

17. The reciprocating saw as claimed in claim 16 , wherein the transmission shaft is located in a gap formed by the drive motor and the output spindle.

18. The reciprocating saw as claimed in claim 16 , wherein:
the wobble plate assembly has a first portion disposed around the transmission shaft and a second portion configured to engage in the output spindle, and
the first portion and the second portion form a second angle equal to the first angle subtracted from 180°.

19. The reciprocating saw as claimed in claim 12 , wherein the reciprocating saw has a handle that, with the output spindle, is configured to form an obtuse angle.

20. The reciprocating saw of claim 12 , further comprising a housing including:
a receiving region configured to receive the output spindle; and
a grip portion having a bulged portion configured to accommodate the drive motor, which is located beneath the receiving region,
wherein the receiving region and the bulged portion have an oval cross-sectional area defined in a plane that is perpendicular in relation to a longitudinal axis of the output spindle and configured to at least partially surround the drive motor and the output spindle.

21. A reciprocating saw, comprising:
a reciprocating-motion output spindle; and
a drive motor,
wherein the output spindle and the drive motor are coupled to each other via a transmission, the drive motor including a drive portion connected to the transmission and a first end distant from the transmission, and
wherein a longitudinal side of the output spindle and a longitudinal side of the drive motor extend next to each other such that the drive motor is disposed next to the output spindle,
wherein the longitudina

Assignees

• Kocsis Timea
• Koncsik Tamas
• Zador Endre
• Bosch Gmbh Robert

Inventors

• Kocsis Timea
• Koncsik Tamas
• Zador Endre

Classifications

• B25F5/02

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title

• B23D51/16 Primary

  of drives or feed mechanisms for straight tools, e.g. saw blades, or bows · CPC title