Accessory system for a power tool

Patent metadata

Field	Value
Publication number	US-10076832-B2
Application number	US-201615221498-A
Country	US
Kind code	B2
Filing date	Jul 27, 2016
Priority date	Jul 27, 2016
Publication date	Sep 18, 2018
Grant date	Sep 18, 2018

Abstract

An accessory holder for holding an accessory of a power tool includes a support frame and an actuator. The support frame includes a tool connection structure configured to connect to a driven output of the power tool and an accessory connection structure fixedly extending from the tool connection structure and defining at least one recess. The actuator is rotatably connected to the accessory connection structure and is rotatable to a clamped position and an unclamped position. The actuator is configured to deform a portion of the accessory into the at least one recess when the actuator is in the clamped position, such that the accessory is clamped to the accessory connection structure when the actuator is in the clamped position.

First claim

What is claimed is:

1. An accessory holder for holding an accessory of a power tool comprising:
a support frame including a tool connection structure configured to connect to a driven output of the power tool and an accessory connection structure fixedly extending from said tool connection structure and defining at least one recess; and
an actuator rotatably connected to said accessory connection structure and rotatable about a rotational axis to a clamped position and an unclamped position, said actuator configured to deform a portion of the accessory into said at least one recess away from said rotational axis when said actuator is in said clamped position, such that the accessory is clamped to said accessory connection structure when said actuator is in said clamped position.

2. The accessory holder of claim 1 , further comprising:
a cam member of said actuator,
wherein a first distance is defined between said cam member and a bottom surface of said at least one recess when said actuator is in said unclamped position,
wherein a second distance is defined between said cam member and said bottom surface of said at least one recess when said actuator is in said clamped position, and
wherein said second distance is less than said first distance.

3. The accessory holder of claim 2 , further comprising:
a stop protrusion extending from said cam member and configured to generate audible or tactile feedback when said actuator is moved to said clamped position against the accessory.

4. The accessory holder of claim 2 , further comprising:
an adjustment assembly configured to adjust a length of said first distance.

5. The accessory holder of claim 4 , wherein the adjustment assembly includes:
a yoke, a shaft extending from said yoke, and a knob,
wherein said actuator is operably connected to said yoke,
wherein said shaft extends through a shaft opening defined by said accessory connection structure,
wherein said knob is threadingly engaged with said shaft, such that said accessory connection structure is located between said knob and said yoke.

6. The accessory holder of claim 1 , wherein:
said at least one recess is defined by a first edge of said accessory connection structure and an opposite second edge of said accessory connection structure,
said actuator is forced against the accessory between said first edge and said opposite second edge and is configured to bend the accessory at least partially into said at least one recess, and
the accessory does not extend into said at least one recess when said actuator is in said unclamped position.

7. The accessory holder of claim 1 , wherein said actuator is movable to said clamped position and said unclamped position when said tool connection structure is connected to the driven output.

8. The accessory holder of claim 1 , further comprising:
a yoke to which said actuator is operably connected,
a shaft extending from said yoke through a shaft opening defined by said accessory connection structure,
a knob threadingly engaged with said shaft, such that said accessory connection structure is located between said knob and said yoke.

9. The accessory holder of claim 8 , wherein:
said at least one recess includes a first recess and a second recess, and
said shaft opening is located between said first recess and said second recess.

10. The accessory holder of claim 1 , further comprising:
an adjustment assembly including (i) a clamping bolt including a head and a clamp shaft extending from the head, and (ii) a yoke operably connected to said clamp shaft, such that said accessory connection structure is located between said head and said yoke,
wherein said accessory connection structure defines at least one first ramped surface located adjacent to said head,
wherein said head defines at least one second ramped surface configured for movement relative to said at least one first ramped surface,
wherein said actuator is operably connected to said yoke,
wherein said actuator and said adjustment assembly are rotatable about a longitudinal axis defined by said clamp shaft to a first position that causes said at least one first ramped surface and said at least one second ramped surface to space said actuator a first distance from said at least one recess, and
wherein said actuator and said adjustment assembly are rotatable about said longitudinal axis to a second position that causes said at least one first ramped surface and said at least one second ramped surface to space said actuator a second distance from said at least one recess, and
wherein said second distance less than said first distance.

11. The accessory holder of claim 10 , wherein:
said accessory connection structure includes at least one detent located at an apex of said at least one first ramped surface,
said head includes at least one protrusion located at an apex of said at least one second ramped surface,
said at least one protrusion is configured to be received by said at least one detent when said adjustment assembly is in said second position.

12. An accessory system for use with a power tool having a driven output, the accessory system comprising:
an accessory including at least one connection prong defining a thickness; and
an accessory holder including
a support frame having (i) a tool connection structure configured to connect to the driven output, and (ii) an accessory connection structure fixedly extending from said tool connection structure and defining an accessory plane in which said at least one connection prong is positioned and at least one recess located on an opposite side of said accessory plane from said at least one connection prong, and
at least one cam member operably connected to said support frame and rotatable about a rotational axis to a clamped position and an unclamped position, said rotational axis extending parallel to said accessory plane, said at least one cam member spaced apart from said accessory plane by a first distance greater than said thickness when said at least one cam member is in said unclamped position and said at least one cam member spaced apart from said accessory plane by a second distance less than said thickness when said at least one cam member is in said clamped position, such that said at least one cam member deforms a portion of said at least one connection prong into said at least one recess when said at least one cam member is in said clamped position.

13. The accessory system of claim 12 , further comprising:
a first protrusion extending from said accessory connection structure and located a third distance from an intersection of said tool connection structure and said accessory connection structure;
a second protrusion extending from said accessory connection structure and located a fourth distance from said intersection of said tool connection structure and said accessory connection structure,
a first detent defined by said accessory and configured to receive said first protrusion when said accessory is positioned in said accessory plane; and
a second detent defined by said accessory and configured to receive said second protrusion when said accessory is positioned in said accessory plane,
wherein said third distance is greater than said fourth distance.

14. The accessory system of claim 12 , wherein:
said at least one connection prong includes a first connection prong and a second connection prong spaced apart from each other by a prong space,
said at least one recess includes a first recess and a second recess,
said at least one cam member includes a first cam member and a second cam member,
said first cam member is

Assignees

• Bosch Tool Corp
• Bosch Gmbh Robert

Inventors

• Nagy Balazs

Classifications

• Y10T279/3406

  Adapter · CPC title

• B23B31/19

  moving parallel to the axis of the chuck {(B23B31/185 takes precedence)} · CPC title

• B27B19/006

  with oscillating saw blades; Hand saws with oscillating saw blades · CPC title

• B27B5/32

  Devices for securing circular saw blades to the saw spindle · CPC title

• B25F3/00 Primary

  Associations of tools for different working operations with one portable power-drive means; Adapters therefor · CPC title