IP Library Granted Patent US 10,667,892
Granted Patent B2
US 10,667,892 · App. 15/571,780 · Granted Jun 2, 2020

Electrical appliance for personal care

Inventors: Armin Bärtschi (Winznau, CH); Herbert Fischer (Reitnau, CH); Michael Schär (Egolzwil, CH)
Assignee: TRISA HOLDING AG
A61C17/3481A45D29/05A45D29/14A45D29/17A45D40/262A46B5/0095A46B9/026A46B9/028A46B9/04A46B9/06A46B13/008A46B13/023A47K7/04A61C15/047A61C15/048A61C17/16A61C17/32B26B21/38A46B2200/108A46B2200/1053A46B2200/1066A61C15/00
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Quick Facts
Patent No.
US 10,667,892
App. No.
15/571,780
Granted
Jun 2, 2020
Kind
B2
Abstract

An electrical appliance for personal care includes a handle with a longitudinal axis, and a plug-on part which can be attached to the handle, wherein a vibration unit having an electric motor and an eccentric element is arranged in the handle, wherein a plug-like coupling structure protrudes from the handle, which plug-like coupling structure forms an interface with a substantially mirror-inverted socket-like coupling structure of the plug-on part, wherein the interface has at least two stages with different circumferential geometry, wherein at least one of the stages has a rotation-preventing means between the handle and the plug-on part, and wherein a stop surface of the handle for the plug-on part extends obliquely with respect to the longitudinal axis of the handle.

Claims (42)

1. An electrical appliance for personal care, the electrical appliance comprising

a handle with a longitudinal axis,

a plug-on part which can be attached to the handle, and

a vibration unit having an electric motor and an eccentric element arranged in the handle, wherein

a plug-shaped coupling structure that protrudes from the handle and that forms an interface with a substantially mirror-inverted socket-shaped coupling structure of the plug-on part,

the interface has at least two stages with different circumferential geometry,

at least one of the stages comprises a rotation-preventing means between the handle and the plug-on part,

a stop surface of the handle for the plug-on part extends obliquely with respect to the longitudinal axis of the handle,

the handle comprises a hand body with a base body and the plug-on part comprises a base body, and

a material from which the base body of the hand body is formed is harder than a material from which the base body of the plug-on part is formed.

2. The electrical appliance as claimed in claim 1 , wherein the stop surface and the longitudinal axis of the handle enclose an angle α of between 30° and 70°.

3. The electrical appliance as claimed in claim 1 , wherein a dimension from the stop surface to a rear end of the handle is greater on a front face than on a rear face of the handle, such that the stop surface extends from the front rearward.

4. The electrical appliance as claimed in claim 1 , wherein the stop surface of the handle and a rotation axis, inclined with respect to the longitudinal axis of the handle, of the electric motor enclose an angle φ of between 35° and 90°.

5. The electrical appliance as claimed in claim 1 , wherein the plug-shaped coupling structure of the handle and the mirror-inverted socket-shaped coupling structure of the plug-on part allow straight plugging-on.

6. An electrical appliance for personal care, the electrical appliance comprising

a handle with a longitudinal axis,

a plug-on part which can be attached to the handle, and

a vibration unit having an electric motor that is arranged in the handle, wherein

a plug-shaped coupling structure that protrudes from the handle and that forms an interface with a substantially mirror-inverted socket-shaped coupling structure of the plug-on part,

the interface has at least two stages with different circumferential geometry,

a stop surface between the handle and the plug-on part extends obliquely with respect to the longitudinal axis of the handle,

the handle has a cam which cooperates with a mirror-inverted recess of the plug-on part in the manner of a snap-fit connection,

the handle comprises a hand body with a base body and the plug-on part comprises a base body, and

a material from which the base body of the hand body is formed is harder than a material from which the base body of the plug-on part is formed.

7. The electrical appliance as claimed in claim 6 , wherein the hand body is formed from a hard component, and in that the plug-on part is formed from a hard component.

8. The electrical appliance as claimed in claim 6 , wherein the cam is tree-shaped.

9. The electrical appliance as claimed in claim 6 , wherein the recess of the plug-on part has tolerances, with respect to the cam, of 0 to 0.4 mm.

10. An electrical appliance for personal care, the electrical appliance comprising

a handle with a longitudinal axis,

a plug-on part which can be attached to the handle, and

a vibration unit having an electric motor and an eccentric element arranged in the handle, wherein

a plug-shaped coupling structure that protrudes from the handle and that forms an interface with a substantially mirror-inverted socket-shaped coupling structure of the plug-on part,

the interface has at least two stages with different circumferential geometry,

at least one of the stages comprises a rotation-preventing means between the handle and the plug-on part,

the electric motor is arranged in the region of the interface,

the rotation axis of the electric motor and the longitudinal axis of the handle enclose an angle β of between 3° and 20°,

the handle comprises a hand body with a base body and the plug-on part comprises a base body, and

a material from which the base body of the hand body is formed is harder than a material from which the base body of the plug-on part is formed.

11. The electrical appliance as claimed in claim 10 , wherein the rotation axis of the electric motor and the longitudinal axis of the handle enclose an angle β of between 5° and 15°.

12. The electrical appliance as claimed in claim 10 , wherein the electric motor is arranged on a carrier element.

13. The electrical appliance as claimed in claim 12 , wherein the electric motor is held in the carrier element by clamping.

14. The electrical appliance as claimed in claim 12 , wherein the carrier element has a rear motor stop for the rear end of the electric motor.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 3, 2017
From: BÄRTSCHI, ARMIN; FISCHER, HERBERT; SCHÄR, MICHAEL
To: TRISA HOLDING AG
Reel/Frame 044366/0585 →
Priority Claims (1)
EP 15166214 · May 4, 2015 · regional
Continuity (1)
Related Publication 20190117356A1 · Apr 25, 2019
Cited By (29)
US 1,057,432 US 1,072,491 US 1,082,326 US 1,092,981 US 1,095,042 US 1,097,586 US 1,104,480 US 1,104,481 US 1,105,760 US 1,108,156 US 1,108,157 US 1,131,029 US 1,140,304 US 12,194,664 US 12,208,531 US 12,226,008 US 12,226,010 US 12,226,922 US 12,239,217 US 12,240,135 US 12,245,685 US 12,257,116 US 12,280,513 US 12,376,670 US 12,376,671 US 12,419,409 US 12,420,463 US 12,521,900 US 12,543,845