Protective Shell of a Tool Battery

Patent metadata

Field	Value
Publication number	US-2018193995-A1
Application number	US-201615568761-A
Country	US
Kind code	A1
Filing date	Apr 22, 2016
Priority date	Apr 24, 2015
Publication date	Jul 12, 2018
Grant date	—

Abstract

A protective shell of a tool battery for a hand-held tool battery having a tool battery housing is disclosed. The protective shell of the tool battery is formed in a sandwich construction with an outer shell and an intermediate layer acting as a damping layer. The intermediate layer is configured softer and/or more elastic than the outer shell. The intermediate layer is disposed on the outer shell in such a way that it is disposed between the outer shell and a surface of the tool battery housing when the protective shell of the tool battery is disposed on the tool battery housing.

First claim

1 .- 16 . (canceled)

17 . A protective shell of a tool battery for a hand-held tool battery with a tool battery housing, comprising:
a sandwich construction with an outer shell and an intermediate layer, wherein the intermediate layer is a damping layer and is softer and/or more elastic than the outer shell; wherein the intermediate layer is disposed on the outer shell such that the intermediate layer is disposed between the outer shell and a surface of the tool battery housing when the protective shell is disposed on the tool battery housing.

18 . The protective shell of a tool battery according to claim 17 , wherein the outer shell has an outer shell elasticity modulus and the intermediate layer has an intermediate layer elasticity modulus and wherein the outer shell elasticity modulus is greater than the intermediate layer elasticity modulus.

19 . The protective shell of a tool battery according to claim 17 , wherein the outer shell has a higher shore hardness than the intermediate layer.

20 . The protective shell of a tool battery according to claim 17 , wherein the intermediate layer consists of an elastomer.

21 . The protective shell of a tool battery according to claim 17 , wherein the outer shell and the intermediate layer consist of a same material and have different thicknesses and wherein the intermediate layer consists of a foamed plastic.

22 . The protective shell of a tool battery according to claim 17 , wherein the sandwich construction includes an additional shell and an additional intermediate layer.

23 . The protective shell of a tool battery according to claim 22 , wherein the outer shell and/or the additional shell consists of a shock-resistant plastic.

24 . The protective shell of a tool battery according to claim 17 , wherein the intermediate layer has a wall thickness of between 0.5 mm and 10 mm and/or the outer shell has a wall thickness of between 0.5 mm and 10 mm.

25 . The protective shell of a tool battery according to claim 17 , wherein the intermediate layer has a substantially constant wall thickness.

26 . The protective shell of a tool battery according to claim 17 , wherein a wall thickness of the intermediate layer scales with an impact direction relative to a center point of gravity of the tool battery.

27 . The protective shell of a tool battery according to claim 17 , wherein an overall wall thickness of the protective shell is less than 10 mm.

28 . The protective shell of a tool battery according to claim 17 , wherein the protective shell is fastenable to the tool battery housing by an adhesive connection.

29 . The protective shell of a tool battery according to claim 17 , wherein the protective shell is fastenable to the tool battery housing by a snap-in connection.

30 . The protective shell of a tool battery according to claim 17 , wherein the outer shell and/or the intermediate layer are formed on the tool battery housing by an injection molding process.

31 . The protective shell of a tool battery according to claim 17 , wherein the protective shell is configured as a corner protector and/or an edge protector, wherein the protective shell is configured to precisely accommodate a corner and/or an edge of the tool battery housing and to leave a predominate portion of the surface of the tool battery housing uncovered.

32 . A hand-held tool battery, comprising:
a tool battery housing; and a protective shell according to claim 17 , wherein the protective shell is fastenable to the tool battery housing.

Assignees

• Hilti Ag

Inventors

• Runau Benjamin

Classifications

• B25F5/006

  Vibration damping means · CPC title

• B25F5/02 Primary

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

• H01M50/262

  with fastening means, e.g. locks · CPC title

• H01M50/231

  having a layered structure · CPC title

• H01M50/227 Primary

  Organic material · CPC title