ELECTRIC WORKING MACHINE AND ELECTRIC WORKING MACHINE SYSTEM

• US 20140050963A1
• Filed: 08/20/2013
• Published: 02/20/2014
• Est. Priority Date: 08/20/2012
• Status: Active Grant

• Current Assignee: Koki Holdings Co., Ltd.
• Original Assignee: Hitachi KOKI Company Limited (Koki Holdings Co., Ltd.)
• Inventors: Kosugi, Shingo, Tomita, Hirohisa, Ishikawa, Megumi
• Granted Patent: US 9,876,201 B2
• Time in Patent Office: Days
• US Class Current: 429/100
• CPC Class Codes: A01D 34/902 Ergonomic provisions
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 50/247 specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
• CPC Class Codes: H01M 50/256 Carrying devices, e.g. belts
• CPC Class Codes: H01M 50/267 having means for adapting to batteries or cells of different types or different sizes
• CPC Class Codes: H01M 6/5027 Dummy cells

Abstract

An electric working machine including: a housing to which a battery is configured to be detachably mounted, wherein the housing is configured such that a weight unit including a weight can be mounted to the housing.

Claims

1. An electric working machine comprising:

a housing to which a battery is configured to be detachably mounted,

wherein the housing is configured such that a weight unit including a weight can be mounted to the housing.

2. The electric working machine according to claim 1,

wherein the weight is configured to be variable in weight.

3. The electric working machine according to claim 1,

wherein the housing includes a hole portion in which the weight is configured to be disposed.

4. The electric working machine according to claim 3,

wherein the weight unit includes a cover portion configured to cover an opening of the hole portion.

5. The electric working machine according to claim 4,

wherein the opening of the hole portion includes a stepped portion to which the cover portion is configured to engage.

6. The electric working machine according to claim 4,

wherein the hole portion is a through-hole, and

wherein the cover portion is configured to be provided to both openings of the hole portion.

7. The electric working machine according to claim 6,

wherein the weight unit further includes a shaft portion extending into the hole portion from at least one of the cover portions, and

wherein the weight includes a plurality of plates each including a through-hole through which the shaft portion passes and both cover portions are detachably fixed to each other via the shaft portion.

8. The electric working machine according to of claim 4,

wherein the weight unit further includes a shaft portion extending into the hole portion from the cover portion, and

wherein the weight includes a plurality of plates each including a through-hole through which the shaft portion passes.

9. The electric working machine according to claim 7,

wherein the weight unit further includes an elastic body having a through-hole through which the shaft portion passes, and

wherein the plates are restricted from sliding in an axial direction of the plates when the elastic body is arranged side by side to the plates.

10. The electric working machine according to claim 1,

wherein an adapter is configured to be detachably mounted to the housing instead of the battery and is configured to receive electric power from an external power source, and

wherein the weight unit is provided to the adapter.

11. The electric working machine according to claim 1,

wherein a dummy pack is configured to be detachably mounted to the housing instead of the battery,

wherein an adapter is mounted to the dummy pack and is configured to receive electric power from an external power source, and

wherein the weight unit is provided to the dummy pack.

12. An electric working machine comprising:

a housing,

a battery mounted to the housing, and

an adapter detachably mounted to the battery and configured to receive electric power from an external power source,

wherein the electric working machine is configured to be operated by using the electric power from the external power source.

13. An electric working machine system comprising:

an electric working machine including a housing;

a battery configured to be detachably mounted to the housing; and

a weight unit including a weight and configured to be detachably mounted to the housing.

14. The electric working machine system according to claim 13,

wherein the weight is configured to be variable in weight.

15. The electric working machine system according to claim 13, further comprising an adapter which is configured to be detachably mounted to the housing instead of the battery and is configured to receive electric power from an external power source,

wherein the weight unit is provided to the adapter.

16. The electric working machine system according to claim 13, further comprising:

a dummy pack which is configured to be detachably mounted to the housing instead of the battery; and

an adapter which is mounted to the dummy pack and is configured to receive electric power from an external power source,

wherein the weight unit is provided to the dummy pack.