It is an object of the invention to provide a technique to further increase protection performance for a battery pack of power tool. A representative power tool may include a tool body to which a tool bit is coupled to perform a predetermined operation, a driving motor that is disposed within the to
It is an object of the invention to provide a technique to further increase protection performance for a battery pack of power tool. A representative power tool may include a tool body to which a tool bit is coupled to perform a predetermined operation, a driving motor that is disposed within the tool body, a battery pack that supplies driving current to the driving motor, the battery pack being removably mounted to the tool body and placed on the outside of the tool body in an exposed state, and a protector that is removably mounted to the tool body to protect the battery pack. The protector may include a battery pack protection area that protects the battery pack mounted to the tool body when the protector is mounted to the tool body. The battery pack protection area is dosed on at least part of the outer surface of the battery pack with a clearance and prevents transmission of external force upon the battery pack protection area to the battery pack.
대표청구항▼
1. A power tool comprising: a tool body to which a tool bit is coupled to perform a predetermined operation,a driving motor that is disposed within the tool body,a battery pack that supplies driving current to the driving motor, the battery pack being removably mounted to the tool body and placed on
1. A power tool comprising: a tool body to which a tool bit is coupled to perform a predetermined operation,a driving motor that is disposed within the tool body,a battery pack that supplies driving current to the driving motor, the battery pack being removably mounted to the tool body and placed on the outside of the tool body in an exposed state, anda protector that is removably mounted to the tool body to protect the battery pack, wherein:the protector includes a battery pack protection area that protects the battery pack mounted to the tool body when the protector is mounted to the tool body, andthe battery pack protection area is disposed on at least part of the outer surface of the battery pack with a clearance and prevents transmission of external force upon the battery pack protection area to the battery pack. 2. The power tool as defined in claim 1, wherein the tool body includes a mounting portion for removably mounting an attachment that is provided as an aid in the operation of the tool bit, and either the protector or the attachment is selectively mounted to the mounting portion. 3. The power tool as defied in claim 1 wherein: the tool body includes a grip extending in a direction that intersects with the longitudinal direction of the tool body,the battery pack can be mounted to and removed from an extending end of the grip by moving the battery pack in a direction that intersects with the extending direction of the grip or in the extending direction of the grip,the battery pack includes an operating portion that is operated in order to allow the battery pack to be removed from the extending end of the grip,the protector includes an open area through which the battery pack is allowed to pass without interfering with the protector, when a user removes the battery pack from the extending end of the grip by holding the battery pack and moving the battery pack in the direction that intersects with the extending direction of the grip or in the extending direction of the grip, while operating the operating portion by the finger to allow removal of the battery pack and keeping the removal allowed state, andthe battery protection area is provided in an area other than the open area. 4. The power tool as defined in claims 1, wherein an elastic element is provided at least in part of the battery pack protection area. 5. The power tool as defined in claim 1, wherein: the tool body includes a mounting portion for removably mounting an attachment that is provided as an aid in the operation of the tool bit, and either the protector or the attachment is selectively mounted to the mounting portion,the mounting portion includes an engagement groove and a mounting portion having a screw hole,the protector includes a mounting hole and an engagement piece which can be inserted into and removed from the engagement groove, andthe protector is fastened, with the engagement piece being inserted into the engagement groove, by a mounting screw passed through the mounting hole and driven into the screw hole. 6. The power tool as defined in claim 1, wherein the battery pack protection area includes right and left side frames extending along the sides of the battery pack in the longitudinal direction and a connecting plate that connects the side frames on the bottom side, whereby the protector has a frame structure having open top, front and back. 7. A protector for a power tool that includes a a tool body to which a tool bit is coupled to perform a predetermined operation,a driving motor that is disposed within the tool body and drives the tool bit, anda battery pack that supplies driving current to the driving motor, the battery pack being removably mounted to the tool body and placed on the outside of the tool body in an exposed state, the protector being removably mounted to the tool body for protecting the battery pack,the protector comprising a battery pack protection area that protects the battery pack mounted to the tool body when the protector is mounted to the tool body,wherein the battery pack protection area is disposed on at least part of the outer surface of the battery pack with a clearance and prevents transmission of external force upon the battery pack protection area to the battery pack. 8. The protector as defined in claim 7, wherein an elastic element is provided at least in part of the battery pack protection area. 9. The protector as defined in claim 7, wherein a front end portion of a side frame of the protector protrudes forward from the front of the battery pack, and a rear end portion of the side frame of the protector protrudes rearward from the back of the battery pack.
Rief, Joachim; Mönch, Corinna; Locher, Ottmar; Zeller, Tobias; Hallendorf, Johan; Landberg, Gustav, Carrier system for a backpack energy source, energy source and backpack energy source assembly.
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