IP Library › Granted Patent US 11,211,804
Granted Patent B2
US 11,211,804 · App. 16/808,025 · Granted Dec 28, 2021

Electrical device

Inventors: Junichi Murakami (Anjo, JP); Junya Yamaguchi (Anjo, JP); Hideyuki Taga (Anjo, JP)
Assignee: MAKITA CORPORATION
H02J7/0045H01M10/44H01M50/20H01M50/543H01R13/62H02J7/0044H01M2220/30
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Quick Facts
Patent No.
US 11,211,804
App. No.
16/808,025
Granted
Dec 28, 2021
Kind
B2
Abstract

An electrical device may be provided with: a housing to which a battery pack is attached detachably by sliding the battery pack in a sliding direction; a battery connection terminal configured to be electrically connected to the battery pack attached to the housing; and a terminal cover configured to move between a protection position for protecting the battery connection terminal and an exposure position for exposing the battery connection terminal. The housing may include a cover rail extending along the sliding direction. The terminal cover may include: a cover body having a shape that at least partially covers the battery connection terminal; and a hook formed integrally with the cover body, and the hook is engaged with the cover rail so as to slide in the sliding direction.

Claims (30)

1. An electrical device, comprising:

a housing to which a battery pack is attached detachably by sliding the battery pack in a sliding direction;

a battery connection terminal configured to be electrically connected to the battery pack attached to the housing; and

a terminal cover configured to move between a protection position for protecting the battery connection terminal and an exposure position for exposing the battery connection terminal,

wherein

the housing includes a cover rail extending along the sliding direction,

the terminal cover includes:

a cover body having a shape that at least partially covers the battery connection terminal; and

a hook formed integrally with the cover body, and

the hook is engaged with the cover rail so as to slide in the sliding direction.

2. The electrical device according to claim 1 , wherein

the cover rail includes a first cover rail and a second cover rail, and

the hook includes a first hook engaged with the first cover rail so as to slide in the sliding direction and a second hook engaged with the second cover rail so as to slide in the sliding direction.

3. The electrical device according to claim 2 , wherein the battery connection terminal is disposed between the first cover rail and the second cover rail.

4. The electrical device according to claim 1 , wherein the housing further includes a cover detachment prevention member configured to prevent the hook from moving and/or deforming in such a way as to cause the hook to be disengaged from the cover rail.

5. The electrical device according to claim 1 , further comprising a tension spring housed inside the housing, wherein

the terminal cover is biased in a direction from the exposure position toward the protection position by elastic restoring force of the tension spring.

6. The electrical device according to claim 5 , wherein

one end of the tension spring is held by the terminal cover,

another end of the tension spring is held by the housing, and

the housing further includes:

a columnar member configured to hold the other end of the tension spring; and

a stopper member configured to prevent the other end from moving along an axial direction of the columnar member.

7. The electrical device according to claim 5 , wherein the housing further includes a tension spring housing member disposed so as to surround a periphery of the tension spring inside the housing.

8. The electrical device according to claim 5 , wherein the cover rail is formed at an edge of a through hole formed on the housing, and

the hook has a shape protruding from the cover body in a direction in which the terminal cover moves from the exposure position to the protection position.

9. The electrical device according to claim 1 , wherein a ridge extending along the sliding direction is provided on an outer surface of the cover rail.

10. The electrical device according to claim 1 , wherein the terminal cover further includes a cover plate formed integrally with the hook and extending along an outer surface of the cover rail, and

the cover plate has a longitudinal direction along the sliding direction.

11. The electrical device according to claim 1 , wherein the cover body includes a reinforcing member along a plane orthogonal to the sliding direction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 3, 2020
From: MURAKAMI, JUNICHI; YAMAGUCHI, JUNYA; TAGA, HIDEYUKI
To: MAKITA CORPORATION
Reel/Frame 051998/0784 →
Priority Claims (4)
JP JP2019-051292 · Mar 19, 2019 · national
JP JP2019-208166 · Nov 18, 2019 · national
JP JP2019-208168 · Nov 18, 2019 · national
JP JP2020-004567 · Jan 15, 2020 · national
Continuity (1)
Related Publication 20200303933A1 · Sep 24, 2020
Cited By (1)
US 12,573,707