JP6058760B2 - Tool battery - Google Patents

Description

  The present invention is a battery connected by sliding in a certain direction with respect to the electric tool body, comprising a slide lock hook, the lock claw of the hook can project from the claw opening of the battery housing, and The present invention relates to a tool battery having a configuration in which an unlocking operation portion of the hook is exposed at a position of an operation opening of the battery housing.

  A tool battery related to this is described in Patent Document 1. As shown in FIGS. 10 (A) and 10 (B), the tool battery 100 described in Patent Document 1 has a tip (right end) of the slide rail 102 of the tool battery 100 with respect to the battery connecting portion 112 of the electric tool main body 110. ) Are fitted to the power tool main body 110 by sliding in the right direction in the figure. Furthermore, at the left end position of the tool battery 100 (battery housing 101), as shown in FIG. 10B, there is a hook 105 that can be slide-locked in a state where the tool battery 100 and the electric tool body 110 are connected. Is provided. The hook 105 includes a lock claw 105r configured to protrude upward from the claw opening 101h on the upper surface of the battery housing 101, and an unlock operation portion 105x exposed at a position of the opening 101y formed on the left side surface of the battery housing 101. The coil spring 106 always receives a pushing force. Accordingly, as shown in FIG. 10B, when the tool battery 100 slides to the right end position with respect to the power tool main body 110, the lock claw 105r of the hook 105 is opened by the force of the coil spring 106. It protrudes upward from 101h and engages with the lock wall surface 113 of the electric power tool body 110. Thereby, the slide lock of the tool battery 100 with respect to the electric tool main body 110 is performed. Further, the lock claw 105r is housed in the claw opening 101h by pushing down the unlocking operation portion 105x of the hook 105 against the force of the coil spring 106 from the opening 101y of the battery housing 101, and the slide lock of the tool battery 100 is locked. Is released.

JP 2001-229895 A

  As described above, the battery housing 101 of the tool battery 100 has a claw opening 101h for allowing the lock claw 105r of the hook 105 to protrude upward, and an opening 101y that allows the lock release operation portion 105x of the hook 105 to be operated. And are provided. For this reason, for example, when the tool battery 100 gets wet with rain or the like, water may enter the inside from the claw opening 101 h or the like of the battery housing 101. In the battery housing 101, the storage portion of the hook 105 and the storage portion of the cell (not shown) are not particularly partitioned, so that water that has entered the battery housing 101 flows to the position of the cell (not shown). is there. When water reaches the cell storage part, a short circuit or the like occurs between the cells, causing a failure.

  The present invention has been made to solve the above problems, and the problem to be solved by the present invention is to prevent water that has entered from the nail openings of the battery housing from reaching the cell position. This is to prevent the failure of the tool battery.

The above-described problems are solved by the inventions of the claims. According to a first aspect of the present invention, there is provided a power tool main body that extends in the front-rear direction on an upper open housing body that houses a plurality of cells, a lid that closes an upper opening of the housing main body, and an upper surface of the lid. A slide rail that is used for connection to the hook, a hook that protrudes upward from the claw opening of the lid, and that has a lock claw that slide-locks the electric power tool body with respect to the slide rail, and holds the hook in the upper limit position A battery for a tool having a spring and a hook storage portion that is formed in a substantially equal side shape in accordance with the side shape of the hook, and stores the hook inside the lid portion and the housing main body portion , before Symbol hook-receiving portion, the upper open type vessel shape, the formed so as Ooeru from above at least a portion of the plurality of cells, before Symbol hook-receiving portion, the horizontal And a bottom plate portion comprising a curved surface curved downward from the horizontal upper surface, and a vertical wall surface provided on the lower side of the curved surface, left and right of the horizontal upper surface of the bottom plate portion, and left and right of the curved surface A side plate portion provided and a vertical plate portion that connects the left and right side plate portions at the front end position of the horizontal upper surface of the bottom plate portion are provided.

According to the present invention, the hook housing portion on the housing main body side has an upper open container shape and is formed so as to cover at least a part of the plurality of cells from above. In addition, the hook storage portion includes a horizontal upper surface, a curved surface curved downward from the horizontal upper surface, a vertical wall surface provided below the curved surface, and a horizontal upper surface of the bottom plate portion. Side plates provided on the left and right sides and the left and right sides of the curved surface, and vertical plate portions that connect the left and right side plates at the front end position of the bottom plate. Therefore, the water that has entered the battery housing from the claw opening or the like is received by the hook housing portion on the housing main body side, and is guided by the vertical plate portion and the left and right side plate portions of the hook housing portion so Is guided down the curved portion. This makes it difficult for water that has entered the battery housing from the claw opening or the like to reach the cell storage portion , and can prevent the tool battery from being damaged due to water adhering to the cell.

According to the invention of claim 2 , a positive electrode and a negative electrode are arranged on the front side of the hook housing portion inside the lid portion and the housing main body portion.

According to the invention of claim 3, the hook includes an upper surface horizontal portion, a curved portion, and a lower vertical wall portion, and a lock claw is formed at a front end position of the upper surface horizontal portion .

According to the invention of claim 4, an upper open type housing main body for storing a plurality of cells;
A lid that closes the upper opening of the housing body; a slide rail that extends in the front-rear direction on the upper surface of the lid; and is used to connect to the power tool body; and projects upward from the claw opening of the lid, A hook provided with a lock claw for slidingly locking the electric power tool main body with respect to the slide rail, a spring for holding the hook at an upper limit position, and a side surface shape substantially equal to the side surface shape of the hook, and the lid A battery for a tool having a hook storage portion for storing the hook inside the housing portion and the housing main body portion, wherein the hook storage portion is an open-topped container shape and includes at least a part of the plurality of cells. is formed so as Ooeru from above, in the hook-receiving portion constitutes a front side of the hook-receiving portion, and a horizontally arranged plate-shaped front portion, said hook yield Constitute the rear side parts, and curved downward and a rear portion which is formed in a vertical wall shape, and left and right horizontal upper surface of said front portion, at the rear portion is curved downward relative to the front portion The side plate portions provided on the left and right sides of the front portion and the vertical plate portion connecting the left and right side plate portions at the front end position of the horizontal upper surface of the front portion are provided.

According to the invention of claim 5, the full-click accommodating portion, a second flow path extending downward is formed by the first flow path is formed, the rear portion extending rearward by the front portion It is characterized by that.

  According to the present invention, it is possible to prevent failure of the tool battery due to water adhering to the cell.

It is a top view of the battery for tools concerning Embodiment 1 of the present invention. It is a longitudinal cross-sectional view (II-II arrow sectional drawing of FIG. 1) of the said battery for tools. It is a disassembled perspective view showing the battery housing of the said battery for tools. It is a rear view showing the lid and hook of the battery housing. It is the disassembled perspective view which looked at the lid | cover and hook of the said battery housing from back upper direction. It is the disassembled perspective view which looked at the lid and hook of the battery housing from the lower part. It is a perspective view showing a mode that a power tool main part and a battery for tools are connected. FIG. 8 is a vertical cross-sectional view (a cross-sectional view taken along the line VIII-VIII in FIG. 7) illustrating a state in which the power tool main body and the tool battery are coupled. It is a disassembled perspective view of the battery housing of the battery for tools which concerns on the example of a change. It is a side view (A figure) showing the battery connection part of the conventional electric tool main body, and a side view (B figure) showing the connection state of an electric tool main body and the battery for tools.

[Embodiment 1]
Hereinafter, the tool battery according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 9. Note that the front, rear, left and right and top and bottom described in the figure correspond to the front, back, left and right and top and bottom of the tool battery.

<About the outline of the tool battery 30>
As shown in FIGS. 2 and 3, the tool battery 30 includes an upper open type housing main body 32 that houses a plurality of storage batteries S (hereinafter referred to as cells S), and an upper opening of the housing main body 32. And a lid 34 for closing. The housing main body portion 32 and the lid portion 34 are formed in a substantially rectangular shape, and the lid portion 34 can be screwed to the housing main body portion 32 at eight locations. That is, the housing body 32 and the lid 34 correspond to the battery housing of the present invention. As shown in FIG. 3 and the like, the upper surface of the lid portion 34 of the tool battery 30 is used to connect the battery connecting portion 26 (see FIGS. 7 and 8) of the electric power tool body 20 to the left and right sides thereof. The slide rail 36 is formed so as to extend in the front-rear direction. The left and right slide rails 36 are composed of a rail main body portion 36m and a lateral ridge portion 36t that protrudes from the upper side surface of the rail main body portion 36m by a fixed dimension outward in the width direction. A stopper portion 36 u is formed at the rear end position of the left and right slide rails 36.

  As shown in FIGS. 1 and 3, a plate-like terminal (not shown) of the electric power tool main body 20 can be inserted from the front side between the left and right slide rails 36 at the upper rear portion of the lid portion 34. A pair of left and right guide slits 37 are formed in parallel with the slide rail 36. And as shown in FIG. 1, the positive electrode 37p and the negative electrode 37n of the tool battery 30 are installed inside the left and right guide slits 37 (inside the lid portion 34). A short slit 38 is formed next to the right guide slit 37 so that a signal terminal of the electric power tool main body 20 can be inserted from the front, and a signal electrode of the tool battery 30 is formed inside the short slit 38. 38s is installed. Further, as shown in FIG. 3, the lid 34 has a substantially U-shaped nail that is formed so that a lock claw 52 of a slide lock hook 50 can protrude behind the left and right guide slits 37, as shown in FIG. 3. An opening 39 is formed. As will be described later, the hook 50 is attached to the rear end portion of the housing main body 32 and the lid portion 34 (battery housing) in a state in which the lock claw 52 receives a spring force that protrudes upward from the claw opening 39. It is stored.

  In order to connect the tool battery 30 to the electric tool main body 20, as shown in FIGS. 7 and 8, square grooves 26m (see FIG. 8) formed on the left and right inner sides of the battery connecting portion 26 of the electric tool main body 20. The ends of the lateral protrusions 36t formed on the left and right sides of the tool battery 30 are fitted to the ends. Next, the tool battery 30 is slid forward (leftward in FIG. 7) with respect to the electric tool main body 20 in a state where the fitting state is maintained. As a result, the power tool body 20 and the tool battery 30 are mechanically coupled, and the left and right terminals (not shown) of the power tool body 20 are connected to the positive electrode 37p, the negative electrode 37n, and the like of the tool battery 30. Each is electrically connected. Then, when the tool battery 30 is slid to the limit position with respect to the battery connecting portion 26 of the electric tool main body 20, the lock claw 52 of the hook 50 is engaged with the lock wall surface (not shown) of the electric tool main body 20 by a spring force. Match. Thereby, the slide of the battery 30 for tools with respect to the electric tool main body 20 is locked. Further, as will be described later, when the hook 50 is pushed down against the spring force, the lock claw 52 is accommodated in the claw opening 39 and the slide lock of the tool battery 30 is released.

<About hook 50 and hook storage room>
As described above, the hook 50 is a member that performs the slide lock of the tool battery 30 with respect to the electric power tool body 20, and as shown in FIG. 3 and the like, the upper surface horizontal portion 50u, the curved portion 50w, and the lower vertical wall portion 50d. It consists of and. The lock claw 52 is formed so as to protrude upward at the tip (front end) position of the upper surface horizontal portion 50 u of the hook 50. The lock claw 52 is formed in a substantially U-shaped plane from left and right triangular claw pieces 52k and a connecting vertical plate 52c that connects both claw pieces 52k. Further, as shown in FIG. 3, a guide hole 53 is formed in the rear center of the lock claw 52 in the upper horizontal portion 50 u of the hook 50. Further, at the boundary position between the curved portion 50w of the hook 50 and the lower vertical wall portion 50d, a lock release operation portion 54 for pushing down the hook 50 when releasing the slide lock makes the finger U-shaped from below. It is formed in a surrounding shape. Further, as shown in FIGS. 4 and 5, a protrusion 50t into which one end (upper end) of the coil spring 56 (see FIG. 2) is fitted protrudes downward at the lower end of the lower vertical wall portion 50d of the hook 50. Is formed. The hook 50 is guided along the guide vertical pin 34z by passing a guide vertical pin 34z (see FIGS. 2 and 6) formed on the rear ceiling surface of the lid portion 34 through the guide hole 53 of the upper horizontal portion 50u. It can be moved up and down. Further, the hook 50 is stored in the hook storage chamber forming member 60 in a state in which the hook 50 can move up and down.

As shown in FIG. 3, the hook storage chamber forming member 60 is an open top type container formed in a substantially equal side shape according to the side shape of the hook 50, and includes a bottom plate portion 61 and left and right side plate portions 62, 63. And an upper vertical plate portion 64 and a lower plate portion 65. The distance between the left and right side plate portions 62 and 63 of the hook storage chamber forming member 60 is set to a value substantially equal to the width dimension of the hook 50 as shown in FIG. That is, the hook 50 can move up and down while being guided by the guide vertical pins 34z of the lid portion 34 and the left and right side plate portions 62 and 63 of the hook storage chamber forming member 60. Further, a protrusion 65t into which the other end (lower end) of the coil spring 56 is fitted is formed at the lower end position (lower plate portion 65) of the hook storage chamber forming member 60 at a position facing the protrusion 50t of the hook 50. That is, the hook 50 always receives an upward pressing force by the spring force of the coil spring 56 (see FIG. 2) mounted between the protrusion 50t of the hook 50 and the protrusion 65t of the hook storage chamber forming member 60. The

  As shown in FIG. 6, the upper vertical plate portion 64 and the left and right side plate portions 62 and 63 of the hook storage chamber forming member 60 have the guide vertical pin 34 z on the rear ceiling surface of the lid portion 34 from the front side and the left and right sides. The seal groove 34m is formed so as to be fitted from below. Further, the upper vertical plate portion 64 and the left and right side plate portions 62 and 63 are fitted to the bottom plate portion 61 of the hook storage chamber forming member 60 in a state where the seal groove portion 34m on the rear ceiling surface of the lid portion 34 is fitted. A screw hole 67 is formed at a position of the portion 34 corresponding to the guide vertical pin 34z. Note that a female screw hole (not shown) having the same diameter as the screw hole 67 is formed in the guide vertical pin 34z of the lid portion 34 in the axial direction. With the above configuration, the hook storage chamber forming member 60 can be screwed to the guide vertical pin 34z on the rear ceiling surface of the lid portion 34. That is, the wall portion constituting the seal groove 34m corresponds to the seal portion of the present invention.

  That is, when the hook 50 and the hook storage chamber forming member 60 are attached to the rear ceiling surface of the lid portion 34, first, the hook 50 is stored in the hook storage chamber forming member 60, and the protrusion 50t of the hook 50 and the hook storage are stored. A coil spring 56 is mounted between the projection 65t of the chamber forming member 60. Next, the guide vertical pin 34 z of the lid portion 34 is inserted into the guide hole 53 of the hook 50, and the lock claw 52 of the hook 50 is protruded from the claw opening 39 of the lid portion 34. In this state, as shown in FIG. 4, the unlocking operation portion 54 of the hook 50 is fitted into a notch-shaped operation opening 34 h formed on the rear end surface of the lid portion 34.

  Next, the upper vertical plate portion 64 and the left and right side plate portions 62 and 63 of the hook storage chamber forming member 60 are fitted into the seal groove portion 34m of the rear ceiling surface of the lid portion 34 to form the hook storage chamber as shown in FIG. The member 60 is fixed to the guide vertical pin 34z of the lid portion 34 by using the screw hole 67 and the female screw hole (see FIG. 2). Thereby, the hook storage chamber forming member 60 is fixed to the rear ceiling surface of the lid portion 34. That is, in this state, as shown in FIG. 4, the hook 50 receives the spring force of the coil spring 56 (not shown in FIG. 4) and the lock claw 52 protrudes from the claw opening 39 of the lid portion 34, and the unlocking operation is performed. The portion 54 is held at an upper limit position (lock position) where the portion 54 is fitted with the operation opening 34 h of the lid portion 34. In addition, by pushing down the unlocking operation portion 54 of the hook 50 against the spring force of the coil spring 56, the hook 50 can be moved downward to store the lock claw 52 inside the claw opening 39. That is, the hook 50 can be held in the unlocked position.

  As shown in FIG. 4, the lower half of the hook storage chamber forming member 60 projects downward from the lid portion 34 in a state where the hook storage chamber forming member 60 is fixed to the rear ceiling surface of the lid portion 34. The lower half of the hook storage chamber forming member 60 protruding from the lid portion 34 is stored in the rear portion of the housing main body 32 as shown in FIG. Further, as shown in FIGS. 4 and 5, a flange portion 68 having a constant width is formed at the opening edge of the hook storage chamber forming member 60 protruding from the lid portion 34. As shown in FIG. 3, a storage chamber in which the lower half of the hook storage chamber forming member 60 is stored is a left and right partition plates 32 e and 32 f, a front partition plate 32 x, and a housing body portion. 32 and a rear vertical wall portion 32w. And the boundary position of the rear vertical wall part 32w of the housing main-body part 32 and the right and left partition plates 32e and 32f, and the rear vertical wall part 32w of the housing main-body part 32 and the bottom part 32b of the said storage chamber (refer FIG. 2). A slit-like groove 32m into which the flange portion 68 at the opening edge of the hook storage chamber forming member 60 is fitted is formed at the boundary position. Thereby, in the process of storing the lower half of the hook storage chamber forming member 60 of the lid portion 34 in the storage chamber of the housing main body 32, the flange portion 68 of the hook storage chamber forming member 60 is fitted into the slit-shaped groove 32m. Accordingly, the opening of the hook housing chamber forming member 60 is closed by the rear vertical wall portion 32w of the housing main body portion 32. That is, the inside of the hook storage chamber forming member 60 in which the hook 50 is stored and the space in which the cell S of the housing main body 32 is stored are completely partitioned by the hook storage chamber forming member 60 and the front partition plate 32x. become.

  At the upper end of the rear vertical wall portion 32w of the housing main body 32, as shown in FIG. 3 and the like, a notch-shaped operation opening 32h is formed at a position continuous with the operation opening 34h of the lid portion 34. Yes. The lock release operation portion 54 of the hook 50 can be moved up and down within the range of the opening formed by the operation opening 34 h of the lid portion 34 and the operation opening 32 h of the housing main body portion 32. Further, as shown in FIG. 3, a communication hole 32 y is formed at the lower end position of the rear vertical wall portion 32 w of the housing main body portion 32 to allow the inside and the outside of the hook storage chamber forming member 60 to communicate with each other. Thereby, the water that has entered the hook storage chamber forming member 60 can be discharged to the outside. That is, the space formed by the hook housing chamber forming member 60, the inner wall surface of the lid portion 34, and the rear vertical wall portion 32w of the housing main body 32 corresponds to the hook housing chamber of the present invention. The communication hole 32y corresponds to a hole for discharging water accumulated in the hook storage chamber of the present invention.

<About electrode storage room>
As shown in FIGS. 3 and 6, an electrode storage chamber forming member 40 for storing the positive electrode 37p, the negative electrode 37n, and the signal electrode 38s of the tool battery 30 is formed on the ceiling surface of the lid portion 34 as a hook storage chamber. It is configured to be attachable to the front side of the member 60. As shown in FIG. 3, the electrode storage chamber forming member 40 is formed in a rectangular container shape having an open top and front, and includes a bottom plate portion 42, left and right side plate portions 43 and 44, and a rear vertical plate portion 46. I have. A positive electrode 37p is disposed on the right side of the electrode storage chamber forming member 40, a signal electrode 38s is disposed on the left side thereof, and a negative electrode 37n is disposed on the left side of the electrode storage chamber forming member 40. In addition, left and right positioning pins 34p and 34p (see FIG. 6) protruding from the ceiling surface of the lid 34 are passed through the rear portion of the bottom plate portion 42 at positions near the positive electrode 37p and the negative electrode 37n. Guide hole portions 48, 48 are provided. Further, a connecting pin 47 having a female screw hole is formed between the left and right guide hole portions 48 and 48. Further, a protrusion 45 lower than the electrodes 37p, 37n, and 38s is formed in the open portion in front of the electrode storage chamber forming member 40 so as to extend in the left-right direction.

  As shown in FIG. 6, a groove portion 34 e is formed at a predetermined position on the ceiling surface of the lid portion 34 so that the protrusion 45 of the electrode storage chamber forming member 40 can be fitted. A screw hole 34f (see FIGS. 3 and 6) is formed at a position corresponding to the screw hole. Accordingly, the positioning pins 34p, 34p on the ceiling surface of the lid portion 34 are passed through the guide holes 48, 48 of the electrode storage chamber forming member 40, and the protrusion 45 of the electrode storage chamber forming member 40 is inserted into the ceiling surface of the lid portion 34. As shown in FIG. 2, the electrode housing chamber forming member 40 is fixed to the ceiling surface of the lid portion 34 with the screw B2 using the connecting pin 47, the female screw hole, and the screw hole 34f, as shown in FIG. Can be fixed. That is, the space formed by the ceiling surface of the lid 34 and the electrode storage chamber forming member 40 corresponds to the electrode storage chamber of the present invention.

<Advantages of Tool Battery 30 According to this Embodiment>
According to the tool battery 30 according to the present embodiment, the lock position where the lock claw 52 of the hook 50 protrudes from the claw opening 39 and the lock claw 52 are located in the housing main body 32 and the lid 34 (battery housing). A hook storage chamber forming member 60 (hook storage chamber) for storing the hook 50 is provided so that the hook 50 can move between the lock release position stored inside the claw opening 39. For this reason, for example, water that has entered through the claw opening 39 and the operation openings 34h and 32h is accumulated in the hook storage chamber forming member 60 (in the hook storage chamber). Furthermore, since the hook storage chamber and the storage portion of the cell S in the housing main body 32 are partitioned by the hook storage chamber forming member 60 or the like, the water that has entered the hook storage chamber reaches the storage portion of the cell S. There is nothing. For this reason, failure of the battery 30 for tools by water adhering to the cell S can be prevented.

  In addition, since a hole (communication hole 32y) for discharging water that has entered the hook storage chamber is formed in the lower portion of the hook storage chamber, water that has entered the hook storage chamber can be quickly discharged. The hook storage chamber is formed in a hollow closed cross section by fitting a hook storage chamber forming member 60 which is a separate part from the battery housing (the lid portion 34 and the housing main body portion 32) to the inner wall surface of the battery housing. Therefore, the hook storage chamber can be easily formed as compared with the case where the hook housing chamber is formed integrally with the battery housing. Further, since the electrode storage chamber forming member 40 for storing the electrodes 37p, 37n, 38s to which the terminal of the electric power tool body 20 is connected is provided on the ceiling surface (in the battery housing) of the lid portion 34, for example, the lid The water that has entered from the guide slit 37 of the portion 34 is accumulated in the electrode storage chamber forming member 40 (electrode storage chamber), and the water does not reach the storage portion of the cell S.

<Example of change>
Here, the present invention is not limited to the above-described embodiment, and can be modified without departing from the gist of the present invention. For example, in the present embodiment, an example in which the hook storage chamber forming member 60 and the electrode storage chamber forming member 40 are manufactured independently has been shown. However, as shown in FIG. It is also possible to form a communication passage 49 in which water flows through the forming member 60 at the rear end position of the electrode storage chamber forming member 40. As a result, the water that has entered the electrode storage chamber forming member 40 can be discharged from the communication hole 32y together with the water that has entered the hook storage chamber forming member 60. In addition, water is introduced into the storage portion of the cell S by providing packing or the like at the connection portion between the hook storage chamber forming member 60 and the lid portion 34, the connection portion between the electrode storage chamber forming member 40 and the lid portion 34, or the like. May be prevented.

20 .... Electric tool main body 30 ... Tool battery 32 ... Housing main body 32y ... Communication hole (water discharge hole)
32h: Operation opening 34h ... Operation opening 37p ... Positive electrode 37n ... Negative electrode 39 ... Nail opening 40 ... Electrode storage chamber forming member 49 ... Passage 50 ··· Hook 52 ··· Lock claw 54 ··· Unlock operation portion 60 ··· Hook storage chamber forming member S ··· Cell

Claims (5)

An upper open housing body for storing a plurality of cells;
A lid that closes the upper opening of the housing body;
A slide rail that extends in the front-rear direction on the upper surface of the lid, and is used for connection with the power tool body;
A hook provided with a lock claw that protrudes upward from the claw opening of the lid and performs a slide lock of the electric power tool body with respect to the slide rail;
A spring for holding the hook in the upper limit position;
A hook storage portion that is formed in a substantially equal side shape to match the side shape of the hook, and stores the hook inside the lid portion and the housing body portion;
A battery for a tool having
The hook storage part is formed in an upper open type container shape so as to cover at least a part of the plurality of cells from above.
In the hook storage part,
A bottom plate comprising a horizontal upper surface, a curved surface that curves downward from the horizontal upper surface, and a vertical wall surface provided below the curved surface;
Side plate portions provided on the left and right of the horizontal upper surface of the bottom plate portion and on the left and right of the curved surface;
A vertical plate connecting the left and right side plates at the front end position of the horizontal upper surface of the bottom plate, and
A battery for a tool, characterized in that is provided. The tool battery according to claim 1,
A battery for a tool, wherein a positive electrode and a negative electrode are disposed on the front side of the hook housing portion inside the lid portion and the housing main body portion. A battery for a tool according to any one of claims 1 and 2,
The tool battery according to claim 1, wherein the hook includes an upper surface horizontal portion, a curved portion, and a lower vertical wall portion, and a lock claw is formed at a front end position of the upper surface horizontal portion. An upper open housing body for storing a plurality of cells;
A lid that closes the upper opening of the housing body;
A slide rail that extends in the front-rear direction on the upper surface of the lid, and is used for connection with the power tool body;
A hook provided with a lock claw that protrudes upward from the claw opening of the lid and performs a slide lock of the electric power tool body with respect to the slide rail;
A spring for holding the hook in the upper limit position;
A hook storage portion that is formed in a substantially equal side shape to match the side shape of the hook, and stores the hook inside the lid portion and the housing body portion;
A battery for a tool having
The hook storage part is formed in an upper open type container shape so as to cover at least a part of the plurality of cells from above.
The hook storage portion constitutes a front side of the hook storage portion, and forms a horizontally disposed plate-like front portion and a rear side of the hook storage portion, and is curved downward with respect to the front portion. A rear side portion formed in a vertical wall shape, left and right sides of the horizontal upper surface of the front side portion, side plate portions provided on the left and right sides of a portion curved downward in the rear side portion, and the front side portion A tool battery comprising a vertical plate portion that connects the left and right side plate portions at a front end position of a horizontal upper surface . The battery for a tool according to claim 4,
A battery for a tool, wherein a first flow path extending backward is formed by the front side portion and a second flow path extending downward by the rear side portion is formed in the hook storage portion.

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