JP3583576B2 - Holder for remote control of rechargeable power tools - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a remote control holder used to operate a rechargeable power tool that receives power from a battery pack containing a battery at a location away from an operator.
[0002]
[Prior art]
Conventionally, as a holding tool for remote control (hereinafter referred to as a holding tool), as disclosed in Japanese Utility Model Publication No. 7-39562, for example, a grip such as an electric drill is attached to the tip of a plurality of hollow shafts which are fitted and retracted. At the base end, a handle for supporting the hollow shaft and a shoulder pad are provided at the base end, and at the distal end of the hollow shaft, a push fitting capable of pushing a switch of the power tool is provided. Is equipped with a switch lever, and the two are connected by a wire, and the switch on the distal end can be operated by operating the switch lever on the proximal end side, and an electric drill or the like can be operated from a place away from hand. Have been.
[0003]
[Problems to be solved by the invention]
In the above holder, since the power tool is fixed to the distal end of the hollow shaft with the battery pack attached, the weight of the holder at the distal end side becomes large when the tool is mounted, making the holder difficult to handle, making it difficult for the operator. The burden of is large.
[0004]
Therefore, an object of the present invention is to provide a remote control holder that can reduce the weight on the distal end side, improve operability, and reduce the burden on the operator.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is an invention in which the same insertion portion as the insertion portion of the battery pack to the power tool and the same connection terminal as the connection terminal provided in the insertion portion of the battery pack are provided. And a connection body to which the power tool from which the battery pack is removed can be connected, and the power tool is provided on the connection body, and the switch of the power tool can be maintained in the ON state at the same time as the connection with the power tool. A switch restricting means, an insertion hole connected to the connecting body via a pipe, into which an insertion portion of the battery pack can be inserted, and an engagement portion, which can be engaged with a hook button provided on the battery pack. A handle that has the battery pack and is detachable,
A connecting means for electrically connecting the power tool connected to the connecting body to the battery pack mounted on the handle; and an electric connection between the battery pack and the power tool provided on the handle, the connection means being provided on the handle. Switch means capable of controlling the connection.
According to a second aspect of the present invention, in addition to the object of the first aspect, in order to easily configure the switch restricting means, an arm extending along the housing of the power tool is provided on the connecting body. The switch restricting means is used for screwing the arm and the housing, and at the time of screwing, the tip is a screw member for pushing a switch lever of the power tool.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a holding device for remote operation (hereinafter referred to as a holding device). One end of a long (here, 1250 mm) hollow pipe 2 is connected to an electric tool 3 such as a chainsaw 24. However, a handle 4 is provided at the other end. As shown in FIG. 2, the connecting body 3 clamps the tip of the pipe 2 with a symmetrical split type (the lower die is indicated by oblique lines for distinction from the chainsaw 24, the same applies hereinafter), and screws 5, 5 ··· formed by synthetic resin molded product, which is formed by an insertion portion 6 inserted from the rear of the chainsaw 24 and an arm 7 integral with the insertion portion 6 and protruding in a curved shape from the side thereof. . First, the insertion portion 6 is a hollow body having the same flat shaft shape as the insertion portion of the battery pack into the power tool, and incorporates terminal holders 9 having electrode terminal plates 8 on both sides. In. The electrode terminal plates 8, 8 are exposed to the outside through the through holes 6a formed in the housing of the insertion portion 6, so that the battery holder 25 in the chain saw 24 can be held in the same manner as in the case of the battery pack. Lead wires 10, 10 are connected to the respective electrode terminal plates 8, 8, and are wired to the handle 4 in the pipe 2. Further, the arm 7 has a shape along the auxiliary housing 26 of the chain saw 24, and a through hole 13 through which the bolt 12 passes through the washer 11 is formed at the tip of the arm 7.
[0007]
On the other hand, the handle 4 is also a synthetic resin molded product that holds the rear end of the pipe 2 with the same symmetric split mold as the connecting body 3 and is fixed by screws 5, 5,. As shown, a switch 14 to which the lead wires 10, 10 wired from the connecting body 3 through the pipe 2 are connected, a switch lever 16 for pushing the plunger 15 of the switch 14 to turn on the switch, and a compression in a normal state A lock-off button 18 is provided at a position where the pushing operation of the switch lever 16 is prevented by the spring 17 and the pushing operation of the switch lever 16 is enabled by the pushing. At the base end of the handle 4, an insertion hole 19 into which the battery pack 31 is inserted is formed. At the opening end of the insertion hole 19, hook buttons 32 provided on both sides of the battery pack 31 are provided. , 32 are provided with locking portions 20, 20, respectively, which can lock the hook portions 32a, 32a. The bottom of the insertion hole 19 is connected to the switch 14 via lead wires 21, 21, and holds the electrode terminal plates 33, 33 of the mounted battery pack 31 to hold the battery pack 31 and electrically connect the same. A battery holder 22 that enables connection is provided.
Reference numeral 23 shown in FIG. 1 denotes a sponge grip wound around the handle 4 of the pipe 2.
[0008]
When the insertion part 6 of the connecting body 3 is inserted into the rear end of the handle housing of the chainsaw 24 from which the battery pack 31 has been removed, the holding tool 1 configured as described above is similar to the battery pack as shown in FIGS. The battery terminal 25 sandwiches the electrode terminal plates 8, 8 of the insertion portion 6, and the insertion portion 6 is held and electrically connected. When the bolt 12 penetrating the arm 7 is screwed into a fixing nut 27 provided in the auxiliary housing 26, the chain saw 24 supports the handle housing by the insertion portion 6, and supports the auxiliary housing 26 by the arm 7. It is integrated with the body 3. In this connection state, the tip of the bolt 12 as the switch restricting means penetrates through the auxiliary housing 26 and pushes the switch lever 28 so that the switch 29 on the chain saw 24 side is always maintained in the ON state. Note that the chain saw 24 is also provided with the same lock-off button 30 as that described for the handle 4. However, it is necessary to release the lock by pushing the lock-off button 30 in the connected state when connecting.
On the other hand, in the handle 4, when the battery pack 31 is inserted into the insertion hole 19, the hook portions 32a, 32a of the side hook buttons 32, 32 are respectively locked by the locking portions 20, 20, and the electrode terminal plate at the upper end. The battery pack 31 is sandwiched between the battery holders 22, and the battery pack 31 is integrated with the handle 4 and is also electrically connected.
[0009]
As described above, in the holder 1, the chainsaw 24 is mounted on the distal end side and the battery pack 31 is mounted on the proximal end side separately, and the two are electrically connected to each other. To release the lock and turn on the switch lever 16, whereby the chainsaw 24 attached to the connecting body 3 at the tip can be driven and controlled at hand. Therefore, cutting work at a high place such as high branch cutting can be easily performed. In particular, since the battery pack 31 is mounted on the handle 4 at hand, the weight on the tip side is reduced, the burden on the operator is reduced, and the operability is improved.
Further, since the insertion portion 6 of the connecting body 3 has the same shape as the battery pack 31 and uses the same form of the electrode terminal plates 8 and 8, the connection of the tool and the electrical connection are simple only by insertion. And a stable connection state without rattling is obtained. Further, since the switch 29 on the chain saw 24 is maintained in the ON state together with the operation of connecting the chain saw 24 and the arm 7 by the bolt 12, the number of parts is minimized, and The tool connection operation is further simplified.
[0010]
In the above-described embodiment, the switch lever 28 is pushed and maintained by the connection between the connecting body 3 and the chainsaw 24 by the bolts 12 to rationalize the switch restricting means. The connection structure with the chainsaw 24 can be provided separately. Some specific examples will be described below, but the same reference numerals as those described above denote the same parts, and a description thereof will not be repeated.
Modification example 1
In the connector 3 shown in FIG. 4, a fixing nut 34 is provided inside the arm 7 here, and a switch lock bar 35 protrudes from the front wall 6 b of the insertion portion 6. When the insertion portion 6 is attached to the chainsaw 24 as shown in FIG. 7B, the switch lock bar 35 is inserted through the housing as it is, between the switch lever 28 and the switch 29, and pushes the plunger 29a. , And the switch 29 is maintained in the ON state. The mounting of the arm 7 and the auxiliary housing 26 is performed by screwing a thumbscrew 36 passing through the auxiliary housing 26 into a fixing nut 34. On the other hand, when the chainsaw 24 is removed from the connecting body 3, the switch lock bar 35 is also pulled out, so that the plunger 29a returns and the switch 29 is turned off.
As described above, according to the present modified example, the connection work between the chainsaw 24 and the connecting body 3 is different, but the switch 29 on the chainsaw 24 is automatically turned on by the switch lock bar 35 during connection and off when removed. The workability of the connecting work is further improved because the setting is made in a proper manner. Of course, when the chainsaw 24 is used alone, even if the battery pack 31 is mounted, the chainsaw 24 does not drive freely and can be used with confidence.
[0011]
Modification example 2
In the connector 3 shown in FIG. 5, the switch lock bar 35 is housed in the storage portion 37 inside the insertion portion 6 and is urged in the protruding direction by the compression spring 38 to be provided on the connector 3. The foremost position is regulated by the stopper 39 provided. In the vicinity of the switch lock bar 35 at the front end of the insertion portion 6, a substantially U-shaped regulating body 40 is pivotally mounted at the center thereof and is rotatably arranged. When the switch lock bar 35 is pushed into the storage portion 37, the right end 40a of the regulating body 40 abuts on a step 35a formed near the tip of the switch lock bar 35 when the switch lock bar 35 is pushed into the storage portion 37. While the protrusion 35 is restricted, the left end 40b of the restricting body 40 is in a posture protruding slightly forward from the front wall 6b of the insertion portion 6. Therefore, when the insertion portion 6 is inserted into the chainsaw 24 in this state, the partition wall 24a provided on the chainsaw 24 side and parallel to the front wall 6b of the insertion portion 6 abuts on the left end 40b of the restriction body 40 and the restriction body The right end 40 a is separated from the step 35 a of the switch lock bar 35 to rotate the right 40. Then, the switch lock bar 35 is protruded from the storage portion 37 by the compression spring 38 until it comes into contact with the stopper 39, and the plunger 29a of the switch 29 is pushed in as shown in FIG.
As described above, also in this modified example, the effect of automatically securing the procedure of ON by connection and OFF by removal can be maintained, not only does not impair workability, but also the switch lock bar 35 when the holder 1 is not used. Can be accommodated in the insertion portion 6, so that the protruding portion is eliminated and does not hinder handling, and the switch lock bar 35 can be prevented from being bent or bent.
[0012]
Modification 3
In the connector 3 shown in FIG. 6, a rack 42 is formed on the side surface of the switch lock bar 35 housed in the housing portion 37, and a pinion 43 meshing with the rack 42 is pivotally mounted on the insertion portion 6 so as to be rotatable. By supporting, a part of the pinion 43 is exposed from the insertion portion 6. A second rack 44 is formed on the chain saw 24 side along the approach path of the pinion 43 at the time of insertion as shown in FIG. Therefore, according to this configuration, as the insertion portion 6 is inserted into the chainsaw 24, the pinion 43 meshing with the second rack 44 rotates counterclockwise in the drawing, and gradually moves the switch lock bar 35 forward through the rack 42. The end of the switch lock bar 35 pushes the plunger 29 a of the switch 29 at the same time as the feeding and the insertion of the insertion section 6 are completed. On the other hand, when the chainsaw 24 is removed, the switch lock bar 35 is gradually pulled into the storage portion 37 by the right rotation of the pinion 43 along the second rack 44, and the storage portion 37 is completely removed upon completion of the removal. To be stored.
Thus, also in this modified example, the effect of automatically securing the procedure of ON by connection and OFF by removal can be maintained, and the switch lock bar is housed in the insertion portion 6 when the holder is not used. Therefore, the same effect as that of Modification 2 can be expected, which does not hinder the handling and prevents the switch lock bar 35 from being damaged.
[0013]
Modification 4
In the connector 3 shown in FIG. 7, the switch lock bar 45 is housed on the chain saw 24 side. That is, a plate-like switch lock bar 45 having a bent projection 46 which can push the plunger 29a of the switch 29 is provided by being urged by the compression spring 47 in a direction away from the plunger 29a (rightward in the drawing). On the front wall 6b of the insertion portion 6, a projection 48 capable of pushing the switch lock bar 45 by insertion into the chainsaw 24 is projected, and the switch lock bar 45 pressed by the projection 48 in the inserted state. The plunger 29a slides leftward and the plunger 29a pushes the plunger 29a. Thus, also in this modified example, the effect of automatically securing the procedure of ON by coupling and the procedure of OFF by removal, and the effect of preventing the switch lock bar 45 from interfering with handling or being damaged can be prevented. Is obtained.
[0014]
On the other hand, as a form of connection between the connecting body and the tool side, a structure in which the same hook button as that of the battery pack is provided on the connecting body side and locked by the locking section on the tool side together with the insertion of the insertion section can be adopted. That is, as shown in FIG. 8, on both sides of the insertion portion 6, similarly to the battery pack, hook portions 50, 50 are provided at the distal end, and hook buttons 49, 49 urged outward by leaf springs 51, 51, respectively. The hook portions 50, 50 of the hook buttons 49, 49 are locked to the locking portions 52, 52 on the chain saw 24 side by inserting the insertion portion 6 into the chainsaw 24 as shown in FIG. According to this structure, the battery holder 25 clamps the insertion portion 6 and locks the hook buttons 49, 49, so that both can be stably connected with the same configuration as the battery pack. If only the switch restricting means by 4 is provided, other connecting means such as an arm, a bolt, a thumbscrew, etc. become unnecessary.
In addition, the present invention is not limited to the above-described embodiment. For example, various design changes such as elimination of the lock-off button are possible. Other rechargeable power tools such as reciprocating saws, hedge trimmers, pruning mushrooms (for pruning), and glass shears can enjoy the same effect when connected to the holder.
[0015]
【The invention's effect】
According to the first aspect of the present invention, since the battery pack is mounted on the handle at hand, the weight on the power tool side is reduced, the operability is improved, and the burden on the operator is reduced.
In addition, since the mounting form of the connecting body and the power tool is the same as the mounting form of the battery pack and the power tool, the connection of the connecting body to the power tool and the electrical connection can be easily performed with high reliability. it can. In particular, the adoption of the switch restricting means provides a rational configuration in which the switch is maintained in the ON state together with the operation of connecting the power tool to the holder.
According to the second aspect of the present invention, in addition to the effect of the first aspect , the switch regulating means is also used as a screw member used for coupling the coupling body and the power tool, so that the number of parts is small, and It is a reasonable configuration that simplifies the procedure.
[Brief description of the drawings]
FIG. 1 is an explanatory view of a holder for remote operation.
FIG. 2 is an explanatory diagram of a connected body.
FIG. 3 is an explanatory view of a handle.
FIG. 4A is an explanatory diagram of a first modification of the switch restricting means.
(B) It is explanatory drawing of the state which connected the linked body to the chainsaw.
FIG. 5A is an explanatory diagram of a second modification of the switch restricting means.
(B) It is explanatory drawing of the state which connected the linked body to the chainsaw.
FIG. 6A is an explanatory diagram of a third modification of the switch restricting means.
(B) It is explanatory drawing of the state which connected the linked body to the chainsaw.
FIG. 7 is an explanatory diagram of a fourth modification of the switch restricting means.
FIG. 8 is an explanatory diagram of a modified example of a connected body.
FIG. 9 is an explanatory view of a modified example of the connector.
[Explanation of symbols]
1. Holder for remote operation, 2. Pipe, 3. Connected body, 4. Handle, 6. Insert section, 7. Arm, 8, 33 Electrode terminal plate, 12. Bolt , 14, 29 switch, 16, 28 switch lever, 22, 25 battery holder, 24 chainsaw, 31 battery pack, 35, 45 switch lock bar.

Claims (2)

A remote control holder used for a rechargeable power tool to which a battery pack containing a battery is removably inserted and mounted,
An electric tool from which the battery pack is removed has the same insertion part as the insertion part of the battery pack to the power tool, and the same connection terminal as the connection terminal provided in the insertion part of the battery pack. A connectable body,
Switch restricting means provided on the coupling body and capable of maintaining a switch of the power tool in an ON state simultaneously with connection with the power tool;
The battery is connected to the connector via a pipe, and has an insertion hole into which an insertion portion of the battery pack can be inserted, and an engagement portion to which a hook button provided on the battery pack can be engaged. A handle with a removable pack,
Connecting means for electrically connecting the power tool connected to the connecting body to the battery pack mounted on the handle;
A remote-control holding tool for a rechargeable power tool, comprising: switch means provided on the handle and capable of controlling electrical connection between the battery pack and the power tool by the connection means. An arm extending along the housing of the power tool is protrudingly provided on the connecting body, and the switch restricting means is used for screwing the arm and the housing together. The holding tool for remote control of a rechargeable power tool according to claim 1, wherein the holding tool is a screw member for pushing a switch lever of the tool.

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