JP2021041420A - Fastening tool - Google Patents

Abstract

To provide a technique that contributes to the high output of a battery-powered fastening tool.SOLUTION: A fastening tool 101 comprises an anvil 371, a pin gripping portion 373, a motor 4, a drive mechanism 3, a body housing 11, a handle 151, and a plurality of battery installing portions 211. The drive mechanism 3 is configured to move the pin gripping portion 373 in a fore-and-aft direction along a drive shaft with respect to the anvil 371, by the power of the motor 4. The body housing 11 holds the anvil 371, and stores at least a part of the drive mechanism 3 and the motor 4. The long handle 151 gripped by a user is connected to the body housing 11. Each of the plurality of battery installing portions 211 is configured to attach/detach a battery 91 for supplying power to the motor 4.SELECTED DRAWING: Figure 5

Description

The present invention relates to a fastening tool for fastening a work material via a fastener.

Fastening tools for fastening a plurality of work materials via a fastener having a pin and a tubular portion (for example, a multi-piece swage type fastener or a blind rivet) are known. In such a fastening tool, the pin gripping portion that grips the pin of the fastener is moved with respect to the anvil that can be engaged with the tubular portion of the fastener, so that the pin is strongly pulled to deform the fastener and the work material is fastened. It is configured to do. For example, in the fastening tool disclosed in Patent Document 1, a drive mechanism driven by the power of a motor moves the pin grip portion with respect to the anvil. The motor is powered by a rechargeable battery mounted in the battery mount.

JP-A-2018-103257

There are various types of fasteners that can be used with fastening tools, with different pin diameters and the like. Therefore, for example, in order to cope with a fastener having a larger pin diameter, a larger tensile force is required, and it is desired to increase the output of the fastening tool.

In view of such a situation, an object of the present invention is to provide a technique that contributes to increasing the output of a fastening tool using a battery as a power source.

According to one aspect of the present invention, there is provided a fastening tool configured to fasten a work material via a fastener provided with a pin and a tubular portion. The fastening tool includes an anvil, a pin grip, a motor, a drive mechanism, a housing, a handle, and a plurality of battery mounts. The anvil extends along the drive shaft. The drive shaft defines the front-rear direction of the fastening tool. The anvil has a front end that is configured to be in contact with the tubular portion of the fastener. The pin gripping portion is configured to be able to grip the fastener pin. The pin grip portion is held so as to be movable along the drive shaft with respect to the anvil. The drive mechanism is configured to move the pin grip portion in the front-rear direction with respect to the anvil by the power of the motor. The housing holds the anvil. The housing houses at least a portion of the drive mechanism and the motor. The handle is connected to the housing. The handle is formed in an elongated shape and is configured to be gripped by the user. Each of the plurality of battery mounting portions is configured so that a battery for supplying electric power to the motor can be attached and detached.

According to this aspect, it is possible to mount a plurality of batteries on a plurality of battery mounting portions, and a pin grip portion pulls a pin to deform a fastener, and a high output is realized in a fastening tool for fastening a work material. can do.

In one aspect of the invention, the handle may project from the housing in a direction intersecting the drive shaft. When the direction orthogonal to the drive axis and corresponding to the extending direction of the handle is defined as the vertical direction of the fastening tool, and the direction in which the handle protrudes from the housing is defined as the downward direction in the vertical direction, a plurality of cases are specified. The battery mounting portion may be arranged below the handle. Further, when the directions orthogonal to the front-rear direction and the vertical direction are defined as the left-right direction of the fastening tool, each of the plurality of battery mounting portions may be configured so that the battery can be attached and detached in the left-right direction. In this case, the user can easily attach / detach the battery even while holding the handle.

Further, in this embodiment, it is preferable that the plurality of battery mounting portions are provided side by side in the front-rear direction, and the battery mounting directions are the same for each of the plurality of battery mounting portions. In other words, the battery is preferably mounted in the same direction on any of the plurality of battery mounting portions from the left side to the right side or from the right side to the left side. In this case, the battery can be easily attached and detached. Further, by arranging a plurality of battery mounting portions in the front-rear direction, it is possible to suppress an increase in the size of the fastening tool in the left-right direction.

In one aspect of the present invention, the fastening tool is a fastening tool at least one battery protection unit configured to protect at least a part of the plurality of batteries from external force when a plurality of batteries are mounted on the plurality of battery mounting units. May be provided. In this case, at least a part of the plurality of batteries arranged in the front-rear direction can be effectively protected from external forces from the front and the rear.

In one aspect of the invention, the fastening tool may further include a control unit configured to control the operation of the fastening tool. The steering wheel may project from the housing in a direction intersecting the drive shaft. When the direction orthogonal to the drive axis and corresponding to the extending direction of the handle is defined as the vertical direction of the fastening tool, and the direction in which the handle protrudes from the housing is defined as the downward direction in the vertical direction, a plurality of cases are specified. The battery mounting portions may be two battery mounting portions provided side by side in the crossing directions intersecting in the vertical direction on the lower side with respect to the handle. The control unit may at least partially overlap both of the two battery mounting portions in the crossing direction, and may be arranged directly below the steering wheel and above the two battery mounting portions. With such an arrangement of the controller and the battery mounting portion, when two batteries are mounted, a good weight balance in the crossing direction around the handle can be realized. In addition, it is possible to save space for the plurality of battery mounting parts and the controller as a whole, and to realize efficient wiring for electrically connecting the plurality of battery mounting parts and the controller.

In one aspect of the present invention, the fastening tool may further include an operation unit configured to be externally operated by the user. Then, the operation unit may be arranged on the rear side with respect to the handle. In this case, the user can easily operate the operation unit while holding the handle.

In this embodiment, the steering wheel may project from the housing in a direction intersecting the drive shaft. When the direction orthogonal to the drive axis and corresponding to the extending direction of the handle is defined as the vertical direction of the fastening tool, and the direction in which the handle protrudes from the housing is defined as the downward direction in the vertical direction, the operation unit Is preferably arranged so that it can be operated from above. In this case, the user can easily see the operation unit.

In one aspect of the present invention, the fastening tool is a fastening tool at least one battery protection unit configured to protect at least a part of the plurality of batteries from external force when a plurality of batteries are mounted on the plurality of battery mounting units. May be provided. Then, the plurality of battery mounting portions and at least one battery protecting portion may be configured to be integrally rotatable around a rotation axis with respect to the housing. In this case, the user can rotate the plurality of battery mounting portions and at least one battery protecting portion and arrange them in appropriate positions according to the space around the fastening tool. Further, the user can change the attachment / detachment direction of the battery to a desired direction by rotating the plurality of battery mounting portions and at least one battery protection portion.

It is explanatory drawing which shows an example of a fastener. It is a left side view of the fastening tool of 1st Embodiment. It is a perspective view from the right side of a fastening tool. It is a front view of the fastening tool. It is sectional drawing of the fastening tool. It is sectional drawing of the lower end part of a handle and a battery housing (however, the battery shows only the outer shape). It is a perspective view of a battery. It is a rear view of the battery housing for demonstrating the structure of the battery mounting part. It is explanatory drawing of the adapter. It is a perspective view of the fastening tool of the 2nd Embodiment. It is sectional drawing of a support part and a battery housing. It is sectional drawing of the support part. FIG. 2 is a cross-sectional view taken along the line XIII-XIII of FIG. It is sectional drawing of the upper end part of a battery housing. It is sectional drawing in the XV-XV line of FIG. It is a perspective view of the fastening tool of the third embodiment (however, it shows the state in which the collection container is removed). It is a left side view of the fastening tool of the 4th embodiment. It is a perspective view of the fastening tool of the 5th embodiment. It is a perspective view of the fastening tool of the sixth embodiment. It is a left side view of the fastening tool of the 7th embodiment. It is a left side view of the fastening tool of the eighth embodiment.

Hereinafter, embodiments will be described with reference to the drawings.

[First Embodiment]
Hereinafter, the fastening tool 101 according to the first embodiment will be described with reference to FIGS. 1 to 9. The fastening tool 101 of the present embodiment is configured to fasten a work material using a fastener. Further, the fastening tool 101 can selectively use a plurality of types of fasteners. First, a fastener 8 which is an example of a fastener that can be used in the fastening tool 101 will be described with reference to FIG.

The fastener 8 shown in FIG. 1 is an example of a known fastener called a multi-piece swage type fastener. The fastener 8 is composed of a pin 81 and a collar 85. The pin 81 includes a shaft portion 811 and a head 815 integrally formed at one end of the shaft portion 811. The collar 85 is a cylindrical member through which the shaft portion 811 can be inserted. The pin 81 and the collar 85 are originally formed as separate bodies from each other. The fastening tool 101 (see FIG. 2) pulls the shaft portion 811 of the pin 81 in the axial direction with respect to the collar 85, so that the collar 85 is deformed and crimped to the head 815 of the pin 81 and the shaft portion 811 of the pin 81. The work material W is fastened with the collar 85.

In addition, there are a type in which a part of the shaft portion of the pin (also referred to as a pin tail or a mandrel) is torn off and a type in which the shaft portion of the pin is maintained as it is without being torn off. The fastener 8 is a type in which the shaft portion 811 is torn off (also referred to as a tear-off type or a breaking type). In each type, there are a plurality of types of fasteners having different axial lengths, diameters, materials of pins and collars, and positions, numbers, shapes, etc. of grooves formed in the shaft portion. The fastening tool 101 can selectively use a plurality of types of fasteners by exchanging the nose assembly 37 (see FIG. 5) described later.

Hereinafter, the schematic configuration of the fastening tool 101 will be described.

As shown in FIGS. 2 to 5, the outer shell of the fastening tool 101 is mainly formed by the main body housing 11, the nose 13, the handle 151, and the battery housing 21. The main body housing 11 is formed in a rectangular box shape as a whole, and extends along a predetermined drive shaft A1. The main body housing 11 houses the motor 4 and the drive mechanism 3. The nose 13 projects along the drive shaft A1 from one end of the main body housing 11 in the long axis direction. The handle 151 projects from the central portion of the main body housing 11 in the long axis direction (extending direction of the drive shaft A1) in a direction intersecting the drive shaft A1 (specifically, a direction substantially orthogonal to the drive shaft A1). The handle 151 is provided with a trigger 161 that is pulled (pressed) by the user. The battery housing 21 is formed in a rectangular box shape as a whole, and is connected to the protruding end of the handle 151. Two rechargeable batteries 91 can be attached to and detached from the battery housing 21.

When the user engages, for example, the fastener 8 (see FIG. 1) with the tip of the nose 13 and pulls the trigger 161, the motor 4 is driven and the pin 81 is axially pulled with respect to the collar 85. The work material is fastened by the fastener 8.

In the following, regarding the direction of the fastening tool 101, for convenience of explanation, the extending direction of the drive shaft A1 (or the long shaft of the main body housing 11) is defined as the front-rear direction of the fastening tool 101. In the front-rear direction, the side on which the nose 13 is arranged is defined as the front side, and the opposite side is defined as the rear side. Further, the direction orthogonal to the drive shaft A1 and corresponding to the extending direction of the long shaft of the handle 151 is defined as the vertical direction. In the vertical direction, the protruding end side (battery housing 21 side) of the handle 151 is defined as the lower side, and the base end side (main body housing 11 side) of the handle 151 is defined as the upper side. Further, the direction orthogonal to the front-back direction and the up-down direction is defined as the left-right direction.

Hereinafter, the detailed configuration of the fastening tool 101 will be described.

First, the internal structure of the main body housing 11 will be described. As shown in FIG. 5, the main body housing 11 mainly houses a motor 4 and a drive mechanism 3 driven by the motor 4.

The motor 4 is housed in the lower part of the rear end portion of the main body housing 11. In this embodiment, a brushless direct current (DC) motor is adopted as the motor 4. The motor 4 includes a motor main body 41 including a stator and a rotor, and a motor shaft 43 that rotates integrally with the rotor. The motor 4 is arranged so that the rotation shaft A2 of the motor shaft 43 extends below the drive shaft A1 in parallel with the drive shaft A1 (that is, in the front-rear direction). The front end of the motor shaft 43 projects into the planetary reducer 30. A fan 47 for cooling the motor 4 is fixed to the rear end of the motor shaft 43.

The drive mechanism 3 is a mechanism configured to move the pin gripping portion 373, which will be described later, with respect to the anvil 371 along the drive shaft A1 in the front-rear direction by the power of the motor 4. In the present embodiment, the drive mechanism 3 includes a planetary reducer 30, a nut drive gear 311 provided on the first intermediate shaft 31, an idle gear 331 provided on the second intermediate shaft 33, and a ball screw mechanism 35. Including. Hereinafter, these configurations will be described in order.

The planetary reducer 30 is arranged coaxially with the motor 4 on the front side of the motor 4 in the main body housing 11. The planetary speed reducer 30 is a speed reducer using a planetary gear mechanism, and is configured to increase the torque input from the motor shaft 43 according to the reduction ratio and output the torque to the first intermediate shaft 31. In the present embodiment, the planetary reducer 30 is configured as a three-stage planetary reducer including three sets of planetary gear mechanisms. Since the configuration of the planetary gear mechanism itself is well known, detailed description thereof will be omitted here. The sun gear of the planetary gear mechanism of the first stage (the most upstream side of the power transmission path) is fixed to the front end of the motor shaft 43 which is the input shaft of the planetary reducer 30. The output shaft of the planetary reducer 30 is a carrier of the planetary gear mechanism of the third stage (the most downstream side of the power transmission path). The three sets of planetary gear mechanisms are housed in a gear case that is held non-rotatably by the body housing 11.

The first intermediate shaft 31 extends forward from the planetary reducer 30 in the main body housing 11 coaxially with the motor shaft 43 and the planetary reducer 30. The first intermediate shaft 31 is connected to the carrier of the planetary gear mechanism of the third stage of the planetary reducer 30. The first intermediate shaft 31 is rotatably supported around the rotation shaft A2 by two bearings and rotates integrally with the carrier. The nut drive gear 311 is integrally provided on the outer peripheral portion of the first intermediate shaft 31.

The second intermediate shaft 33 extends above the first intermediate shaft 31 and parallel to the first intermediate shaft 31. The idle gear 331 is supported by the second intermediate shaft 33 via a bearing, and is rotatable around the axis of the second intermediate shaft 33. The idle gear 331 meshes with the nut drive gear 311 and the driven gear 352 of the nut 351 described later, but does not affect the ratio of the rotation speeds of both.

The ball screw mechanism 35 is mainly composed of a nut 351 and a screw shaft 356. In the present embodiment, the ball screw mechanism 35 is configured to convert the rotary motion of the nut 351 into a linear motion of the screw shaft 356 and linearly move the pin grip portion 373 described later.

The nut 351 is supported by the main body housing 11 in a state where movement in the front-rear direction is restricted and the nut 351 can rotate around the drive shaft A1. The nut 351 is formed in a cylindrical shape and has a driven gear 352 integrally provided on the outer peripheral portion. The nut 351 is supported by a pair of radial bearings on the front and rear sides of the driven gear 352. The nut drive gear 311 and the driven gear 352 are configured as a reduction gear mechanism.

The screw shaft 356 is engaged with the nut 351 in a state in which rotation around the drive shaft A1 is restricted and the screw shaft 356 can move in the front-rear direction along the drive shaft A1. More specifically, the screw shaft 356 is configured as a long body and is inserted through the nut 351 so as to extend along the drive shaft A1. Although detailed illustration is omitted, a large number of balls can roll in the trajectory defined by the spiral groove formed on the inner peripheral surface of the nut 351 and the spiral groove formed on the outer peripheral surface of the screw shaft 356. Have been placed. The screw shaft 356 engages the nut 351 via these balls. Further, although detailed illustration is omitted, a pair of arms extending from the screw shaft 356 to the left and right are provided at the rear end of the screw shaft 356. Each arm rotatably supports the roller. The roller is engaged with the guide groove of the roller guide fixed to the main body housing 11. The rollers can roll in the front-rear direction along the guide groove while the movement in the up-down direction is restricted.

With such a configuration, when the nut 351 is rotated around the drive shaft A1, the screw shaft 356 is linear with respect to the nut 351 and the main body housing 11 in the front-rear direction while the rotation around the drive shaft A1 is restricted. Move into a shape.

An extension shaft 357 is coaxially connected and fixed to the rear end of the screw shaft 356, and is integrated with the screw shaft 356. Hereinafter, the integrated screw shaft 356 and the extension shaft 357 are collectively referred to as a drive shaft 355. The drive shaft 355 has a through hole that penetrates the drive shaft 355 along the drive shaft A1. An opening 113 having a circular cross section is formed on the drive shaft A1 at the rear end of the main body housing 11. The opening 113 is configured so that the collection container 115 can be attached and detached. The recovery container 115 is a container for accommodating the pintail separated in the fastening process. The pintail separated from the fastener reaches the collection container 115 through the through hole of the drive shaft 355 and is housed in the collection container 115.

Hereinafter, the nose 13 will be described. The nose 13 includes a nose assembly 37 and a nose adapter 131 holding the nose assembly 37. Note that the "assembly" here is not a single assembly formed by assembling a plurality of parts, but a plurality of separate sets defined as a set for use in a specific purpose. Refers to the parts of. Hereinafter, the nose assembly 37 and the nose adapter 131 will be described in order.

As shown in FIG. 5, the nose assembly 37 is configured to abut (engage) the collar 85 of the fastener 8 (see FIG. 1), and is held by the main body housing 11 with an anvil 371 and a pin 81 of the fastener 8. Is configured to be grippable, and is mainly composed of a pin gripping portion 373 held so as to be relatively movable in the front-rear direction along the drive shaft A1 with respect to the anvil 371. Since the configuration of the nose assembly 37 is known, it will be briefly described below.

The anvil 371 is cylindrical as a whole and has a bore extending along the drive shaft A1. The pin grip portion 373 is held in the bore coaxially with the anvil 371 and is slidable in the bore. The tip of the bore has a smaller diameter than the other portions and can abut (engage) with the collar 85. Although detailed illustration is omitted, the pin gripping portion 373 has a plurality of claws (also referred to as jaws) capable of gripping the shaft portion 811 (see FIG. 1) of the pin 81. The pin gripping portion 373 is configured so that the gripping force of the claw increases as the pin gripping portion 373 moves rearward from the initial position with respect to the anvil 371.

In the present embodiment, the nose assembly 37 can be attached to and detached from the front end portion of the main body housing 11 via the nose adapter 131. As described above, the fastening tool 101 of the present embodiment can selectively use a plurality of types of fasteners. The user attaches an appropriate type of nose assembly 37 to the main body housing 11 according to the fastener actually used. In the present embodiment, the nose assembly 37 for the tear-off type fastener 8 is exemplified, but the nose assembly 37 corresponding to the shaft-maintaining type fastener also grips the anvil that can contact the collar of the fastener and the pin. It is basically the same as the nose assembly 37 for the fastener 8 in that it has a plurality of possible claws and a pin grip portion held so as to be relatively movable along the drive shaft A1 with respect to the anvil. It can be said that it has a configuration.

The nose adapter 131 is configured to connect the anvil 371 to the main body housing 11 and the pin grip portion 373 to the screw shaft 356. More specifically, the nose adapter 131 includes a connecting member 132, a sleeve 133, and a fixing ring 134.

The connecting member 132 is a cylindrical member that connects the screw shaft 356 and the pin gripping portion 373. The connecting member 132 is screwed into the front end portion of the screw shaft 356 and the rear end portion of the pin grip portion 373, respectively. The connecting member 132 has a through hole that penetrates the connecting member 132 along the drive shaft A1 and communicates with the through hole of the drive shaft 355. The connecting member 132 is slidable in the sleeve 133 along the drive shaft A1. The sleeve 133 and the fixing ring 134 are configured to connect the anvil 371 to the body housing 11. The sleeve 133 is a cylindrical member and is fixed to the front end portion of the main body housing 11 so as to project forward along the drive shaft A1. The anvil 371 is fitted and held inside the front half portion of the sleeve 133. The fixing ring 134 is fitted on the outer circumference of the anvil 371 and screwed onto the sleeve 133.

Hereinafter, the handle 151 will be described. As shown in FIGS. 3 and 5, the handle 151 is a long tubular portion that extends continuously downward from the lower central portion in the front-rear direction of the main body housing 11. As described above, the motor 4, the planetary reducer 30, and the nut drive gear 311 are arranged coaxially in the main body housing 11 in this order from the rear side. The handle 151 extends downward from directly below the planetary reducer 30.

The handle 151 is a portion gripped by the user, and a trigger 161 that can be pulled by the user is provided at the upper end portion thereof. A switch 162 is housed inside the handle 151. The switch 162 is always kept in the off state, and is turned on in response to the pulling operation of the trigger 161. The switch 162 is electrically connected to the control circuit 171 of the controller 17 by a wiring (not shown), and when it is turned on, it outputs an on signal to the control circuit 171.

A hand guard 157 is provided in front of the handle 151. The hand guard 157 is formed in a long tubular shape, is separated forward from the handle 151, extends substantially in the vertical direction, and connects the lower front end portion of the main body housing 11 and the upper end portion of the battery housing 21. ing. In the present embodiment, the hand guard 155 is integrally molded with resin together with the main body housing 11, the battery housing 17, and the handle 15, and is provided to increase the rigidity of the molded body. In addition to this, the hand guard 157 can protect the user's hand holding the handle 151.

Hereinafter, the battery housing 21 will be described. As shown in FIG. 5, the battery housing 21 is configured as an inverted U-shaped hollow body that is longer in the front-rear direction than in the left-right direction. Further, as shown in FIGS. 4 and 5, the dimensions of the battery housing 21 in the front-rear direction and the left-right direction are larger than those of the handle 151, respectively. The lower end of the handle 151 is connected to a substantially central portion of the battery housing 21 in the front-rear direction and the left-right direction. Further, the length of the battery housing 21 in the front-rear direction is shorter than the length of the main body housing 11. The width of the battery housing 21 in the left-right direction is substantially equal to the width of the main body housing 11.

As shown in FIG. 6, a controller (also referred to as a control unit) 17 is housed in the battery housing 21. The controller 17 is formed in a substantially rectangular parallelepiped shape having a length, a width, and a thickness as a whole. Of the length, width, and thickness, the length is the largest and the thickness is the smallest. The controller 17 is arranged in the battery housing 21 so that the length direction, the width direction, and the thickness direction substantially coincide with the front-rear direction, the left-right direction, and the up-down direction, respectively. The controller 17 is arranged directly below the handle 151. When viewed from the left or right, the controller 17 is orthogonal to the drive shaft A1 and is located on a straight line passing through the planetary reducer 30 and the steering wheel 151.

Although detailed illustration is omitted, the controller 17 includes a case and a substrate housed in the case. A control circuit 171 that controls the fastening tool 101, a drive circuit for the motor 4, and the like are mounted on the substrate. In the present embodiment, the control circuit 171 is composed of a microcomputer including a CPU, a ROM, a RAM, and the like.

Two battery mounting portions 211 are provided in the lower portion of the battery housing 21 (lower side of the controller 17). Each battery mounting portion 211 is configured so that the battery 91 can be attached and detached. That is, in the present embodiment, the fastening tool 101 can be equipped with two batteries 91.

In the present embodiment, the two battery mounting portions 211 are provided side by side in the front-rear direction. More specifically, the two battery mounting portions 211 are arranged adjacent to each other on a straight line extending substantially in the front-rear direction when viewed from the left or right. Of the two battery mounting portions 211, the front battery mounting portion 211 is provided in the front half portion of the battery housing 21, and the rear battery mounting portion 211 is provided in the latter half portion of the battery housing 21.

As shown in FIG. 5, the two battery mounting portions 211 are located within the range from the front end to the rear end of the main body housing 11 in the front-rear direction. When viewed from the left or right, the front battery mounting portion 211 is orthogonal to the drive shaft A1 and is located on a straight line passing through the center of the nut drive gear 311 (and the driven gear 352 of the nut 351) in the axial direction (front-rear direction). To do. On the other hand, the rear battery mounting portion 211 is orthogonal to the drive shaft A1 and is located on a straight line passing through the center of the motor main body 41 in the axial direction (front-rear direction) when viewed from the left or right. As described above, in the present embodiment, by arranging the two battery mounting portions 211 in the front-rear direction, the lengthening in the front-rear direction as a whole is suppressed. Further, by arranging the two battery mounting portions 211 in substantially the same range as the heavy motor 4 and the drive mechanism 3 in the front-rear direction, the center of gravity of the fastening tool 101 when the battery 91 is mounted is forward or It is suppressed to be biased backward.

Further, the two battery mounting portions 211 are arranged so as to at least partially overlap the controller 17 arranged directly below the handle 151 in the front-rear direction (or when viewed from above or below), respectively. More specifically, the controller 17 has its front and rear portions partially overlapping the front and rear battery mounting portions 211, respectively, when viewed from above or below. With such an arrangement of the controller 17 and the battery mounting portion 211, when two batteries 91 are mounted, a good weight balance in the front-rear direction can be realized centering on the handle 151. Further, it is possible to reduce the overall arrangement space of the two battery mounting portions 211 and the controller 17, and to realize efficient wiring for electrically connecting the two battery mounting portions 211 and the controller 17. ..

Here, the battery 91 will be briefly described. The battery 91 is a power source that can be repeatedly charged to supply electric power to each part of the fastening tool 101 and the motor 4, and is also called a battery pack. As shown in FIGS. 3, 6 and 7, the battery 91 is mainly composed of a case 910 formed in a substantially rectangular parallelepiped shape as a whole and a plurality of battery cells (not shown) housed in the case. ing. The case 910 has a pair of guide grooves 911, hooks 913, buttons 915, and terminals 917.

As shown in FIG. 6, the battery 91 is arranged on the battery mounting portion 211 so that one surface of the rectangular parallelepiped case 910 faces the lower surface of the battery housing 21. Therefore, in the following, for convenience of explanation, the one side facing the lower surface of the battery housing 21 is defined as the upper side in the vertical direction of the battery 91. Further, the vertical dimension of the battery 91 is referred to as a thickness, and of the two dimensions orthogonal to the vertical direction, the longer one is the length and the shorter one is the width. In the present embodiment, the length is the largest among the length, width, and thickness of the battery 91. Also, the width is greater than half the length. The thickness is smaller than the width, but may be larger than the width.

The pair of guide grooves 911 are formed as grooves extending linearly in the length direction at the upper ends of the pair of side surfaces arranged along the length direction of the case 910. Since the guide groove 911 is slidably engaged with the guide rail 212 described later, the extending direction of the guide groove 911 defines the attachment / detachment direction of the battery 91. That is, the battery 91 is moved in the length direction at the time of attachment / detachment. The hook 913 is provided at the upper end of the case 910. The hook 913 is urged by a spring (not shown) and always projects upward from the upper surface of the case 910. The button 915 is provided adjacent to the hook 913 at one end in the length direction of the case 910 and is mechanically connected to the hook 913. The hook 913 is configured to retract downward from the upper surface of the case 910 in response to a user pressing the button 915. The terminal 917 is provided adjacent to the hook 913 at a substantially central portion of the upper end portion of the case 910.

In the present embodiment, corresponding to the battery 91 having such a configuration, the battery mounting portion 211 is configured so that the upper end portion of the battery 91 is mounted with a part of the battery 91 exposed below the battery mounting portion 211. Has been done. The two battery mounting portions 211 have the same configuration, and the attachment / detachment direction of the battery 91 with respect to the two battery mounting portions 211 is the same. Specifically, both of the two battery mounting portions 211 can be mounted by sliding the battery 91 from the right side to the left side with respect to the battery mounting portion 211, and can be removed by sliding in the opposite direction. ing.

More specifically, each battery mounting portion 211 has a pair of guide rails 212, a locking recess 213, and a terminal 214, as shown in FIGS. 6 and 8.

The pair of guide rails 212 are a pair of rails extending in a straight line in parallel with each other. The guide rail 212 is configured to be slidably engaged with the guide groove 911 of the battery 91, and defines the attachment / detachment direction of the battery 91 with respect to the battery mounting portion 211. In this embodiment, the guide rail 212 extends in the left-right direction. The locking recess 213 is a recess recessed upward, and is configured so that the hook 913 of the battery 91 can be engaged. The locking recess 213 is arranged at the right end of the battery mounting portion 211. The terminal 214 is a terminal that can be electrically connected to the terminal 917 of the battery 91. The locking recess 213 and the terminal 214 are arranged between the pair of guide rails 212 in the front-rear direction. In the present embodiment, the battery 91 is mounted on the battery mounting portion 211 in a direction in which the length direction coincides with the left-right direction. Therefore, correspondingly, each battery mounting portion 211 is longer in the left-right direction than in the front-rear direction.

The mounting direction of the battery 91 with respect to the two battery mounting portions 211 may be a direction in which the battery 91 is slid from the left side to the right side with respect to the battery mounting portion 211. Further, the attachment / detachment directions of the batteries 91 with respect to the two battery mounting portions 211 may be opposite to each other.

The method of attaching / detaching the battery 91 to / from the battery mounting portion 211 is as follows.

When mounting the battery 91, the user moves the battery 91 from the right side to the left side with the hook 913 and the button 915 arranged on the right side, and slides the guide groove 911 to the guide rail 212. When the battery 91 is moved to the left side with the hook 913 retracted downward from the upper surface and the hook 913 reaches a predetermined position corresponding to the locking recess 213, the hook 913 is urged upward and engages with the locking recess 213. It fits. Further, the terminals of the battery 91 are electrically connected to the terminals 214 of the battery mounting portion 211, so that power can be supplied to each part of the fastening tool 101 and the motor 4.

As described above, the guide rail 212 has a function of defining the attachment / detachment direction of the battery 91 with respect to the battery mounting portion 211 and guiding the attachment / detachment. Further, the guide rail 212 also has a function of engaging with the battery 91 and preventing the battery 91 from falling off from the battery mounting portion 211. Further, the locking recess 213 engages with the hook 913 to position the battery 91 in the front-rear direction with respect to the battery mounting portion 211, and holds the battery 91 at that position (the battery 91 moves in the attachment / detachment direction). It has a function (to regulate).

When the two batteries 91 are mounted on the battery mounting portion 211, the lower surfaces of the two batteries 91 are substantially flush with each other. As shown in FIG. 4, the length of the battery 91 is slightly larger than the width of the battery housing 21 in the left-right direction. Therefore, when mounted on the battery mounting portion 211, both ends of the battery 91 in the length direction slightly project from the battery housing 21 in the left-right direction.

When removing the battery 91, the user presses the button 915 to disengage the hook 913 from the locking recess 213, moves the battery 91 to the right, and causes the guide groove 911 with respect to the guide rail 212. The slide engagement may be released.

Not only the battery 91 but also the adapter 93 shown in FIG. 9 can be attached to and detached from the battery mounting portion 211. Since such an adapter 93 is known, it will be briefly described here.

The adapter 93, also referred to as a dummy battery, has substantially the same shape and dimensions as the battery 91, except that it does not have a battery cell and a connection cord 933 is connected. That is, like the battery 91, the adapter 93 has a guide groove 911 that can be engaged with the guide rail 212 of the battery mounting portion 211, a hook 913, a button 915, and a terminal 917 (see FIG. 7). One end of the connection cord 933 is connected to one end in the length direction of the adapter 93 (the end where the button 915 is arranged), and the other end is connected to the main body unit 931.

The adapter 93 does not function as a power source for the fastening tool 101, but is configured to function as a repeater that sends power from the battery 91 housed in the main unit 931 to the fastening tool 101. The main unit 931 is provided with a power supply circuit or the like that is electrically connected to the battery 91 housed in the main unit 931. When the terminal 917 of the adapter 93 is connected to the terminal 214 of the battery mounting portion 211, the main body unit 931 is electrically connected to the fastening tool 101 via the connection cord 933, and power is transmitted from the battery 91 to the fastening tool 101. It will be possible to supply.

Although detailed illustration is omitted, the main body unit 931 has a hook that can be engaged with the user's belt or the like. Since the adapter 93 is lighter than the battery 91, the user attaches the adapter 93 to the fastening tool 101 instead of the battery 91 and fastens with the electric power supplied from the battery 91 housed in the main unit 931. You can work. As described above, the adapter 93 can be said to be a substitute for the battery 91. Therefore, in the following description of the battery 91, the battery 91 may be read as the adapter 93.

As shown in FIGS. 3, 4 and 6, in this embodiment, the battery housing 21 includes a battery guard 217. As described above, of the batteries 91, only the upper end portion of the battery 91 is mounted on the battery mounting portion 211 and covered by the battery housing 21. Therefore, when mounted on the battery mounting portion 211, most of the portion other than the upper end portion of the battery 91 is exposed below the battery mounting portion 211. The battery guard 217 is configured to protect the exposed portion of the battery 91 mounted on the battery mounting portion 211 from an external force.

In this embodiment, two battery guards 217 are provided on the front side and the rear side of the two battery mounting portions 211, respectively. The two battery guards 217 are portions of the battery housing 21 that project downward from the battery mounting portion 211 with the two battery mounting portions 211 interposed therebetween. That is, a part of the battery housing 21 forms the battery guard 217.

In the vertical direction, each of the two battery guards 217 is configured such that the lower ends thereof project slightly downward from the lower surface of the battery 91 mounted on the battery mounting portion 211. Further, in the left-right direction, the battery guard 217 is slightly shorter than the battery 91. The battery guard 217 is particularly provided to protect the battery 91 from the impact when the fastening tool 101 is dropped. Therefore, the shape of the battery guard 217 is such that when the fastening tool 101 to which the battery 91 is mounted falls, the battery 91 does not collide with the floor or the ground with the center of gravity on it (that is, just below the center of gravity, from the battery 91). The battery guard 217 is set to collide with the floor or the ground first). Further, in order to suppress the increase in size and weight of the fastening tool 101, the size of the battery guard 217 is set to the minimum size that can protect the battery 91.

Further, the battery guard 217 on the front side mainly interferes with an external force toward the battery 91 mounted on the battery mounting portion 211 on the front side from the front (including the oblique direction) of the battery guard 217, thereby causing the battery 91 to move. Can be protected. Further, the battery guard 217 on the rear side mainly interferes with an external force directed from the rear side (including the oblique direction) of the battery guard 217 toward the battery 91 mounted on the battery mounting portion 211 on the rear side, thereby causing the battery. 91 can be protected. The battery guard 217 is a part of the hollow battery housing 21, but is reinforced by a plurality of ribs 218 arranged inside. This reduces the possibility that the battery guard 217 will be damaged.

Further, as shown in FIG. 6, the operation portion 176 is provided on the upper surface of the portion of the battery housing 21 that protrudes rearward from the lower end portion of the handle 151. That is, the operation unit 176 is arranged on the rear side with respect to the handle 151. The operation unit 176 is an input device that can be externally operated by the user. Although detailed illustration is omitted, in the present embodiment, the operation unit 176 includes a plurality of push button type switches capable of pressing operations. Further, the operation unit 176 is also provided with a display unit for displaying information. The user can input various information by pressing the switch of the operation unit 176.

As described above, in the present embodiment, the fastening tool 101 is configured to be compatible with both a tear-off type fastener (for example, the fastener 8 shown in FIG. 1) and a shaft-maintaining type fastener, and is a control circuit. The 171 controls the drive of the motor 4 according to the operation mode corresponding to the type of fastener used. Therefore, the user can input information for designating the operation mode via the operation unit 176. The operation unit 176 (switch) is electrically connected to the control circuit 171 by a wiring (not shown), and outputs a signal indicating an on / off state of each switch to the control circuit 171.

Hereinafter, the work of fastening the work material using the fastening tool 101 will be described.

First, the user attaches the nose assembly 37 according to the fastener to be used (fastener 8 shown in FIG. 1 or another fastener) to the fastening tool 101. Further, the operation mode according to the type of fastener used is specified via the operation unit 176. As described above, the operation unit 176 is arranged on the rear side of the handle 151 in a direction capable of being operated from above. Therefore, the user can easily visually recognize the operation unit 176 even when the handle 151 is gripped, and can easily operate the operation unit 176.

As shown in FIG. 5, in the initial state in which the trigger 161 is not pulled, the screw shaft 356 (that is, the drive shaft 355) and the pin grip portion 373 are arranged in the initial position (frontmost position). The user engages the tip of the anvil 371 with the collar and loosely grips the shaft of the pin with the tip (claw) of the pin grip 373. When the user pulls the trigger 161 and the switch 162 is turned on, the control circuit 171 of the controller 17 starts the forward rotation drive of the motor 4. The increased torque is transmitted to the nut 351 via the planetary reducer 30, the nut drive gear 311 and the driven gear 352. As the nut 351 rotates, the screw shaft 356 is moved rearward. Along with this, the pin grip portion 373 connected to the screw shaft 356 is pulled backward, and the shaft portion of the pin is firmly gripped by the pin grip portion 373 and pulled backward along the drive shaft A1.

The fastening of the work material is completed with the collar deformed and crimped to the shaft portion and the work material is sandwiched between the pin head and the collar. As described above, in the fastening tool 101, the user specifies an operation mode according to the type of fastener to be used via the operation unit 176. The control circuit 171 specifies an operation mode based on a signal from the operation unit 176, stops the forward rotation drive of the motor 4 at a timing corresponding to the operation mode, and stops the rearward movement of the screw shaft 356. As a method of stopping the rearward movement of the screw shaft 356 according to the operation mode, for example, the method disclosed in Japanese Patent Application Laid-Open No. 2018-103257 can be adopted. After that, the control circuit 171 reversely drives the motor 4 and returns the screw shaft 356 to the initial position.

As described above, in the fastening tool 101 of the present embodiment, the pin gripping portion 373 that grips the fastener pin is moved rearward with respect to the anvil 371 that engages with the fastener collar by the power of the motor 4. As a result, the pin is pulled to deform the fastener, and the work material is fastened. Since the fastening tool 101 includes two battery mounting portions 211, power can be supplied to the fastening tool 101 from the two batteries 91. Therefore, the fastening tool 101 can exhibit a higher output (greater tensile force) than the fastening tool to which only one battery 91 can be mounted.

Further, in the present embodiment, the two battery mounting portions 211 are arranged below the handle 151. Further, each battery mounting portion 211 is configured so that the battery 91 can be attached and detached in the left-right direction. Specifically, each battery mounting portion 211 has a guide rail 212 extending in the left-right direction and slidably engaging with the guide groove 911 of the battery 91. With such a configuration, the user can easily attach / detach the battery 91 even while holding the handle 151. In particular, in the present embodiment, the battery 91 is mounted on both of the two battery mounting portions 211 in the same direction from the right side to the left side, so that the battery 91 can be attached and detached very easily.

Further, the two battery mounting portions 211 are arranged in the front-rear direction, and the battery 91 can be attached and detached in the left-right direction. The length of the battery mounting portion 211 in the left-right direction generally corresponds to the length of the battery 91. Therefore, in the fastening tool 101, when the two battery mounting portions 211 are arranged in the left-right direction (that is, the length of the two battery mounting portions 211 as a whole in the left-right direction is at least twice the width of the battery 91). ), The increase in size in the left-right direction is suppressed. Therefore, the fastening tool 101 can be suitably used when the space in the left-right direction is relatively narrow, for example, when fastening work is performed near a wall. Further, the length of the two battery mounting portions 211 as a whole in the front-rear direction is at least twice the width of the battery 91, but when the battery 91 is attached / detached in the front-rear direction (that is, the two battery mounting portions 211). Compared to the case where the overall length in the front-rear direction is at least twice the length of the battery 91), the increase in size in the front-rear direction is also suppressed.

Further, by setting the attachment / detachment direction of the battery 91 to the left-right direction orthogonal to the drive shaft A1, there are the following advantages regarding the configuration of the main body housing 11, the handle 151, and the battery housing 21, for example.

The terminal 214 of the battery mounting portion 211 needs to be mounted on the battery housing 21 in an orientation that matches the attachment / detachment direction of the battery 91. Therefore, when the attachment / detachment direction of the battery 91 is the left-right direction, the battery housing 21 is formed of the left and right halves, and the terminal 214 is inserted to the left or right with respect to any of the halves. Assembling the terminal 214 is easy and rational. Further, for at least a part of the main body housing 11 and the handle 151, the left and right halves are generally adopted for the convenience of assembling internal parts such as the motor 4, the drive mechanism 3, and the switch 162, and wiring. is there. Therefore, by forming at least a part of the main body housing 11, the handle 151, and the battery housing 21 with an integral left and right halves, it is possible to realize the most rational configuration that is easy to assemble and wire. it can.

Further, the fastening tool 101 includes two battery guards 217 provided on the front side and the rear side, respectively, for the two battery mounting portions 211. Therefore, at least a part of the plurality of batteries arranged in the front-rear direction can be effectively protected from external forces from the front and the rear. Of the two batteries 91, the front side of the front battery 91 and the rear side of the rear battery 91 are easily exposed to external forces from the front and the rear. The two battery guards 217 can effectively protect at least these parts.

[Second Embodiment]
Hereinafter, the fastening tool 102 according to the second embodiment will be described with reference to FIGS. 10 to 15. The fastening tool 102 of the present embodiment has a battery housing 22 having a configuration different from that of the fastening tool 101 of the first embodiment, but the other configurations are substantially the same as those of the fastening tool 101. Therefore, in the following, the configurations substantially the same as those of the first embodiment will be designated by the same reference numerals, and the description thereof will be omitted or simplified, and different configurations will be mainly described. The same applies to other embodiments described later.

In the present embodiment, the battery housing 22 is configured to be rotatable with respect to the main body housing 11 and the handle 151. More specifically, as shown in FIGS. 10 and 11, the battery housing 22 is rotatably supported by a support 20 that connects to the lower end of the handle 151. Hereinafter, the detailed configurations of the support portion 20 and the battery housing 22 will be described in order.

As shown in FIGS. 11 to 13, the support portion 20 is a hollow disk-shaped portion continuously formed at the lower end portion of the handle 151. The internal space of the support portion 20 and the internal space of the handle 151 are communicated with each other by a through hole formed in the upper wall portion of the support portion 20. The support portion 20 is continuously formed at the lower end portion of the hand guard 157 as well as the handle 151.

The lower wall portion of the support portion 20 has a support hole 201, two locking recesses 202, and two locking recesses 203. The support hole 201 is a through hole having a circular cross section formed in the central portion of the lower wall portion. The two locking recesses 202 and the two locking recesses 203 are alternately arranged at equal intervals around the support holes 201. The locking recess 202 is a recess recessed downward from the upper surface of the lower wall portion of the support portion 20, and has a circular cross section having a diameter smaller than that of the support hole 201. The two locking recesses 202 are arranged on a straight line extending in the front-rear direction with the support hole 201 interposed therebetween. The locking recess 203 is a recess recessed downward from the upper surface of the lower wall portion of the support portion 20. The two locking recesses 203 extend radially outward from the support hole 201 along a straight line extending in the left-right direction with the support hole 201 interposed therebetween. The radial outer end of the locking recess 203 has the same shape as the locking recess 202, and is located at a position separated from the central axis of the support hole 201 by the same distance as the locking recess 202.

As shown in FIGS. 11, 14 and 15, in this embodiment, the support portion 20 supports the upper end portion of the battery housing 22. The upper end of the battery housing 22 connects the shaft portion 221 inserted into the support hole 201 and the locking portion 223 coaxially connected to the shaft portion 221 on the upper side of the shaft portion 221 and arranged in the support portion 20. Including.

The shaft portion 221 is formed in a cylindrical shape and has a central axis A3. The shaft portion 221 has an outer diameter substantially equal to the diameter of the support hole 201, and is configured to be slidable in the support hole 201 in the axial direction of the central axis A3 and in the circumferential direction around the central axis A3. The locking portion 223 is formed in a disk shape having a thickness smaller than that of the supporting portion 20. The locking portion 223 has a diameter substantially equal to the inner diameter of the support portion 20, and is configured to be slidable in the support portion 20 in the axial direction and the circumferential direction of the central axis A3. The lower wall portion of the locking portion 223 has two locking projections 224. The locking projection 224 is a (cylindrical) projection having a circular cross section that projects downward from the lower surface of the locking portion 223. The two locking projections 224 are arranged on a straight line orthogonal to the central axis A3 of the shaft portion 221 with the shaft portion 221 interposed therebetween. The locking projection 224 is configured to be fitted into the locking recess 202 or the locking recess 203 (see FIGS. 12 and 13) provided in the support portion 20.

The configuration of the portion other than the upper end portion of the battery housing 22 and its internal structure are substantially the same as those of the battery housing 21 of the first embodiment. Briefly, as shown in FIG. 11, the controller 17 is housed inside the battery housing 22 (lower side of the shaft portion 221). A through hole is provided in the upper wall portion of the locking portion 223. As a result, it is possible to arrange the wiring for connecting the controller 17 housed in the battery housing 22 and the switch 162 (see FIG. 5) housed in a portion other than the battery housing 22. Two battery mounting portions 211 are provided side by side in the lower portion of the battery housing 22 (lower side of the controller 17). Also in the present embodiment, as in the first embodiment, the attachment / detachment direction of the battery 91 with respect to the battery mounting portion 211 (extending direction of the guide rail 212) is a direction orthogonal to the juxtaposing direction of the two battery mounting portions 211. It is set. In this embodiment as well, the attachment / detachment directions of the batteries 91 of the two battery mounting portions 211 are the same, but they may be changed in opposite directions.

Further, the battery housing 22 includes two battery guards 217 arranged on both sides of the battery mounting portion 211 in the parallel direction of the battery mounting portion 211. The two battery guards 217 are provided so as to sandwich the battery mounting portion 211, and project downward from the battery mounting portion 211.

As shown in FIG. 11, the battery housing 22 is supported in a state where the shaft portion 221 is inserted into the support hole 201 and the locking portion 223 is arranged in the support portion 20, and the support portion 20 (and thus the main body housing) is supported. With respect to 11), it is rotatable in the circumferential direction around the central axis A3. In the present embodiment, the central axis A3 extends substantially in the vertical direction (generally parallel to the long axis of the handle 151). Further, the central axis A3 intersects the two battery mounting portions 211 in the parallel direction.

Further, the battery housing 22 is urged downward with respect to the support portion 20 by a spring member (for example, a compression coil spring or a torsion spring) 226 arranged between the upper wall portion of the support portion 20 and the locking portion 223. ing. As a result, in the battery housing 22, the two locking projections 224 of the locking portion 223 and the two locking recesses 202 of the support portion 20 in the circumferential direction with respect to the support portion 20 (and thus the main body housing 11) (FIG. 13). (See), or the two locking recesses 203 (see FIG. 13) can be locked at each fitting position. That is, two locking positions are set in the battery housing 22.

As shown in FIG. 11, when the battery housing 22 is arranged at the first locking position where the locking projection 224 fits into the locking recess 202, the two battery mounting portions 211 in the front-rear direction of the fastening tool 102. Are lined up, and two battery guards 217 are arranged on the front side and the rear side. On the other hand, although not shown, when the battery housing 22 is arranged at the second locking position where the locking projection 224 fits into the locking recess 203, the two battery mounting portions in the left-right direction of the fastening tool 102 211 are lined up and two battery guards 217 are arranged on the left and right sides.

The method of changing the locking position of the battery housing 22 is as follows. First, the user moves the locking portion 223 upward with respect to the supporting portion 20 against the urging force of the spring member 226 to disengage the locking projection 224 with the locking recess 202 or 203. .. The user further rotates the support portion 20 in the circumferential direction to engage with the locking recess 203 or 202.

As described above, in the fastening tool 102 of the present embodiment, the two battery mounting portions 211 and the two battery guards 217 rotate integrally around the central axis A3 with respect to the main body housing 11 as the battery housing 22. It is configured to be possible. Therefore, the user can perform the fastening operation by rotating the battery housing 22 according to the space around the fastening tool 101 and arranging the battery housing 22 at an appropriate position, for example. Further, the user can change the attachment / detachment direction of the battery 91 to a desired direction by rotating the battery housing 22.

Instead of the columnar locking projection 224 illustrated in the present embodiment, a locking projection having an inclined surface (cam surface) in a predetermined direction around the central axis A3 may be adopted. In this case, similarly, the locking recess 203 is also provided with an inclined surface (cam surface). In this case, the user can easily lock the battery housing 22 simply by rotating the battery housing 22 in a predetermined direction without pushing the battery housing 22 upward as in the case of engaging the locking protrusion 224 and the locking recess 203. The position can be changed.

Further, in order to prevent the battery housing 22 from rotating with respect to the support portion 20 without limitation, a stopper that defines a relative rotation angle may be provided. For example, by providing the support portion 20 and the locking portion 223 with protrusions that can be brought into contact with each other, it is possible to prevent the battery housing 22 and the support portion 20 from rotating relative to each other by 360 degrees or more.

[Third Embodiment]
Hereinafter, the fastening tool 103 according to the third embodiment will be described with reference to FIG. The fastening tool 103 of the present embodiment has a different orientation of the battery housing 23 from the fastening tool 101 of the first embodiment, but other configurations are substantially the same as those of the fastening tool 101.

As shown in FIG. 16, the fastening tool 103 includes a main body housing 11 having the same configuration as the fastening tool 101 (see FIG. 3), a nose 13, a handle 151, and a hand guard 157. Further, the fastening tool 103 includes a battery housing 23 connected to the lower end of the handle 151 and the hand guard 157.

The battery housing 23 of the present embodiment has substantially the same configuration as the battery housing 21 of the first embodiment, but the battery housing 21 extends in the front-rear direction, whereas the battery housing 23 of the present embodiment extends in the left-right direction. It is arranged so as to extend to. That is, the battery housing 23 is an inverted U-shaped hollow body that is long in the left-right direction. The battery housing 23 houses the controller 17 (see FIG. 6). Further, the battery housing 23 includes two battery mounting portions 211 and two battery guards 217.

In the present embodiment, the two battery mounting portions 211 are provided side by side in the left-right direction in the lower portion of the battery housing 23. The attachment / detachment directions of the batteries 91 with respect to the two battery mounting portions 211 are both in the front-rear direction (direction orthogonal to the parallel arrangement direction of the battery mounting portions 211). The attachment / detachment directions of the batteries 91 of the two battery mounting portions 211 are the same. More specifically, each battery mounting portion 211 is configured to be mountable by sliding the battery 91 from the rear side to the front side with respect to the battery mounting portion 211, and is removable by sliding in the opposite direction. .. However, the mounting direction of the battery 91 with respect to the two battery mounting portions 211 may be a direction in which the battery 91 is slid from the front side to the rear side with respect to the battery mounting portion 211. Further, the attachment / detachment directions of the batteries 91 with respect to the two battery mounting portions 211 may be opposite to each other.

The two battery guards 217 are arranged on both sides (that is, the left side and the right side) of the battery mounting portion 211 in the parallel direction of the battery mounting portion 211. The battery guard 217 on the left side mainly protects the battery 91 from the left side (including the diagonal direction) of the battery guard 217 by interfering with an external force toward the battery 91 mounted on the battery mounting portion 211 on the left side. can do. Further, the battery guard 217 on the right side mainly interferes with an external force directed from the right side (including the oblique direction) of the battery guard 217 toward the battery 91 mounted on the battery mounting portion 211 on the right side, so that the battery 91 Can be protected.

As described above, in the fastening tool 103 of the present embodiment, the two battery mounting portions 211 are arranged in the left-right direction, and the battery 91 is detachable in the front-rear direction. In this case, the length of the two battery mounting portions 211 as a whole in the front-rear direction roughly corresponds to the length of the battery 91. Therefore, in the fastening tool 103, when the two battery mounting portions 211 are lined up in the front-rear direction (that is, when the length of the two battery mounting portions 211 as a whole in the front-rear direction is at least twice the width of the battery 91). Compared to, the increase in size in the front-back direction is suppressed.

Such a fastening tool 103 may be advantageous, for example, when the above-mentioned adapter (dummy battery) 93 (see FIG. 9) is used. Specifically, as described above, one end of the connection cord 933 is connected to one end in the length direction of the adapter 93 (the end where the button 915 is arranged). Therefore, when the battery 91 is attached / detached in the left-right direction, the connection cord 933 protrudes to the right side (or left side). Therefore, if the space in the left-right direction is relatively narrow, the connection cord 933 may be an obstacle. On the other hand, in the fastening tool 103, the connection cord 933 protrudes to the rear side (or the front side), but there is a space between the connection cord 933 and the user's body on the rear side of the battery housing 23, and the nose on the front side. There is a space below 13. Therefore, the connection cord 933 does not get in the way even when the space in the left-right direction is relatively narrow.

When the attachment / detachment direction of the battery 91 is the front-rear direction parallel to the drive shaft A1, the battery housing 23 is formed of front and rear halves, and the terminal 214 is forward or rearward with respect to any of the halves. Once inserted, the terminals 214 are easy and rational to assemble. On the other hand, when the left and right halves are adopted for at least a part of the main body housing 11 and the handle 151, it is necessary to configure these and the battery housing 23 as separate housings and connect them to each other. In this case, for example, by arranging a cushioning material (for example, an elastic body such as a spring, rubber, or synthetic resin) between separate housings, it is possible to suppress the vibration of the motor 4 from being transmitted to the battery 91. it can. In addition, the cushioning material can absorb the impact when dropped.

[Fourth Embodiment]
Hereinafter, the fastening tool 104 according to the fourth embodiment will be described with reference to FIG. The fastening tool 104 of the present embodiment has a different configuration of the battery housing 24 from the fastening tool 101 of the first embodiment, but other configurations are substantially the same as the fastening tool 101.

As shown in FIG. 17, the fastening tool 104 includes a main body housing 11 having the same configuration as the fastening tool 101 (see FIG. 3), a nose 13, a handle 151, and a hand guard 157. Further, the fastening tool 104 includes a battery housing 24 that connects to the lower ends of the handle 151 and the hand guard 157.

The battery housing 24 in this embodiment is a hollow body having a substantially rectangular box shape that is long in the front-rear direction. The battery housing 24 houses the controller 17 (see FIG. 6). Further, the battery housing 24 includes two battery mounting portions 211.

In the present embodiment, the two battery mounting portions 211 are provided side by side in the front-rear direction at the lower end portion of the battery housing 23. The two battery mounting portions 211 are located within the range from the front end to the rear end of the main body housing 11 in the front-rear direction.

The attachment / detachment directions of the batteries 91 with respect to the two battery mounting portions 211 are both in the front-rear direction (direction parallel to the parallel arrangement direction of the battery mounting portions 211). However, the front side battery mounting portion 211 and the rear side battery mounting portion 211 are in opposite directions. Specifically, the battery mounting portion 211 on the front side can be mounted by sliding the battery 91 from the front side to the rear side with respect to the battery mounting portion 211, and can be removed by sliding it in the opposite direction. There is. On the other hand, the battery mounting portion 211 on the rear side can be mounted by sliding the battery 91 with respect to the battery mounting portion 211 from the rear side to the front side, and can be removed by sliding it in the opposite direction. That is, the mounting direction of the battery 91 with respect to the two battery mounting portions 211 is set so that the two batteries 91 approach each other.

As described above, in the fastening tool 104 of the present embodiment, the two battery mounting portions 211 are arranged in the front-rear direction, and the battery 91 is detachable in the front-rear direction. Therefore, as compared with the case where the battery mounting portions 211 are arranged in the left-right direction, the size of the fastening tool 101 in the left-right direction is suppressed. Further, the width of the two battery mounting portions 211 as a whole in the left-right direction roughly corresponds to the width of the battery 91. Therefore, in the fastening tool 104, when the two battery mounting portions 211 are arranged in the front-rear direction and the batteries 91 are attached / detached in the left-right direction (that is, the length of the two battery mounting portions 211 in the left-right direction is the length of the battery 91. Compared to the case where it generally corresponds to), the increase in size in the left-right direction is further suppressed. Such a fastening tool 104 is advantageous when the space in the left-right direction is narrow.

[Fifth Embodiment]
Hereinafter, the fastening tool 105 according to the fifth embodiment will be described with reference to FIG. The fastening tool 105 of the present embodiment has a different configuration of the battery housing 25 from the fastening tool 101 of the first embodiment, but other configurations are substantially the same as the fastening tool 101.

As shown in FIG. 18, the fastening tool 105 includes a main body housing 11 having the same configuration as the fastening tool 101 (see FIG. 3), a nose 13, a handle 151, and a hand guard 157. Further, the fastening tool 105 includes a battery housing 25 connected to the lower end of the handle 151 and the hand guard 157.

The battery housing 25 in this embodiment is a hollow body having a substantially rectangular box shape that is long in the front-rear direction. The battery housing 25 houses the controller 17 (see FIG. 6). Further, the battery housing 25 includes two battery mounting portions 211.

The two battery mounting portions 211 are provided side by side in the left-right direction. More specifically, the two battery mounting portions 211 are provided at the left end and the right end of the battery housing 25, respectively. However, in the fastening tools 101 to 104 of the first to fourth embodiments, all of the two pairs of guide rails 212 of the two battery mounting portions 211 are on the same surface, whereas in the present embodiment, one battery is used. The pair of guide rails 212 of the mounting portion 211 and the pair of guide rails 212 of the other battery mounting portion 211 are on two different surfaces separated in the left-right direction. Further, in the front-rear direction, the two battery mounting portions 211 are located within the range from the front end to the rear end of the main body housing 11.

The attachment / detachment direction of the battery 91 with respect to the two battery mounting portions 211 is the front-rear direction. The attachment / detachment directions of the batteries 91 of the two battery mounting portions 211 are the same. More specifically, each battery mounting portion 211 is configured to be mountable by sliding the battery 91 from the rear side to the front side with respect to the battery mounting portion 211, and is removable by sliding in the opposite direction. .. However, the mounting direction of the battery 91 with respect to the two battery mounting portions 211 may be a direction in which the battery 91 is slid from the front side to the rear side with respect to the battery mounting portion 211. Further, the attachment / detachment directions of the batteries 91 with respect to the two battery mounting portions 211 may be opposite to each other.

As described above, in the fastening tool 105 of the present embodiment, the two battery mounting portions 211 are arranged side by side in the left-right direction, and the battery 91 is detachable in the front-rear direction. In this case, the length of the two battery mounting portions 211 as a whole in the front-rear direction roughly corresponds to the length of the battery 91. Therefore, the fastening tool 104 is suppressed from being enlarged in the front-rear direction as compared with the case where the two battery mounting portions 211 are arranged in the front-rear direction. Such a fastening tool 104 may be advantageous when, for example, an adapter (dummy battery) 93 (see FIG. 9) is used, similar to the fastening tool 103 (see FIG. 16) of the third embodiment.

[Sixth Embodiment]
Hereinafter, the fastening tool 106 according to the sixth embodiment will be described with reference to FIG. The fastening tool 106 of the present embodiment has a different configuration of the battery housing 26 from the fastening tool 101 of the first embodiment, but other configurations are substantially the same as the fastening tool 101.

As shown in FIG. 19, the fastening tool 106 includes a main body housing 11 having the same configuration as the fastening tool 101 (see FIG. 3), a nose 13, a handle 151, and a hand guard 157. Further, the fastening tool 106 includes a battery housing 26 that connects to the lower end of the handle 151 and the hand guard 157.

The battery housing 26 in the present embodiment is a rectangular box-shaped hollow body whose rear surface side is open and is long in the vertical direction, and has an upper wall 261 and a bottom wall 262, a pair of left and right side walls 263, and a front wall (not shown). Have. The internal space of the battery housing 26 defined by these walls is divided into two spaces, an upper side and a lower side, by a partition wall 265.

The battery housing 26 includes two battery mounting portions 211 arranged in the vertical direction. More specifically, the two battery mounting portions 211 are provided at the lower end portion of the upper wall 261 and the lower end portion of the partition wall 265. Similar to the fastening tool 105 of the fifth embodiment, the pair of guide rails 212 of one battery mounting portion 211 and the pair of guide rails 212 of the other battery mounting portion 211 are separated from each other on different surfaces (2 separated in the vertical direction). On one side). In the front-rear direction, the two battery mounting portions 211 are located within the range from the front end to the rear end of the main body housing 11.

The attachment / detachment direction of the battery 91 with respect to the battery mounting portion 211 is the front-rear direction. The attachment / detachment direction of the battery 91 is the same for the two battery mounting portions 211. More specifically, each battery mounting portion 211 is configured to be mountable by sliding the battery 91 from the rear side to the front side with respect to the battery mounting portion 211, and is removable by sliding in the opposite direction. .. The front side of the battery housing 26 may be opened so that the battery 91 can be mounted from the front side to the rear side.

The battery 91 mounted on the battery mounting portion 211 is arranged in the space above and below the partition wall 265, respectively, and is covered with a bottom wall 262, a pair of left and right side walls 263, and a front wall. Although the rear surface side of the battery housing 26 is open, the length of the battery housing 26 in the front-rear direction is set to be larger than the length of the battery 91. Therefore, the entire battery 91 is arranged in the space. With such a configuration, in the present embodiment, the upper wall 261 and the bottom wall 262, the pair of left and right side walls 263, and the front wall serve as a battery guard that effectively protects the battery 91 from external forces from the front, side, and bottom. Function.

As described above, in the fastening tool 106 of the present embodiment, the two battery mounting portions 211 are provided side by side in the vertical direction, and the battery 91 is detachable in the front-rear direction. Therefore, the fastening tool 106 is suppressed from being enlarged in the front-rear direction as compared with the case where the two battery mounting portions 211 are arranged in the front-rear direction. Further, as compared with the case where the two battery mounting portions 211 are arranged in the left-right direction, the increase in size in the left-right direction is suppressed.

[7th Embodiment]
Hereinafter, the fastening tool 107 according to the seventh embodiment will be described with reference to FIG. 20. The fastening tool 107 of the present embodiment has a different configuration of the battery housing 27 from the fastening tool 101 of the first embodiment, but other configurations are substantially the same as the fastening tool 101.

As shown in FIG. 20, the fastening tool 107 includes a main body housing 11 having the same configuration as the fastening tool 101 (see FIG. 2), a nose 13, a handle 151, and a hand guard 157. Further, the fastening tool 107 includes a battery housing 27 that connects to the lower ends of the handle 151 and the hand guard 157.

The battery housing 27 is a hollow body having a substantially rectangular box shape that is long in the front-rear direction. However, the battery housing 27 is shorter in the front-rear direction than the battery housing 21 (see FIG. 2) of the first embodiment. The battery housing 27 houses the controller 17 (see FIG. 6). Further, the battery housing 27 includes two battery mounting portions 211.

One of the two battery mounting portions 211 is provided at the lower end of the battery housing 27, and the other is provided at the rear end of the battery housing 27. The two battery mounting portions 211 are located within the range from the front end to the rear end of the main body housing 11 in the front-rear direction.

The battery mounting portion 211 at the lower end of the battery housing 27 can be mounted by sliding the battery 91 from the front side to the rear side with respect to the battery mounting portion 211, and can be removed by sliding it in the opposite direction. There is. On the other hand, the battery mounting portion 211 at the rear end of the battery housing 27 can be mounted by sliding the battery 91 from the lower side to the upper side with respect to the battery mounting portion 211, and can be removed by sliding in the opposite direction. It is configured. However, the battery mounting portion 211 at the rear end of the battery housing 27 may be mounted by sliding the battery 91 from the upper side to the lower side with respect to the battery mounting portion 211, contrary to this example.

As described above, in the fastening tool 107 of the present embodiment, the two battery mounting portions 211 are provided at the lower end portion and the rear end portion of the battery housing 27 (not provided side by side), and the batteries for each are provided. The attachment / detachment direction of 91 is also different. However, as compared with the case where the two battery mounting portions 211 are arranged in the front-rear direction, the size of the two battery mounting portions 211 as a whole is suppressed in the front-rear direction. Further, as compared with the case where the two battery mounting portions 211 are arranged in the left-right direction, the increase in size in the left-right direction is suppressed.

[8th Embodiment]
Hereinafter, the fastening tool 108 according to the eighth embodiment will be described with reference to FIG. 21. The fastening tool 108 of the present embodiment has a different configuration of the battery housing 28 and the hand guard 158 from the fastening tool 101 of the first embodiment, but other configurations are substantially the same as the fastening tool 101.

As shown in FIG. 21, the fastening tool 108 includes a main body housing 11 having the same configuration as the fastening tool 101 (see FIG. 3), a nose 13, and a handle 151. Further, the fastening tool 108 includes a hand guard 158 extending in the vertical direction in front of the handle 151, and a battery housing 28 connected to the lower end of the handle 151.

The battery housing 28 is a hollow body having a substantially rectangular box shape that is long in the front-rear direction. However, compared to the battery housing 21 of the first embodiment (see FIG. 2), the battery housing 28 is significantly shorter in the front-rear direction, and the length of the battery housing 28 is about the same as the length of the battery 91. The battery housing 28 houses the controller 17 (see FIG. 6).

The two battery mounting portions 211 are provided in the hand guard 158 and the battery housing 28, respectively. More specifically, one of the battery mounting portions 211 is provided on the front surface side of the hand guard 158, and the other is provided on the lower end portion of the battery housing 28. The battery mounting portion 211 of the hand guard 158 can be mounted by sliding the battery 91 from the upper side to the lower side with respect to the battery mounting portion 211, and can be removed by sliding it in the opposite direction. The battery mounting portion 211 of the battery housing 28 is configured to be mountable by sliding the battery 91 from the rear side to the front side with respect to the battery mounting portion 211, and is removable by sliding in the opposite direction. The mounting direction of the battery 91 with respect to each battery mounting portion 211 may be the opposite direction to this example.

As described above, in the fastening tool 108 of the present embodiment, the two battery mounting portions 211 are provided on the lower end portion of the battery housing 27 and the front side of the hand guard 158 (not provided side by side). The attachment / detachment direction of the battery 91 with respect to each is also different. However, as compared with the case where the two battery mounting portions 211 are arranged in the front-rear direction, the size of the two battery mounting portions 211 as a whole is suppressed in the front-rear direction. Further, as compared with the case where the two battery mounting portions 211 are arranged in the left-right direction, the size of the two battery mounting portions 211 as a whole in the left-right direction is suppressed. Further, by arranging one of the battery mounting portions 211 on the front side of the hand guard 158, the battery 91 is arranged by utilizing the empty space below the nose 13 while minimizing the size of the battery housing 28. be able to.

The correspondence between each component of the above embodiment and each component of the present invention is shown below. However, each component of the embodiment is merely an example, and does not limit each component of the present invention. Each of the fastening tools 101 to 108 is an example of a "fastening tool". The fastener 8, the pin 81, and the collar 85 are examples of the “fastener”, the “pin”, and the “cylindrical portion”, respectively. The anvil 371 and the pin grip 373 are examples of the "anvil" and the "pin grip", respectively. The drive shaft A1 is an example of a “drive shaft”. The motor 4 is an example of a "motor". The drive mechanism 3 is an example of a “drive mechanism”. The main body housing 11 is an example of a “housing”. The handle 151 is an example of a "handle". The battery mounting unit 211 is an example of a “battery mounting unit”. The battery guard 217 is an example of a “battery protection unit”. The controller 17 is an example of a “control unit”. The operation unit 176 is an example of the “operation unit”. The central axis A3 is an example of a "rotational axis".

The above-described embodiment is merely an example, and the fastening tool according to the present invention is not limited to the configurations of the illustrated fastening tools 101 to 108. For example, the changes illustrated below can be made. It should be noted that only one or a plurality of these modifications can be adopted in combination with each of the fastening tools 101 to 108 shown in the embodiment or the invention described in each claim.

For example, each of the fastening tools 101 to 108 can selectively use a plurality of types of a plurality of member crimping type fasteners by exchanging the nose assembly 37. In addition, fastening tools 101-108 may be able to use known fasteners of the type referred to as blind rivets (or rivets) by replacing the nose assembly 37. The blind rivet is composed of an integrally formed pin and a tubular portion (also referred to as a sleeve or a rivet body). In the blind rivet, the pin tail is torn off in the fastening process as in the tear-off type multi-member crimping type fastener.

Further, the fastening tools 101 to 108 are dedicated machines corresponding to only one of the tear-off type multi-member crimping type fastener, the shaft maintenance type multi-member crimping type fastener, and the blind rivet. You may. In the dedicated machine, the configuration of the main body housing 11 and the drive mechanism 3 and the control mode by the control circuit 171 can be appropriately changed according to the type of each fastener. For example, in a dedicated machine for a shaft maintenance type multi-member crimping type fastener, a pin tail is not generated, so that a pin tail passage or a collection container 115 formed on a screw shaft 356 or the like is unnecessary.

The configuration of the nose assembly 37 and the nose adapter 131 may be changed as appropriate. For example, the shape of the anvil 371 and the mode of connection to the main body housing 11 via the nose adapter 131 may be changed. The pin gripping portion 373 may be configured so that the gripping force with respect to the pin changes as a plurality of claws move in the radial direction in conjunction with the relative movement in the front-rear direction with respect to the anvil 371. The shape and number of the screws, the mode of connection with the screw shaft 356, and the like may be changed as appropriate.

The configuration and arrangement of the motor 4, the drive mechanism 3, the operation unit 176, and the controller 17 may be changed as appropriate. The shapes of the main body housing 11, the handle 151, the hand guards 157, 158, etc. may be changed as appropriate according to or regardless of such changes. The hand guard 157 may be omitted.

As the motor 4, a motor with a brush may be adopted instead of the brushless motor. The motor 4 may be arranged so that the rotation shaft A2 of the motor shaft 43 intersects the drive shaft A1.

In the drive mechanism 3, instead of the ball screw mechanism 35, a feed screw mechanism including a nut having a female screw formed on the inner peripheral portion and a screw shaft having a male screw formed on the outer peripheral portion and directly screwed to the nut. May be adopted. Further, in the ball screw mechanism 35, the screw shaft 356 is restricted from moving in the front-rear direction and is rotatably supported around the drive shaft A1, while the nut 351 is moved in the front-rear direction as the screw shaft 356 rotates. It may be configured to move. In this case, the pin grip portion 373 may be directly or indirectly connected to the nut 351 as the final output shaft.

The idle gear 331 arranged between the nut drive gear 311 of the first intermediate shaft 31 and the driven gear 352 of the nut 351 may be omitted, and the nut drive gear 311 and the driven gear 352 may be meshed with each other. Gear may intervene.

The number of stages of the planetary speed reducer 30 (that is, the number of planetary gear mechanisms included in the planetary speed reducer 30) and the configuration of the planetary gear mechanism of each stage may be changed as appropriate. For example, the planetary reducer 30 may include two or more planetary gear mechanisms. Further, instead of the planetary reduction gear 30, a gear reduction gear including a gear train other than the planetary gear mechanism (gear trains such as spur gears, helical gears, and bevel gears) may be arranged between the motor 4 and the ball screw mechanism 35.

The input device for inputting the information for specifying the operation mode is not limited to the push button type switch of the operation unit 176, and may be, for example, a slide type switch, a rotary dial, or a touch panel. The information input from the operation unit 176 is not limited to the information related to the operation mode. For example, it may be information on the type of fastener and / or working material, desired tensile force, moving speed (tensile speed) of screw shaft 356, environmental temperature, and the like.

The controller 17 may be housed in the body housing 11 instead of the battery housings 21-28. Further, in the above embodiment, an example in which the control circuit 171 of the controller 17 is configured by a microcomputer including a CPU and the like is given. However, the control circuit 171 may be composed of a programmable logic device such as an ASIC (Application Specific Integrated Circuits) or an FPGA (Field Programmable Gate Array). Further, the plurality of control circuits may perform distributed processing of the operation control of the fastening tools 101 to 108.

The configuration, arrangement, and number of battery mounting portions 211 (that is, the number of batteries 91 that can be mounted) are not limited to those exemplified in the above embodiment. Further, the shape and dimensions of the battery 91 can be changed as appropriate. The following is an example of modifications that can be adopted with respect to the battery mounting portion 211.

For example, in the above embodiment, the battery mounting portion 211 is provided with a guide rail 212 that can be slidably engaged with the guide groove 911 of the battery 91. On the contrary, the battery mounting portion 211 may be provided with a guide groove, and the battery 91 may be provided with a guide rail. Further, for example, one of the battery mounting portion 211 and the battery 91 may be provided with a protruding portion that protrudes linearly, and the other may be provided with a recess that can be fitted to the protruding portion. In this case, the protruding direction of the protruding portion defines the attachment / detachment direction of the battery 91.

The locking recess 213 (and the hook 913 of the battery 91) of the battery mounting portion 211 may be omitted, or may be provided with another configuration that restricts the movement of the battery 91 in the disengaging direction. For example, a stopper that can move between a position that protrudes from the battery housings 21 to 28 and abuts on the battery 91 in the direction in which the battery 91 comes off and a position that is housed in the battery housings 21 to 28 may be provided. ..

The number of battery mounting portions 211 may be three or more. In this case, all battery mounting portions 211 may be arranged in the same direction (that is, arranged in a straight line), only some battery mounting portions 211 may be arranged in the same direction, or all battery mounting portions 211 may be arranged in the same direction. The portions 211 may be arranged so as not to line up in the same direction. Further, the attachment / detachment direction of the battery 91 with respect to each of the plurality of battery mounting portions 211 may be the same, all may be different, or only a part may be the same.

At least one of the plurality of battery mounting portions 211 may be provided in the main body housing 11 (for example, the left end portion and / or the right end portion or the upper end portion of the main body housing 11). Then, at least one of the plurality of battery mounting portions 211 may be provided in the battery housings 21 to 28 and / or the hand guard 157.

In the fastening tool 102 of the second embodiment, the battery housing 22 is configured to be rotatable around a central axis A3 extending substantially in the vertical direction with respect to the main body housing 11. However, the battery housing 22 may be rotatably configured around a rotation axis extending in another direction (eg, front-back direction, left-right direction).

The configuration for rotatably supporting the battery housing 22 is not limited to the support portion 20, the shaft portion 221 and the locking portion 223. The configuration for locking the battery housing 22 at a plurality of positions in the circumferential direction is also not limited to the locking recesses 202 and 203 and the locking projection 224. For example, the user may lock the battery housing 22 in a desired position by rotating the battery housing 22 with respect to the body housing 11 and fitting screws and pins into appropriate locking holes.

In the fastening tools 101 to 103 of the first to third embodiments, a part of the battery housings 21 to 23 is configured as a battery guard 217. However, the battery guard 217 may be configured as a separate member from the battery housings 21-23 and may be connected to the battery guard 217. The battery guard 217 may be provided in one or three or more, or may be omitted. Further, the shape and arrangement of the battery guard 217 can be changed as appropriate. An appropriately modified battery guard 217 may be provided on any of the fastening tools 104 to 108 of the fourth to eighth embodiments.

Further, in view of the gist of the present invention and the above embodiments, the following aspects are constructed. At least one of the following embodiments may be employed in combination with the above embodiments and variations thereof, and one or more of the inventions described in each claim.
[Aspect 1]
Each of the plurality of battery mounting portions is configured such that the length in the attachment / detachment direction of the battery is larger than the length in the direction intersecting the attachment / detachment direction.
[Aspect 2]
Each of the plurality of battery mounting portions includes a first engaging portion configured to engage a second engaging portion provided on the battery.
The guide rail 212 and the guide groove are examples of the "first engaging portion" and the "second engaging portion", respectively.
[Aspect 3]
The first engaging portion is a rail or groove extending linearly, and is configured to slide engage with the linear groove or rail provided in the battery as the second engaging portion. There is.
The guide rail 212 and the guide groove are examples of "rail" and "groove", respectively.
[Aspect 4]
The first engaging portion of each of the plurality of battery mounting portions extends parallel to each other.
[Aspect 5]
The first engaging portions of the plurality of battery mounting portions are arranged on the same surface.
[Aspect 6]
The battery has a substantially rectangular parallelepiped shape with length, width and thickness.
Of the length, the width, and the thickness, the length is the largest.
The battery is configured to be moved in the longitudinal direction with respect to the battery mounting portion and mounted on the battery.
[Aspect 7]
The battery is mounted on the battery mounting portion in a direction in which the length direction of the battery coincides with the left-right direction.
[Aspect 8]
Each of the plurality of battery mounting portions has a linear rail or groove extending in the left-right direction.
The battery has a linear groove or rail extending in the length direction.
[Aspect 9]
The length of the battery is less than twice the width.

[Aspect 10]
The plurality of battery mounting portions are arranged within a range from the front end to the rear end of the housing in the front-rear direction.
[Aspect 11]
The motor includes a motor body including a stator and a rotor, and a motor shaft that rotates integrally with the rotor.
The drive mechanism includes a gear reducer and a transmission shaft arranged coaxially with the motor shaft on the front side of the motor main body, and the gear reducer increases the torque input from the motor shaft. It is configured to output to the transmission shaft.
The control unit is arranged on a straight line passing through the gear reducer and the steering wheel orthogonal to the drive shaft.
The motor body 41 and the motor shaft 43 are examples of the “motor body” and the “motor shaft”, respectively. The planetary reducer 30 and the first intermediate shaft 31 are examples of a "gear reducer" and a "transmission shaft", respectively.
[Aspect 12]
In aspect 11,
Of the two battery mounting portions, the rear battery mounting portion is arranged on a straight line orthogonal to the drive shaft and passing through the axial center of the motor main body portion.
[Aspect 13]
In aspect 11 or 12,
Of the two battery mounting portions, the front battery mounting portion is arranged on a straight line orthogonal to the drive shaft and passing through the axial center of the gear provided on the transmission shaft.
The nut drive gear 311 is an example of a “gear provided on the transmission shaft”.
[Aspect 14]
In any one of aspects 11 to 13,
The drive mechanism is connected to a nut rotated by the gear of the transmission shaft and the pin grip portion, and is configured to move in the front-rear direction along the drive shaft with the rotation of the nut. Including screw shaft
The screw shaft extends parallel to the transmission shaft above the transmission shaft.
The nut 351 and the screw shaft 356 are examples of the "nut" and the "screw shaft", respectively.
[Aspect 15]
The plurality of battery mounting portions are arranged on the rear side with respect to the anvil in the front-rear direction.

[Aspect 16]
The plurality of battery mounting portions are provided side by side in the first direction.
The axis of rotation extends in a direction orthogonal to the first direction.
[Aspect 17]
In aspect 16,
Each of the plurality of battery mounting portions is configured so that the battery can be mounted in a second direction orthogonal to the first direction.
The axis of rotation extends in a direction orthogonal to the first direction and the second direction.
[Aspect 18]
In aspect 16 or 17,
The rotation axis extends in a direction orthogonal to the drive axis.
[Aspect 19]
In any one of aspects 16-18,
The at least one battery protection unit includes two battery protection units arranged on both sides of the plurality of battery mounting units in the first direction.

[Aspect 20]
Further comprising a lower housing coupled to the lower end of the handle and having the plurality of battery mounts.
The at least one battery protection unit is configured as a part of the lower housing or a member connected to the lower housing.
Each of the battery housings 21-23 is an example of a "lower housing".
[Aspect 21]
The at least one battery protection unit is configured as at least one projecting portion that projects downward from the plurality of battery mounting portions.
[Aspect 22]
Each of the plurality of battery mounting portions is configured so that a part of the battery is exposed to the lower side when the battery is mounted.
Each of the at least one battery protection section extends downward to at least the same position as the lower end of the battery located closest to each of the plurality of battery mounting sections when the battery is mounted.

101, 102, 103, 104, 105, 106, 107, 108: Fastening tool, 11: Body housing, 113: Opening, 131: Nose adapter, 132: Connecting member, 133: Sleeve, 134: Fixing ring, 115: Collection container, 13: nose, 151: handle, 157, 158: hand guard, 161: trigger, 162: switch, 17: controller, 171: control circuit, 176: operation part, 20: support part, 201: support hole, 202: Locking recess, 203: Locking recess, 21, 22, 23, 24, 25, 26, 27, 28: Battery housing, 211: Battery mounting part, 212: Guide rail, 213: Locking recess, 214: Terminals, 217: Battery guards, 218: Ribs, 221: Shafts, 223: Locking parts, 224: Locking protrusions, 226: Spring members, 261: Upper wall, 62: Bottom wall, 263: Side walls, 265: Partitions Wall 3: Drive mechanism, 30: Planetary reducer, 31: 1st intermediate shaft, 311: Nut drive gear, 33: 2nd intermediate shaft, 331: Idle gear, 35: Ball screw mechanism, 351: Nut, 352: Driven Gear, 355: Drive shaft, 356: Screw shaft, 357: Extension shaft, 37: Nose assembly, 371: Anvil, 373: Pin grip, 4: Motor, 41: Motor body, 43: Motor shaft, 47: Fan, 48: Solvent, 8: Fastener, 81: Pin, 85: Collar, 91: Battery, 93: Adapter, 811: Shaft, 815: Head, 910: Case, 911: Guide groove, 913: Hook, 915: Button, 917: Terminal, 931: Main unit, 933: Connection cord, A1: Drive shaft, A2: Rotating shaft, A3: Central shaft, W: Working material

Claims (8)

A fastening tool configured to fasten a work material via a fastener provided with a pin and a tubular portion.
An anvil extending along a drive shaft that defines the front-rear direction of the fastening tool and having a front end portion that is configured to come into contact with the tubular portion of the fastener.
A pin gripping portion that is configured to grip the pin and is movably held along the drive shaft with respect to the anvil.
With the motor
A drive mechanism configured to move the pin grip portion in the front-rear direction with respect to the anvil by the power of the motor.
A housing that holds the anvil and houses at least a part of the drive mechanism and the motor.
A long handle that is connected to the housing and gripped by the user,
A fastening tool including a plurality of battery mounting portions, each of which is configured to be detachable from a battery for supplying electric power to the motor. The fastening tool according to claim 1.
The handle projects from the housing in a direction intersecting the drive shaft.
The direction orthogonal to the drive shaft and corresponding to the extending direction of the handle is defined as the vertical direction of the fastening tool, and the direction in which the handle protrudes from the housing in the vertical direction is defined as the downward direction. In the case, the plurality of battery mounting portions are arranged below the handle.
When the directions orthogonal to the front-rear direction and the up-down direction are defined as the left-right directions of the fastening tool, each of the plurality of battery mounting portions is characterized in that the battery is detachable in the left-right direction. Fastening tool. The fastening tool according to claim 2.
A fastening tool characterized in that the plurality of battery mounting portions are provided side by side in the front-rear direction and are configured so that the mounting directions of the batteries with respect to each of the plurality of battery mounting portions are the same. .. The fastening tool according to any one of claims 1 to 3.
When a plurality of batteries are mounted on the plurality of battery mounting portions, at least one battery protection portion configured to protect at least a part of the plurality of batteries from an external force is further provided. Fastening tool. The fastening tool according to any one of claims 1 to 4.
Further, a control unit configured to control the operation of the fastening tool is provided.
The handle projects from the housing in a direction intersecting the drive shaft.
The direction orthogonal to the drive shaft and corresponding to the extending direction of the handle is defined as the vertical direction of the fastening tool, and the direction in which the handle protrudes from the housing in the vertical direction is defined as the downward direction. If,
The plurality of battery mounting portions are two battery mounting portions provided side by side in the crossing direction intersecting the vertical direction on the lower side with respect to the handle.
The control unit is at least partially overlapped with both of the two battery mounting portions in the crossing direction, and is further arranged directly below the handle and above the two battery mounting portions. A fastening tool characterized by that. The fastening tool according to any one of claims 1 to 5.
It is further equipped with an operation unit that is configured to allow external operations by the user.
A fastening tool characterized in that the operating portion is arranged on the rear side with respect to the handle. The fastening tool according to claim 6.
The handle projects from the housing in a direction intersecting the drive shaft.
The direction orthogonal to the drive shaft and corresponding to the extending direction of the handle is defined as the vertical direction of the fastening tool, and the direction in which the handle protrudes from the housing in the vertical direction is defined as the downward direction. If,
The fastening tool is characterized in that the operating portion is arranged so that it can be operated from above. The fastening tool according to any one of claims 1 to 7.
When a plurality of batteries are mounted on the plurality of battery mounting portions, at least one battery protection portion configured to protect at least a part of the plurality of batteries from an external force is further provided.
A fastening tool, wherein the plurality of battery mounting portions and the at least one battery protection portion are configured to be integrally rotatable around a rotation axis with respect to the housing.

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