JP7275083B2 - Terminal attaching/detaching device - Google Patents

Description

The present invention relates to a terminal attaching/detaching device for attaching/detaching a crimped terminal of a cable to/from a conductive member such as a bus bar.

Electrical installations such as switchboards and distribution boards are equipped with terminal blocks that are connected to crimp terminals at the ends of cables. Conventionally, a terminal block is configured such that a bolt is inserted into a groove of a round terminal or a Y terminal, which is a crimp terminal, and the crimp terminal is screwed with a predetermined torque.

For example, the terminal connection device described in Patent Document 1 below includes a terminal block main body having a partition wall and a support base, a terminal plate positioned above the support base, and a lead wire positioned on the terminal plate fixed or separated. a movable terminal which is supported by a spring and has an extension formed on one side thereof to prevent the lead wire from coming off or falling off; a terminal screw fastened to the threaded hole of the

JP-A-2001-52776

However, electrical equipment such as switchboards and distribution boards are provided with a large number of terminal blocks for connecting a large number of cables. Therefore, it takes a lot of time and effort for an operator of electrical equipment to install screws for many cables and perform maintenance and inspection work for many terminal blocks. In addition, when the bolt is screwed, there is a risk that the screw will become loose, and furthermore, the looseness of the screw may cause an accident such as a fire.

SUMMARY OF THE INVENTION An object of the present invention is to more reliably connect a crimp terminal to a conductive member of a terminal block with a simple operation.

In order to solve the above-mentioned problems, the terminal attaching/detaching device of the present invention includes: a pressing member that presses a terminal facing a conductive member in a pressing direction toward the conductive member; a holding member that holds the pressing member; and the pressing member includes: a first accommodating portion that accommodates a projecting portion projecting from the conductive member in a direction opposite to the pressing direction and penetrating the groove portion of the terminal; and a movable portion supported movably in the radial direction of the first accommodating portion, and when the holding member presses the movable portion, the movable portion moves from the outer side to the inner side in the radial direction. and engages with the projecting portion.

Further, in the terminal attaching/detaching device of the present invention, the projecting portion includes a head portion provided at an end portion on the side opposite to the pressure direction, and a head portion provided on the pressure direction side of the head portion. and a neck portion having a smaller outer diameter, and when the movable portion moves from the outer side to the inner side in the radial direction, the movable portion presses the head portion of the projection portion in the first receiving portion, and the head portion moves from the head portion to the head portion. The pressing member receives a reaction force in the pressing direction and presses the pressing member in the pressing direction, the pressing member has a pressing surface for pressing the terminal on the pressing direction side, and When pressed in the pressing direction, it is preferable to press the terminal in the pressing direction.

Further, in the terminal attaching/detaching device of the present invention, the head portion has a first tapered portion whose diameter gradually decreases in the pressure direction, and the first tapered portion faces the terminal. The movable portion is inclined at an angle smaller than 45 degrees with respect to the mounting surface of the conductive member, and the movable portion presses the first tapered portion of the head portion when moving from the outer side to the inner side in the radial direction. Preferably, the pressing member is pressed in the pressing direction by receiving a reaction force in the pressing direction from the first tapered portion.

Further, in the terminal attaching/detaching device of the present invention, the movable portion is formed in a spherical shape and is supported in a state of being exposed to the outside in the radial direction from the outer peripheral surface of the pressure member, and the holding member includes the a second accommodation portion accommodating the pressure member on the pressure direction side, the holding member being movable in the pressure direction with the pressure member accommodated in the second accommodation portion; The second accommodating portion has a second tapered portion on the inner peripheral surface that gradually expands in diameter in the pressurizing direction. It is preferable that the second tapered portion of the peripheral surface presses the movable portion from the outer side to the inner side in the radial direction.

Furthermore, in the terminal attaching/detaching device of the present invention, the second taper portion may be inclined at an angle smaller than 45 degrees with respect to the pressurizing direction.

The terminal attaching/detaching device of the present invention may further include an operating member for operating the holding member to move in the direction of pressure or in a direction opposite to the direction of pressure, wherein the operating member is configured to move the holding member as described above. It is preferable that the moving distance in the pressurizing direction can be adjusted.

Further, the terminal attaching/detaching device of the present invention includes the projecting portion that is inserted into the through hole formed in the conductive member from the pressure direction side toward the side opposite to the pressure direction. good.

ADVANTAGE OF THE INVENTION According to this invention, a crimp terminal can be more reliably connected to the electrically-conductive member of a terminal block by simple operation|work.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the terminal attaching/detaching apparatus of embodiment of this invention with an electrically-conductive member and a crimp terminal. 1 is a perspective view showing a terminal attaching/detaching device according to an embodiment of the present invention together with a crimp terminal engaged with a conductive member; FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a terminal attaching/detaching device according to an embodiment of the present invention in a state in which a crimp terminal is engaged with a conductive member and in a state in which pressure on the crimp terminal is released; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a terminal attaching/detaching device according to an embodiment of the present invention in a state in which a conductive member is engaged with a crimp terminal, and in a state in which pressure is applied to the crimp terminal; It is a side view which shows the terminal attachment or detachment apparatus of embodiment of this invention. FIG. 6 is a cross-sectional view showing the terminal attaching/detaching device viewed from the direction of arrows VI-VI in FIG. 5; 1 is an exploded perspective view showing a terminal attaching/detaching device according to an embodiment of the present invention; FIG. FIG. 4 is a rear perspective view of a pressure member in the terminal attaching/detaching device according to the embodiment of the present invention; It is a side view which shows the pressurizing member in the terminal attaching/detaching apparatus of embodiment of this invention. FIG. 10 is a cross-sectional view showing the pressure member viewed from the direction of arrows XX in FIG. 9; FIG. 10 is a cross-sectional view showing the pressure member as seen from the direction of arrows XI-XI in FIG. 9; FIG. 4 is a bottom view showing the terminal attaching/detaching device in a state in which it is engaged with a conductive member and a crimp terminal and in a released state in the embodiment of the present invention; FIG. 13 is a cross-sectional view showing the terminal attaching/detaching device together with the conductive member and the crimp terminal as viewed in the direction of arrows XIII-XIII in FIG. 12; FIG. 4 is a bottom view showing the terminal attaching/detaching device in a state of being engaged with a conductive member and a crimp terminal and in a pressurized state in the embodiment of the present invention; FIG. 15 is a cross-sectional view showing the terminal attaching/detaching device together with the conductive member and the crimp terminal as viewed in the direction of arrows XV-XV in FIG. 14;

A terminal attaching/detaching device 1 according to an embodiment of the present invention will be described with reference to the drawings. For convenience of explanation, when describing the directions of up (U), down (D), front (F), rear (B), left (L), or right (R) in the embodiments of the present invention, Follow the arrows depicted in FIGS. 1-15.

A terminal attaching/detaching device 1 is a device for attaching or detaching a crimp terminal 3 to or from a conductive member 2 . In this embodiment, the conductive member 2 is mounted on a terminal block (not shown) with the mounting surface 16 for the crimp terminal 3 facing forward, that is, facing the front of the operator. , the front-rear direction and the left-right direction, the terminal attaching/detaching device 1, the conductive member 2, and the crimp terminal 3 will be described. In this embodiment, the attachment direction for attaching the crimp terminal 3 to the conductive member 2 is backward, and the pressing direction in which the terminal attaching/detaching device 1 presses the crimp terminal 3 to the conductive member 2 is also backward. Further, the removal direction for removing the crimp terminal 3 from the conductive member 2 is the front, and the release direction for releasing the pressure applied to the crimp terminal 3 by the terminal attaching/detaching device 1 is also the front opposite to the pressing direction.

FIG. 1 is a perspective view showing a terminal attaching/detaching device 1 together with a conductive member 2 and a crimp terminal 3. FIG. FIG. 2 is a perspective view showing the terminal attaching/detaching device 1 together with the crimp terminal 3 engaged with the conductive member 2. FIG. FIG. 3 is a perspective view showing the terminal attaching/detaching device 1 in a state in which the crimp terminal 3 is engaged with the conductive member 2 and in a state in which the pressure applied to the crimp terminal 3 is released. FIG. 4 is a perspective view showing the terminal attaching/detaching device 1 in a state where the crimp terminal 3 is engaged with the conductive member 2 and the crimp terminal 3 is pressed.

First, the conductive member 2 will be described. The conductive member 2 is composed of a flat plate-shaped bus bar or the like. The conductive member 2 is attached to a terminal block (not shown) provided in electrical equipment such as a switchboard or a distribution board, with the attachment surface 16 for the crimp terminal 3 facing forward. As shown in FIGS. 1 and 2, the conductive member 2 has a protruding portion 10 protruding forward from a front mounting surface 16 .

The protruding portion 10 engages with the terminal attaching/detaching device 1 and the crimping terminal 3, is composed of a clamp pin or the like, and is formed, for example, in a substantially columnar shape. The projecting portion 10 may be formed separately from the conductive member 2 and inserted from the rear side toward the front side through a through hole 11 formed in the conductive member 2 , or may be integrated with the conductive member 2 . may be formed intentionally.

The projecting portion 10 includes a body portion 12 extending forward from the conductive member 2, a head portion 13 provided at the front end portion, and a neck portion 14 provided behind the head portion 13 and having an outer diameter smaller than that of the head portion 13. have. Head 13 may have the same outer diameter as body 12 or may have a larger outer diameter than body 12 . The rear end of the head portion 13 continues to the neck portion 14 while gradually decreasing in diameter toward the rear, that is, has a cross-sectional shape that is inclined toward the radial center of the projecting portion 10 and has a first taper. A part 15 is configured (see FIG. 13, FIG. 15, etc.). For example, the first tapered portion 15 is preferably inclined at an angle smaller than 45 degrees with respect to the mounting surface 16 of the conductive member 2. In other words, the angle larger than 45 degrees with respect to the pressing direction. is formed with an inclination at The front end of the trunk portion 12 may also have a cross-sectional shape that is continuous with the neck portion 14 while gradually decreasing in diameter toward the front and that is inclined toward the center in the vertical direction.

Next, the crimp terminal 3 will be described. The crimp terminal 3 is a terminal crimped to the tip of the cable 20 . The crimp terminal 3 has a flat plate portion 21 sandwiched between the terminal attaching/detaching device 1 and the conductive member 2, and a groove portion 22 formed in the flat plate portion 21 and engaged with the projecting portion 10 of the conductive member 2, For example, it is composed of a round terminal, a Y terminal, or the like.

Next, the terminal attaching/detaching device 1 will be described. The terminal attaching/detaching device 1 is a device that presses the crimp terminal 3 against the conductive member 2 to attach the crimp terminal 3 while being pressed against the conductive member 2 .

FIG. 5 is a side view showing the terminal attaching/detaching device 1. FIG. 6 is a cross-sectional view showing the terminal attaching/detaching device viewed from the direction of arrows VI--VI in FIG. FIG. 7 is an exploded perspective view showing the terminal attaching/detaching device 1. FIG. The terminal attaching/detaching device 1 includes a pressurizing member 30 that presses the crimp terminal 3 facing the conductive member 2 in the pressurizing direction, a holding member 31 that holds the pressurizing member 30, and the pressurizing direction or release direction of the holding member 31. and an operation member 32 for operating movement to.

The pressure member 30 is a member that is formed of a material such as metal having high rigidity and that is elongated in the front-rear direction. FIG. 8 is a perspective view showing the pressure member 30 as seen from the rear. FIG. 9 is a side view showing the pressure member 30. FIG. FIG. 10 is a cross-sectional view showing the pressure member 30 viewed from the direction of arrows XX in FIG. FIG. 11 is a cross-sectional view showing the pressure member 30 viewed from the direction of arrows XI-XI in FIG. The pressure member 30 includes a cylindrical portion 40 that is long in the front-rear direction, a column portion 41 that is long in the front-rear direction, and a plurality of (for example, four) movable portions 42 .

The cylinder part 40 is formed, for example, in a cylindrical shape. The tubular portion 40 includes a first housing portion 43 that opens rearward. A rear surface of the tubular portion 40 constitutes a pressing surface 44 that presses the crimp terminal 3 toward the conductive member 2 around the first accommodating portion 43 . That is, the pressure surface 44 is formed by the edge of the first receiving portion 43 and faces the front surface of the crimp terminal 3 .

The first accommodating portion 43 is a space capable of accommodating the projecting portion 10 of the conductive member 2 , and is formed hollow up to the front portion of the cylindrical portion 40 . The first accommodating portion 43 is formed to have an inner diameter slightly larger than the outer diameter of the protruding portion 10 and, for example, is formed in a circular shape corresponding to the columnar protruding portion 10 . The radial direction of the first accommodating portion 43 is included in the radial direction of the tubular portion 40 .

In addition, a plurality of (for example, four) loose fitting holes 45 are formed in the side surface of the cylindrical portion 40, into which the plurality of movable portions 42 are loosely fitted. The plurality of loose fitting holes 45 are provided at equal intervals (for example, at intervals of 90 degrees in the circumferential direction) on the outer periphery of the cylindrical portion 40, penetrate the wall portion of the cylindrical portion 40 along the radial direction of the cylindrical portion 40, and 1 accommodation part 43 is connected.

Each loose fitting hole 45 is formed, for example, in a circular shape corresponding to each spherical movable portion 42 so as to fit and support each movable portion 42 . Each loose fitting hole 45 has a minute gap (play) at least in the vertical direction with respect to each fitted movable portion 42 , that is, each movable portion 42 is vertically movable in each loose fitting hole. It fits loosely within 45 .

Each loose fitting hole 45 is formed with substantially the same inner diameter along the radial direction of the cylindrical portion 40, and a stepped portion with a slightly reduced diameter toward the inner peripheral surface side of the cylindrical portion 40, that is, the peripheral surface side of the first accommodating portion 43. 46. A step 46 of each loose fitting hole 45 prevents each movable portion 42 from coming off toward the first accommodating portion 43 . That is, each movable portion 42 can move along the radial direction of the cylindrical portion 40 in each loose fitting hole 45 , while the step 46 restricts movement toward the inner peripheral surface of the cylindrical portion 40 .

Each loose fitting hole 45 is formed to be shorter than each movable portion 42 in the radial direction of the cylindrical portion 40, and each movable portion 42 is exposed radially outward of the cylindrical portion 40 from the outer peripheral surface of the cylindrical portion 40. It is supported by each loose fitting hole 45 in this state.

The column portion 41 is continuous with the front side of the cylindrical portion 40, and the cylindrical portion 40 and the column portion 41 are integrally formed on a central axis extending in the front-rear direction. The column portion 41 has an outer diameter smaller than that of the tubular portion 40 .

A support hole 47 for supporting the operating member 32 is formed through the upper portion of the column portion 41 in the radial direction. The support hole 47 is formed in a circular shape, for example, for inserting a support shaft 63 (to be described later) that rotatably supports the operation member 32 .

The front surface of the cylindrical portion 40 forms a shoulder portion 48 around the column portion 41 (see FIGS. 13 and 15), and the shoulder portion 48 supports a biasing member 49 that biases the holding member 31. .

The biasing member 49 is composed of a coil spring or the like wound with a diameter larger than the outer diameter of the column portion 41 and smaller than the inner diameter of the second housing portion 50 of the holding member 31 to be described later. The biasing member 49 is provided around the column portion 41 so that the front-rear direction, that is, the pressing direction and the releasing direction, are the biasing directions. The biasing member 49 is disposed with its rear end in contact with the shoulder portion 48 and its front end in contact with a support portion 53 inside the holding member 31, which will be described later. Thereby, the biasing member 49 biases the holding member 31 forward against the pressure member 30 .

A state in which the protrusion 10 of the conductive member 2 is accommodated in the first accommodation portion 43 of the pressure member 30 is a state in which the terminal attaching/detaching device 1 is engaged with the conductive member 2 . At this time, the pressure member 30 and the projecting portion 10 are coaxially arranged on the central axis extending in the front-rear direction, and when the terminal attaching/detaching device 1 does not press the conductive member 2 and the crimp terminal 3, the pressure member 30 may be rotatable about a central axis with respect to protrusion 10 .

The mounting surface 16 of the conductive member 2 faces forward, and the projecting portion 10 projects forward. , the terminal attaching/detaching device 1 is prevented from falling.

The holding member 31 is a cylindrical member made of a highly rigid material such as metal and elongated in the front-rear direction. The holding member 31 includes a second housing portion 50 that opens rearward.

The second accommodation portion 50 is a space capable of accommodating the cylindrical portion 40 of the pressure member 30 and is formed in the air up to the front portion of the holding member 31 . The second housing portion 50 is formed to have an inner diameter larger than the outer diameter of the cylindrical portion 40 , and is formed in a circular shape corresponding to the cylindrical cylindrical portion 40 , for example. The radial direction of the second accommodating portion 50 is included in the radial direction of the holding member 31 .

Except for the rear portion of the second housing portion 50, an inner peripheral surface having an inner diameter slightly larger than the outer diameter of the cylindrical portion 40 is formed, and the rear portion of the second housing portion 50 is an inner peripheral surface whose diameter gradually increases toward the rear. , that is, it has a cross-sectional shape inclined radially outward of the holding member 31 to form the second tapered portion 54 (see FIGS. 13 and 15). For example, the second tapered portion 54 is preferably inclined at an angle smaller than 45 degrees with respect to the pressing direction. is inclined at an angle smaller than 45 degrees with respect to the outer peripheral surface of the

The holding member 31 has an insertion hole 51 that opens forward. The insertion hole 51 allows the column portion 41 of the pressure member 30 to pass through, is formed in the front surface of the holding member 31 , and communicates with the second housing portion 50 . The front surface of the holding member 31 constitutes an operated surface 52 around the insertion hole 51 on which the operating member 32 acts.

The bottom surface of the holding member 31 on the front side of the second housing portion 50 forms a support portion 53 that supports the biasing member 49 in pairs with the shoulder portion 48 of the cylindrical portion 40 around the insertion hole 51 . (See FIG. 13, FIG. 15, etc.).

A state in which the column portion 41 of the pressure member 30 is inserted through the insertion hole 51 of the holding member 31 and the cylindrical portion 40 of the pressure member 30 is accommodated in the second accommodation portion 50 of the holding member 31 is a state in which the holding member 31 is pressed. This is a state in which the pressure member 30 is accommodated. At this time, the pressing member 30 and the holding member 31 are arranged coaxially on the central axis extending in the front-rear direction, and when the terminal attaching/detaching device 1 does not press the conductive member 2 and the crimp terminal 3, the holding member 31 may be rotatable about the central axis with respect to the pressure member 30 .

The operation member 32 is a member that is formed of a material such as metal having high rigidity and that is elongated in the front-rear direction. The operating member 32 is a member for operating the movement of the holding member 31 in the pressing direction or the releasing direction. The rear portion of 32 constitutes an action portion 61 that acts on the action surface 52 of the holding member 31 .

The operating member 32 is formed of, for example, a U-shaped lever with an open rear, and the gripping portion 60 is also U-shaped with an open rear. be provided. The U-shaped interval of the gripping portion 60 and the interval between the two action portions 61 are set slightly larger than the outer diameter of the column portion 41 of the pressure member 30 . In addition, two supported portions 62 supported by the holding member 31 are formed in the two acting portions 61, respectively, and each supported portion 62 is formed to penetrate in the direction connecting the two acting portions 61. be done. In addition, each supported portion 62 is preferably provided on an extension line of the grip portion 60 in the front-rear direction.

The operation member 32 is configured by inserting the column portion 41 of the pressure member 30 between the two action portions 61, coaxially arranging the two supported portions 62 and the support hole 47, and inserting the support shaft 63. , and supported by the pressure member 30 so as to be rotatable about the support shaft 63 .

Each acting portion 61 is a substantially elliptical cam projecting from the front and back of the U-shaped operation member 32 around the supported portion 62 , and rotates around the support shaft 63 . With the operating member 32 supported by the pressing member 30 , the peripheral surface of each acting portion 61 contacts the operated surface 52 of the holding member 31 . The peripheral surface of each acting portion 61 should always be in contact with the acted surface 52 regardless of the rotation of each acting portion 61 .

Each acting portion 61 has a large diameter portion 64 and a small diameter portion 65 protruding from the U-shaped front and rear surfaces of the operating member 32 , respectively, and has a releasing portion 66 between the large diameter portion 64 and the small diameter portion 65 . The operating member 32 is in a released state in which the holding member 31 is released from pressure when the holding portion 60 is extended in the front-rear direction and the release portion 66 is directed toward the operated surface 52 of the holding member 31 . At this time, the operating member 32 in the released state may be rotatable about the central axis together with the pressing member 30 with respect to the holding member 31 .

On the other hand, the operating member 32 rotates the gripping portion 60 about the support shaft 63 and extends in a direction orthogonal to the front-rear direction, and the projecting tip of the large diameter portion 64 or the small diameter portion 65 is acted upon by the holding member 31 . The state facing the surface 52 is the pressurized state in which the holding member 31 is pressurized. At this time, the operating member 32 in the pressurized state is fixed to the holding member 31 together with the pressurizing member 30, and cannot rotate about the central axis.

The length from the supported portion 62 to the releasing portion 66 is set shorter than the length from the supported portion 62 to the tip of the large diameter portion 64 or the small diameter portion 65 . The length from the supported portion 62 to the projecting tip of the large diameter portion 64 is set longer than the length from the supported portion 62 to the projecting tip of the small diameter portion 65 . The moving distance of the holding member 31 in the pressurizing direction when the projecting tip of the large diameter portion 64 is applied to the operated surface 52 is the same as the holding distance when the projecting tip of the small diameter portion 65 is applied to the operated surface 52 . It is longer than the moving distance of the member 31 in the pressurizing direction.

That is, the operating member 32 can adjust the moving distance of the holding member 31 in the pressurizing direction by switching between the large diameter portion 64 and the small diameter portion 65 and changing the length of the large diameter portion 64 and the small diameter portion 65 . , the pressure displacement (pressure force) of the pressure member 30 can be adjusted. In addition, if the operation member 32 having the action portions 61 (the large diameter portion 64 and the small diameter portion 65) of various sizes is prepared in advance, even if the operation member 32 is exchanged, the pressing direction of the holding member 31 can be changed. can be adjusted, and the pressure displacement (pressure force) of the pressure member 30 can be adjusted.

Next, the operation of attaching the crimp terminal 3 to the conductive member 2 by the terminal attaching/detaching device 1 will be described. FIG. 12 is a bottom view showing the terminal attaching/detaching device 1 in a state in which the conductive member 2 and the crimp terminal 3 are engaged and in a released state. 13 is a cross-sectional view showing the terminal attachment/detachment device 1 together with the conductive member 2 and the crimp terminal 3 as viewed in the direction of arrows XIII--XIII in FIG. FIG. 14 is a bottom view showing the terminal attaching/detaching device 1 in a state of being engaged with the conductive member 2 and the crimp terminal 3 and in a pressurized state. 15 is a cross-sectional view showing the terminal attachment/detachment device 1 together with the conductive member 2 and the crimp terminal 3 as viewed in the direction of arrows XV--XV in FIG.

First, as shown in FIG. 1, the terminal attaching/detaching device 1 and the crimp terminal 3 are removed from the conductive member 2, and then the crimp terminal 3 is engaged with the conductive member 2 as shown in FIG. . At this time, the crimp terminal 3 is brought into contact with the mounting surface 16 on the front side of the conductive member 2 , and the projecting portion 10 of the conductive member 2 is inserted into the groove portion 22 of the crimp terminal 3 and engaged.

Next, as shown in FIG. 3, the operating member 32 of the terminal attaching/detaching device 1 is put into the released state, and the terminal attaching/detaching device 1 is engaged with the projecting portion 10 of the conductive member 2 with which the crimp terminal 3 is engaged. At this time, the projecting portion 10 is accommodated in the first accommodating portion 43 of the pressure member 30 of the terminal attaching/detaching device 1 . As shown in FIGS. 12 and 13, the holding member 31 has not yet moved in the pressing direction.

Then, in a state where the terminal attaching/detaching device 1 is engaged with the conductive member 2 and the crimp terminal 3, as shown in FIG. The holding member 31 is moved in the pressing direction, as shown in FIGS.

Specifically, regarding the operation member 32 , the gripping portion 60 is rotated around the support shaft 63 to press the large diameter portion 64 or the small diameter portion 65 against the operated surface 52 of the holding member 31 to move the holding member 31 . Apply pressure in the direction of pressure (rear).

At this time, since the holding member 31 moves rearward against the biasing force of the biasing member 49 , the inner peripheral surface of the holding member 31 moves rearward along the outer peripheral surface of the tubular portion 40 of the pressure member 30 . . The second tapered portion 54 on the inner peripheral surface of the holding member 31 gradually presses the movable portions 42 exposed to the outside from the outer peripheral surface of the tubular portion 40 due to its inclination, and each movable portion 42 increases the diameter of the tubular portion 40 . direction is pushed inward. The pressing force of the holding member 31 in the pressurizing direction is increased by the wedge effect of the second tapered portion 54 and becomes a radially inward pressing force of each movable portion 42 . In the wedge effect of the second tapered portion 54, by setting the angle of the second tapered portion 54 with respect to the pressing direction to be smaller than 45 degrees, the pressing force of the holding member 31 in the pressing direction can be effectively distributed to each movable portion. 42 can be converted into a radially inward pressing force.

Each movable part 42 pushed in is exposed inside from the inner peripheral surface of the cylinder part 40 and enters the neck part 14 of the projection part 10 housed in the first housing part 43 of the pressure member 30, and the projection part 10 presses the first tapered portion 15 of the head portion 13 of the head in the opposing direction.

The protruding portion 10 is prevented from coming off from the first accommodation portion 43 by the movable portions 42 that have entered the neck portion 14, and the first tapered portion 15 is pressed in the direction opposite to the pressurizing direction. Since the first tapered portion 15 is inclined radially inwardly of the cylinder portion 40 in the pressurizing direction, each movable portion 42 receives a reaction force from the first tapered portion 15 in the pressurizing direction. As the pressing force for pushing each movable portion 42 radially inward becomes stronger, the first taper portion 15 is pressed more strongly, and the projection portion 10 is prevented from coming off. get stronger. The radially inward pressing force of each movable portion 42 is increased by the wedge effect of the first taper portion 15 and becomes a reaction force in the pressurizing direction. In the wedge effect of the first tapered portion 15, by setting the angle of the first tapered portion 15 with respect to the mounting surface 16 of the conductive member 2 to be smaller than 45 degrees, the radially inward pressing force of each movable portion 42 can be further reduced. It can be efficiently converted into a reaction force in the pressurizing direction. Since each spherical movable portion 42 has a relatively small area in contact with the first tapered portion 15, it is possible to reduce the power transmitted from the conductive member 2 and suppress heat generation.

Each movable portion 42 presses the loose fitting hole 45 supporting each movable portion 42 in the pressure direction by the reaction force in the pressure direction received from the first tapered portion 15 , whereby the pressure member 30 is pressed in the pressing direction.

Therefore, the terminal attaching/detaching device 1 with the operating member 32 in the pressurized state presses the pressurizing member 30 in the pressurizing direction toward the conductive member 2, and at the same time, pushes the projecting portion 10 of the conductive member 2 in the opposite direction to the pressurizing direction. will be drawn to. As a result, the pressure applied to the conductive member 2 by the terminal attaching/detaching device 1 becomes stronger, so that the crimp terminal 3 is sandwiched between the terminal attaching/detaching device 1 and the conductive member 2 with a stronger force. Thus, the crimp terminal 3 can be more reliably connected to the conductive member 2 by a simple operation of operating the operating member 32 .

In the terminal attaching/detaching device 1, when the operating member 32 is changed from the pressurized state to the released state, the holding member 31 receives the biasing force from the biasing member 49 and moves in the releasing direction. As a result, the pressing of the movable portions 42 by the second tapered portion 54 of the holding member 31 is released, and the reaction force from the first tapered portion 15 to the movable portions 42 is also released. Accordingly, the retaining of the projecting portion 10 by the movable portions 42 is released, and the pressure applied by the pressing member 30 is also released.

As described above, according to the present embodiment, the terminal attaching/detaching device 1 includes the pressing member 30 that presses the crimp terminal 3 facing the conductive member 2 in the pressing direction toward the conductive member 2, and the pressing member 30. and a holding member 31 for holding. The pressurizing member 30 includes a first accommodation portion 43 that accommodates the projecting portion 10 that protrudes from the conductive member 2 in the direction opposite to the pressurizing direction and penetrates the groove portion 22 of the crimp terminal 3, and is provided around the first accommodation portion 43. and a movable portion 42 supported movably in the radial direction of the first accommodating portion 43 . When the holding member 31 presses the movable portion 42 , the movable portion 42 moves radially inward from the outer side and engages with the projecting portion 10 .

Accordingly, by simply moving the holding member 31 with respect to the movable portion 42 of the pressure member 30 , the projecting portion 10 of the conductive member 2 is engaged with the movable portion 42 while being housed in the pressure member 30 . be. Since the projecting portion 10 is retained by the movable portion 42 while penetrating the groove portion 22 of the crimp terminal 3, the terminal attaching/detaching device 1 can maintain the connection between the conductive member 2 and the crimp terminal 3. Therefore, the terminal attaching/detaching device 1 can more reliably connect the crimp terminal 3 to the conductive member 2 of the terminal block with a simple operation.

Further, according to the terminal attaching/detaching device 1 according to the present embodiment, the projecting portion 10 includes the head portion 13 provided at the end portion on the side opposite to the pressure direction, and the head portion 13 provided on the pressure direction side from the head portion 13, and a neck portion 14 having a smaller outer diameter than the head portion 13 . When moving from the outside to the inside in the radial direction, the movable portion 42 presses the head portion 13 of the protruding portion 10 in the first housing portion 43 and receives a reaction force from the head portion 13 in the pressurizing direction to act as a pressurizing member. 30 is pressed in the pressing direction. The pressure member 30 has a pressure surface 44 that presses the crimp terminal 3 on the pressure direction side, and presses the crimp terminal 3 in the pressure direction when pressed in the pressure direction by the movable part 42 .

Accordingly, by simply moving the holding member 31 with respect to the movable portion 42 of the pressure member 30, the pressure member 30 is pressed in the pressure direction toward the conductive member 2, and at the same time, the projecting portion 10 of the conductive member 2 is moved. It can be drawn in the direction opposite to the pressurizing direction. Therefore, since the pressure applied to the conductive member 2 by the terminal attaching/detaching device 1 becomes stronger, the crimp terminal 3 can be sandwiched between the terminal attaching/detaching device 1 and the conductive member 2 with a stronger force. The connection to the conductive member 2 is more reliable. The pressing force applied to the conductive member 2 by the terminal attaching/detaching device 1 can be adjusted according to the configurations of the movable portion 42 and the head portion 13 .

Further, according to the terminal attaching/detaching device 1 according to the present embodiment, the head portion 13 has the first tapered portion 15 whose diameter is gradually reduced in the pressing direction, and the first tapered portion 15 is crimped. It is inclined at an angle smaller than 45 degrees with respect to the mounting surface 16 of the conductive member 2 facing the terminal 3 . When the movable portion 42 moves from the outside to the inside in the radial direction, the movable portion 42 presses the first tapered portion 15 of the head portion 13 , receives a reaction force from the first tapered portion 15 in the pressing direction, and presses the pressing member 30 . Press in the pressure direction.

As a result, the radially inward pressing force of each movable portion 42 is increased by the wedge effect of the first tapered portion 15 and becomes a reaction force in the pressurizing direction. In the wedge effect of the first tapered portion 15, by setting the angle of the first tapered portion 15 with respect to the mounting surface 16 of the conductive member 2 to be smaller than 45 degrees, the radially inward pressing force of each movable portion 42 can be further reduced. It can be efficiently converted into a reaction force in the pressurizing direction.

Further, according to the terminal attaching/detaching device 1 according to the present embodiment, the movable portion 42 is formed in a spherical shape and is supported while being exposed radially outward from the outer peripheral surface of the pressing member 30 . The holding member 31 includes a second accommodation portion 50 that accommodates the pressure member 30 on the pressure direction side. The holding member 31 can move in the pressing direction while the pressing member 30 is accommodated in the second accommodation portion 50 . The second accommodating portion 50 has a second tapered portion 54 on the inner peripheral surface that gradually expands in diameter in the pressurizing direction. As the holding member 31 moves in the pressing direction, the second tapered portion 54 of the inner peripheral surface of the second accommodation portion 50 presses the movable portion 42 from the outside in the radial direction to the inside.

Accordingly, the movable portion 42 of the pressing member 30 can be interlocked with the holding member 31 without complicating the configuration. Further, the movement of the holding member 31 with respect to the movable portion 42 can be made smoother by the second tapered portion 54 . The pressing force of the holding member 31 on the movable portion 42 , that is, the pressing force of the terminal attaching/detaching device 1 on the conductive member 2 can be adjusted according to the configuration of the second tapered portion 54 .

Further, according to the terminal attaching/detaching device 1 of the present embodiment, the second tapered portion 54 is formed to be inclined at an angle smaller than 45 degrees with respect to the pressing direction.

As a result, the pressing force of the holding member 31 in the pressurizing direction is increased by the wedge effect of the second tapered portion 54 and becomes a pressing force radially inward of each movable portion 42 . In the wedge effect of the second tapered portion 54, by setting the angle of the second tapered portion 54 with respect to the pressing direction to be smaller than 45 degrees, the pressing force of the holding member 31 in the pressing direction can be effectively distributed to each movable portion. 42 can be converted into a radially inward pressing force.

Furthermore, according to the terminal attaching/detaching device 1 of the present embodiment, the operating member 32 is further provided for operating the holding member 31 to move in the pressing direction or in the direction opposite to the pressing direction. The operation member 32 can adjust the moving distance of the holding member 31 in the pressing direction.

Accordingly, the holding member 31 can be moved with respect to the movable portion 42 of the pressing member 30 simply by providing the operating member 32 . Further, by enabling the operation member 32 to adjust the moving distance of the holding member 31, the pressing force of the holding member 31 against the movable portion 42, that is, the pressing force of the terminal attaching/detaching device 1 against the conductive member 2 can be adjusted.

In the above-described embodiment, an example in which the cylindrical portion 40 of the pressure member 30 is formed in a cylindrical shape, the column portion 41 is formed in a cylindrical shape, and the holding member 31 is formed in a cylindrical shape has been described. The invention is not limited to this example. For example, in another embodiment, the tubular portion 40 may be formed in a polygonal tube shape, the column portion 41 may be formed in a polygonal column shape, and the holding member 31 may be formed in a polygonal tube shape.

Further, in the above embodiment, an example in which the movable portion 42 of the pressing member 30 is formed in a spherical shape has been described, but the present invention is not limited to this example. For example, in other embodiments, the movable portion 42 may be formed in a roller shape.

Furthermore, in the above-described embodiment, an example in which the operation member 32 is formed of a lever rotating around the support shaft 63 inserted into the support hole 47 of the pressure member 30 has been described, but the present invention is not limited to this example. . For example, in other embodiments, the operation member 32 may be formed in a button shape that switches between a pressurized state and a released state each time it is pressed, or may be formed in another configuration.

Further, in the above-described embodiment, the operation member 32 is formed with the cam-shaped acting portion 61 having the large diameter portion 64 and the small diameter portion 65 to adjust the moving distance of the holding member 31 in the pressurizing direction. Although an example of adjusting the pressure displacement (pressure force) of the pressure member 30 has been described, the present invention is not limited to this example. For example, in other embodiments, the operating member 32 may be formed by a mechanism such as a gear that feeds the holding member 31 in multiple stages in the pressurizing direction, or may be formed by another configuration.

In the above-described embodiment, the projecting portion 10 is provided on the conductive member 2 and is a member independent of the terminal attaching/detaching device 1. However, the present invention is not limited to this example. For example, in other embodiments, the projecting portion 10 may be a member that is independent of the conductive member 2 and provided in the terminal attaching/detaching device 1 . That is, the terminal attaching/detaching device 1 includes not only the pressing member 30 , the holding member 31 and the operating member 32 , but also the projecting portion 10 . The terminal attaching/detaching device 1 having the projecting portion 10 is applied to a conductive member 2 having a through hole 11 into which the projecting portion 10 can be inserted or other grooves, or to a conductive member 2 to which the projecting portion 10 can be attached. .

Further, the present invention can be modified as appropriate within the scope not contrary to the gist or idea of the invention that can be read from the scope of claims and the entire specification, and the terminal attachment/detachment device involving such modifications is also within the scope of the technical concept of the present invention. include.

REFERENCE SIGNS LIST 1 terminal attachment/detachment device 2 conductive member 3 crimp terminal 10 projecting portion 13 head portion 14 small diameter portion 22 groove portion 30 pressure member 31 holding member 32 operating member 40 cylindrical portion 41 column portion 42 movable portion 43 first accommodating portion 50 second accommodating portion 54 second tapered portion 60 gripping portion 61 acting portion 64 large diameter portion 63 small diameter portion

Claims (7)

a pressing member that presses a terminal facing the conductive member in a pressing direction toward the conductive member;
a holding member that holds the pressure member;
the pressing member includes a first accommodating portion that accommodates a protrusion that protrudes from the conductive member in a direction opposite to the pressing direction and penetrates the groove of the terminal;
a movable part provided around the first accommodation part and supported so as to be movable in the radial direction of the first accommodation part;
The terminal attachment/detachment device, wherein when the holding member presses the movable portion, the movable portion moves from the outer side to the inner side in the radial direction to engage with the projecting portion. The projecting portion includes a head portion provided at an end portion opposite to the pressure direction, and a neck portion provided on the pressure direction side of the head portion and having an outer diameter smaller than the head portion,
When the movable portion moves from the outer side to the inner side in the radial direction, the movable portion presses the head portion of the protruding portion in the first accommodating portion, receives a reaction force from the head portion in the pressing direction, and acts as the pressing force. pressing the pressure member in the pressing direction;
The pressurizing member has a pressurizing surface for pressurizing the terminal on the pressurizing direction side, and presses the terminal in the pressurizing direction when pressed in the pressurizing direction by the movable part. The terminal attaching/detaching device according to claim 1. The head has a first tapered portion that gradually decreases in diameter in the pressurizing direction,
the first tapered portion is inclined at an angle smaller than 45 degrees with respect to the mounting surface of the conductive member facing the terminal;
When the movable portion moves from the outer side to the inner side in the radial direction, the movable portion presses the first taper portion of the head, receives a reaction force from the first taper portion in the pressing direction, and moves the pressing member. 3. The terminal attaching/detaching device according to claim 2, wherein the terminal is pressed in the pressing direction. The movable part is formed in a spherical shape and is supported in a state of being exposed to the outside in the radial direction from the outer peripheral surface of the pressure member,
The holding member includes a second accommodation portion that accommodates the pressure member on the pressure direction side,
The holding member is movable in the pressurizing direction with the pressurizing member accommodated in the second accommodating portion,
The second accommodating portion has a second tapered portion on the inner peripheral surface that gradually expands in diameter in the pressurizing direction,
The second tapered portion of the inner peripheral surface of the second accommodation portion presses the movable portion from the outside to the inside in the radial direction as the holding member moves in the pressing direction. The terminal attaching/detaching device according to any one of Items 1 to 3. 5. The terminal attaching/detaching device according to claim 4, wherein the second tapered portion is inclined at an angle smaller than 45 degrees with respect to the pressing direction. further comprising an operating member for operating the holding member to move in the pressurizing direction or in a direction opposite to the pressurizing direction;
6. The terminal attaching/detaching device according to claim 4, wherein the operating member is capable of adjusting a moving distance of the holding member in the pressing direction. 7. The conductive member according to any one of claims 1 to 6, wherein the protrusion is inserted into a through hole formed in the conductive member from the pressure direction side toward the side opposite to the pressure direction. 1. A terminal attaching/detaching device according to claim 1.

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