JP6845561B2 - Bus duct branching device - Google Patents

Description

The present invention relates to a bus duct branching device, and more particularly to a bus duct branching device including a branch conductor electrically connected to the bus duct conductor.

Conventionally, bus ducts that form electric trunk lines have been used inside and outside structures such as buildings and factories. As a branching device for a bus duct that branches from this bus duct, the one shown in the following patent documents is used.

The bus duct branching device described in Patent Document 1 is attached so as to be conductive with the conductor of the bus duct by inserting the plug head into the plug-in hole of the bus duct, and is movable on the plug head in the thickness direction of the bus duct. A needle member and a detection unit for detecting the movement of the probe member (that is, markings made at predetermined positions of the probe member) are provided. When the branching device is fixed in the plug-in hole, the detection unit becomes visible in this branching device, and the contact portion between the conductor of the bus duct and the branching conductor of the branching device is reliably contacted and electrically connected. You can confirm that.

The bus duct branching device described in Patent Document 2 includes a fixing member for fixing the bus duct and the bus duct branching device. This branching device is fixed to the bus duct by pressing the branching device against the side surface of the bus duct by the urging force of the elastic member constituting the fixing member. Further, when removing the branching device of the bus duct from the bus duct, the branching device is put into the unlocked state by performing an operation of moving the fixing hook of the fixing member in the fixing release direction against the urging force of the elastic member, and the removal can be performed. It will be possible.

Japanese Unexamined Patent Publication No. 2010-239673 Jitsukaisho 58-34384 Gazette

In the bus duct branching device described in Patent Document 1, it can be confirmed by the detection unit that the conductor of the bus duct and the branching conductor of the bus duct branching device are in contact with each other and electrically connected.

However, since it does not have a fixing member for maintaining the attached state of the bus duct branching device to the bus duct, there is a preventive measure for preventing the branching device from coming off the attachment position of the bus duct and causing poor contact after the attachment. It is a situation that has not been taken.

Ensuring contact between branch conductors is a very important factor in bus duct branching equipment, and even if perfect contact is obtained during installation work, it may be removed due to unforeseen circumstances during operation. Therefore, Patent Document 2 proposes that the bus conductor and the branching device of the bus duct are fixed by a fixing member. In the fixed state in which the branching device of the bus duct is fixed at a predetermined position of the bus duct by the fixing member, the branch conductor and the conductor are properly connected, and the relative movement between the bus duct and the branching device of the bus duct is prevented. It is possible to prevent the branching device of the bus conductor from being removed.

However, although the fixing member maintains the fixed state between the bus duct and the branching device of the bus duct, in the actual installation work, the fixing member is surely fixed due to various factors such as the pushing of the branching device of the bus duct is loose. It is necessary to confirm whether it is in the fixed state.

In the bus duct branching device described in Patent Document 2, it is not possible to easily confirm whether or not the fixing member is in the fixed state from the appearance after mounting, so that the work is performed after mounting the branching device using the fixing member. It was necessary for a person to confirm the fixed state by applying force to the branching device by using a hand or a tool, and the confirmation work was complicated.

Further, since there are cases where it is difficult to carry out the confirmation work, such as the fixing member being hidden by the branching device of the bus duct, it has been required to reduce the complexity of the confirmation work.

The present invention has been made in view of the above problems, and an object of the present invention is to have a fixed member in a fixed state in a bus duct branching device capable of maintaining a fixed state between the bus duct and the bus duct branching device by a fixing member. The purpose is to provide a branching device for a bus duct that can be easily and surely confirmed.

The invention according to claim 1 for solving the above problems includes a box body including a branch conductor electrically connected to the conductor of the bus duct, and a fixing member for fixing the box body to the bus duct. In the branching device of the bus duct, a display member is provided so that the visible state from the outside of the box can be changed depending on whether the fixing member is fixed to the bus duct or not , and the display member is interlocked with the fixing member. It is characterized in that the visual state changes.

According to this configuration, when the bus duct branching device is attached to the bus duct, the bus duct branching device is in a fixed state of being securely fixed to the bus duct, that is, the mounting state of the fixing member is unstable. It can be confirmed by visually recognizing the state of the display member from the outside of the box body of the branching device whether or not it is in the fixed release state.

Therefore, it is possible to easily and surely confirm the fixed state by eliminating the complicated confirmation work that the operator has conventionally performed directly by using a hand or a tool.

Further , according to this configuration, the visual state of the display member changes in conjunction with the fixing operation in which the fixing member transitions from the fixed release state to the fixed state and the fixing release operation in which the fixed member transitions from the fixed state to the fixed release state. Whether or not the fixing member is in the fixed state can be accurately visually recognized.

The invention according to claim 2 is the branching device for the bus duct according to claim 1, wherein the display member has a fixed display position indicating that the fixing member is in a fixed state and a fixing member in a fixed release state. It is movable to the fixed release display position indicating that it is present, and is urged by the urging means to either the fixed display position side or the fixed release display position side, and the urging means of the urging means. It is characterized in that the visual state changes by moving to the other side of the fixed display position side and the fixed release display position side against the urging force.

According to this configuration, since the visual state of the display member can be changed by using the urging force of the urging means, the structure is simple and the manufacturing cost can be suppressed.

According to the third aspect of the present invention, the box body is attached to the bus duct with a box body including a branch conductor electrically connected to the conductor of the bus duct and the box body having the branch conductor connected to the conductor. In the branching device of the bus conductor provided with the fixing member to be fixed to the box, a display member capable of changing the visible state from the outside of the box body depending on the state of being fixed to the bus conductor by the fixing member and the state of being unfixed is provided. When the fixing member is in the fixed state, the display member has a fixed display position indicating that the fixing member is in the fixed state and a fixing release display position indicating that the fixing member is in the fixing release state. to be movable manually, when the fixing member is in the unlocking state, manual movement to the fixed state lies at the unlocking display position is set impossible, the fixed When the member is shifted from the fixed release state to the fixed state, the member is maintained at the fixed release display position .

According to this configuration, when the fixing member is in the fixed display position, it is surely prohibited that the display member is in the fixed display position. Therefore, when the display member is in the fixed display position, the fixing member is in the fixed state. You can see exactly what is in.

According to a fourth aspect of the present invention, in the bus duct branching device according to any one of claims 1 to 3 , when the fixing member is in a fixed state, the fixing member moves in the fixing release direction. It is characterized by being provided with an interfering member that prevents the above.

According to this configuration, since the fixing release operation of the fixing member can be prevented by the interference member, it is possible to prevent the fixing state from being unexpectedly released when the branching device of the bus duct is in the fixed state. , It is possible to prevent accidental removal of the branching device of the bus duct.

The invention according to claim 5 is characterized in that, in the branching device for a bus duct according to claim 4 , the interference member is integrated with the display member.

According to this configuration, it is possible to prevent an accidental removal of the branching device of the bus duct while suppressing an increase in the number of parts, and to simplify the work of confirming the fixed state.

According to a sixth aspect of the present invention, in the branching device for a bus duct according to any one of claims 1 to 5 , a plurality of the fixing members are provided, and a plurality of the display members are provided with respect to the box body. Can be moved to a fixed display position indicating that all of the fixed members are in the fixed state and a fixed release display position indicating that at least one of the plurality of fixed members is in the fixed release state. It is characterized by being.

According to this configuration, the fixed state can be reliably maintained by the plurality of fixing members, and when the display member is in the fixed display position, it is confirmed that all of the plurality of fixing members are in the fixed state. Since it can be done, the confirmation work is easy.

The invention according to claim 7 is characterized in that, in the branching device for a bus duct according to any one of claims 1 to 6 , the display member is attached to the bottom surface of the box body.

According to this configuration, the display member is provided on the bottom surface of the box facing the bus duct in the branching device of the bus duct, so that the existing bus duct branching device can be introduced at low cost without significantly changing the structure. be able to.

The invention according to claim 8 is the branching device for the bus duct according to claim 7 , wherein the display member overlaps the bottom surface of the box body and cannot be visually recognized from the outside when the fixing member is in the fixed state. On the other hand, when the fixing member is in the defixed state, at least a part of the fixing member does not overlap with the bottom surface and is exposed to the outside so that it can be visually recognized.

According to this configuration, it is possible to easily and surely confirm that the branching device is in the fixed state by changing the display unit from a visible state to an invisible state in the installation work of the branching device of the bus duct. Can be done.

The invention according to claim 9 is the branching device for the bus duct according to any one of claims 1 to 8 , wherein the box body is attached to the outside of the housing including the conductor in the bus duct by the fixing member. The display member is fixed and is characterized in that it is arranged between the box body and the housing.

According to this configuration, since the display member is arranged between the box body and the housing, it is possible to easily confirm the fixed state without significantly impairing the aesthetic appearance.

According to the present invention, it is possible to easily and surely confirm whether or not the branching device of the bus duct is in a fixed state fixed to the bus duct by visually recognizing the state of the display member from the outside of the box body. Further, the fixing member in the fixed state can surely maintain the fixing between the bus duct and the branching device of the bus duct.

The perspective view which shows the state which attached the branching device of the bus duct which concerns on 1st Embodiment of this invention to a bus duct. The front view which shows the state before attaching the branching device of a bus duct to a bus duct. It is a figure which shows the fixing member of the branching device of a bus duct shown in FIG. 1, (a) is an exploded plan view, (b) is an exploded front view, (c) is an exploded side view. The perspective view which shows the operation part of the fixing member. It is a figure explaining the attachment of the branching device of a bus duct to a bus duct, (a) is the front view which shows the state during installation, (b) is the front view which shows the state after installation. It is a figure explaining the attachment of the branching device of a bus duct to a bus duct, (a) is the perspective view which shows the state during installation, (b) is the perspective view which shows the state after installation. The perspective view of the display member of the branching device of a bus duct which concerns on 2nd Embodiment. It is a figure explaining the attachment of the branching device of a bus duct to a bus duct, (a) is the perspective view which shows the state during installation, (b) is the perspective view which shows the state after installation. It is a figure explaining the moving state of the fixing member and the display member with respect to a box body, (a) shows the fixing release state of a branching apparatus, and (b) shows the fixing state of a branching apparatus. The perspective view which shows the modification of the display member. It is a partially enlarged sectional view explaining the moving state of the display member of the branching apparatus of a bus duct which concerns on 3rd Embodiment, (a) shows the de-fixation state of a branching apparatus, and (b) is the branching apparatus. Indicates a fixed state. The perspective view of the display member of the branching device of a bus duct which concerns on 4th Embodiment. FIG. 9 is a cross-sectional view similar to FIG. 9 for explaining the moving state of the fixing member and the display member with respect to the box body. FIG. 9A shows a fixing state of the branching device, and FIG. A partially broken perspective view illustrating an installation mode of an interference member in a branching device of a bus duct. The front view which shows the bus duct of the modification 1 and the branching device of a bus duct. The front view which shows the bus duct of the modification 2 and the branching device of a bus duct.

Next, an embodiment of the present invention will be described in detail with reference to the drawings.

(First Embodiment)
A first embodiment of the bus duct branching device according to the present invention, which is attached to the bus duct and branches from the conductor of the bus duct, will be described with reference to FIGS. 1 to 6. It should be noted that each figure does not particularly limit the design and arrangement direction of the bus duct, the mounting direction of the branching device of the bus duct, and the like.

FIG. 1 is a perspective view showing a state (fixed state) in which the bus duct branching device 10 according to the first embodiment is attached to the bus duct 70, and FIG. 2 is a state before the bus duct branching device is attached to the bus duct. It is a front view which shows. In each of the following figures, the arrow X direction is referred to as a width direction, the arrow Y direction is referred to as a depth direction, and the arrow Z direction is referred to as a height direction.

In the bus duct 70, the conductor 74 constituting the electric trunk line is included in the housing 72. The branching device 10 of the bus duct includes a box body 12 including a branch conductor (not shown) electrically connected to the conductor 74, an insertion portion 14 provided outside the box body 12, and an insertion portion 14. A contact 16 electrically connected to the branch conductor and a mounting mechanism 18 for mounting the branching device 10 on the bus duct 70 are provided.

As shown in FIG. 3, the mounting mechanism 18 includes a guide member 50 for positioning the bus duct 70 in the width direction, a fixing member 30 for fixing the box body 12 to the housing 72 of the bus duct 70, and a fixing member 30. It is integrally formed and includes a display member 40 for visually displaying the fixed state by the fixing member 30.

In the bus duct 70, a shutter 78 is provided in the plug-in hole 76 formed on the side surface of the housing 72. When the shutter 78 is opened, an opening appears on the side surface of the housing 72, and the insertion portion 14 of the branching device 10 is inserted into this opening, and the contact 16 is connected to the conductor 74 to form the conductor 74 and the branch conductor. Electrical contact can be obtained. In this state, the fixed state is maintained by fixing the bus duct 70 and the branching device 10 with the fixing member 30.

In the branching device 10, the box body 12 has a substantially rectangular cross section, and the insertion portion 14 and the fixing member 30 are attached to the bottom surface 12a facing the bus duct 70 in a state where the branching device 10 is attached to the bus duct.

The insertion portion 14 is a substantially box-shaped member, and a plurality of contacts 16 are exposed from one side surface portion. Each contact 16 is formed in a clip shape by an elastic conductor so as to sandwich and contact the conductor 74 to obtain an electrical connection, and the difference in insulation so as to be insulated from the other contacts 16. It is covered with a recess 14. A guide member 50, a fixing member 30, and a display member 40 constituting the mounting mechanism 18 are arranged outside the insertion portion 14 in the width direction.

The guide member 50 faces the bottom surface 12a of the box body 12 and is fixed to the bottom surface 12a from both ends in the width direction of the fixing portion 51 and downward in the height direction (direction away from the box body 12). It has a pair of extending protrusions 55. The fixing portion 51 is a rectangular thin plate, has an opening 51a through which the insertion portion 14 is inserted, and is inserted with a fixing tool such as a bolt for fixing the fixing portion 51 to the bottom surface 12a. It has a mounting hole 51b. Each protruding portion 55 has a substantially rectangular flat plate portion 56 and a pair of support pieces 57 that are bent outward in the width direction from both side portions of the flat plate portion 56 and face each other. A shaft hole 57a through which a shaft support member 54, which will be described later, is inserted is formed on the lower side of each support piece 57.

The fixing member 30 has a substantially rectangular base portion 32 which is axially supported by the support piece 57 and is arranged so as to face substantially parallel to the flat plate portion 56, and the support piece 57 of the guide member 50 in the depth direction in the assembled state. It has a pair of fixing pieces 34 that bend inward in the width direction from both side portions 32a of the base portion 32 so as to overlap each other. The base portion 32 is provided with an operation portion 33 for gripping the fixing member 30 and rotating the fixing member 30. In the present embodiment, the operation unit 33 is an opening formed in the base portion 32, and when the branching device 10 is removed, the operator can put his / her hand into the opening from the outside to grip the fixing member 30. There is.

The fixing piece 34 has a locking portion 34a that can be locked in a recess 72a formed in the housing 72 of the bus duct 70 at an end portion inward in the width direction. In the present embodiment, the locking portion 34a is formed by the side edge of the fixing piece 34 on the inner side in the width direction (insertion portion 14 side), and is a second hypotenuse continuous with the first hypotenuse 35a and the first hypotenuse 35a. It is a substantially triangular convex portion formed by the hypotenuse 35b and projecting inward in the width direction. The first hypotenuse 35a and the second hypotenuse 35b are set at different inclination angles. A shaft hole 34b through which the shaft support member 54 is inserted is formed on the lower side of each fixing piece 34. Further, in the pair of protruding portions 55, the dimension between the locking portions 34a facing each other in the width direction is set shorter than the dimension in the width direction of the housing 72 of the bus duct 70.

The display member 40 is integrally formed with the fixing member 30 in the present embodiment, and specifically, is a part of the fixing member 30 and protrudes outward in the width direction from the upper end portion of the base portion 32. It is a flat plate-shaped part that extends in the depth direction. The display member 40 may be configured to be removable from the fixing member 30, and may be made of any material as long as it can be processed and formed into a flat plate shape as shown in the illustrated example. A colored display portion 45 is formed on the upper surface of the display member 40 (the surface facing the bottom surface 12a of the box body 12 in the assembled state) so as to be visually distinguished from other regions. The display unit 45 may be a region that has been subjected to a treatment for enhancing visibility, and can be formed by, for example, painting, surface treatment, sticking of a sticker, or the like applied to the display member 40.

In the present embodiment, as shown by dots in FIGS. 3A and 4, the display unit 45 has a rectangular shape that is long in the depth direction, and the outer side edge 45a in the width direction extending in the depth direction is the display member 40. It coincides with the outer side edge 40a in the width direction of. The color of the display unit 45 is not particularly limited, but it may be a fluorescent color so that the display unit 45 can be clearly visually confirmed by shining a light when it is installed in a dark place. Suitable.

The fixing member 30 superimposes each support piece 57 and each fixing piece 34 on the protruding portion 55 of the guide member 50 so that the pair of support pieces 57 are covered by the pair of fixing pieces 34 from the outside in the depth direction, and the fixing piece 34 By inserting the shaft support member 54 into the shaft hole 34b of the above and the shaft hole 57a of the support piece 57, the shaft support member 54 is rotatably supported with respect to the guide member 50. In the assembled state, the operation unit 33 is located above the shaft support member 54 in the height direction (box body 12 side).

Between the base portion 32 of the fixing member 30 and the flat plate portion 56 of the guide member 50, the fixing member 30 is in the fixing direction (that is, the direction in which the locking portion 34a is rotated inward in the width direction, and the branching device 10 A coil spring 60, which is an urging means for urging the bus duct 70 in a direction in which the fixing member 30 maintains the fixing of the coil spring 60, is arranged. The coil spring 60 is provided around the shaft portion of the screw 39 screwed and fixed in the screw hole 32b formed in the base portion 32, and in the assembled state, one end abuts on the flat plate portion 56 and the other end abuts on the base portion 32. I'm in contact. One or more such coil springs 60 are provided for one base portion 32, and two coil springs 60 are arranged in the illustrated example. The urging means for urging the fixing member 30 is not limited to the coil spring 60, and for example, a rubber, a leaf spring, or the like that can apply urging force may be appropriately selected and arranged at an appropriate place. it can.

The mounting mechanism 18 described above is mounted on the bottom surface 12a of the box body 12 in an assembled state, and in a natural state in which the fixing member 30 is not subjected to a special external force, the shaft support member 54 is subjected to the urging force of the coil spring 60. The upper portion of the fixing member 30 located above this rotates inward in the width direction, and the lower portion of the fixing member 30 located below this rotates outward in the width direction. (See arrow A in FIG. 2). In such a state, the base portion 32 of the fixing member 30 comes into contact with the tip of the support piece 57 of the guide member 50, so that the rotation of the fixing member 30 is prevented.

In the above-mentioned natural state, the dimension from the widthwise outer side edge 40a of one display member 40 to the widthwise outer side edge 40a of the other display member 40 is larger than the widthwise dimension of the bottom surface 12a of the box body 12. Is also set slightly shorter, and the display unit 45 of each display member 40 overlaps the bottom surface 12a of the box body 12 in a plan view in a natural state, and is invisible from the outside. Further, when the fixing member 30 moves in the fixing release direction (rotation direction opposite to the fixing direction), the display unit 45 is exposed outward in the width direction with respect to the bottom surface 12a from the outside of the box body 12. It becomes visible. In this way, the display member 40 moves with the movement of the fixing member 30, and the fixed display position at which the display unit 45 is invisible from the outside and the fixing release display in which at least a part of the display unit 45 is visible from the outside. It is configured to be movable to and from the position.

Next, attachment of the above-mentioned bus duct branching device 10 to the bus duct 70 will be described with reference to FIGS. 5 and 6.

First, as shown in FIGS. 5A and 6A, the plug-in hole 76 and the insertion portion 14 of the branching device 10 face each other in the thickness direction of the bus duct 70, and the guide member 50 The branching device 10 is moved to the bus duct 70 side in a state where both side portions in the width direction of the housing 72 of the bus duct 70 are sandwiched between the pair of protruding portions 55.

Then, in the branching device 10, the locking portion 34a of the fixing member 30 projecting inward in the width direction of the housing 72 abuts on the side surface 73 of the housing 72, and the fixing member 30 resists the urging force of the coil spring 60. And rotate in the fixing release direction. Specifically, the first hypotenuse 35a abuts on the side surface 73 of the housing 72, and further, by moving the branching device 10 toward the bus duct 70, this abutting portion is brought into contact with the first hypotenuse 35a along the first hypotenuse 34a. (That is, the intersection of the first hypotenuse 35a and the second hypotenuse 35b), and the fixing member 30 rotates in the fixing release direction accordingly. At this time, the display member 40 integrally formed with the fixing member 30 moves in the fixing release direction together with the fixing member 30, and becomes the fixing release display position where the display unit 45 is exposed.

Further, when the branching device 10 is moved toward the housing 72 and the top of the locking portion 34a reaches the recess 72a formed on the side surface 73 of the housing 72, as shown in FIGS. 5 (b) and 6 (b). The locking portion 34a is fitted into the recess 72a, and the fitted state is maintained by the urging force of the coil spring 60 (fixed state of the branching device 10). The display member 40 located between the housing 72 and the bottom surface 12a of the box body 12 moves from the fixing release display position to the fixed display position in conjunction with the fitting operation of the locking portion 34a, and the display unit 45 moves. It will not be visible from the outside. In the fixed state, the fixed portion 51 of the guide member 50 and the frame body constituting the plug-in hole 76 are in contact with each other.

In this fixed state, when the branching device 10 is pulled out from the bus duct 70 in the direction of being removed, the second hypotenuse 35b of the locking portion 34a comes into contact with the inner surface of the recess 72a, and the pulling out movement of the branching device 10 is prevented.

As described above, the branching device 10 is securely attached to the housing 72 of the bus duct 70.

When removing the branching device 10 from the bus duct 70, the operator grips the operation unit 33 and manually rotates the fixing member 30 in the fixing release direction against the urging force of the coil spring 60. The fixing member 30 is rotated to a position where the second hypotenuse 35b of the locking portion 34a of the fixing member 30 does not come into contact with the recess 72b of the bus duct 70 to release the mating state between the locking portion 34a and the recess 72b. The branching device 10 can be removed by pulling out the branching device 10 from the bus duct 70 in the direction of removing the branching device 10.

As described above, in the mounting work, the branching device 10 is in the fixed state after the fixing member 30 is in the fixed release state, and in conjunction with this, the display member 40 is changed from the fixed release display position to the fixed display position. Transition. Therefore, after visually recognizing the display unit 45 of the display member 40 from the outside of the box body 12, the operator can easily confirm that the fixing member 30 has been securely fixed by making the display unit 45 invisible. be able to.

(Second Embodiment)
Next, a second embodiment of the bus duct branching device 10 will be described with reference to FIGS. 7 to 9. In each of the embodiments and modifications shown in FIGS. 7 to 16, the parts corresponding to the first embodiment are designated by the same reference numerals. Further, in the second to fourth embodiments and each modification described below, detailed description of the same configuration as that of the first embodiment will be omitted.

In the second embodiment, the display member 140 and the fixing member 30 constituting the mounting mechanism 18 are separately configured. As shown in FIG. 7, the display member 140 includes a pair of first member 141 and second member 142, and urging means 160 connecting the first member 141 and the second member 142. Since the second member 142 is formed in the same shape as the first member 141, the first member 141 will be described in detail here.

The first member 141 has a rod-shaped portion 144 having a substantially rectangular cross section and extending linearly, and a first mounting portion 147 and a second mounting portion 148 located at both ends of the rod-shaped portion 144.

The rod-shaped portion 144 has a display portion 145 colored so as to be visually distinguishable from other regions on one side surface which becomes the upper surface 144a in the assembled state. The display unit 145 is a rectangular region extending long from the first mounting portion 147 side toward the second mounting portion 148 side, as shown by dots in FIG. 7.

The first mounting portion 147 is a portion of the end portion of the rod-shaped portion 144 that protrudes in a direction orthogonal to the length direction of the rod-shaped portion 144, and is a long hole 150 that is a through hole extending in the orthogonal direction and a rod-shaped portion 144. It has a contact portion 152 formed by an inclined surface inclined with respect to the length direction of the above. As will be described later, the contact portion 152 is a portion that comes into contact with the fixing member 30 in the assembled state of the branching device 10. The second mounting portion 148 is formed in a shape symmetrical to the first mounting portion 147 so as to be paired with the first mounting portion 147, and as shown in the figure, the second mounting portion 148 and the contact portion 152 of the first mounting portion 147. The contact portion 152 of the second mounting portion 148 is formed so as to face inward in the length direction of the rod-shaped portion 144, and the inclined surface of each contact portion 152 is outside the length direction of the rod-shaped portion 144. It is inclined away from the rod-shaped portion 144 toward the direction.

In the display member 140, the first mounting portion 147 and the second mounting portion 148 of the first member 141 are respectively connected to the second mounting portion 148 and the first mounting portion 147 of the second member 142 via the urging means 160, respectively. As a whole, it forms a substantially rectangular shape having a pair of long sides formed by the rod-shaped portion 144 and a pair of short sides formed by the mounting portions 147, 148 and the urging means 160. ing.

The first member 141 and the second member 142 are urged in a direction approaching each other by the urging means 160. As such an urging means 160, for example, a known material such as rubber, a coil spring, or a leaf spring can be appropriately selected and used.

FIG. 9 is a diagram for explaining the moving state of the fixing member 30 and the display member 140 with respect to the box body 12, and the cross section of the position of the IX-IX line of FIG. 8 in the height direction of the branching device 10 is viewed from the lower surface side. It is a figure. The display member 140 is attached to the bottom surface 12a of the box body 12 by using a support member 155 such as a screw inserted through the elongated hole 150. In addition, in FIG. 9, in order to make it easy to understand the moving state of the display member 140 accompanying the movement of the fixing member 30, the description of the insertion portion 14 and the contact 16 is omitted, and the diagonal line indicating the cross section is omitted. .. Further, in FIG. 9, the fixing member 30 is described in a filled state, and dots are added to the region where the display unit 145 is formed when the display member 140 is viewed from the upper surface side. In the present embodiment, the upper end portion of the base portion 32 of the fixing member 30 is bent inward in the width direction.

The first and second members 141 and 142 constituting the display member 140 are movable in the depth direction with respect to the box body 12 so that the support member 155 moves in the elongated hole 150, respectively. Specifically, the first and second members 141 and 142 move inward in the depth direction, the display unit 145 overlaps the bottom surface 12a in a plan view, and the fixed display position becomes invisible from the outside, and the first The second members 141 and 142 can be moved outward in the depth direction, and the display unit 145 can be moved to the fixed release display position where the display unit 145 is exposed outward in the depth direction from the bottom surface 12a and can be visually recognized from the outside.

Further, the contact portion 152 of the display member 140 is a part of the fixing member 30, specifically, a corner portion formed by the base portion 32 and the fixing piece 34 at the upper end portion of the fixing member 30 (hereinafter referred to as an upper end corner portion 36). ) Is installed so as to come into contact with it.

Next, attachment of the branching device 10 of the second embodiment to the bus duct 70 will be described.

First, as shown in FIG. 8A, the plug-in hole 76 of the bus duct 70 and the insertion portion 14 of the branching device 10 are opposed to each other, and the housing 72 of the bus duct 70 is formed by the pair of protruding portions 55 of the guide member 50. The branching device 10 is moved to the bus duct 70 side with both side portions in the width direction sandwiched. Then, in the branching device 10, the locking portion 34a of the fixing member 30 comes into contact with the side surface 73 of the housing 72, and the fixing member 30 rotates in the fixing release direction against the urging force of the coil spring 60 (fixing release state). ).

At this time, as shown in FIG. 9A, the first and second members 141 and 142 of the display member 140 are attached by the pressing force received from the upper end corner portion 36 of the fixing member 30 that abuts on the abutting portion 152. It is pushed outward in the depth direction against the urging force of the force means 160. As a result, the display unit 145 of the display member 140 becomes the fixed release display position exposed from the bottom surface 12a of the box body 12.

Further, when the branching device 10 is moved toward the housing 72 and the top of the locking portion 34a reaches and fits into the recess 72a of the housing 72 as shown in FIG. 8B, the branching device 10 is fitted into the bus duct 70. It is fixed to (fixed state). At this time, as shown in FIG. 9B, the display member 140 changes from the fixing release display position to the fixed display position by changing the contact position of the upper end corner portion 36 of the fixing member 30 at the contact portion 152. And the display unit 145 becomes invisible from the outside. As a result, the branching device 10 is securely attached to the housing 72 of the bus duct 70.

As described above, in the mounting work, the branching device 10 of the present embodiment is in the fixed state after the fixing member 30 is in the fixing release state, and in conjunction with this, the display member 140 is fixedly displayed from the fixing release display position. The state transitions to the position. Therefore, after visually recognizing the display unit 145 of the display member 140 from the outside of the box body 12, the operator can easily confirm that the fixing member 30 has been securely fixed by making the display unit 145 invisible. be able to.

Further, since the first member 141 and the second member 142 are in contact with both of the two fixing members 30 provided in the branching device 10, a part of the display unit 145 is visible. If so, it can be confirmed that at least one of the two fixing members 30 is in the unlocked state. For example, when one of the two fixing members 30 is in the fixed state and the other is in the fixed release state, at least the fixing member 30 side of the display unit 145 extending in the width direction is in the fixed release state. The display unit 145 of the above becomes visible. In this case, by setting the fixing member 30 in the unlocked state to the fixed state, the entire area of the display unit 145 becomes invisible, and it is surely confirmed that all the fixing members 30 are in the fixed state. be able to.

In this way, when a plurality of fixing members 30 are provided in the branching device 10, one display member 140 comes into contact with all of the plurality of fixing members 30 and moves in conjunction with the plurality of fixing members 30. It is possible to easily confirm whether or not all of the fixing members 30 of the above are in the fixed state.

(Modified example of the second embodiment)
FIG. 10 shows a modified example of the display member 140 shown in the second embodiment.

In the display member 140 of the modified example, the first and second members 141 and 142 are formed of thin plate-shaped members. The contact portion 152 is formed by bending a thin plate downward in the height direction, thereby giving a thickness in the height direction and increasing the area of contact with the fixing member 30. Similar to the display member 140 of the second embodiment, the display member 140 of the modified example moves between the fixed display position and the fixed release display position in conjunction with the movement of the fixed member 30.

Although not shown, in the display member 140 of the second embodiment and the modified example, by appropriately changing the angle of the inclined surface forming the contact portion 152, the display portion 145 can be fixed by the fixing member 30. The moving direction of the display member 140 may be changed with the movement of the fixing member 30 so that the fixing member 30 can be visually recognized from the outside when the fixing member is in the fixed state and cannot be visually recognized when the fixing member 30 is in the fixed release state.

(Third Embodiment)
Next, a third embodiment of the bus duct branching device 10 will be described with reference to FIG.

In the third embodiment, the display member 240 and the fixing member 30 constituting the mounting mechanism 18 are separately configured. The display member 240 is provided at each of the four corners of the bottom surface 12a of the box body 12. In addition, although FIG. 11 shows the display member 240 arranged at the corner portion of one of the four locations, the display member 240 is similarly arranged at the corner portion of the other three locations.

The display member 240 is formed of a plate-shaped member, and has a substantially elliptical rotation base portion 241 and a protrusion 242 protruding from the rotation base portion 241. On the upper surface of the projecting portion 242 (the surface facing the bottom surface 12a of the box body 12), a colored display portion 245 is formed so as to be visually distinguished from other regions.

The display member 240 is rotatably supported on the bottom surface 12a of the box body 12 by a shaft member 246 such as a screw at the rotation base 241. Further, it is urged to rotate in one direction by a winding spring (urging means) 260 wound around the shaft member 246.

In the illustrated example, one end 261 of the winding spring 260 is locked to the locking shaft portion 247 provided on the bottom surface 12a of the box body 12, and the other end 262 is provided on the rotation base portion 241 (not shown). It is locked to the part. In the initial state in which the display member 240 is not particularly subjected to an external force, the display member 240 is not subjected to the urging force by the winding spring 260. In this initial state, as shown in FIG. 11B, the protruding portion 242 of the display member 240 is exposed to the outside of the box body 12, and the display portion 245 is in a fixed display position that can be visually recognized from the outside. On the other hand, when an external force is applied to the display member 240 and the display member 240 rotates against the urging direction of the winding spring 260, as shown in FIG. 11A, the rotation base portion 241 and the protruding portion 242 become the box body 12. It overlaps with the bottom surface 12a of the above in a plan view, and the display unit 245 becomes a fixed release display position that cannot be visually recognized from the outside. Further, when the display member 240 is in the fixed release display position and the external force is removed, the display member 240 rotates under the urging force of the winding spring 260 and returns to the initial state (that is, the fixed display position).

The display member 240 is in non-contact with the fixing member 30 when the fixing member 30 is in the fixed state, and when the fixing member 30 is in the unfixed state, the fixing member 30 comes into contact with the rotation base 241 and the winding spring. It is installed so as to rotate against the urging direction of 260. In the branching device 10 of the third embodiment, the configuration other than the display member 240 is the same as that of the second embodiment, and thus details will be omitted here.

Next, attachment of the branching device 10 of the third embodiment to the bus duct 70 will be described.

When the branching device 10 is moved toward the bus duct 70 so that the branching device 10 is attached to the bus duct 70, the locking portion 34a of the fixing member 30 comes into contact with the side surface 73 of the housing 72, and the fixing member 30 is released in the fixing release direction. Rotates to (unfixed state). At this time, in the display member 240, the rotation base portion 241 is pressed by the upper end corner portion 36 of the fixing member 30, and the fixed display position shown in FIG. 11B is linked to the movement of the fixing member 30 in the fixing release direction. To the fixed release display position shown in FIG. 11A, the display unit 245 changes from a visible state to an invisible state.

Further, when the branching device 10 is moved to the housing 72 side and the branching device 10 is fixed to the bus duct 70 by the fixing member 30, the display member 240 becomes non-contact with the fixing member 30 and the winding spring 260 It rotates by the urging force and becomes a fixed display position. As a result, the display unit 245 becomes visible from the outside.

As described above, in the mounting work of the branching device 10 of the present embodiment, the state of the display member 240 changes from the fixed release display position to the fixed display position in conjunction with the movement of the fixed member 30. Therefore, the operator can easily confirm that the fixing member 30 has been securely fixed by making the display unit 245 visible again after the display unit 245 is no longer visible from the outside of the box body 12.

Although not shown, in the display member 240 of the third embodiment, the display unit 245 can be changed by appropriately changing the positional relationship between the rotation base portion 241 and the protrusion 242 and the urging direction by the winding spring 260. The design can be changed so that the fixing member 30 can be visually recognized from the outside when the fixing member 30 is in the fixed state and cannot be visually recognized when the fixing member 30 is in the fixed state.

(Fourth Embodiment)
Next, a fourth embodiment of the bus duct branching device 10 will be described with reference to FIGS. 12 and 13.

In the fourth embodiment, the display member 340 and the fixing member 30 constituting the mounting mechanism 18 are separately configured, and the display member 340 does not have an urging means for urging the display member 340.

As shown in FIG. 12, the display member 340 is formed of a plate-shaped member, and has a rod-shaped portion 344 extending linearly and a first mounting portion 347 and a second mounting portion 348 located at both ends of the rod-shaped portion 344. And have.

The rod-shaped portion 344 has a display portion 345 colored so as to be visually distinguishable from other regions on the upper surface in the assembled state. The display unit 345 is a rectangular region extending long from the first mounting portion 347 side toward the second mounting portion 348 side, as shown by dots in FIG.

The first and second mounting portions 347 and 348 are portions at the end of the rod-shaped portion 344 that protrude in a direction orthogonal to the length direction of the rod-shaped portion 344, and are elongated holes 350 that are through holes extending in the orthogonal direction. And an interference portion (first interference member) 352 protruding downward in the height direction.

As shown in FIG. 13, the display members 340 are arranged in pairs on both sides of the box body 12 in the depth direction, and the box body 12 is provided by using support members 155 such as screws inserted through the elongated holes 350. It is attached to the bottom surface 12a of the. The display member 340 is movable in the depth direction with respect to the box body 12 so that the support member 155 moves in the elongated hole 350. Specifically, the display member 350 moves inward in the depth direction, the display unit 345 moves invisible from the outside of the box, and the display member 350 moves outward in the depth direction to display. The portion 145 can be moved to a fixed release display position where the portion 145 is exposed outward in the depth direction from the bottom surface 12a and can be visually recognized from the outside.

The interference portion 352 of the display member 340 can move the display member 340 between the fixed display position and the fixed release display position when the fixed member 30 is in the fixed state, and when the fixed member 30 is in the fixed release state. , The interference portion 352 is provided at a position where the display member 340 cannot move to the fixed display position when it comes into contact with the base portion 32 of the fixing member 30.

Next, attachment of the branching device 10 of the fourth embodiment to the bus duct 70 will be described.

In the state before mounting, the fixing member 30 is in the initial state (same as the fixed state) in which the fixing member 30 is moved toward the fixing direction by the urging force of the coil spring 60. In this state, the operator manually moves the display member 340 to the defixation display position. As a result, the display member 340 is in a state where the display unit 345 can be visually recognized from the outside of the box body 12.

When the branching device 10 is moved toward the bus duct 70 so that the branching device 10 is attached to the bus duct 70, the locking portion 34a of the fixing member 30 comes into contact with the side surface 73 of the housing 72, so that the fixing member 30 is fixed. Rotates in the release direction (fixed release state). At this time, as shown in FIG. 13A, the fixing member 30 can move in the fixing release direction without being restricted by the interference portion 352 of the display member 340.

Further, by moving the branching device 10 toward the housing 72, when the locking portion 34a of the fixing member 30 is fitted into the recess 72a of the housing 72, the branching device 10 is fixed to the bus duct 70 (fixed state). After that, the operator manually moves the display member 340 to the fixed display position so that the display unit 345 cannot be seen from the outside. In this fixing completed state (that is, the fixing member 30 is in the fixed state and the display member 340 is in the fixed display position), as shown in FIG. 13B, the fixing member 340 is fixed by the interference portion 352. The movement of the member 30 in the fixing release direction is prevented. This prevents the branching device 10 from being accidentally removed.

If the fixing member 30 is not securely fixed in the attachment work of the branching device 10, the display member 340 cannot be moved to the fixed display position, and the display unit 345 is moved to the outside of the box body 12. It will be exposed. This allows the operator to easily confirm that the fixed state is not certain.

When removing the branching device 10 from the bus duct 70, first, the display member 340 is manually moved from the fixed display position to the fixed release display position. After that, the branching device 10 can be removed by manually rotating the fixing member 30 in the fixing release direction against the urging force of the coil spring 60 and pulling out the branching device 10 in the direction of removing the branching device 10 from the bus duct 70.

(Modified example of the fourth embodiment)
FIG. 14 shows a modified example of the branching device 10 shown in the fourth embodiment.

In the branching device 10 of this modification, screw holes 13a and 341 having the same shape are formed in the bottom plate 13 of the box body 12 and the display member 340. The screw holes 13a and 341 overlap in the height direction when the display member 340 is in the fixed display position to form one hole portion 20. A screw (second interference member) 19 is inserted into the hole 20 and screwed to fix the display member 340 and the box body 12, so that the screw 19 interferes and the display member 340 is released from the fixed display position. Movement in the direction is blocked. Further, by blocking the movement of the display member 340, the movement of the fixing member 30 in the fixing release direction is also prevented.

The interference member is not limited to the screw 19, and may be a longitudinal member that can be inserted into the hole 20. Further, when the screw portion of the longitudinal member is not screwed, the longitudinal member comes into contact with the lid portion 22 of the box body 12 and the lid portion 22 cannot be closed, and the screw portion of the longitudinal member is a hole portion. The lid 22 may be closed when it is screwed into the 20.

The interference mechanism described in this modification (that is, the interference member such as the screw 19 or the longitudinal member and the hole 20 through which the interference member is inserted in the fixed state) is the first to first parts described above. It can also be applied to the branching device 10 shown in the third embodiment.

The present invention is not limited to the above-described embodiments and modifications, and the present invention is specified by combining the partial configurations of the respective embodiments and the examples described in the present specification, and the partial configurations of the respective embodiments are modified. Including those specified by adding a partial configuration of the examples described in the present specification to the configuration of each embodiment, and those specified by deleting the partial configuration of each embodiment of the invention. Various changes can be made without departing from the spirit. For example, in the second embodiment, the display member 140 includes two members (first and second members 141 and 142) having the display unit 145, but of the first and second members 141 and 142. There may be a configuration in which only one of the above is provided, and this is urged by the urging means 160 having one end connected to the box body 12. Further, in the third embodiment, one display member 240 may be provided for each fixing member 30, or in the fourth embodiment, one display member 340 may be provided. Any aspect may be used as long as it is possible to confirm all the fixed states of the plurality of fixing members 30 provided in the branching device 10. Further, the display members shown in each embodiment can be appropriately combined and applied. Further, the bus duct 70 to which the branching device 10 is attached is not limited to the one shown in FIG. 1, and may be an insulating close contact type bus duct 70 as shown in FIGS. 15 and 16.

In the first modification shown in FIG. 15, the first embodiment is applied to the bus duct branching device 10 that branches from the connecting portion connecting the bus ducts to each other.

In the modified example 2 shown in FIG. 16, the branching device 10 is fixed to the main body of the bus duct 70 by the fixing member 30 at a position away from the insertion port of the bus duct 70 into which the insertion portion 14 is inserted. The device 10 to which the display member 140 of the second embodiment is applied is shown. In the second modification, the fixing member 30 moves outward in the width direction against the urging force of the coil spring 60, so that the display member 140 moves outward in the depth direction (front direction of the paper surface and back of the paper surface) in conjunction with this. Designed to move in the direction).

As described above, the branching device 10 according to the present invention is not affected by the number of lines of the bus duct, the branching structure, etc. It is possible to change the constituent members of the above without departing from the spirit of the invention.

10 Bus duct branching device 12 Box body 19 Screw (interfering member)
30 Fixing member 34a Locking part 40, 140, 240, 340 Display member 45, 145, 245,345 Display part 60 Coil spring (biasing means)
160 Biasing means 260 Winding spring (Bending means)
352 Interference part (interference member)
70 Bus duct 72 Housing 72a Recess 14 Insert

Claims (9)

In a bus duct branching device including a box body including a branch conductor electrically connected to the conductor of the bus duct and a fixing member for fixing the box body to the bus duct.
A display member is provided so that the visible state from the outside of the box body can be changed depending on whether the fixing member is fixed to the bus duct or released from the fixing state .
The display member is a branching device for a bus duct, characterized in that the visual state changes in conjunction with the fixing member. The display member can be moved to a fixed display position indicating that the fixed member is in the fixed state and a fixed release display position indicating that the fixed member is in the fixed release state, and is movable by an urging means. It is urged to either the fixed display position side or the fixed release display position side, and is either the fixed display position side or the fixed release display position side against the urging force of the urging means. branching system of bus duct according to claim 1, characterized in that a change in the observation state by moving to the other side. A box body including a branch conductor electrically connected to a conductor of a bus duct, and a fixing member for fixing the box body to the bus duct in a mounted state in which the branch conductor is connected to the conductor are provided. In the branching device of the bus duct
A display member is provided so that the visible state from the outside of the box body can be changed depending on whether the fixing member is fixed to the bus duct or released from the fixing state.
The display member is
When the fixing member is in the fixed state, the fixing display position indicating that the fixing member is in the fixed state and the fixing release display position indicating that the fixing member is in the fixed release state are manually set. Movable and
When the fixing member is in the fixing release state, it is set to be in the fixing release display position and can not be manually moved to the fixed state.
A branching device for a bus duct, characterized in that when the fixing member is shifted from the fixing release state to the fixing state, the fixing member is maintained at the fixing release display position. The bus duct according to any one of claims 1 to 3 , further comprising an interference member that prevents the fixing member from moving in the fixing release direction when the fixing member is in the fixed state. Branching device. The branching device for a bus duct according to claim 4 , wherein the interference member is integrated with the display member. A plurality of the fixing members are provided, and the fixing member is provided.
The display member has a fixed display position indicating that all of the plurality of fixing members are in the fixed state with respect to the box body, and at least one of the plurality of the fixing members is in the unfixed state. The branching device for a bus duct according to any one of claims 1 to 5 , which is movable to a fixed release display position indicating that. The branching device for a bus duct according to any one of claims 1 to 6 , wherein the display member is attached to the bottom surface of the box body. The display member overlaps the bottom surface of the box body and becomes invisible from the outside when the fixing member is in the fixed state, while at least a part of the display member is invisible from the outside when the fixing member is in the defixed state. The branching device for a bus duct according to claim 7 , further comprising a display unit that is exposed to the outside and can be visually recognized without overlapping the bottom surface. The box body is fixed to the outside of the housing including the conductor in the bus duct by the fixing member.
The branching device for a bus duct according to any one of claims 1 to 8 , wherein the display member is arranged between the box body and the housing.

Images