JP7395535B2 - Wiring accommodation device - Google Patents

Description

The present invention relates to a wiring accommodation device.

Conventionally, when using wiring, the wiring is wound around a drum or the like and is let out as much as necessary. If wiring is not used, wrap the wiring around a drum or the like.

For example, Japanese Patent No. 4071126 (hereinafter referred to as "Patent Document 1") discloses an under-roll type winding/feeding device. This winding/feeding device has a drum mounted on a rotating underroll, and winds and feeds out a linear object such as a cable. By arranging two types of underrolls, large and small, and adjusting the distance between the two types of underrolls, the movement of the drum is smoothed.

Although the winding and unwinding device described in Patent Document 1 can smoothly wind up and unwind the drum, it requires both an under roll and a drum, resulting in an increase in the size of the device.

Further, when the wire is fed out, the power (rotational speed) required for the wire wound around the drum is different depending on the part where the wire is wound. Specifically, the location where the wiring is routed last and is far from the vehicle or robot is larger than the location where the wire is first routed out and is closer to the work vehicle or robot connected to the wiring. Power (rotation speed) is required. Therefore, unless you set the power (rotation speed) individually, you will not be able to properly wind and unwind the wires.

Furthermore, repeated winding and unwinding of the wires causes the wires to become twisted, which can lead to wire breakage. To prevent such disconnections, it is possible to use twist prevention joints, etc., but this does not fundamentally prevent twisting of the wiring and requires extra effort.

Furthermore, when using the principle of conventional planetary gears, the rotational transmission efficiency is improved by arranging the planetary gears around the sun gear located at the center. If you try to increase the number of rotations, you will need to either make the sun gear itself larger or finely adjust the pitch numbers of the sun gear and planetary gears. There was a need for a mechanism that could be adjusted more precisely.

SUMMARY OF THE INVENTION An object of the present invention is to provide a wiring accommodation device that can prevent wiring from twisting, adjust the power (rotation speed) required for wiring within a drum, and reduce space.

The wiring accommodation device of the present invention includes:
The main body and
a fixing drum fixed within the body and wrapping the wiring around a first side of the body;
a moving drum that is housed in the main body and wraps the wiring on a second side of the main body;
a moving unit that moves the moving drum relative to the fixing drum;
a rotating part that rotates the moving drum;
has.

According to the wiring accommodation device of the present invention, twisting of the wiring can be prevented, the power (rotation speed) required for the wiring within the drum can be adjusted, and the space can be reduced.

A perspective view of the wiring accommodation device of the embodiment during winding up. A perspective view of the wiring accommodation device of the embodiment when being fed out. Top view of the wiring accommodation device of the embodiment A perspective view showing details of the gear part of the wiring accommodation device according to the embodiment. Cross-sectional view showing details of the gear part of the wiring accommodation device of the embodiment

Embodiments of the present invention will be described with reference to the drawings as appropriate.

(Configuration of wiring accommodation device)
The wiring accommodation device 1 of this embodiment winds up and lets out the wiring C connected to the traveling vehicle A. When using vehicle A, the necessary amount of wiring C is fed out. If traveling vehicle A is not used, wind up the unwound wire C. The wiring accommodation device 1 includes a main body 2, a fixing drum 3, a moving drum 4, a moving section 7, and a rotating section 8.

In this embodiment, the wiring C is connected to the traveling vehicle A, but the wiring C can be used for various devices, mechanisms, etc. that use the wiring C. The wiring C is not limited as long as it is a wiring that supplies electricity, fluid, etc. supplied from a supply source (not shown) to the traveling vehicle A. Depending on the work site, one can be selected that has characteristics such as size, length, strength, pressure resistance, and electric resistance. The wiring C is alternately wound around the fixing drum 3 and the moving drum 4.

The main body 2 is a casing that houses the stationary drum 3 and the moving drum 4. The distance between the fixing drum 3 and the moving drum 4 is different when the wiring C is wound up and when it is let out. Specifically, as shown in FIG. 1, when the wiring C is wound up, the fixing drum 3 and the moving drum 4 are at the farthest distance within the main body 2. As shown in FIG. 2, when the wiring C is fed out, the fixing drum 3 and the moving drum 4 are at the closest distance within the main body 2. Preferably, the main body 2 is a rectangular cube. The main body 2 may have any shape as long as it can fix the positions of the fixing drum 3 and the moving drum 4 and ensure a moving distance of the moving drum 4 corresponding to the initial length of the wiring C.

The fixing drum 3 faces the moving drum 4 and wraps the wiring C around the first side of the main body 2. The fixing drum 3 is rotatably supported by a fixed shaft 3a. The fixed shaft 3a is fixed to a fixing sprocket 3c. A plurality of concave passages 3b are formed in the fixing drum 3. The wiring C is wound around the plurality of concave passages 3b.

The moving drum 4 faces the fixing drum 3, and the wiring C is wound around the second side of the main body. The moving drum 4 is rotatably supported by a main shaft 10 . The main shaft 10 is fixed to the moving sprocket 8a and the moving part main body 7d. A plurality of concave passages 4a are formed in the moving drum 4. Wiring C is wound around the plurality of concave passages 4a.

As shown in FIG. 3, the moving section 7 is a sliding mechanism, and moves the moving drum 4 toward the fixing drum 3 side. By moving the moving drum 4 toward the fixing drum 3, the wiring C is let out, and the traveling vehicle A can be driven at a desired location. The moving part 7 has a moving shaft 7a, a moving belt 7b, a moving groove 7c, and a moving part main body 7d.

As the drive source M is driven, the drive rotating shaft 6 rotates. The rotation of the drive rotating shaft 6 is transmitted to the moving shaft 7a via the moving belt 7b. Then, the moving drum 4 is moved by moving the moving section main body 7d along the moving groove 7c.
The drive source M is a power source, as shown in FIG. 3, and rotates the drive rotating shaft 6. The drive source M is, for example, various air motors, electric motors, fluid pressure motors, or the like. A speed reducer 5 is arranged to adjust the rotation speed of the drive rotating shaft 6.

The moving shaft 7a is disposed within the moving section main body 7d and is connected to the moving drum 4.
Following the moving belt 7b, the moving section body 7d and the moving drum 4 move.
The moving belt 7b transmits the rotation of the drive source M to the moving drum 4 via the driving rotating shaft 6. The moving belt 7b is, for example, a rubber belt or a metal chain. Depending on the weight of the moving drum 4 and the wiring C, the moving belt 7b can be selected as appropriate.

The moving groove 7c moves the moving part main body 7d as the moving belt 7b rotates. The moving drum 4 is moved by a part of the moving part main body 7d moving in the moving groove 7c. The moving groove 7c only needs to be a mechanism that becomes a rail, and various slide mechanisms can be used.

The moving part main body 7d is connected to the moving shaft 7a. As the moving belt 7b rotates, the moving section main body 7d moves the moving drum 4 along the moving groove 7c.

A fixing belt 3d is provided separately from the moving belt 7b. The fixing belt 3d transmits the rotation of the drive source M to the fixing drum 3 via the drive rotating shaft 6. The fixing drum 3 is rotated by moving the fixing sprocket 3c connected to the fixing drum 3 as the fixing belt 3d rotates. Note that the rotational speed of the drive source M transmitted to each of the moving drum 4 and the fixing drum 3 can be adjusted by adjusting the size and pitch number of the fixing sprocket 3c and the moving sprocket 8a.

In addition, the moving part 7 may be arrange|positioned on one side of the moving drum 4, or may be arrange|positioned on both sides of the moving drum 4. The moving belt 7b and the moving shaft 7a are arranged on both sides of the moving drum 4, and the rotation of the driving source M is transmitted via the driving rotating shaft 6. Then, by reciprocating the moving part main body 7d and the moving part main body 7e along the moving groove 7c, the wiring C is wound up or let out.
Note that the moving section main body 7d is arranged on the moving belt 7b side. The moving part main body 7e is arranged on the opposite side to the moving belt 7b.

The rotating part 8 rotates the moving drum 4. The rotating part 8 has a moving sprocket 8a and a sprocket engaging part 8b. When the moving drum 4 moves toward the fixed drum 3 side as driven by the drive source M, the moving sprocket 8a connected to the moving drum 4 rotates along the sprocket engagement portion 8b. As a result, the moving drum 4 also rotates.

The moving sprocket 8a is connected to the main shaft 10 of the moving drum 4. The moving sprocket 8a is formed with grooves, steps (unevenness), etc. over the entire circumference. Therefore, the moving sprocket 8a can rotate while being engaged with the sprocket engaging portion 8b.

The sprocket engaging portion 8b rotates the moving drum 4 as the moving sprocket 8a rotates. The sprocket engaging portion 8b is connected to the main body 2. The sprocket engaging portion 8b can engage with a groove, a step (unevenness), etc. formed on the moving sprocket 8a.

The ON/OFF state of the drive source M is switched by an operation panel (not shown). Thereby, the movement of the moving drum 4 by the moving part 7 and the rotation of the moving sprocket 8a of the rotating part 8 are operated. Further, it is also possible to control the amount of wire C to be fed out or wound up as needed.

Details of the gear portion 12 that constitutes the moving drum 4 and the fixing drum 3 will be described with reference to FIGS. 4 and 5.
When the wiring C to be wound around the moving drum 4 and the fixing drum 3 is let out, the wiring C is let out along the concave passage 4a and the concave passage 3b. At this time, the power for unwinding the wiring C that is wrapped around the side farther from the connection part of the vehicle A (the side closer to the rear end) than the side closer to the connection part of the travel vehicle A (the side that is unwound first) is It's bigger.

At least one of the stationary drum 3 and the moving drum 4 has a gear portion 12 . The gear part 12 transmits rotation (revolution, rotation) when the wiring C is wound up or fed out. The gear portion 12 includes a main shaft 10 , a fixed gear 13 , a main gear 14 , a sub gear 15 , and an adjustment gear 16 . Hereinafter, details will be explained taking as an example a case where the moving drum 4 has the gear portion 12.

A main shaft 10 and a sub-gear shaft 11 are fixed to the moving sprocket 8a and the frame of the concave passage 4a of the moving drum 4. Fixed gear 13 is fixed to main shaft 10 . The auxiliary gear 15 is rotatably (rotatably) supported by the auxiliary gear shaft 11 . As the moving sprocket 8a rotates (revolutions), the fixed gear 13 and the auxiliary gear 15 engage, and the wiring C is wound up or let out. Further, a main gear 14 is rotatably (rotatably) supported on the main shaft 10 . The adjustment gear 16 is connected to the auxiliary gear 15 and does not rotate (rotate). By adjusting the rotation (autorotation) of the main gear 14 and the rotation (autorotation) of the auxiliary gear 15 due to the rotation (revolution) of the moving sprocket 8a through the adjustment gear 16, the power (rotation speed) required for wiring within the drum can be adjusted. ) is adjusted.

The main shaft 10 is the main shaft of the moving drum 4, and is inserted through the center of the moving drum 4. Further, the main shaft 10 passes through the center of the moving sprocket 8a and is connected to the moving shaft 7a.

Fixed gear 13 is fixed to main shaft 10 . Therefore, the fixed gear 13 moves without rotating in conjunction with the moving shaft 7a. The fixed gear 13 is arranged on the movable sprocket 8a side, that is, on the rearmost (end) side of the wiring C.

The main gear 14 is rotatably (rotatably) supported by the main shaft 10 . The fixed gear 13 is fixed to the main shaft 10 and serves as the basis for transmitting power (rotation speed). The main gear 14 adjusts the necessary power (rotation speed) within the concave passage 4a of each moving drum 4. The number of gear parts 12 is determined according to the number of concave passages 4a. The diameter of the main gear 14 is set to be larger on the side closer to the connection part of the traveling vehicle A, that is, on the side that is first fed out. The diameter of the main gear 14 is set to be smaller on the side far from the connection part of the traveling vehicle A, that is, on the side near the rearmost end. Thereby, the power (rotation speed) is adjusted. Moreover, the main gear 14 is coupled to the moving drum 4.

The auxiliary gear 15 is rotatably (rotatably) supported by a auxiliary gear shaft 11 connected to the moving drum 4 coupled to the moving sprocket 8a. The secondary gear 15 engages with the fixed gear 13 and the main gear 14. Specifically, the secondary gear 15 separately has a gear that engages with the fixed gear 13 and a gear that engages with the main gear 14. This allows the power (rotation speed) to be adjusted and the gears to mesh with each other efficiently. Note that the auxiliary gear shaft 11 may be connected to the moving sprocket 8a without using the moving drum 4.

The adjustment gear 16 is connected to the auxiliary gear 15 and does not rotate (rotate). The adjustment gear 16 adjusts the rotation (autorotation) of the main gear 14 and the rotation (autorotation) of the auxiliary gear 15 due to the rotation (revolution) of the moving sprocket 8a, thereby adjusting the power (rotation speed) required for wiring within the drum. Adjust.

A case will be described in which the moving drum 4 has four concave passages 4a. At this time, at least three sets of gear parts 12 are required. The gear portion 12 functions by the engagement of the fixed gear 13, the main gear 14, the auxiliary gear 15, and the adjustment gear 16, the rotation (revolution) of the moving sprocket 8a, and the rotation (rotation) of each gear.

As shown in FIG. 5, the first gear portion 12a includes a first fixed gear 13a, a first main gear 14a, a first auxiliary gear 15a, and a first adjustment gear 16a. Similarly, the second and third gear portions 12b and 12c respectively include second and third fixed gears 13b and 13c, second and third main gears 14b and 14c, and second and third auxiliary gears 15b. ~c, and second and third adjustment gears 16b to c. The first gear portion 12a corresponds to the concave passage 4a on the side far from the connecting portion of the traveling vehicle A, that is, on the side close to the rearmost end. The second gear portion 12b corresponds to the concave passage 4a closer to the connecting portion of the traveling vehicle A than the first gear portion 12a. The third gear portion 12c corresponds to the concave passage 4a closer to the connecting portion of the traveling vehicle A than the second gear portion 12b.
The sizes of the main gears 14 are set such that the first main gear 14a>the second main gear 14b>the third main gear 14c. As a result, the power (rotational speed) required for the wiring C is adjusted. This suppresses the bending of the wiring C when the wiring C is wound up or fed out.

The details have been described above, taking as an example the case where the moving drum 4 has the gear part 12. If the moving drum 4 has four concave passages 4a, the fixing drum 3 needs to have three concave passages 3b. By having the fixed drum 3 having the structure of the gear portion 12 described above, the power (rotational speed) required for the wiring C at both ends of the fixed drum 3 and the moving drum 4 can be adjusted, and the deflection of the wiring C can be improved. .

Furthermore, in order to further improve the deflection of the wiring C, an auxiliary roller 9 for supporting the wiring C may be arranged on the moving drum 4. As shown in FIG. 1, the auxiliary roller 9 regulates the wiring C so that it fits within the concave passage 3b of the fixing drum 3 and the concave passage 4a of the moving drum 4.
A plurality of auxiliary roller shafts 9a are fixed to the support portion 18. Each auxiliary roller shaft 9a rotatably supports a plurality of auxiliary rollers 9.

In addition, in order to feed out the wiring C more effectively, a driving source M2 for feeding out is separately arranged between the wiring accommodation device 1 and the traveling vehicle A, and the wiring C is regulated by a feeding roller. Unrolling or winding may also be performed.

As mentioned above, it goes without saying that the present invention is not limited to the embodiments described above, and that the present invention can be modified as appropriate without departing from the spirit thereof.

1 Wiring accommodation device 2 Main body 3 Fixing drum 3a Fixed shaft 3b Fixing drum concave passage 3c Fixing sprocket 3d Fixing belt 4 Moving drum 4a Moving drum concave passage 5 Reducer 6 Drive rotating shaft 7 Moving part 7a Moving shaft 7b Moving belt 7c Moving groove 7d Moving part main body (moving belt side)
7e Moving unit body (opposite side of moving belt)
8 Rotating part 8a Moving sprocket 8b Sprocket engagement groove 9 Auxiliary roller 9a Auxiliary roller shaft 10 Main shaft 11 Secondary gear shaft 12 Gear part 13 Fixed gear 14 Main gear 15 Secondary gear 16 Adjustment gear 17 Connection part 18 Support part C Wiring A Traveling vehicle M Drive source

Claims (7)

The main body and
a fixing drum fixed within the body and wrapping the wiring around a first side of the body;
a moving drum that is housed in the main body and wraps the wiring around a second side of the main body, the moving drum having a main shaft and a sub-gear shaft ;
a moving unit that moves the moving drum relative to the fixing drum;
a rotating part that rotates the moving drum;
A gear unit that transmits rotation during winding and unwinding of the wiring and is disposed on at least one of the fixing drum and the moving drum,
a fixed gear fixed to the main shaft of the moving drum;
a main gear rotatably supported on the main shaft;
a first auxiliary gear that is rotatably supported on the auxiliary gear shaft and engages with the fixed gear;
an adjustment gear that engages with the main gear;
a second auxiliary gear that is rotatably supported on the auxiliary gear shaft, engages with the adjustment gear, and is connected to the adjustment gear at a connecting portion;
a gear portion having;
A wiring accommodation device having. The fixed drum and the moving drum are capable of alternately wrapping the wiring,
The wiring accommodation device according to claim 1. It further has a drive source that rotates the drive rotation shaft,
The moving part is
a moving shaft connected to the moving drum;
a moving part main body connected to the moving shaft;
a moving belt that transmits the rotation of the drive source to the moving unit main body via the driving rotation shaft;
a moving groove for moving the moving part main body as the moving belt rotates;
The wiring accommodation device according to claim 1 or 2. The rotating part is
a moving sprocket connected to the main shaft of the moving drum;
a sprocket engaging portion that rotates the moving drum as the moving sprocket rotates;
The wiring accommodation device according to any one of claims 1 to 3. The gear portion is
a first gear part disposed on the side from which the wiring is fed out, the first gear part having a first main gear having a first diameter;
a second gear part disposed on a side where the wiring is wound up relative to the first gear part, the second gear part having a second main gear having a second diameter; have,
The wiring accommodation device according to any one of claims 1 to 4 . The moving drum further includes an auxiliary roller that supports the wiring.
The wiring accommodation device according to any one of claims 1 to 5 . having a plurality of said moving drums;
the main gear of each of the moving drums has a different diameter;
The wiring accommodation device according to any one of claims 1 to 6.

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