Door slide device and electrical slide door

Abstract

To provide a door slide device capable of being downsized.SOLUTION: A door slide device 13 for sliding a door 11 comprises: a first cable 41; a first end attachment part 42; and a driving device 45. The first end attachment part 42 attaches one end of the first cable 41 to the door 11. The driving device 45 includes a drum 71 and a motor 74. The other end of the first cable 41 is connected to the drum 71. The motor 74 rotates the drum 71 to take up the first cable 41.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a door sliding device and an electric sliding door. [Background technology]

[0002] Devices that automatically open and close gates have been proposed (see, for example, Patent Document 1). The gate drive device in Patent Document 1 is disposed at the bottom of the fence along the sliding direction of the gate body. The gate drive device is provided with a pair of sprocket wheels spaced apart in the sliding direction, a sprocket wound around the pair of sprocket wheels, and a motor that rotates the sprocket wheels. A connecting member that connects to the gate body is connected to the sprocket.

[0003] When the sprocket wheel is rotated by the drive of the motor, the sprocket also rotates, the connecting member connected to the sprocket moves in the sliding direction, and the gate body connected to the connecting member also moves. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 60-23598 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the gate drive device of Patent Document 1 is large in size because it is equipped with a sprocket wheel and a sprocket, and therefore requires securing an installation space.

[0006] An object of the present invention is to provide a door sliding device and an electric sliding door that can be made compact. [Means for solving the problem]

[0007] A door sliding device according to a first aspect of the present invention is a door sliding device for sliding a door, and includes a first cable, a first attachment portion, and a drive device. The first attachment portion attaches one end of the first cable to the door. The drive device has a drum and a motor. The other end of the first cable is connected to the drum. The motor rotates the drum to wind up the first cable. Effect of the Invention

[0008] According to the present invention, it is possible to provide a door sliding device and an electric sliding door that can be made compact. [Brief description of the drawings]

[0009] [Figure 1] 1 is a front view showing an electric sliding door according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a rear view showing the electric sliding door according to the embodiment of the present invention. [Diagram 3] FIG. 2 is a perspective view of the door according to the embodiment of the present invention, viewed from the rear side. [Figure 4] FIG. 2 is a cross-sectional view taken along line CC in FIG. [Diagram 5] 5(a) is an enlarged view of a portion D in FIG. 4, and (b) is an enlarged view of a portion E in FIG. [Figure 6] FIG. 2 is a perspective view of a support member according to an embodiment of the present invention, as viewed from the front side. [Figure 7] 7 is an enlarged view showing the vicinity of the lower pulley mounting bracket of FIG. 6. [Figure 8] 1 is a front view of the vicinity of a drive device of an electric sliding door according to an embodiment of the present invention, viewed from the front direction side. FIG. [Figure 9] FIG. 2 is a cross-sectional view of the section between FF in FIG. [Figure 10] FIG. 1A is an oblique view showing the left end of the first cable of the electric sliding door of an embodiment of the present invention, and FIG. 1B is an oblique view showing the vicinity of the first end mounting portion of the electric sliding door of an embodiment of the present invention. [Figure 11]FIG. 1A is an oblique view showing the right-side end of the second cable of the electric sliding door of the embodiment of the present invention, and FIG. 1B is an oblique view showing the vicinity of the second end mounting portion of the electric sliding door of the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A door sliding device and an electric sliding door according to embodiments of the present invention will be described below with reference to the drawings.

[0011] <Configuration> Fig. 1 is a front view showing the electric sliding door 1 of this embodiment, and Fig. 2 is a rear view showing the electric sliding door 1 of this embodiment.

[0012] The electric sliding door 1 of this embodiment has a door 11, a support member 12, and a door slide device 13. FIG. 3 is a perspective view of the door 11 seen from the rear side. The door 11 can slide horizontally. The door 11 is, for example, a gate. The support member 12 supports the door 11 so that it can slide. The support member 12 is fixed to a fixed object such as the ground G or a floor. In FIG. 1 and FIG. 2, the ground G is shown by a two-dot chain line. The door slide device 13 is disposed on the support member 12. In FIG. 1, the sliding direction is shown as A, and the sliding direction A is along the horizontal direction. In the sliding direction A, the closing direction (left direction when looking at the door 11 from the front) is shown by an arrow A1, and the opening direction (right direction when looking at the door 11 from the front) is shown by an arrow A2. In FIG. 3, the direction from the rear side to the front side is shown as a front direction B1, and the direction from the front side to the rear side is shown as a back direction B2. The sliding direction A is a direction in which the door is opened and closed, and may be a vertical direction or a downward inclination direction with respect to the horizontal direction other than the horizontal direction.

[0013] (Door 11) As shown in FIG. 3, the door 11 has a left frame 21 (an example of one end), a right frame 22 (an example of the other end), an upper frame 23, a lower frame 24, a vertical bar 25, a plurality of horizontal bars 26, a plurality of horizontal bars 27, an upper rail portion 28, and a lower rail portion 29.

[0014] The left frame 21 is arranged along the vertical direction. The right frame 22 is arranged along the vertical direction. The right frame 22 is arranged opposite to the left frame 21. The left frame 21 and the right frame 22 are arranged side by side along the sliding direction A. The right frame 22 is arranged on the right direction A2 side of the left frame 21. The upper frame 23 connects the upper end of the left frame 21 and the upper end of the right frame 22. The upper frame 23 is arranged along the sliding direction A. The lower frame 24 connects the lower end of the left frame 21 and the lower end of the right frame 22. The lower frame 24 is arranged along the sliding direction A. The left frame 21, the right frame 22, the upper frame 23, and the lower frame 24 form the outer frame of the door 11. In this specification, the terms "vertical direction", "horizontal direction", and "parallel" do not have strict meanings, but include errors, and include what is recognized as "vertical direction", "horizontal direction", and "parallel" in social conventions.

[0015] The vertical bars 25 are disposed between the left frame 21 and the right frame 22. The vertical bars 25 are disposed along the vertical direction. The vertical bars 25 connect the upper frame 23 and the lower frame 24. A plurality of horizontal bars 26 connect the left frame 21 and the vertical bars 25. Each horizontal bar 26 is disposed along the sliding direction A. The multiple horizontal bars 26 are disposed side by side in the vertical direction. A plurality of horizontal bars 27 connect the right frame 22 and the vertical bars 25. Each horizontal bar 27 is disposed along the sliding direction A. The multiple horizontal bars 27 are disposed side by side in the vertical direction.

[0016] The upper rail portion 28 is disposed on the upper frame 23. FIG. 4 is a cross-sectional view of the section CC in FIG. 1. FIG. 5(a) is an enlarged view of a portion D in FIG. 4. The upper rail portion 28 is supported by the support member 12. The upper rail portion 28 is disposed in a recess 23b formed on a surface 23a on the back direction B2 side of the upper frame 23. The upper rail portion 28 has a fitting protrusion 281 and a restricting protrusion 282. The fitting protrusion 281 is formed to protrude upward from the lower surface 23c of the recess 23b. The fitting protrusion 281 is formed to extend along the sliding direction A. The fitting protrusion 281 is plate-shaped. It fits into a groove 361a of an upper pulley 36 of the support member 12 described later. The restricting protrusion 282 is formed to protrude upward from the end of the lower surface 23c on the surface 23a side. The restricting protrusion 282 restricts the upper pulley 36 from falling off from the recess 23b. The restricting protrusion 282 is formed along the sliding direction A.

[0017] The lower rail portion 29 is disposed on the lower frame 24. FIG. 5(b) is an enlarged view of the E portion of FIG. 4. The lower rail portion 29 is supported by the support member 12. The lower rail portion 29 is disposed in a recess 24b formed on the surface 24a on the back direction B2 side of the lower frame 24. The lower rail portion 29 has a fitting protrusion 291 and a regulating protrusion 292. The fitting protrusion 291 is formed to protrude downward from the upper surface 24c of the recess 24b. The fitting protrusion 291 is formed to extend along the sliding direction A. The fitting protrusion 291 is plate-shaped. It fits into a groove 381a of the lower pulley 38 of the support member 12 described later. The regulating protrusion 292 is formed to protrude downward from the end of the surface 24a side of the upper surface 24c. The regulating protrusion 292 regulates the lower pulley 38 from falling off from the recess 24b. The restricting protrusion 292 is formed along the sliding direction A.

[0018] (Support member 12) Fig. 6 is a perspective view of the support member 12 as viewed from the front side. The support member 12 has a left support frame 31 (an example of a support pillar), a right support frame 32 (an example of a support pillar), an upper support frame 33, a lower support frame 34 (see Fig. 7), an upper pulley mounting bracket 35, a plurality of upper pulleys 36 (an example of a plurality of pulley members), a lower pulley mounting bracket 37, and a plurality of lower pulleys 38 (an example of a plurality of pulley members). The upper support frame 33 and the upper pulley mounting bracket 35 correspond to an example of a connecting member. Also, the lower support frame 34 and the lower pulley mounting bracket 37 correspond to an example of a connecting member.

[0019] The left support frame 31 is fixed to a floor or the ground. The left support frame 31 is arranged along the vertical direction. The right support frame 32 is fixed to a floor or the ground. The right support frame 32 is arranged along the vertical direction. The right support frame 32 is arranged on the right direction A2 side of the left support frame 31. The distance between the left support frame 31 and the right support frame 32 is formed to be narrower than the distance between the left frame 21 and the right frame 22 of the door 11. The right support frame 32 is arranged opposite to the left support frame 31 in the sliding direction A. The upper support frame 33 connects the upper ends of the left support frame 31 and the right support frame 32. The upper support frame 33 is arranged along the sliding direction A. FIG. 7 is a diagram showing the vicinity of the lower support frame 34 and the lower pulley mounting bracket 37. The right support frame 32 is omitted in FIG. 7. The lower support frame 34 is arranged below the upper support frame 33. The lower support frame 34 connects the lower parts of the left support frame 31 and the right support frame 32. The lower support frame 34 is arranged along the sliding direction A. The lower support frame 34 is arranged facing the upper support frame 33 in the up-down direction. The door slide device 13 is placed on the lower support frame 34.

[0020] As shown in FIG. 6, the upper pulley mounting bracket 35 is disposed on the front direction B1 side of the upper support frame 33. The upper pulley mounting bracket 35 has an outer bracket 351 and an inner bracket 352. The outer bracket 351 is attached to the upper support frame 33. As shown in FIG. 5(a) and FIG. 6, the outer bracket 351 is a member having a substantially U-shape in cross section. The opening of the U-shape of the outer bracket 351 faces the back direction B2 side. The outer bracket 351 has a flat portion 351a (an example of a side surface) facing the opening. The flat portion 351a is disposed along the up-down direction. The outer bracket 351 is fixed to the upper support frame 33 such that the opening of the U-shape is blocked by the upper support frame 33.

[0021] The inner bracket 352 is disposed between the outer bracket 351 and the upper support frame 33. The inner bracket 352 is a member that is substantially U-shaped in cross section. The opening of the U-shape of the inner bracket 352 faces the rear direction B2. The inner bracket 352 has a flat surface 352a that faces the opening. The flat surface 352a is disposed along the up-down direction. The flat surface 352a is disposed parallel to the flat surface 351a. The inner bracket 352 is fixed to the outer bracket 351.

[0022] As shown in FIG. 6, the upper pulley 36 is rotatably attached to the upper pulley mounting bracket 35. As shown in FIG. 5(a), the upper pulley 36 has a wheel portion 361 and a support shaft 362. The wheel portion 361 is rotatably supported by the support shaft 362. The support shaft 362 is inserted into a through hole formed in the flat portion 351a of the outer bracket 351 and fixed to the flat portion 352a of the inner bracket 352. In this embodiment, the two upper pulleys 36 are arranged side by side along the sliding direction A. A groove 361a is formed in the wheel portion 361 of the upper pulley 36 along the circumferential direction. As shown in FIG. 5(a), the wheel portion 361 is arranged in the recess 23b. The fitting protrusion 281 fits into the groove 361a of the wheel portion 361. A restricting protrusion 282 is arranged on the back direction B2 side of the wheel portion 361. A part of the restricting protrusion 282 overlaps with the wheel portion 361 in the vertical direction.

[0023] As shown in FIG. 6, the lower pulley mounting bracket 37 is disposed on the back direction B2 side of the lower support frame 34. As shown in FIG. 7 and FIG. 5(b), the lower pulley mounting bracket 37 has an outer bracket 371 and an inner bracket 372. The outer bracket 371 is attached to the lower support frame 34. As shown in FIG. 6(b), the outer bracket 371 is a member having a substantially U-shape in cross section. The opening of the U-shape of the outer bracket 371 faces the back direction B2. The outer bracket 371 has a flat portion 371a (an example of a side surface) facing the opening. The flat portion 371a is disposed along the up-down direction. The outer bracket 371 is fixed to the lower support frame 34 so that the opening of the U-shape is blocked by the lower support frame 34.

[0024] The inner bracket 372 is disposed between the outer bracket 371 and the lower support frame 34. The inner bracket 372 is a member that is generally U-shaped in cross section. The opening of the U-shape of the inner bracket 372 faces the rear direction B2. The inner bracket 372 has a flat surface 372a that faces the opening. The flat surface 372a is disposed along the up-down direction. The flat surface 372a is disposed parallel to the flat surface 371a. The inner bracket 372 is fixed to the outer bracket 371.

[0025] The lower pulley 38 is rotatably attached to the lower pulley mounting bracket 37 as shown in FIG. 6. The lower pulley 38 has a wheel portion 381 and a support shaft 382 as shown in FIG. 5(b). The wheel portion 381 is rotatably supported by the support shaft 382. The support shaft 382 is inserted into a through hole formed in the flat portion 371a of the outer bracket 371 and fixed to the flat portion 372a of the inner bracket 372. In this embodiment, the two lower pulleys 38 are arranged side by side along the sliding direction A. A groove 381a is formed in the wheel portion 381 of the lower pulley 38 along the circumferential direction. As shown in FIG. 5(b), the wheel portion 381 is arranged in the recess 24b. The fitting protrusion 291 fits into the groove 381a of the wheel portion 381. A restricting protrusion 292 is arranged on the back direction B2 side of the wheel portion 381. A part of the restricting protrusion 292 overlaps with the wheel portion 381 in the vertical direction.

[0026] As described above, the multiple upper pulleys 36 of the support member 12 engage with the mating protrusions 281 of the upper rail portion 28, and the multiple lower pulleys 38 engage with the mating protrusions 291 of the lower rail portion 29, thereby allowing the support member 12 to slidably support the door 11.

[0027] (Door sliding device 13) As shown in Fig. 2, the door sliding device 13 has a first cable 41, a first end mounting portion 42 (an example of a first mounting portion), a second cable 43, a second end mounting portion 44 (an example of a second mounting portion), a driving device 45 (see Fig. 8), a housing 46, and a controller 47 (see Fig. 8). Fig. 8 is a front view of the vicinity of the driving device 45 as viewed from the front direction B1 side. Fig. 9 is a cross-sectional view of the FF interval in Fig. 1. As shown in Figs. 8 and 9, the driving device 45 is covered by the housing 46.

[0028] (First Cable 41) 2, an end of the first cable 41 on the left direction A1 side is attached to the left frame 21 of the door 11 via a first end attachment portion 42. An end of the first cable 41 on the right direction A2 side is attached to a drum 71 of the drive device 45. The first cable 41 extends from the drive device 45 toward the left direction A1. The first cable 41 extends from a lower portion of the drum 71 of the drive device 45 toward the left direction A1 through a drum housing 73 and an opening of the housing 46.

[0029] Fig. 10(a) is a perspective view showing an end of the first cable 41 on the left direction A1 side. As shown in Fig. 10(a), the first cable 41 has a cable main body 41a and an end portion 41b. The end portion 41b is attached to the end of the cable main body 41a. The end portion 41b is a cylindrical member.

[0030] (First end attachment portion 42) 10(b) is a perspective view showing the vicinity of the first end mounting portion 42 of the electric sliding door 1. The first end mounting portion 42 is disposed at the lower part of the left frame 21. The first end mounting portion 42 is disposed above the bottom frame 24.

[0031] As shown in Fig. 10(b), the first end mounting portion 42 has a fixing portion 51 and an engagement portion 52. The fixing portion 51 is plate-shaped, and is fixed to the surface 21a on the rear direction B2 side of the left frame 21 by screws or the like. The engagement portion 52 is disposed on the surface 51a on the rear direction B2 side of the fixing portion 51. The engagement portion 52 has a substantially rectangular prism shape. The engagement portion 52 engages the first cable 41.

[0032] The locking portion 52 has an internal space 521, an insertion groove portion 522, and an abutment portion 523. The internal space 521 is a cylindrical space formed in the locking portion 52 along the sliding direction A. The internal space 521 is formed from the left end face 52a on the left direction A1 side of the locking portion 52 toward the right end face 52b on the right direction A2 side. An opening 524 of the internal space 521 is formed in the left end face 52a. The end of the internal space 521 on the right end face 52b side is closed, but a groove 525 is formed. The groove 525 is formed downward from the insertion groove portion 522. The groove 525 is formed approximately to the central axis of the internal space 521.

[0033] The insertion groove 522 is formed on the upper surface 52c of the locking portion 52 along the sliding direction A. The insertion groove 522 communicates the outside of the locking portion 52 with the internal space 521. The insertion groove 522 is formed from the left end surface 52a to the right end surface 52b. The cable main body 41a is inserted into the internal space 521 through the insertion groove 522. The abutment portion 523 is disposed in the internal space 521. The end portion 41b of the first cable 41 abuts against the abutment portion 523. The abutment portion 523 is plate-shaped and disposed along the up-down direction. The abutment portion 523 divides the internal space 521 into left and right spaces. The abutment portion 523 has a groove 526 formed downward from the insertion groove 522. The groove 526 is formed approximately to the central axis of the internal space 521.

[0034] When attaching the first cable 41 to the first end mounting portion 42, the cable main body 41a is inserted into the internal space 521 through the insertion groove portion 522. At this time, the cable main body 41a is inserted into the grooves 525 and 526. In this state, by pulling the first cable 41 toward the right direction A2, the end portion 41b is inserted into the internal space 521 from the opening 524 of the left end face 52a. As a result, when the first cable 41 is pulled in the right direction A2, the end portion 41b abuts against the abutment portion 523 of the first end mounting portion 42, and therefore the door 11 can be moved in the right direction A2.

[0035] (Second Cable 43) An end of the second cable 43 on the right direction A2 side is attached to an end of the door 11 on the right direction A2 side via a second end attachment portion 44. An end of the second cable 43 on the left direction A1 side is attached to a drum 71 of the drive device 45. The second cable 43 extends from the drive device 45 toward the right direction A2. The second cable 43 extends from a lower portion of the drum 71 of the drive device 45 toward the right direction A2 through a drum housing 73 and an opening of the housing 46.

[0036] Fig. 11(a) is a perspective view showing an end of the second cable 43 on the right direction A2 side. As shown in Fig. 11(a), the second cable 43 has a cable main body 43a and an end portion 43b. The end portion 43b is attached to the end of the cable main body 43a. The end portion 43b is a cylindrical member.

[0037] (Second end mounting portion 44) 11(b) is a perspective view showing the vicinity of the second end mounting portion 44 of the electric sliding door 1. The second end mounting portion 44 is disposed at the lower part of the right frame 22. The second end mounting portion 44 is disposed above the bottom frame 24. The second end mounting portion 44 is disposed so as to face the first end mounting portion 42 in the sliding direction A.

[0038] As shown in Fig. 11(b), the second end mounting portion 44 has a fixing portion 61 and an engagement portion 62. The fixing portion 61 is plate-shaped, and is fixed to the surface 22a on the rear direction B2 side of the right frame 22 by screws or the like. The engagement portion 62 is disposed on the surface 61a on the rear direction B2 side of the fixing portion 61. The engagement portion 62 has a substantially rectangular prism shape. The engagement portion 62 engages the second cable 43.

[0039] The locking portion 62 has an internal space 621, an insertion groove portion 622, and an abutment portion 623. The internal space 621 is a cylindrical space formed in the locking portion 62 along the sliding direction A. The internal space 621 is formed from a right end face 62a on the right direction A2 side of the locking portion 62 toward a left end face 62b on the left direction A1 side. An opening 624 of the internal space 621 is formed in the right end face 62a. The end of the internal space 621 on the left end face 62b side is closed, but a groove 625 is formed therein. The groove 625 is formed downward from the insertion groove portion 622. The groove 625 is formed approximately to the central axis of the internal space 621.

[0040] The insertion groove 622 is formed on the upper surface 62c of the locking portion 62 along the sliding direction A. The insertion groove 622 communicates the outside of the locking portion 62 with the internal space 621. The insertion groove 622 is formed from the right end surface 62a to the left end surface 62b. The cable main body 43a is inserted into the internal space 621 through the insertion groove 622. The abutment portion 623 is disposed in the internal space 621. The end portion 43b of the second cable 43 abuts against the abutment portion 623. The abutment portion 623 is plate-shaped and disposed along the up-down direction. The abutment portion 623 divides the internal space 621 into left and right spaces. The abutment portion 623 has a groove 626 formed downward from the insertion groove 622. The groove 626 is formed approximately to the central axis of the internal space 621.

[0041] When attaching the second cable 43 to the second end mounting portion 44, the cable main body 43a is inserted into the internal space 621 through the insertion groove portion 622. At this time, the cable main body 43a is inserted into the grooves 625 and 626. In this state, by pulling the second cable 43 toward the left direction A1, the end portion 43b is inserted into the internal space 621 from the opening 624 of the right end face 62a. As a result, when the second cable 43 is pulled in the left direction A1, the end portion 43b abuts against the abutment portion 623 of the second end mounting portion 44, and therefore the door 11 can be moved in the left direction A1.

[0042] (Driver 45) As shown in Figs. 8 and 9, the driving device 45 has a drum 71, a rotating shaft 72, a drum housing 73, and a motor 74. The drum 71 rotates about an axis O (see Fig. 9) parallel to the front direction B1 and the back direction B2. An end of the first cable 41 on the right direction A2 side and an end of the second cable 43 on the left direction A1 side are connected to the drum 71. When the drum 71 rotates in one direction, the first cable 41 is wound up and the second cable 43 is unwound. When the drum 71 rotates in the other direction, the second cable 43 is wound up and the first cable 41 is unwound.

[0043] The rotating shaft 72 supports the drum 71. The rotating shaft 72 is disposed along an axis O. The drum 71 is, for example, spline-connected to the rotating shaft 72. The drum housing 73 accommodates the drum 71. The drum housing 73 rotatably supports the rotating shaft 72. The drum housing 73 supports the drum 71 via the rotating shaft 72. The drum housing 73 is fixed to the upper side of the lower support frame 34.

[0044] The motor 74 rotates the drum 71. The output of the motor 74 is transmitted to the rotary shaft 72 via a reducer, and rotates the rotary shaft 72. The rotation of the rotary shaft 72 rotates the drum 71 coupled to the rotary shaft 72.

[0045] (Controller 47) The controller 47 shown in FIG. 8 includes a processor. The processor is, for example, a CPU (Central Processing Unit). Alternatively, the processor may be a processor different from the CPU. The storage unit may be, for example, an internal register built into the processor, or may be provided separately from the processor. The storage unit may also include a volatile memory such as a RAM (Random Access Memory) and / or a non-volatile memory such as a ROM (Read Only Memory), and may include an auxiliary storage device such as a hard disk or an SSD (Solid State Drive). The storage unit is an example of a non-transitory computer-readable recording medium. The storage unit stores a program and data for controlling the motor 74. The controller 47 outputs a command signal to the motor 74. The controller 47 may be disposed in the drive device 45 or the housing 46, or may be disposed outside the housing 46.

[0046] As shown in Fig. 8, the door sliding device 13 may have a receiving unit 48 that receives an operation signal from a user's operation terminal. When the receiving unit 48 receives the operation signal from the operation terminal, the controller 47 may output a command signal to the motor 74. The user's operation terminal may be, for example, a remote controller or a mobile terminal. The operation signal may be transmitted from the operation terminal to the receiving unit 48 wirelessly, for example.

[0047] When the controller 47 receives an operation signal from the user's operation terminal, it outputs a command signal to the motor 74, which drives the motor 74 to rotate the drum 71. As a result, one of the first cable 41 and the second cable 43 is wound up and the other is unwound, causing the door 11 to slide relative to the support member 12.

[0048] The controller 47 acquires a current value or a voltage value of the motor 74. If the acquired value is equal to or greater than a predetermined value, the controller 47 determines that the load on the motor 74 is equal to or greater than a predetermined value, and outputs a command signal to the motor 74 to stop the rotation of the drum 71 or to rotate the drum 71 in the reverse direction. The predetermined value is stored in the storage unit. This makes it possible to stop the movement of the door 11 or open the door 11 if something gets caught when the door 11 is being closed, for example.

[0049] <Operation> For example, the door 11 is opened when it is slid in the right direction A2, and closed when it is slid in the left direction A1. In this case, FIG. 1 shows the door 11 in the closed state.

[0050] (Door opening operation) When the controller 47 receives an operation signal to open the door from the user's operation terminal, it outputs a command signal to the motor 74 so that the drum 71 rotates to take up the first cable 41 and pay out the second cable 43.

[0051] Since the end portion 41b of the first cable 41 abuts against the abutment portion 523 of the locking portion 52, the first end mounting portion 42 is pulled in the right direction A2 by winding up the first cable 41, and the door 11 slides in the right direction A2.

[0052] After driving the motor 74 for a preset predetermined time, the controller 47 stops the motor 74. This causes the door 11 to enter an open state.

[0053] The controller 47 acquires a current value or a voltage value while driving the motor 74, and when the acquired value reaches or exceeds a predetermined value, outputs a command signal to the motor 74 to stop the rotation of the drum 71 or to reverse the rotation of the drum 71. This makes it possible to stop the movement of the door 11 or close the door 11 if something gets caught in the door 11 when it is opened, for example.

[0054] (Door closing operation) Furthermore, when controller 47 receives an operation signal to close the door from the user's operation terminal, it outputs a command signal to motor 74 so that drum 71 rotates to wind up second cable 43 and pay out first cable 41.

[0055] Since the end portion 43b of the second cable 43 abuts against the abutment portion 623 of the locking portion 62, the second end mounting portion 44 is pulled in the left direction A1 by winding up the second cable 43, and the door 11 slides in the left direction A1.

[0056] After driving the motor 74 for a preset predetermined time, the controller 47 stops the motor 74. As a result, the door 11 is brought into a closed state.

[0057] The controller 47 acquires a current value or a voltage value while driving the motor 74, and when the acquired value reaches or exceeds a predetermined value, outputs a command signal to the motor 74 to stop the rotation of the drum 71 or to reverse the rotation of the drum 71. This makes it possible to stop the movement of the door 11 or to open the door 11 if something gets caught in the door 11 when it is being closed, for example.

[0058] <Features> In the door sliding device 13 of this embodiment, the door 11 can be slid simply by winding up the first cable 41, so a large-scale mechanism is not required and the device can be made compact. In addition, since the door 11 is slid by winding up the cable, the operating noise can be reduced compared to a mechanism that uses a rack and pinion or a sprocket.

[0059] In the door sliding device 13 of this embodiment, the door 11 can be slid by winding up one of the first cable 41 and the second cable 43 and letting out the other, so that the device can be made compact without requiring a large-scale mechanism.

[0060] In the door sliding device 13 of this embodiment, when the drum 71 is rotated to wind up the first cable 41 or the second cable 43, if the load on the motor 74 reaches a predetermined level, the rotation of the drum 71 is stopped or the drum is rotated in the reverse direction. This makes it possible to stop the movement of the door 11 or open the door if something gets caught in the door 11 when opening or closing it.

[0061] In the electric sliding door 1 of this embodiment, since the drive device 45 can be disposed on the support member 12, there is no need to secure a large installation space.

[0062] In the electric sliding door 1 of this embodiment, the drive unit 45 is disposed in the lower support frame 34. In this way, the drive unit 45 can be disposed between the left support frame 31 and the right support frame 32, thereby further saving space.

[0063] In the electric sliding door 1 of this embodiment, the door 11 has an upper rail portion 28 arranged along the sliding direction A and engaging with an upper pulley 36, and a lower rail portion 29 arranged along the sliding direction A and engaging with a lower pulley 38. This allows the door 11 to slide relative to the support member 12.

[0064] (Other embodiments) Although one embodiment of the present disclosure has been described above, the present disclosure is not limited to the above embodiment, and various modifications are possible without departing from the gist of the present disclosure.

[0065] (A) In the above embodiment, both the first cable 41 and the second cable 43 are provided, but only one of them may be provided and either the opening or closing of the door 11 may be performed by winding up the cable. For example, when the door 11 is opened by a cable, the door 11 may be closed by its own weight due to the inclination. In addition, the first cable 41 and the second cable 43 may be a cable made of twisted metal wires or a cable made of twisted metal wires with a resin coating on the outer periphery.

[0066] (B) In the above embodiment, it has been described that an operation signal is transmitted from a user's mobile terminal or a remote controller to the door sliding device 13, but this is not limiting, and for example, a switch may be provided on a wall or the like, and an operation signal may be transmitted to the door sliding device 13 by operating the switch. Also, it has been described that the operation signal is transmitted wirelessly to the door sliding device 13, but it is not limited to wireless, and may be wired.

[0067] (C) In the above embodiment, the driving device 45 is disposed in the lower support frame 34 of the support member 12, but this is not limiting and, for example, the driving device 45 may be disposed in the upper support frame 33 of the support member 12. In addition, the driving device 45 does not have to be disposed in the support member 12, but it is preferable to dispose the driving device 45 in the support member 12 from the viewpoint of space saving.

[0068] (D) In the above embodiment, the door 11 has been described as a gate, but the door is not limited to a gate and may be any door that slides.

[0069] (E) In the above embodiment, the door 11 is slid relative to the support member 12 by fitting the pulley and the rail portion, but this is not limiting and, for example, a slider or the like may be used. In order to slidably hold the door 11, the support member 12 can have a guide portion for guiding the door 11 in the sliding direction on either the support member 12 or the door 11, and a guided portion on the other of the support member 12 or the door 11. This eliminates the need to separately provide a guide member such as a rail on a fixed object such as the ground, improving layout flexibility.

[0070] (F) In the above embodiment, the support member 12 holds the door 11 slidably using a pair of pillars consisting of a left support frame 31 and a right support frame 32, but this is not limited to this and, for example, the door 11 may be held by a single pillar or multiple pillars.

[0071] (G) In the above embodiment, the first cable 41 and the second cable 43 are routed in an exposed state, but a member for covering the first cable 41 and the second cable 43 may be provided, and a structure may be provided in which the door is provided with a groove in which the first cable 41 and the second cable 43 are routed. This makes it possible to prevent the cables from getting wet when the door is placed outdoors. [Industrial Applicability]

[0072] INDUSTRIAL APPLICABILITY The door sliding device and the electric sliding door of the present invention have the effect of enabling miniaturization, and are useful for sliding doors such as gates. [Explanation of symbols]

[0073] 11: Door 13: Door sliding device 41: First cable 42: First end attachment part 45: Drive unit 71: Drums 74: Motor

Claims

1. A door sliding device for sliding a door, A first cable; a first attachment portion that attaches one end of the first cable to the door; A door sliding device comprising: a drive device having a drum to which the other end of the first cable is connected; and a motor that rotates the drum to wind up the first cable.

2. a second cable having one end connected to the drum; A second attachment portion that attaches the other end of the second cable to the door, The first attachment portion is disposed at one end of the door, and the second attachment portion is disposed at the other end of the door, The drive device unwinds the second cable when winding the first cable, and winds the second cable when unwinding the first cable. The door sliding device according to claim 1.

3. The winding machine further includes a controller that stops the rotation of the drum or rotates the drum in a reverse direction when a load on the motor becomes equal to or greater than a predetermined value when the drum is rotated in a predetermined direction to wind up the first cable or the second cable. The door sliding device according to claim 2.

4. The door; A support member that slidably supports the door; The door slide device according to any one of claims 1 to 3, which is disposed on the support member, Electric sliding door.

5. The support member is A pair of support pillars arranged opposite to each other in the sliding direction of the door; A connecting member is disposed between the pair of columns and connects the pair of columns, The drive device is disposed on the connection member. The electric sliding door according to claim 4.

6. The support member has a plurality of pulley members arranged on a side surface of the connection member on which the door is arranged, The door is disposed on the support member side along the sliding direction and has a rail portion that engages with the plurality of pulley members. The electric sliding door according to claim 5.

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