JP2018187997A - Rope drive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rope drive device which can arbitrarily set respective operational feeling when driving a driven object in both rotation directions.SOLUTION: In a rope drive device 10, a wire rope unit 14 is bridged between an input pulley 21 in an input housing 20 and an output pulley 32 in an output housing 31 which are provided at both end parts of an outer tube 13, the wire rope unit 14 has a first wire rope 15 which rotates the output pulley 32 in a first rotation direction while being pulled against a first slide resistance when rotating the input pulley 21 in the first rotation direction, and a second wire rope 16 which rotates the output pulley 32 in a second rotation direction while being pulled against a second slide resistance when rotating the input pulley 21 in the second rotation direction opposite to the first rotation direction, and the first slide resistance is differed from the second slide resistance.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a rope drive device that transmits a clockwise rotation and a counterclockwise rotation of an input pulley to an output pulley via wire ropes to drive a driven body.

  A rope drive device using a wire rope includes, for example, an operation unit including an input pulley, an output unit including an output pulley, an outer tube disposed between the operation unit and the output unit, an input pulley, and an output. It has the 1st and 2nd wire rope fixed to the tension state via the outer tube between the pulleys (patent documents 1-3). When the input pulley is rotated in the clockwise direction, the first wire rope is pulled and the output pulley is rotated in the clockwise direction to drive the driven body in the clockwise direction. On the other hand, when the input pulley is rotated in the counterclockwise direction, the second wire rope is pulled, and the output pulley is rotated in the counterclockwise direction to drive the driven body in the counterclockwise direction.

  In such a rope drive device, the input unit is attached to, for example, a heat control (so-called heat-con) panel of an automobile air conditioner, and an operation dial is attached to an input shaft fixed to the input pulley. Moreover, the output part of a rope drive device is attached to the ventilation duct of an air conditioner, and the drive shaft of the opening / closing door arrange | positioned in a ventilation duct is connected with the output shaft of an output pulley.

  Depending on the arrangement direction of the drive shaft, the mounting state of the door with respect to the drive shaft, etc., when the door is operated in the opening direction and when it is operated in the closing direction, the torque applied to the drive shaft may be the same as when the torque is different.

  For example, in a horizontal shaft configuration in which one end of one door is fixed to the drive shaft and the drive shaft is disposed in the horizontal direction, when the door rotates from the closed position in the vertical position to the open direction in the horizontal direction, The driving torque for the opening operation applied is different from the driving torque for the closing operation applied to the drive shaft when rotating in the closing direction. That is, when the input pulley of the rope drive device is rotated clockwise, for example, and the door is rotated in the opening direction, the door is rotated in the opening direction by the weight of the door. On the other hand, when the input pulley is rotated in the counterclockwise direction, for example, and the door is rotated in the closing direction, the door is driven in the closing direction against the dead weight of the door, so the driving torque for the closing operation is opened. It becomes larger than the driving torque of operation.

  In addition, in a vertical shaft configuration in which the drive shaft is arranged in the vertical direction, the driving torque is not affected by the weight of the open / close door even if the drive shaft is rotated clockwise or counterclockwise. It will be the same.

JP 2004-210188 A JP-T-2006-512961 US Pat. No. 5,555,769

  By the way, when the open / close door is driven to open and close the air conditioner having a horizontal axis configuration by a conventional rope drive device, the operation feeling when pulling the first wire rope by operating the operation dial clockwise is light and counterclockwise. The feeling of operation when pulling the second wire rope by operating in the direction is heavy. For this reason, when pulling a 1st wire rope and a 2nd wire rope, respectively, the same operation feeling is obtained and it is desired that it can operate smoothly.

  On the other hand, when the opening / closing door is driven to open and close the air conditioner having the vertical axis configuration by the conventional rope drive device, the operation dial is operated clockwise to pull the first wire rope and counterclockwise. The feeling of operation when pulling the second wire rope is equal. For this reason, it is desirable that a difference is provided in the operational feeling when pulling the first wire rope and when pulling the second wire rope, and for example, whether or not the operation is performed in the closing direction can be determined sensuously.

  An object of the present invention is to provide a rope drive device that can arbitrarily set an operation feeling when driving a driven body in both rotational directions.

  A first configuration of a rope drive device that realizes the object of the present invention includes: an input unit that rotatably accommodates an input pulley in an input housing; an output unit that rotatably accommodates an output pulley in an output housing; A wire rope unit that is spanned between the input pulley and the output pulley, and an outer tube that is disposed between the input housing and the output housing and holds the wire rope of the wire rope unit that is passed through in a tensioned state. And the wire rope unit is configured to pull the output pulley in the first rotational direction while being pulled against the first sliding resistance when the input pulley is rotated in the first rotational direction. A first wire rope to be rotated and a second slide when the input pulley is rotated in a second rotation direction opposite to the first rotation direction. A second wire rope that rotates the output pulley in the second rotation direction while being pulled against resistance, wherein the first sliding resistance is different from the second sliding resistance. And

  The second configuration of the rope drive device that realizes the object of the present invention is the difference between the first sliding resistance and the second sliding resistance in the first configuration described above. The second wire rope is created with a large or small diameter.

  According to a third configuration of the rope drive device that realizes the object of the present invention, in any one of the configurations described above, the difference between the first sliding resistance and the second sliding resistance is that the first wire rope and the It creates by the difference in the twist structure of a 2nd wire rope, It is characterized by the above-mentioned.

  According to a fourth configuration of the rope driving device that realizes the object of the present invention, in any one of the configurations described above, the difference between the first sliding resistance and the second sliding resistance is that the first wire rope and the The second wire rope is created by the difference in the bending radius of the sliding mating part on which the second wire rope slides.

  According to a fifth configuration of the rope driving device for realizing the object of the present invention, in any one of the second to fourth configurations described above, the first wire rope and the second wire rope are wires having a smaller diameter. The rope is shorter than the wire rope with the larger diameter, and both ends of the first wire rope and the second wire rope are fixed by fixtures, and the fixtures are fixed to the input pulley and the output pulley. It is characterized by that.

  According to a sixth configuration of the rope driving device that realizes the object of the present invention, in any one of the configurations described above, the first driven body driven to rotate by the output pulley is driven in the first rotation direction. The second sliding resistance is smaller than the first sliding resistance when the second driving torque when driven in the second rotational direction is larger than the driving torque.

  According to a seventh configuration of the rope drive device that realizes the object of the present invention, in any of the first to fifth configurations described above, a driven body that is rotationally driven by the output pulley is driven in the first rotational direction. The second sliding resistance is smaller than the first sliding resistance when the first driving torque at the time of driving and the second driving torque at the time of driving in the second rotational direction are equal.

  According to an eighth configuration of the rope drive device that realizes the object of the present invention, in any one of the first to fifth configurations described above, the driven body that is rotationally driven by the output pulley moves in the first rotational direction. The second sliding resistance is smaller than the first sliding resistance when the driving is more alert than the driving in the second rotational direction.

  According to the first aspect of the invention, the input pulley is moved in the first rotation direction and the second rotation direction by making the first sliding resistance of the first wire rope different from the second sliding resistance of the second wire rope. The operation torque at the time of the rotation operation can be arbitrarily set, and various operation feelings can be obtained according to the configuration, function, etc. of the driven body rotated by the output pulley.

  According to the second aspect of the present invention, the first sliding resistance and the second sliding resistance can be made different with a simple configuration.

  According to the invention of claim 3, since the wire rope having a simple twist configuration has a smaller sliding resistance, a small operation torque can be obtained.

  According to the invention of claim 4, the first sliding resistance and the second sliding resistance can be made different by adjusting the radius of the pedestal provided as the sliding counterpart on the input housing or output housing side. In particular, the first sliding resistance and the second sliding resistance can be further differentiated by a combination with the first and second wire ropes having different diameters.

  According to the invention which concerns on Claim 5, elongation of a 1st wire rope and a 2nd wire rope can be made equal.

  According to the invention which concerns on Claim 6, the operation feeling of a 1st rotation direction and a 2nd rotation direction can be made equal.

  According to the seventh aspect of the present invention, the operational feeling in the first rotational direction and the second rotational direction can be made different, and the direction in which the driven body is rotationally driven can be recognized sensuously. it can.

  According to the eighth aspect of the invention, the operator can be alerted by increasing the operation in the rotational direction with a high degree of attention.

(A) shows the schematic front view which controls the air conditioner of a motor vehicle using 1st Embodiment of the rope drive device by this invention, (b) shows the AA arrow line view of (a). 1st Embodiment of the rope drive device by this invention is shown, and the BB arrow line view of FIG.1 (b) is shown. (A) shows the cross-sectional view of the 1st wire rope in the rope drive device of FIG. 2, (b) shows the cross-sectional view of the 2nd wire rope in the rope drive device of FIG. (A) shows the schematic top view which controls the air conditioner of a motor vehicle using 2nd Embodiment of the rope drive device by this invention, (b) shows CC arrow directional view of (a).

  Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

First Embodiment FIG. 1 (a) shows a schematic front view for controlling an air conditioner of an automobile using a first embodiment of a rope drive device according to the present invention, and FIG. 1 (b) shows an A in FIG. 1 (a). -A shows an arrow view, FIG. 2 shows a first embodiment of a rope drive device according to the present invention, and shows an arrow BB view of FIG. 3A shows a cross-sectional view of the first wire rope in the rope drive device of FIG. 2, and FIG. 3B shows a cross-sectional view of the second wire rope in the rope drive device of FIG.

  In FIG. 1, the air flow rate of the air conditioner 1 is controlled by a rope drive device 10. In the air conditioner 1, an opening / closing door 4, which is a driven body, is attached to an opening 3 provided in the ventilation duct 2 so as to be opened and closed. The lower end of the open / close door 4 is fixed to a drive shaft 5 extending in the horizontal direction. In FIG. 1, three axes orthogonal to each other are an X axis, a Y axis, and a Z axis, the X axis and the Y axis are horizontal axes, and the Z axis is a vertical axis. The drive shaft 5 extends along the Y-axis direction. The opening / closing door 4 is between a fully closed position in a vertical posture along the Z-axis direction that covers the opening 3 by rotation of the drive shaft 5 and a fully open position in a horizontal posture along the X-axis direction that fully opens the opening 3. Can be moved. In FIG. 1A, when the open / close door 4 rotates in the clockwise direction from the closed position toward the open position, the amount of air blown from the ventilation duct 2 into the vehicle increases.

  When the opening / closing door 4 is rotated in the opening direction by rotating the driving shaft 5 in the clockwise direction in the fully closed position in the vertical position shown in FIG. 1A, the driving shaft 5 is rotated clockwise by the dead weight of the opening / closing door 4. Rotational torque in the direction is applied. Therefore, the operation torque applied to the drive shaft 5 to rotate the opening / closing door 4 in the opening direction can be reduced by the rotational torque.

  On the other hand, when the opening / closing door 4 is rotated in the closing direction by turning the driving shaft 5 counterclockwise from the fully open position in the horizontal posture, the operating torque applied to the driving shaft 5 is the reaction against the weight of the opening / closing door 4. The rotational torque in the clockwise direction increases.

  In FIG. 1A and FIG. 2, the rope drive device 10 keeps the input section 11, the output section 12, and the wire rope disposed between the input section 11 and the output section 12 in a tensioned state. An outer tube 13 and a wire rope unit 14. The input unit 11 is attached to a panel of a heat exchanger (not shown), and the output unit 12 is attached to the ventilation duct 2.

  The structure of the rope drive device 10 is demonstrated based on FIG.

  The wire rope unit 14 is configured by fixing both ends of the first wire rope 15 and the second wire rope 16 with a first fixture 17 and a second fixture 18.

  The input unit 11 of the rope drive device 10 includes an input housing 20 in which an input pulley accommodating portion 19 that is cylindrical inside and opens at one end side is formed, and an input pulley 21 that is rotatably disposed in the input pulley accommodating portion 19. Have. An input shaft 22 is fixed to the rotation center of the input pulley 21. The input shaft 22 is pivotally supported by bearing holes (not shown) formed in the front wall portion (not shown) and the back wall portion 23 along the axial direction of the input housing 20. An operation dial 24 is attached to the tip of the input shaft 22.

  The input housing 20 is connected to the open portion of the input pulley accommodating portion 19 to form an outer tube insertion portion 25 for inserting an outer tube having an inner width W1. One end of the outer tube 13 is inserted into the stepped portion 26 at the open end of the outer tube insertion portion 25. The outer diameter (D1) of the input pulley 21 is formed larger than the inner width W1 of the outer tube insertion portion 25, and the inner diameter D2 of the input pulley accommodating portion 19 of the input housing 20 is larger than the outer diameter (D1) of the input pulley 21. Is also formed in a large diameter.

  The input pulley accommodating portion 19 is a first curved portion 27 having a radius R1 as a first pedestal forming a sliding mating portion of the first wire rope 15 formed inwardly from one open end 19a on the inner periphery of the inner diameter D2. Is continuously provided up to one inner end 25a of the outer tube insertion portion 25. The 1st wire rope 15 contacts the 1st curved part 27 which is a 1st base, and is bent. Further, the second curved portion having the radius R2 serves as a second pedestal that forms a sliding counterpart of the second wire rope 16 that is formed inward from the other open end 19b of the inner periphery of the inner diameter D2 of the input pulley accommodating portion 19. 28 is connected to the other inner end 25 b of the outer tube insertion portion 25. The first bending portion 27 and the second bending portion 28 face each other. The 2nd wire rope 16 contacts the 2nd bending part 28 which is a 2nd base, and is bent.

  The input pulley 21 is provided with a first engagement portion 29 with which the first fixing member 17 of the wire rope unit 14 is engaged. The first fixing member 17 is engaged with the first engaging portion 29 and the first wire rope 15 and the second wire rope 16 are passed over the input pulley 21. In the present embodiment, the first wire rope 15 is disposed on the side to be pulled when the input pulley 21 is rotated in the clockwise direction, and the second wire rope 16 is disposed on the side to be pulled when the input pulley 21 is rotated in the counterclockwise direction. doing. In a state in which the wire rope unit 14 is in tension, the first wire rope 15 contacts the first bending portion 27, and the second wire rope 16 contacts the second bending portion 28, and is bent and directed toward the input pulley 21. And spread outward.

  The output unit 12 is configured in the same manner as the input unit 11, and is arranged in an output housing 31 in which an output pulley accommodating unit 30 that is cylindrical and has one end open is formed inside, and is rotatably disposed in the output pulley accommodating unit 30. Output pulley 32. A drive shaft 5 that forms an output shaft is fixed to the rotation center of the output pulley 32. The drive shaft 5 is pivotally supported by bearing holes (not shown) formed in the front wall portion 33 a and the back wall portion 33 b along the axial direction of the output housing 31.

  The output housing 31 is connected to the open portion of the output pulley accommodating portion 30 to form an outer tube insertion portion 34 for inserting an outer tube having an inner width W2. The other end of the outer tube 13 is inserted into the stepped portion 35 at the open end of the outer tube insertion portion 34. The outer diameter (D3) of the output pulley 32 is formed larger than the inner width W2 of the outer tube insertion portion 34, and the inner diameter D4 of the output pulley accommodating portion 30 of the output housing 31 is larger than the outer diameter (D3) of the output pulley 32. Is also formed in a large diameter.

  The output pulley accommodating portion 30 is a third curved portion 36 having a radius R3 as a third pedestal that forms a sliding counterpart of the first wire rope 15 formed inwardly from one open end 30a on the inner periphery of the inner diameter D4. Is continuously provided to one inner end 34 a of the outer tube insertion portion 34. The 1st wire rope 15 contacts the 3rd bending part 36 which is a 3rd base, and is bent. In addition, the fourth bending portion having a radius R4 as a fourth pedestal that forms a sliding counterpart of the second wire rope 16 that protrudes inwardly from the other open end 30b of the inner periphery of the inner diameter D4 of the output pulley accommodating portion 30. 37 is continuously provided to the other inner end 34 b of the outer tube insertion portion 34. The third bending portion 36 and the fourth bending portion 37 face each other. The 2nd wire rope 16 contacts the 4th bending part 37 which is a 4th base, and is bent.

  The output pulley 32 is provided with a second engaging portion 38 with which the second fixing tool 18 of the wire rope unit 14 is engaged. The second fixing member 18 is engaged with the second engaging portion 38 and the first wire rope 15 and the second wire rope 16 are passed over the output pulley 32. In the present embodiment, the first wire rope 15 is disposed on the side that is pulled when the output pulley 32 is rotated in the clockwise direction, and the second wire rope 16 is disposed on the side that is pulled when the output pulley 32 is rotated in the counterclockwise direction. doing. In a state where the wire rope unit 14 is in tension, the first wire rope 15 contacts the third bending portion 36, the second wire rope 16 contacts the fourth bending portion 37, and is bent and directed toward the output pulley 32. And spread outward.

  In the outer tube 13, for example, a first wire rope 15 of a wire rope unit 14 is slidably inserted into a first tube portion 13b formed in a resin main body 13a into which a steel wire is inserted, and a second tube portion. The second wire rope 16 is slidably inserted into 13c. The outer tube 13 stretches between the input housing 11 and the output housing 12 in a flexible manner, and maintains the tension of the first wire rope 15 and the second wire rope 16.

  In this embodiment, the outer tube 13 has a configuration in which the first tube portion 13b and the second tube portion 13c through which the first wire rope 15 and the second wire rope 16 are inserted are provided in the main body 13a. The first outer tube through which the wire rope 15 is inserted and the second outer tube through which the second wire rope 16 is inserted may be provided separately. In this case, the first outer tube and the second outer tube are attached so as to stretch between the input housing 20 and the output housing 31. The first outer tube and the second outer tube are spirally filled with metal members.

  When the air volume adjustment operation dial 24 is rotated in the clockwise direction indicated by the arrow “strong”, the first wire rope 15 is pulled by the clockwise rotation of the input pulley 21 and the output pulley 32 is rotated in the clockwise direction. As the output pulley 32 rotates in the clockwise direction, the open / close door 4 rotates while falling in the clockwise direction. On the other hand, when the operation dial 24 is rotated in the counterclockwise direction indicated by the arrow “weak”, the second wire rope 16 is pulled, and the output pulley 32 is rotated in the counterclockwise direction. As the output pulley 32 rotates counterclockwise, the open / close door 4 rotates while being raised counterclockwise.

  Therefore, the tensile stress applied to the second wire rope 16 is larger than the tensile stress applied to the first wire rope 15.

  That is, it is not necessary to use a wire rope having the same breaking strength (tensile strength) between the first wire rope 15 and the second wire rope 16, and the tensile strength of the first wire rope 15 is higher than the tensile strength of the second wire rope 16. It will be small. For this reason, the selection of the first wire rope 15 only needs to satisfy the necessary minimum tensile strength.

  As for the tensile strength of the wire rope, for example, when the wire material is the same, the diameter (d1) of the first wire rope 15 is smaller than the diameter (d2) of the second wire rope 16 (d1 <d2). . In other words, the diameter (d2) of the second wire rope 16 is larger than the diameter (d1) of the first wire rope 15.

  The first sliding resistance when the first wire rope 15 is pulled is R1, and the second sliding resistance when the second wire rope 16 is pulled is R2. When the first wire rope 15 and the second wire rope 16 are assumed to be wire ropes having the same structure, the second sliding resistance R2 of the second wire rope 16 having a large diameter is the first of the first wire rope 15 having a small diameter. It is smaller than the sliding resistance R2.

  That is, in the pulling operation of the first wire rope 15, the first wire rope 15 contacts and slides on the surfaces of the first bending portion 27 that is the first pedestal and the third bending portion 36 that is the third pedestal. In the pulling operation of the second wire rope 16, the second wire rope 16 comes into contact with and slides on the surfaces of the second bending portion 28 that is the second pedestal and the fourth bending portion 37 that is the fourth pedestal. If the diameter of the wire rope is large, the contact area with the pedestal also increases and the surface pressure decreases. Therefore, the second sliding resistance R2 when pulling the second wire rope 16 is smaller than the first sliding resistance R1 when pulling the first wire rope 15. In other words, the first sliding resistance R1 of the first wire rope 15 increases as the diameter decreases.

  In the closing operation of pulling the second wire rope 16, the open / close door 4 is subjected to its own weight, so that the driving torque for rotating the driving shaft 5 counterclockwise (referred to as second shaft driving torque A <b> 2) is the first wire. It is larger than the drive torque (referred to as the first shaft drive torque A1) for pulling the rope 15 to drive the drive shaft 5 in the clockwise direction.

  The driving torque for rotating the operation dial 24 in the clockwise direction (referred to as a first operation driving torque T1) is the first sliding torque S1 corresponding to the first sliding resistance R1 in addition to the first shaft driving torque A1. Is added (T1 = A1 + S1). Similarly, as a driving torque for rotating the operation dial 24 in the counterclockwise direction (referred to as a second operation driving torque T2), a second sliding corresponding to the second sliding resistance R2 is added to the second shaft driving torque A2. Torque S2 is applied (T2 = A2 + S2).

  In the present embodiment, A1 (first shaft driving torque) <A2 (second shaft driving torque), but since S1 (first sliding torque)> S2 (second sliding torque), the first wire By appropriately setting the diameter d1 of the rope 15 and the diameter d2 of the second wire rope 16, the first operation driving torque T1 and the second operation driving torque T2 can be made as equal as possible.

  For this reason, when the operation dial 24 is rotated in the clockwise direction to rotate the door 4 in the opening direction, and conversely, the operation dial 24 is rotated in the counterclockwise direction to rotate the door 4 in the closing direction. It became possible to eliminate the difference in the feeling of operation.

  In order to provide a difference between the first sliding torque S1 and the second sliding torque S2, not only the diameter of the wire rope but also the difference in the twist structure of the wire rope can be set. Furthermore, it can be set according to the radius of the base of the input / output housing on which the wire rope slides.

  In this embodiment, the 1st wire rope 15 uses the wire rope (TB-54: made by Toyoflex Co., Ltd.) of the twist structure shown to Fig.3 (a), and the 2nd wire rope 16 is shown in FIG.3 (b). The wire rope (TG-60: made by Toyoflex Co., Ltd.) of the twist structure shown is used. The wire rope (TB-54) used for the first wire rope 15 has a wire rope diameter (d1) of 0.54 mm, a wire diameter of 0.06 mm, a breaking load of 245.3 N, and a wire rod material of SUS304. It is. The wire rope (TG-60) used for the second wire rope 16 has a wire rope diameter (d2) of 0.60 mm, a wire diameter of 0.12 mm, a breaking load of 419.9 N, and a wire rod material of SUS304. It is.

  The first wire rope 15 has a configuration (7 × 7) in which seven bundles of wire ropes 42 in which seven wires 41 are twisted are twisted. The second wire rope 16 has a simple configuration (1 × 19) in which 19 wires 43 are twisted.

  When the first wire rope 15 and the second wire rope 16 have the same outer diameter, the rope having a simple twist structure has a small number of wires, and the cross-sectional diameter (radius) of one wire is large. Features low resistance (high slidability). Compared with the first wire rope 15, the second wire rope 16 has a larger wire rope diameter, a larger diameter of one wire, and a simpler twist structure. Therefore, the difference between the first sliding torque S1 of the first wire rope 15 and the second sliding torque S2 of the second wire rope 16 can be increased and set with high accuracy.

  Since the outer diameter (D1) of the input pulley 21 is larger than the inner width W1 of the outer tube insertion portion 25, the first bending portion 27 that forms the pedestal by the clockwise and counterclockwise rotation of the input pulley 21 The 1 wire rope 15 is in sliding contact in a bent state. Similarly, the 2nd wire rope 16 is slidably contacted in the bending state by the 2nd bending part 28 which makes a base.

  Similarly, since the outer diameter (D3) of the output pulley 32 is larger than the inner width W2 of the outer tube insertion portion 34, the third bending portion that forms a pedestal by the clockwise and counterclockwise rotations of the output pulley 32. At 36, the first wire rope 15 is in sliding contact with the bent state. Similarly, the 2nd wire rope 16 is slidably contacted in the bending state by the 4th curved part 37 which makes a base.

  In the present embodiment, the radius R1 of the first bending portion 27 forming the pedestal and the radius R3 of the third bending portion 36 are the same, and the radius R2 of the second bending portion 28 forming the pedestal and the radius R4 of the fourth bending portion 37 are set. Are the same diameter, and the radius R2 (R4) is larger than the radius R1 (R3) (R2 (R4)> R1 (R3)).

  The wire rope that is in sliding contact with the surfaces of the first bending portion 27, the second bending portion 28, the third bending portion 36, and the fourth bending portion 37 forming each pedestal is a pedestal having a larger radius than a pedestal having a small radius. Gently slides against. Therefore, the difference between the first sliding torque S1 of the first wire rope 15 and the second sliding torque S2 of the second wire rope 16 can be increased and set with high accuracy.

  In the input housing 20, the radius R <b> 1 of the first bending portion 27 where the first wire rope 15 bends is the minimum radius that can maintain durability with respect to the first wire rope 15. Further, if the radius R2 of the second bending portion 28 where the second wire rope 16 bends is the minimum radius that can maintain durability with respect to the second wire rope 16, the radius R2 is larger than the radius R1. That is, when the radius R2 of the second bending portion 28 is the same as the radius R1 of the first bending portion 27, the diameter (d2) of the second wire rope 16 is larger than the diameter (d1) of the first wire rope. Since the radius at the time of bending is small, a large stress is applied to the bending portion, and durability is lowered when sliding contact in the bending state is repeated. However, since the radius R2 of the second bending portion 28 is set to be larger than the radius R1 of the first bending portion 27, the radius when the second wire rope 16 bends becomes large, and the input portion 11 has a second radius. The durability of the wire rope 16 is maintained.

  In the output housing 31, like the input housing 20, the radius R3 of the third curved portion 36 is the minimum radius that can maintain durability with respect to the first wire rope 15, and the radius R4 of the fourth curved portion 37 is the second wire. The minimum radius that can maintain durability with respect to the rope 16 is set. Therefore, the radius R4 of the fourth bending portion 37 where the second wire rope 16 bends is set larger than the radius R3 of the third bending portion 36 where the first wire rope 15 bends. Therefore, the durability of the second wire rope 16 is maintained in the output unit 12.

  In addition, since the second wire rope 16 has a simple twisted configuration, durability by bending at the second bending portion 28 and the fourth bending portion 37 is good.

  In the present embodiment, the outer diameter (D1) of the input pulley 21 and the outer diameter (D3) of the output pulley 32 are the same diameter, the width (W1) of the outer tube insertion portion 25 and the width of the outer tube insertion portion 34. Although (W2) has the same width, it is not limited to this. Further, the radius (R1) of the first bending portion 27 and the radius (R3) of the third bending portion 36 are the same, and the radius (R2) of the second bending portion 28 and the radius (R4) of the fourth bending portion 37 are set. Although it is set as the same diameter, it is not limited to this.

Since the breaking load is different between the first wire rope 15 and the second wire rope 16 of the wire rope unit 14, the elongation amount of the first wire rope 15 is larger than the elongation amount of the second wire rope 16. For this reason, the length of the 1st wire rope 15 is made shorter than the length of the 2nd wire rope 16, and each both ends are fixed by the 1st fixing tool 17 and the 2nd fixing tool 18. FIG.

  Accordingly, the first fixing tool 17 of the wire rope unit 14 is engaged and fixed to the first fixing tool 29 of the input pulley 21, and the second fixing tool 18 is engaged with the second fixing tool 38 of the output pulley 32. When the first wire rope 15 and the second wire rope 16 are hung on the input pulley 21 and the output pulley 32, the tension of the first wire rope 15 and the second wire rope 16 becomes equal. For this reason, the operation dial 24 is rotated in the clockwise direction to rotate the door 4 in the opening direction, and the operation dial 24 is rotated in the counterclockwise direction to rotate the door 4 in the closing direction. The feeling can be made even.

Second Embodiment FIG. 4 shows a second embodiment of the present invention.

  FIG. 4A shows a schematic top view for controlling the air conditioner of the automobile using the second embodiment of the rope drive device according to the present invention, and FIG. 4B shows a CC arrow view of FIG. In FIG. 4, the same members as those in FIG.

  In the above-described first embodiment, when the opening / closing door 4 provided on the drive shaft 5 arranged in the horizontal direction of the air conditioner 1 is used as a driven body and the rope driving device 10 performs the opening / closing operation, the second wire rope 16 is pulled. When the first shaft drive torque A1 for driving the drive shaft 5 to rotate in the counterclockwise direction is different from the second shaft drive torque A2 for pulling the first wire rope 15 to drive the drive shaft 5 to rotate in the counterclockwise direction. As an example. Then, by providing a difference between the first sliding torque S1 and the second sliding torque S2, the first operation driving torque T1 for rotating the operation dial 24 in the clockwise direction and the operation dial 24 in the counterclockwise direction are provided. A difference from the second operation drive torque T2 that is rotated is prevented from occurring.

  In the second embodiment, when the first shaft drive torque T1 and the second shaft drive torque T2 are equal, a difference is provided between the first operation drive torque T1 and the second operation drive torque T2.

  The air conditioner 1 shown in FIG. 4 is configured by rotating the air conditioner 1 shown in FIG. 1 by 90 degrees around the X axis, and has the same configuration as the air conditioner 1 shown in FIG. The drive shaft 5 extends along the Z-axis direction that is the vertical direction. The open / close door 4 is driven in the opening direction by the clockwise rotation of the drive shaft 5, and is driven in the closing direction by the counterclockwise rotation of the drive shaft 5. Unlike the first embodiment, the first shaft driving torque A1 that rotationally drives the drive shaft 5 in the clockwise direction and the second shaft driving torque A2 that rotates in the counterclockwise direction are influenced by the weight of the opening / closing door 4. Are equal, (A1 = A2).

  The rope drive device 10 of this embodiment uses the rope drive device 10 shown in FIGS. Therefore, since the first sliding resistance R1 of the first wire rope 15 is larger than the second sliding resistance R2 of the second wire rope 16 (R1> R2), the first sliding when pulling the first wire rope 15 is performed. The torque S1 is larger than the second sliding torque S2 when pulling the second wire rope 16 (S1> S2).

  Therefore, the first operation driving torque T1 (T1 = S1 + A1) when the operation dial 24 is rotated clockwise to rotationally drive the opening / closing door 4 is rotated by turning the operation dial 24 counterclockwise. It is larger than the second operation driving torque T2 (T2 = S2 + A2) when the door 4 is rotationally driven in the closing direction.

  In the present embodiment, the first operation drive torque T1 when the operation dial 24 is rotated in the clockwise direction is artificially increased to the second operation drive torque T2 when the operation dial 24 is rotated in the counterclockwise direction. Since it is heavy when the operation dial 24 is rotated in the direction of increasing the air volume, it is possible for the operator to sensuously recognize that the operation dial 24 is being rotated in the direction of increasing the air volume. On the contrary, since it is light when the operation dial 24 is rotated counterclockwise, it is possible to make the operator sensibly recognize that the operation dial 24 is rotated in the direction of decreasing the air volume.

  In each of the embodiments described above, the air volume of the air conditioner 1 is adjusted by the operation dial 24. However, when adjusting the temperature, for example, the temperature adjustment direction is sensuous by making the temperature rising side heavy and the temperature decreasing side light. You may make it recognizable.

  Further, by remotely operating the gas fire adjustment knob with the rope drive device 10, a heavy operational feeling can be obtained in a high fire direction with a high degree of caution, and a light operational feeling can be obtained in a low fire direction with a low degree of caution. It is possible to call attention at the time of operation.

  In each of the above-described embodiments, the difference between the first sliding resistance R1 of the first wire rope 15 and the second sliding resistance R2 of the second wire rope 16 is the difference between the elements of the wire rope diameter and the wire rope. It is set based on all the elements of the difference in the twisted structure and the elements of the radius of the pedestal that the wire rope contacts, but it may be set with only one element, either two You may make it set based on an element. Furthermore, it is not limited to these three elements, and other elements that affect the sliding resistance can be used alone or in combination.

  The rope driving device according to the present invention includes a window opening and closing device, a manipulator, a sliding door driving device, a gas, in addition to a device for remotely opening and closing the opening and closing door of the air conditioner for an automobile shown in the embodiment, and a temperature control device. It can be used to drive a fire adjustment control knob.

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Ventilation duct 3 Opening part 4 Opening / closing door 5 Drive shaft 10 Rope drive device 11 Input part 12 Output part 13 Outer tube 13a Main body 13b First tube part 13c Second tube part 14 Wire rope unit 15 First wire rope 16 2nd wire rope 17 1st fixing tool 18 2nd fixing tool 19 Input pulley accommodating part 19a One open end 19b The other open end 20 Input housing 21 Input pulley 22 Input shaft 23 Back wall part 24 Operation dial 25 Outer tube insertion Part 25a One inner end 25b The other inner end 26 Step part 27 First curved part 28 Second curved part 29 First engaging part 30 Output pulley accommodating part 30a One open end 30b The other open end 31 Output housing 32 Output Pulley 33a Front wall 33b Back wall 34 Outer tube insertion 34a one of the inner end 34b other inner end 35 step portion 36 the third bending portion 37 fourth bending portion 38 the second engaging portion 41, 43 wire 42 a bundle of wire rope

Claims (8)

An input portion that rotatably accommodates an input pulley in an input housing, an output portion that rotatably accommodates an output pulley in an output housing, and a wire rope unit that is spanned between the input pulley and the output pulley An outer tube that is disposed between the input housing and the output housing and holds the wire rope of the wire rope unit inserted therethrough in tension.
The wire rope unit rotates the output pulley in the first rotation direction while being pulled against the first sliding resistance when the input pulley is rotated in the first rotation direction, and the input A second wire rope that rotates the output pulley in the second rotation direction while being pulled against a second sliding resistance when the pulley is rotated in a second rotation direction opposite to the first rotation direction; And
The rope driving device characterized in that the first sliding resistance is different from the second sliding resistance.   2. The rope driving device according to claim 1, wherein the difference between the first sliding resistance and the second sliding resistance is created based on a diameter of the first wire rope and the second wire rope. .   The difference between the first sliding resistance and the second sliding resistance is created by a difference in twist structure between the first wire rope and the second wire rope. Rope drive.   The difference between the first sliding resistance and the second sliding resistance is created by a difference in a bending radius of a sliding mating part on which the first wire rope and the second wire rope slide. The rope drive device according to any one of claims 1 to 3.   The first wire rope and the second wire rope are shorter in length than the wire rope having a smaller diameter than the wire rope having a larger diameter, and both ends of the first wire rope and the second wire rope are respectively connected to each other. The rope drive device according to any one of claims 2 to 4, wherein the rope drive device is fixed by a fixture, and each fixture is fixed to the input pulley and the output pulley.   The second driving torque when driven in the second rotation direction is greater than the first driving torque when the driven body rotated by the output pulley is driven in the first rotation direction; The rope driving device according to any one of claims 1 to 5, wherein 2 sliding resistance is smaller than said 1st sliding resistance.   When the first driving torque when the driven body rotated by the output pulley is driven in the first rotation direction is equal to the second driving torque when driven in the second rotation direction, the second The rope driving device according to any one of claims 1 to 5, wherein sliding resistance is smaller than said first sliding resistance.   When the driven body that is rotationally driven by the output pulley has a higher degree of caution in driving in the first rotational direction than in driving in the second rotational direction, the second sliding resistance is the first sliding resistance. The rope drive device according to any one of claims 1 to 5, wherein the rope drive device is smaller.

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