JP6642175B2 - Damper system - Google Patents

Description

  The present invention relates to a damper system.

  Conventionally, as shown in FIG. 13, a flywheel damper is designed to reduce torque vibration by expanding and contracting a coil spring 103 disposed between a member 101 for inputting torque and a member 102 for outputting torque. . Grease is sealed to smoothly slide with the peripheral members when the coil spring expands and contracts. Since the performance of grease is reduced when it contains water, a mechanism for preventing this is required. As shown in FIG. 13, water flows in from the intrusion route A4 and the intrusion route A5. Conventionally, in order to prevent the coil spring 103 from getting wet, as shown in FIG. 13, the sealing members 104 and 105 made of an elastic body are pressed against the rotating body 106 to seal water, thereby preventing water from entering the housing chamber R1. Had been prevented.

DE 102 08 23 361 A1

  However, since the seal portions 104 and 105 and the contact surfaces thereof are required to have high shape accuracy in order to ensure the close contact between the seal portions 104 and 105, there is a problem of a high cost. Further, a swinging motion in the rotation direction acts on the seal portions 104 and 105, and in these portions, when the rotation direction is reversed, the adhesion (also referred to as sealability) of the seal portions 104 and 105 is reduced, and a gap is easily generated. There is a structural problem. Further, when the seal portions 104 and 105 are worn or deformed with time, there is a problem of durability in that the sealability is reduced. Further, there is a case where a foreign matter is caught between the seal portions 104 and 105, and when the foreign matter is caught between the seal portions 104 and 105, there is a problem of the foreign matter that the sealing property is deteriorated.

  The present invention has been made in view of the above problems, and reduces the cost of a seal portion for preventing inflow of water into a storage chamber, improves structural problems, improves durability problems, and reduces foreign matter problems. An object of the present invention is to provide a damper device that can be improved.

  A damper system according to a first aspect of the present invention includes an elastic portion disposed in a circumferential direction of a rotation shaft, a first rotating body having a housing chamber for housing the elastic portion, A second rotating body connected to the rotating body via the elastic portion; a third rotating body connected to the second rotating body; the first rotating body and the third rotating body; A sealing unit for sealing a gap provided between the body and the body; and a gas supply unit for supplying gas into the storage chamber.

  According to this configuration, by supplying gas into the storage chamber, the pressure in the storage chamber can be made positive. For this reason, it is possible to prevent water from flowing into the storage chamber by shielding the intrusion of water by the flow of gas from the inside of the storage chamber to the outside, or by increasing the adhesion of the seal portion by positive pressure. . This eliminates the need for a high precision in the shape of the seal portion and the contact surface thereof, so that the cost can be reduced.

  In the case where the inflow of water is blocked by the flow of gas from the inside of the storage chamber to the outside, even if the sealing performance of the seal portion is deteriorated during the rotation swing, the exhaust gas blocks the water and prevents the intrusion of water. be able to. In addition, even when the seal portion is worn or deformed with time and the sealing property is deteriorated, the exhaust gas can block water and prevent water from entering. In addition, the exhaust gas can prevent foreign matter from staying in the vicinity of the seal portion, and reduce the risk of foreign matter being pinched.

  On the other hand, when the adhesiveness of the seal portion is improved by the positive pressure, the decrease in the sealability can be compensated for by the pressure of the gas even if the sealability of the seal portion decreases during the rotation swing. Further, even when the seal portion is worn or deformed with time and the seal property is reduced, the seal property can be compensated for by the gas pressure. Further, even when foreign matter is caught in the seal portion and the sealing property is deteriorated, the foreign matter can be removed by the pressure of the gas to compensate for the reduced sealing property. As described above, it is possible to reduce the cost of the seal portion for preventing water from flowing into the storage chamber, improve the structural problem, improve the durability problem, and improve the foreign matter problem.

  A damper system according to a second aspect of the present invention is the damper system according to the first aspect, wherein the seal portion is configured to be able to discharge gas in the storage chamber to the outside.

  According to this configuration, the water is shielded by the flow of the air discharged to the outside, and the intrusion of the water into the storage chamber can be prevented.

  The damper system according to a third aspect of the present invention is the damper system according to the first aspect, wherein the seal unit is configured to control the first rotating body or the first rotating body by a pressure of a gas supplied to the storage chamber. It is configured to be pressed against the third rotating body.

  According to this configuration, since the adhesion between the seal portion and the wall of the rotating body or the third rotating body is improved, it is possible to prevent water from flowing into the storage chamber.

  A damper system according to a fourth aspect of the present invention is the damper system according to any one of the first to third aspects, wherein the damper system communicates with the gas supply unit and passes the gas supplied by the gas supply unit. A pipe, and a fixing member having a first flow path communicating with the pipe provided therein and being fixed to the rotation axis so as not to rotate, and having a ring shape about the rotation axis. A second flow path through which gas passes and communicates with the storage chamber is formed in the first rotating body, and the gas supplied from the gas supply unit is provided in the first flow path. And a sealing member for sealing so that gas is not discharged from the outlet of the first flow path to the outside when the gas is sent from the first flow path to the second flow path.

  According to this configuration, it is possible to prevent air from leaking to the outside between the gas supply unit and the storage chamber, and to efficiently supply the gas to the storage chamber.

  A damper system according to a fifth aspect of the present invention is the damper system according to any one of the first to third aspects, wherein the damper system communicates with the gas supply unit and passes gas supplied by the gas supply unit. A pipe, a first flow passage communicating with the pipe are provided inside, and a fixed member that is fixed so as not to rotate with respect to the rotation shaft is formed therein, and a second flow path through which gas passes is formed. When the gas is sent from the first flow path to the second flow path, the gas flows to the outside from the outlet of the first flow path when the second flow path communicates with the storage chamber. A sealing member for sealing so as not to be discharged.

  According to this configuration, it is possible to prevent air from leaking to the outside between the gas supply unit and the storage chamber, and to efficiently supply the gas to the storage chamber.

  A damper system according to a sixth aspect of the present invention is the damper system according to any one of the first to fifth aspects, wherein a detection unit that detects a depth of the inundation, and a detection unit that detects the depth of the inundation. A control unit that controls the gas supply unit accordingly.

  According to this configuration, when the water is deepened, the gas can be supplied from the gas supply unit to the storage chamber, so that the storage chamber becomes a positive pressure and the intrusion of water into the storage chamber can be prevented.

  The damper system according to a seventh aspect of the present invention is the damper system according to any one of the first to fifth aspects, wherein the detection unit detects a temperature and the gas supply is performed in accordance with the detected temperature. A control unit that controls the unit.

  According to this configuration, when the temperature rises, the gas can be supplied from the gas supply unit to the storage chamber, so that a rise in the temperature of the storage chamber can be suppressed.

  The damper system according to an eighth aspect of the present invention is the damper system according to any one of the first to fifth aspects, further comprising: an operation unit configured to receive an operation of an instruction to switch to a rough road mode; And a control unit for controlling the gas supply unit in response to the switching instruction.

  According to this configuration, even when water or sand flows into the damper system when the vehicle travels on a river, a desert, or the like, the gas is supplied from the gas supply unit when the switching to the rough road mode is instructed. Since the pressure can be supplied to the storage chamber, the pressure in the storage chamber becomes positive, and the inflow of water or sand into the storage chamber can be prevented.

  ADVANTAGE OF THE INVENTION According to this invention, a positive pressure can be set in a storage chamber by supplying gas to a storage chamber. For this reason, it is possible to prevent water from flowing into the storage chamber by shielding the intrusion of water by the flow of gas from the inside of the storage chamber to the outside, or by increasing the adhesion of the seal portion by positive pressure. . This eliminates the need for a high precision in the shape of the seal portion and the contact surface thereof, so that the cost can be reduced.

  In the case where the inflow of water is blocked by the flow of gas from the inside of the storage chamber to the outside, even if the sealing performance of the seal portion is deteriorated during the rotation swing, the exhaust gas blocks the water and prevents the intrusion of water. be able to. In addition, even when the seal portion is worn or deformed with time and the sealing property is deteriorated, the exhaust gas can block water and prevent water from entering. In addition, the exhaust gas can prevent foreign matter from staying in the vicinity of the seal portion, and reduce the risk of foreign matter being pinched.

  On the other hand, when the adhesiveness of the seal portion is improved by the positive pressure, the decrease in the sealability can be compensated for by the pressure of the gas even if the sealability of the seal portion decreases during the rotation swing. Further, even when the seal portion is worn or deformed with time and the seal property is reduced, the seal property can be compensated for by the gas pressure. Further, even when foreign matter is caught in the seal portion and the sealing property is deteriorated, the foreign matter can be removed by the pressure of the gas to compensate for the reduced sealing property. As described above, it is possible to reduce the cost of the seal portion for preventing water from flowing into the storage chamber, improve the structural problem, improve the durability problem, and improve the foreign matter problem.

FIG. 2 is a partial cross-sectional view of the damper system 1 according to the first embodiment. It is AA 'cross section of FIG. It is a partial sectional view of damper system 1b concerning a 2nd embodiment. It is BB 'cross section of FIG. It is a partial sectional view of damper system 1c concerning a 3rd embodiment. It is CC 'cross section of FIG. It is a partial sectional view of damper system 1d concerning a 4th embodiment. It is DD 'cross section of FIG. It is the 1st example of the structure of a seal part. It is a 2nd example of the structure of a seal | sticker part. It is the 3rd example of the structure of a seal | sticker part. It is the 4th example of the structure of a seal part. It is a partial sectional view of the conventional flywheel damper.

Hereinafter, each embodiment will be described with reference to the drawings. The damper device according to each embodiment is provided, for example, between a power source and a passive unit in a drive system of a vehicle.
<First embodiment>
FIG. 1 is a partial cross-sectional view of a damper system 1 according to the first embodiment. As shown in FIG. 1, the damper system 1 is provided between an output shaft 2 of a power source and an input shaft of a passive unit via a clutch disc (not shown), and is provided between the output shaft 2 and the input shaft. Absorbs torque fluctuations and torsional vibrations caused by torsion. The damper system 1 forms a power transmission path together with the output shaft 2 and the input shaft. The power source is, for example, an engine or a motor, and the passive unit is, for example, a transmission or a transaxle. The power source may be a hybrid type having both an engine and a motor. Hereinafter, in each embodiment, as an example, a description will be given below assuming that the power source is an engine, the output shaft 2 is an engine crankshaft, and the passive unit is a transmission.

  The rotation axis Ax of the damper system 1 is a rotation axis of a rotating object (the rotators 4 to 6, the elastic portion 7, and the like) included in the damper system 1. The rotation axis Ax substantially coincides with the rotation axes of the output shaft 2 and the input shaft. In the following description, unless otherwise specified, the axial direction indicates the axial direction of the rotation axis Ax, the radial direction indicates the radial direction of the rotation axis Ax, and the circumferential direction indicates the circumferential direction of the rotation axis Ax.

  The damper system 1 includes, for example, three rotating bodies 4 to 6. The rotating bodies 4 to 6 are connected in series in a power transmission path. The rotating bodies 4 to 6 are plates that can rotate around the rotation axis Ax. Hereinafter, the rotating bodies 4 to 6 will be described as plates 4 to 6. The plate 4 is connected to the output shaft 2 and can rotate integrally with the output shaft 2. The plate 6 is connected to an input shaft via a clutch disc (not shown), and is rotatable integrally with the input shaft. The plate 5 is provided between the plate 4 and the plate 6, is connected to the plate 4 via the elastic portion 7, and is connected to the plate 6 by the bolt B3. In this embodiment, the plate 4 is also called a first rotating body, the plate 5 is also called a second rotating body, and the plate 6 is also called a third rotating body.

  Further, the damper system 1 includes an elastic portion 7. The elastic part 7 is interposed between the plate 4 and the plate 5. The elastic part 7 is elastically deformed by the relative rotation between the plate 4 and the plate 5. The elastic portion 7 absorbs a torque fluctuation between the plate 4 and the plate 5 by elastic deformation.

  The plate 4 has a pair of walls 4a, 4b arranged at intervals in the axial direction, and a cylindrical portion 4c provided between the walls 4a and 4b. The walls 4a and 4b are formed in a ring shape around the rotation axis Ax, and extend in the radial direction. The wall 4b is arranged on the transmission side in the axial direction of the wall 4a. The wall 4b covers the outer periphery of the wall 4a. The cylindrical portion 4c is provided over an outer edge portion (radially outer end portion) of the wall portion 4a and an outer edge portion of the wall portion 4b, and is formed annularly around the rotation axis Ax. In the present embodiment, the wall 4a and the plate 23 are connected to the output shaft 2 by bolts B1, and the plate 4 rotates integrally with the output shaft 2.

The plate 4 has an accommodation room 4d (space) surrounded by walls 4a and 4b and a cylindrical portion 4c. The elastic portion 7 and an elastic portion (not shown) arranged in the circumferential direction are accommodated in the accommodation room 4d. That is, the plate 4 accommodates the elastic portion 7.
The plate 4 is provided with a gear 25. The gear 25 is connected to the cylindrical portion 4c by, for example, welding. The gear 25 is connected to a starter for the engine.
Further, the damper system 1 includes a transmission housing TH that accommodates the plates 4 to 6, the elastic portion 7, and the like.

  Further, the damper system 1 includes a blower pump P as an example of a gas supply unit. The gas supply unit supplies gas into the storage chamber 4d and circulates the gas in the storage chamber 4d. In the present embodiment, air is used as an example of gas, and the blower pump P blows air into the plate 4 to circulate the air in the storage chamber 4d. Hereinafter, it is assumed that the blower pump P sends out air as an example of gas.

Further, the damper system 1 includes a pipe PP that is in communication with the blower pump P and that allows the air blown by the blower pump P to pass therethrough.
Further, the damper system 1 has a fixing member FP having a first flow passage communicating with the pipe PP, which is fixed to the rotation axis Ax so as not to rotate, and has a ring shape about the rotation axis Ax. Is provided. The pipe PP and the fixing member FP are connected via a joint JT.

In the present embodiment, the rotating member RP is connected to the wall portion 4a, and the rotating member RP of the plate 4 communicates with the housing chamber 4d through a hole provided in the wall portion 4a to allow the air to pass therethrough. The channel AP2 is formed.
Further, the damper system 1 includes a bearing SB fixed to the fixing member FP and sliding with the rotating member RP. Thereby, the rotation member RP rotates inside the fixed member FP.

  Further, the damper system 1 prevents the air supplied from the blower pump P from being discharged to the outside from the outlet of the first channel AP1 when the second channel AP2 is sent from the first channel AP1. And sealing members S1 and S2 for sealing. In the present embodiment, the outlet of the pipe PP and the inlet of the second flow path of the rotating member RP of the plate 4 face each other with a space. Then, ring-shaped seal members S1 and S2 provided before and after in the direction of the rotation axis Ax with respect to the second flow path AP2 formed in the rotation member RP and provided around the rotation axis Ax are provided in the rotation member RP. Have been. Thereby, when the second flow path AP2 is sent from the first flow path AP1, sealing can be performed so that air is not discharged to the outside from the outlet of the first flow path AP1. Note that the seal members S1 and S2 may be provided on the fixing member FP.

Further, the damper system 1 includes a dynamic vibration absorber (not shown). The dynamic vibration absorber (not shown) is connected to the plate 5 and suppresses torsional vibration generated between the plate 4 and the plate 6.
Further, the damper system 1 includes a seal part MS. The seal portion MS seals a gap provided between the wall portion 4b of the plate (first rotator) 4 and the plate (third rotator) 6. The seal portion MS is provided in order to prevent water flowing through the water intrusion path WP from entering the accommodation room 4d. The seal portion MS according to the present embodiment is, for example, a mechanical seal. As shown in FIGS. 9 to 12, the shape of the mechanical seal can be selected from lip type, plate type, ring type and the like.

Further, the damper system 1 includes a detection unit SU that detects a physical quantity and an operation unit OU that receives an operation by a driver of the automobile.
Further, the damper system 1 includes a control unit CON connected to the detection unit SU via the detection signal line, connected to the operation unit OU via the operation signal line, and connected to the blower pump P via the control signal line. Prepare.

  In the present embodiment, as an example, the detection unit SU detects the depth of inundation. In the present embodiment, as an example, the control unit CON controls the blower pump P according to the detected depth of inundation. Accordingly, when the water is deepened, the air can be supplied from the blower pump P to the accommodation room 4d, so that the accommodation room 4d has a positive pressure and the water can be prevented from entering the accommodation room 4d.

  Specifically, for example, the control unit CON controls the blower pump P so as to send out air from the blower pump P when the detected depth of inundation becomes higher than a predetermined threshold water level. Thus, even when water flows into the damper system 1, by sending air from the blower pump P, the accommodation chamber 4d becomes a positive pressure, so that water can be prevented from entering the accommodation chamber 4d. .

  The operation unit OU is capable of accepting an operation of an instruction to switch to the rough road mode. The control unit CON controls the blower pump P in response to an instruction to switch to the rough road mode. Specifically, for example, when there is an instruction to switch to the rough road mode, the control unit CON controls the blower pump P so that air is sent from the blower pump P. With this, even when water or sand flows into the damper system 1 when the vehicle travels on a river, a desert, or the like, the air is supplied from the blower pump P to the accommodation room when the switch to the rough road mode is instructed. Since it can be supplied to the storage chamber 4d, the pressure of the storage chamber 4d becomes positive and the inflow of water or sand into the storage chamber 4d can be prevented.

  FIG. 2 is an AA ′ section of FIG. As shown in FIG. 2, the air flow path SP of the pipe PP communicates with a first flow path AP1 provided inside the fixing member FP. When the air supplied from the pipe PP is discharged from the outlet of the first flow path AP1, the air is discharged to a space provided between the fixing member FP and the rotating member RP, and the air is supplied to the fixed member FP and the rotating member RP. The air in the space provided between them is pushed out to the second flow path AP2 provided inside the rotating member RP. Then, the air that has flowed into the second flow path AP2 flows from the position OP in the direction of the rotation axis Ax (the depth direction on the paper surface of FIG. 2). Thereby, air is supplied to the accommodation room 4d.

As described above, the damper system 1 according to the first embodiment includes the elastic portion 7 arranged in the circumferential direction of the rotation axis Ax, the plate 4 in which the accommodation room 4d for accommodating the elastic portion 7 is formed, And a blower pump P for supplying gas into the inside.
According to this configuration, by supplying the gas in the storage chamber 4d, the pressure in the storage chamber 4d can be made positive. For this reason, the entry of water is shielded by the flow of gas (for example, air) from the inside to the outside of the storage chamber 4d, or the adhesion of the seal portion MS is improved by positive pressure, so that the entry path WP of water is reduced. It is possible to prevent the water that has flowed through and from flowing into the accommodation room 4d. This eliminates the need for high shape accuracy for the seal portion MS and the contact surface thereof, so that the cost can be reduced.

  In the case where the inflow of water is blocked by the flow of gas (for example, air) from the inside to the outside of the storage chamber 4d, the discharged gas blocks water even if the sealing property of the seal portion MS is reduced during the rotation swing. Water can be prevented. Further, even when the seal portion MS is worn or deformed with time and the sealing property is deteriorated, the exhaust gas can block water and prevent water from entering. In addition, the exhaust gas can prevent foreign matter from staying in the vicinity of the seal portion MS and reduce the risk of foreign matter being caught.

  On the other hand, when the adhesiveness of the seal portion MS is improved by the positive pressure, even if the sealability of the seal portion MS is reduced at the time of rotational oscillation, the decrease in the sealability can be compensated for by the gas pressure. Further, even when the seal portion MS is worn or deformed with time, and the sealability is reduced, the decrease in the sealability can be compensated for by the pressure of the gas. Further, even when foreign matter is caught in the seal portion MS and the sealing property is deteriorated, the foreign matter is removed by the pressure of the gas, and the deterioration of the sealing property can be compensated. As described above, the cost of the seal portion MS for preventing the flow of water into the storage chamber 4d can be reduced, the structural problem can be improved, the durability problem can be improved, and the problem of foreign matter can be improved.

<Second embodiment>
Next, a second embodiment will be described. In the first embodiment, the second flow path is formed inside and one ring-shaped rotating member RP centering on the rotation axis Ax is provided. In contrast, in the second embodiment, two ring-shaped rotating members having different radii from each other are provided around the rotation axis Ax, and a second flow path is formed between these two rotating members. .

  FIG. 3 is a partial cross-sectional view of a damper system 1b according to the second embodiment. FIG. 4 is a cross section taken along line BB ′ of FIG. The same elements as those of the damper system 1 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

  The damper system 1b according to the second embodiment is different from the damper system 1 according to the first embodiment in that the fixing member FP1 is changed to a fixing member FP2. The fixing member FP2 is fixed to the engine block EB as compared with the fixing member FP according to the first embodiment, and the first flow path formed therein also has a substantially L-shape. Are different in that

  The damper system 1b according to the second embodiment has no rotating member RP as compared with the damper system 1 according to the first embodiment. Instead, as shown in FIG. 3, the damper system 1b includes a rotating member RP1 connected to the wall 4a. As shown in FIG. 4, the rotating member RP1 has a ring shape centered on the rotation axis Ax.

  Further, as shown in FIG. 3, the damper system 1b includes a rotating member RP2 connected to the wall 4a. As shown in FIG. 4, the rotation member RP2 has a ring-like shape centered on the rotation axis Ax, and has a smaller radius than the rotation member RP1. As shown in FIG. 3, a second flow path AP2 is formed between these two rotating members RP1, RP2.

Further, the damper system 1b is disposed on the fixed member FP2, is pressed against the rotating member RP1 in the circumferential direction, and includes a ring-shaped seal member S3 centered on the rotation axis Ax.
Further, the damper system 1b is disposed on the fixed member FP2, is pressed against the rotating member RP2 in the circumferential direction, and includes a ring-shaped seal member S4 centered on the rotation axis Ax. The radius of the seal member S4 is smaller than that of the seal member S3.

  As shown in FIG. 4, the air flow path SP of the pipe PP communicates with the first flow path AP1 provided inside the fixing member FP. The air supplied from the pipe PP flows into the inlet of the first flow path AP1, and the flowed air flows from the position OP2 in the direction of the rotation axis Ax (the depth direction on the paper surface of FIG. 4). As a result, air passes through the first flow path AP1, and is then supplied to the storage chamber 4d through the second flow path AP2.

<Third embodiment>
Subsequently, a third embodiment will be described. In the second embodiment, two ring-shaped rotating members having different radii from each other are provided around the rotation axis Ax, and a second flow path is formed between these two rotating members. In the third embodiment, there is no rotating member shown in the second embodiment, and the wall 4a of the plate 4 slides on two ring-shaped seal members provided on the fixed member.

  FIG. 5 is a partial cross-sectional view of a damper system 1c according to the third embodiment. FIG. 6 is a cross-sectional view taken along the line CC ′ of FIG. The same elements as those of the damper system 1 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

  The damper system 1c according to the third embodiment differs from the damper system 1 according to the first embodiment in that the fixing member FP1 is changed to a fixing member FP3. The fixing member FP3 has a ring shape, and is common to the fixing member FP2 of the second embodiment in that the first flow path formed inside has a substantially L-shape, The difference is that the width of the ring in the direction is wider than the fixing member FP3 of the second embodiment, and the seal members S5 and S6 are exposed not in the radial direction but in the direction of the rotation axis Ax and pressed against the wall 4a of the plate 4. ing. As a result, it is possible to prevent the outflow of air from the seal members S5 and S6 to the outside.

Further, the damper system 1c is disposed on the fixing member FP3, is pressed against the wall 4a of the plate 4 in the circumferential direction, and includes a ring-shaped seal member S5 centered on the rotation axis Ax.
Further, the damper system 1c is disposed on the fixing member FP3, is pressed against the wall 4a of the plate 4 in the circumferential direction, and includes a ring-shaped seal member S6 centered on the rotation axis Ax. The radius of the seal member S6 is smaller than that of the seal member S5.

  As shown in FIG. 6, the air flow path SP of the pipe PP communicates with a first flow path AP1 provided inside the fixing member FP. The air supplied from the pipe PP flows into the inlet of the first flow path AP1, and the flowed air flows from the position OP3 in the direction of the rotation axis Ax (the depth direction on the paper surface of FIG. 6). As a result, air passes through the first flow path AP1, and is then supplied to the storage chamber 4d through the second flow path AP2.

<Fourth embodiment>
Subsequently, a fourth embodiment will be described. In the third embodiment, the rotating member shown in the first and second embodiments is not provided, and the wall 4a of the plate 4 slides on the two ring-shaped seal members S5 and S6 provided on the fixed member. did. In the fourth embodiment, there is no rotary member similarly shown in the first and second embodiments, and the output shaft slides on two ring-shaped seal members provided on the fixed member. The second flow path AP2 is formed inside the output shaft 2. Thereby, air is supplied to the storage chamber 4d through the inside of the output shaft 2.

  FIG. 7 is a partial cross-sectional view of a damper system 1d according to the fourth embodiment. FIG. 8 is a cross section taken along the line DD ′ of FIG. The same elements as those of the damper system 1 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

  The damper system 1d according to the fourth embodiment differs from the damper system 1c according to the third embodiment in that the fixing member FP3 is changed to a fixing member FP4. The fixing member FP4 is fixed to the engine block EB so as to be non-rotatable with respect to the rotation axis Ax as compared with the fixing member FP3 according to the third embodiment, and a first flow path AP1 is formed inside. It is common in that it is.

  However, the seal member S7 and the seal member S8 are provided before and after in the direction of the rotation axis Ax with respect to the first flow path AP1, respectively, and are arranged radially inside the fixed member FP3 and have the ring about the rotation axis Ax. It is different in that it has a shape structure. The seal members S7 and S8 seal the gas (for example, air) from the first channel AP1 to the second channel AP2 so that the gas is not discharged to the outside from the outlet of the first channel AP1. I do. Specifically, for example, the seal members S7 and S8 are pressed against the output shaft 2. Thereby, it is possible to prevent the air discharged from the first flow path AP1 from flowing out.

  The damper system 1d according to the fourth embodiment is different from the damper system 1c according to the third embodiment in that the output shaft 2 is changed to the output shaft 2d. In the output shaft 2d, a second flow path AP2 through which a gas (for example, air) passes is formed, and the second flow path AP communicates with the storage chamber 4d. More specifically, as shown in FIG. 7, the output shaft 2d has a second flow path whose inlet faces the outlet of the first flow path AP1 with a space therebetween, and whose outlet communicates with the accommodation chamber 4d. AP2 is formed therein.

  As shown in FIG. 8, the air flow path SP of the pipe PP communicates with the first flow path AP1 provided inside the fixing member FP. The air supplied from the pipe PP flows into the inlet of the first flow channel AP1, and is discharged from the outlet of the first flow channel AP1 to a space provided between the fixing member FP4 and the output shaft 2d. Air in a space provided between the fixing member FP4 and the output shaft 2d is pushed out to a second flow path AP2 provided inside the output shaft 2d. Then, the air that has flowed into the second flow path AP2 flows from the position OP4 in the direction of the rotation axis Ax (the depth direction on the paper surface of FIG. 8). Thereby, air is supplied to the accommodation room 4d.

  FIG. 9 shows a first example of the structure of the seal portion. As shown in FIG. 9, the seal portion MS1 is a lip type. The seal portion MS1 is provided on the plate 6, and air can be discharged to the outside between the seal portion MS1 and the wall portion 4b as shown by an arrow A1. This air flow can prevent water from entering the storage chamber 4d.

  FIG. 10 shows a second example of the structure of the seal portion. As shown in FIG. 10, the seal portion MS2 is a lip type. The seal part MS2 is provided on the plate 6, and as shown by an arrow A2, air can be discharged outside between the seal part MS2 and the wall part 4b. This air flow can prevent water from entering the storage chamber 4d.

  FIG. 11 shows a third example of the structure of the seal portion. As shown in FIG. 11, the seal portion MS3 is a plate type. The seal portion MS3 is provided outside the plate 6 and outside the wall 4b of the plate 4, and is fixed outside the plate 6. As shown by an arrow A3, air can be discharged from the seal portion MS3 to the outside between the seal portion MS3 and the wall portion 4b. By this air flow, water can be prevented from entering the accommodation room 4d.

  As described above, the seal portions MS1 to MS3 in FIGS. 9 to 11 are configured to be able to discharge the gas in the storage chamber 4d to the outside. Thereby, the water is shielded by the flow of the air discharged to the outside, and the intrusion of the water into the storage chamber 4d can be prevented.

  FIG. 12 shows a fourth example of the structure of the seal portion. As shown in FIG. 12, the seal portion MS4 is a plate type. The seal portion MS4 is provided inside the plate 6 and inside the wall portion 4b of the plate 4, and is fixed inside the plate 6. When air is supplied to the accommodation room 4d, the pressure inside the accommodation room 4d rises, and the seal portion MS4 is pushed by the wall portion 4b of the seal portion MS4, so that the adhesion to the wall portion 4b is improved. By improving the adhesion in this way, water can be prevented from entering the storage chamber 4d.

  As described above, the seal portion MS4 in FIG. 12 is configured to be pressed against the wall portion 4b of the plate 4 or the plate 6 by the pressure of the gas (for example, air) supplied to the storage chamber 4d. Thereby, the adhesion between the seal portion MS4 and the wall portion 4b or the plate 6 of the plate 4 is improved, so that the inflow of water into the storage chamber 4d can be prevented, and the sliding resistance of the seal portion increases. Thereby, the movement of the rotating body of the plate 4 and the plate 6 is suppressed, and the vibration can be reduced.

  In each of the embodiments, as an example, the detection unit SU detects the depth of flooding, and the control unit CON controls the blower pump P according to the detected depth of flooding. However, the present invention is not limited to this. . The detection unit SU detects a temperature (for example, an outside air temperature, a temperature in an automobile, a temperature of a component of the damper system 1 and the like), and the control unit CON controls the blower pump P according to the detected temperature. You may. Thereby, when the temperature becomes high, air can be supplied from the blower pump P to the storage chamber, so that a rise in the temperature of the storage chamber 4d can be suppressed.

In each embodiment, the damper systems 1 to 1d may further include a filter for removing dust and moisture in the blown gas. For example, this filter may be provided between the air outlet of the blower pump P and the accommodation chamber 4d.
Further, in each embodiment, the blower pump P may use a dedicated machine, or may use an existing part of the vehicle (for example, a blower unit such as an air conditioner).
Further, in each embodiment, the atmosphere may be taken in by being connected to the existing intake equipment such as a snorkel of the vehicle and supplied to the accommodation room 4d.
Further, in each embodiment, there may be a plurality of air passages SP, and for example, a plurality of pipes PP, passages AP, and positions OP may be provided.

  As described above, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements in an implementation stage without departing from the scope of the invention. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Further, constituent elements of different embodiments may be appropriately combined.

  1, 1b, 1c, 1d damper system, 2d, rotating shaft, 4, rotating body (plate, first rotating body), 4a wall, 4b wall, 4c cylindrical part, 4d ... Housing room, 5: rotating body (plate, second rotating body), 6: rotating body (plate, third rotating body), 7: elastic part, 25: gear, Ax: rotating shaft, FP, FP2, FP3 , FP4 ... fixed member, JT ... joint part, MS ... seal part, RP, RP2 ... rotating member, PP ... pipe, P ... blower pump, CON ... control part, SU ... detection part, OU ... operation part, SP ... sending Wind channel, AP1: first channel, AP2: second channel

Claims (8)

An elastic portion arranged in the circumferential direction of the rotating shaft,
A first rotating body having a housing chamber for housing the elastic portion;
A second rotating body connected to the first rotating body via the elastic portion,
A third rotator connected to the second rotator,
A sealing portion for sealing a gap provided between the first rotating body and the third rotating body;
A gas supply unit that supplies gas into the storage chamber,
A damper system comprising: The damper system according to claim 1, wherein the seal portion is configured to be able to discharge gas in the storage chamber to the outside. The damper system according to claim 1, wherein the seal portion is configured to be pressed against the first rotating body or the third rotating body by a pressure of a gas supplied to the storage chamber. A pipe that communicates with the gas supply unit and passes gas supplied by the gas supply unit;
A first flow passage communicating with the pipe is provided therein, and is fixed so as not to be rotatable with respect to the rotation axis, and has a ring shape centered on the rotation axis;
Further comprising
A second flow path through which gas passes and communicates with the storage chamber is formed in the first rotating body,
A seal member for sealing the gas supplied from the gas supply unit so that the gas is not discharged to the outside from the outlet of the first flow path when the gas is sent from the first flow path to the second flow path. When,
The damper system according to any one of claims 1 to 3, comprising: A pipe that communicates with the gas supply unit and passes gas supplied by the gas supply unit;
A fixing member provided therein with a first flow path communicating with the pipe, and fixed non-rotatably with respect to the rotation shaft;
An output shaft in which a second flow path through which a gas passes is formed, and the second flow path communicates with the storage chamber;
A sealing member for sealing so that gas is not discharged to the outside from an outlet of the first flow path when gas is sent from the first flow path to the second flow path;
The damper system according to any one of claims 1 to 3, further comprising: A detection unit for detecting the depth of inundation,
A control unit that controls the gas supply unit according to the detected depth of the flooding,
The damper system according to any one of claims 1 to 5, comprising: A detecting unit for detecting a temperature,
A control unit that controls the gas supply unit according to the detected temperature,
The damper system according to any one of claims 1 to 5, comprising: An operation unit that receives an operation of a switching instruction to a rough road mode,
A control unit that controls the gas supply unit according to a switching instruction to the rough road mode,
The damper system according to any one of claims 1 to 5, comprising: