JP2016136051A - Torsional vibration reduction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting structure such that a rotational margin of relative rotation in rotational driving of an input member and an output member can be effectively set while strength and rigidity in a damper integrated state are secured without changing a basic configuration (annular shape, thickness, weight, etc.) of a conventional input-side rotary member nor increasing the number of components.SOLUTION: First and second input-side rotary members are formed in the same shape, and a plurality of rivet hole positions for fastening and fixing both the members are set adjacently at equal intervals and selectively used to optionally secure a rotational margin to relative rotation of the output-side rotary member for both clockwise and counterclockwise rotations.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a torsional vibration reducing device called a damper of a torque converter disposed between an engine that is a prime mover of an automobile and a transmission that is a power transmission device.

  A damper that is a torsional vibration reduction device (hereinafter, specifically referred to as a damper) is connected to an input side rotating member (drive plate and side plate) connected to a power transmission shaft of an engine and a turbine of a torque converter. The output side rotating member (hub clutch), the input side rotating member and the output side rotating member that are elastically coupled in the rotational direction, and the torsion spring disposed along the circumferential direction are connected in series. It is comprised by the intermediate member (back plate) to operate | move. (The expressions “input” and “output” in the above input side rotating member and output side rotating member are for convenience, and if either one is “input” and the other is “output”, It does not matter.)

  The damper of the torque converter functions as a torsional vibration reducing device that directly connects the engine and the transmission according to the running state and absorbs vibrations transmitted by driving the engine. The input-side rotating member is a member that is provided between the crankshaft of the internal combustion engine (engine) and the input shaft of the transmission and that provides input-side torque, and is realized by, for example, a drive plate and / or a side plate. . There is no particular limitation on the material and shape, but it is desirable that the material has a certain level of rigidity that can withstand rotation and has a substantially circular shape (disc shape) in plan view so as to be compatible with rotational movement.

  The output side rotation member refers to an output side member to which torque from the input side is transmitted, and is realized by, for example, a hub clutch. There are no particular restrictions on the material and shape, but it is desirable that the material and shape be made of a material having a certain level of rigidity that can withstand vibrations caused by rotation, and a substantially circular shape (disc shape) in plan view so as to be compatible with rotational motion. The input side rotating member and the output side rotating member are disposed so as to be relatively rotatable.

  The rotating member has a spring accommodating portion on the circumferential surface, and a spring (torsion spring) that performs expansion / contraction motion in conjunction with the relative rotation of the input side rotating member and the output side rotating member is accommodated. With the function to be. More specifically, the rotating member includes contact portions on both ends where the torsion spring contacts.

  These members require a high degree of rigidity because a rotational torque that varies arbitrarily from a high speed to a low speed associated with engine driving must be transmitted in a timely manner while absorbing torsional vibrations via a torsion spring buffer. At the same time, it is required to ensure structural dimensions, stability and long-term reliability in order to perform sequential functions in response to changes in the positive and negative rotation directions.

  In particular, the drive plate and side plate, which are input side rotating members, smoothly transmit the input rotational torque without being attenuated. Mass balance is required.

  In addition, in the damper structure having the above-described structure, in order to enable relative rotation between the input side rotating member and the output side rotating member while efficiently transmitting the rotational torque with the torque transmission shaft as the rotation center, It is desirable to take a sufficient angle (degree of freedom) of relative rotation with respect to the rotation axis of both members. However, since this degree of freedom is greatly restricted by the arrangement of the torsion spring and the position of the rivet for joining, various technical studies have been conducted on the shape and structure of each member constituting the damper.

  In Patent Document 1 (Japanese Patent Application Laid-Open No. 2014-145377), a drive plate and a side plate, which are input side rotating members, have substantially the same shape, a convex structure rib is provided on one of them, and a rib fitting opening on the other The technical idea is disclosed about the structure which includes the hub clutch which is an output rotation member in the state in which both plates are in the state where the opposing surfaces are aligned.

  When the convex structure rib is fitted and joined to the opening for rib engagement, the drive plate and the side plate are integrated as an input side rotation member. Both the convex structure rib and the rib fitting opening can be easily manufactured and processed by pressing from the basic shape member of the input side rotating member having the same shape. However, in this method, since the drive plate and the side plate are not completely the same shape, it is not possible to achieve the integration of members (common parts) as the same member in the manufacturing process.

  Patent Document 2 (Japanese Patent Laid-Open No. 2013-217450) has a structure in which a drive plate that is an input side rotation member and a side plate have the same shape, and a facing surface is fitted through a hub clutch that is an output side rotation member. The technical idea is disclosed about the torsional vibration reducing device.

  However, this technical idea allows the freedom of arrangement of two types of large and small torsion springs by arranging a fixing portion of a rivet for joining and fixing two output side rotating members on the outermost circumferential side on the circumference. The main purpose is to enlarge and eliminate the rivet relief structure of the hub clutch. For this reason, some weakness remains in the joint fixing force on the inner peripheral side between the two output side rotating members, and structurally weak against the swelling and contraction force of both plates in the direction of the rotation axis. Further, this technical idea does not include a technical idea such as selecting and setting the degree of freedom of rotation according to the difference between the left and right rotational directions of the relative rotation of the hub clutch.

  As described above, the basic form (annular shape, thickness, weight, etc.) of the input-side rotating member and output-side rotating member is not changed, the number of parts is reduced, and the strength and rigidity of the torsional vibration reduction device are integrated. It is desired to develop a damper structure that can ensure the degree of freedom of relative left-right rotation in the rotational drive of the input-side rotating member and the output-side rotating member while sufficiently ensuring the above.

JP 2014-145377 A JP 2013-217450 A

  A torsional vibration reducing device damper in a torque converter that is an engine output transmission mechanism is composed of an input rotating member and an output rotating member having a substantially disk ring shape, and a spring interposed by having a structure capable of relative rotation of both rotating members. It exhibits the function of absorbing torsional vibrations using elastic force such as. In order to transmit sudden rotational torque smoothly to the output side, the torsional vibration reduction device as a whole must have sufficient strength and rigidity, and it is necessary to fix it by rivets on the circumference of the rotating member. It was. However, the plurality of rivet fixings constrain the relative rotation angle (degree of freedom) of the left and right rotations of both rotating members, and limit the arrangement and number of torsion springs.

  The present invention is intended to solve such problems in the prior art, and does not change the basic form (annular shape, thickness, weight, etc.) of the conventional input side rotating member, and the number of parts is reduced. It is an object of the present invention to provide a composite structure that can ensure the degree of freedom of relative left and right rotation in the rotational drive of the input side rotating member and the output side rotating member while ensuring the strength and rigidity as a damper integrated without increasing it. To do.

In order to solve such a problem, the torsional vibration reduction device according to the present invention is:
First and second input side rotating members having substantially the same ring shape and facing each other;
A substantially disk-ring-shaped output-side rotating member that is sandwiched between the first and second input-side rotating members and is disposed so as to be relatively concentric and relatively rotatable in the opposite direction;
A spring accommodating portion formed at substantially equal intervals in the circumferential direction of the first and / or second input side rotating member and the output side rotating member, and having both ends in the relative rotational direction as spring receiving portions;
A spring accommodated in the spring accommodating portion;
Comprising,
In the rivet fixing between the first input side rotating member and the second input side rotating member, there are two or more rivet fixing holes adjacent to each other on the same radius circumference with respect to one rivet fixing,
By selecting any one of the rivet fixing holes, it is possible to select to make the relative rotation range of the output side rotation member relative to the first and second input rotation members symmetrical or asymmetric.

  Hereinafter, the first input side rotating member is referred to as a drive plate, and the second input side rotating member is referred to as a side plate. Hereinafter, the output side rotation member is referred to as a hub clutch.

  In the torsional vibration reduction device according to the present invention, the drive plate as the input side rotating member and the side plate have the same shape, and the hub clutch as the output side rotating member is sandwiched and fixed by a rivet or the like so that they face each other. Therefore, the mass balance in the rotation axis direction and the vertical direction of the input side rotation member with respect to the output side rotation member becomes uniform, and the generation of distortion deformation force during rotation can be limited to the minimum. In other words, axial vibration, vibration, and deflection can be minimized in rotational drive even when sudden rotational torque is generated or sudden torque fluctuations exceed expectations.

  The material, size, thickness, and shape of the conventional drive plate and side plate structure can be sufficiently tolerated, and can greatly contribute to the weight reduction, cost reduction, and long-term stability of the torque converter.

  Also in the manufacture of drive plate and side plate members, it is only necessary to manufacture two types of input side rotating members as compared to the conventional manufacturing of two parts having different shapes, resulting in a large manufacturing cost. This leads to a reduction in the number of parts and a reduction in management costs.

  In the torsional vibration reduction device according to the present invention, in the rivet fixing of the drive plate and the side plate, one rivet fixing has two or more adjacent rivet fixing holes on the same radius circumference. By selecting this rivet fixing hole, the relative rotatable range of the hub clutch, which is the output side rotating member, with respect to the drive plate and the side plate can be made asymmetric. Similarly, it is also possible to choose to make it symmetrical.

  In the torsional vibration reduction absorbing function, the hub clutch moves in a reverse rotation (referred to as relative reverse rotation) relative to the rotation (referred to as the forward rotation direction) of the input side rotation members of the drive plate and the side plate. At this time, the movement (rotation angle) of the opposite reverse rotation on the hub clutch side inevitably increases with respect to the sudden rotation drive of the input side rotation member. Next, the relative reverse rotation of the hub clutch is counteracted by the elastic buffering of the buffer spring (torsion spring), and this time it rotates in the forward rotation direction. However, the rotation angle in the forward rotation direction due to the reaction becomes small.

  Thus, the torsional vibration is attenuated by the specific relative rotational movement of the input-side rotating member and the output-side rotating member of the torsional vibration reducing device described above. The rotational angle allowed for the relative rotation of both the rotating members ( The degree of freedom of rotation is naturally not infinite, and the relative rotational angle (degree of freedom of rotation) is subject to certain restrictions because it is constrained by the shape of the input side rotating member and the output side rotating member and the fixed position of the rivet or the like. . Similarly, as described above, the rotational angle at which the reaction is positively rotated is also restricted. In other words, the relative reverse and forward rotation angles of the hub clutch are restricted by being sandwiched between two rivets provided on the same radius circumference of both input side rotating members.

  However, according to the torsional vibration reducing device according to the present invention, two rivet fixing holes for fastening the drive plate and the side plate are provided in parallel on the same radius circumference. For example, when all of the rivet holes on the reverse rotation direction side are selected from the two rivet holes arranged in parallel on the same radius, the rotation angle on the relative reverse rotation side should be set larger than the rotation angle on the positive rotation side. Can do.

  As a result, the reverse rotation movement (rotation angle) of the hub clutch relative to the sudden rotation drive of the input side rotation member inevitably increases, but the rotation angle (rotational freedom) for the reverse rotation is set large. Then, the rotation angle (degree of freedom of rotation) in the forward rotation direction that rotates small as the reaction of the hub clutch can be set small.

  That is, the torsional vibration reduction device according to the present invention has two or more rivet fixing holes adjacent to one rivet fixing position as described above, and by selecting one of the rivet fixing holes, The relative rotatable range of the hub clutch with respect to the input rotating member can be asymmetrical. An alternative design is possible that increases the freedom in the large relative rotational direction of the hub clutch and reduces the freedom in the small rotational direction.

  In addition, the drive plate and the side plate have the same shape and are opposed to each other. The rivet fixing holes can be arbitrarily selected by providing two rivet fixing holes in parallel on the same radius circumference. Since the identity of the drive plate and the side plate that are symmetrical to the left and right is not impaired, there is no change in that they can be shared as the same component.

  Similarly, since the torsional vibration reducing device according to the present invention is premised on fixing the rivets inside the circumferential surfaces of the drive plate and the side plate, the fastening strength inside the circumferences of both plates is sufficiently maintained. That is, it is possible to avoid the fragility of the joint fixing force inside the circumference of both plates and the fear of the swelling and contraction forces of both plates in the direction of the rotation axis.

  The torsional vibration reducing device according to the present invention has a substantially central position on the same radius circumference of a plurality of protrusions formed at equal angles on the outer periphery of the hub clutch when the rivet is fixed between the drive plate and the side plate. It has a center hole of multiple rivet holes in the part, and when rivet is fixed, by selecting either or multiple rivet fixing holes, the left and right relative rotation range with respect to the drive plate and side plate of the hub clutch is symmetric or asymmetric You can choose to be.

  For example, when a rivet hole is selected at a substantially central portion of a plurality of rivet holes on the same radius circumference of the hub clutch protrusions, and when the rivet hole is fixed from the rivet hole at the substantially central portion, etc. When two rivet holes at a distance are selected and rivets are fixed, the left and right relative rotatable ranges with respect to the drive plate and the side plate of the hub clutch are the same angle and can be made symmetrical.

  In addition, the torsional vibration reducing device according to the present invention provides a rivet for a relative reverse rotation that attempts to rotate at a large rotation angle with respect to the abrupt rotational torque of the input side rotating member that has received a sudden rotational torque. Can be set large, and the angular distance with respect to the forward rotation direction that reacts in the opposite direction can be set small, which has a great merit of increasing the degree of design freedom.

  In addition to avoiding the risk of contact with the rivet position due to a sudden relative reverse rotation of the hub clutch leading to breakage and the like, it is possible to design a safety design that is assumed in advance. Further, the rotation distance can be arbitrarily set according to the width of the interval between the rivet holes set in parallel.

  Whichever of the rivet holes set in parallel is used, if the number of rivets and the rivet fixing interval for fixing the drive plate and the side plate to each other are uniform on the entire circumference, a strong fixing force can be maintained.

  The torsional vibration reduction device according to the present invention is also symmetrical in that the rotation margin of the hub clutch that rotates relative to the rotation direction is asymmetric with respect to the rotation direction by providing a plurality of rivet fixing holes. Therefore, the input side rotating member having the same shape with selectivity can be provided as a common member.

  The torsional vibration reduction device according to the present invention has a drive plate and a side plate which are input side rotating members having the same shape, and a plurality of rivet hole positions for fastening and fixing both members are set at equal intervals and selected for use. Thus, the rotational freedom degree relative to the relative rotation of the hub clutch that is the output side rotating member can be arbitrarily set and secured for both the left and right rotations.

  In addition, the torsional vibration reducing device according to the present invention does not change the basic form (annular shape, thickness, weight, etc.) of the input-side rotating member, but is made common by the symmetrical structure of the input-side rotating member, and integrated with the damper. As a result, it contributes to the efficient operation of a torque converter that maintains its long-term reliability and stability while ensuring its strength and rigidity.

  According to the torsional vibration reduction device damper according to the present invention, since it is possible to cope with the cost reduction of the input side rotating member, it is possible to realize a torsional vibration reduction device that is more space-saving, inexpensive, and has high long-term reliability and stability. Become.

  As a result, the torque converter function including the damper and the function as a whole of the transmission, the weight reduction, and the long-term reliability can be secured, and the technical and economic effects in the automobile engine drive mechanism are great.

It is the conceptual diagram which showed the structure of the member of the torsional vibration reduction apparatus which concerns on one Embodiment of this invention. It is the external view which showed the whole torsional vibration reduction apparatus which concerns on one Embodiment of this invention. It is the external view which showed the whole torsional vibration reduction apparatus which concerns on one Embodiment of this invention. It is the external view which showed the whole torsional vibration reduction apparatus which concerns on one Embodiment of this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the following, the range necessary for the description for achieving the object of the present invention is schematically shown, and the range necessary for the description of the relevant part of the present invention will be mainly described. According to a known technique.

  FIG. 1 is a perspective view showing a structural form of a torsional vibration reducing apparatus according to an embodiment of the present invention for each member. As shown in the figure, from the drive engine side (the right side in FIG. 1), the drive plate 11, the back plate 14, the hub clutch 13, the side plate 12, and the hub spline 18 in this order are substantially disk-shaped. The rotating member is configured.

  As shown in FIG. 1, the torsion spring 15 is sandwiched from the outer periphery by a housing portion through which the drive plate 11 and the side plate 12 penetrate, and is arranged with the spring center axis aligned with the plane direction of the hub clutch 13. It has a structure. The torsion spring 15 has a large size 15a and a small size 15b. The torsion spring 15 has a large size, and four sets (eight) are shown in FIG. 1, and the torsion spring 15 has a function of absorbing torsional vibration by its spring elastic force. In the present invention, the number, size and arrangement of the torsion springs 15 are not limited at all. The illustration of the power transmission shaft is omitted.

  The drive plate 11 and the side plate 12 of the torsional vibration reduction device according to the embodiment of the present invention are members having the same shape and face the same surface with respect to the hub clutch 13 sandwiched therebetween as shown in FIG. It is comprised by the aspect (same-surface opposing form). Since the drive plate 11 and the side plate 12 that are the input side rotating members are configured in the same shape and opposed form, vibration and distortion in the axial direction during rotation can be minimized. Further, the rotational drive becomes smooth and the rotational torque can be transmitted to the hub clutch and the power transmission shaft without loss.

  The drive plate 11 and the side plate 12 are provided with rivet holes 100 at equal intervals on the circumference, and both plates are fastened and fixed by the rivet 19. Further, the drive plate 11 and the side plate 12 have a structure that is firmly fixed by a large rivet 20 in the vicinity of the outer periphery. In FIG. 1, the rivet hole 100 and the rivet 19 are provided at four positions on the inner peripheral side of the drive plate 11 and the side plate 12 each having a substantially disc ring shape at intervals of 90 degrees from the rotation center. The arrangement is not limited to the 90-degree interval, but may be any uniform angle.

  The outer periphery of the hub clutch 13 has protrusions 21 at regular intervals on the circumference. In FIG. 1, the number of the protrusions 21 is four, but this number is not limited as long as they are arranged at an equal angle. During the rotation drive, the hub clutch 13 functions to reduce torsional vibration by rotating in the reverse direction relative to the rotation of the drive plate 11 and the side plate 12 that are input side rotation members. That is, the torsional vibration is reduced by the side of the protrusion 21 of the hub clutch 13 contacting the torsion spring 15 and receiving the buffer of the spring as it rotates.

  When the hub clutch 13 rotates, the protrusion 21 of the hub clutch 13 contacts the torsion spring 15 and contracts, but at this time, the hub clutch 13 is in a state closest to the rivet 19. If the rivet 19 is present within the allowable distance that the torsion spring 15 contracts, the protrusion 21 of the hub clutch 13 will be bumped and damaged. However, the protrusion 21 does not contact the large rivet 20 located on the outermost periphery of the drive plate 11 and the side plate 12.

  In the torsional vibration reducing device according to an embodiment of the present invention, the arrangement of the rivet holes 100 and the rivets 19 is controlled at the design stage in order to avoid the protrusions 21 of the hub clutch 13 from contacting the rivets 19 as described above. It has the function to do.

  FIG. 2 is an external view showing the entire torsional vibration reducing device according to one embodiment of the present invention. As shown in FIG. 2, the torsional vibration reducing device 1 has a substantially disk shape and has a ring shape having a substantially circular through hole at the center. Between the side plate 12 (including the hub spline 18) drawn on the upper surface side in the same figure and the drive plate 11 drawn on the lower surface side, there are a hub clutch 13, a back plate 14, a torsion spring large 15a and a torsion. The small spring 15b is sandwiched.

  2 is an external view showing a state in which the side plate 12 (including the hub spline 18) drawn on the front surface side in the drawing is removed. As shown in the figure, the drive plate 11 and the side plate 12 have two rivet holes 100 set in parallel on the same circumference. In the case of FIG. 2, the set of two rivet holes is set at four locations at equal angular intervals (90 degrees) on the inner peripheral surfaces of both plates. (Hereinafter, a plurality of rivet holes at substantially the same location set at equal angle intervals will be referred to as a rivet hole set.) However, the present invention does not limit the rivet hole set to four locations as shown in FIG. .

  FIG. 3 is an external view showing the entire torsional vibration reducing apparatus according to one embodiment of the present invention. As shown in the figure, the drive plate 11 and the side plate 12 are fastened with rivets 19 using only the rivet holes 100 a of the two sets of rivet holes 100. In this case, the other four rivet hole sets are the same selection. 2, when the relative reverse rotation of the hub clutch 13 is the left rotation in FIG. 3, the side surface of the protrusion 21 of the hub clutch 13 is inserted into the rivet hole 100a. In contact with the rotation of the angle A.

  Similarly, as shown in FIG. 3, when only the rivet hole 100b of the set of two rivet holes 100 is used to fasten with the rivet 19, the side surface of the protrusion 21 of the hub clutch 13 is inserted into the rivet hole 100b. The rivet 19 is brought into contact with the rotation of the angle B. That is, in the rivet fastening and fixing, the relative rotation angle (rotational angle margin) of the hub clutch 13 can be changed depending on which of the rivet holes 100a or 100b is selected.

  As an example shown in FIG. 3, the drive plate 11 and the side plate 12 which are input side rotating members rotate right, and the hub clutch 13 relatively rotates counterclockwise. However, the torsional vibration is damped by repeating the left and right relative rotation of the hub clutch 13, and the relative rotation direction and the magnitude of the hub clutch 13 are determined by the rotation direction of the input side rotation member. Therefore, the relative rotation angle (rotation angle margin) of the hub clutch 13 is predicted in advance by setting the rotation direction of the input side rotation member, and either the rivet hole 100a or 100b of the rivet hole set may be selected. Become.

  Further, since the rivet hole set is set at equal intervals on the circumference of the drive plate 11 and the side plate 12, the same shape (symmetrical shape) of both plates is maintained. Therefore, both plates can be handled as a common member.

  FIG. 4 is an external view showing the entire torsional vibration reducing device according to one embodiment of the present invention. 4 is an external view showing a state in which the side plate 12 (including the hub spline 18) drawn on the surface side in the drawing is removed. As shown in the figure, in the rivet hole 100 set of the drive plate 11 and the side plate 12, three rivet holes 100c, 100d and 100e are set in parallel on the same circumference. In the case of FIG. 4, a set of three rivet holes is set at four locations at equal angular intervals on the inner peripheral surfaces of both plates. However, as described above, the present invention does not limit the set of rivet holes to four places.

  As shown in FIG. 4, when the drive plate 11 and the side plate 12 are fastened with the rivet 19 using only the rivet holes 100d of the three sets of rivet holes 100, the other four sets of three rivet holes are the same. It becomes a choice. As shown in FIG. 4, when the relative reverse rotation of the hub clutch 13 is the left rotation in FIG. 4 when rotating, the side surface of the projection 21 of the hub clutch 13 is inserted into the rivet hole 100d. To contact with rotation of angle C.

  Since this angle C is substantially in the middle position between the two protrusions 21 of the hub clutch 13, the protrusion 21 of the hub clutch 13 is similarly moved to the rivet 19 at the angle C when the hub clutch 13 rotates clockwise. Will be in contact. In this case, the relative rotation angle (rotation angle margin) in contact in both the left and right rotations is the same.

  Similarly, as shown in FIG. 4, when two rivet holes 100d and 100e of three sets of rivet holes 100 are used and fastened with a rivet 19, the side surface of the protrusion 21 of the hub clutch 13 is a rivet hole. The rivet 19 inserted in 100d is brought into contact with rotation of an angle C. When the rivet 19 is turned right, the rivet 100 in the rivet hole 100e is brought into contact with the angle D.

  In this case, the drive plate 11 and the side plate 12 are fastened by the two rivets 100 using the two rivet holes 100d and 100e, and sufficient fixing strength can be obtained. On the other hand, in the relative rotation of the hub plate 13, the margin angle of the rotation angle C of the hub plate 13 that rotates the drive plate 11 and the side plate 12, which are input side rotating members, in a reverse direction relative to the sudden initial drive is increased. On the other hand, the margin of the reduced angle D can be obtained for the clockwise rotation that is a reaction.

  In addition, since the three rivet hole sets are set on the circumference of the drive plate 11 and the side plate 12 at equal intervals, the same shape of both plates including the one unused rivet hole c (symmetrical) (Shape) is maintained, both plates can be handled as a common member. That is, by setting the number of rivet hole sets and the rivet hole interval in advance at the time of design, the rivet hole to be used can be selected later to select the degree of rotation margin relative to the relative rotation of the hub clutch 13.

  As described above, in the torsional vibration reducing device according to an embodiment of the present invention, the shape of the drive plate and the side plate, which are input side rotating members, is the same shape, and the rivet hole position for fastening and fixing both members is as in the rivet hole set. By setting a plurality of adjacent intervals at equal intervals and selectively using them in fastening, the rotation margin with respect to the relative rotation of the hub clutch, which is the output side rotation member, can be arbitrarily set for both the left and right rotations.

  Further, the drive plate and the side plate can be easily manufactured by a die pressing process in the direction of the rotation axis from a substantially disk-shaped base material. Therefore, using both plates as a common member greatly contributes to cost reduction in manufacturing including mold costs and shortening of work period.

  The torsional vibration reduction device according to the present invention does not limit the shape, position, number, and size of the rivet hole 100. However, it is preferable that the above-mentioned function is exhibited most preferably in the middle and substantially in the center with respect to the protrusion 21 of the hub clutch 13. If the drive plate and side plate with integrated front and back shapes are designed to center and support the hub clutch 13 from both the front and back sides, the torsional vibration reduction function and stable and highly efficient torque transmission function , It will be possible to demonstrate more advanced.

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. Moreover, even when the present invention is incorporated into a secondary product, these are all part of the present technical idea.

  The present invention is intended to provide a torsional vibration reduction device damper for a torque converter that has been devised in order to ensure a high quality for maintaining a high damping effect and a high permissible torque for a long period of time. It is a technology that is highly likely to be used not only in the present invention but also in a wide range of industrial fields having an engine drive system. The industrial applicability of the present invention is great because it efficiently transmits the output of the drive engine, ensures high reliability, and leads to weight reduction and cost reduction.

1 ... Torsional vibration reduction device 11 ... Drive plate (input side rotating member)
12 ... Side plate (input side rotating member)
13 ... Hub clutch (output side rotating member)
14 ... Back plate (intermediate member)
15a ··· Torsion spring large 15b ··· Torsion spring small 18 ··· hub spline 19 ··· rivet 20 · · · large rivet 21 ··· protrusion 100 ··· rivet hole

Claims (2)

First and second input side rotating members having substantially the same ring shape and facing each other;
A substantially disk-ring-shaped output-side rotating member that is sandwiched between the first and second input-side rotating members and is disposed so as to be relatively concentric and relatively rotatable in the opposite direction;
A spring accommodating portion formed at substantially equal intervals in the circumferential direction of the first and / or second input side rotating member and the output side rotating member, and having both ends in the relative rotational direction as spring receiving portions;
A torsional vibration reducing device comprising a spring accommodated in the spring accommodating portion,
In the rivet fixing between the first input side rotating member and the second input side rotating member, there are two or more rivet fixing holes adjacent to each other on the same radius circumference with respect to one rivet fixing,
The torsion characterized in that by selecting any one of the rivet fixing holes, the relative rotation range of the output-side rotating member with respect to the first and second input rotating members can be selected to be symmetric or asymmetric. Vibration reduction device. In rivet fixation between the first input side rotating member and the second input side rotating member,
The center of the plurality of rivet holes is provided at the center of the same radius on the outer periphery of the output-side rotating member at the same radius around the plurality of protrusions formed at equal angles. By selecting one or a plurality of rivet fixing holes, it is possible to select to make the relative rotation range of the output side rotation member relative to the first and second input rotation members symmetrical or asymmetric. The torsional vibration reducing device according to claim 1.

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