JP2006207500A - Link mechanism and variable displacement compressor using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a link mechanism capable of reducing manufacturing cost and a variable displacement compressor using the same. <P>SOLUTION: The link mechanism is provided with an arm 41 projecting from a rotary member 21 toward an inclination member 24, an arm 42 projecting from the inclination member 24 toward the rotary member 21, and a link 45 overlapping with the arm 41 of the rotary member and the arm 43 of the inclination member in a rotary torque transmission direction. The link 45 and at least one of the arm 41 of the rotary member and the arm 43 of the inclination member slidingly abut rotatably around a hinge shaft part 48 formed as one unit with one of those. A connecting pin which was conventionally used is reduced by the hinge shaft part 48 formed as one unit and manufacturing cost of the link mechanism is reduced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a link mechanism and a variable capacity compressor using the link mechanism.

A variable capacity compressor is attached to a drive shaft, a rotor fixed to the drive shaft and rotating integrally with the drive shaft, and a slant that is attached to the drive shaft via a slidable sleeve and is tiltable with respect to the drive shaft. And a discharge stroke can be changed by changing a piston stroke by changing an inclination angle of the swash plate. In order to change the inclination angle of the swash plate while transmitting torque from the rotor to the swash plate, a link mechanism is interposed between the rotor and the swash plate (see, for example, Patent Document 1 and Patent Document 2).
JP 2003-172417 A JP-A-10-176658

  In such a prior art, the components constituting the link mechanism include a rotor arm formed integrally with the rotor, a swash plate arm formed integrally with the swash plate, a link, and two connecting pins. Consists of. Therefore, the link mechanism has a large number of parts, and such a link mechanism is expensive to manufacture.

  In the prior art, the first connecting pin is press-fitted and fixed to the link arm, and is inserted into the rotor arm with a gap so as to be rotatable. On the other hand, the second connecting pin is press-fitted and fixed to the link arm, and is inserted into the swash plate arm with a gap so as to be rotatable. For this reason, the parts where the connecting pins are press-fitted into the press-fitting holes of the link arm require high-precision dimensional control at the time of manufacturing parts and precise work at the time of assembly. The link mechanism provided increases the manufacturing cost.

  The present invention has been made based on such a conventional technique, and an object thereof is to provide a link mechanism capable of reducing the manufacturing cost and a variable capacity compressor using the link mechanism.

According to the first aspect of the present invention, a rotating member that is fixed to the drive shaft and rotates integrally is connected to a tilting member that is slidably attached to the drive shaft and attached to the drive shaft so as to be inclined. A link mechanism that transmits the rotational torque of the rotating member to the tilting member while allowing the tilting member to tilt;
An arm projecting from the rotating member toward the tilting member, an arm projecting from the tilting member toward the rotating member, an arm of the rotating member, an arm of the tilting member, and a rotational torque transmission direction And a link that transmits the rotational torque of the rotating member to the tilting member, and one of the arm of the rotating member or the arm of the tilting member and the link are formed separately from each other. The other of the arm of the rotating member or the arm of the tilting member and the link are slidably rotatable about a hinge shaft portion formed integrally with any one of them. It is characterized by being in contact.

  According to a second aspect of the present invention, a rotating member that is fixed to a drive shaft and rotates integrally is connected to a tilting member that is slidably attached to the drive shaft and attached to the drive shaft so as to be inclined. A link mechanism for transmitting the rotational torque of the rotating member to the tilting member while allowing the tilting member to tilt, and an arm projecting from the rotating member toward the tilting member; and the tilting member An arm projecting from the rotating member to the rotating member, and a link that overlaps the rotating member arm and the tilting member arm in the rotational torque transmission direction and transmits the rotational torque of the rotating member to the tilting member, And the arm of the tilting member is slidably contacted about a hinge shaft formed integrally with any one of the arm and the link of the rotating member. Wherein the link, characterized in that rotatably slidable contact about the hinge shaft portion formed integrally with one of these.

According to a third aspect of the present invention, there is provided a drive shaft, a rotating member fixed to the drive shaft and rotating integrally with the drive shaft, and a tilting device slidably attached to the drive shaft and attached to the drive shaft so as to be inclined. A member, a link mechanism that connects the rotating member and the tilting member to allow tilting of the tilting member, and transmits rotational torque of the rotating member to the tilting member, and accompanying the rotational movement of the tilting member A variable capacity compressor comprising a piston that reciprocates in a cylinder bore,
The link mechanism includes an arm protruding from the rotating member toward the tilting member, an arm protruding from the tilting member toward the rotating member, an arm of the rotating member, and an arm of the tilting member And a link that overlaps in the rotational torque transmission direction and transmits the rotational torque of the rotating member to the tilting member, and one of the arm of the rotating member or the arm of the tilting member and the link are different from these. It is connected rotatably around a connecting pin formed on the body, and the other of the arm of the rotating member or the arm of the tilting member and the link is centered on a hinge shaft portion formed integrally with either of them. It is characterized by being in sliding contact so as to be freely rotatable.

According to a fourth aspect of the present invention, there is provided a drive shaft, a rotating member fixed to the drive shaft and rotating integrally with the drive shaft, and a tilting device slidably attached to the drive shaft and attached to the drive shaft so as to be inclined. A member, a link mechanism that connects the rotating member and the tilting member to allow tilting of the tilting member, and transmits rotational torque of the rotating member to the tilting member, and accompanying the rotational movement of the tilting member A variable capacity compressor comprising a piston that reciprocates in a cylinder bore,
The link mechanism includes an arm protruding from the rotating member toward the tilting member, an arm protruding from the tilting member toward the rotating member, an arm of the rotating member, and an arm of the tilting member And a link that overlaps in the rotational torque transmission direction and transmits the rotational torque of the rotating member to the tilting member, and the arm of the rotating member and the link are formed integrally with any one of these The arm of the tilting member and the link are slidably contacted so as to be rotatable about a hinge shaft portion formed integrally with any one of them. Features.

  According to the first aspect of the present invention, the number of connecting pins that have been conventionally required is reduced by one, and the press-fitting site between the connecting pin and the press-fitting hole that has conventionally been two is reduced by one. Therefore, the manufacturing cost of the link mechanism is reduced.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the connecting pin is abolished at the connecting part between the tilting member and the link having a smaller operating angle than the connecting part between the rotating member and the link. It is preferable that play does not occur.

  According to the invention of claim 3, two connecting pins that have been conventionally required are abolished, and the press-fitting portions between the connecting pins and the press-fitting holes that are conventionally two are eliminated. Therefore, the manufacturing cost of the link mechanism is reduced.

  According to the invention of claim 4, two connecting pins that are conventionally required are reduced by one, and the press-fitting sites between the connecting pins and the press-fitting holes that are conventionally two are reduced by one. For this reason, the manufacturing cost of the compressor is reduced by reducing the manufacturing cost of the link mechanism.

  According to the invention of claim 5, in addition to the effect of the invention of claim 4, the connecting pin is abolished at the connecting part between the tilting member and the link having a smaller operating angle than the connecting part between the rotating member and the link. It is preferable that play does not occur.

  According to the sixth aspect of the present invention, the two connecting pins that have been conventionally required are eliminated, and the press-fitting portions between the connecting pins and the press-fitting holes that have been conventionally two are eliminated. For this reason, the manufacturing cost of the compressor is reduced by reducing the manufacturing cost of the link mechanism.

  Hereinafter, a variable capacity compressor according to an embodiment of the present invention and a link mechanism used therefor will be described with reference to the drawings.

"Overall structure of variable capacity compressor"
1 and 2 are overall sectional views of the variable capacity compressor. FIG. 1 shows a full stroke state, and FIG. 2 shows a destroke state.

  The compressor 1 of this embodiment is a swash plate type variable capacity compressor as shown in FIGS. The variable capacity compressor 1 includes a cylinder block 2 having a plurality of cylinder bores 3 arranged at equal intervals in the circumferential direction, and a crank chamber 5 between the cylinder block 2 joined to the front end face of the cylinder block 2. And a rear housing 6 joined to the rear end surface of the cylinder block 2 via a valve plate 9 to form a suction chamber 7 and a discharge chamber 8. The cylinder block 2, the front housing 4 and the rear housing 6 are fastened and fixed by a plurality of through bolts B.

  The valve plate 9 includes a suction hole 11 that communicates the cylinder bore 3 and the suction chamber 7, and a discharge hole 12 that communicates the cylinder bore 3 and the discharge chamber 8.

  A valve mechanism (not shown) for opening and closing the suction hole 11 is provided on the cylinder block 2 side of the valve plate 9, while a valve mechanism (not shown) for opening and closing the discharge hole 12 is provided on the rear housing 6 side of the valve plate 9. Is provided. A gasket is interposed between the valve plate 9 and the rear housing 6 so that the airtightness of the suction chamber 7 and the discharge chamber 8 is maintained.

  A drive shaft 10 is supported by bearings 17 and 18 in support holes 19 and 20 in the center of the cylinder block 2 and the front housing 4, and the drive shaft 10 is rotatable in the crank chamber 5.

  In the crank chamber 5, a rotor 21 as a “rotating member” fixed to the drive shaft 10, a substantially spherical sleeve 22 slidably mounted on the drive shaft 10, and tilting and rotating on the sleeve 22. And a swash plate 24 as a “tilting member” that is detachably mounted. The swash plate 24 includes a hub 25 that is attached to the sleeve 22 so as to be tiltable and rotatable, and a swash plate body 26 that is fixed to a boss portion 25 a of the hub 25.

  A piston 29 is slidably accommodated in each cylinder bore 3, and this piston 29 is connected to a swash plate body 26 of the swash plate 24 via a pair of hemispherical piston shoes 30, 30.

  A link mechanism 40 is interposed between the rotor 21 as the rotating member and the hub 25 of the swash plate 24 as the tilting member, and the rotor is allowed to change the tilt angle of the swash plate 24 by this link mechanism 40. The rotational torque 21 can be transmitted to the swash plate 24.

  When the drive shaft 10 rotates, the rotor 21 rotates integrally with the drive shaft 10, and the rotation of the rotor 21 is transmitted to the swash plate 24 via the link mechanism 40. The rotation of the swash plate 24 is converted into a reciprocating motion of the piston 29 by the pair of piston shoes 30, 30, and the piston 29 reciprocates in the cylinder bore 3. By the reciprocating motion of the piston 29, the refrigerant in the suction chamber 7 is sucked into the cylinder bore 3 through the suction hole 11 of the valve plate 9 and then compressed, and is discharged to the discharge chamber 8 through the discharge hole 12 of the valve plate 9. .

"Control of variable capacity"
In this variable capacity compressor, in order to change the inclination angle of the swash plate 24 by adjusting the differential pressure (pressure balance) between the crank chamber pressure Pc on the rear surface side of the piston 29 and the suction chamber pressure Ps on the front surface side of the piston 29. A pressure control mechanism is provided. The pressure control mechanism includes an extraction passage (not shown) that connects the crank chamber 5 and the suction chamber 7, an air supply passage (not shown) that connects the crank chamber 5 and the discharge chamber 8, and the air supply passage. And a control valve 33 which is provided in the middle of the air supply passage and controls opening and closing of the air supply passage.

  When the air supply passage is opened by the control valve 33, the refrigerant in the discharge chamber 8 flows into the crank chamber 5 through the air supply passage and the crank chamber pressure Pc rises, whereby the pressure balance between the crank chamber pressure Pc and the suction chamber pressure Ps. As a result, the inclination angle of the swash plate 24 is reduced. As a result, the piston stroke is reduced and the discharge amount is reduced. On the other hand, when the supply passage is closed by the control valve 33, the crank chamber pressure Pc decreases due to the refrigerant in the crank chamber 5 gradually passing through the bleed passage into the suction chamber 7, thereby reducing the crank chamber pressure Pc and the suction chamber. The inclination angle of the swash plate 24 increases due to the pressure balance with the pressure Ps. As a result, the piston stroke increases and the discharge amount increases. The inclination angle of the swash plate 24 decreases when the sleeve 22 moves closer to the cylinder block 2, while the inclination angle of the swash plate 24 decreases when the sleeve 22 moves away from the cylinder block 2. The angle increases.

"Linking mechanism"
Next, the link mechanism 40 will be described.

  As shown in FIGS. 3 to 7, the link mechanism 40 includes a pair of arms 41, 41 that protrude from the rotor 21 toward the hub 25 and face each other in the rotational torque transmission direction, and from the hub 25 toward the rotor 21. And a pair of arms 41 and 41 of the rotor 21 and a link 45 that overlaps the arm 43 of the hub 25 in the rotational torque transmission direction.

  One end 45a of the link 45 is slidably inserted between the opposed surfaces of the pair of arms 41, 41 of the rotor 21, and the arm 43 of the hub 25 slides in the slit 45s of the other end 45b of the link 45. It is inserted freely.

  The link 45 and the arm 43 of the hub 25 are rotatably connected to each other by a connecting pin 47 that is formed separately from the link 45 and extends in the rotational torque transmission direction. The connecting pin 47 is rotatably inserted into the through hole 43t of the arm 43 of the hub 25, and is press-fitted into the through hole 45t of the other end 45b of the link 45, or vice versa. While being press-fitted into the through hole 43t of 43, it is rotatably inserted into the through hole 45t of the other end 45b of the link 45.

  On the other hand, the link 45 and the pair of arms 41 and 41 of the rotor are in sliding contact with each other so as to be rotatable without using a separate connecting pin. Specifically, the distal end portions of the pair of arms 41 of the rotor 21 are configured as a hinge shaft portion 48 formed in a convex arc shape in cross section, while the one end portion 45a of the link 45 is uneven with the hinge shaft portion 48. A concave arc-shaped bearing portion 49 that is engaged and slidably engaged is formed, and the link 45 and the arm 41 are slidably contacted with each other by the engagement between the hinge shaft portion 48 and the bearing portion 49. Will be. The bearing portion 49 does not have a closed cross-sectional structure that surrounds the entire outer periphery of the hinge shaft portion 48. However, since the compression reaction force Fp is applied between the rotor 21 and the swash plate 24, the bearing portion 49 and the hinge shaft The engagement with the part 48 is not disengaged.

"effect"
With the above configuration, this embodiment has the following effects.

  First, an arm 41 projecting from the rotor 21 as the “rotating member” toward the swash plate 24 as the “tilting member”, an arm 43 projecting from the hub 25 toward the rotor 21, The link mechanism 40 includes the arm 41 and the arm 43 and a link 45 overlapping in the rotational torque transmission direction. The link mechanism 40 includes one of the arm 41 of the rotating member or the arm 43 of the tilting member (the arm 43 in this example) and the link 45. Are connected to each other in a rotatable manner around a connecting pin 47 formed separately from the above, and the other of the arm 41 of the rotating member or the arm 43 of the tilting member (in this example, the arm 41) and the link 45 are It is characterized in that it is in sliding contact with a hinge shaft portion 48 formed integrally with any one of them in a freely rotatable manner.

  For this reason, one connecting pin, which is conventionally required, is reduced by one, and the press-fitting site between the connecting pin and the press-fitting hole, which has been conventionally two, is reduced by one. Therefore, the manufacturing cost of the link mechanism 40 and the variable capacity compressor is reduced.

  Also, with this structure, in the assembly process of the link mechanism, the link 45 is attached to the arm 33 of the tilting member 24 mounted on the drive shaft 10 with the connecting pin 47, and then the rotary member 21 is press-fitted and fixed to the drive shaft 10. It ends only by combining from the axial direction. Therefore, the assembly of the link mechanism is also simplified.

  Secondly, in this embodiment, the arm 41 of the rotating member and the link 45 are in sliding contact so as to be rotatable about the hinge shaft portion 48. Therefore, since the connecting pin is eliminated at the connecting portion between the arm 41 and the link 45 of the rotating member whose operating angle is smaller than that of the connecting portion between the arm 43 and the link 45 of the tilting member, it is preferable that the play does not easily occur.

  Next, another embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the structure same as 1st Embodiment, and description of a structure and its effect is abbreviate | omitted.

  Second Embodiment: Next, a second embodiment of the present invention will be described with reference to FIGS.

  Although the hinge shaft portion 48 of the first embodiment described above is integrally formed with the arm 41 of the rotating member, the hinge shaft portion 48 of this second embodiment is integrally formed with the link 45. In addition, the bearing portion 49 of the first embodiment has a substantially crescent-shaped cross section protruding from the link 45, but in the second embodiment, the bearing portion 49 is recessed in the U-shaped cross section of the arm 41 of the rotating member. It is a hole structure. Further, the hinge shaft portion 48 of the first embodiment is cylindrical, but the hinge shaft portion 48 of the second embodiment is hemispherical.

  According to the second embodiment, as in the first embodiment, the number of connecting pins that were conventionally required is reduced by one, and the press-fitting site between the connecting pins and the press-fitting holes that were conventionally two is reduced by one. . Therefore, the manufacturing cost of the link mechanism 40 and the variable capacity compressor is reduced.

  Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIGS.

  In the first and second embodiments described above, the arm 43 of the tilting member and the link 45 are rotatably connected around a separate connecting pin 47, while the arm 41 of the rotating member and the link 45 are hinge shaft portions. In this third embodiment, the arm 43 of the tilting member and the link 45 are slidably in contact with each other about the hinge shaft 48, and the arm of the rotating member. 41 and the link 45 are in sliding contact so as to be rotatable about the other hinge shaft portion 48. That is, the structure of the third embodiment is a structure in which both of the connecting pins are abolished.

  In the first and second embodiments described above, the slit 45s is provided at the other end 45b of the link 45, and the arm 45 of the tilting member is sandwiched in the slit 45s. This third embodiment Then, there is no slit in the other end 45b of the link 45, and the other end 45b of the link 45 is sandwiched between the pair of arms 43 and 43 of the tilting member.

  According to the third embodiment, two connecting pins, which are conventionally required, are eliminated, and two press-fitting sites between the connecting pins and the press-fitting holes that are conventionally required are eliminated. Therefore, the manufacturing cost is further reduced as compared with the first and second embodiments.

  In short, according to the present invention, at least one of the arm of the rotating member or the arm of the tilting member and the link are slidably contacted so as to be rotatable around a hinge shaft portion formed integrally with any one of them. It is characterized by being. Therefore, it is possible to reduce the connecting pins that have been used conventionally, thereby reducing the manufacturing cost.

  Note that the present invention is not limited to the embodiment described above.

  For example, in the first and second embodiments described above, the arm 43 of the tilting member and the link 45 are connected rotatably around a separate connecting pin 47, and the arm 41 of the rotating member and the link 45 are integrated with the hinge shaft portion. In contrast, in the present invention, on the contrary, the arm of the tilting member and the link are slidably contacted with each other about the hinge shaft as a unit and the arm of the rotating member. The link may be rotatably connected around a separate connecting pin.

  In the second and third embodiments described above, the sliding contact surface 49a of the bearing portion 49 is formed in a concave semicircular cross section along the sliding contact surface 48a of the hinge shaft portion 48 as shown in FIGS. However, in the present invention, the sliding contact surface 49a of the bearing portion 49 may be formed without following the cross-sectional shape of the hinge shaft portion 48 as shown in FIG.

  According to the second and third embodiments described above, the bearing portion 49 has the walls 51 along both ends of the hinge shaft portion 48. In the present invention, for example, as shown in FIG. A structure without walls along both ends may be used, or the structure of the hinge shaft part and the bearing part may be appropriately changed.

  In the first to third embodiments described above, the swash plate 24 is configured by combining the swash plate main body 26 and the hub 25 which are separate members. However, in the present invention, for example, as shown in FIG. The plate 24 may be used. In the first to third embodiments described above, the swash plate 24 is attached to the drive shaft 10 via the sleeve 22. However, in the present invention, for example, as shown in FIG. 10 may be a sleeveless structure.

  In the above-described embodiment, a swash type swash plate is used. However, a wobble type swash plate may be used in the present invention, and the present invention may be implemented in various other modes as long as it belongs to the technical scope of the present invention. Can do.

FIG. 1 is a cross-sectional view of a variable displacement compressor according to a first embodiment of the present invention in a full stroke state. FIG. 2 is a sectional view of the variable capacity compressor in a destroke state. FIG. 3 is a perspective view of a link mechanism of the variable capacity compressor. 4 is an exploded perspective view of the link mechanism of FIG. FIG. 5 is a view as seen from the direction V in FIG. 6 is a view as seen from the VI direction in FIG. 7 is a view as seen from the direction VII in FIG. FIG. 8 is a cross-sectional view of the variable displacement compressor according to the second embodiment of the present invention in a full stroke state. FIG. 9 is a sectional view of the variable capacity compressor in a death stroke state. FIG. 10 is a perspective view of a link mechanism of the variable capacity compressor. 11 is a view as seen from the XI direction in FIG. FIG. 12 is an enlarged cross-sectional view showing another embodiment of the figure link mechanism. FIG. 13: is sectional drawing of the full stroke state of the variable capacity compressor concerning 3rd Embodiment of this invention. FIG. 14 is a sectional view of the variable capacity compressor in a death stroke state. 15 is a cross-sectional view taken along line X-XV in FIG. FIG. 16 is an exploded side view of the link mechanism of the variable capacity compressor. FIG. 17 is an exploded top view of the link mechanism of the variable capacity compressor. FIG. 18 is an exploded side view of a link mechanism according to another embodiment of the present invention. FIG. 19 is a cross-sectional view of a link mechanism according to another embodiment of the present invention. FIG. 20 is a cross-sectional view of a main part of a variable capacity compressor according to another embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Variable capacity compressor 10 ... Drive shaft 21 ... Rotor (rotating member)
24 ... Swash plate (tilting member)
29 ... Piston 40 ... Link mechanism 41, 41 ... Arm (arm of rotating member)
43, 43 ... Arm (arm of tilting member)
45 ... Link 47 ... Connecting pin 48 ... Hinge shaft

Claims (6)

A rotating member (21) fixed to the drive shaft (10) and rotating integrally therewith, and a tilt attached to the drive shaft (10) so as to be slidable and attached to the drive shaft (10) so as to be tiltable. A link mechanism (40) for connecting the member (24) to transmit the rotational torque of the rotating member (21) to the tilting member (24) while allowing the tilting member (24) to tilt;
An arm (41) protruding from the rotating member (21) toward the tilting member (24), and an arm (43) protruding from the tilting member (24) toward the rotating member (21) And a link (45) that overlaps with the arm (41) of the rotating member and the arm (43) of the tilting member in the rotating torque transmission direction and transmits the rotating torque of the rotating member (21) to the tilting member (24). ) And
One of the arm (41) of the rotating member or the arm (43) of the tilting member and the link (45) are rotatably connected around a connecting pin (47) formed separately from these,
The other of the arm (41) of the rotating member or the arm (43) of the tilting member and the link (45) are slidably rotatable around a hinge shaft portion (48) formed integrally with either of them. A link mechanism (40) characterized by being in dynamic contact. A link mechanism (40) according to claim 1,
The arm (43) of the tilting member and the link (45) are rotatably connected around a connecting pin (47) formed separately from these,
The link characterized in that the arm (41) of the rotating member and the link (45) are in sliding contact with each other so as to be rotatable about a hinge shaft portion (48) formed integrally with any one of them. Mechanism (40). A rotating member (21) fixed to the drive shaft (10) and rotating integrally therewith, and a tilt attached to the drive shaft (10) so as to be slidable and attached to the drive shaft (10) so as to be tiltable. A link mechanism (40) for connecting the member (24) to transmit the rotational torque of the rotating member (21) to the tilting member (24) while allowing the tilting member (24) to tilt;
An arm (41) protruding from the rotating member (21) toward the tilting member (24), and an arm (43) protruding from the tilting member (24) toward the rotating member (21) And a link that overlaps with the arm (41) of the rotating member and the arm (43) of the tilting member in the rotational torque transmitting direction and transmits the rotational torque of the rotating member (21) to the tilt angle varying member (24) ( 45), and
The arm (41) of the rotating member and the link (45) are slidably contacted so as to be rotatable around a hinge shaft portion (48) formed integrally with any one of these,
The link (45) is characterized in that the arm (43) of the tilting member and the link (45) are in sliding contact with each other so as to be rotatable about a hinge shaft portion (48) formed integrally therewith. Mechanism (40). A drive shaft (10), a rotating member (21) fixed to the drive shaft (10) and rotating integrally therewith, and slidably attached to the drive shaft (10) and with respect to the drive shaft (10) The tilting member (24) attached in a tiltable manner, the rotating member (21) and the tilting member (24) are connected to allow the tilting member (24) to tilt while allowing the rotating member (21) to be tilted. Link mechanism (40) (40B) (40C) that transmits the rotational torque of the tilting member (24), and a piston (29) that reciprocates in the cylinder bore (3) as the tilting member (24) rotates. And a variable capacity compressor (1) comprising:
The link mechanism (40)
An arm (41) protruding from the rotating member (21) toward the tilting member (24), and an arm (43) protruding from the tilting member (24) toward the rotating member (21) And a link (45) that overlaps with the arm (41) of the rotating member and the arm (43) of the tilting member in the rotating torque transmission direction and transmits the rotating torque of the rotating member (21) to the tilting member (24). ) And
One of the arm (41) of the rotating member or the arm (43) of the tilting member and the link (45) are rotatably connected around a connecting pin (47) formed separately from these,
The other of the arm (41) of the rotating member or the arm (43) of the tilting member and the link (45) are slidably rotatable around a hinge shaft portion (48) formed integrally with either of them. A variable capacity compressor characterized by dynamic contact. The variable capacity compressor according to claim 4,
The arm (43) of the tilting member and the link (45) are rotatably connected around a connecting pin (47) formed separately from these,
The variable member characterized in that the arm (41) of the rotating member and the link (45) are in sliding contact with each other so as to be rotatable about a hinge shaft portion (48) formed integrally with any one of them. Capacity compressor. A drive shaft (10), a rotating member (21) fixed to the drive shaft (10) and rotating integrally therewith, and slidably attached to the drive shaft (10) and with respect to the drive shaft (10) The tilting member (24) attached in a tiltable manner, the rotating member (21) and the tilting member (24) are connected to allow the tilting member (24) to tilt while allowing the rotating member (21) to be tilted. Link mechanism (40) (40B) (40C) that transmits the rotational torque of the tilting member (24), and a piston (29) that reciprocates in the cylinder bore (3) as the tilting member (24) rotates. And a variable capacity compressor (1) comprising:
The link mechanism (40)
An arm (41) protruding from the rotating member (21) toward the tilting member (24), and an arm (43) protruding from the tilting member (24) toward the rotating member (21) And a link (45) that overlaps with the arm (41) of the rotating member and the arm (43) of the tilting member in the rotating torque transmission direction and transmits the rotating torque of the rotating member (21) to the tilting member (24). ) And
The arm (41) of the rotating member and the link (45) are slidably contacted so as to be rotatable around a hinge shaft portion (48) formed integrally with any one of these,
The arm (43) of the tilting member and the link (45) are slidably contacted so as to be rotatable about a hinge shaft portion (48) formed integrally with any one of them. Capacity compressor (1).

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