WO2021152700A1 - Rouleau de résine - Google Patents

Rouleau de résine Download PDF

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Publication number
WO2021152700A1
WO2021152700A1 PCT/JP2020/003010 JP2020003010W WO2021152700A1 WO 2021152700 A1 WO2021152700 A1 WO 2021152700A1 JP 2020003010 W JP2020003010 W JP 2020003010W WO 2021152700 A1 WO2021152700 A1 WO 2021152700A1
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WO
WIPO (PCT)
Prior art keywords
tire
resin roller
protrusions
projecting portions
boss
Prior art date
Application number
PCT/JP2020/003010
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English (en)
Japanese (ja)
Inventor
勇太郎 塙
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2020553662A priority Critical patent/JPWO2021152700A1/ja
Priority to PCT/JP2020/003010 priority patent/WO2021152700A1/fr
Publication of WO2021152700A1 publication Critical patent/WO2021152700A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor

Definitions

  • This disclosure relates to resin rollers.
  • the conventional resin roller is provided on the bearing through which the shaft is inserted, the inner layer body (also the core body portion) made of resin provided on the outer periphery of the bearing, and the outer peripheral portion of the inner layer body, and is provided on the outer peripheral portion of the inner layer body, rather than the inner layer body. It is composed of an annular tire made of a resin having a low hardness to prevent damage and wear of a guide rail that guides a resin roller (see, for example, Patent Document 1).
  • the tire portion of the resin roller described in Patent Document 1 is repeatedly elastically deformed during rolling to generate heat.
  • the thermal conductivity of the core portion that restrains the tire portion is low. Therefore, at room temperature, the amount of heat that stays inside the tire portion and is stored is larger than the amount of heat that the tire portion and the core body portion dissipate to the atmosphere. As a result, the temperature of the resin roller rises.
  • An object of the present disclosure is to provide a resin roller capable of suppressing a temperature rise during rolling.
  • the resin roller according to the present disclosure includes a bearing portion that rotatably supports the shaft, a tire portion that is formed in an annular shape and whose axis is aligned with the bearing portion on the outer peripheral side of the bearing portion, and the bearing portion and the above.
  • a boss portion provided between the tire portion and gripping the bearing portion and in contact with the inner peripheral surface of the tire portion, and a boss portion provided in the boss portion and in contact with one side surface and the other side surface of the tire portion, respectively. It was provided with a pair of flange portions, a side surface of the pair of collar portions not in contact with the tire portion, and one or more projecting portions protruding from the side surface of the boss portion in the axial direction of the bearing portion.
  • FIG. 3 is a plan view and a cross-sectional view taken along the line AA of the resin roller according to the first embodiment.
  • FIG. 5 is a cross-sectional view taken along the line AA of the first comparative example of the tire portion of the resin roller according to the first embodiment.
  • FIG. 5 is a cross-sectional view taken along the line AA of the second comparative example of the tire portion of the resin roller according to the first embodiment. It is a top view of the 1st modification of the plurality of protrusions of the resin roller in Embodiment 1.
  • FIG. It is a top view of the 2nd modification of the plurality of protrusions of the resin roller in Embodiment 1.
  • FIG. 1 It is a plan view and the cross-sectional view of BB of the 3rd modification of the plurality of protrusions of the resin roller in Embodiment 1.
  • FIG. 2 It is a top view of the protrusion part of the resin roller in Embodiment 2.
  • FIG. 2 It is a top view of the 2nd modification of the plurality of protrusions of the resin roller in Embodiment 2.
  • FIG. 1 is a plan view and a cross-sectional view taken along the line AA of the resin roller according to the first embodiment.
  • the resin roller of FIG. 1 is used under conditions such that it rotates at high speed while being loaded with a high load.
  • the resin rollers of the present disclosure are used in carts such as steps of passenger conveyors such as escalators, elevators, and the like.
  • the resin roller 10 includes a bearing portion 1, a tire portion 2, and a core body portion 3.
  • the bearing portion 1 is connected to a shaft provided on a cart (not shown).
  • the bearing portion 1 rotatably supports the shaft about the rotating shaft 1a.
  • the bearing portion 1 may be configured by using a ball bearing.
  • the bearing portion 1 is composed of an inner ring, an outer ring, and a rolling element.
  • the tire portion 2 is made of synthetic resin.
  • the tire portion 2 is made of a synthetic resin having a type A durometer hardness of about A60 to A90 conforming to JIS-K-6253.
  • the tire portion 2 is formed of a thermoplastic polyurethane elastomer, a thermoplastic polyolefin elastomer, a thermoplastic polyester elastomer, a thermoplastic polyamide elastomer, or the like.
  • the tire portion 2 has sufficient wear resistance and an appropriate elastic modulus under the conditions of use of the resin roller 10.
  • the tire portion 2 is formed in an annular shape.
  • the tire portion 2 has a cross-sectional shape as shown in the AA cross-sectional view.
  • the tire portion 2 is an annular body obtained by half-rotating the cross-sectional shape around the rotation axis 1a.
  • the tire portion 2 is provided on the outer peripheral side of the bearing portion 1.
  • the tire portion 2 is provided so as to align the shaft with the bearing portion 1.
  • the tire portion 2 is integrally formed of synthetic resin.
  • the surface along the outer peripheral side of the core body portion 3 is set as the boundary curved surface 2s, and the inner peripheral side of the boundary curved surface 2s is bonded to the tire.
  • the outer peripheral side of the portion 2a and the boundary curved surface 2s is the tire bulging portion 2b.
  • the boundary curved surface 2s is a side surface of a cylinder having a radius L1 centered on the rotation axis 1a.
  • the boundary curved surface 2s divides the tire portion 2 into a tire bonding portion 2a and a tire bulging portion 2b.
  • the tire bonding portion 2a is a region in the tire portion 2 where the distance from the rotating shaft 1a is L1 or less.
  • the tire bonding portion 2a is an annular body formed by half-rotating the rectangle shown in the AA cross-sectional view about the rotation shaft 1a.
  • the tire bulging portion 2b is a region in the tire portion 2 where the distance from the rotating shaft 1a is L1 or more.
  • the tire bulging portion 2b has a length L2 and a length L3.
  • the length L2 is defined as the maximum length of the tire bulging portion 2b in the rotation axis 1a direction.
  • the length L3 is defined as the length of the boundary curved surface 2s in the tire portion 2 in the direction of the rotation axis 1a. In the tire bulging portion 2b, the length L2 does not exceed the length L3.
  • the core body portion 3 is formed of a synthetic resin having a higher elastic modulus than the material of the tire portion 2.
  • the core portion 3 is formed of a synthetic resin classified as a hard thermoplastic elastomer having a type D durometer hardness of about D50 to D70 according to JIS-K-6253.
  • the core portion 3 is formed of a thermoplastic polyurethane elastomer, a thermoplastic polyolefin elastomer, a thermoplastic polyester elastomer, a thermoplastic polyamide elastomer, or the like.
  • the core body portion 3 may be formed of a synthetic resin classified into engineering plastics such as a polyamide resin and a polybutylene terephthalate resin.
  • the core body portion 3 may be formed of a material having an improved elastic modulus by blending glass fiber or the like with a synthetic resin classified as a thermoplastic elastomer or an engineering plastic. As a result, the core body portion 3 has sufficient rigidity and durability under the conditions of use of the resin roller 10.
  • the core body portion 3 includes a boss portion 4, a flange portion 5a, a collar portion 5b, a plurality of projecting portions 11a, and a plurality of projecting portions 11b.
  • the boss portion 4, the flange portion 5a, the flange portion 5b, the plurality of projecting portions 11a, and the plurality of projecting portions 11b are manufactured by integral molding.
  • the boss portion 4, the flange portion 5a, the flange portion 5b, the plurality of protrusions 11a, and the plurality of protrusions 11b are manufactured by injection molding.
  • the boss portion 4 is provided on the outer peripheral side of the bearing portion 1.
  • the boss portion 4 is provided so as to embed the outer ring of the bearing portion 1 over one circumference.
  • the boss portion 4 grips and fixes the bearing portion 1.
  • the outer peripheral surface of the boss portion 4 is in contact with the inner peripheral surface of the tire adhesive portion 2a without a gap over one circumference.
  • the collar portion 5a is an annular body whose shaft is aligned with the bearing portion 1.
  • the collar portion 5a is an annular body formed by half-rotating the rectangle shown in the AA cross-sectional view about the rotation axis 1a.
  • the outer peripheral radius of the flange portion 5a is a distance L1.
  • the inner peripheral radius of the collar portion 5a is equal to the outer peripheral radius of the boss portion 4.
  • the inner peripheral surface of the flange portion 5a is connected to one side of the outer peripheral surface of the boss portion 4.
  • the outer surface of the collar portion 5a exists in the same plane as the side surface on one side of the boss portion 4.
  • the inner side surface of the flange portion 5a is in contact with the side surface on one side of the tire bonding portion 2a without a gap over one circumference.
  • the collar portion 5b is an annular body whose shaft is aligned with the bearing portion 1.
  • the collar portion 5b is an annular body formed by half-rotating the rectangle shown in the AA cross-sectional view about the rotation axis 1a.
  • the outer peripheral radius of the flange portion 5b is a distance L1.
  • the inner peripheral radius of the flange portion 5b is equal to the outer peripheral radius of the boss portion 4.
  • the inner peripheral surface of the flange portion 5b is connected to the other side of the outer peripheral surface of the boss portion 4.
  • the outer surface of the flange portion 5b exists in the same plane as the other side surface of the boss portion 4.
  • the inner side surface of the flange portion 5b is in contact with the other side surface of the tire bonding portion 2a without a gap over one circumference.
  • the plurality of projecting portions 11a are provided from one side surface of the boss portion 4 to the outer surface of the flange portion 5a.
  • the plurality of projecting portions 11a are provided at eight locations on one side of the boss portion 4.
  • the plurality of projecting portions 11a are provided radially around the rotation shaft 1a.
  • the plurality of projecting portions 11a are provided as projecting bodies so as to project from the boss portion 4 and the flange portion 5b in a rectangular parallelepiped shape.
  • the plurality of protruding portions 11a have a convex shape together with the flange portion 5a.
  • the plurality of projecting portions 11b are provided from the other side surface of the boss portion 4 to the outer surface of the flange portion 5b.
  • the plurality of projecting portions 11b are provided at eight locations on the other side of the boss portion 4.
  • the plurality of projecting portions 11b are provided radially around the rotation shaft 1a.
  • the plurality of projecting portions 11b are provided as projecting bodies so as to project from the boss portion 4 and the flange portion 5b in a rectangular parallelepiped shape.
  • the plurality of protruding portions 11b have a convex shape together with the flange portion 5b.
  • the resin roller 10 is connected to the shaft of the passenger conveyor. When the passenger conveyor moves, the resin roller 10 rolls with a load applied.
  • the position of the load applied to the tire portion 2 moves so as to orbit the tire portion 2. Focus on a certain part of the tire part 2. At that site, compression strain is repeatedly generated and released. The temperature of the site rises due to the repeated release of compressive strain. This temperature rise occurs over the entire circumference of the tire portion 2. Therefore, the temperature of the entire tire portion 2 rises.
  • the heat exchange raises the temperature of the core body 3.
  • the core body portion 3 dissipates heat to the surrounding outside air.
  • the temperature of the resin roller 10 is the amount of heat generated in the tire portion 2, the amount of heat exchanged between the tire portion 2 and the core body portion 3, the amount of heat conducted between the tire portion 2 and the core body portion 3, and the tire.
  • the portion 2 and the core portion 3 are affected by the amount of heat dissipated into the atmosphere.
  • the tire adhesive portion 2a is constrained on one side by the flange portion 5a.
  • the other side surface of the tire bonding portion 2a is restrained by the flange portion 5b. That is, the tire bonding portion 2a is constrained on both side surfaces by the collar portion 5a and the collar portion 5b, which are a pair of collar portions having sufficient rigidity.
  • the elastic deformation of the tire adhesive portion 2a is suppressed.
  • the amount of heat generated in the tire portion 2 can be suppressed.
  • the core body portion 3 of the resin roller 10 is provided with a plurality of projecting portions 11a and a plurality of projecting portions 11b on the side surface thereof.
  • the surface area of the resin roller 10 that comes into contact with the outside air increases.
  • the amount of heat dissipated to the atmosphere of the core body portion 3 increases.
  • the temperature rise when the resin roller 10 rolls can be suppressed. It is sufficient that one or more projecting portions are provided on at least one side surface of the core body portion 3.
  • boss portion 4 the boss portion 4, the flange portion 5a, the collar portion 5b, the plurality of projecting portions 11a, and the plurality of projecting portions 11b are integrally molded with a synthetic resin. This makes it possible to simplify the manufacturing process of the core body portion 3.
  • the boss portion 4, the flange portion 5a, the flange portion 5b, the plurality of projecting portions 11a, and the plurality of projecting portions 11b are formed of a synthetic resin having a higher elastic modulus than the tire portion 2. As a result, deformation of the core body portion 3 can be suppressed when a load is applied to the resin roller 10.
  • the core body portion 3 is provided with one or more protruding portions 11a on the side surface.
  • the core body portion 3 includes rectangular parallelepiped-shaped protrusions provided radially around a rotation axis. As a result, the thickness of the collar portion 5a and the collar portion 5b in the rotation axis direction can be made thinner while the collar portion 5a and the collar portion 5b maintain sufficient rigidity. Therefore, the heat transfer ability between the collar portion 5a and the collar portion 5b is improved. As a result, sufficient rigidity and good heat release can be achieved at both the flange portion 5a and the collar portion 5b.
  • the tire portion 2 is composed of a tire adhesive portion 2a and a tire bulging portion 2b.
  • the tire bonding portion 2a is a region of the tire portion 2 whose distance from the rotating shaft 1a is less than or equal to the distance L1.
  • the distance L1 is equal to the outer peripheral radius of the collar portion 5a or the collar portion 5b. Therefore, all the surfaces of the tire bonding portion 2a are in contact with either the boss portion 4 or the flange portion 5a or the collar portion 5b or the tire bulging portion 2b. Therefore, even if the tire portion 2 is compressed and deformed, the ground contact surface of the resin roller 10 becomes the tire bulging portion 2b. As a result, the vibration and noise generated when the resin roller 10 rolls can be reduced.
  • FIG. 2 is a cross-sectional view taken along the line AA of the first comparative example of the tire portion of the resin roller according to the first embodiment.
  • the tire adhesive portion 2a has a surface that is not in contact with any of the boss portion 4, the collar portion 5a, the collar portion 5b, and the tire bulging portion 2b. That is, the corner portions on the outer peripheral side and the other side of the tire bonding portion 2a are not in contact with the collar portion 5a and the collar portion 5b.
  • the tire bulging portion 2b is greatly deformed in the radial direction, and the tire adhesive portion 2a is deformed until it comes into contact with the collar portion 5a or the collar portion 5b. Therefore, the collar portion 5a and the collar portion 5b can come into contact with the rail, the ground, or the like. In this case, the vibration and noise when the resin roller 10 rolls become large.
  • the maximum length L2 in the direction of the rotating shaft 1a does not exceed the length L3 in the direction of the rotating shaft 1a of the boundary curved surface 2s. As a result, the life of the tire portion 2 can be extended.
  • FIG. 3 is a cross-sectional view taken along the line AA of the second comparative example of the tire portion of the resin roller according to the first embodiment.
  • the maximum length L2 in the direction of the rotating shaft 1a exceeds the length L3.
  • the surface 6 is an adhesive surface between the tire bulging portion 2b and the flange portion 5a.
  • the surface 6 is also an adhesive surface between the tire bulging portion 2b and the flange portion 5b.
  • the length L2 is shorter than the length L3 in the tire bulging portion 2b. As a result, the life of the tire portion 2 can be extended.
  • FIG. 4 is a plan view of a first modification of the plurality of protrusions of the resin roller according to the first embodiment.
  • the figure on the left is a plan view of one side surface of the resin roller 10.
  • the figure on the right is a plan view of the side surface of the resin roller 10 on the other side.
  • the core body portion 3 of the resin roller 10 includes a plurality of projecting portions 12a and a plurality of projecting portions 12b.
  • the plurality of projecting portions 12a are provided from one side surface of the boss portion 4 to the outer surface of the flange portion 5a.
  • the plurality of projecting portions 12a are provided radially around the rotation shaft 1a.
  • the plurality of protrusions 12a have a rectangular parallelepiped shape.
  • the plurality of projecting portions 12a are provided at four locations on one side of the boss portion 4.
  • the plurality of projecting portions 12b are provided from the other side surface of the boss portion 4 to the outer surface of the flange portion 5b.
  • the plurality of projecting portions 12b are provided radially around the rotation shaft 1a.
  • the plurality of protrusions 12b have a rectangular parallelepiped shape.
  • the plurality of projecting portions 12b are provided at four locations on the other side of the boss portion 4.
  • the number of the plurality of projecting portions 12a is different from that of the plurality of projecting portions 11a of the first embodiment.
  • the number of the plurality of protrusions 12b is different from that of the plurality of protrusions 11b of the first embodiment.
  • the plurality of protrusions can increase the amount of heat dissipated to the atmosphere by the core body 3 regardless of the number of protrusions provided.
  • FIG. 5 is a plan view of a second modification of the plurality of protrusions of the resin roller according to the first embodiment.
  • the figure on the left is a plan view of one side surface of the resin roller 10.
  • the figure on the right is a plan view of the side surface of the resin roller 10 on the other side.
  • the core body portion 3 of the resin roller 10 includes a plurality of projecting portions 13a and a plurality of projecting portions 13b.
  • the plurality of protruding portions 13a are provided from one side surface of the boss portion 4 to the outer surface of the flange portion 5a.
  • the plurality of protruding portions 13a are provided at eight locations on one side of the boss portion 4.
  • the plurality of projecting portions 13a are provided radially around the rotation shaft 1a.
  • the widths of the plurality of protrusions 13a in the direction perpendicular to the radial direction and in the direction perpendicular to the rotation axis direction are not constant. The width gradually decreases from the inner diameter direction to the outer diameter direction of the core body portion 3.
  • the plurality of projecting portions 13b are provided from the other side surface of the boss portion 4 to the outer surface of the flange portion 5b.
  • the plurality of projecting portions 13b are provided at eight locations on the other side of the boss portion 4.
  • the plurality of projecting portions 13b are provided radially around the rotation shaft 1a.
  • the widths of the plurality of protrusions 13b in the direction perpendicular to the radial direction and in the direction perpendicular to the rotation axis direction are not constant. The width gradually decreases from the inner diameter direction to the outer diameter direction of the core body portion 3.
  • the shape of the protrusions 13a provided is different from that of the plurality of protrusions 11a shown in FIG. 1 of the first embodiment.
  • the shape of the protrusions 13b provided is different from that of the plurality of protrusions 11b of the first embodiment.
  • the plurality of projecting portions can increase the amount of heat dissipated to the atmosphere by the core body portion 3 regardless of its radial shape.
  • FIG. 6 is a plan view and a sectional view of a third modification of the plurality of protrusions of the resin roller according to the first embodiment.
  • the core body portion 3 of the resin roller 10 includes a plurality of projecting portions 14a and a plurality of projecting portions 14b.
  • the plurality of projecting portions 14a are provided from one side surface of the boss portion 4 to the outer surface of the flange portion 5a.
  • the plurality of projecting portions 14a are provided at eight locations on one side of the boss portion 4.
  • the plurality of projecting portions 14a are provided radially around the rotation shaft 1a. In the plurality of protrusions 14a, the lengths in the direction of the rotation shaft 1a are non-uniform. As shown in the BB cross-sectional view, each of the projecting portions 14a has a plurality of steps in the radial direction of the core body portion 3.
  • the plurality of projecting portions 14b are provided from the other side surface of the boss portion 4 to the outer surface of the flange portion 5b.
  • the plurality of projecting portions 14b are provided at eight locations on the other side of the boss portion 4.
  • the plurality of projecting portions 14b are provided radially around the rotation shaft 1a. In the plurality of protrusions 14b, the lengths in the direction of the rotation shaft 1a are non-uniform. As shown in the BB cross-sectional view, each of the projecting portions 14b has a plurality of steps in the radial direction of the core body portion 3.
  • the plurality of projecting portions 14a differ in the rotational axis direction lengths of the plurality of projecting portions provided as compared with the plurality of projecting portions 11a shown in FIG. 1 of the first embodiment. ing.
  • the plurality of protrusions 14b are different in length in the rotation axis direction of the protrusions provided as compared with the plurality of protrusions 11b of the first embodiment.
  • the plurality of projecting portions can increase the amount of heat dissipated to the atmosphere by the core body portion 3 regardless of the length in the rotation axis direction.
  • FIG. 7 is a plan view of the protruding portion of the resin roller according to the second embodiment.
  • the figure on the left is a plan view of one side surface of the resin roller 10.
  • the figure on the right is a plan view of the side surface of the resin roller 10 on the other side.
  • the same or corresponding parts as those of the first embodiment are designated by the same reference numerals. The explanation of the relevant part is omitted.
  • the core body portion 3 of the resin roller 10 includes a plurality of projecting portions 15a and a plurality of projecting portions 15b.
  • the plurality of projecting portions 15a are provided on the outer surface of the flange portion 5a.
  • the plurality of projecting portions 15a are provided concentrically around the rotation shaft 1a.
  • the plurality of projecting portions 15b are provided on the outer surface of the flange portion 5b.
  • the plurality of projecting portions 15b are provided concentrically around the rotation shaft 1a.
  • the shapes of the plurality of protrusions 15a provided are different from those of the plurality of protrusions 11a in the first embodiment.
  • the shape of the plurality of protrusions 15b is different from that of the plurality of protrusions 11b in the first embodiment. Regardless of the shape, the plurality of projecting portions can increase the amount of heat dissipated by the core body portion 3 to the atmosphere.
  • the resin roller 10 has one or more protrusions 15a and one or more protrusions 15b arranged concentrically around the rotation shaft 1a on its side surface. And.
  • the airflow in the vicinity of the resin roller 10 becomes turbulent.
  • turbulent flow has a higher heat transfer coefficient at the phase boundary than laminar flow.
  • the amount of heat dissipated to the atmosphere by the core body 3 increases due to the turbulence of the airflow in the vicinity of the resin roller 10. As a result, it is possible to suppress an increase in temperature when the resin roller 10 rolls.
  • FIG. 8 is a plan view of a first modification of the plurality of protrusions of the resin roller according to the second embodiment.
  • the figure on the left is a plan view of one side surface of the resin roller 10.
  • the figure on the right is a plan view of the side surface of the resin roller 10 on the other side.
  • the core body portion 3 of the resin roller 10 includes a plurality of projecting portions 16a, a plurality of projecting portions 16b, a projecting portion 17a, and a projecting portion 17b.
  • the plurality of projecting portions 16a are provided from one side surface of the boss portion 4 to the outer surface of the flange portion 5a.
  • the plurality of projecting portions 16a are provided at eight locations on one side of the boss portion 4.
  • the plurality of projecting portions 16a are provided radially around the rotation shaft 1a.
  • the plurality of protrusions 16a have a rectangular parallelepiped shape.
  • the plurality of projecting portions 16b are provided from the other side surface of the boss portion 4 to the outer surface of the flange portion 5b.
  • the plurality of projecting portions 16b are provided at eight locations on the other side of the boss portion 4.
  • the plurality of projecting portions 16b are provided radially around the rotation shaft 1a.
  • the plurality of protrusions 16b have a rectangular parallelepiped shape.
  • the plurality of projecting portions 17a are provided on the outer surface of the flange portion 5a.
  • the protruding portion 17a is provided concentrically around the rotation shaft 1a.
  • the plurality of protruding portions 17b are provided on the outer surface of the flange portion 5b.
  • the protruding portion 17b is provided concentrically around the rotation shaft 1a.
  • the plurality of protrusions 16a have the same shape and number as those of the plurality of protrusions 11a in the first embodiment.
  • the plurality of protrusions 16b have the same shape and number as those of the plurality of protrusions 11b in the first embodiment.
  • the protrusions 17a have the same shape and number as the protrusions 15a in FIG. 7 of the second embodiment.
  • the protrusions 17b have the same shape and number as those of the protrusions 15b in the second embodiment. That is, the plurality of projecting portions 11a of the first embodiment and the projecting portions 15a of the second embodiment are provided at the same time.
  • the plurality of projecting portions can increase the amount of heat dissipated to the atmosphere by the core body portion 3 even if each has a different shape.
  • FIG. 9 is a plan view of a second modification of the plurality of protrusions of the resin roller according to the second embodiment.
  • the figure on the left is a plan view of one side surface of the resin roller 10.
  • the figure on the right is a plan view of the side surface of the resin roller 10 on the other side.
  • the core body portion 3 of the resin roller 10 includes a plurality of protrusions 18a, a plurality of protrusions 18b, a plurality of protrusions 19a, and a plurality of protrusions 19b.
  • the plurality of projecting portions 18a are provided from one side surface of the boss portion 4 to the outer surface of the flange portion 5a.
  • the plurality of projecting portions 18a are provided at eight locations on one side of the boss portion 4.
  • the plurality of projecting portions 18a are provided radially around the rotation shaft 1a.
  • the plurality of protrusions 18a have a rectangular parallelepiped shape.
  • the plurality of projecting portions 18b are provided from the other side surface of the boss portion 4 to the outer surface of the flange portion 5b.
  • the plurality of projecting portions 18b are provided at eight locations on the other side of the boss portion 4.
  • the plurality of projecting portions 18b are provided radially around the rotation shaft 1a.
  • the plurality of protrusions 18b have a rectangular parallelepiped shape.
  • a plurality of the plurality of projecting portions 19a are provided on one side surface of the boss portion 4 and on the outer surface of the flange portion 5a.
  • the plurality of projecting portions 19a are provided concentrically around the rotation shaft 1a.
  • a plurality of the plurality of projecting portions 19b are provided on the other side surface of the boss portion 4 and the outer surface of the flange portion 5b.
  • the plurality of projecting portions 19b are provided concentrically around the rotation shaft 1a.
  • the plurality of protrusions 19a are provided with different numbers of protrusions as compared with the protrusions 17a in the first modification of the second embodiment.
  • the plurality of protrusions 19b are different in the number of protrusions provided as compared with the protrusions 17b in the first modification of the second embodiment.
  • the plurality of protrusions can increase the amount of heat dissipated to the atmosphere by the core body 3 regardless of the number of protrusions provided.
  • the resin roller according to the present disclosure can be used in carts such as steps of passenger conveyors such as escalators, elevators, and the like.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

L'invention concerne un rouleau de résine capable de supprimer une augmentation de température à l'intérieur de celui-ci pendant le laminage. Ce rouleau de résine comprend : une partie de palier qui supporte de manière rotative un arbre ; une partie de pneumatique qui est formée sous une forme annulaire et a un axe aligné avec la partie de palier sur le côté de circonférence externe de la partie de palier ; une partie de bossage qui est disposée entre la partie de palier et la partie de pneumatique, serre la partie de palier et est en contact avec la surface circonférentielle interne de la partie de pneumatique ; une paire de parties de bride qui sont disposées sur la partie de bossage et sont respectivement en contact avec une surface latérale et l'autre surface latérale de la partie de pneumatique ; et au moins une partie saillante qui fait saillie dans la direction axiale de la partie de palier à partir des surfaces latérales de la paire de parties de bride qui ne sont pas en contact avec la partie de pneumatique et à partir des surfaces latérales de la partie de bossage.
PCT/JP2020/003010 2020-01-28 2020-01-28 Rouleau de résine WO2021152700A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2020553662A JPWO2021152700A1 (fr) 2020-01-28 2020-01-28
PCT/JP2020/003010 WO2021152700A1 (fr) 2020-01-28 2020-01-28 Rouleau de résine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/003010 WO2021152700A1 (fr) 2020-01-28 2020-01-28 Rouleau de résine

Publications (1)

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WO2021152700A1 true WO2021152700A1 (fr) 2021-08-05

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Publication number Priority date Publication date Assignee Title
JPS4927129U (fr) * 1972-06-13 1974-03-08
JPH04309682A (ja) * 1991-04-05 1992-11-02 Toyo Takasago Kandenchi Kk ゴムロ−ラ−
JP2003146571A (ja) * 2002-10-30 2003-05-21 Mitsubishi Electric Corp マンコンベア
JP2011068431A (ja) * 2009-09-24 2011-04-07 Mitsubishi Electric Corp 乗客コンベアの踏段ローラ
US20110147332A1 (en) * 2009-12-23 2011-06-23 Breyer Scott T Trolley Wheel Technology

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017519700A (ja) * 2014-05-28 2017-07-20 インベンテイオ・アクテイエンゲゼルシヤフトＩｎｖｅｎｔｉｏ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ 動く歩道またはエスカレータのリンクチェーン

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4927129U (fr) * 1972-06-13 1974-03-08
JPH04309682A (ja) * 1991-04-05 1992-11-02 Toyo Takasago Kandenchi Kk ゴムロ−ラ−
JP2003146571A (ja) * 2002-10-30 2003-05-21 Mitsubishi Electric Corp マンコンベア
JP2011068431A (ja) * 2009-09-24 2011-04-07 Mitsubishi Electric Corp 乗客コンベアの踏段ローラ
US20110147332A1 (en) * 2009-12-23 2011-06-23 Breyer Scott T Trolley Wheel Technology

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