WO2023157300A1 - Transmitting device - Google Patents

Transmitting device Download PDF

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Publication number
WO2023157300A1
WO2023157300A1 PCT/JP2022/006963 JP2022006963W WO2023157300A1 WO 2023157300 A1 WO2023157300 A1 WO 2023157300A1 JP 2022006963 W JP2022006963 W JP 2022006963W WO 2023157300 A1 WO2023157300 A1 WO 2023157300A1
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WO
WIPO (PCT)
Prior art keywords
annular transmission
annular
transmission device
transmission
guide
Prior art date
Application number
PCT/JP2022/006963
Other languages
French (fr)
Japanese (ja)
Inventor
石山尚弥
Original Assignee
ファナック株式会社
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 ファナック株式会社 filed Critical ファナック株式会社
Priority to PCT/JP2022/006963 priority Critical patent/WO2023157300A1/en
Priority to TW112106034A priority patent/TW202334015A/en
Publication of WO2023157300A1 publication Critical patent/WO2023157300A1/en

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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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains

Definitions

  • the present invention relates to a wrap-type transmission device.
  • a wrap-type transmission device includes two rotating members and an annular transmission member such as a chain or belt.
  • An annular transmission member is wound around the two rotating members.
  • One of the two rotating members rotates according to the driving of an actuator such as a motor.
  • the annular transmission member is driven (moved, rotated) in accordance with the rotation of the rotary member.
  • the transmission device disclosed in Japanese Utility Model Laid-Open No. 05-083515 further includes a tension fitting.
  • the tension fitting reduces loosening of the annular transmission member by pressing the annular transmission member from the outside to the inside of the annular transmission member.
  • Machine tools are also equipped with transmission devices.
  • the transmission device is used, for example, as a transport device for transporting a plurality of tools.
  • a plurality of attachments are attached to the annular transmission member.
  • Each of the plurality of attachments detachably holds a machine tool tool.
  • the plurality of attachments move along with the movement of the annular transmission member.
  • the transmission device is provided with a tension metal fitting, there is a problem that the tension metal fitting interferes with a plurality of attachments.
  • An object of the present invention is to solve the above-described problems.
  • One aspect of the present invention is a transmission device including a driving rotation member, a guide member, and an annular transmission member wound around the driving rotation member and the guide member, wherein and a biasing device that applies tension to the annular transmission member by biasing the annular transmission member toward the outside of the annular transmission member.
  • FIG. 1 is a configuration diagram of a transmission device according to the first embodiment.
  • FIG. 2 is a diagram showing the transmission device when the inner guide member is displaced in the X direction more than in FIG.
  • FIG. 3 is a configuration diagram of a transmission device according to the second embodiment.
  • FIG. 4 is a configuration diagram of a transmission device according to Modification 1.
  • FIG. 5 is a configuration diagram of a transmission device according to Modification 2.
  • FIG. 6 is a configuration diagram of a first example of a transmission device according to modification 3.
  • FIG. 7 is a configuration diagram of a second example of the transmission device according to Modification 3.
  • FIG. 8 is a configuration diagram of a third example of a transmission device according to modification 3.
  • FIG. 1 is a configuration diagram of a transmission device according to the first embodiment.
  • FIG. 2 is a diagram showing the transmission device when the inner guide member is displaced in the X direction more than in FIG.
  • FIG. 3 is a configuration diagram of a transmission device according to the second
  • FIG. 1 is a configuration diagram of a transmission device 101 (10) according to the first embodiment.
  • the winding-type transmission device 101 includes a driving rotation member 12, an inner guide member (guide member) 14, an annular transmission member 16, a plurality of attachments 18, and an urging device 201 (20).
  • the transmission device 101 has ten attachments 18 .
  • the number of attachments 18 is not limited to ten.
  • Each of the drive rotation member 12 and the inner guide member 14 is a rotatable member.
  • Each of the drive rotation member 12 and the inner guide member 14 is, for example, a sprocket or a pulley.
  • the diameter of the driving rotation member 12 and the diameter of the inner guide member 14 may be different.
  • the X direction shown in FIG. 1 is the direction in which the drive rotation member 12 and the inner guide member 14 are arranged.
  • the annular transmission member 16 is, for example, an annular chain or an annular belt.
  • the belt is, for example, a timing belt.
  • the annular transmission member 16 is wound around the drive rotation member 12 and the inner guide member 14 . Therefore, the drive rotary member 12 and the inner guide member 14 contact the inner peripheral portion 16 a of the annular transmission member 16 .
  • the driving rotating member 12 is connected to an actuator such as a motor.
  • the driving rotary member 12 rotates around the rotation axis (point A in FIG. 1) of the driving rotary member 12 in accordance with the driving of the actuator.
  • An arrow DRA in FIG. 1 indicates the rotation direction of the drive rotation member 12 . Illustration of the actuator is omitted.
  • the annular transmission member 16 is driven (moved, rotated) in accordance with the rotation of the driving rotary member 12 . That is, the inner guide member 14 is a driven rotating member.
  • the inner guide member 14 is driven by the movement of the annular transmission member 16 and rotates around the rotational axis of the inner guide member 14 (point B1 in FIG. 1).
  • An arrow DRB in FIG. 1 indicates the direction of rotation of the inner guide member 14 .
  • the actuator that rotates the drive rotation member 12 and the inner guide member 14 are supported by the support member. However, illustration of the supporting member is omitted.
  • This support member supports the inner guide member 14 rotatably and slidably in the X direction.
  • the support member that supports the actuator that rotates the driving rotary member 12 and the support member that supports the inner guide member 14 may be integrated or separated.
  • the plurality of attachments 18 are members attached to the outer peripheral portion 16 b of the annular transmission member 16 .
  • a plurality of attachments 18 move according to the movement of the annular transmission member 16 .
  • Each of the plurality of attachments 18 is, for example, a chuck mechanism that detachably holds a machine tool tool.
  • An arrow CD in FIG. 1 indicates the moving direction of the plurality of attachments 18 (the moving direction of the annular transmission member 16).
  • the biasing device 201 is a device including an elastic member such as a compression spring.
  • the biasing device 201 is, for example, a tensioner.
  • the biasing device 201 may include an actuator such as a motor or a fluid pressure cylinder.
  • the biasing device 201 is arranged inside the annular transmission member 16 . Therefore, the biasing device 201 does not interfere with the plurality of attachments 18 even if the plurality of attachments 18 installed on the outer peripheral portion 16b move in accordance with the movement of the annular transmission member 16 .
  • the biasing device 201 is supported by the support member. Illustration of the supporting member is omitted.
  • the support member that supports the biasing device 201 may be integrated with or separate from the support member that supports the actuator that rotates the driving rotary member 12 or the support member that supports the inner guide member 14 .
  • the biasing device 201 biases the annular transmission member 16 from the inside of the annular transmission member 16 toward the outside of the annular transmission member 16 . By urging the annular transmission member 16, the biasing device 201 can apply tension to the annular transmission member 16 even when the annular transmission member 16 is extended.
  • the biasing device 201 biases the annular transmission member 16 in the X direction via the inner guide member 14 . Therefore, the inner guide member 14 moves in the X direction according to the biasing force.
  • each of the winding angle ⁇ 1 of the annular transmission member 16 around the driving rotary member 12 and the winding angle ⁇ 2 of the annular transmission member 16 around the inner guide member 14 is approximately It does not change. That is, according to the present embodiment, changes in the winding angle ⁇ 1 and the winding angle ⁇ 2 are suppressed. This prevents the ring-shaped transmission member 16 from coming off from the driving rotation member 12 or the inner guide member 14 .
  • FIG. 2 is a diagram showing the transmission device 10 when the inner guide member 14 is displaced in the X direction more than in FIG.
  • the arrow LA in FIG. 2 indicates the line of action of the biasing force of the biasing device 201 acting on the annular transmission member 16 via the inner guide member 14 .
  • arrow LA is also described as line of action LA.
  • the line of action LA acts on the annular transmission member 16 via the inner guide member 14 even in the state of FIG.
  • the direction of the biasing force of the biasing device 201 that biases the annular transmission member 16 is parallel to the virtual line segment LV1 that connects the driving rotation member 12 and the inner guide member 14 . Accordingly, each of the winding angle ⁇ 1 and the winding angle ⁇ 2 does not substantially change even if the inner guide member 14 is displaced in the X direction.
  • the virtual line segment LV1 connects, for example, the point A of the driving rotation member 12 and the point B1 of the inner guide member 14 .
  • the line of action LA it is more preferable for the line of action LA to pass through the point B1. Thereby, the biasing force of the biasing device 201 is efficiently transmitted to the annular transmission member 16 .
  • the transmission device 101 further includes an outer guide member 22 .
  • the outer guide member 22 is a member that guides the plurality of attachments 18 that move along the movement path of the annular transmission member 16 .
  • the outer guide member 22 is arranged outside the annular transmission member 16 .
  • the outer guide member 22 has an annulus sized to be outwardly spaced from the annular transmission member 16 by a fixed offset distance.
  • the outer guide member 22 is, for example, a guide rail.
  • the outer guide member 22 has a first outer guide portion 221 and a second outer guide portion 222 .
  • the first outer guide portion 221 is arranged along a portion of the annular transmission member 16 including the point of action PA of the biasing force.
  • the second outer guide portion 222 is a portion of the outer guide member 22 other than the first outer guide portion 221 . That is, the second outer guide portion 222 is arranged along a portion of the annular transmission member 16 other than a portion including the action point PA of the biasing force.
  • the point of action PA is the intersection of the line of action LA and the annular transmission member 16 .
  • the second outer guide portion 222 is provided so as not to be displaced according to the biasing force.
  • the second outer guide portion 222 is connected to the above-described support member that supports the driving rotary member 12 .
  • the first outer guide portion 221 is displaced according to the biasing force (see also FIGS. 1 and 2).
  • the first outer guide portion 221 is interlocked with the inner guide member 14 and displaced in the X direction.
  • the first outer guide portion 221 is connected to, for example, a shaft member that rotatably supports the inner guide member 14 .
  • the first outer guide portion 221 is slidably connected together with the inner guide member 14 to, for example, the aforementioned support member that supports the inner guide member 14 .
  • the plurality of attachments 18 move while being supported by the outer guide member 22 . Therefore, it is possible to move the plurality of attachments 18 in a stable state.
  • the outer guide member 22 since the first outer guide portion 221 is displaced in the X direction according to the biasing force, the outer guide member 22 does not prevent the annular transmission member 16 from being deformed according to the biasing force of the biasing device 201 . In other words, the outer guide member 22 does not prevent the urging device 201 from reducing the slackness of the annular transmission member 16 .
  • the first outer guide portion 221 includes a portion of the outer guide member 22 on the X direction side of the point B1 (see also FIGS. 1 and 2). This prevents the outer guide member 22 from interfering with the annular transmission member 16 according to the displacement of the inner guide member 14 in the X direction in the region of the transmission device 101 on the X direction side of the point B1.
  • FIG. 3 is a configuration diagram of a transmission device 102 (10) according to the second embodiment.
  • the transmission device 102 includes a driving rotation member 12, an inner guide member 14, an annular transmission member 16, and a plurality of attachments 18. However, descriptions of the drive rotation member 12, the inner guide member 14, the annular transmission member 16, and the plurality of attachments 18 are omitted (see the first embodiment).
  • outer guide member 22 may be omitted.
  • the transmission device 102 further includes a contact member 24 and a biasing device 202 (20).
  • the contact member 24 is a rotatable member.
  • the contact member 24 is, for example, a sprocket or pulley.
  • the contact member 24 is arranged inside the annular transmission member 16 . Therefore, the contact member 24 does not interfere with the plurality of attachments 18 that move in accordance with the movement of the annular transmission member 16 .
  • the contact member 24 contacts the inner peripheral portion 16 a of the annular transmission member 16 . Accordingly, the contact member 24 can rotate around the contact member 24 (point C1 in FIG. 3) in accordance with the movement of the annular transmission member 16. As shown in FIG. An arrow DRC in FIG. 3 indicates the direction of rotation of the contact member 24 .
  • the biasing device 202 is a device that appropriately includes an elastic member such as a compression spring and an actuator such as a motor or fluid pressure cylinder.
  • a biasing device 202 is arranged inside the annular transmission member 16 . Therefore, the urging device 202 does not interfere with the plurality of attachments 18 that move in accordance with the movement of the annular transmission member 16 .
  • the biasing device 202 biases the annular transmission member 16 from the inside of the annular transmission member 16 toward the outside of the annular transmission member 16 . This allows the biasing device 202 to apply tension to the annular transmission member 16 even if the annular transmission member 16 is stretched. However, the biasing device 202 biases the annular transmission member 16 via the contact member 24 .
  • the arrow LA indicates the line of action of the biasing force of the biasing device 202 acting on the annular transmission member 16 via the contact member 24 .
  • arrow LA is also described as line of action LA, as in the first embodiment.
  • the line of action LA is orthogonal to the virtual line segment LV1 (extended straight line of the virtual line segment LV1). As a result, only one of the winding angle .theta.1 and the winding angle .theta.2 is prevented from becoming extremely small.
  • annular transmission member 16 expands as the annular transmission member 16 deforms under the action of the biasing force. As a result, the annular transmission member 16 is more likely to interfere with other members or equipment arranged around the transmission device 10 .
  • the line of action LA and the virtual line segment LV1 intersect at point A or point B1.
  • the line of action LA illustrated in FIG. 3 and the virtual line segment LV1 intersect at point B1.
  • FIG. 4 is a configuration diagram of a transmission device 103 (10) according to Modification 1. As shown in FIG.
  • the transmission device 103 is a modification of the transmission device 101 according to the first embodiment.
  • the transmission device 103 differs from the transmission device 101 in that the inner guide member 14 is transformed into an inner guide member 141 .
  • the inner guide member 141 is a member having a curved surface 261 and a center of curvature B2.
  • the inner guide member 141 does not rotate even when the annular transmission member 16 moves. However, the annular transmission member 16 can slide on the curved surface 261 according to the rotation of the driving rotation member 12 .
  • a curvature center B2 is the curvature center of the curved surface 261 .
  • the direction of the biasing force of the biasing device 201 is parallel to the virtual line segment LV2 connecting the driving rotation member 12 and the inner guide member 141 .
  • each of the winding angle ⁇ 1 at which the annular transmission member 16 is wound around the driving rotation member 12 and the winding angle ⁇ 2 at which the annular transmission member 16 is wound around the inner guide member 141 changes according to the displacement of the inner guide member 141. is suppressed.
  • the virtual line segment LV2 is, for example, a line segment connecting the point A and the center of curvature B2.
  • the line of action LA passes through the center of curvature B2. Thereby, the biasing force of the biasing device 201 is efficiently transmitted to the annular transmission member 16 .
  • FIG. 5 is a configuration diagram of a transmission device 104 (10) according to Modification 2. As shown in FIG.
  • the transmission device 104 is a modification of the transmission device 102 according to the second embodiment.
  • the transmission device 102 may be modified in the same spirit as the first modification. That is, the transmission device 104 differs from the transmission device 102 in that the inner guide member 14 is transformed into the inner guide member 141 and the contact member 24 is transformed into the contact member 241 .
  • the contact member 241 is a member having a curved surface 262 and a center of curvature C2.
  • the contact member 241 does not rotate even when the annular transmission member 16 moves. However, the annular transmission member 16 can slide on the curved surface 262 .
  • the center of curvature C2 is the center of curvature of the curved surface 262 .
  • the line of action LA pass through the center of curvature C2. Thereby, the biasing force of the biasing device 202 is efficiently transmitted to the annular transmission member 16 .
  • the line of action LA and the virtual line segment LV2 intersect at point A or point B2.
  • Only one of the inner guide member 14 and the contact member 24 may be transformed into a non-rotating member.
  • FIG. 6 is a configuration diagram of a first example of the transmission device 105 (10) according to Modification 3. As shown in FIG.
  • the transmission device 105 is a modification of the transmission device 102 according to the second embodiment.
  • Transmission device 105 differs from transmission device 102 in that it comprises a plurality of inner guide members 14 . At least one of the plurality of inner guide members 14 may be the inner guide member 141 (see Modification 1). Also, the contact member 24 may be the contact member 241 (see Modification 2).
  • the biasing device 202 is adjacent to two of the drive rotary member 12 and the plurality of inner guide members 14 along the direction of movement (CD) of the annular transmission member 16 .
  • the biasing device 202 is adjacent to the rotary drive member 12 and one inner guide member 14 in the direction of movement of the annular transmission member 16 .
  • an imaginary line segment LV1 connects the drive rotary member 12 (point A) and one inner guide member 14 (point B1) that are adjacent in the moving direction of the annular transmission member 16 .
  • FIG. 7 is a configuration diagram of a second example of the transmission device 105 (10) according to Modification 3. As shown in FIG.
  • the transmission device 105 may have three or more inner guide members 14 (see FIG. 7).
  • FIG. 8 is a configuration diagram of a third example of the transmission device 105 (10) according to Modification 3. As shown in FIG. 8
  • the biasing device 202 may be adjacent to the two inner guide members 14 in the direction of movement of the annular transmission member 16 .
  • the line of action LA is preferably orthogonal to the imaginary line segment LV3 connecting two inner guide members 14 adjacent to the biasing device 202 in the moving direction of the annular transmission member 16 .
  • One invention is a transmission device (10) having a drive rotation member (12), a guide member (14), and an annular transmission member (16) wound around the drive rotation member and the guide member.
  • the transmission device further includes a contact member (24) disposed inside the annular transmission member and in contact with the annular transmission member, and the biasing device biases the contact member to may bias the annular transmission member via Thereby, the annular transmission member can be urged in a direction other than the direction in which the drive rotation member and the guide member are arranged.
  • the number of the guide member is singular, the guide member is a driven rotary member that rotates about a rotary shaft (B1) in accordance with the movement of the annular transmission member, and the biasing device is the contact member.
  • the line of action (LA) of the force for urging passes through the rotating shaft (A) of the driving rotating member or the rotating shaft (B1) of the driven rotating member, and the driving rotating member and the driven rotating member It may be orthogonal to the imaginary line segment (LV1, LV2) connecting the rotary member. This suppresses an increase in the expansion amount of the inner region of the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
  • the number of the guide member is singular, the guide member has a curved surface (261) on which the annular transmission member slides, and the line of action (LA ) is an imaginary line segment (LV1, LV2) passing through the rotation axis (A) of the driving rotation member or the center of curvature (B2) of the curved surface and connecting the driving rotation member and the guide member; may be orthogonal. This suppresses an increase in the expansion amount of the inner region of the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
  • the number of the guide members is plural, and the line of action (LA) of the force with which the biasing device biases the contact member is the driving rotary member and the contact member in the moving direction of the annular transmission member. may be orthogonal to the virtual line segments (LV1, LV2) connecting the guide members adjacent to the . This suppresses an increase in the expansion amount of the inner region of the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
  • the guide member adjacent to the contact member in the moving direction is a driven rotary member that rotates about a rotary shaft (B1) in accordance with the movement of the annular transmission member, and the virtual line segment is the driving member.
  • the rotating shaft (A) of the rotating member may be connected to the rotating shaft (B1) of the driven rotating member adjacent to the contact member in the moving direction. This prevents the annular transmission member from coming off from the driving rotation member or the guide member. Further, this suppresses an increase in the expansion amount of the region inside the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
  • the guide member adjacent to the contact member in the movement direction has a curved surface (261) on which the annular transmission member slides, and the imaginary line segment is the rotation axis (A) of the drive rotation member, You may connect with the curvature center (B2) of the said curved surface. This prevents the annular transmission member from coming off from the driving rotation member or the guide member. Further, this suppresses an increase in the expansion amount of the region inside the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
  • the number of the guide members is plural, and the line of action (LA) of the force with which the biasing device biases the contact member is two of the guide members adjacent to the contact member in the moving direction of the annular transmission member. It may be orthogonal to the virtual line segment (LV3) connecting the members. This suppresses an increase in the expansion amount of the inner region of the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
  • the biasing device may bias the annular transmission member via the guide member by biasing the guide member. As a result, it is possible to apply tension to the annular transmission member while suppressing changes in the winding angle on the drive rotation member side and the winding angle on the guide member side.
  • the urging device may urge the guide member in the direction in which the drive rotary member and the guide member are arranged. As a result, it is possible to apply tension to the annular transmission member while minimizing changes in the winding angle on the drive rotation member side and the winding angle on the guide member side.
  • the guide member is a driven rotary member that rotates according to the movement of the annular transmission member. It may be parallel to the imaginary line segment (LV1) connecting the rotating shaft (B1) of the driven rotating member. As a result, it is possible to apply tension to the annular transmission member while substantially eliminating variations in the winding angle on the drive rotation member side and the winding angle on the guide member side.
  • the guide member has a curved surface (261) on which the annular transmission member slides. may be parallel to the virtual line segment (LV2) connecting the center of curvature (B2) of the curved surface.
  • the transmission device may further include a plurality of attachments (18) installed outside the annular transmission member and detachably holding a plurality of tools for machine tools. This makes it possible, for example, to use the transmission as a magazine for machine tools.
  • the transmission device further includes an outer guide member (22) installed outside the annular transmission member and guiding the plurality of attachments along a movement path of the annular transmission member, the outer guide member A first outer guide portion provided along a portion of the transmission member including a point of action (PA) of a force biasing the annular transmission member and displaced according to the force biasing the annular transmission member.
  • a second outer guide portion (222) separated from the first outer guide portion and installed along a portion of the annular transmission member other than the portion including the point of action; may have This makes it possible to reduce slack in the annular transmission member while moving the plurality of attachments in a stable state.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Discharge Of Articles From Conveyors (AREA)

Abstract

This transmitting device (10), having a drive rotation member (12), a guiding member (14), and an annular transmitting member (16) wound around the drive rotation member (12) and the guiding member (14), comprises a biasing device (20) that is disposed inside the annular transmitting member (16) and biases the annular transmitting member (16) toward the outside of the annular transmitting member (16), thereby applying tension to the annular transmitting member (16).

Description

伝達装置Transmission device
　本発明は、巻き掛け式の伝達装置に関する。 The present invention relates to a wrap-type transmission device.
　巻き掛け式の伝達装置は、２つの回転部材と、チェーン、ベルト等の環状伝達部材とを備える。２つの回転部材に、環状伝達部材が巻き掛けられる。２つの回転部材のうちの一方が、モータ等のアクチュエータの駆動に応じて、回転する。環状伝達部材は、回転部材の回転に応じて、駆動（移動、回転）する。 A wrap-type transmission device includes two rotating members and an annular transmission member such as a chain or belt. An annular transmission member is wound around the two rotating members. One of the two rotating members rotates according to the driving of an actuator such as a motor. The annular transmission member is driven (moved, rotated) in accordance with the rotation of the rotary member.
　実開平０５－０８３５１５号公報に開示される伝達装置は、テンション金具をさらに備える。テンション金具は、環状伝達部材の外側から内側に向かって環状伝達部材を押さえることで、環状伝達部材の緩みを低減する。 The transmission device disclosed in Japanese Utility Model Laid-Open No. 05-083515 further includes a tension fitting. The tension fitting reduces loosening of the annular transmission member by pressing the annular transmission member from the outside to the inside of the annular transmission member.
　伝達装置は、工作機械にも備えられる。その場合、伝達装置は、例えば複数の工具を搬送する搬送装置として用いられる。例えば、環状伝達部材に、複数のアタッチメントが取付けられる。複数のアタッチメントの各々は、工作機械用の工具を着脱可能に保持する。 Machine tools are also equipped with transmission devices. In that case, the transmission device is used, for example, as a transport device for transporting a plurality of tools. For example, a plurality of attachments are attached to the annular transmission member. Each of the plurality of attachments detachably holds a machine tool tool.
　複数のアタッチメントは、環状伝達部材の移動に伴って移動する。しかしながら、伝達装置にテンション金具が備えられる場合、そのテンション金具が複数のアタッチメントに干渉するという問題がある。 The plurality of attachments move along with the movement of the annular transmission member. However, when the transmission device is provided with a tension metal fitting, there is a problem that the tension metal fitting interferes with a plurality of attachments.
　本発明は、上述した課題を解決することを目的とする。 An object of the present invention is to solve the above-described problems.
　本発明の一態様は、駆動用回転部材と、案内部材と、前記駆動用回転部材と前記案内部材とに巻き掛けられた環状伝達部材とを有する伝達装置であって、前記環状伝達部材の内側に配置され、前記環状伝達部材の外側に向けて前記環状伝達部材を付勢することで、前記環状伝達部材に張力を付与する付勢装置を備える、伝達装置である。 One aspect of the present invention is a transmission device including a driving rotation member, a guide member, and an annular transmission member wound around the driving rotation member and the guide member, wherein and a biasing device that applies tension to the annular transmission member by biasing the annular transmission member toward the outside of the annular transmission member.
　本発明によれば、環状伝達部材を付勢して環状伝達部材に張力を付与する付勢装置と、複数のアタッチメントと、の干渉を防止することができる。 According to the present invention, it is possible to prevent interference between the urging device that urges the annular transmission member to apply tension to the annular transmission member and the plurality of attachments.
図１は、第１の実施形態に係る伝達装置の構成図である。FIG. 1 is a configuration diagram of a transmission device according to the first embodiment. 図２は、内側案内部材が図１よりもＸ方向に変位した場合の伝達装置を示す図である。FIG. 2 is a diagram showing the transmission device when the inner guide member is displaced in the X direction more than in FIG. 図３は、第２の実施形態に係る伝達装置の構成図である。FIG. 3 is a configuration diagram of a transmission device according to the second embodiment. 図４は、変形例１に係る伝達装置の構成図である。FIG. 4 is a configuration diagram of a transmission device according to Modification 1. As shown in FIG. 図５は、変形例２に係る伝達装置の構成図である。FIG. 5 is a configuration diagram of a transmission device according to Modification 2. As shown in FIG. 図６は、変形例３に係る伝達装置の第１例の構成図である。FIG. 6 is a configuration diagram of a first example of a transmission device according to modification 3. As shown in FIG. 図７は、変形例３に係る伝達装置の第２例の構成図である。FIG. 7 is a configuration diagram of a second example of the transmission device according to Modification 3. As shown in FIG. 図８は、変形例３に係る伝達装置の第３例の構成図である。FIG. 8 is a configuration diagram of a third example of a transmission device according to modification 3. As shown in FIG.
　［第１の実施形態］
　図１は、第１の実施形態に係る伝達装置１０１（１０）の構成図である。 [First embodiment]
FIG. 1 is a configuration diagram of a transmission device 101 (10) according to the first embodiment.
　巻き掛け式の伝達装置１０１は、駆動用回転部材１２と、内側案内部材（案内部材）１４と、環状伝達部材１６と、複数のアタッチメント１８と、付勢装置２０１（２０）とを備える。伝達装置１０１は、１０個のアタッチメント１８を備える。ただし、アタッチメント１８の数は、１０個に限定されない。 The winding-type transmission device 101 includes a driving rotation member 12, an inner guide member (guide member) 14, an annular transmission member 16, a plurality of attachments 18, and an urging device 201 (20). The transmission device 101 has ten attachments 18 . However, the number of attachments 18 is not limited to ten.
　駆動用回転部材１２と、内側案内部材１４との各々は、回転可能な部材である。駆動用回転部材１２と、内側案内部材１４との各々は、例えばスプロケット、またはプーリである。駆動用回転部材１２の径と、内側案内部材１４の径とは、異なってもよい。図１に示されるＸ方向は、駆動用回転部材１２と、内側案内部材１４との並び方向である。 Each of the drive rotation member 12 and the inner guide member 14 is a rotatable member. Each of the drive rotation member 12 and the inner guide member 14 is, for example, a sprocket or a pulley. The diameter of the driving rotation member 12 and the diameter of the inner guide member 14 may be different. The X direction shown in FIG. 1 is the direction in which the drive rotation member 12 and the inner guide member 14 are arranged.
　環状伝達部材１６は、例えば環状のチェーン、または環状のベルトである。ベルトは、例えばタイミングベルトである。環状伝達部材１６は、駆動用回転部材１２と、内側案内部材１４とに巻き掛けられる。したがって、駆動用回転部材１２と、内側案内部材１４とは、環状伝達部材１６のうち内側の内周部１６ａと接触する。 The annular transmission member 16 is, for example, an annular chain or an annular belt. The belt is, for example, a timing belt. The annular transmission member 16 is wound around the drive rotation member 12 and the inner guide member 14 . Therefore, the drive rotary member 12 and the inner guide member 14 contact the inner peripheral portion 16 a of the annular transmission member 16 .
　駆動用回転部材１２は、モータ等のアクチュエータに接続される。駆動用回転部材１２は、アクチュエータの駆動に応じて、駆動用回転部材１２の回転軸（図１の点Ａ）を中心に回転する。図１の矢印ＤＲＡは、駆動用回転部材１２の回転方向を示す。アクチュエータの図示は省略する。 The driving rotating member 12 is connected to an actuator such as a motor. The driving rotary member 12 rotates around the rotation axis (point A in FIG. 1) of the driving rotary member 12 in accordance with the driving of the actuator. An arrow DRA in FIG. 1 indicates the rotation direction of the drive rotation member 12 . Illustration of the actuator is omitted.
　環状伝達部材１６は、駆動用回転部材１２の回転に応じて駆動（移動、回転）する。つまり、内側案内部材１４は、従動用回転部材である。内側案内部材１４は、環状伝達部材１６の移動に従動して、内側案内部材１４の回転軸（図１の点Ｂ１）を中心に回転する。図１の矢印ＤＲＢは、内側案内部材１４の回転方向を示す。 The annular transmission member 16 is driven (moved, rotated) in accordance with the rotation of the driving rotary member 12 . That is, the inner guide member 14 is a driven rotating member. The inner guide member 14 is driven by the movement of the annular transmission member 16 and rotates around the rotational axis of the inner guide member 14 (point B1 in FIG. 1). An arrow DRB in FIG. 1 indicates the direction of rotation of the inner guide member 14 .
　なお、駆動用回転部材１２を回転させるアクチュエータと、内側案内部材１４とは、支持部材に支持される。ただし、その支持部材の図示は省略する。この支持部材は、内側案内部材１４を回転可能、且つＸ方向にスライド可能に支持する。なお、駆動用回転部材１２を回転させるアクチュエータを支持する支持部材と、内側案内部材１４を支持する支持部材とは、一体でもよいし、別体でもよい。 The actuator that rotates the drive rotation member 12 and the inner guide member 14 are supported by the support member. However, illustration of the supporting member is omitted. This support member supports the inner guide member 14 rotatably and slidably in the X direction. The support member that supports the actuator that rotates the driving rotary member 12 and the support member that supports the inner guide member 14 may be integrated or separated.
　複数のアタッチメント１８は、環状伝達部材１６のうち外側の外周部１６ｂに取り付けられる部材である。複数のアタッチメント１８は、環状伝達部材１６の移動に応じて、移動する。複数のアタッチメント１８の各々は、例えば工作機械用の工具を着脱可能に保持するチャック機構である。図１の矢印ＣＤは、複数のアタッチメント１８の移動方向（環状伝達部材１６の移動方向）を示す。 The plurality of attachments 18 are members attached to the outer peripheral portion 16 b of the annular transmission member 16 . A plurality of attachments 18 move according to the movement of the annular transmission member 16 . Each of the plurality of attachments 18 is, for example, a chuck mechanism that detachably holds a machine tool tool. An arrow CD in FIG. 1 indicates the moving direction of the plurality of attachments 18 (the moving direction of the annular transmission member 16).
　付勢装置２０１は、圧縮バネ等の弾性部材を含む装置である。付勢装置２０１は、例えばテンショナである。なお、付勢装置２０１は、モータ、流体圧シリンダ等のアクチュエータを含んでもよい。 The biasing device 201 is a device including an elastic member such as a compression spring. The biasing device 201 is, for example, a tensioner. Note that the biasing device 201 may include an actuator such as a motor or a fluid pressure cylinder.
　付勢装置２０１は、環状伝達部材１６の内側に配される。したがって、付勢装置２０１は、外周部１６ｂに設置された複数のアタッチメント１８が環状伝達部材１６の移動に応じて移動しても、複数のアタッチメント１８に干渉しない。付勢装置２０１は、支持部材に支持される。その支持部材の図示は、省略する。なお、付勢装置２０１を支持する支持部材は、駆動用回転部材１２を回転させるアクチュエータを支持する支持部材、または内側案内部材１４を支持する支持部材と一体でもよいし、別体でもよい。 The biasing device 201 is arranged inside the annular transmission member 16 . Therefore, the biasing device 201 does not interfere with the plurality of attachments 18 even if the plurality of attachments 18 installed on the outer peripheral portion 16b move in accordance with the movement of the annular transmission member 16 . The biasing device 201 is supported by the support member. Illustration of the supporting member is omitted. The support member that supports the biasing device 201 may be integrated with or separate from the support member that supports the actuator that rotates the driving rotary member 12 or the support member that supports the inner guide member 14 .
　付勢装置２０１は、環状伝達部材１６の内側から、環状伝達部材１６の外側に向けて、環状伝達部材１６を付勢する。付勢装置２０１は、環状伝達部材１６を付勢することで、環状伝達部材１６が伸びた場合でも、環状伝達部材１６に張力を付与することができる。 The biasing device 201 biases the annular transmission member 16 from the inside of the annular transmission member 16 toward the outside of the annular transmission member 16 . By urging the annular transmission member 16, the biasing device 201 can apply tension to the annular transmission member 16 even when the annular transmission member 16 is extended.
　ただし、付勢装置２０１は、内側案内部材１４を介して、環状伝達部材１６をＸ方向に付勢する。したがって、内側案内部材１４は、付勢力に応じて、Ｘ方向に移動する。 However, the biasing device 201 biases the annular transmission member 16 in the X direction via the inner guide member 14 . Therefore, the inner guide member 14 moves in the X direction according to the biasing force.
　内側案内部材１４がＸ方向に移動しても、環状伝達部材１６の駆動用回転部材１２への巻き付け角度θ１と、環状伝達部材１６の内側案内部材１４への巻き付け角度θ２との各々は、ほぼ変化しない。つまり、本実施形態によれば、巻き付け角度θ１と巻き付け角度θ２との変化が抑制される。これにより、駆動用回転部材１２または内側案内部材１４から環状伝達部材１６が外れることが防止される。 Even if the inner guide member 14 moves in the X direction, each of the winding angle θ1 of the annular transmission member 16 around the driving rotary member 12 and the winding angle θ2 of the annular transmission member 16 around the inner guide member 14 is approximately It does not change. That is, according to the present embodiment, changes in the winding angle θ1 and the winding angle θ2 are suppressed. This prevents the ring-shaped transmission member 16 from coming off from the driving rotation member 12 or the inner guide member 14 .
　図２は、内側案内部材１４が図１よりもＸ方向に変位した場合の伝達装置１０を示す図である。 FIG. 2 is a diagram showing the transmission device 10 when the inner guide member 14 is displaced in the X direction more than in FIG.
　図２中の矢印ＬＡは、内側案内部材１４を介して環状伝達部材１６に作用する付勢装置２０１の付勢力の作用線を示す。以下の説明において、矢印ＬＡは、作用線ＬＡとも記載される。なお、作用線ＬＡは、図１の状態においても、内側案内部材１４を介して環状伝達部材１６に作用している。 The arrow LA in FIG. 2 indicates the line of action of the biasing force of the biasing device 201 acting on the annular transmission member 16 via the inner guide member 14 . In the following description, arrow LA is also described as line of action LA. The line of action LA acts on the annular transmission member 16 via the inner guide member 14 even in the state of FIG.
　環状伝達部材１６を付勢する付勢装置２０１の付勢力の方向は、駆動用回転部材１２と内側案内部材１４とを結ぶ仮想線分ＬＶ１と平行であると、好ましい。これにより、巻き付け角度θ１と、巻き付け角度θ２との各々は、内側案内部材１４がＸ方向に変位しても、ほぼ変化しない。仮想線分ＬＶ１は、例えば、駆動用回転部材１２の点Ａと、内側案内部材１４の点Ｂ１と、を結ぶ。 It is preferable that the direction of the biasing force of the biasing device 201 that biases the annular transmission member 16 is parallel to the virtual line segment LV1 that connects the driving rotation member 12 and the inner guide member 14 . Accordingly, each of the winding angle θ1 and the winding angle θ2 does not substantially change even if the inner guide member 14 is displaced in the X direction. The virtual line segment LV1 connects, for example, the point A of the driving rotation member 12 and the point B1 of the inner guide member 14 .
　また、作用線ＬＡは、点Ｂ１を通ると、さらに好ましい。これにより、付勢装置２０１の付勢力が、環状伝達部材１６に効率よく伝達される。 Further, it is more preferable for the line of action LA to pass through the point B1. Thereby, the biasing force of the biasing device 201 is efficiently transmitted to the annular transmission member 16 .
　また、伝達装置１０１は、外側案内部材２２をさらに備えると、好ましい。外側案内部材２２は、環状伝達部材１６の移動経路に沿って移動する複数のアタッチメント１８を案内する部材である。外側案内部材２２は、環状伝達部材１６の外側に配される。外側案内部材２２は、環状伝達部材１６と一定のオフセット距離だけ外側に離間した大きさの環状を有する。外側案内部材２２は、例えばガイドレールである。 Moreover, it is preferable that the transmission device 101 further includes an outer guide member 22 . The outer guide member 22 is a member that guides the plurality of attachments 18 that move along the movement path of the annular transmission member 16 . The outer guide member 22 is arranged outside the annular transmission member 16 . The outer guide member 22 has an annulus sized to be outwardly spaced from the annular transmission member 16 by a fixed offset distance. The outer guide member 22 is, for example, a guide rail.
　外側案内部材２２は、第１外側案内部２２１と、第２外側案内部２２２とを有する。 The outer guide member 22 has a first outer guide portion 221 and a second outer guide portion 222 .
　第１外側案内部２２１は、環状伝達部材１６のうち、付勢力の作用点ＰＡを含む一部に沿って配される。 The first outer guide portion 221 is arranged along a portion of the annular transmission member 16 including the point of action PA of the biasing force.
　これに対し、第２外側案内部２２２は、外側案内部材２２のうち、第１外側案内部２２１以外の部分である。つまり、第２外側案内部２２２は、環状伝達部材１６のうち、付勢力の作用点ＰＡを含む一部以外の部分に沿って配される。作用点ＰＡは、作用線ＬＡと環状伝達部材１６との交点である。 On the other hand, the second outer guide portion 222 is a portion of the outer guide member 22 other than the first outer guide portion 221 . That is, the second outer guide portion 222 is arranged along a portion of the annular transmission member 16 other than a portion including the action point PA of the biasing force. The point of action PA is the intersection of the line of action LA and the annular transmission member 16 .
　また、第２外側案内部２２２は、付勢力に応じて変位しないように設けられる。例えば、第２外側案内部２２２は、駆動用回転部材１２を支持する前述の支持部材に連結される。 Also, the second outer guide portion 222 is provided so as not to be displaced according to the biasing force. For example, the second outer guide portion 222 is connected to the above-described support member that supports the driving rotary member 12 .
　これに対し、第１外側案内部２２１は、付勢力に応じて変位する（図１、図２も参照）。例えば、第１外側案内部２２１は、内側案内部材１４に連動して、Ｘ方向に変位する。第１外側案内部２２１は、例えば、内側案内部材１４を回転可能に支持する軸部材に連結される。また、第１外側案内部２２１は、例えば、内側案内部材１４を支持する前述の支持部材に、内側案内部材１４とともにスライド可能に連結される。 On the other hand, the first outer guide portion 221 is displaced according to the biasing force (see also FIGS. 1 and 2). For example, the first outer guide portion 221 is interlocked with the inner guide member 14 and displaced in the X direction. The first outer guide portion 221 is connected to, for example, a shaft member that rotatably supports the inner guide member 14 . In addition, the first outer guide portion 221 is slidably connected together with the inner guide member 14 to, for example, the aforementioned support member that supports the inner guide member 14 .
　上記の外側案内部材２２によれば、複数のアタッチメント１８は外側案内部材２２に支持されながら移動する。したがって、複数のアタッチメント１８を安定した状態で移動させることができる。 According to the outer guide member 22 described above, the plurality of attachments 18 move while being supported by the outer guide member 22 . Therefore, it is possible to move the plurality of attachments 18 in a stable state.
　しかも、第１外側案内部２２１が付勢力に応じてＸ方向に変位するので、外側案内部材２２は、付勢装置２０１の付勢力に応じて環状伝達部材１６が変形することを阻害しない。つまり、外側案内部材２２は、付勢装置２０１が環状伝達部材１６の弛みを低減することを阻害しない。 Moreover, since the first outer guide portion 221 is displaced in the X direction according to the biasing force, the outer guide member 22 does not prevent the annular transmission member 16 from being deformed according to the biasing force of the biasing device 201 . In other words, the outer guide member 22 does not prevent the urging device 201 from reducing the slackness of the annular transmission member 16 .
　なお、第１外側案内部２２１は、外側案内部材２２のうち、点Ｂ１よりもＸ方向側の部分を含むと、好ましい（図１、図２も参照）。これにより、伝達装置１０１のうち点Ｂ１よりもＸ方向側の領域において、内側案内部材１４のＸ方向の変位に応じて外側案内部材２２が環状伝達部材１６に干渉することが、防止される。 It is preferable that the first outer guide portion 221 includes a portion of the outer guide member 22 on the X direction side of the point B1 (see also FIGS. 1 and 2). This prevents the outer guide member 22 from interfering with the annular transmission member 16 according to the displacement of the inner guide member 14 in the X direction in the region of the transmission device 101 on the X direction side of the point B1.
　［第２の実施形態］
　以下には、第２の実施形態が記載される。ただし、第１の実施形態と重複する説明は、以下の説明では可能な限り省略される。第１の実施形態で説明済みの要素には、特に断らない限り、第１の実施形態と同一の参照符号が付される。 [Second embodiment]
A second embodiment is described below. However, explanations overlapping with the first embodiment will be omitted as much as possible in the following explanation. Elements already described in the first embodiment are given the same reference numerals as in the first embodiment unless otherwise specified.
　図３は、第２の実施形態に係る伝達装置１０２（１０）の構成図である。 FIG. 3 is a configuration diagram of a transmission device 102 (10) according to the second embodiment.
　伝達装置１０２は、駆動用回転部材１２と、内側案内部材１４と、環状伝達部材１６と、複数のアタッチメント１８とを備える。ただし、駆動用回転部材１２と、内側案内部材１４と、環状伝達部材１６と、複数のアタッチメント１８との説明は省略する（第１の実施形態を参照）。 The transmission device 102 includes a driving rotation member 12, an inner guide member 14, an annular transmission member 16, and a plurality of attachments 18. However, descriptions of the drive rotation member 12, the inner guide member 14, the annular transmission member 16, and the plurality of attachments 18 are omitted (see the first embodiment).
　なお、外側案内部材２２は、省略されてもよい。 Note that the outer guide member 22 may be omitted.
　伝達装置１０２は、接触部材２４と、付勢装置２０２（２０）とをさらに備える。 The transmission device 102 further includes a contact member 24 and a biasing device 202 (20).
　接触部材２４は、回転可能な部材である。接触部材２４は、例えば、スプロケット、またはプーリである。接触部材２４は、環状伝達部材１６の内側に配される。したがって、接触部材２４は、環状伝達部材１６の移動に応じて移動する複数のアタッチメント１８に干渉しない。 The contact member 24 is a rotatable member. The contact member 24 is, for example, a sprocket or pulley. The contact member 24 is arranged inside the annular transmission member 16 . Therefore, the contact member 24 does not interfere with the plurality of attachments 18 that move in accordance with the movement of the annular transmission member 16 .
　また、接触部材２４は、環状伝達部材１６の内周部１６ａに接触する。したがって、接触部材２４は、環状伝達部材１６の移動に応じて、接触部材２４（図３の点Ｃ１）を中心に回転することができる。図３の矢印ＤＲＣは、接触部材２４の回転方向を示す。 Also, the contact member 24 contacts the inner peripheral portion 16 a of the annular transmission member 16 . Accordingly, the contact member 24 can rotate around the contact member 24 (point C1 in FIG. 3) in accordance with the movement of the annular transmission member 16. As shown in FIG. An arrow DRC in FIG. 3 indicates the direction of rotation of the contact member 24 .
　付勢装置２０２は、第１の実施形態の付勢装置２０１と同様に、例えば圧縮バネ等の弾性部材と、モータ、流体圧シリンダ等のアクチュエータとを適宜含む装置である。付勢装置２０２は、環状伝達部材１６の内側に配される。したがって、付勢装置２０２は、環状伝達部材１６の移動に応じて移動する複数のアタッチメント１８に干渉しない。 As with the biasing device 201 of the first embodiment, the biasing device 202 is a device that appropriately includes an elastic member such as a compression spring and an actuator such as a motor or fluid pressure cylinder. A biasing device 202 is arranged inside the annular transmission member 16 . Therefore, the urging device 202 does not interfere with the plurality of attachments 18 that move in accordance with the movement of the annular transmission member 16 .
　付勢装置２０２は、環状伝達部材１６の内側から、環状伝達部材１６の外側に向けて、環状伝達部材１６を付勢する。これにより、付勢装置２０２は、環状伝達部材１６が伸びたとしても、環状伝達部材１６に張力を付与することができる。ただし、付勢装置２０２は、接触部材２４を介して、環状伝達部材１６を付勢する。 The biasing device 202 biases the annular transmission member 16 from the inside of the annular transmission member 16 toward the outside of the annular transmission member 16 . This allows the biasing device 202 to apply tension to the annular transmission member 16 even if the annular transmission member 16 is stretched. However, the biasing device 202 biases the annular transmission member 16 via the contact member 24 .
　本実施形態において、矢印ＬＡは、接触部材２４を介して環状伝達部材１６に作用する付勢装置２０２の付勢力の作用線を示す。以下の説明において、第１の実施形態と同様に、矢印ＬＡは、作用線ＬＡとも記載される。 In this embodiment, the arrow LA indicates the line of action of the biasing force of the biasing device 202 acting on the annular transmission member 16 via the contact member 24 . In the following description, arrow LA is also described as line of action LA, as in the first embodiment.
　作用線ＬＡは、仮想線分ＬＶ１（仮想線分ＬＶ１の延長直線）と直交すると、好ましい。これにより、巻き付け角度θ１と、巻き付け角度θ２と、のうち一方のみが極端に小さくなることが、抑制される。 It is preferable that the line of action LA is orthogonal to the virtual line segment LV1 (extended straight line of the virtual line segment LV1). As a result, only one of the winding angle .theta.1 and the winding angle .theta.2 is prevented from becoming extremely small.
　作用線ＬＡは、点Ｃ１を通ると、さらに好ましい。これにより、付勢装置２０２の付勢力が、環状伝達部材１６に効率よく伝達される。 It is more preferable for the line of action LA to pass through the point C1. Thereby, the biasing force of the biasing device 202 is efficiently transmitted to the annular transmission member 16 .
　なお、環状伝達部材１６の内側の領域は、環状伝達部材１６が付勢力の作用で変形することに応じて、拡大する。その結果、環状伝達部材１６が、伝達装置１０の周辺に配された他の部材または設備に干渉するおそれが大きくなる。 Note that the area inside the annular transmission member 16 expands as the annular transmission member 16 deforms under the action of the biasing force. As a result, the annular transmission member 16 is more likely to interfere with other members or equipment arranged around the transmission device 10 .
　この点に関し、作用線ＬＡと仮想線分ＬＶ１との交点は、点Ａ、または点Ｂ１に近いほど、好ましい。作用線ＬＡと仮想線分ＬＶ１とは、点Ａ上、または点Ｂ１上で交わると、最も好ましい。図３に例示された作用線ＬＡと仮想線分ＬＶ１とは、点Ｂ１上で交わる。 Regarding this point, the closer the intersection of the line of action LA and the virtual line segment LV1 is to point A or point B1, the better. Most preferably, the line of action LA and the virtual line segment LV1 intersect at point A or point B1. The line of action LA illustrated in FIG. 3 and the virtual line segment LV1 intersect at point B1.
　作用線ＬＡと仮想線分ＬＶ１との交点が点Ａ、または点Ｂ１に近いほど、環状伝達部材１６が付勢力の作用で変形することに応じた環状伝達部材１６の内側の領域の拡大量の増加は、抑制される。 The closer the intersection of the line of action LA and the virtual line segment LV1 to the point A or the point B1, the larger the amount of expansion of the inner region of the annular transmission member 16 according to the deformation of the annular transmission member 16 due to the action of the biasing force. Growth is suppressed.
　［変形例］
　以下には、各実施形態に係る変形例が記載される。ただし、各実施形態と重複する説明は、以下の説明では可能な限り省略される。各実施形態で説明済みの構成要素には、特に断らない限り、各実施形態と同一の参照符号が付される。 [Modification]
Modifications according to each embodiment are described below. However, explanations overlapping with each embodiment will be omitted as much as possible in the following explanation. Components that have already been described in each embodiment are given the same reference numerals as in each embodiment unless otherwise specified.
　（変形例１）
　図４は、変形例１に係る伝達装置１０３（１０）の構成図である。 (Modification 1)
FIG. 4 is a configuration diagram of a transmission device 103 (10) according to Modification 1. As shown in FIG.
　伝達装置１０３は、第１の実施形態に係る伝達装置１０１の変形例である。伝達装置１０３は、内側案内部材１４が内側案内部材１４１に変形されるという点で、伝達装置１０１と相違する。 The transmission device 103 is a modification of the transmission device 101 according to the first embodiment. The transmission device 103 differs from the transmission device 101 in that the inner guide member 14 is transformed into an inner guide member 141 .
　内側案内部材１４１は、曲面２６１と、曲率中心Ｂ２とを有する部材である。内側案内部材１４１は、環状伝達部材１６が移動しても、回転しない。ただし、環状伝達部材１６は、駆動用回転部材１２の回転に応じて、曲面２６１上を摺動することができる。曲率中心Ｂ２は、曲面２６１の曲率中心である。 The inner guide member 141 is a member having a curved surface 261 and a center of curvature B2. The inner guide member 141 does not rotate even when the annular transmission member 16 moves. However, the annular transmission member 16 can slide on the curved surface 261 according to the rotation of the driving rotation member 12 . A curvature center B2 is the curvature center of the curved surface 261 .
　付勢装置２０１の付勢力の方向は、駆動用回転部材１２と内側案内部材１４１とを結ぶ仮想線分ＬＶ２と平行すると、好ましい。これにより、環状伝達部材１６の駆動用回転部材１２への巻き付け角度θ１と、環状伝達部材１６の内側案内部材１４１への巻き付け角度θ２と、の各々が内側案内部材１４１の変位に応じて変化することが抑制される。仮想線分ＬＶ２は、例えば点Ａと曲率中心Ｂ２とを結ぶ線分である。 It is preferable that the direction of the biasing force of the biasing device 201 is parallel to the virtual line segment LV2 connecting the driving rotation member 12 and the inner guide member 141 . As a result, each of the winding angle θ1 at which the annular transmission member 16 is wound around the driving rotation member 12 and the winding angle θ2 at which the annular transmission member 16 is wound around the inner guide member 141 changes according to the displacement of the inner guide member 141. is suppressed. The virtual line segment LV2 is, for example, a line segment connecting the point A and the center of curvature B2.
　また、作用線ＬＡが曲率中心Ｂ２を通ると、より好ましい。これにより、付勢装置２０１の付勢力が、環状伝達部材１６に効率よく伝達される。 Also, it is more preferable that the line of action LA passes through the center of curvature B2. Thereby, the biasing force of the biasing device 201 is efficiently transmitted to the annular transmission member 16 .
　（変形例２）
　図５は、変形例２に係る伝達装置１０４（１０）の構成図である。 (Modification 2)
FIG. 5 is a configuration diagram of a transmission device 104 (10) according to Modification 2. As shown in FIG.
　伝達装置１０４は、第２の実施形態に係る伝達装置１０２の変形例である。伝達装置１０２は、変形例１と同趣旨で変形されてもよい。すなわち、伝達装置１０４は、内側案内部材１４が内側案内部材１４１に変形される点と、接触部材２４が接触部材２４１に変形される点とで、伝達装置１０２と相違する。 The transmission device 104 is a modification of the transmission device 102 according to the second embodiment. The transmission device 102 may be modified in the same spirit as the first modification. That is, the transmission device 104 differs from the transmission device 102 in that the inner guide member 14 is transformed into the inner guide member 141 and the contact member 24 is transformed into the contact member 241 .
　内側案内部材１４１の説明は、省略する（変形例１を参照）。 A description of the inner guide member 141 is omitted (see Modification 1).
　接触部材２４１は、曲面２６２と、曲率中心Ｃ２とを有する部材である。接触部材２４１は、環状伝達部材１６が移動しても、回転しない。ただし、環状伝達部材１６は、曲面２６２上を摺動することができる。曲率中心Ｃ２は、曲面２６２の曲率中心である。 The contact member 241 is a member having a curved surface 262 and a center of curvature C2. The contact member 241 does not rotate even when the annular transmission member 16 moves. However, the annular transmission member 16 can slide on the curved surface 262 . The center of curvature C2 is the center of curvature of the curved surface 262 .
　作用線ＬＡは、曲率中心Ｃ２を通ると、好ましい。これにより、付勢装置２０２の付勢力が、環状伝達部材１６に効率よく伝達される。 It is preferable that the line of action LA pass through the center of curvature C2. Thereby, the biasing force of the biasing device 202 is efficiently transmitted to the annular transmission member 16 .
　作用線ＬＡと仮想線分ＬＶ２との交点は、点Ａ、または曲率中心Ｂ２に近いほど、好ましい。作用線ＬＡと仮想線分ＬＶ２とは、点Ａ上、または点Ｂ２上で交わると、最も好ましい。作用線ＬＡと仮想線分ＬＶ２との交点が点Ａ、または点Ｂ２に近いほど、環状伝達部材１６が付勢力の作用で変形することに応じた環状伝達部材１６の内側の領域の拡大量の増加は、抑制される。 The closer the intersection of the line of action LA and the virtual line segment LV2 is to the point A or the center of curvature B2, the better. Most preferably, the line of action LA and the virtual line segment LV2 intersect at point A or point B2. The closer the intersection of the line of action LA and the virtual line segment LV2 to the point A or the point B2, the larger the amount of expansion of the inner region of the annular transmission member 16 according to the deformation of the annular transmission member 16 by the action of the biasing force. Growth is suppressed.
　なお、内側案内部材１４と、接触部材２４とのうち一方のみが、回転しない部材に変形されてもよい。 Only one of the inner guide member 14 and the contact member 24 may be transformed into a non-rotating member.
　（変形例３）
　図６は、変形例３に係る伝達装置１０５（１０）の第１例の構成図である。 (Modification 3)
FIG. 6 is a configuration diagram of a first example of the transmission device 105 (10) according to Modification 3. As shown in FIG.
　伝達装置１０５は、第２の実施形態に係る伝達装置１０２の変形例である。伝達装置１０５は、複数の内側案内部材１４を備えるという点で、伝達装置１０２と相違する。なお、複数の内側案内部材１４のうち少なくとも１つは、内側案内部材１４１（変形例１を参照）でもよい。また、接触部材２４は、接触部材２４１（変形例２を参照）でもよい。 The transmission device 105 is a modification of the transmission device 102 according to the second embodiment. Transmission device 105 differs from transmission device 102 in that it comprises a plurality of inner guide members 14 . At least one of the plurality of inner guide members 14 may be the inner guide member 141 (see Modification 1). Also, the contact member 24 may be the contact member 241 (see Modification 2).
　付勢装置２０２は、環状伝達部材１６の移動方向（ＣＤ）に沿って、駆動用回転部材１２と、複数の内側案内部材１４と、のうちの２つと隣り合う。図６の例示において、付勢装置２０２は、駆動用回転部材１２と、１つの内側案内部材１４とに、環状伝達部材１６の移動方向で隣り合う。この場合、仮想線分ＬＶ１は、環状伝達部材１６の移動方向で隣り合う駆動用回転部材１２（点Ａ）と、１つの内側案内部材１４（点Ｂ１）とを結ぶ。 The biasing device 202 is adjacent to two of the drive rotary member 12 and the plurality of inner guide members 14 along the direction of movement (CD) of the annular transmission member 16 . In the illustration of FIG. 6 , the biasing device 202 is adjacent to the rotary drive member 12 and one inner guide member 14 in the direction of movement of the annular transmission member 16 . In this case, an imaginary line segment LV1 connects the drive rotary member 12 (point A) and one inner guide member 14 (point B1) that are adjacent in the moving direction of the annular transmission member 16 .
　図７は、変形例３に係る伝達装置１０５（１０）の第２例の構成図である。 FIG. 7 is a configuration diagram of a second example of the transmission device 105 (10) according to Modification 3. As shown in FIG.
　伝達装置１０５は、３つ以上の内側案内部材１４を備えてもよい（図７参照）。 The transmission device 105 may have three or more inner guide members 14 (see FIG. 7).
　図８は、変形例３に係る伝達装置１０５（１０）の第３例の構成図である。 FIG. 8 is a configuration diagram of a third example of the transmission device 105 (10) according to Modification 3. As shown in FIG.
　付勢装置２０２は、２つの内側案内部材１４に、環状伝達部材１６の移動方向で隣り合ってもよい。その場合、作用線ＬＡは、環状伝達部材１６の移動方向で付勢装置２０２に隣り合う２つの内側案内部材１４を結ぶ仮想線分ＬＶ３と直交すると、好ましい。 The biasing device 202 may be adjacent to the two inner guide members 14 in the direction of movement of the annular transmission member 16 . In that case, the line of action LA is preferably orthogonal to the imaginary line segment LV3 connecting two inner guide members 14 adjacent to the biasing device 202 in the moving direction of the annular transmission member 16 .
　［実施形態から得られる発明］
　以下には、上記実施形態および変形例から把握しうる発明が記載される。 [Invention obtained from the embodiment]
Inventions that can be grasped from the above embodiments and modifications will be described below.
　一発明は、駆動用回転部材（１２）と、案内部材（１４）と、前記駆動用回転部材と前記案内部材とに巻き掛けられた環状伝達部材（１６）とを有する伝達装置（１０）であって、前記環状伝達部材の内側に配置され、前記環状伝達部材の外側に向けて前記環状伝達部材を付勢することで、前記環状伝達部材に張力を付与する付勢装置（２０）を備える、伝達装置である。 One invention is a transmission device (10) having a drive rotation member (12), a guide member (14), and an annular transmission member (16) wound around the drive rotation member and the guide member. an urging device (20) disposed inside the annular transmission member for applying tension to the annular transmission member by urging the annular transmission member toward the outside of the annular transmission member. , is the transmission device.
　これにより、環状伝達部材を付勢して環状伝達部材に張力を付与する付勢装置と、複数のアタッチメントと、の干渉を防止することができる。 Thereby, it is possible to prevent interference between the urging device that urges the annular transmission member to apply tension to the annular transmission member and the plurality of attachments.
　前記伝達装置は、前記環状伝達部材の内側に配置され、前記環状伝達部材に接触する接触部材（２４）をさらに備え、前記付勢装置は、前記接触部材を付勢することで、前記接触部材を介して前記環状伝達部材を付勢してもよい。これにより、駆動用回転部材と案内部材との並び方向以外の方向に、環状伝達部材を付勢することができる。 The transmission device further includes a contact member (24) disposed inside the annular transmission member and in contact with the annular transmission member, and the biasing device biases the contact member to may bias the annular transmission member via Thereby, the annular transmission member can be urged in a direction other than the direction in which the drive rotation member and the guide member are arranged.
　前記案内部材の数は、単数であり、前記案内部材は、前記環状伝達部材の移動に応じて回転軸（Ｂ１）を中心に回転する従動用回転部材であり、前記付勢装置が前記接触部材を付勢する力の作用線（ＬＡ）は、前記駆動用回転部材の回転軸（Ａ）または前記従動用回転部材の回転軸（Ｂ１）を通り、且つ前記駆動用回転部材と、前記従動用回転部材と、を結ぶ仮想線分（ＬＶ１、ＬＶ２）と直交してもよい。これにより、環状伝達部材が付勢力の作用で変形することに応じた環状伝達部材の内側の領域の拡大量の増加が、抑制される。 The number of the guide member is singular, the guide member is a driven rotary member that rotates about a rotary shaft (B1) in accordance with the movement of the annular transmission member, and the biasing device is the contact member. The line of action (LA) of the force for urging passes through the rotating shaft (A) of the driving rotating member or the rotating shaft (B1) of the driven rotating member, and the driving rotating member and the driven rotating member It may be orthogonal to the imaginary line segment (LV1, LV2) connecting the rotary member. This suppresses an increase in the expansion amount of the inner region of the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
　前記案内部材の数は、単数であり、前記案内部材は、前記環状伝達部材が摺動する曲面（２６１）を有し、前記付勢装置が前記接触部材を付勢する力の作用線（ＬＡ）は、前記駆動用回転部材の回転軸（Ａ）または前記曲面の曲率中心（Ｂ２）を通り、且つ前記駆動用回転部材と、前記案内部材と、を結ぶ仮想線分（ＬＶ１、ＬＶ２）と直交してもよい。これにより、環状伝達部材が付勢力の作用で変形することに応じた環状伝達部材の内側の領域の拡大量の増加が、抑制される。 The number of the guide member is singular, the guide member has a curved surface (261) on which the annular transmission member slides, and the line of action (LA ) is an imaginary line segment (LV1, LV2) passing through the rotation axis (A) of the driving rotation member or the center of curvature (B2) of the curved surface and connecting the driving rotation member and the guide member; may be orthogonal. This suppresses an increase in the expansion amount of the inner region of the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
　前記案内部材の数は、複数であり、前記付勢装置が前記接触部材を付勢する力の作用線（ＬＡ）は、前記駆動用回転部材と、前記環状伝達部材の移動方向で前記接触部材に隣り合う前記案内部材と、を結ぶ仮想線分（ＬＶ１、ＬＶ２）と直交してもよい。これにより、環状伝達部材が付勢力の作用で変形することに応じた環状伝達部材の内側の領域の拡大量の増加が、抑制される。 The number of the guide members is plural, and the line of action (LA) of the force with which the biasing device biases the contact member is the driving rotary member and the contact member in the moving direction of the annular transmission member. may be orthogonal to the virtual line segments (LV1, LV2) connecting the guide members adjacent to the . This suppresses an increase in the expansion amount of the inner region of the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
　前記移動方向で前記接触部材に隣り合う前記案内部材は、前記環状伝達部材の移動に応じて回転軸（Ｂ１）を中心に回転する従動用回転部材であり、前記仮想線分は、前記駆動用回転部材の回転軸（Ａ）と、前記移動方向で前記接触部材に隣り合う前記従動用回転部材の前記回転軸（Ｂ１）と、を結んでもよい。これにより、駆動用回転部材または案内部材から環状伝達部材が外れることが防止される。また、これにより、環状伝達部材が付勢力の作用で変形することに応じた環状伝達部材の内側の領域の拡大量の増加が、抑制される。 The guide member adjacent to the contact member in the moving direction is a driven rotary member that rotates about a rotary shaft (B1) in accordance with the movement of the annular transmission member, and the virtual line segment is the driving member. The rotating shaft (A) of the rotating member may be connected to the rotating shaft (B1) of the driven rotating member adjacent to the contact member in the moving direction. This prevents the annular transmission member from coming off from the driving rotation member or the guide member. Further, this suppresses an increase in the expansion amount of the region inside the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
　前記移動方向で前記接触部材に隣り合う前記案内部材は、前記環状伝達部材が摺動する曲面（２６１）を有し、前記仮想線分は、前記駆動用回転部材の回転軸（Ａ）と、前記曲面の曲率中心（Ｂ２）とを結んでもよい。これにより、駆動用回転部材または案内部材から環状伝達部材が外れることが防止される。また、これにより、環状伝達部材が付勢力の作用で変形することに応じた環状伝達部材の内側の領域の拡大量の増加が、抑制される。 The guide member adjacent to the contact member in the movement direction has a curved surface (261) on which the annular transmission member slides, and the imaginary line segment is the rotation axis (A) of the drive rotation member, You may connect with the curvature center (B2) of the said curved surface. This prevents the annular transmission member from coming off from the driving rotation member or the guide member. Further, this suppresses an increase in the expansion amount of the region inside the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
　前記案内部材の数は、複数であり、前記付勢装置が前記接触部材を付勢する力の作用線（ＬＡ）は、前記環状伝達部材の移動方向で前記接触部材に隣り合う２つの前記案内部材を結ぶ仮想線分（ＬＶ３）と直交してもよい。これにより、環状伝達部材が付勢力の作用で変形することに応じた環状伝達部材の内側の領域の拡大量の増加が、抑制される。 The number of the guide members is plural, and the line of action (LA) of the force with which the biasing device biases the contact member is two of the guide members adjacent to the contact member in the moving direction of the annular transmission member. It may be orthogonal to the virtual line segment (LV3) connecting the members. This suppresses an increase in the expansion amount of the inner region of the annular transmission member due to the deformation of the annular transmission member due to the action of the biasing force.
　前記付勢装置は、前記案内部材を付勢することで、前記案内部材を介して前記環状伝達部材を付勢してもよい。これにより、駆動用回転部材側の巻き付け角度と、案内部材側の巻き付け角度との各々が変化することを抑制しつつ、環状伝達部材に張力を付加することができる。 The biasing device may bias the annular transmission member via the guide member by biasing the guide member. As a result, it is possible to apply tension to the annular transmission member while suppressing changes in the winding angle on the drive rotation member side and the winding angle on the guide member side.
　前記付勢装置は、前記駆動用回転部材と前記案内部材との並び方向に前記案内部材を付勢してもよい。これにより、駆動用回転部材側の巻き付け角度と、案内部材側の巻き付け角度との各々の変化を最低限にしつつ、環状伝達部材に張力を付加することができる。 The urging device may urge the guide member in the direction in which the drive rotary member and the guide member are arranged. As a result, it is possible to apply tension to the annular transmission member while minimizing changes in the winding angle on the drive rotation member side and the winding angle on the guide member side.
　前記案内部材は、前記環状伝達部材の移動に応じて回転する従動用回転部材であり、前記環状伝達部材を付勢する力の方向は、前記駆動用回転部材の回転軸（Ａ）と、前記従動用回転部材の回転軸（Ｂ１）とを結ぶ仮想線分（ＬＶ１）と平行でもよい。これにより、駆動用回転部材側の巻き付け角度と、案内部材側の巻き付け角度との各々の変化を、ほぼなくしつつ、環状伝達部材に張力を付加することができる。 The guide member is a driven rotary member that rotates according to the movement of the annular transmission member. It may be parallel to the imaginary line segment (LV1) connecting the rotating shaft (B1) of the driven rotating member. As a result, it is possible to apply tension to the annular transmission member while substantially eliminating variations in the winding angle on the drive rotation member side and the winding angle on the guide member side.
　前記案内部材は、前記環状伝達部材が摺動する曲面（２６１）を有し、前記環状伝達部材を付勢する力の方向は、前記駆動用回転部材の回転軸（Ａ）と、前記案内部材の前記曲面の曲率中心（Ｂ２）とを結ぶ仮想線分（ＬＶ２）と平行でもよい。これにより、駆動用回転部材側の巻き付け角度と、案内部材側の巻き付け角度との各々の変化を、ほぼなくすことができる。 The guide member has a curved surface (261) on which the annular transmission member slides. may be parallel to the virtual line segment (LV2) connecting the center of curvature (B2) of the curved surface. As a result, it is possible to substantially eliminate the variation in the winding angle on the drive rotary member side and the winding angle on the guide member side.
　前記伝達装置は、前記環状伝達部材のうち外側に設置され、工作機械用の複数の工具を着脱可能に保持する複数のアタッチメント（１８）をさらに備えてもよい。これにより、例えば、工作機械用のマガジンとして伝達装置を利用することができる。 The transmission device may further include a plurality of attachments (18) installed outside the annular transmission member and detachably holding a plurality of tools for machine tools. This makes it possible, for example, to use the transmission as a magazine for machine tools.
　前記伝達装置は、前記環状伝達部材の外側に設置され、前記環状伝達部材の移動経路に沿って複数の前記アタッチメントを案内する外側案内部材（２２）をさらに備え、前記外側案内部材は、前記環状伝達部材のうち、前記環状伝達部材を付勢する力の作用点（ＰＡ）を含む一部に沿って設けられ、前記環状伝達部材を付勢する前記力に応じて変位する第１外側案内部（２２１）と、前記第１外側案内部とは分離され、前記環状伝達部材のうち、前記作用点を含む前記一部以外の部分に沿って設置される第２外側案内部（２２２）と、を有してもよい。これにより、複数のアタッチメントを安定した状態で移動させつつ、環状伝達部材の弛みを低減することができる。 The transmission device further includes an outer guide member (22) installed outside the annular transmission member and guiding the plurality of attachments along a movement path of the annular transmission member, the outer guide member A first outer guide portion provided along a portion of the transmission member including a point of action (PA) of a force biasing the annular transmission member and displaced according to the force biasing the annular transmission member. (221) and a second outer guide portion (222) separated from the first outer guide portion and installed along a portion of the annular transmission member other than the portion including the point of action; may have This makes it possible to reduce slack in the annular transmission member while moving the plurality of attachments in a stable state.
１０（１０１～１０５）…伝達装置　　　　１２…駆動用回転部材
１４、１４１…内側案内部材（案内部材）　１６…環状伝達部材
１８…アタッチメント
２０（２０１、２０２）…付勢装置　　　　２２…外側案内部材
２４（２４１）…接触部材　　　　　　　　２２１…第１外側案内部
２２２…第２外側案内部　　　　　　　　　２６１…案内部材の曲面
Ａ…駆動用回転部材の回転軸　　　　　　　Ｂ１…案内部材の回転軸
Ｂ２…案内部材の曲率中心　　　　　　　　ＬＡ…作用線
ＬＶ１、ＬＶ２、ＬＶ３…仮想線分　　　　ＰＡ…作用点 DESCRIPTION OF SYMBOLS 10 (101-105)... Transmission device 12... Rotation member 14, 141... Inner guide member (guide member) for driving 16... Annular transmission member 18... Attachment 20 (201, 202)... Biasing device 22... Outer guide member 24 (241)... Contact member 221... First outer guide part 222... Second outer guide part 261... Curved surface of guide member A... Rotational axis of rotating member for driving B1... Rotational axis of guide member B2... Curvature center of guide member LA … Lines of action LV1, LV2, LV3 … Virtual line segment PA … Point of action

Claims (15)

  1. 　駆動用回転部材（１２）と、案内部材（１４）と、前記駆動用回転部材と前記案内部材とに巻き掛けられた環状伝達部材（１６）とを有する伝達装置（１０）であって、
    　前記環状伝達部材の内側に配置され、前記環状伝達部材の外側に向けて前記環状伝達部材を付勢することで、前記環状伝達部材に張力を付与する付勢装置（２０）を備える、伝達装置。     A transmission device (10) having a driving rotation member (12), a guide member (14), and an annular transmission member (16) wound around the driving rotation member and the guide member,
    A transmission device comprising a biasing device (20) disposed inside the annular transmission member and applying tension to the annular transmission member by urging the annular transmission member toward the outside of the annular transmission member. .
  2. 　請求項１に記載の伝達装置であって、
    　前記環状伝達部材の内側に配置され、前記環状伝達部材に接触する接触部材（２４）をさらに備え、
    　前記付勢装置は、前記接触部材を付勢することで、前記接触部材を介して前記環状伝達部材を付勢する、伝達装置。     A transmission device according to claim 1, wherein
    further comprising a contact member (24) disposed inside the annular transmission member and in contact with the annular transmission member;
    The biasing device biases the annular transmission member via the contact member by biasing the contact member.
  3. 　請求項２に記載の伝達装置であって、
    　前記案内部材の数は、単数であり、
    　前記案内部材は、前記環状伝達部材の移動に応じて回転軸（Ｂ１）を中心に回転する従動用回転部材であり、
    　前記付勢装置が前記接触部材を付勢する力の作用線（ＬＡ）は、前記駆動用回転部材の回転軸（Ａ）または前記従動用回転部材の回転軸（Ｂ１）を通り、且つ前記駆動用回転部材と、前記従動用回転部材と、を結ぶ仮想線分（ＬＶ１、ＬＶ２）と直交する、伝達装置。     A transmission device according to claim 2, wherein
    the number of the guide members is singular,
    The guide member is a driven rotary member that rotates around a rotary shaft (B1) in accordance with the movement of the annular transmission member,
    The line of action (LA) of the force with which the biasing device biases the contact member passes through the rotation axis (A) of the drive rotation member or the rotation axis (B1) of the driven rotation member, a transmission device that is perpendicular to a virtual line segment (LV1, LV2) connecting the rotation member for driving and the rotation member for driven.
  4. 　請求項２に記載の伝達装置であって、
    　前記案内部材の数は、単数であり、
    　前記案内部材は、前記環状伝達部材が摺動する曲面（２６１）を有し、
    　前記付勢装置が前記接触部材を付勢する力の作用線（ＬＡ）は、前記駆動用回転部材の回転軸（Ａ）または前記曲面の曲率中心（Ｂ２）を通り、且つ前記駆動用回転部材と、前記案内部材と、を結ぶ仮想線分（ＬＶ１、ＬＶ２）と直交する、伝達装置。     A transmission device according to claim 2, wherein
    the number of the guide members is singular,
    The guide member has a curved surface (261) on which the annular transmission member slides,
    The line of action (LA) of the force with which the biasing device biases the contact member passes through the rotation axis (A) of the driving rotation member or the center of curvature (B2) of the curved surface, and the driving rotation member. and the guide member.
  5. 　請求項２に記載の伝達装置であって、
    　前記案内部材の数は、複数であり、
    　前記付勢装置が前記接触部材を付勢する力の作用線（ＬＡ）は、前記駆動用回転部材と、前記環状伝達部材の移動方向で前記接触部材に隣り合う前記案内部材と、を結ぶ仮想線分（ＬＶ１、ＬＶ２）と直交する、伝達装置。     A transmission device according to claim 2, wherein
    The number of the guide members is plural,
    An imaginary line of action (LA) of the force with which the biasing device biases the contact member connects the driving rotary member and the guide member adjacent to the contact member in the moving direction of the annular transmission member. Transmitters orthogonal to line segments (LV1, LV2).
  6. 　請求項５に記載の伝達装置であって、
    　前記移動方向で前記接触部材に隣り合う前記案内部材は、前記環状伝達部材の移動に応じて回転軸（Ｂ１）を中心に回転する従動用回転部材であり、
    　前記仮想線分は、前記駆動用回転部材の回転軸（Ａ）と、前記移動方向で前記接触部材に隣り合う前記従動用回転部材の前記回転軸と、を結ぶ、伝達装置。     A transmission device according to claim 5, wherein
    the guide member adjacent to the contact member in the moving direction is a driven rotary member that rotates about a rotary shaft (B1) in accordance with the movement of the annular transmission member;
    The transmission device, wherein the virtual line segment connects the rotation axis (A) of the drive rotation member and the rotation axis of the driven rotation member adjacent to the contact member in the movement direction.
  7. 　請求項５に記載の伝達装置であって、
    　前記移動方向で前記接触部材に隣り合う前記案内部材は、前記環状伝達部材が摺動する曲面（２６１）を有し、
    　前記仮想線分は、前記駆動用回転部材の回転軸（Ａ）と、前記曲面の曲率中心（Ｂ２）とを結ぶ、伝達装置。     A transmission device according to claim 5, wherein
    the guide member adjacent to the contact member in the movement direction has a curved surface (261) on which the annular transmission member slides;
    The transmission device, wherein the virtual line segment connects the rotation axis (A) of the driving rotation member and the center of curvature (B2) of the curved surface.
  8. 　請求項２に記載の伝達装置であって、
    　前記案内部材の数は、複数であり、
    　前記付勢装置が前記接触部材を付勢する力の作用線（ＬＡ）は、前記環状伝達部材の移動方向で前記接触部材に隣り合う２つの前記案内部材を結ぶ仮想線分（ＬＶ３）と直交する、伝達装置。     A transmission device according to claim 2, wherein
    The number of the guide members is plural,
    The line of action (LA) of the force with which the biasing device biases the contact member is orthogonal to the virtual line segment (LV3) connecting the two guide members adjacent to the contact member in the movement direction of the annular transmission member. Do, transmission device.
  9. 　請求項１に記載の伝達装置であって、
    　前記付勢装置は、前記案内部材を付勢することで、前記案内部材を介して前記環状伝達部材を付勢する、伝達装置。     A transmission device according to claim 1, wherein
    The biasing device biases the annular transmission member via the guide member by biasing the guide member.
  10. 　請求項９に記載の伝達装置であって、
    　前記付勢装置は、前記駆動用回転部材と前記案内部材との並び方向に前記案内部材を付勢する、伝達装置。     A transmission device according to claim 9,
    The urging device is a transmission device, wherein the urging device urges the guide member in a direction in which the driving rotary member and the guide member are arranged.
  11. 　請求項１０に記載の伝達装置であって、
    　前記案内部材は、前記環状伝達部材の移動に応じて回転する従動用回転部材であり、
    　前記環状伝達部材を付勢する力の方向は、前記駆動用回転部材の回転軸（Ａ）と、前記従動用回転部材の回転軸（Ｂ１）とを結ぶ仮想線分（ＬＶ１）と平行である、伝達装置。     11. A transmission device according to claim 10, comprising:
    the guide member is a driven rotary member that rotates according to the movement of the annular transmission member;
    The direction of the force urging the annular transmission member is parallel to an imaginary line segment (LV1) connecting the rotation axis (A) of the drive rotation member and the rotation axis (B1) of the driven rotation member. , transmission device.
  12. 　請求項１０に記載の伝達装置であって、
    　前記案内部材は、前記環状伝達部材が摺動する曲面（２６１）を有し、
    　前記環状伝達部材を付勢する力の方向は、前記駆動用回転部材の回転軸（Ａ）と、前記案内部材の前記曲面の曲率中心（Ｂ２）とを結ぶ仮想線分（ＬＶ２）と平行である、伝達装置。     11. A transmission device according to claim 10, comprising:
    The guide member has a curved surface (261) on which the annular transmission member slides,
    The direction of the force urging the annular transmission member is parallel to an imaginary line segment (LV2) connecting the rotation axis (A) of the driving rotation member and the center of curvature (B2) of the curved surface of the guide member. There is a transmission device.
  13. 　請求項１～８のいずれか１項に記載の伝達装置であって、
    　前記環状伝達部材のうち外側に設置され、工作機械用の複数の工具を着脱可能に保持する複数のアタッチメント（１８）をさらに備える、伝達装置。     A transmission device according to any one of claims 1 to 8,
    A transmission device, further comprising a plurality of attachments (18) installed outside the annular transmission member and detachably holding a plurality of tools for a machine tool.
  14. 　請求項９～１２のいずれか１項に記載の伝達装置であって、
    　前記環状伝達部材のうち外側に設置され、工作機械用の複数の工具を着脱可能に保持する複数のアタッチメント（１８）をさらに備える、伝達装置。     The transmission device according to any one of claims 9 to 12,
    A transmission device, further comprising a plurality of attachments (18) installed outside the annular transmission member and detachably holding a plurality of tools for a machine tool.
  15. 　請求項１４に記載の伝達装置であって、
    　前記環状伝達部材の外側に設置され、前記環状伝達部材の移動経路に沿って複数の前記アタッチメントを案内する外側案内部材（２２）をさらに備え、
    　前記外側案内部材は、
    　前記環状伝達部材のうち、前記環状伝達部材を付勢する力の作用点（ＰＡ）を含む一部に沿って設けられ、前記環状伝達部材を付勢する前記力に応じて変位する第１外側案内部（２２１）と、
    　前記第１外側案内部とは分離され、前記環状伝達部材のうち、前記作用点を含む前記一部以外の部分に沿って設置される第２外側案内部（２２２）と、
    　を有する、伝達装置。     15. A transmission device according to claim 14, comprising:
    further comprising an outer guide member (22) installed outside the annular transmission member and guiding the plurality of attachments along the movement path of the annular transmission member;
    The outer guide member is
    A first outer side provided along a portion of the annular transmission member including a point of action (PA) of a force biasing the annular transmission member and displaced according to the force biasing the annular transmission member a guide section (221);
    a second outer guide portion (222) separated from the first outer guide portion and installed along a portion of the annular transmission member other than the portion including the point of action;
    A transmission device.
PCT/JP2022/006963 2022-02-21 2022-02-21 Transmitting device WO2023157300A1 (en)

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PCT/JP2022/006963 WO2023157300A1 (en) 2022-02-21 2022-02-21 Transmitting device
TW112106034A TW202334015A (en) 2022-02-21 2023-02-20 Transmitting device

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PCT/JP2022/006963 WO2023157300A1 (en) 2022-02-21 2022-02-21 Transmitting device

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5849054U (en) * 1981-09-30 1983-04-02 富士通株式会社 tension mechanism
JP2006227227A (en) * 2005-02-17 2006-08-31 Oki Data Corp Image forming apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5849054U (en) * 1981-09-30 1983-04-02 富士通株式会社 tension mechanism
JP2006227227A (en) * 2005-02-17 2006-08-31 Oki Data Corp Image forming apparatus

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