JP2021014862A - Torque limiter assembly method - Google Patents

Abstract

To provide a novel torque limiter that can be readily assembled.SOLUTION: A torque limiter assembly method includes a step of press-fitting a thin sheet-like connection substrate including multiple extension piece parts extending outward in a radial direction from an outer peripheral surface of a central part into an outer race 6 together with an inner race 4 so as to form a connection member 8.SELECTED DRAWING: Figure 1

Description

本発明は、相対的に回転可能な内輪及び外輪と、両者の間に配置される接続部材とを備え、内輪と外輪とを相対的に回転させる回転トルクが所定値より大きいと、接続部材による摩擦力に打ち勝って外輪と内輪とが相対的に回転するトルクリミッタの組立方法に関するものである。 The present invention includes an inner ring and an outer ring that are relatively rotatable, and a connecting member arranged between them. When the rotational torque for relatively rotating the inner ring and the outer ring is larger than a predetermined value, the connecting member is used. It relates to a method of assembling a torque limiter in which an outer ring and an inner ring rotate relative to each other by overcoming a frictional force.

下記特許文献１には、トレランスリングを利用したトルクリミッタが開示されている。トレランスリングは断面略Ｃ字状の帯状薄板弾性片であって、これが軸状の内輪の外周面と内輪が挿通される外輪の内周面との間に圧入されることで、内輪と外輪との間に所定の摩擦力を付与するものである。トレランスリングを利用したトルクリミッタにあっては、外輪と内輪とを相対的に回転させる中心軸周りの回転トルクが付加されたときは、回転トルクが所定値より大きい場合に、トレランスリングと内輪の外周面との間の摩擦力或いはトレランスリングと外輪の内周面との間の摩擦力に打ち勝って外輪と内輪とが相対的に回転する。 The following Patent Document 1 discloses a torque limiter using a tolerance ring. The tolerance ring is a strip-shaped thin plate elastic piece having a substantially C-shaped cross section, and is press-fitted between the outer peripheral surface of the shaft-shaped inner ring and the inner peripheral surface of the outer ring through which the inner ring is inserted to form an inner ring and an outer ring. A predetermined frictional force is applied between the two. In the torque limiter using the tolerance ring, when the rotation torque around the central axis that relatively rotates the outer ring and the inner ring is added, when the rotation torque is larger than the predetermined value, the tolerance ring and the inner ring The outer ring and the inner ring rotate relatively by overcoming the frictional force between the outer peripheral surface or the friction force between the tolerance ring and the inner peripheral surface of the outer ring.

通常、トレランスリングは帯状の薄板材を長手方向に丸めてＣ字状にすることで形成される。そして、トレランスリングを利用したトルクリミッタは、外輪とトレランスリングとを組み合わせた後に、内輪をトレランスリングの内側に圧入することで組み立てられる。 Usually, the tolerance ring is formed by rolling a strip-shaped thin plate material in the longitudinal direction into a C shape. Then, the torque limiter using the tolerance ring is assembled by combining the outer ring and the tolerance ring and then press-fitting the inner ring into the inside of the tolerance ring.

一方、下記特許文献２には、内輪と、前記内輪が挿通される外輪と、前記内輪及び前記外輪の間に配置される接続部材とを具備し、前記内輪と前記外輪と前記接続部材とは共通の中心軸を有し、前記接続部材は、前記内輪の端面と軸方向に対向する端板と、前記端板の外周縁から軸方向に起立する複数個の起立壁とを含み、前記起立壁の夫々は周方向に間隔をおいて設けられ、前記起立壁の内周面は前記内輪の外周面と、前記起立壁の外周面は前記外輪の内周面と夫々密接し、前記外輪と前記内輪とを相対的に回転させる前記中心軸周りの回転トルクが付加されたときは、前記回転トルクが所定値より大きい場合に、前記起立壁の内周面と前記内輪の外周面との間の摩擦力或いは前記起立壁の外周面と前記外輪の内周面との間の摩擦力に打ち勝って前記外輪と前記内輪とが相対的に回転するトルクリミッタが開示されている。以下の説明においては、上記回転トルクの所定値のことを「滑りトルク値」という場合もある。 On the other hand, the following Patent Document 2 includes an inner ring, an outer ring through which the inner ring is inserted, and a connecting member arranged between the inner ring and the outer ring, and the inner ring, the outer ring, and the connecting member are described. The connecting member has a common central axis, and includes an end plate that faces the end face of the inner ring in the axial direction and a plurality of upright walls that erect in the axial direction from the outer peripheral edge of the end plate. The walls are provided at intervals in the circumferential direction, and the inner peripheral surface of the standing wall is in close contact with the outer peripheral surface of the inner ring, and the outer peripheral surface of the standing wall is in close contact with the inner peripheral surface of the outer ring. When a rotational torque around the central axis that relatively rotates the inner ring is applied, when the rotational torque is larger than a predetermined value, between the inner peripheral surface of the upright wall and the outer peripheral surface of the inner ring. A torque limiter is disclosed in which the outer ring and the inner ring rotate relative to each other by overcoming the frictional force of the above or the frictional force between the outer peripheral surface of the upright wall and the inner peripheral surface of the outer ring. In the following description, the predetermined value of the rotational torque may be referred to as a "sliding torque value".

特許文献２で開示されたトルクリミッタを組み立てる際には、最初に、中央部と、中央部の外周面から径方向外方に延びる複数の延出片部とを含む薄板状の接続基材を成形し、かかる接続基材の延出片部の夫々を各別に折り曲げて中央部に対して起立させて起立壁とすることで接続部材を形成する。その後に、上記接続部材と、外輪及び内輪と組み合わせる。接続部材と外輪とは切欠きと溝との係合によって相対回転不能となり、接続部材の起立壁の内周面が内輪の外周面と密接する。 When assembling the torque limiter disclosed in Patent Document 2, first, a thin plate-shaped connecting base material including a central portion and a plurality of extending pieces extending radially outward from the outer peripheral surface of the central portion is formed. A connecting member is formed by molding and bending each of the extending pieces of the connecting base material to stand up against the central portion to form an upright wall. After that, the connecting member is combined with the outer ring and the inner ring. The connecting member and the outer ring cannot rotate relative to each other due to the engagement between the notch and the groove, and the inner peripheral surface of the upright wall of the connecting member comes into close contact with the outer peripheral surface of the inner ring.

特開２００８−３８９９０号公報Japanese Unexamined Patent Publication No. 2008-38990 特開２０１５−２０９８６９号公報JP 2015-209869

上述した特許文献１で開示されたトルクリミッタにあっては、第一に、トレランスリングを形成する工程が極めて煩雑である。上述したとおり、トレランスリングは帯状の薄板材を長手方向に丸めてＣ字状にすることによって形成されるが、帯状の薄板材を所要径にするには、帯状の薄板材を３６０度以上に巻回して所謂曲げくせをつける必要があり、かかる加工は煩雑である。第二に、外輪の内側に内輪を圧入する前に、予めトレランスリングを外輪の内側に配置しておく必要があり、かかる工程も煩雑である。 In the torque limiter disclosed in Patent Document 1 described above, firstly, the step of forming the tolerance ring is extremely complicated. As described above, the tolerance ring is formed by rolling the strip-shaped thin plate in the longitudinal direction into a C shape, but in order to make the strip-shaped thin plate the required diameter, the strip-shaped thin plate should be 360 degrees or more. It is necessary to wind it to give it a so-called bending habit, and such processing is complicated. Secondly, before the inner ring is press-fitted into the inner ring, it is necessary to arrange the tolerance ring inside the outer ring in advance, and such a process is complicated.

上述した特許文献２で開示されたトルクリミッタにあっては、接続基材に設けられた複数の延出片部の夫々を各別に起立せしめて予め接続部材を形成した後に、接続部材を内輪及び外輪と組み合わせる。しかしながら、接続基材に設けられた複数の延出片部の夫々を起立せしめる作業及び、弾性体である接続部材を内輪及び外輪と組み合わせる作業は煩雑である。更に、接続部材と外輪とは切欠きと溝との係合によって相対回転不能に結合されるため、両者の位置合わせもする必要があり、かかる作業も煩雑である。 In the torque limiter disclosed in Patent Document 2 described above, after each of the plurality of extending pieces provided on the connecting base material is erected separately to form a connecting member in advance, the connecting member is attached to the inner ring and the connecting member. Combine with the outer ring. However, the work of erecting each of the plurality of extending pieces provided on the connecting base material and the work of combining the connecting member, which is an elastic body, with the inner ring and the outer ring are complicated. Further, since the connecting member and the outer ring are connected to each other so as not to rotate relative to each other by the engagement between the notch and the groove, it is necessary to align the two, and such work is complicated.

本発明は上記内容に鑑みてなされたものであり、その主たる技術的課題は、組立容易な新規のトルクリミッタを提供することである。 The present invention has been made in view of the above contents, and its main technical problem is to provide a new torque limiter that is easy to assemble.

本発明者は、鋭意検討の結果、中央部の外周面から径方向外方に延びる複数の延出片部を備えた薄板状の接続基材を内輪と共に外輪の内側に圧入することで接続部材が形成されるようにすることで、上記主たる技術的課題が解決されることを見出した。 As a result of diligent studies, the present inventor has made a connecting member by press-fitting a thin plate-shaped connecting base material having a plurality of extending pieces extending radially outward from the outer peripheral surface of the central portion into the inner ring together with the inner ring. It was found that the above-mentioned main technical problems can be solved by forming the above-mentioned.

即ち、本発明によれば、上記主たる技術的課題を達成するトルクリミッタの組立方法として、軸状の内輪と、前記内輪が挿通される外輪と、前記内輪及び前記外輪の間に配置される接続部材とを具備し、
前記内輪と前記外輪と前記接続部材とは共通の中心軸を有し、
前記接続部材は、前記内輪の端面と軸方向に対向する端板と、前記端板の外周縁から軸方向に起立する複数個の起立壁とを含み、
前記起立壁の夫々は周方向に並列して設けられ、前記起立壁の内周面は前記内輪の外周面と、前記起立壁の外周面は前記外輪の内周面と夫々密接し、
前記外輪と前記内輪とを相対的に回転させる前記中心軸周りの回転トルクが付加されたときは、前記回転トルクが所定値より大きい場合に、前記起立壁の内周面と前記内輪の外周面との間の摩擦力或いは前記起立壁の外周面と前記外輪の内周面との間の摩擦力に打ち勝って前記外輪と前記内輪とが相対的に回転するトルクリミッタの組立方法であって、
中央部と、前記中央部の外周面から径方向外方に延びる複数の延出片部とを含む薄板状の接続基材を形成し、
前記共通の中心軸上において軸方向に間隔をおいて配置された前記内輪と前記外輪との間に、前記接続基材を前記共通の中心軸と同軸上に配置し、
前記内輪の端面を前記接続基材の前記中央部に押し当てて、前記内輪を前記接続基材と共に前記外輪の内側に圧入することで、前記接続基材の前記延出片部が前記中央部に対し起立して前記接続部材が形成される、ことを特徴とするトルクリミッタの組立方法が提供される。 That is, according to the present invention, as a method of assembling a torque limiter that achieves the above-mentioned main technical problem, a shaft-shaped inner ring, an outer ring through which the inner ring is inserted, and a connection arranged between the inner ring and the outer ring. Equipped with members
The inner ring, the outer ring, and the connecting member have a common central axis.
The connecting member includes an end plate that faces the end surface of the inner ring in the axial direction, and a plurality of upright walls that rise in the axial direction from the outer peripheral edge of the end plate.
Each of the upright walls is provided in parallel in the circumferential direction, and the inner peripheral surface of the upright wall is in close contact with the outer peripheral surface of the inner ring and the outer peripheral surface of the upright wall is in close contact with the inner peripheral surface of the outer ring.
When a rotational torque around the central axis that relatively rotates the outer ring and the inner ring is applied, the inner peripheral surface of the upright wall and the outer peripheral surface of the inner ring are found when the rotational torque is larger than a predetermined value. A method of assembling a torque limiter in which the outer ring and the inner ring rotate relative to each other by overcoming the frictional force between the two and the outer peripheral surface of the upright wall and the inner peripheral surface of the outer ring.
A thin plate-shaped connecting base material including a central portion and a plurality of extending pieces extending radially outward from the outer peripheral surface of the central portion is formed.
The connecting base material is arranged coaxially with the common central axis between the inner ring and the outer ring arranged at intervals in the axial direction on the common central axis.
By pressing the end surface of the inner ring against the central portion of the connecting base material and pressing the inner ring together with the connecting base material into the inside of the outer ring, the extending piece portion of the connecting base material becomes the central portion. Provided is a method for assembling a torque limiter, which comprises standing up to form the connecting member.

好ましくは、前記外輪が上下方向に挿入可能な挿入孔と、上面において前記挿入孔を囲繞し、前記挿入孔と同一の中心を有する円環形状の位置決め突条とを具備した治具を備え、前記接続基材に設けられた複数の前記延出片部の外周縁の夫々は共通の仮想円の一部であって前記仮想円の中心は前記接続基材の中心と合致すると共に、前記仮想円の外径は前記位置決め突条の内径と対応し、前記外輪は前記治具の前記外輪挿入孔に挿入され、前記接続基材は前記位置決め突条の内側において前記治具の上面に載置された状態で、前記接続基材の前記中央部は前記内輪の端面に押し当てられる。この場合には、前記接続基材が前記治具の上面に載置された状態にあっては、前記接続基材と前記外輪とは軸方向に離隔しているのが好適である。前記起立壁の周方向側面には、周方向に突出する支持片が設けられており、前記支持片が周方向に隣接する前記起立壁と近接乃至当接するのがよい。この場合には、前記支持片は前記起立壁の延出端部に設けられているのが好都合である。さらに、前記支持片は全ての前記起立壁に設けられており、いずれの前記支持片も周方向片側に突出しているのがよい。前記起立壁の内周面には、径方向内側に突出し前記内輪の外周面と密接する突出部が形成されているのが好適である。この場合には、前記突出部は軸方向に延在し、断面は円弧形状の突条であるのがよい。好適には、前記外輪は、前記接続部材の前記端板と軸方向に対向する端壁を備えており、前記接続部材の前記端板は、前記内輪の前記端面と前記外輪の前記端壁とによって挟持されている。 Preferably, the jig is provided with an insertion hole into which the outer ring can be inserted in the vertical direction, and a ring-shaped positioning ridge that surrounds the insertion hole on the upper surface and has the same center as the insertion hole. Each of the outer peripheral edges of the plurality of extending pieces provided on the connecting base material is a part of a common virtual circle, and the center of the virtual circle coincides with the center of the connecting base material, and the virtual circle is formed. The outer diameter of the circle corresponds to the inner diameter of the positioning ridge, the outer ring is inserted into the outer ring insertion hole of the jig, and the connecting base material is placed on the upper surface of the jig inside the positioning ridge. In this state, the central portion of the connecting base material is pressed against the end face of the inner ring. In this case, when the connecting base material is placed on the upper surface of the jig, it is preferable that the connecting base material and the outer ring are axially separated from each other. A support piece projecting in the circumferential direction is provided on the circumferential side surface of the upright wall, and the support piece is preferably in close proximity to or in contact with the upright wall adjacent in the circumferential direction. In this case, it is convenient that the support piece is provided at the extending end of the upright wall. Further, the support pieces are provided on all the upright walls, and it is preferable that all the support pieces project to one side in the circumferential direction. It is preferable that the inner peripheral surface of the upright wall is formed with a protruding portion that projects inward in the radial direction and is in close contact with the outer peripheral surface of the inner ring. In this case, it is preferable that the protruding portion extends in the axial direction and the cross section is an arc-shaped ridge. Preferably, the outer ring comprises an end wall that is axially opposed to the end plate of the connecting member, and the end plate of the connecting member comprises the end face of the inner ring and the end wall of the outer ring. Is sandwiched by.

本発明のトルクリミッタの組立方法にあっては、所要形状をなした薄板状の接続基材が内輪と共に外輪の内側に圧入されることで、接続部材は形成されると同時に内輪の外周面及び外輪の内周面の間に配置される。従って、接続基材の延出片部を個別に起立させて接続部材を形成する煩雑な作業は必要なく、また、一度の圧入で内輪と外輪と接続部材とが適切に組み立てられるため、トルクリミッタを迅速に製造することができると共にその製造コストを低減させることができる。 In the method of assembling the torque limiter of the present invention, a thin plate-shaped connecting base material having a required shape is press-fitted into the inner ring together with the inner ring, so that the connecting member is formed and at the same time, the outer peripheral surface of the inner ring and the outer peripheral surface of the inner ring are formed. It is placed between the inner peripheral surfaces of the outer ring. Therefore, it is not necessary to individually erect the extending pieces of the connecting base material to form the connecting member, and the inner ring, the outer ring, and the connecting member can be properly assembled by one press-fitting, so that the torque limiter can be used. Can be manufactured quickly and the manufacturing cost can be reduced.

本発明に従って構成されたトルクリミッタの好適実施形態を示す図。The figure which shows the preferable embodiment of the torque limiter configured according to this invention. 図１に示すトルクリミッタの接続部材を単体で示す図。The figure which shows the connection member of the torque limiter shown in FIG. 1 by itself. 内輪と共に外輪の内側に圧入される接続基材を単体で示す図。The figure which shows the connecting base material which is press-fitted into the inside of the outer ring together with the inner ring by itself. 図１に示すトルクリミッタの組み立て工程を示す図。The figure which shows the assembly process of the torque limiter shown in FIG. 図１に示すトルクリミッタの組み立て工程を示す図。The figure which shows the assembly process of the torque limiter shown in FIG. 図１に示すトルクリミッタの組み立て工程を示す図。The figure which shows the assembly process of the torque limiter shown in FIG. 図１に示すトルクリミッタの組み立て工程を示す図。The figure which shows the assembly process of the torque limiter shown in FIG. 図１に示すトルクリミッタの組み立て工程を示す図。The figure which shows the assembly process of the torque limiter shown in FIG. 図１に示すトルクリミッタの組み立て工程を示す図。The figure which shows the assembly process of the torque limiter shown in FIG. 接続基材の第１の変形例を示す図。The figure which shows the 1st modification of the connection base material. 接続基材の第２の変形例を示す図。The figure which shows the 2nd modification of the connection base material.

以下、本発明に従って構成されたトルクリミッタ及びその組立方法の好適実施形態を図示している添付図面を参照して、更に詳細に説明する。 Hereinafter, the torque limiter configured according to the present invention and a preferred embodiment of the assembly method thereof will be described in more detail with reference to the accompanying drawings illustrating preferred embodiments thereof.

最初に、図１及び図２を参照して本発明に従って構成されたトルクリミッタの好適実施形態について説明する。 First, a preferred embodiment of the torque limiter configured according to the present invention will be described with reference to FIGS. 1 and 2.

図１を参照して説明すると、本発明に従って構成された、全体を番号２で示すトルクリミッタは、内輪４と、外輪６と、接続部材８とを具備している。内輪４、外輪６、及び接続部材８は共通の中心軸ｏを有し、図示の実施形態においては、何れも金属製である。 Explaining with reference to FIG. 1, the torque limiter, which is configured according to the present invention and is indicated by No. 2 as a whole, includes an inner ring 4, an outer ring 6, and a connecting member 8. The inner ring 4, the outer ring 6, and the connecting member 8 have a common central axis o, and in the illustrated embodiment, they are all made of metal.

内輪４は断面円形の中実棒状の軸状部材である。外輪６は有底円筒形状であって、内周面の断面も円形である。外輪６の軸方向片端は開放されており、外輪６の内側には内輪２の軸方向他端部が挿通されている。内輪４の軸方向片端部、及び外輪６の軸方向他端面には夫々、モーターの如き適宜の駆動源或いは従動部材に接続される図示しない係合部が設けられる。 The inner ring 4 is a solid rod-shaped shaft-shaped member having a circular cross section. The outer ring 6 has a bottomed cylindrical shape, and the cross section of the inner peripheral surface is also circular. One end in the axial direction of the outer ring 6 is open, and the other end in the axial direction of the inner ring 2 is inserted inside the outer ring 6. An engaging portion (not shown) connected to an appropriate drive source or driven member such as a motor is provided on one end in the axial direction of the inner ring 4 and the other end in the axial direction of the outer ring 6, respectively.

図１と共に図２を参照して説明すると、接続部材８は、共通の中心軸ｏに対して実質上垂直な端板１８と、この端板１８の外周縁から軸方向に延びる複数個の起立壁２０とを含んでいる。接続部材８の形成方法については後述するが、図示の実施形態においては、端板１８は内輪４の軸方向端面よりも僅かに大きい略正８角形であって、起立壁２０は端板１８の各辺（これを番号１８ａで示す）の中央部分を基端縁２２として軸方向に直線状に延びている。換言すれば、起立壁２０は周方向に等間隔をおいて８個設けられている。起立壁２０の延出端縁２４は、軸方向に見て基端縁２２から延出端縁２４に向かって凸な円弧形状となっている（これについても後述する）。起立壁２０の内周面には、径方向内側に突出する突出部２６が形成されている。突出部２６は軸方向に直線状に延在し、その断面は円弧形状の突条である。突出部２６の裏側には、これに沿った凹部が形成されている。 Explaining with reference to FIG. 2, the connecting member 8 includes an end plate 18 substantially perpendicular to the common central axis o, and a plurality of standing members extending in the axial direction from the outer peripheral edge of the end plate 18. Includes wall 20 and. The method of forming the connecting member 8 will be described later, but in the illustrated embodiment, the end plate 18 is a substantially regular octagon slightly larger than the axial end surface of the inner ring 4, and the upright wall 20 is the end plate 18. The central portion of each side (indicated by the number 18a) is set as the base end edge 22 and extends linearly in the axial direction. In other words, eight standing walls 20 are provided at equal intervals in the circumferential direction. The extending end edge 24 of the upright wall 20 has an arc shape that is convex from the base end edge 22 toward the extending end edge 24 when viewed in the axial direction (this will also be described later). On the inner peripheral surface of the upright wall 20, a protruding portion 26 projecting inward in the radial direction is formed. The protrusion 26 extends linearly in the axial direction, and its cross section is an arc-shaped ridge. A recess along the protrusion 26 is formed on the back side of the protrusion 26.

図示の実施形態においては、周方向に隣接する２つの起立壁２０が近接乃至当接している。起立壁２０は端板１８の各辺１８ａの中央部分を基端縁２２としており、起立壁２０の基端縁２２は端板１８の各辺１８ａよりも短い。そして、全ての起立壁２０の延出端部の周方向片側面には、周方向片側に突出する支持片２８が設けられており、周方向に隣接する２つの起立壁２０は、支持片２８を介して近接乃至当接し、支持片２８が設けられていない部分には隙間３０が形成される。ここで、周方向に隣接する２つの起立壁２０が当接することは必ずしも必要ではなく、両者の間には、起立壁２０が周方向に傾倒するのが防止される程度の僅かな隙間が存在していてもよい。周方向に隣接する２つの起立壁２０の周方向間隔は、端板１８の一辺１８ａの長さをＸとすると、支持片２８が設けられている部位においては、Ｘの０乃至５％程度、支持片２８が設けられていない部位においては（つまり隙間３０の周方向間隔は）、Ｘの５乃至４０％程度であるのが良い。所望ならば、上記支持片２８は省略してもよい。上記支持片２８を省略した場合には、周方向に隣接する２つの起立壁２０の周方向間隔は上記Ｘの０乃至４０％程度とするのが良い。 In the illustrated embodiment, two upright walls 20 adjacent to each other in the circumferential direction are in close proximity to each other or in contact with each other. The upright wall 20 has a central portion of each side 18a of the end plate 18 as a base end edge 22, and the base end edge 22 of the upright wall 20 is shorter than each side 18a of the end plate 18. A support piece 28 projecting to one side in the circumferential direction is provided on one side surface in the circumferential direction of all the extending ends of the upright walls 20, and the two upright walls 20 adjacent to each other in the circumferential direction are the support piece 28. A gap 30 is formed in a portion where the support piece 28 is not provided. Here, it is not always necessary for the two standing walls 20 adjacent to each other in the circumferential direction to come into contact with each other, and there is a slight gap between the two so as to prevent the standing walls 20 from tilting in the circumferential direction. You may be doing it. The circumferential distance between the two upright walls 20 adjacent to each other in the circumferential direction is about 0 to 5% of X in the portion where the support piece 28 is provided, where X is the length of one side 18a of the end plate 18. In the portion where the support piece 28 is not provided (that is, the circumferential interval of the gap 30), it is preferably about 5 to 40% of X. If desired, the support piece 28 may be omitted. When the support piece 28 is omitted, the circumferential distance between the two upright walls 20 adjacent to each other in the circumferential direction is preferably about 0 to 40% of the X.

図１を参照して説明すると、内輪４と外輪６と接続部材８とが所要とおりに組み立てられると（組み立て工程については後述する）、接続部材８の端板１８は、内輪４の軸方向端面と外輪６の軸方向端壁とによって挟持され、起立壁２０の内周面（図示の実施形態においては突出部２６）は内輪４の外周面と、起立壁２０の外周面は外輪６の内周面と夫々密接する。そして、外輪６と内輪４とを相対的に回転させる中心軸ｏ周りの回転トルクが付加されたとき、回転トルクが所定値以下の場合には、外輪６と内輪４と接続部材８とが一体となって回転し、回転トルクが所定値より大きい場合には、起立壁２０の内周面と内輪４の外周面との間の摩擦力或いは起立壁２０の外周面と外輪６の内周面との間の摩擦力に打ち勝って外輪６と内輪４とが相対的に回転する。 Explaining with reference to FIG. 1, when the inner ring 4, the outer ring 6, and the connecting member 8 are assembled as required (the assembly process will be described later), the end plate 18 of the connecting member 8 is the axial end surface of the inner ring 4. And the axial end wall of the outer ring 6, the inner peripheral surface of the upright wall 20 (the protruding portion 26 in the illustrated embodiment) is the outer peripheral surface of the inner ring 4, and the outer peripheral surface of the upright wall 20 is the inner surface of the outer ring 6. It is in close contact with the peripheral surface. When a rotational torque around the central axis o that relatively rotates the outer ring 6 and the inner ring 4 is applied, if the rotational torque is equal to or less than a predetermined value, the outer ring 6, the inner ring 4, and the connecting member 8 are integrated. When the rotational torque is greater than a predetermined value, the frictional force between the inner peripheral surface of the upright wall 20 and the outer peripheral surface of the inner ring 4 or the outer peripheral surface of the upright wall 20 and the inner peripheral surface of the outer ring 6 The outer ring 6 and the inner ring 4 rotate relative to each other by overcoming the frictional force between them.

図示の実施形態のトルクリミッタにあっては、周方向に隣接する２つの起立壁２０が近接乃至当接することで、内輪４と外輪６とを相対的に回転させる中心軸ｏ周りの比較的大きな回転トルクが付加された場合であっても、起立壁２０が周方向に傾倒することが防止され、接続部材８が損傷することなく内輪４と外輪６との間の滑りトルクを安定して維持することが可能となる。 In the torque limiter of the illustrated embodiment, the inner ring 4 and the outer ring 6 are relatively large around the central axis o when the two upright walls 20 adjacent to each other in the circumferential direction come close to each other or come into contact with each other. Even when rotational torque is applied, the upright wall 20 is prevented from tilting in the circumferential direction, and the sliding torque between the inner ring 4 and the outer ring 6 is stably maintained without damaging the connecting member 8. It becomes possible to do.

次に、図３及び図４を参照して、図１に示すトルクリミッタの組立方法について説明する。 Next, a method of assembling the torque limiter shown in FIG. 1 will be described with reference to FIGS. 3 and 4.

先ず、適宜の機械加工によって内輪４及び外輪６を形成するとともに、所要形状の接続基材３２を形成する。図３を参照して接続基材３２について説明すると、接続基材３２は、環状の中央部３４と、中央部３４の外周縁から径方向外方に延びる複数（図示の実施形態においては、８個）の延出片部３６とを含む薄板状であり、適宜の薄板材をプレス加工することによって形成される。延出片部３６はいずれも周方向に等間隔をおいて配置されており、周方向に隣接する２つの延出片部３６の基端の間には所要程度の弧状隙間３７が設けられている。全ての延出片部３６の外周縁は図３において二点鎖線で示す共通の仮想円３８の一部であって、仮想円３８の中心は接続基材３２の中心と合致する。かような延出片部３６は接続部材８の起立壁２０に相当する。番号を付して説明することは省略するが、夫々の延出片部３６には接続部材８の突出部２６及び支持片２８に相当する部位も形成されている。 First, the inner ring 4 and the outer ring 6 are formed by appropriate machining, and the connecting base material 32 having a required shape is formed. When the connecting base material 32 is described with reference to FIG. 3, the connecting base material 32 includes an annular central portion 34 and a plurality of connecting base materials 32 extending radially outward from the outer peripheral edge of the central portion 34 (8 in the illustrated embodiment). It has a thin plate shape including the extending piece portion 36, and is formed by pressing an appropriate thin plate material. The extending piece portions 36 are all arranged at equal intervals in the circumferential direction, and a required degree of arcuate gap 37 is provided between the base ends of the two extending piece portions 36 adjacent to each other in the circumferential direction. There is. The outer peripheral edges of all the extending pieces 36 are part of the common virtual circle 38 shown by the alternate long and short dash line in FIG. 3, and the center of the virtual circle 38 coincides with the center of the connecting base material 32. The extending piece portion 36 corresponds to the upright wall 20 of the connecting member 8. Although the description with numbers is omitted, each of the extending piece portions 36 is formed with a portion corresponding to a protruding portion 26 and a support piece 28 of the connecting member 8.

続いて、内輪４及び外輪６と、上述した接続基材３２とを組み合わせる工程について図４を参照して説明する。図４−１に示すとおり、内輪４と外輪６と接続基材３２とは共通の中心軸ｏ上に配置される。図示の実施形態においては、外輪６及び接続基材３２は全体を番号４０で示す円筒形状の治具によって支持される。治具４０は外輪６が上下方向に挿入可能な挿入孔４２と、上面において挿入孔４２を囲繞し、挿入孔４２と同一の中心を有する円環形状の位置決め突条４４とを具備している。挿入孔４２の内径は外輪６の外径と対応し、位置決め突条４４の内径は接続基材３２の外径、つまり仮想円３８の内径と対応し、治具４０の軸方向長さは外輪６の軸方向長さよりも長い（図４−２（ｂ）を参照されたい）。図４−２に示すとおり、かような治具４０は床面に固定され、外輪６が挿入孔４２に挿入されると共に、接続基材３２が位置決め突条４４の内側において上面に載置される。このとき、治具４０の軸方向長さは外輪６の軸方向長さよりも長いため、接続基材３２が治具４０の上面に載置された状態にあっては、接続基材３２と外輪６とは軸方向に離隔することとなる。 Subsequently, a step of combining the inner ring 4 and the outer ring 6 with the connection base material 32 described above will be described with reference to FIG. As shown in FIG. 4-1 the inner ring 4, the outer ring 6, and the connecting base material 32 are arranged on a common central axis o. In the illustrated embodiment, the outer ring 6 and the connecting base material 32 are entirely supported by a cylindrical jig indicated by number 40. The jig 40 includes an insertion hole 42 into which the outer ring 6 can be inserted in the vertical direction, and a ring-shaped positioning ridge 44 that surrounds the insertion hole 42 on the upper surface and has the same center as the insertion hole 42. .. The inner diameter of the insertion hole 42 corresponds to the outer diameter of the outer ring 6, the inner diameter of the positioning ridge 44 corresponds to the outer diameter of the connecting base material 32, that is, the inner diameter of the virtual circle 38, and the axial length of the jig 40 corresponds to the outer ring. It is longer than the axial length of 6 (see FIG. 4-2 (b)). As shown in FIG. 4-2, such a jig 40 is fixed to the floor surface, the outer ring 6 is inserted into the insertion hole 42, and the connecting base material 32 is placed on the upper surface inside the positioning ridge 44. To. At this time, since the axial length of the jig 40 is longer than the axial length of the outer ring 6, when the connecting base material 32 is placed on the upper surface of the jig 40, the connecting base material 32 and the outer ring are placed. It will be separated from 6 in the axial direction.

図４−２に示す状態から内輪４を降下させると、図４−３に示すとおり、内輪４の軸方向端面が接続基材３２の中央部３４に当接する。図４−３に示す状態から、内輪４の軸方向端面を接続基材３２の中央部３４に押し当てて、内輪４をさらに下方に降下（強制）せしめると、図４−４に示すとおり、中央部３４に対して延出片部３６が起立、つまり延出片部３６がその基端延から延出端縁に向かって上方に向かって径方向外方に傾斜する。このとき、治具４０の軸方向長さは外輪６の軸方向長さよりも長く、接続基材３２と外輪６とは軸方向に離隔しているため、延出片部３６は治具４０の挿入孔４２の外周縁を支点とした所謂梃子の原理により充分容易に中央部３４に対して起立せしめられる。そして、図４−４に示す状態から内輪４をさらに下方に降下（強制）せしめると、最初に、接続基材３２の中央部３４と共に内輪４が外輪６の内側に圧入され、次いで、延出片部３６が基端から延出端に向かって漸次外輪６の内側に圧入されることとなる。このとき、接続基材３２の延出片部３６は中央部３４に対して幾分起立しているため、中央部３４が内輪４と共に外輪６の内側に圧入される際に延出片部３６がガイドとして作用し、接続基材３２の中央部３４と共に内輪４は充分円滑に外輪６の内側に圧入されることとなる。接続基材３２の延出片部３６は中央部３４が下方に進むにつれて中央部３４に対する傾斜角度は大きくなり、最終的には軸方向と実質上平行となって延出片部３６の内周面が内輪４の外周面と、延出片部３６の外周面が外輪６の内周面と夫々密接することとなる。そして、図４−５に示すとおり、接続基材３２の中央部３４が外輪６の軸方向端面と当接すると、内輪４及び接続基材２３の降下は停止し、接続部材８が形成されることとなる。かくして、本発明のトルクリミッタ２が完成する。その後に、治具４０が除去される。 When the inner ring 4 is lowered from the state shown in FIG. 4-2, the axial end surface of the inner ring 4 comes into contact with the central portion 34 of the connecting base material 32 as shown in FIG. 4-3. From the state shown in FIG. 4-3, the axial end surface of the inner ring 4 is pressed against the central portion 34 of the connecting base material 32 to further lower (force) the inner ring 4, as shown in FIG. 4-4. The extending piece portion 36 stands up against the central portion 34, that is, the extending piece portion 36 inclines outward in the radial direction from the base end extension toward the extension end edge. At this time, the axial length of the jig 40 is longer than the axial length of the outer ring 6, and the connecting base material 32 and the outer ring 6 are separated in the axial direction. Therefore, the extension piece portion 36 is the jig 40. It can be easily erected with respect to the central portion 34 by the so-called jig principle with the outer peripheral edge of the insertion hole 42 as a fulcrum. Then, when the inner ring 4 is further lowered (forced) from the state shown in FIG. 4-4, the inner ring 4 is first press-fitted into the inner ring 6 together with the central portion 34 of the connecting base material 32, and then extends. The piece 36 is gradually press-fitted into the inner ring 6 from the base end to the extending end. At this time, since the extending piece portion 36 of the connecting base material 32 is somewhat upright with respect to the central portion 34, the extending piece portion 36 is pressed into the inside of the outer ring 6 together with the inner ring 4. Acts as a guide, and the inner ring 4 is sufficiently smoothly press-fitted into the inner ring 6 together with the central portion 34 of the connecting base material 32. The inclination angle of the extending piece portion 36 of the connecting base material 32 with respect to the central portion 34 increases as the central portion 34 moves downward, and finally becomes substantially parallel to the axial direction and is substantially parallel to the axial direction, and the inner circumference of the extending piece portion 36. The outer peripheral surface of the inner ring 4 and the outer peripheral surface of the extending piece portion 36 are in close contact with the inner peripheral surface of the outer ring 6, respectively. Then, as shown in FIG. 4-5, when the central portion 34 of the connecting base material 32 comes into contact with the axial end surface of the outer ring 6, the lowering of the inner ring 4 and the connecting base material 23 is stopped, and the connecting member 8 is formed. It will be. Thus, the torque limiter 2 of the present invention is completed. After that, the jig 40 is removed.

本発明のトルクリミッタの組立方法にあっては、所要形状をなした薄板状の接続基材３２が内輪４と共に外輪６の内側に圧入されることで、接続部材８は形成されると同時に内輪４の外周面及び外輪６の内周面の間に配置される。従って、接続基材３２の延出片部３６を個別に起立させて接続部材８を形成する煩雑な作業は必要なく、また、一度の圧入で内輪４と外輪６と接続部材８とが適切に組み立てられるため、トルクリミッタを迅速に製造することができると共にその製造コストを低減させることができる。更に、図示の実施形態においては、延出片部３６は中央部３４の外周面において周方向に等間隔をおいて配置されていることから、延出片部３６が中央部３４に対して起立した際に隙間３０が形成され、周方向に隣接する２個の延出片部３６（或いは起立壁２０）が過剰に干渉してしまうことが防止される。 In the method of assembling the torque limiter of the present invention, the thin plate-shaped connecting base material 32 having a required shape is press-fitted into the outer ring 6 together with the inner ring 4, so that the connecting member 8 is formed and the inner ring is formed at the same time. It is arranged between the outer peripheral surface of 4 and the inner peripheral surface of the outer ring 6. Therefore, it is not necessary to individually erect the extending piece portion 36 of the connecting base material 32 to form the connecting member 8, and the inner ring 4, the outer ring 6, and the connecting member 8 can be appropriately pressed by one press fitting. Since it is assembled, the torque limiter can be manufactured quickly and the manufacturing cost thereof can be reduced. Further, in the illustrated embodiment, since the extending piece portions 36 are arranged on the outer peripheral surface of the central portion 34 at equal intervals in the circumferential direction, the extending piece portions 36 stand upright with respect to the central portion 34. At that time, a gap 30 is formed, and it is possible to prevent the two extending piece portions 36 (or the standing wall 20) adjacent to each other in the circumferential direction from excessively interfering with each other.

以上、本発明のトルクリミッタの組立方法について、添付した図面を参照して詳述したが、本発明のトルクリミッタの組立方法は上述した実施形態に限定されることはなく、種々の変形例が考えられる。例えば、上述した実施形態においては、接続基材３２は図４に示す形状であったが、これに替えて図５及び図６に示すような形状であってもよい。接続基材が図５に示す形状である場合（これを番号３２´で示す）、支持片（２８´）は、全ての起立壁（２０´）の周方向片側面に設けられるわけではなく、周方向に１個おきの起立壁（２０´）においてその周方向両側に突出する。また、突出部（２６´）は、軸方向に延在し、断面が円弧形状の突条ではなく、軸方向に間隔をおいて配置された複数個の半球状により構成される。接続基材が図６に示す形状である場合（これを番号３２´´で示す）、突出部（２６´´）は軸方向に延在しているものの、その断面はハの字形状をなしている。更に、図示の実施形態においては、接続部材８の起立壁２０に設けられた突出部２６が内輪４の外周面に密接せしめられていたが、突出部は外輪６の内周面に密接せしめられるようにしてもよい。更にまた、上記滑りトルク値が比較的小さく設定される場合には、接続部材８の起立壁２０に設けられた突出部２６は設けなくてもよい。この場合、起立壁２０の内周面の基端縁が内輪４の外周面の基端縁と密接することとなる。 The method for assembling the torque limiter of the present invention has been described in detail with reference to the attached drawings. However, the method for assembling the torque limiter of the present invention is not limited to the above-described embodiment, and various modifications can be made. Conceivable. For example, in the above-described embodiment, the connecting base material 32 has the shape shown in FIG. 4, but may have a shape as shown in FIGS. 5 and 6 instead. When the connecting base material has the shape shown in FIG. 5 (this is indicated by the number 32'), the support pieces (28') are not provided on one side surface in the circumferential direction of all the upright walls (20'). Every other upright wall (20') in the circumferential direction protrudes on both sides in the circumferential direction. Further, the projecting portion (26') extends in the axial direction and is composed of a plurality of hemispheres arranged at intervals in the axial direction instead of a ridge having an arc-shaped cross section. When the connecting base material has the shape shown in FIG. 6 (this is indicated by the number 32 ″), the protruding portion (26 ″) extends in the axial direction, but its cross section does not have a C shape. ing. Further, in the illustrated embodiment, the protruding portion 26 provided on the upright wall 20 of the connecting member 8 is brought into close contact with the outer peripheral surface of the inner ring 4, but the protruding portion is brought into close contact with the inner peripheral surface of the outer ring 6. You may do so. Furthermore, when the sliding torque value is set to be relatively small, the protruding portion 26 provided on the upright wall 20 of the connecting member 8 may not be provided. In this case, the proximal edge of the inner peripheral surface of the upright wall 20 is in close contact with the proximal edge of the outer peripheral surface of the inner ring 4.

２：トルクリミッタ
４：内輪
６：外輪
８：接続部材
２０：起立壁
２６：突出部
２８：支持片
３２：接続基材
４０：治具 2: Torque limiter 4: Inner ring 6: Outer ring 8: Connecting member 20: Standing wall 26: Protruding part 28: Support piece 32: Connecting base material 40: Jig

好ましくは、前記外輪が上下方向に挿入可能な挿入孔と、上面において前記挿入孔を囲繞し、前記挿入孔と同一の中心を有する円環形状の位置決め突条とを具備した治具を備え、前記接続基材に設けられた複数の前記延出片部の外周縁の夫々は共通の仮想円の一部であって前記仮想円の中心は前記接続基材の中心と合致すると共に、前記仮想円の外径は前記位置決め突条の内径と対応し、前記外輪は前記治具の前記挿入孔に挿入され、前記接続基材は前記位置決め突条の内側において前記治具の上面に載置された状態で、前記接続基材の前記中央部は前記内輪の端面に押し当てられる。この場合には、前記接続基材が前記治具の上面に載置された状態にあっては、前記接続基材と前記外輪とは軸方向に離隔しているのが好適である。前記起立壁の周方向側面には、周方向に突出する支持片が設けられており、前記支持片が周方向に隣接する前記起立壁と近接乃至当接するのがよい。この場合には、前記支持片は前記起立壁の延出端部に設けられているのが好都合である。さらに、前記支持片は全ての前記起立壁に設けられており、いずれの前記支持片も周方向片側に突出しているのがよい。前記起立壁の内周面には、径方向内側に突出し前記内輪の外周面と密接する突出部が形成されているのが好適である。この場合には、前記突出部は軸方向に延在し、断面は円弧形状の突条であるのがよい。好適には、前記外輪は、前記接続部材の前記端板と軸方向に対向する端壁を備えており、前記接続部材の前記端板は、前記内輪の前記端面と前記外輪の前記端壁とによって挟持されている。 Preferably, the jig is provided with an insertion hole into which the outer ring can be inserted in the vertical direction, and a ring-shaped positioning ridge that surrounds the insertion hole on the upper surface and has the same center as the insertion hole. Each of the outer peripheral edges of the plurality of extending pieces provided on the connecting base material is a part of a common virtual circle, and the center of the virtual circle coincides with the center of the connecting base material and the virtual circle is formed. the outer diameter of the circle corresponds to the inner diameter of the positioning rib, the outer ring is inserted before Ki挿in hole of said jig, wherein the connection substrate mounting on the upper surface of the jig in the inside of the positioning protrusion In the placed state, the central portion of the connecting base material is pressed against the end face of the inner ring. In this case, when the connecting base material is placed on the upper surface of the jig, it is preferable that the connecting base material and the outer ring are axially separated from each other. A support piece projecting in the circumferential direction is provided on the circumferential side surface of the upright wall, and the support piece is preferably in close proximity to or in contact with the upright wall adjacent in the circumferential direction. In this case, it is convenient that the support piece is provided at the extending end of the upright wall. Further, the support pieces are provided on all the upright walls, and it is preferable that all the support pieces project to one side in the circumferential direction. It is preferable that the inner peripheral surface of the upright wall is formed with a protruding portion that projects inward in the radial direction and is in close contact with the outer peripheral surface of the inner ring. In this case, it is preferable that the protruding portion extends in the axial direction and the cross section is an arc-shaped ridge. Preferably, the outer ring comprises an end wall that is axially opposed to the end plate of the connecting member, and the end plate of the connecting member comprises the end face of the inner ring and the end wall of the outer ring. Is sandwiched by.

Claims (9)

軸状の内輪と、前記内輪が挿通される外輪と、前記内輪及び前記外輪の間に配置される接続部材とを具備し、
前記内輪と前記外輪と前記接続部材とは共通の中心軸を有し、
前記接続部材は、前記内輪の端面と軸方向に対向する端板と、前記端板の外周縁から軸方向に起立する複数個の起立壁とを含み、
前記起立壁の夫々は周方向に並列して設けられ、前記起立壁の内周面は前記内輪の外周面と、前記起立壁の外周面は前記外輪の内周面と夫々密接し、
前記外輪と前記内輪とを相対的に回転させる前記中心軸周りの回転トルクが付加されたときは、前記回転トルクが所定値より大きい場合に、前記起立壁の内周面と前記内輪の外周面との間の摩擦力或いは前記起立壁の外周面と前記外輪の内周面との間の摩擦力に打ち勝って前記外輪と前記内輪とが相対的に回転するトルクリミッタの組立方法であって、
中央部と、前記中央部の外周面から径方向外方に延びる複数の延出片部とを含む薄板状の接続基材を形成し、
前記共通の中心軸上において軸方向に間隔をおいて配置された前記内輪と前記外輪との間に、前記接続基材を前記共通の中心軸と同軸上に配置し、
前記内輪の端面を前記接続基材の前記中央部に押し当てて、前記内輪を前記接続基材と共に前記外輪の内側に圧入することで、前記接続基材の前記延出片部が前記中央部に対し起立して前記接続部材が形成される、ことを特徴とするトルクリミッタの組立方法。 It includes a shaft-shaped inner ring, an outer ring through which the inner ring is inserted, and a connecting member arranged between the inner ring and the outer ring.
The inner ring, the outer ring, and the connecting member have a common central axis.
The connecting member includes an end plate that faces the end surface of the inner ring in the axial direction, and a plurality of upright walls that rise in the axial direction from the outer peripheral edge of the end plate.
Each of the upright walls is provided in parallel in the circumferential direction, and the inner peripheral surface of the upright wall is in close contact with the outer peripheral surface of the inner ring and the outer peripheral surface of the upright wall is in close contact with the inner peripheral surface of the outer ring.
When a rotational torque around the central axis that relatively rotates the outer ring and the inner ring is applied, the inner peripheral surface of the upright wall and the outer peripheral surface of the inner ring are found when the rotational torque is larger than a predetermined value. A method of assembling a torque limiter in which the outer ring and the inner ring rotate relative to each other by overcoming the frictional force between the two and the outer peripheral surface of the upright wall and the inner peripheral surface of the outer ring.
A thin plate-shaped connecting base material including a central portion and a plurality of extending pieces extending radially outward from the outer peripheral surface of the central portion is formed.
The connecting base material is arranged coaxially with the common central axis between the inner ring and the outer ring arranged at intervals in the axial direction on the common central axis.
By pressing the end surface of the inner ring against the central portion of the connecting base material and pressing the inner ring together with the connecting base material into the inside of the outer ring, the extending piece portion of the connecting base material becomes the central portion. A method of assembling a torque limiter, characterized in that the connecting member is formed by standing upright. 前記外輪が上下方向に挿入可能な挿入孔と、上面において前記挿入孔を囲繞し、前記挿入孔と同一の中心を有する円環形状の位置決め突条とを具備した治具を備え、
前記接続基材に設けられた複数の前記延出片部の外周縁の夫々は共通の仮想円の一部であって前記仮想円の中心は前記接続基材の中心と合致すると共に、前記仮想円の外径は前記位置決め突条の内径と対応し、
前記外輪は前記治具の前記外輪挿入孔に挿入され、前記接続基材は前記位置決め突条の内側において前記治具の上面に載置された状態で、前記接続基材の前記中央部は前記内輪の端面に押し当てられる、請求項１に記載のトルクリミッタの組立方法。 A jig provided with an insertion hole into which the outer ring can be inserted in the vertical direction and a ring-shaped positioning ridge that surrounds the insertion hole on the upper surface and has the same center as the insertion hole.
Each of the outer peripheral edges of the plurality of extending pieces provided on the connecting base material is a part of a common virtual circle, and the center of the virtual circle coincides with the center of the connecting base material and the virtual circle is formed. The outer diameter of the circle corresponds to the inner diameter of the positioning ridge,
The outer ring is inserted into the outer ring insertion hole of the jig, the connecting base material is placed on the upper surface of the jig inside the positioning ridge, and the central portion of the connecting base material is the said. The method for assembling a torque limiter according to claim 1, wherein the torque limiter is pressed against the end surface of the inner ring. 前記接続基材が前記治具の上面に載置された状態にあっては、前記接続基材と前記外輪とは軸方向に離隔している、請求項２に記載のトルクリミッタの組立方法。 The method for assembling a torque limiter according to claim 2, wherein the connecting base material and the outer ring are separated in the axial direction when the connecting base material is placed on the upper surface of the jig. 前記起立壁の周方向側面には、周方向に突出する支持片が設けられており、前記支持片が周方向に隣接する前記起立壁と近接乃至当接する、請求項１乃至３のいずれかに記載のトルクリミッタの組立方法。 According to any one of claims 1 to 3, a support piece projecting in the circumferential direction is provided on the circumferential side surface of the upright wall, and the support piece approaches or comes into contact with the upright wall adjacent in the circumferential direction. The method of assembling the torque limiter described. 前記支持片は前記起立壁の延出端部に設けられている、請求項４に記載のトルクリミッタの組立方法。 The method for assembling a torque limiter according to claim 4, wherein the support piece is provided at an extending end of the upright wall. 前記支持片は全ての前記起立壁に設けられており、いずれの前記支持片も周方向片側に突出している、請求項４又は５に記載のトルクリミッタの組立方法。 The method for assembling a torque limiter according to claim 4 or 5, wherein the support pieces are provided on all the upright walls, and all the support pieces project to one side in the circumferential direction. 前記起立壁の内周面には、径方向内側に突出し前記内輪の外周面と密接する突出部が形成されている、請求項１乃至６のいずれかに記載のトルクリミッタの組立方法。 The method for assembling a torque limiter according to any one of claims 1 to 6, wherein a protruding portion that protrudes inward in the radial direction and is in close contact with the outer peripheral surface of the inner ring is formed on the inner peripheral surface of the upright wall. 前記突出部は軸方向に延在し、断面は円弧形状の突条である、請求項７に記載のトルクリミッタの組立方法。 The method for assembling a torque limiter according to claim 7, wherein the protruding portion extends in the axial direction and the cross section is an arc-shaped ridge. 前記外輪は、前記接続部材の前記端板と軸方向に対向する端壁を備えており、
前記接続部材の前記端板は、前記内輪の前記端面と前記外輪の前記端壁とによって挟持されている、請求項１乃至８のいずれかに記載のトルクリミッタの組立方法。 The outer ring includes an end wall that is axially opposed to the end plate of the connecting member.
The method for assembling a torque limiter according to any one of claims 1 to 8, wherein the end plate of the connecting member is sandwiched between the end surface of the inner ring and the end wall of the outer ring.