JP7006064B2 - Crimping device and crimping method for hose fittings - Google Patents

Crimping device and crimping method for hose fittings Download PDF

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JP7006064B2
JP7006064B2 JP2017177012A JP2017177012A JP7006064B2 JP 7006064 B2 JP7006064 B2 JP 7006064B2 JP 2017177012 A JP2017177012 A JP 2017177012A JP 2017177012 A JP2017177012 A JP 2017177012A JP 7006064 B2 JP7006064 B2 JP 7006064B2
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crimping
claw
space
socket
hose
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JP2019051539A (en
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範明 長澤
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Yokohama Rubber Co Ltd
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Description

本発明はホース継手金具の加締め装置および加締め方法に関する。 The present invention relates to a crimping device and a crimping method for hose joint fittings.

ホース継手金具のニップルの外周部とソケットの内周部との間にホースが挿入された状態で、ソケットの周方向に配置された複数の加締め爪をソケットの半径方向内側に移動させ、ソケットをその半径方向内側に加締めることによってホース継手金具をホースの端部に取り付けるホース継手金具の加締め装置が提供されている。
ところで、ソケットの加締め形状、すなわち、ソケットの軸心を含む断面におけるソケットの断面形状は、ホース継手金具の性能や仕様によって異なる。
ソケットの軸心方向に沿ってソケットの外径を均一に加締める場合は、ソケットの軸心方向に沿って高さが均一の形状の加締め爪を用いる。
例えば、ホース継手金具が、ソケットの内周面に、周方向の全周にわたって軸方向に間隔をおいて複数の係止用凸部が設けられているものである場合について説明する。 With the hose inserted between the outer circumference of the nipple of the hose fitting and the inner circumference of the socket, multiple crimping claws arranged in the circumferential direction of the socket are moved inward in the radial direction of the socket to form the socket. A crimping device for a hose fitting that attaches the hose fitting to the end of the hose by crimping the hose inward in the radial direction is provided.
By the way, the crimping shape of the socket, that is, the cross-sectional shape of the socket in the cross section including the axis of the socket differs depending on the performance and specifications of the hose joint fitting.
When crimping the outer diameter of the socket uniformly along the axial direction of the socket, use a crimping claw having a uniform height along the axial direction of the socket.
For example, a case where the hose joint fitting is provided with a plurality of locking protrusions on the inner peripheral surface of the socket at intervals in the axial direction over the entire circumference in the circumferential direction will be described.

ホース継手金具によるホースの取り付け強度を確保するためには、ソケットが加締められた状態でのソケットの軸心方向におけるソケットの係止用凸部のニップルに対する位置のばらつきが設計で定められた範囲内となるようにすることが重要である。
加締め爪によりソケットを加締めると、ソケットの内周面の複数の係止用凸部がホースの外周面に食い込んで係合すると共にソケットの内周面とニップルの外周面との間でホースがその半径方向において強く圧縮される。
圧縮されたホースの部分はソケットの軸心方向に沿って伸びる方向の変位を生じるが、ソケットの複数の係止用凸部はホースの外周面に食い込んで係合しているため、ソケットの複数の係止用凸部もホースの部分の変位に追従してソケットの軸心方向に変位する。 In order to secure the mounting strength of the hose with the hose fitting, the variation in the position of the locking convex part of the socket with respect to the nipple in the axial direction of the socket when the socket is crimped is within the range specified by the design. It is important to be inside.
When the socket is crimped with the crimping claws, a plurality of locking protrusions on the inner peripheral surface of the socket bite into and engage with the outer peripheral surface of the hose, and the hose is engaged between the inner peripheral surface of the socket and the outer peripheral surface of the nipple. Is strongly compressed in its radial direction.
The compressed hose portion causes a displacement in the direction extending along the axial direction of the socket, but since the multiple locking protrusions of the socket bite into the outer peripheral surface of the hose and engage with each other, the plurality of sockets The locking convex portion of is also displaced in the axial direction of the socket following the displacement of the hose portion.

特開２０１６－８６７３号公報Japanese Unexamined Patent Publication No. 2016-8673

しかしながら、ソケットの軸心方向に沿った加締め範囲を軸心方向に沿って高さが均一な加締め爪により加締めた場合、加締め時に圧縮されるホースの部分はソケットの複数の係止用凸部によって同時に拘束されるため逃げ場を失い、圧縮されるホースの部分がホースのソケットの軸心方向に沿った何れの方向に変位するかが安定せずばらついている。
そのため、加締められたホースの部分に追従してソケットの部分が変位する方向もばらつくため、係止用凸部が互いに接近する方向に変位したり、あるいは、係止用凸部が互いに離間する方向に変位したりばらついている。
そのため、ソケットの軸心方向におけるソケットの係止用凸部のニップルに対する位置のばらつきを設計の範囲内とする上で不利となり、ホース継手金具によるホースの取り付け強度のばらつきを抑制する上で改善の余地がある。
本発明は前記事情に鑑み案出されたものであって、その目的はホース継手金具によるホースの取り付け強度のばらつきの抑制を図る上で有利なホース継手金具の加締め装置および加締め方法を提供することにある。 However, when the crimping range along the axial direction of the socket is crimped by the crimping claws having a uniform height along the axial direction, the part of the hose that is compressed during crimping is a plurality of locking of the socket. Since it is restrained at the same time by the convex portion, it loses a refuge, and the direction in which the part of the hose to be compressed is displaced along the axial direction of the socket of the hose is not stable and varies.
Therefore, the direction in which the socket portion is displaced following the crimped hose portion also varies, so that the locking convex portions are displaced in the direction of approaching each other, or the locking convex portions are separated from each other. It is displaced or scattered in the direction.
Therefore, it is disadvantageous to keep the variation in the position of the locking convex part of the socket with respect to the nipple in the axial direction of the socket within the design range, and it is improved in suppressing the variation in the mounting strength of the hose due to the hose joint fitting. There is room.
The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a crimping device and a crimping method for hose fittings, which is advantageous for suppressing variations in hose mounting strength due to hose fittings. To do.

上述の目的を達成するため、本発明は、ニップルの外周部とソケットの内周部との間でソケットの軸心方向に延在する環状空間に、前記環状空間の延在方向の一端の開口からホースが挿入されたホース継手金具を前記ソケットの軸心方向に延在する加締め空間に挿入し、前記加締め空間の周方向に並べられた複数の加締め爪を、前記加締め空間の半径方向外側から内側に移動し、前記ソケットを加締めるホース継手金具の加締め装置であって、
前記各加締め爪は、前記加締め空間の延在方向に並べられた複数の加締め爪分割体からなる加締め爪集合体で構成され、複数の前記加締め爪集合体の各加締め爪分割体は、それぞれ並べられた順番毎に前記加締め空間の延在方向において同一の箇所に位置するように配置され、前記開口と反対に位置する前記環状空間の延在方向の他端に対向する複数の前記加締め爪分割体から前記延在方向の一端に対向する複数の前記加締め爪分割体に向けて順に、前記加締め空間の延在方向において同一の箇所に配置された複数の前記加締め爪分割体毎に、前記加締め空間の半径方向外側から内側に移動させる移動部が設けられていることを特徴とする。
また、本発明は、前記移動部は、その内側空間に複数の前記加締め爪集合体を収容するカムリングと、前記カムリングを回転させるアクチュエータとを含んで構成され、前記カムリングは、その内周部に周方向に延在するカム面集合体を有し、前記カム面集合体は、前記加締め爪集合体を構成する複数の前記加締め爪分割体に対応し前記カムリングの軸心方向に並べられて複数設けられ、前記各カム面集合体は、前記加締め空間の延在方向において同一の箇所に配置された複数の加締め爪分割体に対応して設けられた複数のカム面が前記カムリングの周方向に並べられて構成されていることを特徴とする。
また、本発明は、前記加締め爪分割体は細長形状を呈し、その長手方向の一端が前記ソケットを加締める爪部となっており、その長手方向の他端が基端となっており、前記各カム面は、前記基端が接触することで、加締めるべきソケットの外周面からその半径方向外側に離れた退避位置にそれら前記加締め爪分割体の前記爪部を位置させる退避位置用面と、前記カムリングの回転により前記加締め爪分割体の前記爪部を前記退避位置から前記カムリングの半径方向内側に移動させソケットを次第に加締めていく加締め用面とを有していることを特徴とする。
また、本発明は、ニップルの外周部とソケットの内周部との間でソケットの軸心方向に延在する環状空間に、前記環状空間の延在方向の一端の開口からホースが挿入された継手金具を、前記ソケットの軸心方向に延在する加締め空間に挿入し、前記加締め空間の周方向に分割された複数の加締め爪を、前記加締め空間の半径方向外側から内側に移動し、前記ソケットを加締めるホース継手金具の加締め方法であって、前記各加締め爪を、前記加締め空間の延在方向に並べられた複数の加締め爪分割体からなる加締め爪集合体で構成し、複数の前記加締め爪集合体の各加締め爪分割体を、それぞれ並べられた順番毎に前記加締め空間の延在方向において同一の箇所に位置するように配置し、前記開口と反対に位置する前記環状空間の延在方向の他端に対向する複数の前記加締め爪分割体から前記延在方向の一端に対向する複数の前記加締め爪分割体に向けて順に、前記加締め空間の延在方向において同一の箇所に配置された複数の前記加締め爪分割体毎に前記加締め空間の半径方向外側から内側に移動させるようにしたことを特徴とする。 In order to achieve the above object, the present invention has an opening at one end of the annular space in the extending direction in the annular space extending in the axial direction of the socket between the outer peripheral portion of the nipple and the inner peripheral portion of the socket. The hose joint fitting into which the hose is inserted is inserted into the crimping space extending in the axial direction of the socket, and a plurality of crimping claws arranged in the circumferential direction of the crimping space are inserted into the crimping space. A crimping device for hose joint fittings that moves from the outside to the inside in the radial direction and crimps the socket.
Each of the crimping claws is composed of a crimping claw aggregate composed of a plurality of crimping claw split bodies arranged in the extending direction of the crimping space, and each crimping claw of the plurality of crimping claw aggregates. The divided bodies are arranged so as to be located at the same position in the extending direction of the crimping space in the order in which they are arranged, and face the other end of the annular space located opposite to the opening in the extending direction. A plurality of crimped claws arranged at the same position in the extending direction of the crimping space in order from the plurality of crimped claws divided bodies toward the plurality of crimped claws divided bodies facing one end in the extending direction. Each of the crimping claw split bodies is provided with a moving portion for moving the crimping space from the outside in the radial direction to the inside.
Further, in the present invention, the moving portion includes a cam ring for accommodating a plurality of the crimping claw aggregates in the inner space thereof, and an actuator for rotating the cam ring, and the cam ring is an inner peripheral portion thereof. It has a cam surface aggregate extending in the circumferential direction, and the cam surface aggregate corresponds to a plurality of the crimping claw split bodies constituting the crimping claw aggregate and is arranged in the axial direction of the cam ring. Each of the cam surface aggregates is provided with a plurality of cam surfaces provided corresponding to the plurality of crimping claw split bodies arranged at the same position in the extending direction of the crimping space. It is characterized in that it is arranged side by side in the circumferential direction of the cam ring.
Further, in the present invention, the crimping claw split body has an elongated shape, one end in the longitudinal direction thereof is a claw portion for crimping the socket, and the other end in the longitudinal direction thereof is a base end. Each of the cam surfaces is for a retracted position in which the claw portion of the crimped claw split body is positioned at a retracted position separated radially outward from the outer peripheral surface of the socket to be crimped by contacting the base end. It has a surface and a surface for crimping that moves the claw portion of the crimping claw split body inward in the radial direction of the cam ring from the retracted position by the rotation of the cam ring and gradually crimps the socket. It is characterized by.
Further , in the present invention, the hose is inserted into the annular space extending in the axial direction of the socket between the outer peripheral portion of the nipple and the inner peripheral portion of the socket from the opening at one end in the extending direction of the annular space. The fitting is inserted into the crimping space extending in the axial direction of the socket, and a plurality of crimping claws divided in the circumferential direction of the crimping space are inserted from the outside to the inside in the radial direction of the crimping space. A method of crimping a hose joint fitting that moves and crimps the socket, wherein each crimping claw is composed of a plurality of crimping claw split bodies arranged in the extending direction of the crimping space. It is composed of an aggregate, and each of the plurality of crimping claw aggregates is arranged in the order in which they are arranged so as to be located at the same position in the extending direction of the crimping space. From the plurality of crimping claw splits facing the other end in the extending direction of the annular space located opposite to the opening, toward the plurality of crimping claw splitting bodies facing one end in the extending direction. It is characterized in that each of a plurality of the crimping claw split bodies arranged at the same position in the extending direction of the crimping space is moved from the outside to the inside in the radial direction of the crimping space.

本発明によれば、ホース継手金具の形態に応じて、また、ソケットやホースの材料などに応じて最適な加締めが行なわれ、ホース継手金具によるホースの取り付け強度のばらつきの抑制を図る上で有利となる。
また、本発明によれば、移動部のコンパクト化、軽量化を図る上で有利となる。
また、本発明によれば、ソケットの軸心方向におけるソケットの係止用凸部のニップルに対する位置のばらつきを設計の範囲内とする上で有利となり、ホース継手金具によるホースの取り付け強度のばらつきの抑制を図る上でより有利となる According to the present invention, optimum crimping is performed according to the form of the hose fitting and the material of the socket and the hose, and it is possible to suppress the variation in the mounting strength of the hose by the hose fitting. It will be advantageous.
Further, according to the present invention, it is advantageous in reducing the size and weight of the moving portion.
Further, according to the present invention, it is advantageous to make the variation in the position of the locking convex portion of the socket with respect to the nipple in the axial direction of the socket within the design range, and the variation in the mounting strength of the hose by the hose joint fitting is made. It will be more advantageous in trying to suppress

実施の形態に係る加締め装置の全体構成を示す斜視図である。It is a perspective view which shows the whole structure of the crimping device which concerns on embodiment. 加締め爪集合体の斜視図である。It is a perspective view of the crimping claw assembly. 加締め爪集合体の分解斜視図である。It is an exploded perspective view of the crimping claw assembly. 支持部材の斜視図である。It is a perspective view of a support member. 押え板の斜視図である。It is a perspective view of a holding plate. カムリングの斜視図である。It is a perspective view of a cam ring. 実施の形態に係る加締め装置の要部を示す断面図である。It is sectional drawing which shows the main part of the crimping device which concerns on embodiment. 実施の形態に係る加締め装置の分解斜視図である。It is an exploded perspective view of the crimping device which concerns on embodiment. 加締め爪集合体およびカムリングの動作を示す第１の説明図である。It is 1st explanatory drawing which shows the operation of a crimping claw aggregate and a cam ring. 加締め爪集合体およびカムリングの動作を示す第２の説明図である。It is a 2nd explanatory drawing which shows the operation of a crimping claw aggregate and a cam ring. 加締め爪集合体およびカムリングの動作を示す第３の説明図である。It is a 3rd explanatory drawing which shows the operation of a crimping claw aggregate and a cam ring. 加締め爪集合体およびカムリングの動作を示す第４の説明図である。It is a 4th explanatory view which shows the operation of a crimping claw aggregate and a cam ring. 加締め爪集合体およびカムリングの動作を示す第５の説明図である。FIG. 5 is a fifth explanatory view showing the operation of the crimping claw assembly and the cam ring. 加締め爪集合体およびカムリングの動作を示す第６の説明図である。It is a sixth explanatory view which shows the operation of a crimping claw aggregate and a cam ring. 加締め爪集合体およびカムリングの動作を示す第７の説明図である。It is a 7th explanatory drawing which shows the operation of a crimping claw assembly and a cam ring. 加締め爪分割体によるソケットの加締め動作を説明する第１の断面図である。It is 1st sectional drawing explaining the crimping operation of a socket by a crimping claw split body. 加締め爪分割体によるソケットの加締め動作を説明する第２の断面図である。It is a 2nd sectional view explaining the crimping operation of a socket by a crimping claw split body. 加締め爪分割体によるソケットの加締め動作を説明する第３の断面図である。It is a 3rd sectional view explaining the crimping operation of a socket by a crimping claw split body. 加締め爪分割体によるソケットの加締め動作を説明する第４の断面図である。It is a 4th sectional view explaining the crimping operation of a socket by a crimping claw split body. 加締め爪分割体によるソケットの加締め動作を説明する第５の断面図である。It is a 5th sectional view explaining the crimping operation of a socket by a crimping claw split body. 加締め爪分割体によるソケットの加締め動作を説明する第６の断面図である。It is a sixth sectional view explaining the crimping operation of a socket by a crimping claw split body. 加締め爪分割体によるソケットの加締め動作を説明する第７の断面図である。It is a 7th sectional view explaining the crimping operation of a socket by a crimping claw split body.

次に本発明の実施の形態について、本発明の加締め方法を加締め装置と共に説明する。
なお、加締め装置によって加締めるホース継手金具１０は、図１６に示すように、互いに結合されたニップル１２とソケット１４とを備え、ニップル１２の外周部とソケット１４の内周部との間に環状空間Ｓ１が形成されている。
また、ソケット１４の内周面には、ソケット１４の周方向の全周にわたって軸方向に間隔をおいて複数の複数の係止用凸部１４０２が、本実施の形態では、４つの係止用凸部１４０２が設けられている。なお、本発明は、係止用凸部１４０２を有さないソケット１４にも無論適用可能である。
なお、図中符号１６はホースを示す。 Next, an embodiment of the present invention will be described with respect to the crimping method of the present invention together with the crimping device.
As shown in FIG. 16, the hose joint fitting 10 to be crimped by the crimping device includes a nipple 12 and a socket 14 coupled to each other, and is between the outer peripheral portion of the nipple 12 and the inner peripheral portion of the socket 14. An annular space S1 is formed.
Further, on the inner peripheral surface of the socket 14, a plurality of locking convex portions 1402 are spaced apart in the axial direction over the entire circumference in the circumferential direction of the socket 14, and in the present embodiment, four locking protrusions 1402 are provided. A convex portion 1402 is provided. Of course, the present invention can also be applied to the socket 14 that does not have the locking convex portion 1402.
Reference numeral 16 in the figure indicates a hose.

図１、図１６～図２２に示すように、加締め装置２０は、ニップル１２の外周部とソケット１４の内周面との間の環状空間Ｓ１に、環状空間Ｓ１の延在方向の一端Ｅ１の開口１８から他端Ｅ２に向けてホース１６が挿入された状態のホース継手金具１０を、ソケット１４の軸心方向に延在する加締め空間Ｓ２に挿入し、加締め空間Ｓ２の周方向に分割された複数の加締め爪集合体２２が、加締め空間Ｓ２の半径方向外側から内側に移動し、ソケット１４を加締め、ホース継手金具１０とホース１６とを連結するものである。
加締め装置２０は、加締め爪集合体２２と、基台２４と、支持部材２６と、ガイド部材２７と、弾性部材２８と、カムリング３０と、移動部３２とを含んで構成されている。 As shown in FIGS. 1 and 16 to 22, the crimping device 20 has an annular space S1 between the outer peripheral portion of the nipple 12 and the inner peripheral surface of the socket 14, and one end E1 in the extending direction of the annular space S1. The hose joint fitting 10 in which the hose 16 is inserted from the opening 18 toward the other end E2 is inserted into the crimping space S2 extending in the axial direction of the socket 14, and is inserted in the circumferential direction of the crimping space S2. A plurality of the divided crimping claw aggregates 22 move from the outside in the radial direction of the crimping space S2 to the inside, crimp the socket 14, and connect the hose joint fitting 10 and the hose 16.
The crimping device 20 includes a crimping claw assembly 22, a base 24, a support member 26, a guide member 27, an elastic member 28, a cam ring 30, and a moving portion 32.

図２に示すように、加締め爪集合体２２は、８つ設けられている。加締め爪集合体２２の数は、ホース継手金具１０の仕様により適宜決定され、３つ以上であればよく、実施の形態の数に限定されない。
図２、図３に示すように、各加締め爪集合体２２は、加締め空間Ｓ２の延在方向に並べられた複数の加締め爪分割体３４で構成されている。
図２、図９に示すように、複数の加締め爪集合体２２の各加締め爪分割体３４は、それぞれ並べられた順番毎に加締め空間Ｓ２の延在方向において同一の箇所に位置するように配置されている。
本実施の形態では、加締め爪集合体２２を構成する加締め爪分割体３４の数は５つであるが、加締め爪分割体３４の数は、ホース継手金具１０の仕様により適宜決定され、２つ以上であればよく、実施の形態の数に限定されない。 As shown in FIG. 2, eight crimping claw aggregates 22 are provided. The number of the crimping claw aggregates 22 is appropriately determined by the specifications of the hose joint fitting 10, and may be 3 or more, and is not limited to the number of embodiments.
As shown in FIGS. 2 and 3, each crimping claw assembly 22 is composed of a plurality of crimping claw split bodies 34 arranged in the extending direction of the crimping space S2.
As shown in FIGS. 2 and 9, each of the crimping claw splitting bodies 34 of the plurality of crimping claw aggregates 22 is located at the same position in the extending direction of the crimping space S2 in the order in which they are arranged. It is arranged like this.
In the present embodiment, the number of the crimping claw splitting bodies 34 constituting the crimping claw assembly 22 is 5, but the number of the crimping claw splitting bodies 34 is appropriately determined by the specifications of the hose joint fitting 10. It may be two or more, and is not limited to the number of embodiments.

図３に示すように、加締め爪分割体３４は断面が矩形の細長形状を呈し、その長手方向の一端がソケット１４を加締める円弧状の爪部３４０２となっており、その長手方向の他端が基端３４０４となっている。
加締め爪分割体３４の基端３４０４寄りの箇所には、加締め爪分割体３４の長手方向に沿った長溝３４０６が形成されている。
なお、加締め爪分割体３４が並べられた方向の端部に位置する加締め爪分割体３４には、長溝３４０６に代えてねじ孔３４０８が形成されている。
このねじ孔３４０８には、各加締め爪分割体３４の長溝３４０６に挿通されたボルト３４１０が締結されている。
なお、図２に示すように、加締め空間Ｓ２は、複数の加締め爪集合体２２の全ての加締め爪分割体３４の爪部３４０２の内側に形成される空間であり、断面がほぼ円形の輪郭を呈している。 As shown in FIG. 3, the crimping claw split body 34 has an elongated shape with a rectangular cross section, and one end in the longitudinal direction thereof is an arcuate claw portion 3402 for crimping the socket 14, and the other in the longitudinal direction thereof. The end is the base end 3404.
A long groove 3406 along the longitudinal direction of the crimping claw splitting body 34 is formed at a position near the base end 3404 of the crimping claw splitting body 34.
The crimping claw splitting body 34 located at the end in the direction in which the crimping claw splitting body 34 is arranged is formed with a screw hole 3408 instead of the long groove 3406.
A bolt 3410 inserted into a long groove 3406 of each crimping claw split body 34 is fastened to the screw hole 3408.
As shown in FIG. 2, the crimping space S2 is a space formed inside the claw portions 3402 of all the crimping claw split bodies 34 of the plurality of crimping claw aggregates 22, and has a substantially circular cross section. It has the outline of.

図１に示すように、支持部材２６は、複数の加締め爪集合体２２の加締め爪分割体３４を、その長手方向を加締め空間Ｓ２の半径方向に延在させ爪部３４０２を加締め空間Ｓ２に向けて加締め空間Ｓ２の半径方向に移動可能に支持するものである。
支持部材２６は、本体部３６と、押え板３８とを含んで構成されている。
図４に示すように、本体部３６は、中心孔３６０２が貫通形成された環板状の部材の一方の端面に、加締め爪集合体２２の数に対応した数の複数の凹溝３６０４が形成されている。
複数の凹溝３６０４は、支持部材２６の周方向に等間隔をおき、支持部材２６の半径方向に延在している。
また、環板状の部材の一方の端面には、凹溝３６０４で挟まれた複数の扇状端面３６０６が形成され、各扇状端面３６０６にはねじ孔３６０８が形成されている。
また、環板状の部材の他方の端面寄りの外周面の全周にわたってガイド溝３６１０が形成されている。
また、図７に示すように、環板状の部材の他方の端面には、周方向に間隔をおいて複数のねじ孔３６１２が形成され、図７、図８に示すように、基台２４の脚部２４０２の上部のボルト挿通孔２４２０に挿通されたボルト３６１４がねじ孔３６１２に螺合することで支持部材２６は基台２４の脚部２４０２の上部に固定されている。
なお、図７、図８において、符号２４１０は、ホース継手金具１０の先部が挿入される、脚部２４０２の上部に形成された開口を示す。 As shown in FIG. 1, the support member 26 extends the crimping claw split body 34 of a plurality of crimping claw aggregates 22 in the longitudinal direction in the radial direction of the crimping space S2 to crimp the claw portion 3402. It is movably supported in the radial direction of the crimping space S2 toward the space S2.
The support member 26 includes a main body portion 36 and a pressing plate 38.
As shown in FIG. 4, the main body portion 36 has a plurality of recessed grooves 3604 corresponding to the number of the crimping claw aggregates 22 on one end surface of the ring plate-shaped member through which the central hole 3602 is formed. It is formed.
The plurality of concave grooves 3604 are evenly spaced in the circumferential direction of the support member 26 and extend in the radial direction of the support member 26.
Further, a plurality of fan-shaped end faces 3606 sandwiched between the concave grooves 3604 are formed on one end face of the ring plate-shaped member, and screw holes 3608 are formed on each fan-shaped end face 3606.
Further, a guide groove 3610 is formed over the entire circumference of the outer peripheral surface of the ring plate-shaped member near the other end surface.
Further, as shown in FIG. 7, a plurality of screw holes 3612 are formed on the other end surface of the ring plate-shaped member at intervals in the circumferential direction, and as shown in FIGS. 7 and 8, the base 24 is formed. The support member 26 is fixed to the upper part of the leg portion 2402 of the base 24 by screwing the bolt 3614 inserted into the bolt insertion hole 2420 on the upper portion of the leg portion 2402 into the screw hole 3612.
In FIGS. 7 and 8, reference numeral 2410 indicates an opening formed in the upper part of the leg portion 2402 into which the tip portion of the hose joint fitting 10 is inserted.

図８に示すように、ガイド部材２７は、一対の半円弧状の板状の分割体２７０１で構成され、分割体２７０１の延在方向に間隔をおいた複数箇所にボルト挿通孔２７０２が形成されている。
図７、図８に示すように、一対の分割体２７０１は、それらの半径方向内側の内周部２７０４が支持部材２６のガイド溝３６１０に挿入された状態で、ボルト挿通孔２７０２を挿通したボルト２７０６が後述するフレーム側支持部材４４のねじ孔４４０６に螺合されることで、一対の分割体２７０１はフレーム側支持部材４４に締結されている。
これにより、フレーム側支持部材４４は、ガイド部材２７を介して支持部材２６に対して回転可能に支持されている。
ここで、支持部材２６は基台２４の脚部２４０２の上部に固定されているので、フレーム側支持部材４４は、ガイド部材２７および支持部材２６を介して基台２４の脚部２４０２の上部に対して回転可能に支持されることになる。 As shown in FIG. 8, the guide member 27 is composed of a pair of semicircular plate-shaped divided bodies 2701, and bolt insertion holes 2702 are formed at a plurality of positions spaced apart in the extending direction of the divided body 2701. ing.
As shown in FIGS. 7 and 8, in the pair of divided bodies 2701, a bolt having a bolt insertion hole 2702 inserted in a state where the inner peripheral portion 2704 on the inner side in the radial direction thereof is inserted into the guide groove 3610 of the support member 26. The pair of divided bodies 2701 is fastened to the frame side support member 44 by screwing the 2706 into the screw hole 4406 of the frame side support member 44 described later.
As a result, the frame-side support member 44 is rotatably supported with respect to the support member 26 via the guide member 27.
Here, since the support member 26 is fixed to the upper part of the leg portion 2402 of the base 24, the frame side support member 44 is attached to the upper part of the leg portion 2402 of the base 24 via the guide member 27 and the support member 26. On the other hand, it will be rotatably supported.

図５に示すように、押え板３８は環板状を呈し、周方向に等間隔をおいてボルト挿通孔３８０２が形成されている。
複数の凹溝３６０４に複数の加締め爪集合体２２がそれぞれ収容され、この状態で複数の扇状端面３６０６に押え板３８が当て付けられ、ボルト挿通孔３８０２に挿通されねじ孔３６０８に螺合するボルト３９（図１参照）により押え板３８が本体部３６に固定される。
これにより複数の加締め爪集合体２２をそれぞれ構成する複数の加締め爪分割体３４は、その長手方向を加締め空間Ｓ２の半径方向に延在させ爪部３４０２を加締め空間Ｓ２に向けて加締め空間Ｓ２の半径方向に移動可能に支持部材２６で支持される。 As shown in FIG. 5, the holding plate 38 has a ring plate shape, and bolt insertion holes 3802 are formed at equal intervals in the circumferential direction.
A plurality of crimping claw aggregates 22 are housed in a plurality of recessed grooves 3604, respectively. In this state, a pressing plate 38 is attached to a plurality of fan-shaped end faces 3606, inserted through a bolt insertion hole 3802, and screwed into a screw hole 3608. The holding plate 38 is fixed to the main body 36 by bolts 39 (see FIG. 1).
As a result, the plurality of crimping claw split bodies 34 constituting the plurality of crimping claw aggregates 22 extend their longitudinal directions in the radial direction of the crimping space S2, and the claw portion 3402 is directed toward the crimping space S2. It is supported by the support member 26 so as to be movable in the radial direction of the crimping space S2.

図１に示すように、カムリング３０は、複数の加締め爪集合体２２および支持部材２６を収容している。
図６に示すように、カムリング３０は、環板状を呈し、カムリング３０の半径方向内側の空間が複数の加締め爪集合体２２および支持部材２６を収容する収容空間となっている。
カムリング３０は、その内周部に周方向に延在するカム面集合体４０を有している。
カム面集合体４０は、加締め爪分割体３４の数に対応しカムリング３０の軸心方向に並べられて複数設けられている。
各カム面集合体４０は、加締め空間Ｓ２の延在方向において同一の箇所に配置された複数の加締め爪分割体３４に対応して設けられたカム面４２がカムリング３０の周方向に並べられることで構成されている。 As shown in FIG. 1, the cam ring 30 accommodates a plurality of crimping claw aggregates 22 and a support member 26.
As shown in FIG. 6, the cam ring 30 has a ring plate shape, and the space inside the cam ring 30 in the radial direction is a storage space for accommodating a plurality of crimping claw aggregates 22 and a support member 26.
The cam ring 30 has a cam surface aggregate 40 extending in the circumferential direction on the inner peripheral portion thereof.
A plurality of cam surface aggregates 40 are provided so as to correspond to the number of crimping claw split bodies 34 and are arranged in the axial direction of the cam ring 30.
In each cam surface aggregate 40, cam surfaces 42 provided corresponding to a plurality of crimping claw split bodies 34 arranged at the same position in the extending direction of the crimping space S2 are arranged in the circumferential direction of the cam ring 30. It is composed of being.

本実施の形態では、加締め爪集合体２２はそれぞれ５つの加締め爪分割体３４で構成され、したがってカム面集合体４０は５個設けられている。
また、本実施の形態では、加締め爪集合体２２は８つ設けられ、したがって、１つのカム面集合体４０にカム面４２が８つ設けられている。
すなわち、各カム面集合体４０は、加締め空間Ｓ２の延在方向において同一の箇所に配置された８つの加締め爪分割体３４に対応して設けられた８つのカム面４２がカムリング３０の周方向に並べられることで構成されている。
また、複数のカム面集合体４０は、各加締め爪集合体２２を構成する複数（５つ）の加締め爪分割体３４をカムリング３０の半径方向外側から半径方向内側に移動させる複数のカム面４２毎に、それらカム面４２がカムリング３０の軸心方向に並べられたカム面列４２Ａを複数（８つ）有している。 In the present embodiment, each of the crimping claw aggregates 22 is composed of five crimping claw split bodies 34, and therefore five cam surface aggregates 40 are provided.
Further, in the present embodiment, eight crimping claw aggregates 22 are provided, and therefore, eight cam surfaces 42 are provided on one cam surface aggregate 40.
That is, in each cam surface aggregate 40, the eight cam surfaces 42 provided corresponding to the eight crimping claw split bodies 34 arranged at the same position in the extending direction of the crimping space S2 are the cam rings 30. It is composed of being arranged in the circumferential direction.
Further, the plurality of cam surface aggregates 40 are a plurality of cams that move the plurality (five) of the crimping claw splitting bodies 34 constituting each crimping claw aggregate 22 from the radial outside to the radial inward of the cam ring 30. For each surface 42, the cam surfaces 42 have a plurality (8) of cam surface rows 42A arranged in the axial direction of the cam ring 30.

カム面集合体４０を構成する複数（８つ）のカム面４２は、加締め空間Ｓ２の延在方向において同一の箇所に配置された複数（８つ）の加締め爪分割体３４による加締めが安定した状態で確実になされるように同一の形状で形成され、カム面４２の形状はカム面集合体４０毎に異なる。 The plurality of (eight) cam surfaces 42 constituting the cam surface aggregate 40 are crimped by the plurality of (eight) crimping claw split bodies 34 arranged at the same position in the extending direction of the crimping space S2. Is formed in the same shape so as to be ensured in a stable state, and the shape of the cam surface 42 is different for each cam surface aggregate 40.

カム面４２は、加締め爪分割体３４の基端３４０４が接触することで、爪部３４０２を加締めるべきソケット１４の外周面からその半径方向外側に離れた退避位置に位置させる退避位置用面４２０２と、カムリング３０の回転により爪部３４０２を退避位置からカムリング３０の半径方向内側に移動させソケット１４を次第に加締めていく加締め用面４２０４とを有している。
加締め用面４２０４は、カムリング３０の回転に伴って爪部３４０２が退避位置から加締め位置に移動し始める始端を有し、この始端と退避位置用面４２０２の終端とはカムリング３０の周方向において位相が一致している。
また、加締め用面４２０４は、カムリング３０の回転に伴って爪部３４０２が加締め位置から退避位置に移動し始める終端を有し、この終端は退避位置用面４２０２の始端とはカムリング３０の周方向において位相が一致している。 The cam surface 42 is a retractable position surface that positions the claw portion 3402 at a retracted position radially outward from the outer peripheral surface of the socket 14 to be crimped by contacting the base end 3404 of the crimping claw split body 34. It has a 4202 and a crimping surface 4204 that moves the claw portion 3402 from the retracted position inward in the radial direction of the cam ring 30 by the rotation of the cam ring 30 and gradually crimps the socket 14.
The crimping surface 4204 has a start end at which the claw portion 3402 starts to move from the retracted position to the crimping position with the rotation of the cam ring 30, and the start end and the end of the retracted position surface 4202 are in the circumferential direction of the cam ring 30. Are in phase with each other.
Further, the crimping surface 4204 has a terminal at which the claw portion 3402 starts to move from the crimping position to the retracted position with the rotation of the cam ring 30, and this end is the start end of the retracted position surface 4202 and the cam ring 30. The phases match in the circumferential direction.

本実施の形態では、複数のカム面集合体４０を構成する複数のカム面４２は、環状空間Ｓ１の延在方向の他端Ｅ２に対向する加締め爪分割体３４から環状空間Ｓ１の延在方向の一端Ｅ１に対向する加締め爪分割体３４に向けて、加締め空間Ｓ２の延在方向毎に順に加締め空間Ｓ２の半径方向外側から内側に移動させるように構成されている（図１６～図２２）。
すなわち、各カム面列４２Ａを構成する複数のカム面４２の加締め用面４２０４の始端は、カムリング３０の周方向において位相がずれた箇所に位置している。
詳細に説明すると、後述するフレーム側支持部材４４の筒部４４０２の底部４４０４に最も近いカム面集合体４０を構成するカム面４２は、すなわち、環状空間Ｓ１の延在方向の他端Ｅ２側に最も近いカム面集合体４０を構成するカム面４２は、図６に示すように、退避位置用面４２０２のカムリング３０の周方向に沿った長さが最も短く、この退避位置用面４２０２は、筒部４４０２の底部４４０４から離れるカム面集合体４０毎に、すなわち、環状空間Ｓ１の延在方向の他端Ｅ２から離れる毎に次第に長くなる。
また、フレーム側支持部材４４の筒部４４０２の底部４４０４に最も近いカム面集合体４０を構成するカム面４２は、すなわち、環状空間Ｓ１の延在方向の他端Ｅ２側に最も近いカム面集合体４０を構成するカム面４２は、加締め用面４２０４のカムリング３０の周方向に沿った長さが最も長く、この加締め用面４２０４のカム面４２は、筒部４４０２の底部４４０４から離れるカム面集合体４０毎に、すなわち、環状空間Ｓ１の延在方向の他端Ｅ２から離れる毎に次第に短くなる。 In the present embodiment, the plurality of cam surfaces 42 constituting the plurality of cam surface aggregates 40 extend the annular space S1 from the crimping claw split body 34 facing the other end E2 in the extending direction of the annular space S1. It is configured to move from the outside to the inside in the radial direction of the crimping space S2 in order for each extending direction of the crimping space S2 toward the crimping claw split body 34 facing one end E1 in the direction (FIG. 16). ~ FIG. 22).
That is, the starting ends of the crimping surfaces 4204 of the plurality of cam surfaces 42 constituting each cam surface row 42A are located at locations that are out of phase in the circumferential direction of the cam ring 30.
More specifically, the cam surface 42 constituting the cam surface aggregate 40 closest to the bottom 4404 of the tubular portion 4402 of the frame side support member 44, which will be described later, is on the other end E2 side of the annular space S1 in the extending direction. As shown in FIG. 6, the cam surface 42 constituting the closest cam surface aggregate 40 has the shortest length along the circumferential direction of the cam ring 30 of the retracted position surface 4202, and the retracted position surface 4202 has the shortest length. It gradually becomes longer for each cam surface aggregate 40 away from the bottom 4404 of the tubular portion 4402, that is, for each distance from the other end E2 in the extending direction of the annular space S1.
Further, the cam surface 42 constituting the cam surface aggregate 40 closest to the bottom 4404 of the tubular portion 4402 of the frame side support member 44, that is, the cam surface aggregate closest to the other end E2 side in the extending direction of the annular space S1. The cam surface 42 constituting the body 40 has the longest length along the circumferential direction of the cam ring 30 of the crimping surface 4204, and the cam surface 42 of the crimping surface 4204 is separated from the bottom 4404 of the tubular portion 4402. It gradually becomes shorter for each cam surface aggregate 40, that is, for each distance from the other end E2 in the extending direction of the annular space S1.

また、全てのカム面集合体４０において、カムリング３０の周方向の位相がほぼ等しい複数のカム面４２の加締め用面４２０４の終端は、図６に直線Ｌ１で示されるようにカムリング３０の周方向において同一の箇所に位置している。
言い換えると、各カム面列４２Ａを構成する複数のカム面４０の加締め用面４２０４の終端は、各カム面列４２Ａ毎に、カムリング３０の周方向において同一の位相の箇所に位置し、図６に複数のカム面４０の加締め用面４２０４の終端を直線Ｌ１で示している。
なお、加締め用面４２０４は、退避位置用面４２０２から急激に上昇する傾斜面４２０４Ａを含んで構成され、フレーム側支持部材４４の筒部４４０２の底部４４０４から最も離れたカム面集合体４０のカム面４２の傾斜面４２０４Ａの終端と、この終端を通りカムリング３０の軸心方向と平行する方向に延在する残りのカム面集合体４０のカム面４２の加締め用面４２０４の箇所とは、図６に直線Ｌ２で示されるように、カムリング３０の半径方向において同一の高さに位置している。
また、全てのカム面集合体４０において、図６に直線Ｌ１と直線Ｌ２との間のカム面４２の加締め用面４２０４は、同一の形状で形成されている。
なお、後述する油圧シリンダ４６によるカムリング３０の所定角度範囲内の回転は、全ての加締め爪集合体２２の全ての加締め爪分割体３４の基端３４０４が、退避位置用面４２０２と、直線Ｌ１と直線Ｌ２の間に位置する加締め用面４２０４の箇所との間で接触するようになされる。 Further, in all the cam surface aggregates 40, the end of the crimping surface 4204 of the plurality of cam surfaces 42 having substantially the same circumferential phase of the cam ring 30 is the circumference of the cam ring 30 as shown by the straight line L1 in FIG. They are located in the same place in the direction.
In other words, the end of the crimping surface 4204 of the plurality of cam surfaces 40 constituting each cam surface row 42A is located at the same phase in the circumferential direction of the cam ring 30 for each cam surface row 42A. Reference numeral 6 indicates the end of the crimping surface 4204 of the plurality of cam surfaces 40 by a straight line L1.
The crimping surface 4204 is configured to include an inclined surface 4204A that rapidly rises from the retracted position surface 4202, and is the cam surface aggregate 40 farthest from the bottom 4404 of the tubular portion 4402 of the frame side support member 44. What is the end of the inclined surface 4204A of the cam surface 42 and the location of the crimping surface 4204 of the cam surface 42 of the remaining cam surface aggregate 40 extending in the direction parallel to the axial direction of the cam ring 30 through this end? , As shown by the straight line L2 in FIG. 6, they are located at the same height in the radial direction of the cam ring 30.
Further, in all the cam surface aggregates 40, the crimping surface 4204 of the cam surface 42 between the straight line L1 and the straight line L2 is formed in the same shape in FIG.
When the cam ring 30 is rotated within a predetermined angle range by the hydraulic cylinder 46, which will be described later, the base end 3404 of all the crimping claw splitting bodies 34 of all the crimping claw aggregates 22 is in a straight line with the retracting position surface 4202. The crimping surface 4204 located between L1 and the straight line L2 is brought into contact with each other.

本実施の形態では、図１、図７に示すように、基台２４の脚部２４０２の上部にフレーム側支持部材４４が回転可能に設けられている。
フレーム側支持部材４４は、カムリング３０がその内周部に固定される筒部４４０２を有している。
カムリング３０の筒部４４０２への取り付けは、図１、図６、図７に示すように、カムリング３０の周方向に間隔をおいた複数のボルト挿通孔３００１に挿通されたボルト３００２が、筒部４４０２の底部４４０４のねじ孔４４０８に締結されることでなされている。
なお、本実施の形態では、カムリング３０とフレーム側支持部材４４とが別々の部材で形成されているが、一体に形成してもよいことは無論のことである。 In the present embodiment, as shown in FIGS. 1 and 7, a frame-side support member 44 is rotatably provided on the upper portion of the leg portion 2402 of the base 24.
The frame-side support member 44 has a tubular portion 4402 to which the cam ring 30 is fixed to the inner peripheral portion thereof.
As shown in FIGS. 1, 6, and 7, the cam ring 30 is attached to the tubular portion 4402 by bolts 3002 inserted into a plurality of bolt insertion holes 3001 spaced in the circumferential direction of the cam ring 30. It is made by fastening to the screw hole 4408 of the bottom 4404 of the 4402.
In the present embodiment, the cam ring 30 and the frame-side support member 44 are formed of separate members, but it goes without saying that the cam ring 30 and the frame-side support member 44 may be formed integrally.

油圧シリンダ４６は、図１に示すように、シリンダ本体４６０１の基端が基台２４で回転可能に支持され、ピストンロッド４６０２の先端が連結部材４８を介してフレーム側支持部材４４の筒部４４０２に連結され、油圧シリンダ４６の伸長作動により所定の角度範囲でフレーム側支持部材４４が回転する。
すなわち、油圧シリンダ４６の伸長作動によりフレーム側支持部材４４が正転し、油圧シリンダ４６の縮小作動によりフレーム側支持部材４４が逆転し、カムリング３０が所定の角度範囲で正逆転される。 As shown in FIG. 1, in the hydraulic cylinder 46, the base end of the cylinder body 4601 is rotatably supported by the base 24, and the tip of the piston rod 4602 is supported by the cylinder portion 4402 of the frame side support member 44 via the connecting member 48. The frame-side support member 44 rotates within a predetermined angle range by the extension operation of the hydraulic cylinder 46.
That is, the frame-side support member 44 rotates forward due to the extension operation of the hydraulic cylinder 46, the frame-side support member 44 reverses due to the contraction operation of the hydraulic cylinder 46, and the cam ring 30 is forward-reversed within a predetermined angle range.

弾性部材２８は、図１、図３、図７に示すように、各加締め爪集合体２２毎に設けられている。
弾性部材２８は、加締め爪分割体３４のねじ孔３４０８に締結され、各加締め爪分割体３４の長溝３４０６に挿通されたボルト３４１０の頭部とフレーム側支持部材４４の筒部４４０２の端面４４０３に設けられたボルト４４１０の頭部とにわたって張設されている。
このように弾性部材２８が設けられることにより、各加締め爪集合体２２を構成する複数の加締め爪分割体３４は、ボルト３４１０がねじ孔３４０８に締結された箇所を介して、また、ボルト３４１０の軸部が長溝３４０６の端部に係止した箇所を介して弾性部材２８の弾性力が作用し、各加締め爪集合体２２を構成する全ての加締め爪分割体３４がカムリング３０の半径方向外側に付勢され、それらの基端３４０４がカム面４２に接触している。
本実施の形態では、カムリング３０を回転させるアクチュエータが油圧シリンダ４６で構成されている。 As shown in FIGS. 1, 3, and 7, the elastic member 28 is provided for each crimping claw assembly 22.
The elastic member 28 is fastened to the screw hole 3408 of the crimping claw split body 34, and the head of the bolt 3410 inserted into the long groove 3406 of each crimping claw split body 34 and the end face of the tubular portion 4402 of the frame side support member 44. It is stretched over the head of the bolt 4410 provided on the 4403.
By providing the elastic member 28 in this way, the plurality of crimping claw splitting bodies 34 constituting each crimping claw assembly 22 can be provided via the portion where the bolt 3410 is fastened to the screw hole 3408, and the bolt. The elastic force of the elastic member 28 acts through the portion where the shaft portion of the 3410 is locked to the end portion of the long groove 3406, and all the crimping claw split bodies 34 constituting each crimping claw assembly 22 act on the cam ring 30. It is urged outward in the radial direction, and their base ends 3404 are in contact with the cam surface 42.
In this embodiment, the actuator for rotating the cam ring 30 is composed of a hydraulic cylinder 46.

また、本実施の形態では、複数の加締め爪を構成する複数の加締め爪集合体２２の加締め爪分割体３４を、加締め空間Ｓ２の延在方向において同一の箇所に配置された複数の加締め爪分割体３４毎に、加締め空間Ｓ２の半径方向外側から内側に移動させる移動部３２が、支持部材２６、弾性部材２８、カムリング３０、アクチュエータ（油圧シリンダ４６）を含んで構成されている。
なお、加締め空間Ｓ２は、複数の加締め爪集合体２２の全ての加締め爪分割体３４の爪部３４０２の内側に形成される空間であり、各加締め爪分割体３４の基端３４０４は弾性部材２８によりカム面４２に接触しているため、加締め空間Ｓ２の軸心とカムリング３０の軸心とは一致している。 Further, in the present embodiment, a plurality of crimping claw split bodies 34 of a plurality of crimping claw aggregates 22 constituting the plurality of crimping claws are arranged at the same position in the extending direction of the crimping space S2. A moving portion 32 for moving the crimping space S2 from the outside to the inside in the radial direction is configured to include a support member 26, an elastic member 28, a cam ring 30, and an actuator (hydraulic cylinder 46) for each crimping claw split body 34. ing.
The crimping space S2 is a space formed inside the claw portions 3402 of all the crimping claw split bodies 34 of the plurality of crimping claw aggregates 22, and is the base end 3404 of each crimping claw split body 34. Is in contact with the cam surface 42 by the elastic member 28, so that the axial center of the crimping space S2 and the axial center of the cam ring 30 coincide with each other.

次に本実施の形態の加締め装置２０の動作について説明する。
図９、図１６に示すように、複数の加締め爪集合体２２の全ての加締め爪分割体３４は、弾性部材２８の弾性力によりそれらの基端３４０４が退避位置用面４２０２に接触しており、複数の加締め爪集合体２２の全ての加締め爪分割体３４の爪部３４０２は、ソケット１４の外周面から半径方向外側に離れた退避位置に位置している。
ここで、ニップル１２の外周部とソケット１４の内周部との間にホース１６が挿入された状態のホース継手金具１０を、フレーム側支持部材４４の筒部４４０２の端面４４０３側から、ホース１６と反対に位置するホース継手金具１０の端部を先頭として加締め空間Ｓ２に挿入する。図１、図７、図１６において矢印Ａは、ホース継手金具１０の挿入方向を示している。 Next, the operation of the crimping device 20 of the present embodiment will be described.
As shown in FIGS. 9 and 16, in all the crimping claw split bodies 34 of the plurality of crimping claw aggregates 22, their base ends 3404 come into contact with the retracted position surface 4202 due to the elastic force of the elastic member 28. The claw portions 3402 of all the crimping claw split bodies 34 of the plurality of crimping claw aggregates 22 are located at retracted positions separated radially outward from the outer peripheral surface of the socket 14.
Here, the hose joint fitting 10 in a state where the hose 16 is inserted between the outer peripheral portion of the nipple 12 and the inner peripheral portion of the socket 14 is inserted from the end surface 4403 side of the tubular portion 4402 of the frame side support member 44 to the hose 16. The hose joint fitting 10 located opposite to the above is inserted into the crimping space S2 with the end portion as the head. In FIGS. 1, 7, and 16, the arrow A indicates the insertion direction of the hose joint fitting 10.

ここで、油圧シリンダ４６を伸長作動させ、フレーム側支持部材４４およびカムリング３０を所定の角度の範囲で正転させる。
カムリング３０の正転に伴って、まず図１０、図１７に示すように、複数の加締め爪集合体２２をそれぞれ構成する加締め爪分割体３４のうち、最も筒部４４０２の底部４４０４側に位置する複数（８つ）の加締め爪分割体３４がまずカム面４２の加締め用面４２０４により半径方向内側に同一の速度、移動量で移動され、ソケット１４の加締め範囲のゴムホース１６と反対側の端部が加締められ始める。
さらなるカムリング３０の正転に伴って、図１１、図１８に示すように、筒部４４０２の底部４４０４側から２番めの複数（８つ）の加締め爪分割体３４が、カム面４２の加締め用面４２０４により半径方向内側に同一の速度、移動量で移動され、ソケット１４の加締め範囲のゴムホース１６と反対側の端部に続くソケット１４の部分が加締められ始める。 Here, the hydraulic cylinder 46 is extended and operated to rotate the frame side support member 44 and the cam ring 30 in the normal direction within a predetermined angle range.
As the cam ring 30 rotates in the normal direction, first, as shown in FIGS. 10 and 17, among the crimping claw split bodies 34 constituting the plurality of crimping claw aggregates 22, the most on the bottom 4404 side of the tubular portion 4402. The plurality of (8) crimping claw split bodies 34 located are first moved inward in the radial direction by the crimping surface 4204 of the cam surface 42 at the same speed and movement amount, and then with the rubber hose 16 in the crimping range of the socket 14. The opposite end begins to be crimped.
With the further forward rotation of the cam ring 30, as shown in FIGS. 11 and 18, the second plurality (8) of the crimping claw splitting bodies 34 from the bottom 4404 side of the tubular portion 4402 are on the cam surface 42. It is moved inward in the radial direction by the crimping surface 4204 at the same speed and movement amount, and the portion of the socket 14 following the end opposite to the rubber hose 16 in the crimping range of the socket 14 begins to be crimped.

このようにカムリング３０の軸方向において同一の箇所に配置された複数（８つ）の加締め爪分割体３４毎に、ソケット１４は、ソケット１４から露出するホース１６と反対側の端部から順番に同一の速度、移動量で加締められ始める（図１２～図１４、図１９～図２１）。
本実施の形態では、図６に示すように、直線Ｌ１と直線Ｌ２との間のカム面４２の加締め用面４２０４は、フレーム側支持部材４４の筒部４４０２の底部４４０４から最も離れたカム面４２の傾斜面４２０４Ａを除いた加締め用面４２０４と同一の形状で形成されているので、筒部４４０２の底部４４０４から最も離れた複数（８つ）の加締め爪分割体３４がカム面４２の加締め用面４２０４により半径方向内側に同一の速度、移動量で移動される際には、複数（８つ）の加締め爪集合体２２の全ての加締め爪分割体３４が同一の速度、移動量で半径方向内側に移動し、ソケット１４の加締め範囲を均等に加締める（図１５、図２２）。 For each of the plurality (8) crimping claw split bodies 34 thus arranged at the same position in the axial direction of the cam ring 30, the socket 14 is ordered from the end opposite to the hose 16 exposed from the socket 14. It begins to be crimped at the same speed and movement amount (FIGS. 12 to 14, FIGS. 19 to 21).
In the present embodiment, as shown in FIG. 6, the crimping surface 4204 of the cam surface 42 between the straight line L1 and the straight line L2 is the cam farthest from the bottom 4404 of the tubular portion 4402 of the frame side support member 44. Since it is formed in the same shape as the crimping surface 4204 excluding the inclined surface 4204A of the surface 42, the plurality (8) crimping claw split bodies 34 farthest from the bottom 4404 of the tubular portion 4402 are cam surfaces. When the crimping surface 4204 of 42 moves inward in the radial direction at the same speed and the same amount of movement, all the crimping claw split bodies 34 of the plurality (8) crimping claw aggregates 22 are the same. It moves inward in the radial direction according to the speed and the amount of movement, and evenly crimps the crimping range of the socket 14 (FIGS. 15 and 22).

複数（８つ）の加締め爪集合体２２の全ての加締め爪分割体３４の基端３４０４がカム面４２の加締め用面４２０４の直線Ｌ１と直線Ｌ２との間の適宜箇所に位置することで、ソケット１４の加締め範囲が加締められ、ソケット１４の加締め範囲が加締められたならば、油圧シリンダ４６を縮小作動させカムリング３０を逆転させる。
カムリング３０の逆転により複数の加締め爪集合体２２の全ての加締め爪分割体３４は、弾性部材２８の弾性力により、それらの基端３４０４が退避位置用面４２０２に接触して退避位置用面４２０２の始端に至り、全ての加締め爪分割体３４の爪部３４０２は、ソケット１４の外周面の半径方向外側に離れた退避位置となる。
ここで、ホース継手金具１０に結合されたホース１６を取り出し、次にホース１６が結合され加締めるべきホース継手金具１０をフレーム側支持部材４４の筒部４４０２の底部４４０４側から加締め空間Ｓ２に挿入し、同様の動作を繰り返す。 The base ends 3404 of all the crimping claw splitting bodies 34 of the plurality (8) crimping claw aggregates 22 are located at appropriate positions between the straight line L1 and the straight line L2 of the crimping surface 4204 of the cam surface 42. As a result, when the crimping range of the socket 14 is crimped and the crimping range of the socket 14 is crimped, the hydraulic cylinder 46 is reduced and the cam ring 30 is reversed.
Due to the reversal of the cam ring 30, all the crimping claw split bodies 34 of the plurality of crimping claw aggregates 22 have their base ends 3404 in contact with the retracting position surface 4202 due to the elastic force of the elastic member 28 for the retracting position. Reaching the start end of the surface 4202, the claw portions 3402 of all the crimping claw split bodies 34 are retracted positions separated from the outer peripheral surface of the socket 14 in the radial direction.
Here, the hose 16 coupled to the hose joint fitting 10 is taken out, and then the hose fitting 10 to which the hose 16 is coupled and to be crimped is placed in the crimping space S2 from the bottom 4404 side of the tubular portion 4402 of the frame side support member 44. Insert and repeat the same operation.

次に本実施の形態の加締め装置２０の作用効果について説明する。
上述のように、ソケット１４の周方向に分割されソケット１４の軸心方向に沿って高さが均一の従来の複数の加締め爪でソケット１４を加締めると、加締められたホース１６の部分に追従してソケット１４の部分が変位する方向もばらつくため、ホース継手金具１０によるホース１６の取り付け強度にばらつきが生じる。
本実施の形態では、加締め空間Ｓ２の延在方向において同一の箇所に配置された複数の加締め爪分割体３４毎に、個別に加締め空間Ｓ２の半径方向外側から内側に移動できる構成となっている。
このようなことから実施の形態のように、ニップル１２の外周部とソケット１４の内周部との間の環状空間Ｓ１に、環状空間Ｓ１の延在方向の一端Ｅ１の開口１８から他端Ｅ２向けてホース１６が挿入された状態のホース継手金具１０を、ソケット１４の軸心方向に延在する加締め空間Ｓ２に挿入し、移動部３２によって、開口１８と反対に位置する環状空間Ｓ１の延在方向の他端Ｅ２に対向する加締め爪分割体３４から延在方向の一端Ｅ１に対向する加締め爪分割体３４に向けて、加締め空間Ｓ２の延在方向において同一の箇所に配置された複数の加締め爪分割体３４毎に順に加締め空間Ｓ２の半径方向外側から内側に移動させることができる。 Next, the operation and effect of the crimping device 20 of the present embodiment will be described.
As described above, when the socket 14 is crimped with a plurality of conventional crimping claws that are divided in the circumferential direction of the socket 14 and have a uniform height along the axial direction of the socket 14, the portion of the hose 16 that has been crimped is Since the direction in which the portion of the socket 14 is displaced varies in accordance with the above, the mounting strength of the hose 16 by the hose joint fitting 10 varies.
In the present embodiment, each of the plurality of crimping claw split bodies 34 arranged at the same location in the extending direction of the crimping space S2 can be individually moved from the outside to the inside in the radial direction of the crimping space S2. It has become.
Therefore, as in the embodiment, in the annular space S1 between the outer peripheral portion of the nipple 12 and the inner peripheral portion of the socket 14, the opening 18 of one end E1 of the annular space S1 in the extending direction to the other end E2 The hose joint fitting 10 in which the hose 16 is inserted is inserted into the crimping space S2 extending in the axial direction of the socket 14, and the annular space S1 located opposite to the opening 18 by the moving portion 32. Arranged at the same location in the extending direction of the crimping space S2 from the crimping claw split body 34 facing the other end E2 in the extending direction toward the crimping claw split body 34 facing the one end E1 in the extending direction. It is possible to move the crimping space S2 from the outside in the radial direction to the inside in order for each of the plurality of crimping claw split bodies 34.

したがって、加締め時に圧縮されるホース１６の部分のソケット１４の軸心方向に沿った変位の方向が環状空間Ｓ１の延在方向の他端Ｅ２から一端Ｅ１の開口１８に向かう方向となり、加締められたソケット１４の部分がホース１６の部分の変位に追従して変位する方向も上記と同じ方向となる。
そのため、順番に加締められたソケット１４の部分が順番にソケット１４の軸心方向の一方に伸びるように変位するので、ソケット１４の内周部の係止用凸部１４０２も順番にソケット１４の軸心方向の一方に変位するので、その変位量のばらつきも抑制される。
そのため、ソケット１４の軸心方向におけるソケット１４の係止用凸部１４０２のニップル１２に対する位置のばらつきを設計の範囲内とする上で有利となり、ホース継手金具１０によるホース１６の取り付け強度のばらつきの抑制を図る上で有利となる。 Therefore, the direction of displacement of the portion of the hose 16 that is compressed during crimping along the axial direction of the socket 14 is the direction from the other end E2 in the extending direction of the annular space S1 toward the opening 18 of one end E1. The direction in which the portion of the socket 14 is displaced following the displacement of the portion of the hose 16 is also the same as described above.
Therefore, since the portions of the socket 14 that have been crimped in order are displaced so as to extend in order to extend in one of the axial directions of the socket 14, the locking convex portion 1402 of the inner peripheral portion of the socket 14 is also sequentially displaced in the socket 14. Since it is displaced in one direction in the axial direction, variation in the amount of displacement is suppressed.
Therefore, it is advantageous to keep the variation in the position of the locking convex portion 1402 of the socket 14 with respect to the nipple 12 in the axial direction of the socket 14 within the design range, and the variation in the mounting strength of the hose 16 due to the hose joint fitting 10 is obtained. It is advantageous in trying to suppress it.

また、本発明では、複数の加締め爪集合体２２の加締め爪分割体３４をそれぞれ複数のアクチュエータにより移動させるようにしても良いが、本実施の形態のように、移動部３２を、複数の加締め爪集合体２２の加締め爪分割体３４を変位させる複数のカム面集合体４０を有するカムリング３０と、カムリング３０を回転させるアクチュエータとを含んで構成すると、移動部３２のコンパクト化、軽量化を図る上で有利となる。 Further, in the present invention, the crimping claw splitting bodies 34 of the plurality of crimping claw aggregates 22 may be moved by a plurality of actuators, respectively, but as in the present embodiment, a plurality of moving portions 32 are provided. When the cam ring 30 having a plurality of cam surface aggregates 40 for dislocating the crimping claw splitting body 34 of the crimping claw assembly 22 and the actuator for rotating the cam ring 30 are included, the moving portion 32 is made compact. It is advantageous in reducing the weight.

なお、本実施の形態では、環状空間Ｓ１の一端Ｅ１の開口１８と反対に位置する他端Ｅ２側のソケット１４の箇所から、開口１８側のソケット１４の箇所に向けて加締め爪分割体３４を順に加締め空間Ｓ２の半径方向外側から内側に移動させた場合について説明したが、このような移動させる加締め爪分割体３４の順番は任意であり、ソケット１４の係止用凸部１４０２の形状、数、係止用凸部１４０２の有無などの形態に応じてまたソケット１４やホース１６の材料などに応じて最適な加締めが行なわれるように適宜決定される。
また、本実施の形態では、ソケット１４が加締められた状態で、均一外径の外周面となる場合について説明したが、ソケット１４が加締められた状態で、ソケット１４の外周面に大径部と小径部とがソケット１４の軸心方向に並べられた形状となる形態などもある。このような場合、実施の形態のように加締め工程の後半において、すなわち、直線Ｌ１、Ｌ２の範囲において全ての加締め爪集合体２２の全ての加締め爪分割体３４を同一の速度、同一の変位で移動させる必要はなく、各加締め爪集合体２２の複数の加締め爪分割体３４により順次加締めを終了させていくなど任意であり、このような各加締め爪集合体２２の複数の加締め爪分割体３４の移動はソケット１４を加締めるべき形態に応じて適宜変形される。
また、本実施の形態では、一定の角度の範囲でカムリング３０を正逆転させた場合について説明したが、弾性部材２８を支持部材２６側に設けるなどにより、カムリング３０を逆転せずに正転のみしてもよい。 In the present embodiment, the crimping claw split body 34 is directed from the portion of the socket 14 on the other end E2 side located opposite to the opening 18 of one end E1 of the annular space S1 toward the location of the socket 14 on the opening 18 side. The case where the crimping spaces S2 are sequentially moved from the outside to the inside in the radial direction has been described, but the order of the crimping claw splitting bodies 34 to be moved in this way is arbitrary, and the locking convex portion 1402 of the socket 14 It is appropriately determined so that optimum crimping is performed according to the shape, the number, the presence / absence of the locking convex portion 1402, and the material of the socket 14 and the hose 16.
Further, in the present embodiment, the case where the outer peripheral surface having a uniform outer diameter is obtained when the socket 14 is crimped has been described, but the outer peripheral surface of the socket 14 has a large diameter when the socket 14 is crimped. There is also a form in which the portion and the small diameter portion are arranged in the axial direction of the socket 14. In such a case, in the latter half of the crimping step as in the embodiment, that is, in the range of the straight lines L1 and L2, all the crimping claw split bodies 34 of all the crimping claw aggregates 22 are set at the same speed and the same. It is not necessary to move by the displacement of, and it is optional such as sequentially ending the crimping by the plurality of crimping claw splitting bodies 34 of each crimping claw assembly 22. The movement of the plurality of crimping claw split bodies 34 is appropriately modified according to the form in which the socket 14 is to be crimped.
Further, in the present embodiment, the case where the cam ring 30 is forward-reversed within a range of a certain angle has been described, but by providing the elastic member 28 on the support member 26 side or the like, the cam ring 30 is not reversed but only forward-reversal. You may.

１０ ホース継手金具
１２ ニップル
１４ ソケット
１８ 開口
１６ ホース
２０ 加締め装置
２２ 加締め爪集合体
２６ 支持部材
２８ 弾性部材
３０ カムリング
３２ 移動部
３４ 加締め爪分割体
３４０２ 爪部
３４０４ 基端
４０ カム面集合体
４２ カム面
４２０２退避位置用面
４２０４加締め用面
４６ 油圧シリンダ（アクチュエータ）
Ｓ１ 環状空間
Ｓ２ 加締め空間
Ｅ１ 一端
Ｅ２ 他端 10 Hose fitting 12 Nipple 14 Socket 18 Opening 16 Hose 20 Tightening device 22 Tightening claw assembly 26 Support member 28 Elastic member 30 Cam ring 32 Moving part 34 Tightening claw split body 3402 Claw part 3404 Base end 40 Cam surface assembly 42 Cam surface 4202 Retracting position surface 4204 Crying surface 46 Hydraulic cylinder (actuator)
S1 annular space S2 crimping space E1 one end E2 other end

Claims (4)

ニップルの外周部とソケットの内周部との間でソケットの軸心方向に延在する環状空間に、前記環状空間の延在方向の一端の開口からホースが挿入されたホース継手金具を前記ソケットの軸心方向に延在する加締め空間に挿入し、前記加締め空間の周方向に並べられた複数の加締め爪を、前記加締め空間の半径方向外側から内側に移動し、前記ソケットを加締めるホース継手金具の加締め装置であって、
前記各加締め爪は、前記加締め空間の延在方向に並べられた複数の加締め爪分割体からなる加締め爪集合体で構成され、
複数の前記加締め爪集合体の各加締め爪分割体は、それぞれ並べられた順番毎に前記加締め空間の延在方向において同一の箇所に位置するように配置され、
前記開口と反対に位置する前記環状空間の延在方向の他端に対向する複数の前記加締め爪分割体から前記延在方向の一端に対向する複数の前記加締め爪分割体に向けて順に、前記加締め空間の延在方向において同一の箇所に配置された複数の前記加締め爪分割体毎に、前記加締め空間の半径方向外側から内側に移動させる移動部が設けられている、
ことを特徴とするホース継手金具の加締め装置。 In the annular space extending in the axial direction of the socket between the outer peripheral portion of the nipple and the inner peripheral portion of the socket, a hose joint fitting in which a hose is inserted from an opening at one end in the extending direction of the annular space is inserted into the socket. A plurality of crimping claws arranged in the circumferential direction of the crimping space are moved from the outside to the inside in the radial direction of the crimping space by inserting into the crimping space extending in the axial direction of the crimping space, and the socket is moved. It is a crimping device for hose fittings to be crimped.
Each of the crimping claws is composed of a crimping claw aggregate composed of a plurality of crimping claw split bodies arranged in the extending direction of the crimping space.
The crimping claw splits of the plurality of crimping claw aggregates are arranged so as to be located at the same position in the extending direction of the crimping space in the order in which they are arranged.
From the plurality of crimping claw splits facing the other end of the annular space opposite to the opening in the extending direction toward the plurality of crimping claw splits facing one end in the extending direction, in order. A moving portion for moving the crimping space from the outside in the radial direction to the inside is provided for each of the plurality of crimping claw split bodies arranged at the same position in the extending direction of the crimping space.
A crimping device for hose fittings. 前記移動部は、その内側空間に複数の前記加締め爪集合体を収容するカムリングと、前記カムリングを回転させるアクチュエータとを含んで構成され、
前記カムリングは、その内周部に周方向に延在するカム面集合体を有し、
前記カム面集合体は、前記加締め爪集合体を構成する複数の前記加締め爪分割体に対応し前記カムリングの軸心方向に並べられて複数設けられ、
前記各カム面集合体は、前記加締め空間の延在方向において同一の箇所に配置された複数の加締め爪分割体に対応して設けられた複数のカム面が前記カムリングの周方向に並べられて構成されている、
ことを特徴とする請求項１記載のホース継手金具の加締め装置。 The moving portion includes a cam ring for accommodating a plurality of the crimping claw aggregates in the inner space thereof, and an actuator for rotating the cam ring.
The cam ring has a cam surface aggregate extending in the circumferential direction on the inner peripheral portion thereof.
A plurality of the cam surface aggregates are provided so as to correspond to the plurality of the crimping claw split bodies constituting the crimping claw aggregate and arranged in the axial direction of the cam ring.
In each of the cam surface aggregates, a plurality of cam surfaces provided corresponding to a plurality of crimping claw split bodies arranged at the same position in the extending direction of the crimping space are arranged in the circumferential direction of the cam ring. Is composed of
The crimping device for a hose joint fitting according to claim 1. 前記加締め爪分割体は細長形状を呈し、その長手方向の一端が前記ソケットを加締める爪部となっており、その長手方向の他端が基端となっており、
前記各カム面は、前記基端が接触することで、加締めるべきソケットの外周面からその半径方向外側に離れた退避位置にそれら前記加締め爪分割体の前記爪部を位置させる退避位置用面と、前記カムリングの回転により前記加締め爪分割体の前記爪部を前記退避位置から前記カムリングの半径方向内側に移動させソケットを次第に加締めていく加締め用面とを有している、
ことを特徴とする請求項２記載のホース継手金具の加締め装置。 The crimping claw split body has an elongated shape, one end in the longitudinal direction thereof is a claw portion for crimping the socket, and the other end in the longitudinal direction thereof is a base end.
Each of the cam surfaces is for a retracted position in which the claw portion of the crimped claw split body is positioned at a retracted position radially outward from the outer peripheral surface of the socket to be crimped by contacting the base end. It has a surface and a surface for crimping that moves the claw portion of the crimping claw split body inward in the radial direction of the cam ring from the retracted position by the rotation of the cam ring and gradually crimps the socket.
The crimping device for a hose joint fitting according to claim 2. ニップルの外周部とソケットの内周部との間でソケットの軸心方向に延在する環状空間に、前記環状空間の延在方向の一端の開口からホースが挿入された継手金具を、前記ソケットの軸心方向に延在する加締め空間に挿入し、
前記加締め空間の周方向に分割された複数の加締め爪を、前記加締め空間の半径方向外側から内側に移動し、前記ソケットを加締めるホース継手金具の加締め方法であって、
前記各加締め爪を、前記加締め空間の延在方向に並べられた複数の加締め爪分割体からなる加締め爪集合体で構成し、
複数の前記加締め爪集合体の各加締め爪分割体を、それぞれ並べられた順番毎に前記加締め空間の延在方向において同一の箇所に位置するように配置し、
前記開口と反対に位置する前記環状空間の延在方向の他端に対向する複数の前記加締め爪分割体から前記延在方向の一端に対向する複数の前記加締め爪分割体に向けて順に、前記加締め空間の延在方向において同一の箇所に配置された複数の前記加締め爪分割体毎に前記加締め空間の半径方向外側から内側に移動させるようにした、
ことを特徴とするホース継手金具の加締め方法。 In the annular space extending in the axial direction of the socket between the outer peripheral portion of the nipple and the inner peripheral portion of the socket, a fitting fitting in which a hose is inserted from an opening at one end in the extending direction of the annular space is inserted into the socket. Insert into the crimping space extending in the axial direction of
A method of crimping a hose joint fitting that moves a plurality of crimping claws divided in the circumferential direction of the crimping space from the outside to the inside in the radial direction of the crimping space to crimp the socket.
Each of the crimping claws is composed of a crimping claw aggregate composed of a plurality of crimping claw split bodies arranged in the extending direction of the crimping space.
The crimping claw splits of the plurality of crimping claw aggregates are arranged so as to be located at the same position in the extending direction of the crimping space in the order in which they are arranged.
From the plurality of crimping claw splits facing the other end of the annular space opposite to the opening in the extending direction toward the plurality of crimping claw splits facing one end in the extending direction, in order. , Each of the plurality of crimping claw split bodies arranged at the same position in the extending direction of the crimping space is moved from the outside to the inside in the radial direction of the crimping space.
A method of crimping hose fittings, which is characterized by this.
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JP2007255667A (en) 2006-03-24 2007-10-04 Tokai Rubber Ind Ltd Method for manufacturing hose having joint, and caulking tool to be used in the same
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