JP6965467B1 - Rope hook - Google Patents

Rope hook Download PDF

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JP6965467B1
JP6965467B1 JP2021002199A JP2021002199A JP6965467B1 JP 6965467 B1 JP6965467 B1 JP 6965467B1 JP 2021002199 A JP2021002199 A JP 2021002199A JP 2021002199 A JP2021002199 A JP 2021002199A JP 6965467 B1 JP6965467 B1 JP 6965467B1
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fitting
hook
fitting female
shape
rope
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JP2022107325A (en
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敦 清原
勝也 黒川
勲生 二星
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Daihatsu Motor Co Ltd
Kanbishi Corp
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Daihatsu Motor Co Ltd
Kanbishi Corp
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Priority to PCT/JP2021/048210 priority patent/WO2022149494A1/en
Priority to TW111100218A priority patent/TWI784858B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P7/00—Securing or covering of load on vehicles
    • B60P7/06—Securing of load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/02—Platforms; Open load compartments
    • B62D33/023—Sideboard or tailgate structures

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

【課題】フック部の高い接合強度を実現できるロープフックを提供することを課題とする。【解決手段】ロープフックは、フック部とプレート部とを備えており、フック部はフック本体部と嵌合雄部とを有し、プレート部は嵌合雌部を有している。嵌合雌部は中央部とその外周に形成された延伸部を有し、嵌合雄部は嵌合雌部と嵌合し、嵌合雌部に固定される。また、嵌合雄部は、カシメのリベット部として機能し、嵌合雄部と嵌合雌部とがカシメ固定される。【選択図】図２PROBLEM TO BE SOLVED: To provide a rope hook capable of realizing a high joint strength of a hook portion. A rope hook includes a hook portion and a plate portion, the hook portion has a hook main body portion and a fitting male portion, and the plate portion has a fitting female portion. The fitting female portion has a central portion and an extension portion formed on the outer periphery thereof, and the fitting male portion is fitted with the fitting female portion and fixed to the fitting female portion. Further, the fitting male portion functions as a caulking rivet portion, and the fitting male portion and the fitting female portion are caulked and fixed. [Selection diagram] Fig. 2

Description

本発明は、ロープフックに関するものである。 The present invention relates to a rope hook.

車両の荷台に載置した積載物をロープにより固定するため、車両の荷台の側壁部には、ロープを係止するためのロープフックが設けられている。
例えば、ロープフックは、円柱状の金属棒を９０度湾曲させた鉤形状（Ｌ字形状）のフック部が略平面状の支持板に接合された構造を有する。フック部は支持板に溶接固定され、支持板は荷台の側壁部にネジ又は溶接により強固に固定される。
文献１は、荷台のトップレールに、棒状のフック部を鉛直方向に直接取付るロープフックを開示する。
文献２は、保持台にフック部が固定されたロープフックを開示し、保持台を荷台のリアゲート（側壁部）に取り付けるよう構成されている。 In order to fix the load placed on the loading platform of the vehicle with a rope, a rope hook for locking the rope is provided on the side wall portion of the loading platform of the vehicle.
For example, the rope hook has a structure in which a hook portion having a hook shape (L-shape) in which a columnar metal rod is curved by 90 degrees is joined to a substantially flat support plate. The hook portion is welded and fixed to the support plate, and the support plate is firmly fixed to the side wall portion of the loading platform by screws or welding.
Document 1 discloses a rope hook that directly attaches a rod-shaped hook portion to the top rail of a loading platform in the vertical direction.
Document 2 discloses a rope hook in which a hook portion is fixed to a holding base, and is configured to attach the holding base to a rear gate (side wall portion) of the loading platform.

実開平５−７２５６７号公報Jikkenhei 5-72567 Gazette 実開平４−８６５８７号公報Jikkenhei 4-86587 Gazette

ロープが引っ掛けられるフック部には、積載時のロープの締め付けだけでなく、運搬時の加減速や揺れによっても大きな張力（テンション）が加えられる。そのため、フック部には、上方に引き上げる張力のほか、荷台の側壁に沿ってフック部を回転する方向の張力も加えられる。これらの複雑な張力に抗して高い接合強度で固定し耐久性を確保するために、従来は小さくかつ湾曲したフック部と支持板との接合部を溶接する必要があった。しかし、フック部の溶接作業は難しく、熟練の作業者による高度な溶接技術が必要とされていた。 A large tension is applied to the hook portion on which the rope is hooked not only by tightening the rope during loading but also by acceleration / deceleration and shaking during transportation. Therefore, in addition to the tension for pulling up the hook portion, the tension in the direction of rotating the hook portion along the side wall of the loading platform is also applied to the hook portion. Conventionally, it has been necessary to weld a joint portion between a small and curved hook portion and a support plate in order to secure durability with high joint strength against these complicated tensions. However, the welding work of the hook part is difficult, and an advanced welding technique by a skilled worker is required.

本発明の課題は、耐久性のよいロープフックを容易に提供することである。 An object of the present invention is to easily provide a durable rope hook.

本発明にかかるロープフックの一態様は、
荷台の側壁に固定して取り付けられるロープフック（１）であって、
円柱状の中実の金属棒を湾曲させたＬ字形状のフック部（２）と、前記フック部（２）が接合されたプレート部（３）とを備え、
前記プレート部（３）は、前記プレート部（３）と前記フック部（２）との接合部（４）に深さＤの凹部が形成され、
前記接合部（４）において、円形の中心部（７ａ）から放射状に伸びる延伸部（７ｂ）を有する嵌合雌部（７）に、前記フック部（２）の一端である中実な嵌合雄部（６）が塑性変形することで一体化して固定され、
前記嵌合雌部（７）における両側に前記嵌合雄部（６）の塑性変形により形成されたフランジ状の第１の係止部（５）及び第２の係止部（８）を有し、
前記第１の係止部（５）は、前記プレート部（３）の凹部に収容され、
前記第１の係止部（５）及び前記第２の係止部（８）は前記プレート部（３）を峡持し、
前記延伸部（７ｂ）は、扇形の一部から構成され、前記延伸部（７ｂ）の外周側の長さは前記中心部（７ａ）で切り取られた内周側の長さより長く、前記嵌合雌部（７）が全体としてギア形状であることを特徴とする。
上記構成によれば、棒状（円柱状）のフック部を塑性変形する際に変形時の加圧で穴が膨張してもフックへの水平方向への荷重に耐えうる形状（ギア形状）であるためにロープにより回転等を含むテンションが加わっても十分に耐え得る強固な接合強度を従来よりも簡単な作業で容易に実現することができる。
One aspect of the rope hook according to the present invention is
A rope hook (1) that is fixedly attached to the side wall of the loading platform.
It is provided with an L-shaped hook portion (2) in which a cylindrical solid metal rod is curved, and a plate portion (3) to which the hook portion (2) is joined.
In the plate portion (3), a recess having a depth D is formed at a joint portion (4) between the plate portion (3) and the hook portion (2).
In the joint portion (4), a solid fitting that is one end of the hook portion (2) is fitted to a fitting female portion (7) having an extending portion (7b) extending radially from a circular central portion (7a). The male part (6) is integrally fixed by plastic deformation, and is fixed.
The fitting female portion (7) has a flange-shaped first locking portion (5) and a second locking portion (8) formed by plastic deformation of the fitting male portion (6) on both sides. death,
It said first locking portion (5) is received in the recess of the plate section (3),
The first locking portion (5) and the second locking portion (8) hold the plate portion (3) in the gorge.
The stretched portion (7b) is composed of a part of a fan shape, and the length of the outer peripheral side of the stretched portion (7b) is longer than the length of the inner peripheral side cut out by the central portion (7a), and the fitting The female portion (7) is characterized in that it has a gear shape as a whole.
According to the above configuration, when a rod-shaped (cylindrical) hook portion is plastically deformed, it has a shape (gear shape) that can withstand a horizontal load on the hook even if the hole expands due to pressure during deformation. Therefore, it is possible to easily realize a strong joint strength that can sufficiently withstand even if tension including rotation or the like is applied by the rope with a simpler operation than before.

また、本発明にかかるロープフックは、
前記凹部の深さＤが、前記第１の係止部（５）の肉厚ｔ以上であることを特徴とする。 Further, the rope hook according to the present invention is
The depth D of the recess is equal to or greater than the wall thickness t of the first locking portion (5) .

このように、前記凹部の深さＤが、第１の係止部５の肉厚ｔ以上であることで第１の係止部５が、プレート部３の表面Ｓから突出することを防止することができ、第１の係止部５が、プレート部３と荷台の側壁１０２との固定を阻害することが防止される。In this way, when the depth D of the recess is equal to or greater than the wall thickness t of the first locking portion 5, the first locking portion 5 is prevented from protruding from the surface S of the plate portion 3. It is possible to prevent the first locking portion 5 from hindering the fixing of the plate portion 3 and the side wall 102 of the loading platform.

本発明にかかるロープフックの別の態様は、
車両上に取り付け可能なロープフック（１）であって、
フック部（２）とプレート部（３）とを備え、
前記フック部（２）はＬ字形状の棒状のフック本体部（２ａ）と嵌合雄部（６）とを有し、
前記プレート部（３）は嵌合雌部（７）を有し、
前記嵌合雌部（７）の一方の側には延伸凹部（７２ａ）及び延伸凸部（７３ａ）が設けられていると共に前記嵌合雌部（７）の他方の側には延伸凹部（７２ｂ）及び延伸凸部（７３ｂ）が設けられ、
前記嵌合雄部（６）は、前記嵌合雌部（７）の形状に塑性変形することにより前記嵌合雌部（７）と嵌合して前記プレート部と前記フック部との接合部（４）における前記嵌合雌部（７）の円形の中心部（７ａ）及び前記円形の中心部（７ａ）から放射状に伸びる延伸部（７ｂ）を含む前記嵌合雌部と一体化して固定されることを特徴とする。
上記構成において、前記一方の側に設けられた延伸凹部（７２ａ）及び延伸凸部（７３ａ）と、前記他方の側に設けられた延伸凹部（７２ｂ）及び延伸凸部（７３ｂ）とが、それぞれ相対向する位置に設けられていてもよい。 Another aspect of the rope hook according to the present invention is
A rope hook (1) that can be mounted on a vehicle.
It has a hook part (2) and a plate part (3).
The hook portion (2) has an L-shaped rod-shaped hook main body portion (2a) and a fitting male portion (6).
The plate portion (3) has a fitting female portion (7) and has a fitting female portion (7).
A stretch recess (72a) and a stretch convex portion (73a) are provided on one side of the fitting female portion (7), and a stretch recess (72b) is provided on the other side of the fitting female portion (7). ) And a stretched convex portion (73b) are provided.
The fitting male portion (6) is fitted with the fitting female portion (7) by plastically deforming into the shape of the fitting female portion (7), and the joint portion between the plate portion and the hook portion. Integrally fixed with the fitting female portion including the circular center portion (7a) of the fitting female portion (7) and the extending portion (7b) extending radially from the circular center portion (7a ) in (4). It is characterized by being done.
In the above configuration, the stretched recess (72a) and the stretched convex portion (73a) provided on one side and the stretched concave portion (72b) and the stretched convex portion (73b) provided on the other side are respectively. It may be provided at opposite positions.

また、本発明にかかる上記いずれかの構成のロープフックは、前記嵌合雄部が前記嵌合雌部にカシメ固定されることを特徴とする。また、本発明にかかるロープフックは、前記嵌合雄部と前記嵌合雌部とが熱カシメにより固定されることを特徴とする。 Further, the rope hook having any of the above configurations according to the present invention is characterized in that the fitting male portion is caulked and fixed to the fitting female portion. Further, the rope hook according to the present invention is characterized in that the fitting male portion and the fitting female portion are fixed by heat caulking.

また、本発明にかかる上記いずれかの構成のロープフックは、前記嵌合雄部と前記嵌合雌部とがローリングカシメにより固定されることを特徴とする。 Further, the rope hook having any of the above configurations according to the present invention is characterized in that the fitting male portion and the fitting female portion are fixed by rolling caulking.

このように、嵌合雄部はカシメのリベット部として機能するものであり、フック部とプレート部との固定が容易であり、組立の作業負担が軽減する。 As described above, the fitting male portion functions as a caulking rivet portion, the hook portion and the plate portion can be easily fixed, and the work load of assembly is reduced.

本発明によれば、耐久性のよいロープフックを容易に提供することができる。 According to the present invention, it is possible to easily provide a rope hook having good durability.

図１（ａ）は、荷物Ｂを積載したトラック（車両）１００を示す斜視図、図１（ｂ）は、ロープフック１が取り付けられた荷台１０１の側壁１０２の拡大斜視図であり、図１（ｃ）は、側壁１０２に取り付けられたロープフック１の正面図である。FIG. 1A is a perspective view showing a truck (vehicle) 100 loaded with luggage B, and FIG. 1B is an enlarged perspective view of a side wall 102 of a loading platform 101 to which a rope hook 1 is attached. (C) is a front view of the rope hook 1 attached to the side wall 102. 図２（ａ）は、ロープフック１の構成部品を示す斜視図、図２（ｂ）、（ｃ）はフック部２及びプレート部３の部分拡大図である。FIG. 2A is a perspective view showing the components of the rope hook 1, and FIGS. 2B and 2C are partially enlarged views of the hook portion 2 and the plate portion 3. 図３は、組立後のロープフック１の外観を示す図であり、図３（ａ）は正面図、図３（ｂ）は背面図、図３（ｃ）は、図３（ａ）のＡ−Ａ線における断面図、図３（ｄ）は側面図、図３（ｅ）は、図３（ｄ）のＢ−Ｂ線断面図である。3A and 3B are views showing the appearance of the rope hook 1 after assembly, FIG. 3A is a front view, FIG. 3B is a rear view, and FIG. 3C is A in FIG. 3A. A cross-sectional view taken along the line A, FIG. 3 (d) is a side view, and FIG. 3 (e) is a cross-sectional view taken along the line BB of FIG. 3 (d). 図４は、種々のプレート部３の嵌合雌部７の形状を示す平面図である。FIG. 4 is a plan view showing the shapes of the fitting female portions 7 of the various plate portions 3. 図５は、図４（ｃ）に示される嵌合雌部７が、熱膨張により変形した形状を示す。FIG. 5 shows a shape in which the fitting female portion 7 shown in FIG. 4C is deformed by thermal expansion. 図６は、嵌合雌部７の変形例を示す平面図である。FIG. 6 is a plan view showing a modified example of the fitting female portion 7. 図７（ａ）、（ｂ）は、嵌合雌部７の他の変形例を示す斜視図であり、図７（ｃ）、（ｄ）は、その平面図及び側面図であり、図７（ｅ）は、嵌合雌部７のさらなる変形例を示す斜視図である。7 (a) and 7 (b) are perspective views showing other modified examples of the fitting female portion 7, and FIGS. 7 (c) and 7 (d) are plan views and side views thereof. (E) is a perspective view showing a further modified example of the fitting female portion 7.

以下、図面を参照して本発明の実施形態について説明する。但し、以下の実施形態は、いずれも本発明の要旨の認定において限定的な解釈を与えるものではない。また、同一又は同種の部材については同じ参照符号を付して、説明を省略することがある。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, none of the following embodiments give a limiting interpretation in finding the gist of the present invention. Further, the same or the same type of members may be designated by the same reference numerals and the description thereof may be omitted.

（実施形態１）
図１（ａ）は、荷物Ｂを積載したトラック（車両）１００を示す斜視図である。
荷物Ｂはトラック１００の荷台１０１上に、ロープフック１に掛け回されたロープＲにより固定される。図１（ａ）に示すように、ロープフック１は、荷台１０１の周縁部に設けられた側壁１０２に取付られている。図示されるように、ロープフック１は、左右の側壁１０２に限定されず、背面部の側壁１０２にも取付可能である。 (Embodiment 1)
FIG. 1A is a perspective view showing a truck (vehicle) 100 loaded with luggage B.
The luggage B is fixed on the loading platform 101 of the truck 100 by a rope R hung around the rope hook 1. As shown in FIG. 1A, the rope hook 1 is attached to a side wall 102 provided on the peripheral edge of the loading platform 101. As shown, the rope hook 1 is not limited to the left and right side walls 102, and can be attached to the side wall 102 on the back surface.

図１（ｂ）は、荷台１０１の側壁１０２の拡大斜視図であり、図１（ｃ）は、側壁１０２に取り付けられたロープフック１の正面図である。図示するように、ロープフック１は側壁１０２に固定され、取付られている。 FIG. 1B is an enlarged perspective view of the side wall 102 of the loading platform 101, and FIG. 1C is a front view of the rope hook 1 attached to the side wall 102. As shown, the rope hook 1 is fixed and attached to the side wall 102.

ロープフック１は、後述するように、鉤形状（Ｌ字形状）の棒状のフック本体部２ａを有するフック部２と、フック部２を保持するプレート部（保持部）３を備えている。フック部２は、接合部４においてプレート部３と接合される。 As will be described later, the rope hook 1 includes a hook portion 2 having a hook-shaped (L-shaped) rod-shaped hook main body portion 2a and a plate portion (holding portion) 3 for holding the hook portion 2. The hook portion 2 is joined to the plate portion 3 at the joint portion 4.

ロープフック１のプレート部３は、例えば複数の固定部Ｊにおいて、ネジ、カシメ（加締）又はスポット溶接等により側壁１０２に、強固に（不動に）固定することができる。なお、「カシメ」とは、工具等で外力を加えることで強固に結合させることをいう。
なお、ロープフック１にロープＲを掛ける際の妨げとならないよう、固定部Ｊは突出することなく平坦であることが好ましい。そのため、好適にはスポット溶接により、ロープフック１を側壁１０２に固定する。 The plate portion 3 of the rope hook 1 can be firmly (immobilly) fixed to the side wall 102 by screwing, caulking (crimping), spot welding, or the like at a plurality of fixing portions J, for example. In addition, "caulking" means to firmly bond by applying an external force with a tool or the like.
It is preferable that the fixing portion J is flat without protruding so as not to interfere with the hooking of the rope R on the rope hook 1. Therefore, the rope hook 1 is preferably fixed to the side wall 102 by spot welding.

フック本体部２ａの断面は、例えば円形であり、円柱状の棒を有限の角度、例えば直角に屈曲した形状を有する。 The cross section of the hook main body 2a is, for example, circular, and has a shape in which a columnar rod is bent at a finite angle, for example, a right angle.

トラック１００の荷台１０１に荷物Ｂを積載し、ロープＲを用いて固定する場合、フック部２のフック本体部２ａの任意の位置にロープＲが掛け回され得る。
ロープＲはフック本体部２ａの周囲に掛け回され、荷物Ｂの締め付け作業時には、フック本体部２ａの表面に接しながら摺るように移動するため、ロープＲへの負担の低減のため、フック本体部２ａは上記のように、一般的には断面が円形である。
ただし、フック本体部２ａの断面は円形に限定するものではなく、楕円や面取りを施した矩形であってもよい。また、フック本体部２ａは、例えば屈曲部近傍とその他の位置とで、形状を変化させてもよい。 When the cargo B is loaded on the loading platform 101 of the truck 100 and fixed by using the rope R, the rope R can be hung around at an arbitrary position of the hook main body 2a of the hook portion 2.
The rope R is hung around the hook main body 2a, and when the luggage B is tightened, the rope R moves so as to slide while being in contact with the surface of the hook main body 2a. As described above, 2a generally has a circular cross section.
However, the cross section of the hook main body 2a is not limited to a circle, and may be an ellipse or a chamfered rectangle. Further, the shape of the hook main body 2a may be changed, for example, in the vicinity of the bent portion and at other positions.

ロープＲによりフック部２に加えられる張力は、荷物Ｂの固定作業（ロープ掛け作業）中だけでなく、走行中においても、加速や減速、振動等によっても発生する。また、その張力は、フック部２を上方に引き上げる方向だけでなく、図１中の矢印Ｆに示すように、トラック１００の前後方向（前進後退方向）にも働く。
従って、フック部２のアーム部（腕部）であるフック本体部２ａに引っ掛けられたロープＲから力が加えられると、（図１（ｃ）に示すように）接合部４においてフック部２を回転する方向に力（回転力）Ｔが加えられる場合がある。この場合、フック部２は、接合部４において、プレート部３に対して回転する方向にテンションが加わることになる。 The tension applied to the hook portion 2 by the rope R is generated not only during the fixing work (rope hanging work) of the luggage B, but also during traveling, acceleration, deceleration, vibration, and the like. Further, the tension acts not only in the direction of pulling up the hook portion 2 upward, but also in the front-rear direction (forward / backward direction) of the track 100 as shown by the arrow F in FIG.
Therefore, when a force is applied from the rope R hooked on the hook main body portion 2a, which is the arm portion (arm portion) of the hook portion 2, the hook portion 2 is moved at the joint portion 4 (as shown in FIG. 1C). A force (rotational force) T may be applied in the direction of rotation. In this case, the hook portion 2 is tensioned in the direction of rotation with respect to the plate portion 3 at the joint portion 4.

プレート部３は、複数の固定部Ｊにおいて側壁１０２に固定されるため、回転力Ｔに対して高い抵抗力を容易に得ることができる。一方、フック部２は、フック本体２ａの根元の接合部４において、プレート部３に一箇所で固定されるため、回転力Ｔに対して高い抵抗力を実現することは容易ではない。 Since the plate portion 3 is fixed to the side wall 102 by the plurality of fixing portions J, a high resistance force to the rotational force T can be easily obtained. On the other hand, since the hook portion 2 is fixed to the plate portion 3 at one place at the joint portion 4 at the base of the hook main body 2a, it is not easy to realize a high resistance force against the rotational force T.

図２は、非限定的なロープフック１の例を示す。図２（ａ）は、ロープフック１の構成部品を示す斜視図である。なお、図２（ａ）は、各構成部品の分解図であり、図２（ｂ）、（ｃ）はフック部２及びプレート部３の部分拡大図である。
図３は、組立後のロープフック１の外観を示す図であり、図３（ａ）は正面図、図３（ｂ）は背面図、図３（ｃ）は、図３（ａ）のＡ−Ａ線における断面図、図３（ｄ）は側面図、図３（ｅ）は図３（ｄ）のＢ−Ｂ線断面図である。 FIG. 2 shows an example of a non-limiting rope hook 1. FIG. 2A is a perspective view showing the components of the rope hook 1. Note that FIG. 2A is an exploded view of each component, and FIGS. 2B and 2C are partially enlarged views of the hook portion 2 and the plate portion 3.
3A and 3B are views showing the appearance of the rope hook 1 after assembly, FIG. 3A is a front view, FIG. 3B is a rear view, and FIG. 3C is A in FIG. 3A. A cross-sectional view taken along the line A, FIG. 3 (d) is a side view, and FIG. 3 (e) is a cross-sectional view taken along the line BB of FIG. 3 (d).

ロープフック１は、例えば、鉄やステンレス等の金属（合金）製であり、フック部２及びプレート部３を構成部材として備える。
フック部２は、フック本体部２ａと、その端部に設けられた嵌合雄部（根部）６とを備える。 The rope hook 1 is made of, for example, a metal (alloy) such as iron or stainless steel, and includes a hook portion 2 and a plate portion 3 as constituent members.
The hook portion 2 includes a hook main body portion 2a and a fitting male portion (root portion) 6 provided at an end portion thereof.

嵌合雄部６は嵌合雌部７にカシメ固定可能であり、嵌合雄部６はカシメのリベット部として機能する。ロープフック１が組み立てられた状態では、嵌合雄部６はフック本体部２ａのプレート部３側に設けられ、プレート部３の接合部４を構成することになる。
嵌合雄部６がリベット部として機能するとは、嵌合雄部６が塑性変形し嵌合雌部７と嵌合されることを意味し、嵌合雄部６がリベットの構成要素であることを意味し、リベットの胴部（軸部）に相当する。 The fitting male portion 6 can be crimped and fixed to the fitting female portion 7, and the fitting male portion 6 functions as a caulking rivet portion. In the assembled state of the rope hook 1, the fitting male portion 6 is provided on the plate portion 3 side of the hook main body portion 2a, and constitutes the joint portion 4 of the plate portion 3.
The fact that the fitting male portion 6 functions as a rivet portion means that the fitting male portion 6 is plastically deformed and fitted with the fitting female portion 7, and the fitting male portion 6 is a component of the rivet. Means, and corresponds to the body (shaft) of the rivet.

図２に示すように、嵌合雌部７の断面形状は、ギア形状（歯車形状）をなす。嵌合雄部６は嵌合雌部７に嵌合するように構成されている。 As shown in FIG. 2, the cross-sectional shape of the fitting female portion 7 has a gear shape (gear shape). The fitting male portion 6 is configured to fit into the fitting female portion 7.

図２（ｂ）は、嵌合雄部６の形状の例を示す部分拡大図であり、プレート部３に面する側から見た平面図である。図２（ｃ）は、嵌合雌部７の形状の例を示す部分拡大図であり、図２（ｂ）の嵌合雄部６に対応する嵌合雌部７の形状を示す。
嵌合雌部７は中心部７ａ（中心貫通部）と中心部の外周に部分的に延伸して形成された延伸部７ｂ（延伸凹部）を有する。嵌合雄部６は嵌合雌部７と嵌合可能な形状である。
図２（ｂ）に示すように嵌合雄部６の断面形状は、嵌合雌部７の中心部７ａに挿通可能な形状であり、例えば円形状である。嵌合雄部６の断面形状を円形状とした場合、嵌合雄部６を備えたフック部２の製造を容易にすることができる。
なお、嵌合雌部７の延伸部７ｂは嵌合雌部の中心部７ａと共にプレート部３の本体に対しては相対的に凹むことになり、凹形状となり、プレート部３の凹部として形成される。 FIG. 2B is a partially enlarged view showing an example of the shape of the fitting male portion 6, and is a plan view seen from the side facing the plate portion 3. FIG. 2C is a partially enlarged view showing an example of the shape of the fitting female portion 7, and shows the shape of the fitting female portion 7 corresponding to the fitting male portion 6 of FIG. 2B.
The fitting female portion 7 has a central portion 7a (center penetrating portion) and a stretched portion 7b (stretched recess) formed by partially stretching the outer periphery of the central portion. The fitting male portion 6 has a shape capable of fitting with the fitting female portion 7.
As shown in FIG. 2B, the cross-sectional shape of the fitting male portion 6 is a shape that can be inserted into the central portion 7a of the fitting female portion 7, and is, for example, a circular shape. When the cross-sectional shape of the fitting male portion 6 is circular, it is possible to facilitate the manufacture of the hook portion 2 provided with the fitting male portion 6.
The extended portion 7b of the fitting female portion 7 is recessed relative to the main body of the plate portion 3 together with the central portion 7a of the fitting female portion , and has a concave shape, and is formed as a concave portion of the plate portion 3. NS.

このように、嵌合雌部７の形状（断面形状）は、中心部７ａ（例えば凸集合である円形状）から突出する延伸部７ｂを有する形状であり、非凸集合である。嵌合雄部６は、嵌合雌部７と嵌合可能な形状であり、好適には円形状に構成される。
ここで、「非凸集合」及び「凸集合」は、学術用語であり正確な定義の説明は割愛するが、「非凸集合」とは、例えばギア形状、星形や勾玉の様に、一部が突出又は凹んだ形状を一般的に表す数学用語である。これに対して、正方形、円は、ともに凸集合であり、後述するように、熱膨張により正方形は円形に近づくが、非凸集合のように凸部又は凹部を有する形状は、熱膨張により円形に近づく可能性は限りなく小さい。 As described above, the shape (cross-sectional shape) of the fitting female portion 7 is a shape having an elongated portion 7b protruding from the central portion 7a (for example, a circular shape which is a convex set), and is a non-convex set. The fitting male portion 6 has a shape that can be fitted with the fitting female portion 7, and is preferably formed in a circular shape.
Here, "non-convex set" and "convex set" are academic terms and the explanation of the exact definition is omitted, but "non-convex set" means, for example, a gear shape, a star shape, or a jade. It is a mathematical term that generally describes the shape of a protruding or concave part. On the other hand, both the square and the circle are convex sets, and as will be described later, the square approaches a circle due to thermal expansion, but the shape having a convex portion or a concave portion such as a non-convex set is circular due to thermal expansion. The possibility of approaching is extremely small.

図２（ｃ）に示す例においては、嵌合雌部７は円形の中心部７ａと、中心部７ａから外方に伸びるように、中心部７ａの外周に形成された複数の延伸部７ｂとを有する。放射状に伸びる延伸部７ｂは、例えば、扇形の一部により構成されており、延伸部７ｂの内周側より外周側の方が周辺長が長い。
一方、上述のように、嵌合雌部７と嵌合する嵌合雄部６は、嵌合雌部７の中心部７ａと同様に円形であり、嵌合雄部６の中心部７ａに挿通可能である。
すなわち、嵌合雄部６は嵌合雌部７の中心部７ａに挿通し、嵌合雄部６の外壁面が中心部７ａの内壁面と接するよう構成されている。 In the example shown in FIG. 2C, the fitting female portion 7 has a circular central portion 7a and a plurality of extending portions 7b formed on the outer periphery of the central portion 7a so as to extend outward from the central portion 7a. Has. The extending portion 7b extending radially is formed of, for example, a part of a fan shape, and the outer peripheral side of the extending portion 7b has a longer peripheral length than the inner peripheral side.
On the other hand, as described above, the fitting male portion 6 that fits with the fitting female portion 7 is circular like the central portion 7a of the fitting female portion 7, and is inserted into the central portion 7a of the fitting male portion 6. It is possible.
That is, the fitting male portion 6 is inserted through the central portion 7a of the fitting female portion 7, and the outer wall surface of the fitting male portion 6 is in contact with the inner wall surface of the central portion 7a.

なお、後述するように、延伸部７ｂの形状は扇形の一部に限定するものではなく矩形であってもよく、また、中央部７ａは円形に限定するものではない。 As will be described later, the shape of the stretched portion 7b is not limited to a part of a fan shape and may be rectangular, and the central portion 7a is not limited to a circular shape.

なお、嵌合雄部６の形状は、嵌合雌部７に挿通され嵌合可能であれば、嵌合雌部７の中心部７ａと同一形状（円形）に限定されるものではなく、例えば、中心部７ａの周りに延伸部７ｂを含む形状（嵌合雌部７と嵌合する形状）であってもよい。嵌合雄部６の形状を嵌合雌部７と嵌合する形状とした場合、カシメ工程の際に、嵌合雄部６の回転が制限されるため、プレート部３とフック部２との位置関係を確定することが容易となる。 The shape of the fitting male portion 6 is not limited to the same shape (circular shape) as the central portion 7a of the fitting female portion 7 as long as it is inserted through the fitting female portion 7 and can be fitted. , The shape may include the extending portion 7b around the central portion 7a (the shape of fitting with the fitting female portion 7). When the shape of the fitting male portion 6 is made to fit with the fitting female portion 7, the rotation of the fitting male portion 6 is restricted during the caulking process, so that the plate portion 3 and the hook portion 2 are connected to each other. It becomes easy to determine the positional relationship.

図２（ｃ）では、４つの延伸部７ｂを備えた構成を示すが、これに限定するものではない。１以上の延伸部７ｂ、例えば３つの延伸部７ｂを備えてもよい。嵌合雄部６を嵌合雌部７に均等の力で加締められるよう、好適には、４つの延伸部延伸部７ｂは等角度間隔に配置され得る。 FIG. 2C shows a configuration including four extending portions 7b, but the present invention is not limited to this. One or more stretched portions 7b, for example, three stretched portions 7b may be provided. Preferably, the four stretched portions 7b can be arranged at equal angular intervals so that the fitting male portion 6 is crimped to the fitting female portion 7 with an equal force.

なお、フック部２、プレート部３は既知の金属加工技術を用いて製造することができる。特徴的な形状を有するプレート部３についても、例えば金属製板をプレス加工し、嵌合雌部７を削り加工し開口することで製造できる。 The hook portion 2 and the plate portion 3 can be manufactured by using a known metal processing technique. The plate portion 3 having a characteristic shape can also be manufactured by, for example, pressing a metal plate and scraping and opening the fitting female portion 7.

フック部２の嵌合雄部６は、プレート部３の嵌合雌部７に挿入し、熱カシメにより固定される。この熱カシメの工程において、フック部２の嵌合雄部６の端部は、プレート部３の嵌合雌部７を介して電極により機械的に加圧される。さらに電極から電流を流されることにより電気抵抗によるジュール熱を発生させ加熱され、嵌合雄部６が嵌合雌部７の形状に合致するように塑性変形し、加締られることができる。２つの電極により嵌合雄部６を挟み込むようにして電流を流すことで、主に嵌合雄部６に集中して電流を流すことができ、主に嵌合雄部６からジュール熱を発生させることができる。 The fitting male portion 6 of the hook portion 2 is inserted into the fitting female portion 7 of the plate portion 3 and fixed by thermal caulking. In this heat caulking step, the end portion of the fitting male portion 6 of the hook portion 2 is mechanically pressurized by the electrode via the fitting female portion 7 of the plate portion 3. Further, when an electric current is passed from the electrode, Joule heat is generated by electric resistance and heated, and the fitting male portion 6 can be plastically deformed and crimped so as to match the shape of the fitting female portion 7. By passing an electric current so as to sandwich the mating male portion 6 between the two electrodes, the electric current can be mainly concentrated on the mating male portion 6 and Joule heat is mainly generated from the mating male portion 6. Can be made to.

すなわち、リベット部である嵌合雄部６は、加圧と加熱の効果により、嵌合雌部７の径方向外側へと広がるように塑性変形され（又、部分的には溶着の効果も得られ）、その結果、フック部２とプレート部３とが接合され、接合部４において互いに強固に固定される。 That is, the fitting male portion 6 which is a rivet portion is plastically deformed so as to spread outward in the radial direction of the fitting female portion 7 due to the effects of pressurization and heating (and a partial welding effect is also obtained. As a result, the hook portion 2 and the plate portion 3 are joined and firmly fixed to each other at the joint portion 4.

なお、フック部２をプレート部３に固定するために、嵌合雄部６を塑性変形するカシメ工程において、特に熱カシメを好適に使用できるが熱カシメに限定されず、ローリングカシメ等のカシメ技術を用いてもよい。 In the caulking step of plastically deforming the fitting male portion 6 in order to fix the hook portion 2 to the plate portion 3, thermal caulking can be particularly preferably used, but the caulking technique is not limited to thermal caulking. May be used.

例えば、図２（ｂ）に示す例においては、嵌合雄部６が円形であり、ローリングカシメの使用にも適している。この場合、嵌合雄部６を嵌合雌部７に挿通させ、その先端を回転するカシメ具により直接押圧し、外向きに塑性変形させてもよい。 For example, in the example shown in FIG. 2B, the fitting male portion 6 is circular, and is suitable for use with rolling caulking. In this case, the fitting male portion 6 may be inserted through the fitting female portion 7, and the tip thereof may be directly pressed by a rotating caulking tool to be plastically deformed outward.

図３（ａ）、（ｂ）に示すように、嵌合雄部６の両側において嵌合雄部６が塑性変形し、円板形状の第１の係止部（フランジ部）５及び第２の係止部（フランジ部）８が形成される。第１の係止部５及び第２の係止部８は、嵌合雌部７及び嵌合雄部６（接合部４）を覆うように形成される。
図３（ｃ）、（ｄ）に示すように、接合部４において、第１の係止部５及び第２の係止部８とによりプレート部３が挟み込まれるように固定される。 As shown in FIGS. 3A and 3B, the fitting male portion 6 is plastically deformed on both sides of the fitting male portion 6, and the disc-shaped first locking portion (flange portion) 5 and the second Locking portion (flange portion) 8 is formed. The first locking portion 5 and the second locking portion 8 are formed so as to cover the fitting female portion 7 and the fitting male portion 6 (joint portion 4).
As shown in FIGS. 3C and 3D, the plate portion 3 is fixed so as to be sandwiched between the first locking portion 5 and the second locking portion 8 at the joint portion 4.

なお、フック本体部２ａに予めフランジ部として第２の係止部８を設けてもよい。フック本体部２ａの固定位置を確定することができる。 A second locking portion 8 may be provided in advance as a flange portion on the hook main body portion 2a. The fixed position of the hook main body 2a can be determined.

なお、図３（ｃ）に示すように、プレート部３は第１の係止部５を収容することができる凹部９を有してもよい。凹部９の深さＤは、第１の係止部５の肉厚ｔ以上に設定される。そのため、第１の係止部５が、プレート部３の表面Ｓから突出するを防止することができ、第１の係止部５が、プレート部３と荷台の側壁１０２との固定を阻害することが防止される。 As shown in FIG. 3C, the plate portion 3 may have a recess 9 capable of accommodating the first locking portion 5. The depth D of the recess 9 is set to be equal to or greater than the wall thickness t of the first locking portion 5. Therefore, the first locking portion 5 can be prevented from protruding from the surface S of the plate portion 3, and the first locking portion 5 hinders the fixing of the plate portion 3 and the side wall 102 of the loading platform. Is prevented.

図３（ｅ）は、カシメにより塑性変形した嵌合雄部６の断面形状を示す。嵌合雌部７の内側壁面に沿って嵌合雄部６が塑性変形し、嵌合雄部６は、中心部６ａ（中心突出部）と延伸部６ｂ（延伸凸部）とを有する形状となる。すなわち、嵌合雄部６は嵌合雌部７の全体と一体化し、嵌合雄部６の断面形状は嵌合雌部７の断面形状と同一形状となる。 FIG. 3 (e) shows the cross-sectional shape of the fitting male portion 6 that has been plastically deformed by caulking. The fitting male portion 6 is plastically deformed along the inner wall surface of the fitting female portion 7, and the fitting male portion 6 has a shape having a central portion 6a (center protruding portion) and an extending portion 6b (stretching convex portion). Become. That is, the fitting male portion 6 is integrated with the entire fitting female portion 7, and the cross-sectional shape of the fitting male portion 6 is the same as the cross-sectional shape of the fitting female portion 7.

図４は、種々のプレート部３の嵌合雌部７の形状を示す平面図である。図４（ａ）は嵌合雌部７がギア形状、図４（ｂ）は嵌合雌部７が円形状、図４（ｃ）は嵌合雌部７が矩形状（正方形）の例を示す。図４（ａ）に示す例は、図２（ａ）、（ｃ）に示す例と同じである。 FIG. 4 is a plan view showing the shapes of the fitting female portions 7 of the various plate portions 3. FIG. 4A shows an example in which the fitting female portion 7 has a gear shape, FIG. 4B shows an example in which the fitting female portion 7 has a circular shape, and FIG. 4C shows an example in which the fitting female portion 7 has a rectangular shape (square). show. The example shown in FIG. 4 (a) is the same as the example shown in FIGS. 2 (a) and 2 (c).

図１（ｃ）に示すように、ロープＲからの張力Ｆにより、ロープフック１のフック部２の根元である接合部４（嵌合雄部６）には回転力Ｔが付加されることがある。
図４（ａ）に示す例においては、嵌合雌部７がギア形状であり、カシメにより塑性変形した嵌合雄部６は嵌合雌部７と互いに噛み合うように固定され、嵌合雄部６と嵌合雌部７とは幾何学的に相対的な回転が不可能な形状となる。
そのため、回転力Ｔが付加されても、嵌合雄部６の回転が効果的に阻害され、回転力Ｔに対する抵抗力が高い。
その結果、フック部２とプレート部３とをカシメにより強固に固定することができ、ロープＲの張力に対して十分な耐久力を得ることができる。 As shown in FIG. 1 (c), the tension F from the rope R may apply a rotational force T to the joint portion 4 (fitting male portion 6) which is the base of the hook portion 2 of the rope hook 1. be.
In the example shown in FIG. 4A, the fitting female portion 7 has a gear shape, and the fitting male portion 6 plastically deformed by caulking is fixed so as to mesh with the fitting female portion 7 and is fixed so as to mesh with each other. 6 and the fitting female portion 7 have a shape that cannot be rotated relative to each other geometrically.
Therefore, even if the rotational force T is applied, the rotation of the fitting male portion 6 is effectively hindered, and the resistance to the rotational force T is high.
As a result, the hook portion 2 and the plate portion 3 can be firmly fixed by caulking, and sufficient durability against the tension of the rope R can be obtained.

一方、図４（ｂ）に示す例においては、嵌合雌部７は通常のリベットと同様に円形であり、嵌合雄部６も嵌合雌部７に対応して円形であるため、嵌合雄部６と嵌合雌部７とは幾何学的には相対的に回転可能な形状である。そのため、回転力Ｔに対する抵抗力が低く、図４（ａ）と比較して耐久性が劣る。 On the other hand, in the example shown in FIG. 4B, the fitting female portion 7 is circular like a normal rivet, and the fitting male portion 6 is also circular corresponding to the fitting female portion 7, so that the fitting female portion 7 is fitted. The male portion 6 and the fitting female portion 7 are geometrically relatively rotatable shapes. Therefore, the resistance to the rotational force T is low, and the durability is inferior to that of FIG. 4A.

図４（ｃ）に示す例においては、嵌合雌部７は矩形であり、カシメにより嵌合雄部６が径外方向に塑性変形することで、嵌合雌部７に追随して矩形に塑性変形することが期待される。その結果、カシメ工程の後には、嵌合雄部６と嵌合雌部７とは幾何学的には相対的に回転不可能な形状となり、図４（ｂ）に示す例と比較して、回転力Ｔに対する抵抗力を高くすることができる。 In the example shown in FIG. 4C, the fitting female portion 7 is rectangular, and the fitting male portion 6 is plastically deformed in the out-of-diameter direction by caulking, so that the fitting female portion 7 follows the fitting female portion 7 and becomes rectangular. Expected to be plastically deformed. As a result, after the caulking step, the fitting male portion 6 and the fitting female portion 7 have a shape that is geometrically relatively non-rotatable, and as compared with the example shown in FIG. 4 (b), the fitting female portion 7 has a shape that is relatively non-rotatable. The resistance to the rotational force T can be increased.

図５は、図４（ｃ）示す嵌合雌部７が、熱膨張により変形した形状を示す。
図５に示すように、カシメ工程で温度が上昇した場合、熱膨張により嵌合雌部７の形状が円形に近づく。その結果、フック部２をプレート部３に接合した状態では、接合部４の嵌合雄部６及び嵌合雌部７の形状（断面形状）は、円形に近い形状となり、熱膨張の影響は回転力Ｔに対する抵抗力を低減させる。従って、図４（ｃ）の形状から期待される回転力Ｔに対する抵抗力が十分に得られなくなる。
また、嵌合雄部６の形状を矩形にした場合も、カシメ工程における熱膨張により接合部４の嵌合雄部６及び嵌合雌部７の形状（断面形状）は、円形に近い形状となる。 FIG. 5 shows a shape in which the fitting female portion 7 shown in FIG. 4C is deformed by thermal expansion.
As shown in FIG. 5, when the temperature rises in the caulking process, the shape of the fitting female portion 7 approaches a circle due to thermal expansion. As a result, in the state where the hook portion 2 is joined to the plate portion 3, the shapes (cross-sectional shape) of the fitting male portion 6 and the fitting female portion 7 of the joint portion 4 become a shape close to a circle, and the influence of thermal expansion is affected. The resistance to the rotational force T is reduced. Therefore, the resistance force against the rotational force T expected from the shape of FIG. 4C cannot be sufficiently obtained.
Further, even when the shape of the fitting male portion 6 is rectangular, the shapes (cross-sectional shape) of the fitting male portion 6 and the fitting female portion 7 of the joint portion 4 are close to a circle due to thermal expansion in the caulking process. Become.

このように正方形のような正多角形が熱膨張すると、円形に近づく。しかし、円や正多角形の一部が突出、又は窪んだ形状（非凸集合）の場合、熱膨張しても円形に近づくことはない。
図４（ａ）に示す例においては、カシメ工程、特に熱カシメ工程における嵌合雌部７の熱膨張によっても、円形とならずギア形状を維持できるため、回転力Ｔに対して最も高い抵抗力を得ることができる。水平方向Ｆに対して要求強度を十分に満足することが確認された。
一方、図４（ｃ）に示す例は、図４（ｂ）に示す例と比較して回転力Ｔに対する抵抗は強化される。しかし、上記のようにカシメ工程において変形する場合があり、図４（ａ）に示す例と比較すると回転力Ｔに対する抵抗は劣る。 When a regular polygon such as a square thermally expands in this way, it approaches a circle. However, in the case where a part of a circle or a regular polygon is protruding or recessed (non-convex set), it does not approach a circle even if it is thermally expanded.
In the example shown in FIG. 4A, the gear shape can be maintained without being circular even by the thermal expansion of the fitting female portion 7 in the caulking process, particularly in the thermal caulking process, so that the resistance to the rotational force T is the highest. You can gain power. It was confirmed that the required strength was sufficiently satisfied with respect to the horizontal direction F.
On the other hand, in the example shown in FIG. 4 (c), the resistance to the rotational force T is enhanced as compared with the example shown in FIG. 4 (b). However, as described above, it may be deformed in the caulking process, and its resistance to the rotational force T is inferior to that of the example shown in FIG. 4 (a).

一般にカシメ固定は、溶接と比較して回転力に対しする抵抗力に乏しい。そのため、回転力が加えられるロープフック１のフック部２とプレート部３との固定には不向きであった。しかし、本発明のように嵌合雌部７と嵌合雄部６とを構成することにより、フック部２とプレート部３との固定にカシメ固定を採用できるようになり、さらに十分高い固定強度を実現できる。そのためロープフック１の製造工程において、フック部２とプレート部３とをカシメ固定可能とすることで、作業者の負担が軽減され、作業効率も向上する。 Generally, caulking fixing has less resistance to rotational force than welding. Therefore, it is not suitable for fixing the hook portion 2 and the plate portion 3 of the rope hook 1 to which the rotational force is applied. However, by configuring the fitting female portion 7 and the fitting male portion 6 as in the present invention, it becomes possible to adopt caulking fixing for fixing the hook portion 2 and the plate portion 3, and the fixing strength is further sufficiently high. Can be realized. Therefore, in the manufacturing process of the rope hook 1, the hook portion 2 and the plate portion 3 can be caulked and fixed, so that the burden on the operator is reduced and the work efficiency is improved.

（実施形態２）
嵌合雌部７の中心部７ａと延伸部７ｂの形状は、図２（ｃ）に示す例に限定するものではない。
図６は、嵌合雌部７の形状の変形例を示す平面図である。
図６（ａ）の平面図は、円形の中心部７ａの外周に設けられた延伸部７ｂの数が３、４、５であり、延伸部７ｂの形状が扇形の一部からなる形状（単に『扇形状』と称す。）又は矩形の一部からなる形状（単に『矩形状』と称す。）の例を示す。
このように、延伸部７ｂの形状が扇形状に限定するものではなく、例えば、矩形状であってもよい。換言すれば、図６中の点線で示すように、嵌合雌部７の外周形状が円に接してもよく、矩形（正多角形）に接してもよい。また、延伸部７ｂの数は４に限定するものではない。
また、複数の延伸部７ｂを、扇形状の延伸部７ｂと、矩形状の延伸部７ｂとの組み合わせから構成されてもよい。 (Embodiment 2)
The shapes of the central portion 7a and the extending portion 7b of the fitting female portion 7 are not limited to the example shown in FIG. 2 (c).
FIG. 6 is a plan view showing a modified example of the shape of the fitting female portion 7.
In the plan view of FIG. 6A, the number of stretched portions 7b provided on the outer periphery of the circular central portion 7a is 3, 4, 5, and the shape of the stretched portion 7b is a shape formed by a part of a fan shape (simply). An example of a shape (referred to as a "fan shape") or a shape consisting of a part of a rectangle (simply referred to as a "rectangular shape") is shown.
As described above, the shape of the stretched portion 7b is not limited to the fan shape, and may be, for example, a rectangular shape. In other words, as shown by the dotted line in FIG. 6, the outer peripheral shape of the fitting female portion 7 may be in contact with a circle or a rectangle (regular polygon). Further, the number of stretched portions 7b is not limited to 4.
Further, the plurality of stretched portions 7b may be composed of a combination of a fan-shaped stretched portion 7b and a rectangular stretched portion 7b.

なお、対応する嵌合雄部６の形状は、嵌合雌部７の中心部７ａと同一形状又は円形状としてもよい。カシメ工程において嵌合雄部６が塑性変形し、嵌合雌部７の中心部７ａ及び延伸部７ｂと嵌合することになる。 The shape of the corresponding male fitting portion 6 may be the same as the shape of the central portion 7a of the fitting female portion 7 or a circular shape. In the caulking step, the fitting male portion 6 is plastically deformed and is fitted with the central portion 7a and the extending portion 7b of the fitting female portion 7.

なお、嵌合雄部６の形状を、中心部７ａの外周に延伸部７ｂを有する嵌合雌部７と同一形状としてもよい。例えば、嵌合雄部６の延伸部６ｂは、扇形状又は矩形状であってもよく。また、嵌合雌部７の延伸部７ｂを扇形状とし、対応する嵌合雄部６の延伸部６ｂを扇形状又は矩形状としてもよい。ただし、嵌合雄部６を上記のように円形状とすることで、嵌合雄部６の製造コストを低減できる。 The shape of the fitting male portion 6 may be the same as that of the fitting female portion 7 having the extending portion 7b on the outer periphery of the central portion 7a. For example, the extending portion 6b of the fitting male portion 6 may have a fan shape or a rectangular shape. Further, the stretched portion 7b of the fitting female portion 7 may be fan-shaped, and the stretched portion 6b of the corresponding fitting male portion 6 may be fan-shaped or rectangular. However, by forming the mating male portion 6 into a circular shape as described above, the manufacturing cost of the mating male portion 6 can be reduced.

また、中心部７ａの形状は円形に限定するものではない。図６（ｂ）の平面図は、中心部７ａの形状が円ではなく、矩形（好適には正多角形）であり、延伸部７ｂの形状が扇形の一部又は矩形の例を示す。すなわち、中心部７ａの外周が矩形に接する形状であってもよい。 Further, the shape of the central portion 7a is not limited to a circular shape. The plan view of FIG. 6B shows an example in which the shape of the central portion 7a is not a circle but a rectangle (preferably a regular polygon), and the shape of the extension portion 7b is a part of a fan shape or a rectangle. That is, the outer circumference of the central portion 7a may be in contact with the rectangle.

さらに図７に示すように、プレート部３の嵌合雌部７の形状を凹凸を有する形状としてもよい。
図７（ａ）は、フック本体部３ａ側から見たプレート部３の部分斜視図、図７（ｂ）は、第１の係止部５側（又は荷台１０１の側壁１０２側）から見たプレート部３の部分斜視図であり、図７（ｃ）は嵌合雌部７近傍の平面図であり、図７（ｄ）は嵌合雌部７近傍の側面図であり、図７（ｅ）はさらに変形されたプレート部３の拡大斜視図である。
図７に示すように、嵌合雌部７の中央部には中心貫通部７１が設けられており、中心貫通部７１の外周方向に伸びる箇所には、図７（ａ）に示すように、プレート部３の嵌合雌部７の一方の側には、上記延伸部７ｂに相当する４つの延伸凹部７２ａ及び延伸凸部７３ａが設けられている。また、図７（ｂ）に示すように、嵌合雌部７の他方の側には、上記延伸部７ｂに相当する４つの延伸凹部７２ｂ及び延伸凸部７３ｂが設けられている。
延伸凹部７２ａ、７２ｂはプレート部３の表面より凹み、延伸凸部７３ａ、７３ｂはプレート部３の表面より突出している。延伸凹部７２ａ、７２ｂ及び延伸凸部７３ａ、７３ｂは、例えばプレス加工により設けることができる。 Further, as shown in FIG. 7, the shape of the fitting female portion 7 of the plate portion 3 may be a shape having irregularities.
FIG. 7A is a partial perspective view of the plate portion 3 viewed from the hook main body portion 3a side, and FIG. 7B is viewed from the first locking portion 5 side (or the side wall 102 side of the loading platform 101). FIG. 7C is a partial perspective view of the plate portion 3, FIG. 7C is a plan view of the vicinity of the fitting female portion 7, FIG. 7D is a side view of the vicinity of the fitting female portion 7, and FIG. 7 (e). ) Is an enlarged perspective view of the further deformed plate portion 3.
As shown in FIG. 7, a central penetrating portion 71 is provided in the central portion of the fitting female portion 7, and as shown in FIG. 7A, a portion extending in the outer peripheral direction of the central penetrating portion 71 is provided. On one side of the fitting female portion 7 of the plate portion 3, four stretching recesses 72a and stretching protrusions 73a corresponding to the stretching portion 7b are provided. Further, as shown in FIG. 7B, four stretching recesses 72b and stretching protrusions 73b corresponding to the stretching portion 7b are provided on the other side of the fitting female portion 7.
The stretched recesses 72a and 72b are recessed from the surface of the plate portion 3, and the stretched convex portions 73a and 73b are projected from the surface of the plate portion 3. The stretched recesses 72a and 72b and the stretched protrusions 73a and 73b can be provided by, for example, press working.

対応する嵌合雄部６の断面形状は中心貫通部７１と同形に設定することができる。例えば、中心貫通部７１が円形の場合、嵌合雄部６は、断面が円形の円柱状である。
カシメ工程において、嵌合雄部６は、プレート部３の嵌合雌部７の中心貫通部７１に挿通され、その後嵌合雄部６は、加圧され塑性変形し、延伸凹部７２ａ、７２ｂ、及び延伸凸部７３ａ、７３ｂに挟まれた空間に拡張し、フック本体部３ａがプレート部３と嵌合し、接合される。 The cross-sectional shape of the corresponding fitting male portion 6 can be set to be the same as that of the central penetrating portion 71. For example, when the central penetrating portion 71 is circular, the fitting male portion 6 is a columnar shape having a circular cross section.
In the caulking step, the fitting male portion 6 is inserted into the central penetrating portion 71 of the fitting female portion 7 of the plate portion 3, and then the fitting male portion 6 is pressurized and plastically deformed, and the drawn recesses 72a and 72b, The hook main body portion 3a is fitted to the plate portion 3 and joined to the space sandwiched between the stretched convex portions 73a and 73b.

なお、延伸凹部７２ａ、７２ｂ及び延伸凸部７３ａ、７３ｂの数は、４に限定するものではなく例えば２、３等であってもよい。延伸凹部７２ａ、７２ｂ及び延伸凸部７３ａ、７３ｂの形状は、扇形状あってもよく、矩形であってもよい。 The number of the stretched recesses 72a and 72b and the stretched protrusions 73a and 73b is not limited to 4, and may be, for example, 2, 3 or the like. The shapes of the stretched recesses 72a and 72b and the stretched protrusions 73a and 73b may be fan-shaped or rectangular.

また、図７（ｅ）は嵌合雌部７の、更なる変形例を示す。図７（ｅ）に示すようにプレート部３の嵌合雌部７の一方の側に延伸凹部７２ｃのみを設け他方の側に延伸凹部７２ｃのみを設けてもよい。 Further, FIG. 7E shows a further modification example of the fitting female portion 7. As shown in FIG. 7 (e), only the extension recess 72c may be provided on one side of the fitting female portion 7 of the plate portion 3, and only the extension recess 72c may be provided on the other side.

本発明に係るロープフックは、従来よりも簡単な作業でフック部とプレート部と強固に接合固定することができる。荷台に限定されることなく、ロープを引っかけるフックが必要なあらゆる構造に適用でき、よって、産業上の利用可能性は大きい。 The rope hook according to the present invention can be firmly joined and fixed to the hook portion and the plate portion with a simpler operation than before. It can be applied to any structure that requires a hook to hook the rope, without being limited to the loading platform, and therefore has great industrial applicability.

１ ロープフック
２ フック部
２ａ フック本体部
３ プレート部（保持部）
４ 接合部
５ 第１の係止部（第１のフランジ部）
６ 嵌合雄部（根部）
６ａ 中心部（中心突出部）
６ｂ 延伸部（延伸突出部）
７ 嵌合雌部（開口部）
７ａ 中心部（中心貫通部）
７ｂ 延伸部（延伸凹部）
８ 第２の係止部（第２のフランジ部）
９ 凹部
７１ 中心貫通部
７２ 延伸凹部
７３ 延伸凸部
１００ トラック（車両）
１０１ 荷台
１０２ 側壁
Ｂ 荷物
Ｊ 固定部
Ｒ ロープ 1 Rope hook 2 Hook part 2a Hook body part 3 Plate part (holding part)
4 Joint part 5 First locking part (first flange part)
6 Fitting male part (root part)
6a Central part (center protruding part)
6b Stretched part (stretched protruding part)
7 Fitting female part (opening)
7a Central part (center penetration part)
7b Stretched part (stretched recess)
8 Second locking part (second flange part)
9 Recess 71 Central penetration 72 Stretch recess 73 Stretch convex 100 Truck (vehicle)
101 Loading platform 102 Side wall B Luggage J Fixing part R Rope

Claims (8)

荷台の側壁に固定して取り付けられるロープフック（１）であって、
円柱状の中実の金属棒を湾曲させたＬ字形状のフック部（２）と、前記フック部（２）が接合されたプレート部（３）とを備え、
前記プレート部（３）は、前記プレート部（３）と前記フック部（２）との接合部（４）に深さＤの凹部が形成され、
前記接合部（４）において、円形の中心部（７ａ）から放射状に伸びる延伸部（７ｂ）を有する嵌合雌部（７）に、前記フック部（２）の一端である中実な嵌合雄部（６）が塑性変形することで一体化して固定され、
前記嵌合雌部（７）における両側に前記嵌合雄部（６）の塑性変形により形成されたフランジ状の第１の係止部（５）及び第２の係止部（８）を有し、
前記第１の係止部（５）は、前記プレート部（３）の凹部に収容され、
前記第１の係止部（５）及び前記第２の係止部（８）は前記プレート部（３）を峡持し、
前記延伸部（７ｂ）は、扇形の一部から構成され、前記延伸部（７ｂ）の外周側の長さは前記中心部（７ａ）で切り取られた内周側の長さより長く、前記嵌合雌部（７）が全体としてギア形状であることを特徴とする、ロープフック（１）。 A rope hook (1) that is fixedly attached to the side wall of the loading platform.
It is provided with an L-shaped hook portion (2) in which a cylindrical solid metal rod is curved, and a plate portion (3) to which the hook portion (2) is joined.
In the plate portion (3), a recess having a depth D is formed at a joint portion (4) between the plate portion (3) and the hook portion (2).
In the joint portion (4), a solid fitting that is one end of the hook portion (2) is fitted to a fitting female portion (7) having an extending portion (7b) extending radially from a circular central portion (7a). The male part (6) is integrally fixed by plastic deformation, and is fixed.
The fitting female portion (7) has a flange-shaped first locking portion (5) and a second locking portion (8) formed by plastic deformation of the fitting male portion (6) on both sides. death,
It said first locking portion (5) is received in the recess of the plate section (3),
The first locking portion (5) and the second locking portion (8) hold the plate portion (3) in the gorge.
The stretched portion (7b) is composed of a part of a fan shape, and the length of the outer peripheral side of the stretched portion (7b) is longer than the length of the inner peripheral side cut out by the central portion (7a), and the fitting A rope hook (1) characterized in that the female portion (7) has a gear shape as a whole. 前記凹部の深さＤが、前記第１の係止部（５）の肉厚ｔ以上であることを特徴とする請求項１記載のロープフック（１）。 The rope hook (1) according to claim 1, wherein the depth D of the recess is equal to or larger than the wall thickness t of the first locking portion (5). 車両上に取り付け可能なロープフック（１）であって、
フック部（２）とプレート部（３）とを備え、
前記フック部（２）はＬ字形状の棒状のフック本体部（２ａ）と嵌合雄部（６）とを有し、
前記プレート部（３）は嵌合雌部（７）を有し、
前記嵌合雌部（７）の一方の側には延伸凹部（７２ａ）及び延伸凸部（７３ａ）が設けられていると共に前記嵌合雌部（７）の他方の側には延伸凹部（７２ｂ）及び延伸凸部（７３ｂ）が設けられ、
前記嵌合雄部（６）は、前記嵌合雌部（７）の形状に塑性変形することにより前記嵌合雌部（７）と嵌合して前記プレート部と前記フック部との接合部（４）における前記嵌合雌部（７）の円形の中心部（７ａ）及び前記円形の中心部（７ａ）から放射状に伸びる延伸部（７ｂ）を含む前記嵌合雌部と一体化して固定されることを特徴とするロープフック（１）。 A rope hook (1) that can be mounted on a vehicle.
It has a hook part (2) and a plate part (3).
The hook portion (2) has an L-shaped rod-shaped hook main body portion (2a) and a fitting male portion (6).
The plate portion (3) has a fitting female portion (7) and has a fitting female portion (7).
A stretch recess (72a) and a stretch convex portion (73a) are provided on one side of the fitting female portion (7), and a stretch recess (72b) is provided on the other side of the fitting female portion (7). ) And a stretched convex portion (73b) are provided.
The fitting male portion (6) is fitted with the fitting female portion (7) by plastically deforming into the shape of the fitting female portion (7), and the joint portion between the plate portion and the hook portion. Integrally fixed with the fitting female portion including the circular center portion (7a) of the fitting female portion (7) and the extending portion (7b) extending radially from the circular center portion (7a ) in (4). A rope hook (1) characterized by being made. 前記一方の側に設けられた延伸凹部（７２ａ）及び延伸凸部（７３ａ）と、前記他方の側に設けられた延伸凹部（７２ｂ）及び延伸凸部（７３ｂ）とが、それぞれ相対向する位置に設けられていることを特徴とする請求項３記載のロープフック（１）。 Positions where the stretched concave portion (72a) and the stretched convex portion (73a) provided on one side and the stretched concave portion (72b) and the stretched convex portion (73b) provided on the other side face each other. The rope hook (1) according to claim 3, wherein the rope hook (1) is provided. 前記嵌合雄部（６）は、前記嵌合雌部（７）と同一形状であることを特徴とする請求項１又は請求項２記載のロープフック。 The rope hook according to claim 1 or 2, wherein the fitting male portion (6) has the same shape as the fitting female portion (7). 前記嵌合雄部（６）が前記嵌合雌部（７）にカシメ固定されることを特徴とする請求項１乃至３のいずれか１項又は２記載のロープフック。 The rope hook according to any one or two of claims 1 to 3, wherein the fitting male portion (6) is caulked and fixed to the fitting female portion (7). 前記嵌合雄部（６）と前記嵌合雌部（７）とが熱カシメにより固定されることを特徴とする請求項６記載のロープフック。 The rope hook according to claim 6, wherein the fitting male portion (6) and the fitting female portion (7) are fixed by heat caulking. 前記嵌合雄部（６）と前記嵌合雌部（７）とがローリングカシメにより固定されることを特徴とする請求項６記載のロープフック。 The rope hook according to claim 6, wherein the fitting male portion (6) and the fitting female portion (7) are fixed by rolling caulking.
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JP2021002199A JP6965467B1 (en) 2021-01-08 2021-01-08 Rope hook
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TW111100218A TWI784858B (en) 2021-01-08 2022-01-04 Rope hook

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Citations (5)

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JPS6152530U (en) * 1984-09-12 1986-04-09
JPS61196317U (en) * 1985-05-29 1986-12-08
JP2004183742A (en) * 2002-12-02 2004-07-02 Gates Unitta Asia Co Pulley with flange
JP2008223782A (en) * 2007-03-08 2008-09-25 Mitsubishi Heavy Ind Ltd Outdoor unit of air conditioner
JP2018079481A (en) * 2016-11-14 2018-05-24 大豊工業株式会社 Caulking structure and caulking method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI707790B (en) * 2019-12-10 2020-10-21 黃漢卿 Concealable buckle apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152530U (en) * 1984-09-12 1986-04-09
JPS61196317U (en) * 1985-05-29 1986-12-08
JP2004183742A (en) * 2002-12-02 2004-07-02 Gates Unitta Asia Co Pulley with flange
JP2008223782A (en) * 2007-03-08 2008-09-25 Mitsubishi Heavy Ind Ltd Outdoor unit of air conditioner
JP2018079481A (en) * 2016-11-14 2018-05-24 大豊工業株式会社 Caulking structure and caulking method

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WO2022149494A1 (en) 2022-07-14

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