JP2006292048A

JP2006292048A - Article fastening device

Info

Publication number: JP2006292048A
Application number: JP2005112332A
Authority: JP
Inventors: Kunihiko Matsuzaki; 邦彦松崎
Original assignee: MATETSUKU MATSUZAKI KK
Current assignee: MATETSUKU MATSUZAKI KK
Priority date: 2005-04-08
Filing date: 2005-04-08
Publication date: 2006-10-26

Abstract

<P>PROBLEM TO BE SOLVED: To provide an article fastening device increased in the number of screw threads at a locking nut side and improved in its appearance. <P>SOLUTION: In this fastening device for fastening an article placed between a head portion of a bolt 5 and a fastening nut 6 by successively screwing the fastening nut 6 and the locking nut 7 to a tip of the bolt 5, a projecting portion 7b formed on a central portion of the locking nut 7 is engaged with a recessed portion 9 formed on a central portion of the fastening nut 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、ボルトの先端に締付けナットと緩み止めナットを順次螺合して前記ボルトの頭部と前記締付けナットの間に介在させた物品を締め付けるようにした物品の締付け装置に関するものである。 The present invention relates to an article tightening apparatus in which a tightening nut and a locking nut are sequentially screwed onto a tip of a bolt to tighten an article interposed between the bolt head and the tightening nut.

具体例を挙げるまでもなく、ボルトに締付けナットを螺合して該締付けナットとボルトの頭部とで物品を締め付けるようにし、締付けナットの外側にボルトに螺合した緩み止めナットを隣接させて締付けナット乃至ボルトの緩みを防ぐようにした構成の物品の締付け装置がある。 Needless to mention a specific example, a tightening nut is screwed onto the bolt and the article is tightened with the tightening nut and the head of the bolt. There is a tightening device for articles configured to prevent loosening of a tightening nut or bolt.

緩み止めナットでより強い緩み止め効果を発揮させるために、できるだけ多くねじ山（ナットの）を確保することが望ましいが、従来例は締付けナットに対し単に緩み止めナットを単に並べて配置するだけであるので、ねじ山を多く得るには該ナットを長く（厚く）することになり、必然的にボルト側も長くなり、物品からの突出量が嵩み、外観的見栄えも低下することになる。 It is desirable to secure as many threads (of the nut) as possible in order to exert a stronger locking effect with the locking nut, but in the conventional example, the locking nut is simply arranged side by side with the clamping nut. Therefore, in order to obtain a large amount of thread, the nut is lengthened (thickened), the bolt side is inevitably lengthened, the amount of protrusion from the article is increased, and the appearance is also reduced.

本発明は、斯様な従来例の欠点に着目し、突出量が嵩むことによる外観的見栄えが低下することなく、緩み止め効果を増大させた、物品の締付け装置を提供すべく創案したものである。 The present invention has been devised to provide an article fastening device that increases the effect of preventing loosening without deteriorating the appearance of the appearance due to the increase in the amount of protrusion, focusing on the drawbacks of such conventional examples. is there.

ボルトの先端に締付けナットと緩み止めナットを順次螺合して前記ボルトの頭部と前記締付けナットとの間に介在させた物品を締め付けるようにした締付け装置において、前記締付けナットの中央部に設けた凹陥部に、前記緩み止めナットの中央部に設けた突出部を係合した構成とするのである。 A tightening device in which a tightening nut and a locking nut are sequentially screwed onto the tip of a bolt to tighten an article interposed between the head of the bolt and the tightening nut, and is provided at the center of the tightening nut. The projecting portion provided at the central portion of the locking nut is engaged with the recessed portion.

本発明によれば、一定の長さ内で、緩み止めナット側のねじ山を多くでき、従って、緩み止めナット乃至ボルトによる緩み止め効果の優れた、物品の締付け装置を提供できる。 According to the present invention, it is possible to increase the thread on the side of the locking nut within a certain length, and therefore, it is possible to provide an article fastening device that has an excellent locking effect by the locking nut or bolt.

図面は本発明に係る物品の締付け装置を、一対の鋏体の枢着装置に適用した断面図を示し、図中、１，２は鋏Ａを構成する一方の鋏体と他方の鋏体で、鋏体（請求項でいう物品）１，２は、刃側部１ａ，２ａと柄側部１ｂ，２ｂとの間の中間部に設けた接続孔３，４において締付けボルト５と、これに螺合した締付けナット６および緩み止めナット７によって互いに回動自在に枢着して、前記の通り、鋏Ａを構成する。 The drawings show a cross-sectional view in which the apparatus for tightening articles according to the present invention is applied to a pivot attachment device for a pair of housings, wherein 1 and 2 are one housing and the other housing constituting the housing A. The housings (articles) 1 and 2 are connected to the fastening bolts 5 in the connection holes 3 and 4 provided in the intermediate part between the blade side parts 1a and 2a and the handle side parts 1b and 2b. As described above, the hook A is configured to be pivotally attached to each other by the screwed tightening nut 6 and the locking nut 7.

前記接続孔３，４は、鋏体１，２同士の対向面側を小径部３ａ，４ａ、非対向面側を大径部３ｂ，４ｂとし、しかも、小径部３ａ，４ａに隣接する大径部３ｂ，４ｂの底縁３ｂ´，４ｂ´をテーパ状とした、全体としてやや断面漏斗形を成し、一方の鋏体１側の接続孔３の小径部３ａを断面方形状の角孔で構成した点を除き、各部４ａ、３ｂ，４ｂを断面円形状にしたもので、一方の鋏体１側の接続孔３の小径部３ａに、他方の鋏体２側の接続孔４を通じて前記締付けナット６の方形状の角筒部６ｂを嵌合してある。 The connection holes 3 and 4 have the small-diameter portions 3a and 4a on the facing surfaces of the casings 1 and 2 and the large-diameter portions 3b and 4b on the non-facing surfaces, respectively. The bottom edges 3b 'and 4b' of the portions 3b and 4b are tapered to form a slightly cross-sectional funnel shape as a whole, and the small-diameter portion 3a of the connection hole 3 on the side of one housing 1 is a square hole with a square cross-section. Each part 4a, 3b, 4b has a circular cross-section except for the configuration points, and is tightened through the connection hole 4 on the other housing 2 side to the small diameter portion 3a of the connection hole 3 on one housing 1 side. A square-shaped square tube portion 6b of the nut 6 is fitted.

締付けナット６は、表面（上面）中央部に断面円形の凹陥部９を備えた頭部６ａ（の下面）に前記角筒部６ｂを一体に連設して構成したもので、頭部６ａを前記接続孔４の大径部４ｂに嵌合し、かつ、すべり兼調節リング８を介して大径部底縁４ｂ´に係止させるようにして角筒部６ｂを接続孔４を通じて該接続孔４の小径部４ａより突出させ、一方の鋏体１の接続孔３の小径部３ａに嵌合して両鋏体１，２に組付けてある。 The tightening nut 6 is configured by integrally connecting the square tube portion 6b to a head portion 6a (the lower surface thereof) having a concave portion 9 having a circular cross section at the center portion of the surface (upper surface). The rectangular tube portion 6b is connected to the large-diameter portion 4b of the connection hole 4 through the connection hole 4 so as to be engaged with the large-diameter portion bottom edge 4b 'via the sliding and adjusting ring 8. 4 is protruded from the small-diameter portion 4a, fitted into the small-diameter portion 3a of the connection hole 3 of one housing 1, and assembled to both housings 1 and 2.

この締付けナット６の前記角筒部６ｂには、前記締付けボルト５の螺杆部５ｂを前記一方の鋏体１に設けた前記接続孔３を通じて螺合、締付けてある。 A screw portion 5b of the tightening bolt 5 is screwed and tightened to the square tube portion 6b of the tightening nut 6 through the connection hole 3 provided in the one housing 1.

締付けボルト５は工具の係止溝１０を表面に備え、底面側に前記接続孔３の大径部底縁３ａ´と一致するテーパ縁を設けた頭部５ａに螺杆部５ｂを一体に連設して構成したもので、頭部５ａを接続孔３の大径部３ｂに嵌合し、かつ、すべり止め（緩み止め）兼調節リング１１を介して大径部底縁３ｂ´に係止させるようにして螺杆部５ｂを接続孔３を通じて前記締付けナット６のねじ孔６´に螺合して締付け、螺杆部５ｂ先端を締付けナット６の頭部６ａより突出させたものである。 The tightening bolt 5 is provided with a locking groove 10 for a tool on the surface, and a screw portion 5b is integrally connected to a head portion 5a provided with a tapered edge that coincides with the bottom edge 3a 'of the connecting hole 3 on the bottom surface side. The head portion 5a is fitted to the large diameter portion 3b of the connection hole 3 and is locked to the large diameter portion bottom edge 3b 'via the anti-slip (loosening prevention) / adjustment ring 11. In this way, the screw portion 5b is screwed into the screw hole 6 'of the tightening nut 6 through the connection hole 3 and tightened, and the tip of the screw portion 5b is protruded from the head 6a of the tightening nut 6.

この締付けボルト５の、締付けナット頭部６ａより突出する螺杆部５ｂ先端には、すべり止め（緩み止め）リング１２を介して前記緩み止めナット７を螺合、締付けてある。 The locking nut 5 is screwed and tightened to the tip of the threaded portion 5b protruding from the clamping nut head 6a of the clamping bolt 5 via a non-slip (loosening prevention) ring 12.

緩み止めナット７は、表面に工具係止用の受止溝１３を設けた円形主体部７ａの中央部に締付けナット頭部６ａに設けた前記凹陥部９の内径とほぼ同径の外径を備えた突出部７ｂを一体に連設して構成し、突出部７ｂを凹陥部９に嵌合するようにして締付けボルト５に螺合、組付けたものである。 The locking nut 7 has an outer diameter substantially the same as the inner diameter of the recessed portion 9 provided in the tightening nut head 6a at the center of the circular main body 7a provided with a receiving groove 13 for locking the tool on the surface. The projecting portion 7b provided is integrally connected, and the projecting portion 7b is screwed and assembled to the tightening bolt 5 so as to fit into the recessed portion 9.

しかして、すべり兼調節リング８を係合した接続孔４にその大径部４ｂ側から締付けナット６を嵌挿して他方の鋏体２に組付け、鋏体２（接続孔４の小径部４ａ）より突出する締付けナット６の角筒部６ｂに、接続孔３の小径部３ａを嵌合して一方の鋏体１を組合わせ、一方の鋏体１側の、すべり止め兼調節リング１１を係合した接続孔３を通じて締付けボルト５の螺杆部５ｂを締付けナット６に螺合し、締付けナット６より突出する該螺杆部５ｂの先端にすべり止めリング１２を介して緩み止めナット７を螺合することにより、各鋏体１，２を互いに回動自在に枢着して鋏Ａを得るのである。 Then, the fastening nut 6 is fitted into the connecting hole 4 engaged with the slip / adjustment ring 8 from the large diameter portion 4b side and assembled to the other housing 2, and the housing 2 (the small diameter portion 4a of the connecting hole 4) is assembled. ) The small diameter portion 3a of the connection hole 3 is fitted to the square tube portion 6b of the tightening nut 6 that protrudes further, and one case 1 is combined, and the non-slip and adjusting ring 11 on the one case 1 side is assembled. The screw 5b of the tightening bolt 5 is screwed to the tightening nut 6 through the engaged connection hole 3, and the locking nut 7 is screwed to the tip of the screw 5b protruding from the tightening nut 6 via the anti-slip ring 12. By doing so, the housings 1 and 2 are pivotally attached to each other so as to obtain the cage A.

なお、緩み止めナット７でより強い緩み止め効果を発揮させるためにできるだけ多くねじ山を確保したいが、該ナット７を実施例のように突出部７ｂを備えた凸形状に、ねじ山を増やす場合、該ナットの鋏体２からの突出が大きくなり、外観的見栄えやカットの作業に支障をきたすおそれがあるため、緩み止めナット７側に突出部７ｂを設けてその突出分だけねじ山を増加させ、かつ、その突出分、鋏体２表面から突出しないように締付けナット６側にそれが係合する凹陥部９を設けてあり、例えば、一対の物品を単に締め付ける場合は、実施例中のリング８，１１，１２は省略して良く、角筒部６ｂも必ずしも必要としない。また、物品より突出したボルト先端に締付けナットと緩み止めナットを前記物品の外側で重ね合わせた構造の、物品の締付け装置に適用できることは勿論である。 In order to achieve a stronger locking effect with the locking nut 7, it is desired to secure as many threads as possible, but when the nut 7 is increased to a convex shape having a protruding portion 7b as in the embodiment, the thread is increased. Since the protrusion of the nut from the housing 2 becomes large, which may hinder the appearance and cutting work, a protrusion 7b is provided on the locking nut 7 side, and the thread is increased by the protrusion. In addition, a recessed portion 9 is provided on the side of the tightening nut 6 so that the protruding portion does not protrude from the surface of the housing 2. For example, when a pair of articles is simply tightened, The rings 8, 11, and 12 may be omitted, and the square tube portion 6b is not necessarily required. Further, it is needless to say that the present invention can be applied to an article clamping device having a structure in which a tightening nut and a locking nut are overlapped on the outer side of the article on the tip of a bolt protruding from the article.

断面図。Sectional drawing.

Explanation of symbols

１一方の鋏体
２他方の鋏体
５締付けボルト
６締付けナット
７緩み止めナット
７ｂ突出部
９凹陥部
DESCRIPTION OF SYMBOLS 1 One housing | casing 2 The other housing 5 Clamping bolt 6 Clamping nut 7 Loosening prevention nut 7b Protrusion part 9 Recessed part

Claims

A tightening device in which a tightening nut and a locking nut are sequentially screwed onto the tip of a bolt to tighten an article interposed between the head of the bolt and the tightening nut. A product tightening device in which a protruding portion provided at a central portion of the locking nut is engaged with a recessed portion.