JPS63115614U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は軸部の先端部が第二の部品のねじ穴に
螺合して第一の部品と第二の部品とが接合してい
る状態の断面図、第２図は軸部の先端部が第二の
部品のねじ穴から外れている状態の断面図、第３
図はこの考案に係るねじ部材脱落防止構造の適用
例として自動車用ヘツドランプ装置を示す図であ
る。 １０……ねじ（ねじ部材）、１２……頭部、１
４……軸部、１６……第一の部品、１８……挿通
穴、２０……第二の部品、２４……ねじ穴、２６
……ナツト（抜け止め部材）。 Figure 1 is a cross-sectional view of the state in which the tip of the shaft is screwed into the screw hole of the second component and the first and second parts are joined, and Figure 2 is the tip of the shaft. 3rd cross-sectional view of the part removed from the screw hole of the second part;
The figure shows an automobile headlamp device as an application example of the screw member falling-off prevention structure according to the present invention. 10... Screw (screw member), 12... Head, 1
4... Shaft portion, 16... First part, 18... Insertion hole, 20... Second part, 24... Screw hole, 26
... Nut (retaining member).

Claims (1)

【実用新案登録請求の範囲】 (1) ねじ部材が、頭部と、この頭部から軸方向
へ延びて周面にねじ溝を切られている軸部とを有
し、かつこの軸部を第一の部品の挿通穴に挿通さ
れ、第二の部品が、前記第一の部品の前記挿通穴
から前記ねじ部材の軸方向へ離れた位置にねじ穴
を有し、前記ねじ部材の前記軸部の先端部が前記
第二の部品の前記ねじ穴に螺合され、抜け止め部
材は、前記ねじ部材が前記第二の部品の前記ねじ
穴に螺合及び抜け可能になる軸方向位置において
前記ねじ部材の前記軸部に取付けられ、かつ前記
挿通穴より大きい径を有していることを特徴とす
るねじ部材脱落防止構造。 (2) 前記ねじ部材は、ねじ又はボルトであるこ
とを特徴とする実用新案登録請求の範囲第１項記
載のねじ部材脱落防止構造。 (3) 前記抜け止め部材は、前記ねじ部材の前記
軸部に螺合するナツトであることを特徴とする実
用新案登録請求の範囲第１項又は第２項記載のね
じ部材脱落防止構造。[Claims for Utility Model Registration] (1) A screw member has a head and a shaft extending from the head in the axial direction and having a threaded groove cut on its circumferential surface; the second component is inserted into the insertion hole of the first component, the second component has a screw hole at a position apart from the insertion hole of the first component in the axial direction of the screw member, and The distal end of the screw member is screwed into the screw hole of the second component, and the retaining member is located at an axial position where the screw member can be screwed into and removed from the screw hole of the second component. A structure for preventing a screw member from falling off, the structure being attached to the shaft portion of a screw member and having a diameter larger than the insertion hole. (2) The screw member falling-off prevention structure according to claim 1, wherein the screw member is a screw or a bolt. (3) The screw member falling-off prevention structure according to claim 1 or 2, wherein the retaining member is a nut that is screwed into the shaft portion of the screw member.