JP3084322U - Screw mounting structure and screw mounting structure for VTR tension arm - Google Patents
Screw mounting structure and screw mounting structure for VTR tension armInfo
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- JP3084322U JP3084322U JP2001005659U JP2001005659U JP3084322U JP 3084322 U JP3084322 U JP 3084322U JP 2001005659 U JP2001005659 U JP 2001005659U JP 2001005659 U JP2001005659 U JP 2001005659U JP 3084322 U JP3084322 U JP 3084322U
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Abstract
(57)【要約】
【課題】板状部材に取り付けられたビスのねじり度合い
により、支持板に対して板状部材の高さを調整可能にす
るビスの取り付け構造であって、タップ加工が不要で、
コストの抑制が可能なビスの取り付け構造を提供する。
【解決手段】板状部材１に設けられた円形の貫通穴７の
周縁部８がテーパ状に成形され、その周縁部８は半周毎
に区分けした第１の周縁部８ａと第２の周縁部８ｂとに
なっている。その周縁部８ａ、８ｂの厚みｔ１は、ビス
３のネジ部４の１ピッチｔ２よりも薄くなっており、ビ
ス３は、第１の周縁部８ａでネジ部４と噛合し、第２の
周縁部８ｂでは貫通穴７の側面７ａがネジ部４のネジ山
の頂部４ａに当接することにより、挟持されて貫通穴７
に螺合し、ビス３の先端３ａが支持板２上の基準面２ａ
に当接する。
(57) [Summary] [Problem] A screw mounting structure in which the height of a plate member with respect to a support plate can be adjusted according to the degree of torsion of the screw mounted on the plate member, and tapping is unnecessary. so,
Provided is a screw mounting structure capable of suppressing cost. A peripheral part of a circular through hole provided in a plate-like member is formed into a tapered shape, and the peripheral part is divided into a first peripheral part and a second peripheral part divided in half-peripheries. 8b. The thickness t1 of the peripheral portions 8a and 8b is thinner than one pitch t2 of the screw portion 4 of the screw 3, and the screw 3 meshes with the screw portion 4 at the first peripheral portion 8a, and the second peripheral edge is formed. In the portion 8b, the side surface 7a of the through hole 7 abuts on the top 4a of the screw thread of the screw portion 4 so that the through hole 7 is pinched.
And the tip 3a of the screw 3 is fixed to the reference surface 2a on the support plate 2.
Abut.
Description
【０００１】[0001]
本考案は、例えば、ＶＴＲに搭載されるテンションアームのような板状部材に 螺合して取り付けられるビスの取り付け構造に関し、特に、ビスのねじり度合い によりフレーム等の支持板が有する基準面に対して板状部材の高さを調整可能に するビスの取り付け構造に関する。 The present invention relates to, for example, a screw mounting structure which is screwed to a plate-like member such as a tension arm mounted on a VTR, and particularly to a reference surface of a support plate such as a frame depending on the degree of screw twist. The present invention relates to a screw mounting structure that allows the height of a plate-shaped member to be adjustable.
【０００２】[0002]
従来のビスの取り付け構造について、図面を参照しながら以下に説明する。図 ５は従来のビスの取り付け構造を表す板状部材の一部の平面図が、図６はビスが 取り付けられた図５のＣ−Ｃ断面図がそれぞれ示されている。１はＶＴＲ等に搭 載されるテンションアームのような金属製の板状部材、２はそのＶＴＲ等のフレ ームに当たる支持板、３は板状部材１に取り付けられるビスである。支持板２に は支軸５が立設され、板状部材１はその支軸５に通孔６が嵌合して回動可能（図 ５、６中の矢印Ｒ）になっている。板状部材１には、円形の貫通穴７が形成され 、その貫通穴７には雌ネジ部１０が形成されている。ビス３は、その雌ネジ部１ ０に対応する雄ネジ部１１が形成された標準的なビスである。 A conventional screw mounting structure will be described below with reference to the drawings. FIG. 5 is a plan view of a part of a plate-like member showing a conventional screw mounting structure, and FIG. 6 is a cross-sectional view taken along line CC of FIG. Reference numeral 1 denotes a metal plate-like member such as a tension arm mounted on a VTR or the like, reference numeral 2 denotes a support plate corresponding to a frame of the VTR or the like, and reference numeral 3 denotes a screw attached to the plate-like member 1. A support shaft 5 is erected on the support plate 2, and the plate-like member 1 is rotatable by fitting a through hole 6 to the support shaft 5 (arrow R in FIGS. 5 and 6). A circular through hole 7 is formed in the plate-shaped member 1, and a female screw portion 10 is formed in the through hole 7. The screw 3 is a standard screw in which a male screw portion 11 corresponding to the female screw portion 10 is formed.
【０００３】 このような構成により、ビス３は雌ネジ部１０と雄ネジ部１１とが噛み合いな がら貫通穴７に螺合し、ビス３の先端３ａが支持板２上の基準面２ａに当接する 。そして、ビス３のねじり度合いにより、板状部材１から突出するビス３の先端 ３ａまでの突出量、すなわち、支持板２の基準面２ａに対する板状部材１の高さ Ｈが調整可能になっている。With such a configuration, the screw 3 is screwed into the through hole 7 while the female screw portion 10 and the male screw portion 11 are engaged with each other, and the tip 3a of the screw 3 contacts the reference surface 2a on the support plate 2. Contact The amount of protrusion of the screw 3 protruding from the plate member 1 to the tip 3a, that is, the height H of the plate member 1 with respect to the reference surface 2a of the support plate 2 can be adjusted by the degree of twist of the screw 3. I have.
【０００４】[0004]
ところで、このような従来のビスの取り付け構造では、雌ネジ部１０を形成す ることが必要なので、その板状部材１を製作する上で、一般に、ポンチ抜き等の 穴明け加工で貫通穴７を形成した後、その貫通穴７にタップ加工を施すというよ うな工程を踏まなければならない。しかし、このタップ加工は、ある程度の加工 時間を要すだけでなく、その加工を施す設備が構造的に複雑となるため、コスト アップにつながるという問題がある。 By the way, in such a conventional screw mounting structure, it is necessary to form the female screw portion 10. Therefore, when manufacturing the plate-like member 1, generally, the through hole 7 is formed by punching or the like. After forming the hole, a step of tapping the through hole 7 must be taken. However, this tapping process not only requires a certain amount of processing time, but also has a problem that the equipment for performing the processing is structurally complicated, which leads to an increase in cost.
【０００５】 この問題に対して、例えば、ビス３としてタップ機能を有するタッピングネジ を適用することにより、タップ加工工程を省略する手法が提案されているが、タ ッピングネジそのものは特殊であるため高価となり、コストの抑制に対して決し てよいとはいえない。To solve this problem, a method has been proposed in which a tapping step is omitted by applying a tapping screw having a tap function as the screw 3, for example, but the tapping screw itself is special and expensive. However, it cannot be said that it is good to control costs.
【０００６】 なお、例えば、特開昭５７−１１０８１３号公報では、貫通穴の周縁部が螺旋 状に形成された板状のワークと、その螺旋状の周縁部と螺合するネジ部を有した 当接部材とからなり、当接部材の所定回転角度毎で互いの相対回転に抗する手段 を備えた当接組立体が開示されているが、貫通穴の周縁部を螺旋状に成形するこ とは極めて困難であり、コスト抑制に対してはやはり不利である。[0006] For example, Japanese Patent Application Laid-Open No. S57-110913 has a plate-shaped work in which the peripheral portion of a through hole is formed in a spiral shape, and a screw portion that is screwed with the spiral peripheral portion. A contact assembly comprising a contact member and having means for resisting relative rotation of the contact member at each predetermined rotation angle is disclosed. However, a peripheral portion of the through hole is formed in a spiral shape. Is extremely difficult, and it is still disadvantageous for cost control.
【０００７】 そこで、本考案は、上記の問題に鑑みてなされたものであり、タップ加工が不 要で、コストの抑制が可能なビスの取り付け構造及びＶＴＲのテンションアーム におけるビスの取り付け構造を提供することを目的とするものである。In view of the above, the present invention has been made in view of the above-described problems, and provides a screw mounting structure that does not require tapping and that can reduce costs and a screw mounting structure in a VTR tension arm. It is intended to do so.
【０００８】[0008]
上記目的を達成するため、本考案によるＶＴＲのテンションアームにおけるビ スの取り付け構造は、支持板に立設した支軸に対して回動可能なＶＴＲのテンシ ョンアームに円形の貫通穴が形成され、その貫通穴に螺合したビスの先端が前記 支持板に当接しており、前記ビスのねじり度合いにより、前記支持板に対して前 記テンションアームの高さを調整可能にするＶＴＲのテンションアームにおける ビスの取り付け構造において、前記貫通穴の周縁部がＣ面押し加工によりテーパ 状に成形されて、その周縁部の厚みが前記ビスのネジ部１ピッチよりも薄くなっ ており、前記周縁部の半周部分が前記ビスのネジ部に対応して噛合するとともに 、その半周部分に対向する他方の半周部分における前記貫通穴の側面が前記ビス のネジ山の頂部に当接することにより、前記ビスが挟持される。 In order to achieve the above object, a screw mounting structure for a VTR tension arm according to the present invention has a circular through hole formed in a VTR tension arm that is rotatable with respect to a support shaft erected on a support plate. The tip of a screw screwed into the through hole is in contact with the support plate, and the height of the tension arm with respect to the support plate can be adjusted with respect to the support plate according to the degree of twist of the screw. In the screw mounting structure, the peripheral portion of the through hole is formed into a tapered shape by C-face pressing, and the thickness of the peripheral portion is smaller than one pitch of the screw portion of the screw. A portion corresponding to the screw portion of the screw, and a side surface of the through hole in the other half circumferential portion facing the half circumferential portion thereof is a top portion of the screw thread of the screw. By contacting the bis is held.
【０００９】 また、本考案によるビスの取り付け構造は、板状部材に円形の貫通穴が形成さ れ、その貫通穴に螺合したビスの先端が基準面に当接しており、前記ビスのねじ り度合いにより、前記基準面に対して前記板状部材の高さを調整可能にするビス の取り付け構造において、前記貫通穴の周縁部の厚みが前記ビスのネジ部１ピッ チよりも薄くなっており、前記周縁部の半周部分が前記ビスのネジ部に対応して 噛合するとともに、その半周部分に対向する他方の半周部分における前記貫通穴 の側面が前記ビスのネジ山の頂部に当接することにより、前記ビスが挟持されて いる。In the screw mounting structure according to the present invention, a circular through hole is formed in the plate-like member, and a tip of a screw screwed into the through hole is in contact with a reference surface. In a screw mounting structure that allows the height of the plate-like member to be adjusted with respect to the reference surface according to the degree of the screw, the peripheral edge of the through hole is thinner than the screw portion of the screw. A half-peripheral portion of the peripheral edge meshes with the screw portion of the screw, and a side surface of the through hole in the other half-peripheral portion facing the half-peripheral portion abuts on the top of the screw thread of the screw. Thereby, the screw is pinched.
【００１０】 更に、前記基準面に対しての高さ調整が必要で回動が可能な板状部材を容易に 得る目的で、前記板状部材が前記基準面に立設された支軸に対して回動が可能で ある。[0010] Further, in order to easily obtain a rotatable plate-like member which needs to be adjusted in height with respect to the reference plane, the plate-like member is mounted on a support shaft provided on the reference plane. It can rotate.
【００１１】 そして、前記貫通穴の周縁部の厚みを前記ビスのネジ部１ピッチよりも薄くす るためには、前記周縁部がテーパ状に成形されているとよい。その成形容易性を 考慮すると、前記周縁部がＣ面押し加工によりテーパ状に成形されることが好ま しい。In order to make the thickness of the peripheral portion of the through hole smaller than one pitch of the screw portion of the screw, the peripheral portion may be formed in a tapered shape. Considering the ease of forming, it is preferable that the peripheral portion is formed into a tapered shape by C-face pressing.
【００１２】[0012]
以下に、本考案の実施形態について図面を参照しながら説明する。図１は本考 案のビスの取り付け構造を表す板状部材の一部の平面図が、図２はビスが取り付 けられた図１のＡ−Ａ断面図が、図３はビスが取り付けられた図１のＢ−Ｂ断面 図がそれぞれ示されている。なお、図中で図５、６と同一の名称の部分には同じ 符号を付しており、重複する説明は省略する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a plan view of a part of a plate-like member showing a screw mounting structure of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 with screws mounted, and FIG. BB sectional views of FIG. 1 are shown, respectively. In the drawings, parts having the same names as those in FIGS. 5 and 6 are denoted by the same reference numerals, and redundant description will be omitted.
【００１３】 １はＶＴＲ等に搭載されるテンションアームのような金属製の板状部材、２は そのＶＴＲ等のフレームに当たる支持板、３は板状部材１に取り付けられる標準 的なビスである。ビス３にはネジ部４が形成され、支持板２には支軸５が立設さ れ、板状部材１はその支軸５に通孔６が嵌合して回動可能（図１、２中の矢印Ｒ ）になっている。板状部材１には円形の貫通穴７が形成され、その貫通穴７の周 縁部８がテーパ状に成形されている。特に、その周縁部８の厚みｔ１と、ビス３ のネジ部４の１ピッチｔ２とには、ｔ１＜ｔ２の関係が成り立っている。Reference numeral 1 denotes a metal plate-like member such as a tension arm mounted on a VTR or the like, reference numeral 2 denotes a support plate corresponding to a frame of the VTR or the like, and reference numeral 3 denotes standard screws attached to the plate-like member 1. A screw portion 4 is formed in the screw 3, a support shaft 5 is provided upright on the support plate 2, and the plate-like member 1 is rotatable by fitting a through hole 6 to the support shaft 5 (FIG. 1, FIG. The arrow R 2 in FIG. A circular through hole 7 is formed in the plate-like member 1, and a peripheral portion 8 of the through hole 7 is formed in a tapered shape. In particular, the relationship of t1 <t2 is established between the thickness t1 of the peripheral portion 8 and one pitch t2 of the screw portion 4 of the screw 3.
【００１４】 ここで、周縁部８をテーパ状に成形する手法は種々あるが、本実施形態では、 Ｃ面押し加工を適用している。何故ならば、Ｃ面押し加工は、ポンチ抜き等の穴 明け加工で形成した貫通穴７の周縁部８を、単純にすり鉢状に突出した金型で同 芯状に押し込むという簡単な手法であるし、しかも、従来のタップ加工に比べて 著しく加工時間が少なく、その加工を施す設備も構造的に単純となるため、量産 性に富み、コストの抑制に対して有利であるからである。Here, there are various methods for forming the peripheral portion 8 into a tapered shape. In the present embodiment, a C-plane pressing process is applied. The reason is that the C-plane pressing is a simple method of simply pressing the peripheral portion 8 of the through hole 7 formed by punching or the like concentrically with a mold protruding in a mortar shape. In addition, the processing time is significantly shorter than that of conventional tapping, and the equipment for performing the tapping is structurally simple, so that it is rich in mass productivity and advantageous for cost reduction.
【００１５】 次に、これらの態様について説明する。今、説明の便宜上、周縁部８を半周毎 に区分けした第１の周縁部８ａと第２の周縁部８ｂを定める（図１参照）。図３ に示されるように、ビス３は、第１の周縁部８ａでネジ部４と噛合し、一方、第 ２の周縁部８ｂでは貫通穴７の側面７ａがネジ部４のネジ山の頂部４ａに当接す ることにより、挟持されて貫通穴７に螺合し、ビス３の先端３ａが支持板２上の 基準面２ａに当接する。ここで、ビス３は貫通穴７に対して傾倒し、第１の周縁 部８ａと第２の周縁部８ｂの境界付近では、周縁部８とネジ部４は遊嵌した状態 である。そして、ビス３のねじり度合いにより、板状部材１から突出するビス３ の先端３ａまでの突出量、すなわち、支持板２の基準面２ａに対する板状部材１ の高さＨが調整可能になっている。また、ビス３は貫通穴７に挟持されているの で緩み難く、基準面２ａに対する板状部材１の高さは安定している。Next, these embodiments will be described. Now, for convenience of description, a first peripheral portion 8a and a second peripheral portion 8b, which are obtained by dividing the peripheral portion 8 into half circles, are defined (see FIG. 1). As shown in FIG. 3, the screw 3 meshes with the screw portion 4 at the first peripheral portion 8a, while the side surface 7a of the through hole 7 at the second peripheral portion 8b is the top of the thread of the screw portion 4. By contacting the screw 4 a, the screw 3 is pinched and screwed into the through hole 7, and the tip 3 a of the screw 3 contacts the reference surface 2 a on the support plate 2. Here, the screw 3 is inclined with respect to the through hole 7, and the peripheral portion 8 and the screw portion 4 are in a state of being loosely fitted near the boundary between the first peripheral portion 8a and the second peripheral portion 8b. The amount of protrusion of the screw 3 projecting from the plate member 1 to the tip 3a, that is, the height H of the plate member 1 with respect to the reference surface 2a of the support plate 2 can be adjusted according to the degree of twist of the screw 3. I have. Further, since the screw 3 is sandwiched between the through holes 7, it is difficult to loosen, and the height of the plate-like member 1 with respect to the reference surface 2a is stable.
【００１６】 なお、このようなビスの取り付け構造が用いられる装置の一例を、図４に示し ておく。図４はＶＨＳ方式ＶＴＲの一般的な内部構造を示す平面図である。上記 した板状部材１としては、テンションアーム２１等が相当し、そのテンションア ーム２１は支持板（図中で紙面に相当）に立設された支軸５に対して回動可能に なっている。ここで、その支持板に対するテンションアーム２１の高さはビス３ で調整され、テンションアーム２１は一定の高さで回動する。また、テンション アーム２１の端部には、ＶＴＲテープ２３をガイドする回転ポール２４が設けら れている。FIG. 4 shows an example of an apparatus using such a screw mounting structure. FIG. 4 is a plan view showing a general internal structure of a VHS system VTR. The above-mentioned plate-shaped member 1 corresponds to a tension arm 21 or the like, and the tension arm 21 is rotatable with respect to a support shaft 5 erected on a support plate (corresponding to the paper surface in the drawing). ing. Here, the height of the tension arm 21 with respect to the support plate is adjusted by the screw 3, and the tension arm 21 rotates at a constant height. A rotating pole 24 for guiding the VTR tape 23 is provided at an end of the tension arm 21.
【００１７】 テンションアーム２１の概略動作について以下に説明しておく。ＶＴＲテープ ２３は供給リール２５と巻取リール２６とに巻かれてカセットテープ２７に収納 されており、ＲＥＷ（巻き戻し）が開始されると、テンションアーム２１が支軸 ５を支点に回動し、この回動動作に伴い、回転ポール２４がＶＴＲテープ２３に 押し当てられてテンションを与える。ここで、回転ポール２４はＶＴＲテープ２ ３を高位置精度でガイドすることが要求されるが、本考案のビスの取り付け構造 により、安定した高さ位置が確保され、その高さ調整も容易に行える。The general operation of the tension arm 21 will be described below. The VTR tape 23 is wound around a supply reel 25 and a take-up reel 26 and stored in a cassette tape 27. When REW (rewind) is started, the tension arm 21 rotates about the support shaft 5 as a fulcrum. With this rotation, the rotating pole 24 is pressed against the VTR tape 23 to apply tension. Here, the rotating pole 24 is required to guide the VTR tape 23 with high positional accuracy. However, the screw mounting structure of the present invention secures a stable height position and easily adjusts the height. I can do it.
【００１８】 なお、本考案は上記の実施形態に限定されず、本考案の趣旨を逸脱しない範囲 で、種々の変更が可能である。例えば、板状部材１は、支持板２に対して回動す るものに限らず、平行移動するものや、或いは、動作は固定で単に高さ方向にの み調整移動が可能なものであっても構わない。The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the plate-like member 1 is not limited to a member that rotates with respect to the support plate 2, but a member that moves in parallel, or a member whose operation is fixed and can be adjusted and moved only in the height direction. It does not matter.
【００１９】[0019]
以上説明した通り本考案によれば、支持板に立設した支軸に対して回動可能な ＶＴＲのテンションアームに円形の貫通穴が形成され、その貫通穴に螺合したビ スの先端が前記支持板に当接しており、前記ビスのねじり度合いにより、前記支 持板に対して前記テンションアームの高さを調整可能にするＶＴＲのテンション アームにおけるビスの取り付け構造において、前記貫通穴の周縁部がＣ面押し加 工によりテーパ状に成形されて、その周縁部の厚みが前記ビスのネジ部１ピッチ よりも薄くなっているので、タップ加工が不要で、コストの抑制が可能である。 しかも、前記周縁部の半周部分が前記ビスのネジ部に対応して噛合するとともに 、その半周部分に対向する他方の半周部分における前記貫通穴の側面が前記ビス のネジ山の頂部に当接することにより、前記ビスが挟持されるので、テンション アームの回動が繰り返されてもビスは緩み難く、支持板に対するテンションアー ムの高さが安定する。 As described above, according to the present invention, a circular through-hole is formed in the tension arm of the VTR that can rotate with respect to the support shaft erected on the support plate, and the tip of the screw screwed into the through-hole is formed. In a structure for mounting a screw in a tension arm of a VTR, wherein the height of the tension arm is adjustable with respect to the support plate according to a degree of twist of the screw, the periphery of the through hole Since the portion is formed into a tapered shape by C-face pressing and the thickness of the peripheral portion is thinner than one pitch of the screw portion of the screw, tapping is unnecessary and cost can be suppressed. In addition, a half-peripheral portion of the peripheral edge portion meshes with the screw portion of the screw, and a side surface of the through hole in the other half-peripheral portion facing the half-peripheral portion abuts on the top of the screw thread of the screw. As a result, the screw is pinched, so that the screw is unlikely to be loosened even if the rotation of the tension arm is repeated, and the height of the tension arm with respect to the support plate is stabilized.
【００２０】 また、板状部材に円形の貫通穴が形成され、その貫通穴に螺合したビスの先端 が基準面に当接しており、前記ビスのねじり度合いにより、前記基準面に対して 前記板状部材の高さを調整可能にするビスの取り付け構造において、前記貫通穴 の周縁部の厚みが前記ビスのネジ部１ピッチよりも薄くなっており、前記周縁部 の半周部分が前記ビスのネジ部に対応して噛合するとともに、その半周部分に対 向する他方の半周部分における前記貫通穴の側面が前記ビスのネジ山の頂部に当 接することにより、前記ビスが挟持されていると、タップ加工が不要で、コスト の抑制が可能であり、しかも、ビスは緩み難く、基準面に対する板状部材の高さ が安定する。Further, a circular through-hole is formed in the plate-shaped member, and a tip of a screw screwed into the through-hole is in contact with a reference surface. In a screw mounting structure capable of adjusting the height of the plate-like member, a thickness of a peripheral portion of the through hole is smaller than one pitch of a screw portion of the screw, and a half peripheral portion of the peripheral portion is formed of the screw. When the screw is held by the side of the through-hole in the other half-circumferential portion facing the half-circumferential portion of the screw being in contact with the screw portion, the screw is pinched. Tapping is not required, cost can be reduced, screws are not easily loosened, and the height of the plate-shaped member relative to the reference surface is stabilized.
【００２１】 更に、前記板状部材が前記基準面に立設された支軸に対して回動が可能である と、基準面に対しての高さ調整が必要で回動が可能な板状部材を容易に得ること ができる。Further, when the plate-shaped member is rotatable with respect to a support shaft erected on the reference surface, a height is required to be adjusted with respect to the reference surface, and the plate-shaped member is rotatable. The member can be easily obtained.
【００２２】 そして、前記周縁部がテーパ状に成形されていると、前記貫通穴の周縁部の厚 みを前記ビスのネジ部１ピッチよりも薄くするのが容易である。例えば、Ｃ面押 し加工を施すことにより、極めて容易にテーパ状の周縁部を形成することができ るし、しかも、そのＣ面押し加工は、従来のタップ加工に比べて著しく加工時間 が少なく、その加工を施す設備も構造的に単純となるため、量産性に富み、コス トの抑制に対して有利である。When the peripheral portion is formed in a tapered shape, it is easy to make the peripheral portion of the through hole thinner than one pitch of the screw portion of the screw. For example, a tapered peripheral portion can be formed very easily by performing the C-face pressing, and the processing time of the C-face pressing is significantly shorter than that of the conventional tapping. In addition, since the equipment for performing the processing is structurally simple, it is rich in mass productivity and is advantageous for cost reduction.
【図１】 本考案のビスの取り付け構造を表す板状部
材の一部の平面図。FIG. 1 is a plan view of a part of a plate-like member showing a screw mounting structure of the present invention.
【図２】 ビスが取り付けられた図１のＡ−Ａ断面
図。FIG. 2 is a sectional view taken along the line AA of FIG. 1 with screws attached.
【図３】 ビスが取り付けられた図１のＢ−Ｂ断面
図。FIG. 3 is a sectional view taken along line BB of FIG. 1 with screws attached.
【図４】 本考案のビスの取り付け構造が用いられる
装置の一例であるＶＨＳ方式ＶＴＲの内部構造を示す平
面図。FIG. 4 is a plan view showing the internal structure of a VHS type VTR as an example of an apparatus using the screw mounting structure of the present invention.
【図５】 従来のビスの取り付け構造を表す板状部材
の一部の平面図。FIG. 5 is a plan view of a part of a plate-like member showing a conventional screw mounting structure.
【図６】 ビスが取り付けられた図５のＣ−Ｃ断面
図。FIG. 6 is a cross-sectional view taken along line CC of FIG. 5 with screws attached.
１ 板状部材 ２ 支持板 ３ ビス ４ ネジ部 ５ 支軸 ６ 通孔 ７ 貫通穴 ８ 周縁部 DESCRIPTION OF SYMBOLS 1 Plate-shaped member 2 Support plate 3 Screw 4 Screw part 5 Support shaft 6 Through hole 7 Through hole 8 Peripheral edge
Claims (5)
なＶＴＲのテンションアームに円形の貫通穴が形成さ
れ、その貫通穴に螺合したビスの先端が前記支持板に当
接しており、前記ビスのねじり度合いにより、前記支持
板に対して前記テンションアームの高さを調整可能にす
るＶＴＲのテンションアームにおけるビスの取り付け構
造において、 前記貫通穴の周縁部がＣ面押し加工によりテーパ状に成
形されて、その周縁部の厚みが前記ビスのネジ部１ピッ
チよりも薄くなっており、 前記周縁部の半周部分が前記ビスのネジ部に対応して噛
合するとともに、その半周部分に対向する他方の半周部
分における前記貫通穴の側面が前記ビスのネジ山の頂部
に当接することにより、前記ビスが挟持されることを特
徴とするＶＴＲのテンションアームにおけるビスの取り
付け構造。1. A circular through hole is formed in a tension arm of a VTR rotatable with respect to a support shaft erected on a support plate, and a tip of a screw screwed into the through hole abuts on the support plate. The height of the tension arm with respect to the support plate can be adjusted according to the degree of twist of the screw. In a structure for mounting a screw in a tension arm of a VTR, a peripheral portion of the through hole is formed by C-plane pressing. It is formed in a tapered shape, and the thickness of the peripheral portion is thinner than one pitch of the screw portion of the screw. A half peripheral portion of the peripheral portion meshes with the screw portion of the screw, and the half peripheral portion thereof A side surface of the through hole in the other half-circumferential portion of the VTR that abuts against a top of a screw thread of the screw, whereby the screw is clamped. The mounting structure of the definitive screw.
の貫通穴に螺合したビスの先端が基準面に当接してお
り、前記ビスのねじり度合いにより、前記基準面に対し
て前記板状部材の高さを調整可能にするビスの取り付け
構造において、前記貫通穴の周縁部の厚みが前記ビスの
ネジ部１ピッチよりも薄くなっており、 前記周縁部の半周部分が前記ビスのネジ部に対応して噛
合するとともに、その半周部分に対向する他方の半周部
分における前記貫通穴の側面が前記ビスのネジ山の頂部
に当接することにより、前記ビスが挟持されることを特
徴とするビスの取り付け構造。2. A circular through-hole is formed in a plate-like member, and a tip of a screw screwed into the through-hole is in contact with a reference surface. In a screw mounting structure capable of adjusting the height of a plate-like member, a thickness of a peripheral portion of the through hole is thinner than one pitch of a screw portion of the screw, and a half peripheral portion of the peripheral portion is formed of the screw. The screw is sandwiched by being engaged with the screw portion, and the side surface of the through hole in the other half circumferential portion facing the half circumferential portion abuts on the top of the screw thread of the screw. Screw mounting structure.
た支軸に対して回動が可能であることを特徴とする請求
項２に記載のビスの取り付け構造。3. The screw mounting structure according to claim 2, wherein the plate-like member is rotatable with respect to a support shaft erected on the reference surface.
ることを特徴とする請求項２又は３に記載のビスの取り
付け構造。4. The screw mounting structure according to claim 2, wherein said peripheral portion is formed in a tapered shape.
パ状に成形されていることを特徴とする請求項２又は３
に記載のビスの取り付け構造。5. The peripheral portion is formed in a tapered shape by a C-face pressing process.
Screw mounting structure described in 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001005659U JP3084322U (en) | 2001-08-28 | 2001-08-28 | Screw mounting structure and screw mounting structure for VTR tension arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001005659U JP3084322U (en) | 2001-08-28 | 2001-08-28 | Screw mounting structure and screw mounting structure for VTR tension arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3084322U true JP3084322U (en) | 2002-03-22 |
Family
ID=43235797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001005659U Expired - Fee Related JP3084322U (en) | 2001-08-28 | 2001-08-28 | Screw mounting structure and screw mounting structure for VTR tension arm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3084322U (en) |
-
2001
- 2001-08-28 JP JP2001005659U patent/JP3084322U/en not_active Expired - Fee Related
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