JP3030190B2 - Retaining shaft fixing mechanism - Google Patents
Retaining shaft fixing mechanismInfo
- Publication number
- JP3030190B2 JP3030190B2 JP5260603A JP26060393A JP3030190B2 JP 3030190 B2 JP3030190 B2 JP 3030190B2 JP 5260603 A JP5260603 A JP 5260603A JP 26060393 A JP26060393 A JP 26060393A JP 3030190 B2 JP3030190 B2 JP 3030190B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- hole
- reinforcing
- reinforcing shaft
- rotating chassis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、カセット装着機構の如
く、支持本体に一端部を枢支した回動シャーシ部材に於
いて、該部材の撓みを防止するために、回動シャーシ両
端の側壁に跨がって設けられる補強軸を固定する固定機
構に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating chassis member having one end pivotally supported on a supporting body, such as a cassette mounting mechanism, in order to prevent the member from bending. The present invention relates to a fixing mechanism for fixing a reinforcing shaft provided over a vehicle.
【０００２】[0002]
【従来の技術】補強される回動シャーシの一例として、
磁気記録再生装置のカセット装着機構について説明す
る。尚、カセットの挿入・取出しを行なう操作側を前方
とする。図７に示すように、磁気記録再生装置は、シャ
ーシ(１)の両端に立設した支持板(10)の間に、スライド
シャーシ(２)を前後に摺動可能に配備し、回動シャーシ
(５)の後部を上下に回転可能に配備している。スライド
シャーシ(２)には、一対のリール台(20)(20)が設けら
れ、回動シャーシ(５)には、カセットホルダ(50)が配備
されている。2. Description of the Related Art As an example of a rotating chassis to be reinforced,
The cassette mounting mechanism of the magnetic recording / reproducing apparatus will be described. The operation side for inserting and removing the cassette is defined as the front side. As shown in FIG. 7, the magnetic recording / reproducing apparatus has a sliding chassis (2) slidably disposed back and forth between support plates (10) erected on both ends of a chassis (1).
(5) The rear part is arranged to be rotatable up and down. The slide chassis (2) is provided with a pair of reel stands (20) and (20), and the rotating chassis (5) is provided with a cassette holder (50).
【０００３】カセットをローディングすると、図示しな
いメカニズムによってスライドシャーシ(２)が前進し、
回動シャーシ(５)が下降する。カセットローディングの
完了時点で、回動シャーシ(５)の自由端の一側部がロッ
ク部材(11)によってロックされる。回動シャーシ(５)は
薄板を折り曲げて形成されているが、剛性が小さいと図
８に点線で示すように捩り変形する。回動シャーシ(５)
が変形すると、カセットとリール台(20)(20)との係合が
不十分となり、また、回動シャーシ(５)が下降定位置に
達して初めて作動する各種スイッチが誤動作する虞れが
ある。従って、図４及び図６に示すように、回動シャー
シ(５)の左右両端の側壁(７)(８)間に、補強軸(３)を具
えたものがある。When a cassette is loaded, a slide chassis (2) advances by a mechanism (not shown),
The rotating chassis (5) descends. Upon completion of the cassette loading, one side of the free end of the rotating chassis (5) is locked by the lock member (11). The rotating chassis (5) is formed by bending a thin plate. If the rigidity is low, the rotating chassis (5) is torsionally deformed as shown by a dotted line in FIG. Rotating chassis (5)
Deformed, the engagement between the cassette and the reel bases (20) and (20) becomes insufficient, and various switches that operate only after the rotating chassis (5) reaches the fixed lower position may malfunction. . Therefore, as shown in FIG. 4 and FIG. 6, there is a rotating chassis (5) having a reinforcing shaft (3) between the side walls (7) and (8) at both left and right ends.
【０００４】補強軸(３)の一端面からは、筒軸(４)が突
設され、他端面には段穴(30)が軸方向に沿って開設され
ている。一方の側壁(８)には、筒軸(４)が嵌まる孔(80)
が開設され、他方の側壁(７)には、段穴(30)の開口より
小さな透孔(70)が開設されている。補強軸(３)は、以下
のようにして回動シャーシ(５)に固定される。補強軸
(３)を下方から、両側壁(７)(８)間に挿入し、筒軸(４)
を孔(80)に嵌めるとともに、段穴(30)の開口と透孔(70)
を合わせる。図６に示すように、補強軸(３)の筒軸(４)
を側壁(８)に通してかしめる。図４に示すように、透孔
(70)の外側から、連結部材(９)を圧入する。連結部材
(９)は、図５に示すように軸体であり、突条を形成した
圧入部材(90)が嵌められている。連結部材(９)は、透孔
(70)周縁を内側に折込んで変形させ、圧入部材(90)を段
穴(30)に食い込ませる。[0004] A cylindrical shaft (4) protrudes from one end surface of the reinforcing shaft (3), and a step hole (30) is formed in the other end surface along the axial direction. On one side wall (8), a hole (80) into which the cylindrical shaft (4) fits
The other side wall (7) is provided with a through hole (70) smaller than the opening of the step hole (30). The reinforcing shaft (3) is fixed to the rotating chassis (5) as follows. Reinforcing shaft
Insert (3) from below into the space between the side walls (7) and (8).
Into the hole (80), the opening of the step hole (30) and the through hole (70).
To match. As shown in FIG. 6, the cylindrical shaft (4) of the reinforcing shaft (3)
Through the side wall (8). As shown in FIG.
The connecting member (9) is press-fitted from outside the (70). Connecting member
(9) is a shaft body as shown in FIG. 5, in which a press-fitting member (90) having a ridge is fitted. The connecting member (9) is a through hole
(70) The peripheral edge is folded inward and deformed, and the press-fit member (90) is cut into the step hole (30).
【０００５】[0005]
【発明が解決しようとする課題】従来の固定構造では、
突条の加工精度や圧入作業のバラつきによって、補強軸
(３)の回動シャーシ(５)に対する固定強度がバラつく。
本発明は、かしめ加工によって、補強軸の安定した固定
強度を得ることを目的とする。In the conventional fixing structure,
Depending on the processing accuracy of the ridge and the dispersion of the press-fitting work, the reinforcing shaft
The fixing strength of (3) to the rotating chassis (5) varies.
An object of the present invention is to obtain a stable fixing strength of a reinforcing shaft by swaging.
【０００６】[0006]
【課題を解決する為の手段】回動シャーシのような補強
すべき部材の両端には、側壁(７)(８)が設けられ、両側
壁(７)(８)間には、補強軸(３)が設けられている。補強
軸(３)の両端面からは、夫々筒軸(４)が突出し、筒軸
(４)の略中央からは、枢軸(40)が突設されている。一方
の側壁(８)には筒軸(４)が嵌合する孔(80)が開設されて
いる。他方の側壁(７)には、補強軸(３)が貫通可能とな
るべく補強軸(３)の外径よりも大きく、かつ多角形状の
透孔(70)が開設されている。透孔(70)には、筒軸(４)が
貫通する嵌合板(６)が緊密に嵌まる。各筒軸(４)は孔(8
0)及び嵌合板(６)を貫通して、夫々かしめ固定されてい
る。かかる状態で、部材は枢軸(40)を中心として、回動
自在に取付けられる。Means for Solving the Problems Side walls (7) and (8) are provided at both ends of a member to be reinforced such as a rotating chassis, and a reinforcing shaft () is provided between both side walls (7) and (8). 3) is provided. The cylindrical shafts (4) protrude from both end surfaces of the reinforcing shaft (3), respectively.
A pivot (40) protrudes from substantially the center of (4). On one side wall (8), a hole (80) into which the cylindrical shaft (4) is fitted is formed. The other side wall (7) is provided with a polygonal through hole (70) larger than the outer diameter of the reinforcing shaft (3) so that the reinforcing shaft (3) can penetrate therethrough. A fitting plate (6) through which the cylindrical shaft (4) penetrates fits tightly into the through hole (70). Each cylinder shaft (4) has a hole (8
0) and the fitting plate (6), and are caulked and fixed respectively. In such a state, the member is rotatably mounted around the pivot (40).
【０００７】[0007]
【作用及び効果】各筒軸(４)が孔(80)及び嵌合板(６)を
貫通して、かしめ固定されているので、従来の圧入によ
る固定よりも、安定した固定力が得られる。また、透孔
(70)及び嵌合板(６)は多角形状であるので、補強軸(３)
に回転捩り力が加わっても、嵌合板(６)が透孔(70)に対
し、スリップして回転することがなく、部材の捩り剛性
が高められる。従って、部材が枢軸(40)を中心として回
動する場合の変形量が小さくなる。[Operation and Effect] Since each cylinder shaft (4) penetrates through the hole (80) and the fitting plate (6) and is fixed by caulking, a more stable fixing force can be obtained as compared with the conventional fixing by press fitting. Also, through-hole
Since (70) and the fitting plate (6) are polygonal, the reinforcing shaft (3)
Even if a rotational torsional force is applied to the member, the fitting plate (6) does not slip and rotate with respect to the through hole (70), and the torsional rigidity of the member is increased. Therefore, the amount of deformation when the member rotates about the pivot (40) is reduced.
【０００８】[0008]
【実施例】以下、本発明の一実施例につき、図面に沿っ
て詳述する。図１は、回動シャーシ(５)の両端の側壁
(７)(８)間に補強軸(３)を介装して、かしめた状態を示
している。回動シャーシ(５)及び側壁(７)(８)は、例え
ば鉄製の薄板から形成される。補強軸(３)の両端から
は、筒軸(４)が突出している。両筒軸(４)(４)の基端間
の距離は、側壁(７)(８)間の距離に略等しく設けられて
いる。筒軸(４)内部の中央からは、枢軸(40)が突出して
いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows the side walls at both ends of the rotating chassis (5).
(7) The state where the reinforcing shaft (3) is interposed between (8) and (8) is shown. The rotating chassis (5) and the side walls (7) and (8) are formed from, for example, a thin iron plate. A cylindrical shaft (4) projects from both ends of the reinforcing shaft (3). The distance between the base ends of the two cylindrical shafts (4) and (4) is substantially equal to the distance between the side walls (7) and (8). A pivot (40) protrudes from the center inside the cylindrical shaft (4).
【０００９】一方の側壁(８)には、筒軸(４)が嵌まる孔
(80)が開設され、他方の側壁(７)には、透孔(70)が開設
されている。透孔(70)は、図２に示すように、六角形で
あり、補強軸(３)が貫通できる大きさに形成されてい
る。透孔(70)に嵌まるべき嵌合板(６)は、透孔(70)と略
同一形状で、嵌合板(６)には筒軸(４)が貫通可能な六角
孔(60)が開設されている。嵌合板(６)は例えばステンレ
スにて形成される。In one side wall (8), a hole into which the cylinder shaft (4) fits.
(80) is opened, and a through hole (70) is opened in the other side wall (7). As shown in FIG. 2, the through hole (70) has a hexagonal shape and is formed to have a size that allows the reinforcing shaft (3) to pass therethrough. The fitting plate (6) to be fitted in the through hole (70) has substantially the same shape as the through hole (70), and the fitting plate (6) has a hexagonal hole (60) through which the cylindrical shaft (4) can pass. Have been. The fitting plate (6) is made of, for example, stainless steel.
【００１０】補強軸(３)は以下のようにして、回動シャ
ーシ(５)にかしめ固定される。先ず、補強軸(３)を外側
から、透孔(70)に挿入し、貫通させる。筒軸(４)を孔(8
0)に挿入し、補強軸(３)の一方の段面を側壁(８)内面に
突き当てる。このとき補強軸(３)の他端の段面は、側壁
(７)の内側と同一平面に位置する。The reinforcing shaft (3) is caulked and fixed to the rotating chassis (5) as follows. First, the reinforcing shaft (3) is inserted into the through hole (70) from the outside and penetrated. Insert the cylinder shaft (4) into the hole (8
0), and one step surface of the reinforcing shaft (3) is abutted against the inner surface of the side wall (8). At this time, the step surface at the other end of the reinforcing shaft (3) is a side wall.
It is located on the same plane as the inside of (7).
【００１１】図３に示すように、嵌合板(６)の六角孔(6
0)を筒軸(４)に貫通させ、透孔(70)に嵌める。嵌合板
(６)は透孔(70)に圧入されて、緊密に嵌まる。かかる状
態で、各筒軸(４)の先端部をかしめる。一方の筒軸(４)
先端部の肉は、透孔(70)と筒軸(４)の隙間を充填する。
補強軸(３)は、各筒軸(４)がかしめられることにより、
図１に示すように、側壁(７)(８)に固定される。枢軸(4
0)をシャーシ(１)の支持板(10)に嵌めれば、回動シャー
シ(５)は補強軸(３)で捩り剛性が高められて、シャーシ
(１)に回動自在に設けられる。As shown in FIG. 3, a hexagonal hole (6) of the fitting plate (6) is provided.
0) is passed through the cylindrical shaft (4) and fitted into the through hole (70). Mating plate
(6) is pressed into the through hole (70) and fits tightly. In this state, the tip of each cylinder shaft (4) is swaged. One cylinder shaft (4)
The meat at the tip fills the gap between the through hole (70) and the cylindrical shaft (4).
The reinforcing shaft (3) is caulked by each cylinder shaft (4),
As shown in FIG. 1, it is fixed to the side walls (7) and (8). Axis (4
(0) is fitted to the support plate (10) of the chassis (1), the torsional rigidity of the rotating chassis (5) is increased by the reinforcing shaft (3),
(1) is provided rotatably.
【００１２】上記のように、補強軸(３)は側壁(７)(８)
にかしめられるので、安定した固定強度を得ることがで
きる。また、透孔(70)及び嵌合板(６)は、多角形である
ので、補強軸(３)に回転捩り力が加わっても、嵌合板
(６)が透孔(70)に対し、スリップして回転することがな
く、回動シャーシ(５)の捩り剛性が高められる。さら
に、嵌合板(６)の六角孔(60)に筒軸(４)の肉が、筒軸
(４)と六角孔(60)の隙間を充填するので、補強軸(３)が
嵌合板(６)に対して回転することも抑えられる。As described above, the reinforcing shaft (3) has the side walls (7) and (8).
Since it is crimped, stable fixing strength can be obtained. Further, since the through-hole (70) and the fitting plate (6) are polygonal, even if a rotational torsional force is applied to the reinforcing shaft (3), the fitting plate (6) is not required.
(6) does not slip and rotate with respect to the through hole (70), and the torsional rigidity of the rotating chassis (5) is enhanced. Further, the hexagonal hole (60) of the fitting plate (6) is filled with the meat of the cylindrical shaft (4).
Since the gap between (4) and the hexagonal hole (60) is filled, rotation of the reinforcing shaft (3) with respect to the fitting plate (6) is also suppressed.
【００１３】上記実施例の説明は、本発明を説明するた
めのものであって、特許請求の範囲に記載の発明を限定
し、或は範囲を減縮する様に解すべきではない。又、本
発明の各部構成は上記実施例に限らず、特許請求の範囲
に記載の技術的範囲内で種々の変形が可能であることは
勿論である。例えば、透孔(70)及び嵌合板(６)は、六角
形としたが、多角形であればよい。また、筒軸(４)のか
しめは、嵌合板(６)が透孔(70)に圧入された後とした
が、嵌合板(６)の圧入と、筒軸(４)のかしめを同時に行
なってもよい。さらに、通常は補強軸(３)は切削加工等
により、筒軸(４)と一体に形成されるが、補強軸(３)の
端面に、筒軸(４)を溶接等によって設けてもよい。The description of the above embodiments is for the purpose of illustrating the present invention, and should not be construed as limiting the invention described in the appended claims or reducing the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims. For example, the through hole (70) and the fitting plate (6) are hexagonal, but may be polygonal. The crimping of the cylinder shaft (4) was performed after the fitting plate (6) was press-fitted into the through-hole (70). You may. Further, the reinforcing shaft (3) is usually formed integrally with the cylindrical shaft (4) by cutting or the like, but the cylindrical shaft (4) may be provided on the end face of the reinforcing shaft (3) by welding or the like. .
【図１】補強軸を回動シャーシに固定した状態の断面図
である。FIG. 1 is a sectional view showing a state in which a reinforcing shaft is fixed to a rotating chassis.
【図２】回動シャーシに補強軸と嵌合板を挿着する状態
の斜視図である。FIG. 2 is a perspective view showing a state in which a reinforcing shaft and a fitting plate are inserted into a rotating chassis.
【図３】回動シャーシに補強軸が挿着された状態の嵌合
板近傍の斜視図である。FIG. 3 is a perspective view of the vicinity of a fitting plate in a state where a reinforcing shaft is inserted into a rotating chassis.
【図４】従来の回動シャーシに補強軸を装着する状態の
斜視図である。FIG. 4 is a perspective view showing a state in which a reinforcing shaft is mounted on a conventional rotating chassis.
【図５】従来の連結部材の斜視図である。FIG. 5 is a perspective view of a conventional connecting member.
【図６】回動シャーシに補強軸がかしめられた状態の断
面図である。FIG. 6 is a cross-sectional view showing a state in which a reinforcing shaft is swaged on a rotating chassis.
【図７】磁気記録再生装置の回動シャーシが開いた状態
の全体斜視図である。FIG. 7 is an overall perspective view of the magnetic recording / reproducing apparatus in a state where a rotating chassis is opened.
【図８】同上の回動シャーシが閉じた状態の全体斜視図
である。FIG. 8 is an overall perspective view showing a state where the rotating chassis is closed.
(３) 補強軸 (４) 筒軸 (６) 嵌合板 (3) Reinforcing shaft (4) Cylindrical shaft (6) Fitting plate
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F16B 9/00 - 9/02 G11B 15/675 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) F16B 9/00-9/02 G11B 15/675
Claims (1)
(８)の間に補強軸(３)を取付け、補強軸(３)の両端を側
壁(７)(８)に固定する固定機構に於いて、 補強軸(３)の両端面からは、筒軸(４)が突設され、 筒軸(４)の略中央からは、回動部材の回動中心となる枢
軸(40)が突設され、 一方の側壁(８)には、筒軸(４)が嵌合可能な孔(80)が、
他方の側壁(７)には、補強軸(３)の外径よりも大きく、
かつ多角形の透孔(70)が夫々開設され、 透孔(70)には、筒軸(４)が貫通する嵌合板(６)が緊密に
嵌まり、 各筒軸(４)は孔(80)及び嵌合板(６)を貫通した状態で、
夫々かしめ固定されていることを特徴とする補強軸の固
定機構。1. Side walls at both ends of a rotating member to be reinforced
In a fixing mechanism in which a reinforcing shaft (3) is attached between (8) and both ends of the reinforcing shaft (3) are fixed to the side walls (7) and (8), a cylinder is provided from both end surfaces of the reinforcing shaft (3). A shaft (4) is protruded, and a pivot (40) serving as a center of rotation of a pivot member is protruded from substantially the center of the cylinder shaft (4). 4) The hole (80) that can be fitted
The other side wall (7) is larger than the outer diameter of the reinforcing shaft (3),
A polygonal through-hole (70) is opened, and a fitting plate (6) through which the cylinder shaft (4) penetrates fits tightly into the through-hole (70), and each cylinder shaft (4) has a hole ( 80) and the fitting plate (6),
A reinforcing shaft fixing mechanism, which is fixed by caulking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5260603A JP3030190B2 (en) | 1993-10-19 | 1993-10-19 | Retaining shaft fixing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5260603A JP3030190B2 (en) | 1993-10-19 | 1993-10-19 | Retaining shaft fixing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07113408A JPH07113408A (en) | 1995-05-02 |
| JP3030190B2 true JP3030190B2 (en) | 2000-04-10 |
Family
ID=17350236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5260603A Expired - Fee Related JP3030190B2 (en) | 1993-10-19 | 1993-10-19 | Retaining shaft fixing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3030190B2 (en) |
-
1993
- 1993-10-19 JP JP5260603A patent/JP3030190B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07113408A (en) | 1995-05-02 |
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