JP3438019B2 - Rotating member braking mechanism - Google Patents
Rotating member braking mechanismInfo
- Publication number
- JP3438019B2 JP3438019B2 JP33497998A JP33497998A JP3438019B2 JP 3438019 B2 JP3438019 B2 JP 3438019B2 JP 33497998 A JP33497998 A JP 33497998A JP 33497998 A JP33497998 A JP 33497998A JP 3438019 B2 JP3438019 B2 JP 3438019B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating member
- arm
- protrusion
- braking mechanism
- rotation
- 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
- Pivots And Pivotal Connections (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明はアーム等の回動部
材の回動支持機構に係わり、特に、その制動機構に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary support mechanism for a rotary member such as an arm, and more particularly to a braking mechanism therefor.
【０００２】[0002]
【従来の技術】従来のアームの制動機構の例を図３〜図
５に示す。図におけるアーム１は固定部材３、４、５に
より回動自在に支持される。アーム１の左右側面には左
右の固定部材４、３に夫々設けられた軸受け穴３ａ、４
ａと嵌合する軸１ａ、１ａが設けられている。2. Description of the Related Art An example of a conventional arm braking mechanism is shown in FIGS. The arm 1 in the figure is rotatably supported by fixing members 3, 4, and 5. On the left and right side surfaces of the arm 1, there are bearing holes 3a and 4a provided in the left and right fixing members 4 and 3, respectively.
Shafts 1a and 1a that fit with a are provided.
【０００３】軸１ａ、１ａが軸受け穴３ａ、４ａと嵌合
することによりアーム１が回動自在に支持される。アー
ム１には先端部に突起１ｃが設けられており、図５に示
すように突起１ｃが固定部材５のアール部に摺接しその
摩擦抵抗によりアーム１の回動が制御される。The arm 1 is rotatably supported by fitting the shafts 1a and 1a into the bearing holes 3a and 4a. The arm 1 is provided with a protrusion 1c at its tip. As shown in FIG. 5, the protrusion 1c is slidably contacted with the rounded portion of the fixing member 5, and the rotation of the arm 1 is controlled by the frictional resistance thereof.
【０００４】[0004]
【発明が解決しようとする課題】上記した従来のアーム
の制動機構では、突起１ｃと固定部材５との接触の状態
を一定に保つためには軸１ａ、１ａの支持位置を正確に
位置決めしてぶれないようにする必要があり、固定部材
４、３によりアーム１を両側から支持する必要がある。
そのため、構造が複雑で製造コストが高くなるという問
題があった。In the above-described conventional arm braking mechanism, in order to keep the contact state between the protrusion 1c and the fixing member 5 constant, the supporting positions of the shafts 1a, 1a are accurately positioned. It is necessary to prevent it from shaking, and it is necessary to support the arm 1 from both sides by the fixing members 4 and 3.
Therefore, there is a problem that the structure is complicated and the manufacturing cost becomes high.
【０００５】この発明は上記した点に鑑みてなされたも
のであって、その目的とするところは、簡単な構造で回
動を安定した状態に制御できる回動部材の制動機構を提
供することにある。The present invention has been made in view of the above points, and it is an object of the present invention to provide a braking mechanism for a rotating member that can control the rotation in a stable state with a simple structure. is there.
【０００６】[0006]
【課題を解決するための手段】この発明の回動部材の制
動機構は、回動部材と、前記回動部材を挟むように配置
され前記回動部材を軸支する固定部材と、を備え、前記
回動部材と前記固定部材のいずれかまたは双方に、前記
回動部材が所定位置に回動されたときに前記回動部材を
付勢する第１の突起を回動部材の回動軸と直交する側面
に設け、前記回動部材と前記固定部材のいずれかまたは
双方に、前記第１の突起の付勢により前記回動部材と前
記固定部材との間に摩擦抵抗を生じさせる第２の突起を
回動部材の回動軸と直交する側面に設け、前記回動部材
が前記所定位置に回動されたときに前記摩擦抵抗よっ
て、前記回動部材の回動を制動するように構成したもの
である。A braking mechanism for a rotating member according to the present invention comprises a rotating member and a fixing member which is arranged so as to sandwich the rotating member and pivotally supports the rotating member. One or both of the rotating member and the fixed member are provided with a first protrusion for urging the rotating member when the rotating member is rotated to a predetermined position, and the first protrusion is a rotating shaft of the rotating member. Orthogonal sides
And a second protrusion for providing frictional resistance between the rotating member and the fixed member due to the urging of the first protrusion on either or both of the rotating member and the fixed member.
The rotation member is provided on a side surface orthogonal to the rotation axis, and is configured to brake the rotation of the rotation member by the frictional resistance when the rotation member is rotated to the predetermined position. is there.
【０００７】また、前記回動部材の制動機構において、
前記突起に前記回動部材を案内する傾斜面を設けたもの
である。In the braking mechanism for the rotating member,
The protrusion is provided with an inclined surface for guiding the rotating member.
【０００８】[0008]
【発明の実施の形態】この発明の実施例であるアームの
制動機構を図面に基づいて説明する。図１（ａ）はこの
発明の実施例であるアームの制動機構を示す正面図、図
１（ｂ）は図１（ａ）におけるＡ−Ａ断面図である。ま
た、図２（ａ）は同アームの制動機構の他の状態を示す
正面図、図２（ｂ）は図２（ａ）におけるＢ−Ｂ断面図
である。図におけるアーム１は固定部材２により回動自
在に支持される。アーム１の左側面には固定部材２に設
けられた軸受け穴２ａと嵌合する軸１ａが設けられてい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An arm braking mechanism that is an embodiment of the present invention will be described with reference to the drawings. 1A is a front view showing an arm braking mechanism according to an embodiment of the present invention, and FIG. 1B is a sectional view taken along the line AA in FIG. 1A. 2A is a front view showing another state of the braking mechanism of the same arm, and FIG. 2B is a sectional view taken along line BB in FIG. 2A. The arm 1 in the figure is rotatably supported by a fixing member 2. The left side surface of the arm 1 is provided with a shaft 1a that fits into a bearing hole 2a provided in the fixing member 2.
【０００９】軸１ａが軸受け穴２ａと嵌合することによ
りアーム１が回動自在に支持される。アーム１には右側
面に突起１ｂが設けられており、固定部材２にはアーム
１の回動路に向けて突出する突起２ｂが設けられてい
る。突起１ｂおよび突起２ｂの周囲は傾斜面となってい
る。The arm 1 is rotatably supported by fitting the shaft 1a into the bearing hole 2a. The arm 1 is provided with a protrusion 1b on the right side surface thereof, and the fixed member 2 is provided with a protrusion 2b protruding toward the rotation path of the arm 1. The periphery of the protrusion 1b and the protrusion 2b is an inclined surface.
【００１０】アーム１が図１に示す状態から回動される
と、図２（ａ）に示すようにアーム１は固定部材２の突
起２ｂと当接して押され、アーム１の突起１ｂが固定部
材２に当接するようになる。アーム１は突起２ｂおよび
突起１ｂの摩擦抵抗により制動される。When the arm 1 is rotated from the state shown in FIG. 1, as shown in FIG. 2A, the arm 1 abuts against the protrusion 2b of the fixing member 2 and is pushed, and the protrusion 1b of the arm 1 is fixed. It comes into contact with the member 2. The arm 1 is braked by the frictional resistance of the protrusion 2b and the protrusion 1b.
【００１１】このようにアーム１は固定部材２に挟まれ
るようにして制動されるので、固定部材２を回動自在に
支持するための軸１ａおよび軸受け穴２ａの嵌合の精度
を高くする必要がなく、また、回動自在に支持する部分
によりアーム１の軸方向位置決めの精度を高める必要が
ない。従って製造コストを安くすることができる。Since the arm 1 is thus braked by being sandwiched between the fixing members 2, it is necessary to increase the accuracy of fitting the shaft 1a and the bearing hole 2a for rotatably supporting the fixing member 2. In addition, there is no need to increase the accuracy of axial positioning of the arm 1 due to the rotatably supporting portion. Therefore, the manufacturing cost can be reduced.
【００１２】実施例は以上のように構成されているが発
明はこれに限られず、例えば、摩擦抵抗を生じさせる突
起はアーム１の両側面に設けてもよく、また、固定部材
の両側面に設けてもよい。Although the embodiment is configured as described above, the invention is not limited to this. For example, the projections that generate frictional resistance may be provided on both side surfaces of the arm 1, or on both side surfaces of the fixing member. It may be provided.
【００１３】[0013]
【発明の効果】この発明の回動部材の制動機構によれ
ば、軸受け部分の嵌合精度を高くする必要がないため製
造コストが安くなる。According to the braking mechanism of the rotating member of the present invention, since it is not necessary to increase the fitting accuracy of the bearing portion, the manufacturing cost is reduced.
【図１】図１（ａ）はこの発明の実施例であるアームの
制動機構を示す正面図、図１（ｂ）は図１（ａ）におけ
るＡ−Ａ断面図である。1 (a) is a front view showing a braking mechanism for an arm according to an embodiment of the present invention, and FIG. 1 (b) is a sectional view taken along line AA in FIG. 1 (a).
【図２】図２（ａ）は同アームの制動機構の他の状態を
示す正面図、図２（ｂ）は図２（ａ）におけるＢ−Ｂ断
面図である。2 (a) is a front view showing another state of the braking mechanism of the arm, and FIG. 2 (b) is a sectional view taken along line BB in FIG. 2 (a).
【図３】従来のアームの制動機構を構成する部材を示す
斜視図である。FIG. 3 is a perspective view showing members constituting a conventional arm braking mechanism.
【図４】同アームの制動機構の他の部材を示す斜視図で
ある。FIG. 4 is a perspective view showing another member of the braking mechanism of the arm.
【図５】同アームの制動機構を示す断面図である。FIG. 5 is a sectional view showing a braking mechanism of the arm.
１ アーム、１ａ 軸、１ｂ 突起、１ｃ 突起 ２ 固定部材、２ａ 軸受け穴、２ｂ 突起 ３ 固定部材、３ａ 軸受け穴 ４ 固定部材、４ａ 軸受け穴 ５ 固定部材 1 arm, 1a axis, 1b protrusion, 1c protrusion 2 fixing member, 2a bearing hole, 2b protrusion 3 fixing member, 3a bearing hole 4 fixing member, 4a bearing hole 5 fixing members
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F16C 11/10 ─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) F16C 11/10
Claims (2)
する固定部材と、を備え、 前記回動部材と前記固定部材のいずれかまたは双方に、
前記回動部材が所定位置に回動されたときに前記回動部
材を付勢する第１の突起を回動部材の回動軸と直交する
側面に設け、 前記回動部材と前記固定部材のいずれかまたは双方に、
前記第１の突起の付勢により前記回動部材と前記固定部
材との間に摩擦抵抗を生じさせる第２の突起を回動部材
の回動軸と直交する側面に設け、 前記回動部材が前記所定位置に回動されたときに前記摩
擦抵抗よって、前記回動部材の回動を制動するように構
成したことを特徴とする回動部材の制動機構。1. A rotating member, and a fixing member that is arranged so as to sandwich the rotating member and pivotally supports the rotating member, and one or both of the rotating member and the fixing member,
The first protrusion that biases the rotating member when the rotating member is rotated to a predetermined position is orthogonal to the rotation axis of the rotating member.
Provided on a side surface, on either or both of the rotating member and the fixing member,
The second protrusion that causes frictional resistance between the rotating member and the fixed member by the biasing of the first protrusion is the rotating member.
Is provided on a side surface orthogonal to the rotation axis, and the rotation of the rotation member is braked by the frictional resistance when the rotation member is rotated to the predetermined position. Braking mechanism for rotating members.
面を設けたことを特徴とする請求項１の回動部材の制動
機構。2. The braking mechanism for a rotating member according to claim 1, wherein the protrusion is provided with an inclined surface for guiding the rotating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33497998A JP3438019B2 (en) | 1998-11-10 | 1998-11-10 | Rotating member braking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33497998A JP3438019B2 (en) | 1998-11-10 | 1998-11-10 | Rotating member braking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000145756A JP2000145756A (en) | 2000-05-26 |
| JP3438019B2 true JP3438019B2 (en) | 2003-08-18 |
Family
ID=18283376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33497998A Expired - Fee Related JP3438019B2 (en) | 1998-11-10 | 1998-11-10 | Rotating member braking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3438019B2 (en) |
-
1998
- 1998-11-10 JP JP33497998A patent/JP3438019B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000145756A (en) | 2000-05-26 |
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