JPS628107Y2

JPS628107Y2 -

Info

Publication number: JPS628107Y2
Application number: JP6329778U
Authority: JP
Priority date: 1978-05-10
Filing date: 1978-05-10
Publication date: 1987-02-25
Also published as: JPS54164468U

Description

【考案の詳細な説明】本考案は、断路器に関するものである。[Detailed explanation of the idea] The present invention relates to a disconnector.

従来は、添付図面第１図に示すように、ブレー
ド１が回動する場合にブレード１の一端を支持し
て回転中心となる支点軸の軸受部２を一端に有す
るヒンジ３が絶縁支持台４上に取り付けられてお
り、ヒンジ３には、ブレード１が回動して１点鎖
線によつて示すように開極した場合に所定位置に
ブレード１を係止するための、ブレード１に固着
された突起５が当接するストツパ６と、突起５が
ストツパ６に衝突した場合の衝撃力F₁を支承す
るための、ヒンジ３の直角部に設けられた補強板
７とが取付けられている。 Conventionally, as shown in FIG. 1 of the accompanying drawings, a hinge 3, which supports one end of the blade 1 when the blade 1 rotates and has a bearing portion 2 of a fulcrum shaft serving as a center of rotation at one end, is attached to an insulating support base 4. The hinge 3 has a hinge fixed to the blade 1 for locking the blade 1 in a predetermined position when the blade 1 rotates and opens as shown by the dashed line. A stopper 6 with which the protrusion 5 abuts, and a reinforcing plate 7 provided at the right angle of the hinge 3 to bear the impact force F ₁ when the protrusion 5 collides with the stopper 6 are attached.

従来はこのように構成されているために、開極
時にはストツパ６に大きな衝撃力が加わることに
よつて、ストツパ６、ひいてはこれが取り付けら
れている補強板７に大きな衝撃曲げ応力が生じ、
また、これによつてヒンジ３にも大きな曲げ応力
が生ずるが、この状態に対応するために、ヒンジ
３、補強板７及びストツパ６を、それぞれ、強固
にする必要があつた。しかしながら、このように
構成することによつても、なお十分ではないだけ
でなく、製造費用の上からも大きな負担が負わさ
れるという欠点を有していた。 Conventionally, due to this configuration, when a large impact force is applied to the stopper 6 when the contact is opened, a large impact bending stress is generated on the stopper 6 and, by extension, on the reinforcing plate 7 to which this is attached.
Further, this also generates a large bending stress on the hinge 3, and in order to cope with this condition, it was necessary to strengthen the hinge 3, the reinforcing plate 7, and the stopper 6, respectively. However, even with this configuration, it is not only insufficient, but also has the drawback of imposing a large burden on manufacturing costs.

本考案は、このような従来の欠点を除去するた
めになされたもので、従来の欠点であるストツパ
ー部に加わる曲げ応力を利用することを廃し、荷
重を単純に圧縮応力と引張応力とに置き替えるこ
とによつて、より簡便で安価な断路器を得ること
を目的とするものである。 The present invention was made in order to eliminate these conventional drawbacks, and eliminates the use of bending stress applied to the stopper part, which was a drawback of the conventional method, and simply places the load into compressive stress and tensile stress. The purpose of this is to obtain a simpler and cheaper disconnector by replacing the breaker.

以下、本考案をその一実施例を示す添付図面に
基づいて説明する。 Hereinafter, the present invention will be explained based on the accompanying drawings showing one embodiment thereof.

第２図において、ストツパ１０は、ブレード１
１が回動して１点鎖線によつて示される開極位置
にきた際に、ブレード１１のストツパ１０への当
接部、例えば、ブレード１１の端面の一側１２が
当たるストツパ当接部１３が中間に設けられると
共に、ストツパ先端１４はヒンジ１５に設けられ
るストツパ係止部、例えば、折曲げ部１６に対向
して当たるように形成され、ヒンジ１５を介し
て、絶縁支持台１７に取り付けられている。 In FIG. 2, the stopper 10 is connected to the blade 1.
1 rotates and comes to the open position shown by the dashed dotted line, the contact portion of the blade 11 against the stopper 10, for example, the stopper contact portion 13 against which one side 12 of the end face of the blade 11 comes into contact. is provided in the middle, and the stopper tip 14 is formed to face and abut against a stopper locking part provided on the hinge 15, for example, a bent part 16, and is attached to the insulating support base 17 via the hinge 15. ing.

なお、この際のストツパ１０の形状、並びに、
ストツパ１０及びブレード１１に対するヒンジ１
５の折曲げ部１６の関係位置は、ブレード１１が
開極してストツパ１０に当接した際に生ずる衝撃
力に基づく、ヒンジ１５の軸受部１８をヒンジと
直角方向に曲げようとする反力F₃を、ヒンジの
折曲げ部１６におけるストツパ先端１４方向の分
力F₂により引張方向になるようにされている。 In addition, the shape of the stopper 10 at this time, and
Hinge 1 for stopper 10 and blade 11
The relative position of the bent portion 16 of No. 5 is determined by the reaction force that attempts to bend the bearing portion 18 of the hinge 15 in a direction perpendicular to the hinge, based on the impact force generated when the blade 11 opens and contacts the stopper 10. F ₃ is made to be in the tensile direction by a component force F ₂ in the direction of the stopper tip 14 at the bent portion 16 of the hinge.

本考案はこのように構成されるが、次にその作
用及び効果について説明する。 The present invention is constructed as described above, and its operation and effects will be explained next.

ブレード１１が開極して１点鎖線の位置にきた
場合においては、ブレード１１のブレード当接部
１２がストツパ１０のストツパ当接部１３に当た
つてブレード１１は係止される。この場合ストツ
パ１０の受ける衝撃力は、ストツパ先端１４方向
の分力F₂と、ヒンジ１５の先端の軸受部１８を
曲げようとする反力F₃とを生ずるが、ストツパ
１０の形状、並びに、ブレード１１及びストツパ
１０のヒンジ１５に対する関係位置から、分力
F₂が反力F₃よりも大きくなるようにされている
ために、衝撃力の多くを絶縁支持台１７に近接し
たヒンジ１５の折曲げ部すなわちストツパ係止部
１６において受け、且つ、ヒンジ先端の軸受部１
８を曲げようとする反力F₃を引張応力に置きか
えているために、ヒンジ１５の構造を余り強固に
する必要はなく、しかもこのような構造によつ
て、完全にブレードの係止の機能を果すだけでな
く、構成部品点数の減少と相まつて製造費用を大
幅に縮減することができ、更に、標準品との部品
の共用化が可能となつて、安価な断路器を供給す
ることができる等多くの効果を有している。 When the blade 11 is opened and reaches the position indicated by the dashed dotted line, the blade abutting portion 12 of the blade 11 abuts the stopper abutting portion 13 of the stopper 10, and the blade 11 is locked. In this case, the impact force received by the stopper 10 produces a component force F ₂ in the direction of the stopper tip 14 and a reaction force F ₃ that tends to bend the bearing portion 18 at the tip of the hinge 15. From the relative positions of the blade 11 and stopper 10 with respect to the hinge 15, the component force
Since F ₂ is made larger than the reaction force F ₃ , most of the impact force is received at the bent portion of the hinge 15 close to the insulating support 17 , that is, the stopper locking portion 16 , and at the tip of the hinge. bearing part 1
Since the reaction force F ₃ that tries to bend the blade 8 is replaced with a tensile stress, there is no need to make the structure of the hinge 15 very strong, and this structure completely prevents the blade from locking. In addition to achieving this, manufacturing costs can be significantly reduced due to the reduction in the number of component parts.Furthermore, parts can be shared with standard products, making it possible to supply inexpensive disconnectors. It has many effects such as:

[Brief explanation of the drawing]

第１図は従来の断路器の側面図、第２図は本考
案の一実施例の断路器の側面図、第３図はそのス
トツパの一実施例の側面図、第４図はその正面図
である。１０……ストツパ、１１……ブレード、１２…
…ブレード当接部、１３……ストツパ当接部、１
４……ストツパ１０の先端、１５……ヒンジ、１
６……ストツパ係止部（折曲げ部）、１７……絶
縁支持台、１８……軸受部、F₁……ブレードの
ストツパへの当接によつて生ずる衝撃力、F₂，
F₃……衝撃力に基づく分力又は反力。 Figure 1 is a side view of a conventional disconnector, Figure 2 is a side view of a disconnector according to an embodiment of the present invention, Figure 3 is a side view of an embodiment of the stopper, and Figure 4 is a front view thereof. It is. 10...stopper, 11...blade, 12...
...Blade contact part, 13...Stopper contact part, 1
4... Tip of stopper 10, 15... Hinge, 1
6...Stopper locking part (bending part), 17...Insulating support base, 18...Bearing part, _F1 ...Impact force generated by contact of the blade with the stopper, _F2 ,
F ₃ ...Component force or reaction force based on impact force.

Claims

[Scope of utility model registration request]

A stopper, which the open blade contacts and stops, is mounted on an insulated support base, and the contact surface of the stopper contact part, which the contact part of the blade contacts, is a hinge bearing that supports the center of rotation of the blade. The hinge has a bearing part at one end thereof, and a stopper locking part is provided on or near the insulating support base, and the stopper has a stopper that is perpendicular to the rib supporting the hinge. It has a contact part in the middle part, and the tip is locked in the stopper locking part of the hinge, and the base is attached via the hinge, and most of the impact force due to the contact of the blade is transferred to the base of the stopper and the stopper locking part. and have them receive it.
A disconnector characterized in that the reaction force applied to the bearing part of the hinge is made to be in the tensile direction by the component force applied to the stopper.