JP6865123B2

JP6865123B2 - Insulated duct for warm air type snow melting device and warm air type snow melting device

Info

Publication number: JP6865123B2
Application number: JP2017130782A
Authority: JP
Inventors: 五十嵐　秀夫; 秀夫五十嵐; 清文渡邉; 忠則渡邉; 佐藤　昭良; 昭良佐藤
Original assignee: East Japan Railway Co
Current assignee: East Japan Railway Co
Priority date: 2017-07-04
Filing date: 2017-07-04
Publication date: 2021-04-28
Anticipated expiration: 2037-07-04
Also published as: JP2019015036A

Description

本発明は、鉄道軌道に敷設される温風式融雪装置用絶縁ダクト及び温風式融雪装置に関し、特に鉄道線路の分岐器におけるレール間に敷設される温風式融雪装置及びそれを構成する温風式融雪装置用絶縁ダクトに関する。 The present invention relates to an insulating duct for a hot air type snowmelting device laid on a railroad track and a hot air type snowmelting device, and particularly a warm air type snowmelting device laid between rails in a turnout of a railway line and a temperature constituting the same. Regarding insulating ducts for wind-type snow melting equipment.

鉄道線路の分岐器はポイント部、リード部、クロッシング部及びガイドレール等によって構成されており、ポイント後端からクロッシング部に向けて左右のレールの間隔が徐々に狭くなる（以下、分岐器において左右のレールの間隔が徐々に狭くなりクロッシング部までの領域をデルタエリアという）。そして、例えば鉄道車両に取り付けたスノープラウで雪が押されてくる等してデルタエリアに雪が溜まると、ポイントが動かなくなってポイント不転換が生じてしまう場合がある。 A railroad track turnout is composed of a point part, a lead part, a crossing part, a guide rail, etc., and the distance between the left and right rails gradually narrows from the rear end of the point toward the crossing part (hereinafter, left and right in the turnout). The area up to the crossing part is called the delta area) as the distance between the rails gradually narrows. Then, when snow accumulates in the delta area, for example, when snow is pushed by a snow plow attached to a railroad vehicle, the points may not move and points may not be converted.

すなわち、図１０に示す分岐器に、スノープラウを取り付けた鉄道車両（不図示）が図中左側から進入すると、スノープラウで押された雪がデルタエリアＡに溜まる。また、スノープラウを取り付けた鉄道車両（不図示）が図中右側から進入すると、スノープラウで押された雪がデルタエリアＢに溜まる。なお、以下では、図１０に示したような分岐器に鉄道車両が図中左側から進入する場合（スノープラウで押された雪がデルタエリアＡに溜まる場合）を想定して説明するが、鉄道車両が図中右側から進入する場合（この場合は後述する温風式融雪装置用ダクト１０１はデルタエリアＢの図中右側に敷設される。）も同様に説明される。 That is, when a railroad vehicle (not shown) with a snow plow attached to the turnout shown in FIG. 10 enters from the left side in the figure, the snow pushed by the snow plow collects in the delta area A. When a railroad vehicle (not shown) with a snow plow attached enters from the right side of the figure, the snow pushed by the snow plow collects in the delta area B. In the following, the description will be made on the assumption that a railroad vehicle enters the turnout as shown in FIG. 10 from the left side in the figure (when the snow pushed by the snowplow collects in the delta area A). Is also described in the same manner when the vehicle enters from the right side in the drawing (in this case, the duct 101 for the warm air type snow melting device described later is laid on the right side in the drawing of the delta area B).

そして、このようなデルタエリアＡに雪が溜まることを防止するため、分岐器のレール間に温風式融雪装置が敷設される場合がある（分岐器に敷設されたものではないが特許文献１参照）。図１０に示すように、温風式融雪装置には温風式融雪装置用ダクト１０１が設けられる。そして、軌道外に設けられた温風発生装置２０で発生された温風を、地下の送風ダクト２１を通して温風分配部１０に供給し、温風分配部１０で温風を前後方向に分配して温風式融雪装置用ダクト１０１に供給する。そして、温風式融雪装置用ダクト１０１で温風をレール５０に沿って前後方向に導くとともに、その側面に設けられた複数の孔１０２からそれぞれ各レール５０（基本レールやトングレール等を含む。）に向けて吹き出してレール間に溜まった雪を融かすように構成される。なお、温風式融雪装置用ダクトが各レールの外側にも敷設される場合もある。 Then, in order to prevent snow from accumulating in such a delta area A, a warm air type snow melting device may be laid between the rails of the turnout (see Patent Document 1 although it is not laid on the turnout). ). As shown in FIG. 10, the warm air type snowmelting device is provided with a duct 101 for the warm air type snowmelting device. Then, the warm air generated by the hot air generator 20 provided outside the track is supplied to the hot air distribution unit 10 through the underground air duct 21, and the warm air is distributed in the front-rear direction by the hot air distribution unit 10. It is supplied to the duct 101 for a warm air type snow melting device. Then, the hot air type snow melting device duct 101 guides the warm air in the front-rear direction along the rail 50, and each rail 50 (including a basic rail, a tongue rail, etc.) is provided through a plurality of holes 102 provided on the side surface thereof. ) Is blown out to melt the snow that has accumulated between the rails. A duct for a warm air type snow melting device may also be laid on the outside of each rail.

特開２００４−２５７１３４号公報Japanese Unexamined Patent Publication No. 2004-257134

従来、温風式融雪装置用ダクト１０１は、安価で容易に加工可能な鋼等の金属製の角パイプで形成されることが多かった。そして、デルタエリアＡの多くの部分の雪を融かすために温風式融雪装置用ダクト１０１をクロッシング部Ｃ（図１０参照）に近い部分まで延ばすように構成すると、温風式融雪装置用ダクト１０１と各レール５０との距離が近くなるが、上記のように従来の温風式融雪装置用ダクト１０１は導電性であるため、温風式融雪装置用ダクト１０１を介してレール５０同士が短絡するおそれがある。そのため、温風式融雪装置用ダクト１０１をあまり延ばすことができず、その分、融雪面積を広げることが困難であった。 Conventionally, the duct 101 for a hot air type snow melting device is often formed of a metal square pipe such as steel that is inexpensive and easily processed. Then, in order to melt the snow in many parts of the delta area A, the duct 101 for the warm air type snow melting device is configured to extend to a part close to the crossing portion C (see FIG. 10). Although the distance between the 101 and each rail 50 becomes shorter, as described above, since the conventional duct 101 for the hot air type snowmelter is conductive, the rails 50 are short-circuited with each other via the duct 101 for the warm air type snowmelter. There is a risk of Therefore, the duct 101 for the warm air type snow melting device could not be extended so much, and it was difficult to expand the snow melting area by that amount.

本発明は、上記の問題点を鑑みてなされたものであり、鉄道線路の分岐器のデルタエリアにおける融雪面積をより広くすることが可能な温風式融雪装置用絶縁ダクト及び温風式融雪装置を提供することを目的とするものである。 The present invention has been made in view of the above problems, and is an insulating duct for a warm air type snowmelting device and a warm air type snowmelting device capable of increasing the snowmelt area in the delta area of a railroad track turnout. Is intended to provide.

上記課題を達成するため、本出願の第１の発明は、
鉄道線路の分岐器におけるレール間に敷設され、内部に供給された温風を、側面に設けられた複数の孔からそれぞれ各レールに向けて吹き出すための温風式融雪装置用絶縁ダクトにおいて、
絶縁性材料で構成された断面コ字状の２つのカバー部材を有し、
一方の前記カバー部材を他方の前記カバー部材に向い合せて挿入することでダクトを形成するとともに、
前記ダクトの側面には、温風を吹き出すための前記複数の孔が形成されており、
前記他方のカバー部材に対する前記一方のカバー部材の挿入量を前記ダクトの長手方向で変えることで、前記ダクトの短手方向の幅が、前記ダクトの長手方向に沿って可変とされるようにしたものである。
上記温風式融雪装置用絶縁ダクトによれば、鉄道線路の分岐器のデルタエリアにおける融雪面積をより広くすることができる。 In order to achieve the above object, the first invention of the present application is
In an insulating duct for a warm air type snow melting device that is laid between rails in a railroad turnout and blows out the warm air supplied inside from a plurality of holes provided on the side toward each rail.
It has two cover members with a U-shaped cross section made of an insulating material.
A duct is formed by inserting one of the cover members so as to face the other cover member, and at the same time, the duct is formed.
The plurality of holes for blowing warm air are formed on the side surface of the duct.
By changing the insertion amount of the one cover member into the other cover member in the longitudinal direction of the duct, the width of the duct in the lateral direction is made variable along the longitudinal direction of the duct. It is a thing.
According to the above-mentioned insulating duct for the hot air type snow melting device, the snow melting area in the delta area of the turnout of the railway line can be made wider.

また、望ましくは、前記他方のカバー部材内に挿入される前記一方のカバー部材の内部の、該一方のカバー部材の上壁と下壁との間に、補強板が立設されており、
前記補強板には、前記一方のカバー部材の内部を通る温風と前記他方のカバー部材の内部を通る温風とを流通させるための複数の開口部が設けられる。
これにより、温風式融雪装置用絶縁ダクトに上方から力が加わっても温風式融雪装置用絶縁ダクトが押し潰されることを防止することができる。 Further, preferably, a reinforcing plate is erected between the upper wall and the lower wall of the one cover member inside the one cover member inserted into the other cover member.
The reinforcing plate is provided with a plurality of openings for circulating warm air passing through the inside of the one cover member and warm air passing through the inside of the other cover member.
As a result, it is possible to prevent the insulating duct for the warm air type snowmelting device from being crushed even if a force is applied to the insulating duct for the warm air type snowmelting device from above.

さらに、望ましくは、前記２つのカバー部材は、それぞれ繊維強化プラスチックで形成される。
これにより、カバー部材が強度や耐久性等に優れたものとなるとともに、カバー部材を繊維強化プラスチックで容易に形成することができる。 Further, preferably, the two cover members are each made of fiber reinforced plastic.
As a result, the cover member has excellent strength, durability, and the like, and the cover member can be easily formed of fiber reinforced plastic.

本出願の第２の発明は、
上記の温風式融雪装置用絶縁ダクトと、
前記温風式融雪装置用絶縁ダクトに温風を供給する温風発生装置と、
を備え、
さらに、取付板を有し、前記取付板の一端側がレール又は枕木に固定され、前記取付板の他端側が、前記温風式融雪装置用絶縁ダクトの側面に形成されたスリットに挿入されることで、前記温風式融雪装置用絶縁ダクトの浮き上がりを防止する浮き上がり防止用金具を備えるように構成したものである。
これにより、鉄道車両が分岐器を通過する際に振動が生じる等しても浮き上がり防止用金具により温風式融雪装置用絶縁ダクトが浮き上がることを防止することができる。 The second invention of the present application is
Insulation duct for the above hot air type snow melting device,
A hot air generator that supplies hot air to the insulation duct for the hot air type snowmelting device,
With
Further, it has a mounting plate, one end side of the mounting plate is fixed to a rail or sleepers, and the other end side of the mounting plate is inserted into a slit formed on the side surface of the insulating duct for the warm air type snow melting device. Therefore, it is configured to be provided with a lifting prevention metal fitting for preventing the floating of the insulating duct for the warm air type snow melting device.
As a result, even if vibration occurs when the railroad vehicle passes through the turnout, it is possible to prevent the insulating duct for the warm air type snow melting device from being lifted by the lifting prevention metal fittings.

また、望ましくは、さらに、枕木に固定され、前記温風式融雪装置用絶縁ダクトの側面部に係合して、前記温風式融雪装置用絶縁ダクトがその短手方向に移動することを防止するための短手方向位置ずれ防止金具を備える。
これにより、鉄道車両が分岐器を通過する際に振動が生じる等しても短手方向位置ずれ防止金具により温風式融雪装置用絶縁ダクトに短手方向の位置ずれが生じることを防止することができる。 Further, preferably, it is further fixed to the sleeper and engages with the side surface portion of the insulating duct for the warm air type snow melting device to prevent the insulating duct for the warm air type snow melting device from moving in the lateral direction thereof. It is equipped with a metal fitting to prevent misalignment in the lateral direction.
As a result, even if vibration occurs when the railroad vehicle passes through the turnout, the short-side misalignment prevention metal fittings prevent the short-side misalignment of the insulation duct for the warm air type snowmelt device. Can be done.

さらに、望ましくは、さらに、枕木に固定され、前記温風式融雪装置用絶縁ダクトの長手方向の末端部に当接して、前記温風式融雪装置用絶縁ダクトがその長手方向に移動することを防止するための長手方向位置ずれ防止金具を備える。
これにより、鉄道車両が分岐器を通過する際に振動が生じる等しても長手方向位置ずれ防止金具により温風式融雪装置用絶縁ダクトに長手方向の位置ずれが生じることを防止することができる。 Further, more preferably, the insulating duct for the warm air type snowmelting device is fixed to the sleeper and abuts on the end portion in the longitudinal direction of the insulating duct for the warm air type snowmelting device so that the insulating duct for the warm air type snowmelting device moves in the longitudinal direction thereof. A metal fitting for preventing displacement in the longitudinal direction is provided for prevention.
As a result, even if vibration occurs when the railroad vehicle passes through the turnout, it is possible to prevent the insulation duct for the warm air type snowmelting device from being displaced in the longitudinal direction by the longitudinal displacement prevention metal fittings. ..

本発明によれば、鉄道軌道に敷設される温風式融雪装置及びそれに用いられる温風式融雪装置用絶縁ダクトにおいて、鉄道線路の分岐器のデルタエリアにおける融雪面積をより広くすることができるという効果がある。 According to the present invention, in the hot air type snowmelting device laid on the railroad track and the insulating duct for the warm air type snowmelting device used therein, the snowmelt area in the delta area of the turnout of the railroad track can be made wider. effective.

本実施形態に係る温風式融雪装置用絶縁ダクトの構成を表す図であり、（Ａ）は平面図、（Ｂ）は正面図、（Ｃ）は（Ａ）におけるＸ−Ｘ線に沿う断面図である。It is a figure which shows the structure of the insulation duct for the hot air type snowmelting apparatus which concerns on this embodiment, (A) is a plan view, (B) is a front view, (C) is a cross section along XX line in (A). It is a figure. （Ａ）は本実施形態に係る温風式融雪装置用絶縁ダクトを分岐器に配置した状態を表し、（Ｂ）は従来の温風式融雪装置用ダクトを分岐器に配置した状態を表す図である。(A) represents a state in which the insulating duct for the hot air type snowmelting device according to the present embodiment is arranged in the turnout, and (B) shows a state in which the conventional duct for the hot air type snowmelting device is arranged in the turnout. Is. カバー部材をガラス繊維強化プラスチックで形成した本実施形態に係る温風式融雪装置用絶縁ダクトの場合（α）と鋼で形成した従来の温風式融雪装置用ダクトの場合（β）のダクトの末端部の表面温度の時間経過を表すグラフである。Of the ducts of the case of the insulation duct for the warm air type snowmelt device according to the present embodiment (α) in which the cover member is made of glass fiber reinforced plastic and the case of the conventional duct for the hot air type snowmelt device (β) made of steel. It is a graph which shows the time passage of the surface temperature of a terminal part. （Ａ）、（Ｂ）温風式融雪装置用絶縁ダクトの末端部を覆う蓋の構成例を表す図である。It is a figure which shows the structural example of the lid which covers the end part of the insulation duct for the warm air type snow melting apparatus (A), (B). 一方のカバー部材内に立設された補強板に設けられた開口部を説明する図である。It is a figure explaining the opening provided in the reinforcing plate erected in one cover member. 本実施形態に係る浮き上がり防止用金具の構成を表す図である。It is a figure which shows the structure of the metal fitting for prevention of lifting which concerns on this embodiment. 浮き上がり防止用金具のスリットＳを温風式融雪装置用絶縁ダクトの左右の側面のダクトの長手方向の（Ａ）同じ位置、（Ｂ）互いに異なる位置にそれぞれ設けた場合を表す図である。It is a figure which shows the case where the slit S of the metal fitting for prevention of lifting is provided at the same position (A) in the longitudinal direction of the duct on the left and right side surfaces of the insulating duct for a warm air type snow melting device, and (B) at different positions. 本実施形態に係る短手方向位置ずれ防止金具の構成を表す図である。It is a figure which shows the structure of the lateral position deviation prevention metal fitting which concerns on this embodiment. 本実施形態に係る長手方向位置ずれ防止金具の構成を表す図である。It is a figure which shows the structure of the longitudinal position displacement prevention metal fitting which concerns on this embodiment. 温風式融雪装置及び従来の温風式融雪装置用ダクトを表す図である。It is a figure which shows the duct for the hot air type snowmelting apparatus and the conventional hot air type snowmelting apparatus.

以下、本発明に係る温風式融雪装置用絶縁ダクト及び温風式融雪装置の実施の形態について、詳細に説明する。 Hereinafter, embodiments of the insulating duct for the warm air type snowmelting device and the embodiment of the warm air type snowmelting device according to the present invention will be described in detail.

［温風式融雪装置］
本実施形態においても、図１０に示したように、温風式融雪装置は、鉄道線路の分岐器におけるレール間に敷設される温風式融雪装置用絶縁ダクトと、温風式融雪装置用絶縁ダクトに温風を供給する温風発生装置２０とを備えて構成されている。そして、温風式融雪装置用絶縁ダクトは、地下の送風ダクト２１や温風分配部１０を介して内部に供給された温風を、側面に設けられた複数の孔からそれぞれ各レール５０に向けて吹き出して、温風式融雪装置用絶縁ダクトとレール５０との間に溜まった雪を融かすようになっている。 [Warm air type snow melting device]
Also in the present embodiment, as shown in FIG. 10, the warm air type snow melting device includes the insulation duct for the hot air type snow melting device laid between the rails in the turnout of the railroad track and the insulation for the warm air type snow melting device. It is configured to include a hot air generator 20 that supplies hot air to the duct. Then, the insulating duct for the hot air type snow melting device directs the hot air supplied to the inside through the underground air blowing duct 21 and the hot air distribution unit 10 toward each rail 50 from a plurality of holes provided on the side surface. The snow is blown out to melt the snow accumulated between the insulation duct for the warm air type snow melting device and the rail 50.

［温風式融雪装置用絶縁ダクト］
図１（Ａ）〜（Ｃ）は本実施形態に係る温風式融雪装置用絶縁ダクトの構成を表す図であり、図１（Ａ）は平面図、図１（Ｂ）は正面図、図１（Ｃ）は図１（Ａ）におけるＸ−Ｘ線に沿う断面図である。本実施形態では、温風式融雪装置用絶縁ダクト１は、絶縁性材料で構成された断面コ字状の２つのカバー部材２Ａ、２Ｂを有しており、一方のカバー部材２Ａを他方のカバー部材２Ｂに向い合せて挿入することによりダクトが形成されている。そして、他方のカバー部材２Ｂに対する一方のカバー部材２Ａの挿入量Ｌ（図１（Ｃ）参照）をダクトの長手方向で変えることで、ダクトの短手方向の幅Ｗが、図１（Ａ）に示すようにダクトの長手方向に沿って可変とされている。すなわち、他方のカバー部材２Ｂへの一方のカバー部材２Ａの挿入量Ｌをダクトの長手方向の各位置で変えることで、ダクトの短手方向の幅Ｗをダクトの長手方向の各位置で変えることができるようになっている。 [Insulated duct for warm air type snow melting device]
1 (A) to 1 (C) are views showing the configuration of an insulating duct for a warm air type snow melting device according to the present embodiment, FIG. 1 (A) is a plan view, and FIG. 1 (B) is a front view and a view. 1 (C) is a cross-sectional view taken along line XX in FIG. 1 (A). In the present embodiment, the insulating duct 1 for a warm air type snow melting device has two cover members 2A and 2B having a U-shaped cross section made of an insulating material, and one cover member 2A is used as a cover for the other. A duct is formed by inserting the member 2B so as to face the member 2B. Then, by changing the insertion amount L (see FIG. 1 (C)) of one cover member 2A with respect to the other cover member 2B in the longitudinal direction of the duct, the width W in the lateral direction of the duct is increased in FIG. 1 (A). As shown in, it is variable along the longitudinal direction of the duct. That is, by changing the insertion amount L of one cover member 2A into the other cover member 2B at each position in the longitudinal direction of the duct, the width W in the lateral direction of the duct is changed at each position in the longitudinal direction of the duct. Can be done.

すなわち、例えば図１（Ａ）で温風分配部１０より右側に示すように、温風分配部１０からダクトの長手方向に離れるほど他方のカバー部材２Ｂに対する一方のカバー部材２Ａの挿入量Ｌを大きくすることでダクトの短手方向の幅Ｗが徐々に小さくなるように変化するように温風式融雪装置用絶縁ダクト１を構成することが可能である。また、例えば図１（Ａ）で温風分配部１０より左側に示すように、２つのカバー部材２Ａ、２Ｂで形成されるダクトの幅Ｗがダクトの長手方向に沿って一定になるようにすることも可能である。 That is, for example, as shown on the right side of the warm air distribution unit 10 in FIG. 1A, the insertion amount L of one cover member 2A with respect to the other cover member 2B increases as the distance from the warm air distribution unit 10 in the longitudinal direction of the duct increases. It is possible to configure the insulating duct 1 for the warm air type snow melting device so that the width W in the lateral direction of the duct gradually decreases by increasing the size. Further, for example, as shown on the left side of the warm air distribution unit 10 in FIG. 1A, the width W of the duct formed by the two cover members 2A and 2B is made constant along the longitudinal direction of the duct. It is also possible.

カバー部材２Ａ、２Ｂを構成する材料は、絶縁性を有するものであれば任意の材料を用いることが可能であるが、強度や耐久性、扱い易さ等の点から繊維強化プラスチック（fiber reinforced plastics：ＦＲＰ）、特にガラス繊維強化プラスチック（glass fiber reinforced plastics：ＧＦＲＰ）が好ましく用いられる。また、このダクト内に温風が供給されるため、カバー部材２Ａ、２Ｂは耐熱性を有することが好ましい。例えばガラス繊維強化プラスチックの表裏面をそれぞれクレー（粘度）でコートしたものを用いれば、さらに不燃性を有するようになるため、より好ましい。 As the material constituting the cover members 2A and 2B, any material can be used as long as it has insulating properties, but fiber reinforced plastics are used in terms of strength, durability, ease of handling, and the like. : FRP), especially glass fiber reinforced plastics (GFRP) are preferably used. Further, since warm air is supplied into the duct, it is preferable that the cover members 2A and 2B have heat resistance. For example, it is more preferable to use a glass fiber reinforced plastic coated on the front and back surfaces with clay (viscosity) because it becomes more nonflammable.

また、図１（Ｂ）に示すように、温風式融雪装置用絶縁ダクト１の両側面（カバー部材２Ａ、２Ｂの各側面）には、ダクト内に供給された温風をレールに向けてそれぞれ吹き出すための複数の孔３が形成されている。その際、温風分配部１０からダクト内に供給された温風が温風分配部１０に近い部分の孔３から多く吹き出されてしまうと、温風分配部１０からダクトの長手方向に離れた位置の孔３から温風が吹き出されなくなったり、温風の吹き出し量が少なくなったりするため、孔３の大きさや孔３を形成する長手方向の間隔等は、ダクトの長手方向の各位置でそれぞれ適切な量の温風が吹き出されるように適切に設定される。なお、図１（Ａ）、（Ｂ）や後述する図２（Ａ）における蓋４については後で説明する。 Further, as shown in FIG. 1 (B), on both side surfaces (each side surface of the cover members 2A and 2B) of the insulating duct 1 for the warm air type snow melting device, the warm air supplied into the duct is directed toward the rail. A plurality of holes 3 for blowing out are formed. At that time, if a large amount of hot air supplied from the hot air distribution unit 10 into the duct is blown out from the hole 3 in the portion close to the hot air distribution unit 10, the hot air distribution unit 10 is separated from the hot air distribution unit 10 in the longitudinal direction of the duct. Since warm air is not blown out from the hole 3 at the position and the amount of hot air blown out is reduced, the size of the hole 3 and the interval in the longitudinal direction forming the hole 3 are set at each position in the longitudinal direction of the duct. Each is set appropriately so that an appropriate amount of warm air is blown out. The lid 4 in FIGS. 1 (A) and 1 (B) and FIG. 2 (A) described later will be described later.

図１０に示したように、従来の金属等の導電性の材料で形成されていた温風式融雪装置用ダクト１０１を分岐器のデルタエリアＡの方向に延ばすと、温風式融雪装置用ダクト１０１と各レール５０との距離が近くなるため、温風式融雪装置用ダクト１０１を介してレール５０同士が短絡するおそれがある。そのため、図２（Ｂ）に示す従来の温風式融雪装置用ダクト１０１は、デルタエリアＡの方向に延ばすことができず、融雪面積をデルタエリアＡの方向に広げることが難しかった。なお、図２（Ａ）、（Ｂ）等において、符号５１は枕木を表す。 As shown in FIG. 10, when the duct 101 for the warm air type snowmelting device, which is formed of a conventional conductive material such as metal, is extended in the direction of the delta area A of the turnout, the duct for the warm air type snowmelting device is extended. Since the distance between the 101 and each rail 50 becomes short, there is a possibility that the rails 50 may be short-circuited with each other via the duct 101 for the warm air type snow melting device. Therefore, the conventional duct 101 for a warm air type snow melting device shown in FIG. 2B cannot be extended in the direction of the delta area A, and it is difficult to extend the snow melting area in the direction of the delta area A. In addition, in FIG. 2A, (B) and the like, reference numeral 51 represents a sleeper.

それに対して、温風式融雪装置用絶縁ダクト１を上記の本実施形態のように構成すると、温風式融雪装置用絶縁ダクト１は絶縁性であるため、図２（Ａ）に示すように、温風式融雪装置用絶縁ダクト１をデルタエリアＡの方向に延ばして温風式融雪装置用絶縁ダクト１と各レール５０との距離が近くなっても、温風式融雪装置用絶縁ダクト１を介してレール５０同士が短絡することはない。そのため、本実施形態に係る温風式融雪装置用絶縁ダクト１は、デルタエリアＡの方向に延ばすことが可能となる。 On the other hand, when the insulating duct 1 for the warm air type snow melting device is configured as in the present embodiment, the insulating duct 1 for the warm air type snow melting device is insulating, as shown in FIG. 2 (A). , Even if the insulation duct 1 for the warm air snowmelter is extended in the direction of the delta area A and the distance between the insulation duct 1 for the warm air snowmelter and each rail 50 becomes shorter, the insulation duct 1 for the warm air snowmelter 1 The rails 50 do not short-circuit with each other. Therefore, the insulating duct 1 for the warm air type snow melting device according to the present embodiment can be extended in the direction of the delta area A.

そのため、温風式融雪装置用絶縁ダクト１の側面から各レール５０に向かって温風が吹き出される面積が従来の温風式融雪装置用ダクト１０１よりデルタエリアＡの方向に広がるため、その分、融雪面積を広げることが可能となる。 Therefore, the area where warm air is blown from the side surface of the insulating duct 1 for the warm air type snowmelting device toward each rail 50 expands in the direction of the delta area A from the conventional duct 101 for the warm air type snowmelting device. , It is possible to expand the snowmelt area.

また、温風式融雪装置用絶縁ダクト１内を温風が通るため温風式融雪装置用絶縁ダクト１自体も熱を帯びる。そして、上記のように本実施形態に係る温風式融雪装置用絶縁ダクト１は従来の温風式融雪装置用ダクト１０１より長手方向の長さを長くすることができるため、その分、温風式融雪装置用絶縁ダクト１に接触する雪（温風式融雪装置用絶縁ダクト１上の雪や側面等に接触する雪）を従来の温風式融雪装置用ダクト１０１より多く融かすことが可能となり、この点においても、融雪面積を広げることが可能となる。 Further, since the warm air passes through the insulating duct 1 for the warm air type snow melting device, the insulating duct 1 for the warm air type snow melting device itself is also heated. As described above, the insulating duct 1 for the warm air type snowmelting device according to the present embodiment can have a longer length in the longitudinal direction than the conventional duct 101 for the warm air type snowmelting device, and therefore the warm air can be made longer by that amount. It is possible to melt more snow that comes into contact with the insulating duct 1 for the type snow melting device (snow that comes into contact with the snow on the insulating duct 1 for the warm air type snow melting device, snow that comes into contact with the side surface, etc.) In this respect as well, the snowmelt area can be expanded.

なお、ダクトの長手方向の長さを同一とする条件の下で、カバー部材をガラス繊維強化プラスチックで形成した本実施形態に係る温風式融雪装置用絶縁ダクト１の場合と鋼で形成した従来の温風式融雪装置用ダクト１０１の場合に、ダクトの末端部（温風分配部１０から最も遠い部分）の表面温度Ｔを測定したフィールド試験の結果の一例を図３に示す。このフィールド試験では、時刻ｔ_０に温風分配部１０からダクト内への温風の供給を開始し、時刻ｔ_１に温風の供給を停止した。 It should be noted that, under the condition that the lengths of the ducts in the longitudinal direction are the same, the case of the insulating duct 1 for the warm air type snow melting device according to the present embodiment in which the cover member is made of glass fiber reinforced plastic and the conventional case of being made of steel. FIG. 3 shows an example of the result of the field test in which the surface temperature T of the end portion of the duct (the portion farthest from the warm air distribution portion 10) was measured in the case of the duct 101 for the warm air type snow melting device. In this field test, starting the supply of the hot air from the hot air distribution unit 10 at time t ₀ into the duct, and stop the supply of hot air at time t _1.

図３に示すように、カバー部材２Ａ、２Ｂをガラス繊維強化プラスチックで形成した本実施形態に係る温風式融雪装置用絶縁ダクト１の場合（図中α参照）と鋼で形成した従来の温風式融雪装置用ダクト１０１の場合（図中β参照）とを比較すると、温風分配部１０からダクト内への温風の供給を開始した時点では、ほぼ同様に表面温度Ｔが上昇するが、温風分配部１０からダクト内への温風の供給を停止すると、鋼で形成した従来の温風式融雪装置用ダクト１０１の場合は比較的速やかに表面温度Ｔが低下するのに対し、ガラス繊維強化プラスチックで形成した本実施形態に係る温風式融雪装置用絶縁ダクト１の場合は表面温度Ｔの低下が緩慢であり、温風分配部１０からダクト内への温風の供給を停止しても表面温度Ｔが高温の状態が長く保たれることが分かった。 As shown in FIG. 3, the case of the insulating duct 1 for the warm air type snow melting device according to the present embodiment in which the cover members 2A and 2B are made of glass fiber reinforced plastic (see α in the figure) and the conventional temperature made of steel. Comparing with the case of the duct 101 for a wind-type snow melting device (see β in the figure), the surface temperature T rises in almost the same manner when the supply of warm air from the warm air distribution unit 10 into the duct is started. When the supply of hot air from the hot air distribution unit 10 into the duct is stopped, the surface temperature T drops relatively quickly in the case of the conventional duct 101 for a hot air type snow melting device made of steel. In the case of the insulating duct 1 for the hot air type snow melting device according to the present embodiment formed of glass fiber reinforced plastic, the surface temperature T gradually decreases, and the supply of hot air from the hot air distribution unit 10 into the duct is stopped. However, it was found that the surface temperature T was maintained at a high temperature for a long time.

これは、本実施形態に係る温風式融雪装置用絶縁ダクト１のカバー部材２Ａ、２Ｂをガラス繊維強化プラスチックで形成した場合の方が、カバー部材を鋼で形成した従来の温風式融雪装置用ダクト１０１の場合よりもカバー部材の比熱が高いためと考えられる。このように、本実施形態のように温風式融雪装置用絶縁ダクト１のカバー部材２Ａ、２Ｂを繊維強化プラスチック（ＦＲＰ）やガラス繊維強化プラスチック（ＧＦＲＰ）等のプラスチックを用いて構成すれば、温風分配部１０からダクト内への温風の供給を停止しても温風式融雪装置用絶縁ダクト１のカバー部材２Ａ、２Ｂの表面温度Ｔが高温の状態を長く保つことが可能となる。 This is because the cover members 2A and 2B of the insulation duct 1 for the warm air type snowmelting device according to the present embodiment are made of glass fiber reinforced plastic, and the cover member is made of steel. This is considered to be because the specific heat of the cover member is higher than that of the duct 101. As described above, if the cover members 2A and 2B of the insulating duct 1 for the warm air type snow melting device are configured by using plastics such as fiber reinforced plastic (FRP) and glass fiber reinforced plastic (GFRP) as in the present embodiment, Even if the supply of hot air from the hot air distribution unit 10 into the duct is stopped, the surface temperature T of the cover members 2A and 2B of the insulating duct 1 for the hot air type snow melting device can be maintained at a high temperature for a long time. ..

上記のように、本実施形態に係る温風式融雪装置用絶縁ダクト１では融雪面積を広げることが可能となる。そして、このように融雪面積が広がると、分岐器のデルタエリアＡや温風式融雪装置用絶縁ダクト１の周囲に雪が全くない部分を作ることができる。そして、このように雪が全くない部分があると、例えば鉄道車両がスノープラウで雪を押しながら分岐器に進入しても、押されてきた雪がこの雪が全くない部分に均されていく、すなわち雪がその部分の温風式融雪装置用絶縁ダクト１とレール５０との間や温風式融雪装置用絶縁ダクト１上に溜まっていく状態になり、少なくともクロッシング部Ｃ（図１０参照）まで雪は運ばれない。 As described above, the insulation duct 1 for the warm air type snow melting device according to the present embodiment can increase the snow melting area. When the snowmelt area is expanded in this way, a portion where there is no snow can be formed around the delta area A of the turnout and the insulating duct 1 for the warm air type snowmelting device. And if there is a part where there is no snow like this, for example, even if a railroad vehicle enters the turnout while pushing the snow with a snowplow, the pushed snow will be leveled to this part where there is no snow, that is, the snow In that part, the snow accumulates between the insulation duct 1 for the warm air type snow melting device and the rail 50 and on the insulation duct 1 for the warm air type snow melting device, and the snow is transported to at least the crossing section C (see FIG. 10). Not exposed.

そして、温風式融雪装置用絶縁ダクト１とレール５０との間に溜まった雪は、温風式融雪装置用絶縁ダクト１から吹き出される温風によって融かされる。また、温風式融雪装置用絶縁ダクト１上に溜まった雪は、温風式融雪装置用絶縁ダクト１自体の熱で融かされる。そのため、再び、分岐器のデルタエリアＡや温風式融雪装置用絶縁ダクト１の周囲に雪が全くない部分が作られる。このように、本実施形態に係る温風式融雪装置用絶縁ダクト１によれば、融雪面積を的確に広げることが可能となり、分岐器のデルタエリアＡや温風式融雪装置用絶縁ダクト１の周囲に雪が全くない部分を作ることが可能となるため、例えば分岐器に進入する鉄道車両のスノープラウで雪が押されてくる等しても、デルタエリアＡに雪を持ち込ませないようにすることが可能となり、ポイントが動かなくなってポイント不転換が生じてしまう等の問題が生じることを的確に防止することが可能となる。 Then, the snow accumulated between the hot air type snow melting device insulating duct 1 and the rail 50 is melted by the warm air blown from the warm air type snow melting device insulating duct 1. Further, the snow accumulated on the insulating duct 1 for the warm air type snow melting device is melted by the heat of the insulating duct 1 for the warm air type snow melting device itself. Therefore, again, a portion where there is no snow is created around the delta area A of the turnout and the insulating duct 1 for the warm air type snow melting device. As described above, according to the insulating duct 1 for the warm air type snow melting device according to the present embodiment, the snow melting area can be accurately expanded, and the delta area A of the turnout and the insulating duct 1 for the warm air type snow melting device 1 can be used. Since it is possible to create a part where there is no snow around, even if snow is pushed by a snowplow of a railroad vehicle entering a turnout, for example, do not bring snow into Delta Area A. It is possible to accurately prevent problems such as points not moving and point non-conversion.

一方、上記のように、本実施形態に係る温風式融雪装置用絶縁ダクト１は、他方のカバー部材２Ｂに対する一方のカバー部材２Ａの挿入量Ｌをダクトの長手方向の各位置で調整することで、ダクトの短手方向の幅Ｗをダクトの長手方向で変化させて温風式融雪装置用絶縁ダクト１の形状を種々変化させることができるようになっている。そのため、温風式融雪装置用絶縁ダクト１を上方から見た場合の形状を、図２（Ａ）の右側に示すように台形状（あるいは三角形状。以下同じ。）に形成したり、あるいは図２（Ａ）の左側に示すように長方形状に形成したりすることができる。 On the other hand, as described above, in the insulating duct 1 for the warm air type snow melting device according to the present embodiment, the insertion amount L of one cover member 2A with respect to the other cover member 2B is adjusted at each position in the longitudinal direction of the duct. Therefore, the width W in the lateral direction of the duct can be changed in the longitudinal direction of the duct to change the shape of the insulating duct 1 for the warm air type snowmelting device in various ways. Therefore, the shape of the insulating duct 1 for the warm air type snow melting device when viewed from above may be formed into a trapezoidal shape (or a triangular shape; the same shall apply hereinafter) as shown on the right side of FIG. 2 (A). 2 (A) can be formed in a rectangular shape as shown on the left side.

そのため、温風式融雪装置用絶縁ダクト１の形状を、分岐器のデルタエリアＡの形状にあわせて変えることができる。すなわち、例えば温風式融雪装置用絶縁ダクト１の形状を分岐器の番号（すなわち分岐したレールが基本レールから１ｍ離れるために分岐点から何ｍ進むか）や両開き、片開き等の形状等にあわせて温風式融雪装置用絶縁ダクト１の形状を変えることが可能となる。そのため、温風式融雪装置用絶縁ダクト１の形状をデルタエリアＡの形状にあわせて変えることで、デルタエリアＡを含む分岐器のレール間に溜まった雪に対して温風を的確に吹き出すことが可能となり、融雪を的確に行うことが可能となる。そのため、この点においても融雪面積を拡大することが可能となる。 Therefore, the shape of the insulating duct 1 for the warm air type snow melting device can be changed according to the shape of the delta area A of the turnout. That is, for example, the shape of the insulation duct 1 for the warm air type snowmelting device is changed to the number of the turnout (that is, how many meters the branched rail advances from the branch point because it is 1 m away from the basic rail), the shape of double opening, single opening, etc. At the same time, the shape of the insulating duct 1 for the warm air type snow melting device can be changed. Therefore, by changing the shape of the insulation duct 1 for the warm air type snow melting device according to the shape of the delta area A, the warm air can be accurately blown out to the snow accumulated between the rails of the turnout including the delta area A. Will be possible, and it will be possible to accurately melt the snow. Therefore, it is possible to expand the snowmelt area in this respect as well.

この場合、本実施形態のように構成する代わりに、例えば、１枚の絶縁板を折り曲げる等してダクトを形成するようにしても温風式融雪装置用絶縁ダクトを所定の形状に形成することができる。しかし、このように構成すると、デルタエリアＡの形状は分岐器ごとに異なるため、１枚の絶縁板を折り曲げる等して形成した温風式融雪装置用絶縁ダクトは、その分岐器にしか用いることができない。すなわち、分岐器ごとに温風式融雪装置用絶縁ダクトを形成しなければならなくなる。 In this case, instead of the configuration as in the present embodiment, the insulating duct for the warm air type snow melting device is formed in a predetermined shape even if the duct is formed by bending one insulating plate, for example. Can be done. However, with this configuration, the shape of the delta area A differs for each turnout, so the insulation duct for the warm air type snowmelter formed by bending one insulating plate or the like should be used only for that turnout. I can't. That is, it is necessary to form an insulating duct for a warm air type snow melting device for each turnout.

それに対し、本実施形態の温風式融雪装置用絶縁ダクト１のように構成すれば、分岐器のデルタエリアＡの形状にあわせて、他方のカバー部材２Ｂに対する一方のカバー部材２Ａの挿入量Ｌを変化させて温風式融雪装置用絶縁ダクト１をデルタエリアＡの形状にあった形状とすることができる。そのため、本実施形態によれば、分岐器ごとに温風式融雪装置用絶縁ダクト１を形成する必要はなく、分岐器のどのような形状のデルタエリアＡに対しても、本実施形態に係る温風式融雪装置用絶縁ダクト１を、その形状を可変させて用いることが可能となるといったメリットがある。 On the other hand, if it is configured like the insulating duct 1 for the warm air type snow melting device of the present embodiment, the insertion amount L of one cover member 2A into the other cover member 2B according to the shape of the delta area A of the turnout. Can be changed so that the insulating duct 1 for the warm air type snow melting device has a shape that matches the shape of the delta area A. Therefore, according to the present embodiment, it is not necessary to form the insulating duct 1 for the warm air type snow melting device for each turnout, and the present embodiment relates to any shape of the delta area A of the turnout. There is an advantage that the insulating duct 1 for a warm air type snow melting device can be used by changing its shape.

［温風式融雪装置用絶縁ダクトの各部の構成］
ところで、温風式融雪装置用絶縁ダクト１のカバー部材２Ａは、複数のカバー部材２Ａの長手方向の端部同士を接着又は孔をあけてリベットでかしめる等して容易に延長することができる。カバー部材２Ｂについても同様である。また、上記のように一方のカバー部材２Ａとそれを挿入する他方のカバー部材２Ｂとがダクトの短手方向に広がらないように固定する際も、両者を接着又はリベットでかしめる等して固定することができる。他方のカバー部材２Ｂに一方のカバー部材２Ａを向い合せて挿入した状態で、それらの周囲に固定ベルトを巻き付け接着する等して両者を固定するようにしてもよい。 [Structure of each part of the insulation duct for the warm air type snow melting device]
By the way, the cover member 2A of the insulating duct 1 for the warm air type snow melting device can be easily extended by adhering the longitudinal ends of the plurality of cover members 2A to each other or by making holes and crimping them with rivets. .. The same applies to the cover member 2B. Further, when fixing the one cover member 2A and the other cover member 2B into which the cover member 2A is inserted so as not to spread in the lateral direction of the duct as described above, both are fixed by bonding or caulking with rivets. can do. In a state where one cover member 2A is inserted into the other cover member 2B so as to face each other, a fixing belt may be wound around them and adhered to fix them.

また、温風式融雪装置用絶縁ダクト１のカバー部材２Ａ、２Ｂの末端部、すなわちカバー部材２Ａ、２Ｂで形成されるダクトの末端部が開放されていると、その末端部の開口から温風が流れ出すようになり、側面に設けられた孔３（図１（Ｂ）参照）から温風が適切に吹き出さなくなる場合がある。そのため、本実施形態では、温風式融雪装置用絶縁ダクト１のカバー部材２Ａ、２Ｂの末端部を、例えば図４（Ａ）、（Ｂ）に示すような蓋４で覆うようになっている。 Further, when the end portions of the cover members 2A and 2B of the insulating duct 1 for the warm air type snow melting device, that is, the end portions of the duct formed by the cover members 2A and 2B are opened, warm air is opened from the opening of the end portions. May flow out, and warm air may not be properly blown out from the hole 3 (see FIG. 1B) provided on the side surface. Therefore, in the present embodiment, the end portions of the cover members 2A and 2B of the insulation duct 1 for the warm air type snow melting device are covered with a lid 4 as shown in FIGS. 4A and 4B, for example. ..

この場合、蓋４を一体の部材として構成することも可能であるが、本実施形態では、温風式融雪装置用絶縁ダクト１が一方のカバー部材２Ａを他方のカバー部材２Ｂに向い合せて挿入して形成されていることにあわせて、蓋４も２つの蓋部材４Ａ、４Ｂを組み合わせて形成されるようになっている。 In this case, the lid 4 can be configured as an integral member, but in the present embodiment, the insulating duct 1 for the warm air type snow melting device inserts one cover member 2A facing the other cover member 2B. The lid 4 is also formed by combining the two lid members 4A and 4B.

角鋼で形成した従来の温風式融雪装置用ダクト１０１の場合には、ダクトの末端部の幅が変わらないため、末端部の開口部分に鋼板を溶接するによって末端部の開口を封止することができた。しかし、本実施形態の場合には、他方のカバー部材２Ｂに対する一方のカバー部材２Ａの挿入量Ｌが変わるとカバー部材２Ａ、２Ｂの末端部の幅Ｗが変わるため、板状部材で末端部の開口を封止する場合には、カバー部材２Ａ、２Ｂの末端部の幅Ｗに合わせていちいち板状部材を切り出さなければならなくなり不便である。
そのため、上記の本実施形態に係る蓋４のように構成すれば、他方のカバー部材２Ｂに対する一方のカバー部材２Ａの挿入量Ｌが変わるとカバー部材２Ａ、２Ｂの末端部の幅Ｗが変わるが、それにあわせて２つの蓋部材４Ａ、４Ｂの重なり幅を変えることで、蓋４の幅をカバー部材２Ａ、２Ｂの末端部の幅Ｗに適切にフィットさせることが可能となり、蓋４でダクトの末端部の開口を適切にかつ容易に封止することが可能となる。なお、この場合も、蓋４をカバー部材２Ａ、２Ｂの末端部に接着又はリベットでかしめる等して固定する。 In the case of the conventional duct 101 for a hot air type snow melting device made of square steel, the width of the end portion of the duct does not change, so the opening at the end portion is sealed by welding a steel plate to the opening portion at the end portion. Was made. However, in the case of the present embodiment, when the insertion amount L of one cover member 2A with respect to the other cover member 2B changes, the width W of the end portion of the cover members 2A and 2B changes. When sealing the opening, it is inconvenient because the plate-shaped member must be cut out in accordance with the width W of the end portions of the cover members 2A and 2B.
Therefore, if the lid 4 according to the present embodiment is configured, the width W of the end portions of the cover members 2A and 2B changes when the insertion amount L of the one cover member 2A with respect to the other cover member 2B changes. By changing the overlapping width of the two lid members 4A and 4B accordingly, the width of the lid 4 can be appropriately fitted to the width W of the end portion of the cover members 2A and 2B. The opening at the end can be properly and easily sealed. Also in this case, the lid 4 is fixed to the end portions of the cover members 2A and 2B by bonding or caulking with rivets.

一方、温風式融雪装置用絶縁ダクト１を構成する各カバー部材２Ａ、２Ｂが、上記のようにそれぞれ断面コ字状であると、例えば、温風式融雪装置用絶縁ダクト１の上に雪が溜まる等して温風式融雪装置用絶縁ダクト１に上方から力が加わった際に、温風式融雪装置用絶縁ダクト１が押し潰されてしまう可能性がある。 On the other hand, if each of the cover members 2A and 2B constituting the insulating duct 1 for the warm air type snow melting device has a U-shaped cross section as described above, for example, snow will be generated on the insulating duct 1 for the warm air type snow melting device. When a force is applied to the warm air type snow melting device insulating duct 1 from above due to accumulation or the like, the warm air type snow melting device insulating duct 1 may be crushed.

そこで、本実施形態では、図１（Ｃ）に示すように、他方のカバー部材２Ｂ内に挿入される一方のカバー部材２Ａの内部の、該一方のカバー部材２Ａの上壁と下壁との間に、補強板５が立設されている。このように構成すれば、温風式融雪装置用絶縁ダクト１に上方から力が加わっても温風式融雪装置用絶縁ダクト１が押し潰されることを的確に防止することが可能となる。また、補強板５を一方のカバー部材２Ａのみに設けることで、一方のカバー部材２Ａを他方のカバー部材２Ｂに向い合せて挿入する際に補強板５が挿入の邪魔にならない。 Therefore, in the present embodiment, as shown in FIG. 1C, the upper wall and the lower wall of the one cover member 2A inside the one cover member 2A inserted into the other cover member 2B. A reinforcing plate 5 is erected between them. With such a configuration, it is possible to accurately prevent the insulating duct 1 for the warm air type snowmelting device from being crushed even if a force is applied to the insulating duct 1 for the warm air type snowmelting device from above. Further, by providing the reinforcing plate 5 only on one cover member 2A, the reinforcing plate 5 does not interfere with the insertion when the one cover member 2A is inserted facing the other cover member 2B.

しかし、一方のカバー部材２Ａ内に単に補強板５を立設するだけだと、カバー部材２Ａ、２Ｂで形成されるダクトの内部が補強板５で仕切られてしまい、カバー部材２Ａ内を通る温風とカバー部材２Ｂ内を通る温風が流通しあわなくなってダクト内の温風の熱や温度分布が均一でなくなる可能性がある。そのため、本実施形態では、カバー部材２Ａの内部を通る温風とカバー部材２Ｂの内部を通る温風とを流通させるために、図５に示すように、カバー部材２Ａの補強板５に複数の開口部５ａが設けられている。 However, if the reinforcing plate 5 is simply erected in one of the cover members 2A, the inside of the duct formed by the cover members 2A and 2B is partitioned by the reinforcing plate 5, and the temperature passing through the inside of the cover member 2A is increased. There is a possibility that the wind and the warm air passing through the cover member 2B do not flow with each other, and the heat and temperature distribution of the warm air in the duct become uneven. Therefore, in the present embodiment, in order to circulate the warm air passing through the inside of the cover member 2A and the warm air passing through the inside of the cover member 2B, as shown in FIG. An opening 5a is provided.

このように補強板５に複数の開口部５ａを設けることで、各開口部５ａを通じてカバー部材２Ａの内部を通る温風とカバー部材２Ｂの内部を通る温風とが流通するようになり、カバー部材２Ａ、２Ｂで形成されるダクト内の温風の熱や温度分布を均一にすることが可能となる。なお、開口部５ａの大きさを大きくし過ぎたり、開口部５ａ同士の間隔が短過ぎると、補強板５の強度が低下して、温風式融雪装置用絶縁ダクト１に上方から力が加わった場合に温風式融雪装置用絶縁ダクト１が押し潰されるおそれがある。そのため、補強板５に設ける開口部５ａの大きさや間隔等は、温風の流通し易さや補強板５の強度等に基づいて適宜決められる。 By providing the reinforcing plate 5 with the plurality of openings 5a in this way, the warm air passing through the inside of the cover member 2A and the warm air passing through the inside of the cover member 2B can flow through each opening 5a, and the cover can be covered. It is possible to make the heat and temperature distribution of the warm air in the duct formed by the members 2A and 2B uniform. If the size of the openings 5a is made too large or the distance between the openings 5a is too short, the strength of the reinforcing plate 5 decreases, and a force is applied to the insulating duct 1 for the warm air type snow melting device from above. In that case, the insulating duct 1 for the warm air type snow melting device may be crushed. Therefore, the size and spacing of the openings 5a provided in the reinforcing plate 5 are appropriately determined based on the ease of circulation of warm air, the strength of the reinforcing plate 5, and the like.

［温風式融雪装置用絶縁ダクトの浮き上がりや位置ずれを防止するための構造］
温風式融雪装置用絶縁ダクト１を分岐器の枕木５１上に単に載置しただけだと、鉄道車両が分岐器を通過する際の振動で、温風式融雪装置用絶縁ダクト１が浮き上がったり（すなわち上方に移動したり）、レール５０に向かう方向（すなわちダクトの短手方向）やレール５０に沿う方向（すなわちダクトの長手方向）に位置ずれを生じてしまう可能性がある。そこで、本実施形態では、以下のようにして、温風式融雪装置用絶縁ダクト１の浮き上がりや位置ずれを防止するようになっている。 [Structure to prevent lifting and misalignment of the insulating duct for the warm air type snow melting device]
If the insulation duct 1 for the warm air type snow melting device is simply placed on the sleeper 51 of the turnout, the insulation duct 1 for the warm air type snow melting device may be lifted by the vibration when the rail vehicle passes through the turnout. (That is, it moves upward), there is a possibility of misalignment in the direction toward the rail 50 (that is, the lateral direction of the duct) and the direction along the rail 50 (that is, the longitudinal direction of the duct). Therefore, in the present embodiment, the insulating duct 1 for the warm air type snowmelting device is prevented from being lifted or misaligned as follows.

本実施形態では、温風式融雪装置用絶縁ダクト１の浮き上がりを防止するために、図６に示すような浮き上がり防止用金具６が用いられている。本実施形態では、浮き上がり防止用金具６は、取付板６ａと係合部６ｂとを有しており、取付板６ａの一端側が係合部６ｂに溶接等により取り付けられている。そして、係合部６ｂを、下に枕木５１がない部分のレール５０の下部に係合させることでレール５０に固定され、浮き上がり防止用金具６がレール５０に取り付けられるようになっている。なお、浮き上がり防止用金具６をレール５０に取り付ける代わりに枕木５１に取り付けるように構成することも可能である。 In the present embodiment, in order to prevent the insulating duct 1 for the warm air type snow melting device from rising, the lifting prevention metal fitting 6 as shown in FIG. 6 is used. In the present embodiment, the lifting prevention metal fitting 6 has a mounting plate 6a and an engaging portion 6b, and one end side of the mounting plate 6a is attached to the engaging portion 6b by welding or the like. Then, the engaging portion 6b is fixed to the rail 50 by engaging with the lower part of the rail 50 in the portion where the sleepers 51 are not underneath, and the lifting prevention metal fitting 6 is attached to the rail 50. It is also possible to configure the lift prevention metal fitting 6 to be attached to the sleepers 51 instead of being attached to the rail 50.

そして、レール５０に取り付けた浮き上がり防止用金具６の取付板６ａの他端側（係合部６ｂに取り付けられている側とは反対側）が、温風式融雪装置用絶縁ダクト１の側面に形成されたスリットＳに挿入されるようになっている。そして、温風式融雪装置用絶縁ダクト１のスリットＳに挿入された浮き上がり防止用金具６の取付板６ａにより温風式融雪装置用絶縁ダクト１が上下方向に動くことが抑制されるため、鉄道車両が分岐器を通過する際に振動が生じる等しても浮き上がり防止用金具６により温風式融雪装置用絶縁ダクト１が浮き上がることを的確に防止することが可能となる。 Then, the other end side of the mounting plate 6a of the lifting prevention metal fitting 6 attached to the rail 50 (the side opposite to the side attached to the engaging portion 6b) is on the side surface of the insulating duct 1 for the warm air type snow melting device. It is designed to be inserted into the formed slit S. Then, since the mounting plate 6a of the floating prevention metal fitting 6 inserted into the slit S of the insulating duct 1 for the warm air type snowmelting device suppresses the insulating duct 1 for the warm air type snowmelting device from moving in the vertical direction, the railway Even if vibration occurs when the vehicle passes through the turnout, the lifting prevention metal fitting 6 makes it possible to accurately prevent the warm air type snow melting device insulating duct 1 from lifting.

なお、温風式融雪装置用絶縁ダクト１の側面に形成されたスリットＳと、それに挿入された浮き上がり防止用金具６の取付板６ａとの隙間の大きさは、その隙間から吹き出す温風の量が、温風式融雪装置用絶縁ダクト１の側面に形成された孔３（図１（Ｂ）参照）から吹き出す温風の量と同程度になるような大きさになるように適切に調整される。
また、本実施形態では、浮き上がり防止用金具６（取付板６ａ、係合部６ｂ）は金属で形成されている。そして、この場合、浮き上がり防止用金具６の取付板６ａが挿入されるスリットＳを、図７（Ａ）に示すように温風式融雪装置用絶縁ダクト１の左右の側面の、ダクトの長手方向の同じ位置にそれぞれ設けると、各スリットＳに挿入された浮き上がり防止用金具６の取付板６ａの端部同士が接近してしまい、左右のレール５０にそれぞれ取り付けられた各浮き上がり防止用金具６を介して左右のレール５０同士が短絡してしまう可能性がある。 The size of the gap between the slit S formed on the side surface of the insulating duct 1 for the warm air type snowmelting device and the mounting plate 6a of the lifting prevention metal fitting 6 inserted therein is the amount of warm air blown out from the gap. Is appropriately adjusted so that the size is about the same as the amount of warm air blown out from the hole 3 (see FIG. 1 (B)) formed on the side surface of the insulating duct 1 for the warm air type snow melting device. Ru.
Further, in the present embodiment, the lifting prevention metal fitting 6 (mounting plate 6a, engaging portion 6b) is made of metal. Then, in this case, as shown in FIG. 7A, the slit S into which the mounting plate 6a of the lifting prevention metal fitting 6 is inserted is formed on the left and right side surfaces of the insulating duct 1 for the warm air type snow melting device in the longitudinal direction of the duct. If they are provided at the same positions, the ends of the mounting plates 6a of the lifting prevention metal fittings 6 inserted into the slits S come close to each other, and the lifting prevention metal fittings 6 attached to the left and right rails 50 are respectively provided. There is a possibility that the left and right rails 50 may be short-circuited with each other.

そこで、浮き上がり防止用金具６を金属で形成する場合には、図７（Ｂ）に示すように、スリットＳを、温風式融雪装置用絶縁ダクト１の左右の側面で、ダクトの長手方向の互いに異なる位置にそれぞれ設けることが好ましい。このように構成すれば、上記のような各浮き上がり防止用金具６を介する左右のレール５０同士の短絡が生じることを防止することができる。 Therefore, when the floating prevention metal fitting 6 is made of metal, as shown in FIG. 7B, slits S are formed on the left and right side surfaces of the hot air type snow melting device insulating duct 1 in the longitudinal direction of the duct. It is preferable to provide them at different positions. With this configuration, it is possible to prevent the left and right rails 50 from being short-circuited via the above-mentioned floating prevention metal fittings 6.

一方、本実施形態では、温風式融雪装置用絶縁ダクト１がレール５０に向かう方向（すなわちダクトの短手方向）に位置ずれを生じることを防止するために、図８に示すような短手方向位置ずれ防止金具７が用いられている。本実施形態では、短手方向位置ずれ防止金具７は、温風式融雪装置用絶縁ダクト１の側面部に係合する係合部７ａと、短手方向位置ずれ防止金具７を枕木５１にボルトで螺着する等して取り付けるための取付部７ｂとを有している。そして、図８では図示を省略したが、温風式融雪装置用絶縁ダクト１の反対側の側面にも短手方向位置ずれ防止金具７が取り付けられる。 On the other hand, in the present embodiment, in order to prevent the insulating duct 1 for the warm air type snow melting device from being displaced in the direction toward the rail 50 (that is, the lateral direction of the duct), the short side as shown in FIG. A directional misalignment prevention metal fitting 7 is used. In the present embodiment, the short-side misalignment prevention metal fitting 7 bolts the engaging portion 7a that engages with the side surface of the warm air type snow melting device insulating duct 1 and the short-side misalignment prevention metal fitting 7 to the sleepers 51. It has a mounting portion 7b for mounting by screwing or the like. Although not shown in FIG. 8, a lateral displacement prevention metal fitting 7 is also attached to the side surface of the insulating duct 1 for the warm air type snow melting device on the opposite side.

このようにして、短手方向位置ずれ防止金具７の係合部７ａが温風式融雪装置用絶縁ダクト１の側面部に係合するように取付部７ｂを枕木５１に取り付けて固定することで、鉄道車両が分岐器を通過する際に振動が生じる等した際に、温風式融雪装置用絶縁ダクト１が短手方向に移動しようとしても短手方向位置ずれ防止金具７により移動が阻止されるため、温風式融雪装置用絶縁ダクト１がその短手方向に移動すること（すなわち短手方向への位置ずれ）を的確に防止することが可能となる。 In this way, the mounting portion 7b is attached to and fixed to the sleepers 51 so that the engaging portion 7a of the lateral displacement prevention metal fitting 7 engages with the side surface portion of the insulation duct 1 for the warm air type snow melting device. , When a railroad vehicle vibrates when passing through a turnout, even if the insulation duct 1 for the warm air type snow melting device tries to move in the short direction, the movement is blocked by the short direction misalignment prevention metal fitting 7. Therefore, it is possible to accurately prevent the insulating duct 1 for the warm air type snow melting device from moving in the lateral direction (that is, the displacement in the lateral direction).

また、本実施形態では、温風式融雪装置用絶縁ダクト１がレール５０に沿う方向（すなわちダクトの長手方向）に位置ずれを生じることを防止するために、図９に示すような長手方向位置ずれ防止金具８が用いられている。本実施形態では、長手方向位置ずれ防止金具８は、略Ｌ字状の形状をしており、温風式融雪装置用絶縁ダクト１の長手方向の末端部に当接する当接部８ａと、長手方向位置ずれ防止金具８を枕木５１にボルトで螺着する等して取り付けるための取付部８ｂとを有している。 Further, in the present embodiment, in order to prevent the insulating duct 1 for the warm air type snow melting device from being displaced in the direction along the rail 50 (that is, the longitudinal direction of the duct), the position in the longitudinal direction as shown in FIG. The slip prevention metal fitting 8 is used. In the present embodiment, the longitudinal misalignment prevention metal fitting 8 has a substantially L-shaped shape, and has a contact portion 8a that abuts on the longitudinal end portion of the insulation duct 1 for the warm air type snow melting device and a longitudinal portion. It has an attachment portion 8b for attaching the directional misalignment prevention metal fitting 8 to the sleeper 51 by screwing it to the sleeper 51 or the like.

そして、図９では図示を省略したが、温風式融雪装置用絶縁ダクト１の反対側の末端部にも同様の長手方向位置ずれ防止金具８が当接するように取り付けられる。また、本実施形態では、図９に示すように、長手方向位置ずれ防止金具８の取付部８ｂは、２つの枕木５１にわたる長さを有しており、２つの枕木５１にそれぞれ固定されるようになっている。 Although not shown in FIG. 9, the same longitudinal misalignment prevention metal fitting 8 is attached to the end portion on the opposite side of the insulation duct 1 for the warm air type snow melting device so as to abut. Further, in the present embodiment, as shown in FIG. 9, the attachment portion 8b of the longitudinal position displacement prevention metal fitting 8 has a length extending over the two sleepers 51, and is fixed to each of the two sleepers 51. It has become.

このようにして、長手方向位置ずれ防止金具８の当接部８ａが温風式融雪装置用絶縁ダクト１の長手方向の末端部に当接するように取付部８ｂを枕木５１に固定することで、鉄道車両が分岐器を通過する際に振動が生じる等した際に、温風式融雪装置用絶縁ダクト１が長手方向に移動しようとしても長手方向位置ずれ防止金具８により移動が阻止されるため、温風式融雪装置用絶縁ダクト１がその長手方向に移動すること（すなわち長手方向への位置ずれ）を的確に防止することが可能となる。 In this way, the mounting portion 8b is fixed to the sleeper 51 so that the abutting portion 8a of the longitudinal misalignment prevention metal fitting 8 abuts on the end portion in the longitudinal direction of the insulating duct 1 for the warm air type snow melting device. When the railroad vehicle vibrates when passing through the turnout, even if the insulating duct 1 for the warm air type snow melting device tries to move in the longitudinal direction, the movement is blocked by the longitudinal misalignment prevention metal fitting 8. It is possible to accurately prevent the insulating duct 1 for the warm air type snow melting device from moving in the longitudinal direction (that is, misalignment in the longitudinal direction).

なお、本実施形態では、上記のように、浮き上がり防止用金具６の取付板６ａを温風式融雪装置用絶縁ダクト１の側面に形成されたスリットＳに挿入して、温風式融雪装置用絶縁ダクト１の浮き上がりを防止する（図７（Ｂ）等参照）。そして、このように構成することで、浮き上がり防止用金具６の取付板６ａとスリットＳとが係合して、温風式融雪装置用絶縁ダクト１が長手方向に移動すること（すなわち長手方向の位置ずれ）を防止する長手方向位置ずれ防止金具８としても機能するようになっている。
また、本実施形態では、図８に示したように、短手方向位置ずれ防止金具７の係合部７ａは、温風式融雪装置用絶縁ダクト１の側面部だけでなくその上面にも係合する形状になっている。そのため、本実施形態に係る短手方向位置ずれ防止金具７は、温風式融雪装置用絶縁ダクト１の浮き上がりを防止する浮き上がり防止用金具６としても機能するようになっている。 In the present embodiment, as described above, the mounting plate 6a of the lifting prevention metal fitting 6 is inserted into the slit S formed on the side surface of the insulating duct 1 for the warm air type snowmelting device, and is used for the warm air type snowmelting device. Prevents the insulation duct 1 from rising (see FIG. 7B and the like). With this configuration, the mounting plate 6a of the lifting prevention metal fitting 6 and the slit S are engaged with each other, and the insulating duct 1 for the warm air type snowmelting device moves in the longitudinal direction (that is, in the longitudinal direction). It also functions as a longitudinal misalignment prevention metal fitting 8 for preventing misalignment).
Further, in the present embodiment, as shown in FIG. 8, the engaging portion 7a of the lateral displacement prevention metal fitting 7 is engaged not only with the side surface portion of the insulating duct 1 for the warm air type snow melting device but also with the upper surface thereof. It has a matching shape. Therefore, the lateral displacement prevention metal fitting 7 according to the present embodiment also functions as a lifting prevention metal fitting 6 for preventing the floating of the insulating duct 1 for the warm air type snow melting device.

さらに、図９では、長手方向位置ずれ防止金具８の当接部８ａが、単に温風式融雪装置用絶縁ダクト１の長手方向の末端部に当接するだけの形状とされている場合を示したが、例えば、図８に示した短手方向位置ずれ防止金具７の係合部７ａと同様に、長手方向位置ずれ防止金具８の当接部８ａを、温風式融雪装置用絶縁ダクト１の末端部の上面にも係合する形状に形成すれば、長手方向位置ずれ防止金具８が、温風式融雪装置用絶縁ダクト１の浮き上がりを防止する浮き上がり防止用金具６としても機能するようになる。
このように、各金具に、浮き上がり防止用金具６の機能や短手方向位置ずれ防止金具７の機能、長手方向位置ずれ防止金具８の機能等の種々の機能をもたせるように構成し、温風式融雪装置用絶縁ダクト１の設置場所に合わせて各金具を適切に選定して用いるように構成することが望ましい。 Further, FIG. 9 shows a case where the contact portion 8a of the longitudinal misalignment prevention metal fitting 8 is simply in contact with the end portion in the longitudinal direction of the insulating duct 1 for the warm air type snow melting device. However, for example, similarly to the engaging portion 7a of the lateral misalignment prevention metal fitting 7 shown in FIG. 8, the contact portion 8a of the longitudinal misalignment prevention metal fitting 8 is attached to the insulating duct 1 for the warm air type snow melting device. If the metal fitting 8 is formed so as to engage with the upper surface of the end portion, the metal fitting 8 for preventing displacement in the longitudinal direction also functions as a metal fitting 6 for preventing lifting of the insulating duct 1 for the warm air type snow melting device. ..
In this way, each metal fitting is configured to have various functions such as the function of the lifting prevention metal fitting 6, the function of the lateral position deviation prevention metal fitting 7, the function of the longitudinal position deviation prevention metal fitting 8, and the warm air. It is desirable that each metal fitting is appropriately selected and used according to the installation location of the insulating duct 1 for the snowmelting device.

なお、本発明は上記の実施形態に限定されず、本発明の趣旨を逸脱しない限り、適宜変更可能であることは言うまでもない。 Needless to say, the present invention is not limited to the above-described embodiment, and can be appropriately modified as long as it does not deviate from the gist of the present invention.

１温風式融雪装置用絶縁ダクト
２Ａ一方のカバー部材
２Ｂ他方のカバー部材
３孔
５補強板
５ａ開口部
６浮き上がり防止用金具
６ａ取付板
７短手方向位置ずれ防止金具
８長手方向位置ずれ防止金具
２０温風発生装置
５０レール
５１枕木
Ｌ挿入量
Ｓスリット
Ｗ幅 1 Insulation duct for hot air type snow melting device 2A One cover member 2B The other cover member 3 Hole 5 Reinforcing plate 5a Opening 6 Lifting prevention metal fittings 6a Mounting plate 7 Short side misalignment prevention metal fittings 8 Longitudinal misalignment prevention metal fittings 20 Warm air generator 50 Rail 51 Sleepers L Insertion amount S Slit W width

Claims

In an insulating duct for a warm air type snow melting device that is laid between rails in a railroad turnout and blows out the warm air supplied inside from a plurality of holes provided on the side toward each rail.
It has two cover members with a U-shaped cross section made of an insulating material.
A duct is formed by inserting one of the cover members so as to face the other cover member, and at the same time, the duct is formed.
The plurality of holes for blowing warm air are formed on the side surface of the duct.
By changing the insertion amount of the one cover member into the other cover member in the longitudinal direction of the duct, the width of the duct in the lateral direction is made variable along the longitudinal direction of the duct. Insulated duct for warm air type snow melting device.

A reinforcing plate is erected between the upper wall and the lower wall of the one cover member inside the one cover member inserted into the other cover member.
The claim is characterized in that the reinforcing plate is provided with a plurality of openings for passing warm air passing through the inside of the one cover member and warm air passing through the inside of the other cover member. Item 1. The insulating duct for a hot air type snow melting device according to Item 1.

The insulating duct for a warm air type snow melting device according to claim 1 or 2, wherein the two cover members are each made of fiber reinforced plastic.

The insulating duct for a warm air type snowmelting device according to any one of claims 1 to 3.
A hot air generator that supplies hot air to the insulation duct for the hot air type snowmelting device,
With
Further, it has a mounting plate, one end side of the mounting plate is fixed to a rail or sleepers, and the other end side of the mounting plate is inserted into a slit formed on the side surface of the insulating duct for the warm air type snow melting device. The warm air type snowmelting device is provided with metal fittings for preventing floating of the insulating duct for the warm air type snowmelting device.

Further, it is fixed to the sleepers and engages with the side surface portion of the insulating duct for the warm air type snowmelting device to prevent the insulating duct for the warm air type snowmelting device from moving in the lateral direction. The warm air type snow melting device according to claim 4, further comprising a directional misalignment prevention metal fitting.

Further, the length is fixed to the sleeper and abuts on the end portion in the longitudinal direction of the insulating duct for the warm air type snowmelting device to prevent the insulating duct for the warm air type snowmelting device from moving in the longitudinal direction. The warm air type snow melting device according to claim 4 or 5, further comprising a directional misalignment prevention metal fitting.