JP2021030763A - Railway vehicle - Google Patents

Abstract

To provide a railway vehicle whose degree of freedom to design of a ceiling structure can be improved.SOLUTION: Since an inspection lid 7 comprises an air outlet 70 whose opening is formed at a position to oppose a duct opening part 50, conditioned air sent to the duct opening part 50 from an inside of a duct 5 is blown out to a passenger room through the air outlet 70 of the inspection lid 7. In other words, since the panel opening part 40 and the air outlet 70 can be arranged in an overlapped state by forming the air outlet 70 at the inspection lid 7 covering a panel opening part 40, a space in which the panel opening part 40 and the air outlet 70 are arranged can be decreased. Therefore, the occurrence of restriction on arrangement position of other members can be suppressed and a degree of freedom to design of a ceiling structure of a railway vehicle 1 can be improved.SELECTED DRAWING: Figure 1

Description

The present invention relates to a railway vehicle, and more particularly to a railway vehicle capable of improving the degree of freedom in designing a ceiling structure.

Railroad vehicles with ducts on the ceiling side of guest rooms are known. For example, Patent Document 1 describes a technique for opening and closing the lower surface of a duct with an inspection lid. According to this technology, maintenance (inspection and cleaning) inside the duct can be performed from the passenger compartment side by opening the inspection lid.

Japanese Unexamined Patent Publication No. 2005-138638 (for example, paragraphs 0020 to 0023, FIGS. 1 and 2)

However, in the above-mentioned conventional technique, since the air outlet for blowing the air-conditioning air to the guest room side and the panel opening (opening of the lower panel) for performing maintenance in the duct are separately provided, the air is blown. Increased space for placing outlets and panel openings. Therefore, there is a problem that the degree of freedom in designing the ceiling structure is lowered because the arrangement position of other members is restricted.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a railway vehicle capable of improving the degree of freedom in designing a ceiling structure.

In order to achieve this object, the railcar of the present invention has a duct opening formed on the lower surface and extends in the front-rear direction of the vehicle on the ceiling side of the passenger compartment, and a position facing the duct opening. A panel having a panel opening formed in the duct and covering the lower surface side of the duct, and an inspection lid for opening and closing the panel opening are provided, and the inspection lid faces the duct opening. It is provided with an outlet formed at the position.

According to the railroad vehicle according to claim 1, since the inspection lid includes an air outlet formed at a position facing the duct opening, the conditioned air sent from the inside of the duct to the duct opening is blown by the inspection lid. It is blown out toward the guest room side through the exit. That is, by forming the air outlet on the inspection lid that covers the panel opening, the panel opening and the air outlet can be arranged at the overlapping position, so that the space for arranging the panel opening and the air outlet can be reduced. Therefore, it is possible to suppress the occurrence of restrictions on the arrangement positions of other members, which has the effect of improving the degree of freedom in designing the ceiling structure.

According to the railway vehicle according to claim 2, in addition to the effects of the railway vehicle according to claim 1, the following effects are exhibited. Since a cushioning material having a predetermined flexibility is provided between the lower surface of the duct and the inspection lid, the contact between the duct and the inspection lid due to vibration during vehicle travel can be alleviated by the cushioning material. Since the cushioning materials are arranged in pairs with a space between the duct opening and the air outlet, the airtight state between the duct opening and the air outlet can be enhanced by the cushioning material. That is, there is an effect that the function of relaxing the contact between the duct and the inspection lid and the function of ensuring the airtightness between the duct opening and the air outlet can be combined as the cushioning material.

According to the railway vehicle according to claim 3, in addition to the effects of the railway vehicle according to claim 2, the following effects are exhibited. An air conditioning plate that sends out air conditioning air passing through the inside of the duct toward the duct opening side, a fastening means that fastens and fixes the air conditioning plate to the lower surface of the duct, and a heat insulating material that surrounds the fastening means on the lower surface side of the duct. , And the cushioning material is brought into close contact with the lower surface of the heat insulating material, so that the fastening means is surrounded by the heat insulating material and the cushioning material. Thereby, the heat insulating material and the cushioning material can prevent the air-conditioning air sent out to the duct opening side by the air conditioning plate from being blown to the fastening means. Therefore, since the fastening means can be insulated from the air-conditioning wind, there is an effect that dew condensation can be suppressed on the fastening means.

According to the railway vehicle according to claim 4, in addition to the effect of the railway vehicle according to any one of claims 1 to 3, the following effects are exhibited. The panel is arranged below one end side of the inspection lid and is provided with a lower regulation piece that regulates the downward displacement of the inspection lid, and one end side of the inspection lid is slidable with respect to the lower regulation piece. The end side is detachably fixed to the panel. As a result, the fixed state between the panel and the other end side of the inspection lid is released, and the inspection lid is easily removed from the panel by pulling out while sliding one end side of the inspection lid on the upper surface side of the lower regulation piece (panel opening). The part can be opened).

When attaching the inspection lid to the panel (closing the panel opening), insert the inspection lid while sliding it from the panel opening toward the upper surface side of the lower regulation piece, and insert the other end of the inspection lid. The side may be fixed to the panel. That is, when attaching / detaching the inspection lid to / from the panel, it is possible to eliminate the work of fixing one end side of the inspection lid to the panel (lower regulation piece) and the work of releasing the fixing, so that the inspection lid can be attached / detached to / from the panel. It has the effect of improving workability.

According to the railway vehicle according to claim 5, in addition to the effects of the railway vehicle according to claim 4, the following effects are exhibited. The panel is provided above the lower regulation piece at a predetermined interval and has an upper regulation piece protruding toward the panel opening side, and one end side of the inspection lid is between the lower regulation piece and the upper regulation piece. Since it is inserted, it is possible to regulate the displacement of one end side of the inspection lid in the vertical direction by the lower regulation piece and the upper regulation piece in the closed state in which the inspection lid closes the panel opening. Therefore, even when one end side of the inspection lid is slidable (non-fixed) with respect to the lower regulation piece, the effect of suppressing the rattling of the inspection lid between the lower regulation piece and the upper regulation piece facing each other can be suppressed. is there.

On the other hand, when attaching the inspection lid to the panel, it is necessary to insert one end side of the inspection lid between the lower regulation piece and the upper regulation piece, but the upper regulation piece is closer to the panel opening side than the lower regulation piece. Since it is formed so as to protrude, the inspection lid can be easily inserted between the lower regulation piece and the upper regulation piece by sliding one end side of the inspection lid along the lower surface of the upper regulation piece. Therefore, there is an effect that the workability of attaching the inspection lid can be improved.

According to the railway vehicle according to claim 6, in addition to the effects of the railway vehicle according to claim 5, the following effects are exhibited. A plurality of upper regulation pieces are arranged at the edge of the panel along the panel opening at predetermined intervals, and the inspection lid protrudes from the edge on one end side of the inspection lid and is inserted between the upper regulation pieces. It has an insertion part. As a result, by inserting one end side of the inspection lid between the lower regulation piece and the upper regulation piece while passing the insertion part between the upper regulation pieces, the mounting position of the inspection lid with respect to the panel (relative position in the front-rear direction). ) Can be roughly positioned. Therefore, there is an effect that the workability of attaching the inspection lid can be improved.

According to the railway vehicle according to claim 7, in addition to the effect of the railway vehicle according to claim 5 or 6, the following effects are exhibited. Since the inspection lid is provided with an urging means for urging the inspection lid upward or downward, one end side of the inspection lid can be pressed against the lower regulation piece or the upper regulation piece by the urging force of the urging means. This has the effect of suppressing rattling of the inspection lid between the lower regulation piece and the upper regulation piece facing each other.

According to the railway vehicle according to claim 8, in addition to the effect of the railway vehicle according to any one of claims 1 to 7, the following effects are exhibited. Since the opening size of the panel opening is made larger than the opening size of the duct opening, access to the inside of the duct through the panel opening can be easily performed. Therefore, there is an effect that the workability of maintenance in the duct can be improved.

According to the railway vehicle according to claim 9, in addition to the effects of the railway vehicle according to claim 8, the following effects are exhibited. The duct is arranged on the side of the center of the ceiling in the left-right direction of the vehicle, and the end of the panel opening on the center side of the vehicle in the left-right direction of the panel is located on the center side of the ceiling in the left-right direction of the vehicle. When performing maintenance inside the duct from the center side of the vehicle in the left-right direction of the passenger compartment, it is possible to easily access the inside of the duct through the panel opening. Therefore, there is an effect that the workability of maintenance in the duct can be improved.

According to the railway vehicle according to claim 10, in addition to the effect of the railway vehicle according to any one of claims 1 to 9, the following effects are exhibited. Since it has an opening formed at a position facing the air outlet and is provided with an air outlet member fixed to the lower surface of the inspection lid, the conditioned air passing through the duct is the opening of the air outlet of the inspection lid and the air outlet member. It is blown out to the guest room side through. As a result, the air volume and the blowing position of the air-conditioning air blown out to the passenger compartment side can be adjusted by the opening of the air outlet member.

When a plurality of inspection lids are arranged in the front-rear direction of the vehicle at predetermined intervals, the design of the ceiling surface is likely to deteriorate due to the intermittent arrangement of the inspection lids. On the other hand, according to claim 10, the size of the air outlet member in the vehicle front-rear direction is larger than the size of the inspection lid, and the air outlet member extends along the vehicle front-rear direction over a plurality of inspection lid arrangement areas. Arranged. As a result, the air outlet member enhances the sense of unity between the plurality of inspection lids, and the air outlet member can form one line along the vehicle front-rear direction. Therefore, even when a plurality of inspection lids are intermittently arranged on the ceiling surface, there is an effect that the design of the ceiling surface can be improved.

(A) is a side view of a railroad vehicle according to an embodiment of the present invention, and (b) is a partially enlarged cross-sectional view of the railroad vehicle on the Ib-Ib line of FIG. 1 (a). It is a partially enlarged sectional view of the railroad vehicle which enlarged the II part of FIG. 1 (b). It is a partially enlarged sectional view of the railroad vehicle in the line III-III of FIG. (A) is a partially enlarged cross-sectional view of a railroad vehicle in which the IVa portion of FIG. 2 is enlarged, and (b) is a partially enlarged top view of a side ceiling panel and an inspection lid in the direction of arrow IVb of FIG. 4 (a). Is. (A) is a partially enlarged cross-sectional view of a railway vehicle showing a state in which the inspection lid is removed from the state of FIG. 2, and (b) is a state in which the inspection lid and the air conditioning plate are removed from the state of FIG. 5 (a). It is a partially enlarged sectional view of the railroad vehicle shown. It is a partially enlarged bottom view of the ceiling of a railroad vehicle in the direction of arrow VI of FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. First, the overall configuration of the railway vehicle 1 will be described with reference to FIG. 1 (a) is a side view of the railroad vehicle 1 according to the embodiment of the present invention, and FIG. 1 (b) is a partially enlarged cross-sectional view of the railroad vehicle 1 on the Ib-Ib line of FIG. 1 (a). is there. In addition, in FIG. 1B, in order to simplify the drawing, the illustration of a part of the railroad vehicle 1 (for example, the mounting structure of the luggage rack 8 and the hanger bar receiver 9) is omitted, and the railroad vehicle 1 is shown. The structure is schematically shown.

As shown in FIG. 1, the railroad vehicle 1 has a bogie 2 having a plurality of wheels 20 (see FIG. 1A), a structure 3 supported by the bogie 2, and an inner surface of the structure 3 on the passenger compartment R side. A panel 4 covering from (see FIG. 1B), a duct 5 provided between the panel 4 and the structure 3, an air conditioning plate 6 for controlling the flow of air conditioning air passing through the duct 5, and the air conditioning plate. An inspection lid 7 having an outlet 70 for blowing out the conditioned air controlled by 6 to the guest room R side is provided.

The structure 3 includes a pair of side structures 30 arranged at both ends in the left-right direction of the vehicle (left-right direction in FIG. 1B) and the upper ends of the pair of side structures 30 (upper ends in FIG. 1B). ) A roof structure 31 that connects the two to each other is provided. By covering the inner surfaces of the side structure 30 and the roof structure 31 with the plate-shaped panel 4, the space of the guest room R surrounded by the panel 4 is formed. That is, the panel 4 constitutes the wall surface and the ceiling surface of the guest room R.

The panel 4 includes a pair of left and right side panels (not shown) covering the inner surface of the side structure 30, a pair of left and right side ceiling panels 4a connected to the upper ends of each of the pair of side panels, and a pair of side ceilings. A ceiling panel 4b arranged between the panels 4a is provided.

The side ceiling panel 4a is formed so as to extend upward from the upper end of the side panel (not shown) and to be curved toward the center side in the left-right direction (right side of FIG. 1B) of the vehicle. The lower end of the side ceiling panel 4a is connected to the side structure 30 via the metal fitting M1, and the upper end of the side ceiling panel 4a (the end on the vehicle center side in the left-right direction) is connected to the roof structure 31 via the metal fitting M2. As a result, the inner surface of the upper end side of the side structure 30 and the inner surface of both ends of the roof structure 31 in the left-right direction (left side of FIG. 1B) are covered by the side ceiling panel 4a.

The left and right ends of the ceiling panel 4b are connected to the roof structure 31 via metal fittings M2, and the inner surface of the roof structure 31 on the left-right central side is covered by the ceiling panel 4b.

The side ceiling panel 4a is provided between the side structure 30 and the roof structure 31 at a predetermined distance, and the duct 5 is arranged in the space between the lower surface of the roof structure 31 and the upper surface of the side ceiling panel 4a. Will be done. The duct 5 is an air passage for supplying the air-conditioning air sent from the air conditioner (not shown) to each part of the cabin R extending in the front-rear direction. The flow of air-conditioning air passing through the duct 5 is rectified by the air conditioning plate 6, and is blown out to the guest room R side through the air outlet 70 of the inspection lid 7.

The inspection lid 7 is detachably provided in the panel opening 40 (see FIG. 2 or 5) of the side ceiling panel 4a, and by removing the inspection lid 7 from the side ceiling panel 4a, a duct is passed through the panel opening 40. Maintenance (inspection and cleaning) of the inside of 5 and the air conditioning plate 6 can be performed.

A luggage rack 8 is provided below the inspection lid 7, and a hanging bar receiver 9 is provided on the left-right central side of the vehicle with respect to the inspection lid 7. The luggage rack 8 is connected to the side structure 30 via a metal fitting (not shown), and is provided so as to project from the lower end portion of the side ceiling panel 4a toward the passenger compartment R side.

The hanging bar receiver 9 is connected to the roof structure 31 via the metal fitting M2, and is provided so as to project from between the side ceiling panel 4a and the ceiling panel 4b toward the guest room R side. The hanging hand rod receiver 9 projects from the metal fitting M2 so as to be curved toward the center side in the left-right direction of the vehicle, and the hanging hand rod 90 extending in the front-rear direction is fixed to the protruding tip of the hanging hand rod receiver 9. Although not shown, a plurality of hanging straps are hung on the hanging strap 90.

Next, the detailed configuration of the ceiling structure of the railway vehicle 1 will be described with reference to FIGS. 2 and 3. FIG. 2 is a partially enlarged cross-sectional view of the railroad vehicle 1 in which the II portion of FIG. 1B is enlarged, and FIG. 3 is a partially enlarged cross-sectional view of the railroad vehicle 1 on lines III-III of FIG. In FIG. 3, in order to facilitate understanding, dot-shaped hatching is provided on the side surface of the heat insulating material 63 excluding the region where the through hole 63a is formed and the side surface of the cushioning material 71.

As shown in FIGS. 2 and 3, the duct 5 is formed in a square tubular shape and extends along the front-rear direction (the left-right direction in FIG. 3). A duct opening 50 for blowing air-conditioning air toward the guest room R side is formed on the lower surface of the duct 5.

The duct opening 50 is a rectangular opening that is long in the front-rear direction, and a plurality of air conditioning plates 6 are fixed to the duct opening 50 (see FIG. 3). Although not shown, the duct 5 is formed with a plurality of duct openings 50 arranged side by side in the front-rear direction.

The air conditioning plate 6 includes a main body 60 fixed to the lower surface of the duct 5 and an air conditioning 61 connected to the main body 60. The main body 60 is formed in the shape of a rectangular plate long to the left and right, and both left and right ends of the main body 60 are fastened to the duct 5 by bolts B1 on both left and right sides of the duct opening 50 (near the duct opening 50). It is fixed. That is, the main body 60 is provided so as to be bridged over the duct opening 50.

The air conditioning portion 61 is formed by making a U-shaped notch in the plate-shaped main body portion 60 and bending it. Therefore, the air conditioning portion 61 is inclined upward from the main body portion 60 toward the rear side of the vehicle (left side in FIG. 3), and a rectangular through hole 62 is formed in the main body portion 60 on the lower side of the air conditioning portion 61. Will be done. A plurality of these air conditioning portions 61 and through holes 62 are provided side by side (intermittently) in the front-rear direction.

The air-conditioning air rectified by the air conditioning unit 61 is sent downward through the duct opening 50 and the through hole 62 of the air conditioning plate 6. A panel opening 40 (see FIG. 2) of the side ceiling panel 4a is formed at a position (below the duct opening 50) facing the duct opening 50 (through hole 62 of the air conditioning plate 6) in the vertical direction. The panel opening 40 is a rectangular opening that is long in the front-rear direction, and an inspection lid 7 is provided in the panel opening 40 so as to be openable and closable (see FIG. 5 for a state in which the panel opening 40 is open).

An outlet 70 is formed in the center of the inspection lid 7 in the left-right direction (left-right direction in FIG. 2), and a plurality of outlets 70 are provided side by side on one inspection lid 7 (see FIG. 3). The plurality of air outlets 70 are provided at positions facing the duct opening 50 (air conditioning plate 6) vertically, and the conditioned air sent downward from the air conditioning plate 6 through the duct opening 50 is the inspection lid 7. It is blown out to the guest room R side through the air outlet 70 and through the opening 100 of the air outlet member 10 described later.

By forming the air outlet 70 in the inspection lid 7 that opens and closes the panel opening 40 of the side ceiling panel 4a in this way, the panel opening 40 and the air outlet 70 can be arranged at the overlapping position. As a result, the space for arranging the panel opening 40 and the air outlet 70 can be reduced, so that restrictions on the arrangement positions of other members can be suppressed. Therefore, the degree of freedom in designing the ceiling structure of the railway vehicle 1 can be improved.

Further, by arranging the side ceiling panel 4a and the inspection lid 7 below the duct 5 at a predetermined interval (for example, 20 to 30 mm), for example, the side ceiling panel 4a and the inspection lid 7 are close to the duct 5. It is possible to prevent the side ceiling panel 4a and the inspection lid 7 from coming into contact with the duct 5 due to vibration during traveling. Therefore, it is possible to suppress the generation of abnormal noise due to such contact.

The air conditioning plate 6 is fastened and fixed to the lower surface of the duct 5 by the bolt B1, but the head of the bolt B1 is prevented from being blown to the head of the bolt B1 by the air conditioning air sent downward from the air conditioning plate 6. Is surrounded by a heat insulating material 63. The heat insulating material 63 is adhered over substantially the entire lower surface of the lower surface of the main body 60 of the air conditioning plate 6, but in FIGS. 1, 2, and 5, the heat insulating material 63 is extended in the front-rear direction in order to simplify the drawings. Only illustrated. A through hole 63a is formed in the heat insulating material 63 corresponding to the arrangement position of the bolt B1, and an inspection lid is formed on the lower surface of the heat insulating material 63 with the head of the bolt B1 accommodated in the through hole 63a. The cushioning material 71 of 7 is brought into close contact with the material 71.

The cushioning material 71 is adhered to the upper surface of the inspection lid 7, and the cushioning material 71 is interposed between the heat insulating material 63 (lower surface of the duct 5) and the inspection lid 7, so that the cushioning material 71 is moved upward of the inspection lid 7. The displacement is regulated by the cushioning material 71. Since the cushioning material 71 is formed by using a material having a predetermined flexibility (elastic material such as sponge, rubber, or thermoplastic elastomer), the cushioning material prevents contact between the duct 5 and the inspection lid 7 due to vibration during traveling. It can be alleviated by 71.

The cushioning materials 71 are provided in pairs on the left and right sides of the inspection lid 7 with the outlet 70 in between (near the outlet 70), and the pair of cushioning materials 71 are provided at positions where they overlap with the pair of left and right heat insulating materials 63. Be done. That is, since the heat insulating material 63 and the cushioning material 71 are provided in pairs on the left and right with the space between the duct opening 50 and the air outlet 70 interposed therebetween, the airtight state between the duct opening 50 and the air outlet 70 is provided. Can be enhanced by the heat insulating material 63 and the cushioning material 71.

Therefore, even when the duct 5 and the inspection lid 7 (side ceiling panel 4a) are arranged vertically at a predetermined interval, the air conditioning air is efficiently blown from the duct opening 50 toward the air outlet 70 of the inspection lid 7. Can be sent out. As a result, the cushioning material 71 can have both a function of relaxing the contact between the duct 5 and the inspection lid 7 and a function of ensuring airtightness between the duct opening 50 and the air outlet 70. Therefore, the number of parts can be reduced as compared with the case where the members having such a function are separately provided.

Further, since the cushioning material 71 is in close contact with the entire lower surface of the heat insulating material 63, the head of the bolt B1 housed in the through hole 63a of the heat insulating material 63 can be surrounded by the heat insulating material 63 and the cushioning material 71. .. As a result, the heat insulating material 63 and the cushioning material 71 can prevent the air-conditioning air sent downward from the duct opening 50 from being blown to the head of the bolt B1. Therefore, it is possible to insulate the head of the bolt B1 against the air-conditioning wind and suppress the occurrence of dew condensation on the head of the bolt B1. Therefore, it is possible to prevent the moisture generated by such dew condensation from dripping on the passenger R side (dirt adheres to the seats and passengers' clothes).

Further, the cushioning material 71 is formed by using a material softer than the heat insulating material 63, and the lower end of the heat insulating material 63 projects downward from the head (lower end) of the bolt B1 (heat insulating from the head of the bolt B1). (The thickness dimension of the material 63 is increased), so that the cushioning material 71 bites into the through hole 63a of the heat insulating material 63 and is easily deformed. Therefore, since the airtightness can be improved by the close contact between the heat insulating material 63 and the cushioning material 71, the head of the bolt B1 can be more effectively heat-insulated against the air-conditioning wind.

Since the heat insulating material 63 and the cushioning material 71 are extended in the front-rear direction (left-right direction in FIG. 3), the airtight state between the duct opening 50 and the air outlet 70 can be improved over the extending area. it can. However, due to poor adhesion between the heat insulating material 63 and the cushioning material 71, a slight amount of air conditioning air may leak through the gap between the heat insulating material 63 and the cushioning material 71. It is prevented by the cushioning material 41 (see FIG. 2) and the fixing portion 42 of the side ceiling panel 4a.

The cushioning material 41 is formed by using a material having a predetermined flexibility (an elastic material such as a sponge, rubber, or a thermoplastic elastomer), and extends in the front-rear direction. The cushioning material 41 is brought into close contact with the lower surface of the duct 5 and the upper surface of the side ceiling panel 4a at both left and right ends (left side in FIG. 2) of the vehicle with respect to the inspection lid 7.

As a result, even if the heat insulating material 63 and the cushioning material 71 have poor adhesion, the cushioning material 41 prevents the air-conditioning air from flowing toward the side structure 30 (see FIG. 1), and dew condensation occurs on the side structure 30. It can be suppressed from occurring. Therefore, it is possible to prevent the moisture generated by the dew condensation from dripping onto various wirings (those arranged between the side structure 30 and the panel 4) and causing electric leakage or the like.

Further, the fixing portion 42 is a portion protruding upward from the end portion of the side ceiling panel 4a on the left-right central side (right side in FIG. 2) of the vehicle with respect to the inspection lid 7, and is connected to the metal fitting M2. The fixing portion 42 also suppresses the airtight leakage of the air-conditioning air.

Next, the attachment structure of the inspection lid 7 to the side ceiling panel 4a will be described with reference to FIGS. 2 and 4. FIG. 4A is a partially enlarged cross-sectional view of the railway vehicle 1 in which the IVa portion of FIG. 2 is enlarged, and FIG. 4B shows the side ceiling panel 4a and the inspection in the direction of arrow IVb of FIG. 4A. It is a partially enlarged top view of the lid 7. In the following description, a state in which the panel opening 40 is closed by the inspection lid 7 will be defined as a “closed state”. Further, the end of the inspection lid 7 on the center side in the left-right direction of the vehicle (the end on the right side in FIG. 2) is referred to as "one end of the inspection lid 7", and the inspection lid 7 on both ends in the left-right direction (side of the vehicle) of the vehicle. The end portion (the end portion on the left side of FIG. 2) will be defined as “the other end of the inspection lid 7” and will be described.

As shown in FIGS. 2 and 4, the side ceiling panel 4a includes a lower regulation piece 43 and an upper regulation piece 44 that regulate the vertical displacement of one end side of the inspection lid 7 in the closed state. A sandwiched portion 72 having a partially reduced plate thickness is formed on one end side of the inspection lid 7, and the sandwiched portion 72 is sandwiched between the lower regulation piece 43 and the upper regulation piece 44. That is, the sandwiched portion 72 is inserted into the space having a U-shaped cross section formed by the lower regulation piece 43 and the upper regulation piece 44 (the sandwiched portion 72 is not fixed to the lower regulation piece 43 and the upper regulation piece 44). Therefore, the sandwiched portion 72 of the inspection lid 7 can slide left and right between the lower regulation piece 43 and the upper regulation piece 44 facing each other.

The upper regulation piece 44 is formed so as to project toward the panel opening 40 side (the other end side of the inspection lid 7) with respect to the lower regulation piece 43, and a downwardly projecting protrusion 44a is formed at the tip of the upper regulation piece 44. Will be done. The protruding portion 44a is in contact with the upper surface of the inspection lid 7 on one end side in the closed state, and the portion of the upper regulation piece 44 on the proximal end side of the protruding portion 44a is the upper surface of the inspection lid 7 on the one end side in the closed state. It is arranged above the (held portion 72) at a predetermined interval (for example, 1 to 3 mm).

The lower regulation piece 43 is continuously formed in the front-rear direction over the formation region of the panel opening 40, while the upper regulation piece 44 is provided in a pair in the front-rear direction at a predetermined interval (see FIG. 4B). .. A leaf spring 73 is fixed to the upper surface of the inspection lid 7 on one end side, and the leaf spring 73 is inserted between the pair of upper regulation pieces 44 facing each other (see FIG. 4B).

Although not shown, if a pair of upper regulation pieces 44 are combined as one set, a plurality of sets of upper regulation pieces 44 are provided side by side in the front-rear direction, and leaf springs are provided at positions that can be inserted into each of the plurality of sets of upper regulation pieces 44. 73 is provided.

The leaf spring 73 includes a linear flat portion 73a extending to the left and right, a first curved portion 73b connected to one end of the flat portion 73a (the right end in FIG. 4A), and the first curved portion thereof. It is a flat thin leaf spring including a second curved portion 73c connected to one end of the 73b, and each portion is formed in a flat plate shape. The first curved portion 73b is formed in an upwardly convex curved shape, and the second curved portion 73c is formed in a downwardly convex curved shape so as to be continuous with the curved shape of the first curved portion 73b. That is, the tip end side of the leaf spring 73 is formed in an S shape by the first curved portion 73b and the second curved portion 73c.

The flat portion 73a (base end of the leaf spring 73) of the leaf spring 73 is fixed to the upper surface of the inspection lid 7 by the bolt B2 (see FIG. 4B), and the side ceiling panel is closed when the lower surface of the second curved portion 73c is closed. It comes into contact with the upper surface of 4a (the base end side of the upper regulation piece 44).

By pressing the lower surface of the second curved portion 73c of the leaf spring 73 against the upper surface of the side ceiling panel 4a, the sandwiched portion 72 of the inspection lid 7 is lifted toward the upper regulation piece 44 (the inspection lid with the protruding portion 44a as a fulcrum). An urging force (which rotates one end side of 7) is applied. By this urging force, it is possible to suppress the rattling of the inspection lid 7 between the lower regulation piece 43 and the upper regulation piece 44 (protruding portion 44a) facing each other.

The sandwiched portion 72 of the inspection lid 7 is configured to be removable between the lower regulation piece 43 and the upper regulation piece 44, while the other end side of the inspection lid 7 is detachably fixed to the side ceiling panel 4a. (See FIG. 2). Specifically, the metal fitting M3 protruding toward the panel opening 40 is fixed to the upper surface of the edge (edge along the panel opening 40) of the side ceiling panel 4a on the other end side of the inspection lid 7. ..

By fixing the other end side of the inspection lid 7 to the lower surface of the metal fitting M3 with the bolt B3 while the one end side of the inspection lid 7 is inserted between the lower regulation piece 43 and the upper regulation piece 44 (protruding portion 44a). , The panel opening 40 is closed by the inspection lid 7. A plurality of fixing portions of the inspection lid 7 by the bolts B3 are provided in the front and rear (see FIG. 6), and the poster rail 45 is fixed to the lower surface of the side ceiling panel 4a so as to cover each of the plurality of bolts B3 from below. Ru.

Next, a method of attaching / detaching the inspection lid 7 to / from the side ceiling panel 4a will be described with reference to FIGS. 2 and 5. 5 (a) is a partially enlarged cross-sectional view of the railroad vehicle 1 showing a state in which the inspection lid 7 is removed from the state of FIG. 2, and FIG. 5 (b) shows the inspection lid 7 and the inspection lid 7 from the state of FIG. 5 (a). It is a partially enlarged sectional view of the railroad vehicle 1 which shows the state which removed the wind control plate 6.

As shown in FIGS. 2 and 5, when removing the inspection lid 7 from the side ceiling panel 4a, first, after removing the poster rail 45 covering the other end side (the left end of FIG. 2) of the inspection lid 7. The fastening state between the bolt B3 and the metal fitting M3 is released. As a result, the fixed state of the other end side of the inspection lid 7 with respect to the side ceiling panel 4a is released (see FIG. 5A).

Since the vertical facing distance between the lower regulation piece 43 and the upper regulation piece 44 (the portion on the base end side of the protruding portion 44a) is larger than the plate thickness of the sandwiched portion 72 of the inspection lid 7, the inspection lid In the state where the fixed state on the other end side of 7 is released, one end side of the inspection lid 7 can rotate between the lower regulation piece 43 and the upper regulation piece 44 facing each other. That is, when the fixed state between the side ceiling panel 4a and the other end side of the inspection lid 7 is released, the inspection lid 7 rotates by its own weight with the tip of the lower regulation piece 43 as the center of rotation, and the holding portion 72 of the inspection lid 7 is held. Is in contact with the lower surface of the upper regulation piece 44.

At this time, since one end side (held portion 72) of the inspection lid 7 is urged upward by the elastic force of the leaf spring 73, the sandwiched portion 72 of the inspection lid 7 is urged upward by the urging force on the upper regulation piece 44 side. (The upper regulation piece 44 is sandwiched between the held portion 72 and the leaf spring 73). As a result, it is possible to easily maintain the state in which the sandwiched portion 72 is caught between the lower regulation piece 43 and the upper regulation piece 44, so that the weight of the inspection lid 7 allows the lower regulation piece 4 and the upper regulation piece 44 to be separated from each other. It is possible to prevent the sandwiched portion 72 from falling off. Therefore, when releasing the fixed state on the other end side of the inspection lid 7, it is not necessary to support the sandwiched portion 72 so as not to fall out from between the lower regulation piece 4 and the upper regulation piece 44 facing each other. Workability when removing from the side ceiling panel 4a can be improved.

In the present embodiment, the urging force of the leaf spring 73 suppresses the pinched portion 72 from coming off. However, for example, the leaf spring 73 is omitted so that the held portion 72 does not come off due to the weight of the inspection lid 7. The protruding dimension of the sandwiched portion 72 (lower regulation piece 43 and upper regulation piece 44) may be made longer so as to have the insertion length of the above.

Next, one end side (held portion 72) of the inspection lid 7 in a state of being caught between the lower regulation piece 43 and the upper regulation piece 44 is pulled out from the opposite space between the lower regulation piece 43 and the upper regulation piece 44. Remove the inspection lid 7 from the side ceiling panel 4a.

As described above, in the present embodiment, the sandwiched portion 72 on one end side of the inspection lid 7 is slidable with respect to the lower regulation piece 43 and the upper regulation piece 44 (one end side of the inspection lid 7 is not on the side ceiling panel 4a). The other end side of the inspection lid 7 is detachably fixed to the side ceiling panel 4a. As a result, the fixed state between the side ceiling panel 4a and the other end side of the inspection lid 7 is released, and the sandwiched portion 72 of the inspection lid 7 is slid on the upper surface side of the lower regulation piece 43 (the upper surface side of the lower regulation piece 43). The inspection lid 7 can be easily removed from the side ceiling panel 4a by pulling it out from the side ceiling panel 4a. Therefore, the workability of removing the inspection lid 7 can be improved. Further, since the entire inspection lid 7 can be removed from the side ceiling panel 4a, the inspection lid 7 can be easily replaced and the inspection lid 7 can be easily maintained.

By removing the inspection lid 7 and opening the panel opening 40, access to the air conditioning plate 6 (insertion of a cleaning tool or a hand) through the panel opening 40 becomes possible. Since the panel opening 40 is formed at a position vertically opposed to the air conditioning plate 6 (the entire air conditioning plate 6 is arranged at a position vertically overlapping the panel opening 40 in the bottom view), the panel opening 40 is provided. Maintenance of the passed air conditioning plate 6 can be easily performed.

Since the air conditioning plate 6 is detachably fixed to the duct 5 (duct opening 50) by the bolt B1, the entire air conditioning plate 6 can be removed from the duct 5 by releasing the fixed state by the bolt B1. (See FIG. 5 (b)). As a result, maintenance of the air conditioning plate 6 can be easily performed.

By removing the air conditioning plate 6 and opening the duct opening 50, access to the inside of the duct 5 is possible through the panel opening 40 and the duct opening 50. Since the panel opening 40 is formed at a position vertically opposed to the duct opening 50 (the entire duct opening 50 is arranged at a position where the entire duct opening 50 is vertically overlapped with the panel opening 40 in the bottom view), the panel opening 40 is formed. Access to the inside of the duct 5 through the 40 can be easily performed. Therefore, the workability of maintenance in the duct 5 can be improved.

The actual opening size L2 in the left-right direction of the panel opening 40 (the distance between the tips of the metal fitting M3 and the upper regulation piece 44) is larger than the opening size L1 in the left-right direction of the duct opening 50 (see FIG. 5B). ) Has been increased. As a result, access to the inside of the duct 5 through the panel opening 40 can be easily performed, so that maintenance workability in the duct 5 can be improved.

Here, the duct 5 is arranged on the side side (both ends in the left-right direction of the vehicle) from the center of the ceiling surface of the passenger compartment R in the left-right direction, and the luggage rack 8 (see FIG. 1B) is below the duct 5. And seats are provided. Therefore, it is assumed that the worker extends his / her hand and cleaning equipment from the center side in the left-right direction (right side of FIG. 5B) of the guest room R for maintenance.

On the other hand, in the present embodiment, the end portion on the vehicle center side in the left-right direction of the panel opening 40 (the end portion on the right side in FIG. 5B) is on the vehicle center side in the left-right direction with respect to the duct opening 50 ( It is arranged on the right side of FIG. 5B). As a result, when the inside of the duct 5 is maintained from the center side in the left-right direction of the guest room R, the inside of the duct 5 can be easily accessed through the panel opening 40. That is, since it is possible to easily insert a hand or a cleaning tool into the duct opening 50 through the panel opening 40 during maintenance, the workability of maintenance in the duct 5 can be improved.

When the inspection lid 7 is attached to the side ceiling panel 4a, the air conditioning plate 6 and the inspection lid 7 described above may be removed in the reverse procedure. Specifically, when the inspection lid 7 is attached to the side ceiling panel 4a, first, the sandwiched portion 72 of the inspection lid 7 is inserted between the lower regulation piece 43 and the upper regulation piece 44 (the lower regulation piece 43). Slide to the top side). In the inserted state, the other end side of the inspection lid 7 is lifted and the other end side of the inspection lid 7 is fixed to the metal fitting M3.

In this way, the sandwiched portion 72 on one end side of the inspection lid 7 is slidable with respect to the lower regulation piece 43, and the other end side of the inspection lid 7 is fixed to the side ceiling panel 4a via the metal fitting M3. When installing the inspection lid 7, it is possible to eliminate the work of fixing the sandwiched portion 72 of the inspection lid 7 to the side ceiling panel 4a (lower regulation piece 43). Therefore, workability when attaching the inspection lid 7 to the side ceiling panel 4a can be improved.

Further, since the upper regulation piece 44 protrudes longer toward the panel opening 40 than the lower regulation piece 43, when the upper regulation piece 44 is inserted between the lower regulation piece 43 and the upper regulation piece 44 facing each other, the upper regulation piece 44 The sandwiched portion 72 of the inspection lid 7 can be slid along the lower surface. Therefore, since the sandwiched portion 72 can be easily inserted between the lower regulation piece 43 and the upper regulation piece 44 facing each other, the workability when the inspection lid 7 is attached to the side ceiling panel 4a can be improved.

Since the vertical distance between the lower regulation piece 43 and the protruding portion 44a of the upper regulation piece 44 is set to the same dimension as the plate thickness of the sandwiched portion 72, the lower regulation piece 72 is downwardly regulated by the sandwiched portion 72 in the closed state. The piece 43 is brought into contact with the upper surface of the inspection lid 7, and the protruding portion 44a of the upper regulation piece 44 is brought into contact with the upper surface of the inspection lid 7. As a result, even when the sandwiched portion 72 of the inspection lid 7 is slidable (non-fixed) with respect to the lower regulation piece 43 and the upper regulation piece 44, the lower regulation piece 43 and the upper regulation piece 44 face each other. The rattling of the inspection lid 7 between them can be suppressed.

Further, when the sandwiched portion 72 rotates between the lower regulation piece 43 and the upper regulation piece 44 when the inspection lid 7 is attached, the tip of the leaf spring 73 (the lower surface of the second curved portion 73c) is the upper regulation piece 44. Since it is in contact with the upper surface, the leaf spring 73 elastically deforms with the rotation. Due to this elastic deformation, an urging force is generated that pushes one end side of the inspection lid 7 toward the upper regulation piece 44, so that the rattling of the inspection lid 7 between the lower regulation piece 43 and the upper regulation piece 44 is more effectively suppressed. it can.

Here, since the panel opening 40 and the inspection lid 7 are formed long in the front-rear direction (see FIG. 6), it takes a relatively long time to adjust the relative positions of the panel opening 40 and the inspection lid 7 in the front-rear direction. In the present embodiment, the relative position can be easily adjusted by the upper regulation piece 44 and the leaf spring 73.

That is, as described above, the upper regulation pieces 44 are provided in pairs at a predetermined distance in the front-rear direction (see FIG. 4B), and the pair of upper regulation pieces 44 are more panels than the lower regulation piece 43. It is formed so as to project toward the opening 40 side. Therefore, when the operator looks up at the panel opening 40 with the inspection lid 7 removed from below (when looking up from the lower side of FIG. 5B), the lower regulation piece 43 to the panel opening 40 side. A pair of upper regulation pieces 44 protruding from the lid can be visually recognized.

Further, a part of the first curved portion 73b on the tip side of the leaf spring 73 and the second curved portion 73c (see FIG. 4B) also protrude from the edge portion on one end side of the inspection lid 7, so that the inspection is lifted. When the operator looks up at the lid 7 from below (when the inspection lid 7 is viewed from the bottom), the leaf spring 73 protruding from the inspection lid 7 can be visually recognized. Further, the front-rear facing distance between the pair of upper regulation pieces 44 (see FIG. 4B) is set to be slightly larger (for example, 10 mm) than the front-rear direction dimension of the leaf spring 73.

As a result, the side ceiling panel is inserted by inserting the sandwiched portion 72 of the inspection lid 7 between the lower regulation piece 43 and the upper regulation piece 44 while passing the leaf spring 73 between the pair of upper regulation pieces 44. The mounting position of the inspection lid 7 with respect to 4a (the relative position of the inspection lid 7 with respect to the panel opening 40 in the front-rear direction) can be roughly positioned. Therefore, even when the panel opening 40 and the inspection lid 7 are formed long in the front-rear direction, the workability of attaching the inspection lid 7 can be improved.

Further, the function as an "insertion portion" for performing such positioning and the rattling of the inspection lid 7 (held portion 72) between the above-mentioned lower regulation piece 43 and the upper regulation piece 44 facing each other are suppressed. The leaf spring 73 can also be used for this function. Therefore, the number of parts can be reduced as compared with the case where parts having such a function are separately provided.

Further, the tip portion of the leaf spring 73 is formed in an S shape by the first curved portion 73b and the second curved portion 73c (see FIG. 4B), and the second curved portion 73c is formed in a downwardly convex curved shape. Therefore, when the leaf spring 73 is inserted between the pair of upper restricting pieces 44, the lower surface of the second curved portion 73c is slid on the upper edge of the upper surface of the side ceiling panel 4a while the lower surface of the side ceiling panel 4a is slid. The leaf spring 73 can be inserted toward the upper surface side. As a result, workability when attaching the inspection lid 7 to the side ceiling panel 4a can be improved.

Next, the air outlet member 10 fixed to the inspection lid 7 will be described with reference to FIGS. 2 and 6. FIG. 6 is a partially enlarged bottom view of the ceiling of the railway vehicle 1 in the direction of arrow VI in FIG. In addition, in FIG. 6, in order to simplify the drawing, only the main part of the ceiling of the railroad vehicle 1 is shown, and some of the illustrations such as the poster rail 45 (see FIG. 2) are omitted.

As shown in FIGS. 2 and 6, a plurality of side ceiling panels 4a are provided side by side in the front-rear direction (see FIG. 6), and one panel opening 40 is formed in each of the plurality of side ceiling panels 4a. To. The panel opening 40 is formed over substantially the entire length of the side ceiling panel 4a in the front-rear direction, but the panel opening 40 is not formed in a part of both front and rear ends of the side ceiling panel 4a. That is, a plurality of inspection lids 7 for closing the panel opening 40 are provided side by side (intermittently) in the front-rear direction.

When the inspection lid 7 is intermittently provided on the side ceiling panel 4a (ceiling surface), the design of the ceiling surface tends to deteriorate, but in the present embodiment, the design is improved by the air outlet member 10. Specifically, the air outlet member 10 is detachably fixed to the lower surface of the inspection lid 7 by a bolt B4, and the air outlet member 10 is provided so as to cover each of the inspection lids 7 arranged in the front-rear direction.

In other words, the size of the air outlet member 10 in the front-rear direction is made larger than the size of the inspection lid 7, and the air outlet members 10 are arranged side by side in the front-rear direction over the arrangement areas of the plurality of inspection lids 7. As a result, the sense of unity between the plurality of inspection lids 7 can be enhanced by the air outlet member 10, and one line along the front-rear direction can be formed on the ceiling surface by the air outlet member 10. Therefore, even when a plurality of inspection lids 7 are intermittently arranged on the ceiling surface, the design of the ceiling surface can be improved.

As described above, when the purpose is to enhance the design of the ceiling surface by the air outlet member 10, for example, it is possible to cover a plurality of inspection lids 7 with one air outlet member 10. However, in such a configuration, it is necessary to remove the plurality of inspection lids 7 from the side ceiling panel 4a at the same time while the outlet member 10 is fixed to the inspection lid 7. In other words, in order to remove only one inspection lid 7 out of the plurality of inspection lids 7 from the side ceiling panel 4a, it is necessary to remove the air outlet member 10 from the inspection lid 7 in advance.

On the other hand, in the present embodiment, one outlet member 10 is fixed to each of the inspection lids 7 arranged in the front-rear direction, and the plurality of outlet members 10 are the regions (panels) between the plurality of inspection lids 7. The openings 40 are abutted against each other in the non-formed region). More specifically, since the outlet members 10 are butted against each other at the joint portion between the plurality of side ceiling panels 4a, when one inspection lid 7 is removed from the side ceiling panel 4a, it is fixed to the other inspection lid 7. It is possible to prevent the air outlet member 10 from interfering with the air outlet member 10.

As a result, the inspection lid 7 can be removed from the side ceiling panel 4a with the air outlet member 10 fixed to the inspection lid 7. That is, when the inspection lid 7 is removed from the side ceiling panel 4a, it is not necessary to remove the air outlet member 10 from the inspection lid 7, so that the workability of removing the inspection lid 7 can be improved.

Further, since the air outlet members 10 are butted against each other at the joint portion between the side ceiling panels 4a, the seam between the side ceiling panels 4a and the seam between the air outlet members 10 can be arranged vertically on top of each other. As a result, the seams between the air outlet members 10 become less noticeable, so that the design of the ceiling surface can be improved.

Further, since both front and rear ends of the outlet member 10 are fixed to the side ceiling panel 4a (the region where the panel opening 40 is not formed) by the bolt B5, the end portion of the outlet member 10 is the side ceiling panel. It is possible to suppress the floating from 4a. As a result, it is possible to prevent a step from being generated at the abutting portion between the air outlet members 10, so that the design of the ceiling surface can be improved.

As described above, the inspection lid 7 with the air outlet member 10 attached can be removed from the side ceiling panel 4a. For example, the inspection lid 7 is inspected with the inspection lid 7 attached to the side ceiling panel 4a. It is also possible to remove the outlet member 10 from the lid 7. As a result, the air outlet member 10 can be easily replaced and maintained, and the air conditioning plate 6 can be accessed through the air outlet 70 of the inspection lid 7. That is, maintenance of the air outlet member 10 or the air conditioning plate 6 can be performed without removing the inspection lid 7 from the side ceiling panel 4a.

Further, the air outlet member 10 is formed with a pair of left and right openings 100 at positions facing the air outlet 70 (see FIG. 2) of the inspection lid 7 vertically, and the pair of openings 100 are formed in the left and right directions. The opening size of the air outlet 70 of the inspection lid 7 is set to be larger than the opening size of the inspection lid 7 (see FIG. 2). As a result, by removing the air outlet member 10 from the closed inspection lid 7, access to the air conditioning plate 6 through the air outlet 70 of the inspection lid 7 becomes easy. Therefore, the workability of maintenance of the air conditioning plate 6 can be improved. Further, by adjusting the formation position and the opening area of the opening 100, the air volume of the air-conditioning air blown out from the air outlet 70 can be adjusted.

Although the present invention has been described above based on the above-described embodiment, the present invention is not limited to the above-described embodiment, and it is easy to make various modifications and improvements within a range that does not deviate from the gist of the present invention. It can be inferred.

In the above embodiment, the case where the panel 4 (side ceiling panel 4a) and the duct 5 are arranged at a predetermined interval has been described, but the present invention is not necessarily limited to this. For example, the panel 4 (side ceiling panel 4a) may be directly fixed to the duct 5.

In the above embodiment, the case where the lower regulation piece 43 and the upper regulation piece 44 are formed on the side ceiling panel 4a has been described, but the present invention is not necessarily limited to this. For example, the upper regulation piece 44 may be omitted, and one end side (held portion 72) of the inspection lid 7 may be simply placed on the upper surface of the lower regulation piece 43. In this case, it is preferable to provide an urging means for urging one end side (held portion 72) of the inspection lid 7 downward. As a result, one end side (held portion 72) of the inspection lid 7 can be pressed against the lower regulation piece 43, so that the inspection lid 7 can be prevented from being lifted from the lower regulation piece 43.

In the above embodiment, the case where the upper regulation piece 44 is formed so as to project toward the panel opening 40 side (the other end side of the inspection lid 7) from the lower regulation piece 43 has been described, but the present invention is not necessarily limited to this. .. For example, the protrusion dimension of the upper regulation piece 44 toward the panel opening 40 may be the same as or shorter than that of the lower regulation piece 43. If at least one end side of the inspection lid 7 is configured to be insertable between the lower regulation piece 43 and the upper regulation piece 44, the lower regulation piece 43 and the upper regulation piece 44 prevent the one end side of the inspection lid 7 from being displaced up and down. Can be regulated.

In the above embodiment, the protrusion 44a is formed on the upper regulation piece 44 (the base end side of the upper regulation piece 44 is arranged above and below the sandwiched portion 72 of the inspection lid 7 at a predetermined distance), and the inspection lid 7 is attached and detached. Occasionally, the case where the sandwiched portion 72 is rotatable between the lower regulation piece 43 and the upper regulation piece 44 facing each other has been described, but the present invention is not necessarily limited to this.

For example, by omitting the protruding portion 44a of the upper regulation piece 44 and making the upper and lower facing distances of the lower regulation piece 43 and the upper regulation piece 44 the same as the plate thickness on one end side (holding portion 72) of the inspection lid 7. , One end side (held portion 72) of the inspection lid 7 may be slid non-rotatably between the lower regulation piece 43 and the upper regulation piece 44. In this case, pull out the inspection lid 7 from the lower regulation piece 43 and the upper regulation piece 44 between the other end of the inspection lid 7 and the edge of the panel opening 40 (slide the inspection lid 7 in the left-right direction). It suffices to provide a gap that can be used.

In the above embodiment, the case where the duct 5 is arranged on the side side of the center of the ceiling surface in the left-right direction has been described, but the present invention is not necessarily limited to this. For example, the duct 5 may be arranged on the center side in the left-right direction of the ceiling surface. That is, the arrangement position of the duct 5 is not limited, and the technical idea of the above embodiment can be applied to a railway vehicle in which an inspection lid is provided on a panel covering the duct.

In the above embodiment, the case where the opening dimension L2 of the panel opening 40 in the left-right direction is larger than the opening dimension L1 of the duct opening 50 has been described, but the present invention is not necessarily limited to this. For example, the opening dimension L2 in the left-right direction of the panel opening 40 may be the same as or smaller than the opening dimension L1 of the duct opening 50.

In the above embodiment, a case where one end side (held portion 72) of the inspection lid 7 is slidably configured between the lower regulation piece 43 and the upper regulation piece 44 (not fixed to the side ceiling panel 4a) is used. As explained, it is not necessarily limited to this. For example, one end side of the inspection lid 7 may be fixed to the side ceiling panel 4a with bolts or the like, or the inspection lid 7 may be pivotally supported by a hinge.

In the above embodiment, the case where the other end side of the inspection lid 7 is fixed to the side ceiling panel 4a (metal fitting M3) by the bolt B3 has been described, but the present invention is not necessarily limited to this. For example, a known fixing means (for example, a catch clip or the like) can be used for fixing the other end side of the inspection lid 7 to the side ceiling panel 4a.

In the above embodiment, the case where the cushioning material 71 is provided between the inspection lid 7 and the heat insulating material 63 has been described, but the present invention is not necessarily limited to this. For example, the cushioning material 71 may be omitted, or the cushioning material 71 may be provided at a position where it does not overlap with the heat insulating material 63 in the vertical direction so that the cushioning material 71 is directly adhered to the lower surface of the duct 5.

In the above embodiment, the case where one end side (held portion 72) of the inspection lid 7 is urged toward the upper regulation piece 44 side by the urging force of the leaf spring 73 has been described, but the present invention is not necessarily limited to this. .. For example, an elastic body (rubber, sponge, spring, etc.) is provided between the lower regulation piece 43 or the upper regulation piece 44 and one end side (holding portion 72) of the inspection lid 7, and one end side of the inspection lid 7 is moved upward or. It may be configured to be urged downward. Further, the leaf spring 73 may be omitted so that the cushioning material 71 is elastically deformed in the closed state, so that the inspection lid 7 is urged downward by the elastic force of the cushioning material 71.

In this way, by providing the urging means for urging one end side of the inspection lid 7 upward or downward, one end side of the inspection lid 7 can be pressed against the lower regulation piece 43 or the upper regulation piece 44 side. As a result, rattling of the inspection lid 7 between the lower regulation piece 43 and the upper regulation piece 44 facing each other can be suppressed.

In the above embodiment, the leaf spring 73 is inserted between the pair of upper regulation pieces 44 to position the mounting position of the inspection lid 7 with respect to the side ceiling panel 4a (that is, the leaf spring 73 is the “insertion portion””. (When the function is also used as), but it is not necessarily limited to this. For example, an insertion piece (insertion portion) that can be inserted between the pair of upper regulation pieces 44 may be integrally formed with the inspection lid 7.

In the above embodiment, the case where the outlet member 10 is configured separately from the inspection lid 7 has been described, but the present invention is not necessarily limited to this. For example, the outlet member 10 may be integrally formed with the inspection lid 7. Further, the outlet member 10 may be omitted.

In the above embodiment, the case where one air outlet member 10 is fixed to each of the plurality of inspection lids 7 has been described, but the present invention is not necessarily limited to this. For example, the front-rear direction dimension of the air outlet member 10 may be shortened, and a plurality of air outlet members 10 may be fixed to one inspection lid 7. Further, the front-rear direction dimension of the air outlet member 10 is lengthened, and one air outlet member 10 is fixed to the plurality of inspection lids 7 (each of the plurality of inspection lids 7 is covered with one air outlet member 10). But it's okay.

In the above embodiment, the case where a plurality of outlet members 10 are butted between the inspection lids 7 facing each other has been described, but the present invention is not necessarily limited to this. For example, the outlet members 10 may be butted against each other in the area where the inspection lid 7 is arranged.

In the above embodiment, the case where both ends of the air outlet member 10 in the front-rear direction are fixed to the side ceiling panel 4a has been described, but the present invention is not necessarily limited to this. For example, the outlet member 10 may be non-fixed to the side ceiling panel 4a (fixed only to the inspection lid 7). As a result, when removing the inspection lid 7 from the side ceiling panel 4a, it is possible to eliminate the work of releasing the fixed state between the side ceiling panel 4a and the air outlet member 10, so that the workability of removing the inspection lid 7 is improved.

1 Railroad vehicle 4a side ceiling panel (panel)
40 Panel opening 43 Lower regulation piece 44 Upper regulation piece 5 Duct 50 Duct opening 6 Air conditioning plate 63 Insulation material 7 Inspection lid 70 Air outlet 71 Cushioning material 73 Leaf spring (insertion part, urging means)
10 Outlet member 100 Opening B1 bolt (fastening means)
L1 Duct opening opening size L2 Panel opening opening size R Guest room

Claims (10)

The duct has a duct opening formed on the lower surface and extends in the front-rear direction of the vehicle on the ceiling side of the passenger compartment, and a panel opening formed at a position facing the duct opening. In a railroad vehicle provided with a panel covering the lower surface side and an inspection lid for opening and closing the panel opening.
The inspection lid is a railway vehicle including an air outlet formed at a position facing the duct opening. A cushioning material disposed between the lower surface of the duct and the inspection lid and having a predetermined flexibility is provided.
The railway vehicle according to claim 1, wherein the cushioning materials are arranged in a pair so as to sandwich a space between the duct opening and the air outlet. An air conditioning plate that sends out air-conditioning air that passes through the inside of the duct toward the duct opening side, a fastening means that fastens and fixes the air conditioning plate to the lower surface of the duct, and a peripheral portion of the fastening means on the lower surface side of the duct. With a surrounding insulation,
The railway vehicle according to claim 2, wherein the cushioning material is brought into close contact with the lower surface of the heat insulating material, so that the fastening means is surrounded by the heat insulating material and the cushioning material. The panel is provided below the one end side of the inspection lid and includes a lower regulating piece that regulates the downward displacement of the inspection lid.
The invention according to any one of claims 1 to 3, wherein one end side of the inspection lid is slidable with respect to the lower regulation piece, and the other end side of the inspection lid is detachably fixed to the panel. Railroad vehicle. The panel includes an upper regulation piece which is arranged above the lower regulation piece at a predetermined interval and projects toward the panel opening side.
One end side of the inspection lid is inserted between the lower regulation piece and the upper regulation piece.
The railway vehicle according to claim 4, wherein the upper regulation piece is formed so as to project toward the panel opening side of the lower regulation piece. A plurality of the upper regulation pieces are arranged at the edge of the panel along the panel opening at predetermined intervals.
The railway vehicle according to claim 5, wherein the inspection lid includes an insertion portion that protrudes from an edge portion on one end side of the inspection lid and is inserted between the upper regulation pieces. The railway vehicle according to claim 5 or 6, further comprising an urging means for urging the inspection lid upward or downward. The railway vehicle according to any one of claims 1 to 7, wherein the opening size of the panel opening is made larger than the opening size of the duct opening. The duct is arranged on the side of the ceiling from the center in the left-right direction of the vehicle.
The railway vehicle according to claim 8, wherein the end of the panel opening on the left-right center side of the vehicle is located closer to the center side of the ceiling in the left-right direction of the vehicle than the duct opening. An outlet member having an opening formed at a position facing the outlet and being fixed to the lower surface of the inspection lid is provided.
A plurality of the inspection lids are arranged in the front-rear direction of the vehicle at predetermined intervals.
The size of the air outlet member in the front-rear direction of the vehicle is made larger than the size of the inspection lid.
The railway vehicle according to any one of claims 1 to 9, wherein the air outlet member is arranged along the vehicle front-rear direction over the arrangement area of the plurality of inspection lids.

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