JP2020066260A - Light shielding device - Google Patents

Abstract

To realize weight reduction of a light shielding device.SOLUTION: A light shielding device 10 comprises: a pair of rail members which are arranged to face a window frame 50 so as to hold a side window therebetween; two end bar members 30 whose both ends are engaged with the pair of rail members so as to be movable along the pair of rail members; and a pleated sheet-like member 44 which is held by the two end bar members 30 therebetween. Therefore, when the two end bar members 30 are separated from each other, the expanded sheet-like member 44 can cover the side window, and when the two end bar members 30 are moved to one end side of the rail members, the sheet-like member 44 can be contracted between the two end bar members 30. Thus, since light shielding of the side window can be performed as needed without using a spring or the like for winding up the sheet-like member 44 or a member or the like for engaging the sheet-like member 44 with the rail members, weight reduction of the light shielding device 10 can be realized.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a side window shading device provided on a window frame of a vehicle body of a railway vehicle.

  Background Art A light shielding device such as a curtain or a blind is installed on a side window provided on a side surface of a railroad vehicle for shade. Among these, particularly in high-speed railway vehicles, a light-shielding device of a type that lowers the light-shielding sheet wound above the side window during use is often installed (see, for example, Patent Document 1). .

JP, 2001-227263, A

Here, since the above-described conventional type light-shielding device requires parts such as springs for winding up the light-shielding sheet, particularly in a high-speed railway vehicle in which weight reduction is required for further speedup. There is room for improvement, mainly in terms of weight.
The present invention has been made in view of the above problems, and an object of the present invention is to realize weight reduction of a light shielding device.

(Aspect of the invention)
The following aspects of the invention exemplify the constitution of the present invention, and are explained separately for each item in order to facilitate understanding of various constitutions of the present invention. Each section does not limit the technical scope of the present invention, while referring to the best mode for carrying out the invention, a part of the constituent elements of each section is replaced, deleted, or further The addition of the constituent elements of (5) is also included in the technical scope of the present invention.

  (1) A light shielding device for a side window provided in a window frame of a vehicle body of a railway vehicle, the pair of rails being arranged to face the window frame so as to sandwich the side window in a front view. A member and two end rod members that extend between the pair of rail members and that engage with the rail member such that both ends are movable along the pair of rail members, and the two end rods. A member holds the two end bar members, extends so as to connect between the pair of rail members, and the two end bar members extend along the pair of rail members at both ends of the rail member. A sheet-like member having a size that covers at least the side window together with or independently of the two end rod members in a state where the sheet-like member is separated from the two end rods. Pleated to form multiple folds parallel to the direction of extension of the member Shading device are (claim 1).

  The light-shielding device according to this section includes a pair of rail members, two end rod members, and a sheet-like member, and the pair of rail members are provided on a window frame provided with side windows, inside a vehicle body of a railway vehicle. When viewed from the front of the side window, they are arranged so as to face each other so as to sandwich the side window. That is, the pair of rail members are arranged parallel to each other, for example, along the vehicle body longitudinal direction or the vehicle body vertical direction. Each of the two end rod members extends between the pair of rail members, and both ends thereof engage with the rail member so as to be movable along the pair of rail members. That is, each end bar member is held by the pair of rail members with one end engaged with one rail member and the other end engaged with the other rail member. At this time, the one end and the other end of the end bar member and the rail member are engaged with each other in a state that the end bar member can move along the rail member, and the two end bar members are a pair of rail members. They are arranged in parallel with each other.

  On the other hand, the sheet-shaped member is not directly held by the rail member but is formed by the two end rod members arranged in parallel with each other between the pair of rail members as described above. Held between. The sheet-shaped member has a size that covers at least the side window together with the two end rod members or alone in a state where the two end rod members are separated along the pair of rail members to both ends of the rail member. Have That is, the sheet-like member connects a pair of rail members with a length in a direction parallel to the extending direction of the rail member, which is capable of connecting two end rod members separated to both ends of the rail member. As described above, the end rod member has a length in a direction parallel to the extending direction. Then, when the sheet-shaped member is unfolded by the two end bar members thus separated from each other, the sheet-shaped member is arranged inside the vehicle body so as to cover the side window. Furthermore, the sheet-shaped member is pleated so that a plurality of folds parallel to the extending direction of the two end bar members are formed. Therefore, when the two end rod members approach each other, the two end rod members are contracted so as to be folded between the two end rod members.

  That is, in the light-shielding device described in this section, the two end bar members are separated from each other, so that the side window is covered by the expanded sheet-shaped member, and the two end bar members are connected to one end of the rail member. The sheet-shaped member is reduced between the two end rod members on the one end side of the rail member by being brought closer to the side. Thus, unlike the conventional light-shielding device, the side window is shielded from light when necessary, and a spring or the like for winding up the sheet-shaped member is not used, and the sheet-shaped member is engaged with the rail member. Since no member or the like is required, the weight of the light shielding device can be reduced. Further, since the entire winding mechanism for winding the sheet-shaped member is unnecessary, the space where the winding mechanism is conventionally installed is effectively used for another purpose.

  Further, since the two end rod members are held by the pair of rail members, even when the rail members are installed with an inclination with respect to the vertical direction of the vehicle body or while the railway vehicle is traveling, The sheet-shaped member is stably held, and by extension, the sheet-shaped member held between the two end rod members is also held stably because swinging is suppressed. In addition, since the two end rod members are moved to arbitrary positions along the rail member, one end portion side of the rail member to the other end portion side, or the other end portion of the rail member. From one side to one end side, the sheet-shaped member is opened and closed in any direction. As a result, the sheet-shaped member is opened and closed from a direction that is easy for the user to handle, regardless of the traveling direction of the railway vehicle (in other words, the direction of the seat).

(2) In the above item (1), the pair of rail members are installed in the vehicle body longitudinal direction so as to be separated from each other in the vehicle body vertical direction (claim 2).
In the light-shielding device described in this section, a pair of rail members are installed along the longitudinal direction of the vehicle body while being separated from each other in the vertical direction of the vehicle body. That is, the pair of rail members are installed in the upper portion and the lower portion of the window frame of the vehicle body so as to face each other so as to sandwich the side window in the vertical direction when the side window is seen from the inside of the vehicle body. At this time, if the side windows are installed slightly inclined with respect to the vertical direction of the vehicle body so that the vehicle body upper side portion is located inside the vehicle body lower side portion, the same size as the inclination The pair of rail members may be installed so as to face each other with an inclination with respect to the vehicle body vertical direction. The two end bar members that engage with such a pair of rail members are to be moved along the longitudinal direction of the vehicle body, and the sheet-shaped member held between the two end bar members is the vehicle body. It can be opened and closed along the longitudinal direction. As a result, a light blocking device that is opened and closed along the traveling direction of the vehicle is provided.

(3) In the above item (2), the rail member installed on the upper side of the vehicle body of the pair of rail members has a depth larger than the thickness of the rail member in the vehicle body vertical direction, and the vehicle body of the window frame. A light-shielding device provided in an upper portion and installed in a recess (claim 3).
In the light-shielding device described in this section, of the pair of rail members that are spaced apart from each other in the vertical direction of the vehicle body, the rail member that is installed on the vehicle body upper side is installed in the recess provided in the vehicle body upper portion of the window frame It is what is done. The recess has a depth larger than the thickness of the rail member to be installed in the vertical direction of the vehicle body and extends in the vehicle body longitudinal direction. For this reason, the rail member installed in the recess is less visible from the inside of the vehicle body, and the appearance is improved. Further, a part of the upper end side of the end bar member that engages with the rail member and a part of the upper end side of the sheet-shaped member that extends so as to connect between the pair of rail members are located in the recess. It will be. As a result, a part of the upper end side of the sheet-shaped member is restricted from moving in the vehicle body width direction in the recess, so that the sheet-shaped member is prevented from loosening in the vehicle body width direction.

(4) In the above items (2) and (3), a table is provided along a lower portion of the vehicle body of the window frame, and the rail member installed on the lower side of the vehicle body of the pair of rail members is more than the table. A light blocking device installed on the upper side of the vehicle body (claim 4).
The light-shielding device described in this section is installed on the lower side of the vehicle body of the pair of rail members that are installed separately in the vertical direction of the vehicle body when the table is provided along the lower part of the vehicle body of the window frame. The rail member is installed on the vehicle body upper side than the table. This makes it more difficult for foreign matter to enter the inside of the rail member from the upper surface of the table, as compared with the case where the rail member is installed below the table in the vehicle body or at the same height as the table. This will prevent the entry of foreign matter.

(5) In the above item (1), the pair of rail members are installed in the vehicle body vertical direction so as to be spaced apart from each other in the vehicle body longitudinal direction (claim 5).
In the light-shielding device described in this section, a pair of rail members are installed along the vehicle body vertical direction with being separated in the vehicle body longitudinal direction. That is, the pair of rail members are installed in the left portion and the right portion of the window frame so as to face each other so as to sandwich the side window from the left and right in a front view of the side window from the inside of the vehicle body. At this time, if the side windows are installed slightly inclined with respect to the vertical direction of the vehicle body so that the vehicle body upper side portion is located inside the vehicle body lower side portion, the same size as the inclination The pair of rail members may be installed so as to face each other with an inclination with respect to the vehicle body vertical direction. The two end bar members that engage with such a pair of rail members are moved along the vehicle body vertical direction or along a direction slightly inclined from the vehicle body vertical direction. Further, the sheet-shaped member held between the two end rod members is opened and closed along the vertical direction of the vehicle body or along a direction slightly inclined from the vertical direction of the vehicle body. As a result, a light blocking device that is opened and closed in the vertical direction of the vehicle body is provided.

(6) In the above item (5), the light shielding device having a stationary structure in which each of the two end rod members is stationary at an arbitrary position of the pair of rail members (claim 6).
The light-shielding device described in this section has a stationary structure in which each of the two end rod members is stationary at an arbitrary position of the pair of rail members. That is, since the pair of rail members are installed along the vertical direction of the vehicle body, the two end bar members that are movably engaged with the rail members are not attached to the weight of the rail members if they are located at positions other than the lower ends of the rail members. There is a risk that the vehicle body will gradually move downward due to the influence of vibration of the vehicle body or the like. Therefore, for example, by providing a static structure using a frictional force between the rail member and the end rod member or a dedicated mechanism, the two end rod members and the sheet-like members held by them are provided. The member is prevented from being moved unintentionally.

  (7) In the above items (1) to (6), each of the pair of rail members has a tubular shape with a rectangular cross section in the extending direction and faces the other of the rectangular rail members. An opening is provided along the extending direction of the rail member in the vicinity of the center of the first side in the extending direction of the portion corresponding to the first side, and the second portion is located inside the rectangular vehicle body. A rack rail that extends along the rail member and has a plurality of teeth is provided on the inner surface of the rail member at a portion corresponding to a side, and each of the two end rod members has a tubular shape. A main body portion, a shaft portion that is rotatably inserted in the main body portion, and has both end portions projecting from the opening into the pair of rail members; and the shaft portions at both end portions of the shaft portion. Is rotatably mounted together with the rack, and the rack is provided inside the pair of rail members. Shading device comprising a gear which engages with a plurality of teeth Lumpur, the (claim 7).

  In the light shielding device described in this item, each of the pair of rail members has a tubular shape with a rectangular cross section in the extending direction. When such a pair of rail members are installed on the window frame so as to face each other, one side (first side) of the four sides of the above-mentioned rectangular of the rail member faces the other rail member. The arrangement is such that one side (second side) of the two sides orthogonal to the first side is located inside the vehicle body. In each of the pair of rail members, an opening is provided along the extending direction of the rail member in the vicinity of the center of the extending direction of the first side of the portion corresponding to the first side. There is. That is, the cross section in the extending direction of the rail member provided with the opening is a rectangle in which a part of the first side is opened, and the openings provided in the pair of rail members are arranged so as to face each other. It Further, each of the rail members is provided with a rack rail on the inner side surface of the rail member at a portion corresponding to the second side. The rack rail extends along the rail member and has a plurality of teeth arranged in the extending direction.

  On the other hand, each of the two end rod members includes a tubular main body, a shaft portion inserted into the main body portion, and gears attached to both ends of the shaft portion. The body portion is a portion that holds the sheet-shaped member, and it is preferable that a handle portion or the like is provided to assist the user in moving the end rod member. The shaft portion is rotatably inserted into the main body portion, and in this state, both ends of the shaft portion project into the rail member from openings provided in the rail member. That is, one end of the shaft portion of each end rod member projects into the inside of one rail member, and the other end of the shaft portion of each end rod member projects into the inside of the other rail member. ing. The gear is rotatably attached to both ends of the shaft portion projecting inside the rail member together with the shaft portion, and engages with a plurality of teeth of the rack rail inside each rail member.

  With the above-described configuration, the light blocking device described in this section is moved in a state where the user holds the main body portion, for example, when the end rod member is moved along the rail member by the user. Then, the gear positioned inside the rail member is rotated about the shaft portion as the rotation axis while sequentially changing the teeth of the rack rail to be engaged to the teeth adjacent to the extending direction of the rack rail, It is moved along the rail member inside the member. At this time, the shaft portion is moved together with the main body portion while being rotated with respect to the main body portion together with the gear. Further, since the gears that rotate inside each of the pair of rail members both rotate together with the shaft portion, one gear will not rotate later than the other gear. Therefore, the end rod member can be smoothly moved along the rail member while maintaining the engagement state with the pair of rail members. Here, as described in the above items (2) and (5), the rail member slightly moves in the vertical direction of the vehicle body so that the vehicle body upper side portion is located inside the vehicle body side than the vehicle body lower side portion. It refers to the case where it is installed at an angle. Even in such a case, the gear arranged inside the rail member is arranged so as to be inclined toward the inner side surface of the portion corresponding to the above-mentioned second side of the rail member where the rack rail is installed. Therefore, the teeth of the rack rail are engaged without any problem.

(8) In the above items (1) to (7), both of the pair of rail members are adjacent to at least one extending direction end portion, and are engaged in a direction parallel to the extending direction of the rail member, A light shielding device provided with a detachable stopper member having a length larger than each of the two end rod members (claim 8).
In the light-shielding device described in this item, a detachable stopper member is provided adjacent to at least one extending direction end of both of the pair of rail members. The length of the stopper member in the direction parallel to the extending direction of the rail member is larger than the length of the end rod member in the same direction. Therefore, when the stopper member is removed, a space having a length in the above direction larger than that of the end rod member is secured at a position adjacent to the rail member where the stopper member was arranged. As a result, the end rod member is removed from each of the pair of rail members via this space, and at the same time, the sheet-shaped member held by the end rod member is also removed. Therefore, the end rod member and the sheet-shaped member can be easily removed as required during maintenance.

  Since the present invention has the above-mentioned configuration, it is possible to reduce the weight of the light shielding device.

It is a front view which shows the window frame vicinity in which the light-shielding device which concerns on the 1st Embodiment of this invention was installed from a vehicle body inside. It is sectional drawing in the AA line of FIG. (A) is a sectional view taken along the line BB in FIG. 1, and (b) is an enlarged view of the vicinity of the upper rail member shown in (a). FIG. 2 shows an example of use of the light shielding device in FIG. 1, where (a) shows a state in which the left half of the side window is covered with a sheet-shaped member, and (b) shows a state in which the side window is covered near the center in the left-right direction. , (C) shows a state in which the sheet-shaped member is folded on the right side of the side window. It shows a light-shielding device according to a second embodiment of the present invention, (a) is a cross-sectional view of a portion corresponding to line AA of FIG. 1, (b) is a line BB of FIG. It is sectional drawing in a corresponding part. 6A and 6B show an example of use of the light shielding device of FIG. 5, where FIG. 5A shows a state in which a sheet-like member covers the upper half of the side window, and FIG. , (C) shows a state in which the sheet-shaped member is folded under the side window.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. Here, detailed description of the same parts as or corresponding parts to those of the conventional technique will be omitted, and the same parts or corresponding parts are denoted by the same reference numerals throughout the drawings.
1 to 3 schematically show the structure of the light shielding device 10 according to the first embodiment of the present invention. The shading device 10 is installed to shade a side window 54 installed in a window frame 50 of a vehicle body of a railway vehicle. For convenience of description, the side window 54 in the following description does not indicate the entire window glass forming the side window 54, but a portion visually recognized as a window when viewed from the inside of the vehicle body, that is, a window. The portion excluding the portion covered with the glass window frame 50 is shown.

  As shown in the figure, the light shielding device 10 according to the first exemplary embodiment of the present invention includes a pair of rail members 12 (which are fixed to the vehicle body upper portion 50a and the vehicle body lower portion 50b of the window frame 50 so as to face each other. 12A, 12B), two end rod members 30 (30A, 30B) whose both ends engage with the pair of rail members 12, and a sheet shape held between them by the two end rod members 30. And a member 44. Each of the pair of rail members 12 extends in the vehicle body longitudinal direction (the left-right direction in FIGS. 1 and 2) and has a length in the same direction larger than the length of the side window 54 in the vehicle body longitudinal direction. There is. Although not shown for convenience, the left end of each rail member 12 is located on the left side of the left edge of the side window 54 in the viewpoint of FIG. 1 in which the vehicle body longitudinal direction is the left-right direction. The right end of each rail member 12 is located on the right side of the right edge of the side window 54.

  Further, in the illustrated example, each rail member 12 is slightly moved in the vertical direction of the vehicle body so that the upper side is located inside the vehicle body (left side in the figure) rather than the lower side, as can be seen in FIG. 3A. Similarly to the side window 54, the side window 54 is installed at a slight inclination with respect to the vehicle body vertical direction so as to correspond to the side window 54. The rail member 12A on the vehicle body upper side is located in the vehicle body upper side than the edge of the side window 54 on the vehicle body upper side by being installed in the recess 52 provided in the vehicle body upper portion 50a of the window frame 50. . That is, the recess 52 is formed deeper than the vertical thickness of the rail member 12A. Similarly, the rail member 12B on the lower side of the vehicle body is installed on the step portion 53 provided deeper than the vertical thickness of the rail member 12B on the vehicle body lower portion 50b of the window frame 50, so that the side window 54 It is located on the vehicle body lower side than the vehicle body lower side edge. The pair of rail members 12 are formed of a material such as aluminum.

  FIG. 3B shows an enlarged view of the vicinity of the rail member 12A installed on the upper side of FIG. 3A. Here, although the rail member 12A will be described as an example, it is opposed to the rail member 12A. Thus, the rail member 12B installed on the lower side of FIG. 3A also has the same structure as the rail member 12A. As illustrated, the rail member 12A has a rectangular tubular shape in a cross section in the extending direction, and the portion 12d corresponding to the upper side of the rectangle is attached to the recess 52 by the screw 22, The rail member 12A is fixed to the window frame 50. In the rail member 12A, a portion 12a corresponding to the lower side (first side) of the rectangle faces the rail member 12B, and the rail member 12A is attached to the portion 12a corresponding to the first side. An opening 14 extending in the same direction as is provided. The rail member 12A has a rack rail 18 extending in the same direction as the rail member 12A attached to an inner side surface 12c of a portion 12b corresponding to the left side (inside the vehicle body) side (second side) of the rectangle. There is. The rack rail 18 is provided with a plurality of teeth 20 protruding toward the inside (right side) of the rail member 12 </ b> A at equal intervals adjacent to each other in the extending direction of the rack rail 18. The rack rail 18 is made of resin, for example.

  On the other hand, the two end rod members 30 are engaged with the rail member 12 at both ends so as to be movable along the pair of rail members 12, and the pulling part is provided so that the user's hand can be held during the movement. 40 is provided. In the state shown in FIGS. 1 and 2, the end rod member 30A is moved to the left end portion of the rail member 12 in the drawing, and the end rod member 30B is moved to the right end portion of the rail member 12 in the drawing. In this state, the end bar member 30A located on the left side in the drawing is located slightly on the left side in the drawing from the right side end portion of the panel 80 forming the left side portion 50c of the window frame 50 inside the vehicle body. As a result, a part of the left side of the drawing is covered with the panel 80. Similarly, the end bar member 30B located on the right side in the drawing is located slightly on the right side in the drawing from the left end portion of the panel 82 forming the right side portion 50d of the window frame 50 inside the vehicle body. A part of the right side of the drawing is covered with the panel 82. Further, as shown in FIG. 2, the stopper is provided adjacent to the end rod member 30B that has been moved to the right end of the rail member 12 in the figure, in other words, adjacent to the right end of the rail member 12 in the figure. The member 66 is installed. The stopper member 66 is installed so as to be removable as necessary, and its lateral size in the figure is slightly larger than the lateral size of the end rod members 30A and 30B in the figure.

  As can be seen in FIG. 3 (a), each of the two end rod members 30 extends between the pair of rail members 12, and as described above, the pair of rail members 12 are arranged in the vehicle body vertical direction. The end bar member 30 is also tilted in the same manner because it is installed at a slight tilt. Further, as shown in FIG. 3B, each of the end rod members 30 has a main body portion 32, a shaft portion 34, and a gear 36. The main body portion 32 is made of, for example, aluminum and has a tubular shape extending between the pair of rail members 12. The shaft portion 34 is inserted into the main body portion 32, and the pull tab portion 40 described above is provided on the outer surface (see FIG. 1). Is provided. The shaft portion 34 is rotatably inserted into the main body portion 32, has a rod shape longer than the main body portion 32, and both end portions 34 a thereof project from both end portions of the main body portion 32. Further, the end portion 34 a of the shaft portion 34 protruding from the main body portion 32 projects into the rail member 12 from the opening 14 provided in the rail member 12. A gear 36 is attached to the end portion 34a of the shaft portion 34 so as to rotate about the shaft portion 34 as a rotation axis. The gear 36 is engaged with the plurality of teeth 20 of the rack rail 18 installed on the inner surface 12 c of the rail member 12 inside the rail member 12. 3 (b) shows the upper end of the end rod member 30 in FIG. 3 (a), the lower end of the end rod member 30 in FIG. 3 (a) is also upper. It has the same structure as the end portion of.

  On the other hand, the sheet-like member 44 held by the two end rod members 30 is pleated by any method suitable for the material, as can be seen in FIG. A plurality of folds 46 parallel to the extending direction (vertical direction in the drawing) are formed. As shown in FIG. 2, the plurality of fold lines 46 are folded in adjacent directions so that the fold lines 46 are adjacent to each other. The sheet-shaped member 44 has a rectangular shape in a plan view, and both ends in the direction orthogonal to the extending direction of the fold line 46 (the left-right direction in FIGS. 1 and 2) are the main body parts 32 of the two end bar members 30. (See FIG. 3B).

  Further, as shown in FIG. 3A, the sheet-shaped member 44 extends so as to connect the pair of rail members 12. Therefore, the end of the sheet-shaped member 44 on the upper side in the drawing enters the recess 52 provided in the vehicle body upper portion 50a of the window frame 50 and is positioned on the vehicle body upper side than the vehicle body upper edge of the side window 54. The sheet-like member 44 is located at a lower end in the figure than the vehicle body lower side edge of the side window 54. Further, as described above, since the two end rod members 30 are installed so as to be slightly inclined with respect to the vertical direction of the vehicle body, the number of the sheet-shaped members 44 held by the two end rod members 30 is also two. Like the end bar member 30 of FIG.

  The sheet-like member 44 is pleated, is held by the two end rod members 30 without being held by the pair of rail members 12, and the light-shielding property and the fire resistance are taken into consideration. It shall be made of a suitable material. That is, it is preferable that the sheet-shaped member 44 is made of a material in which the plurality of folds 46 are maintained for a long period of time, and the sheet-shaped member 44 is not easily loosened even under the influence of the vibration of the railway vehicle. For example, the sheet-shaped member 44 may be formed of synthetic fibers that satisfy the above requirements. Note that FIG. 4 shows an example in which the two end bar members 30 are moved to positions different from those in FIGS. 1 and 2 and the sheet-like members 44 are arranged in various positions. Further, the sheet-like member 44 is taut without the fold line 46 being temporarily formed in a state where the two end rod members 30 are separated to both ends of the rail member 12 as shown in FIGS. 1 and 2. It may have a length in the left-right direction in the drawing so as to be in a state (straight state from the viewpoint of FIG. 2).

  Here, referring to a plurality of members provided around the light shielding device 10, the window flap 56 that constitutes the vehicle body upper portion 50a of the window frame 50 inside the vehicle body has a window upper portion 56a that is closer to the upper portion of the side window 54 than the periphery. A decorative portion 58 that is recessed to the outside of the vehicle body is formed. The decorative portion 58 is provided with a lighting 60 and two coat hooks 62. Further, as shown in FIG. 3A, an air conditioning duct 70 is arranged inside the window window 56 above the decorative portion 58 in the figure. Further, as shown in FIGS. 1 to 3, a table 64 protruding toward the inside of the vehicle body is provided in the vehicle body lower portion 50b of the window frame 50 at a position slightly lower than the rail member 12B. It should be noted that reference numeral 72 in FIG. 3A virtually shows the position of the winding mechanism used in the conventional shading device.

  By the way, according to the first embodiment of the present invention having the above configuration, it is possible to obtain the following operational effects. That is, the light shielding device 10 according to the first exemplary embodiment of the present invention includes a pair of rail members 12, two end rod members 30, and a sheet-shaped member 44, as shown in FIGS. 1 to 3. . The pair of rail members 12 are arranged in parallel to each other so as to face the window frame 50 provided with the side windows 54 so as to sandwich the side windows 54 in a front view of the side windows 54 from the inside of the vehicle body of the railway vehicle. It Each of the two end rod members 30 engages with the rail member 12 such that both ends thereof are movable along the pair of rail members 12 in a manner extending between the pair of rail members 12. That is, each end bar member 30 is held by the pair of rail members 12 with one end engaged with the one rail member 12A and the other end engaged with the other rail member 12B. At this time, one end and the other end of the end rod member 30 and the rail member 12 are engaged with each other in a state that the end rod member 30 can move along the rail member 12, and the two end rod members 30 are , Are arranged in parallel with each other between the pair of rail members 12.

  On the other hand, the sheet-like member 44 is not directly held by the rail member 12 but is formed by the two end rod members 30 arranged in parallel with each other between the pair of rail members 12 as described above. It is held between the end rod members 30 of. Then, the sheet-shaped member 44 has two end rod members 30 in a state in which the two end rod members 30 are separated along the pair of rail members 12 to both ends of the rail member 12 (states of FIGS. 1 and 2). It has a size that covers at least the side window 54 together with the rod member 30 or alone. That is, the sheet-like member 44 is a direction parallel to the extending direction of the rail member 12 (left and right in FIG. 1 and FIG. 2), which is capable of connecting the two end bar members 30 separated to both ends of the rail member 12. Direction) and a length in a direction (vertical direction in FIGS. 1 and 3) parallel to the extending direction of the end rod member 30 for connecting the pair of rail members 12. When the sheet-shaped member 44 is unfolded by the two end bar members 30 thus separated, the sheet-shaped member 44 is arranged so as to cover the side window 54 inside the vehicle body. Further, the sheet-shaped member 44 is pleated so that a plurality of folds 46 parallel to the extending direction of the two end rod members 30 are formed. Therefore, when the two end rod members 30 approach each other, the two end rod members 30 are contracted so as to be folded (see FIG. 4C).

  That is, in the light shielding device 10 according to the first exemplary embodiment of the present invention, the two end bar members 30 are separated from each other, so that the side window 54 can be covered with the expanded sheet member 44. The sheet-shaped member 44 is contracted between the two end bar members 30 on the one end side of the rail member 12 by the one end bar member 30 being brought closer to the one end side of the rail member 12. be able to. Thus, unlike the conventional light-shielding device, the side window 54 is shielded from light when necessary, without using a spring or the like for winding up the sheet-shaped member 44, and the sheet-shaped member 44 is fixed to the rail member 12. Since a member or the like to be engaged with is unnecessary, it is possible to reduce the weight of the light shielding device 10. Further, as shown in FIG. 3A, since the entire winding mechanism 72 for winding the sheet-shaped member 44 is not required, the space where the winding mechanism 72 is conventionally installed is effectively used for another purpose. be able to. For example, in the illustrated example, the vacant space is used as the decorative portion 58 provided with the lighting 60 and the coat hook 62, and the air conditioning duct 70 is expanded and installed as shown by a virtual line. You can also

  Further, since the two end rod members 30 are held by the pair of rail members 12, when the rail members 12 are installed so as to be inclined with respect to the vertical direction of the vehicle body or when the rail vehicle is traveling. However, it is possible to stably hold the sheet-shaped member 44 held between the two end bar members 30 and to stably hold the sheet-shaped member 44 because the swing is suppressed. . In addition, since the two end rod members 30 are moved to arbitrary positions along the rail member 12, the one end portion side of the rail member 12 is moved to the other end portion side of the rail member 12, or the rail member 12 is moved. The sheet-like member 44 can be opened and closed in any direction from the other end side to the one end side. This makes it possible to open and close the sheet-shaped member 44 from a direction that is easy for the user to handle, regardless of the traveling direction of the railway vehicle (in other words, the direction of the seat).

  Further, in the light shielding device 10 according to the first exemplary embodiment of the present invention, the pair of rail members 12 are installed along the longitudinal direction of the vehicle body while being separated in the vertical direction of the vehicle body. That is, the pair of rail members 12 are installed in the vehicle body upper portion 50a and the lower portion 50b of the window frame 50 so as to face each other so as to sandwich the side window 54 from the top and bottom in a front view of the side window 54 from the inside of the vehicle body. To be done. At this time, as shown in FIG. 3A, the side window 54 is installed so as to be slightly inclined with respect to the vertical direction of the vehicle body so that the vehicle body upper side portion is located inside the vehicle body side than the vehicle body lower side portion. In this case, the pair of rail members 12 are installed so as to face each other with an inclination in the vertical direction of the vehicle body that is the same as the inclination. The two end rod members 30 that engage with the pair of rail members 12 are to be moved in the longitudinal direction of the vehicle body, and are sheet-like members held between the two end rod members 30. 44 is opened and closed along the longitudinal direction of the vehicle body. Accordingly, it is possible to provide the light shielding device 10 that is opened and closed along the traveling direction of the vehicle.

  Further, in the light shielding device 10 according to the first exemplary embodiment of the present invention, the rail member 12A installed on the upper side of the vehicle body out of the pair of rail members 12 installed in the vehicle body vertical direction is the window frame. It is installed in a concave portion 52 provided in the vehicle body upper portion 50a of 50. The recess 52 has a depth larger than the thickness of the installed rail member 12A in the vehicle body vertical direction and extends in the vehicle body longitudinal direction. Therefore, the rail member 12A installed in the recess 52 is less likely to be visually recognized from the inside of the vehicle body, and the appearance can be improved. Further, a part of the upper end side of the end rod member 30 that engages with the rail member 12A and a part of the upper end side of the sheet-like member 44 that extends so as to connect the pair of rail members 12 are recessed. Will be located inside. Accordingly, a part of the upper end side of the sheet-shaped member 44 is restricted from moving in the vehicle body width direction in the recess 52, so that the sheet-shaped member 44 can be prevented from slackening in the vehicle body width direction. Particularly, in the example of FIG. 3A, since the rail member 12A is installed so as to be positioned inside the vehicle body (on the left side in the drawing) with respect to the rail member 12B, the sheet-like member 44 is loosened to the left side in the drawing. It tends to be easy. However, since a part of the upper end side of the sheet-shaped member 44 is located in the recess 52, even if the sheet-shaped member 44 is slackened to the left side in the drawing, the upper end side of the sheet-shaped member 44 has the window frame 50. The sheet-shaped member 44 does not loosen significantly because it comes into contact with the right end portion of the window window 56 forming the vehicle upper portion 50a in the figure.

  Furthermore, the light shielding device 10 according to the first exemplary embodiment of the present invention is a pair that is installed in the vehicle body vertical direction with a space provided when the table 64 is provided along the vehicle body lower portion 50b of the window frame 50. Among the rail members 12, the rail member 12B installed on the lower side of the vehicle body is installed on the upper side of the vehicle body than the table 64. This makes it more difficult for foreign matter to enter the inside of the rail member 12B from the upper surface of the table 64, as compared with the case where the rail member 12B is installed on the vehicle body lower side of the table 64 or at the same height as the table 64. Therefore, it is possible to prevent such foreign matter from entering.

  Further, in the light shielding device 10 according to the first exemplary embodiment of the present invention, as shown in FIG. 3B, each of the pair of rail members 12 has a tubular shape with a rectangular cross section in the extending direction. ing. When such a pair of rail members 12 are installed on the window frame 50 so as to face each other, one side (first side) of the four sides of the rectangle of the rail member 12 described above is the other rail member. The first and second sides are arranged so as to face each other, and one side (second side) of the two sides orthogonal to the first side is located inside the vehicle body. Each of the pair of rail members 12 has an opening 14 along the extending direction of the rail member 12 in the vicinity of the center in the extending direction of the first side of the portion 12a corresponding to the first side. Is provided. That is, the cross section in the extending direction of the rail member 12 provided with the opening 14 is a rectangle in which a part of the first side is opened, and the openings 14 provided in the pair of rail members 12 face each other. Are placed. Further, each of the rail members 12 is provided with a rack rail 18 on the inner side surface 12c of the rail member 12 at a portion 12b corresponding to the second side. The rack rail 18 extends along the rail member 12 and has a plurality of teeth 20 arranged in the extending direction (the left-right direction in FIGS. 1 and 2).

  On the other hand, each of the two end rod members 30 includes a tubular main body portion 32, a shaft portion 34 inserted into the main body portion 32, and a gear 36 attached to both end portions 34 a of the shaft portion 34. There is. The main body portion 32 is a portion that holds the sheet-like member 44, and is provided with a pull tab portion 40 (see FIG. 1) and the like to assist the user in moving the end rod member 30. The shaft portion 34 is rotatably inserted into the main body portion 32, and in this state, both end portions 34 a of the shaft portion 34 project into the rail member 12 from the openings 14 provided in the rail member 12. That is, one end 34a of the shaft portion 34 of each end rod member 30 projects into the inside of one rail member 12 (12A), and the other end portion 34a of the shaft portion 34 of each end rod member 30. Is projected inside the other rail member 12 (12B). The gear 36 is rotatably attached to both ends 34 a of the shaft portion 34 projecting inside the rail member 12 together with the shaft portion 34, and inside the rail members 12, a plurality of teeth of the rack rail 18 are provided. 20 is engaged.

  With the above configuration, in the light shielding device 10 according to the first exemplary embodiment of the present invention, when the user moves the end rod member 30 along the rail member 12, the pull tab portion 40 is moved by the user. The main body 32 is moved in the gripped state. Then, the gear 36 positioned inside the rail member 12 changes the shaft portion 34 while sequentially changing the teeth 20 of the rack rail 18 to be engaged to the teeth 20 adjacent in the extending direction of the rack rail 18. It is rotated as a rotation axis and moved along the rail member 12 inside the rail member 12. At this time, the shaft portion 34 is moved together with the main body portion 32 while being rotated with respect to the main body portion 32 together with the gear 36. Further, since the gears 36 that rotate inside each of the pair of rail members 12 rotate together with the shaft portion 34, one gear 36 does not rotate later than the other gear 36. Therefore, the end bar member 30 can be smoothly moved along the rail member 12 while maintaining the engagement state with the pair of rail members 12.

  Here, as in the example of FIG. 3, when the rail member 12 is installed at a slight inclination with respect to the vertical direction of the vehicle body so that the vehicle body upper side portion is located inside the vehicle body side than the vehicle body lower side portion. To mention. Even in such a case, the gear 36 arranged inside the rail member 12 is provided on the inner side surface 12c of the portion 12b corresponding to the above-mentioned second side of the rail member 12 in which the rack rail 18 is installed. Since it is arranged so as to be inclined, the teeth 20 of the rack rail 18 can be engaged without any problem.

  Furthermore, in the light shielding device 10 according to the first exemplary embodiment of the present invention, a detachable stopper member 66 is provided adjacent to at least one extending direction end of both of the pair of rail members 12. Is. In FIG. 2, two end bar members 30 are moved to both ends of the rail member 12 in the left-right direction (extending direction of the rail member 12) in the figure, and are adjacent to the right end bar member 30B in the figure. The stopper member 66 is shown as an example. The length of the stopper member 66 in the direction parallel to the extending direction of the rail member 12 is larger than the length of the end rod member 30 in the same direction as the stopper member 66. Therefore, when the stopper member 66 is removed, a space having a length in the above direction larger than that of the end rod member 30 is secured at a position adjacent to the rail member 12 where the stopper member 66 was disposed. As a result, the end rod member 30 can be removed from each of the pair of rail members 12 via this space, and at the same time, the sheet-like member 44 held by the end rod member 30 can also be removed. Therefore, the end rod member 30 and the sheet-shaped member 44 can be easily removed as needed during maintenance or the like.

  Next, with reference to FIGS. 5 and 6, a light shielding device 10 'according to a second embodiment of the present invention will be described. In FIGS. 5 and 6, the same parts as or the parts corresponding to those of the light shielding device 10 according to the first embodiment of the present invention are designated by the same reference numerals. Regarding the light shielding device 10 ′ according to the second exemplary embodiment of the present invention, only differences from the light shielding device 10 according to the first exemplary embodiment of the present invention will be described, and the first exemplary embodiment of the present invention will be described. The description of the configuration, operation effects, and the like of the same portions as the light shielding device 10 according to the embodiment will be omitted.

  As shown in FIG. 5, in the light shielding device 10 ′ according to the second embodiment of the present invention, each of the pair of rail members 12 (12C, 12D) has a vehicle body vertical direction (vertical direction in FIG. 5B). ), And has a length in the same direction larger than the length of the side window 54 in the vertical direction of the vehicle body. In the illustrated example, the pair of rail members 12 are also installed so as to be slightly tilted with respect to the vertical direction of the vehicle body so as to correspond to the side windows 54 that are installed slightly tilted with respect to the vertical direction of the vehicle body. . Although not shown for convenience sake, the upper end of each rail member 12 is located above the upper edge of the side window 54 in the viewpoint of FIG. The lower end of each rail member 12 is located below the lower edge of the side window 54. Further, as shown in FIG. 5A, one rail member 12C is located on the left side in the drawing with respect to the left edge of the side window 54 in the drawing, and the other rail member 12D is located in the side window 54 in the drawing. It is located on the right side in the figure with respect to the right edge.

  Further, the two end rod members 30 (30C, 30D) are engaged with the rail member 12 at both ends so as to be movable along the pair of rail members 12, and extend in the left-right direction in FIG. Existence In the state shown in FIG. 5B, the end rod member 30C is moved to the upper end portion of the rail member 12 in the drawing, and the end rod member 30D is moved to the lower end portion of the rail member 12 in the drawing. In this state, the end bar member 30C located on the upper side in the figure is in a position to cover the edge of the side window 54 on the vehicle body upper side from the inside of the vehicle body, and the end bar member 30D located on the lower side in the figure is , At a position that covers the edge of the side window 54 on the lower side of the vehicle body from the inside of the vehicle body.

  Here, both ends of each end rod member 30 in the extending direction are processed in the same manner as the example of the light shielding device 10 according to the first exemplary embodiment of the present invention shown in FIG. 12 is engaged. The end bar member 30 of the light shielding device 10 'according to the second embodiment of the present invention is provided with a stationary structure 38 that is stationary at the moved position. In this stationary structure 38, for example, referring to FIG. 3B, a frictional force when the shaft portion 34 rotates with respect to the main body portion 32, and the end rod member 30 is moved along the rail member 12. In this case, a frictional force or the like between the end rod member 30 and the rail member 12 may be used. The stationary structure 38 may be realized by providing a dedicated mechanism for stationary the end rod member 30 with respect to the rail member 12.

  On the other hand, as can be seen in FIG. 5B, the sheet-shaped member 44 is pleated so that a plurality of folds 46 parallel to the extending direction of the end rod member 30 are formed. The sheet-shaped member 44 is held between the two end rod members 30 by the two end rod members 30. Therefore, in the state shown in FIG. 5B, the two end bar members 30 and the side window 54 are extended from the inside of the vehicle body in the vertical direction of the vehicle body. Further, as shown in FIG. 5A, the sheet-shaped member 44 extends so as to connect between the pair of rail members 12. Therefore, the end of the sheet-shaped member 44 on the left side in the figure is located on the left side of the figure with respect to the left-side edge of the side window 54, and the end of the sheet-shaped member 44 on the right side in the figure is located on the side window 54. Is located on the right side of the drawing with respect to the edge on the right side of the drawing. Note that FIG. 6 shows an example in which the two end bar members 30 are moved to positions different from those in FIG. 5 and the sheet-shaped members 44 are arranged in various positions.

  According to the second embodiment of the present invention having the above configuration, the following operational effects can be obtained. That is, as shown in FIG. 5, the light shielding device 10 ′ according to the second embodiment of the present invention is one in which the pair of rail members 12 are installed along the vehicle body vertical direction while being separated in the vehicle body longitudinal direction. Is. That is, the pair of rail members 12 are installed in the left portion and the right portion of the window frame 54 so as to face each other so as to sandwich the side window 54 from the left and right in a front view of the side window 54 from the inside of the vehicle body ( See FIG. 5 (a). At this time, as shown in FIG. 5B, when the side window 54 is installed at a slight inclination with respect to the vertical direction of the vehicle body, the side window 54 has an inclination with respect to the vertical direction of the vehicle body that is the same as the inclination. The pair of rail members 12 are installed facing each other. The two end rod members 30 that engage with the pair of rail members 12 are moved along a direction slightly inclined from the vehicle body vertical direction. Further, the sheet-shaped member 44 held between the two end rod members 30 is opened and closed along a direction slightly inclined from the vehicle body vertical direction. Accordingly, it is possible to provide the light blocking device 10 'that is opened and closed in the vertical direction of the vehicle body.

  Even in the configuration like the light shielding device 10 ′ according to the second exemplary embodiment of the present invention, the sheet-like member 44 is wound up like the light shielding device 10 according to the first exemplary embodiment of the present invention. Since a spring or the like is not used and a member or the like for engaging the sheet-shaped member 44 with the rail member 12 is not necessary, it is possible to reduce the weight of the light shielding device 10 ′. Further, as shown in FIG. 5B, since the entire winding mechanism 72 for winding the sheet-shaped member 44 is not required, the space where the winding mechanism 72 is conventionally installed is provided with the coat hook 62 and the like. The decorative portion 58 and the air-conditioning duct 70 can be effectively used as a space for setting them wider than before.

  Further, the light shielding device 10 ′ according to the second exemplary embodiment of the present invention has a stationary structure 38 for allowing each of the two end rod members 30 to stand at an arbitrary position of the pair of rail members 12. Is. That is, since the pair of rail members 12 are installed along the vertical direction of the vehicle body, the two end rod members 30 movably engaged with the rail members 12 are located at positions other than the lower ends of the rail members 12. Then, there is a possibility that the vehicle gradually moves downward due to the influence of its own weight or vibration of the vehicle body. Therefore, for example, by the frictional force between the rail member 12 and the end rod member 30 or the stationary structure 38 using a dedicated mechanism or the like, the two end rod members 30 and the two end rod members 30 are held. It is possible to prevent the involuntary movement of the sheet-shaped member 44 that is in use.

  10, 10 ': Shading device, 12 (12A to 12D): Rail member, 12a: Part corresponding to first side, 12b: Part corresponding to second side, 12c: Inner side surface, 14: Opening part, 18: rack rail, 20: tooth, 30 (30A to 30D): end rod member, 32: body part, 34: shaft part, 34a: end part, 36: gear, 38: stationary structure, 44: sheet-like member, 46: fold line, 50: window frame, 50a: upper part of vehicle body, 50b: lower part of vehicle body, 52: concave portion, 54: side window, 66: stopper member

Claims (8)

A light shielding device for a side window provided on a window frame of a vehicle body of a railway vehicle,
A pair of rail members arranged to face the window frame so as to sandwich the side window in a front view of the side window;
Two end rod members that extend between the pair of rail members and that engage with the rail members such that both ends are movable along the pair of rail members;
The two end bar members are held between the two end bar members and extend so as to connect between the pair of rail members, and the two end bar members extend along the pair of rail members. A sheet-like member having a size that covers at least the side window together with the two end rod members or alone in a state where both ends of the rail member are separated from each other,
The sheet-like member is pleated so that a plurality of folds parallel to the extending direction of the two end bar members are formed, and the light-shielding device is characterized.   The shading device according to claim 1, wherein the pair of rail members are installed along a longitudinal direction of the vehicle body while being separated from each other in a vertical direction of the vehicle body.   Of the pair of rail members, a rail member installed on the upper side of the vehicle body is installed in a recess provided in an upper part of the window frame on the vehicle body with a depth larger than the thickness of the rail members in the vertical direction of the vehicle body. The shading device according to claim 2, wherein the shading device is provided. A table is provided along the lower part of the vehicle body of the window frame,
The light shielding device according to claim 2, wherein a rail member installed on the lower side of the vehicle body of the pair of rail members is installed on the upper side of the vehicle body with respect to the table.   The light-shielding device according to claim 1, wherein the pair of rail members are installed along a vertical direction of the vehicle body while being separated from each other in a longitudinal direction of the vehicle body.   The shading device according to claim 5, wherein each of the two end rod members has a stationary structure for resting at an arbitrary position of the pair of rail members. Each of the pair of rail members has a tubular shape with a rectangular cross section in the extending direction, and the first side of the rectangular portion corresponding to the first side facing the other rail member. An opening is provided along the extending direction of the rail member in the vicinity of the center in the extending direction of the rail member, and on the inner surface of the rail member at a portion corresponding to the second side located inside the rectangular vehicle body. , A rack rail having a plurality of teeth extending along the rail member,
Each of the two end bar members is a cylindrical main body, and is rotatably inserted into the main body so that both ends project from the openings into the pair of rail members. And a gear that is rotatably attached to both ends of the shaft portion together with the shaft portion and that engages with a plurality of teeth of the rack rail inside the pair of rail members. The light-shielding device according to any one of claims 1 to 6.   Adjacent to at least one extension direction end of both of the pair of rail members, engaged in a direction parallel to the extension direction of the rail member, and a length larger than each of the two end bar members. 8. The light-shielding device according to claim 1, further comprising a detachable stopper member having:

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