The present invention relates to the structure of a driver's cab and the structure of a railcar including the driver's cab.
A railcar typically adopts a dual structure constituted by a bodyshell and an interior member provided at an interior side of the bodyshell. The bodyshell is formed by welding metal, such as stainless steel or aluminum. Therefore, welding distortion occurs at the bodyshells in a manufacturing process, so that size differences among the bodyshells are comparatively large. Further, since the interior member is attached to an internal frame configured at the interior side of the bodyshell, the interior member has to be a member that is easy for a worker to attach and handle. To, for example, secure a wide interior space, a thin member is used as the interior member in many cases. In order that an internal size of the driver's cab becomes constant, a liner having an appropriate thickness is inserted between the internal frame and the interior member.
A large number of devices, such as a control device, are arranged in the driver's cab. These devices are attached to the internal frame of the bodyshell. However, the position of the internal frame may be displaced from a predetermined position by the welding distortion. In this case, it is necessary to, in manufacturing steps, make screw holes with a tap and adjust the positions of attachment holes of machinery and the positions of the screw holes. As above, there are problems that: the welding distortion of the bodyshell of the narrow driver's cab to which a large number of devices are attached significantly affects the steps; and it is difficult to perform efficient manufacturing work.
Here, PTL 1 proposes a railcar manufacturing method by which an entire carbody is formed in such a manner that: a driver's cab unit including the driver's cab of the carbody and a tip end portion of the railcar is separately formed; and this driver's cab unit is combined with the other portion of the carbody. According to this manufacturing method, the cost reduction can be realized by the rationalization of the work.
PTL 1: Japanese Laid-Open Patent Application Publication No. 11-268640
However, the manufacturing method described in PTL 1 requires major work of combining the driver's cab unit with the other portion of the carbody. In addition, according to the manufacturing method of PTL 1, work of adjusting the internal size of the driver's cab and work of coupling the interior member to the bodyshell need to be performed at the same time. Therefore, there are problems that it is difficult to secure the dimensional accuracy; and the work efficiency is low Further, in work of attaching the machinery to the internal frame of the bodyshell, it is still necessary to perform work of adjusting the positions of the machinery relative to the internal frame of the bodyshell. The present invention was made in view of the above circumstances, and an object of the present invention is to provide a railcar driver's cab whose assembly work can be efficiently performed.
A railcar driver's cab according to one aspect of the present invention includes: side bodyshells; a roof bodyshell; and an interior panel unit including a pair of side panels located at an inner side of the side bodyshells, a ceiling panel located at an inner side of the roof bodyshell, and a back-surface panel that separates the driver's cab from a passenger room, wherein: at least one of the panels includes an opening portion through which an adjusting member is inserted, the adjusting member being configured to adjust positions of the one panel and the side bodyshell or positions of the one panel and the roof bodyshell; an interior space of the driver's cab is defined by coupling the adjacent panels to one another; and the adjusting member adjusts a position of the driver's cab relative to the side bodyshell or the roof bodyshell. According to this configuration, after the internal size of the driver's cab is secured by coupling the panels to one another, the coupled panels can be coupled to the bodyshell. A position of the interior space of the driver's cab relative to the bodyshell can be adjusted by the adjusting member. Therefore, the present invention can provide a railcar driver's cab whose assembly work can be efficiently performed while easily securing dimensional accuracy.
As above, the present invention can provide a railcar driver's cab whose assembly work can be efficiently performed.
Hereinafter, an embodiment will be explained in reference to the drawings. In the following explanations and drawings, the same reference signs are used for the same or corresponding components, and a repetition of the same explanation is avoided.
First, a driver's cab 101 of a railcar 100 according to the present embodiment will be explained in reference to
As shown in
The bodyshell 10 forms an outer portion of the driver's cab 101 and includes a pair of side bodyshells 15 and a roof bodyshell 16 that connects upper portions of the side bodyshells 15. The bodyshell 10 is formed by welding metal, such as stainless steel or aluminum. Therefore, as described above, the welding distortion occurs at the bodyshells 10 in a manufacturing process of the bodyshells 10, so that comparatively large size differences are caused among the railcars. As shown in
The interior panel unit 20 is arranged at the interior side of the bodyshell 10 and defines an interior space of the driver's cab. The interior panel unit 20 is mainly constituted by the side panels 30, the ceiling panel 40, and a back-surface panel 50. The interior panel unit 20 has predetermined stiffness. Here, the predetermined stiffness is, for example, such stiffness that the interior panel unit 20 does not deform even if crews and passengers in the railcar apply their weight to the interior panel unit 20 and the machinery is attached to the interior panel unit 20 after the side panels 30, the ceiling panel 40, and the back-surface panel 50 are coupled to each other to be attached to the bodyshell 10. As above, since the interior panel unit 20 has the predetermined stiffness, the number of internal frames 12 in the bodyshell 10 can be made smaller than that of a conventional bodyshell. Thus, the weight of a carbody can be reduced.
The side panels 30 are panels arranged at the interior side of the side bodyshells 15 (that is, at both railcar-width-direction sides of the driver's cab 101, respectively). Each of the side panels 30 is a plate-shaped member having predetermined stiffness, and a material thereof is not especially limited. For example, a composite plate obtained by stacking a metal plate and a non-foamed resin plate can be used as the side panel 30. Devices and wires (hereinafter may be simply referred to as “machinery”) can be directly fixed to the side panels 30. With this, it becomes unnecessary to fix the machinery to the internal frames 12. Thus, the machinery can be fixed to predetermined positions without being affected by the welding distortion of the internal frame 12.
It is desirable that screw holes used to attach the devices be formed on the side panel 30 before arranging the side panel 30. With this, attachment positions of the machinery become apparent to a worker, and the adjustment of the attachment positions of the machinery becomes unnecessary. Thus, the work efficiency improves. As in conventional cases, there is a possibility that if the screw holes are made after the side panel 30 is arranged, chips get into a space between the side panel 30 and the bodyshell 10. Especially in a case where electrical devices and electric wires are arranged, the chips need to be removed in order to prevent short circuit and the like. However, by making the screw holes in advance, work of removing the chips does not have to be performed.
The side panel 30 is formed in a flat plate shape as a whole and includes: a main body portion 33 that defines the interior space of the driver's cab 101 in the railcar width direction; and a coupling portion 32 that contacts the ceiling panel 40. The coupling portion 32 includes a contact surface 34. The side panel 30 includes opening portions into each of which a below-described shim 21 (corresponding to an adjusting member) can be inserted. Examples of the opening portions include: an opening portion 31 to which an entrance door 35 for the crews shown in
The ceiling panel 40 is a panel that is arranged at the interior side of the roof bodyshell and becomes a ceiling of the driver's cab 101. The ceiling panel 40 is a plate-shaped member having stiffness, and a material thereof is not especially limited. For example, a metal plate can be used as the ceiling panel 40. As with the side panel 30, the machinery may be directly attached to the ceiling panel 40 by giving predetermined stiffness to the ceiling panel 40. The ceiling panel 30 includes opening portions. Examples of the opening portions include: opening portions to which the devices, such as a speaker, are attached; the screw holes; and a work hole for coupling the ceiling panel 40 to the side panel 30 and the back-surface panel 50. As with the side panel 30, it is preferable to form the opening portions of the ceiling panel 40 in advance. The internal frames 12 located at the ceiling side are arranged so as not to overlap the opening portion of the ceiling panel 40 and so as to be located in the vicinity of the opening portion of the ceiling panel 40. This is because work with respect to the internal frames 12 can be easily performed through the opening portion of the ceiling panel 40.
The ceiling panel 40 is formed in a flat plate shape as a whole and includes: a main body portion 42 that defines the interior space of the driver's cab 101 in the vertical direction; and coupling portions 41 respectively located at both railcar-width-direction end portions of the main body portion 42. Each of the coupling portions 41 is formed so as to be bent upward from the main body portion 42 and includes a contact surface 43 facing a railcar-width-direction outer side. Further, the contact surfaces 43 respectively located at both railcar-width-direction sides are formed in parallel with each other. The ceiling panel 40 and the side panel 30 are coupled to each other in a state where the contact surface 43 of the ceiling panel 40 and the contact surface 34 of the side panel 30 surface-contact each other. This coupling is performed through the work hole of the ceiling panel 40 by using connecting bolts 44 that penetrate the coupling portion 41. As above, since the side panel 30 and the ceiling panel 40 are coupled to each other in a state where the coupling portions 41 and 32 (contact surfaces 43 and 34) surface-contact each other, the ceiling panel 40 serves as a gauge. To be specific, a distance between the side panels 30 is determined based on a railcar-width-direction size of the ceiling panel 40, and the side panels 30 are arranged in parallel with each other since they are arranged along the contact surfaces 43. In the present embodiment, the coupling portions 41 of the ceiling panel 40 are formed to be bent toward an outdoor side. Therefore, the contact surfaces 43 (connecting bolts 44) are invisible from the interior side, so that the appearance does not deteriorate.
In the present embodiment, a cover panel 45 is attached to the ceiling panel 40 so s to cover a lower surface of the ceiling panel 40. By attaching the cover panel 45, the machinery attached to the ceiling panel 40 is covered. Thus, the ceiling of the driver's cab 101 can be formed so as to have a good appearance. By forming an open-close portion on the cover panel 45, the worker can reach the internal frames 12 through the open-close portion of the cover panel 45 and the opening portion of the ceiling panel 40.
As above, in the present embodiment, the ceiling panel 40 and the side panel 30 are coupled to each other in a state where the coupling portions 41 and 32 surface-contact each other. However, such configuration is not limited to the above case. For example, a coupled part where the ceiling panel 40 and the side panel 30 are coupled to each other may be configured as shown in
First,
The back-surface panel 50 is a panel that separates the driver's cab 101 from the passenger room. The back-surface panel 50 is a plate-shaped member having stiffness. As shown in
As shown in
If the side panel 30 and the ceiling panel 40 are configured as in Modification Example 2 shown in
As above, the interior space of the driver's cab can be defined by coupling the adjacent panels of the interior panel unit 20 to one another. With this, an interior size (internal size) of the driver's cab can be secured before coupling the interior panel unit 20 to the bodyshell 10. In addition, the machinery can be directly attached to the interior panel unit 20. Therefore, after the machinery is mounted on the interior panel unit 20, the interior panel unit 20 can be carried in the bodyshell 10. Thus, the work efficiency improves.
Next, the attachment of the interior panel unit 20 and the bodyshell 10 will be explained. As described above, since the welding distortion occurs at the bodyshell 10 formed by welding, the positioning between the side panel 30 and the bodyshell 10 and the positioning between the ceiling panel 40 and the bodyshell 10 need to be performed. Specifically, the shims 21 are respectively inserted into a gap between the side panel 30 and the internal frame 12 of the bodyshell 10 and a gap between the ceiling panel 40 and the internal frame 12 of the bodyshell 10. The position of the driver's cab 101 relative to the bodyshell 10 can be adjusted by inserting an appropriate number of shims 21 or the shim 21 having an appropriate thickness into the gaps each between the interior panel unit 20 and the bodyshell 10. In the present embodiment, the shims 21 do not have to be inserted into all the gaps each between the internal frame 12 and the interior panel unit 20 but may be inserted into a part of the gaps according to need. For example, regarding the vicinity of the opening portion 31 of the side panel 30, the shims 21 are inserted at four places in the vicinity of the opening portion 31, and fixing bolts 14 for fixing the bodyshell 10 and the interior panel unit 20 are attached to these places. As above, since the internal frames 12 are arranged in the vicinity of the opening portion within the reach of the worker, work of determining the number of shims 21 to be inserted and the thickness of the shim 21 and work of inserting the shims 21 become easy. As above, after the interior size of the driver's cab is secured, work of adjusting the position of the driver's cab relative to the bodyshell 10 can be performed. In the present embodiment, the number of portions where the bodyshell 10 and the panels contact one another (portions into which the liners are inserted) is smaller than conventional cases. This is because in the present embodiment, the interior panel unit 20 is fixed to the bodyshell 10 mainly for the purpose of preventing the positioning error of the interior panel unit 20, not for the purpose of supporting the panels (preventing the panels from falling off) as in conventional cases.
The step-shaped screw base 70 is a member on which a screw hole to which a predetermined member is fixed is formed. As shown in
For example, the step-shaped screw base 70 of the present embodiment is useful when attaching a cover member 22 shown in
As above, a railcar driver's cab according to the present embodiment includes: side bodyshells; a roof bodyshell; and an interior panel unit including a pair of side panels located at an inner side of the side bodyshells, a ceiling panel located at an inner side of the roof bodyshell, and a back-surface panel that separates the driver's cab from a passenger room, wherein: at least one of the panels includes an opening portion through which an adjusting member is inserted, the adjusting member being configured to adjust positions of the one panel and the side bodyshell or positions of the one panel and the roof bodyshell; an interior space of the driver's cab is defined by coupling the adjacent panels to one another; and the adjusting member adjusts a position of the driver's cab relative to the side bodyshell or the roof bodyshell.
According to this configuration, after the internal size of the driver's cab is secured by coupling the panels to one another, the coupled panels can be coupled to the bodyshell. A position of the interior space of the driver's cab relative to the bodyshell can be adjusted by the adjusting member. Therefore, the present invention can provide a railcar driver's cab whose assembly work can be efficiently performed while easily securing dimensional accuracy.
In the railcar driver's cab according to the present embodiment, the opening portion may be at least one of an entrance, a window opening, a device attaching portion, a screw hole, and a work hole.
According to this configuration, it is unnecessary to additionally provide an opening portion through which the adjusting member is inserted. Therefore, work steps do not increase, and convenience is high.
In the railcar driver's cab according to the present embodiment, the adjusting member may be arranged only in the vicinity of the opening portion.
According to this configuration, by inserting the adjusting member in the vicinity of the opening portion, a worker can adjust the position of the driver's cab relative to the bodyshell. Therefore, the work efficiency becomes higher than conventional cases.
The railcar driver's cab according to the present embodiment may be configured such that: the panels respectively include coupling portions by which the adjacent panels are coupled to each other in a state where the coupling portions surface-contact each other; and the interior space of the driver's cab is defined by the side panels, the ceiling panel, and the back-surface panel, which are coupled to one another.
According to this configuration, the driver's cab can be formed by coupling the panels to one another. Therefore, the work becomes easy, and the interior size of the driver's cab can be secured with a high degree of accuracy.
In the railcar driver's cab according to the present embodiment, the coupling portions may be formed so as to be bent toward an outdoor side.
According to this configuration, the interior size of the driver's cab can be secured by simple work.
In the railcar driver's cab according to the present embodiment, an electrical device and a wire for connecting the electrical device may be attached to the interior panel unit.
According to this configuration, after the electrical device and the wire are arranged, the driver's cab can be carried in the bodyshell and attached to the bodyshell. Therefore, the work efficiency improves, and the electrical device and the wire are prevented from being damaged when attaching the interior panel unit to the bodyshell.
The railcar driver's cab according to the present embodiment may further include a screw base provided at an interior-side surface of the interior panel unit, wherein the screw base may include a fixing portion attached to the interior-side surface of interior panel unit and a seat portion separated from the fixing portion toward an interior side.
According to this configuration, even in a case where the screw hole or the like needs to be formed when attaching the cover member or various devices to the interior panel unit, chips or the like do not drop into a space between the interior panel unit and the bodyshell. Therefore, the quality of the railcar can be improved, and work, such as cleaning of the chips, is unnecessary.
A railcar according to the present embodiment includes the driver's cab according to the present embodiment described above. Therefore, the assembly work can be efficiently performed from the viewpoint of the entire railcar.
The foregoing has explained the embodiment in reference to the drawings. However, specific configurations are not limited to the embodiment. Design changes and the like within the scope of the present invention are included in the present invention.
According to the present invention, the assembly work can be performed efficiently. Therefore, the present invention is useful in the technical field of railcars.
10 bodyshell
15side bodyshell
16 roof bodyshell
20 interior panel unit
21 shim
30 side panel
31 opening portion
32 coupling portion
33 main body portion
40 ceiling panel
41 coupling portion
42 main body portion
50 back-surface panel
59 coupling portion
70 step-shaped screw base
71 fixing portion
72 seat portion
100 railcar
101 driver's cab
Number | Date | Country | Kind |
---|---|---|---|
2012-071975 | Mar 2012 | JP | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/JP2013/002056 | 3/26/2013 | WO | 00 |