JP5749539B2 - Railway vehicle seat - Google Patents

Description

  The present invention relates to a railcar seat.

  In the railcar seat, the components are assembled in order from the floor toward the top. Each of these components has a structure that cannot be unitized, or has a structure that cannot be stably placed even if unitized.

  Therefore, seats with various structures have been proposed (see, for example, Patent Documents 1 and 2).

  In the thing of patent document 1, the bearing which supports the horizontal beam which makes the cross-sectional triangle comprised by the monospan of an extrusion type | mold material so that rotation is possible in the center of the lower surface part facing right below is provided, The seat frame or An armrest frame is attached. Moreover, the thing of patent document 2 is being integrally fixed to the bottom face side of the base frame of a stool to the rotating plate of the rotating mechanism in the center of the upper surface part of a leg stand.

Japanese Patent Laying-Open No. 2005-329103 (paragraphs 0033 and 0034 and FIG. 1) Japanese Patent Laying-Open No. 2008-87687 (paragraph 0021 and FIGS. 4 and 5)

  At present, it is impossible to make a unit that can improve productivity, and it is impossible to assemble and assemble parts in one work space to make a single seat.

  If the inventor forms the rotating table (upper table) of the turntable with high precision by machining, the seat component is formed as a seat assembly in which the seat cushion and the seat back are integrally formed independently for each passenger. The present invention has been made with the idea that it can be directly fixed to the upper table) using fasteners such as bolts and nuts.

  An object of the present invention is to apply a railcar seat that can be fixed directly to an upper table of a turntable using a fastener as a unit of seat parts and is easy to assemble.

The invention of claim 1 is a railcar seat in which seat parts are assembled on a turntable, and the turntable has a rectangular plate shape in which an engaged recess or an engaged protrusion is formed by machining. And a lower table that rotatably supports the upper table, and the seat part has a seat cushion and a seat back that are independently integrated for each passenger and has a built-in reclining mechanism. In the seat assembly, the lower frame of the seat cushion has an engaging convex portion or an engaging concave portion that is detachably engaged with the engaged concave portion or the engaged convex portion, and the engaging convex portion of the seat assembly. The seat assembly is positioned on the upper table by the engagement between the engagement portion or the engagement recess and the engagement recess or engagement protrusion of the upper table. Characterized in that it is directly fixed with fasteners Te.

In this manner , the rectangular plate-shaped upper table of the turntable is accurately formed by machining including the engaged concave portion or the engaged convex portion, and a unitized seat component ( Since the lower frame of the seat cushion is provided with an engaging convex portion or an engaging concave portion that is detachably engaged with the engaged concave portion or the engaged convex portion), the upper side of the turntable The seat part can be accurately positioned on the table, and can be directly fixed using a fastener, so that assembly is facilitated.

Further, since the seat parts to be unitized are unitized, the reclining mechanism can be easily incorporated therein.

  In this case, as described in claim 2, the upper table may be configured to have a bead that is formed by pressing to increase rigidity, and as described in claim 3, the upper table includes: It is good also as a structure which has the reinforcing material which consists of model steel etc. which raise rigidity and is fixed using the fastener.

  If it does in this way, the rigidity of an upper table can be raised as needed, without impairing the attachment accuracy of seat parts, and without adopting a welding structure.

As described in claim 4, wherein the seat part is to have a table for seating a passenger after being housed removably in the housing in a recess formed on the back side of the seat back, for the rear seat passengers The table may be configured to be attached to the seat back .

  In this way, since the seat parts to be unitized are unitized, it is possible to easily incorporate the table for the rear seat passenger so that it can be taken out.

According to a fifth aspect of the present invention, an armrest is positioned on the upper side of the upper table so as to be adjacent to the seat part and can be directly fixed using a fastener.

  In this way, the armrest can also be positioned on the upper table of the turntable and fixed directly using the fastener, similarly to the seat part, which is advantageous in realizing easy assembly.

As described in claim 6 , it is desirable that an armrest between seats is attached to a side portion of the seat back.

  This makes it easier to assemble than attaching an inter-seat armrest separately.

According to a seventh aspect of the present invention, the console box positioned between the left and right seat parts may be directly fixed to the upper side of the upper table using a fastener.

  In this way, when the console box is provided, the console box can be similarly assembled with high accuracy.

  In the present invention, as described above, the upper table of the turntable is accurately formed by machining, and the unitized seat parts are attached to the upper table. Therefore, the seat parts are attached to the upper table of the turntable. Can be positioned and fixed directly using a fastener, which facilitates assembly.

1 is a perspective view showing an embodiment of a railcar seat according to the present invention. It is the perspective view which looked at seat components from the back side. It is a figure similar to FIG. 1 which shows other embodiment. It is a figure similar to FIG. 1 which shows another embodiment. It is a figure similar to FIG. 1 which shows another embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of a railcar seat according to the present invention.

  As shown in FIG. 1, a railcar seat 1 according to the present invention has left and right seat parts 12 </ b> L and 12 </ b> R assembled on a turntable 11.

  The turntable 11 has a rectangular plate-like upper table 13 machined with high precision using a machining center or the like, and a lower table 14 that rotatably supports the upper table 13 via a rotation mechanism (not shown).

  Each of the seat parts 12L and 12R is a seat assembly in which a seat cushion 12La and 12Ra (seat portion) and a seat back 12Lb and 12Rb (back) are independently and integrally formed for each passenger. Further, a so-called well-known reclining mechanism is incorporated, and the inclination angle of the seat backs 12Lb and 12Rb with respect to the seat cushions 12La and 12Ra can be adjusted. Here, since the seat cushions 12La, 12Ra and the seat backs 12Lb, 12Rb are integrally formed independently for each passenger, it is easy to incorporate a reclining mechanism.

  In each of the seat parts 12L and 12R (seat assembly), the lower frame 18 of the seat cushions 12La and 12Ra has a plurality of engaging protrusions 18a. On the other hand, a plurality of engaged holes 13a (engaged recesses) that are detachably engaged with the engagement protrusions 18a are formed in the upper table 13 with high precision by machining. Then, the seat parts 12L, 12R and the upper table 13 are positioned by the engagement relationship between the engagement convex portion 18a and the engaged hole 13a, and both are fixed by using fasteners such as bolts and nuts.

  Further, the armrests 15L and 15R are positioned adjacent to the outside of the seat parts 12L and 12R on the upper table 13, and are directly fixed using fasteners. That is, an engagement hole (not shown) formed in the lower frame of the armrests 15L and 15R is formed in the upper table 13 with an engaged hole 13b that is detachably engaged. Positioning is performed, and both are fixed using fasteners such as bolts and nuts.

  On the other hand, the inter-seat armrest 16 is attached to a side portion of the seat back 12Rb of the seat component 12R and is a part of the seat assembly. The inter-seat armrest 16 can be stored in a storage recess 12A formed across the seat backs 12Rb and 12Lb when not in use.

  Further, as shown in FIG. 2, a storage recess 12Rc is formed on the back side of the seat back 12R, and a table 17 for a rear seat passenger is provided in the storage recess 12Rc so as to be removable. FIG. 2 shows a use state in which the table is taken out. The table 17 is also stored in the seat back 12L.

  Thus, as shown only in the seat part 12R and the armrest 15R in FIG. 1, the seat assembly is formed by the engagement relationship between the engagement convex part on the seat part 12R and armrest 15R side and the engaged holes 13a and 13b of the upper table 13. The 12R and the armrest 15R are accurately positioned at predetermined positions on the upper table 13, and are fixed by directly fastening them using fasteners (bolts, nuts, etc.) not shown.

  Thus, by positioning and attaching the seat parts 12L and 12R, the reclining mechanism (not shown) assembled between the seat parts 12L and 12R, the inter-seat armrest 16, the table 17 and the like can be assembled together. And easy assembly. Since this assembly can be performed in a stable working posture on the surface plate at the assembly site, the assembly can be performed in a short time and the productivity can be improved.

  If necessary, if a back shell, magazine rack, console box, table unit, elbow rest, etc. are provided, they should be fixed to the upper table 13 of the turntable 11 individually using a fastener. Is possible.

  In addition, since the left and right seat parts 12L and 12R are only fixed to the turntable 11 (upper table 13) with fasteners, when they are carried into the vehicle, the assembled parts are taken from the vehicle doorway or passage. Even if it is large, it can be disassembled into unit units such as the seat parts 12L and 12R and the turntable 11, and can be easily carried into the vehicle. This is because a certain number of parts are unitized as one group so that they can be appropriately disassembled to a required size. Therefore, even if it is a size that cannot normally be carried in as a whole, it can be disassembled and delivered in units, and since it is disassembled in units, it can be easily assembled in the vehicle. .

  On the other hand, since it can be disassembled at the time of maintenance in the same manner as at the time of carrying in, it can be carried out in units, and maintenance work outside the vehicle can be easily performed.

  In particular, by adopting a structure that is compatible with each unit, in the case of maintenance, the units can be replaced in a short time, and the working time in the vehicle can be shortened. In addition, since the unit removed from the vehicle can be repaired at another work place at a later date, the workability of the repair is improved.

  The present invention is not limited to the embodiment described above, and can be implemented with the following modifications.

  (i) In the above-described embodiment, the seat components 12L and 12R (seat assemblies) have the engaging protrusions 18a on the lower frame 18 of the seat cushions 12La and 12Ra, while the upper table 13 has the engaging protrusions 18a. An engagement hole 13a (engaged recess) that is detachably engaged is provided, but conversely, an engagement recess is formed in the lower frame 18 of the seat cushion 12La, 12Ra, and the engagement is performed on the upper table 13. An engaged protrusion that engages and disengages with the recess may be provided, and the positioning is not limited to the engagement between the engaging protrusion and the engaged recess (or the engaged hole). If possible, the shapes of the engaging portion and the engaged portion are not particularly limited.

  (ii) In the above embodiment, the upper table 13 is formed by machining a rectangular flat plate using a machining center or the like. However, the present invention is not limited to this, and the upper table 13 is pressed to the upper table. By processing, a bead that protrudes upward can be formed, and the rigidity can be increased as compared with a simple flat rectangular plate. In addition, as shown in FIG. 3, the upper table 13A has a structure in which reinforcing members 21 and 22 made of steel and the like are fixed using fasteners in order to increase rigidity, and the upper table 13A is positioned for positioning (upper table 13A It is also possible to adopt a configuration in which the engaged holes 21 a and 21 a that are engaged recesses are provided in the reinforcing member 21.

  (iii) As shown in FIG. 4, it is also possible to provide a configuration in which a space is provided in the lower portion of the seat cushion and various devices are provided in the space. In this case as well, the upper table formed with high precision by machining can be used for accurate positioning as in the case of the seat, and can be directly fixed using a fastener. In addition, by removing the left and right armrests 15L and 15R, the inside of the void can be seen, which is advantageous in maintenance and the like.

  (iv) It is also possible to provide a so-called console box 31 in which a foldable table unit or the like is built, as shown in FIG. 5, between the left and right seat parts 12L and 12R. Also in this case, the console box 31 is similarly positioned with respect to the upper table 13 and is directly fixed using a fastener. Also when this console box is provided, the left and right armrests 15L and 15R can be separated from the seat parts 12L and 12R.

DESCRIPTION OF SYMBOLS 1 Rail vehicle seat 11 Turntable 12L, 12R Seat part 12La, 12Ra Seat cushion 12Lb, 12Rb Seat back 13, 13A Upper table 13a, 13b Engagement hole (engaged recess)
14 Lower table 15L, 15R Armrest 16 Seat-to-seat armrest 18 Lower frame 18a Engaging projections 21, 22 Reinforcing material 31 Console box

Claims (7)

A railcar seat in which seat parts are assembled on a turntable,
The turntable has a rectangular plate-like upper table in which an engaged recess or an engaged protrusion is formed by machining, and a lower table that rotatably supports the upper table,
The seat part is a seat assembly in which a seat cushion and a seat back are integrally formed independently for each passenger and a reclining mechanism is built in, and the engaged recess or the engaged protrusion is formed in a lower frame of the seat cushion. It has an engaging convex part or engaging concave part that is detachably engaged with the part,
The seat assembly is positioned on the upper table by the engagement of the engaging convex portion or the concave portion of the seat assembly with the engaged concave portion or the convex portion of the upper table, and directly using a fastener. A railcar seat characterized by being fixed.   The railcar seat according to claim 1, wherein the upper table has a bead formed by press working to increase rigidity.   The railcar seat according to claim 1, wherein the upper table includes a reinforcing member made of a steel plate or the like for increasing rigidity and fixed using a fastener. The seat part may have a table for seating a passenger after being housed removably in the housing in a recess formed on the back side of the seat back, the table for the rear seat passengers is attached to the seat back The railcar seat according to any one of claims 1 to 3. The railcar seat according to any one of claims 1 to 3, wherein an armrest is positioned on the upper side of the upper table so as to be adjacent to the seat part and is directly fixed using a fastener.   The seat for railcars according to any one of claims 1 to 3, wherein an inter-seat armrest is attached to a side portion of the seat back. The railcar seat according to any one of claims 1 to 3, wherein a console box positioned between the left and right seat parts is directly fixed to the upper side of the upper table using a fastener.

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