JP6376696B2 - Underfloor equipment for railway vehicles - Google Patents

Description

  The present invention relates to a railway vehicle underfloor comprising a housing provided under the floor of a railway vehicle, components housed in the housing, and a lid that is detachably attached to an opening formed in a bottom surface of the housing. Concerning placement equipment.

  Conventionally, as this type of underfloor equipment for railway vehicles, the lid body is provided with a plurality of tongue pieces projecting outward from a pair of opposite sides of the lid body, and the lid body is opened on the bottom surface of the housing. What is provided below a tongue piece part in the state where it was equipped, and provided with a plurality of receiving piece parts which a tongue piece part contacts when a lid body falls, and what prevents a lid body from dropping from a case. It is known (see, for example, Patent Document 1).

  In this structure, each tongue piece and each receiving piece are each formed in a flat plate shape extending in the opposite direction of the opposite side. Therefore, when the lid body falls, even if the tongue piece portion of the lid abuts on the receiving piece portion of the housing, the tongue piece portion moves in a direction perpendicular to the opposing direction of the opposite side with respect to the receiving piece portion. Cannot be restricted, and the tongue piece part may come off from the receiving piece part and the lid body may fall off the casing.

JP 2013-166512 A

  In view of the above points, an object of the present invention is to provide an underfloor arrangement device for a railway vehicle that can reliably prevent the lid from falling off the casing.

  In order to solve the above-described problems, the present invention provides a housing provided under the floor of a railway vehicle, components housed in the housing, and a lid that is detachably attached to an opening formed in the bottom surface of the housing. And a plurality of tongue pieces projecting outward from a pair of opposite sides of the lid body, and the lid body on the bottom surface of the housing. In the state where the tongue piece portion is provided in a state where the tongue piece portion is in contact with the tongue when the lid body is dropped, the tongue piece portions are opposed to the opposite sides. The side edge portions on both sides of the direction orthogonal to the direction are formed in a downward groove shape bent downward, and each receiving piece portion is an upward surface in which the side edge portions on both sides in the direction orthogonal to the opposite direction of the opposite side are bent upward. It is formed in a groove shape.

  According to the present invention, when the lid body is dropped, the lower end of the side edge portion of the tongue piece portion abuts on the bottom portion of the receiving piece portion, and the tongue piece portion can be prevented from moving below the receiving piece portion, When the side edge of the tongue piece abuts on the side edge of the receiving piece, the tongue piece moves in a direction perpendicular to the opposite direction of the opposite side of the lid, and the tongue piece is detached from the receiving piece. Can be prevented. Therefore, it is possible to reliably prevent the lid from falling off the housing.

The front view of the underfloor arrangement equipment for rail vehicles of the embodiment of the present invention. The perspective view which looked at the underfloor equipment for rail vehicles of FIG. 1 from the A direction. Sectional drawing cut | disconnected by the III-III line | wire of FIG. FIG. 4 is a cut side view taken along line IV-IV in FIG. 2. (A) And (b) is the cut | disconnected side view and sectional drawing which show when the cover body of the railway vehicle underfloor arrangement | positioning apparatus of embodiment falls. (A) And (b) is a cut side view and sectional view showing the case where the lid of the railway vehicle underfloor arrangement device of the embodiment falls and moves in a direction orthogonal to the opposing direction of a pair of opposite sides.

  With reference to FIGS. 1 to 4, an underfloor arrangement device for a railway vehicle according to an embodiment of the present invention is a power conversion device for a railway vehicle, and a housing 2 provided under the floor of the railcar 1 and the housing 2. The electronic component 3 for power conversion accommodated in the inside and the lid body 4 which is detachably attached to the opening 21 opened in the bottom surface of the housing 2 are provided. The opening 21 is formed on the upper surface of a concave portion 22 that is formed in the central portion in the horizontal direction on the bottom surface of the housing 21 and is recessed upward.

  A flange 21 a surrounding the opening 21 is provided inside the housing 2. A plurality of rotary clamps 41 having clamp claws 41 a at the upper end are fixed to the outer edge of the lid 4. Then, the clamp claw 41 a is rotated and engaged with the flange 21 a so that the lid 4 is attached to the opening 21. In addition, the lid 4 is provided with a pair of recesses 42 and 42 that are recessed above the other portions at a predetermined interval, and is provided with a shaft portion 42 a that crosses the lower surface of each recess 42. The shaft portion 42 a functions as a handle when the lid 4 is attached to the opening 21.

  Here, the lid body 4 is provided with a plurality of (for example, four) tongue pieces 43 projecting outward from the pair of opposite sides of the lid body 4, that is, the left and right opposite sides in FIG. On the bottom surface of the body 2, the lid 4 is positioned below the tongue piece 43 with the opening 21 attached. When the clamp claw 41 a is detached from the flange 21 a and the lid 4 is dropped, the tongue piece 43 is A plurality of (for example, four) receiving piece portions 23 that are in contact with each other are provided.

  Each tongue piece 43 is formed in a downward groove shape in which side edge portions 43b on both sides in a direction orthogonal to the opposing direction of the opposite side are bent downward. Each receiving piece portion 23 is formed in an upward groove shape in which side edge portions 23b on both sides in a direction orthogonal to the opposing direction of the opposite side are bent upward.

  More specifically, each tongue piece 43 is formed in a groove shape including a flat upper portion 43a extending in the opposite direction of the opposite side and side edge portions 43b depending from both side edges of the upper portion 43a. Each receiving piece portion 23 is formed in a groove shape including a bottom portion 23 a extending in the opposite direction of the opposite side and a side edge portion 23 b standing upright from both side edges of the bottom portion 23 a and wider than the tongue piece portion 43. Note that either the tongue piece portion 43 or the receiving piece portion 23 may be wide or may have the same width.

  When mounting the lid body 4, first, the lid body 4 is pushed up in a state where the tongue piece portion 43 is shifted from the position directly below the receiving piece portion 23. Next, the lid body 4 is slid in a direction orthogonal to the facing direction of the opposite side so that the tongue piece 43 is positioned immediately above the receiving piece 23. Finally, the clamp pawl 41 a is engaged with the flange 21 a of the housing 2.

  According to the present embodiment, when the clamp claw 41a is detached from the flange 21a and the lid body 4 is dropped, the lower end of the side edge 43b of the tongue piece 43 is connected to the receiving piece 23 as shown in FIGS. By contacting the bottom 23 a and preventing the tongue piece 43 from moving below the receiving piece 23, the side edge 43 b of the tongue 43 is in contact with the side 23 b of the receiving piece 23. The tongue piece 43 can be prevented from moving from the receiving piece 23 by moving the tongue piece 43 in a direction perpendicular to the opposing direction of the opposite side of the lid 2. Therefore, it is possible to reliably prevent the lid body 4 from falling off the housing 2.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, the housing is not limited to the shape of the above embodiment, and may be a rectangular parallelepiped, for example. Moreover, in the said embodiment, although the cover body 4 is mounted | worn with the opening 21 using the clamp 41, you may mount | wear using another fixing member.

  DESCRIPTION OF SYMBOLS 1 ... Railway vehicle, 2 ... Housing | casing, 21 ... Opening, 23 ... Receiving piece part, 23b ... Side edge part, 3 ... Parts, 4 ... Cover body, 43 ... Tongue piece part, 43b ... Side edge part.

Claims (1)

An underfloor arrangement device for a railway vehicle comprising a housing provided under the floor of the railway vehicle, components housed in the housing, and a lid that is detachably attached to an opening formed in the bottom surface of the housing. And
The lid body is provided with a plurality of tongue pieces projecting outward from a pair of opposite sides of the lid body, and positioned on the bottom surface of the housing below the tongue piece portion with the lid body attached to the opening. Then, in what is provided with a plurality of receiving pieces that the tongue piece comes into contact with when the lid is dropped,
Each tongue piece is formed in a downward groove shape in which side edges on both sides in a direction orthogonal to the opposite direction of the opposite side are bent downward, and each receiving piece is formed on both sides in the direction orthogonal to the opposite direction of the opposite side. An underfloor arrangement device for a railway vehicle, wherein the side edge portion is formed in an upward groove shape bent upward.

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