WO2017038666A1 - Housing, and air compression device including said housing - Google Patents

Abstract

Disclosed is an air compression device provided with a housing in which an internal space that houses a compression mechanism for generating compressed air is formed. The housing has: a bracing strut positioned between two side surfaces that form a corner of the internal space; and a top plate connected to the upper end of the bracing strut. The top plate has: a top surface plate part that faces the lower surface of a vehicle; a first side piece that is folded from the top surface plate part and overlaps with one of the two side surfaces; a second side piece that is folded from the top surface plate part and overlaps with the other of the two side surfaces; and a tongue piece that is folded from the top surface plate part between the first side piece and the second side piece. A through-hole overlapping with each of a plurality of openings formed in the bracing strut is formed in the first side piece, the second side piece, and the tongue piece.

Description

Housing and air compression apparatus including the housing

The present invention relates to a housing for storing a heavy object such as an air compression mechanism that generates compressed air, and an air compression apparatus including the housing.

A casing including a heavy object, for example, an air compression device that generates compressed air is used for various purposes. Compressed air generated by an air compressor mounted on a vehicle (for example, a railway vehicle) may be supplied to a brake device that applies a braking force to the vehicle or a pneumatic device that opens and closes the door of the vehicle.

Patent Document 1 proposes an air compression device mounted on a railway vehicle. The air compression apparatus has a housing that houses a compression mechanism that compresses air. Usually, the air compressor is attached so that the housing is suspended from the lower surface of the vehicle.

Utility Model Registration No. 3150077

The compression mechanism includes a compressor and a motor that drives the compressor, and is held in the casing. The designer provides the housing with a structure that can withstand the weight of the compression mechanism including heavy objects such as a compressor and a motor. However, the skill of the operator who assembles the housing is not sufficient, and if there is a deficiency in the assembly of the housing, excessive stress may be generated in a deficient portion of the housing suspended from the lower surface of the vehicle. Excessive stress promotes fatigue of the metal material used for the housing.

An object of the present invention is to provide a housing that facilitates assembly and is unlikely to cause excessive stress due to assembly defects.

A housing according to an aspect of the present invention is a housing that forms an internal space in which a heavy object is accommodated, and a column that is positioned between two side surfaces that form a corner of the internal space, and an upper end of the column. And a support plate connected to the lower end portion, the support plate extending from the plate body portion to the column side and overlapping one of the two side surfaces. The plate body portion between the piece, a second side piece that extends from the plate body portion to the column side and overlaps the other of the two side surfaces, and the first side piece and the second side piece And a tongue piece extending from the column side to the column side, and the first side piece, the second side piece, and the tongue piece each communicate with a plurality of openings formed in the column. Is formed.

It is a schematic perspective view of the assembly which consists of a support | pillar and a top plate (1st Embodiment). It is a cross-sectional view of FIG. It is a schematic perspective view of the air compressor of 2nd Embodiment. It is another schematic perspective view of the other air compression apparatus of 2nd Embodiment. It is a schematic perspective view of the top plate of the air compressor shown in FIG. 3A. It is a schematic perspective view of the frame which supports the top plate shown by FIG. It is a schematic perspective view of the board member (1st board | plate material and 2nd board | plate material) utilized for manufacture of the top plate shown by FIG. 4 (4th Embodiment). It is a schematic plan view of the 1st board | plate material shown by FIG. FIG. 6 is a schematic perspective view of a compression mechanism supported by a frame shown in FIG. 5 (fifth embodiment). FIG. 6 is a schematic cross-sectional view of a housing around an ear portion of a frame shown in FIG. 5 (sixth embodiment).

<First Embodiment>
When two members are fixed by a plurality of bolts inserted from a plurality of different sides in a casing that accommodates a heavy object, an unskilled worker in the assembly operation tightens the bolt from the first. Sometimes. As a result, the relative positions of the two members are fixed based on the first bolt, so that the holes of the two members into which the second and subsequent bolts are inserted may not appropriately overlap. If an unskilled worker then forcibly inserts the second bolt into two holes that are not properly overlapped, excessive stress is generated around the bolt. When an assembly fastened with a plurality of bolts supports a heavy object, excessive stress is generated around the bolts and the bolts that are forcibly inserted. This results in promotion of metal fatigue of the two members. If the assembly is properly assembled, the two members will be in close contact and a high frictional force will be obtained between the two members. The high frictional force contributes to supporting heavy objects, so that the bolt and the stress around the bolt are kept at a low level. Therefore, if a plurality of bolts are fastened under an appropriate relative position between the two members, no excessive stress is generated in the assembly. The inventors of the present invention have developed a fastening structure for a housing that allows even an unskilled worker to easily perform an appropriate assembly operation and hardly generates excessive stress around the bolt. In the first embodiment, an exemplary case fastening structure is described. The fastening structure of the housing described in the first embodiment can be applied to various air compressors mounted on railroad vehicles and other moving vehicles.

FIG. 1 is a schematic perspective view of an assembly ASY composed of a support SPT and a top plate TPL. FIG. 2 is a cross-sectional view of FIG. The assembly ASY is described with reference to FIG.

The support column SPT includes a first plate portion FPP, a second plate portion SPP, and a third plate portion TPP. The first plate portion FPP, the second plate portion SPP, and the third plate portion TPP are long in the vertical direction. The third plate portion TPP is disposed between the first plate portion FPP and the second plate portion SPP. The width of the third plate portion TPP is narrower than the width of the first plate portion FPP and the width of the second plate portion SPP. The first plate part FPP and the second plate part SPP have a predetermined angle in plan view. The third plate portion TPP has an arbitrary angle α (see FIG. 2) larger than the predetermined angle between the first plate portion FPP and the second plate portion SPP with respect to the first plate portion FPP in plan view. Have. Further, the third plate portion TPP has an arbitrary angle β larger than the predetermined angle between the first plate portion FPP and the second plate portion SPP with respect to the second plate portion SPP in plan view (see FIG. 2). ). The sum of outer angles of the predetermined angle and the angles α and β of the first plate portion FPP and the second plate portion SPP is set to be π. The angles α and β of the third plate portion TPP and the first plate portion FPP or the second plate portion SPP may be different from each other, but are set to substantially the same angle (α = β) in the present embodiment. ing. The first plate part FPP, the second plate part SPP, and the third plate part TPP cooperate to form a corner.

1st opening part FON is formed in the upper end part of the 1st board part FPP along the board thickness direction. A second opening SON is formed in the upper end portion of the second plate portion SPP along the plate thickness direction. A third opening TON is formed at the upper end of the third plate portion TPP along the thickness direction.

The first opening FON is formed to receive a first fastener extending in the first direction A. The second opening SON is formed to receive a second fastener extending in a second direction B different from the first direction A. The third opening TON is formed to receive a third fastener extending in a third direction C different from the first direction A and the second direction B. Each of the first fastener, the second fastener, and the third fastener may be a bolt, a rivet, a pin, or another rod-like component that can fasten the support SPT and the top plate TPL. The principle of the present embodiment is not limited to specific parts used as the first fastener, the second fastener, and the third fastener.

The first direction A, the second direction B, and the third direction C coincide with the axis directions a1 to a3 of the openings FON, SON, and TON. Specifically, the directions of these axes a1 to a3 coincide with or are parallel to the directions of normal lines (perpendicular to the plane) of the first to third plate portions FPP, SPP, and TPP. Although the axes a1 to a3 of the openings FON, SON, and TON do not necessarily intersect at one point, when they do not intersect at one point, at least one of the axes a1 to a3 is translated and intersected at one point. In this case, the axis a3 of the third opening TON is an angle θ1 formed by the axis a1 of the first opening FON and the axis a2 of the second opening SON (first plate portion FPP, second plate portion SPP, and third The corners on the corner side formed by the plate portion TPP). In the present embodiment, the axes a1 to a3 of the openings FON, SON, and TON intersect at one point O without translation, and the axis a1 of the first opening FON and the axis a2 of the second opening SON. Is set to be orthogonal to each other. The axis a3 of the third opening TON is set to coincide with the bisector of the angle θ1 formed by the axis a1 of the first opening FON and the axis a2 of the second opening SON. That is, of the angles formed by the axis a3 of the third opening TON and the axis a1 of the first opening FON, the corner angle θ2 is the axis a3 of the third opening TON and the axis a2 of the second opening SON. Is equal to the corner angle θ3 on the corner side.

If the bolt is used for each of the first fastener, the second fastener, and the third fastener, the top plate TPL is easily removed from the support column SPT. Therefore, the operator can easily perform maintenance on the equipment surrounded by the assembly ASY.

The top plate TPL includes a top plate portion TSP, a first side piece FSF, a second side piece SSF, and a tongue piece TGF. The top plate portion TSP lies substantially horizontally. Each of the first side piece FSF, the second side piece SSF, and the tongue piece TGF is continuous with the top plate portion TSP and is separated from each other. The first side piece FSF extends downward from the top plate portion TSP by being bent from the top plate portion TSP, and overlaps the outer surface of the first plate portion FPP. The second side piece SSF extends downward from the top plate portion TSP by being bent from the top plate portion TSP, and overlaps the outer surface of the second plate portion SPP. The tongue piece TGF extends downward from the top plate portion TSP by being bent from the top plate portion TSP, and overlaps the outer surface of the third plate portion TPP. In a state where the tongue piece TGF overlaps the outer surface of the third plate portion TPP, the first and second side pieces FSF, SSF both overlap the first and second plate portions FPP, SPP, respectively. That is, the normal lines of the first side piece FSF, the second side piece SSF, and the tongue piece TGF are the normal lines of the first plate portion FPP, the second plate portion SPP, and the third plate portion TPP of the support column SPT. Match (including approximate matches). That is, the fold line between the tongue piece TGF and the top plate portion TSP is bent from the fold line between the first side piece FSF and the top plate portion TSP. Similarly, the fold line between the tongue piece TGF and the top plate portion TSP is bent from the fold line between the second side piece SSF and the top plate portion TSP. In the present embodiment, the included angle between the fold line forming the boundary between the tongue piece TGF and the top plate portion TSP and the fold line forming the boundary between the first side piece FSF and the top plate portion TSP is determined by the tongue piece TGF and the top plate. You may substantially correspond to the included angle between the fold line that forms the boundary of the portion TSP and the fold line that forms the boundary of the second side piece SSF and the top plate portion TSP.

1st communicating hole FCH is formed in the edge part by the side of the tongue piece TGF of 1st side piece FSF along the thickness direction. The first communication hole FCH overlaps the first opening FON.

A second communication hole SCH is formed along the thickness direction at the end of the second side piece SSF on the tongue piece TGF side. The second communication hole SCH overlaps the second opening SON.

3rd communicating hole TCH is formed in the center part of tongue piece TGF along the thickness direction. The third communication hole TCH overlaps the third opening TON.

In this case, the axes of the first communication hole FCH, the second communication hole SCH, and the third communication hole TCH coincide with or substantially coincide with the axes a1 to a3 of the first opening FON, the second opening SON, and the third opening TON. Match. Therefore, in FIG. 2, the axes of the communication holes FCH to TCH are also represented by the same axes a1 to a3 as the axes a1 to a3 of the openings FON, SON, and TON in FIG.

That is, the axes a1 to a3 of the communication holes FCH to TCH do not necessarily intersect at one point depending on the height position or horizontal position of the communication holes FCH to TCH, as shown in FIG. Otherwise, when the axes a1 to a3 are translated and intersected at one point, the axis a3 of the third communication hole TCH is the axis a1 of the first communication hole FCH and the axis a2 of the second communication hole SCH. Between the corners θ1 (the corners formed by the first plate portion FPP, the second plate portion SPP, and the third plate portion TPP). In the present embodiment, the axes a1 to a3 of the communication holes FCH, SCH, and TCH intersect at one point O so that the axis a1 of the first communication hole FCH and the axis a2 of the second communication hole SCH are orthogonal to each other. Is set. Further, the axis a3 of the third communication hole TCH is set to coincide with the bisector of the angle θ1 formed by the axis a1 of the first communication hole FCH and the axis a2 of the second communication hole SCH. That is, of the angles formed by the axis a3 of the third communication hole TCH and the axis a1 of the first communication hole FCH, the corner angle θ2 is the axis a3 of the third communication hole TCH and the axis a2 of the second communication hole SCH. Is equal to the corner angle θ3 on the corner side.

The worker places the top plate TPL on the support SPT. At this time, the first side piece FSF, the second side piece SSF, and the tongue piece TGF may be slightly separated from the support column SPT. The principle of this embodiment does not require high accuracy for the bending process applied to the top plate TPL.

First, the worker inserts the third fastener into the third communication hole TCH and the third opening TON. When the operator subsequently tightens the third fastener, the support column SPT is displaced relative to the top plate TPL, and the first opening FON automatically overlaps the first communication hole FCH (substantially). Including the case of overlapping). Similarly, the second opening SON automatically overlaps the second communication hole SCH (including a case where it substantially overlaps). The included angle between the fold line forming the boundary between the tongue piece TGF and the top plate portion TSP and the fold line forming the boundary between the first side piece FSF and the top plate portion TSP defines the boundary between the tongue piece TGF and the top plate portion TSP. If the fold line between the fold line formed and the fold line formed between the second side piece SSF and the top plate portion TSP substantially coincides with each other, the relative relationship of the first opening FON with respect to the first communication hole FCH is obtained. The displacement and the relative displacement of the second opening SON with respect to the second communication hole SCH are substantially equal.

Incidentally, in general, the relative positions of the communication holes FCH, SCH, and TCH with respect to the openings FON, SON, and TON are often not precisely aligned in consideration of workability and tolerances. For this reason, when the column SPT and the top plate TPL are aligned with respect to the first opening FON and the first communication hole FCH, the column SPT is positioned along the first direction A with respect to the top plate TPL. There is a bias. When this deviation occurs, the second opening SON formed in the second plate portion SPP orthogonal to the first plate portion FPP and the second communication formed in the second side piece SSF orthogonal to the first side piece FSF. The positional deviation from the hole SCH may become large. Based on this misalignment, the stress around the second fastener and the second fastener may increase. The same applies to the alignment of the support column SPT and the top plate TPL with reference to the second opening SON and the second communication hole SCH.

In this regard, in this embodiment, the assembly ASY includes a support SPT and a top plate TPL connected to the upper end of the support SPT. The support SPT includes the first plate portion FPP and the second plate portion SPP. In plan view, each of the first plate portion FPP and the second plate portion SPP includes a third plate portion TPP having an angle larger than the angle between the first plate portion FPP and the second plate portion SPP, The top plate TPL is bent from the top plate portion TSP, the top plate portion TSP, and overlaps the first plate portion FPP, and the second side plate FSP is bent from the top plate portion TSP and overlaps the second plate portion SPP. Including a side piece SSF, a tongue piece TSF which is bent from the top plate portion TSP between the first side piece FSF and the second side piece SSF and overlaps the third plate portion TPP. Each of the side piece SSF and the tongue piece TSF has a support S Since the communication holes FCH, SCH, and TCH that overlap with the openings FON, SON, and TON formed in the T are formed, the openings FON, SON, and TON and the communication holes FCH, SCH, and TCH have tolerances. Based on the above, even if the alignment is not strictly performed, when the third fastener is tightened first, the bias is reduced compared to the case where the first or second fastener is tightened first. can do.

In other words, in the present embodiment, the third plate portion TPP is provided between the first and second plate portions FPP, SPP having the above-described configuration, and the tongue piece TGF is provided between the first and second side pieces FSF, SSF. And the axis a3 of the third opening TON of the third plate portion TPP or the axis a3 of the third communication hole TCH of the tongue piece TGF are respectively the openings FON of the first and second plate portions FPP and SPP. , The angle θ1 of the SON axis a1, a2 or the bisector of the angle θ1 of the communication holes FCH, SCH of the first and second side pieces FSF, SSF. Therefore, even if the alignment is not strictly performed, as shown by a two-dot chain line in FIG. 2, when the third fastener is tightened first, the first or second fastener is tightened first. Compared to tightening, the bias can be reduced. Thus, the relative displacement of the first opening FON with respect to the first communication hole FCH and the relative displacement of the second opening SON with respect to the second communication hole SCH are small and can be made substantially equal.

Since the positional displacement between the first communication hole FCH and the first opening FON is small and the two overlap each other, the operator then easily puts the first fastener on the first communication hole FCH and the first opening FON. Can be inserted. Similarly, the operator can easily insert the second fastener into the second communication hole SCH and the second opening SON. If the operator observes the assembly rule that the third fastener is fastened before the other fasteners, the stresses around the first and second fasteners and these fasteners are kept at a low level. Thus, the operator can attach the top plate TPL to the support column SPT without causing excessive stress on the top plate TPL.

If the bolt is used for each of the first fastener, the second fastener, and the third fastener, the first side piece FSF is in surface contact with the first plate portion FPP, and the second side piece SSF is The surface contact is made with the second plate part SPP. Therefore, a strong frictional force is generated between the first side piece FSF and the first plate portion FPP and between the second side piece SSF and the second plate portion SPP. As a result, the top plate TPL is firmly connected to the support column SPT.

Second Embodiment
The structure described in relation to the first embodiment can be suitably used for various air compression apparatuses. Generally, an air compressor is suspended from a lower surface of a railway vehicle via a top plate. Therefore, much of the weight of the compression mechanism disposed inside the casing is applied to the top plate via the support column. That is, a load (for example, the weight of the compression mechanism) is concentrated on the fastening portion between the support column and the top plate. If excessive stress is generated between the top plate and the support column before assembly of the chassis to the railcar, the top plate is designed to withstand the intended resistance of the designer who designed the air compressor. There is a possibility that a load exceeding the load is applied to the top plate. As described in relation to the first embodiment, the structure of the top plate having the tongue pieces makes it difficult for excessive stress to be generated on the top plate, so that the top plate or the support column is hardly damaged. According to the principle described in connection with the first embodiment, if the operator observes the work procedure of performing the fastening operation on the tongue piece first, the corner is formed in cooperation with the tongue piece 2. The load received by two metal pieces (the first side piece and the second side piece described in connection with the first embodiment) is easily balanced (the risk that an excessively high load is applied to one of the two metal pieces is reduced). ) In the second embodiment, an exemplary air compressor is described.

FIG. 3A is a schematic perspective view of the air compressor 100 of the second embodiment. FIG. 3B is another schematic perspective view of the air compressor 100. The air compressor 100 is described with reference to FIGS. 1 and 3B. Hereinafter, for convenience, when the axes of X, Y, and Z are described in each drawing, the + X direction is described as the right direction, the + Y direction is defined as the forward direction, and the + Z direction is defined as the upward direction. The expression is not particularly limited, and merely represents the relative positional relationship in the present embodiment.

The air compressor 100 includes a housing 200, a compression mechanism (not shown), a cooling mechanism 300, a dehumidifier 400 (see FIG. 3B), and a control panel 500 (see FIG. 3B). The compression mechanism is arranged in an internal space 200 </ b> A (see FIG. 5) formed by the housing 200. The compression mechanism compresses air in the housing 200 to generate compressed air. The compressed air is then supplied to the cooling mechanism 300. The compressed air is cooled in the cooling mechanism 300. The compressed air is then dehumidified by the dehumidifying device 400. The control panel 500 controls the compression mechanism and other devices arranged in the housing 200.

The housing 200 includes a top plate 210 (see FIG. 3A), a front upper cover 220, a front lower cover 230, a right panel 240 (see FIG. 3A), a left panel 250 (see FIG. 3B), A bottom plate 260 (see FIG. 3B). The top plate 210 corresponds to the top plate TPL described with reference to FIG. Therefore, description of 1st Embodiment may be used for the top plate 210. FIG.

FIG. 4 is a schematic perspective view of the top plate 210. The top plate 210 will be described with reference to FIGS. 1 to 4.

As shown in FIG. 4, the top plate 210 includes a top plate portion 211, a front piece 212, a rear piece 213, a right piece 214, a left piece 215, and four tongue pieces 216, 217, 218, and 219. Including. The top plate portion 211 is a substantially octagonal shape corresponding to an outer edge in a plan view of columns 610, 620, 630, and 640 described later. When the air compressor 100 is attached to the lower surface (not shown) of the railway vehicle (not shown), the upper surface of the top panel 211 faces the lower surface of the railway vehicle. The top plate portion 211 corresponds to the top plate portion TSP described with reference to FIG. Therefore, description of 1st Embodiment may be used for the top | upper surface board part 211. FIG.

As shown in FIG. 4, the front, rear, left and right pieces 212 to 215 are bent downward from the top plate 211. The front piece 212 is used for attaching the front upper cover 220 (see FIG. 3A). The rear piece 213 is located on the opposite side to the front piece 212. The rear piece 213 is used for mounting the cooling mechanism 300 (see FIG. 3B). The right piece 214 is located above the right panel 240 (see FIG. 3A). The left piece 215 is located above the left panel 250 (see FIG. 3B). The left piece 215 is located on the opposite side of the right piece 214. One of the front piece 212 and the rear piece 213 corresponds to the first side piece FSF described with reference to FIG. One of the right piece 214 and the left piece 215 corresponds to the second side piece SSF described with reference to FIG. Therefore, the description of the first embodiment may be applied to each of the front piece 212, the rear piece 213, the right piece 214, and the left piece 215.

As shown in FIG. 4, the tongue pieces 216, 217, 218, and 219 are bent downward from the top plate portion 211. The tongue pieces 216, 217, 218, and 219 are positioned between adjacent pieces 212, 213, 214, and 215 of the front and rear, left and right pieces 212 to 215, respectively. These tongue pieces 216, 217, 218, and 219 cooperate with the front, rear, left and right pieces 212, 213, 214, and 215 to form the corners of the housing 200 (see FIG. 3A). These tongue pieces 216, 217, 218, and 219 are provided in a state separated from the front, rear, left and right pieces 212, 213, 214, and 215, respectively. Thereby, the dispersion | variation in the dimensional accuracy at the time of the assembly | attachment with the frame 600 mentioned later can be absorbed.

FIG. 5 is a schematic perspective view of a frame body 600 that supports the top plate 210 (see FIG. 4). The frame 600 is described with reference to FIGS. 1 to 5.

The housing 200 (see FIG. 3A) includes a frame body 600 (see FIG. 5). The bottom plate 260 described with reference to FIG. 3B is used as a part of the frame body 600. As shown in FIG. 5, the frame body 600 includes four support columns 610, 620, 630, and 640 in addition to the bottom plate 260. Each of the columns 610, 620, 630, and 640 forms a corner of a substantially rectangular parallelepiped internal space 200 </ b> A formed by the housing 200. The corners formed by the columns 610 and the corners formed by the columns 640 are arranged on a diagonal line of the internal space 200A having a substantially rectangular parallelepiped shape. The corner formed by the column 620 and the corner formed by the column 630 are arranged on another diagonal line of the substantially rectangular parallelepiped internal space 200A.

The front upper cover 220 (see FIG. 3A) and the front lower cover 230 (see FIG. 3A) close the space between the columns 610 and 620. The right panel 240 (see FIG. 3A) closes the space between the posts 610, 630. The left panel 250 (see FIG. 3B) closes the space between the columns 620,640. The cooling mechanism 300, the dehumidifying device 400, and the control panel 500 close the space between the columns 630 and 640.

As shown in FIG. 5, the column 610 includes an L-shaped bar 611 and an attachment piece 612. The L-shaped bar 611 extends upward from the bottom plate 260. The L-shaped bar 611 includes a front plate portion 613 and a right plate portion 614. The front upper cover 220 (see FIG. 3A) and the front lower cover 230 (see FIG. 3A) abut against the front plate portion 613. The right panel 240 (see FIG. 3A) is fixed to the right plate portion 614. The mounting piece 612 is fitted into a notch formed at the upper edge of the L-shaped bar 611. The attachment piece 612 may be thicker than the metal material for which the L-shaped bar 611 is used. The attachment piece 612 may be welded to the L-shaped bar 611. The attachment piece 612 is located between the front plate portion 613 and the right plate portion 614. The strut 610 may correspond to the strut SPT described with reference to FIG. The front plate portion 613 may correspond to the first plate portion FPP described with reference to FIG. The right plate portion 614 may correspond to the second plate portion SPP described with reference to FIG. The attachment piece 612 may correspond to the third plate portion TPP described with reference to FIG. Therefore, the description of the first embodiment may be applied to the L-shaped bar 611 and the mounting piece 612.

As shown in FIG. 5, the front plate portion 613 is formed with two bolt holes 615 and 616 arranged in the left-right direction. Bolt holes 615 and 616 are formed in the upper end portion of the front plate portion 613. The right plate portion 614 is formed with two bolt holes 617 and 618 arranged in the front-rear direction. Bolt holes 617 and 618 are formed in the upper end portion of the right plate portion 614. A bolt hole 619 is formed in the mounting piece 612. One of the bolt holes 615 and 616 may correspond to the first opening FON described with reference to FIG. One of the bolt holes 617 and 618 may correspond to the second opening SON described with reference to FIG. The bolt hole 619 may correspond to the third opening TON described with reference to FIG. Therefore, the description of the first embodiment may be applied to the bolt holes 615, 616, 617, 618, and 619.

Each of the pillars 620, 630, and 640 is the same in shape and structure as the pillar 610. The description regarding the column 610 is incorporated in each of the columns 620, 630, and 640.

As shown in FIG. 4, four through holes 651, 652, 653, 654 are formed in the front piece 212. A set of through holes 651 and 652 is formed at the right end of the front piece 212, while a set of through holes 653 and 654 is formed at the left end of the front piece 212. One of the through holes 651, 652, 653, 654 may correspond to the first communication hole FCH described with reference to FIG. Therefore, the description of the first embodiment may be applied to each of the through holes 651, 652, 653, 654.

When the top plate 211 is overlaid on the columns 610, 620, 630, and 640 (see FIG. 5), the through hole 651 overlaps the bolt hole 615 (see FIG. 5) of the column 610. The through hole 652 overlaps the bolt hole 616 (see FIG. 5) of the support column 610. The through hole 653 overlaps with the bolt hole 625 (see FIG. 5) of the support column 620. The through hole 654 overlaps the bolt hole 626 (see FIG. 5) of the column 620. An operator who attaches the top plate 210 to the frame body 600 can insert the bolt B01 (see FIG. 3A) into the through hole 651 and screw it into the bolt hole 615. As a result, the front piece 212 is connected to the columns 610 and 620. In the present embodiment, the first fastener may be exemplified by one of the bolts B01, B02, B03, B04.

As shown in FIG. 4, the rear piece 213 is formed with two through holes 655 and 656 and three bolt holes 657, 658, and 659. The through hole 655 is formed at the right end portion of the rear piece 213, while the through hole 656 is formed at the left end portion of the rear piece 213. Bolt holes 657, 658, 659 are aligned between through holes 655, 656. Bolt holes 657, 658, and 659 are used for mounting cooling mechanism 300 (see FIG. 3B).

When the top plate 211 is overlaid on the columns 610, 620, 630, 640 (see FIG. 5), the through hole 655 overlaps the bolt hole 635 (see FIG. 5) of the column 630. At this time, the through hole 656 overlaps the bolt hole 645 (see FIG. 5) of the support column 640. The operator can insert a bolt (not shown) into the through hole 655 and screw it into the bolt hole 635. The operator can insert a bolt (not shown) into the through hole 656 and screw it into the bolt hole 645. As a result, the rear piece 213 is connected to the columns 630 and 640.

As shown in FIG. 4, four through holes 661, 662, 663, 664 are formed in the right piece 214. A set of through holes 661 and 662 is formed at the front end of the right piece 214, while a set of through holes 663 and 664 is formed at the rear end of the right piece 214. One of the through holes 661, 662, 663, 664 may correspond to the second communication hole SCH described with reference to FIG. Therefore, the description of the first embodiment may be applied to each of the through holes 661, 662, 663, and 664.

When the top plate 211 is overlaid on the columns 610, 620, 630, and 640 (see FIG. 5), the through hole 661 overlaps the bolt hole 617 (see FIG. 5) of the column 610. The through hole 662 overlaps the bolt hole 618 (see FIG. 5) of the support column 610. The through hole 663 overlaps the bolt hole 637 (see FIG. 5) of the support column 630. The through hole 664 overlaps the bolt hole 638 (see FIG. 5) of the support column 630. An operator who attaches the top plate 210 to the frame 600 can insert the bolt B05 (see FIG. 3A) into the through hole 661 and screw it into the bolt hole 617. The operator can insert the bolt B06 (see FIG. 3A) into the through hole 662 and screw it into the bolt hole 618. The operator can insert the bolt B07 (see FIG. 3A) into the through hole 663 and screw it into the bolt hole 637. The operator can insert the bolt B08 (see FIG. 3A) into the through hole 664 and screw it into the bolt hole 638. As a result, the right piece 214 is connected to the columns 610 and 630. In the present embodiment, the second fastener may be exemplified by one of the bolts B05, B06, B07, B08.

As shown in FIG. 4, four through holes 665, 666, 667, 668 are formed in the left piece 215. A set of through holes 665 and 666 is formed at the front end of the left piece 215, while a set of through holes 667 and 668 is formed at the rear end of the left piece 215. One of the through holes 665, 666, 667, and 668 may correspond to the second communication hole SCH described with reference to FIG. Therefore, the description of the first embodiment may be applied to each of the through holes 665, 666, 667, and 668.

When the top plate 211 is overlaid on the columns 610, 620, 630, 640 (see FIG. 5), the through hole 665 overlaps the bolt hole 627 (see FIG. 5) of the column 620. The through hole 666 overlaps the bolt hole 628 (see FIG. 5) of the support column 620. The through hole 667 overlaps the bolt hole 647 (see FIG. 5) of the support column 640. The through hole 668 overlaps the bolt hole 648 (see FIG. 5) of the support column 640. An operator who attaches the top plate 210 to the frame body 600 can insert the bolt B09 (see FIG. 3B) into the through hole 665 and screw it into the bolt hole 627. The operator can insert the bolt B <b> 10 (see FIG. 3B) into the through hole 666 and screw it into the bolt hole 628. The operator can insert the bolt B11 (see FIG. 3B) into the through hole 667 and screw it into the bolt hole 647. The operator can insert the bolt B12 (see FIG. 3B) into the through hole 668 and screw it into the bolt hole 648. As a result, the left piece 215 is connected to the columns 620 and 640. In the present embodiment, the second fastener may be exemplified by one of the bolts B09, B10, B11, B12.

A through hole (not shown) is formed in the tongue piece 216 (see FIG. 4). A through hole 671 (see FIG. 4) is formed in the tongue piece 217 (see FIG. 4). The tongue piece 218 (see FIG. 4) is formed with a through hole 672 (see FIG. 4). A through hole (not shown) is formed in the tongue piece 219 (see FIG. 4).

When the top plate 211 is overlaid on the columns 610, 620, 630, 640 (see FIG. 5), the through hole (not shown) of the tongue piece 216 is attached to the mounting piece 612 of the column 610 (see FIG. 5). ) (See FIG. 5). The through hole 671 of the tongue piece 217 overlaps with a bolt hole (not shown) formed in the mounting piece 622 (see FIG. 5) of the column 620. The through hole 672 of the tongue piece 218 overlaps with the bolt hole 639 (see FIG. 5) of the attachment piece 632 (see FIG. 5) of the column 630. The through hole (not shown) of the tongue piece 219 overlaps the bolt hole 649 of the attachment piece 642 (see FIG. 5) of the column 640.

An operator who attaches the top plate 210 to the frame 600 inserts a bolt B13 (see FIG. 3A) into a through hole (not shown) of the tongue piece 216, and a bolt hole formed in the attachment piece 612 of the column 610. 619 can be screwed together. As a result, the tongue piece 216 is fastened to the attachment piece 612.

The operator can insert the bolt B14 (see FIG. 3A) into the through hole 671 of the tongue piece 217 and screw it into a bolt hole (not shown) formed in the mounting piece 622 of the column 620. As a result, the tongue piece 217 is fastened to the attachment piece 622.

The operator can insert the bolt B15 (see FIG. 3A) into the through hole 672 of the tongue piece 218 and screw it into the bolt hole 639 formed in the mounting piece 632 of the column 630. As a result, the tongue piece 218 is fastened to the attachment piece 632.

The operator can insert the bolt B16 (see FIG. 3B) through the through hole (not shown) of the tongue piece 219 and screw it into the bolt hole 649 of the mounting piece 642 of the column 640. As a result, the tongue piece 219 is fastened to the attachment piece 642.

In accordance with the assembly principle described in connection with the first embodiment, the operator first attaches the tongue pieces 216, 217, 218, 219 to the mounting pieces 612, 622, 632 of the columns 610, 620, 630, 640. Fastened to 642 respectively. As a result, the front, rear, left, and right sides of the top plate 210 with respect to the columns 610, 620, 630, and 640 are compared to the case where the front, rear, left, and right pieces 212, 213, 214, 215 are first fastened to the columns 610, 620, 630, 640, respectively. And the operator can appropriately adjust the relative positional relationship between the top plate 210 (see FIG. 4) and the frame body 600 (see FIG. 5). Thereafter, the operator can fasten the front piece 212, the rear piece 213, the right piece 214, and the left piece 215 to the columns 610, 620, 630, and 640, and fix the top plate 210 to the frame body 600. In the present embodiment, the third fastener described with reference to FIG. 1 may correspond to one of the bolts B13, B14, B15, and B16.

<Third Embodiment>
In general, since the air compression device is suspended from the lower surface of the railway vehicle, the designer may give various reinforcing structures to the top plate of the casing connected to the lower surface of the railway vehicle. In the third embodiment, an exemplary reinforcing structure is described.

As shown in FIG. 4, the top plate 210 includes two horizontal ribs 710 and 720 and two vertical ribs 730 and 740. The horizontal ribs 710 and 720 and the vertical ribs 730 and 740 form a lattice-like reinforcing structure. The top plate 210 is structurally reinforced by a lattice-like reinforcing structure.

The horizontal ribs 710 and 720 extend between the right piece 214 and the left piece 215 in parallel with the front piece 212 and the rear piece 213. The lateral ribs 710 and 720 are exemplified by the front piece 212 and the rear piece 213 and the first reinforcing rib in the present embodiment by one of the lateral ribs 710 and 720.

The vertical ribs 730 and 740 extend between the front piece 212 and the rear piece 213 in parallel with the right piece 214 and the left piece 215. The vertical ribs 730 and 740 protrude downward from the top plate portion 211 between the right piece 214 and the left piece 215. In the present embodiment, the second reinforcing rib is exemplified by one of the vertical ribs 730 and 740.

The lattice-like reinforcing structure formed by the horizontal ribs 710 and 720 and the vertical ribs 730 and 740 divides the area of the top plate portion 211 into nine areas A01 to A09. The region A01 is surrounded by the front piece 212, the right piece 214, the tongue piece 216, the horizontal rib 710, and the vertical rib 730. The area A02 is surrounded by the front piece 212, the left piece 215, the tongue piece 217, the horizontal rib 710, and the vertical rib 740. The region A03 is surrounded by the rear piece 213, the right piece 214, the tongue piece 218, the horizontal rib 720, and the vertical rib 730. The region A04 is surrounded by the rear piece 213, the left piece 215, the tongue piece 219, the horizontal rib 720, and the vertical rib 740. The region A05 is surrounded by the front piece 212, the horizontal rib 710, and the vertical ribs 730 and 740. The region A06 is surrounded by the right piece 214, the horizontal ribs 710 and 720, and the vertical rib 730. The region A07 is surrounded by the left piece 215, the horizontal ribs 710 and 720, and the vertical rib 740. The region A08 is surrounded by the rear piece 213, the horizontal rib 720, and the vertical ribs 730 and 740. The region A09 is surrounded by the horizontal ribs 710 and 720 and the vertical ribs 730 and 740.

The regions A01 to A04 substantially coincide with each other in shape and size. Each of the areas A01 to A04 is smaller than each of the other areas A05 to A09. Mount portions 761 to 764 formed in a disk shape are provided in the regions A01 to A04, respectively. Each of the mount portions 761 to 764 is formed with attachment holes 751 to 754. The mount portions 761 to 764 have a vibration control structure, and can suppress vibration transmission from the housing 200 to the railway vehicle (not shown).

FIG. 3A shows two attachment members ATM. The attachment member ATM is used to suspend the housing 200 on the lower surface (not shown) of the railway vehicle (not shown). In the present embodiment, the suspended structure is exemplified by the attachment member ATM.

As shown in FIG. 3A, the attachment member ATM is placed on the top plate portion 211. The attachment member ATM is fixed on the top plate portion 211 by a bolt member inserted into the attachment holes 751, 752, 753, and 754.

Since the top plate 210 is structurally reinforced by the horizontal and vertical ribs 710, 720, 730, and 740, the air compressor 100 of the present embodiment can suppress deformation of the top plate 210. In particular, since the air compression apparatus 100 has small areas A01 to A04 in which the mounting holes 751 to 754 are provided, the housing 200 can be firmly attached to the lower surface of the railway vehicle (not shown). In the present embodiment, two horizontal and vertical ribs 710, 720, 730, and 740 are provided, but the number is not particularly limited.

<Fourth embodiment>
The reinforcing structure described in relation to the third embodiment may be formed by welding an elongated metal plate piece to the top plate portion. However, welding over excessively long distances requires high welding skills. In the fourth embodiment, a simple technique for creating a reinforcing structure will be described.

FIG. 6 is a schematic perspective view of a plate member used for manufacturing the top plate 210. The top plate 210 will be described with reference to FIGS. 3A, 4, and 6.

As shown in FIG. 6, the top plate 210 is formed of a rectangular first plate member 760 and a rectangular second plate member 770. The second plate member 770 occupies the region A09 described with reference to FIG. The first plate member 760 forms other regions A01 to A08.

FIG. 7 is a schematic plan view of the first plate member 760. With reference to FIGS. 4, 6, and 7, processing on the first plate member 760 will be described.

The solid line in FIG. 7 represents a cutting line or an outline. The dotted line in FIG. 7 means a fold line.

A punching process is applied to the rectangular first plate member 760 shown in FIG. 6 to form the shape shown in FIG. FIG. 7 shows points P01 to P08 representing the vertices of a plurality of substantially triangular notches formed on the outer edge of the first plate member 760. FIG.

A dotted line D01 (see FIG. 7) extending between the point P01 and the point P02 represents a boundary between the top plate portion 211 and the front piece 212. The dotted line D01 is substantially parallel to the insertion direction of the bolts B05, B06, B07, B08 (see FIG. 3A). The front piece 212 is bent downward along the dotted line D01. A dotted line D02 (see FIG. 7) extending between the point P05 and the point P06 represents a boundary between the top plate portion 211 and the rear piece 213. The dotted line D02 is substantially parallel to the insertion direction of the bolts B05, B06, B07, B08 (see FIG. 3A). The rear piece 213 is bent downward along the dotted line D02. In the present embodiment, the first outer fold line is exemplified by one of dotted lines D01 and D02.

A dotted line D03 (see FIG. 7) extending between the points P07 and P08 represents a boundary between the top plate portion 211 and the right piece 214. The dotted line D03 is substantially parallel to the insertion direction of the bolts B01, B02, B03, B04 (see FIG. 3A). The right piece 214 is bent downward along the dotted line D03. A dotted line D04 (see FIG. 7) extending between the point P03 and the point P04 represents a boundary between the top plate portion 211 and the left piece 215. The dotted line D04 is substantially parallel to the insertion direction of the bolts B01, B02, B03, B04 (see FIG. 3A). The left piece 215 is bent downward along the dotted line D04. In the present embodiment, the second folding line is exemplified by one of dotted lines D03 and D04.

A dotted line D05 extending between the point P01 and the point P08 represents the boundary between the top plate portion 211 and the tongue piece 216. The tongue piece 216 is bent downward along the dotted line D05.

A dotted line D06 extending between the point P02 and the point P03 represents a boundary between the top plate portion 211 and the tongue piece 217. The tongue piece 217 is bent downward along the dotted line D06.

A dotted line D07 extending between the point P06 and the point P07 represents the boundary between the top plate 211 and the tongue piece 218. The tongue piece 218 is bent downward along the dotted line D07.

A dotted line D08 extending between the point P04 and the point P05 represents the boundary between the top plate part 211 and the tongue piece 219. The tongue piece 219 is bent downward along the dotted line D08.

FIG. 7 shows points P09 to P12. Points P09 to P12 correspond to the vertices of the rectangular area formed in the top plate portion 211.

FIG. 7 shows a point P13 and a point P14 between the point P09 and the point P10. The points P09, P10, P13, and P14 are arranged on one straight line. A straight line in which the points P09, P10, P13, and P14 are aligned is substantially parallel to the dotted line D01. Point P13 is located between point P09 and point P14. The point P14 is located between the points P10 and P13.

FIG. 7 shows a point P15 and a point P16 between the point P11 and the point P12. The points P11, P12, P15, and P16 are arranged on one straight line. A straight line in which the points P11, P12, P15, and P16 are aligned is substantially parallel to the dotted line D02. The point P15 is located between the points P11 and P16. The point P16 is located between the points P12 and P15.

The cut line C01 is formed between the point P09 and the point P13 by the punching process described above. A cut line C02 is formed between the point P10 and the point P14. A cut line C03 is formed between the points P11 and P15. A cut line C04 is formed between the points P12 and P16.

FIG. 7 shows points P17 to P20. The points P17 to P20 correspond to the vertices of the rectangular area drawn in the rectangular area formed by the points P09 to P12.

The point P13, the point P16, the point P17, and the point P20 are arranged on one straight line. By the above-described punching process, a cut line C05 is formed along a straight line in which the points P13, P16, P17, and P20 are aligned. The cut line C05 is substantially parallel to the dotted line D03.

The point P14, the point P15, the point P18, and the point P19 are arranged on one straight line. By the punching process described above, a cut line C06 is formed along a straight line where the points P14, P15, P18, and P19 are aligned. The cut line C06 is substantially parallel to the dotted line D04.

The cut line C07 extending between the points P17 and P18 is formed by the above punching process. The cut line C07 is substantially parallel to the dotted line D01.

The cut line C08 extending between the points P19 and P20 is formed by the above punching process. The cut line C08 is substantially parallel to the dotted line D02.

As shown in FIG. 4, the lateral rib 710 includes a center rib 711, a right extension rib 712, and a left extension rib 713. FIG. 7 shows a dotted line D09. A dotted line D09 represents a boundary between the top plate portion 211 and the central rib 711. The dotted line D09 is substantially parallel to the dotted line D01. The central rib 711 is bent downward along the dotted line D09. The right extension rib 712 shown in FIG. 4 is welded to the top plate portion 211 in the section from the right end of the central rib 711 to the right piece 214. The left extension rib 713 shown in FIG. 4 is welded to the top plate portion 211 in the section from the left end of the central rib 711 to the left piece 215. Since the central rib 711 is formed by bending, the lateral rib 710 is easily formed without requiring an excessively long welding section.

As shown in FIG. 4, the lateral rib 720 includes a central rib 721, a right extension rib 722, and a left extension rib 723. FIG. 7 shows a dotted line D10. A dotted line D <b> 10 represents a boundary between the top plate portion 211 and the central rib 721. The dotted line D10 is substantially parallel to the dotted line D02. The central rib 721 is bent downward along the dotted line D10. The right extension rib 722 shown in FIG. 4 is welded to the top plate portion 211 in the section from the right end of the central rib 721 to the right piece 214. The left extension rib 723 shown in FIG. 4 is welded to the top plate portion 211 in the section from the left end of the central rib 721 to the left piece 215. Since the central rib 721 is formed by bending, the lateral rib 720 is easily formed without requiring an excessively long welding section.

As shown in FIG. 4, the vertical rib 730 includes a central rib 731, a front extension rib 732, and a rear extension rib 733. FIG. 7 shows a dotted line D11. The dotted line D11 represents the boundary between the top plate portion 211 and the central rib 731. The dotted line D11 is substantially parallel to the dotted line D03. The central rib 731 is bent downward along the dotted line D11. The front extension rib 732 shown in FIG. 4 is substantially orthogonal to the lateral rib 710 and the front piece 212 and is aligned with the central rib 731. The front extension rib 732 is welded to the top plate part 211. The rear extension rib 733 shown in FIG. 4 is substantially orthogonal to the lateral rib 720 and the rear piece 213 and is aligned with the central rib 731. The rear extension rib 733 is welded to the top plate portion 211. Since the central rib 731 is formed by bending, the vertical rib 730 is easily formed without requiring an excessively long welding section.

As shown in FIG. 4, the vertical rib 740 includes a center rib 741, a front extension rib 742, and a rear extension rib 743. FIG. 7 shows a dotted line D12. A dotted line D12 represents a boundary between the top plate portion 211 and the central rib 741. The dotted line D12 is substantially parallel to the dotted line D04. The central rib 741 is bent downward along the dotted line D12. The front extension rib 742 shown in FIG. 4 is substantially orthogonal to the lateral rib 710 and the front piece 212 and is aligned with the central rib 741. The front extension rib 742 is welded to the top plate portion 211. The rear extension rib 743 shown in FIG. 4 is substantially orthogonal to the lateral rib 720 and the rear piece 213 and is aligned with the central rib 741. The rear extension rib 743 is welded to the top plate portion 211. Since the center rib 741 is formed by bending, the vertical rib 740 is easily formed without requiring an excessively long welding section.

In the present embodiment, the first bent rib is exemplified by one of the central ribs 711 and 721. The second bent rib is exemplified by one of the central ribs 731 and 741. The first extension rib is exemplified by one of the right extension ribs 712 and 722 and the left extension ribs 713 and 723. The second extension rib is exemplified by one of the front extension ribs 732 and 742 and the rear extension ribs 733 and 743. The first inward fold line is exemplified by one of dotted lines D09 and D10. The second inward fold line is exemplified by one of dotted lines D11 and D12.

As a result of the bending of the central ribs 711, 721, 731, 741, rectangular regions formed by the points P09, P10, P11, and P12 (the contour lines along the dotted lines D09 to D12 and the cut lines C01 to C04 are shown). The region having the opening. The second plate member 770 closes the opened rectangular area. The second plate member 770 may be welded to the top plate portion 211. In the present embodiment, the lid plate is exemplified by the second plate member 770.

In the top plate 210 of the present embodiment, the horizontal and vertical ribs 710, 720, 730, and 740 are each retrofitted to the first plate member 760 by welding the central ribs 711, 721, 731, and 741 obtained by bending the first plate member 760. Since the extension ribs 712, 722, 713, 723, 732, 742, 733, and 743 are configured, it is possible to shorten the welded section when constructing the reinforcing structure by the ribs, and thereby the reinforcing structure It can be formed easily.

<Fifth Embodiment>
The compression mechanism disposed in the housing may be formed using various known devices. The compression mechanism may include one of a scroll compressor, a rotary compressor, a swing compressor, and a reciprocating compressor. In the fifth embodiment, an exemplary compression mechanism is described.

FIG. 8 is a schematic perspective view of the compression mechanism 800 supported by the frame body 600. The compression mechanism 800 will be described with reference to FIGS. 3A, 7, and 8.

The compression mechanism 800 includes a scroll compressor 810 and a motor 820. The motor 820 generates a driving force under the control of the control panel 500 described with reference to FIG. 3A. The driving force is transmitted from the motor 820 to the scroll compressor 810 by a transmission mechanism (not shown) constructed using general parts such as a belt and a pulley. The driving force causes the oscillating rotation of the scroll compressor 810. As a result, the scroll compressor 810 can compress air and generate compressed air.

The frame 600 includes two girders 681 and 682. The beam member 681 extends substantially horizontally between the columns 610 and 620. The beam member 682 extends substantially horizontally between the columns 630 and 640. The spar 681 is positioned below a fold line (dotted line D01 shown in FIG. 7) between the top plate portion 211 (see FIG. 7) and the front piece 212 (see FIG. 7). The beam member 682 is positioned below a fold line (dotted line D02 shown in FIG. 7) between the top plate portion 211 and the rear piece 213 (see FIG. 7).

The frame body 600 further includes a support plate 690. Support plate 690 includes a main plate portion 691 and four ear portions 692. FIG. 8 shows three of the four ears 692. Two of the four ears 692 protrude forward from the support plate 690 and are connected to the girder 681. The other two of the four ears 692 protrude rearward from the support plate 690 and are connected to the beam member 682.

The scroll compressor 810 is attached to the upper surface of the main plate portion 691. The motor 820 is attached to the lower surface of the main plate portion 691. Since the scroll compressor 810 and the motor 820 are arranged in the vertical direction, the designer does not need to give a large value to the horizontal cross-section weir of the frame body 600.

<Sixth Embodiment>
While the compression mechanism is generating compressed air, the compression mechanism generates vibration. The present inventors have developed a technique for reducing vibration transmitted from the compression mechanism to the railway vehicle. In the sixth embodiment, an exemplary vibration reduction technique is described.

FIG. 9 is a schematic cross-sectional view of the housing 200 around the ear portion 692. With reference to FIGS. 8 and 9, the structure of the housing 200 around the ear portion 692 will be described.

As shown in FIG. 9, the housing 200 includes an anti-vibration ring 910, an anti-vibration bush 920, a bolt 930, a washer 940, and two nuts 951 and 952. The anti-vibration ring 910 is sandwiched between the beam member 683 and the ear portion 692. The beam member 683 corresponds to each of the beam members 681 and 682 described with reference to FIG.

The ear portion 692 is separated upward from the beam member 683 by the vibration isolation ring 910. Therefore, the vibration of the compression mechanism 800 is not directly transmitted from the support plate 690 (see FIG. 8) to the beam member 683. In the present embodiment, the vibration isolation material is exemplified by the vibration isolation ring 910.

The anti-vibration bush 920 is disposed on the beam member 683. Therefore, the girder 683 is sandwiched between the vibration isolation ring 910 and the vibration isolation bush 920.

The bolt 930 includes a head portion 931, a body portion 932, and a screw portion 933. The nuts 951 and 952 are fastened to the screw portion 933. The head 931 is welded to the lower surface of the beam member 683. The trunk portion 932 protrudes upward from the head portion 931 and penetrates the beam member 683, the vibration isolation ring 910, and the vibration isolation bush 920. The trunk portion 932 includes a lower portion 935 connected to the head portion 931 and an upper portion 936 extending upward from the lower portion 935. The girder 683 is formed with a through hole 684 into which the body 932 is inserted. The diameter of the through hole 684 is larger than the diameter of the lower portion 935 of the body portion 932. Therefore, the girder 683 is difficult to contact the bolt 930. As a result, vibration transmission from the bolt 930 to the beam member 683 is less likely to occur. The inner diameter of the vibration isolating ring 910 is substantially equal to the diameter of the lower portion 935 of the body portion 932. Since the vibration isolating ring 910 does not contact the upper portion 936 of the body portion 932, the amount of vibration transmitted from the vibration isolating ring 910 to the bolt 930 is small. In the present embodiment, the fastening rod is exemplified by a bolt 930. The contact portion is exemplified by a head portion 931. The penetrating portion is exemplified by a trunk portion 932 and a screw portion 933 extending upward from the trunk portion 932.

The ear portion 692 includes an edge portion 694 that defines a through hole 693 into which the body portion 932 is inserted. The diameter of the through hole 693 is larger than the diameter of the trunk portion 932. Therefore, the edge 694 is unlikely to contact the bolt 930. As a result, vibration transmission from the ear portion 692 to the bolt 930 is less likely to occur.

The anti-vibration bush 920 includes a lower ring portion 921 and an upper ring portion 922. The inner diameter of the upper ring portion 922 matches the inner diameter of the lower ring portion 921, while the outer diameter of the upper ring portion 922 is larger than the outer diameter of the lower ring portion 921. The lower ring portion 921 protrudes downward from the upper ring portion 922 and fills a narrow annular space between the edge portion 694 of the ear portion 692 and the trunk portion 932 of the bolt 930. As a result, the ear 692 is appropriately positioned with respect to the bolt 930.

The outer diameter of the screw part 933 is smaller than the diameter of the body part 932. Therefore, a step portion 934 is formed at the boundary between the body portion 932 and the screw portion 933. In the present embodiment, the first rod portion is exemplified by the trunk portion 932. The second bar portion is exemplified by a screw portion 933.

The washer 940 includes a lower portion 941 surrounding the distal end of the body portion 932 of the bolt 930 and an upper portion 942 surrounding the proximal end of the screw portion 933 of the bolt 930. Since the inner diameter of the lower portion 941 of the washer 940 is smaller than the diameter of the body portion 932, the height position of the washer 940 is determined by the position of the step portion 934. As shown in FIG. 9, a thin gap is formed between the lower surface of the washer 940 and the upper surface of the vibration isolating bush 920. As a result, vibration transmission from the vibration isolating bush 920 to the washer 940 is less likely to occur.

Designers can design various air compression devices according to the design principles described in relation to the various embodiments described above. Some of the various features described in connection with one of the various embodiments described above may be applied to the air compression apparatus described in connection with another other embodiment.

<Other embodiments>
In the first embodiment, the “support plate” connected to the support column SPT is described as the “top plate” connected to the upper end portion of the support column SPT, but this “support plate” is the lower end portion of the support column SPT. It may be configured as a “bottom plate” connected to the. In this case, the bottom plate has a configuration in which the top and bottom of the top plate TPL are turned upside down, and specifically includes a bottom plate, a first side piece, a second side piece, and a tongue piece. Even in such a bottom plate, when a heavy object is installed on the bottom plate, stress is applied to the fastening portion between the bottom plate and the support column between the bottom plate and the support column, similarly to the top plate and the support column. Concentration can occur. That is, since the communication holes that overlap with the respective openings formed in the support column SPT are respectively formed in the bottom plate, even if each opening and each communication hole are not precisely aligned based on tolerances, When the third fastener is tightened first, the bias can be reduced compared to the case where the first or second fastener is tightened first.

In the first embodiment, the tongue piece TGF and the first side piece FSF or the second side piece SSF are separated from each other, but these pieces TGF, FSF, and SSF are continuous with each other. It may be. In this case, the continuous portion of the tongue piece TGF and the first side piece FSF, or the continuous portion of the tongue piece TGF and the second side piece SSF may be configured as a corner portion or configured as a curved connection portion. It may be.

Furthermore, in the second embodiment and the like, the air compression mechanism is accommodated in the internal space 200A of the housing 200, but heavy objects accommodated in the internal space 200A are limited to the air compression mechanism. It is not a thing. For example, in the internal space 200A of the housing 200, a driving device such as an electric motor, a transmission device such as a speed reducer or a clutch, an operating device such as a pump or a generator, or a heavy object such as a battery may be accommodated. good.

[Outline of the embodiment]
Here, the embodiment will be outlined.

The housing according to one aspect of the present invention forms an internal space in which a heavy object is accommodated. The housing includes a support column positioned between two side surfaces forming a corner of the internal space, and a support plate connected to an upper end portion or a lower end portion of the support column, and the support plate is a plate main body. A first side piece extending from the plate body portion to the column side and overlapping one of the two side surfaces, and extending from the plate body portion to the column side and out of the two side surfaces. A second side piece that overlaps the other, and a tongue piece that extends from the plate body portion to the column side between the first side piece and the second side piece, the first side piece, Each of the second side piece and the tongue piece is formed with a communication hole that overlaps each of a plurality of openings formed in the support column.

According to the above configuration, the operator who connects the top plate to the upper end of the support can overlap the communication hole formed in the tongue piece on one of the plurality of openings formed in the support. As a result, the operator can insert the fastener into the communication hole of the tongue piece and the corresponding opening. As described above, the tongue piece between the first side piece and the second side piece is positioned with respect to the support column, so that the relative positions of the first side piece and the second side piece with respect to the support column are appropriately set. Determined. When the first side piece and the second side piece are properly positioned with respect to the support column, the respective communication holes of the first side piece and the second side piece overlap with the corresponding openings formed in the support column. Accordingly, the operator can reasonably insert the fasteners into the communication holes and the corresponding openings of the first side piece and the second side piece. As a result, the operator can assemble the housing without any defects, and excessive stress is less likely to occur around the fastener for attaching the first side piece and the second side piece to the column.

With respect to the above configuration, when the intersections of the axes of the communication holes of the first side piece, the communication holes of the second side piece, and the communication holes of the third side piece are matched, the communication holes of the third side piece The axis may be an angle formed by the axis of the communication hole of the first side piece and the axis of the communication hole of the second side piece, and may be positioned between the corners on the corner side. In this case, “when the intersections of the axes of the communication holes of the first side piece, the communication holes of the second side piece, and the communication holes of the third side piece are matched” is the same as the axis of each communication hole. If it does, it means the state as it is, and when these axes do not intersect at one point, it means the state when at least one of the axes is translated and intersected at one point .

In this case, the axis of the communication hole of the third side piece may coincide with the bisector of the corner corner.

According to the above configuration, each communication hole can be appropriately formed in each piece.

With regard to the above configuration, the support column includes a first plate portion overlapping the first side piece, a second plate portion overlapping the second side piece, and the first plate portion and the second plate portion between the first plate portion and the second plate portion. And a third plate portion overlapping the tongue piece. The plurality of openings include a first opening formed in the first plate portion, a second opening formed in the second plate portion, and a third opening formed in the third plate portion. And may be included. The first side piece may be provided with a first communication hole that overlaps the first opening as the communication hole. The second side piece may be provided with a second communication hole that overlaps the second opening as the communication hole. The tongue piece may be formed with a third communication hole overlapping the third opening as the communication hole.

According to the above configuration, the operator can insert the fastener into the third communication hole and the third opening. As a result of the insertion of the fastener into the third communication hole and the third opening, the relative position of the first side piece with respect to the support column is appropriately determined, so the first communication hole overlaps the first opening. Therefore, the operator can reasonably insert another fastener in the first communication hole and the first opening. As a result of the insertion of the fastener into the third communication hole and the third opening, the relative position of the second side piece with respect to the support column is also appropriately determined, so that the second communication hole overlaps the second opening. Therefore, the operator can reasonably insert another fastener in the second communication hole and the second opening. As a result, the operator can attach the support plate firmly to the support column and easily assemble the housing without generating excessive stress.

With regard to the above configuration, the support plate may include at least one side piece extending from the plate main body portion to the support column side. The first side piece and the second side piece may cooperate with the at least one side piece to entirely surround the plate body.

According to the above configuration, the first side piece and the second side piece cooperate with at least one side piece so as to entirely surround the plate body, and therefore the top plate may have high mechanical strength. it can.

With regard to the above configuration, the support plate is a top plate connected to the upper end portion of the support column, the plate body portion is a top plate portion facing the lower surface of the vehicle, and the top plate is attached to the first side piece. You may include the 1st reinforcement rib which protruded in parallel from the said top plate part, and the 2nd reinforcement rib which protruded from the said ceiling plate part in parallel with the said 2nd side piece.

According to the above configuration, since the top plate is reinforced by the first reinforcing rib and the second reinforcing rib, the top plate can have high mechanical strength.

With regard to the above configuration, a suspended connecting body for suspending the housing from the lower surface is surrounded by the first side piece, the second side piece, the tongue piece, the first reinforcing rib, and the second reinforcing rib. It may be connected to the area of the top plate part.

According to the above configuration, the region of the top plate portion to which the suspended connecting body is connected is surrounded by the first side piece, the second side piece, the tongue piece, the first reinforcing rib, and the second reinforcing rib. The area | region of the top | upper surface board part to which a connection body is connected can have high mechanical strength.

With respect to the above configuration, the first outer fold line formed between the top plate and the first side piece extends in the extending direction of the fastener inserted through the second opening and the second communication hole. It may extend along. The second outer fold line formed between the top plate and the second side piece is an extending direction of another fastener that is inserted into the first opening and the first communication hole. May extend along. In this case, it is preferable that the third outer fold line formed between the top plate portion and the tongue piece is inclined with respect to the first and second outer fold lines. Further, it is preferable that the third outer fold line has an equal inclination angle with respect to each of the first and second outer fold lines.

According to the above configuration, the first outer fold line extends along the extending direction of the fastener inserted through the second opening and the second communication hole, so that the operator can communicate with the third opening and the third communication. When the fastener inserted through the hole is tightened, the support column moves toward the first side piece, and the first opening appropriately overlaps the first communication hole. Therefore, the operator can reasonably insert another fastener in the first communication hole and the first opening, and fasten the first side piece to the first plate portion. Since the second outer fold line extends along the extending direction of another fastener that is inserted through the first opening and the first communication hole, it is inserted through the third opening and the third communication hole. As a result of tightening the fasteners, the struts can also move toward the second side piece. As a result, the second opening appropriately overlaps the second communication hole. Therefore, the operator can reasonably insert another fastener in the second communication hole and the second opening, and fasten the second side piece to the second plate portion. As a result of the unreasonable insertion of the first fastener and the second fastener, no excessive stress is generated around the first fastener and the second fastener.

With regard to the above configuration, the first reinforcing rib includes a first bent rib that is bent along a first inner fold line that extends in parallel with the first outer fold line, and the second side piece from the first bent rib. A first extension rib welded to the top plate so as to extend toward the top. The second reinforcing rib extends along the second inner fold line extending in parallel with the second outer fold line, and extends from the second fold rib toward the first side piece. And a second extension rib welded to the top plate as described above.

According to the above configuration, since the first reinforcing rib includes the first bent rib and the first extending rib, the length of the welding process for forming the first reinforcing rib is shortened. Since the 2nd reinforcement rib contains the 2nd bending rib and the 2nd extension rib, the length of the welding process for forming the 2nd reinforcement rib becomes short.

Regarding the above configuration, the housing may include a cover plate connected to the top plate. The first inner fold line and the second inner fold line may form a part of the outline of the opening region formed in the top plate part. The lid plate may close the opening area.

According to the above configuration, the cover plate closes the opening region formed in the top plate portion, so that the compression mechanism is appropriately protected by the casing.

With respect to the above configuration, the housing includes (i) another pillar supporting one of the two side surfaces in cooperation with the pillar, and (ii) the first outer fold line and the second A girder extending between the two struts along the extending direction of the one outer fold line below one of the outer fold lines, (iii) a support plate for supporting the compression mechanism, and (iv) A vibration isolator sandwiched between the support plate and the girder, and (v) a contact portion that contacts the girder and the contact portion, and extends through the girder, the support plate, and the vibration isolator. And a fastening rod having a penetrating portion. The support plate may include an edge portion that forms a contour of a through hole that allows the fastening rod to pass therethrough. The edge portion may surround the penetrating portion in a non-contact manner. The support plate may be separated from the beam member by the vibration isolator.

According to the above configuration, the edge forming the outline of the through hole allowing the penetration of the fastening rod surrounds the penetration portion of the fastening rod in a non-contact manner, so that vibration generated from the compression mechanism is transmitted through the fastening rod through the girder. It becomes difficult to be transmitted to the material. Since the support plate is separated from the beam member by the vibration isolating material, the vibration generated from the compression mechanism is appropriately damped by the vibration isolating material.

With regard to the above configuration, the housing may include a vibration isolating bush that sandwiches the support plate in cooperation with the vibration isolating material. The anti-vibration bush may at least partially fill a gap between the edge and the penetrating portion.

According to the above configuration, the vibration-proof bushing at least partially fills the gap between the edge and the penetrating portion, so that direct contact between the fastening rod and the support plate is less likely to occur.

Regarding the above configuration, the housing may include a washer into which the fastening rod is inserted. The penetrating portion may include a first rod portion that penetrates the beam member, the vibration isolator, the support plate, and the vibration isolating bush, and a second rod portion that is thinner than the first rod portion. The washer may be supported by a step portion formed between the first rod portion and the second rod portion, and may be separated from the anti-vibration bush.

According to the above configuration, the washer is supported by the step portion formed between the first rod portion and the second rod portion and is separated from the vibration isolating bush, so that the vibration generated from the compression mechanism is transmitted through the fastening rod. It becomes difficult to be transmitted to the girders.

An air compressor according to one aspect of the present invention includes the casing according to any one of claims 1 to 13 and a compression mechanism that is accommodated in an internal space of the casing and generates compressed air. Including.

According to the said structure, an air compression apparatus can be comprised using the housing | casing of each said structure. For this reason, this air compression apparatus can also make it difficult to produce the excessive stress which a designer does not intend like the said housing | casing.

Claims (14)

1. A housing that forms an internal space in which a heavy object is accommodated, a column that is positioned between two side surfaces that form a corner of the internal space, and a support plate that is connected to an upper end or a lower end of the column Including,
   The support plate extends from the plate body part to the column side from the plate body part, and overlaps one of the two side surfaces, and extends from the plate body part to the column side. A second side piece that overlaps the other of the two side surfaces, and a tongue piece that extends from the plate body portion to the column side between the first side piece and the second side piece. ,
   Each of the first side piece, the second side piece, and the tongue piece is formed with a communication hole that overlaps each of a plurality of openings formed in the support column.
2. When the intersections of the axes of the communication hole of the first side piece, the communication hole of the second side piece, and the communication hole of the third side piece are matched, the axis of the communication hole of the third side piece is 2. The casing according to claim 1, wherein the casing is located between an angle formed by an axis of the communication hole of the first side piece and an axis of the communication hole of the second side piece, and the corner on the corner side.
3. The casing according to claim 2, wherein an axis of the communication hole of the third side piece coincides with a bisector of the corner.
4. The support column overlaps the tongue piece between the first plate portion overlapping the first side piece, the second plate portion overlapping the second side piece, and the first plate portion and the second plate portion. A third plate part,
   The plurality of openings include a first opening formed in the first plate portion, a second opening formed in the second plate portion, and a third opening formed in the third plate portion. And including
   The first side piece is formed with a first communication hole that overlaps the first opening as the communication hole,
   The second side piece is formed with a second communication hole overlapping the second opening as the communication hole,
   The housing according to claim 1, wherein a third communication hole that overlaps the third opening is formed in the tongue piece as the communication hole.
5. The support plate includes at least one side piece extending from the plate body portion to the support column side,
   5. The housing according to claim 1, wherein the first side piece and the second side piece cooperate with the at least one side piece to entirely surround the plate main body portion. 6.
6. The support plate is a top plate connected to the upper end of the support column, and the plate main body is a top plate facing the lower surface of the vehicle,
   The top plate is parallel to the first side piece and protrudes from the top plate, and the second reinforcement is parallel to the second side piece and protrudes from the top plate. The housing according to claim 4, comprising a rib.
7. A suspended connecting body for suspending the housing from the lower surface is the ceiling surrounded by the first side piece, the second side piece, the tongue piece, the first reinforcing rib, and the second reinforcing rib. The housing according to claim 6, which is connected to a region of the face plate portion.
8. A first outer fold line formed between the top plate and the first side piece extends along an extending direction of a fastener inserted through the second opening and the second communication hole;
   The second outer fold line formed between the top plate and the second side piece is an extending direction of another fastener that is inserted into the first opening and the first communication hole. The housing according to claim 6 or 7 extending along the line.
9. The first reinforcing rib is a first bent rib that is bent along a first inner fold line that extends in parallel with the first outer fold line, and extends from the first bent rib toward the second side piece. A first extension rib welded to the top plate portion as described above,
   The second reinforcing rib extends along the second inner fold line extending in parallel with the second outer fold line, and extends from the second fold rib toward the first side piece. The housing according to claim 6, further comprising: a second extension rib welded to the top plate part.
10. A lid plate connected to the top plate;
    The first inward fold line and the second inward fold line form a part of the outline of the opening area formed in the top plate part,
    The housing according to claim 9, wherein the lid plate closes the opening region.
11. (I) in cooperation with the support column, another support column that sandwiches one of the two side surfaces; and (ii) below one of the first outer fold line and the second outer fold line. A girder extending between the two struts along the extending direction of the one outer fold line, (iii) a support plate for supporting the compression mechanism, and (iv) the support plate and the girder And (v) a fastening rod having a contact portion that contacts the beam member and a penetrating portion that extends from the contact portion and penetrates the beam member, the support plate, and the vibration isolation material. Further including
    The support plate includes an edge portion that forms an outline of a through hole that allows the fastening rod to pass therethrough,
    The edge portion surrounds the penetrating portion in a non-contact manner,
    The housing according to any one of claims 8 to 10, wherein the support plate is separated from the beam member by the vibration isolator.
12. In cooperation with the vibration isolator, further comprising an anti-vibration bush sandwiching the support plate,
    The housing according to claim 11, wherein the vibration-proof bushing at least partially fills a gap between the edge portion and the penetrating portion.
13. Further comprising a washer into which the fastening rod is inserted;
    The penetrating portion includes a first rod portion that penetrates the beam member, the vibration isolator, the support plate, and the vibration isolating bush, and a second rod portion that is thinner than the first rod portion,
    The housing according to claim 12, wherein the washer is supported by a step portion formed between the first rod portion and the second rod portion, and is separated from the anti-vibration bush.
14. An air compression apparatus comprising: the casing according to any one of claims 1 to 13; and a compression mechanism that is accommodated in an internal space of the casing and generates compressed air.

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