EP4707596A1 - Case, method for assembling case, and method for manufacturing component assembly - Google Patents

Abstract

[Problem] A need exists for facilitating the attachment work of a case in a case where a case fitted to a vehicle component as a noise source is divided into two separate components.

[Solution] A case 10 of the present disclosure is divided into a first case member 11 and a second case member 41, and has a configuration in which a first coupling protrusion 15 of the first case member 11 and a second coupling protrusion 45 of the second case member 41 are hingedly coupled. As a result, it is not necessary to insert a hand into a region below the first and second case members 11 and 41, and it is possible to facilitate the work as compared with a configuration in which engagement claws and claw engagement portions are provided at both an upper end portion and a lower end portion to fix the case members.

Description

TECHNICAL FIELD
• The present disclosure relates to a case for a vehicle component as a noise source.
BACKGROUND ART
• A conventional case formed by combining two case members is known (see, for example, Patent Document 1).
RELATED ART DOCUMENTS PATENT DOCUMENTS
• Patent Document 1: JP 2020-133408 A (FIG. 2, paragraph [0021], and the like)
SUMMARY OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION
• In the case described above, the two case members and a hinge portion are integrated. However, for example, when the case is attached to a vehicle component in a vehicle assembly process, it may be sometimes necessary to attach the two case members one by one as separate components. A need exists for facilitating the attachment work of a case in a situation where the case is divided into two separate components as described above.
SOLUTIONS TO PROBLEMS
• A case according to claim 1 made to solve the above problem is a case including: first and second case members configured to be fitted to a vehicle component as a noise source, from both sides of the vehicle component, and to be brought into a combined state of being combined with each other; mating surfaces provided in the first and second case members and configured to be brought into contact with each other in the combined state; a first coupling protrusion provided on the first case member and protruding beyond the mating surface toward the second case member on a lateral side of the mating surface; a second coupling protrusion provided on the second case member and protruding toward the first coupling protrusion; and a hinge protrusion and a hinge receiving portion provided separately in the first coupling protrusion and the second coupling protrusion, and configured to be changeable between a state of being separated from each other and a state of engaging with each other to rotatably couple the first and second case members.
ADVANTAGEOUS EFFECTS OF THE INVENTION
• In the case of claim 1, one side edge of the first case member and one side edge of the second case member are hingedly coupled, so that the case can be attached even if a space around the one side edges is narrow. It is possible to facilitate the attachment work of the case as compared with, for example, the one having a lock mechanism in which both one side edges and the other side edges of the first and second case members need to be operated with fingers.
BRIEF DESCRIPTION OF THE DRAWINGS
• [FIG. 1] FIG. 1 is a perspective view of a case in a state in which a compressor is accommodated in the case according to a first embodiment.
• [FIG. 2] FIG. 2 is a perspective view of the compressor.
• [FIG. 3] FIG. 3 is a perspective view of the case in an open state.
• [FIG. 4] FIG. 4 is an enlarged view of a lower end portion of the case in the open state.
• [FIG. 5] FIG. 5 is a perspective view of a first case member.
• [FIG. 6] FIG. 6 is a perspective view of the first case member.
• [FIG. 7] FIG. 7 is a perspective view of a second case member.
• [FIG. 8] FIG. 8 is a perspective view of the second case member.
• [FIG. 9] FIG. 9 is a cross-sectional view of the case in a state in which the compressor is accommodated in the case.
• [FIG. 10] FIG. 10 is a perspective view of the second case member.
• [FIG. 11] FIG. 11 is a cross-sectional view of first and second coupling protrusions.
• [FIG. 12] FIG. 12 is a cross-sectional view around a projecting portion of the case.
• [FIG. 13] FIG. 13 is a cross-sectional view of the lower end portion of the case in a state where a hinge protrusion is inserted into a hinge receiving portion.
• [FIG. 14] FIG. 14 is a cross-sectional view of the lower end portion of the case in a state where a triangular rib abuts against a second distal end wall portion.
• [FIG. 15] FIG. 15 is a cross-sectional view of the lower end portion of the case in a state where an interference wall abuts against the second distal end wall portion.
• [FIG. 16] FIG. 16A is a perspective view of a lower end portion of a case according to a modification, and FIG. 16B is a cross-sectional view of the lower end portion of the case according to the modification.
• [FIG. 17] FIG. 17A is a perspective view of a lower end portion of a case according to a modification, and FIG. 17B is a cross-sectional view of the lower end portion of the case according to the modification.
MODE FOR CARRYING OUT THE INVENTION [First Embodiment]
• Hereinafter, a case 10 of the present disclosure will be described with reference to FIGS. 1 to 15. As illustrated in FIG. 1, the case 10 of the present embodiment is a soundproof case that surrounds a compressor 90 for a car air conditioner to absorb or block noise such as drive sound generated from the compressor 90.
• As illustrated in FIG. 2, the compressor 90 has a substantially cylindrical shape, and includes a first large diameter portion 90A, a first small diameter portion 90B, a second large diameter portion 90C, and a second small diameter portion 90D in this order from one axial end (a right end in FIG. 2). Hereinafter, in the present embodiment, the axial direction of the compressor 90 is referred to as "first horizontal direction H1", and a direction perpendicular to the first horizontal direction H1 and a vertical direction is referred to as "second horizontal direction H2".
• The first small diameter portion 90B and the second large diameter portion 90C of the compressor 90 are longer than the first large diameter portion 90A and the second small diameter portion 90D in the axial direction. Fixing portions 91 for fixing the compressor 90 to a nearby vehicle component are provided on an outer surface of the compressor 90. Each of the fixing portions 91 includes a prismatic portion 91A extending in the second horizontal direction H2, and a connecting portion 91B that connects the prismatic portion 91A and a cylindrical surface of the compressor 90. A through hole 91H for inserting a bolt is formed at the center of the prismatic portion 91A. The respective fixing portions 91 are disposed on the first small diameter portion 90B near the second large diameter portion 90C and the second large diameter portion 90C near the second small diameter portion 90D in an upper end portion of the compressor 90, and disposed on the first small diameter portion 90B near the first large diameter portion 90A and a position across the first large diameter portion 90A and the first small diameter portion 90B in a lower end portion of the compressor 90. A pipe 92 protrudes from a cylindrical bottom surface of the compressor 90 on the first large diameter portion 90A side.
• As illustrated in FIGS. 1 and 3, the case 10 includes semi-cylindrical first and second case members 11 and 41 obtained by vertically dividing an approximate cylinder having closed both ends, and the first and second case members 11 and 41 are switched between a state of being separated from each other and a state of being rotatably coupled. When the first and second case members 11 and 41 are brought into contact with each other on mating surfaces 11M and 41M (see FIG. 9) to be brought into a combined state, an accommodating space R for accommodating the compressor 90 is formed therein.
• The first and second case members 11 and 41 both include hard cover members 12 and 42 and soft cushioning members 30 and 60 fixed to the inner sides of the cover members 12 and 42. The cover members 12 and 42 are made of, for example, a non-foamed resin, and the cushioning members 30 and 60 are made of, for example, a foamed resin. The cover members 12 and 42 and the cushioning members 30 and 60 are not limited to these materials. The first and second case members 11 and 41 may have a single-layer structure made of a non-foamed resin or a single-layer structure made of a foamed resin.
• In the first and second case members 11 and 41, component receiving portions 11U and 41U (see FIGS. 5 and 8), which form the accommodating space R in the combined state, are formed, and their opening edges serve as the above-described mating surfaces 11M and 41M. The first and second case members 11 and 41 are provided with irregularities corresponding to the outer shape of the compressor 90. Specifically, as illustrated in FIGS. 1 and 5, the first and second case members 11 and 41 include, in order from one axial ends (right ends in FIG. 1), first large diameter portions 11A and 41A, first small diameter portions 11B and 41B, second large diameter portions 11C and 41C, and second small diameter portions 11D and 41D, and further include projecting portions 11E and 41E protruding upward and downward from the other end portions (left end portions in FIG. 1) in the first horizontal direction H1 of the second large diameter portions 11C and 41C, and from the second small diameter portions 11D and 41D.
• As illustrated in FIGS. 5 and 8, the respective component receiving portions 11U and 41U are formed in a range from the vicinity of the end portions of the first and second case members 11 and 41 on the first large diameter portions 11A and 41A side to the vicinity of the end portions on the second small diameter portions 11D and 41D side. The first large diameter portions 11A and 41A and the second small diameter portions 11D and 41D include cylindrical bottom walls 11A1, 41A1, 11D1, and 41D1 facing the compressor 90 in the first horizontal direction H1.
• In the first and second case members 11 and 41, a plurality of cutouts 11K and 41K are formed for exposing the fixing portions 91 and the pipe 92 (see FIG. 2) of the compressor 90. The cutouts 11K and 41K for exposing each of the upper fixing portions 91 extend in a circumferential direction from upper edges of the first and second case members 11 and 41, and cooperatively form a long hole extending in the circumferential direction when their openings 11L and 41L are brought into abutment against each other in a fixed state. Similarly, the cutouts 11K and 41K for exposing each of the lower fixing portions 91 extend in the circumferential direction from lower edges of the first and second case members 11 and 41, and cooperatively form a long hole extending in the circumferential direction when their openings 11L and 41L are brought into abutment against each other in a fixed state. The cutout 41K for exposing the pipe 92 extends in the second horizontal direction H2 from a side edge on the first large diameter portion 41A side in the mating surface 41M of the second case member 41, and forms a through hole when its opening 41L are brought into abutment against the mating surface 11M of the first case member 11 (see FIG. 1).
• In the present embodiment, among the two cutouts 11K and 41K extending in the circumferential direction on each of the upper and lower sides, the mating surfaces 11M and 41M on the second small diameter portions 11D and 41D side from the upper cutouts 11K and 41K on the second small diameter portions 11D and 41D side and the lower cutouts 11K and 41K on the first large diameter portions 11A and 41A side are located on the second case member 41 side as compared with the mating surfaces 11M and 41M on the first large diameter portions 11A and 41A side.
• As illustrated in FIG. 4, a first coupling protrusion 15 and a second coupling protrusion 45 for being rotatably coupled to each other are provided at lower end portions of the first and second case members 11 and 41. Hereinafter, the first and second case members 11 and 41 including the first coupling protrusion 15 and the second coupling protrusion 45 will be described in detail.
• As illustrated in FIG. 5, claw engagement portions 25 are provided on the first large diameter portion 11A, the second large diameter portion 11C, and the projecting portion 11E in an upper end portion of the first case member 11. Each of the claw engagement portions 25 includes a pair of side walls 26 protruding upward from an upper end portion of the cover member 12 and facing each other in the first horizontal direction H1, and a locking wall 27 connecting upper ends of the side walls 26 that are also end portions on the mating surface 11M side of the side walls 26. The locking wall 27 is inclined downward with increasing distance from the mating surface 11M (see FIG. 9). The claw engagement portion 25 is provided with finger hook walls 28 extending in the first horizontal direction H1 so as to be separated from each other from end portions of the pair of side walls 26 on the side opposite to the mating surface 11M.
• As illustrated in FIGS. 5 and 6, a bulging portion 11R in which lower end portions of the first small diameter portion 11B and the second large diameter portion 11C bulge downward is provided between the two lower cutouts 41K of the first case member 11. A lower edge of the bulging portion 11R is disposed at substantially the same height as a lower edge of the projecting portion 11E. The first coupling protrusion 15 described above is disposed at two positions: a portion of the bulging portion 11R below the first small diameter portion 11B, and the projecting portion 11E. In the first coupling protrusion 15 of the projecting portion 11E, only about a 1/3 to 1/4 portion on the first large diameter portion 11A side overlaps the component receiving portion 11U in the first horizontal direction H1, and the remaining portion is shifted from the component receiving portion 11U. As a result, the first coupling protrusions 15 are disposed at a position at least partially shifted from the component receiving portion 11U in the first horizontal direction H1, and at a position below the component receiving portion 11U where the small diameter portion (the first small diameter portion 90B) of the compressor 90 is accommodated.
• In the cover member 12 of the first case member 11, extension walls 14 suspended downward from a lower edge portion of the cover member 12 are formed at two positions corresponding to the first coupling protrusions 15. Surfaces of the extension walls 14 facing the second case member 41 also constitute a part of the mating surface 11M. Each first coupling protrusion 15 protrudes from the corresponding extension wall 14 toward the second case member 41, and includes a first proximal end wall portion 16 protruding from the extension wall 14, a first distal end wall portion 17 obliquely below the first proximal end wall portion 16, and a pair of connecting wall portions 18 that connects the first proximal end wall portion 16 and the first distal end wall portion 17. On a surface of each extension wall 14 opposite to the mating surface 11M, a reinforcing rib 14L that connects the extension wall 14 and a lower surface of the bulging portion 11R or the projecting portion 11E is formed.
• The connecting wall portions 18 include lateral walls 18A extending in the second horizontal direction H2 from a pair of lateral sides of the extension wall 14, and vertical walls 18B suspended from distal ends of the lateral walls 18A. The first proximal end wall portion 16 extends substantially perpendicular to the mating surface 11M from a lower end of the extension wall 14 to an approximate center position of the lateral walls 18A. The first distal end wall portion 17 extends in parallel with the first proximal end wall portion 16 between lower ends of the vertical walls 18B of the connecting wall portions 18, and slightly protrudes toward the mating surface 11M beyond the vertical walls 18B. A portion between the first proximal end wall portion 16 and the first distal end wall portion 17 serves as a hinge receiving portion 20 passing through the first coupling protrusion 15. Since the first distal end wall portion 17 is disposed below the first proximal end wall portion 16 and on the side facing the second case member 41, the hinge receiving portion 20 has an opening surface inclined outward with respect to a plane that is perpendicular to the mating surface 11M. The first distal end wall portion 17 may be disposed on the same plane as the first proximal end wall portion 16, and the opening surface of the hinge receiving portion 20 may be directed vertically upward.
• As illustrated in FIG. 5, the cover member 12 of the first case member 11 is provided with a flange wall 11F1 protruding from a lower edge of the first large diameter portion 11A to substantially the same height as a lower edge of the extension wall 14, and a flange portion 11F2 protruding from an upper edge and a side edge of the first large diameter portion 11A, an upper edge of the first small diameter portion 11B, and an upper edge of the projecting portion 11E by about one plate thickness to extend the mating surface 11M.
• As illustrated in FIG. 10, engagement claws 55 that engage with the claw engagement portions 25 of the first case member 11 are provided at an upper end portion of the second case member 41. Each engagement claw 55 extends toward the first case member 11 from an upright wall 54 standing upright from an upper end portion of the cover member 42, and its distal end serves as a barbed portion 56. The barbed portion 56 includes a first inclined surface 56A inclined upward from the distal end of the engagement claw 55 toward the proximal end side, a second inclined surface 56B having an inclination smaller than that of the first inclined surface 56A, and a locking surface 56C extending downward from a proximal end-side end portion of the second inclined surface 56B and perpendicular to a body portion of the engagement claw 55. In the combined state with the first case member 11, the locking surface 56C abuts against an end surface of the locking wall 27 of each claw engagement portion 25 in the first case member 11, whereby the engagement claw 55 engages with the claw engagement portion 25 (see FIG. 9).
• In addition, the engagement claw 55 is disposed at a central portion in the first horizontal direction H1 of the upright wall 54, and protruding walls 54A protruding to the same height as the side walls 26 of the claw engagement portion 25 are provided on the both lateral sides of the engagement claw 55 in the upright wall 54. As illustrated in FIG. 9, in a state where the engagement claw 55 engages with the claw engagement portion 25, the engagement claw 55 is located below the side walls 26 of the claw engagement portion 25 and the protruding walls 54A of the upright wall 54 so as not to protrude beyond them. A reinforcing rib 55L that connects the engagement claw 55 and the upright wall 54 is provided on a lower surface of the engagement claw 55.
• As illustrated in FIGS. 7 and 8, the second case member 41 includes a bulging portion 41R that bulges to the same height as a lower end of the second large diameter portion 41C, in a lower end portion of the first small diameter portion 41B. Lower ends of the bulging portion 41R and the second large diameter portion 41C, and a lower end of the projecting portion 41E have the same height, and a lower wall 41S protruding downward from these lower ends is formed integrally with the cover member 42.
• Similarly to the flange wall 11F1 and the flange portion 11F2 of the first case member 11, the second case member 41 is also provided with a flange wall 41F1 protruding from a lower edge of the first large diameter portion 41A, and a flange portion 41F2 protruding from an upper edge and a side edge of the first large diameter portion 41A, an upper edge of the first small diameter portion 41B, and an upper edge and a side edge of the projecting portion 41E by about one plate thickness.
• As illustrated in FIGS. 7 and 8, the second coupling protrusion 45 is disposed at two positions corresponding to the first coupling protrusions 15: a position below the first small diameter portion 41B, and a position below the projecting portion 41E, in the lower wall 41S. In the lower wall 41S, extension walls 44 suspended downward are formed at two positions corresponding to the second coupling protrusions 45. Surfaces of the extension walls 44 facing the first case member 11 also constitute a part of the mating surface 41M. Each second coupling protrusion 45 includes: a second proximal end wall portion 46 protruding from the corresponding extension wall 44 to the side opposite to the first case member 11, a suspended wall portion 48 suspended from a distal end of the second proximal end wall portion 46, and a second distal end wall portion 47 bent from a lower end of the suspended wall portion 48 to the side opposite to the first case member 11. The suspended wall portion 48 and the second distal end wall portion 47 cooperatively constitute a hinge protrusion 50. In other words, a distal end portion of the hinge protrusion 50 protruding from the second proximal end wall portion 46 is bent to form the second distal end wall portion 47. The second proximal end wall portion 46 protrudes outward beyond the projecting portion 41E and the bulging portion 41R in the second horizontal direction H2.
• About a 1/3 lower portion of the suspended wall portion 48 is tapered so as to have a smaller width toward the lower side, and the second distal end wall portion 47 extends with the same width as the tapered distal end of the suspended wall portion 48. The width of the second distal end wall portion 47 is about 1/2 to 1/3 of the width of the second proximal end wall portion 46. A tapered surface 46T inclined so as to make a horizontal cross section smaller toward the lower side is formed on an outer edge of the second proximal end wall portion 46.
• In addition, as illustrated in FIG. 7, a triangular rib 51 that connects the second proximal end wall portion 46 and the suspended wall portion 48 of the hinge protrusion 50 is formed in each second coupling protrusion 45. The triangular rib 51 is disposed at the center in the first horizontal direction H1 of the second distal end wall portion 47, and its oblique side connects a corner portion between the second proximal end wall portion 46 and the lower wall 41S with a bent portion of the hinge protrusion 50 (a corner portion between the suspended wall portion 48 and the second distal end wall portion 47). A proximal end cutout 16K capable of receiving the triangular rib 51 is formed in the first proximal end wall portion 16 of each first coupling protrusion 15 (see FIGS. 5 and 11).
• As illustrated in FIGS. 7 and 11, interference walls 52 are formed at two positions of each second coupling protrusion 45 with the triangular rib 51 disposed therebetween in the first horizontal direction H1. The interference walls 52 are disposed on the second proximal end wall portion 46 on the side opposite to the hinge protrusion 50, and connect the second proximal end wall portion 46 and the lower wall 41S with the projecting portion 41E or the bulging portion 41R. An outer edge of each interference wall 52 includes, at its lower portion, an interference surface 52A extending flush with an outer surface of the suspended wall portion 48 (that is, a surface from which the second distal end wall portion 47 rises), and at its upper portion, an inclined surface 52B inclined toward the projecting portion 41E or the bulging portion 41R.
• In the combined state of the case 10 as illustrated in FIG. 12, a portion of the second proximal end wall portion 46 of the second coupling protrusion 45 on the mating surface 41M side is brought into contact with the first proximal end wall portion 16 of the first coupling protrusion 15 from the mating surfaces 11M and 41M side, and a portion of the second proximal end wall portion 46 of the second coupling protrusion 45 on the suspended wall portion 48 side faces the hinge receiving portion 20 of the first coupling protrusion 15 from above. At this time, the triangular rib 51 is received in the proximal end cutout 16K of the first proximal end wall portion 16. The hinge protrusion 50 of the second coupling protrusion 45 passes through the hinge receiving portion 20 of the first coupling protrusion 15, and the second distal end wall portion 47 of the second coupling protrusion 45 is brought into contact with the first distal end wall portion 17 of the first coupling protrusion 15 from the side opposite to the mating surfaces 11M and 41M. As a result, the first case member 11 and the second case member 41 are positioned in the vertical direction.
• In the combined state, the mating surfaces 11M and 41M are brought into contact with each other, and the suspended wall portion 48 abuts against an opening edge of the hinge receiving portion 20 on the first distal end wall portion 17 side, whereby the first case member 11 and the second case member 41 are positioned in the second horizontal direction H2. As illustrated in FIG. 11, both side edges of the first proximal end wall portion 16 of the second coupling protrusion 45 abut against or are in the vicinity of the pair of connecting wall portions 18 of the first coupling protrusion 15, whereby the first case member 11 and the second case member 41 are positioned in the first horizontal direction H1 as well.
• In the present embodiment, the configuration in which the both side edges of the first proximal end wall portion 16 abut against or are in the vicinity of the pair of connecting wall portions 18 of the first coupling protrusion 15 is adopted in both the two sets of the first and second coupling protrusions 15 and 45, but may be adopted only in one set. In this case, even if an interval between the first coupling protrusions 15 and an interval between the second coupling protrusions 45 differ from each other due to manufacturing variations or the like, it is possible to couple both the two sets of the first and second coupling protrusions 15 and 45 while performing positioning in the first horizontal direction H1 using the one set of the first and second coupling protrusions 15 and 45. The first and second coupling protrusions 15 and 45 may be one set, or three or more sets.
• The first and second coupling protrusions 15 and 45 are changed from a state of being separated from each other to a state of engaging with each other to rotatably couple the first and second case members 11 and 41 by inserting the hinge protrusion 50 of the second coupling protrusion 45 into the hinge receiving portion 20 of the first coupling protrusion 15 as illustrated in FIG. 13. At this time, since the suspended wall portion 48 is tapered and the width of the second distal end wall portion 47 is made to be smaller, the distal end of the hinge protrusion 50 (the second distal end wall portion 47) is easily inserted into the hinge receiving portion 20, and is positioned as it goes deeper. Since the hinge protrusion 50 can be coupled to the hinge receiving portion 20 without interference, the hinge portions are less likely to be damaged as compared with, for example, a configuration in which the hinge portions are elastically deformed to be coupled.
• The second case member 41 is rotated with respect to the first case member 11 such that the mating surfaces 11M and 41M approach each other. At this time, the corner portion between the second proximal end wall portion 46 and the lower wall 41S or an upper end portion of the triangular rib 51 is brought into abutment against the mating surface 11M of the first case member 11 to serve as a fulcrum for rotation, so that the rotation can be guided. When the second case member 41 is rotated to some extent, the second distal end wall portion 47 of the hinge protrusion 50 faces the first distal end wall portion 17 of the first coupling protrusion 15 from below and interferes therewith, to prevent a movement of the second case member 41 in a direction in which the coupling between the first coupling protrusion 15 and the second coupling protrusion 45 is released.
• When the mating surfaces 11M and 41M are brought into contact with each other, the second proximal end wall portion 46 of the second coupling protrusion 45 is laid on the first proximal end wall portion 16 of the first coupling protrusion 15, the second distal end wall portion 47 of the hinge protrusion 50 is located under and abuts against the first distal end wall portion 17 of the first coupling protrusion 15, and the suspended wall portion 48 of the hinge protrusion 50 abuts against the opening edge of the hinge receiving portion 20 on the first distal end wall portion 17 side.
• In addition, the engagement claw 55 of the second coupling protrusion 45 reaches the claw engagement portion 25 of the first coupling protrusion 15 immediately before the combined state during the rotation. When the second case member 41 keeps being rotated, the first inclined surface 56A or the second inclined surface 56B of the barbed portion 56 of the engagement claw 55 abuts against the inclined locking wall 27 of the claw engagement portion 25, and the engagement claw 55 moves toward the deeper side while being elastically deformed. When the mating surfaces 11M and 41M are brought into contact with each other, the barbed portion 56 of the engagement claw 55 passes through the locking wall 27, and the engagement claw 55 is elastically restored. Then, the locking surface 56C abuts against the end surface of the locking wall 27 of the claw engagement portion 25, and the engagement claw 55 engages with the claw engagement portion 25. As a result, the case 10 is brought into the combined state.
• At this time, a problem may occur in which the upright wall 54 having the engagement claw 55 bends to be away from the claw engagement portion 25, and the barbed portion 56 does not fully pass through the locking wall 27. In this case, it is conceivable to push the engagement claw 55 by pinching the claw engagement portion 25 and the upright wall 54. At this time, since the finger hook walls 28 are provided on the side walls 26 of the claw engagement portion 25 and the protruding walls 54A are provided on the upright wall 54, a finger is in contact with a larger area, and is less likely to hurt. In addition, the side walls 26 of the claw engagement portion 25 and the protruding walls 54A of the upright wall 54 protrude upward beyond the engagement claw 55. Thus, even if a nearby member or the like approaches the engagement claw 55 from above, the nearby member or the like abuts against the side walls 26 of the claw engagement portion 25 and the protruding walls 54A of the upright wall 54 thereby to be prevented from abutting against the engagement claw 55. This prevents disengagement of the engagement claw 55 by being unintentionally pushed from above.
• In opening the case 10, the engagement is released by moving the engagement claw 55 toward the locking wall 27 while pushing the engagement claw 55 from above, and the second case member 41 can be rotated outward.
• If the distal end of the hinge protrusion 50 (the second distal end wall portion 47) does not enter the hinge receiving portion 20 at the time of inserting the hinge protrusion 50 into the hinge receiving portion 20 and the second case member 41 starts to rotate in this state, a loss of time is considered to occur.
• To cope with this, in the present embodiment, the triangular rib 51 is provided in the second coupling protrusion 45. If the second coupling protrusion 45 is lowered in a state where the distal end of the hinge protrusion 50 is displaced from the hinge receiving portion 20 and disposed outside the first distal end wall portion 17, the oblique side of the triangular rib 51 abuts against the distal end of the first distal end wall portion 17, and the second case member 41 slides obliquely downward (see FIG. 14), which can be an alert that the hinge protrusion 50 is not in the hinge receiving portion 20 at an early stage.
• If the hinge protrusion 50 is inserted too deep to make the lower wall 41S of the second case member 41 come close to the first distal end wall portion 17 of the first coupling protrusion 15 at the time of inserting the hinge protrusion 50 into the hinge receiving portion 20, for example, it is considered that an upper surface of the second proximal end wall portion 46 of the second coupling protrusion 45 interferes with the first distal end wall portion 17 of the first coupling protrusion 15, for example, and thus the rotation becomes difficult.
• To cope with this, in the present embodiment, the interference walls 52 are provided on the second proximal end wall portion 46 of the second coupling protrusion 45. Therefore, even if the second distal end wall portion 47 is inserted deep into the hinge receiving portion 20 in a state where the second case member 41 is opened by 90 degrees as illustrated in FIG. 15, the interference surfaces 52A of the interference walls 52 abut against the first distal end wall portion 17, so that the second coupling protrusion 45 does not go too far, and the attachment work becomes smooth.
• Next, attachment of the case 10 to the compressor 90 will be described. The attachment of the case 10 is performed in a vehicle assembly line. First, of the first and second case members 11 and 41, only the first case member 11 is disposed on a side surface of a nearby vehicle component 101 (see FIGS. 12 and 13), and the compressor 90 is received in the component receiving portion 11U of the first case member 11. Then, bolts are inserted into the through holes 91H of the fixing portions 91 of the compressor 90, and the compressor 90 is fixed to the nearby vehicle component in a state where the first case member 11 is fitted thereto.
• The first case member 11 may be first fitted to the compressor 90, and in this state, the first case member 11 and the compressor 90 may be fixed to the nearby vehicle component. Alternatively, only the first case member 11 may be fixed to the nearby vehicle component, and the compressor 90 may be fixed thereon.
• Next, the hinge protrusion 50 of the second case member 41 is inserted into and coupled to the hinge receiving portion 20 of the first case member 11, and the second case member 41 is rotated. Then, the mating surfaces 11M and 41M are brought into contact with each other, and the engagement claw 55 engages with the claw engagement portion 25, so that the case 10 is brought into the combined state in which the first and second case members 11 and 41 are fitted to the compressor 90. Thereafter, other components are also attached to complete a component assembly 100 (see FIG. 12). The case 10 of the present embodiment may be used in a situation where the compressor is fixed to the nearby vehicle component after the first and second case members have been fitted to the compressor.
• In a conventional case for a compressor, two case members and a hinge portion are integrated. When the case is attached to the compressor in a vehicle assembly line as in the present embodiment, it may be difficult to install the compressor in a state where the case has been attached thereto. However, in the present embodiment, since the case 10 is divided into the first and second case members 11 and 41, the above-described problem is solved.
• Here, it is also conceivable to fix the two case members by, for example, providing the engagement claws and the claw engagement portions in both the upper end portion and the lower end portion. However, a space for inserting a hand for engaging the engagement claw with the claw engagement portion may be narrow depending on installation layout of other vehicle components, which makes the work difficult. To cope with this, in the case 10 of the present embodiment, since the lower end portions of the first and second case members 11 and 41 are provided with an insertion hinge, it is not necessary to insert a hand into a region below the first and second case members 11 and 41, and it becomes easy to perform the work. In addition, since there is no need to secure the space for inserting a hand, the component assembly can be made compact.
• The first coupling protrusion 15 protrudes in the second horizontal direction H2 so as to be separated from the mating surface 11M, which makes it easy to visually recognize the first coupling protrusion 15 from obliquely above, and to insert the hinge protrusion 50 even in a state where the compressor 90 is received in the component receiving portion 11U. Furthermore, the opening surface of the hinge receiving portion 20 is directed obliquely upward, which makes it easier to find the position of the hinge receiving portion 20.
• Moreover, in the present embodiment, since one of the two sets of the first and second coupling protrusions 15 and 45 is disposed at a position at least partially shifted from the component receiving portions 11U and 41U, the first coupling protrusion 15 of the one set does not overlap the compressor 90 and is easily visually recognized. Therefore, by aligning the second coupling protrusion 45 of the one set with the first coupling protrusion 15 of the one set, the first and second case members 11 and 41 can be easily aligned. Furthermore, since the first and second coupling protrusions 15 and 45 of the other set are disposed at a position below the portion where the small diameter portion (the first small diameter portion 90B) of the compressor 90 is accommodated, a gap between the first coupling protrusion 15 of the other set and a lower surface of the compressor 90 (a lower surface of the first small diameter portion 90B) increases, and the first coupling protrusion 15 of the other set is also easily visually recognized.
• In addition, in the present embodiment, since the first and second case members 11 and 41 have a two-layer structure including the cover members 12 and 42 and the cushioning members 30 and 60, it is possible to stably fix the first and second case members 11 and 41 to each other by disposing the first and second coupling protrusions 15 and 45, the engagement claws 55, and the claw engagement portions 25 in the relatively hard cover members 12 and 42 while protecting the compressor 90 by the cushioning members 30 and 60.
[Other Embodiments]
• In the above embodiment, the case 10 is configured in the substantially cylindrical shape, but is not limited to this shape, and may have, for example, a rectangular parallelepiped shape. The compressor 90 is also not limited to the cylindrical shape. The case 10 may be used for a compressor for a car air conditioner having a shape other than the cylindrical shape.
• In the above embodiment, the case 10 is used with the mating surfaces 11M and 41M facing each other in the second horizontal direction H2, but may be used with the mating surfaces 11M and 41M facing each other in the vertical direction. For example, the first case member 11 may be attached in a state where the component receiving portion 11U is directed upward, and the compressor 90 may be installed thereon.
• The triangular rib 51 need not be provided.
• The interference walls 52 need not be provided.
• As illustrated in FIG. 16, the first proximal end wall portion 16 and the first distal end wall portion 17 may be disposed on the same plane without providing a step in the first coupling protrusion 15. In this case, the second coupling protrusion 45 may be bent and abut against the first proximal end wall portion 16 and the first distal end wall portion 17 as in the above first embodiment, or the second coupling protrusion 45 may have a flat plate shape and abut against the opening edge of the hinge receiving portion 20 without abutting against the first proximal end wall portion 16 and the first distal end wall portion 17 as illustrated in FIG. 16. In addition, the first coupling protrusion 15 of the above first embodiment may be coupled to the second coupling protrusion 45 having a flat plate shape.
• As illustrated in FIG. 17, a shaft portion 15J may be provided in the first coupling protrusion 15, and a receiving portion 15U that receives the shaft portion 15J may be provided in the second coupling protrusion 45. The receiving portion 15U has a circular cross section, and includes, at its lower portion, a shaft passing portion 15T that allows communication between the inside and the outside of the receiving portion 15U. The shaft passing portion 15T is disposed in a range close to the first case member 11 including a lower end portion of the receiving portion 15U, and is narrower than the inner diameter of the receiving portion 15U. The shaft portion 15J has a shape obtained by removing the outer sides of two parallel planes from a circle, and extends at an angle inclined by about 45 degrees from the mating surface 11M of the first case member 11.
• In a state where the second case member 41 is opened with respect to the first case member 11 and the orientation of the shaft passing portion 15T with respect to the center of the receiving portion 15U and the orientation of the shaft portion 15J are aligned, the first coupling protrusion 15 and the second coupling protrusion 45 can be coupled to or separated from each other. When the first and second case members 11 and 41 approach the combined state, an inner side surface of the receiving portion 15U (an opening edge of the shaft passing portion 15T) and the shaft portion 15J interfere with each other, and the first coupling protrusion 15 and the second coupling protrusion 45 become difficult to separate from each other.
• The shaft portion 15J may have a circular cross section and may be received in the receiving portion 15U by elastic deformation.
<Supplementary Note>
• Hereinafter, a feature group extracted from the above embodiments will be described while showing the effects and the like as necessary. It should be noted that corresponding components in the above embodiments are appropriately indicated in parentheses or the like below for easy understanding, but the feature group is not limited to the specific components indicated in the parentheses or the like.
[Feature 1]
• A case (10) including:
• first and second case members (11, 41) configured to be fitted to a vehicle component (90) as a noise source, from both sides of the vehicle component, and to be brought into a combined state of being combined with each other;
• mating surfaces (11M, 41M) provided in the first and second case members (11, 41) and configured to be brought into contact with each other in the combined state;
• a first coupling protrusion (15) provided on the first case member (11) and protruding beyond the mating surface (11M) toward the second case member (41) on a lateral side of the mating surface (11M);
• a second coupling protrusion (45) provided on the second case member (41) and protruding toward the first coupling protrusion (15); and
• first and second hinge portions (20, 50) provided separately in the first coupling protrusion (15) and the second coupling protrusion (45), and configured to be changeable between a state of being separated from each other and a state of engaging with each other to rotatably couple the first and second case members (11, 41).
• In the case of the feature 1, one side edge of the first case member and one side edge of the second case member are hingedly coupled, so that the case can be attached even if a space around the one side edges is narrow. It is possible to facilitate the attachment work of the case as compared with, for example, the one having a lock mechanism in which both one side edges and the other side edges of the first and second case members need to be operated with fingers. In addition, since the first coupling protrusion protrudes beyond the mating surface toward the second case member, the first coupling protrusion is easy to find when viewed from the other side edge, and the second hinge portion is easily coupled to the first hinge portion.
[Feature 2]
• The case (10) according to the feature 1, wherein
• the first hinge portion (20) is a hinge receiving portion (20) passing through the first coupling protrusion (15) and having an opening surface inclined to open outward with respect to a plane perpendicular to the mating surface (11M) of the first case member (11), and
• the second hinge portion (50) is a hinge protrusion (50) disposed in the second coupling protrusion (45) and configured to pass through the hinge receiving portion (20).
• In the case of the feature 2, since the hinge receiving portion is obliquely open, the hinge receiving portion can be visually recognized when viewed from both the other side edge of the first case member and a direction perpendicular to the mating surface.
[Feature 3]
• The case according to the feature 2, wherein
  the first coupling protrusion (15) includes:
• a first proximal end wall portion (16) perpendicular to the mating surface (11M) of the first case member (11);
• a first distal end wall portion (17) parallel to the first proximal end wall portion (16), separated laterally from the first proximal end wall portion (16) toward the second case member (41), and having the hinge receiving portion (20) between the first proximal end wall portion (16) and the first distal end wall portion (17); and
• a pair of connecting wall portions connecting the first proximal end wall portion (16) and the first distal end wall portion (17) on both sides of the hinge receiving portion (20).
[Feature 4]
• The case according to the feature 3, wherein
• the second coupling protrusion (45) includes a second proximal end wall portion (46) configured to be brought into contact with the first proximal end wall portion (16) from the mating surface (11M, 41M) side, and to partially face the hinge receiving portion (20) in the combined state, and
• the hinge protrusion (50) protrudes from the second proximal end wall portion (46) to pass through the hinge receiving portion (20), and includes a bent distal end portion serving as a second distal end wall portion (47) configured to be brought into contact with the first distal end wall portion (17) from a side opposite to the mating surface (11M, 41M).
• According to the case of the feature 4, the second proximal end wall portion of the second coupling protrusion is brought into contact with the first proximal end wall portion of the first coupling protrusion from the mating surface side, and the second distal end wall portion of the second coupling protrusion is brought into contact with the first distal end wall portion of the first coupling protrusion from the side opposite to the mating surface, so that the first and second case members are positioned in a vertical direction.
[Feature 5]
• The case according to the feature 4, wherein the hinge protrusion (50) is configured to abut against an opening edge of the hinge receiving portion (20) on the first distal end wall portion (17) side in the combined state.
• According to the case of the feature 5, since the mating surfaces abut against each other and the hinge protrusion abuts against the opening edge of the hinge receiving portion on the first distal end wall portion side, the first and second case members are positioned in the direction perpendicular to the mating surfaces.
[Feature 6]
• The case according to the feature 4, including a triangular rib (51) connecting the hinge protrusion (50) and the second proximal end wall portion (46).
• According to the case of the feature 6, the hinge protrusion is reinforced and prevented from breakage. In addition, if the hinge portion is not inserted, the triangular rib abuts against the second distal end wall portion, and the second case member slides down along an oblique side surface, so that a person easily becomes aware that the hinge portion is not fitted.
[Feature 7]
• The case according to the feature 4, wherein
• the second coupling protrusion (45) includes an interference wall (52) provided on a side opposite to the hinge protrusion (50) with respect to the second proximal end wall portion (46), and having an interference surface (52A) flush with a surface from which the second distal end wall portion (47) of the hinge protrusion (50) rises, and
• the interference surface (52A) is configured to abut against the first distal end wall portion (17) when the second distal end wall portion (47) is inserted into the hinge receiving portion (20) with the first and second case members (11, 41) opened by 90 degrees.
• According to the case of the feature 7, when the second distal end wall portion is inserted into the hinge receiving portion with the first and second case members opened by 90 degrees, the interference surface abuts against the first distal end wall portion. This prevents the hinge protrusion from excessively entering the hinge receiving portion that hinders the rotation.
[Feature 8]
• The case according to the feature 5, wherein
• a plurality of sets of the first and second coupling protrusions (15, 45) are provided, and
• in at least one set of the first and second coupling protrusions (15, 45), the pair of connecting wall portions (18) is configured to position the hinge protrusion (50).
• According to the case of the feature 8, since the pair of connecting wall portions positions the hinge protrusion in at least one set of the first and second coupling protrusions, the first and second case members are positioned in a rotation axis direction.
[Feature 9]
• The case according to the feature 1, wherein the first and second hinge portions (20, 50) are configured to be able to be coupled without interfering with each other when the first and second case members (11, 41) are in an open state.
• According to the case of the feature 9, since the first and second hinge portions can be coupled without interfering with each other, the first and second hinge portions are less likely to be damaged as compared with a configuration requiring elastic deformation. In addition, since a less force is required for pushing the hinge portions as compared with the configuration requiring elastic deformation, it is easy to couple the hinge portions even in a narrow space or a place where the hinge portions are difficult to visually recognize.
[Feature 10]
• The case according to the feature 9, wherein the first and second case members (11, 41) are configured to interfere with each other when approaching the combined state, to prevent a movement in a direction in which the first and second hinge portions (20, 50) are separated.
• According to the feature 10, when the first and second case members approach the combined state, the coupled state of the first and second hinge portions is easily held.
[Feature 11]
• The case according to the feature 10, wherein
• one (50) of the first and second hinge portions includes a receiving portion (45U) having a circular cross section, and a shaft passing portion (45T) allowing communication between an inside and an outside of the receiving portion (45U) in a radial direction and having a smaller width than an inner diameter of the receiving portion (45U), and
• another (20) of the first and second hinge portions includes a shaft portion (15J) having a non-circular cross section, configured to be able to pass through the shaft passing portion (45T) when the first and second case members (11, 41) are in the open state, and configured to interfere with an opening edge of the shaft passing portion (45T) in the receiving portion (45U) when the first and second case members (11, 41) approach the combined state.
[Feature 12]
• The case according to the feature 1, wherein
• the first and second case members (11, 41) include component receiving portions (11U, 41U) receiving the vehicle component (90),
• a plurality of sets of the first and second coupling protrusions (15, 45) are provided,
• and one set of the first and second coupling protrusions (15, 45) is disposed at a position at least partially shifted from the component receiving portions (11U, 41U) in a rotation axis direction.
• According to the feature 12, when one of the first and second case members is attached to the vehicle component in a state where only the other case member has been fitted to the vehicle component, the first or second hinge portion is disposed at a position shifted from the vehicle component and is easily visually recognized. Therefore, that first or second hinge portion is used as a guide and the other hinge portion is coupled thereto, so that the positions of the first and second case members can be easily aligned.
[Feature 13]
• The case according to the feature 12, wherein the vehicle component (90) includes a large diameter portion (90A, 90C) and a small diameter portion (90B, 90D).
• The vehicle component may have a shape having a uniform cylindrical surface, or may have the large diameter portion and the small diameter portion as in the feature 13.
[Feature 14]
• The case according to the feature 13, wherein another set of the first and second coupling protrusions (15, 45) is disposed at a position corresponding to a portion of the component receiving portions (11U, 41U) that receive the small diameter portion (90B, 90D).
• According to the feature 14, when one of the first and second case members is attached to the vehicle component in a state where only the other case member has been fitted to the vehicle component, a space between an outer surface of the vehicle component and the first or second coupling protrusion increases, and the first or second coupling protrusion is easily visually recognized.
[Feature 15]
• The case according to the feature 1, including:
• an engagement claw (55) disposed on one (41) of the first and second case members and extending in a relative movement direction of the first and second case members (11, 41); and
• a claw receiving portion (25) disposed on another (11) of the first and second case members and engaging with the engagement claw (55) in a state where the first and second case members (11, 41) abut against each other.
• According to the feature 15, the first and second case members are held in a mated state.
[Feature 16]
• The case according to the feature 15, wherein
• the engagement claw (55) is disengageable by being pressed from outside, and
• a protective wall (25, 54A) protruding outward beyond the engagement claw (55) is provided on an outer surface of the first or second case member (11, 41) at a position sandwiching the engagement claw (55).
• According to the feature 16, even when a nearby component or the like moves toward the engagement claw, the nearby component or the like collides with the protective wall thereby to be prevented from colliding with the engagement claw, so that disengagement of the engagement claw is prevented.
[Feature 17]
• The case according to the feature 15, wherein finger hook portions (28, 54A) that can be pinched with fingers to bring the engagement claw (55) and the claw receiving portion (25) close to each other are provided on outer surfaces of the first and second case members (11, 41).
• According to the feature 17, since the fingers can be hooked on the finger hook portions at the time of pinching the engagement claw and the claw receiving portion so as to push the engagement claw into the claw receiving portion, the fingers can be prevented from hurting.
[Feature 18]
• The case according to the feature 1, wherein the first and second case members (11, 41) include cover members (12, 42) and cushioning members (30, 60) that are disposed inside the cover members (12, 42) and that are softer than the cover members (12, 42).
• According to the feature 18, the vehicle component is protected by the cushioning members.
[Feature 19]
• The case according to the feature 18, wherein the first and second coupling protrusions (15, 45) are formed integrally with the cover members (12, 42).
• According to the feature 19, since the first and second hinge portions are disposed on the relatively hard cover members of the cover members and the cushioning members, it is possible to stabilize the coupling between the first and second hinge portions while protecting the vehicle component with the cushioning members.
[Feature 20]
• A case assembling method of attaching the case (10) according to any one of the features 1 to 19 to a compressor (90) as the vehicle component, the case assembling method including:
  in a state where only the first case member (11) of the first and second case members has been fitted to the compressor (90), attaching the compressor (90) to another vehicle component (101), and then combining the second case member (41) with the first case member (11) to fit the second case member (41) to the compressor (90).
[Feature 21]
• A method for manufacturing a component assembly (100) in which a plurality of vehicle components (90, 101) including a compressor (90) are assembled, the method including:
  in a state where only the first case member (11) of the first and second case members included in the case according to any one of the features 1 to 19 has been fitted to the compressor (90), attaching the compressor (90) to another vehicle component (101), and then combining the second case member (41) with the first case member (11) to fit the second case member (41) to the compressor (90).
• As in the features 20 and 21, in a case where the compressor is attached to another vehicle component in a state where only the first case member has been fitted thereto, and then the second case member is attached, a work space is considered to be narrow, and the effect of the above feature 1 can be more enjoyed.
• Although specific examples of the technique included in the claims are disclosed in the present specification and the drawings, the technique described in the claims is not limited to these specific examples, and includes those obtained by variously modifying or changing the specific examples, and also includes those obtained by singly extracting part from the specific examples.
DESCRIPTION OF THE REFERENCE NUMERALS

10

Case

11

First case member

12

Cover member

15

First coupling protrusion

16

First proximal end wall portion

17

First distal end wall portion

18

Connecting wall portion

20

Hinge receiving portion

25

Claw engagement portion

41

Second case member

45

Second coupling protrusion

46

Second proximal end wall portion

47

Second distal end wall portion

48

Suspended wall portion

50

Hinge protrusion

51

Triangular rib

52

Interference wall

55

Engagement claw

90

Compressor

Claims (19)

1. A case comprising:

   first and second case members configured to be fitted to a vehicle component as a noise source, from both sides of the vehicle component, and to be brought into a combined state of being combined with each other;

   mating surfaces provided in the first and second case members and configured to be brought into contact with each other in the combined state;

   a first coupling protrusion provided on the first case member and protruding beyond the mating surface toward the second case member on a lateral side of the mating surface;

   a second coupling protrusion provided on the second case member and protruding toward the first coupling protrusion; and

   first and second hinge portions provided separately in the first coupling protrusion and the second coupling protrusion, and configured to be changeable between a state of being separated from each other and a state of engaging with each other to rotatably couple the first and second case members.
2. The case according to claim 1, wherein

   the first hinge portion is a hinge receiving portion passing through the first coupling protrusion and having an opening surface inclined to open outward with respect to a plane perpendicular to the mating surface of the first case member, and

   the second hinge portion is a hinge protrusion disposed in the second coupling protrusion and configured to pass through the hinge receiving portion.
3. The case according to claim 2, wherein
   the first coupling protrusion includes:

   a first proximal end wall portion perpendicular to the mating surface of the first case member;

   a first distal end wall portion parallel to the first proximal end wall portion, separated laterally from the first proximal end wall portion toward the second case member, and having the hinge receiving portion between the first proximal end wall portion and the first distal end wall portion; and

   a pair of connecting wall portions connecting the first proximal end wall portion and the first distal end wall portion on both sides of the hinge receiving portion.
4. The case according to claim 3, wherein

   the second coupling protrusion includes a second proximal end wall portion configured to be brought into contact with the first proximal end wall portion from the mating surface side, and to partially face the hinge receiving portion in the combined state, and

   the hinge protrusion protrudes from the second proximal end wall portion to pass through the hinge receiving portion, and includes a bent distal end portion serving as a second distal end wall portion configured to be brought into contact with the first distal end wall portion from a side opposite to the mating surface.
5. The case according to claim 4, wherein the hinge protrusion is configured to abut against an opening edge of the hinge receiving portion on the first distal end wall portion side in the combined state.
6. The case according to claim 4, comprising a triangular rib connecting the hinge protrusion and the second proximal end wall portion.
7. The case according to claim 4, wherein

   the second coupling protrusion includes an interference wall provided on a side opposite to the hinge protrusion with respect to the second proximal end wall portion, and having an interference surface flush with a surface from which the second distal end wall portion of the hinge protrusion rises, and

   the interference surface is configured to abut against the first distal end wall portion when the second distal end wall portion is inserted into the hinge receiving portion with the first and second case members opened by 90 degrees.
8. The case according to claim 5, wherein

   a plurality of sets of the first and second coupling protrusions are provided, and

   in at least one set of the first and second coupling protrusions, the pair of connecting wall portions is configured to position the hinge protrusion.
9. The case according to claim 1, wherein the first and second hinge portions are configured to be able to be coupled without interfering with each other when the first and second case members are in an open state.
10. The case according to claim 9, wherein the first and second case members are configured to interfere with each other when approaching the combined state, to prevent a movement in a direction in which the first and second hinge portions are separated.
11. The case according to claim 10, wherein

    one of the first and second hinge portions includes a receiving portion having a circular cross section, and a shaft passing portion allowing communication between an inside and an outside of the receiving portion in a radial direction and having a smaller width than an inner diameter of the receiving portion, and

    another of the first and second hinge portions includes a shaft portion having a non-circular cross section, configured to be able to pass through the shaft passing portion when the first and second case members are in the open state, and configured to interfere with an opening edge of the shaft passing portion in the receiving portion when the first and second case members approach the combined state.
12. The case according to claim 1, wherein

    the first and second case members include component receiving portions receiving the vehicle component,

    a plurality of sets of the first and second coupling protrusions are provided, and

    one set of the first and second coupling protrusions is disposed at a position at least partially shifted from the component receiving portions in a rotation axis direction.
13. The case according to claim 12, wherein the vehicle component includes a large diameter portion and a small diameter portion.
14. The case according to claim 13, wherein another set of the first and second coupling protrusions is disposed at a position corresponding to a portion of the component receiving portions that receive the small diameter portion.
15. The case according to claim 1, comprising:

    an engagement claw disposed on one of the first and second case members and extending in a relative movement direction of the first and second case members; and

    a claw receiving portion disposed on another of the first and second case members and engaging with the engagement claw in a state where the first and second case members abut against each other.
16. The case according to claim 15, wherein

    the engagement claw is disengageable by being pressed from outside, and

    a protective wall protruding outward beyond the engagement claw is provided on an outer surface of the first or second case member at a position sandwiching the engagement claw.
17. The case according to claim 15, wherein finger hook portions that can be pinched with fingers to bring the engagement claw and the claw receiving portion close to each other are provided on outer surfaces of the first and second case members.
18. A case assembling method of attaching the case according to any one of claims 1 to 17 to a compressor as the vehicle component, the case assembling method comprising:
    in a state where only the first case member of the first and second case members has been fitted to the compressor, attaching the compressor to another vehicle component, and then combining the second case member with the first case member to fit the second case member to the compressor.
19. A method for manufacturing a component assembly in which a plurality of vehicle components including a compressor are assembled, the method comprising:
    in a state where only the first case member of the first and second case members included in the case according to any one of claims 1 to 17 has been fitted to the compressor, attaching the compressor to another vehicle component, and then combining the second case member with the first case member to fit the second case member to the compressor.