Soundproof cover

Abstract

To facilitate work for locking a locking part to a locked part.SOLUTION: A soundproof cover 10 includes a regulation protrusion 50 protruding to the inner side from the inner face of a cover body 13. The regulation protrusion 50 regulates displacement of a portion in which a locked part 46 in the cover body 13 is provided to the inner side of the cover body 13 by bringing a locking part 41 into contact with a compressor 11 when the locking part is locked to the locked part 46. Thus, the portion in which the locked part 46 in the cover body 13 is provided is prevented from being displaced further to the inner side of the cover body 13 by bringing the regulation protrusion 50 into contact with the compressor 11. Since the portion in which the locked part 46 in the cover body 13 is provided is prevented from being displaced to the inner side of the cover body 13, the locking part 41 is easily locked to the locked part 46.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a soundproof cover.

Background Art

[0002] For example, as in Patent Document 1, the soundproof cover includes a cover body and a sound absorber. The cover body is configured to be openable and closable. The cover body covers the attachment target in the closed state. The sound absorber is disposed inside the cover body. The sound absorber is configured to be elastically deformable. The soundproof cover includes a locking portion and a locked portion. The locking portion is provided on the cover body. The locked portion is provided on the cover body. The locking portion is locked to the locked portion. Thus, the cover body is held in the closed state by the locking portion being locked to the locked portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In such a soundproof cover, when the locking portion is locked to the locked portion, a force may act from the locking portion toward the inside of the cover body on the locked portion. Then, the sound absorber may be crushed or the portion of the cover body where the locked portion is provided may be displaced toward the inside of the cover body. If the portion of the cover body where the locked portion is provided is displaced toward the inside of the cover body, it may be difficult to lock the locking portion to the locked portion.

Means for Solving the Problems

[0005] A soundproof cover that solves the above problems comprises a cover body configured to be openable and closable and covering an object to be attached when closed, a sound-absorbing body disposed inside the cover body and configured to be elastically deformable, a locking portion provided on the cover body, and a locked portion provided on the cover body to which the locking portion is locked, wherein the cover body is held in a closed state when the locking portion is locked to the locked portion, and is provided with a restricting projection that protrudes inward from the inner surface of the cover body and, when the locking portion is locked to the locked portion it comes into contact with the object to be attached, restricts the portion of the cover body on which the locked portion is provided from being displaced inward from the cover body.

[0006] According to this design, the restricting projection contacts the object to be attached, preventing the portion of the cover body where the locking part is provided from displacing further inward. Therefore, it is possible to suppress the inward displacement of the portion of the cover body where the locking part is provided, making it easier to lock the locking part to the locking part. As a result, the process of locking the locking part to the locking part can be made easier.

[0007] In the above-described soundproof cover, the sound-absorbing material is in close contact with the inner surface of the cover body, and the length of the regulating projection protruding from the inner surface of the cover body is preferably at least half the thickness of the original shape of the sound-absorbing material before elastic deformation.

[0008] Thus, a configuration in which the length of the restricting projection protruding from the inner surface of the cover body is more than half of the thickness of the sound-absorbing material in its original shape before elastic deformation is suitable for suppressing the displacement of the part of the cover body where the locking portion is provided inward.

[0009] In the above-described soundproof cover, the restrictive projection is preferably located on the same plane as the surface of the sound-absorbing material that is on the mounting side, extending from the inner surface of the cover body to the surface of the sound-absorbing material. According to this design, the restricting projection extends from the inner surface of the cover body to the same plane as the surface of the sound absorber that is on the mounting target side, making it easier for the restricting projection to come into contact with the mounting target. Therefore, it is easier to suppress the displacement of the part of the cover body where the locking portion is provided inward.

[0010] In the above-described soundproof cover, the restrictive projection is preferably located closer to the inner surface of the cover body than the surface of the sound-absorbing material that is located on the side to which it is attached.

[0011] This method prevents the restrictive protrusion from unintentionally coming into contact with the mounting object, while also preventing the part of the cover body where the locking portion is provided from being displaced inward.

[0012] In the above-described soundproof cover, the restricting projection is preferably located on the inner surface of the cover body, and protrudes from a position that overlaps with the locking portion in the thickness direction of the cover body. Thus, a configuration in which the restricting projection protrudes from the inner surface of the cover body from a position that overlaps with the locking portion in the thickness direction of the cover body is suitable for suppressing displacement of the portion of the cover body where the locking portion is provided inward.

[0013] In the above-described soundproof cover, the restrictive protrusions are preferably separated from the mounting object before the sound-absorbing material undergoes elastic deformation. According to this, even if a regulating projection is made to protrude from the inner surface of the cover body, the regulating projection is separated from the mounting object, so it is possible to effectively suppress the contact noise that would occur when the mounting object is driven due to contact between the regulating projection and the mounting object. [Effects of the Invention]

[0014] According to this invention, the process of locking the locking part to the part to be locked can be made easier. [Brief explanation of the drawing]

[0015] [Figure 1] Figure 1 is a perspective view showing the cover body in the open state in the embodiment. [Figure 2] Figure 2 is a perspective view showing the cover body in the closed state. [Figure 3] Figure 3 is a perspective view showing the relationship between the locking portion and the locked portion. [Figure 4] Figure 4 is a cross-sectional view showing the relationship between the soundproof cover and the compressor. [Figure 5] Figure 5 is a cross-sectional view taken along line 5-5 in Figure 4. [Figure 6] Figure 6 is a cross-sectional view showing the middle of locking the locking portion to the locked portion. [Figure 7] Figure 7 is a cross-sectional view showing the relationship between the soundproof cover and the compressor in the modified example.

Mode for Carrying Out the Invention

[0016] Hereinafter, an embodiment in which the soundproof cover is embodied will be described according to FIGS. 1 to 6. The soundproof cover of this embodiment is attached to a compressor having a cylindrical housing. Therefore, the attachment object to which the soundproof cover of this embodiment is attached is a compressor.

[0017] <Overall Configuration of Soundproof Cover> As shown in FIGS. 1 and 2, the soundproof cover 10 is configured to be able to cover the entire housing 12 of the compressor 11. The soundproof cover 10 includes a cover body 13 and a sound absorber 14.

[0018] <Cover Body> The cover body 13 is configured to be openable and closable. As the material of the cover body 13, for example, synthetic resins such as polypropylene, polyamide, ABS resin, and olefin-based elastomer are adopted. The cover body 13 is formed of a material having excellent sound insulation properties. The cover body 13 has flexibility.

[0019] The cover body 13 includes a first cover component 15, a second cover component 16, and a hinge 17. The first cover component 15 is semi-cylindrical. The first cover component 15 has a pair of semi-disc-shaped first end walls 18 and a semi-cylindrical first circumferential wall 19. The first circumferential wall 19 connects the pair of first end walls 18. The first accommodating recess 20 is partitioned by the first circumferential wall 19 and the pair of first end walls 18. The edges of the first circumferential wall 19 and the edges of each first end wall 18 form the first opening edge 21 of the first cover component 15. The first opening edge 21 of the first cover component 15 forms the opening of the first accommodating recess 20. The first opening edge 21 of the first cover component 15 is the cover edge that becomes the opening edge of the cover body 13 when the cover body 13 is open. Therefore, the cover body 13 has a first opening edge 21 which is the cover edge.

[0020] When the cover body 13 is closed, the first receiving recess 20 accommodates a portion of the housing 12 of the compressor 11. The first cover structure 15 is positioned relative to the housing 12 of the compressor 11 such that the first peripheral wall 19 covers a portion of the peripheral wall 12a of the housing 12 of the compressor 11, and each first end wall 18 covers a portion of each end wall 12b of the housing 12. The direction in which the first peripheral wall 19 of the first cover structure 15 extends is the circumferential direction of the housing 12 of the compressor 11.

[0021] The second cover structure 16 is semi-cylindrical. The second cover structure 16 has a pair of semi-disc-shaped second end walls 22 and a semi-cylindrical second circumferential wall 23. The second circumferential wall 23 connects the pair of second end walls 22. The second accommodating recess 24 is partitioned by the second circumferential wall 23 and the pair of second end walls 22. The edges of the second circumferential wall 23 and the edges of each second end wall 22 form the second opening edge 25 of the second cover structure 16. The second opening edge 25 of the second cover structure 16 forms the opening of the second accommodating recess 24. The second opening edge 25 of the second cover structure 16 is the cover edge that becomes the opening edge of the cover body 13 when the cover body 13 is open. Therefore, the cover body 13 has the second opening edge 25, which is the cover edge.

[0022] When the cover body 13 is closed, the second receiving recess 24 accommodates the remaining portion of the compressor 11 housing 12 that is not accommodated by the first receiving recess 20. The second cover component 16 is positioned relative to the compressor 11 housing 12 such that the second circumferential wall 23 covers the remaining portion of the circumferential wall 12a of the compressor 11 housing 12 that is not covered by the first circumferential wall 19 of the first cover component 15. Therefore, the direction in which the second circumferential wall 23 of the second cover component 16 extends is the circumferential direction of the compressor 11 housing 12. Furthermore, the second cover component 16 is positioned relative to the compressor 11 housing 12 such that each second end wall 22 covers the remaining portion of each end wall 12b of the housing 12 that is not covered by each first end wall 18 of the first cover component 15.

[0023] The hinge 17 connects the first cover component 15 and the second cover component 16. The hinge 17 also connects the edge of the first peripheral wall 19 and the edge of the second peripheral wall 23. The hinge 17 is an integral hinge formed integrally with the first peripheral wall 19 of the first cover component 15 and the second peripheral wall 23 of the second cover component 16. Therefore, the material of the hinge 17 is the same as the material of the cover body 13.

[0024] The hinge 17 is configured to allow the first cover component 15 and the second cover component 16 to rotate around the hinge 17 as the pivot point, so that the first opening edge 21 of the first cover component 15 and the second opening edge 25 of the second cover component 16 move toward and away from each other. The cover body 13 is closed when the first opening edge 21 of the first cover component 15 and the second opening edge 25 of the second cover component 16 come into contact. In the closed state, the cover body 13 covers the compressor 11.

[0025] <Sound-absorbing material> The sound-absorbing element 14 is positioned inside the cover body 13. Therefore, the sound-absorbing element 14 is a component positioned inside the cover body 13. The sound-absorbing element 14 is positioned between the cover body 13 and the housing 12 of the compressor 11. The sound-absorbing element 14 is configured to cover the entire housing 12 of the compressor 11. As for the material of the sound-absorbing element 14, for example, urethane material or nonwoven fabric is used. The sound-absorbing element 14 is formed from a material with excellent sound absorption properties. The sound-absorbing element 14 is configured to be elastically deformable.

[0026] The sound-absorbing body 14 comprises a first sound-absorbing component 26 and a second sound-absorbing component 27. The first sound-absorbing component 26 is semi-cylindrical. The first sound-absorbing component 26 has a pair of semi-disc-shaped first end walls 28 and a semi-cylindrical first circumferential wall 29. The first circumferential wall 29 connects the pair of first end walls 28. The first sound-absorbing component 26 is positioned inside the first cover component 15.

[0027] Each first end wall 28 of the first sound-absorbing structure 26 extends along the inner surface of each first end wall 18 of the first cover structure 15. Each first end wall 28 of the first sound-absorbing structure 26 covers the entire inner surface of each first end wall 18 of the first cover structure 15. Each first end wall 28 of the first sound-absorbing structure 26 is in close contact with the inner surface of each first end wall 18 of the first cover structure 15. The first circumferential wall 29 of the first sound-absorbing structure 26 extends along the inner surface of the first circumferential wall 19 of the first cover structure 15. The first circumferential wall 29 of the first sound-absorbing structure 26 covers the entire inner surface of the first circumferential wall 19 of the first cover structure 15. The first circumferential wall 29 of the first sound-absorbing structure 26 is in close contact with the inner surface of the first circumferential wall 19 of the first cover structure 15. The first sound-absorbing component 26 is formed so that its thickness in its original shape before elastic deformation is greater than the thickness of the first cover component 15.

[0028] The edges of the first peripheral wall 29 and the edges of each first end wall 28 form the first opening edge 30 of the first sound-absorbing structure 26. The first opening edge 30 of the first sound-absorbing structure 26 is located on the same plane as the first opening edge 21 of the first cover structure 15.

[0029] The first sound-absorbing structure 26 has a plurality of first ribs 31. The plurality of first ribs 31 protrude from the inner surface of the first circumferential wall 29 of the first sound-absorbing structure 26. Each first rib 31 supports the first sound-absorbing structure 26 against the housing 12 of the compressor 11 by contacting the outer circumferential surface of the housing 12 of the compressor 11. The inner surface of the first circumferential wall 29 and the inner surface of each first end wall 28 of the first sound-absorbing structure 26 are separated from the housing 12 of the compressor 11 when the first sound-absorbing structure 26 is in its original shape before elastic deformation.

[0030] The second sound-absorbing structure 27 is semi-cylindrical. The second sound-absorbing structure 27 has a pair of semi-disc-shaped second end walls 32 and a semi-cylindrical second circumferential wall 33. The second circumferential wall 33 connects the pair of second end walls 32. The second sound-absorbing structure 27 is positioned inside the second cover structure 16.

[0031] Each second end wall 32 of the second sound-absorbing component 27 extends along the inner surface of each second end wall 22 of the second cover component 16. Each second end wall 32 of the second sound-absorbing component 27 covers the entire inner surface of each second end wall 22 of the second cover component 16. Each second end wall 32 of the second sound-absorbing component 27 is in close contact with the inner surface of each second end wall 22 of the second cover component 16. The second circumferential wall 33 of the second sound-absorbing component 27 extends along the inner surface of the second circumferential wall 23 of the second cover component 16. The second circumferential wall 33 of the second sound-absorbing component 27 covers the entire inner surface of the second circumferential wall 23 of the second cover component 16. The second circumferential wall 33 of the second sound-absorbing component 27 is in close contact with the inner surface of the second circumferential wall 23 of the second cover component 16. Therefore, the sound absorber 14 is in close contact with the inner surface of the cover body 13. The second sound-absorbing component 27 is formed so that its thickness in its original shape before elastic deformation is greater than the thickness of the second cover component 16.

[0032] The edges of the second peripheral wall 33 and the edges of each second end wall 32 form the second opening edge 34 of the second sound-absorbing structure 27. The second opening edge 34 of the second sound-absorbing structure 27 is located on the same plane as the second opening edge 25 of the second cover structure 16. When the cover body 13 is closed, the first opening edge 30 of the first sound-absorbing structure 26 and the second opening edge 34 of the second sound-absorbing structure 27 are abutting against each other.

[0033] The second sound-absorbing component 27 has multiple second ribs 35. The multiple second ribs 35 protrude from the inner surface of the second peripheral wall 33 of the second sound-absorbing component 27. Each second rib 35 contacts the outer surface of the housing 12 of the compressor 11, thereby supporting the second sound-absorbing component 27 against the housing 12 of the compressor 11. The inner surface of the second peripheral wall 33 and the inner surface of each second end wall 32 of the second sound-absorbing component 27 are separated from the housing 12 of the compressor 11 when the second sound-absorbing component 27 is in its original shape before elastic deformation. Thus, when the sound-absorbing component 14 is in its original shape before elastic deformation, the parts of the sound-absorbing component 14, excluding each first rib 31 and each second rib 35, are separated from the housing 12 of the compressor 11.

[0034] <Locking part> The soundproof cover 10 is provided with a plurality of locking parts 41. Each locking part 41 is provided on the first cover structure 15. Therefore, each locking part 41 is provided on the cover body 13. Each locking part 41 is provided on a portion of the first circumferential wall 19 of the first cover structure 15 that is different from the edge to which the hinge 17 is connected, and on a portion corresponding to one edge of a pair of first end walls 18. Each locking part 41 extends from the outer surface of the first cover structure 15 beyond the first opening edge 21 of the first cover structure 15 by a predetermined length. Therefore, each locking part 41 extends from the cover body 13. Each locking part 41 is integrally formed with the first cover structure 15. Therefore, the material of each locking part 41 is the same as the material of the cover body 13.

[0035] As shown in Figure 3, the locking portion 41 is a thin, flat plate. The locking portion 41 has a connecting piece 42, a pair of connecting pieces 43, and a handle piece 44. As shown in Figures 3 and 4, the connecting piece 42 is connected to the outer surface of the first cover structure 15. The connecting piece 42 is an elongated plate. The longitudinal direction of the connecting piece 42 coincides with the extending direction of the first opening edge 21 of the first cover structure 15. The surface of the connecting piece 42 on the first opening edge 21 side of the first cover structure 15 is located on the same plane as the first opening edge 21.

[0036] The pair of connecting pieces 43 extend a predetermined length from both longitudinal ends of the connecting piece 42. The pair of connecting pieces 43 extend parallel to each other. The handle piece 44 connects the ends of each connecting piece 43 opposite to the connecting piece 42. The handle piece 44 is tongue-shaped. The handle piece 44 forms the leading edge of the locking portion 41 in the direction extending from the outer surface of the first cover structure 15. Therefore, the end of the handle piece 44 opposite to each connecting piece 43 is the leading edge of the locking portion 41 in the direction extending. The connecting piece 42, the pair of connecting pieces 43, and the handle piece 44 define the hook hole 45. Therefore, the locking portion 41 defines the hook hole 45. The hook hole 45 is square-shaped.

[0037] <Locked part> As shown in Figures 1 and 2, the soundproof cover 10 is provided with a plurality of locking portions 46. Each locking portion 46 is provided on the second cover component 16. Therefore, each locking portion 46 is provided on the cover body 13. Each locking portion 46 is provided on a portion of the second peripheral wall 23 of the second cover component 16 that is different from the edge to which the hinge 17 is connected, and on the portion corresponding to one edge of the pair of second end walls 22. When the cover body 13 is closed, each locking portion 46 protrudes from the position corresponding to each locking portion 41 on the outer surface of the cover body 13. Each locking portion 46 is integrally formed with the second cover component 16. Therefore, the material of each locking portion 46 is the same as the material of the cover body 13.

[0038] As shown in Figures 3 and 4, the locking portion 46 has a projection body 47 and a locking projection 48. The projection body 47 protrudes from the outer surface of the second cover structure 16. Therefore, the locking portion 46 is a projection that protrudes from the outer surface of the cover body 13. The projection body 47 is rectangular prism-shaped. The projection body 47 protrudes from the portion of the outer surface of the second cover structure 16 that is continuous with the second opening edge 25. The locking projection 48 protrudes from the tip of the projection body 47 toward the opposite side of the second opening edge 25 of the second cover structure 16. The locking portion 46 has a hook-shaped projection at its tip.

[0039] The locking portion 41 is hooked onto the locking portion 46 when the locking portion 46 is inserted into the hooking hole 45. In this way, the locking portion 41 is locked to the locking portion 46. Therefore, the locking portion 41 is locked to the locking portion 46.

[0040] As shown in Figure 2, the cover body 13 is held in a closed state when each locking portion 41 is locked to each locked portion 46. As shown in Figures 3 and 4, the locking projection 48 protrudes from the tip of the projection body 47 toward the tip in the extending direction of the locking portion 41 when the locking portion 41 is locked to the locked portion 46.

[0041] <Restrictive protrusion> As shown in Figures 4 and 5, the soundproof cover 10 is equipped with regulating protrusions 50. The regulating protrusions 50 project inward from the inner surface of the second cover component 16. Therefore, the regulating protrusions 50 project from the inner surface of the cover body 13. On the inner surface of the cover body 13, the regulating protrusions 50 project from positions that overlap with the locked portion 46 in the thickness direction of the cover body 13. Therefore, the soundproof cover 10 is equipped with the same number of regulating protrusions 50 as the number of locked portions 46. Each regulating protrusion 50 projects from a portion on the inner surface of the second cover component 16 that is continuous with the second opening edge 25. The regulating protrusions 50 are, for example, rectangular prism-shaped. The regulating protrusions 50 are integrally formed with the cover body 13.

[0042] The sound-absorbing body 14 has an insertion portion 51. The insertion portion 51 is provided on the second sound-absorbing structure 27. The insertion portion 51 is formed on the second opening edge 34 of the second sound-absorbing structure 27. The insertion portion 51 is a recess that is recessed from the second opening edge 34. The insertion portion 51 penetrates the second sound-absorbing structure 27 in the thickness direction of the second sound-absorbing structure 27. The insertion portion 51 is formed on the second opening edge 34 of the second sound-absorbing structure 27 in the portion that overlaps with the locked portion 46 in the thickness direction of the cover body 13. Therefore, the soundproof cover 10 has the same number of insertion portions 51 as there are locked portions 46. Furthermore, the regulating projection 50 can be inserted into the inside of the insertion portion 51. Therefore, each regulating projection 50 is inserted into the inside of each insertion portion 51.

[0043] The restrictive projection 50 protrudes from the inner surface of the cover body 13 to the same plane as the surface 14a of the sound-absorbing body 14 that is located on the side of the compressor 11 housing 12. Therefore, the length L1 of the restrictive projection 50 protruding from the inner surface of the cover body 13 is more than half of the thickness T1 of the sound-absorbing body 14 in its original shape before elastic deformation. The restrictive projection 50 is separated from the housing 12 of the compressor 11 in the state before the sound-absorbing body 14 undergoes elastic deformation.

[0044] [Effect of the Embodiment] Next, the operation of the embodiment will be described. The sound generated by the operation of the compressor 11 is emitted from the housing 12. At this time, the sound emitted from the housing 12 is absorbed by the sound-absorbing material 14 of the soundproof cover 10. Furthermore, the cover body 13 shields the sound that has passed through the sound-absorbing material 14. As a result, the sound emitted from the housing 12 is suppressed from being emitted to the outside beyond the soundproof cover 10.

[0045] As shown in Figure 6, for example, when locking the locking portion 41 to the locked portion 46, the locking portion 46 is inserted into the hook hole 45 while pulling the handle piece 44 of the locking portion 41. Then, the handle piece 44 of the locking portion 41 is positioned between the locking projection 48 of the locked portion 46 and the outer surface of the second cover structure 16. In this way, the locking portion 41 is locked to the locked portion 46.

[0046] In such a soundproof cover 10, when the locking portion 41 is locked to the locked portion 46, a force may be applied from the locking portion 41 toward the inside of the cover body 13 toward the locked portion 46. This may cause the second rib 35 of the sound-absorbing material 14 to be crushed, causing the portion of the cover body 13 where the locked portion 46 is located to be displaced toward the inside of the cover body 13. At this time, the restricting projection 50 comes into contact with the housing 12 of the compressor 11. This prevents the portion of the cover body 13 where the locked portion 46 is located from being displaced further toward the inside of the cover body 13. Therefore, the restricting projection 50, by coming into contact with the housing 12 of the compressor 11 when the locking portion 41 is locked to the locked portion 46, prevents the portion of the cover body 13 where the locked portion 46 is located from being displaced toward the inside of the cover body 13. Therefore, the portion of the cover body 13 where the locking portion 46 is provided is prevented from being displaced inward, making it easier to lock the locking portion 41 to the locking portion 46.

[0047] [Effects of the Embodiment] The above embodiment can be achieved to obtain the following effects. (1) The soundproof cover 10 is provided with a restricting projection 50 that protrudes inward from the inner surface of the cover body 13. The restricting projection 50 contacts the compressor 11 when the locking portion 41 is locked onto the locked portion 46, thereby restricting the portion of the cover body 13 on which the locked portion 46 is provided from being displaced inward. As a result, the restricting projection 50 contacts the compressor 11, preventing the portion of the cover body 13 on which the locked portion 46 is provided from being displaced further inward. Therefore, it is possible to suppress the portion of the cover body 13 on which the locked portion 46 is provided from being displaced inward, making it easier to lock the locking portion 41 onto the locked portion 46. As a result, the work of locking the locking portion 41 onto the locked portion 46 can be made easier.

[0048] (2) The length L1 of the regulating projection 50 protruding from the inner surface of the cover body 13 is more than half of the thickness T1 of the original shape of the sound-absorbing material 14 before elastic deformation. Such a configuration is suitable for preventing the portion of the cover body 13 where the locking portion 46 is provided from being displaced inward.

[0049] (3) Since the restricting projection 50 protrudes from the inner surface of the cover body 13 to the same plane as the surface 14a of the sound absorber 14 that is located on the compressor 11 side, the restricting projection 50 is likely to come into contact with the compressor 11. Therefore, it is easier to prevent the portion of the cover body 13 on which the locking portion 46 is provided from being displaced inward.

[0050] (4) The restricting projection 50 protrudes from the inner surface of the cover body 13 from a position that overlaps with the locking portion 46 in the thickness direction of the cover body 13. This configuration is suitable for preventing the portion of the cover body 13 on which the locking portion 46 is provided from being displaced inward.

[0051] (5) The restricting projection 50 is away from the compressor 11 in the state before the sound-absorbing body 14 undergoes elastic deformation. This effectively prevents the restricting projection 50 from coming into contact with the compressor 11 and generating contact noise when the compressor 11 is driven, because the restricting projection 50 is away from the compressor 11.

[0052] (6) Since each restricting projection 50 is inserted inside each insertion portion 51, the movement of the second sound-absorbing component 27 relative to the second cover component 16 is restricted by each restricting projection 50. Therefore, it is possible to prevent the second sound-absorbing component 27 from shifting relative to the second cover component 16.

[0053] [Example of changes] The above embodiment can be implemented with the following modifications. The above embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0054] ○ As shown in Figure 7, the restricting projection 50 may protrude from the inner surface of the cover body 13 to a position closer to the inner surface of the cover body 13 than the surface 14a of the sound-absorbing material 14 that is located on the compressor 11 side. The protrusion length L1 of the restricting projection 50 from the inner surface of the cover body 13 in the embodiment shown in Figure 7 is more than half of the thickness T1 of the original shape of the sound-absorbing material 14 before elastic deformation. This prevents the restricting projection 50 from unintentionally coming into contact with the compressor 11, while also preventing the portion of the cover body 13 on which the locking portion 46 is provided from being displaced inward.

[0055] ○ In this embodiment, the length L1 of the regulating projection 50 protruding from the inner surface of the cover body 13 may be half of the thickness T1 of the sound-absorbing body 14 in its original shape before elastic deformation. ○ In this embodiment, the length L1 of the regulating projection 50 protruding from the inner surface of the cover body 13 may be half or less of the thickness T1 of the original shape of the sound-absorbing material 14 before elastic deformation.

[0056] ○ In this embodiment, the restricting projection 50 may protrude from the inner surface of the cover body 13 from a position offset from the position where it overlaps with the locking portion 46 in the thickness direction of the cover body 13.

[0057] ○ In this embodiment, the regulating projection 50 may be in contact with the compressor 11 before the sound-absorbing body 14 undergoes elastic deformation. ○ In this embodiment, the restricting projection 50 does not have to be integrally formed with the cover body 13, and may be a separate component from the cover body 13. In short, the restricting projection 50 only needs to protrude inward from the inner surface of the cover body 13. Furthermore, the restricting projection 50 should be configured to restrict the displacement of the portion of the cover body 13 where the locking portion 46 is provided from moving inward when the locking portion 41 is locked to the locked portion 46 by contacting the compressor 11.

[0058] ○ In the embodiment, the restrictive projection 50 was, for example, a rectangular prism shape, but the shape of the restrictive projection 50 is not particularly limited. ○ In this embodiment, for example, the locking portion 41 may be a projection, and the locked portion 46 may define the hook hole 45. In short, the relationship between the protrusions and recesses of the locking portion 41 and the locked portion 46 is not particularly limited.

[0059] ○ In this embodiment, the sound-absorbing body 14 may be in close contact with the housing 12 of the compressor 11 when it is in its original shape before elastic deformation. ○ In this embodiment, the number of locking portions 41 may be changed as appropriate. In this case, the number of locked portions 46 will be changed as appropriate according to the number of locking portions 41. In short, the locked portions 46 only need to be provided at positions on the outer surface of the cover body 13 corresponding to the locking portions 41 when the cover body 13 is closed.

[0060] ○ In this embodiment, the cover body 13 may not have a hinge 17. The soundproof cover 10 may also have a structure that combines, for example, a first cover component 15 and a second cover component 16, which are in the shape of a half-split cylinder. Alternatively, the soundproof cover 10 may have a structure that covers the housing 12 of the compressor 11 by wrapping the cover body 13, which is formed from a single strip-shaped thin plate, around the housing 12. In short, the soundproof cover 10 should be configured such that the cover body 13 can be opened and closed, and the cover body is held in a closed state by the locking portion 41 being locked to the locked portion 46.

[0061] ○ In this embodiment, the soundproof cover 10 was attached to a compressor 11 equipped with a cylindrical housing 12, but the object to which the soundproof cover 10 is attached is not particularly limited.

[0062] The above embodiment includes the configuration described in the following appendix. <Note 1> A cover body that is configured to be openable and closable and covers the object to be mounted when closed, A sound-absorbing body is disposed inside the cover body and configured to be elastically deformable, A locking portion provided on the cover body, The cover body is provided with a locking portion into which the locking portion is locked, A soundproof cover in which the cover body is held in a closed state by the locking portion being locked to the locked portion, A soundproof cover characterized by having a restricting projection that protrudes inward from the inner surface of the cover body and, when the locking portion is locked to the object to be attached, comes into contact with the object to be attached, thereby restricting the portion of the cover body on which the locking portion is provided from being displaced inward from the cover body.

[0063] <Note 2> The sound-absorbing material is in close contact with the inner surface of the cover body. The soundproof cover according to <Note 1>, characterized in that the length of the restricting projection protruding from the inner surface of the cover body is more than half of the thickness of the sound-absorbing material in its original shape before elastic deformation.

[0064] <Note 3> The soundproof cover according to Appendix 2, characterized in that the regulating projection protrudes from the inner surface of the cover body to the same surface as the surface of the sound absorber located on the mounting side.

[0065] <Note 4> The soundproof cover according to Appendix 2, characterized in that the restrictive projection protrudes from the inner surface of the cover body to a position closer to the inner surface of the cover body than the surface of the sound absorber located on the side to which it is to be attached.

[0066] <Note 5> The soundproof cover according to any one of the appendices 1 to 4, characterized in that the restricting projection protrudes from the inner surface of the cover body from a position that overlaps with the locking portion in the thickness direction of the cover body.

[0067] <Note 6> The soundproof cover according to any one of <Appendix 1> to <Appendix 5>, characterized in that the regulating projection is separated from the mounting target in the state before the sound-absorbing material undergoes elastic deformation. [Explanation of Symbols]

[0068] 10...Soundproof cover, 11...Compressor to be attached, 13...Cover body, 14...Sound absorber, 14a...Surface, 41...Locking part, 46...Locking part, 50...Restrictive projection.

Claims

1. A cover body that is configured to be openable and closable and covers the object to be mounted when closed, A sound-absorbing body is disposed inside the cover body and configured to be elastically deformable, A locking portion provided on the cover body, The cover body is provided with a locking portion into which the locking portion is locked, A soundproof cover in which the cover body is held in a closed state by the locking portion being locked to the locked portion, A soundproof cover characterized by having a restricting projection that protrudes inward from the inner surface of the cover body and, when the locking portion is locked to the object to be attached, comes into contact with the object to be attached, thereby restricting the portion of the cover body on which the locking portion is provided from being displaced inward from the cover body.

2. The sound-absorbing material is in close contact with the inner surface of the cover body. The soundproof cover according to claim 1, characterized in that the length of the restricting projection protruding from the inner surface of the cover body is more than half of the thickness of the sound-absorbing material in its original shape before elastic deformation.

3. The soundproof cover according to claim 2, characterized in that the restrictive projection protrudes from the inner surface of the cover body to the same surface as the surface of the sound absorber located on the mounting target side.

4. The soundproof cover according to claim 2, characterized in that the restrictive projection protrudes from the inner surface of the cover body to a position closer to the inner surface of the cover body than the surface of the sound absorber located on the side to which it is to be attached.

5. The soundproof cover according to any one of claims 1 to 4, characterized in that the restricting projection protrudes from the inner surface of the cover body from a position that overlaps with the locking portion in the thickness direction of the cover body.

6. The soundproof cover according to claim 1, characterized in that the restrictive projection is separated from the mounting target in the state before the sound-absorbing material undergoes elastic deformation.

Images