Cover

Abstract

To provide a cover with high reliability, which has a simple structure and can suitably maintain a coating state of an object even when a fastening member is not provided to the object.SOLUTION: A cover 1 can cover an object by engaging first engaging parts 20A, 20B with second engaging parts 30A, 30B with each other when a lower edge 7 of a first cover body 2 and an upper edge 11 of a second cover body 3 are abutted against each other. The first cover body 2 comprises: a pair of first slits 40, 40 formed with the first engaging portion 20B sandwiched therebetween, and extending from the lower edge 7 as a starting end in a direction intersecting the lower edge 7; and a hole 9 provided on the terminal end side of the first slits 40, 40. The object can be partially exposed by engaging the first engaging part 20B with the hole 9 when an opening / closing area 42 having the first engaging part 20B and sandwiched between the pair of first slits 40, 40 is folded back along the pair of first slits 40, 40 toward terminal ends 41, 41 of the first slits 40, 40.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a cover for covering an object. [Background technology]

[0002] A cover that encases an object is provided not only to protect the object, but also to block sound generated from the object to the outside and to suppress vibrations generated from the object. For example, Japanese Patent Publication No. 53-74401 discloses a device for covering noise sources such as industrial machinery to prevent noise. This noise prevention device uses a covering material made of a waterproof or fireproof sheet with a sound-absorbing material attached to the backside. This covering material is fixed to required locations on the object using Velcro tape (hook-and-loop fasteners) to prevent sound leakage to the outside. In particular, this noise prevention device discloses an example in which the covering material has slits to allow partial opening and closing, and the open / closed portion is normally secured with hook-and-loop fasteners. In this example, the open / closed portion can be opened when necessary to expose part of the object. Therefore, maintenance work and monitoring of instruments can be performed while the covering material is secured in place. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 53-74401 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above example, depending on the exposed location and the shape of the opening / closing part, even if the opening / closing part is opened, it may return to its original closed state when the hand is released. In this case, the worker needs to work with only one hand while holding the opening / closing part with the other hand to prevent it from returning, which makes it difficult to work.

[0005] Therefore, the present disclosure aims to provide a cover that not only maintains the covering state of the object in an optimal state, but also allows inspection work, etc. of necessary areas to be carried out with good workability even while the object is still covered. [Means for solving the problem]

[0006] To achieve the above object, the present disclosure provides a cover, a first cover body formed of an elastomer and having a first engaging portion integrally formed on a first edge; a second cover body formed of an elastomer and having a second locking portion integrally formed on a second edge opposite the first edge and capable of being locked to the first locking portion, When the first end edge and the second end edge are butted together, the first locking portion and the second locking portion are locked to each other, so that the first cover body and the second cover body can cover an object, The first cover body is a pair of first slits formed on either side of the first engaging portion and extending from the first edge in a direction intersecting the first edge; a locked portion provided on a terminal end side of the first slit, The object can be partially exposed by engaging the first engaging portion with the engaged portion in a state in which the opening / closing area having the first engaging portion and sandwiched between the pair of first slits is folded back along the pair of first slits toward the end side of the first slits. Another aspect of the present disclosure is a method for manufacturing a hologram recording medium, comprising: forming a hologram recording medium on a recording medium; forming a hologram recording medium on a recording medium; The engaging portion is a hole through which the barb can be inserted. Another aspect of the present disclosure is a method for manufacturing a hologram recording medium, comprising: forming a hologram recording medium in a hologram recording medium storing a hologram recording medium; the hole is provided on an extension surface of the open-close region when the object is covered by the open-close region, When the barb is inserted into the hole, the groove is engaged with the edge of the hole. In another aspect of the present disclosure, in the above configuration, the first cover body has a step portion recessed from the front surface toward the back surface, The hole is characterized in that it is provided in the step portion. In another aspect of the present disclosure, in the above configuration, a first sound-absorbing material formed of a foamed resin is disposed on an inner surface of the first cover body, A pair of second slits are formed in the first sound-absorbing material on the inside of the opening / closing region, the second slits starting from an inner edge located on the first edge side and extending in a direction intersecting the first edge, and the inner opening / closing region of the first sound-absorbing material sandwiched between the pair of second slits can be folded back together with the opening / closing region along the pair of second slits to the end side of the second slits, thereby partially exposing the object, In a state in which the object is covered by the open / close region, the pair of second slits are covered by the open / close region. Another aspect of the present disclosure is characterized in that, in the above configuration, the inner opening / closing region is fixed to the opening / closing region. In another aspect of the present disclosure, in the above configuration, the second locking portion has a notch formed from the second edge in the butting direction, and a bridge portion formed along the second edge on the outer surface side of the second cover body so as to straddle the notch, and an insertion hole communicating with the notch is formed inside the bridge portion, The first locking portion is locked to the second locking portion by inserting the protruding piece into the insertion hole and locking the barb piece to the bridge portion. Another aspect of the present disclosure is a configuration in which the protruding piece includes a base end protruding from the first edge and a tip end protruding from the protruding end of the base end in the butting direction, the barbed piece is formed between the base end and the tip end, and a groove opening to the opposite side of the butting direction is formed between the base end and the tip end, When the tip and base ends are inserted into the insertion hole, the groove is engaged with the bridge portion and the return piece is positioned outside the bridge portion, thereby causing the first engaging portion to engage with the second engaging portion in a non-detachable state. [Effects of the Invention]

[0007] According to the present disclosure, a highly reliable cover can be provided, which has a simple structure and is made of elastomer, and can maintain a good covering state of an object. On the other hand, if the first locking part is locked to the locked part while the opening / closing area is folded back, the worker can maintain the open state without having to hold the opening / closing area with his or her hand. This allows the object to be exposed with the cover attached. This allows for easy inspection of necessary areas while the cover is still in place. In particular, the first locking part for attaching the cover is used to maintain the opening state of the opening / closing area, making this a rational configuration. In another aspect of the present disclosure, the locked portion is a hole through which a tab provided on the first locking portion can be inserted. According to this aspect, the open state of the opening / closing region can be maintained with a simple structure in which the tab is inserted into the hole to be locked. In another aspect of the present disclosure, when the tab is inserted into the hole, the groove provided in the first locking portion locks into the edge of the hole. According to this aspect, the locking state between the tab and the hole is effectively maintained, and the open-close region is less likely to return to the closed state unexpectedly. In another aspect of the present disclosure, the hole is provided in the step portion. According to this aspect, the step portion can be used to provide the hole at a position where the first locking portion can easily be locked. In another aspect of the present disclosure, a pair of second slits forming the inner open-close region are covered by the open-close region when the open-close region is covering the object. According to this aspect, even if a first sound-absorbing material is provided inside the first cover body, the object can be exposed by opening the inner open-close region. Furthermore, because the second slits are covered by the open-close region in the closed state, the object can be kept covered even when the first sound-absorbing material has second slits, preventing the intrusion of foreign matter from outside. In another aspect of the present disclosure, the inner opening / closing region is fixed to the opening / closing region. According to this aspect, the inner opening / closing region automatically follows the opening / closing operation of the opening / closing region, and the opening / closing operation of the opening / closing region can be performed without any problems even when the inner opening / closing region is provided. In another aspect of the present disclosure, the first locking portion is locked to the second locking portion by inserting the protruding piece of the first locking portion into the insertion hole and locking the barb piece to the bridge portion. According to this aspect, the first locking portion and the second locking portion can be easily engaged and disengaged. In another aspect of the present disclosure, when the distal end and proximal end are inserted into the insertion hole, the groove is engaged with the bridge portion, and the barb is positioned outside the bridge portion, the first locking portion is engaged with the second locking portion in a retaining state. According to this aspect, the reliability of the engagement between the first locking portion and the second locking portion can be improved. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 10 is a perspective view of the cover (with the opening and closing area in a closed state). [Figure 2] FIG. 10 is a left side view of the cover (with the opening and closing area in a closed state). [Figure 3] FIG. 10 is a plan view of the cover (with the opening and closing area in a closed state). [Figure 4] FIG. 1 is an exploded perspective view of the cover as seen from above (the opening and closing area is in a closed state). [Figure 5] FIG. 10 is an exploded perspective view of the cover as seen from below (the opening and closing area is in a closed state). [Figure 6] FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. [Figure 7] FIG. 3 is a cross-sectional view taken along line BB in FIG. 2. [Figure 8] FIG. 3 is a cross-sectional view taken along line CC in FIG. 2. [Figure 9] 10 is an explanatory view showing the state of the first locking portion and the second locking portion when the cover is removed. FIG. [Figure 10] FIG. 10 is a perspective view of the cover with the opening and closing region in an open state. [Figure 11] FIG. 10 is a left side view of the cover with the opening and closing area in an open state. [Figure 12] FIG. 12 is a cross-sectional view taken along line DD in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. FIG. 1 is a perspective view showing an example of a cover. FIG. 2 is a left side view of the cover. FIG. 3 is a plan view of the cover. FIG. 4 is an exploded perspective view of the cover as seen from above. FIG. 5 is an exploded perspective view of the cover as seen from below. For ease of explanation, the upper side (first cover body side) of FIG. 2 is referred to as the top, the lower side (second cover body side) as the bottom, the left side of FIG. 2 as the front, and the right side as the rear. Directions are defined as the side shown in FIG. 2 being the left, and the opposite side being the right. The cover 1 has a rectangular parallelepiped shape. Both the front and rear ends of the rectangular parallelepiped are closed. The cover 1 is divided into two parts, upper and lower, approximately at the center in the vertical direction. The cover 1 is formed by joining a box-shaped first cover body 2 and a box-shaped second cover body 3, facing each other, one above the other.

[0010] The first cover body 2 is made of elastomer. The hardness of the elastomer is, for example, 90 to 95 Shore A hardness. As shown in FIG. 6, a first sound-absorbing material 4 is integrally fixed to the entire inner surface of the first cover body 2. The first sound-absorbing material 4 is made of urethane foam. Urethane foam is an example of a foamed resin of the present disclosure. The second cover body 3 is also made of an elastomer. The hardness of the elastomer is, for example, Shore A hardness of 90 to 95. A second sound absorbing material 5 made of urethane foam is also fixed to the entire inner surface of the second cover body 3. The cover 1 is used to cover the object M shown by the two-dot chain line in Figures 6 and 7 to protect the object M and to block sound from the object M to the outside. The object M is, for example, a motor. With the object M covered, the first sound-absorbing material 4 and the second sound-absorbing material 5 elastically deform to hold the object M.

[0011] A first step 6 is formed on the left side surface 2a of the first cover body 2. The first step 6 is recessed from the front surface to the back surface, so that the central and rear portions of the left side surface 2a are positioned more inward (to the right) than the front portion of the left side surface 2a. The first step 6 extends downward from the upper end of the left side surface 2a, then turns rearward and extends parallel to the lower edge 7 of the first cover body 2, and then turns downward to reach the lower edge 7. An upper surface step portion 8 is provided on the upper surface 2b of the first cover body 2. The upper surface step portion 8 is also recessed from the front surface to the back surface, so that the right rear portion of the upper surface 2b is positioned more inward (lower) than the front and left rear portions. The upper surface step portion 8 extends from the right end of the upper surface 2b to the left, then turns rearward and extends in the front-to-rear direction. However, the rear portion of the upper surface step portion 8 extending in the front-to-rear direction protrudes further to the right than the front portion. As shown in FIG. 7 , the upper surface step portion 8 protruding to the right has a hole 9 that opens to the right. The hole 9 exposes the first sound-absorbing material 4. The upper surface step portion 8 is an example of a step portion of the present disclosure. The hole 9 is an example of a locked portion of the present disclosure. A second step 10 is formed on the left side surface 3a of the second cover body 3. The rear portion of the second step 10 is positioned more inward (right side) than the front portion of the left side surface 3a. The second step 10 extends downward from the end of the first step 6, which reaches the lower edge 7.

[0012] A pair of front and rear first locking portions 20A, 20B are integrally provided on the left and right sides of the lower edge 7 of the first cover body 2. The lower edge 7 is an example of the first edge of the present disclosure. As shown in Fig. 3, the front left and right first locking portions 20A, 20A are positioned in the same front-to-rear positions. The rear left and right first locking portions 20B, 20B are positioned such that the left first locking portion 20B is positioned further forward than the right first locking portion 20B. The rear left first locking portion 20B is positioned further rearward than the first step portion 6. Therefore, the rear left first locking portion 20B is positioned more to the right than the front first locking portion 20A. A pair of front and rear second locking portions 30A, 30B are integrally formed on the left and right sides of the upper edge 11 of the second cover body 3. The upper edge 11 is an example of the second edge of the present disclosure. The front, rear, left and right positions of the second locking portions 30A, 30B correspond to the first locking portions 20A, 20A. Therefore, when the lower edge 7 of the first cover body 2 and the upper edge 11 of the second cover body 3 are butted together, the first locking portions 20A, 20B and the second locking portions 30A, 30B face each other. The first cover body 2 and the second cover body 3 are joined by locking the opposing first locking portions 20A, 20B and second locking portions 30A, 30B with each other.

[0013] The first locking portions 20A, 20B will be described in detail. The first locking portions 20A, 20B have the same structure and include a protruding piece 21 and a return piece 22. The protruding piece 21 is a strip-like plate that protrudes from the lower edge 7 of the first cover body 2 in the direction of abutment with the second locking portions 30A, 30B. The downward arrow D shown in Figures 4 and 5 indicates the abutment direction. The protruding piece 21 includes a base end portion 23 and a tip end portion 24. The base end portion 23 protrudes from the lower end edge 7 in the butting direction D, and the tip end is bent outward to the left and right. The tip portion 24 protrudes in the butt direction D from the bent end of the base portion 23. The tip portion 24 includes a locking plate 25 and an insertion plate 26. The locking plate 25 is continuous with the bent end of the base portion 23. The insertion plate 26 is continuous with the locking plate 25. However, the insertion plate 26 is inclined at a predetermined angle outward to the left and right, intersecting with the butt direction D, relative to the locking plate 25. Therefore, the insertion plate 26 protrudes in an inclined direction that moves away from the first cover body 2 outward to the left and right as it moves toward the butt direction D.

[0014] A plurality of ridges 27, 27... are formed on both sides in the thickness direction of the insertion plate 26. The ridges 27 extend in the width direction of the insertion plate 26 and are formed at equal intervals in the protruding direction of the insertion plate 26. The barbed piece 22 protrudes from the outer surface of the protruding piece 21 between the base end 23 and the locking plate 25 in the opposite direction to the butting direction D. By forming this barbed piece 22, a groove 28 penetrating in the width direction of the protruding piece 21 is formed between the base end 23 of the protruding piece 21 and the barbed piece 22. The groove 28 opens on the opposite side to the butting direction D.

[0015] The second locking portions 30A, 30B have the same structure and include a notch 31, a bridge portion 32, and protrusions 33, 33. The notch 31 is formed by cutting out from the upper edge 11 of the second cover body 3 toward the butting direction D. The bridge portion 32 extends in a strip shape along the upper edge 11 so as to straddle the notch 31 on the outside of the second cover body 3. Therefore, an insertion hole 34 is formed on the inside of the bridge portion 32, communicating with the notch 31 and extending along the upper edge 11. The length of this insertion hole 34 in the direction along the upper edge 11 is slightly larger than the width of the protruding pieces 21 of the first locking portions 20A, 20B. The protrusions 33, 33 protrude outward from the outer surfaces of both sides of the bridge portion 32 that sandwich the notch 31. A head 35 that protrudes in a direction intersecting the butting direction D is formed at the protruding end of each protrusion 33.

[0016] A pair of first slits 40, 40 are formed on the left side surface 2a of the first cover body 2, sandwiching the rear first locking portion 20B. The first slits 40, 40 begin at the lower edge 7, extend upward along the left side surface 2a, and continue to circular terminal ends 41, 41 formed on the top surface 2b. The front first slit 40 crosses the middle portion 12 of the first step portion 6, which extends in the front-rear direction. Thus, an openable / closable area 42 sandwiched between the first slits 40, 40 is formed on the first cover body 2. The first locking portion 20B on the left side surface 2a is located approximately in the center of the openable / closable area 42 in the front-rear direction. On the top surface 2b, the hole 9 in the top surface step portion 8 is located on the extension plane of the openable / closable area 42 and on the extension plane of the first locking portion 20B. Areas requiring maintenance, such as the terminals of the object M, are located inside the openable / closable area 42. As shown in FIGS. 5 and 7, the first sound-absorbing material 4 has an inner edge 43 that extends along the inside of the lower edge 7 of the first cover body 2. A pair of second slits 45, 45 are formed in the first sound-absorbing material 4 on the inside of the left side surface 2a, sandwiching the rear first engaging portion 20B between them. The second slits 45, 45 are located between the first slits 40, 40 in the front-to-rear direction. The second slits 45, 45 begin at the inner edge 43 and extend upward, continuing to their inner ends on the top surface 2b. The ends of the second slits 45, 45 are located at approximately the same positions as the ends 41, 41 of the first slits 40, 40 in the left-to-right direction. Therefore, as shown in FIG. 8, the first sound-absorbing material 4 forms an inner open-close region 46 that is sandwiched between the second slits 45, 45 and integrated with the open-close region 42.

[0017] The opening / closing region 42 can be folded back together with the inner opening / closing region 46 toward the ends 41, 41 of the first slits 40, 40 by lifting the lower edge 7 upward. This causes the opening / closing region 42 and the inner opening / closing region 46 to assume an open state in which part of the cover 1 is open. When the opening / closing region 42 and the inner opening / closing region 46 are returned to their original positions, the opening is closed and the cover 1 assumes a closed state. Because the front-to-rear spacing of the first slits 40 is greater than the front-to-rear spacing of the second slits 45, 45, outward protrusions 47, 47 that protrude outward in the front-to-rear direction beyond the inner open-close region 46 are formed in the open-close region 42. Conversely, inward protrusions 48, 48 that protrude inward in the front-to-rear direction beyond the open-close region 42 are formed in the first sound-absorbing material 4 in front of and behind the second slits 45, 45. When the open-close region 42 is in the closed state, the outward protrusions 47, 47 overlap the outside of the inward protrusions 48, 48 and cover the outside of the second slits 45, 45. 6 and 10, a locking claw 49 is formed facing downward on the inside of the lower end of the front outwardly extending portion 47 that forms the intermediate section 12 of the first step portion 6. A locking hole 50 is formed in the bottom surface of a recess formed on the outside of the lower end of the front inwardly extending portion 48, into which the locking claw 49 is inserted and locked when the opening / closing region 42 is in the closed state. The locking claw 49 is locked into the locking hole 50, thereby maintaining the opening / closing region 42 in the closed state.

[0018] When using the cover 1 configured as described above, first, half of the object M is covered with either the first cover body 2 or the second cover body 3. In this state, the other of the first cover body 2 and the second cover body 3 is placed over the remaining half of the object M, and the opposing first locking portions 20A, 20B and second locking portions 30A, 30B are locked together. Specifically, the insertion plates 26 of the protruding pieces 21 of the first locking portions 20A, 20B are inserted into the insertion holes 34 of the bridge portions 32 of the second locking portions 30A, 30B, and the cover 1 is pulled in the butting direction D until the barbed pieces 22 pass through the bridge portions 32. Once the barbed pieces 22 pass through the bridge portions 32, the bridge portions 32 are elastically locked in the grooves 28. 6 and 7, the first locking portions 20A, 20B are prevented from coming off the second locking portions 30A, 30B and are locked to each other, and the object M is covered with the cover 1.

[0019] In this way, bridge portion 32 is elastically locked in groove 28, preventing first locking portions 20A, 20B from coming off, reducing the possibility of the lock being accidentally released due to an external impact, etc. In particular, because return piece 22 is located on the outside of bridge portion 32, bridge portion 32 is even less likely to come off groove 28. A gap S (FIG. 6) is formed between the first cover body 2 and the second cover body 3 when the object M is covered. Therefore, cables and the like connected to the object M can be drawn out from the gap S.

[0020] On the other hand, when removing the cover 1 from the object M, the insertion plates 26 of each protruding piece 21 of the first locking portions 20A, 20B are grasped and pulled toward the second cover body 3 as shown by arrow a in FIG. 9 . This separates the groove 28 from the bridge portion 32, thereby releasing the retention. At this time, the protruding portions 33, 33 of the second locking portions 30A, 30B are tilted toward the first cover body 2 via the heads 35, 35 as shown by arrow b. This causes the bridge portion 32 to elastically move toward the first cover body 2 together with the protruding portions 33, 33. This allows the bridge portion 32 to easily separate from the groove 28. When the groove 28 is separated from the bridge portion 32, the base end 23 together with the barb 22 is passed through the insertion hole 34 from the inside of the bridge portion 32 and removed from the second locking portions 30A, 30B. Next, the tip end 24 is also passed through the insertion hole 34 from the inside of the bridge portion 32 and removed from the second locking portions 30A, 30B. By releasing the lock between the first locking portions 20A, 20B and the second locking portions 30A, 30B in this way, the first cover body 2 and the second cover body 3 can be removed from the object M.

[0021] Next, a case where maintenance and inspection of the terminal portion and the like of the object M is carried out with the cover 1 attached will be explained. First, the protruding piece 21 of the first locking portion 20B connected to the open-close region 42 is removed from the second locking portion 30B. Next, the protruding piece 21 is grasped and the open-close region 42 is folded back toward the top surface 2b together with the inner open-close region 46. At this time, the locking claws 49 of the open-close region 42 are removed from the locking holes 50 without resistance due to the elasticity of the first sound-absorbing material 4, so that the opening-close region 42 can be folded back without any problems. With the opening / closing area 42 and the inner opening / closing area 46 folded back in this manner, the return piece 22 of the protruding piece 21 is inserted into the hole 9 in the upper surface step portion 8, as shown in Figures 10 to 12. Then, the groove 28 engages with the upper edge of the hole 9, and the opening / closing area 42 and the inner opening / closing area 46 are kept open. As a result, an opening O is partially formed on the left side surface 2a, exposing the terminal portion and the like. Therefore, the worker can perform maintenance, inspection, etc. of the object M through the opening O without having to hold the opening / closing area 42 and the inner opening / closing area 46 with their hands. Once the work is complete, grasp the protruding piece 21 of the opening / closing region 42 and pull it to the right. This will release the tab 22 from the hole 9, releasing the lock, allowing the opening / closing region 42 and the inner opening / closing region 46 to be rotated to the left side surface 2a and returned to the closed state. Next, engage the locking claw 49 with the locking hole 50, and insert the protruding piece 21 into the insertion hole 34 of the second locking part 30B to prevent it from coming out, thereby maintaining the closed state.

[0022] Thus, the cover 1 of the above form includes a first cover body 2 formed of an elastomer and having first engagement portions 20A, 20B integrally formed at the lower edge 7, and a second cover body 3 formed of an elastomer and having second engagement portions 30A, 30B integrally formed at the upper edge 11 opposite the lower edge 7, which can be engaged with the first engagement portions 20A, 20B. The cover 1 can cover the object M with the first cover body 2 and the second cover body 3 by butting the lower edge 7 and the upper edge 11 together and engaging the first engaging portions 20A, 20B and the second engaging portions 30A, 30B with each other. The first cover body 2 is formed on either side of the first engaging portion 20B and includes a pair of first slits 40,40 that extend from the lower edge 7 in a direction intersecting the lower edge 7, and a hole 9 provided at the terminal end of the first slits 40,40. Then, by folding back the opening / closing area 42, which has the first locking portion 20B and is sandwiched between a pair of first slits 40,40, along the pair of first slits 40,40 toward the ends 41,41 of the first slits 40,40, and locking the first locking portion 20B into the hole 9, the object M can be partially exposed.

[0023] According to this configuration, even if the cover 1 is made of an elastomer, it has a simple structure and can maintain a suitable covering state for the object M. Therefore, it is possible to provide a highly reliable cover 1. On the other hand, by engaging the first locking portion 20B with the hole 9 while the opening / closing region 42 is folded back, the open state can be maintained without the operator having to hold the opening / closing region 42 with their hand, and the object M can be exposed with the cover 1 attached. This allows for easy inspection of necessary areas while the cover is still in place. In particular, the first locking portion 20B for attaching the cover is used to maintain the opening state of the opening / closing region 42, resulting in a rational configuration.

[0024] The first engaging portion 20B has a protruding piece 21 that protrudes in the butting direction D from the lower edge 7 to the upper edge 11, and a return piece 22 that protrudes from the protruding piece 21 in the opposite direction to the butting direction D, and the engaged portion is a hole 9 through which the return piece 22 can be inserted. Therefore, with a simple structure in which the barb 22 is inserted into the hole 9 and locked, the openable area 42 can be maintained in an open state. The first locking portion 20B has a groove 28 formed between the protruding piece 21 and the barbed piece 22. The hole 9 is provided on an extension of the open / close region 42 when the open / close region 42 covers the object M. When the barbed piece 22 is inserted through the hole 9, the groove 28 is locked onto the edge of the hole 9. Therefore, the engagement between the tab 22 and the hole 9 is effectively maintained, and the openable area 42 is less likely to suddenly return to the closed state from the open state.

[0025] The first cover body 2 has an upper surface step portion 8 that is recessed from the front surface toward the back surface side, and the hole 9 is provided in the upper surface step portion 8. Therefore, by utilizing the upper surface step portion 8, the hole 9 can be provided at a position where the first locking portion 20B can be easily locked. A first sound-absorbing material 4 made of foamed resin is disposed on the inner surface of the first cover body 2. A pair of second slits 45, 45 are formed in the first sound-absorbing material 4 inside the open-close region 42, starting from an inner edge 43 parallel to the lower edge 7 and extending in a direction intersecting the lower edge 7. An inner open-close region 46 of the first sound-absorbing material 4 sandwiched between the pair of second slits 45, 45 can be folded back together with the open-close region 42 along the pair of second slits 45, 45 toward the terminal end of the second slits 45, 45, thereby partially exposing the object M. When the target object M is covered by the open-close region 42, the pair of second slits 45, 45 are covered by the open-close region 42. Therefore, even if the first sound-absorbing material 4 is provided inside the first cover body 2, the object M can be exposed by opening the inner open-close area 46. Furthermore, since the second slits 45, 45 are covered by the open-close area 42 in the closed state, even if the second slits 45, 45 are provided in the first sound-absorbing material 4, the object M can be kept covered and foreign matter can be prevented from entering from the outside. The inner openable region 46 is fixed to the openable region 42 . Therefore, the inner opening / closing area 46 automatically follows the opening / closing operation of the opening / closing area 42, and even if the inner opening / closing area 46 is provided, the opening / closing operation of the opening / closing area 42 can be performed without any problems.

[0026] The second locking portions 30A, 30B have a notch 31 formed from the upper edge 11 in the butt direction D, and a bridge portion 32 formed along the upper edge 11 on the outer surface side of the second cover body 3 so as to straddle the notch 31. An insertion hole 34 communicating with the notch 31 is formed on the inside of the bridge portion 32. Then, by inserting the protruding piece 21 into the insertion hole 34 and locking the barb piece 22 to the bridge portion 32, the first locking portions 20A, 20B are locked to the second locking portions 30A, 30B. Therefore, the first locking portions 20A, 20B and the second locking portions 30A, 30B can be easily engaged and disengaged. The protruding piece 21 includes a base end 23 that protrudes from the upper edge 11, and a tip end 24 that protrudes from the protruding end of the base end 23 in the butting direction D. The barbed piece 22 is formed between the base end 23 and the tip end 24, and a groove 28 that opens to the opposite side of the butting direction D is formed between the base end 23 and the tip end 24. Then, with the tip end 24 and base end 23 inserted into the insertion hole 34, the groove 28 is engaged with the bridge portion 32 and the return piece 22 is positioned outside the bridge portion 32, whereby the first locking portions 20A, 20B are locked to the second locking portions 30A, 30B in a non-detachable state. Therefore, the reliability of the locked state between the first locking portions 20A, 20B and the second locking portions 30A, 30B can be improved.

[0027] The insertion plate 26 has protrusions 27 formed on both the outer and inner surfaces. Therefore, the protrusions 27 act as a slip prevention when gripping the insertion plate 26, making it easier to operate. The bridge portion 32 is disposed at a position spaced outward from the outer surface of the second cover body 3 . Therefore, the protruding pieces 21 of the first locking portions 20A and 20B can be easily inserted into the inside of the bridge portion 32. The bridge portion 32 has a protrusion 33 on the outer surface thereof that protrudes outward. Therefore, when removing the cover 1, the protrusion 33 can be used to elastically deform the bridge portion 32 in the direction away from the groove 28, making it easy to release the engagement between the first engagement portions 20A, 20B and the second engagement portions 30A, 30B. A first sound absorbing material 4 and a second sound absorbing material 5 made of urethane foam are disposed on the inner surfaces of the first cover body 2 and the second cover body 3. Therefore, the sound insulation effect when covering the object M is improved.

[0028] Modifications of the present disclosure will be described below. The opening and closing area may be formed so that the first engaging portion is located toward the front or rear of the opening and closing area. The opening and closing area can be changed as needed to suit the position and size of the part of the object to be exposed. Therefore, the end of the first slit may be located closer to the right of the top surface of the first cover body than in the above embodiment. Conversely, the end of the first slit may be located on the left side surface of the first cover body rather than on the top surface. The first slit may be curved. There may be multiple opening and closing areas. The opening and closing area is not limited to the left side surface of the first cover body, and may be on other surfaces. The angle at which the first slit extends is not limited to being perpendicular to the first edge as in the above embodiment, but may be any angle as long as it intersects with the first edge. Therefore, the opening and closing region is not limited to being rectangular. The latched portion that folds back the opening / closing region to latch the first latching portion may be a recess instead of a hole, as long as the first latching portion can be latched. The first latching portion that latches onto the latched portion may also be a portion other than the flap. The inner opening / closing region does not have to be fixed to the opening / closing region. In this case, a locking portion that locks the inner opening / closing region to the opening / closing region may be provided so that the inner opening / closing region can follow the opening and closing of the opening / closing region.

[0029] The shapes of the first and second step portions and the top surface step portion of the first cover body can be modified as appropriate. For example, the first step portion may be only a portion that extends in the vertical direction rather than a curved shape. The top surface step portion may also be a shape that extends in the front-to-rear direction over the entire top surface. However, the first and second step portions do not have to be present. The top surface step portion also does not have to be present as long as an engaging portion that can engage with the first engaging portion can be formed. Furthermore, the top surface step portion may be eliminated, and an engaging portion that can engage with the first engaging portion may be formed on the right side surface. The second slits provided in the first sound-absorbing material can also be changed appropriately to match the first slits. The second slits may be formed at the same intervals as the first slits. The locking claw and locking hole that maintain the closed state may be provided on opposite sides, or another locking structure may be used as long as it can position the opening and closing area in the closed state. This locking structure may be provided at the rear of the opening and closing area instead of the front, or may be provided at both the front and rear. This locking structure may also be omitted.

[0030] In the above embodiment, two first locking portions are provided on the left and right sides of the first edge of the first cover body, but the number of first locking portions is not limited to two, and three or more may be provided. Therefore, the opening and closing area may have multiple first locking portions. In this case, multiple locked portions may also be provided. On the side opposite to the side where the opening and closing area is formed, there may be one first locking portion. The second locking portions of the second cover body can also be changed appropriately according to the number and positions of the first locking portions. The shape of the first locking portion itself can also be modified as appropriate. For example, the shape and number of ridges provided on the insertion plate are not limited to the above. The ridges may be provided on only one side of the insertion plate, not both the front and back sides. The ridges may also be omitted. The insertion plate may be provided continuously without being angled relative to the locking plate. The shape and number of the protrusions in the second locking portion are not limited to the above. The protrusions may have a shape in which the upper ends are connected to each other. The protrusions may not be present at all. The overall shape of the cover is not limited to a rectangular parallelepiped, and may be, for example, cylindrical, and can be changed appropriately to match the shape of the object. The first and second sound-absorbing materials are not limited to urethane foam and may be made of other foam resins. As long as the first and second cover bodies provide the desired sound insulation performance, the first and second sound-absorbing materials may be provided partially or may be omitted. [Explanation of symbols]

[0031] DESCRIPTION OF SYMBOLS 1 Cover, 2 First cover body, 2a Left side surface, 2b Top surface, 3 Second cover body, 3a Left side surface, 4 First sound-absorbing material, 5 Second sound-absorbing material, 6 First step portion, 7 Lower edge, 8 Top step portion, 9 Hole, 10 Second step portion, 11 Top edge, 20A, 20B First locking portion, 21 Protruding piece, 22 Return piece, 28 Groove, 30A, 30B Second locking portion, 32 Bridge portion, 34 Insertion hole, 40 First slit, 42 Opening and closing area, 45 Second slit, 46 Inner opening and closing area, M Object.

Claims

1. A cover, a first cover body formed of an elastomer and having a first engaging portion integrally formed on a first edge; a second cover body formed of an elastomer and having a second engaging portion integrally formed on a second edge opposite the first edge and capable of being engaged with the first engaging portion; When the first end edge and the second end edge are butted together, the first locking portion and the second locking portion are locked to each other, so that the first cover body and the second cover body can cover an object, The first cover body is a pair of first slits formed on either side of the first engaging portion and extending from the first edge in a direction intersecting the first edge; a locked portion provided on a terminal end side of the first slit, A cover that can partially expose the object by having the first engaging portion and an opening / closing area sandwiched between the pair of first slits, folding back along the pair of first slits toward the end of the first slits, and engaging the first engaging portion with the engaged portion.

2. the first engaging portion has a protruding piece protruding from the first edge to the second edge in a mating direction, and a barbed piece protruding from the protruding piece to a side opposite to the mating direction, The engaged portion is a hole through which the barb can be inserted. The cover of claim 1 .

3. the first engaging portion has a groove formed between the protruding piece and the barbed piece, the hole is provided on an extension surface of the open-close region when the object is covered by the open-close region, When the barb is inserted into the hole, the groove is engaged with the edge of the hole. The cover according to claim 2.

4. the first cover body has a step portion recessed from the front surface toward the back surface side, The hole is provided in the step portion. The cover according to claim 3.

5. a first sound-absorbing material formed of a foamed resin is disposed on an inner surface of the first cover body; A pair of second slits are formed in the first sound absorbing material on the inside of the opening / closing region, the second slits starting from an inner edge located on the first edge side and extending in a direction intersecting the first edge, and the inner opening / closing region of the first sound absorbing material sandwiched between the pair of second slits can be folded back together with the opening / closing region along the pair of second slits toward the end of the second slits to partially expose the object, When the object is covered by the open / close region, the pair of second slits are covered by the open / close region. The cover of claim 1 .

6. The inner opening / closing region is fixed to the opening / closing region. The cover according to claim 5.

7. The second locking portion has a notch formed from the second edge in the butting direction, and a bridge portion formed along the second edge on the outer surface side of the second cover body so as to straddle the notch, and an insertion hole communicating with the notch is formed inside the bridge portion, The protruding piece is inserted into the insertion hole, and the barb piece is engaged with the bridge portion, whereby the first engaging portion is engaged with the second engaging portion. The cover according to claim 2.

8. the protruding piece includes a base end portion protruding from the first edge and a tip end portion protruding from the protruding end of the base end portion in the butting direction, the barbed piece is formed between the base end portion and the tip end portion, and a groove opening to the opposite side of the butting direction is formed between the base end portion and the tip end portion, With the tip end and the base end inserted into the insertion hole, the groove is engaged with the bridge portion and the barb is positioned outside the bridge portion, so that the first engaging portion is engaged with the second engaging portion in a non-detachable state. The cover of claim 7.

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