cover

Abstract

To provide a highly reliable cover that has a simple structure and can favorably maintain a covered state of an object even if the object is not provided with a fastening member. [Solution] The cover 1 includes a first cover body 2 having first locking portions 20A, 20B integrally formed at a lower edge 7, and a second cover body 3 having second locking portions 30A, 30B integrally formed at an upper edge 11, and an object can be covered by locking the first locking portions 20A, 20B and the second locking portions 30A, 30B to each other. The first cover body 2 includes first slits 40, 40 extending upward from the lower edge 7 as a starting point, an opening locking piece 13 integrally formed in an opening / closing region 42 sandwiched between the first slits 40, 40, and a hole 9 provided on the terminal end 41, 41 side of the first slits 40, 40. When the opening locking piece 13 is locked in the hole 9 with the opening / closing region 42 folded back to the terminal end 41, 41 side, the object can be partially exposed.

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 for the purpose of protecting the object, as well as blocking sound generated from the object to the outside and suppressing vibrations generated by the object. For example, Patent Document 1 discloses a device that prevents noise by covering noise sources such as industrial machinery. This noise prevention device prevents sound leakage to the outside by fixing a covering material, which is made of a waterproof or fireproof sheet with a sound-absorbing material attached to the back side, to required locations on the object using Velcro tape (hook-and-loop fastener). In particular, this noise prevention device discloses an example in which a slit is provided in the covering material to make it partially openable and closable, and the open / closed portion is fixed with hook-and-loop fastener in a normal state. In this example, the open / closed portion can be opened to expose a part of the object when necessary, allowing maintenance work and monitoring of instruments to be performed with the covering material fixed. [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 and closing part, the opening and closing part may return to its original closed state when the hand is released even after it is opened. In this case, the worker must work with only one hand while holding the opening and closing part with the other hand to prevent it from returning, which reduces workability.

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

[0006] In order 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 engaging portion integrally formed on a second edge opposite to 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 against each other, the first engaging portion and the second engaging portion are engaged with each other, so that an object can be covered with the first cover body and the second cover body. The first cover body is A pair of first slits extending from the first edge in a direction intersecting the first edge; an opening locking portion integrally formed in an opening / closing region sandwiched between the pair of first slits; a latched portion provided on a terminal end side of the first slit, The present invention is characterized in that when the opening and closing area is folded back along the pair of first slits toward the end side of the first slits and the opening locking portion is locked to the locked portion, the object can be partially exposed. In another aspect of the present disclosure, in the above configuration, the opening locking portion is an opening locking piece that protrudes in a direction opposite to a direction in which the first end edge is butted against the second end edge, The locked portion is a hole into which the release locking piece can be locked. In another aspect of the present disclosure, in the above configuration, the opening locking piece has a groove formed between the opening and closing area, 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 opening locking piece is inserted into the hole, the groove is locked to the edge of the hole. In another aspect of the present disclosure, in the above configuration, the opening and closing area has a step portion protruding toward a front surface side of the first cover body, The opening locking piece is characterized in being provided at the step portion. Another aspect of the present disclosure is characterized in that, in the above configuration, the hole is formed with a size that allows the step portion to be inserted when the opening and closing area is in a folded-over state. In another aspect of the present disclosure, in the above configuration, the pair of slits are formed on either side of the first locking portion, and the first locking portion that is integrated with the opening and closing region is also used as the opening locking portion, The locked portion is characterized in that it is a locking hole into which the first locking portion can be inserted and locked when the opening and closing region is folded back toward the terminal end side of the first slit. 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 on the inside of the opening / closing region in the first sound absorbing material, 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 is folded back together with the opening / closing region along the pair of second slits to the end side of the second slits to partially expose 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 and closing region is fixed to the opening and closing region. Effect of the Invention

[0007] In the present disclosure, when the opening and closing region is folded back along the pair of first slits toward the end side of the first slits and the opening locking portion is locked to the locked portion, the object can be partially exposed. With this configuration, the object can be appropriately covered with a simple structure even if it is made of elastomer. Therefore, a highly reliable cover can be provided. On the other hand, by engaging the opening locking part with the locked part in a folded-over state, the open state can be maintained without the operator having to hold the opening / closing area with his / her hand, and the object can be exposed with the cover attached. Therefore, inspection work on necessary parts can be easily performed while the cover is still in place. In another aspect of the present disclosure, the opening locking portion is an opening locking piece, and the locked portion is a hole through which the opening locking piece can be inserted. According to this aspect, the open state of the opening / closing area can be maintained with a simple structure in which the opening locking piece is inserted into the hole and locked. In another aspect of the present disclosure, the opening locking piece has a groove formed between it and the opening / closing region, and when the opening locking piece is inserted through the hole, the groove locks with the edge of the hole. According to this aspect, the locking state between the opening locking piece and the hole is effectively maintained, and the opening / closing area in the open state is less likely to suddenly return to the closed state. In another aspect of the present disclosure, the opening locking piece is provided at a step portion of the opening and closing area. According to this aspect, the step portion can be utilized to provide the opening locking piece at a position where it can be easily locked into the hole. In another aspect of the present disclosure, the hole is formed with a size that allows the step portion to be inserted in the folded-back state of the open / close region. According to this aspect, even if a step portion is formed in the opening / closing region, the opening / closing region can be folded back along the surface of the first cover body, and the opening / closing region is less likely to interfere with work in the open state. In another aspect of the present disclosure, a pair of slits are formed on either side of the first locking portion, and the first locking portion that is integrated with the opening and closing region also serves as the opening locking portion, and the locked portion is a locking hole into which the first locking portion can be inserted and locked when the opening and closing region is folded back. According to this aspect, a rational configuration is achieved in which the first locking portion also serves as the opening locking portion. In another aspect of the present disclosure, a pair of second slits are formed in a first sound-absorbing material arranged on the inner surface of a first cover body, and an object can be partially exposed by folding back the inner opening / closing area sandwiched between the pair of second slits together with the opening / closing area toward the end side of the second slits. When the object is covered by the open / close region, the second slit is covered by the open / close region. According to this aspect, even if the first sound absorbing material is provided inside the first cover body, the object can be exposed by opening the inner opening and closing area. Also, since the second slit is covered by the opening and closing area in the closed state, even if the second slit is provided in the first sound absorbing material, the covered state of the object can be maintained and intrusion of foreign matter from the outside can be prevented. In another aspect of the present disclosure, the inner closure region is secured to the closure region. According to this aspect, the inner opening / closing area automatically follows the opening / closing operation of the opening / closing area, and even if the inner opening / closing area is provided, the opening / closing operation of the opening / closing area can be performed without any hindrance. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a perspective view of the cover of the first embodiment (with the opening and closing area in a closed state). [Diagram 2] FIG. 1 is a left side view of the cover of the first embodiment (with the opening and closing area in a closed state). [Diagram 3] FIG. 2 is a plan view of the cover of the first embodiment (with the opening and closing area in a closed state). [Figure 4] FIG. 2 is an exploded perspective view of the cover of the first embodiment as viewed from above (with the opening and closing area in a closed state). [Diagram 5] FIG. 2 is an exploded perspective view of the cover of form 1 as viewed from below (with the opening and closing area in a closed state). [Figure 6] 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. [Figure 8] 3 is a cross-sectional view taken along line CC in FIG. 2. [Figure 9] FIG. 3 is a cross-sectional view taken along line DD in FIG. [Figure 10] 10 is an explanatory diagram showing the state of the first and second locking portions when the cover of the first embodiment is removed. FIG. [Figure 11] FIG. 2 is a perspective view of the cover of form 1 with the opening and closing region in an open state. [Figure 12] FIG. 13 is a left side view of the cover of the first embodiment with the opening and closing region in the open state. [Figure 13] 13 is a cross-sectional view taken along line EE in FIG. 12. [Figure 14] FIG. 11 is a perspective view of the cover of the second embodiment (with the opening and closing area in a closed state). [Figure 15] FIG. 11 is a plan view of the cover of the second embodiment (with the opening and closing area in a closed state). [Figure 16] 16 is a cross-sectional view taken along the line FF in FIG. 15. [Figure 17] FIG. 11 is a perspective view of the cover of form 2 with the opening and closing region in the open state. [Figure 18] FIG. 13 is a left side view of the cover in the second embodiment with the opening and closing region in the open state. [Figure 19] 19 is a cross-sectional view taken along line GG in FIG. 18. [Figure 20] FIG. 11 is a perspective view of the cover of the third embodiment (with the opening and closing area in a closed state). [Figure 21] FIG. 11 is a plan view of the cover of the third embodiment (with the opening and closing area in a closed state). [Figure 22] 22 is a cross-sectional view taken along line HH in FIG. 21. [Diagram 23] FIG. 11 is a perspective view of the cover of form 3 with the opening and closing region in the open state. [Figure 24] FIG. 13 is a left side view of the cover of the third embodiment with the opening and closing region in the open state. [Diagram 25] 25 is a cross-sectional view taken along line II in FIG. 24. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. [Form 1] Fig. 1 is a perspective view showing an example of the cover 1. Fig. 2 is a left side view of the cover 1. Fig. 3 is a plan view of the cover 1. Fig. 4 is an exploded perspective view of the cover 1 seen from above. Fig. 5 is an exploded perspective view of the cover 1 seen from below. In all of these views, an opening / closing area 42, which will be described later, is in a closed state. For convenience, the upper side of Figure 2 (the side of first cover body 2) will be referred to as the top, the lower side (the side of second cover body 3) as the bottom, the left side of Figure 2 will be referred to as the front, the right side as the rear, and the side shown in Figure 2 will be referred to as the left and the opposite side as 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, top and bottom, approximately at the center in the vertical direction, and is formed by joining a box-shaped first cover body 2 and a box-shaped second cover body 3, which are also box-shaped, facing each other and joined together at the top and bottom.

[0010] The first cover body 2 is made of an elastomer. The hardness of the elastomer is, for example, 90 to 95 Shore A hardness. A first sound absorbing material 4 is fixed integrally to the entire inner surface of the first cover body 2. The first sound absorbing material 4 is made of urethane foam. The 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 fixed to the entire inner surface of the second cover body 3. The cover 1 is used to cover an object M shown by a two-dot chain line in Figures 6 and 7 to protect the object M and to insulate 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 center and rear portions are positioned inward (to the right) of 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 bends backward, extends parallel to the lower edge 7 of the first cover body 2, and further bends 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 is positioned inward (lower) than the front and left rear portions of the upper surface 2b. The upper surface step portion 8 extends from the right end of the upper surface 2b to the left, and then bends backward and extends in the front-rear direction. However, the rear portion of the upper surface step portion 8 extending in the front-rear direction protrudes further to the right than the front portion. A hole 9 that opens to the right side is formed in the front portion of the upper surface step portion 8. 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 located 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 that reaches the lower edge 7.

[0012] As shown in Figs. 4 and 5, 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 front and rear positions of the first locking portions 20A, 20B are the same on the left and right, but on the left side surface 2a, the rear first locking portion 20B is disposed rearward of the first step portion 6. Therefore, the first locking portion 20B is positioned to the right of the front first locking portion 20A in the left-right direction. The lower edge 7 is an example of a first edge of the present disclosure. In the second cover body 3, a pair of front and rear second locking portions 30A, 30B are integrally provided on the left and right sides of the upper edge 11. The second locking portions 30A, 30B are located at the same front and rear positions on the left and right, but on the left side surface 3a, the rear second locking portion 30B is disposed rearward of the second step portion 10 and is positioned rightward of the front second locking portion 30A in the left-right direction. The upper edge 11 is an example of a second edge of the present disclosure. 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 against each other, 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 in the shape of a strip protruding from the lower end edge 7 of the first cover body 2 in the abutting direction with the second locking portions 30A, 30B. The arrow T shown in Figures 4, 5, and 8 indicates the abutting direction. The protruding piece 21 includes a base end 23 and a tip end 24. The base end 23 protrudes from the lower end edge 7 in the butt-joint direction T, and the tip is bent outwardly to the left and right. The tip portion 24 protrudes from the bent end of the base portion 23 in the butt direction T. 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, as shown in Figs. 6 and 7, the insertion plate 26 is inclined at a predetermined angle outward to the left and right intersecting with the butt direction T with respect to the locking plate 25. Therefore, the insertion plate 26 protrudes in an inclined direction away from the first cover body 2 outward to the left and right as it moves toward the butt direction T.

[0014] A plurality of protrusions 27, 27... are formed on both sides in the thickness direction of the insertion plate 26. The protrusions 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 return 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 T. Due to the formation of this return piece 22, a locking 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 return piece 22. The locking groove 28 opens to the opposite side to the butting direction T.

[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 end edge 11 of the second cover body 3 toward the butt-joint direction T. 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 protruding in the butting direction T is formed at the protruding end of each of the protrusions 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 therebetween. The first slits 40, 40 extend upward from the left side surface 2a starting from the lower edge 7, and are continuously formed to circular terminal ends 41, 41 formed on the upper surface 2b. The front first slit 40 crosses the middle portion 12 extending in the front-rear direction of the first step portion 6. Therefore, an opening and closing region 42 sandwiched between the first slits 40, 40 is formed on the first cover body 2. The first locking portion 20B is located at the rear of the opening and closing region 42 in the front-rear direction. In the opening / closing region 42, an opening locking piece 13 is formed on the upper surface of the middle portion 12. The opening locking piece 13 is a plate extending in the left-right direction and is L-shaped in rear view with the left side protruding upward. Therefore, a groove 14 is formed between the left side of the opening locking piece 13 and the opening / closing region 42. The opening locking piece 13 is an example of an opening locking portion of the present disclosure. On the upper surface 2b, the hole 9 of the upper surface step portion 8 is located on an extension of the opening / closing area 42 and on an extension of the opening locking piece 13. Inside the opening / closing area 42, there are located parts that require maintenance, such as the terminal portion of the object M.

[0017] The first sound-absorbing material 4 has an inner edge 43 extending along the inner side of the lower edge 7 of the first cover body 2. In the first sound-absorbing material 4 on the inner side of the left side surface 2a, a pair of second slits 45, 45 are formed in front and behind the first locking portion 20B on the rear side. As shown in FIG. 9, the second slits 45, 45 are arranged between the first slits 40, 40 in the front-rear direction. The second slits 45, 45 extend upward from the inner edge 43 as a starting point, and are continuously formed to the inner end of the upper surface 2b. The end of the second slits 45, 45 is located at approximately the same position as the end 41, 41 of the first slits 40, 40 in the left-right direction. Therefore, the first sound-absorbing material 4 has an inner opening and closing area 46 that is sandwiched between the second slits 45, 45 and is integrated with the opening and closing area 42.

[0018] The opening / closing region 42 can be folded back toward the ends 41, 41 of the first slits 40, 40 together with the inner opening / closing region 46 by lifting the lower edge 7 upward. Then, the opening / closing region 42 and the inner opening / closing region 46 are in an open state in which a 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 closed state is achieved. Since the front-to-rear spacing of the first slits 40,40 is larger 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 opening-and-closing region 46 are formed in the opening-and-closing region 42. Conversely, inward protrusions 48,48 that protrude inward in the front-to-rear direction beyond the opening-and-closing region 42 are formed in the first sound-absorbing material 4 in front of and behind the second slits 45,45. When the opening-and-closing region 42 is in a 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, 7 and 11, 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 portion 12 of the first step portion 6. A locking hole 50 into which the locking claw 49 is inserted and locked when the opening / closing region 42 is in the closed state is formed in the bottom surface of a recess formed on the outside of the lower end of the front inwardly extending portion 48. The locking claw 49 is locked with the locking hole 50, thereby maintaining the opening / closing region 42 in the closed state. The intermediate portion 12 is an example of a step portion that protrudes toward the front surface side of the first cover of the present disclosure.

[0019] When using the cover 1 configured as 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 first locking portions 20A, 20B and the second locking portions 30A, 30B facing each other are locked with each other. 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 return pieces 22 are pulled in the butting direction T until they pass through the bridge portions 32. When the return pieces 22 pass through the bridge portions 32, the bridge portions 32 are elastically locked with the locking grooves 28. Then, as shown in FIG. 8, 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.

[0020] In this way, the bridge portion 32 is elastically engaged with the engagement groove 28 to prevent the first engagement portions 20A, 20B from coming off, reducing the possibility that the engagement between them will be accidentally released due to an external impact, etc. In particular, since the return piece 22 is located on the outside of the bridge portion 32, the bridge portion 32 is more unlikely to come off the engagement groove 28. In addition, a gap S (FIGS. 6 and 7) is formed between the first cover body 2 and the second cover body 3 when the object M is covered. Therefore, a cable or the like connected to the object M can be pulled out from the gap S.

[0021] On the other hand, when removing the cover 1 from the object M, the insertion plates 26 of the protruding pieces 21 of the first locking parts 20A, 20B are grasped and pulled so as to be tilted toward the second cover body 3 side as shown by the arrow a in FIG. 10. Then, the locking groove 28 is separated from the bridge part 32, and the retention can be released. At this time, the protrusions 33, 33 of the second locking parts 30A, 30B are tilted toward the first cover body 2 side via the heads 35, 35 as shown by the arrow b. Then, the bridge part 32 moves elastically toward the first cover body 2 side together with the protrusions 33, 33. Therefore, the bridge part 32 can be easily separated from the locking groove 28. When the locking 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 locking between the first locking portions 20A, 20B and the second locking portions 30A, 30B in this manner, the first cover body 2 and the second cover body 3 can be removed from the object M.

[0022] When performing maintenance and inspection of the terminals and the like of the object M with the cover 1 attached, first, the protruding piece 21 of the first locking part 20B connected to the opening and closing area 42 is removed from the second locking part 30B. Next, as shown in Figures 11 and 12, the protruding piece 21 is grasped as it is and the opening and closing area 42 is folded back together with the inner opening and closing area 46 towards the top surface 2b. At this time, the locking claws 49 of the opening and closing area 42 are removed from the locking holes 50 without resistance due to the elasticity of the first sound-absorbing material 4, so that the folding back of the opening and closing area 42 is not hindered. With the opening / closing area 42 and the inner opening / closing area 46 folded back in this manner, the opening locking piece 13 is inserted into the hole 9 in the upper surface step portion 8. Then, as shown in Fig. 13, the groove 14 locks into the upper edge of the hole 9, and the opening / closing area 42 and the inner opening / closing area 46 are maintained in the open state. As a result, an opening O is partially formed in 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 his or her hands. When the work is completed, grasp the protruding piece 21 of the opening / closing region 42 and pull it to the right. Then, the opening locking piece 13 leaves the hole 9 and the lock is released, so the opening / closing region 42 and the inner opening / closing region 46 can be rotated to the left side surface 2a to return to the closed state. Next, the locking claw 49 is locked into the locking hole 50, and the protruding piece 21 is inserted into the insertion hole 34 of the second locking part 30B to prevent it from coming out, thereby maintaining the closed state.

[0023] 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 is capable of covering the object M with the first cover body 2 and the second cover body 3 by engaging the first engagement portions 20A, 20B and the second engagement portions 30A, 30B with each other while the lower edge 7 and the upper edge 11 are butted together. The first cover body 2 includes a pair of first slits 40,40 extending from the lower edge 7 in a direction intersecting the lower edge 7, an opening locking piece 13 integrally formed in an opening / closing area 42 sandwiched between the pair of first slits 40,40, and a hole 9 provided at the terminal end of the first slits 40,40. Then, when the opening / closing area 42 is folded back along the pair of first slits 40, 40 toward the ends 41, 41 of the first slits 40, 40, the opening locking piece 13 is locked into the hole 9, whereby the object M can be partially exposed.

[0024] According to this configuration, even if the cover 1 is made of an elastomer, the cover 1 can maintain a suitable covering state of the object M with a simple structure. Therefore, the cover 1 can be provided with high reliability. On the other hand, by engaging the opening locking piece 13 with the hole 9 in a state where the opening / closing region 42 is folded back, the open state can be maintained without the worker having to hold the opening / closing region 42 with his / her hand, and the object M can be exposed with the cover 1 attached. Therefore, inspection work of necessary parts can be performed with good workability while the cover is in place.

[0025] The opening locking portion is an opening locking piece 13 that protrudes in the opposite direction to the butting direction T from the lower edge 7 to the upper edge 11, and the locked portion is a hole 9 through which the opening locking piece 13 can be inserted. Therefore, with a simple structure in which the opening locking piece 13 is inserted into the hole 9 and locked, the openable / closable area 42 can be maintained in an open state. The opening locking piece 13 has a groove 14 formed between it and the opening / closing region 42, and the hole 9 is provided on the extension surface of the opening / closing region 42 when the object M is covered by the opening / closing region 42.When the opening locking piece 13 is inserted into the hole 9, the groove 14 locks onto the edge of the hole 9. Therefore, the locking state between the opening locking piece 13 and the hole 9 is effectively maintained, and the opening / closing area 42 in the open state is unlikely to suddenly return to the closed state.

[0026] The opening / closing area 42 has a middle portion 12 of the first step portion 6 that protrudes toward the front surface side of the first cover body 2, and the opening locking piece 13 is provided on the middle portion 12. Therefore, by utilizing the intermediate portion 12, the opening locking piece 13 can be provided at a position where it can be easily locked into the hole 9. A first sound absorbing material 4 made of foamed resin is disposed on the inner surface of the first cover body 2, and a pair of second slits 45, 45 are formed in the first sound absorbing material 4 inside the opening / closing region 42, the pair of second slits 45, 45 extending from an inner edge 43 parallel to the lower edge 7 as a starting point in a direction intersecting the lower edge 7. When an inner opening / closing region 46 of the first sound absorbing material 4 sandwiched between the pair of second slits 45, 45 is folded back together with the opening / closing region 42 along the pair of second slits 45, 45 toward the terminal side of the second slits 45, 45, the object M can be partially exposed. 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 opening / closing region 46. Furthermore, since the second slits 45, 45 are covered by the opening / closing region 42 in the closed state, even if the second slits 45, 45 are provided in the first sound-absorbing material 4, the covered state of the object M can be maintained and intrusion of foreign matter from the outside can be prevented. The inner openable region 46 is fixed to the openable region 42 . Therefore, the inner opening / closing area 46 automatically follows the opening and closing operation of the opening / closing area 42, and even if the inner opening / closing area 46 is provided, the opening and closing operation of the opening / closing area 42 can be performed without any hindrance.

[0027] The second engagement portions 30A, 30B have a notch 31 formed in the butt direction T from the upper edge 11, and a bridge portion 32 formed along the upper edge 11 so as to straddle the notch 31 on the outer surface side of the second cover body 3, and 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 protruding from the upper edge 11 and a tip end 24 protruding from the protruding end of the base end 23 in the butt direction T, and the return piece 22 is formed between the base end 23 and the tip end 24, and a locking groove 28 is formed between the base end 23 and the tip end 24, opening to the opposite side of the butt direction T. Then, with the tip end 24 and the base end 23 inserted into the insertion hole 34, the locking groove 28 is locked into 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 into the second locking portions 30A, 30B in a non-slip state. This improves the reliability of the locked state between the first locking portions 20A, 20B and the second locking portions 30A, 30B.

[0028] The insertion plate 26 has protrusions 27 formed on both its outer and inner surfaces. Therefore, the protrusions 27 act as a slip prevention mechanism when the insertion plate 26 is gripped, 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 . This makes it easier to insert the protruding pieces 21 of the first locking portions 20A and 20B into the inside of the bridge portion 32. The bridge portion 32 has an outer surface provided with a protrusion 33 that protrudes outward. Therefore, when removing the cover 1, the bridge portion 32 can be elastically deformed in the direction away from the locking groove 28 by utilizing the protrusion 33, and the locking operation between the first locking portions 20A, 20B and the second locking portions 30A, 30B can be easily performed. 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.

[0029] Next, a modification of the first embodiment will be described. The shape of the opening locking piece is not limited to the above-mentioned form 1. As long as it can be locked into the hole in the upper surface step portion, it may be made wider or have a curved hook shape. The shape of the hole may also be slit-like by reducing the width to match the shape of the opening locking piece, or may be round instead of square. The upper step portion in which the hole is formed may also be inclined or curved. In the opening and closing region of the above-mentioned form 1, the first locking portion is formed to be located at the rear in the front-rear direction, but the first locking portion may be formed to be located at the center in the front-rear direction of the opening and closing region. The first locking portion does not have to be located in the opening and closing region.

[0030] Next, another embodiment of the present disclosure will be described, in which the same components as those in the first embodiment are denoted by the same reference numerals and overlapping descriptions will be omitted. [Form 2] Fig. 14 is a perspective view of the cover 100 in the second embodiment, Fig. 15 is a plan view of the cover 100, and Fig. 16 is a cross-sectional view taken along the line FF in Fig. 15. In all cases, the opening and closing region is in a closed state. In the cover 100, the front end of the upper surface step portion 8 is located toward the rear, and the area of ​​the recessed portion is smaller than that of the cover 1 in the form 1. Therefore, when the opening / closing area 42 is folded back, the upper surface step portion 8 is not located below the opening lock piece 13. The hole 9 is not formed in the upper surface step portion 8 but in the upper surface 2b in front of the upper surface step portion 8. The hole 9 is rectangular in plan view and is sized to allow a part of the opening / closing region 42, including the middle portion 12 of the first step portion 6 where the opening locking piece 13 is formed, to be inserted therein.

[0031] Therefore, when performing maintenance and inspection of the terminals of the object M with the cover 100 attached, first, the protruding piece 21 of the first locking part 20B connected to the opening and closing area 42 is pulled out from the second locking part 30B. Next, as shown in Figs. 17 and 18, the protruding piece 21 is grasped as it is and the opening and closing area 42 is folded back together with the inner opening and closing area 46 towards the upper surface 2b. With the opening / closing area 42 and the inner opening / closing area 46 folded back in this manner, the middle portion 12 of the first step portion 6 in the opening / closing area 42 is inserted into the hole 9 in the upper surface step portion 8, and the opening locking piece 13 is locked to the left edge of the hole 9. At this time, the first locking portion 20B passes over the upper surface step portion 8 and is placed in the recessed portion of the upper surface 2b. Then, as shown in FIG. 19, the groove 14 is locked to the upper edge of the hole 9, and the opening / closing area 42 and the inner opening / closing area 46 are maintained in the open state. Therefore, an opening O is partially formed in 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 holding the opening / closing area 42 and the inner opening / closing area 46 with his / her hands.

[0032] When the work is completed, the locking claw 49 of the opening / closing region 42 or the protruding piece 21 of the first locking portion 20B is grasped and pulled to the right. Then, the opening locking piece 13 leaves the hole 9 and the lock is released, so the opening / closing region 42 and the inner opening / closing region 46 can be rotated to the left side surface 2a to return to the closed state. Next, the locking claw 49 is locked in the locking hole 50, and the protruding piece 21 is inserted into the insertion hole 34 of the second locking portion 30B to prevent it from coming out, thereby maintaining the closed state.

[0033] In this way, the cover 100 of form 2 also has a simple structure and is made of an elastomer, but can adequately maintain the covering state of the object M. Therefore, a highly reliable cover 100 can be provided. On the other hand, by engaging the opening locking piece 13 with the hole 9 in a state where the opening / closing region 42 is folded back, the open state can be maintained without the worker having to hold the opening / closing region 42 with his / her hand, and the object M can be exposed with the cover 100 attached. Therefore, inspection work of necessary parts can be performed with good workability while the cover is in place. In particular, the hole 9 is formed with a size that allows the middle portion 12 to be inserted when the open / close region 42 is in the folded-over state. Therefore, even if the opening / closing area 42 has a stepped intermediate portion 12, the opening / closing area 42 can be folded back along the upper surface 2b of the first cover body 2, and the opening / closing area 42 is less likely to get in the way of work when in the open state.

[0034] Next, a modification of the second embodiment will be described. The shape of the opening locking piece is not limited to the above-mentioned form 2. As long as it can be locked to the edge of the hole, it may be made wider or have a curved hook shape. The shape of the hole can also be changed appropriately according to the shape of the step portion of the opening / closing area, and may be elliptical instead of rectangular. In the opening and closing region of the above-mentioned form 2, the first locking portion is formed to be located at the rear in the front-rear direction, but the first locking portion may be formed to be located at the center in the front-rear direction of the opening and closing region. The first locking portion does not have to be located in the opening and closing region.

[0035] [Form 3] Fig. 20 is a perspective view of the cover 200 in the third embodiment, Fig. 21 is a plan view of the cover 200, and Fig. 22 is a cross-sectional view taken along line HH in Fig. 21. In all cases, the opening and closing region is in a closed state. In the cover 200, no upper surface step portion is provided on the upper surface 2b, and the first slits 40, 40 are provided at positions on the rear side of the left side surface 2a, sandwiching the first locking portion 20B therebetween. Therefore, the first locking portion 20B is integrated with the opening / closing area 42 at approximately the center in the front-rear direction. A locking hole 15 is formed on the upper surface 2b at a position where the first locking portion 20B will be placed when the opening / closing region 42 is folded back. The locking hole 15 is rectangular in a plan view, and the protruding piece 21 of the first locking portion 20B can be inserted into the locking hole 15 when the opening / closing region 42 is folded back. In this inserted state, the return piece 22 of the protruding piece 21 can be locked to the edge of the locking hole 15. The locking hole 15 is an example of a locked portion of the present disclosure. A relief hole 16 is formed in front of the locking hole 15. The relief hole 16 is rectangular in plan view and is sized to allow a part of the opening / closing region 42, including the intermediate portion 12 of the first step portion 6, to be inserted therein when the opening / closing region 42 is folded back. In this embodiment 3, no opening locking piece is provided in the intermediate portion 12.

[0036] Therefore, when performing maintenance and inspection of the terminals and the like of the object M with the cover 200 attached, first, the protruding piece 21 of the first locking part 20B connected to the opening and closing area 42 is pulled out from the second locking part 30B. Next, as shown in Figs. 23 and 24, the protruding piece 21 is grasped as it is and the opening and closing area 42 is folded back together with the inner opening and closing area 46 towards the upper surface 2b. With the opening / closing region 42 and the inner opening / closing region 46 folded back in this manner, the middle portion 12 of the first step portion 6 in the opening / closing region 42 is inserted into the relief hole 16 in the top surface 2b. At the same time, the protruding piece 21 of the first locking portion 20B is inserted into the locking hole 15 to lock the return piece 22 to the edge portion. At this time, the middle portion 12 is inserted into the relief hole 16 to bring the folded end of the opening / closing region 42 into close contact with the top surface 2b, so that the insertion of the protruding piece 21 is not hindered. 25, the locking groove 28 of the protruding piece 21 locks into the left edge of the locking hole 15, and the opening / closing area 42 and the inner opening / closing area 46 are maintained in the open state. As a result, an opening O is partially formed on the left side surface 2a, exposing the terminals 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 his or her hands.

[0037] When the work is completed, the protruding piece 21 of the first locking part 20B is grasped and pulled to the right. Then, the return piece 22 leaves the locking hole 15, releasing the lock, and the protruding piece 21 can be removed from the locking hole 15. The opening / closing area 42 and the inner opening / closing area 46 can then be rotated to the left side surface 2a to return to the closed state. Next, the locking claw 49 is locked into the locking hole 50, and the protruding piece 21 is inserted into the insertion hole 34 of the second locking part 30B to prevent it from coming out, maintaining the closed state.

[0038] In this way, the cover 200 of form 3 also has a simple structure and is made of an elastomer, but can adequately maintain the covering state of the object M. Therefore, a highly reliable cover 200 can be provided. On the other hand, by engaging the first engaging portion 20B with the engaging hole 15 with the opening / closing region 42 folded back, the open state can be maintained without the operator having to hold the opening / closing region 42 by hand, and the object M can be exposed with the cover 200 attached. Therefore, inspection work on necessary parts can be performed with good workability while the cover is in place. Particularly here, a pair of first slits 40, 40 are formed on either side of the first locking portion 20B, and the first locking portion 20B that is integrated with the opening / closing region 42 also serves as the opening locking portion. The locked portion is the locking hole 15 into which the first locking portion 20B can be inserted and locked when the opening / closing region 42 is folded back toward the end side of the first slit 40. Therefore, a rational configuration is achieved in which the first locking portion 20B also serves as an opening locking portion.

[0039] A modification of the third embodiment will now be described. In the above-mentioned third embodiment, the first locking portion integral with the opening / closing region is provided at approximately the center of the opening / closing region in the front-to-rear direction, but the first locking portion may be located toward the rear of the opening / closing region. The first locking portion may lock a portion other than the flap into the locking hole. There may be a plurality of first locking portions in the opening / closing region. In this case, a locking hole may be provided for each first locking portion, or a plurality of first locking portions may be inserted into and locked into one locking hole. The locking hole is not limited to a rectangular shape in a plan view, and the shape in a plan view of the locking hole can be appropriately changed as long as the first locking portion can be inserted and locked. In the above-mentioned embodiment 3, a relief hole is provided for inserting the step portion of the open / close region, but the shape of the relief hole can also be changed appropriately according to the shape of the step portion.

[0040] Below, modified examples common to each embodiment of the present disclosure will be described. The opening and closing area can be changed as appropriate according to 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 upper surface of the first cover body than in the above embodiment. Conversely, the end of the first slit may be located on the right side surface of the first cover body instead of on the upper surface. The first slit may be curved. There may be a plurality of opening and closing areas, and they may be located not only on the left side surface of the first cover body but also on other surfaces. The angle at which the first slit extends is not limited to being perpendicular to the first edge, but may be any angle that intersects with the first edge. Therefore, the opening and closing region is not limited to being rectangular. 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.

[0041] The shapes of the first and second step portions of the first cover body can be changed as appropriate. For example, the first step portion may be only a portion that extends in the vertical direction, rather than a curved shape. However, the first and second step portions may not be present. The second slits provided in the first sound absorbing material can also be appropriately changed to match the first slits. The second slits may be formed at the same intervals as the first slits. The locking claw and the locking hole may be provided on opposite sides, or another locking structure may be adopted as long as the opening and closing area can be positioned 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 not be necessary.

[0042] In each of the above embodiments, two first locking portions are provided on the left and right sides of the first edge of the first cover body, respectively. However, the number of first locking portions is not limited to two, and three or more may be provided. There may be only one first locking portion on the side opposite to the side where the opening and closing area is formed. The second locking portions of the second cover body can also be appropriately changed according to the number and positions of the first locking portions. The shape of the first locking portion itself can also be changed as appropriate. For example, the shape and number of the 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 on both sides. The ridges may not be provided at all. The shape and number of the protrusions in the second locking portion are not limited to the above. The protrusions may be shaped so that their upper ends are connected to each other. The protrusions may not be present. The overall shape of the cover is not limited to a rectangular parallelepiped, and may be, for example, cylindrical, and can be appropriately changed according to the shape of the target object. The first and second sound absorbing materials are not limited to urethane foam, and may be made of other foamed resins. If the desired sound insulation performance is obtained with the first and second cover bodies, the first and second sound absorbing materials may be provided partially or may be omitted. It is not necessary to provide a gap between the first cover body and the second cover body. In this case, an opening may be formed at a location where a cable or the like is to be pulled out. [Explanation of symbols]

[0043] 1,100,200··cover, 2··first cover body, 2a··left side surface, 2b··upper 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 end edge, 8··upper surface step portion, 9··hole, 10··second step portion, 11··upper end edge, 13··opening locking piece, 14··groove, 1 5··locking hole, 16··relief hole, 20A, 20B··first locking portion, 21··projecting piece, 22··return piece, 28··locking groove, 30A, 30B··second locking portion, 32··bridge portion, 34··insertion hole, 40··first slit, 42··opening / closing area, 45··second slit, 46··inner opening / closing area, M··object, O··opening.

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 to 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 against each other, the first engaging portion and the second engaging portion are engaged with each other, so that an object can be covered with the first cover body and the second cover body. The first cover body is A pair of first slits extending from the first edge in a direction intersecting the first edge; an opening locking portion integrally formed in an opening / closing region sandwiched between the pair of first slits; a latched portion provided on a terminal end side of the first slit, A cover that can partially expose the object by folding the opening and closing area back along the pair of first slits toward the end side of the first slits and engaging the opening engaging portion with the engaged portion.

2. the opening locking portion is an opening locking piece that protrudes in a direction opposite to a direction in which the first end edge is butted against the second end edge, The locked portion is a hole to which the release locking piece can be locked. The cover of claim 1.

3. The opening locking piece has a groove formed between the opening and closing area, 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 release locking piece is inserted into the hole, the groove is locked to the edge of the hole. The cover according to claim 2.

4. The opening and closing area has a step portion protruding toward a front surface side of the first cover body, The opening locking piece is provided on the step portion. The cover according to claim 3.

5. The hole is formed to have a size that allows the step portion to be inserted in the folded-over state of the opening and closing region. The cover according to claim 4.

6. The pair of slits are formed to sandwich the first locking portion, and the first locking portion, which is integrated with the opening and closing region, is also used as the opening locking portion, The engaged portion is a locking hole into which the first locking portion can be inserted and locked when the openable / closable region is folded back toward the end side of the first slit. The cover of claim 1.

7. A first sound absorbing material made of foamed resin is disposed on an inner surface of the first cover body, A pair of second slits are formed on the inside of the opening / closing region in the first sound absorbing material, 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 is 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. When the object is covered by the open / close region, the pair of second slits are covered by the open / close region. A cover according to any one of claims 1 to 6.

8. The inner opening and closing region is fixed to the opening and closing region. The cover according to claim 7.