Container lid and method for assembling container lid

Abstract

To provide a container lid body that enables easy assembling of a slide lid equipped with a knob, and a method for assembling a container lid body.SOLUTION: A lid body 300 of a container comprises an upper lid 100 with an opening 120 and a slide lid 200 with a knob 220. The upper lid 100 is provided with a rail 130 on which the slide lid 200 is slidably mounted to open and close the opening 120 of the upper lid 100. And the rail 130 of the upper lid 100 is provided with a notch 140 through which the slide lid 200 can be inserted, and at least a part of the notch 140 of the rail 130 of the top lid 100 overlaps the opening 120 of the top lid 100 in the vertical direction.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a lid for a container and a method for assembling a lid for a container. [Background technology]

[0002] Various types of container lids have been known for attachment to containers for storing garbage, small items, etc. For example, the container lid disclosed in Patent Document 1 includes a guide groove attached around the opening of the container and a sliding lid (opening / closing lid) that is slidably attached along the guide groove. When attaching the sliding lid to the guide groove, the sliding lid is bent and inserted into the guide groove. In particular, because the sliding lid has a knob, a large force is required to bend the sliding lid. This can lead to deformation or damage to the sliding lid. Furthermore, attaching the sliding lid to the guide groove is laborious and difficult to assemble. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2010-143703 Summary of the Invention [Problem to be solved by the invention]

[0004] In view of the above problems, the present invention provides a container lid to which a slide lid having a grip portion can be easily attached, and a method for assembling the container lid. [Means for solving the problem]

[0005] In order to solve the above problems, the present invention provides a container lid body comprising an upper lid having an opening and a slide lid having a grip portion, The back side of the slide cover is slidably attached to open and close the opening of the top cover, Extends in a straight line from the front to the rear A rail is provided, and the rail of the upper cover Between the front end and the rear end of is provided with a notch through which the sliding lid can be inserted, and at least a portion of the notch in the rail of the top lid overlaps vertically with the opening of the top lid, and the rail of the top lid is configured so that the front edge of the sliding lid can be inserted from the notch toward the front part of the rail and can be inserted up to the rear edge of the sliding lid, and in a cross section at the center of the sliding lid, the front edge located at the center of the sliding lid to the rear edge can move continuously toward the front part of the rail while passing through the notch.

[0006] According to the above feature, when assembling the sliding lid to the top lid, the sliding lid can be easily attached by inserting the sliding lid into the rail through the notch in the rail while positioning the knob of the sliding lid outside the opening of the top lid. Therefore, unlike conventional devices, it is not necessary to bend the area near the knob, which has high rigidity, in order to insert the sliding lid into the rail, and the workload of attaching the sliding lid to the rail is reduced.

[0007] Furthermore, the lid for a container according to claim 2 of the present invention is characterized in that at least a part of the notch in the rail of the top lid overlaps in the vertical direction with the edge of the opening of the top lid.

[0008] According to the above feature, when assembling the sliding lid to the top lid, the knob portion of the sliding lid can be abutted against the edge of the opening to position the knob portion of the sliding lid, making it easy to attach the sliding lid to the rail through the cutout portion.

[0009] Furthermore, the lid body of the container according to claim 3 of the present invention is characterized in that the portion of the rail of the top lid that extends from the notch in the rail of the top lid in the direction of closing the sliding lid is formed thicker than the portion that extends from the notch in the rail of the top lid in the direction of opening the sliding lid.

[0010] According to the above feature, when the opening of the top cover is closed by the sliding cover, a gap is less likely to be formed between the opening and the closed part of the sliding cover. Also, the strength of the rail can be improved.

[0011] Furthermore, a method for assembling a lid body for a container according to claim 5 of the present invention includes a top lid having an opening, a sliding lid having a knob portion, and the sliding lid being slidably attached so as to open and close the opening of the top lid; Extends in a straight line from the front to the rear A method for assembling a lid body of a container having a rail, comprising: Back side rail Between the front end and the rear end of the front edge of the sliding lid is inserted toward the front part of the rail through a notch at least a part of which overlaps vertically with the opening of the top lid, and is then inserted all the way to the rear edge of the sliding lid, thereby attaching the sliding lid to the rail of the top lid, and during the attachment process, the knob part of the sliding lid is positioned within the opening of the top lid, and during the attachment process, in the central cross section of the sliding lid, the front edge located at the center of the sliding lid moves continuously from the rear edge to the front part of the rail while passing through the notch.

[0012] According to the above features, when attaching the sliding cover to the rail, the knob of the sliding cover is positioned within the opening, and the sliding cover can be easily inserted into the rail. Therefore, unlike conventional methods, there is no need to bend the area around the knob, which has high rigidity, in order to insert the sliding cover into the rail, and the workload of attaching the sliding cover to the rail is reduced. [Effects of the Invention]

[0013] According to the container lid and the method for assembling the container lid of the present invention, a slide lid having a grip portion can be easily assembled. [Brief explanation of the drawings]

[0014] [Figure 1]1A is a plan view of the upper cover of the cover body according to the first embodiment of the present invention, FIG. 1B is a bottom view of the upper cover, and FIG. 1C is a cross-sectional view taken along the line AA. [Figure 2] 2(a) is a BB cross-sectional view shown in FIG. 1(a), (b) is an AA cross-sectional view shown in FIG. 1(a), which is an enlarged cross-sectional view of the area around the cutout, and (c) is a cross-sectional view showing the arrangement of the mold in FIG. 2(b). [Figure 3] 1A is a plan view of a sliding cover of a cover body according to a first embodiment of the present invention, FIG. 1B is a bottom view of the sliding cover, and FIG. 1C is a cross-sectional view taken along line CC. [Figure 4] 1(a) to 1(c) are enlarged cross-sectional views of the periphery of the opening of the upper cover, illustrating a method for assembling the cover according to the first embodiment of the present invention. [Figure 5] 5(a) to 5(c) are enlarged cross-sectional views of the periphery of the opening of the top cover, illustrating another method of assembling the cover according to the first embodiment of the present invention. [Figure 6] 1 is an exploded perspective view showing a state in which a lid according to a first embodiment of the present invention is attached to a container and used. [Figure 7] (a) is an enlarged cross-sectional view of the area around the opening, showing the state in which the sliding cover is attached to the rail of the top cover of the cover body according to embodiment 2 of the present invention; (b) is an enlarged cross-sectional view of the area around the opening, showing the state in which the sliding cover of the cover body according to embodiment 3 of the present invention is about to be attached to the rail. [Explanation of symbols]

[0015] 100 Top lid 120 opening 130 Rail 140 Notch 200 Slide Lid 220 Knob 300 Lid 400 containers DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, each embodiment of the present invention will be described with reference to the drawings.

[0017] <Embodiment 1> First, FIG. 1 shows the top cover 100 of the cover 300 according to the first embodiment of the present invention. The cover 300 includes the top cover 100 and a sliding cover 200, which will be described later. FIG. 1(a) is a plan view of the top cover 100, FIG. 1(b) is a bottom view of the top cover 100, FIG. 1(c) is an AA cross-sectional view, FIG. 2(a) is a BB cross-sectional view of FIG. 1(a), FIG. 2(b) is an enlarged cross-sectional view of the AA cross-sectional view of FIG. 1(a) showing the periphery of the cutout 140, and FIG. 2(c) is a cross-sectional view showing the arrangement of each mold in FIG. 2(b). Each mold is shown by a virtual line.

[0018] As shown in Fig. 1, the top cover 100 is a flat plate-like member made entirely of synthetic resin, and includes a closing portion 110 that closes an opening 410 of a container 400 (described later), and an opening 120 that is opened and closed by a sliding cover 200 (described later). The opening 120 is configured to be surrounded by side edges 111 on both sides extending from the closing portion 110, and a front edge 112 that connects the side edges 111 together. In addition, a front edge 112 is provided on the back side of the top cover 100 so as to go around the periphery of the top cover 100. A mating protrusion 101 is formed, and the mating protrusion 101 is configured to fit inside an edge 411 of an opening 410 of a container 400, which will be described later. In addition, a protrusion 121 is formed on the back side of the opening 120 along the outer periphery of the opening 120, reinforcing an edge 122 of the opening 120 to improve its strength.

[0019] 1(b), (c), and 2(a), rails 130 are formed on the back surface of the top cover 100 at positions adjacent to both sides of the opening 120, extending linearly. The rails 130 are formed in a roughly U-shape on the back surface of the top cover 100, as shown in FIG. 2(a), so that the sliding cover 200 (described later) can be inserted and attached, and include a top wall 131, a side wall 132, and a bottom wall 133. The sliding cover 200 is inserted into a rail groove 134 surrounded by the top wall 131, the side wall 132, and the bottom wall 133 of the rails 130, so that the sliding cover 200 can slide along the rail groove 134. The distance L1 between the rails 130 on both sides is set so that the side edges 213 on both sides of the sliding lid 200 can be attached to each rail 130, and the distance L1 between the rails 130 on both sides is greater than the distance L2 between the side edges 213 on both sides of the sliding lid 200. A slight clearance is provided between the sliding lid 200 and the rails 130 so that the sliding lid 200 can slide smoothly on the rails 130, and the width L3 of the clearance is obtained by subtracting the distance L2 between the side edges 213 on both sides of the sliding lid 200 from the distance L1 between the rails 130 on both sides, i.e., L3 = L1 - L2. The thickness of the rail 130 is greater than the thickness of a flat plate-like portion of the top lid 100 (e.g., the closed portion 110). Furthermore, the thickness of the fitting protrusion 101 is thinner than the thickness of the flat plate-like portion of the top cover 100 (for example, the closed portion 110).

[0020] A notch 140 is formed in a portion of the rail 130. This notch 140 is formed by cutting out the bottom wall 133 of the rail 130 and is configured to allow the sliding lid 200 to pass through. The rail 130 is divided in the front-rear direction by the notch 140, and includes a front portion 135 (left side in the drawing) that extends forward, i.e., from the notch 140 in the direction to close the sliding lid 200, and a rear portion 136 (right side in the drawing) that extends backward, i.e., from the notch 140 in the direction to open the sliding lid 200. As shown in FIG. 2(b), a tip 137 of the front portion 135 is smoothly inclined downward, making it easier to insert the sliding lid 200 through the notch 140. A tip 138 of the rear portion 136 is also smoothly inclined downward.

[0021] 1(c) and 2(b), a front side 141 that is a part of the cutout portion 140 overlaps the opening 120 in the vertical direction. More specifically, a portion of the cutout portion 140 near the middle between the front side 141 and the rear side 142 overlaps the end 122 of the opening 120 in the vertical direction. Meanwhile, the rear side 142 that is a part of the cutout portion 140 overlaps the closed portion 110 in the vertical direction. Note that, as shown in FIG. 1(b), the cutout portion 140 is provided on the rear end 122 side of the opening 120, but this is not limiting, and the cutout portion 140 may be provided on the front end 122 side of the opening 120 as long as a portion of the cutout portion 140 overlaps the opening 120 in the vertical direction.

[0022] 1(b) and 2(a), a convex reinforcing rib 113 is formed on the back surface of the side edge portion 111 so as to extend laterally from the side wall 132 of the rail 130, reinforcing the rail 130 so as not to tip over laterally. Also, a bearing 102 for connecting and fixing to the container 400 is formed on one side of the back surface of the top lid 100, in a position adjacent to the fitting convex portion 101. Note that, although both ends of the reinforcing rib 113 are connected to the fitting convex portion 101 and the rail 130, respectively, this is not limiting, and the reinforcing rib 113 may be in a form that is not connected to the fitting convex portion 101 or the rail 130, i.e., a so-called spatted rib, as long as it can reinforce the periphery of the rail 130.

[0023] 1(b), at both the front and rear end portions 122 of the opening 120, the vicinity of the center of the end portion 122 serves as a gate position, and the molten synthetic resin is poured into the mold. Also, as shown in FIG. 2(c), the periphery of the cutout portion 140 is injection molded using a plurality of molds. Specifically, a main mold (fixed side) P1 that molds the opening 120 and the closed portion 110 of the top cover 100, a movable side mold P2 that molds the outside of the cutout portion 140 and the rail 130, a movable side mold P3 that molds the inside of the front portion 135 of the rail 130, and a movable side mold P4 that molds the inside of the rear portion 136 of the rail 130 are used. 2(c), by configuring a portion of the cutout 140 to overlap with the opening 120 in the vertical direction, the movable mold P2 that forms the cutout 140 is arranged so as to be shifted forward and backward relative to the main mold (fixed side) P1 that forms the opening 120, and the end P2a or end P2b of the mold P2 is not aligned vertically with the end P1a of the mold P1, making it less likely that burrs will occur around the end 122 of the opening 120. If the end P2a or end P2b of the mold P2 were aligned vertically with the end P1a of the mold P1, burrs would be more likely to occur around the end 122 of the opening 120.

[0024] 2(b) and 2(c), a thin, straight line (protrusion) G1 extending vertically is formed in the rail 130 during injection molding at the boundary (mold dividing position) between the end P3a of the movable-side mold P3 that molds the front portion 135 of the rail 130 and the end P2b of the mold P2 that molds the notch 140. Similarly, a thin, straight line (protrusion) G3 extending vertically is formed in the boundary (mold dividing position) between the end P4a of the movable-side mold P4 that molds the rear portion 136 of the rail 130 and the end P2a of the mold P2 that molds the notch 140 during injection molding.

[0025] 2(c), the boundary portion (mold dividing position) between the lower end P3b of the movable mold P3 that molds the inside of the front portion 135 of the rail 130 and the upper end P2c of the movable mold P2 that molds the outside of the front portion 135 of the rail 130 is located at the center in the thickness direction of the front portion 135 of the rail 130, so that during injection molding, a thin line (protrusion) G2 is formed in the center in the thickness direction of the front portion 135, as shown in FIG. 2(b). Furthermore, on the tip 137 side of the front portion 135, the boundary portion (mold dividing position) between the lower end P3b of the mold P3 and the upper end P2c of the mold P2 is also inclined along the slope of the tip 137. In this way, the boundary portion (the dividing position of the mold) between the lower end P3b of the mold P3 and the upper end P2c of the mold P2 is located at the center in the thickness direction of the front portion 135, so that the boundary portion (the dividing position of the mold) is not exposed on the inner surface of the front portion 135 of the rail 130, and no burrs are generated on the inner surface of the rail 130. Therefore, the sliding lid 200 that slides inside the rail 130 is not damaged by burrs.

[0026] 2(c), the boundary portion (mold dividing position) between the lower end P4b of the movable mold P4 that molds the inside of the rear portion 136 of the rail 130 and the upper end P2d of the movable mold P2 that molds the outside of the rear portion 136 of the rail 130 is located at the center in the thickness direction of the rear portion 136 of the rail 130, so that during injection molding, as shown in FIG. 2(b), a thin line (protrusion) G4 is formed in the center in the thickness direction of the rear portion 136. Furthermore, on the tip 138 side of the rear portion 136, the boundary portion (mold dividing position) between the lower end P4b of the mold P4 and the upper end P2d of the mold P2 is also inclined along the slope of the tip 138. In this way, the boundary portion (the dividing position of the mold) between the lower end P4b of the mold P4 and the upper end P2d of the mold P2 is located at the center in the thickness direction of the rear portion 136, so that the boundary portion (the dividing position of the mold) is not exposed on the inner surface of the rear portion 136 of the rail 130, and no burrs are generated on the inner surface of the rail 130. Therefore, the sliding lid 200 that slides inside the rail 130 is not damaged by burrs.

[0027] Next, Fig. 3 shows the sliding lid 200 of the lid body 300 according to the first embodiment of the present invention. Fig. 3(a) is a plan view of the sliding lid 200, Fig. 3(b) is a bottom view of the sliding lid 200, and Fig. 3(c) is a cross-sectional view taken along CC.

[0028] As shown in Fig. 3, the sliding cover 200 is a flat, plate-like member made entirely of synthetic resin, and includes a flat closing portion 210 that closes the opening 120 of the top cover 100 shown in Fig. 1, and a gripping portion 220 that protrudes upward from the top surface 211 of the closing portion 210 on the front edge 215 side of the closing portion 210. A peripheral rib 214 is formed on the bottom surface 212 of the closing portion 210 so as to surround the front edge 215, side edge 213, and rear edge 216 in the circumferential direction of the closing portion 210, and the peripheral rib 214 reinforces the outer periphery of the closing portion 210. In addition, the side edge 213 of the closing portion 210 is inserted into and attached to the rail 130 of the top cover 100, as will be described later. Furthermore, the knob 220, which allows the user to easily slide the sliding lid 200 by pinching it with their fingers, extends linearly toward both side edges 213. The length of the knob 220 in the longitudinal direction is smaller than the width of the opening 120 in the top lid 100, so that the knob 220 does not interfere with the opening 120 when the opening 120 in the top lid 100 is opened or closed by the sliding lid 200, as will be described later.

[0029] Next, a method for assembling the lid body 300 according to the first embodiment of the present invention will be described with reference to Fig. 4. Figs. 4(a) to 4(c) are enlarged cross-sectional views of the periphery of the opening 120, showing how the sliding lid 200 is assembled to the rail 130 of the top lid 100 via the cutout 140, with the top lid 100 shown by the AA cross section in Fig. 1 and the sliding lid 200 shown by the CC cross section in Fig. 3.

[0030] First, in the conventional assembly method, the sliding cover 200 shown in Fig. 3 is bent in order to insert both side edges 213 of the sliding cover 200 into the rails 130 on both sides of the opening 120 of the top cover 100 shown in Fig. 1. However, because the sliding cover 200 has the knob 220, a large force is required to bend the area around the highly rigid knob 220. As a result, the workload of attaching the sliding cover 200 to the rails 130 is large, making assembly difficult.

[0031] 4(a), first, in the lid body 300 according to the first embodiment of the present invention, the front edge 215 side of the sliding lid 200 is inserted through the notch 140 of the rail 130 of the top lid 100 toward the front part 135 of the rail 130. Since the front side 141, which is a part of the notch 140, overlaps with the opening 120 in the vertical direction, the knob part 220 of the sliding lid 200 is positioned outside the opening 120.

[0032] At this time, because the notch 140 and the end 122 of the opening 120 overlap in the vertical direction, the knob 220 of the sliding lid 200 can be positioned by abutting it against the end 122 of the opening 120, making it easy to attach the sliding lid 200 to the rail 130 through the notch 140. Note that the sliding lid 200 is provided with an outer peripheral rib 214 that protrudes downward, which narrows the space X1 for inserting the sliding lid 200 from the notch 140 into the front portion 135 of the rail 130. However, because the tip 137 of the front portion 135 adjacent to the notch 140 is inclined so as to curve downward, the space X1 can be widened, making it easier to insert the sliding lid 200 from the notch 140 into the rail 130.

[0033] Next, as shown in FIG. 4(b), when the sliding cover 200 is pushed toward the opening 120, the side edge 213 of the sliding cover 200 is inserted into the rail groove 134 between the top wall 131 and the bottom wall 133 of the rail 130. Then, since the tip 137 of the front part 135 of the rail 130 is inclined, the side edge 213 of the sliding cover 200 rides smoothly along the tip 137. The slide cover 200 can be easily inserted into the rail 130.

[0034] Next, the sliding lid 200 is pushed toward the opening 120, and when the sliding lid 200 is fully inserted into and attached to the rail 130, the state shown in FIG. 4(c) is reached. As shown in FIG. 4(c), the opening 120 of the top lid 100 is closed by the closing portion 210 of the sliding lid 200. Furthermore, the tab portion 220 abuts against the front end 122 of the opening 120, preventing the sliding lid 200 from sliding further forward. As will be described later, in order to prevent the sliding lid 200 from accidentally opening when the lid body 300 attached to the container 400 is opened or closed, a recess may be provided in the front edge portion 215 of the sliding lid 200 and a protrusion may be provided in the front end 122 of the opening 120, and the sliding lid 200 may be fixed by engaging the two. In addition, the sliding cover 200 may be configured to ride over a protrusion provided on the rail 130, so that the sliding cover 200 is pressed against the rear side of the opening 120, preventing the sliding cover 200 from opening accidentally.

[0035] Furthermore, when opening the opening 120, the user pinches the knob portion 220 with their fingers and slides the sliding lid 200 rearward on the rail 130. At this time, the tip 138 of the rear portion 136 of the rail 130 is inclined downward, preventing the outer peripheral rib 214 of the rear edge portion 216 of the sliding lid 200 from getting caught on the tip 138, allowing the sliding lid 200 to slide smoothly rearward. Furthermore, even when sliding the sliding lid 200 forward from a rearward sliding state to close the opening 120, the tip 137 of the front portion 135 of the rail 130 is inclined, preventing the outer peripheral rib 214 of the front edge portion 215 of the sliding lid 200 from getting caught on the tip 137, allowing the sliding lid 200 to slide smoothly forward.

[0036] 4(a), when assembling the sliding lid 200 to the top lid 100, the sliding lid 200 can be easily attached by inserting it into the rail 130 through the notch 140 of the rail 130 while positioning the knob 220 of the sliding lid 200 outside the opening 120 of the top lid 100. Therefore, unlike the conventional method, there is no need to bend the area near the knob 220, which has high rigidity, in order to insert the sliding lid 200 into the rail 130, and the workload of attaching the sliding lid 200 to the rail 130 is reduced.

[0037] 4(a) to 4(c), when starting to attach the sliding lid 200 to the rail 130 as shown in FIG. 4(a), the sliding lid 200 can be easily attached by inserting it into the rail 130 while positioning the knob 220 of the sliding lid 200 inside the opening 120. Therefore, unlike the conventional method, there is no need to bend the area near the knob 220, which has high rigidity, in order to insert the sliding lid 200 into the rail 130, and the workload of attaching the sliding lid 200 to the rail 130 is reduced.

[0038] Furthermore, during the installation process from the start of installation of the sliding lid 200 on the rail 130 shown in Figure 4(a) to the end of installation of the sliding lid 200 on the rail 130 shown in Figure 4(c), the knob 220 of the sliding lid 200 can always be positioned outside the opening 120 of the top lid 100. Therefore, during the installation process of the sliding lid 200 on the rail 130, the knob 220 does not interfere with the opening 120 or other parts and get in the way.

[0039] Next, another method of assembling the lid body 300 of the present invention will be described with reference to Figure 5. Figures 5(a) to 5(c) are enlarged cross-sectional views of the area around the rail 130, showing how the sliding lid 200 is assembled to the rail 130 of the top lid 100 via the notch 140. The top cover 100 is shown in cross section AA in FIG. 1, and the slide cover 200 is shown in cross section CC in FIG.

[0040] First, as shown in FIG. 5(a), the rear edge 216 of the sliding lid 200 is inserted through the cutout 140 of the rail 130 of the top lid 100 toward the rear portion 136 of the rail 130. Note that because the sliding lid 200 is provided with a peripheral rib 214 that protrudes downward, the space X2 for inserting the sliding lid 200 from the cutout 140 to the rear portion 136 of the rail 130 is narrow. However, because the tip 138 of the rear portion 136 of the rail 130 is inclined so as to curve downward, the space X2 can be widened, making it easier to insert the sliding lid 200 from the cutout 140 into the rail 130.

[0041] Next, as shown in Figure 5(b), when the sliding lid 200 is pushed toward the closing portion 110 of the top lid 100, the side edge 213 of the sliding lid 200 is inserted into the rear portion 136 of the rail 130. At this time, since the tip 138 of the rear portion 136 is inclined, the side edge 213 of the sliding lid 200 can smoothly ride up along the tip 138, and the side edge 213 of the sliding lid 200 can be easily inserted into the rail 130. Note that the rear edge 216 side of the sliding lid 200 abuts against the flat back surface (without ribs, etc.) of the closing portion 110 of the top lid 100, and is slightly elastically deformed downward.

[0042] Next, the sliding lid 200 is pushed toward the closed portion 110, and as shown in FIG. 5(c), the sliding lid 200 is inserted all the way into the rail 130. At this time, because the front side 141, which is a part of the cutout portion 140, overlaps the opening 120 in the vertical direction, the sliding lid 200 can be inserted completely into the rail 130 while the knob portion 220 is positioned outside the opening 120. Note that the knob portion 220 abuts against the end 122 of the opening 120, preventing the sliding lid 200 from sliding further backward.

[0043] 5(a) to 5(c), when the sliding lid 200 is finally attached to the rail 130 as shown in FIG. 5(c), the sliding lid 200 can be easily attached by inserting it all the way onto the rail 130 while positioning the knob 220 of the sliding lid 200 inside the opening 120. Therefore, unlike the conventional method, there is no need to bend the area near the knob 220, which has high rigidity, in order to insert the sliding lid 200 onto the rail 130, and the workload of attaching the sliding lid 200 to the rail 130 is reduced.

[0044] Next, a usage mode of the lid 300 of the present invention will be described with reference to Fig. 6. Fig. 6 is an exploded perspective view showing the state in which the lid 300 is attached to the container 400 and used.

[0045] 6, container 400, to which lid 300 is attached, is entirely made of synthetic resin and includes a bottom wall 401, a front wall 402, a side wall 403, and a rear wall 404 that rise upward from the periphery of bottom wall 401. The interior of container 400 forms a storage space 430, and an opening 410 on the upper end 405 side of container 400 and storage space 430 are in communication with each other.

[0046] Furthermore, a shaft 420 is provided on the outside of the opening 410 of the container 400, and the bearing 102 of the top cover 100 of the lid 300 can be fitted onto the shaft 420 to attach the container. The lid 300 can rotate around the shaft 420 to open and close the opening 410, and for example, by opening the lid 300, it is possible to store trash, small items, etc. in the storage space 430 through the opening 410, or to remove trash or small items stored in the storage space 430.

[0047] Furthermore, when the opening 410 of the container 400 is closed by the lid 300, the fitting protrusion 101 of the lid 300 fits into the inside of the frame-shaped edge 411 of the opening 410. Therefore, the lid 300 is securely fixed to the opening 410 of the container 400, and the lid 300 can close the opening 410 without any gaps.

[0048] Furthermore, when storing or removing relatively small trash or small items while the lid 300 is closing the opening 410 of the container 400, the sliding lid 200 is slid to open the opening 120 of the top lid 100. Then, through the opened opening 120, trash or small items can be stored in or removed from the storage space 430 of the container 400. As shown in FIG. 6, the container 400 has a substantially rectangular parallelepiped shape, but is not limited to this, and the container 400 may have any shape as long as the lid 300 can be attached.

[0049] <Embodiment 2> Next, a lid 300A according to a second embodiment of the present invention is shown in Figure 7(a). The lid 300A according to the second embodiment is different from the lid 300 according to the first embodiment shown in Figures 1 to 6 only in the thickness of the front portion 135A of the rail 130A, and other configurations are basically the same as the lid 300 according to the first embodiment, so detailed description will be omitted. Figure 7(a) is an enlarged cross-sectional view of the periphery of the opening 120A, showing the state in which the sliding lid 200A is attached to the rail 130A of the top lid 100A, with the top lid 100A shown in the AA cross section similar to Figure 1, and the sliding lid 200A shown in the CC cross section similar to Figure 3.

[0050] As shown in Figure 7(a), in the rail 130A of the top cover 100A of the cover body 300A, the thickness H1 of the front portion 135A extending from the cutout portion 140A in the direction of closing the sliding cover 200A is formed thicker than the thickness H2 of the rear portion 136A extending from the cutout portion 140A in the direction of closing the sliding cover 200A. Therefore, when the opening 120A of the top cover 100A is closed by the sliding cover 200A, a gap is less likely to form between the opening 120A and the closed portion 210A of the sliding cover 200A. This also improves the strength of the rail 130A.

[0051] As shown in FIG. 7(a), when the opening 120A is closed by the sliding lid 200A, the width of the gap between the top lid 100A and the sliding lid 200A on the rail 130A is L4. When the opening 120A is closed by the sliding lid 200A, the width of the gap between the center of the top lid 100A and the rear side of the sliding lid 200A is L5. The widths decrease in order of the width L5 of the gap between the center of the top lid 100A and the rear side of the sliding lid 200A, the width L4 of the gap between the top lid 100A and the sliding lid 200A on the rail 130A, and the width L3 of the clearance between the sliding lid 200A and the rail 130A. In other words, the relationship is width L3 < width L4 < width L5.

[0052] In the front portion 135A of the rail 130A shown in FIG. 7(a), the thickness H1 of the portion extending from the tip 137A adjacent to the notch 140A to approximately 50 mm (millimeters) is thick. However, the present invention is not limited to this, and the thickness H1 of the portion extending from the tip 137A to any desired length may be thickened. Furthermore, the present invention is not limited to thickening the portion extending from the tip 137A to any desired length. Any desired portion of the front portion 135A of the rail 130A may be partially thickened, for example, by approximately 30 mm or approximately 50 mm. Furthermore, the thickened portion of the front portion 135A of the rail 130A may not be located adjacent to the notch 140A, but may be located away from the notch 140A. Furthermore, the present invention is not limited to thickening any desired portion. One or more ribs or protrusions may be provided at any desired portion of the front portion 135A of the rail 130A. Furthermore, the thickness H1 of the front portion 135A and the thickness H2 of the rear portion 136A may be the same thickness.

[0053] <Embodiment 3> Next, a lid 300B according to a third embodiment of the present invention is shown in Fig. 7(b). The lid 300B according to the third embodiment is the same as the lid 300 according to the first embodiment shown in Figs. 1 to 6 except for the cutout portion. 7B is an enlarged cross-sectional view of the area around the opening 120B, showing the state in which the sliding lid 200B has just begun to be attached to the rail 130B, with the top lid 100B shown in the AA cross section as in FIG. 1, and the sliding lid 200B shown in the CC cross section as in FIG. 3.

[0054] As shown in FIG. 7(b), the notch 140B of the rail 130B is configured so that the entire notch 140B overlaps the opening 120B in the vertical direction. Therefore, when assembling the sliding lid 200B to the top lid 100B, the sliding lid 200B can be easily attached by positioning the knob 220B of the sliding lid 200B outside the opening 120B of the top lid 100B and inserting the sliding lid 200B into the rail 130B from the front edge 215B side of the sliding lid 200B via the notch 140B. Therefore, unlike conventional methods, there is no need to bend the area near the highly rigid knob 220B to insert the sliding lid 200B into the rail 130B, reducing the workload of attaching the sliding lid 200B to the rail 130B. Furthermore, by moving the position of the notch 140B to the front side of the rail 130B, the length by which the sliding lid 200B can be inserted from the notch 140B into the rail 130B is shortened. Therefore, to ensure that the sliding lid 200B can be inserted into the rail 130B up to the rear edge 216B, the length from the knob 220B to the rear edge 216B of the sliding lid 200B is shortened. As a result, when the opening 120B is closed with the sliding lid 200B, a gap is created between the opening 120B and the sliding lid 200B due to the shortened length from the knob 220B to the rear edge 216B of the sliding lid 200B. Therefore, the length of the front edge 215B side of the sliding lid 200B is extended to prevent a gap from being created between the opening 120B and the sliding lid 200B.

[0055] Furthermore, as with the assembly method described in Figure 5, even when the sliding lid 200B is inserted into the rail 130B from the rear edge 216B side of the sliding lid 200B through the cutout 140B and attached, the entire cutout 140B overlaps the opening 120B in the vertical direction, so when the installation of the sliding lid 200B is completed, the gripping portion 220B of the sliding lid 200B can be positioned outside the opening 120B and the sliding lid 200B can be inserted all the way into the rail 130B to easily attach it.

[0056] The lid of the container of the present invention is not limited to the above examples, and various modifications and combinations are possible within the scope of the claims and the scope of the embodiments, and these modifications and combinations are also included in the scope of rights.

Claims

1. A lid for a container, a top cover having an opening; A sliding lid having a knob portion, a rail extending linearly from the front end to the rear end of the top cover, the rail being slidably attached to the back surface of the top cover so as to open and close the opening of the top cover; a notch through which the slide cover can be inserted is provided between the front end and the rear end of the rail of the top cover; At least a portion of the cutout of the rail of the top cover overlaps with the opening of the top cover in the vertical direction, The rail of the upper cover is configured so that the front edge of the sliding cover can be inserted from the notch toward the front portion of the rail and can be inserted up to the rear edge of the sliding cover, A container lid body characterized in that, in a cross section at the center of the sliding lid, the front edge portion located at the center of the sliding lid and the rear edge portion are configured to be able to move continuously toward the front portion of the rail while passing through the cutout portion.

2. 2. The container lid according to claim 1, wherein at least a portion of the notch in the rail of the top lid overlaps with an edge of the opening of the top lid in the vertical direction.

3. A container lid body as described in claim 1 or 2, characterized in that the portion of the rail of the top lid that extends from the notch in the rail of the top lid in the direction of closing the sliding lid is formed to be thicker than the portion that extends from the notch in the rail of the top lid in the direction of opening the sliding lid.

4. 4. The lid for a container according to claim 1, wherein the sliding lid has a rectangular shape with its side edges linear from the front edge to the rear edge.

5. A method for assembling a lid body of a container including a top lid having an opening, a sliding lid having a knob, and a rail extending linearly from a front end to a rear end, the sliding lid being slidably attached so as to open and close the opening of the top lid, the method comprising: a notch provided between the front end and the rear end of the rail on the back surface of the top cover, at least a portion of which overlaps vertically with the opening of the top cover, and a front edge of the sliding cover is inserted toward the front portion of the rail and through to the rear edge of the sliding cover, thereby attaching the sliding cover to the rail of the top cover, and during the attachment process, a knob portion of the sliding cover is positioned within the opening of the top cover, A method for assembling a container lid, characterized in that during the installation process, in the central cross section of the sliding lid, the front edge portion located in the center of the sliding lid moves continuously from the front edge portion to the rear edge portion toward the front part of the rail while passing through the cutout portion.

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