Packaging iron box with cover opening angle setting
By designing an adjustable arc-shaped lid hook structure, the problem of packaging tin box lids not being able to open at the required angle was solved, realizing packaging tin boxes with adjustable lid opening angles to meet diverse needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGGUAN JINGLI CAN
- Filing Date
- 2020-04-08
- Publication Date
- 2026-05-15
AI Technical Summary
The lids of existing packaging tin boxes typically flip 180°, which cannot meet the needs of items that do not need to be fully opened or that are prone to falling out.
The design incorporates a lid hook structure that connects the lid to the box body via a hinge. The hook has an adjustable arc shape in the middle and is positioned to block the rolled edge of the box body, limiting the opening angle of the lid. Combined with the notch in the blister box and reinforcing ribs, this design ensures stability.
The lid can be adjusted to open at an angle to meet the needs of different consumers and prevent items from falling out.
Smart Images

Figure CN111284877B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a packaging tin can with a set lid opening angle, particularly a packaging tin can with a lid and body connected by a hinge, and especially a packaging tin can with a set lid opening angle. Background Technology
[0002] Packaging tin boxes are generally made of tinplate, manufactured through multiple stamping and assembly processes after blanking. They consist of a lid and a body, connected by a hinge, allowing the lid to be flipped open and the box opened. Current packaging tin boxes typically have lids that flip 180°, fully opening the box and exposing the contents. However, sometimes the contents don't need to be fully opened, or if fully opening the box would cause the contents to fall out, or the customer requires the lid to open only to a certain angle. Therefore, current packaging tin boxes cannot meet these requirements. Summary of the Invention
[0003] The purpose of this invention is to provide a packaging tin box with a set lid opening angle. The lid of this packaging tin box can be opened to a set angle or a certain angle, and the opening angle can be adjusted by the user. This is convenient for businesses or users and can meet the needs of different consumers.
[0004] The present invention provides a packaging tin box with a set lid opening angle, comprising a lid and a box body, wherein the lid and the box body are connected by a hinge; the open end edge of the box body has an inwardly protruding rolled edge; characterized in that a lid hook is fixed inside the lid; the upper end of the lid hook is fixed to the lid, the lower end of the lid hook extends from the lid into the box body, and the middle part of the lid hook is located across the lid and the box body; a hook-stopping device is provided at the bottom end of the lid hook, which can hook onto the rolled edge of the box body after the lid is opened.
[0005] The aforementioned packaging tin box with a set lid opening angle has an inner lid layer inside the lid, and the lid hook extends from the inner lid layer. The inner lid layer and the outer lid layer are rolled together to fix their edges.
[0006] The packaging tin box with the aforementioned lid opening angle setting has an arc-shaped structure in the middle of the lid hook. This arc structure can be adjusted in terms of its curvature, that is, the length of the arc chord.
[0007] The packaging tin box with the aforementioned lid opening angle setting has a bent hook at the bottom of the lid hook.
[0008] The packaging tin box with the above-mentioned lid opening angle setting has a bottom hook stop device for the lid hook as a rolled edge hook stop.
[0009] The packaging tin box with the aforementioned lid opening angle setting has a lid hook with reinforcing ribs.
[0010] The aforementioned packaging tin box with a set lid opening angle has a blister pack inside the box body, and the blister pack has a notch for accommodating the lid hook at the corresponding position of the lid hook.
[0011] This invention relates to a packaging tin box with a specially designed lid opening angle. A hook fixed to the lid prevents the lid from fully opening (180°) by engaging the bottom end of the hook with the rolled edge of the box body when the lid is opened. The hook's center is designed with an arc shape, allowing the chord length to be adjusted by changing the arc, thus altering the lid's opening angle. This design provides convenience for businesses and users, catering to the needs of different consumers. Attached Figure Description
[0012] Figure 1 This is a front view of a packaging tin box embodiment of the present invention, showing the opening angle setting of the box lid.
[0013] Figure 2 for Figure 1 The AA section view is shown.
[0014] Figure 3 for Figure 2 The BB section view is shown.
[0015] Figure 4 for Figure 2 The image shown is a magnified view of the relevant area.
[0016] Figure 5 for Figure 3 The image shown is a magnified view of the relevant area.
[0017] Figure 6 This is a perspective view of a packaging tin box according to an embodiment of the present invention, showing the opening angle setting of the box lid.
[0018] Figure 7 A schematic diagram of the opened lid state of a packaging tin box according to Embodiment 1 of the present invention, which has a set lid opening angle.
[0019] Figure 8 A schematic diagram of a second embodiment of the packaging tin box with a set lid opening angle according to the present invention. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings.
[0021] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7The illustration shows a first embodiment of the packaging tin box with an adjustable opening angle according to the present invention. It includes a lid 1 and a body 2, with a blister pack 3 located inside the body 2. The lid 1 and body 2 are connected by a hinge pin 00. The open edge of the body 2 has an inwardly protruding rolled edge 21. An inner lid layer 11 is located inside the lid 1, and a lid hook 111 extends from this inner lid layer 11. The inner lid layer 11 and the outer lid layer 12 are rolled together at their four edges for fixation. This solves the problem of fixing the lid hook 111 and also enhances the structural strength of the lid. The lid hook 111 includes an upper end 1111, a lower end 1112 extending from the lid into the box body, and a middle part 1113 located between the lid and the box body. A hook-stopping device 112 is provided at the lower end 1112 of the lid hook. This hook-stopping device 112 is a rolled edge hook, but it can also be a bent hook or other shapes, as long as it can hook onto the rolled edge 21 of the box body after the lid 1 is opened. The middle part 1113 of the lid hook has an arc-shaped structure. Since the box components are made of tinplate, the arc of the middle part 1113 can be changed to adjust the chord length, thereby adjusting the opening angle of the lid. A notch 31 for accommodating the lid hook 111 is provided at the corresponding position on the blister box 3. Thus, when the lid 1 and the body 2 are fastened together, that is, when the lid 1 is not open, the lid hook 111 is housed within the notch 31 of the blister box 3. When the lid 1 is opened, the rolled edge hook at the bottom end 1112 of the lid hook engages with the rolled edge 21 of the body, preventing the lid 1 from opening at a certain angle and preventing it from fully opening at 180°. To adjust the opening angle of the lid 1, the curvature of the arc structure in the middle part 1113 of the lid hook can be adjusted to change the chord length. To ensure the structural strength of the middle part 1113 of the lid hook and to ensure that the rolled edge hook at the bottom end 1112 of the lid hook is securely engaged with the rolled edge 21 of the body, a reinforcing rib 113 is provided in the middle part 1113 of the lid hook.
[0022] refer to Figure 8 The image shows a second embodiment of the packaging tin box with an adjustable opening angle according to the present invention. This second embodiment differs from the first embodiment in that it does not include a blister pack 3 inside the box body 2. Without the blister pack 3, the lid hook may sometimes experience difficulty opening and closing due to obstruction or pressure from items inside the box.
[0023] This invention relates to a third embodiment of a packaging tin box with a set opening angle. Unlike the first embodiment, the lid hook 111 is fixed to the lid by welding.
[0024] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.
Claims
1. A tin box with a set opening angle for the lid, comprising a lid and a box body, wherein the lid and the box body are connected by a hinge; the open edge of the box body has an inwardly protruding rolled edge; characterized in that... A lid hook is fixed inside the lid; the upper end of the lid hook is fixed to the lid, the lower end of the lid hook extends from the lid into the box body, and the middle part of the lid hook is located between the lid and the box body of the iron box. A hook-stop device is provided at the bottom of the lid hook, which can hook onto the rolled edge of the box body after the lid is opened; an inner lid layer is provided inside the lid, and the lid hook extends from the inner lid layer. The inner lid layer and the outer lid layer edge are rolled together for edge fixation; the middle part of the lid hook has an arc-shaped structure, and the central angle of the arc can be adjusted.
2. The packaging tin box with a set lid opening angle according to claim 1, characterized in that... The bottom hook of the lid hook is a bent hook.
3. The packaging tin box with a set lid opening angle according to claim 1, characterized in that... The bottom hook stop device of the lid hook is a rolled edge hook stop.
4. The packaging tin box with a set lid opening angle according to claim 1, characterized in that... The lid hook is equipped with reinforcing ribs.
5. The packaging tin box with a set lid opening angle according to claim 1, characterized in that... A blister pack is provided inside the box body, and a notch for accommodating the lid hook is provided at the corresponding position of the blister pack and the lid hook.