Picture frame
The frame design simplifies assembly and disassembly by using a base plate with recesses and locking pieces, ensuring easy exhibit replacement and promoting recyclability.
Patent Information
- Application Number
- JP2024060444
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-10-16
AI Technical Summary
Conventional picture frames are complicated to assemble and require disassembly for exhibit replacement, and they lack recyclability due to the use of multiple components.
A frame design featuring a base plate with recesses and a frame body with locking pieces that overlap and connect via frictional force, allowing easy attachment and detachment without adhesives, enabling reuse and recycling.
The frame allows easy exhibit replacement and enhances recyclability by eliminating the need for adhesives, facilitating repeated use and eco-friendly disposal.
Smart Images

Figure 2025158021000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a picture frame. [Background technology]
[0002] One type of cardboard frame (art frame) for displaying photographs or pictures has a rectangular base board with side panels attached to each edge, and each side panel is bent into a cylindrical shape to create a frame on the base board (see, for example, Patent Document 1). In the above-mentioned picture frame, the exhibit, such as a photograph or painting, is placed on a base plate, and then the frame body is assembled, with the edge of the exhibit being sandwiched and held between the base plate and the frame body. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent Publication No. 2021-37215 Summary of the Invention [Problem to be solved by the invention]
[0004] In the conventional picture frames described above, the task of assembling multiple side panels into a cylindrical shape is complicated, and when changing exhibits, the frame body must be opened, the exhibit replaced, and then the frame body must be reassembled.
[0005] To solve the above-mentioned problems, and to provide a frame which can easily hold exhibits such as photographs and pictures, can be used repeatedly by replacing exhibits, and can be easily recycled or disposed of. [Means for solving the problem]
[0006] In order to solve the above problems, the present invention provides a frame comprising a base plate and an annular frame body, wherein a recess is formed on the outer edge of the base plate and a locking piece is provided continuously on the outer edge of the frame body. With the frame body overlapped on the front surface of the base plate, the locking piece is folded back toward the rear of the frame body and fitted into the recess in the base plate, thereby connecting the base plate and the frame body.
[0007] In the frame of the present invention, an exhibit such as a photograph or painting is placed on the front of the base plate, and the frame body is placed on the front of the exhibit, and the locking piece of the frame body is fitted into the recess in the base plate, so that the base plate and the frame body can be easily connected to hold the exhibit. In the frame of the present invention, when the base plate and frame body are connected, the locking piece can be removed from the recess and the base plate and frame body can be separated, allowing the exhibit to be easily replaced.
[0008] In the frame of the present invention, the connection between the recess and the locking piece is maintained by the frictional force generated at the contact point between the inner edge of the recess and the outer edge of the locking piece. With this configuration, the locking piece can be easily attached and detached from the recess, so the base plate and the frame can be easily attached and disassembled, allowing the frame to be used repeatedly.
[0009] In the frame of the present invention, there is no need to use adhesive materials such as glue, stickers, magnets, or adhesive tape to connect the base plate and the frame body, meaning that the frame of the present invention can be made of only a single material, making it easy to recycle or dispose of. If the base plate and the frame are made of cardboard, the recyclability of the frame can be improved.
[0010] In the above-mentioned frame, it is preferable that the inner end of the recessed portion is wider than the outer end, the tip of the locking piece is wider than the base end, and the tip of the locking piece is fitted into the inner end of the recessed portion.
[0011] In this way, the contact area between the recess and the locking piece becomes larger, the frictional force between the recess and the locking piece increases, and the tip of the locking piece catches on the edge of the inner end of the recess, making it difficult for the locking piece to come off the recess.
[0012] In the frame described above, it is preferable that the frame body and the locking piece are connected via a folding line, so that the locking piece can be easily bent relative to the frame body. Furthermore, if the fold line is a half-cut line formed on the surface of the front side of the boundary between the frame body and the locking piece, the locking piece can be folded neatly against the frame body, improving the appearance of the frame.
[0013] It is preferable that the base plate of the frame has a finger hook portion that communicates with the recess portion, so that when removing the frame body from the base plate, the user can insert a finger into the finger hook portion and easily pull out the locking piece from the recess portion. [Effects of the Invention]
[0014] In the frame of the present invention, the base plate and the frame body can be easily attached and detached, so that exhibits such as photographs and paintings can be easily held and the exhibits can be replaced and reused.Furthermore, since the frame of the present invention can be made of only a single material, it is easy to recycle or dispose of. [Brief explanation of the drawings]
[0015] [Figure 1] 1 is a front perspective view of a frame according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view of the frame according to the embodiment of the present invention, seen from the rear. [Figure 3] 1 is a front view showing a base plate and a frame body of a picture frame according to an embodiment of the present invention. [Figure 4] 1 is a front perspective view of a base plate and a frame body of a picture frame according to an embodiment of the present invention. [Figure 5] FIG. 10 is a front view showing a first modified example of a frame according to an embodiment of the present invention. [Figure 6] FIG. 10 is a front view showing a second modified example of the frame according to the embodiment of the present invention. [Figure 7] FIG. 10 is a front view showing a third modified example of the frame according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the accompanying drawings. As shown in FIG. 1, a frame 1A of this embodiment is an art frame made of cardboard for displaying a flat exhibit (not shown) such as a photograph or a picture.
[0017] In the following description, the up-down direction, front-rear direction, and left-right direction are set for the convenience of explaining the frame 1A of this embodiment, and do not limit the configuration or display form of the frame 1A. In the frame 1A of this embodiment, the side from which the exhibit can be seen is the front.
[0018] The frame 1A of this embodiment includes a flat base plate 10 and a ring-shaped frame body 20 (see FIG. 3). The frame 1A is configured to hold an exhibit by sandwiching it between the base plate 10 and the frame body 20. The base plate and the frame body 20 of this embodiment are made by cutting a cardboard sheet.
[0019] As shown in Fig. 4, the base plate 10 is a rectangular flat plate with recesses 11 formed on the top, bottom, left, and right outer edges. That is, four recesses 11 are formed on the outer periphery of the base plate 10.
[0020] The recessed portion 11 is a portion formed by recessing the outer edge of the base plate 10 toward the center thereof. The recessed portion 11 is disposed in the center of one side of the base plate 10 (see FIG. 3). The recess 11 has an inner end 11b (toward the center of the base plate 10) that is wider than the outer end 11a (the end on the outer edge side of the base plate 10). The inner end 11b of the recess 11 in this embodiment protrudes on both sides in the width direction (direction intersecting the recess direction) relative to the outer end 11a. Furthermore, both edge portions in the width direction of the inner end 11b are curved in an arc shape.
[0021] The base plate 10 has an opening for a finger hook 12 that communicates with the recess 11. The finger hook 12 in this embodiment is a semicircular recess formed in the center of the inner edge of the recess 11 (the edge on the center side of the base plate 10) toward the center of the base plate 10 (see FIG. 3).
[0022] As shown in FIG. 1, the size of the recess 11 is set so that when the frame body 20 described below is placed on the front surface of the base plate 10, the recess 11 is covered by the frame body 20 and is not visible on the front side of the frame 1A. The finger hook 12 is arranged so as to be exposed within the frame of the frame 20 without being covered by the frame 20 even when the frame 20 is placed on the front surface of the base plate 10 .
[0023] As shown in FIG. 4, the frame 20 is an annular (endless) member having a rectangular opening formed in the center of a rectangular flat plate. As shown in Figure 1, the shapes of the base plate 10 and the frame body 20 are set so that when the frame body 20 is placed on the front surface of the base plate 10, the top, bottom, left, and right edges of the frame body 20 overlap with the top, bottom, left, and right edges of the base plate 10, respectively. A locking piece 21 is provided protruding from each of the top, bottom, left and right outer edges of the frame body 20. That is, four locking pieces 21 are provided protruding from the outer peripheral edge of the frame body 20, one each for top, bottom, left and right.
[0024] The locking piece 21 protrudes outward from the outer edge of the frame body 20. The locking piece 21 is disposed in the center of one side of the base plate 10 (see FIG. 3). The locking piece 21 has a tip end 21b wider than a base end 21a. In this embodiment, the tip end 21b of the locking piece 21 protrudes on both sides in the width direction (direction intersecting the protruding direction) relative to the base end 21a. Furthermore, both edge portions in the width direction of the tip end 21b are curved in an arc shape. The outer shape of the locking piece 21 is formed to be the same as the inner shape (opening shape) of the recessed portion 11 of the base plate 10.
[0025] 2, when the frame body 20 is placed on the front surface of the base plate 10 and the locking pieces 21 are folded back toward the rear relative to the frame body 20, the locking pieces 21 are configured to fit into the recessed portions 11. At this time, the tip ends 21b of the locking pieces 21 are fitted into the inner end portions 11b of the recessed portions 11, and the base ends 21a of the locking pieces 21 are fitted into the outer end portions 11a of the recessed portions 11.
[0026] As shown in Fig. 4, the outer edge of the frame body 20 and the locking piece 21 are connected via a fold line L1 (see Fig. 3). In this embodiment, the fold line L1 is a half-cut line formed on the surface layer on the front side of the boundary between the frame body 20 and the locking piece 21. Specifically, the fold line L1 is formed by cutting into the liner and flutes (core) on the front side of the cardboard at the boundary between the frame body 20 and the locking piece 21. Therefore, the frame body 20 and the locking piece 21 are connected by the liner on the rear side.
[0027] Next, a procedure for placing an exhibit in the frame 1A of this embodiment will be described. First, as shown in Fig. 4, the base plate 10 and the frame body 20 are prepared in a separated state, and an exhibit (not shown) is placed on the front surface of the base plate 10. If necessary, a transparent sheet (not shown) may be placed on the front surface of the exhibit. 1, the frame body 20 is placed on the front surface of the exhibit, and the outer periphery of the exhibit is sandwiched between the base plate 10 and the frame body 20. At this time, the outer edge of the base plate 10 and the outer edge of the frame body 20 are aligned.
[0028] 2, the locking piece 21 is folded back at the fold line L1 relative to the frame body 20, and the locking piece 21 is fitted into the recess 11 from the rear side of the base plate 10. Then, the fit between the locking piece 21 and the recess 11 is maintained by the frictional force generated at the contact area between the inner edge of the recess 11 and the outer edge of the locking piece 21. In this way, the four locking pieces 21 provided on the frame body 20 are fitted into the four recesses 11 provided on the base plate 10, respectively, so that the base plate 10 and the frame body 20 can be connected in an overlapping state. As a result, the outer periphery of the exhibit is sandwiched between the base plate 10 and the frame body 20, and the exhibit is held in the frame 1A.
[0029] In the frame 1A described above, the base plate 10 and the frame body 20 can be easily connected by fitting the locking pieces 21 of the frame body 20 into the recessed portions 11 of the base plate 10, and an exhibit can be sandwiched and held between the base plate 10 and the frame body 20. In the frame 1A, the exhibit is exposed inside the frame body 20 shown in Figure 1. In this way, an exhibit can be easily placed in the frame 1A and displayed.
[0030] In the frame 1A of this embodiment, the frame body 20 and the locking pieces 21 are connected via the folding line L1, which is a half-cut line, so that the locking pieces 21 can be easily bent relative to the frame body 20. Furthermore, because the locking pieces 21 can be neatly bent relative to the frame body 20, the appearance of the outer periphery of the frame 1A is improved.
[0031] Furthermore, when replacing the exhibit placed in frame 1A with another exhibit, as shown in Figure 2, one can insert one's fingertip into finger hook portion 12 from the rear side of frame 1A, hook the fingertip on locking piece 21, and pull locking piece 21 backward. In this way, by removing the locking piece 21 from the recessed portion 11 and separating the base plate 10 and the frame body 20, the exhibit can be easily replaced.
[0032] In frame 1A of this embodiment, frictional force generated at the contact area between the inner edge of recess 11 and the outer edge of locking piece 21 maintains the fit between recess 11 and locking piece 21, connecting base plate 10 and frame body 20. In this configuration, locking piece 21 can be easily attached and detached to recess 11, so base plate 10 and frame body 20 can be easily connected and disassembled, allowing frame 1A to be used repeatedly.
[0033] In the frame 1A of this embodiment, the inner end 11b of the recess 11 is wider than the outer end 11a, and the tip end 21b of the locking piece 21 is wider than the base end 21a. With this configuration, the contact area between the recess 11 and the locking piece 21 is larger, and the frictional force between the recess 11 and the locking piece 21 is increased. Furthermore, when the locking piece 21 is pulled toward the base end 21a, the tip end 21b of the locking piece 21 catches on the edge of the inner end 11b of the recess 11. This makes it difficult for the locking piece 21 to come off the recess 11, thereby ensuring a reliable connection between the base plate 10 and the frame body 20.
[0034] In the frame 1A of this embodiment, there is no need to use adhesive materials such as glue, stickers, magnets, or adhesive tape to connect the base plate 10 and the frame body 20. In other words, the frame 1A can be made of only a single material (cardboard), which increases the recyclability of the frame 1A and makes it easy to dispose of.
[0035] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be modified as appropriate within the scope of the invention. 3, in the frame 1A of this embodiment, the frame body 20 and the locking piece 21 are connected via a fold line L1, which is a half-cut line, but the configuration of the fold line L1 formed at the boundary between the frame body 20 and the locking piece 21 is not limited. For example, it may be a crease (pressed crease) formed by linearly pressing the front surface of the sheet or a perforation formed by interrupting a half-cut line.
[0036] In the frame 1A of this embodiment, the inner end 11b of the recess 11 is wider than the outer end 11a, and the tip end 21b of the locking piece 21 is wider than the base end 21a. However, the shapes of the recess 11 and the locking piece 21 are not limited. For example, the inner end 11b and outer end 11a of the recess 11 may be formed to have the same width, and the tip end 21b and base end 21a of the locking piece 21 may be formed to have the same width. Alternatively, the inner end 11b of the recess 11 may protrude in only one direction in the width direction relative to the outer end 11a, and the tip 21b of the locking piece 21 may protrude in only one direction in the width direction relative to the base end 21a. Furthermore, when the locking piece 21 is fitted into the recess 11, a gap may be formed between the outer edge of the locking piece 21 and the inner edge of the recess 11. In other words, the recess 11 and the locking piece 21 do not need to be formed in the same shape.
[0037] The frame 1A of this embodiment is formed in a square shape as shown in Figure 1, but the shape of the frame of the present invention is not limited to this. For example, the frame may be formed in various shapes such as a rectangle, a polygon such as a triangle or a hexagon, or a circle.
[0038] In the frame 1A of this embodiment, one set of recessed portions 11 and locking pieces 21 is provided on each of the top, bottom, left and right sides, but the number of recessed portions 11 and locking pieces 21 is not limited and is set appropriately according to the size and shape of the base plate 10 and frame body 20.
[0039] For example, when the lengths of the top and bottom sides are different from the lengths of the left and right sides, as in the frames 1B and 1C shown in Figures 5 and 6, the number of recesses 11 and locking pieces 21 on the long sides can be made greater than the number of recesses 11 and locking pieces 21 on the short sides, thereby ensuring a secure connection between the base plate 10 and the frame body 20. Furthermore, as long as the base plate 10 and the frame body 20 can be reliably connected, it is not necessary to provide the recessed portions 11 and the locking pieces 21 on all sides of the frame.
[0040] In the frame 1A of this embodiment, as shown in Figure 3, the base plate 10 and the frame body 20 are configured as separate bodies, but the base plate 10 and the frame body 20 may be connected via a fold line L2, as in the frame 1D shown in Figure 7. In this configuration, when the base plate 10 and the frame body 20 are overlapped, the recessed portion 11 and the locking piece 21 can be easily aligned.
[0041] In the frame 1A of this embodiment, as shown in FIG. 3, one finger hook portion 12 is provided in the recessed portion 11, but as shown in FIGS. 6 and 7, multiple finger hook portions 12 may be provided in one recessed portion 11. Furthermore, although finger hook portion 12 of this embodiment is formed in a semicircular shape as shown in FIG. 3, the shape and size of finger hook portion 12 are not limited thereto.
[0042] Although the frame 1A of this embodiment is composed of a base plate 10 and a frame body 20 made of cardboard, the material of the frame of the present invention is not limited. For example, the base plate and frame body may be formed from various known paperboards. Furthermore, the frame may be composed of a base plate and frame body made of wood, metal, or resin. The frame of the present invention may also be made of a plurality of materials. For example, a transparent plate made of plastic or glass may be provided inside the frame body 20 made of paper. [Explanation of symbols]
[0043] 1A Picture Frame 1B Picture Frame (First Variant) 1C Picture Frame (Second Variant) 1D Picture Frame (Third Variant) 10 Base Plate 11 Recess 11a Outer end 11b Inner end 12 Finger rest 20 Frame 21 Locking piece 21a Proximal end 21b Tip L1 Line L2 Line
Claims
1. A base plate and an annular frame body are provided, A recess is formed on the outer edge of the base plate, A locking piece is provided on the outer edge of the frame body, A picture frame characterized in that the base plate and the frame body are connected by overlapping the frame body on the front surface of the base plate and fitting the locking piece, which is folded backward relative to the frame body, into the recess in the base plate.
2. 2. The picture frame according to claim 1, The inner end of the recessed portion is wider than the outer end thereof, The distal end of the locking piece is wider than the proximal end, A picture frame characterized in that the tip of the locking piece is fitted into the inner end of the recess.
3. 2. The picture frame according to claim 1, A picture frame characterized in that the frame body and the locking piece are connected via a folding line.
4. 4. The frame according to claim 3, The frame is characterized in that the folding line is a half-cut line formed on the surface layer on the front side of the boundary between the frame body and the locking piece.
5. 2. The picture frame according to claim 1, The frame is characterized in that the base plate has a finger hook portion that opens and communicates with the recess portion.
6. 2. The picture frame according to claim 1, A picture frame characterized in that the base plate and the frame body are made of cardboard.
Citation Information
Patent Citations
Paper-made picture frame
JP2021037215A