picture frame
The frame design with dovetail joints facilitates easy installation and replacement of thick artworks by allowing the transparent plate to be pulled out along grooves, providing stable and attractive framing.
Patent Information
- Application Number
- JP2025002019U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2035-06-18
AI Technical Summary
Conventional frames fail to stably hold thick artworks with protective transparent plates and are cumbersome for artwork exchange.
A frame design featuring a rectangular frame with a transparent plate inserted into a groove and a back plate, utilizing dovetail joints for easy assembly and disassembly, allowing the transparent plate to be pulled out along grooves for artwork installation and replacement.
Enables stable mounting and easy storage/replacement of thick artworks with protective transparent plates, ensuring secure attachment and a gap-free finish.
Smart Images

Figure 0003252480000001_ABST
Abstract
Description
[Technical Field]
[0001] This invention relates to a frame for framing thick artwork. [Background technology]
[0002] Traditionally, there have been frames known as floating frames for framing canvases and thick artworks. For example, the floating frame described on the webpage in Non-Patent Document 1 has a transparent acrylic resin board on the front to protect the artwork, and the backing board attached to the back of the deep frame is removed from the register and the artwork is then screwed to the backing board or similar.
[0003] In addition, to make it easier to exchange artworks, some regular frames were one-side opening / closing frames, such as those described in Utility Model Registration Document 1, which allowed one side of the frame to be opened or closed.
[0004] FIG. 8 shows a conventional one-side opening and closing picture frame described in Utility Model Registration Document 1.
[0005] In Figure 8, this frame has three sides of a frame 801 that are integrally formed into a U-shape, and an openable / closable frame 802, which serves as the other side of the frame, is attached to the U-shaped frame F via a pair of left and right composite connectors 803 so that artwork W can be inserted and removed through the U-shaped opening. This composite connector 803 is composed of a combination of an L-shaped fixed side piece 806 and a sliding side piece 805 attached to the end of the openable / closable frame, and by providing a recessed portion in one of the fixed side piece or the sliding side piece and a protruding portion in the other that slidably engages with the recessed portion, the openable / closable frame 802 can be opened by sliding it in steps toward the front. [Prior art documents] [Patent documents]
[0006] [Patent Document 1] Japanese Utility Model Application Publication No. 06-068564 [Non-patent literature]
[0007] [Non-Patent Document 1] "Sukiwa" Webpage Internet<URL:https: / / sukiwa.net / frame / agframe> Summary of the Invention [Problem to be solved by the invention]
[0008] However, in conventional floating frames, when the artwork is not in contact with the protective transparent plate, a member is required to hold down the mat or backing plate holding the artwork from the front side to prevent them from falling toward the transparent plate.
[0009] Furthermore, the one-side opening and closing frame described in the conventional example cannot be used as a floating frame because it is not possible to attach a protective transparent plate.
[0010] The present invention was made to solve the above-mentioned conventional problems, and its purpose is to provide a frame that can store thick artworks and has a protective transparent plate, which can stably hold the artworks within the frame and can also easily store and replace the artworks. [Means for solving the problem]
[0011] The frame of the present invention, which solves the above-mentioned conventional problems, comprises a rectangular frame, a transparent plate inserted into a groove along the inner periphery of the front surface of the frame, and a back plate joined to the back surface of the frame.The frame member, which has a ridge that forms the surface of at least one side of the frame and a frame side panel that forms the side, slides in the direction of the ridge and separates from the frame and back plate, leaving behind the underside of that side.
[0012] This allows the frame member forming the groove on one side of the rectangular frame to be removed, so that the transparent plate can be pulled out along the grooves on the other three sides of the frame, and the work can be easily attached to the back plate from the front side of the frame.
[0013] In addition, the frame of the present invention has a convex portion on one of the sliding surfaces of the frame side panel of the frame member and the frame member receiving portion which has a sliding surface and a lower surface which formed a groove and remains as a result of the separation of the frame member, and a concave portion which engages with the convex portion on the other.
[0014] This allows the frame member and the frame member receiving portion to be joined in close contact with each other.
[0015] In addition, the convex portion of the frame member or frame member receiving portion of the frame according to the present invention is a dovetail, and the concave portion of the other is a dovetail, both of which are tapered toward the back plate.
[0016] This allows the frame member to slide toward the front surface without resistance, making it easy to separate the frame member from the frame member receiving portion. Also, when the frame member is slid toward the back plate, the dovetail grooves and tenon joints fit tightly together without any gaps, allowing the frame member to be attached to the frame in an attractive manner.
[0017] Furthermore, when the frame of the present invention is hung on a wall, even if the separating frame member is positioned below the frame, the frame member receiving portion that engages with the frame member is dovetailed, preventing the frame member from falling. [Effects of the Invention]
[0018] As described above, according to this invention, even thick artworks can be stably mounted in frames with protective transparent plates, and artworks can be easily stored and replaced. [Brief explanation of the drawings]
[0019] [Figure 1] 1 is a perspective view of a frame according to a first embodiment of the present invention; [Figure 2] FIG. 1 is an exploded perspective view of a frame according to a first embodiment of the present invention; [Figure 3] FIG. 1 is a perspective view of a frame member that forms a part of a frame in accordance with a first embodiment of the present invention; [Figure 4] (a) is a front view of the frame body from which the frame members of the frame according to the first embodiment of the present invention have been removed, as seen from the frame member receiving portion side; (b) is a partial plan view of the frame body; [Figure 5] FIG. 1A is a front view of a frame member that forms part of a picture frame in accordance with a first embodiment of the present invention; FIG. 1B is a plan view of the frame member; [Figure 6] 1 is a plan view of a frame according to a first embodiment of the present invention; [Figure 7] ABC line cross-sectional view of the frame in the first embodiment of the present invention. [Figure 8] Front view of a conventional one-side opening and closing frame DETAILED DESCRIPTION OF THE INVENTION
[0020] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0021] (Embodiment 1) FIG. 1 is a perspective view of a picture frame according to a first embodiment of the present invention.
[0022] 1, frame 1 is composed of a rectangular frame 100, a back plate 400 that joins to the back of the frame, and a transparent plate (not shown) that fits into a groove 130 provided along the inner periphery of the frame. The dimensions of the window in frame 100 (window dimensions) are the same as the inner dimensions of the frame, which is the space in which the artwork is stored, so that the artwork can be viewed without losing any of its edges.
[0023] Then, the frame member 200 that forms the surface and side of one side of the frame 100 slides toward the surface along the boundary line shown by the dashed line in the figure and separates from the frame 100. The frame member receiving portion 120 that engages with the separated frame member 200 on one side joins with the other three sides of the frame 100 to form the frame main body 110.
[0024] The back plate 400 is shaped like a square with a hole in the center, and each side has at least one screw hole (not shown) that is used to secure the artwork with a screw.
[0025] The frame 100 and back panel 400 of the picture frame according to the embodiment of the present invention are made of wood, and the transparent panel for protecting the artwork is made of acrylic resin.
[0026] FIG. 2 is an exploded perspective view of the frame 1 according to the present embodiment.
[0027] In FIG. 2, the frame member 200 is separated from the frame main body 110 and the back plate 400 by sliding toward the front surface side of the frame 100 as described above.
[0028] Furthermore, the remaining portion of the side from which the frame member 200 has been removed is the frame member receiving portion 120, and the upper surface of this frame member receiving portion 120 forms the lower surface of the groove 130 on this side. Therefore, the transparent plate 300 is inserted and removed along the grooves 130 on the other three sides of the frame main body 110 and the upper surfaces of these frame member receiving portions 120.
[0029] The side of the frame member receiving portion 120 that stores the artwork stands upright from the back plate 400, just like the other three side surfaces.
[0030] Furthermore, the surface of the frame member receiving portion 120 that engages with the frame member 200 has two recesses and protrusions for engagement at symmetrical positions.
[0031] Next, the structure of the engaging portion between the frame main body 110 and the frame member 200 will be described.
[0032] 4(a) and (b) are diagrams for explaining the frame member receiving portion 120 of this frame main body 110, with Fig. 4(a) being a front view of the frame main body with the frame member 200 removed from the frame, as seen from the frame member receiving portion 120 side, and Fig. 4(b) being a partial plan view of the frame main body. Note that in this figure, the transparent plate 300 is shown in an undrawn state.
[0033] 2 and 4(a) and (b), dovetail grooves 121 are formed in two symmetrical locations on frame member receiving portion 120, and they have a tapered shape that narrows toward the joint with back plate 400. In addition, the height from back plate 400 of upper surface 122 of frame member receiving portion 120 that comes into contact with transparent plate 300 is the same as the height from back plate 400 of the lower surfaces of grooves 130 provided on the other three sides of frame main body 110, and constitutes the lower surfaces of grooves 130 that are formed when engaging with frame member 200. This will be described in detail later using other drawings.
[0034] Fig. 3 is a perspective view of the frame member 200, and shows the frame member 200 shown in Fig. 2 rotated 180 degrees with the longitudinal direction as the axial direction. Fig. 5(a) is a front view of the frame member 200 shown in Fig. 3, and Fig. 5(b) is a plan view.
[0035] In Figures 3 and 5(a) and (b), the frame member 200 is L-shaped and consists of a ridge 220 that forms the surface of one side of the frame, a side panel 210 that forms the side of that side, a dovetail 211 provided at a position corresponding to the dovetail groove 121 of the frame member receiving portion 120, and a stopper 221 that, when engaged with the frame member receiving portion 120, enables the formation of a groove of the same size as the grooves 130 on the other three sides.
[0036] In the frame member 200 configured in this manner, the side panel 210 has a length that extends to the back panel 400 when the frame member 200 is assembled to the frame body.
[0037] Additionally, dovetail tenon 211 has a size and shape that allows it to engage with dovetail groove 121 provided in frame member receiving portion 120, that is, it has a tapered shape that narrows in the direction of insertion into frame member receiving portion 120. Furthermore, this narrowed tip surface of dovetail tenon 211 and the end surface of side panel 210 are flush with each other, allowing it to fit closely with back panel 400 for a good appearance when assembled to the frame body.
[0038] In addition, the stopper 221 is joined to the corner between the eaves edge 220 and the side panel 210 over almost the entire length of the frame member 200, and the height of the stopper 221 is the same as the width of the groove 130 on the other three sides of the frame main body 110, and the width of the stopper 221 is the same as the thickness of the dovetail 211.
[0039] This allows for the formation of a groove having the same width and depth as the grooves 130 on the other three sides when the frame member 200 is engaged with the frame main body 110. This will be described later with reference to other drawings.
[0040] Next, the structure of the engagement portion when the frame body 110 and the frame member 200 are engaged with each other to assemble the frame 1 will be described.
[0041] FIG. 6 is a plan view of a frame 1 according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along line ABC.
[0042] In FIG. 6, line ABC passes through the center of the side where the frame members 200 of the picture frame having the transparent plate 300 are assembled, and any point on the other side.
[0043] 7, the dovetail groove of frame member receiving portion 120 engages with the dovetail tenon of frame member 200, causing the side surface of frame member receiving portion 120 on the dovetail groove side to come into sliding contact with inner surface 213 of side panel 210 of frame member 200, and the end surface of the side surface of frame member 200 to come into contact with back plate 400. In addition, stopper 221 of frame member 200 abuts against the upper surface of frame member receiving portion 120. As mentioned above, the height of the upper surface of the frame member receiving portion 120 from the back plate 400 is the same as the height of the lower surface of the groove 130 of the frame main body 110, and the height of the stopper 221 of the frame member 200 is the same as the width of the groove 130 of the frame main body 110, so the surface of the overhanging edge 220 of the frame member 200 is at the same height as the surfaces of the three sides of the frame main body 110.
[0044] Furthermore, as mentioned above, the width of the stopper 221 is the same as the thickness of the dovetail 211, so a gap is created on the upper surface of the frame member receiving portion 120 that is the same width and depth as the groove 130 in the frame main body 110, forming a groove that is approximately the same as the groove 130 in the frame main body 110.
[0045] In this way, the groove formed by the frame member 200 and the frame member receiving portion 120 has a height from the back plate 400 on its lower surface that is the same as the height of the groove 130 in the frame main body 110, and the groove width and depth are also approximately the same, so when the frame member 200 is assembled to the frame main body, the transparent plate 300 is fixed parallel to the back plate 400.
[0046] Furthermore, as described above, the depth and width of the groove formed by the stopper 221 and the frame member receiving portion 120 can be adjusted, so that when the frame member 200 is assembled to the frame 1, the frame can be prevented from protruding from other frames, resulting in a good-looking finish.
[0047] Next, we will explain how to handle and operate the frame constructed as described above when storing and exchanging artworks.
[0048] First, in the embodiment of the present invention, the frame 1 has a frame member 200 attached to the frame body. A transparent plate 300 is fitted to the front side of the frame 1, and a back plate 400 is joined to the frame body 110 on the back side with an adhesive or the like.
[0049] To attach the artwork from this state, first slide frame member 200 toward the front surface. At this time, dovetail groove 121 provided in frame member receiving portion 120 of frame main body 110 and dovetail tenon 211 provided in frame member 200 are engaged, but because dovetail groove 121 and dovetail tenon 211 are tapered toward back plate 400, frame member 200 can be easily slid toward the front surface with just a little force and removed.
[0050] Next, the transparent plate 300 is slid in the direction in which the frame member 200 was attached. With the frame member 200 removed, the upper surface of the frame member receiving portion 120 of the frame main body 110 is at the same height as the lower surfaces of the grooves 130 provided on the other three sides of the frame main body 110, so there is nothing obstructing it and the transparent plate 300 can be easily pulled out.
[0051] Next, the work is set on the back plate 400 through the window of the frame 1 where the transparent plate 300 has been removed, and the work is fixed to the back plate 400 with screws from the back side of the frame 1. The back plate 400 has at least one screw hole on each side, so the work can be easily fixed to the back plate 400 with screws.
[0052] Next, the transparent plate 300 is inserted into the frame along the groove 130 of the frame main body 110 until it abuts against the groove 130 on the opposing side. Because the upper surface of the frame member receiving portion 120 and the lower surface of the groove 130 of the frame main body 110 are at the same height from the back plate 400, the transparent plate 300 can be inserted into the groove 130 of the frame main body 110 along the upper surface of the frame member receiving portion 120.
[0053] Next, from the front side of the frame body, the dovetail 211 of the frame member 200 is inserted along the dovetail groove 121 of the frame member receiving portion 120 of the frame body 110, and pushed in until the stopper 221 abuts against the frame member receiving portion 120. Because the dovetail 211 of the frame member 200 and the dovetail groove 121 of the frame member receiving portion 120 both have a tapered shape toward the back plate 400, the frame member 200 can be easily inserted into the frame member receiving portion 120 and can be attached to the frame body 110 in perfect contact.
[0054] As described above, in the embodiment of the present invention, even in a picture frame with a protective transparent plate, the frame member incorporated into one side of the frame can be removed, so the transparent plate can be easily pulled out along the grooves on the remaining three sides of the frame. This allows thick artwork to be set into the back plate through the frame window and screwed in, making it easy to install and replace artwork.
[0055] In addition, in the embodiment of the present invention, a convex portion is provided on either the sliding surface of the frame member or the sliding surface of the frame member receiving portion, and a concave portion that engages with the convex portion is provided on the other, so that the frame member and the frame member receiving portion can be engaged in close contact with each other.
[0056] In addition, in the embodiment of the present invention, the convex portion is a dovetail and the concave portion is a dovetail, so the frame member will not come off the frame, and even if the frame is attached to a wall surface with the frame member facing downward, the frame member will not fall off the frame body.
[0057] Furthermore, in the embodiment of the present invention, the dovetail groove 121 of the frame main body 110 and the dovetail tenon 211 of the frame member 200 are both tapered toward the back plate 400, so that the dovetail groove 121 and the dovetail tenon 211 are fully engaged, and the frame member 200 and the frame main body 110 are tightly attached without any gaps, allowing for a good-looking framing.
[0058] In this embodiment, the back plate 400 of the frame 1 has a square shape with a hole in the center, but is not limited to this and may be one that covers the entire surface.
[0059] In addition, in the frame 1 of this embodiment, a dovetail groove is provided in the frame member and a dovetail groove is provided in the frame member receiving portion, but this is not limited to this, and it is also possible to provide a dovetail groove in the frame member and a dovetail groove in the frame member receiving portion.
[0060] Furthermore, in the frame 1 of the present embodiment, the number of dovetail grooves and dovetail tenons is two, but this is not limitative and the number can be increased according to the length of the sides.
[0061] In addition, in the frame 1 of this embodiment, the side where part of the frame separates is the short side, but this is not limited to this and it can also be the long side, and it is also possible to configure the frame members to be separated at multiple sides.
[0062] Furthermore, in this embodiment, the window dimensions and inner dimensions of the frame are the same, but this is not limited to this. It is also possible to extend the eaves of the frame to make the hook longer, but the size of the artwork that can be stored is limited to within the range of the window dimensions. [Industrial Applicability]
[0063] This invention is useful for frames with protective transparent panels that can accommodate thick artwork and are suitable for facilitating artwork replacement. [Explanation of symbols]
[0064] 1. Picture Frame 100 frames 110 Frame body 120 Frame member receiving part 121 Dovetail groove 130 Groove 200 Frame members 211 Dovetail 221 Stopper 300 Transparent plate 400 Back Plate 801 Three-sided frame 802 Opening and Closing Frame 803 Composite connector 804 Fixed side piece 805 Slide side piece
Claims
1. The device comprises a rectangular frame, a transparent plate inserted into a groove provided along the inner periphery of the front surface of the frame, and a back plate joined to the back surface of the frame, A frame member having a ridge forming the surface of at least one side of the frame and a frame side panel forming the side surface slides in the direction of the ridge to separate from the frame and the back panel, leaving behind the lower surface of the groove on that side.
2. A convex portion is provided on one of the sliding contact surfaces of the frame side panel of the frame member and the frame member receiving portion having a sliding contact surface with the lower side surface that formed the groove and that remains as a result of the separation of the frame member, and a concave portion that engages with the convex portion is provided on the other.
2. The frame according to claim 1.
3. The protrusion is a dovetail and the recess is a dovetail, both tapered toward the back plate.
3. The frame according to claim 2.
Citation Information
Patent Citations
One side openable picture frame
JP1994068564U