FIXING PIECE CONNECTING TO A PHOTO FRAME BACKING BOARD AND MANUFACTURING METHOD THEREOF

Abstract

A fixing piece connecting to a photo frame backing board, comprising a rotating portion and a fixed portion connected with a photo frame. One end of the rotating portion is connected with the fixed portion. Another end is connected with a fixed body used for fixing the photo frame; the rotating portion is formed by engaging and connecting a concave rotational surface and a convex rotational surface. A method for manufacturing the aforementioned fixing piece connecting to a photo frame backing board is also provided.

Claims

1. A fixing piece connecting to a photo frame backing board, comprising a rotating portion and a fixed portion connected with a photo frame; one end of the rotating portion is connected with the fixed portion; another end of the rotating portion is connected with a fixing body used for fixing the photo frame; the rotating portion is formed by engaging and connecting a concave rotational surface and a convex rotational surface; the convex rotational surface of the rotating portion is connected with the fixed portion; the concave rotational surface is connected with the fixing body; a through hole is provided at a center of the concave rotational surface; the fixed portion connected with the convex rotational surface passes through the through hole; the convex rotational surface is sleeved within the concave rotational surface so as to be fitted and connected together; the concave rotational surface limits the convex rotational surface so that the convex rotational surface is only capable of rotating within and relative to the concave rotational surface but not able to slip off from the concave rotational surface; the concave rotational surface limits the convex rotational surface by the following configuration: after the concave rotational surface has sleeved the convex rotational surface, an outer site of the concave rotational surface is processed to form a flange wherein an inner diameter of the flange is smaller than an outer diameter of the convex rotational surface.

2. The fixing piece connecting to a photo frame back in board as described in claim 1, wherein the concave rotational surface is formed as an annular inward concave slot, multiple sections of arc-shaped inward concave slots or a plurality of inward concave engagement points; the convex rotational surface is formed as an annular flange, multiple sections of arc-shaped flanges or a plurality of convex engagement points; various formations of the concave rotational surface and the convex rotational surface fit and connect correspondingly, meeting the following conditions: the concave rotational surface keeps limiting a position of the convex rotational surface, so that the convex rotational surface is only capable of rotating within and relative to the concave rotational surface but not able to slip off from the concave rotational surface.

3. The fixing piece connecting to a photo frame backing board as described in claim 2, wherein the concave rotational surface and convex rotational surface are fitted and connected to each other according to any one of the following forms: (1) the concave rotational surface being an annular inward concave slot while the convex rotational surface being an annular flange; (2) the concave rotational surface being multiple sections of arc-shaped inward concave slots while the convex rotational surface being multiple sections of arc-shaped flanges; (3) the concave rotational surface being an annular inward concave slot while the convex rotational surface being a plurality of convex engagement points; the plurality of convex engagement points are circumferentially and evenly distributed; (4) the concave rotational surface being a plurality of inward concave engagement points while the convex rotational surface being an annular flange; (5) the concave rotational surface being multiple sections of arc-shaped inward concave slots while the convex rotational surface being a plurality of convex engagement points; both the arc-shaped inward concave slots and the convex engagement points are circumferentially and evenly arranged; a width of each of the convex engagement points is larger than a width of each gap between adjacent arc-shaped inward concave slots to ensure that the convex engagement points do not slip off through each of the gap; (6) the concave rotational surface being a plurality of inward concave engagement points while the convex rotational surface being multiple sections of arc-shaped flanges; both the plurality of inward concave engagement points and the arc-shaped flanges are circumferentially and evenly arranged; a width of each of the inward concave engagement points is larger than a width of each gap between adjacent arc-shaped flanges to ensure that the inward concave engagement points do not slip off through each of the gap.

4. The fixing piece connecting to a photo frame backing board as described in claim 1, wherein the fixed portion connected with the photo frame is sharp thorns, which are inserted and fixedly connect with the photo frame backing board; the sharp thorns are circumferentially and evenly arranged in a petaloid form.

5. The fixing piece connecting to a photo frame backing board as described in claim 1, wherein the fixing body used for fixing the photo frame is a hanging ring, a hanging strip, a supporting frame, a press strip, a press block, a clamping strip or a clamping block.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0038] FIG. 1 is an illustrative diagram showing the use of a screw for connecting a fixing piece according to prior art.

[0039] FIG. 2 is an illustrative diagram showing the use of a general rivet for connecting a fixing piece according to prior art.

[0040] FIG. 3 is a diagram showing the structure of the fixing piece of the present invention.

[0041] FIG. 4 is diagram showing the working principle of the fixing piece as shown in FIG. 3.

[0042] FIG. 5 is another diagram showing the structure of the fixing piece of the present invention.

[0043] FIG. 6 is still another diagram showing the structure of the fixing piece of the present invention.

[0044] FIG. 7 is a further diagram showing the structure of the fixing piece of the present invention.

[0045] FIG. 8 is a diagram showing the fifth structure the fixing piece of the present invention.

[0046] FIG. 9 is a diagram showing the sixth structure of the fixing piece of the present invention.

[0047] FIG. 10 is a diagram showing the seventh structure of the fixing piece of the present invention.

[0048] FIG. 11 is a diagram showing the eighth structure of the fixing piece of the present invention.

[0049] FIG. 12 is a diagram showing the ninth structure of the fixing piece of the present invention.

[0050] FIG. 13 is a diagram showing the tenth structure of the fixing piece of the present invention.

[0051] FIG. 14 is a diagram showing the eleventh structure of the fixing piece of the present invention.

[0052] FIG. 15 is a diagram showing the twelfth structure of the fixing piece of the present invention.

[0053] FIG. 16 is another diagram showing the twelfth structure of the fixing piece of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0054] The present invention is further described in detail below with reference to the accompanying drawings. However, the embodiments of the present invention are not limited thereto.

Embodiment 1

[0055] FIG. 3 illustrates a specific embodiment of the present invention. As seen in FIG. 3, the present fixing piece connecting to a photo frame backing board comprises a rotating portion 1 and a fixed portion 2 connected with a photo frame. One end of the rotating portion 1 is connected with the fixed portion 2. Another end of the rotating portion 1 is connected with a fixing body 3 used for fixing the photo frame; the rotating portion 1 is formed by engaging and connecting a concave rotational surface 4 and a convex rotational surface 5; the concave rotational surface 4 is an annular inwardly recessed slot. The convex rotational surface 5 is an annular flange. Both rotational surfaces engaged as such both form a complete annular shape.

[0056] The concave rotational surface 4 of the rotating portion 1 is connected with the fixed portion 2. The convex rotational surface 5 is connected with the fixing body 3. The convex rotational surface 5 is sleeved by the concave rotational surface 4. The concave rotational surface 4 limits the convex rotational surface 5 so that the convex rotational surface 5 can only rotate relative to the concave rotational surface 4 but cannot slip off from the concave rotational surface 4. The fixed portion 2 connected with the photo frame is formed as sharp thorns, which can insert into and fixedly connect with the photo frame backing board; the sharp thorns can be circumferentially and evenly distributed in a petaloid form to provide a more even fixing effect on along the circumference; the fixing body 3 is a backing board plate used for fixing the photo frame. The whole connection is shown in FIG. 4. As seen in FIG. 4, sharp thorns are inserted in the photo frame backing board 6 allowing the fixed piece 2 to secure to the photo frame. The rotating portion 1 formed by engaging and connecting the concave rotational surface and the convex rotational surface can rotate freely without restrictions. Position of the photo frame is fixed by adjusting the backing board plate to a proper position.

[0057] A manufacturing method of the aforementioned fixing piece connecting the photo frame backing board comprises the following steps:

[0058] (1) making a backing board plate used for fixing a photo frame and producing a convex rotational surface on one side thereof by punching;

[0059] (2) making sharp thorns to be connected with the photo frame, processing one side of the sharp thorns so that the sharp thorns are circumferentially and evenly distributed in a petaloid form; pressing said side of the sharp thorns into the photo frame to fixedly connect the sharp thorns with the photo frame; and producing a concave rotational surface at another side of the sharp thorns opposite to the side of the sharp thorns pressed into the photo frame.

[0060] (3) engaging the concave rotational surface connected with the sharp thorns and the convex rotational surface on the backing board plate to complete the manufacturing of the present fixing piece.

Embodiment 2

[0061] FIG. 5 illustrates another specific structure of the present invention. As seen in FIG. 5, this embodiment is the same as Embodiment 1 except the following feature: the concave rotational surface connected with the sharp thorns is formed in a circular shape by two sections each being an arc-shaped inward concave slot 7. This form of rotational surface is not in a complete annular shape. Materials can be relatively saved. Also, if scrap or dirt hindering relative rotation exists between the two rotational surfaces, this form of structure allows the scrap or dirt to be removed easily through the gaps between the arc-shaped inward concave slots.

Embodiment 3

[0062] FIG. 6 illustrates another specific structure of the present invention. As seen in FIG. 6, this embodiment is the same as Embodiment 2 except the following feature: the concave rotational surface connected with the sharp thorns is formed in a circular shape by three sections each being an arc-shaped inward concave slot 8.

Embodiment 4

[0063] FIG. 7 illustrates a further specific structure of the present invention. As seen in FIG. 7, this embodiment is the same as Embodiment 1 except the following features: the concave rotational surface connected with the sharp thorns is formed as three inward concave engagement points 9 while convex rotational surface is an annular flange; the inward concave engagement points are circumferentially and evenly distributed; this form of structure is much simpler. Materials can be significantly reduced. It is very easy to remove the scrap or dirt which exists between the rotational surfaces and hinders relative rotation.

Embodiment 5

[0064] FIG. 8 illustrates the fifth specific structure of the present invention. As seen in FIG. 8, this embodiment is the same as Embodiment 1 except the following features: the fixing body 3 is a triangular hook. The annular flange is connected with one side of the triangular hook through a rolled edge 10.

Embodiment 6

[0065] FIG. 9 illustrates the sixth specific structure of the present invention. As seen in FIG. 9, this embodiment is the same as Embodiment 5 except the following feature: the concave rotational surface connected with the sharp points is formed as three inward concave engagement points 9.

Embodiment 7

[0066] FIG. 10 illustrates the seventh specific structure of the present invention. As seen in FIG. 10, this embodiment is the same as Embodiment 1 except the following features: the fixing body 3 used for fixing the photo frame is an elastic clamping plate. The elastic clamping plate is provided with a hole 11.

Embodiment 8

[0067] FIG. 11 illustrates the eighth specific structure of the present invention. As seen in FIG. 11, this embodiment is the same as Embodiment 1 except the following features: the fixing body 3 used for fixing photo frame an elastic plate. The elastic plate is provided with a hole 12.

Embodiment 9

[0068] FIG. 12 illustrates the ninth specific structure of the present invention. As seen in FIG. 12, this embodiment is the same as Embodiment 1 except the following features: sharp thorns of the fixed portion are connected with an annular flange 13. The fixing body is connected with an annular inward concave slot 14. The annular flange 13 is sleeved by the annular inward concave slot 14. The annular inward concave slot 14 limits a position of the annular flange 13; the fixing body 3 is an elastic clamping plate. The elastic clamping plate is provided with a hole 11.

[0069] A manufacturing method of the aforementioned fixing piece connecting the photo frame backing board comprises the following steps:

[0070] (1) making the elastic clamping plate used for fixing a photo frame and producing a circular straight edge at an end thereof;

[0071] (2) making the fixed portion to be connected with the photo frame, processing one side of the fixed portion into sharp thorns to be connected with the photo frame, and producing a circular straight edge at another side of the fixed portion by punching;

[0072] (3) engaging the circular straight edge of the elastic clamping plate and the circular straight edge of the fixed portion, then making the circular straight edge of the elastic clamping plate into a concave rotational surface by punching in the meantime, making the circular straight edge of the fixed portion correspondingly into a convex rotational surface by punching to directly form a structure which fit and engage the concave rotational surface and the convex rotational surface together.

Embodiment 10

[0073] FIG. 13 illustrates the tenth specific structure of the present invention. As seen in FIG. 13, this embodiment is the same as Embodiment 1 except the following features: convex rotational surface 15 connected with sharp thorns is in a circular shape formed by three sections each being an arc-shaped flange. Concave rotational surface 16 connected with the fixing body 3 is in a circular shape formed by three sections each being an arc-shaped outward concave slot. These rotational surfaces are not formed as being completely and continuously annular. Materials can be relatively saved. Also, if scrap or dirt hindering relative rotation exists between the two rotational surfaces, this form of structure allows the scrap or dirt to be removed out of the gaps between the re-shaped sections.

Embodiment 11

[0074] FIG. 14 illustrates the eleventh specific structure of the present invention. As seen in FIG. 14, this embodiment is the same as Embodiment 1 except the following features: convex rotational surface 15 connected with sharp thorns is in a circular shape formed by four sections each being an arc-shaped flange. Concave rotational surface 16 connected with the fixing body 3 is in a circular shape formed by five sections each being an arc-shaped outward concave slot. These rotational surfaces are not formed as being completely and continuously annular. Materials can be relatively saved. Also, if scrap or dirt hindering relative rotation exists between the two rotational surfaces, this form of structure allows the scrap or dirt to be removed out of the gaps between the arc-shaped sections.

Embodiment 12

[0075] FIGS. 15 and 16 respectively illustrate the twelfth specific structure of the present invention. This embodiment is the same as Embodiment 1 except the following features: convex rotational surface 18 of the rotating portion is connected with the sharp thorns. Concave rotational surface 19 is connected with the fixing body. A through hole is provided at the center of the concave rotational surface 19. After the sharp thorns connected with the convex rotational surface 18 pass through the through hole, the convex rotational surface 18 behind is in contact with the concave rotational surface 19. An outer side of the concave rotational surface 19 is subject to punching process to form a flange 17 on an inner side of the concave rotational surface 19. An inner diameter of the flange 17 is smaller than an outer diameter of the convex rotational surface 18, thereby forming a structure which allows position limiting of the convex rotational surface 18 by the concave rotational surface 19, so that the convex rotational surface 18 can only rotate relative to the concave rotational surface 19 but cannot slip off from the concave rotational surface 19; this structure has the effects that the convex rotational surface 18 and the concave rotational surface 19 are fitted and connected with each other so that they will not disengage easily. In addition, a flange 17 is arranged to limit the position of the convex rotational surface 18 connected with the fixed portion 2, resulting in a more secure and reliable connection so that they can no longer disengage.

[0076] The above embodiment is a more preferred description of the present invention. However, description of the present invention is not limited by the above embodiment. Any other changes, modification, substitution, combinations, simplification and equivalents not deviated from the essence and principle of the present invention are equivalent replacement and they all fall into the scope of protection of the present invention.