WO2021068276A1

WO2021068276A1 - Rapid-fold-up light-shielding device

Info

Publication number: WO2021068276A1
Application number: PCT/CN2019/111587
Authority: WO
Inventors: 袁国奎
Original assignee: 珠海市川富光学技术有限公司
Priority date: 2019-10-12
Filing date: 2019-10-17
Publication date: 2021-04-15
Also published as: CN110673421A

Abstract

A rapid-fold-up light-shielding device comprises a funnel-shaped enclosure (1) formed by folding a light-shielding plate. The light-shielding plate is provided with a first fold line (2), a fold positioning member (3) and a through hole (4) coaxial with the funnel-shaped enclosure (1). When not in use, the light-shielding device can be unfolded into a flat form, such that the volume thereof and a space occupied thereby can be greatly reduced. The light-shielding device has a light weight, is easy to store and carry, has a simple structure, and can be manufactured and processed easily. The light-shielding device has low costs, is suitable for batch production, and can be popular to photography fans.

Description

A fast-folding shading device

Technical field

The invention belongs to the technical field of photographic equipment, and particularly relates to a fast-folding shading device.

Background technique

In photographing and photography, shading devices are often used to install on the camera lens or the camera lens (for example: camera hood, film hood). However, the applicant found that: the current shading devices on the market are all made of aluminum or other metals or plastics. They are very heavy and have a fixed shape and cannot be folded. Therefore, they are large in size and occupy a large space, making it extremely inconvenient to store and carry. , And the structure is very complicated, the production and processing are difficult, and the cost is high.

In addition, when the filter holder is installed on the camera lens and the camera lens, the existing camera hood and film hood cannot be installed and used, which cannot meet the photography needs.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, the present invention provides a foldable, installed on a camera lens holder or a camera lens filter holder for use, and can be expanded into a plane shape, simple, convenient, fast, and heavy. The shading device is extremely light, easy to store and carry, simple in structure, easy to produce and process, and low in cost.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

A fast-folding shading device, comprising a funnel-shaped shading body, the funnel-shaped shading body is folded by a shading plate, the shading plate is provided with a first folding mark and a folding positioning member, and the funnel-shaped Concentric through hole of the hood body.

Further, the funnel-shaped light shield body is a polyhedral funnel light shield body, which includes a bottom plate and a plurality of side plates that are connected integrally, a through hole is provided in the middle of the bottom plate, and a plurality of the side plates are arranged in a circular distribution. There are first fold marks on the circumference of the bottom plate and between several side plates and between the side plates and the bottom plate, and a folding positioning member is also provided between the side plates.

Further, the funnel-shaped light-shielding cover includes a bottom plate and four or more side plates that are connected as a whole, and the side plates are trapezoidal plates.

Further, the funnel-shaped light-shielding body is a circular funnel-shaped light-shielding body, including a connected bottom plate and two or more arc-shaped side plates, and the bottom plate and the side plates are respectively a circular bottom plate and an arc-shaped side. The circular bottom plate is provided with a concentric through hole in the middle, and a first fold mark is provided between two or more arc-shaped side plates and between the circular arc-shaped side plate and the circular bottom plate, At the same time, a folding positioning member is also arranged between the arc-shaped side plates.

Further, the circular funnel shade body includes two left and right circular arc-shaped side plates, and the left and right two circular arc-shaped side plates are symmetrically arranged on the left and right sides of the circular bottom plate.

Further, the bottom plate and at least one set of two opposite side plates are provided with second fold marks, and the second fold marks on the bottom plate and the two side plates are located on the same straight line.

Further, the light-shielding board includes a flexible outer coating layer and a plurality of reinforcing sheets, and the plurality of reinforcing sheets are separately provided in the flexible outer coating layer to form the bottom plate and the side plate, and the flexible outer cover The covering layer forms the first fold marks between the two reinforcing sheets separated from each other.

Further, the folding positioning member includes at least two magnetic attraction members, the flexible outer coating layer between the two adjacent side panels is provided with a folding connection part, and the magnetic attraction parts are arranged oppositely in the folding connection part. And when the light-shielding plate is folded into a funnel-shaped light-shielding cover, the side plates can be fixed together to realize the fixing of the side plates in the folded state; or, the folding positioning member is a Velcro or a button or a sticky article, and two adjacent side plates are adjacent to each other. The flexible outer covering layer between the plates is provided with a folding connection part. The two sides of the Velcro or the male and female buttons of the button or the sticky article are respectively arranged on the same side surface of the folding connection part at intervals and are shielded from light. When the plates are folded into a funnel-shaped shade body, they are glued or snapped together to realize the fixing of the side plates in the folded state.

Further, the surface of the flexible outer coating layer is also provided with a protective layer.

Further, the funnel-shaped hood body is provided with a symmetrical mounting seat for connecting to the camera lens holder or the camera lens on the peripheral side of the through hole, and the mounting seat is provided with screw holes or built-in magnets, The magnet and another magnet or metal part arranged on the bracket and the filter holder are mutually attracted together.

The present invention mainly has the following beneficial effects:

Through the above technical solutions, the present invention can fold and install the light-shielding plate on the camera lens holder or the camera lens filter holder for use. The operation is very simple, convenient and fast. When not in use, the light-shielding plate is unfolded into a plane shape, which greatly reduces The volume and space are very light, the weight is very light, it is easy to store and carry, and the structure is very simple, the production and processing are easy, the cost is also significantly reduced, which is conducive to mass production, is easily accepted and liked by photographers, and has strong market competitiveness. The market prospects are excellent.

Description of the drawings

Fig. 1 is a schematic structural diagram of Embodiment 1 of a fast-folding shading device according to the present invention;

Fig. 2 is a schematic structural view of the first embodiment of a fast-folding shading device according to the present invention after unfolding;

Figure 3 is a schematic cross-sectional view of Figure 2 along the A-A direction;

Fig. 4 is a schematic diagram of an enlarged structure of part B in Fig. 3;

Fig. 5 is a schematic structural view of the second embodiment of the fast-folding shading device according to the present invention after unfolding.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not used to limit the present invention.

The fast-folding shading device according to the present invention includes a funnel-shaped shading body 1 which is formed by folding a shading plate, and the shading plate is provided with a first folding mark 2 and The positioning member 3 is folded, and the through hole 4 is coaxial with the funnel-shaped light shield body 1.

Example one:

As shown in Figures 1 to 4, the fast-folding shading device according to the first embodiment of the present invention includes a funnel-shaped shading hood body 1. The funnel-shaped shading hood body 1 is formed by folding a shading plate. The shading plate is provided with a first folding mark 2 and a folding positioning member 3, and a through hole 4 coaxial with the funnel-shaped shading body 1. Wherein, the funnel-shaped light-shielding body 1 can be a polyhedral funnel light-shielding body, including a bottom plate 7 and a plurality of side plates 8, which are connected as a whole, as shown in Figures 1 and 2, the funnel-shaped light-shielding body 1 is a square funnel for light-shielding The cover includes an integrated bottom plate 7 and four or more side plates 8. The side plate 8 is a trapezoidal plate; the bottom plate 7 is provided with a through hole 4 in the middle, and several side plates 8 are arranged in a ring-shaped distribution on the bottom plate 7 There are first fold marks 2 between several side plates 8 and between the side plates 8 and the bottom plate 7, and a folding positioning member 3 is also provided between the side plates 8.

As shown in Figures 3 and 4, the light-shielding board includes a flexible outer covering layer 5 and a number of reinforcing sheets 6, which are separated from each other and arranged in the flexible outer covering layer 5 to form the bottom plate 7 and Side plate 8, and the flexible outer covering layer 5 forms the first fold marks 2 between the two separated reinforcing sheets 6; the flexible outer covering layer 5 may be a fiber cloth (such as: superfiber Cloth), the reinforcing sheet 6 may be a plastic sheet (such as a BPS plastic sheet) or a carbon fiber board.

As shown in Figures 1 and 2, the folding positioning member 3 includes at least two magnetic attraction members 13 (the two magnetic attraction members 13 may both be magnets, or may be magnets and metal sheets respectively), and two adjacent side plates 8 The flexible outer covering layer 5 between is provided with a folding connecting portion 9, and the magnetic attracting members 13 are arranged oppositely in the folding connecting portion 9 at intervals, and are attracted to each other when the light-shielding plate is folded into a funnel-shaped light-shielding cover 1 to realize the double folding The side plate 8 in the up state is fixed. Of course, the folding positioning member 3 can also be a Velcro or a button or a sticky article (such as nano-markless glue), and the two sides of the Velcro or the male and female buttons or sticky articles of the button are spaced apart. Ground is set on the same side surface of the folding connecting portion 9 (ie, the inner surface or the outer surface), and when the light shield is folded into a funnel-shaped light shield body 1, the side panels 8 in the folded state are fixed to each other or snapped together. .

In addition, as shown in Figures 1 and 2, the funnel-shaped hood body 1 located on the peripheral side of the through hole 4 can also be provided with a symmetrical installation for connecting to a camera lens holder (such as a lens clip) or a camera lens. The mounting seat 10 is provided with a screw hole 11, of course, the mounting seat 10 can also be built with a magnet. When the shading device is installed on the camera lens or the camera lens, the magnet and the bracket and the filter holder are provided with Another magnet or metal parts (such as metal sheets) are attracted to each other.

When using the fast-folding shading device described in the first embodiment of the present invention, the shading plate is folded first, and then installed on the camera lens holder or the camera lens filter holder. Specifically: The first fold 2 is folded, and then the folded side plate 8 and the bottom plate 7 are firmly fixed by the folding positioning member 3, and finally the bottom plate 7 (mounting seat 10) is installed and fixed on the camera lens holder or camera lens filter On the frame, the operation is very simple, convenient and fast; when not in use, the light-shielding plate can be unfolded into a plane shape, which greatly reduces the volume, takes up a small space, and is extremely light. It is easy to store and carry, and the structure is very simple, production and processing It is easy, and the cost is obviously reduced, which is conducive to mass production. Therefore, the device is easily accepted and liked by photography enthusiasts, and has extremely strong market competitiveness and excellent market prospects.

Embodiment two:

As shown in FIG. 5, the fast-folding shading device described in the second embodiment of the present invention has basically the same structure as the first embodiment, and includes a funnel-shaped shading hood body 1, and the funnel-shaped shading hood body 1 is made of a piece of light shading. It is formed by folding a plate, and the shading plate is provided with a first folding mark 2 and a folding positioning member 3, and a through hole 4 coaxial with the funnel-shaped shading cover body 1. The only difference is: the funnel-shaped light shield body 1 is a circular funnel light shield body, including a connected bottom plate 7 and two or more arc-shaped side plates 8, the bottom plate 7 and the side plates 8 are respectively circular The bottom plate and the arc-shaped side plates may specifically be: the circular funnel hood body includes two left and right arc-shaped side plates, and the left and right two arc-shaped side plates are symmetrically arranged on the circular bottom plate. And the middle of the circular bottom plate is provided with a concentric through hole 4, between two or more arc-shaped side plates and between the arc-shaped side plate and the circular bottom plate is provided with a first folding Mark 2, and a folding positioning member 3 is also provided between the arc-shaped side plates.

When using the fast-folding shading device described in the second embodiment of the present invention, first fold the shading plate, and then install it on the camera lens holder or the camera lens filter holder. Specifically: The side plate is folded along the first fold mark 2, and then the arc-shaped side plate in the folded state and the round bottom plate are firmly fixed by folding the positioning piece 3, and finally the round bottom plate (mounting seat 10) is installed and fixed on the camera The operation on the lens holder or the camera lens filter holder is very simple, convenient and fast; when not in use, the shading plate is unfolded into a plane shape, greatly reducing the volume, occupying a small space, extremely light weight, convenient for storage and carrying, and structure It is very simple, easy to produce and process, and the cost is obviously reduced, which is conducive to mass production.

In addition, the surface of the flexible outer coating layer 5 described in the first and second embodiments of the present invention is also provided with a protective layer (not shown in the figure). The protective layer may be a cloth layer (nylon cloth layer), a carbon fiber board layer, or a skin layer. Or a metal layer, which protects the flexible outer covering layer 5 from water, dirt, and damage.

As a preferred solution of the present invention, the bottom plate 7 and at least one set of two opposite side plates 8 are provided with second fold marks 12, and the bottom plate 7 and the two side plates 8 are provided with second fold marks 12 Located on the same straight line; as shown in Figure 1, Figure 2 and Figure 5, the bottom plate 7 and the upper and lower side plates 8 are provided with second fold marks 12, the specific structure may be: the bottom plate 7 and the upper and lower sides The flexible outer covering layer 5 of the board 8 is provided with two separate reinforcing sheets 6, and the second fold marks 12 located on the same straight line are formed on the bottom board 7 and the two side boards 8. In this way, when the fast-folding shading device of the present invention is not in use, after the shading plate is unfolded into a flat shape, it can also be folded in half along the second folding mark 12, which further reduces the volume and occupies space and is more convenient to store and carry.

The above are the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered This is the protection scope of the present invention.

Claims

A quick-folding light-shielding device, which is characterized in that it comprises a funnel-shaped light-shielding body (1), the funnel-shaped light-shielding body (1) is formed by folding a light-shielding plate, and the light-shielding plate is provided with a first folding The mark (2), the folding positioning member (3), and the through hole (4) coaxial with the funnel-shaped hood body (1).
The quick-folding shading device according to claim 1, characterized in that: the funnel-shaped shading hood (1) is a polyhedral funnel shading hood, including a bottom plate (7) and several side plates (8) that are connected as a whole , The bottom plate (7) is provided with a through hole (4) in the middle, a number of the side plates (8) are arranged in a ring-shaped distribution around the bottom plate (7), and between the several side plates (8) A first folding mark (2) is provided between the side plate (8) and the bottom plate (7), and a folding positioning member (3) is also provided between the side plate (8).
The quick-folding shading device according to claim 2, characterized in that: the funnel-shaped shading hood (1) comprises a bottom plate (7) and more than four side plates (8) that are connected as a whole, and the side plates ( 8) It is a trapezoidal plate.
The quick-folding shading device according to claim 1, characterized in that: the funnel-shaped shading body (1) is a circular funnel shading body, including a bottom plate (7) that is connected as a whole and two or more arc-shaped The side plate (8), the bottom plate (7) and the side plate (8) are respectively a circular bottom plate and an arc-shaped side plate, and the center of the circular bottom plate is provided with a concentric through hole (4), two A first folding mark (2) is provided between the arc-shaped side plates and between the arc-shaped side plates and the circular bottom plate, and a folding positioning member is also provided between the arc-shaped side plates (3).
The quick-folding shading device according to claim 4, wherein the circular funnel shading hood body includes two left and right circular arc-shaped side plates, and the left and right two circular arc-shaped side plates are arranged symmetrically. On the left and right sides of the circular bottom plate.
The quick-folding shading device according to claim 2 or 3 or 4 or 5, characterized in that: the bottom plate (7) and at least one set of two opposite side plates (8) are provided with second folding marks ( 12) The second fold marks (12) on the bottom plate (7) and the two side plates (8) are located on the same straight line.
The fast-folding shading device according to claim 2 or 3 or 4 or 5, characterized in that: the shading plate comprises a flexible outer covering layer (5) and a plurality of reinforcing sheets (6), and a plurality of the reinforcing sheets (6) Separately arranged in the flexible outer covering layer (5) to form the bottom plate (7) and the side plate (8), and the flexible outer covering layer (5) is located in two separate pieces The first fold marks (2) are formed between the reinforcing sheets (6).
The quick-folding shading device according to claim 6, characterized in that: the folding positioning member (3) comprises at least two magnetic attracting members (13), and the flexibility between the two adjacent side plates (8) The outer covering layer (5) is provided with a folding connection part (9), and the magnetic attraction members (13) are arranged in the folding connection part (9) at intervals and when the light shielding plate is folded into a funnel-shaped light shield body (1) The side panels (8) in the folded state are fixed together by absorbing each other; or, the folding positioning member (3) is a Velcro or button or a sticky article, between two adjacent side panels (8) The flexible outer covering layer (5) is provided with a folding connecting portion (9), and the child and mother sides of the Velcro or the male and female buttons of the button or the sticky articles are respectively arranged at intervals on the folding connecting portion (9). The same side surface is glued or snapped together when the shading plate is folded into a funnel-shaped shading cover body (1), so as to realize the fixing of the side plate (8) in the folded state.
The quick-folding shading device according to claim 7, characterized in that: the surface of the flexible outer covering layer (5) is further provided with a protective layer.
The quick-folding shading device according to claim 1 or 2 or 3 or 4 or 5 or 8, characterized in that: the funnel-shaped shading hood (1) is located on the peripheral side of the through hole (4) and is provided for connecting to A symmetrically arranged mounting seat (10) on a camera lens holder or a camera lens filter holder, the mounting seat (10) is provided with a screw hole (11) or a magnet is built-in, the magnet and the holder, and the filter holder The other magnets or metal parts are attached to each other.