KR101665114B1 - Screen - Google Patents

Abstract

The present invention relates to a screen for a projector in which the movement of a latch member is free for easy installation at a desired position, the combination between the latch member and a winding member is firmly supported, and the combination between a film member and the winding member is sound. The screen includes: a film member; a winding member which includes a first bar to which one end of the film member is inserted and combined and a second bar to which the other end of the film member is inserted and combined and onto which the film member is wound; a stopping member which includes two insertion holes to which the first bar and the second bar are inserted and maintains the winding state of the film member onto the second bar; and a latch member which includes a body unit combined to the outer surface of the first bar, a projection unit protruding from one side of the body unit, a groove-shape mounting unit formed inside the projection unit, and a ring combined to the mounting unit. The latch unit is movable in the longitudinal direction of the first bar.

Description

Screen for projectors {SCREEN}

The present invention relates to a screen for a projector,

More specifically, the present invention relates to a projector screen which is free to move the hook member so as to be easily installed at a position to be installed, securely supports the coupling between the hook member and the winding member, .

A screen that forms an image to show an image through a beam projector is needed. There are various kinds and sizes of screens used in various fields and various places.

Therefore, in order to avoid the restriction of the installation space, there is a tendency that an upright method having a supporting means for supporting the screen on the floor is used instead of the wall fixing method.

[0003] As a conventional technique, there has been proposed an image display apparatus using an image display apparatus, such as an image display apparatus, which is disclosed in Japanese Patent Application Laid-Open No. 20-0347983 (Apr. 07, 2004) (Prior Art 2). In the prior art 1, a screen is erected through a fixing table. In the prior art 2, a technique of erecting the screen through a fixing table and a supporting post is proposed.

However, in the case of such an upright method, there is a limitation in the height of the screen installation, and there is a restriction in comparison with the method of fixing the wall because it takes up a certain space.

Of course, in the conventional art 2, it is possible to mount the fixing table appropriately on the wall surface, but this is merely different from the conventional wall surface fixing method.

Therefore, the necessity of the screen which can utilize the advantage of the wall fixing method while overcoming the limitation of the installation environment which is the limit of the wall fixing method is reexamined.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

The holding member coupled to the winding member is freely movable in a state of being coupled to the winding member so that the width of the wall or the position limit of the protruding fixing member And to provide a screen capable of overcoming the above problems.

It is another object of the present invention to introduce a hook member having a unique structure so that the coupling between the hook member and the winding member can be reliably supported.

In addition, it is an object of the present invention to provide a hanger member capable of being caught without being jarred during a folding operation.

Further, it is an object of the present invention to provide a tight coupling between the film member and the winding member through introduction of a hook member having a unique structure.

The present invention having the above object

A first bar having a first end connected to one end of the membrane member and a second bar inserted into the second end of the membrane member and adapted to wind the membrane member on an outer surface thereof; A stapling member having two insertion holes into which the first bar and the second bar are inserted, the stapling member holding the film member in a state of being wound around the second bar, and a body coupled to an outer surface of the first bar, And a hook member including a protrusion formed to protrude toward the body portion side, a groove-like mounting portion formed on the protruding portion inwardly, and a ring coupled to the mounting portion, wherein the hooking member is movable in a longitudinal direction of the first bar .

The hooking member may further include a cutout formed on the opposite side of the protruding portion, and the body portion has a first spacing end portion formed by the cutout portion and a second spaced end portion.

The hooking member is formed such that the inner diameter of the hooking member is larger than the diameter of the hooking ring so that a clearance is created when the hooking member is engaged with the hooking ring. Preventing protrusion for preventing the leakage of the foreign matter.

Further, the hooking member may further include a locking protrusion formed in the first spacing end portion or the second spacing end portion or both in the inward direction of the cutout portion, wherein the locking protrusion is engaged with the opening portion side of the first bar, .

According to the present invention,

Through the introduction of the movable hook member, it is possible to overcome the limitation of various installation environments such as the width assigned to the wall fixing or the position limit of the protruding fixing member (nails, protruding portions, other hangers, etc.).

Further, the coupling between the hooking member and the winding member can be reliably supported, whereby the hooking member can be separated by an external force, or the rotation of the hooking member can be prevented unintentionally.

In addition, when the folding operation is performed, the hooking member can be caught without being caught by the hooking member, thereby minimizing the space occupied in storage or transportation and preventing the hooking of other articles.

Further, the present invention has an effect that the coupling between the film member and the winding member can be maintained even when the adhesion of the film member is deteriorated by the external force.

1 is a use state diagram of the present invention.
2 is a partial block diagram of the present invention;
3 is a detailed view of the present invention.
4 is a modification of the present invention.

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

The present invention is characterized in that the hooking member 4 is freely movable so that the hooking member 4 can be easily installed at a desired position and the coupling between the hooking member 4 and the winding member 2 is reliably supported, And the members 2 are firmly engaged with each other.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a projector screen (hereinafter referred to as a screen S) according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a use state diagram (perspective view) of the present invention, and Fig. 2 is a partial structural view (perspective view) showing the stopping member 3 and the hooking member 4 separately.

As shown in Fig. 1, the screen S comprises a film member 1, a winding member 2, a stopping member 3, and a hooking member 4.

The film member 1 corresponds to a so-called " screen sheet " in which an image of the projector is irradiated. The film member 1 has both ends engaged with the winding member 2 and wound or unwound on the winding member 2. [ do.

 The state of FIG. 1 [A] is a state of 'wrapping', a volume of which is minimized for storage or transportation, and a state of FIG. 1 [B] is a state of being 'opened'.

Such a film member 1 has a structure which is not greatly different from a conventional screen, and a detailed description thereof will be omitted.

1, the winding member 2 includes a first bar 21 into which one end of the membrane member 1 is inserted and coupled, and a second bar 22 which is inserted into the other end of the membrane member 1 and inserted into the outer surface of the membrane member 1 so that the membrane member 1 is wound thereon.

It is a feature of the present invention that the hooking member 4 is coupled to the first bar 21 so that the membrane member 1 is preferably wound so as to be wound only on the second bar 22, And the winding of the membrane member 1 in the second bar 22 is not limited to this.

In the present invention, the first bar 21 and the second bar 22 have the same structure. Accordingly, in the present specification, the description of the first bar 21 or the second bar 22 It is preferable to deduce the structure and function of the second bar 22 or the first bar 21.

Next, the stopping member 3 is configured to keep the wound state of the screen S, and as shown in Fig. 2, the first bar 21 and the second bar 22 are inserted And two insertion holes 30 are provided.

1 (A), the distance between the first bar 21 and the second bar 22 in the state in which the membrane member 1 is wound around the second bar 22 is set so that the distance between the first bar 21 and the second bar 22 The first bar 21 and the second bar 22 can be inserted through the insertion hole 30 to maintain the 'rolled' state of the screen S with the same interval.

2, the hook member 4 includes a body portion 41, a projection portion 43, a mounting portion 45, and a ring 40 (see FIG. 2) ).

Specifically, the body 41 is coupled to the outer surface of the first bar 21. As shown in FIG.

The next protruding portion 43 is formed so as to protrude from one side of the body portion 41 and the mounting portion 45 is formed inside the protruding portion 43. Here, the protruding portion 43 is formed to have the mounting portion 45, and the mounting portion 45 preferably has a groove shape corresponding to the shape of the protruding portion 43.

The next ring 40 is configured to be coupled to the mounting portion 45 and allows the screen S to be mounted on a protruding fixing member (nail, protruding portion, other hanger, etc.) provided on a wall surface or the like.

In particular, this hooking member 4 is provided movably in the longitudinal direction of the first bar 21, which is characterized in that the body portion 41 is coupled to the outer surface of the first bar 21 It is possible because it is done.

Therefore, the present screen S, through the provision of the movable hooking member 4, has the effect of overcoming the limitation of the installation place and providing the user with ease of screen installation.

In addition, the present invention can provide an effect that the spacing between the hooking members 4 can be easily adjusted when a plurality of hooking members 4 are provided as shown in FIG.

In addition, since the body portion 41 can be coupled to or separated from the first bar 21, the volume of the body portion 41 can be minimized during storage (or transportation), thereby reducing the burden of securing a space for storage (or transportation).

The present invention provides a further configuration for adding the mobility of the above-described hooking member (4).

2, the screen S further includes a cutout 47 formed on the opposite side of the protruding portion 43 of the hooking member 4 so that the body 41 is cut into the cutout 47 (411) and a second spaced-apart end (412) formed by the second spaced-apart end (411).

Specifically, the body portion 41 is provided with the first spacing end portion 411 and the second spacing end portion 412 in accordance with the formation of the cut-out portion 47. The cutout portion 47 allows the inner diameter d45 of the hooking member 4 to change by the self-elasticity of the hooking member 4, thereby adding the mobility of the hooking member 4. [

Therefore, it is preferable that the hooking member 4 is made of a material having elasticity itself, and that the hooking member 4 will have a slight elasticity in itself, considering that plastic synthetic resin is generally used. to be.

3 is a detailed view showing a cross-sectional view of the hooking member 4 to explain still another feature of the present invention.

3, the hook member 4 of the screen S is formed such that the inner diameter d45 of the mounting portion 45 is larger than the diameter d40 of the ring 40, And the clearance g is generated.

The hooking member 4 of the screen S is formed on the mounting portion 45 and protrudes inward to reduce the clearance g of the mounting portion 45 to prevent the detachment of the hook 40 44). ≪ / RTI >

The ring 40 can be easily rotated because the ring 40 is loosely coupled to the mounting portion 45 by the clearance g between the mounting portion 45 and the ring 40. [ Accordingly, when the screen S is not installed on the wall surface, the loop 40 is not upright (rotates and deflects).

However, if the inner diameter d45 of the mounting portion 45 is formed to be larger than the diameter d40 of the ring 40, the ring 40 must be detached from the mounting portion 45. However, (40) is not separated from the mounting portion (45).

The screen S can be easily pivoted in a form in which the hook 40 of the hooking member 4 can be easily stored and can be prevented from falling off the mounting portion 45 of the hook 40, have.

3, the retaining member 4 of the present screen S may be provided on the inner side of the incision 47 at either the first spacing end 411 or the second spacing end 412 or both, And the engaging protrusion 46 is engaged with the opening 211 of the first bar 21 into which the membrane member 1 is inserted.

3, the inner direction of the cutout 47 refers to the inner direction of the body 41 with respect to the cutout 47. As shown in FIG.

The first bar 21 and the second bar 22 also include an opening 211 into which the membrane member 1 is inserted and a space 213 formed by the inner wall 215 of the first bar 21 And a structure having an inner space with one side opened. Such a structure is identifiable in FIG. 3 and FIG.

The hooking protrusion 46 prevents the hooking member 4 from being arbitrarily rotated in a state where the hooking member 4 is engaged with the first bar 21. [ In other words, as described above, since the hooking member 4 is movably provided through the gap between the outer surface of the first bar 21 and the inner diameter d45 of the body portion 41, A problem may arise in the state where the hooking member 4 is engaged with the first bar 21 by the gap between the outer surface and the inner diameter d45 of the body portion 41, By means of the stopping function of the stopper 46.

Particularly, it is preferable that the release preventing protrusions 44 and the locking protrusions 46 are not formed over the entire width of the body portion 41, but are formed at positions shifted to one side.

Therefore, the movement of the ring 40 in the mounting portion 45 becomes more active through the release preventing protrusion 44 formed at the position shifted to one side, so that the ring 40 can be easily bent even with a small external force.

Friction between the first bar 21 and the engaging member 4 is generated by the engaging protrusion 46 through the engaging protrusion 46 formed at the position shifted to one side so that the movement of the hooking member 4 is reduced .

4 is a view showing a modification of the present invention.

4, the screen S according to the modification includes the first bar 21 including the opening 211, the space 213, and the central wall 217 formed at the center And is characterized in that the membrane member 1 is fixed across the center wall portion 217 and the one-side inner wall 215.

The first bar 21 has a central wall portion 217 that bisects the inner space portion 213 and the membrane member 1 is fixed over the central wall portion 217 and the one inner wall 215. The fixing of the membrane member 1 is generally carried out through an adhesive, but various modifications can be made. It is not necessary to limit the fixing through the adhesive.

The screen S according to the modification may include a supporting portion 461a in which the first locking projection 461 of the first spacing end portion 411 is inserted into the inner space 213 of the first bar 21, And a pressing portion 461b horizontally extending from the supporting portion 461a and contacting the membrane member 1 fixed to the center wall portion 217. The pressing portion 461b has one end connected to the first bar 21 And the other end pressurizes the membrane member 1 fixed to the one inner wall 215. The membrane member 1 is fixed to the inner wall 215 at one end. (The first locking protrusion 461 on the side of the first spacing end 411 and the locking protrusion 46 on the side of the second spacing end 412 are referred to as the second locking protrusion 462)

The supporting portion 461a passes through the opening 211 and extends to the space portion 213. The pressing portion 461b extends horizontally from the supporting portion 461a and is connected to the membrane member fixed to the center wall portion 217 1 is pressurized to prevent the membrane member 1 from coming off.

Since the pressing portion 461b presses the other side inner wall 215 of the first bar 21 at one end and the membrane member 1 fixed at the other end at the other side inner wall 215, When the membrane member 1 is pulled strongly to pull the membrane member 1 out of the first bar 21, the film member 1 and the winding member 2 ). ≪ / RTI >

The screen S according to the modified example has a structure in which the first locking projection 461 of the first spacing end portion 411 protrudes from the other end of the pressing portion 461b toward the opening 211 side, And an extension part 461c having a degree of flexion corresponding to the extension part (215).

This extended portion 461c prevents the film member 1 fixed to the inner wall 215 of the first bar 21 from being pressed against the film member 1 when the first locking projection 461 presses the film member 1 through the pressing portion 461b 1) can be made stronger.

Therefore, the engagement between the film member 1 and the winding member 2 can be made more rigid through the provision of the extension portion 461c so that the coupling between the film member 1 and the winding member 2 is released .

Further, the screen S according to the modified example has a structure in which the hooking member 4 is formed on the other side of the second engaging projection 462 and is formed on the second spacing end 412, And a guide projection (463) projected to be parallel to the member (1).

4, the guide protrusion 463 protrudes downward from the opposite side of the second engaging protrusion 462, that is, from the outside of the body portion 41 with respect to the body portion 41. As shown in FIG.

In other words, it is possible to impart straightness to the unfolding operation of the film member 1, thereby improving the output quality of the image irradiated by the projector . ≪ / RTI >

Due to the above-described structural features, the screen S is firmly engaged with the film member 1 and the winding member 2, and even when the adhesion of the film member 1 is lost due to an external force, .

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

S: This screen
1: membrane member
2: winding member 21: first bar
22: The second bar
3: stopping member 30: insertion hole
4: hook member 41:
411: first spaced end 412: second spaced end
43: protruding portion 44:
45: mounting portion 46:
47: incision

Claims (4)

A membrane member (1);
A first bar 21 to which one end of the membrane member 1 is inserted and inserted and a second bar 21 to which the other end of the membrane member 1 is inserted and the membrane member 1 is wound on the outer surface, A winding member (2) comprising a bar (22);
Wherein the first bar 21 and the second bar 22 are inserted into the insertion hole 30 so that the film member 1 is wound around the second bar 22, Member (3); And
A protruding portion 43 protruding to one side of the body portion 41, a groove-like mounting portion 45 formed on the inner side of the protruding portion 43, A hook member (4) comprising a ring (40) coupled to the mounting portion (45);
, ≪ / RTI >

The hooking member (4)
The first bar 21 being movable in the longitudinal direction of the first bar 21,
The inner diameter d45 of the mounting portion 45 is formed to be larger than the diameter d40 of the ring 40 so that the clearance g is generated when the mounting portion 45 is engaged with the ring 40,
Further comprising a release preventing protrusion (44) formed on the mounting portion (45) and protruding inward to prevent the release of the ring (40) by reducing the clearance (g) of the mounting portion (45)
Further comprising a cutout (47) formed on the opposite side of said projection (43)

The body portion 41 has a first spaced end 411 and a second spaced end 412 formed by the cutout 47,

The first bar 21 includes an opening 211, a space 213 formed by the inner wall 215, and a central wall 217 formed at the center,

The hooking member 4 further comprises a latching protrusion 46 formed in the first spacing end 411 or the second spacing end 412 or both in the inward direction of the cutout 47,

The locking protrusion 46 includes a first locking protrusion 461 on the first spacing end 411 side and a second locking protrusion 462 on the second spacing end 412 side,
The first locking protrusion 461 includes a support portion 461a inserted into the space 213 and a contact portion 461a extending horizontally from the support portion 461a to contact the membrane member 1 fixed to the center wall portion 217. [ A pressing portion 461b which presses the other side inner wall 215 of the first bar 21 at one end and the membrane member 1 whose other end is fixed to the one inner wall 215 and the pressing portion 461b And an extension portion 461c protruding from the other end of the first bar 21 toward the opening 211 and having a degree of bending corresponding to the inner wall 215 of the first bar 21,

The hooking member 4 is formed on the other side of the second engaging protrusion 462 and is formed on the second spacing end 412 so as to be parallel to the membrane member 1 exposed to the outside of the opening 211 Further comprising a protruding guiding projection (463).
The method according to claim 1,
The hooking member (4)
Further comprising a latching protrusion (46) formed on the first spacing end (411) or the second spacing end (412) or both (411) and 412 in the inward direction of the cutout (47)
Wherein the engaging protrusion (46) is engaged with the opening (211) side of the first bar (21) into which the membrane member (1) is inserted. delete delete

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