KR20040025624A - Dual slide display - Google Patents

Abstract

PURPOSE: A dual slide display device is provided to divide a display screen of a touch screen information apparatus, and to move the information apparatus by folding the apparatus, thereby implementing portability and making 2 display parts as one screen for user convenience. CONSTITUTION: A folder tube(20) has roll axes(22) on both side ends, respectively, and a section of the folder tube(20) is in semicircle-shaped. The first case(2) and the second case(12) are hinge-coupled with each roll axis(22) of the folder tube(20), and are folded or unfolded on the basis of the folder tube(20). Slide guides(6,16) are installed on upper and lower sides of contacted surfaces of the first case(2) and the second case(12), respectively. The first and the second display parts(4,14) are slidingly mounted on the contacted surfaces of the first case(2) and the second case(12) in folding direction along the slide guides(6,16). Fixing units are installed in predetermined positions of the first and the second display parts(4,14) and on the corresponding first case(2) and the second case(12) in order to prevent the first and the second display parts(4,14) from moving.

Description

Dual slide display {DUAL SLIDE DISPLAY}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable information terminal, and more particularly, to a dual slide display device which can realize a large screen display screen which is convenient to carry.

Recently, with the development of information and communication technology, various information devices have been released, and data input devices are also diversified according to the characteristics of the information devices.

For example, in the case of the existing desktop PC or notebook PC, the keyboard and the mouse were all input devices, but as the multimedia became more multimedia, tablets and tablets, which can easily input pictures and lines, have appeared.

In order to input data using the tablet, it is necessary to adopt a touch screen, and in the case of a tablet PC employing a touch screen, pressing a specific button displayed on the touch screen using a tablet (hereinafter referred to as a “touch fan”), the left side of the mouse The effect is the same as clicking the button (= Execute button). Also, the touch pan makes it easier to input pictures and lines than a mouse as well as a keyboard.

Such touch screens and touch pans are mainly used in personal digital assistants (PDAs), which perform various Internet applications such as sending and receiving e-mails, writing word processors, and reading e-books through the use of touch pans.

However, except for the case where the tablet PC is applied to a PDA, the screen glass is easily broken during movement, and in particular, the tablet PC is difficult to carry due to its large size.

As wireless data transmission technology and wireless content infrastructure become commercially available, smart phones with Internet, home automation, PDA, game console, GPS, and MP3 functions are expected to be popularized. A panel larger in size than a conventional mobile screen is required, but power consumption and portability problems arise. The dual slide display not only brings ergonomic convenience to the required functions, but also improves power efficiency through separate or simultaneous operation of the divided display screens. That is, an invention that satisfies portability, power efficiency, and ergonomic hardware design while being a large screen display will be required.

In addition, the UI (User Interface) function is emphasized in all the IT products such as PDA, next-generation mobile, tablet PC, etc. Users will demand a display that emphasizes mobility on a slightly larger screen.

Accordingly, an object of the present invention is to provide a dual slide display device that satisfies a large screen display, portability, power efficiency, and ergonomic hardware design.

Other objects, features and advantages of the present invention will be more clearly understood by the following detailed description with reference to the accompanying drawings.

1A is a side view showing a state before use of a dual slide display device according to Embodiment 1 of the present invention;

1B is a side view illustrating an unfolded state of the dual slide display according to the first exemplary embodiment of the present invention.

1C is a side view illustrating a sliding state of LCDs of the dual slide display according to the first exemplary embodiment of the present invention.

1D is a side view illustrating an unfolded state of a dual slide display device according to a second exemplary embodiment of the present invention.

FIG. 1E is a side view illustrating a state in which an LCD of the dual slide display device according to the second exemplary embodiment of the present invention is slid.

1F is a side view showing an unfolded state of the dual slide display according to the third embodiment of the present invention.

1G is a side view illustrating a sliding state of the LCDs of the dual slide display according to the third exemplary embodiment of the present invention.

2A is a plan view corresponding to FIG. 1A;

2B is a plan view corresponding to FIG. 1B.

2C is a plan view corresponding to FIG. 1C.

3 is a front view showing an application to a mobile of a dual slide display device according to an embodiment of the present invention.

4 is a perspective view showing a state before use of the dual slide display according to the fourth embodiment of the present invention;

5 is a side view illustrating a state in which the second LCD is sliding according to the fourth embodiment of the present invention.

Figure 6 is a side view showing an unfolded state of the first case and the second case according to the fourth embodiment of the present invention.

FIG. 7 is a side view illustrating a state in which the first case is rotated 180 ^° in the expanded state of FIG. 6 according to the fourth embodiment of the present invention. FIG.

8 is a side view illustrating a state in which the second LCD is slid in the state of FIG. 7 according to the fourth embodiment of the present invention.

9 is an exploded perspective view showing the connection of the first case and the second case according to the fourth embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

2: Case 1 4: The first LCD

6,16: Slide Guide

12: second case 14: the second LCD

20: folder barrel 22: roll axis

24: function button 26: speaker

28: touch pen storage box 30: dual slide display device

122: hinge barrel 200: function button

In order to achieve the above object, firstly, the present invention is a folder tube having a semicircular cross section and a roll shaft on each end of the cut surface, and hingedly coupled to each roll shaft of the folder barrel. A first case and a second case which are folded or unfolded in the center, a slide guide installed at upper and lower portions of facing surfaces of the first case and the second case, and the first case and the second case. First and second display parts slidably mounted on respective facing surfaces of the case in a direction in contact with each other along the slide guide, and the first and second display parts to prevent flow of the first and second display parts. The present invention provides a dual slide display device including a fixing portion provided at a predetermined portion of a component and corresponding portions of the first and second cases.

Secondly, the present invention is the same as the first configuration except for the configuration described below. That is, the slide guide is installed only on the surface of the second case, that is, the lower part, so that the first display part is fixed and the dual slide display device slides only the second display part, so that only the second display part is slid upward. The fixing means is installed only on the second display part and the second case part corresponding thereto.

Thirdly, the present invention is the same as the first configuration except for the configuration described below. According to the present invention, both the first display part and the second display part are slid upwardly along the slide guide on each of the facing surfaces of the first case and the second case so that the dual slide display device slides upward. Characterized in that the configuration of the first and second display parts mounted.

Here, the height of the case is equal to the height of the folder so that the first and second cases are horizontal to the bottom surface together with the passage through the folder for stability when unfolded.

Lastly, the present invention has a hinge cylinder having a rotation space portion in the center, a central axis mounted to the rotation space portion of the hinge cylinder and connected to the lower groove of the first case, and a groove coupled to the central axis at the lower end thereof. A first case which is rotatable about an axis and is folded or unfolded about the hinge barrel, and a second case which is folded or unfolded about the hinge barrel with a hinge shaft portion hingedly coupled to the hinge barrel; A first display part fixedly mounted on an upper side of facing surfaces of the first case and the second case, a slide guide provided on a rear surface of the second case facing the first case; A second display part mounted to slide upward along the slide guide, and a predetermined portion of the second display part to prevent the second display part from flowing; And a fixing means provided on a rear surface of the second case facing the first case of the second case.

The first and second cases are provided with function buttons, a speaker, and a touch pan storage box in the exposed end portions of the first and second display parts sliding in contact with each other. Since only the second case part is exposed, the device having the configuration in which only the second display component is slid upward is provided with function buttons, a speaker, and a touch pan storage box in the exposed end thereof. In addition, the device configured to rotate in the unfolded state of the first case is provided on the surface of the second case facing the first case, the function buttons, the speaker and the touch fan storage box, the second case is exposed by sliding The function button is provided in the end part, and the function button is also provided in the lower end part of a 2nd display component.

The first and second display parts are LCDs and include slide assisting means corresponding to the slide guides. The fastening means is a hook.

In addition, in a device configured to rotate in a state where the last first case is unfolded, a dual slide display device including a digital camera at an upper end portion of the second display component may be provided.

According to the present invention, since the display screen is divided into two and moved, it is easy to carry. In addition, when using, the display screen is unfolded and at the same time, the sliding screen is minimized to minimize the gap, thereby realizing a large area display screen. It is convenient to use.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

(Example 1)

1A to 1C are diagrams for describing a dual slide display device according to a first embodiment of the present invention, in which FIG. 1A is a state before use, FIG. 1B is an unfolded state, and FIG. 1C is a state of sliding LCDs. Each is a cross-sectional view.

As shown, the dual slide display device 30 of the present invention has a display part, for example, a first case 2 and a second case 12, each of which is equipped with an LCD (LCD), which are hingedly coupled. It contains a folder tube (20).

The folder 20 has a semicircular cross section, and includes roll shafts 22 at each of the two ends, and the first and second cases 2 and 12 have a center of the folder cylinder 20 on the roll shaft 22. Hinged to be folded or unfolded.

The first case 2 and the second case 12 are mounted with first and second LCDs 4 and 14, which are display components, on respective facing surfaces. In addition, slide guides 6 and 16 are installed on upper and lower portions of facing surfaces for stable sliding of the first and second LCDs 4 and 14, and the slide guides 6 and 16. Correspondingly, the first and second LCDs 4 and 14 are preferably provided with slide assist means (not shown).

The first case 2 and the second case 12 are the same as the folder 20 when the height of each part coupled to the roll shaft 22 of the folder barrel 20 is unfolded for stability when unfolded Or to a similar height.

The first and second LCDs 4 and 14 have fixing means at predetermined portions to prevent flow during movement or use, and auxiliary fixing means are provided at corresponding portions of the first and second cases 2 and 12. Is installed. For example, the fastening means is a hook 8, 18, and the auxiliary fastening means is a groove (not shown).

A method of using the dual slide display device of the present invention having such a configuration is as follows.

First, before the use of the dual slide display device 30, the first case 2 and the second case 12, on which the LCD parts 4 and 14, which are the display parts, are mounted, the folder case 20 is opened. It is folded to the center and moved to this state (see FIG. 1A). At this time, it is preferable to fix the hook so that each of the CDs 4 and 14 does not flow during the movement.

Here, the dual slide display device 30 of the present invention is divided into two display screens, but although the thickness is increased, the size thereof can be reduced to half of the conventional level, and therefore, it is easier to carry than the conventional type. In addition, ergonomic design is possible when applying hair work.

Subsequently, the first case 2 and the second case 12 are unfolded so as to be horizontal to the bottom surface with respect to the folder barrel 20 (see FIG. 1B).

Then, the CDs 4 and 14 mounted on each of the first case 2 and the second case 12 are slid along the respective slide guides 6 and 16 so that adjacent sections are in contact with each other. (See FIG. 1C) In this case, the function buttons 24 and the speaker 26 provided at the ends of the cases 2 and 12 by sliding the respective LCDs 4 and 14 are made. And a touch pan storage box 28, etc., to expose a large area display screen by operating the function buttons 24 by the touch fan (not shown) placed in the touch pan storage box. The function button, the speaker, the touch pan storage box may be changed, as shown, and furthermore, if necessary, the touch fan storage box may not be included in the configuration.

Here, since the dual slide display device 30 of the present invention attaches two LCDs 4 and 14 to implement a large screen, character recognition is easy and thus convenient to use.

In the dual slide display device of the present invention, when the sliding of the LCD, the exposed case portion is to absorb the stress applied to one side of the LCD, while the opposite case portion is the stress applied to the other side of the LCD Since there is no part to absorb, the other side of the LCD may be exposed to an external impact.

However, since the folder serves to absorb external shocks, the other side of the LCD can also be protected from external shocks, and the other side of the LCD can be protected from the external shocks by the folder during the movement. Each of the left and right sides of the screen of the second LCD can be designed as a narrow mechanical device, thereby improving the connectivity of the screen when the user views the screen.

Meanwhile, in the above, the case in which the first case and the second case are arranged left and right has been illustrated and described. However, the first case and the second case may be arranged up and down. In this case, the first case and the second case are spread up and down, and the LCDs provided in each of the first case and the second case are slid up and down, respectively, to form a large and long display screen vertically.

In addition, although the above has been described and described in the case where the dual slide display device of the present invention is used as a PDA, it can also be used as a mobile.

In detail, FIG. 3 is a front view illustrating an application of the dual slide display device to a mobile device according to an exemplary embodiment of the present invention. As shown in FIG. 3, when the first case and the second case are unfolded with respect to the folder barrel 20. In that state, you can use it as a mobile.

In this case, the LCD installed in the upper second case functions as a liquid crystal display displaying various information as in a normal mobile, and the LCD installed in the lower first case displays various function buttons by a touch method. It functions as a touch pad to be operated.

In addition, the antenna may be located at the top of the second case 12, for example, while not shown, it may be located in the folder 20.

Meanwhile, although the above-described embodiments have been shown and described with respect to a folder type, it is also applicable to a bar type. That is, the bar type dual slide display device has a structure in which the LCDs are slidably arranged above and below the integrated case.

(Example 2)

1D to 1E are diagrams for describing a dual slide display device according to a second exemplary embodiment of the present invention. FIG. 1D is a sectional view showing an expanded state, and FIG. 1E is a state in which LCDs are slid.

In the first embodiment, the slide guide is installed only on the lower side of the surface facing the surface, that is, on the right side of the drawing, and the first display part is fixed and only the second display part slides upward. Different. Hereinafter, only the configuration different from the first embodiment will be described. Therefore, matters other than the structure described below, the function, the function, and the usage method of the structure are the same as that of Example 1. FIG.

The slide guide 16 is installed at the lower portions of the facing surfaces for the stable sliding of the second LCD 14, which is the second display component, and the second CD 14 corresponds to the slide guide 16. Preferably, slide assistance means (not shown) are provided. The second LCD 14 has a fixing means at a predetermined portion to prevent flow during movement or use, and an auxiliary fixing means is installed at a portion of the second case 12 corresponding thereto. For example, the fastening means is a hook (not shown) and the auxiliary fastening means is a groove (not shown).

A method of using the dual slide display device of the present invention having such a configuration is as follows.

First, before the use of the dual slide display device 30, the first case 2 and the second case 12, on which the LCD parts 4 and 14, which are the display parts, are mounted, the folder case 20 is opened. It is folded to the center and moved to this state (see FIG. 1A). At this time, it is preferable to fix the hook so that the CD 14 does not flow during the movement.

Subsequently, the first case 2 and the second case 12 are unfolded so as to be horizontal to the bottom surface with respect to the folder barrel 20 (see FIG. 1D).

Then, the LCD 14 mounted on the second case 12 is slid along the slide guide 16 so that adjacent sections are in contact with each other, and as a result, one large area display screen is made (see FIG. 1E). At this time, the function buttons, the speaker and the touch pan storage box provided at the end of the case 12 are exposed by sliding the LCD 14, and through the manipulation of the touch fan or the function buttons placed in the touch fan storage box. Implement a large screen display.

(Example 3)

1F to 1G are diagrams for describing a dual slide display device according to a third exemplary embodiment of the present invention, in which FIG. 1F is an expanded state, and FIG. 1G is a cross-sectional view illustrating a state in which LCDs are slid.

The first embodiment differs from the first embodiment in that both the first display component and the second display component are configured to slide upward. The other configuration is the same as that of the first embodiment. The matters other than the functions, functions, and usage methods of the configuration related to the third embodiment described below are the same as those of the first embodiment, and therefore, only different configurations from the first embodiment will be described.

The first case 2 and the second case 12 are unfolded so as to be horizontal to the bottom surface with respect to the folder barrel 20 (see FIG. 1F).

Then, the LCDs 4 and 14 mounted on each of the first case 2 and the second case 12 are brought into contact with each other by sliding upwards along the respective slide guides. The area display screen is made. (See FIG. 1G.) At this time, the function buttons, the speaker and the touch pan storage box provided at the end of the case 12 are exposed by the upward sliding of each of the LCDs 4 and 14. A large area display screen is realized through manipulation of the touch fan or function buttons 24 placed in the touch fan storage box.

(Example 4)

4 to 8 are views for explaining a dual slide display device according to a fourth embodiment of the present invention, FIG. 4 is a state before use, FIG. 5 is a state where the second LCD is slid in a closed state, and FIG. 6 7 is an unfolded state, FIG. 7 is a state in which the first case is rotated 180 ^° in an unfolded state, and FIG. 8 is a cross-sectional view illustrating a state in which the second LCD is slid in FIG.

As shown, the dual slide display device 30 of the present invention has a display part, for example, a first case 2 and a second case 12, each of which is equipped with an LCD (LCD), which are hingedly coupled to each other. Hinge bin 122 is included (see FIG. 4).

The hinge cylinder 122 is coupled to the hinge shaft portion 123 coupled to one end of the first case 102 and the second case 112, the first case 102 and the second case 112 is The hinge cylinder 122 is folded or unfolded about the center (see FIGS. 4 and 9).

A rotation space portion 140 is formed at the center of the hinge cylinder 122, and a central axis 130 is coupled thereto (see FIG. 9). The central axis coupled to the rotation space portion of the hinge cylinder is a first case. It is connected to the groove (not shown) of the lower end of, so that in the unfolded state the first case 102 can rotate 180 ^o about the central axis.

The first LCD 104, which is the first display part, is fixedly mounted on an upper side of the first case among the facing surfaces of the first case 102 and the second case 112. A second LCD 114, which is a second display part, is mounted on a rear surface of the second case 112 facing the first case 102. In addition, a slide guide (not shown) is installed on the rear surface of the second case facing the first case for the stable sliding of the second LCD, and the slide assistance means (not shown) corresponding to the slide guide. Is preferably provided.

The second LCD 114 has a fixing means (not shown) in a predetermined portion to prevent flow during movement or use, and an auxiliary fixing means is installed at a portion of the second case 112 corresponding thereto. For example, the securing means is a hook (not shown), and the secondary securing means is a groove (not shown).

In addition, the digital camera lens 300 may be mounted on the second LCD to perform a camera function. When using a digital camera, the screen of the second display part can be used and the first case can be opened to take a picture while viewing the screen using the display of the first display part. The mounting position of the digital camera lens may be different from the above position, and it is also possible to attach and detach the lens.

A method of using the dual slide display device of the present invention having such a configuration is as follows.

First, in the dual slide display device of the present invention, the first case 102 and the second case 112, on which the LCD parts 104 and 114, which are the display parts, are mounted, are folded around the hinge cylinder 122. In this state, it is moved. (See FIG. 4) In this case, it is preferable to fix the hook so that the CDs 104 and 114 do not flow during the movement.

Here, the dual slide display device of the present invention is divided into two display screens, but although the thickness is increased, the size can be reduced to half the level of the related art, which is easier to carry than conventional. In addition, ergonomic design is possible when applying hair work.

In a state in which the first case 102 and the second case 112 are folded, the second LCD is installed on the rear surface of the second case facing the first case, and the multimedia function is performed using the function button 200. Can be performed. For example, you can perform functions such as digital cameras, message checking, GPS, games, e-books, and video viewing. Further, by using the keypad exposed by sliding the second LCD 114 upwards, it is possible to perform not only the above functions but also a wider variety of multimedia functions such as the Internet. (See Fig. 5)

Subsequently, the first case 102 and the second case 112 are unfolded so that the first case 102 and the second case 112 are horizontal to the bottom surface with respect to the hinge cylinder 122 (see FIG. 6). The LCD 104 can be used as a display to perform multimedia functions such as mobile and CDMA.

Furthermore, in the unfolded state, the first case 102 is rotated 180 ^° based on the central axis 130, and then the second LCD 114 mounted on the rear surface of the second case 112 is slid upward. The first LCD 104 is brought into contact with one another to produce one large area display screen. (Refer to FIG. 8) At this time, the function buttons and the like provided at the end of the rear surface of the second case 112 are exposed by sliding of the second LCD 114. The display screen of the large area is operated by operating the function buttons. Implement Here, the dual slide display device of the present invention attaches two LCDs 104 and 114 to implement a large screen, so that character recognition is easy and thus convenient to use.

In addition, although the above-described and described the case where the dual slide display device of the present invention is mainly used as a PDA, it can also be used as a mobile.

In detail, FIG. 6 illustrates an application of the dual slide display device to a mobile device according to an exemplary embodiment of the present invention. As shown in FIG. 6, the first case 102 and the second case 112 are hinged 122. When unfolded around the center, you can use it as a mobile.

In this case, the first LCD 104 installed in the upper first case 102 functions as a liquid crystal display displaying various types of information as in a normal mobile, and various function buttons are provided in the lower second case 112. Are installed and used.

In addition, the antenna may be located, for example, in the case, while not shown, it may be located in the hinge barrel 122.

Meanwhile, although the above-described embodiments have been shown and described with respect to a folder type, it is also applicable to a bar type. That is, the bar type dual slide display device has a structure in which the LCDs are slidably arranged above and below the integrated case.

As described above, the present invention is easy to carry by folding and moving the display screen of a touch screen information device such as a next-generation mobile, PDA, tablet PC, etc. in two, and in use, the two display parts are slid through sliding ( It is also convenient to use by making the gap) into one screen with a small and large area.

As a result, the present invention can not only improve the portability of the touch screen information device using a touch fan, but also increase the ease of use by minimizing the gap between LCDs, and is very advantageously applied to various portable information terminals. can do. In addition, the antenna can be installed in a folder other than the top of the second case to further improve product design and ease of use.

In addition, this invention can be implemented in various changes within the range which does not deviate from the summary. The present invention has been described with reference to the preferred embodiments, and is not limited thereto, and one of ordinary skill in the art should recognize that various modifications and changes can be made to the present invention without departing from the appended claims.

Claims (10)

A folder barrel having a semicircular cross section and a roll shaft 22 at each end of the cut surface; A first case (2) and a second case (12) hingedly coupled to each roll shaft of the folder barrel and folded or unfolded about the folder barrel; Slide guides (6, 16) provided in each of the upper and lower portions of the facing surfaces of the first case and the second case; First and second display parts 4 and 14 mounted on respective facing surfaces of the first case and the second case so as to slide in contact with each other along the slide guide; And And a fixing means provided at predetermined portions of the first and second display components and corresponding first and second case portions to prevent flow of the first and second display components. Display. A folder barrel having a semicircular cross section and a roll shaft 22 at each end of the cut surface; A first case (2) and a second case (12) hingedly coupled to each roll shaft of the folder barrel and folded or unfolded about the folder barrel; A slide guide (16) installed at a lower portion of facing surfaces of the first case and the second case; A first display part (4) fixedly mounted to an upper portion of facing surfaces of the first case and the second case; A second display part 14 mounted on a lower portion of facing surfaces of the first case and the second case so as to slide upward along the slide guide; And And a fixing means provided at a predetermined portion of the second display component and a second case portion corresponding thereto to prevent the flow of the second display component. A folder barrel having a semicircular cross section and a roll shaft 22 at each end of the cut surface; A first case (2) and a second case (12) hingedly coupled to each roll shaft of the folder barrel and folded or unfolded about the folder barrel; Slide guides (6, 16) provided in each of the upper and lower portions of the facing surfaces of the first case and the second case; First and second display parts 4 and 14 mounted on respective facing surfaces of the first case and the second case so as to slide upward along the slide guide; And And a fixing means provided at predetermined portions of the first and second display components and corresponding first and second case portions to prevent flow of the first and second display components. Display. A hinge cylinder 122 having a rotation space portion 140 at a central portion thereof; A central shaft (130) mounted to the rotation space of the hinge barrel and connected to a lower end groove of the first case; A first case (102) having a groove coupled to the central axis at a lower end thereof and rotatable with respect to the central axis and being folded or unfolded about the hinge cylinder; A second case 112 having a hinge shaft portion 123 hingedly coupled to the hinge cylinder and folded or unfolded about the hinge cylinder; A first display part 104 fixedly mounted on an upper portion of facing surfaces of the first case and the second case; A slide guide installed on a rear surface of the second case facing the first case; A second display part 114 mounted to slide upward along the slide guide; And And a fixing means provided on a rear surface of a surface facing the first case of the second case and a predetermined portion of the second display component to prevent the flow of the second display component. Display. The method of claim 2, wherein the first and the second case is in the end exposed by sliding so that the first and second display parts contact each other, wherein the second The case is a dual slide display device, characterized in that the function button, the speaker and the touch pan storage box is provided in the exposed end of the second display component is slid upward. 5. The dual slide display device of claim 4, further comprising: a second case face facing the first case, an end portion at which the second display part slides to be exposed, and a function button at a lower end of the second display part. The dual slide display device according to claim 6, further comprising a digital camera lens (300) on an upper end of the second display component. The dual slide display device according to any one of claims 1 to 4, wherein the first and second display parts are LCDs. The said 1st and 2nd display component or the said 2nd display component of Claim 2 corresponding to the said slide guide, The slide assistance means in any one of Claims 1, 3, or 4. Dual slide display device comprising a. The dual slide display device according to any one of claims 1 to 4, wherein the fixing means is a hook.