TWM523132U - Electronic device with multi-directional rotation function - Google Patents

Abstract

An electronic device is provided. The device comprises a screen, a host component, a supporting base and a supporting rotational structure. The supporting base comprises a placement space, a side and an opening. The opening is connected to the placement space, and the host component is installed in the placement space via the opening. The supporting rotational structure comprises a first pivot assembly, a second pivot assembly and a third pivot assembly. The first pivot assembly disposed on the side is provided for rotation in a first axial. The second pivot assembly disposed on the first pivot assembly is provided for rotation in a second axial. The third pivot assembly disposed on the second pivot assembly and connected to the screen is provided for rotation in a third axial.

Description

Multi-directional rotating electronic device

The present invention relates to a multi-directional rotating electronic device, in particular to an electronic device capable of supporting the rotating structure with three pivoting components capable of rotating in three axial directions, and capable of appropriately setting the screen according to operational requirements. .

The so-called point-of-sale or point-of-sale (POS) system technology used in the previous generation was mainly an application in the retail industry that used barcode reading to make the checkout faster and reduce errors in manual typing. In addition, the point-of-sale (POS) system provides services for the catering industry to perform processing such as ordering, dining, and checkout; the content includes ordering on a screen and ordering by wireless signal. The data is sent to the kitchen for meal preparation, the order information is sent to the counter for checkout and printing of invoices or details.

Moreover, the current point-of-sale (POS) system also constructs a database that forms a connection, so that records such as transaction data, inventory status, and sales status can be electronically and informationized, thereby allowing managers Instant query and understanding for operational service improvement, product development or related decisions.

With the continuous enhancement of electronic device functions and mobile computing technologies, the application of traditional point-of-sale (POS) systems has been continuously developed and expanded. Therefore, many companies today have renamed the point-of-sale (POS) system that they used to be called a service-based point of service system. In addition to restaurants, retail, especially supermarkets and convenience stores, the hotel and service industries have also begun to be widely used.

According to the current technology, by integrating a plurality of function modules such as a screen function, a database management function, and a network connection function into an end point sales device, the store can be completed by a small number of people. In addition to various tasks such as online order inquiry, electronic consumption and operation management, the screen setting also effectively reduces the space occupied by the assembly and display devices of the conventional small display and input keyboard.

In the case of convenience stores, the industry usually wants to display the items to be sold as much as possible in a limited display space, but the setting of the checkout counter and its cash register (ie, the terminal sales device) is still necessary. Therefore, based on the concept of providing consumers with better service, how to design the type of the endpoint sales device while taking advantage of the in-store space, can simultaneously consider the clerk's working environment, guide the consumer's queue, and even It is beneficial to consumers and clerk to watch the different conditions such as checkout or operation on the screen. It is indeed a topic worthy of attention in the development of technology for endpoint sales devices.

The purpose of this creation is to propose a multi-directional rotating electronic device. The supporting rotating structure of the electronic device is provided with three pivoting components capable of rotating in three axial directions, so that the screen can be appropriately arranged according to operational requirements, thereby enabling the clerk's working environment and the storefront shopping space to be Was effectively improved.

The present invention is an electronic device comprising: a screen, a host, a support base and a supporting rotating structure. The support base has an accommodating space, a side surface and an opening. The opening is connected to the accommodating space, and the main body is assembled in the accommodating space via the opening. The support rotating structure comprises: a first pivoting component, a second pivoting component and a third pivoting component. The first pivoting component is disposed on the side for providing rotation along a first axial direction; the second pivoting component is disposed on the first pivoting component for providing along a second axis The third pivoting assembly is disposed on the second pivoting assembly and coupled to the screen for providing rotation in a third axial direction.

In order to better understand the above and other aspects of the present invention, the following specific embodiments, together with the drawings, are described in detail below:

100‧‧‧Electronic devices

10‧‧‧ screen

20‧‧‧Host

21‧‧‧Hands

22‧‧‧Locking components

23‧‧‧Transport interface

30‧‧‧Support base

301‧‧‧ accommodating space

31‧‧‧ top surface

32‧‧‧ bottom

33‧‧‧ side

34‧‧‧ openings

35‧‧‧ positive

40‧‧‧Support rotating structure

41‧‧‧First pivoting assembly

410‧‧‧First shaft

411‧‧‧First pivoting piece

412‧‧‧Second pivot piece

42‧‧‧Second pivoting assembly

420‧‧‧second shaft

421‧‧‧ Third pivot piece

4210‧‧‧First pivot bracket

422‧‧‧Support link

4220‧‧‧Second pivot bracket

4221‧‧‧ tablet

43‧‧‧ Third pivoting assembly

430‧‧‧ third shaft

431‧‧‧fourth pivot piece

50‧‧‧Flat bottom plate

51‧‧‧Snap slot

D1‧‧‧first axial direction

D2‧‧‧second axial

D3‧‧‧ Third axial direction

FIG. 1 is an exploded perspective view of an electronic device 100 according to a preferred embodiment of the present invention.

FIG. 2A is a perspective view of the electronic device 100 assembled at an angle.

FIG. 2B is a perspective view of the electronic device 100 assembled at another angle.

Figure 3A is a side view of the support rotating structure 40.

FIG. 3B is a schematic view showing the support rotating structure 40 disposed on the side surface 33 of the support base 30.

FIG. 3C is a schematic view showing the support rotating structure 40 disposed on the screen 10.

FIG. 4A is a schematic diagram showing the second pivoting assembly 42 rotated 45 degrees relative to the electronic device 100 of FIG. 2A.

Figure 4B is a schematic view of another angle according to Figure 4A.

FIG. 5A is a schematic view showing the second pivoting assembly 42 rotated 90 degrees with respect to the electronic device 100 of FIG. 2A.

Fig. 5B is a schematic view at another angle according to Fig. 5A.

FIG. 6A is a schematic diagram showing the first pivoting assembly 41 rotated 45 degrees relative to the electronic device 100 of FIG. 5A.

Fig. 6B is a schematic view at another angle according to Fig. 6A.

FIG. 7A is a schematic diagram showing the third pivoting assembly 43 rotated 90 degrees with respect to the electronic device 100 of FIG. 6A.

Figure 7B is a schematic view at another angle according to Figure 7A.

The embodiments are described in detail below, and the embodiments are only intended to be illustrative, and are not intended to limit the scope of the invention. In addition, the drawings in the embodiments omit elements that are unnecessary or can be completed by the usual techniques to clearly show the technical features of the present invention.

The implementation of the multi-directional rotating electronic device of the present invention will now be described in the preferred embodiment. Please refer to FIG. 1 to FIG. 2B , wherein FIG. 1 is an exploded perspective view of an electronic device 100 according to a preferred embodiment; FIG. 2A is a perspective view of the electronic device 100 assembled at an angle; FIG. 2B is a perspective view of the electronic device 100 assembled at another angle. As shown in the figures, the electronic device 100 of this embodiment mainly includes a screen 10, a host 20, a support base 30, a supporting rotating structure 40 and a flat bottom plate 50, wherein the main body 20 and the support The rotating structure 40 is disposed on the supporting base 30. The planar bottom plate 50 is assembled under the supporting base 30 to provide a load, and the screen 10 is disposed on the supporting base 30 via the supporting rotating structure 40. on.

As described above, the electronic device 100 proposed by the present invention is an electronic device that can be used on a point-of-sale (POS) system, that is, a software that the host can use to execute an endpoint sales system, thereby providing A wide variety of applications in the retail, catering or service industries described by the technology. In this embodiment, the electronic device 100 is described as being implemented in a counter in a general supermarket or a convenience store, but the concept of the present creation is not limited thereto. For example, in the concept of the present invention, an electronic device can be applied as a personal desktop device, in particular, for example, an all-in-one computer device.

On the other hand, the screen 10 is a touch screen, that is, in addition to being capable of image display, the screen is also provided by the user for touch operation, so that the assembly and the display can be reduced first and can only be used for image display. The space occupied by the display and the input keyboard. The host 20 is capable of performing an end point sales (POS) function according to the situation in which the screen 10 is operated.

As shown in FIG. 1, it can be seen that the flat bottom plate 50 has a snap slot. The size of the snap-in slot 51 is corresponding to the shape of a bottom surface 32 of the support base 30, and is designed such that the bottom surface area of the planar bottom plate 50 is larger than the bottom surface of the bottom surface 32. When the bottom surface 32 is engaged with the engaging slot 51 and the supporting base 30 is assembled on the flat bottom plate 50, the supporting base 30 can form a stable engagement on the flat bottom plate 50.

As described above, the planar bottom plate 50 is mainly provided to provide a more stable load so that the components thereon are not easily overturned. In general, the size of the flat bottom plate 50 needs to be considered for the size of the screen 10. The larger the screen requires a larger or correspondingly shaped bottom plate or base for stable placement. In this embodiment, the planar bottom plate 50 is designed to be movable in a movable manner, but the concept of the present creation is not limited thereto. For example, the planar bottom plate 50 can be manually assembled under the support base 30 by means of a screw bolt, or can be fixed by clamping the support base 30 with the table top by using other clamping components.

Of course, the larger the flat floor 50 will take up more work space. It should be noted that in this embodiment and each figure, the planar bottom plate 50 is provided for implementation. However, in other embodiments, the setting may be omitted; the setting is determined by the application requirements. Alternatively, the shape of the support base 30 can be changed (for example, the cross-sectional area of the bottom surface 32 is designed to be wider than the upper body of the upper base).

Therefore, one of the features of the present invention is the structural design of the electronic device 100 in a stored state, that is, the state of the product when the package is sealed, which can reduce the characteristics of the space occupied by the overall device. The screen 10 shown in FIGS. 1 to 2B is in the stored state, that is, the screen 10 and one side 33 of the support base 30 are parallel to each other. In the case where the electronic device 100 is provided with the planar bottom plate 50, since the supporting rotating structure 40 has a certain length, the space between the screen 10 and the supporting base 30 can provide the flat bottom plate 50 in the packaging seal. Place it in the box.

For example, if the size of the planar bottom plate 50 does not exceed the screen 10 The length and width of the overall sealing will be about the length and width of the screen 10, and the thickness of the sealing box is about the thickness of the screen 10, the length of the supporting rotating structure 40, and the support base 30. The sum of the widths. In this way, it can effectively reduce the space occupied by the overall device when the package is sealed, and at the same time, it is also advantageous for the operator to perform too complicated assembly steps when preparing to use the device.

On the other hand, the support base 30 is a casing in addition to the weight for supporting the screen 10. The support base 30 has a top surface 31, an accommodating space 301, an opening 34 and a front surface 35. The opening 34 is connected to the accommodating space 301, and the main body 20 is assembled through the opening 34. In the accommodating space 301. As shown in FIGS. 1 and 2A, the main body 20 has a handle 21 for providing an operator's grip to facilitate pushing the main body 20 into the support base 30 or from the support base 30. Pull out. In addition, the main assembly 20 assembled in the accommodating space 301 can be fixed to the support base 30 by a locking component 22, such as a screw, so as not to be loose.

In addition, the electronic device 100 further includes at least one transmission component (not shown in the drawings, such as a power line, a network route, or a signal transmission line, etc.), and the host 20 can be exposed by one of the assembled openings 34. The transmission interface 23 is configured to provide electrical connection to the at least one transmission component; for example, the screen 10 is electrically connected to the transmission interface 23 by one of the transmission components.

Another feature of the present invention is the structural design of the support rotating structure 40, and thus the display or display of the screen 10 in a variety of different angles, directions or positions in the space. As can be seen from Figures 1 to 2B, the support rotating structure 40 is located at a corner of the side surface 33 where the top surface 31 meets. In this embodiment, the support rotating structure 40 is disposed at this corner in order to produce a better turning effect because the screen 10 still has a certain length and width. If the rotation of the screen 10 is not caused to collide with the support base 30, the support rotation structure 40 is disposed at an upper position and a relatively edge position, which is a better design, and is also advantageous for reducing the overall device when the package is sealed. The space occupied.

Of course, the concept of the present invention is not limited thereto. In other embodiments, the support rotating structure 40 may be disposed at other positions of the side surface 33. For example, if the overall length of the supporting rotating structure 40 is designed to be longer, for example, more than half of the width of the side surface 33, the screen 10 does not collide with the supporting base 30 when rotated, so that The support rotating structure 40 is disposed at a center of the side surface 33 or at a position far from the top surface 31. Detailed structural features of the supporting rotating structure 40 will be further described later.

Please refer to FIG. 3A to FIG. 3C at the same time, wherein FIG. 3A is a side view of the supporting rotating structure 40; FIG. 3B is a schematic view showing the supporting rotating structure 40 disposed on the side 33 of the supporting base 30; FIG. 3C is a schematic view showing the support rotating structure 40 disposed on the screen 10. As shown in the figures, in this embodiment, the supporting rotating structure 40 mainly includes a first pivoting assembly 41, a second pivoting assembly 42 and a third pivoting assembly 43; The first pivoting component 41 is disposed on the side surface 33, the second pivoting component 42 is disposed on the first pivoting component 41, and the third pivoting component 43 is disposed on the second pivoting component. The component 42 is connected to the screen 10.

In this embodiment, the first pivoting component 41, the second pivoting component 42, and the third pivoting component 43 are respectively provided along a first axial direction D1, a second axial direction D2, and a third The rotation of the axial direction D3. In the schematics of Figs. 3A to 3C, or in the illustrations of Figs. 1 to 2B, the supporting rotating structure 40 is all in an original position (or in the stored state). In this state, the first axial direction D1 is overlapped with the third axial direction D3 and is in the same direction; but with the rotation of the second axial direction D2, the third axial direction D3 will not be the first The axial direction D1 is in the same direction, but an angle is formed. However, regardless of the rotational changes of the pivoting members, the first axial direction D1 is perpendicular to the side surface 33, and the second axial direction D2 is perpendicular to the first axial direction D1, and the first The triaxial D3 series is perpendicular to the second axial direction D2.

As described above, in the embodiment, the first pivoting assembly 41 includes a first pivoting piece 411, a second pivoting piece 412, and a first rotating shaft 410. among them, The first pivoting piece 411 is disposed on a pivot hole (not shown) of the side surface 33. The second pivoting piece 412 is attached to the side corresponding to the first pivoting piece 411. 33, the first rotating shaft 410 is disposed through the first pivoting piece 411 and the second pivoting piece 412 and indicates the first axial direction D1.

Secondly, in this embodiment, the second pivoting assembly 42 includes a third pivoting piece 421, two second rotating shafts 420 and a supporting link 422. The third pivoting piece 421 is fixed to the second pivoting piece 412 and pivotally connected to the first rotating shaft 410 to be pivoted by the first rotating shaft 410, and the third pivoting The two ends of the piece 421 are respectively formed with a first pivoting bracket 4210; the two second rotating shafts 420 are respectively disposed on the two first pivoting brackets 4210 and indicate the second axial direction D2; and the supporting link 422 A second pivoting bracket 4220 is formed at each of the two ends, and the two second pivoting brackets 4220 are respectively pivotally connected to the two first pivoting brackets 4210 and the two second rotating shafts 420 to enable the two second rotating shafts. 420 rotates for the axis.

Moreover, in this embodiment, the third pivoting assembly 43 includes a third rotating shaft 430 and a fourth pivoting piece 431. The third rotating shaft 430 is disposed on the supporting link 422 and indicates the third axial direction D3. The fourth pivoting piece 431 is configured to provide the third rotating shaft 430 to be disposed on the third rotating shaft 430. The fourth pivoting piece 431 is fixed to the screen 10 for rotation.

In detail, the first pivoting piece 411 is located in the side surface 33, the second pivoting piece 412 is located outside the side surface 33, and the two ends of the first rotating shaft 410 form a relatively wide flange. The first pivoting piece 411 and the second pivoting piece 412 can be sandwiched on the side surface 33 without falling off. The third pivoting piece 421 and the second pivoting piece 412 can be directly fixed. Furthermore, the design of the relevant structure is made to have a specific size, for example, the length of the first rotating shaft 410, the pivot hole of the side surface 33, and the piercing aperture of the three pivoting pieces 411, 412, and 421 for pivoting. In addition to being tightly clamped to the side surface 33, the first pivoting member 41 can also rotate the third pivoting piece 421 about the first rotating shaft 410.

On the other hand, the two second rotating shafts 420 can be further separated in production. The two first pivoting brackets 4210 and the two second pivoting brackets 4220 are respectively formed with corresponding through holes to provide the two second rotating shafts 420. Pivot through. The bottom of the support link 422 forms a flat plate 4221. The flat plate 4221 is formed with a corresponding through hole to provide the third rotating shaft 430 for pivoting. The third rotating shaft 430 can be directly fixed to the fourth pivoting piece 431 and can form a relatively wide flange at one end without falling off from the perforation of the flat plate 421. The fourth pivoting piece 431 can be directly welded to the back of the screen 10 or fixed by means of a screw bolt.

In general, the first pivoting component 41, the second pivoting component 42 and the third pivoting component 43 proposed by the present invention can be at 360 degrees, 180 degrees, and 360, respectively, on respective axial planes. Rotate within the range of degrees. However, since the screen 10 still has a certain length and width, in order to prevent the rotation of the screen 10 from colliding with the support base 30 or the placed table, each pivoting component depends on the position of the screen 10. It can only be rotated within a certain angle. In addition, the structure of each pivoting assembly is merely an example of the above figures, and the structure of each pivoting component can also be implemented in accordance with other concepts disclosed in the present disclosure.

Please refer to FIG. 4A and FIG. 4B simultaneously, wherein FIG. 4A is a schematic diagram of the second pivoting component 42 rotating 45 degrees relative to the electronic device 100 of FIG. 2A; FIG. 4B is another drawing according to FIG. 4A A schematic diagram at an angle. As shown in FIG. 4A and FIG. 4B , in this embodiment, the supporting rotating structure 40 is located at a corner of the side surface 33 that is in contact with the top surface 31 , so that the size of the screen 10 is considered, and the second The pivot assembly 42 is only used to rotate toward the front of the support base 30 (i.e., the front face 35).

When the supporting rotating structure 40 is in an original position (or in the stored state), the supporting rotating structure 40 is perpendicular to the side 33, and the screen 10 is parallel to the side 33. When the second pivoting assembly 42 is rotated by 45 degrees, the screen 10 forms an angle of 45 degrees with the side surface 33 and faces the oblique front of the supporting base 30.

Please refer to FIG. 5A and FIG. 5B simultaneously, wherein FIG. 5A is a schematic diagram of the second pivoting component 42 rotating 90 degrees relative to the electronic device 100 of FIG. 2A; FIG. 5B is another FIG. A schematic diagram at an angle. As shown in FIG. 5A and FIG. 5B, considering the size of the screen 10 and the position of the supporting rotating structure 40, it can be seen that the second pivoting assembly 42 of this embodiment can only be used for a maximum of about 90 degrees in practical applications. Turn. Therefore, when the second pivoting assembly 42 performs a relative rotation of 90 degrees, the screen 10 forms an angle of 90 degrees with the side surface 33, that is, perpendicular to the side surface 33.

Please refer to FIG. 6A and FIG. 6B at the same time, wherein FIG. 6A is a schematic diagram of the first pivoting component 41 rotating 45 degrees relative to the electronic device 100 of FIG. 5A; FIG. 6B is another drawing according to FIG. 6A A schematic diagram at an angle. As shown in FIGS. 6A and 6B, similarly, the first pivoting assembly 41 at this stage is only used to rotate above the support base 30 (ie, the top surface 31) in practical applications. . Therefore, the screen 10 can be tilted upward at the front surface 35. The first pivoting assembly 41 at this stage can only rotate at a maximum of about 90 degrees, that is, the screen 10 is positioned above the top surface 31 and parallel to the top surface 31 and perpendicular to the side surface 33.

In order to allow the screen 10 to be rotated at a maximum angle by the first pivoting assembly 41, in this embodiment, the portion of the supporting base 30 that is in contact with the top surface 31 It is in the form of a circular arc (see Fig. 2B, Fig. 3B, and Fig. 4B) so that it does not collide with the support base 30 when the screen 10 is rotated upward.

Please refer to FIG. 7A and FIG. 7B simultaneously, wherein FIG. 7A is a schematic diagram of the third pivoting component 43 rotating 90 degrees relative to the electronic device 100 of FIG. 6A; FIG. 7B is another FIG. A schematic diagram at an angle. As shown in Figures 7A and 7B, it can be seen that the third pivoting assembly 43 at this stage will be able to rotate 360 degrees in practical applications. In the 7A and 7B drawings, only the 90 degrees of the 6A and 6B are rotated, and the screen 10 can be changed from the horizontal arrangement to the straight arrangement, which will facilitate different images. The rendering of the content.

As shown in the above related drawings, in this embodiment, the screen 10 becomes an unfolded state after being rotated from the original position in the stored state. Therefore, under the operation of the three pivoting components, the screen 10 will be able to display or display a plurality of different angles, directions or positions in the space. With the counter application in the general supermarket or convenience store or the like in this embodiment, the screen 10 of the electronic device 100 can facilitate the consumer to check the checkout or work situation on the same time with the store clerk. In addition, the store clerk can also rotate the screen 10 to a suitable angle according to the needs of the working environment or the in-store furnishings. According to the rotation diagram in the above related drawings, it can be seen that the screen 10 forms an angle with the side surface 33 in the unfolded state, and the angle is greater than 0 degrees and less than or equal to 90 degrees.

In summary, the multi-directional rotating electronic device proposed by the present invention can achieve the function of appropriately setting the screen according to the operation requirement under the condition that the supporting rotating structure has three pivoting components, thereby being effective. Improve the clerk's working environment and storefront shopping space, so that consumers can get better service. Thus, the concept proposed by this creation is indeed more industrially applicable.

Therefore, this creation can effectively solve the related problems raised in the prior art, and can successfully achieve the main purpose of the development of the case.

Although the present invention has been disclosed above by way of example, it is not intended to limit the present invention. Those who have ordinary knowledge in the technical field of the present invention can make various changes and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application.

100‧‧‧Electronic devices

10‧‧‧ screen

30‧‧‧Support base

31‧‧‧ top surface

35‧‧‧ positive

40‧‧‧Support rotating structure

50‧‧‧Flat bottom plate

Claims (10)

A multi-directional rotating electronic device includes: a screen; a main body; a supporting base having an accommodating space, a side surface and an opening, the opening being connected to the accommodating space, the main body being The opening is assembled in the accommodating space; and a supporting rotating structure includes: a first pivoting component disposed on the side for providing rotation along a first axial direction; a second pivot a rotating assembly disposed on the first pivoting assembly for providing rotation along a second axial direction; and a third pivoting assembly disposed on the second pivoting assembly and coupled to the screen for A rotation is provided along a third axis. The multi-directional rotating electronic device of claim 1, wherein the first pivoting assembly comprises: a first pivoting piece disposed on a pivot hole of the side; a first rotating shaft And the second pivoting piece is disposed by the first rotating shaft, and is attached to the side corresponding to the first pivoting piece on. The multi-directional rotating electronic device of claim 2, wherein the second pivoting assembly comprises: a third pivoting piece fixed to the second pivoting piece and configured with the first rotating shaft The first pivoting shaft is pivoted to be pivoted, and a first pivoting bracket is formed at each end thereof; the two second rotating shafts are respectively disposed on the two first pivoting brackets and indicate the second Axial; a support link, the two ends of which are respectively formed with a second pivoting bracket, and the two second pivoting brackets are pivotally connected to the two first pivoting brackets and the two second rotating shafts respectively The two rotating shafts rotate for the axis. The multi-directional rotating electronic device of claim 3, wherein the third pivoting assembly comprises: a third rotating shaft disposed through the supporting link and indicating the third axial direction; The fourth pivoting piece is provided with the third rotating shaft as a setting and can be rotated by the third rotating shaft as an axis and fixed on the screen. The multi-directional rotating electronic device of claim 1, wherein the supporting base further has a top surface, and the supporting rotating structure is located at a corner of the side that is in contact with the top surface. The multi-directional rotating electronic device of claim 1, wherein the screen is parallel to the side when in a stowed state. The multi-directional rotating electronic device according to claim 1, wherein the screen forms an angle with the side surface in an unfolded state, and the angle is greater than 0 degrees and less than or equal to 90 degrees. The multi-directional rotating electronic device of claim 1, further comprising a planar bottom plate having a snap-in slot corresponding to a bottom surface of the support base The flat bottom plate is provided with the support base for assembly so that the bottom surface is engaged with the engaging slot, and the bottom floor area of the flat bottom plate is larger than the bottom surface area of the bottom surface. The multi-directional rotating electronic device according to claim 1, further comprising a transmission component, wherein the mainframe is exposed to the assembled opening and utilized The transmission assembly is electrically connected to the screen. The multi-directional rotary electronic device of claim 1, wherein the host system executes a software of an end point sales system (POS).