gas meter

Abstract

To provide a gas meter that allows only a terminal cover part to be removed without opening a shutoff button cover part when a contractor for installing the gas meter connects wires of another equipment to a terminal part, and allows the shutoff button cover part to be opened or closed by removing a shutoff button screw without opening the terminal cover part when a consumer operates the shutoff button part.SOLUTION: A control board 20 comprises a display part 21, a terminal part 22, and a shutoff button part 23. A front cover 30 has a front cover body 31, a terminal cover part 32, and a shutoff button cover part 33. The terminal cover part 32 can be attached to or detached from the front cover body 31 by attaching or detaching a terminal cover screw 51. The shutoff button cover part 33 can be opened or closed with respect to the front cover body 31 by removing a shutoff button screw 52 but cannot be opened or closed with respect to the front cover body 31 by fitting the shutoff button screw 52.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a gas meter having a gas flow rate measuring unit and a gas flow path shut-off mechanism inside.

Background Art

[0002] A large diaphragm type microcomputer gas meter installed and used in a factory or the like and having a shut-off valve for shutting off gas inside includes a controller case unit equipped with a control board for controlling safety functions and communicating with the outside, a main body that performs measurement by driving a diaphragm, and a display unit that displays pointer values with a mechanical counter (for example, Patent Document 1). A cover for housing a terminal wire for communicating with the outside is attached to the controller case unit. When installing the gas meter, since it is necessary to connect to other devices, a construction worker opens the cover and performs wiring work. A manual shut-off switch is provided in the controller case unit, and a switch cover for protecting the manual shut-off switch is attached. In an emergency or when the use of gas is stopped for a long time, a consumer can close the shut-off valve inside the gas meter by operating the manual shut-off switch, thereby preventing risks such as gas leakage. From the viewpoints of protecting the switch and preventing mischief, normally the switch cover is fixed with a screw and cannot be opened or closed. When operating, the screw is removed and the switch cover is opened to enable pressing the manual shut-off switch. In order to make such a large diaphragm type microcomputer gas meter lightweight and compact, when it is made ultrasonic, since the measurement principle becomes electronic, it is not desirable to use a mechanical counter. Therefore, a method is used in which a liquid crystal display unit is provided on the control board to display pointer values (for example, Patent Document 2). When a liquid crystal display is provided on the control board, in order to ensure visibility, it is required to arrange the control board on the front surface of the gas meter. Also, in order not to increase the component mounting surface of the control board, it is desirable to arrange the components mounted on the control board on the same surface as the liquid crystal display.

Prior Art Documents

[0003] [Patent Document 1] Design Registration No. 1088204 Gazette [Patent Document 2] Design Registration No. 1537126 Gazette [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] While control boards equipped with liquid crystal displays are widely used in household ultrasonic gas meters, they have never been put into practical use in commercial ultrasonic gas meters, and a single side of the control board has never been equipped with a liquid crystal display, terminals, and a manual shut-off switch. If the LCD display, terminals, and manual shut-off switch are mounted on one side of the control board, the electronic components will be concentrated on the limited mounting surface, resulting in an overcrowded state. In particular, the terminals and the manual cutoff switch must be mounted in close proximity, and both the terminals and the manual cutoff switch must be fitted with covers and secured with screws when not in operation. Furthermore, as mentioned above, since the operators of the terminals and manual cutoff switches are different, each cover must be able to be opened and closed independently.

[0005] Therefore, the present invention aims to provide a gas meter that allows a contractor installing the gas meter to remove only the terminal cover without opening the shut-off button cover when connecting wiring to another device at the terminal, and allows a consumer to open and close the shut-off button cover by removing the screw for the shut-off button without opening the terminal cover when operating the shut-off button. [Means for solving the problem]

[0006] The gas meter 1 of the present invention as described in claim 1 comprises a gas meter body 10 made of iron material and having a gas flow rate measuring unit and a gas flow path shutoff mechanism inside; a control board 20 connected by wiring to the gas flow rate measuring unit and the gas flow path shutoff mechanism; and a front cover 30 attached to the gas meter body 10 and covering the control board 20, wherein the control board 20 comprises a display unit 21, a terminal unit 22 connected to external wiring, and a shutoff button unit 23 for manually shutting off the gas flow path, and the front cover 30 covers the control board 20 except for the terminal unit 22 and the shutoff button unit 23. The device comprises a front cover body 31, a terminal cover portion 32 that covers the terminal portion 22 and is screwed to the front cover body 31, and a shut-off button cover portion 33 that covers the shut-off button portion 23 and is attached to the front cover body 31 in an openable and closable manner. The terminal cover portion 32 can be attached to and detached from the front cover body 31 by attaching and detaching terminal cover screws 51, the shut-off button cover portion 33 can be opened and closed from the front cover body 31 by removing shut-off button screws 52, and cannot be opened and closed from the front cover body 31 by attaching the shut-off button screws 52. The present invention as described in claim 2 is a gas meter 1 as described in claim 1, wherein the control board 20 has the terminal section 22 located below the display section 21, the terminal section 22 located on one side of the shut-off button section 23, the front cover body 31 has a first screw hole 41 for attaching the terminal cover screw 51 on one side of the terminal section 22, a second screw hole 42 for attaching the terminal cover screw 51 located on the other side of the terminal section 22, below the shut-off button section 23, and the shut-off button screw 52 is attached to the other side of the shut-off button section 23. A third screw hole 43 is provided, a shut-off button mounting base 36 is provided to the side of the third screw hole 43, the terminal cover portion 32 has a fourth screw hole 44 corresponding to the first screw hole 41 and a fifth screw hole 45 corresponding to the second screw hole 42, the shut-off button cover portion 33 has a sixth screw hole 46 corresponding to the third screw hole 43, a hinge portion 33b that rotates on a shaft portion 33a and a shut-off button mounting portion 33c to which the hinge portion 33b is attached, and the shut-off button mounting portion 33c is attached to the shut-off button mounting base 36. The present invention as described in claim 3 is characterized in that, in the gas meter 1 as described in claim 1, the shut-off button mounting base 36 has a seventh screw hole 47, the shut-off button mounting portion 33c has an eighth screw hole 48, and the shut-off button mounting portion 33c is attached to the shut-off button mounting base 36 by attaching fastening screws 53 to the seventh screw hole 47 and the eighth screw hole 48. The present invention as described in claim 4 is characterized in that, in the gas meter 1 described in claim 3, the shut-off button mounting base 36 has positioning holes 36a and 36b, and the projection formed on the shut-off button mounting portion 33c is fitted into the positioning holes 36a and 36b. The present invention as described in claim 5 is characterized in that, in the gas meter 1 described in claim 1, the front cover body 31 has ribs 37a and 37b erected above and to the side of the terminal portion 22, and a sponge packing 61 is provided on the back surface of the terminal cover portion 32 at a position that abuts against the ribs 37a and 37b. The present invention as described in claim 6 is characterized in that, in the gas meter 1 described in claim 5, grooves 38a and 38b are formed on the upper and outer surfaces of the ribs 37a and 37b, and a wiring opening 32a is formed on the lower surface of the terminal cover portion 32. The present invention as described in claim 7 is characterized in that, in the gas meter 1 described in claim 2, the shaft portion 33a is made of a metal material, and the front cover 30 other than the shaft portion 33a is made of a resin material. [Effects of the Invention]

[0007] According to the present invention, when a contractor opens the terminal cover to perform wiring, they will not accidentally operate the shut-off button and shut off the gas meter, and consumers will not be able to open the terminal cover by operating the shut-off button, thus ensuring the waterproofness of the terminal. [Brief explanation of the drawing]

[0008] [Figure 1] External perspective view of a gas meter according to one embodiment of the present invention [Figure 2] Front view of the gas meter with the front cover removed. [Figure 3] External perspective view showing the front cover of the gas meter according to this embodiment. [Figure 4] A perspective view of the main part showing the front cover of the gas meter according to this embodiment. [Figure 5] Diagram showing the terminal cover portion of the gas meter according to this embodiment. [Figure 6] This diagram shows the front cover with the terminal cover and the cutoff button cover attached and the cutoff button cover closed. [Figure 7] This diagram shows the front cover with the terminal cover and the cutoff button cover attached, and with the cutoff button cover in the open position. [Figure 8] This diagram shows the front cover with the terminal cover removed, the shut-off button cover attached, and the shut-off button cover in the open position. [Modes for carrying out the invention]

[0009] The gas meter according to the first embodiment of the present invention includes a control board comprising a display unit, a terminal unit connected to external wiring, and a shut-off button unit for manually shutting off the gas flow path. The front cover comprises a front cover body that covers the control board except for the terminal unit and the shut-off button unit, a terminal cover unit that covers the terminal unit and is screwed to the front cover body, and a shut-off button cover unit that covers the shut-off button unit and is attached to the front cover body in an openable and closable manner. The terminal cover unit can be attached to and detached from the front cover body by attaching and detaching terminal cover screws, and the shut-off button cover unit can be opened and closed from the front cover body by removing the shut-off button screws, and cannot be opened and closed from the front cover body by attaching the shut-off button screws. According to this embodiment, when a contractor installing a gas meter connects wiring for another device to the terminal, they can remove only the terminal cover without opening the shut-off button cover. When a consumer operates the shut-off button, they can open and close the shut-off button cover by removing the screw for the shut-off button without opening the terminal cover. Therefore, when a contractor opens the terminal cover to run wiring, they will not accidentally operate the shut-off button and shut off the gas meter. Furthermore, since consumers will not open the terminal cover by operating the shut-off button, the waterproofness of the terminal can be ensured.

[0010] In the second embodiment of the present invention, in the gas meter according to the first embodiment, on the control board, a terminal part is arranged below the display part, and a terminal part is arranged on one side of the shut-off button part. On the front cover main body, a first screw hole for attaching a screw for a terminal cover is arranged on one side of the terminal part, and a second screw hole for attaching a screw for a terminal cover is arranged on the other side of the terminal part and below the shut-off button part. On the other side of the shut-off button part, a third screw hole for attaching a screw for the shut-off button is arranged, and a mounting base for the shut-off button part is arranged on the side of the third screw hole. The terminal cover part has a fourth screw hole corresponding to the first screw hole and a fifth screw hole corresponding to the second screw hole. The shut-off button cover part has a sixth screw hole corresponding to the third screw hole, a hinge part that rotates by a shaft part, and a mounting part for the shut-off button part for attaching the hinge part. The mounting part for the shut-off button part is attached to the mounting base for the shut-off button part. According to this embodiment, in a state where the terminal part and the shut-off button part are arranged adjacent to each other in a limited space, the attachment and detachment of the terminal cover part and the opening and closing of the shut-off button cover part can be performed independently.

[0011] In the third embodiment of the present invention, in the gas meter according to the second embodiment, the mounting base for the shut-off button part has a seventh screw hole, and the mounting part for the shut-off button part has an eighth screw hole. The mounting part for the shut-off button part is attached to the mounting base for the shut-off button part by attaching a fastening screw to the seventh screw hole and the eighth screw hole. According to this embodiment, the shut-off button cover part can be securely attached to the front cover main body and can perform a stable opening and closing operation.

[0012] In the fourth embodiment of the present invention, in the gas meter according to the third embodiment, the mounting base for the shut-off button part has a positioning hole, and a protrusion formed on the mounting part for the shut-off button part is fitted into the positioning hole. According to this embodiment, in a limited space, the mounting part for the shut-off button part can be accurately and stably attached to the mounting base for the shut-off button part.

[0013] A fifth embodiment of the present invention is a gas meter according to the first embodiment, wherein the front cover body has ribs erected above and to the side of the terminal portion, and a sponge packing is provided on the back of the terminal cover portion at a position that contacts the ribs. According to this embodiment, waterproofing of the terminal portion can be ensured.

[0014] A sixth embodiment of the present invention is a gas meter according to the fifth embodiment, wherein grooves are formed on the upper and outer surfaces of the ribs, and a wiring opening is formed on the lower surface of the terminal cover. According to this embodiment, rainwater that has entered the back surface of the terminal cover can be allowed to fall along the groove and be discharged through the wiring opening.

[0015] A seventh embodiment of the present invention is a gas meter according to the second embodiment, wherein the shaft is made of metal and the front cover other than the shaft is made of resin. According to this embodiment, by using a metal material for the shaft portion, it is possible to ensure the strength of the opening and closing operation of the shut-off button cover portion operated by the consumer. [Examples]

[0016] A gas meter according to one embodiment of the present invention will be described below. Figure 1 is an external perspective view of the gas meter according to this embodiment, and Figure 2 is a front view of the same gas meter with the front cover removed. The gas meter 1 has a gas flow rate measuring unit and a gas flow path shut-off mechanism inside, and the gas meter body 10 has a gas inlet 2 and a gas outlet 3. A shut-off valve (not shown) is provided in the gas flow path (not shown) from the gas inlet 2 to the gas outlet 3. The shut-off valve shuts off the gas flow path formed inside the gas meter body 10. The gas meter 1 is equipped with a gas meter reset device 4 that returns the shut-off valve from a closed state to an open state. The gas meter body 10 is made of iron, and the front of the gas meter body 10 has an opening 11 for a reset button to which the gas meter reset device 4 is attached, and an opening 12 for a control board which is covered by the front cover 30. As shown in Figure 2, a control board 20 is positioned in the opening 12 for the control board, which is wired and connected to the gas flow rate measurement unit and the gas flow path shutoff mechanism. The control board 20 includes a display unit 21, a terminal unit 22 for connecting to external wiring, and a shut-off button unit 23 for manually shutting off the gas flow path. The control board 20 has a terminal section 22 located below the display section 21, and the terminal section 22 is located on one side of the shut-off button section 23. The front cover 30 shown in Figure 1 is attached to the gas meter body 10 and covers the control board 20.

[0017] Figure 3 is an external perspective view showing the front cover of the gas meter according to this embodiment. Figure 3(a) is an external perspective view of the front cover, and Figure 3(b) is an external perspective view of the front cover body with the terminal cover and shut-off button cover removed. Note that the control board is shown in Figure 3.

[0018] The front cover 30 includes a front cover body 31 that covers the control board 20 except for the terminal portion 22 and the shut-off button portion 23, a terminal cover portion 32 that covers the terminal portion 22 and is screwed to the front cover body 31, and a shut-off button cover portion 33 that covers the shut-off button portion 23 and is attached to the front cover body 31 so as to be openable and closable. Furthermore, the front cover body 31 is provided with a shut-off button cover 34 that covers the shut-off button portion 23. The shut-off button cover 34 prevents rainwater from entering the shut-off button portion 23. Furthermore, the front cover body 31 is provided with a visible section 35 that allows the display unit 21 to be seen.

[0019] As shown in Figure 3(b), the front cover body 31 has a first screw hole 41 for attaching a terminal cover screw 51 on one side of the terminal section 22, and a second screw hole 42 for attaching a terminal cover screw 51 on the other side of the terminal section 22, below the shut-off button section 23. The terminal section 22 is located on one side of the cutoff button section 23, and the other side of the cutoff button section 23 has a third screw hole 43 for attaching the cutoff button screw 52. The front cover body 31 has a mounting base 36 for the shut-off button located to the side of the third screw hole 43.

[0020] As shown in Figure 3(a), the terminal cover portion 32 has a fourth screw hole 44 corresponding to the first screw hole 41 and a fifth screw hole 45 corresponding to the second screw hole 42. The shut-off button cover portion 33 has a sixth screw hole 46 corresponding to the third screw hole 43, a hinge portion 33b that rotates on the shaft portion 33a, and a shut-off button portion mounting portion 33c to which the hinge portion 33b is attached. The cutoff button mounting portion 33c is attached to the cutoff button mounting base 36.

[0021] As shown in Figure 3(b), the mounting base 36 for the shut-off button has a seventh screw hole 47 and positioning holes 36a and 36b. The front cover body 31 has ribs 37a and 37b erected above and to the side of the terminal portion 22, and grooves 38a and 38b are formed on the upper and outer surfaces of the ribs 37a and 37b. Furthermore, it is preferable that the front cover 30 has a metal shaft portion 33a and a resin material for the parts other than the shaft portion 33a. By using a metal shaft portion 33a, it is possible to ensure strength against the opening and closing operation of the shut-off button cover portion 33 operated by the user.

[0022] Figure 4 is a perspective view of the main parts of the front cover of the gas meter according to this embodiment. Figure 4(a) is a perspective view of the main parts of the front cover with the terminal cover and shut-off button cover attached and the shut-off button cover closed. Figure 4(b) is a perspective view of the main parts of the front cover with the terminal cover removed and the shut-off button cover closed. Figure 4(c) is a perspective view of the main parts of the front cover with the terminal cover removed and the shut-off button cover open. The shut-off button mounting portion 33c has an eighth screw hole 48, and the shut-off button mounting portion 33c is attached to the shut-off button mounting base 36 by fastening screws 53 into the seventh screw hole 47 and the eighth screw hole 48 shown in Figure 3(b). Furthermore, a projection (not shown) is formed on the shut-off button mounting portion 33c, and by fitting the projection into the positioning holes 36a and 36b shown in Figure 3(b), the shut-off button mounting portion 33c can be accurately and stably attached to the shut-off button mounting base 36 within a limited space.

[0023] Figure 5 shows the terminal cover portion of the gas meter according to this embodiment. Figure 5(a) is a perspective view of the main part showing a cross-section of the terminal cover portion, Figure 5(b) is a perspective view of the main part of the terminal cover portion, Figure 5(c) is a perspective view of the main part of the terminal cover portion viewed from the back, and Figure 5(d) is a plan view showing the bottom surface of the terminal cover portion. A sponge packing 61 is provided on the back of the terminal cover portion 32 at a position that abuts against the ribs 37a and 37b erected above and to the side of the terminal portion 22. By bringing the sponge packing 61 into contact with the ribs 37a and 37b in this way, waterproofing of the terminal portion 22 can be ensured. A wiring opening 32a is formed on the lower surface of the terminal cover portion 32. By forming a wiring opening 32a on the lower surface of the terminal cover portion 32, rainwater that enters the back surface of the terminal cover portion 32 can be directed down along the grooves 38a, 38b formed on the upper and outer surfaces of the ribs 37a, 37b and discharged through the wiring opening 32a.

[0024] Figure 6 shows the front cover with the terminal cover and cutoff button cover attached and the cutoff button cover closed. Figure 6(a) is an external perspective view of the front cover, and Figure 6(b) is a front view of the front cover. The terminal cover portion 32 is attached to the front cover body 31 by terminal cover screws 51, and the cutoff button cover portion 33 is attached to the front cover body 31 by cutoff button screws 52. Thus, the terminal cover portion 32 is attached to the front cover body 31 by installing the terminal cover screws 51. In addition, the shut-off button cover portion 33 cannot be opened relative to the front cover body 31 by installing the shut-off button screws 52.

[0025] Figure 7 shows the front cover with the terminal cover and cutoff button cover attached and the cutoff button cover open. Figure 7(a) is an external perspective view of the front cover, and Figure 7(b) is a front view of the front cover. The terminal cover section 32 is attached to the front cover body 31 by terminal cover screws 51, but the shut-off button screws 52 have been removed. In this way, by removing the screw 52 for the shut-off button, the shut-off button cover 33 can be opened relative to the front cover body 31.

[0026] Figure 8 shows the front cover with the terminal cover removed and the shut-off button cover attached, with the shut-off button cover in the open position. Figure 8(a) is an external perspective view of the front cover, and Figure 8(b) is a front view of the front cover. The terminal cover portion 32 can be removed from the front cover body 31 by removing the terminal cover screws 51. Also, the shut-off button cover portion 33 can be opened relative to the front cover body 31 by removing the shut-off button screws 52.

[0027] Thus, the terminal cover portion 32 can be attached to and detached from the front cover body 31 by attaching and detaching the terminal cover screws 51, and the cutoff button cover portion 33 can be opened and closed from the front cover body 31 by removing the cutoff button screws 52. Furthermore, it is preferable that the shut-off button cover portion 33 is normally closed using a spring material, and that it always remains closed when the shut-off button screw 52 is removed.

[0028] As described above, according to this embodiment, when a contractor installing the gas meter 1 connects wiring for another device to the terminal section 22, they can remove only the terminal cover section 32 without opening the shut-off button cover section 33. When a consumer operates the shut-off button section 23, they can open and close the shut-off button cover section 33 by removing the shut-off button screw 52 without opening the terminal cover section 32. Therefore, when a contractor opens the terminal cover section 32 for wiring, they will not accidentally operate the shut-off button section 23 and shut off the gas meter 1. Furthermore, consumers will not open the terminal cover section 32 by operating the shut-off button section 23, thus ensuring the waterproofness of the terminal section 22. Furthermore, according to this embodiment, even with the terminal section 22 and the cutoff button section 23 arranged adjacent to each other in a limited space, the attachment and detachment of the terminal cover section 32 and the opening and closing of the cutoff button cover section 33 can be performed independently. Furthermore, according to this embodiment, the shut-off button cover portion 33 can be securely attached to the front cover body 31, and stable opening and closing operations can be performed. [Industrial applicability]

[0029] This invention is particularly suitable for commercial ultrasonic gas meters. [Explanation of Symbols]

[0030] 1. Gas meter 2 Gas inlet 3. Gas outlet 4. Gas meter reset device 10. Gas meter unit 11. Opening for the reset button 12. Aperture for control board 20 Control board 21 Display section 22 Terminal section 23. Shut-off button section 30 Front cover 31 Front cover body 32 Terminal cover section 32a Wiring opening 33. Shut-off button cover section 33a Shaft 33b Hinge section 33c Shut-off button mounting section 34. Cover for the shut-off button. 35 Visible part 36 Mounting base for the shut-off button 36a, 36b Positioning holes 37a, 37b Ribs 38a, 38b groove 41 First screw hole 42 Second screw hole 43 Third screw hole 44 Fourth screw hole 45 Fifth threaded hole 46. ​​6th threaded hole 47. 7th screw hole 48 8th screw hole 51 Screws for terminal covers 52 Screws for the shut-off button 53 Fastening screws 61 Sponge gasket

Claims

1. A gas meter body made of iron material, having a gas flow measurement unit and a gas flow path shutoff mechanism inside, A control board that is wired and connected to the gas flow measurement unit and the gas flow path shutoff mechanism, A front cover attached to the gas meter body and covering the control board A gas meter having, The control board includes a display unit, a terminal unit connected to external wiring, and a shut-off button unit for manually shutting off the gas flow path. The aforementioned front cover is A front cover body that covers the control board except for the terminal portion and the shut-off button portion, A terminal cover portion that covers the terminal portion and is screwed to the front cover body, A shut-off button cover portion that covers the shut-off button portion and is attached to the front cover body so as to be openable and closable, and It has, The terminal cover portion can be attached to and detached from the front cover body by attaching and detaching the terminal cover screws. The shut-off button cover can be opened and closed relative to the front cover body by removing the screw for the shut-off button, and cannot be opened and closed relative to the front cover body by installing the screw for the shut-off button. A gas meter characterized by the following features.

2. The control board includes: The terminal section is located below the display section. The terminal portion is located on one of the aforementioned shut-off button portions. The front cover body includes: A first screw hole for attaching the terminal cover screw is provided on one of the terminal portions. A second screw hole for attaching the terminal cover screw is provided on the other side of the terminal portion, below the cutoff button portion. A third screw hole for attaching the screw for the shut-off button is provided on the other side of the shut-off button portion. A mounting base for the shut-off button is positioned to the side of the third screw hole. The terminal cover portion includes: It has a fourth screw hole corresponding to the first screw hole and a fifth screw hole corresponding to the second screw hole, The aforementioned shut-off button cover portion includes: A sixth screw hole corresponding to the third screw hole, A hinge part that rotates on the shaft, The mounting portion for the shut-off button to which the hinge portion is attached and It has, The mounting base for the shut-off button is attached to the aforementioned shut-off button mounting base. The gas meter according to feature 1.

3. The mounting base for the shut-off button has a seventh screw hole. The aforementioned cut-off button mounting portion has an eighth screw hole, The shut-off button mounting part is attached to the shut-off button mounting base by fastening screws into the seventh screw hole and the eighth screw hole. The gas meter according to feature 2.

4. The mounting base for the shut-off button has a positioning hole, The projection formed on the mounting portion of the shut-off button is fitted into the positioning hole. The gas meter according to feature 3.

5. The front cover body includes: Ribs are formed to stand above and to the side of the terminal portion. On the back of the terminal cover portion, A sponge packing is provided at a position that contacts the aforementioned rib. The gas meter according to feature 1.

6. Grooves are formed on the upper and outer surfaces of the ribs. An opening for wiring is formed on the lower surface of the terminal cover portion. The gas meter according to feature 5.

7. The shaft portion is made of metal, and the front cover other than the shaft portion is made of resin. The gas meter according to feature 2.

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