JP2017173406A - Digital signage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital signage that can reduce likelihood of occurrence of failures even if it is rainy.SOLUTION: A digital signage comprises: first/second display devices; a first housing 2 that houses the first/second display devices and includes a display window; first/second partition plates 11, 12 that extend in a vertical direction so as to partition a space within the first housing 2 between the first/second display devices; and first and second fans that ventilate air within an intermediate area A3 between a display screen and the display widow. A first suction port 211 and first discharge port 212 are disposed on a rear surface side of a first area A1, and the first suction port 211 is arranged on a side near to the first partition plate 11 further than the first discharge port 212. A second suction port 221 and second discharge port 222 are disposed on a rear surface side of a second area A2, and the second discharge port 222 is arranged on a side near to the second partition plate 12 further than the second suction port 221. A ventilation hole 14 is formed only in the first partition plate 11.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a so-called digital signage in which a display device is accommodated in a housing and can be installed outdoors or in public spaces.

  In recent years, so-called digital signage that transmits information using electronic display devices such as a display device connected to a network is used in various places such as outdoors, storefronts, public spaces, and transportation facilities. Such digital signage may cause heat generated in the display device to be trapped in the housing and exceed the operating temperature of the display device.

  Therefore, a guide display panel is known in which the display device is air-cooled by sucking outside air from below the casing and exhausting it from the top of the casing (see, for example, Patent Document 1).

Japanese Utility Model Publication 4-13982

  However, according to the above-described guidance display panel, raindrops may be sucked from the lower part of the casing on a rainy day and the entire interior of the casing may be wetted. Therefore, there is a possibility that the display device or the electric circuit housed in the casing may get wet and cause troubles such as failure or malfunction.

  An object of the present invention is to provide a digital signage that can reduce the risk of causing damage even in rainy weather.

  A digital signage according to the present invention is a digital signage having a first direction that is scheduled to be horizontal and a second direction that is scheduled to be vertical, and displays an image. The display screen is provided with a display inlet for intake on the back of one end in the first direction of the display screen, and the exhaust on the back of the other end of the display screen in the first direction. A first and a second display device that are spaced apart from each other along the first direction; and the first and second display devices are accommodated in the first and second display devices. A first housing having a display window that allows a display screen of the display device to be visually recognized from outside, and a space in the first housing between the first display device and the second display device A first and second partition plate extending in the second direction and extending in parallel to each other so as to partition, and an intermediate portion partitioned by the first partition plate and the second partition plate in the first housing A first fan that blows air in a region between the display screen of the first display device and the display window; and air in the intermediate region between the display screen of the second display device and the display window. And the first display device is a region partitioned by the first partition plate in the first housing, and is a first region opposite to the second partition plate The display air inlet of the first display device is disposed closer to the first partition plate than the display exhaust port of the first display device, and the second display device The second partition plate in one housing It is a partitioned region and is disposed in a second region opposite to the first partition plate, and the display exhaust port of the second display device is more than the display intake port of the second display device. A first intake port that is disposed on the side close to the second partition plate and is on the back side of the first region in the first housing for sucking air into the first region from the outside of the first housing And a first exhaust port for exhausting air in the first region, the first intake port being disposed closer to the first partition plate than the first exhaust port, On the back side of the second region in one housing, there are a second air inlet for sucking air into the second region from the outside of the second housing and a second air port for exhausting air in the second region. Two exhaust ports are provided, and the second exhaust port is more than the second intake port than the second intake port. It is arrange | positioned at the side close | similar to a cut plate, and the vent hole is formed only in said 1st partition plate among said 1st and 2nd partition plates.

  According to this configuration, the space in the first housing that accommodates the first and second display devices is the first region in which the first display device is disposed by the first and second partition plates, and the second display device. Is divided into a second region in which is disposed, and an intermediate region between the first display device and the second display device. A first intake port and a first exhaust port are provided in the first region, and a second intake port and a second exhaust port are provided in the second region. According to this, even if rainwater or the like is blown into the first area from the first intake port or the first exhaust port, the rainwater or the like enters the second area by the first and second partition plates. Even when rainwater or the like is blown into the second area from the second air inlet or the second air outlet, the first and second partition plates may cause the rainwater or the like to enter the first area. Since it is hindered, it is possible to reduce the possibility of causing trouble even in rainy weather. In addition, a vent is formed in the first partition plate near the first intake port side that sucks in outside air, and the second partition plate near the second exhaust port side that exhausts air whose temperature has risen by cooling the equipment No vent is formed. As a result, when the first and second fans blow the air in the intermediate region to the display screens of the first and second display devices, the outside air sucked by the first intake port is displayed on the display screens of the first and second display devices. Since the air on the second partition plate side that has been blown and cooled and the temperature has risen is not blown, the cooling efficiency of the first and second display devices can be improved.

  The first casing further includes a second casing attached adjacent to the second direction side of the first casing, and an exhaust fan that exhausts air in the second casing to the outside. It is preferable that a communication hole for communicating the intermediate region and the space in the second housing is formed between the first housing and the second housing.

  According to this configuration, when the air in the second housing is discharged to the outside by the exhaust fan, the air in the middle region, that is, the air is sucked in from the outside by the first air inlet, and is introduced into the middle region from the vent of the first partition plate. The air thus introduced is introduced into the second housing through the communication hole. Therefore, the inside of the second housing can be effectively air-cooled.

  The second casing may be attached adjacent to a side that is scheduled to be below the first casing.

  According to this configuration, since the second casing is disposed below the first casing, the communication hole is provided at the bottom of the first casing. Therefore, if the communication hole is provided in the first region or the second region, rainwater that has entered from the first intake port, the first exhaust port, the second intake port, and the second exhaust port is prevented from flowing into the first housing. There is a risk of flowing into the second housing from the communication hole in the bottom of the body. On the other hand, according to this configuration, since the communication hole communicates the intermediate region sandwiched between the first partition plate and the second partition plate with the second housing, the first intake port, the first exhaust port, the second intake port Rainwater that has entered through the opening and the second exhaust port and accumulated at the bottom of the first casing is prevented from flowing into the communication hole and entering the second casing by the first and second partition plates. As a result, it is possible to reduce the possibility of causing trouble even in rainy weather.

  The digital signage having such a configuration can reduce the possibility of causing a failure even in rainy weather.

It is a perspective view which shows an example of the external appearance which looked at the digital signage which concerns on one Embodiment of this invention from the front side. It is a perspective view which shows an example of the external appearance which looked at the digital signage shown in FIG. 1 from the back side. It is a perspective view which shows an example of the external appearance which looked at the display apparatus shown in FIG. 1 from the back side. It is a perspective view which shows an example of an internal structure of the digital signage shown in FIG. It is explanatory drawing which shows the state which attached the display apparatus and the 1st and 2nd fan to the digital signage shown in FIG.

  Embodiments according to the present invention will be described below with reference to the drawings. In addition, the structure which attached | subjected the same code | symbol in each figure shows that it is the same structure, The description is abbreviate | omitted. FIG. 1 is a perspective view showing an example of an appearance of a digital signage according to an embodiment of the present invention viewed from the front side. A digital signage 1 shown in FIG. 1 includes a substantially box-shaped first housing 2 and a substantially box-shaped second housing 3. The first housing 2 is attached to the upper part of the second housing 3.

  A transparent first display window 4 and a second display window 5 having a substantially rectangular shape are attached to the front wall of the first housing 2. The first display window 4 and the second display window 5 are made of, for example, glass or transparent resin. The first display window 4 and the second display window 5 are arranged side by side in the horizontal direction. The front wall of the first housing 2 may be openable and closable.

  Hereinafter, when the digital signage 1 is installed to be used, the horizontal direction of the digital signage 1 is the left-right direction (first direction), and the vertical direction of the digital signage 1 is the vertical direction (first direction). 2 directions), the depth direction of the digital signage 1 is referred to as the front-rear direction.

  In the first housing 2, display devices 6 and 7 are accommodated side by side in the left-right direction. The display devices 6 and 7 are spaced apart from each other in the left-right direction. The display devices 6 and 7 include substantially box-shaped display housings 62 and 72, a display screen 61 is attached to the front surface of the display housing 62, and a display screen 71 is attached to the front surface of the display housing 72. Then, the display screen 61 of the display device 6 (first display device) is made visible through the first display window 4, and the display screen 71 of the display device 7 (second display device) is made visible through the second display window 5. Has been.

  Third exhaust ports 31 and 32 are provided on the left and right side walls of the second housing 3. A louver for preventing rain is attached to the third exhaust ports 31 and 32. Exhaust fans 311 and 321 (see FIG. 4) for forcibly exhausting the air in the second housing 3 are attached to the third exhaust ports 31 and 32. The second housing 3 can accommodate various devices, circuits, and the like such as unillustrated uninterruptible power supply devices, communication circuits, and control devices. Note that a forced cooling device for forced cooling, a so-called cooler, may be accommodated in the second housing 3, and only one of the third exhaust ports 31 and 32 may be provided. .

  FIG. 2 is a perspective view showing an example of an appearance of the digital signage 1 shown in FIG. 1 as viewed from the back side. On the back surface of the first housing 2, three first intake ports 211, 211, 211, two first exhaust ports 212, 212, three second intake ports 221, 221, 221, Two exhaust ports 222 and 222 are attached. A louver for preventing rain is attached to the first air inlet 211, the first air outlet 212, the second air inlet 221 and the second air outlet 222.

  FIG. 3 is a perspective view showing an example of an appearance of the display device 6 shown in FIG. 1 as viewed from the back side. Three display air inlets 8, 8, 8 are formed in the vicinity of the left rear end of the display device 6 in the vertical direction, and three display exhaust ports 9, 8 are formed near the right rear end of the display device 6. 9, 9 are formed side by side in the vertical direction. For example, a filter for preventing dust from entering the display housing 62 is attached to the display intake ports 8, 8, 8 and the display exhaust ports 9, 9, 9. Since the display device 7 is configured in the same manner as the display device 6, the description thereof is omitted.

  FIG. 4 is a perspective view showing an example of the internal configuration of the digital signage 1 shown in FIG. FIG. 4 shows the digital signage 1 shown in FIG. 1 from the front wall of the first housing 2, the front wall of the second housing 3, the display devices 6 and 7, and first and second fans F1, which will be described later. It is the figure which removed F2 and looked at the inside of the 1st housing | casing 2 and the 2nd housing | casing 3 from the front. In the following figures, the air flow is indicated by arrows.

  The space in the first housing 2 is divided into a first region A1, a second region A2, and a second partition plate 12 extending in the vertical direction and spaced apart from each other in parallel. It is divided into three areas, the intermediate area A3. In the example of FIG. 4, the first partition plate 11 is disposed on the right side, and the second partition plate 12 is disposed on the left side. The first region A1 is a region sandwiched between the right side wall of the first housing 2 and the first partition plate 11, and the second region A2 is the left side wall of the first housing 2 and the second partition plate 12. The intermediate area A <b> 3 is an area sandwiched between the first partition plate 11 and the second partition plate 12. The first area A1 is an area where the display device 6 is disposed, and the second area A2 is an area where the display device 7 is disposed.

  The front end of the first partition plate 11 is cut away from the lower end of the lowermost vent 14 described later. Thereby, the air in the intermediate area A3 can be blown from the cutout portion of the first partition plate 11 toward the display screen 61 of the display device 6 by the first fan F1 described later. Further, the front end of the first partition plate 11 reaches the front wall of the first housing 2 from the lower end of the lowermost vent 14 to the bottom of the first housing 2. This prevents water from flowing from the first region A1 into the intermediate region A3 even when rainwater accumulates at the bottom of the first region A1.

  Similarly, the front end of the second partition plate 12 is cut away from the same height as the first partition plate 11. Thus, air in the intermediate area A3 can be blown from the cutout portion of the second partition plate 12 toward the display screen 71 of the display device 7 by a second fan F2 described later. The front end of the second partition plate 12 reaches the front wall of the first housing 2 from the bottom of the first housing 2 to the cutout portion. This prevents water from flowing from the second region A2 into the intermediate region A3 even when rainwater accumulates at the bottom of the second region A2.

  On the back surface of the first area A1 in the first housing 2, there are first intake ports 211, 211, 211 for taking air into the first area A1 from the outside of the first area A1, and air in the first area A1. First exhaust ports 212, 212 are provided for exhausting the air. The first air inlets 211, 211, 211 are arranged in the vertical direction in the vicinity of the left end of the first region A1. The first exhaust ports 212 and 212 are arranged side by side in the vertical direction near the right end of the first region A1. That is, the first air inlets 211, 211, 211 are disposed closer to the first partition plate 11 than the first exhaust ports 212, 212.

  On the back surface of the second area A2 in the first housing 2, there are second intake ports 221, 221, 221 for taking air into the second area A2 from the outside of the second area A2, and air in the second area A2. The second exhaust ports 222 and 222 are provided for exhausting the air. The second air inlets 221, 221, and 221 are arranged in the vertical direction near the left end of the second area A2. The second exhaust ports 222 and 222 are arranged in the vertical direction in the vicinity of the right end of the second region A2. That is, the second exhaust ports 222 and 222 are disposed closer to the second partition plate 12 than the second intake ports 221, 221, and 221.

  The first intake ports 211, 211, 211, the first exhaust ports 212, 212, the second intake ports 221, 221, 221, and the second exhaust ports 222, 222 have openings that open inward and upward. A cover 22 with 21 is attached. The cover 22 prevents raindrops from entering the first housing 2 from the outside. Intake or exhaust by the first intake ports 211, 211, 211, the first exhaust ports 212, 212, the second intake ports 221, 221, 221, and the second exhaust ports 222, 222 is performed through the opening 21 of the cover 22. Done through.

  An exhaust fan 23 is attached to the openings 21 of the first exhaust ports 212 and 212 and the second exhaust ports 222 and 222. Thereby, the air in 1st area | region A1 is forcedly exhausted from 1st exhaust port 212,212, and the air in 2nd area | region A2 is forcedly exhausted from 2nd exhaust port 222,222. As the exhaust fan 23, for example, a cross flow fan can be suitably used.

  When the air in the first region A1 is forcibly exhausted from the first exhaust ports 212, 212, the atmospheric pressure in the first region A1 decreases, and the outside air enters the first region A1 from the first intake ports 211, 211, 211. Is inhaled. On the other hand, when the air in the second region A2 is forcibly exhausted from the second exhaust ports 222, 222, the atmospheric pressure in the second region A2 decreases, and the second intake ports 221, 221, 221 pass through the second region A2. Outside air is inhaled.

  Here, as shown in FIG. 3, display air inlets 8, 8, 8 are arranged in the vicinity of the left rear end portion of the display device 6, and display exhaust ports 9, 9, 9 are arranged in the vicinity of the right rear surface end portion of the display device 6. Therefore, when the display device 6 is attached to the first area A1, the first air inlets 211, 211, 211 and the display air inlets 8, 8, 8 are located on the left side in the first area A1. Arranged to correspond. Accordingly, the low-temperature outside air sucked by the first air inlets 211, 211, 211 is smoothly sucked into the display housing 62 from the display air inlets 8, 8, 8, so that the inside of the display device 6 is efficiently air-cooled. It becomes possible to do.

  Further, since the display exhaust ports 9, 9, 9 are arranged in the vicinity of the right rear end of the display device 6, when the display device 6 is attached to the first region A1, the display exhaust ports 9, 9 of the display device 6 are installed. , 9 and the first exhaust ports 212, 212 are arranged on the right side in the first region A1 so as to correspond to each other. Therefore, the air exhausted from the display exhaust ports 9, 9, 9, that is, the air that has cooled the interior of the display device 6 and has reached a high temperature is smoothly exhausted to the outside of the first housing 2, so that the first housing can be efficiently performed. It becomes possible to exhaust the heat in the body 2 to the outside.

  Similarly, in the second region A2, the second intake ports 221, 221, 221 and the display intake ports 8, 8, 8 of the display device 7 are both arranged on the left side in the second region A2 and correspond to each other. The display exhaust ports 9, 9, 9 of the device 7 correspond to the second exhaust ports 222, 222. As a result, as in the case of the first region A1, the display device 7 can be efficiently cooled, and the heat in the second housing 3 can be efficiently exhausted to the outside.

  Here, since the first intake ports 211, 211, and 211 are arranged in the vicinity of the first partition plate 11, low-temperature outside air is brought close to the first partition plate 11 by the first intake ports 211, 211, and 211. Inhaled. On the other hand, since the second exhaust ports 222 and 222 and the display exhaust ports 9, 9, 9 are arranged in the vicinity of the second partition plate 12, they are discharged from the display exhaust ports 9, 9, 9 or the second area. Air that has circulated through A2 and has a temperature higher than the outside air gathers in the vicinity of the second partition plate 12.

  Therefore, in order to draw low-temperature air having a high cooling effect into the intermediate region A3, the vent holes 14 are formed in the first partition plate 11 in the vicinity of the low-temperature air. In the example shown in FIG. 4, a plurality of long hole-shaped vent holes 14 that are long in the front-rear direction are formed side by side in the vertical direction. The lowermost vent 14 is formed at a position spaced from the lower end of the first partition plate 11 (the bottom plate of the first housing 2). This prevents rainwater or the like accumulated in the lower portion of the first housing 2 from entering the intermediate region A3 from the vent hole 14.

  On the other hand, in order not to draw high-temperature air having a low cooling effect into the intermediate region A3, the second partition plate 12 in the vicinity of the high-temperature air has no vent hole.

  A communication hole 15 is formed at the bottom of the intermediate region A3 to communicate the intermediate region A3 with the space in the second housing 3. When the air in the second housing 3 is exhausted to the outside by the exhaust fans 311 and 321, the atmospheric pressure in the second housing 3 is lowered, and the low-temperature outside air sucked from the first air inlets 211, 211, and 211 is discharged. The second casing 3 is drawn through the vent hole 14, the intermediate area A 3, and the communication hole 15.

  The air drawn into the second housing 3 cools the devices, circuits, and the like disposed in the second housing 3 and is forcedly exhausted from the third exhaust ports 31 and 32 by the exhaust fans 311 and 321.

  FIG. 5 is an explanatory diagram showing a state in which the display devices 6 and 7 and the first and second fans F1 and F2 are attached to the digital signage 1 shown in FIG. The display device 6 is attached to the first region A1, the display device 7 is attached to the second region A2, and the first and second fans F1 and F2 are attached to the front of the intermediate region A3. The first and second fans F1, F2 are cross flow fans, for example, and are arranged so as to be long in the vertical direction. The first and second fans F1 and F2 are arranged in parallel to each other in the left-right direction, with the first fan F1 on the right side (first area A1 side) and the second fan F2 on the left side (second area A2 side). Has been.

  The first fan F1 draws the air in the intermediate area A3, that is, the low-temperature outside air that is sucked from the first intake ports 211, 211, and 211 and flows into the intermediate area A3 through the vent holes 14 into the display screen of the display device 6. Air is blown between 61 and the first display window 4. The second fan F2 draws the air in the intermediate area A3, that is, the low-temperature outside air that is sucked from the first intake ports 211, 211, and 211 and flows into the intermediate area A3 through the vent holes 14 into the display screen of the display device 7. Air is blown between 71 and the second display window 5. Thereby, the display screens 61 and 71 of the display devices 6 and 7 can be cooled.

  Further, when rainwater enters the first area A1 or the second area A2, the humidity of the area where the rainwater has entered increases, and condensation occurs on the inner surface of the first display window 4 or the second display window 5 on the front surface of the first housing 2. May occur and the first display window 4 or the second display window 5 may become cloudy. However, according to the digital signage 1, the first fan F1 and the second fan F2 allow the outside air sucked from the first intake ports 211, 211, 211 to the inner surfaces of the first display window 4 and the second display window 5. Since the wind mainly containing is blown, the cloudiness by the dew condensation produced on the inner surfaces of the first display window 4 and the second display window 5 can be eliminated by blowing air.

  Moreover, the dust adhering to the inner surface of the 1st display window 4 and the 2nd display window 5 can be blown off with the wind sent from the 1st fan F1 and the 2nd fan F2. Thereby, it becomes easy to keep the first display window 4 and the second display window 5 clean.

  In the intermediate region A3, warm air rises due to natural convection and low-temperature air falls. As a result, for some of the vents 14 provided above the first partition plate 11 among the plurality of vents 14, the air that has risen in the intermediate region A3 passes through the vents 14 and passes through the first region A1. May flow to.

  In the digital signage 1 configured as described above, the first region A1 in which the display device 6 is accommodated and the second region A2 in which the display device 7 is accommodated are the first partition plate 11 and the second partition plate 12. Since it is partitioned, even if rainwater or the like enters the first area A1 from the first air inlets 211, 211, 211, water does not enter the second area A2, and the second air inlets 221, 221, Even if rainwater or the like enters the second area A2 from 221, water does not enter the first area A1, so that it is possible to reduce the possibility of causing a failure even in rainy weather.

  Moreover, since the communication hole 15 which connects the 1st housing | casing 2 and the 2nd housing | casing 3 is provided in the bottom part of intermediate | middle area | region A3 pinched | interposed by the 1st partition plate 11 and the 2nd partition plate 12, Even when water accumulates at the bottom of the first region A1 or the second region A2, the risk of the water entering the second housing 3 from the communication hole 15 can be reduced.

  In addition, a vent 14 is formed in the first partition plate 11 in the vicinity of the first intake ports 211, 211, and 211 through which low-temperature outside air is taken in, and the high temperature that takes heat from the devices and circuits in the first housing 2 is formed. Since the second partition plate 12 in the vicinity of the second exhaust ports 222 and 222 where air collects is not formed with a vent hole, relatively low temperature air can be introduced into the intermediate region A3. The air introduced into the intermediate area A3 is used for cooling the display screens 61 and 71 and the devices in the second housing 3 by the first and second fans F1 and F2 and the exhaust fans 311 and 321. By introducing relatively low temperature air into A3, the cooling efficiency of the display screens 61 and 71 and the devices in the second housing 3 can be improved.

  The digital signage 1 does not necessarily have to include the second housing 3. 1 to 5 are only examples, and the direction of the digital signage 1 may be different from this example.

DESCRIPTION OF SYMBOLS 1 Digital signage 2 1st housing | casing 3 2nd housing | casing 4 1st display window 5 2nd display window 6 Display apparatus (1st display apparatus)
7 Display device (second display device)
8 Display intake port 9 Display exhaust port 11 First partition plate 12 Second partition plate 14 Ventilation port 15 Communication hole 21 Opening portion 22 Cover 23 Exhaust fan 31, 32 Third exhaust port 61, 71 Display screen 62, 72 Display housing 211 First intake port 212 First exhaust port 221 Second intake port 222 Second exhaust port 311, 321 Exhaust fan A1 First region A2 Second region A3 Intermediate region F1 First fan F2 Second fan

Claims (3)

A digital signage having a first direction that is scheduled to be horizontal and a second direction that is scheduled to be vertical;
A display screen for displaying an image, the display screen including a display inlet for suction on a back surface on one end side in the first direction of the display screen, and a back surface on the other end side in the first direction of the display screen A first and second display devices provided with a display exhaust port for exhausting and spaced apart from each other along the first direction;
A first housing having a display window for accommodating the first and second display devices and making the display screens of the first and second display devices visible from the outside;
First and second partition plates extending in the second direction and extending parallel to each other so as to partition the space in the first housing between the first display device and the second display device;
A first fan for blowing air in an intermediate region partitioned by the first partition plate and the second partition plate in the first housing between the display screen of the first display device and the display window; ,
A second fan that blows air in the intermediate region between the display screen of the second display device and the display window;
The first display device is a region partitioned by the first partition plate in the first housing, and is disposed in a first region opposite to the second partition plate,
The display inlet of the first display device is disposed closer to the first partition plate than the display exhaust of the first display device,
The second display device is a region partitioned by the second partition plate in the first housing, and is disposed in a second region opposite to the first partition plate,
The display exhaust port of the second display device is disposed closer to the second partition plate than the display air intake port of the second display device,
On the back side of the first region in the first housing is for exhausting air in the first region and a first air inlet for sucking into the first region from the outside of the first housing. The first exhaust port is disposed, and the first intake port is disposed closer to the first partition plate than the first exhaust port,
On the back side of the second region of the first housing, a second intake port for sucking air into the second region from the outside of the second housing and air in the second region are exhausted. The second exhaust port is disposed, and the second exhaust port is disposed closer to the second partition plate than the second intake port,
Digital signage in which a vent is formed only in the first partition plate of the first and second partition plates. A second housing attached adjacent to the second direction side of the first housing;
An exhaust fan for exhausting the air in the second housing to the outside,
2. The digital signage according to claim 1, wherein a communication hole is formed between the first housing and the second housing to communicate the intermediate region with a space in the second housing.   The digital signage according to claim 2, wherein the second casing is attached adjacent to a side that is scheduled to be below the first casing.

Images