Antenna case

Abstract

To provide an antenna case which can be easily equipped to an apparatus case for storing an apparatus which deals with a reception signal.SOLUTION: An antenna case 1 can store a flat antenna, and has an attachment nail and a second drop prevention rib 114a in the back surface. When the attachment nail is inserted into a through-hole formed in the back surface of a second apparatus case 16, the second apparatus case 16 is provisionally fixed and a leg part 233a of the second apparatus case 16 goes over the second drop prevention rib 114a and the attachment nail becomes in contact with the side edge of the leg part 233a so that the second apparatus case 16 is fixed.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a thin rectangular parallelepiped antenna case, and more particularly to an antenna case that houses a planar antenna capable of receiving terrestrial digital television broadcasts. [Background technology]

[0002] Known antenna devices, such as Yagi antennas and planar antennas, are conventional antennas for receiving terrestrial digital television broadcasts. In this case, the planar antenna has a planar antenna element, and is housed and attached in a thin rectangular parallelepiped antenna case. An amplifier may be provided to amplify television signals received by the antenna device and supply them to a television receiver. In this case, the amplifier is generally attached near the outdoor antenna device, but a conventional antenna device in which an amplifier is provided in an antenna case that houses a planar antenna is disclosed in Patent Document 1.

[0003] The configuration of antenna device 1100 disclosed in Patent Document 1 is shown in Fig. 26 and Fig. 27. Fig. 26 is a perspective view of the rear side of conventional antenna device 1100 provided with a booster device, and Fig. 27 is a perspective view of the rear side of conventional antenna device 1100, showing antenna device 1100 and booster device 1010 separated from each other. Conventional antenna device 1100 shown in these figures includes an antenna body (not shown) and a housing 1120. Housing 1120 houses the antenna body, and has an outer peripheral surface 1121 and a back surface 1122 surrounded by outer peripheral surface 1121. The antenna body is disposed in the center inside housing 1120.

[0004] A booster device fixing portion 1130 to which the booster device 1010 is attached is provided integrally with the housing 1120 on the rear surface 1122 of the housing 1120. The booster device fixing portion 1130 is provided at a position that supports the booster device 1010 at a position that does not overlap with the antenna body when viewed from a direction perpendicular to the rear surface 1122 of the housing 1120. A protruding portion 1140 is provided integrally with the housing 1120 on the rear surface 1122 of the housing 1120. The protruding portion 1140 is provided on the rear surface 1122 of the housing 1120 toward the other side in the longitudinal direction. The protruding portion 1140 is connected to a support bracket 1002. The support bracket 1002 is fixed to an object 1001 to which the antenna device 1100 is to be attached and supports the antenna device 1100. In FIG. 26, a pole is illustrated as the object 1001 to which the antenna device 1100 is to be attached. When the object 1001 to be attached is a pole, the support bracket 1002 is fixed to the object 1001 by being assembled to a clamping plate 1003 with two headed bolts 1004 .

[0005] A terminal cover 1150 is provided integrally with the housing 1120 on the rear surface 1122 of the housing 1120. The terminal cover 1150 is provided at approximately the center in the longitudinal direction on the rear surface 1122 of the housing 1120. The booster device 1010 has an approximately rectangular parallelepiped shape. The booster device 1010 includes two legs 1011. Each of the two legs 1011 protrudes from the rear surface of the booster device 1010. The two legs 1011 extend parallel to each other in the height direction with a gap between them in the width direction. Each of the two legs 1011 is provided with a through hole 1011h through which a wood screw 1020 for fixing the booster device 1010 is inserted. The booster device fixing portion 1130 includes an engagement portion 1131 that engages with the leg 1011 of the booster device 1010 to hold the booster device 1010.

[0006] The booster device fixing portion 1130 further includes a first wall portion 1132 extending from the outer periphery side of the back surface 1122 toward the inner periphery side thereof when viewed from a direction perpendicular to the back surface 1122 of the housing 1120, and a second wall portion 1133 extending in a direction intersecting the extending direction of the first wall portion 1132 when viewed from a direction perpendicular to the back surface 1122. The booster device fixing portion 1130 includes two engagement portions 1131, two first wall portions 1132, and two second wall portions 1133 corresponding to the two legs 1011 of the booster device 1010. The engagement portion 1131 elastically deforms and comes into sliding contact with the booster device 1010 when the booster device 1010 is slid along the back surface 1122 of the housing 1120 to be attached to or detached from the booster device fixing portion 1130. When the booster device 1010 is attached to the booster device fixing portion 1130, the engagement portion 1131, together with the first wall surface portion 1132 and the second wall surface portion 1133, surrounds the leg portion 1011 of the booster device 1010 to hold the booster device 1010. A screw hole 1139 is provided in the back surface 1122 of the housing 1120 at a position corresponding to the position of the through hole 1011h of the leg portion 1011 when the booster device 1010 is attached to the booster device fixing portion 1130. With the booster device 1010 attached to the booster device fixing portion 1130, the booster device 1010 can be fixed to the rear surface 1122 of the housing 1120 by inserting the wood screw 1020 into the through hole 1011h and screwing it into the screw hole 1139. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent No. 6672030 Summary of the Invention [Problem to be solved by the invention]

[0008] An object of the present invention is to provide an antenna case to which a device case capable of accommodating a device that handles received signals can be easily attached. [Means for solving the problem]

[0009] The antenna case of the present invention, which can achieve the above-mentioned object, is a thin rectangular prism-shaped antenna case capable of storing a planar antenna, and is capable of being temporarily fixed when attaching equipment that handles received signals.The antenna case has mounting claws formed on the rear surface and an anti-fall-off rib formed on the rear surface that can abut against the side edge of the equipment case.The main feature of the antenna case is that when the mounting claws are inserted into the insertion holes formed in the equipment case, the equipment case is temporarily fixed, and the equipment case passes over the anti-fall-off rib and abuts against the side edge of the equipment case, thereby being fixed in position. Another antenna case of the present invention, which can achieve the above-mentioned object, is a thin rectangular prism-shaped antenna case capable of storing a planar antenna, which can be temporarily fixed when attaching equipment that handles received signals, and has mounting claws formed on the rear surface and screw holes formed on the rear surface into which screws for fixing the position of the equipment case can be screwed, and its main feature is that when the mounting claws are inserted into insertion holes formed in the equipment case, the equipment case is temporarily fixed, the equipment case is aligned with the screw holes, and the screws of the equipment case are screwed into the screw holes to fix the position. Furthermore, still another antenna case of the present invention, which can achieve the above-mentioned object, is an antenna case that is thin and rectangular, can store a planar antenna, and can be temporarily fixed when attaching equipment that handles received signals, and is equipped with mounting claws formed on the rear surface, an anti-fall-off rib formed on the rear surface that can abut against the side edge of the equipment case, and a screw hole formed on the rear surface into which a screw for fixing the equipment case in position can be screwed, and the main feature is that when the mounting claws are inserted into the insertion holes formed in the equipment case, the equipment case is temporarily fixed, and the equipment case moves over the anti-fall-off rib and abuts against the side edge of the equipment case to fix its position, and the equipment case is aligned with the screw hole, and the screw of the equipment case is screwed into the screw hole to fix its position.

[0010] In the antenna case of the present invention, the sets of the mounting claws and the anti-fall-off ribs and / or the screw holes may be formed at symmetrical positions on the rear surface. In addition, in the antenna case of the present invention, a guide rib may be formed laterally on the back surface, and when the mounting claw is inserted into the insertion hole of the equipment case, the guide rib moves within a groove on the back surface of the equipment case, thereby restricting the position of the equipment case in the vertical direction. Effect of the Invention

[0011] In the antenna case of the present invention, a device case capable of housing a device for handling received signals can be fixed to the back of an antenna case capable of housing a planar antenna. This allows the wiring cable connected to the device case to be short, thereby reducing cable loss and improving characteristic quality. In addition, a wall mounting bracket for the device case is not required, and the number of parts can be reduced. Furthermore, there is no need to secure space to install the device case elsewhere, and space can be saved. Furthermore, since the device case is hidden behind the antenna case, the appearance of the antenna is not impaired. Furthermore, since the device case is fixed to the antenna back, the antenna direction adjustment process and the level adjustment process of the amplifier built into the device case can be performed simultaneously on the spot. Furthermore, since the device case can be moved laterally to be attached and removed, the device case can be removed and attached without being hindered by gutters and the like above the antenna case. Furthermore, when removing and attaching the device case, there is no need to look into the antenna case from above, and the position can be confirmed from the side of the antenna case, making the installation easier. Furthermore, when the device case is fixed in position by abutting the fall-off prevention rib against the side edge of the device case, the device case can be fixed in position by moving it laterally, so that the device case can be easily fixed to the antenna case in a short time. Furthermore, when the device case is fixed in position by screwing in, there is only one screw hole for screwing in, so that the device case can be easily fixed to the antenna case in a short time. [Brief description of the drawings]

[0012] [Figure 1] 1A and 1B are a front view and a rear view showing the configuration of an antenna case according to a first embodiment of the present invention. [Diagram 2] 1A to 1C are a side view, a top view, and a bottom view showing the configuration of an antenna case according to a first embodiment of the present invention. [Diagram 3] FIG. 2 is a rear view showing a configuration in which a device case is fixed to an antenna case in the first embodiment of the present invention. [Figure 4] 1 is a rear perspective view showing the configuration of a device case that can be fixed to an antenna case according to an embodiment of the present invention; [Diagram 5] 13 is a rear perspective view showing the configuration of another device case that can be fixed to the antenna case according to the embodiment of the present invention. FIG. [Figure 6] FIG. 4 is a perspective view showing a process of fixing another device case to the antenna case according to the first embodiment of the present invention. [Figure 7] 13A is a rear view showing the configuration of an antenna case according to a second embodiment of the present invention, and FIG. 13B is a rear view showing the configuration in which a device case is fixed to the antenna case according to the second embodiment of the present invention. [Figure 8] FIG. 11 is a rear view showing a configuration in which another device case is fixed to the antenna case according to the second embodiment of the present invention. [Figure 9] FIG. 11 is a rear perspective view showing how another device case is fixed to the antenna case according to the second embodiment of the present invention. [Figure 10] FIG. 11 is a rear perspective view showing how another modified device case is fixed to the antenna case according to the second embodiment of the present invention. [Figure 11] 13A is a rear view showing the configuration of an antenna case according to a third embodiment of the present invention, and FIG. 13B is a rear view showing the configuration in which a device case is fixed to the antenna case according to the third embodiment of the present invention. [Figure 12] FIG. 11 is a rear view showing a configuration in which another device case is fixed to the antenna case according to the third embodiment of the present invention. [Figure 13] FIG. 11 is a rear view showing the configuration of the antenna case according to the fourth embodiment of the present invention. [Figure 14]FIG. 13 is a rear view showing a configuration in which a device case is fixed to an antenna case in the fourth embodiment of the present invention. [Figure 15] 13 is a diagram showing the configuration of the rear surface of another device case when the other device case is fixed to the antenna case according to the fourth embodiment of the present invention. FIG. [Figure 16] FIG. 13 is a rear view showing the configuration of the antenna case according to the fifth embodiment of the present invention. [Figure 17] FIG. 13 is a rear perspective view showing the configuration of an antenna case according to a fifth embodiment of the present invention. [Figure 18] FIG. 13 is a rear view showing a configuration in which a device case is fixed to an antenna case in the fifth embodiment of the present invention. [Figure 19] FIG. 13 is a rear perspective view showing a configuration in which a device case is fixed to an antenna case in a fifth embodiment of the present invention. [Figure 20] FIG. 13 is a rear view showing a configuration in which another device case is fixed to the antenna case according to the fifth embodiment of the present invention. [Figure 21] FIG. 13 is a rear perspective view showing a configuration in which another device case is fixed to an antenna case according to a fifth embodiment of the present invention. [Figure 22] FIG. 13 is a rear view showing a process of fixing another device case to the antenna case according to the fifth embodiment of the present invention. [Diagram 23] FIG. 13 is a rear view showing a configuration in which another device case is further fixed to the antenna case according to the fifth embodiment of the present invention. [Figure 24] FIG. 13 is a rear perspective view showing a configuration in which another device case is further fixed to the antenna case according to the fifth embodiment of the present invention. [Diagram 25] 13 is a rear perspective view showing the configuration of still another device case that can be fixed to the antenna case according to the embodiment of the present invention. FIG. [Figure 26] FIG. 11 is a rear perspective view showing a configuration in which a booster unit is fixed to a conventional antenna unit. [Figure 27] FIG. 11 is a rear perspective view showing an antenna device and a booster device separated from each other in a conventional antenna device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] <Antenna case according to a first embodiment of the present invention> Antenna case 1 of the first embodiment of the present invention can store a planar antenna capable of receiving terrestrial digital television broadcasts. The configuration of antenna case 1 of the first embodiment is shown in Fig. 1(a)(b) and Fig. 2(a), (b) and (c). Fig. 1(a) is a front view of antenna case 1 of the first embodiment, Fig. 1(b) is a rear view of antenna case 1 of the first embodiment, Fig. 2(a) is a side view of antenna case 1 of the first embodiment, Fig. 2(b) is a top view of antenna case 1 of the first embodiment, and Fig. 2(c) is a bottom view of antenna case 1 of the first embodiment. As shown in these figures, the antenna case 1 of the first embodiment is a thin rectangular parallelepiped, and the inside is a storage space. The antenna case 1 of the first embodiment is composed of a front case 10 made of synthetic resin, and a rear case 11 made of synthetic resin that is fixed to the front case 10 by fitting or the like so as to close the opening on the rear side of the front case 10. An opening is provided on the front side of the rear case 11, and the opening is closed by the front case 10 to form a storage space inside. A planar antenna can be stored in this storage space. On the rear side of the antenna case 1 of the first embodiment, i.e., on the rear side of the rear case 11, an antenna mounting part 13 for fixing the antenna case 1 to a mounting object is integrally formed at the bottom, and a power supply part 12 is formed in the center, which is provided with a coaxial terminal that outputs a reception signal of a terrestrial digital television broadcast received by the planar antenna stored in the antenna case 1.

[0014] In addition, the upper part of the rear case 11 is formed with a first attachment claw 111a and a second attachment claw 111b, which are symmetrically shaped, and a pair of first fall-off prevention ribs 113a, 113b are formed at symmetrical positions slightly below the first attachment claw 111a and the second attachment claw 111b. Furthermore, a pair of second fall-off prevention ribs 114a, 114b are formed at symmetrical positions slightly below the pair of first fall-off prevention ribs 113a, 113b near the left and right outer edges. The first attachment claw 111a and the second attachment claw 111b are formed in an L-shape as shown in FIG. 2(b), and are composed of a thin plate-like flat portion formed at a predetermined distance from the back surface and a rising portion formed at the rear end of the flat portion, and are formed so that the width of the tip of the flat portion gradually narrows. The first attachment claw 111a is formed to the right of the center line of the back surface, with its tip facing right when viewed from the back surface, and the second attachment claw 111b is formed to the left of the center line of the back surface, with its tip facing left when viewed from the back surface. The pair of first anti-dropout ribs 113a, 113b and the pair of second anti-dropout ribs 114a, 114b are formed to a predetermined height from the back surface with a predetermined width in the vertical direction, with the surfaces facing inward being abutment surfaces that rise at approximately right angles, and the surfaces facing outward being formed into gentle slopes. A pair of screw holes 112a, 112b are formed slightly above the first mounting claw 111a and the second mounting claw 111b. The pair of screw holes 112a, 112b are used to fasten a third device case 17, which will be described later.

[0015] The device case can be fixed to the rear surface of the antenna case 1, and when fixing, either the first mounting claw 111a or the second mounting claw 111b is inserted into the insertion hole of the device case. The device case has a built-in amplifier, mixer, or amplifier and mixer, which are devices that handle received signals. The first device case 15 shown in FIG. 4 has a built-in amplifier, and the second device case 16 shown in FIG. 5, which is one size larger than the first device case 15, has a built-in amplifier and mixer. FIG. 4 is a perspective view of the rear surface side showing the configuration of the first device case 15, and the first device case 15 is composed of a main body 210 and a lid 211 that covers the front surface and both side surfaces of the main body 210. The portions of the lid 211, which has a substantially U-shaped cross section, that extend from the upper portions of both side surfaces to the rear surface are pivotally supported by the upper portions of the respective side surfaces of the main body 210, and the lid 211 can be opened and closed freely with respect to the main body 210. When the lid 211 is rotated relative to the main body 210 to close, the lid 211 engages with the main body 210 to maintain the closed state. On the back surface of the main body 210, a mounting portion 212 for fixing the first device case 15 to a mounting target is formed protruding rearward from the center, and a pair of legs 213a, 213b are formed protruding rearward from both the left and right sides of the lower part of the back surface of the main body 210. An insertion hole 214 having a width W1 is formed in the center of the mounting portion 212, and a plate-shaped mounting piece having a width of W1 or less can be inserted into the insertion hole 214 from the lateral direction. In addition, a pair of protrusions are formed on both the left and right sides of the upper part of the mounting portion 212. Furthermore, three circular protrusion holes are formed on the lower surface of the main body 210 through which a coaxial terminal provided in a built-in amplifier can protrude.

[0016] FIG. 3(a) shows the first device case 15 configured as described above, fixed to the rear surface of the antenna case 1. FIG. 3(a) is a rear view showing the first device case 15 fixed to the rear surface of the antenna case 1. As shown in this figure, the flat portion of the first mounting claw 111a, which is a plate-like member having a width of W1 or less, is inserted into the insertion hole 214 of the first device case 15 to temporarily fix the first device case 15. When inserted, the foot 213a of the first device case 15 climbs over the gentle slope of the first fall-off prevention rib 113a, and the side edge of the foot 213a abuts against the abutment surface of the first fall-off prevention rib 113a that rises at a substantially right angle, thereby fixing the position of the first device case 15. As a result, the position of the first device case 15 is fixed and fixed by the first fall-off prevention rib 113a without rattling. That is, the action of the first mounting claws 111a and the first fall-off prevention rib 113a allows the first device case 15 to be securely fixed at a predetermined position on the back surface of the antenna case 1. A coaxial cable connected to a coaxial terminal that outputs a received signal from the power supply unit 12 is connected to a coaxial terminal that inputs the received signal protruding to the outside of an amplifier built into the first device case 15, and a coaxial cable connected to a coaxial terminal that outputs an amplified received signal protruding to the outside of the amplifier is connected to a television receiver or a recorder.

[0017] The second device case 16 shown in FIG. 5, which is slightly larger than the first device case 15, has an amplifier and a mixer built in, and FIG. 5 is a perspective view of the rear side showing the configuration of the second device case 16. The second device case 16 is composed of a main body 230 and a lid 231 that covers the front and both side surfaces of the main body 230. The lid 231 has a substantially U-shaped cross section, and portions extending from the upper portions of both side surfaces to the rear side are pivotally supported on the upper portions of the respective side surfaces of the main body 230, so that the lid 231 can be opened and closed relative to the main body 230. When the lid 231 is rotated relative to the main body 230 to close it, the lid 231 is engaged with the main body 230 to maintain the closed state. On the back surface of the main body 230, a first mounting portion 232a and a second mounting portion 232b for fixing the second device case 16 to a mounting target are formed side by side at a predetermined interval in the vertical direction and protruding rearward, and a pair of legs 233a, 233b are formed protruding rearward from both the left and right sides of the lower part of the back surface of the main body 230. An insertion hole 234 having a width W1 is formed in the center of the first mounting portion 232a, and a plate-shaped mounting piece having a width of W1 or less can be inserted into the insertion hole 234 from the lateral direction. In addition, four circular protrusion holes are formed on the bottom surface of the main body 230 through which coaxial terminals provided on the built-in amplifier and mixer can protrude.

[0018] FIG. 3(b) shows the second device case 16 configured as above, fixed to the back of the antenna case 1. FIG. 3(b) is a rear view showing the second device case 16 fixed to the back of the antenna case 1. As shown in this figure, the flat portion of the first mounting claw 111a, which is a plate-like member with a width of W1 or less, is inserted into the insertion hole 234 of the second device case 16 to temporarily fix the second device case 16. When inserted, the foot 233a of the second device case 16 climbs over the gentle slope of the second drop-off prevention rib 114a, and the side edge of the foot 233a abuts against the abutment surface of the second drop-off prevention rib 114a that rises at a substantially right angle, thereby fixing the position of the second device case 16. As a result, the position of the second device case 16 is fixed and fixed by the second drop-off prevention rib 114a without rattling. That is, the action of the first mounting claws 111a and the second fall-off prevention rib 114a allows the second device case 16 to be securely fixed at a predetermined position on the back surface of the antenna case 1. A coaxial cable connected to a coaxial terminal that outputs a received signal from the power supply unit 12 is connected to a coaxial terminal that inputs a received signal protruding to the outside of an amplifier built into the second device case 16, and a coaxial cable connected to a coaxial terminal of a mixer that outputs one of the received signals amplified by the amplifier and distributed by the built-in mixer protruding to the outside is connected to a television receiver or a recorder. As described above, the first and second fall-off prevention ribs 113a and 114a are formed at positions corresponding to the different sizes of the first and second device cases 15 and 16. That is, the pair of first fall-off prevention ribs 113a, 113b and the pair of second fall-off prevention ribs 114a, 114b are formed at positions corresponding to the different sizes of the first and second device cases 15 and 16, and when it is desired to fasten a device case of a further different size, it is sufficient to provide an additional pair of fall-off prevention ribs at positions corresponding to the size of the device case.

[0019] Next, Figures 6(a), 6(b), and 6(c) are perspective views showing a process of fixing the second device case 16 to the back surface of the antenna case 1. In Figures 6(a), 6(b), and 6(c), the antenna case 1 is shown cut halfway. When the second device case 16 is fixed to the back surface of the antenna case 1, first, the second device case 16 is grasped and the first attachment claw 111a formed on the back surface of the antenna case 1 is opposed to the insertion hole 234 provided on the back surface. Then, as shown in Fig. 6(a), the foot 233a of the second device case 16 faces the second drop-off prevention rib 114a. In this state, when the second device case 16 is moved to the left side in the drawing, the first attachment claw 111a is inserted into the insertion hole 234 and the foot 233a climbs over the gentle slope of the second drop-off prevention rib 114a as shown in Fig. 6(b). Furthermore, when the second device case 16 is moved to the left in the drawing, the first attachment claw 111a is entirely inserted into the insertion hole 234, and the side edge of the foot 233a comes into contact with the abutment surface that rises almost at a right angle as the foot 233a climbs over the second fall-off prevention rib 114a, as shown in Fig. 6(c). As a result, the second device case 16 is fixed in position and secured by the second fall-off prevention rib 114a without rattling. That is, the action of the first attachment claw 111a and the second fall-off prevention rib 114a allows the second device case 16 to be reliably secured to a predetermined position on the back surface of the antenna case 1. The same applies when the first device case 15 is fixed to the back surface of the antenna case 1, but in this case, since the size of the first device case 15 is small, the foot 213a of the first device case 15 climbs over the first fall-off prevention rib 113a and abuts the side edge of the foot 213a against the abutment surface that rises at a substantially right angle. As a result, the first device case 15 is fixed in position by the first fall-off prevention rib 113a without rattling. That is, the first device case 15 is reliably fixed to a predetermined position on the back surface of the antenna case 1 by the action of the first mounting claw 111a and the first fall-off prevention rib 113a.

[0020] <Antenna case according to a second embodiment of the present invention> The antenna case 2 of the second embodiment of the present invention can store a planar antenna capable of receiving terrestrial digital television broadcasts. The configuration of the antenna case 2 of the second embodiment is shown in Fig. 7(a). Fig. 7(a) is a rear view of the antenna case 2 of the second embodiment. The front view, side view, top view, and bottom view of the antenna case 2 of the second embodiment are omitted because they are almost the same as the antenna case 1 of the first embodiment. The antenna case 2 of the second embodiment is configured such that, instead of the pair of first anti-fall-out ribs 113a, 113b and the pair of second anti-fall-out ribs 114a, 114b in the antenna case 1 of the first embodiment, a pair of first screw holes 125a, 125b and a pair of second screw holes 126a, 126b are provided, and the other configuration is similar to that of the antenna case 1 of the first embodiment.

[0021] The antenna case 2 of the second embodiment is a thin rectangular parallelepiped, and the inside is a storage space. The antenna case 2 of the second embodiment is composed of a front case (not shown) made of synthetic resin, and a rear case 21 made of synthetic resin that is fixed to the front case by fitting or the like so as to close the opening on the rear side of the front case. An opening is provided on the front side of the rear case 21, and the opening is closed by the front case to form a storage space inside, and a planar antenna can be stored in this storage space. As shown in FIG. 7(a), the rear side of the antenna case 2 of the second embodiment, i.e., the rear side of the rear case 21, is integrally formed with an antenna mounting part 13 for fixing the antenna case 2 to a mounting object at the bottom, and a power supply part 12 is formed in the center, which is provided with a coaxial terminal that outputs a reception signal of a terrestrial digital television broadcast received by the planar antenna stored in the antenna case 2.

[0022] In addition, the upper part of the rear case 21 is formed with a first mounting claw 111a and a second mounting claw 111b having a symmetrical shape, and a pair of first screw holes 125a, 125b are formed at symmetrical positions slightly below the first mounting claw 111a and the second mounting claw 111b. Furthermore, a pair of second screw holes 126a, 126b are formed at symmetrical positions slightly below the pair of first screw holes 125a, 125b near the left and right outer edges. The configurations of the first mounting claw 111a and the second mounting claw 111b are the same as those of the antenna case 1 of the first embodiment, so a description thereof will be omitted. In addition, the pair of first screw holes 125a, 125b and the pair of second screw holes 126a, 126b are screwed with screws for fastening the first device case 15 or the second device case 16.

[0023] The first device case 15 or the second device case 16 can be fixed to the back surface of the antenna case 2 of the second embodiment, and when fixing, either the first mounting claw 111a or the second mounting claw 111b is inserted into the insertion hole 214 or the insertion hole 234 of the first device case 15 or the second device case 16. The first device case 15 has the configuration shown in Fig. 4 and has an amplifier built-in, while the second device case 16, which is one size larger than the first device case 15, has the configuration shown in Fig. 5 and has an amplifier and a mixer built-in. The configurations of the first device case 15 and the second device case 16 have already been explained above, so a description thereof will be omitted.

[0024] FIG. 7(b) shows a rear view showing the state in which the first device case 15 is fixed to the rear surface of the antenna case 2. As shown in FIG. 7(b), the flat portion of the first attachment claw 111a, which is a plate-like member having a width of W1 or less, is inserted into the insertion hole 214 of the first device case 15 to temporarily fix the first device case 15, and when inserted, the foot 213a of the first device case 15 is aligned with the first screw hole 125a. Then, when a screw (not shown) is inserted into a screw hole formed at the tip of the foot 213a and screwed into the first screw hole 125a, the first device case 15 is fixed in position. As a result, the first device case 15 can be reliably fixed to the rear surface of the antenna case 2 of the second embodiment by the action of the first attachment claw 111a and the screw screwed into the first screw hole 125a. The coaxial cable connected to the coaxial terminal that outputs the received signal of the power supply unit 12 is connected to a coaxial terminal that inputs the received signal protruding to the outside of the amplifier built into the first device case 15, and the coaxial cable connected to the coaxial terminal that outputs the amplified received signal protruding to the outside of the amplifier is connected to a television receiver or a recorder.

[0025] The second device case 16 shown in FIG. 5, which is slightly larger than the first device case 15, has an amplifier and a mixer built in. FIG. 8 shows the second device case 16 fixed to the back of the antenna case 2 of the second embodiment. FIG. 8 is a rear view showing the second device case 16 fixed to the back of the antenna case 2 of the second embodiment. As shown in this figure, the flat portion of the first mounting claw 111a, which is a plate-like member with a width of W1 or less, is inserted into the insertion hole 234 of the second device case 16 to temporarily fix the second device case 16, and when inserted, the foot 233a of the second device case 16 is aligned with the second screw hole 126a. Then, when a screw (not shown) is inserted into a screw hole formed at the tip of the foot 233a and screwed into the second screw hole 126a, the second device case 16 is fixed in position. As a result, the second device case 16 can be reliably fixed to the back surface of the antenna case 2 of the second embodiment by the action of the first mounting claw 111a and the screw screwed into the second screw hole 126a. A coaxial cable connected to a coaxial terminal that outputs a received signal from the power supply unit 12 is connected to a coaxial terminal that inputs a received signal protruding to the outside of an amplifier built into the second device case 16, and a coaxial cable connected to a coaxial terminal of a mixer that outputs one of the received signals amplified by the amplifier and distributed by a built-in mixer protruding to the outside is connected to a television receiver or a recorder. As described above, the first screw hole 125a and the second screw hole 126a are formed at positions corresponding to the different sizes of the first device case 15 and the second device case 16. That is, the pair of first screw holes 125a, 125b and the pair of second screw holes 126a, 126b are formed at positions corresponding to the different sizes of the first device case 15 and the second device case 16, and when it is desired to fasten a device case of a further different size, it is sufficient to provide an additional pair of screw holes at positions corresponding to the size of the device case.

[0026] 9 is a perspective view of the rear side showing how the second device case 16 is fixed to the rear surface of the antenna case 1 of the first embodiment or the antenna case 2 of the second embodiment. When fixing the second device case 16 to the rear surface of the antenna case 1 of the first embodiment or the antenna case 2 of the second embodiment, the second device case 16 is grasped and the first mounting claws 111a formed on the rear surface of the antenna case 1 of the first embodiment or the antenna case 2 of the second embodiment are opposed to the insertion holes 234 provided on the rear surface. Next, when the second device case 16 is moved as shown by the arrow, the first mounting claws 111a are inserted into the insertion holes 234. 10 shows a rear perspective view of the configuration of a modified second device case 16-2 in which an insertion guide portion 235 is added to the insertion hole 234 in the second device case 16, and a manner in which the second device case 16-2 is fixed to the rear surface of the antenna case 1 of the first embodiment or the antenna case 2 of the second embodiment will be described with reference to FIG. 10. When the second device case 16-2 is fixed to the rear surface of the antenna case 1 of the first embodiment or the antenna case 2 of the second embodiment, the second device case 16-2 is grasped and the first mounting claw 111a formed on the rear surface of the antenna case 1 of the first embodiment or the antenna case 2 of the second embodiment is opposed to the insertion hole 234 to which the insertion guide portion 235 is added and which is provided on the rear surface. Next, when the second device case 16-2 is moved as shown by the arrow, the first mounting claw 111a is inserted into the insertion hole 234 to which the insertion guide portion 235 is added.

[0027] <Antenna case according to a third embodiment of the present invention> Antenna case 3 of the third embodiment of the present invention can store a planar antenna capable of receiving terrestrial digital television broadcasts. The configuration of antenna case 3 of the third embodiment is shown in Fig. 11(a). Fig. 11(a) is a rear view of antenna case 3 of the third embodiment. The front view, side view, top view, and bottom view of antenna case 3 of the third embodiment are omitted because they are almost the same as antenna case 1 of the first embodiment. The antenna case 3 of the third embodiment is configured such that, in the antenna case 1 of the first embodiment, a first guide rib 311a is formed slightly above the pair of first mounting claws 111a and second mounting claws 111b, and a second guide rib 311b is formed directly below the pair of second anti-fall-off ribs 114a, 114b, and the other configurations are similar to those of the antenna case 1 of the first embodiment.

[0028] The antenna case 3 of the third embodiment is a thin rectangular parallelepiped, and the inside is a storage space. The antenna case 3 of the third embodiment is composed of a front case (not shown) made of synthetic resin, and a rear case 31 made of synthetic resin that is fixed to the front case by fitting or the like so as to close the opening on the rear side of the front case. An opening is provided on the front side of the rear case 31, and the opening is closed by the front case to form a storage space inside, and a planar antenna can be stored in this storage space. As shown in FIG. 11a), the rear side of the antenna case 3 of the third embodiment, i.e., the rear side of the rear case 31, is integrally formed with an antenna mounting part 13 for fixing the antenna case 3 to a mounting object at the bottom, and a power supply part 12 is formed in the center, which is provided with a coaxial terminal that outputs a reception signal of a terrestrial digital television broadcast received by the planar antenna stored in the antenna case 3.

[0029] In addition, the upper part of the rear case 31 is formed with a first mounting claw 111a and a second mounting claw 111b having a symmetrical shape, and a pair of first fall-off prevention ribs 113a, 113b are formed at symmetrical positions slightly below the first mounting claw 111a and the second mounting claw 111b. Furthermore, a pair of second fall-off prevention ribs 114a, 114b are formed at symmetrical positions slightly below the pair of first fall-off prevention ribs 113a, 113b near the left and right outer edges. The configurations of the first mounting claw 111a and the second mounting claw 111b and the configurations of the first fall-off prevention ribs 113a, 113b and the second fall-off prevention ribs 114a, 114b are as described in the antenna case 1 of the first embodiment, so the description thereof will be omitted. The pair of screw holes 112a, 112b described above are formed slightly above the first mounting claw 111a and the second mounting claw 111b, and the first guide rib 311a is formed slightly above the pair of screw holes 112a, 112b. The first guide rib 311a is divided into three parts in the horizontal direction and is formed as a thin, linear protrusion of a predetermined height. In addition, the second guide rib 311b is formed immediately below the pair of second fall-off prevention ribs 114a, 114b. The second guide rib 311b is formed in the horizontal direction with a width approximately equal to the horizontal width of the rear case 31, and is formed as a thin, linear protrusion of a predetermined height.

[0030] The first device case 15 or the second device case 16 can be fixed to the back surface of the antenna case 3 of the third embodiment, and when fixing, either the first mounting claw 111a or the second mounting claw 111b is inserted into the insertion hole 214 or the insertion hole 234 of the first device case 15 or the second device case 16. The first device case 15 has the configuration shown in Fig. 4 and has a built-in amplifier, while the second device case 16, which is one size larger than the first device case 15, has the configuration shown in Fig. 5 and has a built-in amplifier and mixer. The configurations of the first device case 15 and the second device case 16 have already been explained above, so a description thereof will be omitted.

[0031] 11(b) is a rear view showing a state in which the first device case 15 is fixed to the rear of the antenna case 3 of the third embodiment. As shown in FIG. 11(b), the flat portion of the first attachment claw 111a, which is a plate-like first attachment claw with a width of W1 or less, is inserted into the insertion hole 214 of the first device case 15 to temporarily fix the first device case 15, and the first guide rib 311a is inserted into a groove formed on the rear of the first device case 15 to restrict the position in the vertical direction, and the groove is slidably contacted with the first guide rib 311a when the first device case 15 is inserted into the first attachment claw 111a, thereby guiding the first device case 15. Then, the foot 213a goes over the gentle slope of the first fall-off prevention rib 113a, and the side edge of the foot 213a contacts the contact surface of the first fall-off prevention rib 113a that rises at a substantially right angle, thereby fixing the position of the first device case 15. As a result, the first device case 15 is fixed in position by the first fall-off prevention rib 113a without rattling. That is, the first device case 15 can be reliably fixed to a predetermined position on the back surface of the antenna case 3 of the third embodiment by the action of the first mounting claw 111a and the first fall-off prevention rib 113a. Then, a coaxial cable connected to a coaxial terminal that outputs a received signal from the power supply unit 12 is connected to a coaxial terminal that inputs a received signal protruding to the outside of an amplifier built into the first device case 15, and a coaxial cable connected to a coaxial terminal that outputs an amplified received signal protruding to the outside of the amplifier is connected to a television receiver or a recorder.

[0032] The second device case 16 shown in FIG. 5, which is slightly larger than the first device case 15, has an amplifier and a mixer built in. FIG. 12 shows the second device case 16 fixed to the back of the antenna case 3 of the third embodiment. FIG. 12 is a rear view showing the second device case 16 fixed to the back of the antenna case 3 of the third embodiment. As shown in this figure, the flat portion of the first mounting claw 111a, which is a plate-like member with a width of W1 or less, is inserted into the insertion hole 234 of the second device case 16 to temporarily fix the second device case 16, and the first guide rib 311a is inserted into the groove formed on the back of the second device case 16 to restrict the position in the vertical direction. The lower surfaces of the feet 233a and 233b of the second device case 16 come into contact with the upper surface of the second guide rib 311b to restrict the position in the vertical direction. Then, when the second device case 16 is inserted into the first attachment claw 111a, the groove portion slides against the first guide rib 311a, and the lower surfaces of the feet 233a and 233b slide against the second guide rib 311b, thereby guiding the second device case 16. When the second device case 16 is guided, the feet 233a climb over the gentle slope of the second fall-off prevention rib 114a, and the side edge of the feet 233a abuts against the abutment surface of the second fall-off prevention rib 114a that rises at a substantially right angle, thereby fixing the position of the second device case 16. As a result, the second device case 16 is fixed in position by the second fall-off prevention rib 114a without rattling. That is, the action of the first attachment claw 111a and the second fall-off prevention rib 114a allows the second device case 16 to be reliably fixed to a predetermined position on the back surface of the antenna case 3 of the third embodiment. The coaxial cable connected to the coaxial terminal that outputs the received signal of the power supply unit 12 is connected to a coaxial terminal that inputs the received signal protruding to the outside of the amplifier built into the first device case 15, and the coaxial cable connected to the coaxial terminal that outputs the amplified received signal protruding to the outside of the amplifier is connected to a television receiver or a recorder.

[0033] As described above, when the first equipment case 15 or the second equipment case 16 is fixed to the back surface of the antenna case 3 of the third embodiment, the first equipment case 15 or the second equipment case 16 is guided and moves laterally by the first guide rib 311a or the first guide rib 311a and the second guide rib 311b, making the fixing operation easy. The first and second fall-off prevention ribs 113a and 114a are formed at positions corresponding to the different sizes of the first and second device cases 15 and 16. That is, the pair of first fall-off prevention ribs 113a, 113b and the pair of second fall-off prevention ribs 114a, 114b are formed at positions corresponding to the different sizes of the first and second device cases 15 and 16, and when it is desired to fasten a device case of a further different size, an additional pair of fall-off prevention ribs may be provided at positions corresponding to the size of the device case.

[0034] <Antenna case according to a fourth embodiment of the present invention> Antenna case 4 of the fourth embodiment of the present invention can accommodate a planar antenna capable of receiving terrestrial digital television broadcasts. The configuration of antenna case 4 of the fourth embodiment is shown in Fig. 13. Fig. 13 is a rear view of antenna case 4 of the fourth embodiment. The front view, side view, top view, and bottom view of antenna case 4 of the fourth embodiment are omitted because they are almost the same as antenna case 1 of the first embodiment. The antenna case 4 of the fourth embodiment is configured such that, instead of the pair of first anti-fall-out ribs 113a, 113b and the pair of second anti-fall-out ribs 114a, 114b in the antenna case 3 of the third embodiment, a pair of first screw holes 125a, 125b and a pair of second screw holes 126a, 126b are provided, and the other configuration is similar to that of the antenna case 3 of the third embodiment.

[0035] The antenna case 4 of the fourth embodiment is a thin rectangular parallelepiped, and the inside is a storage space. The antenna case 4 of the fourth embodiment is composed of a front case (not shown) made of synthetic resin, and a rear case 41 made of synthetic resin that is fixed to the front case by fitting or the like so as to close the opening on the rear side of the front case. An opening is provided on the front side of the rear case 41, and the opening is closed by the front case to form a storage space inside, and a planar antenna can be stored in this storage space. As shown in FIG. 13, an antenna mounting part 13 for fixing the antenna case 4 to a mounting object is integrally formed at the bottom of the rear side of the antenna case 4 of the fourth embodiment, i.e., the rear side of the rear case 41, and a power supply part 12 is formed in the center, which is provided with a coaxial terminal that outputs a reception signal of a terrestrial digital television broadcast received by the planar antenna stored in the antenna case 4.

[0036] In addition, the upper part of the rear case 41 is formed with a first mounting claw 111a and a second mounting claw 111b having a symmetrical shape, and a pair of first screw holes 125a, 125b are formed at symmetrical positions slightly below the first mounting claw 111a and the second mounting claw 111b. Furthermore, a pair of second screw holes 126a, 126b are formed at symmetrical positions slightly below the pair of first screw holes 125a, 125b near the left and right outer edges. The configurations of the first mounting claw 111a and the second mounting claw 111b are the same as those of the antenna case 1 of the first embodiment, so their description will be omitted. The configurations of the first screw holes 125a, 125b and the second screw holes 126a, 126b are the same as those of the antenna case 2 of the second embodiment, so their description will be omitted. The above-mentioned pair of screw holes 112a, 112b are formed slightly above the first mounting claw 111a and the second mounting claw 111b, and the first guide rib 311a is formed slightly above the pair of screw holes 112a, 112b. The first guide rib 311a is divided into three parts in the horizontal direction and is formed as a thin, linear protrusion of a predetermined height. In addition, the second guide rib 311b is formed immediately below the pair of second screw holes 126a, 126b. The second guide rib 311b is formed in the horizontal direction with a width approximately equal to the horizontal width of the rear case 41, and is formed as a thin, linear protrusion of a predetermined height.

[0037] The first device case 15 or the second device case 16 can be fixed to the back surface of the antenna case 4 of the fourth embodiment, and when fixing, either the first mounting claw 111a or the second mounting claw 111b is inserted into the insertion hole 214 or the insertion hole 234 of the first device case 15 or the second device case 16. The first device case 15 has the configuration shown in Fig. 4 and has an amplifier built-in, while the second device case 16, which is one size larger than the first device case 15, has the configuration shown in Fig. 5 and has an amplifier and a mixer built-in. The configurations of the first device case 15 and the second device case 16 have already been explained above, so a description thereof will be omitted.

[0038] FIG. 14(a) is a rear view showing the state in which the first device case 15 is fixed to the rear of the antenna case 4. As shown in FIG. 14(a), the flat portion of the first mounting claw 111a, which is a plate-like first device case with a width of W1 or less, is inserted into the insertion hole 214 of the first device case 15 to temporarily fix the first device case 15, and the first guide rib 311a is inserted into a groove formed on the rear of the first device case 15 to regulate the position in the vertical direction, and the groove is slidably contacted with the first guide rib 311a when the first device case 15 is inserted into the first mounting claw 111a, thereby guiding the first device case 15. Then, when the first device case 15 is inserted, the foot 213a of the first device case 15 is aligned with the first screw hole 125a. Then, when a screw (not shown) is screwed into a screw hole formed at the tip of the foot 213a, the first device case 15 is fixed in position. As a result, the first device case 15 can be reliably fixed to the back surface of the antenna case 4 of the fourth embodiment by the action of the first mounting claw 111a and the screw screwed into the first screw hole 125a. Then, a coaxial cable connected to a coaxial terminal that outputs a received signal from the power supply unit 12 is connected to a coaxial terminal that inputs a received signal protruding to the outside of an amplifier built into the first device case 15, and a coaxial cable connected to a coaxial terminal that outputs an amplified received signal protruding to the outside of the amplifier is connected to a television receiver or a recorder.

[0039] The second device case 16 shown in FIG. 5, which is slightly larger than the first device case 15, has an amplifier and a mixer built in. FIG. 14(b) shows the second device case 16 fixed to the back of the antenna case 4 of the fourth embodiment. FIG. 14(b) is a rear view showing the second device case 16 fixed to the back of the antenna case 4 of the fourth embodiment. As shown in this figure, the flat portion of the first mounting claw 111a, which is a plate-like member with a width of W1 or less, is inserted into the insertion hole 234 of the second device case 16 to temporarily fix the second device case 16, and the first guide rib 311a is inserted into the groove formed on the back of the second device case 16 to restrict the position in the vertical direction. The lower surfaces of the feet 233a and 233b of the second device case 16 come into contact with the upper surface of the second guide rib 311b to restrict the position in the vertical direction. When the second device case 16 is inserted into the first mounting claw 111a, the groove portion slides against the first guide rib 311a, and the lower surfaces of the feet 233a and 233b slide against the second guide rib 311b, thereby guiding the second device case 16. As the second device case 16 is guided, the feet 233a of the second device case 16 are aligned with the second screw hole 126a. Then, when a screw (not shown) is inserted into a screw hole formed at the tip of the foot 233a and screwed into the second screw hole 126a, the second device case 16 is fixed in position. As a result, the second device case 16 can be reliably fixed to the back surface of the antenna case 4 of the fourth embodiment by the action of the first mounting claw 111a and the screw screwed into the second screw hole 126a. The coaxial cable connected to the coaxial terminal that outputs the received signal of the power supply unit 12 is connected to a coaxial terminal that inputs the received signal protruding to the outside of the amplifier built into the second device case 16, and a coaxial cable connected to the coaxial terminal of the mixer that outputs one of the received signals amplified by the amplifier protruding to the outside and distributed by the built-in mixer is connected to a television receiver or recorder.

[0040] 15 shows a state in which the first guide rib 311a is inserted into a groove formed on the back surface of the second device case 16, and the lower surfaces of the legs 233a, 233b of the second device case 16 are in contact with the upper surface of the second guide rib 311b. Fig. 15 is a rear view showing the relationship between the second device case 16 and the first guide rib 311a and second guide rib 311b. As shown in FIG. 15, a groove having a predetermined width is formed between the first mounting claw 111a and the second mounting portion 232b formed on the back surface of the second device case 16. The first guide rib 311a can be inserted into this groove. It can also be seen that when the first guide rib 311a is inserted into the groove, the lower surfaces of the legs 233a, 233b of the second device case 16 come into contact with the second guide rib 311b. As a result, when the insertion hole 234 of the second device case 16 is inserted into the first mounting claw 111a, the position of the second device case 16 is restricted in the vertical direction and the second device case 16 can be moved in the horizontal direction. In this way, the second device case 16 is restricted in the vertical direction and moves in the horizontal direction, so that the fastening work can be easily performed.

[0041] As shown in FIG. 4, a pair of short horizontal projections are formed on the left and right sides of the upper part of the mounting part 212 on the rear surface of the first device case 15. A groove having a predetermined width is formed between the pair of projections and the upper surface of the mounting part 212. The first guide rib 311a can be inserted into this groove. As a result, when the insertion hole 214 of the first device case 15 is inserted into the first mounting claw 111a, the position of the first device case 15 is restricted in the vertical direction and the first device case 15 can be moved in the horizontal direction. Since the position of the first device case 15 is restricted in the vertical direction and moves in the horizontal direction in this way, the fastening work can be easily performed. The first screw hole 125a and the second screw hole 126a are formed at positions corresponding to the different sizes of the first device case 15 and the second device case 16. That is, the pair of first screw holes 125a, 125b and the pair of second screw holes 126a, 126b are formed at positions corresponding to the different sizes of the first device case 15 and the second device case 16, and when it is desired to fasten a device case of a further different size, it is sufficient to provide an additional pair of screw holes at positions corresponding to the size of the device case.

[0042] <Antenna case according to a fifth embodiment of the present invention> Antenna case 5 of the fifth embodiment of the present invention can store a planar antenna capable of receiving terrestrial digital television broadcasts. The configuration of antenna case 5 of the fifth embodiment is shown in Fig. 16 and Fig. 17. Fig. 16 is a rear view of antenna case 5 of the fifth embodiment, and Fig. 17 is a perspective view of the rear side of antenna case 5 of the fifth embodiment. The front view, side view, top view, and bottom view of antenna case 5 of the fifth embodiment are omitted because they are almost the same as antenna case 1 of the first embodiment. The antenna case 5 of the fifth embodiment is configured similarly to the antenna case 3 of the third embodiment, with the addition of a pair of first screw holes 125a, 125b and a pair of second screw holes 126a, 126b, and the other configurations are the same as those of the antenna case 3 of the third embodiment.

[0043] The antenna case 5 of the fifth embodiment is a thin rectangular parallelepiped, and the inside is a storage space. The antenna case 5 of the fifth embodiment is composed of a front case (not shown) made of synthetic resin, and a rear case 51 made of synthetic resin that is fixed to the front case by fitting or the like so as to close the opening on the rear side of the front case. An opening is provided on the front side of the rear case 51, and the opening is closed by the front case to form a storage space inside, and a planar antenna can be stored in this storage space. As shown in Figs. 16 and 17, an antenna mounting part 13 for fixing the antenna case 5 to a mounting object is integrally formed at the bottom of the rear side of the antenna case 5 of the fifth embodiment, i.e., the rear side of the rear case 51, and a power supply part 12 is formed in the center, which is provided with a coaxial terminal that outputs a reception signal of a terrestrial digital television broadcast received by the planar antenna stored in the antenna case 5.

[0044] In addition, the upper part of the rear case 51 is formed with a first attachment claw 111a and a second attachment claw 111b having a symmetrical shape, and a pair of first fall-off prevention ribs 113a, 113b are formed at symmetrical positions slightly below the first attachment claw 111a and the second attachment claw 111b. Furthermore, a pair of second fall-off prevention ribs 114a, 114b are formed at symmetrical positions slightly below the pair of first fall-off prevention ribs 113a, 113b near the left and right outer edges. Furthermore, a pair of first screw holes 125a, 125b are formed at symmetrical positions near the pair of first fall-off prevention ribs 113a, 113b, and a pair of first screw holes 125a, 125b are formed at symmetrical positions near the pair of second fall-off prevention ribs 114a, 114b. The configurations of the first mounting claw 111a and the second mounting claw 111b and the configurations of the first fall-off prevention ribs 113a, 113b and the second fall-off prevention ribs 114a, 114b are similar to those of the antenna case 1 of the first embodiment, so a description thereof will be omitted. Also, the configurations of the first screw holes 125a, 125b and the second screw holes 126a, 126b are similar to those of the antenna case 2 of the second embodiment, so a description thereof will be omitted. The above-mentioned pair of screw holes 112a, 112b are formed slightly above the first mounting claw 111a and the second mounting claw 111b, and the first guide rib 311a is formed slightly above the pair of screw holes 112a, 112b. The first guide rib 311a is divided into three parts in the horizontal direction and is formed as a thin, linear protrusion of a predetermined height. In addition, the second guide rib 311b is formed immediately below the pair of second fall-off prevention ribs 114a, 114b and the pair of second screw holes 126a, 126b. The second guide rib 311b is formed in the horizontal direction with a width approximately equal to the horizontal width of the rear case 41, and is formed as a thin, linear protrusion of a predetermined height.

[0045] The first device case 15 or the second device case 16 can be fixed to the back surface of the antenna case 5 of the fifth embodiment, and when fixing, either the first mounting claw 111a or the second mounting claw 111b is inserted into the insertion hole 214 or the insertion hole 234 of the first device case 15 or the second device case 16. The first device case 15 has the configuration shown in Fig. 4 and has a built-in amplifier, while the second device case 16, which is one size larger than the first device case 15, has the configuration shown in Fig. 5 and has a built-in amplifier and mixer. The configurations of the first device case 15 and the second device case 16 have already been explained above, so a description thereof will be omitted.

[0046] Fig. 18 is a rear view showing the state in which the first device case 15 is fixed to the rear surface of the antenna case 5 of the fifth embodiment, and Fig. 19 is a perspective view of the rear surface side. As shown in these figures, the first device case 15 is temporarily fixed by inserting the flat portion of the first mounting claw 111a, which is a plate-like first device case with a width of W1 or less, into the insertion hole 214 of the first device case 15, and the first guide rib 311a is inserted into a groove formed in the rear surface of the first device case 15 to restrict its position in the vertical direction, and the first device case 15 is guided by the groove being in sliding contact with the first guide rib 311a when being inserted into the first mounting claw 111a. When the first attachment claw 111a is inserted, the foot 213a climbs over the gentle slope of the first fall-off prevention rib 113a, and the side edge of the foot 213a abuts against the abutment surface rising at a substantially right angle of the first fall-off prevention rib 113a, fixing the position of the first device case 15, and aligning the foot 213a of the first device case 15 with the first screw hole 125a. Then, when a screw (not shown) is inserted into a screw hole formed at the tip of the foot 213a and screwed into the first screw hole 125a, the position of the first device case 15 is fixed. As a result, the position of the first device case 15 is fixed and secured without rattling by the first fall-off prevention rib 113a and the screw screwed into the first screw hole 125a. That is, the first device case 15 can be reliably fixed to a predetermined position on the back surface of the antenna case 5 of the fifth embodiment by the action of the first mounting claw 111a, the first fall-off prevention rib 113a, and the screw screwed into the first screw hole 125a. A coaxial cable connected to a coaxial terminal that outputs a received signal from the power supply unit 12 is connected to a coaxial terminal that inputs a received signal protruding to the outside of an amplifier built into the first device case 15, and a coaxial cable connected to a coaxial terminal that outputs an amplified received signal protruding to the outside of the amplifier is connected to a television receiver or a recorder.

[0047] The second device case 16 shown in FIG. 5, which is slightly larger than the first device case 15, has an amplifier and a mixer built in. FIG. 20 shows the second device case 16 fixed to the back of the antenna case 5 of the fifth embodiment, and FIG. 21 shows a perspective view of the back side. As shown in these figures, the flat portion of the first mounting claw 111a, which is a plate-like member with a width of W1 or less, is inserted into the insertion hole 234 of the second device case 16 to temporarily fix the second device case 16, and the first guide rib 311a is inserted into the groove formed on the back of the second device case 16 to restrict the position in the vertical direction. The lower surfaces of the feet 233a and 233b of the second device case 16 are abutted against the second guide rib 311b to restrict the position in the vertical direction. When the first mounting claw 111a is inserted into the groove, the groove comes into sliding contact with the first guide rib 311a, and the lower surfaces of the feet 233a and 233b come into sliding contact with the second guide rib 311b, thereby guiding the second device case 16. As the second device case 16 is guided, the foot 233a climbs over the gentle slope of the second fall-off prevention rib 114a, and the side edge of the foot 233a comes into contact with the abutment surface rising at a substantially right angle of the second fall-off prevention rib 114a, thereby fixing the position of the second device case 16, and the foot 233a of the second device case 16 is aligned with the second screw hole 126a. Then, a screw (not shown) is inserted into a screw hole formed at the tip of the foot 233a and screwed into the second screw hole 126a, thereby fixing the position of the second device case 16. As a result, the second device case 16 is fixed in position without rattling by the second drop-off prevention rib 114a and the screw screwed into the second screw hole 126a. That is, the second device case 16 can be reliably fixed to a predetermined position on the back surface of the antenna case 5 of the fifth embodiment by the action of the first attachment claw 111a, the second drop-off prevention rib 114a, and the screw screwed into the second screw hole 126a. A coaxial cable connected to a coaxial terminal that outputs a received signal from the power supply unit 12 is connected to a coaxial terminal that inputs a received signal protruding to the outside of an amplifier built into the second device case 16, and a coaxial cable connected to a coaxial terminal of a mixer that outputs one of the received signals amplified by the amplifier and distributed by a built-in mixer protruding to the outside is connected to a television receiver or a recorder.

[0048] As described above, when the first equipment case 15 or the second equipment case 16 is fixed to the back surface of the antenna case 3 of the third embodiment, the first equipment case 15 or the second equipment case 16 is guided and moves laterally by the first guide rib 311a or the first guide rib 311a and the second guide rib 311b, making the fixing operation easy. The first and second fall-prevention ribs 113a and 114a as well as the first and second screw holes 125a and 126a are formed at positions corresponding to the different sizes of the first and second device cases 15 and 16. That is, the pair of first fall-prevention ribs 113a and 113b as well as the pair of second fall-prevention ribs 114a and 114b as well as the pair of first screw holes 125a and 125b as well as the second screw holes 126a and 126b are formed at positions corresponding to the different sizes of the first and second device cases 15 and 16, and when it is desired to fasten a device case of a different size, it is sufficient to additionally provide a pair of fall-prevention ribs and a pair of screw holes at positions corresponding to the size of the device case.

[0049] Next, a process of fixing the second device case 16 to the back surface of the antenna case 5 of the fifth embodiment is shown in rear views in Figures 22(a), (b), and (c). In Figures 22(a), (b), and (c), the configuration of part of the antenna case 5 and the second device case 16 is shown. When the second device case 16 is fixed to the back surface of the antenna case 5 of the fifth embodiment, first, the second device case 16 is grasped and the first mounting claw 111a formed on the back surface of the antenna case 5 is opposed to the insertion hole 234 provided on the back surface. Then, as shown in Fig. 22(a), the foot portion 233a of the second device case 16 faces the second fall-off prevention rib 114a, and the lower surface of the foot portion 233a comes into contact with the upper surface of the second guide rib 311b. In this state, when the second device case 16 is moved to the left side in the drawing, the lower surface of the foot 233a slides against the upper surface of the second guide rib 311b and moves while being guided, and the first mounting claw 111a is inserted into the insertion hole 234, and as shown in Fig. 22(b), the foot 233a climbs over the gentle slope of the second fall-off prevention rib 114a and the side edge of the foot 233a comes into contact with the abutment surface of the second fall-off prevention rib 114a that rises at a substantially right angle. Also, the foot 233a of the second device case 16 is aligned with the second screw hole 126a. Then, as shown in Fig. 22(c), a screw 511 is inserted into a screw hole formed at the tip of the foot 233a and screwed into the second screw hole 126a. As a result, by the action of the first mounting claw 111a, the second anti-fall-off rib 114a, and the screw 511 screwed into the second screw hole 126a, the second equipment case 16 can be securely fixed to a predetermined position on the back surface of the antenna case 5 of the fifth embodiment without any rattling. The same applies to the case where the first device case 15 is fixed to the back surface of the antenna case 5 of the fifth embodiment. In this case, since the size of the first device case 15 is small, the foot 213a of the first device case 15 climbs over the first fall-off prevention rib 113a and the side edge of the foot 213a abuts against the abutment surface that rises at a substantially right angle. The foot 213a of the first device case 15 is aligned with the first screw hole 125a. Then, a screw is inserted into the screw hole formed at the tip of the foot 213a and screwed into the first screw hole 125a. As a result, the first device case 15 is reliably fixed to a predetermined position on the back surface of the antenna case 5 of the fifth embodiment without rattling due to the action of the first mounting claw 111a, the first fall-off prevention rib 113a, and the screw screwed into the first screw hole 125a.

[0050] <Securement of the third device case> In the above description, the first device case 15 incorporating an amplifier or the second device case 16 incorporating an amplifier and a mixer is fixed to the back surface of the antenna case of the embodiment of the present invention. In the antenna case of the embodiment of the present invention, the third device case 17 incorporating a mixer can be fixed to the back surface. A perspective view of the back surface side showing the configuration of the third device case 17 is shown in FIG. As shown in FIG. 25, the third device case 17 is composed of a main body 710 and a lid 711 that covers the front and both side surfaces of the main body 710. The lid 711 has a substantially U-shaped cross section, and portions extending from the upper portions of both side surfaces to the rear side are pivotally supported on the upper portions of the respective side surfaces of the main body 710, so that the lid 711 can be opened and closed relative to the main body 710. When the lid 711 is rotated relative to the main body 710 to close it, the lid 711 engages with the main body 710 to maintain the closed state. On the rear surface of the main body 710, an attachment portion 712 for fixing the third device case 17 to an attachment target is formed protruding rearward from the center, and a pair of feet 713a, 713b are formed protruding rearward from both the left and right sides of the lower portion of the rear surface of the main body 710. An upper portion of mounting portion 712 is formed integrally with main body portion 710, and a planar portion is formed from this upper portion downward and substantially parallel to main body portion 710 at a predetermined height from the surface of main body portion 710. In addition, two circular projection holes are formed on the lower surface of main body portion 710, through which coaxial terminals provided on a built-in mixer can project.

[0051] FIG. 23 shows a rear view of the third device case 17 configured as above secured to the rear surface of the antenna case 5 of the fifth embodiment, and FIG. 24 shows a perspective view of the rear surface side. A pair of screw holes 112a, 112b are formed on the rear surface of the antenna case 5 of the fifth embodiment slightly above the first mounting claw 111a and the second mounting claw 111b, as shown in Fig. 16 and Fig. 17. The positions of the pair of screw holes 112a, 112b correspond to the positions of the pair of feet 713a, 713b of the third device case 17, and as shown in Fig. 16 and Fig. 17, when the third device case 17 is grasped and aligned with the pair of screw holes 112a, 112b formed on the rear surface of the antenna case 5, the positions of the screw holes formed at the tips of the pair of feet 713a, 713b and the pair of screw holes 112a, 112b are aligned. Then, screws are inserted into the screw holes formed at the tips of the pair of feet 713a, 713b and screwed into the pair of screw holes 112a, 112b, respectively. This allows the third device case 17 to be reliably fixed to the rear surface of the antenna case 5 of the fifth embodiment by the action of the screws screwed into the pair of screw holes 112a, 112b. In addition, since a pair of screw holes 112a, 112b are formed in the antenna case 1 of the first embodiment to the antenna case 4 of the fourth embodiment, the third device case 17 can be fixed in the same manner as described above. [Industrial Applicability]

[0052] In the antenna case according to the embodiment of the present invention described above, the equipment case can be moved laterally for installation and removal, making it possible to attach and remove the equipment case regardless of what is above or below the antenna case. In the above description, the second attachment claw 111b is not used to attach the device case to the back surface of the antenna case of the embodiment of the present invention, but the device case can be attached to the back surface of the antenna case of the embodiment of the present invention by using the second attachment claw 111b. In this case, the first device case 15 can be attached to the back surface of the antenna case of the embodiment of the present invention by using any one of the combination of the second attachment claw 111b and the first fall-off prevention rib 113b, the combination of the second attachment claw 111b and the first screw hole 125b, and the combination of the second attachment claw 111b, the first fall-off prevention rib 113b, and the first screw hole 125b. In addition, the second device case 16 can be fixed to the back of the antenna case of the embodiment of the present invention using any of the combinations of the second mounting claw 111b and the second anti-fall-off rib 114b, the combination of the second mounting claw 111b and the second screw hole 126b, and the combination of the second mounting claw 111b, the second anti-fall-off rib 114b, and the second screw hole 126b. When the first mounting claw 111a is used, a sufficient space is secured between the one side of the antenna case where the first mounting claw 111a is formed and the mounting body, for example, a wall surface, and the device case is fixed to the one side where the first mounting claw 111a is formed. When the second mounting claw 111b is used, a sufficient space is secured between the other side of the antenna case where the second mounting claw 111b is formed and the mounting body, for example, a wall surface, and the device case is fixed to the other side where the first mounting claw 111a is formed. By securing a sufficient space, the level of the amplifier built into the device case can also be easily adjusted when adjusting the direction of the antenna case. The planar antenna housed in the antenna case according to the embodiment of the present invention described above is not limited to a planar antenna capable of receiving digital terrestrial television broadcasts, but may be a planar antenna that receives other frequencies. The equipment that handles the received signal and is built into the equipment case that is fixed to the back surface of the antenna case in the embodiment of the present invention described above is not limited to an amplifier, an amplifier and mixer, or a mixer, but may also be other equipment that handles the received signal, such as a level adjuster or a distributor. [Explanation of symbols]

[0053] 1 antenna case, 2 antenna case, 3 antenna case, 4 antenna case, 5 antenna case, 10 front case, 11 rear case, 12 power supply section, 13 antenna mounting section, 15 first device case, 16 second device case, 17 third device case, 21 rear case, 31 rear case, 41 rear case, 51 rear case, 111a first mounting claw, 111b second mounting claw, 112a, 112b screw hole, 113a, 113b first fall prevention rib, 114a, 114b second fall prevention rib, 125a, 125b first screw hole, 126a, 126b second screw hole, 210 main body section, 211 lid section, 212 mounting section, 213a, 213b foot section, 214 insertion hole, 230 main body section, 231 lid section, 232a Mounting portion, 232b mounting portion, 233a, 233b foot portion, 234 insertion hole, 235 insertion guide portion, 311a first guide rib, 311b second guide rib, 511 screw, 710 main body portion, 711 cover portion, 712 mounting portion, 713a, 713b foot portion, 1001 mounting object, 1002 support bracket, 1003 clamping plate, 1004 head bolt, 1010 booster device, 1011 leg portion, 1011h through hole, 1100 antenna device, 1120 housing, 1121 outer peripheral surface, 1122 back surface, 1130 booster device fixing portion, 1131 engagement portion, 1132 wall surface portion, 1133 wall surface portion, 1139 screw hole, 1140 protruding portion, 1150 Terminal cover

Claims

1. An antenna case having a thin rectangular parallelepiped shape capable of housing a planar antenna, The mounting tabs on the back allow for temporary fixing of equipment that handles receiving signals. a fall-off prevention rib formed on a rear surface of the device case and capable of contacting a side edge of the device case; This antenna case is characterized in that, when the mounting claw is inserted into the insertion hole formed in the equipment case, the equipment case is temporarily fixed, the equipment case climbs over the anti-fall-out rib, and abuts against the side edge of the equipment case, thereby fixing it in position.

2. The antenna case described in claim 1, characterized in that the anti-fall-off ribs are formed in multiple positions according to the size of the equipment case, and the side edges of the equipment case abut against the anti-fall-off ribs formed according to the size of the equipment case, thereby fixing the equipment case in position to the back surface.

3. The antenna case described in claim 1, characterized in that the mounting claw to be inserted into the insertion hole formed in the equipment case has a flat portion formed in a plate shape at a predetermined distance from the rear surface, and the tip of the flat portion is gradually tapered.

4. 4. The antenna case according to claim 1, wherein the pair of the mounting claw and the anti-drop-off rib is formed at symmetrical positions on the left and right sides of the rear surface.

5. The antenna case described in claim 4, characterized in that the equipment case can be fixed to one side of the rear surface by using a set of the mounting claw and the anti-fall-off rib formed on one side of the rear surface, and the equipment case can be fixed to the other side of the rear surface by using a set of the mounting claw and the anti-fall-off rib formed on the other side of the rear surface.

6. The antenna case described in claim 4, characterized in that a guide rib is formed laterally on the back surface, and when the mounting claw is inserted into the insertion hole of the equipment case, the guide rib moves within a groove on the back surface of the equipment case, thereby restricting the position of the equipment case in the vertical direction.

7. An antenna case having a thin rectangular parallelepiped shape capable of housing a planar antenna, The mounting tabs on the back allow for temporary fixing of equipment that handles receiving signals. a screw hole formed on a rear surface into which a screw for fixing the device case in position can be screwed; This antenna case is characterized in that, when the mounting claw is inserted into the insertion hole formed in the equipment case, the equipment case is temporarily fixed, the equipment case is aligned with the screw hole, and the screw of the equipment case is screwed into the screw hole to fix the position.

8. The antenna case described in claim 7, characterized in that the screw holes are formed in a plurality of positions according to the size of the equipment case, and the equipment case is aligned with the screw holes formed according to the size of the equipment case, and the screws are screwed into the screw holes to fix the equipment case in position on the rear surface.

9. The antenna case according to claim 7, characterized in that the mounting claw to be inserted into the insertion hole formed in the equipment case has a flat portion formed in a plate shape at a predetermined distance from the back surface, and the tip is gradually tapered.

10. 10. The antenna case according to claim 7, wherein the sets of mounting tabs and screw holes are formed at symmetrical positions on the left and right sides of the rear surface.

11. The antenna case described in claim 10, characterized in that the equipment case can be fixed to one side of the rear surface by using a set of the mounting claw and the screw hole formed on one side of the rear surface, and the equipment case can be fixed to the other side of the rear surface by using a set of the mounting claw and the screw hole formed on the other side of the rear surface.

12. The antenna case described in claim 10, characterized in that a guide rib is formed laterally on the back surface, and when the mounting claw is inserted into the insertion hole of the equipment case, the guide rib moves within a groove on the back surface of the equipment case, thereby restricting the position of the equipment case vertically.

13. An antenna case having a thin rectangular parallelepiped shape capable of housing a planar antenna, The mounting tabs on the back allow for temporary fixing of equipment that handles receiving signals. a fall-off prevention rib formed on a rear surface of the device case and capable of contacting a side edge of the device case; a screw hole formed on a rear surface into which a screw for fixing the device case in position can be screwed; This antenna case is characterized in that, when the mounting claw is inserted into the insertion hole formed in the equipment case, the equipment case is temporarily fixed, the equipment case climbs over the anti-fall-out rib and abuts against the side edge of the equipment case to fix its position, and the equipment case is aligned with the screw hole and the screw of the equipment case is screwed into the screw hole to fix its position.

14. The anti-fall-out ribs and the screw holes are each formed in a plurality of positions according to the size of the device case, The antenna case described in claim 13, characterized in that the side edges of the equipment case abut against the anti-fall-out ribs, which are formed according to the size of the equipment case, to fix the equipment case in position on the rear surface, and the equipment case is aligned with the screw holes, which are formed according to the size of the equipment case, and the screws are screwed into the screw holes to fix the equipment case in position on the rear surface.

15. The antenna case according to claim 13, characterized in that the mounting claw to be inserted into the insertion hole formed in the equipment case has a flat portion formed in a plate shape at a predetermined distance from the back surface, and the tip is gradually tapered.

16. 16. The antenna case according to claim 13, wherein the sets of the mounting claws, the anti-fall-off ribs and the screw holes are formed at symmetrical positions on the left and right sides of the rear surface.

17. The antenna case described in claim 16, characterized in that the equipment case can be fixed to one side of the rear surface by using a set of the mounting claw, the anti-fall-off rib, and the screw hole formed on one side of the rear surface, and the equipment case can be fixed to the other side of the rear surface by using a set of the mounting claw, the anti-fall-off rib, and the screw hole formed on the other side of the rear surface.

18. The antenna case described in claim 16, characterized in that a guide rib is formed laterally on the back surface, and when the mounting claw is inserted into the insertion hole of the equipment case, the guide rib moves within a groove on the back surface of the equipment case, thereby restricting the position of the equipment case vertically.

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