JP2006115332A - Mechanism for attaching/removing case for electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mechanism for attaching/removing a case for an electronic apparatus in which a power source can be taken out from a case body by one hand with ease so that workability is improved. <P>SOLUTION: An amplifier and the power source 35 are provided inside the case body 31 at a forward end and a rear end, respectively, which are adjacent to each other. An elastic movable hook 47 is provided at one end of the power source 35, and a fastening nail 48 for engaging with the movable hook 47 is formed at the inner side of the case body 31. A fixing nail 51 is projectingly formed on the other end of the power source 35, and a fastening portion 52 for engaging with the fixing nail 51 is formed at the inner side of the case body 31. In other word, when the power source 35 is housed in the case body 31, the movable hook 47 is fastened to the fastening nail 48 on the case body 31, and the fixing nail 51 is fastened to the fastening portion 52 of the case body 31. When the power source 35 is taken out from the case body 31, the movable hook 47 is pressed in an inner direction to release locking with the fastening nail 48. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a case attachment / detachment structure for an electronic device in a power source separable amplification device or the like.

  Conventionally, in a CATV system, when the level of a TV signal transmitted from a head-end device to a system subscriber's home via a CATV network is low, an amplification device is installed at the system subscriber's home to amplify the TV signal and receive the TV image. Supply to the machine. As the amplifying apparatus for amplifying the TV signal transmitted via the CATV network as described above, a configuration in which the power supply unit in the amplifying apparatus is separable has been conventionally considered (see, for example, Patent Document 1). ). The amplifying apparatus is generally installed on the outer wall of a house, etc., but when a commercial AC power outlet is provided near the installation, it is used with a power supply built in the amplifying apparatus. If there is no commercial AC power outlet nearby, the power supply unit is separated from the amplifier and installed in the house, and the power supply unit is connected using a coaxial cable that connects the amplifier and the TV receiver. To supply power to the amplifier.

  FIGS. 5 to 7 show the configuration of the conventional power source separation type amplifier. FIG. 5 is a perspective view showing a state where the lid is opened, and FIG. 6 is a plan view showing the lid portion omitted. 7 is a perspective view showing the power supply unit taken out.

  In FIGS. 5 and 6, reference numeral 11 denotes a case body, and a lid 12 is rotatably provided by a hinge 13 so as to cover an upper surface opening. In the case body 11, an amplifying unit 14 is provided on the front end side, and a power supply unit 15 is provided on the rear end side with a predetermined interval. The power supply unit 15 is detachably provided as will be described in detail later.

  The amplifying unit 14 is provided with a downstream input / upstream output terminal 16 and a downstream output / upstream input terminal 17 on the front surface. The downstream input / upstream output terminal 16 and the downstream output / upstream input terminal 17 are fixedly provided in a mounting hole provided in the front surface portion of the case body 11. The downlink input / uplink output terminal 16 is connected to the CATV network via a coaxial cable (not shown), and the downlink output / uplink input terminal 17 is installed in the house via a coaxial cable (not shown). Connected to a TV receiver.

  Further, the power supply unit 15 has a case made of synthetic resin, and has movable hooks 18a and 18b having elasticity on both the left and right sides as shown in detail in FIG. On the other hand, as shown in FIG. 5, the case main body 11 is provided with a notch at a portion corresponding to the movable hooks 18a and 18b, and a locking claw 19 is formed at the upper end of the notched portion. And when the power supply part 15 is accommodated in the case main body 11, the said movable hooks 18a and 18b fit with the latching claw 19 by the side of the case main body 11, and the power supply part 15 is fixed. Then, when the movable hooks 18a and 18b are pushed inwardly from both sides by hand, the hooks 19a and 18b are detached from the locking claws 19, so that the power supply unit 15 can be taken out from the case body 11.

  Further, a downstream input / upstream output terminal 21 and a downstream output / upstream input terminal 22 are provided on the front end face of the power supply unit 15. The downstream input / upstream output terminal 21 and downstream output / upstream input terminal 22 are located in a space provided between the amplifying unit 14 and the power supply unit 15 as shown in FIG. The downlink input / uplink output terminal 21 and the downlink output / uplink input terminal 22 are coaxial with the downlink output / uplink input terminal 17 of the amplifying unit 14 and the TV receiver when the power supply unit 15 is taken out from the case body 11 and used. Connected via cable.

Further, a power cord 23 is led out from the front end side of the power supply unit 15. The power supply unit 15 converts the commercial AC power supplied via the power cord 23 into a DC voltage of 15V and supplies it to the amplifier 14 as an operating power supply.
Japanese Patent No. 3239105

  In the conventional power source separation type amplifying apparatus, the movable hooks 18a and 18b are provided on the left and right sides of the power supply unit 15, and the movable hooks 18a and 18b are provided on the case body 11 when the power supply unit 15 is housed in the case body 11. The locking claw 19 is fitted and fixed.

  For this reason, when removing the power supply part 15 from the case main body 11, it is necessary to push the movable hooks 18a and 18b inward from both sides, it must work with both hands, and cannot be removed with one hand. Further, since the movable hooks 18a and 18b are given an elastic force, if the movable hooks 18a and 18b are not pressed from both sides with a uniform force, the movable hooks 18a or 18b on one side are caught by the locking claws 19. The power supply unit 15 is difficult to remove. That is, there is a problem that the balance of the force for pressing the movable hooks 18a, 18b from both sides is bad, or that the power source 15 cannot be removed from the case body 11 if it is pressed from one side, and the workability is very poor. .

  The present invention has been made to solve the above-described problems, and provides a case attachment / detachment structure for an electronic device that can easily remove the power supply unit from the case main body by one-hand operation and can improve workability. Objective.

  The present invention corresponds to a case main body of an electronic device, a power supply unit housed in the case main body, a movable hook that can be operated externally provided on one side of the power supply unit, and the case main body corresponding to the movable hook. A locking claw for locking the movable hook, a fixed claw provided on the other side of the power supply unit, and a case main body corresponding to the fixed claw. And a latching portion for latching, wherein the power supply unit can be taken out from the case body by releasing the coupling with the latching claw by an external operation of the movable hook.

  According to the present invention, it is possible to easily take out the power supply unit from the case body simply by operating the movable hook provided in the power supply unit with one hand, and workability can be improved. When the power supply unit is housed in the case body, it can be easily attached to the case body from either the movable hook side or the fixed claw side.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 to FIG. 4 show a configuration example in the case where the case attachment / detachment structure for an electronic device according to an embodiment of the present invention is implemented in a power supply separation type amplifying device, and FIG. 1 shows a state in which a lid is opened. 2 is a side view, FIG. 3 is a cross-sectional view showing a fixing portion of the power supply unit, and FIG. 4 is a cross-sectional view showing a state where the power supply unit is attached to and detached from the case body. In FIG. 2, the power cord portion is omitted.

  In FIGS. 1 and 2, reference numeral 31 denotes a case body made of, for example, a synthetic resin, and a lid 32 is rotatably provided by a hinge 33 so as to cover the upper surface opening. The case body 31 is used by being vertically attached to an outer wall surface of a house, for example.

  An elastic hook 26 is provided on the upper front side of the case body 31, and an opening / closing knob 27 is provided at a position corresponding to the hook 26 at the front end of the lid 32. The opening / closing knob 27 is provided with a locking hole (not shown) corresponding to the hook 26, and when the lid 32 is closed, the hook 26 is inserted into the locking hole of the opening / closing knob 27 so that the lid is closed. 32 is locked. When the lid 32 is closed, the upper end of the hook 26 protrudes upward from the locking hole. When the upper end of the hook 26 is pushed toward the front end (front side) of the lid 32, the lock is released and the lid 32 is moved upward. It can be rotated and opened.

In the case main body 31, an amplifying unit 34 is provided on the front end side, and a power supply unit 35 is provided on the rear end side in proximity. The power supply unit 35 is detachably provided as will be described in detail later.
The amplifying unit 34 is provided with a downlink input / uplink output terminal 36, a downlink output / uplink input terminal 37, and a downlink output / uplink input monitor terminal 38 on the front surface. The downlink input / uplink output terminal 36, the downlink output / uplink input terminal 37, and the downlink output / uplink input monitor terminal 38 are fixed to a mounting hole provided on the front surface of the case body 31. The downlink input / uplink output terminal 36 is connected to a CATV network via a coaxial cable (not shown), and the downlink output / uplink input terminal 37 is a TV receiver in a house via a coaxial cable (not shown). Connected to. Further, a pilot lamp 39 is provided on the upper surface of the amplifying unit 34, and a ground terminal 40 is provided, for example, at the right corner.

  The power supply unit 35 has a case made of, for example, synthetic resin. As shown in detail in FIG. 3, a movable hook 47 having elasticity is provided on one of the left and right sides, for example, the center of the left side. It is done. The movable hook 47 forms a lock portion at the upper end portion of the locking piece 46 having elasticity. The locking piece 46 is formed in a tapered shape so that the surface facing the case body 31 is tapered, that is, gradually protrudes from the lower part toward the upper part. On the other hand, a locking claw 48 is formed inside the case main body 31 at a portion corresponding to the movable hook 47. When the power supply unit 35 is stored in the case main body 31, the movable hook 47 is located on the case main body 31 side. The locking claw 48 is coupled and fixed.

  The power source 35 is formed with a fixing claw 51 projecting substantially at the center on the side of the case opposite to the movable hook 47. The fixed claw 51 has an upper portion formed flat and a side surface formed in a taper shape, that is, tapered so as to gradually protrude from the lower portion toward the upper portion. On the other hand, a locking portion 52 is formed inside the case body 31 so as to correspond to the fixed claw 51 and to be positioned above the fixed claw 51. The locking portion 52 has a lower portion formed flat and a side surface tapered, that is, tapered so as to gradually protrude from the upper portion toward the lower portion. The positional relationship between the locking portion 52 and the fixed claw 51 is set so that the lower end surface comes into contact with the upper end surface of the fixed claw 51 when the power supply unit 35 is housed in the case body 31.

  That is, when the power supply unit 35 is housed in the case body 31, the upper end surface of the fixed claw 51 is brought into contact with and locked to the lower end surface of the locking portion 52 formed on the case body 31, and the movable hook 47 is The case main body 31 is configured to be coupled and fixed to the locking claw 48.

  When the power supply unit 35 is taken out from the case body 31, when the movable hook 47 is pushed inward to release the coupling with the locking claw 48, one of the power supply units 35, that is, the movable hook 47 side is provided as shown in FIG. It can be taken out by lifting the side that is being lifted upward. In this case, since the fixed claw 51 and the fixed claw 51 of the case body 31 are merely in contact with each other, when the movable hook 47 side of the power supply unit 35 is lifted upward, the fixed claw 51 and the locking portion 52 is disengaged and the power supply unit 35 can be taken out.

  Further, as shown in FIGS. 1 and 2, a downstream input / upstream output terminal 41 and a downstream output / upstream input terminal 42 are provided on the front end face of the power supply unit 35, as shown in FIGS. 1 and 2. The downstream input / upstream output terminal 41 and the downstream output / upstream input terminal 42 are located above the rear part of the amplifying unit 14. That is, the amplification unit 34 is formed thinner than the thickness of the power supply unit 35, and the downstream input / upstream output terminal 41 and the downstream output / upstream input terminal 42 are positioned above the rear part of the amplification unit 14.

  The downlink input / uplink output terminal 41 and the downlink output / uplink input terminal 42 are connected to the downlink output / uplink input terminal 37 of the amplifier 34 and the TV receiver when the power supply unit 35 is used separately from the case body 11. Connected between. That is, the downstream output / upstream input terminal 42 of the power supply unit 35 is connected to the TV receiver via a coaxial cable, and the downstream input / upstream output terminal 41 is connected to the downstream output / upstream input terminal 37 of the amplifier unit 34 via a coaxial cable. use.

  Further, the power supply unit 35 is provided with a pilot lamp 45 on the upper side surface, and a power cord 43 is led out from the front end side. When the power supply unit 35 is housed in the case body 31, the power cord 43 is led out from the front surface of the case body 31 through the waterproof chamber 44 formed in the case body 31.

  The power supply unit 15 converts, for example, a 100V commercial AC power supply into a 15V DC voltage, and supplies it to the amplifier unit 34 as an operating power supply. When a DC voltage is supplied to the amplifying unit 34 via a plug and is taken out from the case body 31, the downstream output / upstream input terminal 42 is connected to the downstream output / upstream input terminal 37 of the amplification unit 34 via a coaxial cable. Supply DC voltage.

  As shown in the above embodiment, the power supply unit 35 is provided with a movable hook 47 having elasticity on one side to be coupled to the locking claw 48 of the case body 31 and fixed to the other side. Since the claw 51 is provided so as to be locked to the locking portion 52 of the case body 31, when the power source 35 is taken out from the case body 31, the movable hook 47 is pushed inward to By simply releasing the connection, the power supply unit 35 can be lifted upward and taken out as shown in FIG. In this case, since the upper surface of the fixed claw 51 is merely in contact with and locked to the lower surface of the fixed claw 51 of the case body 31, when the movable hook 47 side of the power supply unit 35 is lifted upward, The engagement with the locking portion 52 is released, and the power supply portion 35 can be taken out.

  Therefore, the power supply unit 35 can be easily taken out from the case main body 31 only by operating the movable hook 47 with one hand, and workability can be improved.

  Further, when the power supply unit 35 is housed in the case main body 31, the power supply unit 35 can be mounted simply by placing the power supply unit 35 at a predetermined position on the case main body 31 and pressing it from above. In this case, the power supply unit 35 may lock the movable hook 47 first with the locking claw 48 or may lock the fixed claw 51 with the fixed claw 51 first. That is, the movable hook 47 has elasticity, and the surface of the case main body 31 that faces the locking claw 48 is formed in a taper shape, so that the movable hook 47 can be engaged only by pushing the power supply unit 35 from above. It can be coupled to the pawl 48.

  In addition, since the fixing claw 51 provided on the other side of the power supply unit 35 and the locking part 52 provided on the case body 31 are also formed with a tapered side surface, after the movable hook 47 side is first attached, Even if the fixed claw 51 side of the portion 35 is pressed from above, the tapered portion of the fixed claw 51 smoothly moves downward while contacting the tapered portion of the locking portion 52, and the fixed claw 51 is locked to the locking portion 52. The In this case, since the movable hook 47 has elasticity, it can be easily moved while the tapered portion of the fixed claw 51 is in contact with the tapered portion of the locking portion 52.

  Further, as shown in FIG. 4, the fixed claw 51 side of the power supply unit 35 is first inserted into the case body 31 and locked to the locking portion 52, and then the movable hook 47 is locked to the locking claw 48. It is also possible to do.

  In the above-described embodiment, the downstream input / upstream output terminal 41 and the downstream output / upstream input terminal 42 of the power supply unit 35 are offset from the front end surface. In this case, the downstream input / upstream output terminal 41 and the downstream output / upstream input terminal 42 can be positioned at the upper rear end of the amplifying unit 34. For this reason, it is not necessary to provide a space for positioning the downstream input / upstream output terminal 41 and the downstream output / upstream input terminal 42 between the amplification section 34 and the power supply section 35. Can be placed close together. As a result, it is possible to reduce the size of the amplifying device or increase the installation area of the amplifying unit 34 to achieve multiple functions.

  In the above embodiment, the case where the movable hook 47 is provided at the center of the side portion of the power supply unit 35 has been described. However, the movable hook 47 may be provided so as to be deviated laterally from the center.

Further, in the above-described embodiment, the case where the present invention is applied to the power source separation type amplifying apparatus has been described. However, in other electronic devices such as an optical / electrical conversion apparatus and an electric / optical conversion apparatus used in a system using an optical cable, for example. Even in the case of the power source separation type, it can be carried out in the same manner as in the above embodiment.
Further, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying constituent elements without departing from the scope of the invention in the implementation stage.

It is a top view which shows the state which opened the lid | cover at the time of implementing the case attachment / detachment structure of the electronic device which concerns on one Embodiment of this invention to a power supply isolation | separation type | mold amplification apparatus. It is a side view in the same embodiment. It is sectional drawing which shows the fixing | fixed part of the power supply part in the embodiment. In the same embodiment, it is sectional drawing which shows the state in the case of attaching / detaching a power supply part with respect to a case main body. It is a perspective view which shows the state which opened the cover of the conventional power supply isolation | separation type amplifier. It is a top view which abbreviate | omits and shows the cover part of the conventional power supply isolation | separation type amplifier. It is a perspective view which takes out and shows the power supply part of the conventional power supply isolation | separation type | mold amplification apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 31 ... Case main body, 32 ... Cover, 33 ... Hinge, 34 ... Amplifying part, 35 ... Power supply part, 36 ... Downlink input / uplink output terminal, 37 ... Downlink output / uplink input terminal, 38 ... Downlink output / uplink input monitor terminal 39 ... Pilot lamp, 40 ... Ground terminal, 41 ... Down input / up output terminal, 42 ... Down output / up input terminal, 43 ... Power cord, 44 ... Waterproof room, 45 ... Pilot lamp, 46 ... Locking piece, 47 ... movable hook, 48 ... locking claw, 51 ... fixed claw, 52 ... locking portion.

Claims (1)

  A case main body of an electronic device, a power supply unit housed in the case main body, a movable hook that can be externally operated provided on one side of the power supply unit, and a case main body provided corresponding to the movable hook. A locking claw for locking the movable hook, a fixed claw provided on the other side of the power supply unit, and a lock provided on the case body corresponding to the fixed claw and locking the fixed claw. A structure for attaching and detaching a case of an electronic device, comprising: a stop portion, wherein the power supply portion can be removed from the case body by releasing the coupling with the locking claw by an external operation of the movable hook.

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