JP2009093703A - Opening and closing shaft supporting device, and electric equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording and reproducing device in which design can be improved. <P>SOLUTION: An opening and closing shaft supporting device supporting a shaft of a door part 140 freely opening and closing for a front panel part 130 is constituted of an aperture part 151 opened over two planes of a panel upper side front part 132A and a panel intermediate lower plane part 132B, a door hinge part having a door hinge shaft part and a door hinge bearing part, a door gear part 153 having a door gear shaft part 153B and a door gear bearing part 153C, an oil gear 153D, and a gear 153A. Blockade plane parts 153A12 positioned almost on the same plane as a plane of the panel upper side front plane part 132A when the door part 140 is opened are provided at the door hinge part and the door gear part 153. The door hinge shaft part, the door hinge bearing part, door gear shaft part 153B, and the door gear bearing part 153C are provided attachably and detachably from a lower side being parallel to a plane of the panel upper side front part 132A in a state in which the door part 140 is opened. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an opening / closing pivot support device that pivotally supports a door portion so as to be openable / closable with respect to a panel portion that is provided in a state in which one surface of a case body is substantially closed, and an electrical apparatus including the opening / closing pivot support device.

Conventionally, the structure which opens and closes the front panel part of electric equipments, such as a video tape recorder, with a door part is known (for example, refer to patent documents 1).
The thing of this patent document 1 has taken the structure which a door switch unit rotates with respect to a front panel because the spindle of a front panel engages with the hook part of a door switch unit. Further, the door switch unit is interlocked with the oil damper mechanism in order to slowly open the door switch unit.

  As in the configuration described in Patent Document 1, the oil damper mechanism is provided, and the hook portion and the support shaft are detachably provided from the direction orthogonal to the surface of the front panel when the door switch unit is opened. Then, it can be considered that the interlocking portion between the oil damper mechanism and the door switch unit is configured as shown in FIGS. 1 and 2, for example.

That is, the opening 921 and the door gear 922 corresponding to the oil damper mechanism are provided as a configuration that pivotally supports the door 900 corresponding to the door switch unit so as to be openable and closable with respect to the front panel 910.
The opening 921 is provided so as to open near the lower edge of the panel front portion 911.
The door gear portion 922 is received by the door gear bearing portion 922A through the door gear bearing portion 922A provided in the door portion 900, the gear 922B provided in the door gear bearing portion 922A, and the opening 921 provided in the panel front portion 911. Door gear shaft portion 922C and an oil gear 922D provided on the panel front portion 911 and meshing with the gear 922B.

The door gear bearing portion 922 </ b> A is formed in a shape that extends in a substantially U-shaped plate shape from the lower portion of the door portion 900 toward the back side and opens toward the lower side of the door portion 900. That is, the door gear portion 922 has a configuration in which the door gear bearing portion 922A and the door gear shaft portion 922C are detachable from the front side substantially orthogonal to the surface of the panel front portion 911 in a state where the door portion 900 is opened. .
The gear 922 </ b> B includes a plurality of gear teeth 922 </ b> B <b> 1 arranged side by side in an arc shape having a central angle of 90 ° or more from the upper side to the lower side in the extending direction of the door gear bearing portion 922 </ b> A.
The oil gear 922D is fixed to the back side of the panel front portion 911 in a state where a plurality of oil gear teeth 922D1 arranged in a circle are engaged with the gear teeth 922B1. When the oil gear 922D and the gear 922B mesh with each other, the door portion 900 rotates at a slow rotation speed corresponding to the rotation resistance when the door portion 900 shifts from the closed state shown in FIG. 2 to the open state shown in FIG. It is like that.

JP-A-5-217350

  However, in the conventional configuration as described above, when the door gear bearing portion 922A and the door gear shaft portion 922C are attached and detached from the front side, the position of the gear teeth 922B1 arranged in an arc shape farthest from the door portion 900 Because the door gear bearing portion 922A is inserted into the opening portion 921 in a state where the gear teeth 922B1 (hereinafter referred to as the separation gear teeth 922B1) are passed through the vicinity of the upper edge of the opening portion 921, the upper edge of the opening portion 921 Must be located above the tip of the separation gear teeth 922B1. For this reason, when the door gear bearing portion 922A and the door gear shaft portion 922C are engaged, the gear teeth 922B1 located closer to the door portion 900 than the separating gear teeth 922B1 are located at positions facing the upper edge of the opening 921. As an example, there is a problem that the separation gear teeth 922B1 are exposed from the gap between the tip of the gear teeth 922B1 and the upper edge of the opening 921, and the design may be lowered.

  In view of such a point, an object of the present invention is to provide an opening / closing pivot support device capable of improving design and an electric apparatus including the opening / closing pivot support device.

  The invention according to claim 1 is an opening and closing pivotal support device that pivotally supports a door portion so that the door portion can be opened and closed with respect to a panel portion that is provided in a state in which one surface of a substantially box-shaped case body is substantially closed. Has a first surface covered by the door portion, and a second surface provided in a state where the surface direction intersects and is continuous with the first surface, from the first surface of the panel portion, A plurality of openings having an opening that extends over the second surface, a shaft provided in one of the panel portion and the door, and a bearing that is provided in the other and receives the shaft through the opening. A shaft support portion, an oil gear provided in the panel portion, and a gear provided in the door portion and meshed with the oil gear through the opening, the shaft support portion having the door portion opened. When the shape is located on the same plane as the first surface And an opening / closing pivot support device, wherein the shaft portion and the bearing portion are detachably provided from a direction parallel to the first surface in a state where the door portion is opened. It is.

  According to a sixth aspect of the present invention, there is provided a case body formed in a substantially box shape, an electronic device accommodated in the case body, a first surface, and a state in which the surface direction intersects and is continuous with the first surface. The panel part which has the provided 2nd surface, The door part provided so that opening and closing of the said 1st surface of this panel part was possible, and the said door part is pivotally supported so that opening and closing is possible with respect to the said panel part. An electrical apparatus comprising the opening / closing pivot support device according to claim 5.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 3 is a perspective view of a recording / reproducing apparatus according to an embodiment of the present invention. FIG. 4 is a cross-sectional view showing the door hinge portion in a state where the door portion is open. FIG. 5 is a cross-sectional view showing the door hinge portion in a state where the door portion is closed. FIG. 6 is a cross-sectional view showing the door gear portion in a state where the door portion is open. FIG. 7 is a cross-sectional view showing the door gear portion in a state where the door portion is closed.

[Configuration of recording / reproducing apparatus]
In FIG. 3, reference numeral 100 denotes a recording / reproducing apparatus, for example, as an electric device. The recording / reproducing apparatus 100 reproduces and further reproducibly records image data such as TV video data and imaging data, audio data, and the like.
The recording / reproducing apparatus 100 includes a case body 110 having an open front surface, an electronic device 120 accommodated in the case body 110, and a front panel as a panel portion provided in a state of substantially closing the front surface of the case body 110. Part 130, a door part 140 provided to be able to open and close the front panel part 130, and an opening / closing pivotal support device 150 for pivotally supporting the door part 140 with respect to the front panel part 130. .

130 A of door fixing magnets are provided in the upper left part and upper right part of the front panel part 130. FIG. Further, the front panel portion 130 is provided with a window portion 130B that faces a switch, a terminal, a connector, a disc tray, and the like. As shown in FIGS. 4 to 7, the front panel portion 130 is provided in series on the panel upper surface portion 131 provided in a state substantially flush with the upper surface 111 of the case body 110 and the panel upper surface portion 131. A panel front surface portion 132 that substantially closes the front surface of the case body 110, and a panel lower surface portion 133 that is provided in series with the panel front surface portion 132 and is substantially flush with the lower surface 112 of the case body 110. Yes. The panel upper surface portion 131, the panel front surface portion 132, and the panel lower surface portion 133 are integrally formed of, for example, ABS resin.
As shown in FIGS. 4 to 7, the panel front portion 132 is provided in series on the panel upper front portion 132A, which is the front as the substantially plate-shaped first surface, and the lower edge of the panel upper front portion 132A. A panel middle lower surface 132B, which is a lower surface as a second surface extending toward the side (inner side of the case body 110), and a panel upper front surface 132A provided in series at the leading edge of the panel middle lower surface 132B. A substantially parallel panel lower front portion 132C.

  The door part 140 is formed in the rectangular plate shape which can cover the panel upper side front part 132A with an acrylic resin, for example. In addition, a door fixing iron 140A attracted by the door fixing magnet 130A is provided on the upper left and upper right of the back side of the door 140.

  As shown in FIG. 3, the opening / closing pivot support device 150 corresponds to the four openings 151 arranged in the left-right direction in the front panel section 130 and the first, third, and fourth openings 151 from the left. Three door hinge portions 152 as shaft support portions respectively provided at positions to be provided, and one door gear portion 153 as a shaft support portion provided at a position corresponding to the second opening portion 151 from the left. Yes.

  As shown in FIGS. 4 to 7, the opening 151 is provided so as to open over two surfaces of the panel upper front portion 132 </ b> A and the panel middle lower surface portion 132 </ b> B. At the opening edge of the opening 151 on the panel upper side front portion 132A side, an extending portion 151A extending toward the panel intermediate lower surface portion 132B is provided. The extending portion 151A has a thickness dimension that decreases toward the distal end in the extending direction, and is formed in a shape with a sharp distal end.

  As shown in FIGS. 4 and 5, the door hinge portion 152 includes a door hinge shaft portion 152 </ b> A provided on the panel upper front portion 132 </ b> A, and a door hinge bearing provided on the door portion 140 and receiving the door hinge shaft portion 152 </ b> A via the opening 151. Part 152B.

  The door hinge shaft portion 152A is provided in a state where it faces the opening 151 at the lower portion on the back side of the panel upper front portion 132A and the axial direction coincides with the left-right direction. The door hinge shaft portion 152A is formed in a substantially round bar shape by a pair of opposed flat side surface portions and a pair of opposed arc side surface portions.

The door hinge bearing portion 152 </ b> B is formed in a substantially U-shaped plate shape and is provided at the lower portion of the door portion 140. The door hinge bearing portion 152B is provided in a state of opening toward the back side of the door portion 140. That is, as shown in FIG. 4, the door hinge portion 152 can be attached and detached from the lower side parallel to the surface of the panel upper front portion 132A with the door hinge shaft portion 152A and the door hinge bearing portion 152B in a state where the door portion 140 is opened. It has a configuration.
Moreover, the recessed part 152B1 formed in the recessed shape corresponding to the extension part 151A is provided in the connection part with the door part 140 in the door hinge bearing part 152B. That is, as shown in FIG. 5, the recess 152 </ b> B <b> 1 is formed in a shape that enters the extension portion 151 </ b> A when the front panel portion 130 is covered with the door portion 140.
Further, the door hinge bearing portion 152B is provided with a closing surface portion 152B2 that is continuous with the recess portion 152B1. As shown in FIG. 4, the closing surface portion 152 </ b> B <b> 2 is formed in a shape that is located substantially on the same plane as the surface of the panel upper front portion 132 </ b> A when the front panel portion 130 is opened by the door portion 140.

  6 and 7, the door gear portion 153 includes a gear 153A provided in the door portion 140, a door gear shaft portion 153B provided in the gear 153A, and an opening portion 151 provided in the panel upper front portion 132A. A door gear bearing portion 153C that receives the door gear shaft portion 153B, and an oil gear 153D that is provided on the panel upper front portion 132A and meshes with the gear 153A.

The gear 153A includes a gear base 153A1 extending in a substantially square plate shape from the lower part of the door part 140 toward the back side, and from the front end side in the extending direction of the gear base part 153A1 to the side surface side of the lower part of the door part 140. , And a plurality of gear teeth 153A2 arranged in a circular arc shape having a central angle of 90 ° or more.
Further, the connecting portion of the gear base portion 153A1 with the door portion 140 is formed in a shape substantially equal to the concave portion 152B1 of the door hinge portion 152, and when the front panel portion 130 is covered with the door portion 140 as shown in FIG. A recess 153A11 that enters the extension 151A is provided.
Further, the gear base portion 153A1 is formed in a shape substantially equal to the closing surface portion 152B2 of the door hinge portion 152, and when the front panel portion 130 is opened by the door portion 140 as shown in FIG. A closing surface portion 153A12 is provided that is positioned substantially on the same surface as the first surface.

  The door gear shaft portion 153B is provided in a state of protruding from substantially the center on one surface of the gear base portion 153A1. The door gear shaft portion 153B is formed in a substantially round bar shape by a pair of opposed flat side surface portions and a pair of opposed arc side surface portions.

  The door gear bearing portion 153C is formed in a substantially U-shaped plate shape, and is fixed to the lower portion on the back side of the panel upper front portion 132A. Further, the door gear bearing portion 153C is provided in a state facing the opening 151 and in a state opening toward the lower side of the panel upper front portion 132A. That is, as shown in FIG. 6, the door gear shaft 153B and the door gear bearing portion 153C can be attached and detached from the lower side parallel to the surface of the panel upper front portion 132A with the door portion 140 opened as shown in FIG. It has a configuration.

  The oil gear 153D is fixed to the lower part on the back side of the panel upper front part 132A in a state where a plurality of oil gear teeth 153D1 arranged in a circle mesh with the gear teeth 153A2 of the gear 153A. The oil gear 153D has a predetermined rotational resistance due to oil viscosity. The meshing of the oil gear 153D and the gear 153A causes the door portion 140 to rotate at a slow rotation speed corresponding to the rotational resistance when the door portion 140 shifts from the closed state shown in FIG. 7 to the open state shown in FIG. It is like that.

[Operation of recording / reproducing apparatus]
Next, as an operation of the recording / reproducing apparatus 100 described above, an operation by providing the door gear shaft portion 153B in the gear 153A and providing the door gear bearing portion 153C in the panel upper front portion 132A will be described with reference to the drawings.
FIG. 8 is a cross-sectional view showing the door gear portion of Comparative Example 1 in a state where the door portion is open. FIG. 9 is a cross-sectional view showing the door gear portion of Comparative Example 1 in a state where the door portion is closed. FIG. 10 is a cross-sectional view showing the door gear portion of Comparative Example 2 in a state where the door portion is opened. FIG. 11 is a cross-sectional view showing the door gear portion of Comparative Example 2 in a state where the door portion is closed.
In addition, about the structure same as the said embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

[Configuration of Comparative Example 1]
As shown in FIGS. 8 and 9, the door gear portion 200 of Comparative Example 1 is not shown and is received by the door gear bearing portion 200 </ b> A provided on the door portion 140 and the door gear bearing portion 200 </ b> A provided on the panel upper front portion not shown. It includes a door gear shaft portion, a gear 200C provided on the door gear bearing portion 200A, and an oil gear 153D provided on the panel upper front portion.
200 A of door gear bearing parts are formed in the shape opened toward the lower side of the door part 140 while it extends in the substantially U-shaped plate shape toward the back side of the door part 140. As shown in FIG. That is, the door gear part 200 has a configuration in which the door gear bearing part 200A and the door gear shaft part are detachable from the front side in a state where the door part 140 is opened. Further, the gear teeth 200C1 of the gear 200C are arranged side by side in an arc shape having a smaller central angle than the above embodiment from the front end side of the door gear bearing portion 200A to the lower side surface side of the door portion 140, the number of which is also the gear teeth. It is less than 153A2. This is because the gear teeth 200C9 as shown by the imaginary line (two-dot chain line) cannot be provided because the door gear bearing portion 200A opens toward the lower side of the door portion 140.

[Configuration of Comparative Example 2]
As shown in FIGS. 10 and 11, the door gear part 210 of the comparative example 2 has a configuration different from the door gear part 200 of the comparative example 1 only in the door gear bearing part 210 </ b> A and the gear 210 </ b> C.
The door gear bearing portion 210 </ b> A extends in a substantially U-shaped plate shape toward the back surface side of the door portion 140 and is formed in a shape that opens toward the back surface side of the door portion 140. With the door opened, the door gear bearing portion 210A and the door gear shaft portion are configured to be detachable from the lower side. Further, the gear teeth 210C1 of the gear 210C are intermittently arranged in parallel in an arc shape having a smaller central angle than the above embodiment from the front end side of the door gear bearing portion 210A to the side surface side on the lower side of the door portion 140. Is less than the gear teeth 153A2. This is because the gear teeth 210C9 as indicated by the imaginary line (two-dot chain line) cannot be provided because the door gear bearing portion 210A opens toward the back side of the door portion 140.

[Comparison between Comparative Examples 1 and 2 and recording / reproducing apparatus]
In the first comparative example, the gear teeth 200C9 cannot be provided as described above, and therefore the gear teeth 200C1 sufficiently mesh with the oil gear teeth 153D1 when the door 140 is closed as shown in FIG. When the door part 140 is opened as shown in FIG. 5, the gear teeth 200C1 do not fully mesh with the oil gear teeth 153D1. Further, in Comparative Example 2, the gear teeth 210C9 cannot be provided, and therefore the gear teeth 210C1 sufficiently mesh with the oil gear teeth 153D1 when the door portion 140 is opened as shown in FIG. In such a state that the door part 140 is closed, the gear teeth 210C1 do not fully mesh with the oil gear teeth 153D1.
Therefore, in the configurations of Comparative Examples 1 and 2, there is a case where the gear teeth 200C1 and 210C1 and the oil gear teeth 153D1 are not sufficiently engaged with each other, and the door portion 140 may not rotate smoothly.
On the other hand, in the above-described embodiment, since the gear 153A is provided with the door gear shaft portion 153B, the arrangement of the gear teeth 153A2 is not limited as in the first and second comparative examples. Therefore, a sufficient number of gear teeth 153A2 can be provided, and the gear teeth are both in the opened state as shown in FIG. 6 and in the closed state as shown in FIG. 153A2 fully meshes with the oil gear teeth 153D1.
Therefore, in the structure of the said embodiment, in all the states at the time of the opening / closing of the door part 140, both can fully be meshed | engaged and the door part 140 can be rotated smoothly.

[Function and effect of recording / reproducing apparatus]
As described above, in the above embodiment, the following operational effects can be achieved.

(1) An opening / closing pivot support device 150 that pivotally supports the door portion 140 so as to be openable / closable with respect to the front panel portion 130, an opening portion 151 that opens over two surfaces of the panel upper front portion 132A and the panel middle lower surface portion 132B, and a door hinge. It comprises a door hinge portion 152 having a shaft portion 152A and a door hinge bearing portion 152B, a door gear portion 153 having a door gear shaft portion 153B and a door gear bearing portion 153C, an oil gear 153D, and a gear 153A. Further, the door hinge portion 152 and the door gear portion 153 are provided with blocking surface portions 152B2 and 153A12 that are positioned on substantially the same plane as the surface of the panel upper front portion 132A when the door portion 140 is opened. The door hinge shaft portion 152A and the door hinge bearing portion 152B, and the door gear shaft portion 153B and the door gear bearing portion 153C are detachably provided from the lower side parallel to the surface of the panel upper front portion 132A with the door portion 140 opened. ing.
For this reason, the gear tooth 153A2 (hereinafter referred to as the separation gear tooth 153A2) that is farthest from the door portion 140 among the gear teeth 153A2 arranged in an arc shape does not pass through the vicinity of the upper edge of the opening 151. Thus, the gear 153A can be inserted into the opening 151.
Accordingly, the gap between the upper edge of the opening 151 and the gear 153A can be reduced by setting the position of the upper edge of the opening 151 below the position of the tip of the separation gear teeth 153A2. It is possible to prevent the separation gear teeth 153A2 from being exposed. Further, when the door portion 140 is opened, the closing surface portions 152B2 and 153A12 that are located on substantially the same plane as the panel upper front portion 132A are provided, so that the gear teeth 153A2 are provided in this portion. The teeth 153A2 are not exposed. Therefore, the design of the recording / reproducing apparatus 100 can be improved.

(2) The opening 151 is provided over the panel upper front part 132A and the panel middle lower surface part 132B, and the panel upper front part 132A is opened and closed by the door part 140.
For this reason, it is possible to prevent the separation gear teeth 153A2 from being exposed from the panel upper front portion 132A side that is easily noticed by the user during operation or the like. Therefore, the recording / reproducing apparatus 100 can be operated without feeling uncomfortable due to the exposure of the separation gear teeth 153A2.

(3) The door hinge shaft portion 152A is provided in the front panel portion 130, and the door hinge bearing portion 152B is provided in the door portion 140.
Here, when the substantially U-shaped door hinge bearing portion 152B is provided on the front panel portion 130, it becomes difficult to integrally form because the shape is complicated, and these are formed as separate members and fixed by screwing or the like. There is a need. For this reason, there is a possibility that the number of parts increases and the assembling workability may deteriorate.
On the other hand, in the said embodiment, since the door hinge bearing part 152B is provided in the door part 140, it can form integrally, without a complicated shape. Therefore, an increase in the number of parts can be prevented, and the assembly efficiency can be increased.

(4) The door hinge bearing portion 152B and the gear 153A are provided with recesses 152B1 and 153A11, and the opening 151 is provided with an extension 151A that enters the recesses 152B1 and 153A11.
Here, in a configuration in which the closing surface portion 152B2 is provided up to the connection portion with the door portion 140 in the door hinge bearing portion 152B without providing the recess portion 152B1, the door portion 140 is closed to a position where the connection portion faces the opening portion 151. In order to move, the position of the upper edge of the opening 151 needs to be above the position of the above embodiment.
On the other hand, since the recesses 152B1 and 153A11 are provided in the above-described embodiment, even if the extension 151A is provided to lower the position of the upper edge of the opening 151, the door hinge is closed when the door 140 is closed. The bearing portion 152B and the gear 153A do not come into contact with the extending portion 151A. Therefore, by providing the extension portion 151A, the gap between the opening portion 151 when the door portion 140 is opened and the closing surface portions 152B2 and 153A12 can be reduced, and the design of the recording / reproducing apparatus 100 can be further improved. .

(5) The door gear shaft portion 153B is provided on the gear 153A, and the door gear bearing portion 153C is provided on the panel upper front portion 132A.
Here, in the case where the door gear shaft portion 153B and the door gear bearing portion 153C are not provided, when the vicinity of the door gear portion 153 is operated to open the door portion 140, the door portion 140 is moved away from the oil gear 153D. There is a risk of bending. When such bending occurs, the meshing between the oil gear 153D and the gear 153A is released, and the door portion 140 may rotate at a high rotation speed due to its own weight. Further, as in Comparative Examples 1 and 2, when the door gear shaft portion is provided on the front side of the panel upper side and the gear 200C is provided on the door gear bearing portions 200A and 210A, a sufficient number of gear teeth 200C1 and 210C1 are provided in the arc direction. The doors 140 may not be arranged side by side, and the door 140 may not rotate smoothly.
On the other hand, in the above embodiment, since the door gear shaft portion 153B and the door gear bearing portion 153C are provided in the door gear portion 153, when the vicinity of the door gear portion 153 is operated, the door gear shaft portion 153B and the door gear bearing portion 153C The door part 140 can be prevented from being bent by the engagement. Therefore, the door part 140 can be reliably rotated at a slow rotation speed by the oil gear 153D. Further, even if the door portion 140 is formed of a thin material that is easily elastically deformed, the door portion 140 can be reliably rotated at a low rotation speed. Furthermore, a sufficient number of gear teeth 153A2 can be provided side by side in the arc direction, and the door portion 140 can be smoothly rotated.

[Modification of Embodiment]
Note that the present invention is not limited to the above-described embodiment, and includes the following modifications as long as the object of the present invention can be achieved.

  That is, when the opening / closing pivot support device of the present invention is applied to an electric device provided with a switch, a terminal, and the like facing from the upper surface, the opening is formed on the upper surface as the first surface and the rear surface as the second surface. It is good also as a structure provided over. With such a configuration, it is possible to prevent the gear from being exposed from the upper surface side which is easily noticed by the user during operation or the like.

Then, the door hinge bearing portion 152B may be formed as one component, and the door hinge bearing portion 152B may be fixed to the front panel portion 130 by screwing or the like, and the door hinge shaft portion 152A may be integrally formed with the door portion 140.
Further, if the recesses 152B1 and 153A11 and the extension 151A are not provided, the shape of the door hinge bearing portion 152B and the gear 153A can be simplified, and the mold shape can also be simplified. You can plan.
Furthermore, if the door gear shaft portion 153B and the door gear bearing portion 153C are not provided, the number of parts can be reduced, the structure can be simplified, and the cost can be easily reduced.

  Further, the opening / closing pivot support device of the present invention may be applied to a display device such as a PDP (plasma display panel) or an organic EL as an electric device, a car navigation device, a personal computer, a mobile phone, a home phone, and the like.

  In addition, the specific structure and procedure for carrying out the present invention can be appropriately changed to other structures and the like within a range in which the object of the present invention can be achieved.

[Effect of the embodiment]
As described above, in the above-described embodiment, the opening / closing pivot support device 150 that pivotally supports the front panel 130 so that the door 140 can be opened and closed is the opening 151, the door hinge 152, the door gear 153, and the oil gear. 153D and a gear 153A. Further, the door hinge portion 152 and the door gear portion 153 are provided with blocking surface portions 152B2 and 153A12 that are positioned on substantially the same plane as the surface of the panel upper front portion 132A when the door portion 140 is opened. The door hinge shaft portion 152A and the door hinge bearing portion 152B of the door hinge portion 152 and the door gear shaft portion 153B and the door gear bearing portion 153C of the door gear portion 153 are parallel to the surface of the panel upper front portion 132A in a state where the door portion 140 is opened. It is detachable from the bottom.
For this reason, the gear 153A in the opening 151 is not passed through the vicinity of the upper edge of the opening 151 with the separating gear teeth 153A2 located farthest from the door 140 among the gear teeth 153A2 arranged in an arc shape. Can be inserted into.
Accordingly, the gap between the upper edge of the opening 151 and the gear 153A can be reduced by setting the position of the upper edge of the opening 151 below the position of the tip of the separation gear teeth 153A2. It is possible to prevent the separation gear teeth 153A2 from being exposed. Further, when the door portion 140 is opened, the closing surface portions 152B2 and 153A12 that are located on substantially the same plane as the panel upper front portion 132A are provided, so that the gear teeth 153A2 are provided in this portion. The teeth 153A2 are not exposed. Therefore, the design of the recording / reproducing apparatus 100 can be improved.

It is sectional drawing which shows the door gear part in the state which the conventional door part opened. It is sectional drawing which shows the door gear part in the state which the said conventional door part closed. 1 is a perspective view of a recording / reproducing apparatus according to an embodiment of the present invention. It is sectional drawing which shows the door hinge part in the state in which the door part in the said embodiment opened. It is sectional drawing which shows the door hinge part in the state which the door part in the said embodiment closed. It is sectional drawing which shows the door gear part in the state which the door part in the said one embodiment opened. It is sectional drawing which shows the door gear part in the state which the door part in the said embodiment closed. It is sectional drawing which shows the door gear part of the comparative example 1 in the state which the door part opened. It is sectional drawing which shows the door gear part of the comparative example 1 in the state which the door part closed. It is sectional drawing which shows the door gear part of the comparative example 2 in the state which the door part opened. It is sectional drawing which shows the door gear part of the comparative example 2 in the state in which the door part was closed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Recording / reproducing apparatus as an electric equipment 110 ... Case body 120 ... Electronic equipment 130 ... Front panel part as a panel part 140 ... Door part 150 ... Opening / closing pivot support device 132A ... Panel upper front part which is the front as the first surface 132B ... Panel intermediate lower surface portion which is a lower surface as the second surface 151 ... Opening portion 151A ... Extension portion 152 ... Door hinge portion 152A as a shaft support portion ... Door hinge shaft portion 152B ... Door hinge bearing portion 152B1, 153A11 ... Recess portion 152B2, 153A12 ... Blocking surface portion 153: Door gear portion 153A as a shaft support portion 153A ... Gear 153B ... Door gear shaft portion 153C ... Door gear bearing portion 153D ... Oil gear

Claims (6)

An opening / closing pivot support device that pivotally supports the door portion so as to be freely opened and closed with respect to the panel portion provided in a state of substantially closing one surface of the substantially box-shaped case body,
The panel portion includes a first surface covered by the door portion, and a second surface provided in a state where the surface direction intersects and is continuous with the first surface,
An opening opening from the first surface of the panel portion to the second surface;
A plurality of shaft support portions including a shaft portion provided on one of the panel portion and the door portion, and a bearing portion provided on the other side and receiving the shaft portion via the opening,
An oil gear provided in the panel portion;
A gear that is provided in the door portion and meshes with the oil gear through the opening,
The shaft support portion has a closing surface portion formed in a shape that is positioned substantially on the same surface as the first surface when the door portion is opened, and the shaft portion and the shaft portion in a state where the door portion is opened. The opening / closing pivot support device, wherein the bearing portion is detachable from a direction parallel to the first surface. In the opening and closing pivotal support device according to claim 1,
The first and second surfaces of the panel section are a front surface and a lower surface, or an upper surface and a back surface, respectively. In the opening-and-closing pivotal support device according to claim 1 or 2,
The shaft portion is provided on the panel portion,
The bearing part is provided on the door part. In the opening and closing pivotal support device according to claim 3,
The bearing portion includes a recess provided in a recessed state at a position facing the opening edge of the opening when the door portion is closed,
The opening is provided with an extending portion that extends in a state of entering the recess at an opening edge thereof. In the opening-and-closing pivotal support device according to any one of claims 1 to 4,
The open / close shaft support device according to claim 1, wherein the shaft portion of one of the plurality of shaft support portions is provided in the gear, and the bearing portion is provided in the panel portion. A case body formed in a substantially box shape;
An electronic device housed in the case body,
A panel portion having a first surface and a second surface provided in a state where the surface direction intersects and is continuous with the first surface;
A door portion that is openable and closable on the first surface of the panel portion;
The opening / closing pivot support device according to any one of claims 1 to 5, wherein the door portion is pivotally supported with respect to the panel portion so as to be freely opened and closed.
An electrical apparatus comprising:

Images