JP4636038B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner, and more particularly, to an air conditioner including a front panel that is attached to be openable and closable so as to cover an opening on the front side of an indoor unit body.

  Conventionally, as shown in FIG. 12, an air conditioner includes a front panel 62 that is attached to be openable and closable so as to cover an opening on the front side of the indoor unit main body 61 (for example, Patent Document 1). Patent No. 3121505)). In this air conditioner, an arm 66 to be inserted into the indoor unit main body 61 protrudes from the upper surface of the rear surface of the front panel 62, and a shaft 65 extending in the horizontal direction is provided on the tip side of the arm 66. On the other hand, the indoor unit main body 61 is provided with a bearing portion 63 for rotatably supporting the shaft 65 of the arm 66.

In this air conditioner, when the front panel 62 is opened with respect to the indoor unit body 61, the upper end of the arm 66 near the shaft 65 may hit the upper edge of the opening of the indoor unit body 61. In this case, since the point of action where the arm 66 hits the upper edge of the opening of the indoor unit main body 61 is near the shaft 65 as compared with the point of force on the front panel 62 side with the shaft 65 as a fulcrum, the lever principle is used. Greater power works. For this reason, there is a problem that the upper edge portion of the opening of the indoor unit main body 61 hit by the arm 66 is damaged, and the aesthetic appearance of the front surface of the air conditioner is impaired.
Japanese Patent No. 3121505

  Then, the subject of this invention is providing the air conditioner which prevents that an indoor unit main body side is damaged when opening a front panel, and does not spoil the beauty | look.

In order to solve the above problems, the air conditioner of the present invention is
An air conditioner comprising an indoor unit main body and a front panel attached to be openable and closable so as to cover an opening on the front side of the indoor unit main body,
An arm extending toward the inside of the opening of the indoor unit main body is projected on the back surface and the upper side of the front panel,
A shaft extending in the horizontal direction in parallel with the opening surface of the opening is provided on the distal end side of the arm,
A bearing portion that rotatably supports the shaft is provided in the opening of the indoor unit body.
When the front panel is rotated about the axis and is fully opened at a predetermined angle with respect to the indoor unit body, a gap is formed between the arm and the upper edge of the opening of the indoor unit body. Is formed ,
When the front panel is further opened from the fully opened state with respect to the indoor unit body, the upper edge of the front panel is a part above the upper edge of the opening of the indoor unit body with the gap maintained It is characterized by abutting on .

  In the air conditioner according to the present invention, the shaft provided on the rear surface of the front panel and on the tip side of the arm projecting upward is parallel to the opening surface of the opening of the indoor unit main body and extends in the horizontal direction. It is rotatably supported by a bearing portion provided in the opening of the machine body. Then, when the front panel rotates about the axis and is fully opened at a predetermined angle with respect to the indoor unit body, an arm extends from the back surface of the front panel and from above to the opening of the indoor unit body. And a gap between the opening and the upper edge of the indoor unit body. As a result, when the front panel is opened, the upper end in the vicinity of the axis of the arm does not hit the upper edge of the opening of the indoor unit body, so that the indoor unit body side can be prevented from being damaged, and the front appearance of the air conditioner is impaired. I can not.

Further , when the front panel is further opened from the fully opened state with respect to the indoor unit body, the upper edge of the front panel abuts on a portion above the upper edge of the opening of the indoor unit body while maintaining the gap. By this, it can be ensured that the arm does not hit the upper edge of the opening of the indoor unit main body.
In an air conditioner according to an embodiment, the front panel is rotated about the axis and opened to a fully open state that forms a predetermined angle with respect to the indoor unit main body, and then further exceeds the fully open state to the front surface. When the panel is opened, the arm is elastically deformed in a direction in which the shaft is detached from the bearing portion in the horizontal direction.

  In the air conditioner according to an embodiment, when the front panel is attached to the indoor unit body by being pushed from the front to the rear in a posture to create the fully open state, the front panel faces the rear of the outer peripheral portion of the tip of the shaft. Until the shaft reaches the peripheral edge, the arm abuts on a portion corresponding to the front of the peripheral portion of the bearing portion, and the arm is elastically deformed in the same direction as the shaft is removed from the bearing portion. The taper part to be made is formed.

  In the air conditioner according to the embodiment, when the front panel is attached to the indoor unit body by being pushed from the front to the rear in a posture to make the fully opened state, the shaft reaches the peripheral edge. The tapered portion formed at the outer peripheral portion of the tip of the shaft abuts on a portion corresponding to the front of the peripheral portion of the bearing portion, and the arm is elastically oriented in the same direction as the shaft is detached from the bearing portion. Deform. Therefore, the front panel can be easily attached to the indoor unit main body.

  As is clear from the above, according to the air conditioner of the present invention, it is possible to realize an air conditioner that prevents the indoor unit main body side from being damaged when the front panel is opened so that the aesthetic appearance is not impaired. it can.

Still when opened, arm and an indoor unit indoor unit body upper edge of the front panel while maintaining a gap between the upper edge of the opening of the body from the fully open state the front panel to the indoor unit main body By abutting on a portion above the upper edge of the opening, it is possible to ensure that the arm does not hit the upper edge of the opening of the indoor unit main body.

  Further, according to the air conditioner of one embodiment, when the front panel is pushed and attached to the indoor unit body from the front to the rear in a posture in which the front panel should be fully open, The tapered portion formed at the outer peripheral portion of the front end of the inner surface of the indoor unit comes into contact with a portion corresponding to the front of the periphery of the bearing portion and elastically deforms the arm in the same direction as the direction in which the shaft is removed from the bearing portion. The front panel can be easily attached.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

  FIG. 1 is a sectional view showing a portion related to the attachment and detachment of an indoor unit main body and a front panel of a wall-hanging indoor unit of an air conditioner according to an embodiment of the present invention, and FIG. Shown from (−X side). FIG. 3 shows a view of FIG. 2 viewed from the right side (−Y side).

  As can be seen from FIGS. 2 and 3, the air conditioner includes an indoor unit main body 1, and a front panel 4 that is detachably attached so as to cover the opening 9 on the front side of the indoor unit main body 1. It has. 2 and 3, the front panel 4 is opened at an opening angle of approximately 90 ° as a predetermined angle with respect to the indoor unit body 1 and is in a fully open state in a substantially horizontal posture. When the front panel 4 is closed with respect to the indoor unit main body 1 and takes a substantially vertical posture, the opening 9 of the indoor unit front surface 3 is blocked by the front panel 4. A grill (not shown) for sucking indoor air is formed on the upper surface 2 of the indoor unit body 1.

  As shown in FIG. 1, an arm 20 that extends toward the inside of the opening 9 of the indoor unit front surface 3 of the indoor unit main body 1 protrudes from the back surface 40 and the upper side of the front panel 4. 1 corresponds to a cross section taken along line AA in FIG. The arm 20 includes a tapered first arm portion 21 extending substantially perpendicularly to the back surface 40 of the front panel 4, and an upper edge 41 of the front panel 4 bent by approximately 90 ° with respect to the first arm portion 21. The second arm portion 22 extends to a substantially corresponding position. A shaft 30 extending in the horizontal direction and parallel to the opening surface of the opening 9 is provided at the tip of the second arm portion 22.

  4 shows an enlarged perspective view of the shaft 30 at the tip of the arm 20 extending from the front panel 4 shown in FIG. As shown in FIG. 4, the shaft 30 provided on the tip side of the second arm portion 22 is basically a short cylinder defined by an outer peripheral surface 30s and an end surface 30e, and is flat and inclined with respect to the axis. It has the external shape obtained by forming the 1st chamfer 31 which consists of a surface, the 2nd chamfer 32, and the 3rd chamfer 33 as an example of a taper part. R 35 is provided at the boundary between the end face 30e and each chamfer 31, 32, 33, and R 36 is provided at the boundary between the outer peripheral surface 30s and each chamfer 31, 32, 33, and Further, rounds 37 are provided at the boundaries between the chamfers 31, 32 and 33, respectively.

  A pair of these arms 20 and shafts 30 are provided symmetrically on the upper part of the back surface of the front panel 4. The front panel 4, the pair of arms 20 and the shaft 30 are made of integrally molded resin.

  As shown in FIG. 1, the indoor unit body 1 is provided with a bearing portion 10 that rotatably supports a shaft 30 in the opening 9. The bearing portion 10 includes a guide plate 12 having a semicircular peripheral edge 13 that is curved so as to be depressed forward (−X direction), and a restricting member that is disposed behind the guide plate 12 and extends in the horizontal direction (Y direction). 11 (see FIG. 10). As shown in FIG. 6 (corresponding to a cross section taken along line B-B in FIG. 3), the guide plate 12 has a slope 12 f that is inclined toward the arm 20 toward the rear (+ X direction). Yes. The peripheral edge 13 of the guide plate 12 is located behind the slope 12 f of the guide plate 12. In FIG. 6, the same components as those in FIG. 1 are denoted by the same reference numerals.

  As shown in FIG. 1, when the front panel 4 is attached to the indoor unit body 1, the peripheral edge 13 of the guide plate 12 supports the shaft 30 in a freely rotatable manner. The restricting member 11 restricts the distal end of the second arm portion 22 from moving backward (+ X direction), so that the shaft 30 is detached backward (+ X direction) from the position where the shaft 30 is fitted to the peripheral edge 13 of the guide plate 12. To regulate.

  A pair of the bearing portions 10 are provided symmetrically on the upper part in the indoor unit body 1 corresponding to the pair of arms 20 and the shaft 30 of the front panel 4.

  Further, the first chamfer 31 of the shaft 30 is located at a portion facing the lower portion 13b of the peripheral edge 13 of the guide plate 12 in the outer peripheral portion of the front end of the shaft 30 when the front panel 4 is fully open as shown in FIG. Is formed. Further, the second chamfer 32 of the shaft 30 is formed at a portion facing the central portion 13a of the peripheral edge 13 in the outer peripheral portion of the front end of the shaft 30 when the front panel 4 is in a fully opened state. The third chamfer 33 of the shaft 30 is formed at a position facing the rear (+ X direction) in the outer peripheral portion of the tip of the shaft 30 when the front panel 4 is in a fully open state.

  When attaching the front panel 4 to the indoor unit main body 1, the operator holds the front panel 4 in a horizontal posture and holds it in his / her hand, and the shaft 30 is positioned at the inclined surface 12f of the guide plate 12 as shown in FIG. At the same time, the front panel 4 is pushed horizontally from the front to the rear. In FIG. 7, the same components as those in FIG. 1 are denoted by the same reference numerals.

  As a result, the third chamfer 33 (see FIG. 1) of the shaft 30 is guided and inserted along the inclined surface 12f of the guide plate 12, and is fitted to the peripheral edge 13 of the guide plate 12 as shown in FIG.

  Until the shaft 30 reaches the peripheral edge 13 of the guide plate 12, the third chamfer 33 formed on the outer periphery of the tip of the shaft 30 elastically moves the arm 20 in the same direction as the shaft 30 is detached from the bearing portion 10. Deform. Therefore, the front panel 4 can be easily attached to the indoor unit body 1.

  Thereafter, the front panel 4 is rotated around the shaft 30 with the shaft 30 supported by the bearing unit 10, and the front panel 4 is closed with respect to the indoor unit body 1.

  On the other hand, when removing the front panel 4 from the indoor unit body 1, as shown in FIG. 1, the operator holds the lower part 42 of the front panel 4 and applies an external force F to lift it up. Then, the front panel 4 is opened from the closed state to the fully opened state with respect to the indoor unit body 1. At this time, the front panel 4 easily rotates around the shaft 30 while the shaft 30 is supported by the bearing portion 10.

  In the fully open state, the upper edge 41 of the front panel 4 contacts the portion 2 a above the opening 9 in the upper surface 2 of the indoor unit body 1. This is because the length of the arm 20 and the position of the peripheral edge 13 of the guide plate 12 in the indoor unit body 1 are set so as to be so. A gap 9 a remains between the arm 20 and the upper edge 2 e of the opening 9. Therefore, there is no possibility that the upper edge 41 or the arm 20 of the front panel 4 and the upper edge 2e of the opening 9 collide and are damaged.

  In this fully opened state, the front panel 4 is supported by an engaging portion made of a rib (not shown) provided between the indoor unit body 1 and the arm 20. Therefore, even if the operator removes his / her hand from the front panel 4, the posture of the front panel 4 is maintained in the fully open state.

  Next, as shown in FIG. 8, when the operator tries to further open the front panel 4 from the fully open state with respect to the indoor unit body 1, the upper edge 41 of the front panel 4 serves as a fulcrum, and the front panel 4 A downward force F <b> 1 corresponding to the external force F received is applied to the shaft 30. As a result, the first chamfer 31 formed on the outer peripheral portion of the tip of the shaft 30 comes into contact with the lower portion 13 b of the peripheral edge 13. As a result, the arm 20 is elastically deformed such that the shaft 30 is detached from the bearing portion 10 in the horizontal direction. The front panel 4 is slightly opened from the fully opened state by the amount that the first chamfer 31 slightly sinks into the lower portion 13b of the peripheral edge 13.

  From this state, as shown in FIGS. 9 and 10 (corresponding to FIG. 9 as viewed obliquely from above), when the operator further opens the front panel 4 with respect to the indoor unit body 1, the front panel A forward force F <b> 2 corresponding to the external force F received by the front panel 4 acts on the shaft 30 with the upper edge 41 of 4 serving as a fulcrum. As a result, the second chamfer 32 formed on the outer periphery of the tip of the shaft 30 comes into contact with the central portion 13 a of the peripheral edge 13 of the guide plate 12. As a result, the arm 20 is further elastically deformed in a direction in which the shaft 30 is detached from the bearing portion 10 in the horizontal direction, and the shaft 30 is detached from the bearing portion 10.

  Thus, when the operator applies a little extra force to the front panel 4 to remove the front panel 4 from the fully open state of the front panel 4, the shaft 30 is easily detached from the bearing portion 10. Further, since the upper edge 41 of the front panel 4 serves as a fulcrum and a force larger than the external force F is applied to the shaft 30, the shaft 30 is further easily detached from the bearing portion 10. Therefore, the front panel 4 can be easily removed from the indoor unit body 1. Moreover, the front panel 4 is detached from the indoor unit body 1 by only one type of operation for rotating the front panel 4 in the opening direction with respect to the indoor unit body 1. Therefore, the front panel 4 can be removed more easily. Moreover, when the front panel 4 is further opened from the fully opened state with respect to the indoor unit body 1, there is no possibility that the upper edge 41 or the arm 20 of the front panel 4 and the upper edge 2e of the opening 9 collide and are damaged. .

  According to the air conditioner having the above configuration, when the front panel 4 is rotated about the shaft 30 and is fully opened at a predetermined angle with respect to the indoor unit main body 1, By forming a gap 9a between the arm 20 extending into the opening 9 of the indoor unit body 1 and the upper edge 2e of the opening 9 of the indoor unit body 1, the axis of the arm 20 is opened when the front panel 4 is opened. Since the upper end in the vicinity does not hit the upper edge 2e of the opening 9 of the indoor unit body 1, it is possible to prevent the indoor unit body 1 side from being damaged when the front panel 4 is opened so that the aesthetic appearance is not impaired.

  Further, when the front panel 4 is further opened from the fully open state with respect to the indoor unit body 1, the front panel 4 is maintained with a gap 9 a between the arm 20 and the upper edge 2 e of the opening 9 of the indoor unit body 1. By abutting the upper edge of the upper portion of the indoor unit body 1 above the upper edge of the opening 9 of the indoor unit body 1, the arm 20 can be prevented from reliably hitting the upper edge of the opening 9 of the indoor unit body 1.

  Further, the front panel 4 can be easily detached from the indoor unit main body 1 without causing damage even if the operator does not know an accurate removal method in advance. As a result, the cost for service replacement can be reduced.

  In contrast to the shaft 30 shown in FIG. 4, FIG. 5 shows the shaft 130 on which the first and second chamfers are not formed. The shaft 130 is provided on the distal end side of the second arm portion 22 and basically has an outer shape obtained by forming a chamfer 133 on a short cylinder defined by the outer peripheral surface 130s and the end surface 130e. . This chamfer 133 corresponds to the third chamfer 33 in the shaft 30 shown in FIG. A radius 135 is provided at the boundary between the end surface 130e and the chamfer 133, and a radius 136 is provided at the boundary between the outer peripheral surface 130s and the chamfer 133. If a shaft corresponding to the first and second chamfers as described above is not formed, for example, as shown in FIG. 11, a forward force F2 corresponding to an external force F received by the front panel 4 is used. Even if it acts on the shaft 130, the shaft 130 does not detach from the peripheral edge 13 of the guide plate 12. Therefore, it is not possible to obtain a preferable effect by the shaft 30 shown in FIG.

  In the above-described embodiment, the first chamfer 31, the second chamfer 32, and the third chamfer 33 are flat surfaces that are inclined with respect to the axial center. However, the present invention is not limited to this. . The first chamfer 31 and the second chamfer 32, or the first chamfer 31, the second chamfer 32, and the third chamfer 33 are, for example, conical surfaces that taper as they move away from the arm 20. It may be configured to be continuous with each other in a certain angular range around the axis.

Moreover, as an air conditioner of this invention,
An air conditioner including an indoor unit main body and a front panel attached to and detached from the indoor unit main body,
The front panel includes an arm projecting from the back surface so as to be inserted into the indoor unit body, and a horizontal extending shaft is provided on the arm.
The indoor unit main body includes a bearing portion having at least a peripheral edge curved so as to be recessed forward, for rotatably supporting the shaft.
When the front panel receives an external force in the direction of further opening beyond a fully open state that forms a certain opening angle with respect to the indoor unit body, a portion facing the lower part of the peripheral edge of the outer periphery of the tip of the shaft, A first chamfer that elastically deforms the arm in a direction in which the shaft is detached from the bearing portion in the horizontal direction by contacting the lower portion of the peripheral edge may be formed.

  In this air conditioner, when the front panel is opened with respect to the indoor unit main body from the closed state to the fully opened state having a certain opening angle, the front panel is rotated around the shaft while the shaft is supported by the bearing portion. Rotate. When the front panel is further opened from the fully open state with respect to the indoor unit main body, the first chamfer formed on the outer periphery of the end of the shaft is in contact with the lower part of the periphery, so that the shaft is released from the bearing in the horizontal direction. The arm is elastically deformed. Therefore, when the operator applies a little extra force to the front panel to remove the front panel from the fully opened state of the front panel, the shaft is easily detached from the bearing portion. Therefore, even if an operator does not know an accurate removal method in advance, the front panel can be easily removed from the indoor unit main body without causing damage. As a result, the cost for service replacement is reduced.

  Further, when the front panel is further opened from the fully opened state with respect to the indoor unit main body, a portion of the outer peripheral end portion of the shaft facing the central portion of the peripheral edge is brought into contact with the central portion of the peripheral edge. The arm may be elastically deformed to form a second chamfer that separates the shaft from the bearing portion.

  In this air conditioner, when the front panel is further opened from the fully opened state with respect to the indoor unit main body, the second chamfer formed on the outer peripheral portion of the tip of the shaft comes into contact with the central portion of the peripheral edge to The shaft is detached from the bearing portion by elastic deformation. That is, in this air conditioner, the front panel is detached from the indoor unit main body by only one type of operation for rotating the front panel with respect to the indoor unit main body. Therefore, the front panel can be removed more easily.

It is sectional drawing which shows the part regarding attachment / detachment with the indoor unit main body and front panel of the air conditioner of one Embodiment of this invention. It is a figure which shows the place which looked at the said indoor unit (right half) from the front. It is a figure which shows the place which looked at the thing of FIG. 2 from the right side. It is an expansion perspective view which shows the axis | shaft of the arm front-end | tip extended from the said front panel. It is an expansion perspective view which shows the axis | shaft in which the thing equivalent to a 1st and 2nd chamfer is not formed, and contrasted with FIG. It is a figure which shows the place which looked at the part regarding attachment or detachment with an indoor unit main body and a front panel from the front, Comprising: The axis | shaft has shown the state fitted to the periphery of the bearing part. It is a figure which shows the place which looked at the part regarding attachment or detachment with an indoor unit main body and a front panel from the front, Comprising: The axis | shaft has detached | separated from the periphery of a bearing part. It is a figure which shows the state in which the downward force according to the external force which a front panel receives becomes an axis | shaft with the upper edge of a front panel acting as a fulcrum. It is a figure which shows the state in which the upward force according to the external force which a front panel receives acts on the axis | shaft by using the upper edge of a front panel as a fulcrum. It is a figure which shows the place which looked at the thing of FIG. 9 from diagonally upward. It is a figure explaining an effect | action when the axis | shaft of FIG. 5 is provisionally provided in the arm. It is sectional drawing which shows the part regarding attachment / detachment with the indoor unit main body and front panel in the conventional air conditioner.

DESCRIPTION OF SYMBOLS 1 ... Indoor unit main body 2a ... Upper part 2e ... Upper edge 4 ... Front panel 9 ... Opening 9a ... Clearance 10 ... Bearing part 11 ... Restriction member 12 ... Guide plate 12f ... Slope 13 ... Perimeter 20 ... Arm 30 ... Shaft 31 ... 1st chamfer 32 ... 2nd chamfer 33 ... 3rd chamfer 40 ... Back surface 41 ... Upper edge

Claims (3)

An air conditioner comprising an indoor unit main body (1) and a front panel (4) attached so as to be openable and closable so as to cover an opening (9) on the front side of the indoor unit main body (1).
On the back surface (40) and the upper side of the front panel (4), an arm (20) extending toward the opening (9) of the indoor unit main body (1) is protruded.
A shaft (30) extending in the horizontal direction and parallel to the opening surface of the opening (9) is provided on the distal end side of the arm (20),
A bearing portion (10) for rotatably supporting the shaft (30) is provided in the opening (9) of the indoor unit body (1).
When the front panel (4) is rotated about the shaft (30) and opened to a predetermined angle with respect to the indoor unit body (1), the arm (20) and the indoor unit are opened. A gap (9a) is formed between the upper edge (2e) of the opening (9) of the main body (1) ,
When the front panel (4) is further opened from the fully opened state with respect to the indoor unit main body (1), the upper edge (41) of the front panel (4) is maintained with the gap (9a) maintained. An air conditioner which is in contact with a portion (2a) above the upper edge (2e) of the opening (9) of the indoor unit body (1) . In the air conditioner according to claim 1,
The front panel (4) is rotated about the shaft (30) to open to a fully open state at a predetermined angle with respect to the indoor unit main body (1), and further beyond the fully open state to the front surface. An air conditioner characterized in that when the panel (4) is opened, the arm (20) is elastically deformed in a direction in which the shaft (30) is disengaged from the bearing portion (10) in the horizontal direction. In the air conditioner according to claim 1,
When the front panel (4) is pushed and attached to the indoor unit body (1) from the front to the rear in a posture to make the fully open state, it faces the rear end of the outer peripheral portion of the shaft (30). Until the shaft (30) reaches the peripheral edge (13), the shaft (30) abuts the portion (12f) corresponding to the front of the peripheral edge (13) of the bearing portion (10). 30) An air conditioner characterized in that a taper portion (33) for elastically deforming the arm (20) is formed in the same direction as the direction in which 30) is detached from the bearing portion (10).

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