JP2014163619A - Drop prevention structure of indoor unit panel of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drop prevention structure of an indoor unit panel of air conditioner for surely preventing a drop of the indoor unit panel when a hook member and an engaging pin are engaged with each other without spoiling working efficiency when removing the indoor unit panel.SOLUTION: A drop prevention structure of an indoor unit panel of air conditioner comprises: an indoor unit panel 14 arranged at an opening of a decorative panel 12 so as to be freely opened and closed; an engaging part 19 to cause one side end in a transverse direction of the indoor unit panel 14 to be removably engaged with an engaging pin 21 at a peripheral edge of the opening; a hook member 22 arranged at the other side end in the transverse direction of the indoor unit panel 14 to cause engagement with the engaging pin 21 to be released through action in a releasing direction accompanied with a removing action of the indoor unit panel 14 when the engagement of the engaging part 19 is released; a lock fitting 24 converted into a limiting position where an action of the hook member 22 in the releasing direction with respect to the engaging pin 21 and an allowing position where an action of the hook member 22 in the releasing direction with respect to the engaging pin 21; and a holding means 26 for always holding the lock fitting 24 at the limited position when an artificial operation is not carried out.

Description

  The present invention relates to an indoor unit panel fall prevention structure in an air conditioner.

  Some indoor units of an air conditioner include a decorative panel that is installed on a ceiling and has an air outlet and a suction port on a lower surface thereof (see, for example, Patent Document 1). The decorative panel is provided with an opening for inspecting and maintaining the indoor unit, and an openable and closable indoor unit panel is provided in the opening.

  The indoor unit panel is often opened and closed mainly when maintaining the filter, and has a structure that can be easily opened and closed without the need for tools. For example, there is an indoor unit panel that opens downward using one side of the peripheral edge as a fulcrum. In this configuration, a locking portion that is detachably locked with respect to the periphery of the opening is provided on the other side of the peripheral portion of the indoor unit panel, while on the side of the peripheral portion of the indoor unit panel, on the periphery of the opening. A hook member is provided that is rotatably engaged with the provided pin member.

JP 2009-216384 A

  However, if the hook member is simply engaged with the pin member, if an unexpected external force is applied during an earthquake or maintenance, the engagement between both members is easily released, and the indoor unit panel may fall. This is similarly a concern even in the closed state of the indoor unit panel in which locking by the locking portion on the other side of the peripheral portion is simultaneously performed.

  The present invention prevents the indoor unit panel from being dropped in the air conditioner capable of reliably preventing the indoor unit panel from dropping when the hook member and the pin member are engaged without impairing the workability when removing the indoor unit panel. The purpose is to obtain a structure.

  An indoor unit panel fall prevention structure for an air conditioner according to the present invention is provided on a lower surface of an indoor unit installed on a ceiling, and is opened and closed at a decorative panel having an air outlet and a suction port, and an opening opening in the decorative panel. An indoor unit panel that is provided freely and that opens downward with one side of the peripheral part as a fulcrum during maintenance, and is provided on the other side of the peripheral part of the indoor unit panel, and is freely detachable from the peripheral part of the opening. A locking part to be locked and provided on one side of the peripheral part of the indoor unit panel, and rotatably engages with a pin member provided on the peripheral part of the opening part, while the peripheral part of the opening part is A hook member that releases engagement with the engagement pin by a behavior in a release direction accompanying an operation at the time of removing the indoor unit panel when the lock of the lock part is released, and rotates to the tip of the hook member Freely provided A lock fitting that is converted into a restriction position that restricts the movement of the hook member in the release direction with respect to the pin member and an allowable position that allows the hook member to behave in the release direction with respect to the pin member; and Provided, and holding means for always holding the lock fitting in a restricted position when the artificial operation is not performed.

  According to the present invention, the locking member provided at the tip of the hook member is held at the restriction position by the holding means to restrict the behavior of the hook member in the releasing direction with respect to the pin member. It is possible to reliably prevent the indoor unit panel from dropping when engaged. In addition, as long as the lock fitting is converted into an allowable position by performing an artificial operation, the hook member is allowed to move in the releasing direction with respect to the pin member, and the workability when removing the indoor unit panel is not impaired. .

It is the perspective view which looked at the air conditioning apparatus using the fall prevention structure of the indoor unit panel which concerns on embodiment of this invention from diagonally downward. It is a side view in the state where the indoor unit panel of FIG. 1 was closed. FIG. 3 is an enlarged side view of the indoor unit panel of FIG. 2 near one side in a short direction. It is a perspective view in the state where the lock metal fitting was changed into the restriction position near one side of the short direction of the indoor unit panel of FIG. It is a perspective view in the state where the lock metal fitting of Drawing 4 was changed into the permissible position. FIG. 3 is a side view of the indoor unit panel showing a state in which a releasing operation for lifting the other side end in the short direction of the indoor unit panel of FIG. FIG. 7 is a side view of the indoor unit panel showing a state where the other end in the short direction of the indoor unit panel of FIG. 6 is moved to one side in the short direction and the release of the locking by the locking unit is completed. FIG. 8 is a side view of the indoor unit panel showing a state in which the indoor unit panel is opened with a short side end of the indoor unit panel of FIG. 7 as a fulcrum. FIG. 8 shows an operation procedure for converting the lock fitting on one side end in the short direction of the indoor unit panel of FIG. 8 into an allowable position, and (a) shows the short side of the indoor unit panel showing a state in which the lock fitting is held at the restriction position. Side view of one direction, (b) Side view of one side of the short side of the indoor unit panel showing the progress of rotating the lock fitting to the other side of the rotation direction, (c) Rotating the lock fitting to the allowable position The side view of the short side direction side of the indoor unit panel which shows the state is shown, respectively. FIG. 10 is a side view of the indoor unit panel showing a state in which the behavior of the hook member in the releasing direction with respect to the pin member has started when the indoor unit panel of FIG. 9C is removed. It is a perspective view of the short side direction side vicinity of the indoor unit panel of FIG. It is a side view of the indoor unit panel which shows the progress state of the behavior to the release direction with respect to the pin member of the hook member of FIG. It is a side view of the indoor unit panel which shows the separation completion state which finished the behavior to the release direction with respect to the pin member of the hook member of FIG. FIG. 14 is a side view of the indoor unit panel showing a state in which the behavior of the hook member in the engaging direction with respect to the pin member has started in attaching the indoor unit panel of FIG. 13. It is a perspective view of the short side direction side vicinity of the indoor unit panel of FIG. It is a side view of the indoor unit panel which shows the progress state of the behavior to the engagement direction with respect to the pin member of the hook member of FIG. It is a side view of the indoor unit panel which shows the engagement completion state which finished the behavior to the engagement direction with respect to the pin member of the hook member of FIG. FIG. 18 is a side view of the indoor unit panel showing a state in which a locking operation in which the other side end in the short direction of the indoor unit panel of FIG. It is a side view of the indoor unit panel which shows the progress state of the latching operation | movement which moves the other side end of a short side of the indoor unit panel of FIG. FIG. 20 is a side view of the indoor unit panel showing a state in which the other side end in the short direction of the indoor unit panel of FIG. 19 is moved downward to complete the locking by the locking unit.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1: has shown the perspective view which looked at the air conditioning apparatus using the fall prevention structure of the indoor unit panel which concerns on embodiment of this invention from diagonally downward. The air conditioning apparatus according to the present embodiment corresponds to an indoor unit of an air conditioning system having an indoor unit and an outdoor unit, and a ceiling-suspended type in which a main body portion is embedded in a ceiling portion is applied.

  In FIG. 1, the air conditioner 1 has a main body portion 10 embedded in a ceiling portion, and the lower surface of the main body portion 10 has a height substantially matching the ceiling surface. A substantially rectangular decorative panel 12 having an air outlet 11 is attached to the lower surface of the main body portion 10 at one end in the short direction and the other end in the short direction of the peripheral edge. The decorative panel 12 has a substantially rectangular opening 13 at the center thereof and is formed in a frame shape. The decorative panel 12 is provided with a substantially rectangular indoor unit panel 14 that opens and closes the opening 13. The indoor unit panel 14 opens downward with one side in the short direction of the peripheral edge serving as a fulcrum when maintaining the filter 15 provided in the main body portion 10 corresponding to the opening 13.

  FIG. 2 shows a side view of the indoor unit panel 14 in a closed state. In FIG. 2, an opening panel frame 16 that connects both ends in the longitudinal direction from one side in the short direction to the other side is provided on the periphery of the opening 13, and is engaged with the other side end of each opening panel frame 16. A stop pin 17 is projected. An indoor unit panel frame 18 that connects both ends in the longitudinal direction from one side in the short direction to the other side is also provided at the peripheral portion of the indoor unit panel 14. At the other side end of each indoor unit panel frame 18, a locking portion 19 that is detachably locked to each locking pin 17 is provided. The locking portion 19 protrudes upward from the other side end of each indoor unit panel frame 18 and is bent in a hook shape from one side to the lower side from the protruding end to lock each locking pin 17 from the periphery except the lower side. It has the hook-shaped part 20 to be.

  FIG. 3 is an enlarged side view of the indoor unit panel 14 near one side in the short direction, and FIG. 4 is a perspective view of the indoor unit panel 14 near the one side in the short direction, with the lock fitting converted to the restricted position. These show perspective views in a state in which the lock fitting is converted into an allowable position. 3 to 5, an engaging pin 21 (only one of them is shown in FIGS. 3 to 5) projects from one end of each opening panel frame 16 as a pin member. At one end of each indoor unit panel frame 18, a hook member 22 that is detachably engaged with each engagement pin 21 is provided. Each hook member 22 has a hook-like portion 23 that protrudes upward from one end of each indoor unit panel frame 18, extends substantially horizontally from the protruding end to the other side, and engages with the engagement pin 21. doing. Each hook member 22 is slidably engaged with the engagement pin 21 from above between the inner side surface of the bowl-shaped portion 23 and the opposed surface of the indoor unit panel frame 18 facing the hook-like portion 23. In this case, the hook member 22 is engaged with and disengaged from each engagement pin 21 when the hook-like portion 20 of the engagement portion 19 is released from the engagement pin 17 at the other end of each indoor unit panel frame 18. Done when.

  A lock fitting 24 is provided at the tip of the hook-like portion 23 of each hook member 22. A substantially intermediate position in the longitudinal direction of each lock fitting 24 is rotatably supported via a pin 25 at the tip of the hook-like portion 23. Each lock fitting 24 rotates around the pin 25 to restrict the behavior (described later) of the hook member 22 in the releasing direction with respect to the engagement pin 21 (position shown in FIGS. 3 and 4) and the hook member. 22 is converted into a permissible position (position shown in FIG. 5) that allows the behavior of the engagement pin 21 in the releasing direction. In this case, the behavior of the hook member 22 in the releasing direction with respect to the engaging pin 21 is that the hook member 22 moves in the direction in which the engaging pin 21 is detached from the tip of the hook-like portion 23 in accordance with the operation when removing the indoor unit panel 14. This is a movement to release the engagement with the engagement pin 21 by moving.

  The lock fitting 24 is provided with a holding means 26 for holding the lock fitting 24 in a restricted position at all times. The holding means 26 is provided on the weight 27 integrally provided by bending at one end in the longitudinal direction of the lock fitting 24 and the indoor unit panel frame 18 positioned on the rotation locus of the lock fitting 24. And a contact piece 28 that contacts and restricts the rotation of the lock fitting 24. The weight 27 bends one end in the longitudinal direction of the lock fitting 24 to increase the weight on one side in the longitudinal direction, and decenters the rotation center of the lock fitting 24 from the center of gravity of the lock fitting 24. The contact piece 28 holds the lock fitting 24 in the restricted position when the lock fitting 24 is rotated by the weight 27 to one side in the rotation direction (counterclockwise in FIGS. 3 to 5). On the other hand, when the lock piece 24 is rotated to the other side in the rotation direction (clockwise in FIGS. 3 to 5) by performing an artificial operation, the other end in the longitudinal direction abuts and the lock piece 28 is locked. The metal fitting 24 is held at an allowable position by the weight 27. That is, the abutting piece 28 always holds the lock fitting 24 in the restricted position by the weight 27 when not performing the artificial operation of rotating the lock fitting 24 to the other position in the rotational direction.

  The lock fitting 24 includes a guide surface 30 that guides the engagement pin 21 at an allowable position and causes the hook member 22 to be separated from the tip of the hook-shaped portion 23 when the hook member 22 behaves in the release direction with respect to the engagement pin 21. . The lock fitting 24 is rotated to one side in the rotation direction by the engagement pin 21 guided by the guide surface 30 and is converted to the limit position by the weight 27. Further, when the lock fitting 24 is engaged with the engagement pin 21 from a state where the hook member 22 is detached, the lock fitting 24 rotates from the limit position to the other side in the rotation direction by contact with the engagement pin 21. When the engagement of the hook member 22 with respect to 21 is completed, it is rotated to one side in the rotational direction by the weight 27 and returned to the limit position again. The lock fitting 24 has a step portion 31 that holds the engagement pin 21 in the restricted position when the hook-shaped portion 20 of the engagement portion 19 is engaged with the engagement pin 17 at the other end of the indoor unit panel frame 18. It has.

  Next, a procedure for removing the indoor unit panel 14 will be described.

  FIG. 6 is a side view of the indoor unit panel 14 showing a state in which the other end in the short direction of the indoor unit panel 14 is lifted upward and a release operation for releasing the locking by the locking part 19 is started, and FIG. The side view of the indoor unit panel 14 which shows the state which moved the other side edge of the short side of the indoor unit panel 14 to the short side one side and completed the cancellation | release of the latching by the latching | locking part 19 is each shown. 8 is a side view of the indoor unit panel 14 showing a state in which the indoor unit panel 14 is opened with one end in the short direction of the indoor unit panel 14 serving as a fulcrum, and FIG. 9 is a lateral direction of the indoor unit panel 14. Operation procedures for converting the lock fitting 24 at one end to an allowable position are shown. 10 is a side view of the indoor unit panel 14 showing a state in which the behavior of the hook member 22 in the releasing direction with respect to the engaging pin 21 starts when the indoor unit panel 14 is removed. FIG. 11 is a side view of the indoor unit of FIG. A perspective view of the vicinity of one side in the short direction of the panel 14 is shown. In addition, FIG. 12 is a side view of the indoor unit panel 14 showing the progress of the behavior of the hook member 22 in the release direction with respect to the engagement pin 21, and FIG. 13 is the behavior of the hook member 22 in the release direction with respect to the engagement pin 21. The side view of the indoor unit panel 14 which shows the separation completion state which finished is shown, respectively.

  First, as shown in FIG. 6, a release operation is started to lift the other side end of the indoor unit panel 14 in the short direction and release the hooked portion 20 of the locking portion 19 from the locking pin 17. start. Next, as shown in FIG. 7, the other end in the short direction of the indoor unit panel 14 is moved to one side in the short direction to release the hook-like portion 20 of the locking portion 19 from the locking pin 17. Complete. Thereafter, as shown in FIG. 8, the indoor unit panel 14 is opened downward with one side end in the short direction as a fulcrum.

  Then, the lock metal fitting 24 is moved by the operator's own hand from the limit position shown in FIG. 9A to the other side in the rotational direction around the pin 25 as shown in FIG. Rotate by turning an artificial operation. Then, as shown in FIG. 9C, when the other end in the longitudinal direction of the lock fitting 24 comes into contact with the contact piece 28, the weight 27 exceeds the rotation center of the pin 25 at that time. The lock fitting 24 is held at the allowable position by the weight 27.

Thereafter, as shown in FIGS. 10 and 11, when the indoor unit panel 14 is removed, the hook member 22 starts to behave in the releasing direction with respect to the engaging pin 21.
Specifically, when an operation for removing the indoor unit panel 14 is performed by moving one side in the short direction of the indoor unit panel 14 obliquely upward, the operation of the indoor unit panel 14 causes the hook 23 to The hook member 22 moves in a direction (obliquely upward) in which the engagement pin 21 is detached from the tip. Then, as shown in FIG. 12, the lock fitting 24 guides the engagement pin 21 by the guide surface 30 at the permissible position to disengage it from the tip of the hook-like portion 23, and as shown in FIG. Complete the removal. At this time, when the lock fitting 24 is rotated to one side in the rotation direction by the engagement pin 21 guided by the guide surface 30, the weight 27 exceeds the rotation center of the pin 25, so that the lock fitting 24 is converted to the limit position by the weight 27. .

  Next, a procedure for attaching the indoor unit panel 14 will be described.

  FIG. 14 is a side view of the indoor unit panel 14 showing a state in which the hook member 22 starts to behave in the engaging direction with respect to the engaging pin 21 when the indoor unit panel 14 is attached, and FIG. 15 is a side view of the indoor unit panel of FIG. 14 is a perspective view of the vicinity of one side in the short direction of FIG. 14, and FIG. 16 is a side view of the indoor unit panel 14 showing the progress of the behavior of the hook member 22 with respect to the engaging pin 21 in the engaging direction. FIG. 17 is a side view of the indoor unit panel 14 showing the completed state of engagement of the hook member 22 in the engagement direction with respect to the engagement pin 21, and FIG. The side view of the indoor unit panel 14 which shows the state which started the latching operation locked by the latching | locking part 19 is shown, respectively. Further, FIG. 19 is a side view of the indoor unit panel 14 showing the progress of the locking operation in which the other side end in the short direction is moved to the other side in the short direction and is locked by the locking part 19, and FIG. The side view of the indoor unit panel 14 which shows the state which moved the direction other side end downward and completed the latching by the latching | locking part 19 is each shown.

First, as shown in FIG. 13, after the indoor unit panel 14 is positioned in the completed removal state, as shown in FIG. 14, in attaching the indoor unit panel 14, the hook member 22 is moved in the direction of engagement with the engagement pin 21. Start the behavior.
Specifically, when the indoor unit panel 14 is moved from the completed removal state to the other side in the short direction and attached to perform an operation when being attached, The hook member 22 moves in a direction (obliquely downward) in which the engagement pin 21 is engaged from the tip. At this time, as shown in FIG. 15, the lock fitting 24 is pushed by the engagement pin 21 and rotates to the other side in the rotation direction (clockwise in FIGS. 14 and 15).

  After that, when the engaging pin 21 is guided to the proximal end of the hook member 22 as shown in FIG. 16, the engaging pin 21 is separated from the lock fitting 24, and as shown in FIG. After the behavior in the engagement direction with respect to the pin 21 is finished, the engagement is completed. At this time, since the weight 27 does not exceed the rotation center of the pin 25 when it is separated from the engagement pin 21, the lock metal 24 is rotated to one side in the rotation direction by the weight 27 and is returned to the limit position again.

  Then, as shown in FIG. 18, the other side end in the short direction of the indoor unit panel 14 is lifted upward to start the locking operation of the hook-shaped portion 20 of the locking portion 19 with respect to the locking pin 17. Next, as shown in FIG. 9, the other side end of the indoor unit panel 14 in the short side direction is moved to one side in the short side direction, and the locking pin 17 is brought into contact with the other side end of the indoor unit panel frame 18 to engage. Positioned just below the stop 19. Thereafter, as shown in FIG. 20, the other side end in the short direction of the indoor unit panel 14 is moved downward by its own weight, and the hook-shaped portion 20 of the locking portion 19 is locked to the locking pin 17. The installation of the panel 14 is completed. At this time, in the lock fitting 24, the engagement pin 21 of the opening panel frame 16 is held by the step portion 31, and the weight 27 abuts on the abutment piece 28 of the indoor unit panel frame 18 so that it is restrained to the restriction position. Is done.

  Therefore, in the present embodiment, the lock fitting 24 provided at the tip of the hook member 22 is held at the restriction position by the holding means 26 to restrict the behavior of the hook member 22 in the releasing direction with respect to the engagement pin 21. The indoor unit panel 14 can be reliably prevented from dropping when the hook member 22 and the engagement pin 21 are engaged. In addition, as long as the lock fitting 24 is converted into an allowable position by performing an artificial operation, the behavior of the hook member 22 in the releasing direction with respect to the engagement pin 21 is allowed, and workability when removing the indoor unit panel 14 is allowed. Will not be damaged.

  In the present embodiment, the lock fitting 24 and the holding means 26 are provided on the hook member 22 at the other end of each indoor unit panel frame 18. However, the lock fitting and the holding member 26 are provided only on one of the hook members. A holding means may be provided.

DESCRIPTION OF SYMBOLS 11 Air outlet 12 Cosmetic panel 13 Opening part 14 Indoor unit panel 19 Locking part 21 Engagement pin (pin member)
22 hook member 23 hook-shaped portion 24 lock fitting 26 holding means 27 weight 28 contact piece 30 guide surface 31 stepped portion

Claims (6)

A decorative panel provided on the lower surface of the indoor unit installed on the ceiling, having a blowout port and a suction port;
An indoor unit panel that can be freely opened and closed at an opening that opens in the decorative panel, and that opens downward using one side of the peripheral edge as a fulcrum during maintenance;
A locking part that is provided on the other side of the peripheral part of the indoor unit panel and that is detachably locked to the peripheral part of the opening;
Provided on one side of the peripheral part of the indoor unit panel and rotatably engages with a pin member provided on the peripheral part of the opening, while the locking part is unlocked from the peripheral part of the opening A hook member that releases the engagement with the engagement pin by a behavior in a release direction accompanying an operation when the indoor unit panel is removed,
A limit position that is rotatably provided at the tip of the hook member and restricts the behavior of the hook member in the release direction with respect to the pin member, and an allowable position that allows the hook member to behave in the release direction with respect to the pin member. Lock fittings converted into
A holding means provided on the lock fitting, and holding the lock fitting in a restricted position at all times when the artificial operation is not performed;
An indoor unit panel fall prevention structure in an air conditioner characterized by comprising: The hook member includes a hook-shaped portion that extends from the protruding end protruding upward from one side end of the peripheral portion of the indoor unit panel toward the other side and engages with the pin member;
The holding means abuts the weight that decenters the rotation center of the lock fitting from the center of gravity of the lock fitting, and holds the lock fitting in a restricted position by contacting when the lock fitting is rotated to one side in the rotation direction by the weight. And an abutment piece that abuts when the lock fitting is rotated to the other side in the rotational direction by performing an artificial operation and holds the lock fitting in an allowable position by the weight. The indoor unit panel fall prevention structure in the air conditioning apparatus described in 1.   The lock fitting has a guide surface that guides the pin member at a permissible position when the hook member behaves in the release direction with respect to the pin member, and separates the pin member from the tip of the hook-shaped portion. The structure for preventing the indoor unit panel from dropping in the air conditioner according to claim 2, wherein the indoor unit panel is rotated to one side in the rotational direction and converted into a restricted position by contact with the pin member guided in step (3).   When the lock member is engaged with the pin member from a state where the hook member is detached, the lock member rotates from the limit position to the other side in the rotation direction by contact with the pin member, and the hook member with respect to the pin member The fall of the indoor unit panel in the air conditioner according to claim 2 or 3, wherein when the engagement of the air conditioner is completed, the weight is rotated to one side in the rotational direction by the weight and returned to the restriction position again. Prevention structure.   The said locking metal fitting is provided with the step part which hold | maintains the said pin member in a restriction | limiting position, when the said latching | locking part is latched with respect to the periphery of the said opening part. The indoor unit panel fall prevention structure in the air conditioning apparatus described in 1. The hook member and the pin member are provided at a plurality of locations on one side of the peripheral portion of the indoor unit panel,
The structure for preventing an indoor unit panel from dropping in an air conditioner according to any one of claims 1 to 5, wherein the lock fitting and the holding means are provided in at least one of the hook members. .

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