JP2013152051A - Air conditioning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning device which is not unpreparedly moved and can be easily moved to another place.SOLUTION: An air conditioning device includes: a handle 9 attached to the upper side of a casing 1 to be able to advance; and a linking part that links the handle 9 to a braking part for a wheel 20 in such a manner that rotation of the wheel 20 is braked when the handle 9 is retracted inside the casing and that braking of the wheel 20 is canceled when the handle 9 is advanced from the casing. The braking part is composed of a pinion gear 20c provided to the wheel 20 and a rack gear 22 that can be engaged with the pinion gear 20c. The linking part includes a shaft 10 with one end connected to the handle 9, and an energizing means to energize the rack gear 22 toward an engagement canceling side. When the handle 9 is retracted, the shaft 10 presses the rack gear 22 to be engaged with the pinion gear 20c; and when the handle 9 is advanced, the shaft 10 moves away from the rack gear 22 to cancel the engagement with the pinion gear 20c.

Description

  The present invention relates to an air conditioner having a moving wheel at the bottom of a housing.

  Patent Document 1 describes an air conditioner in which a caster wheel is attached to the bottom of a casing so that the casing can be easily moved without lifting the casing, thereby improving convenience. Also, in Patent Document 2, a pair of caster wheels are attached to the lower part on the rear side of the casing on the left and right sides, a handle is provided on the upper part, and the casing is tilted to the rear side while holding the handle. An air conditioner that can be moved is described.

JP 2007-271219 A JP 2008-32387 A

  Since the air conditioners described in Patent Documents 1 and 2 do not include a braking unit that brakes the rotation of the wheels, for example, when a person or an object comes in contact with the air conditioner being stationary, or in the case of an earthquake or the like There was a risk of moving inadvertently. In addition, when the height of the air conditioner is halfway and low, it is necessary to bend the waist and push the casing to move it to another place, and there is a problem that the moving operation is troublesome.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an air conditioner that does not move carelessly and can be easily moved to another location.

  An air conditioner according to the present invention is an air conditioner provided with a wheel at a lower portion of a housing, wherein a braking portion that brakes rotation of the wheel, a handle attached to the housing so as to be able to advance and retreat, and the handle The brake is configured to brake the rotation of the wheel when retracted into the housing, and to release the braking of the wheel by the braking portion when the handle has advanced from the housing. And a linkage portion for linking the handle and the brake portion.

  In the present invention, when the handle is retracted into the casing by the linkage section that links the handle attached to the casing so as to be able to advance and retract and the braking section that brakes the rotation of the wheel, When the rotation is braked and the handle advances from inside the housing, the braking of the wheel by the braking unit is released.

The air conditioner according to the present invention is characterized in that the handle can advance to an upper side of the casing.
In the present invention, the braking of the wheel by the braking unit is released by advancing the handle to the upper side of the housing. As a result, for example, the handle can be pulled out from the casing having a low height to release the braking of the wheel, and the handle pulled out in the upper side can be gripped in an easy posture to perform the moving operation.

  In the air conditioner according to the present invention, the braking portion is configured by a pinion gear provided coaxially with the wheel and a rack gear meshable with the pinion gear, and the linkage portion has one end portion connected to the handle. A shaft whose other end can press the rack gear toward the side of meshing with the pinion gear, and biasing means for biasing the rack gear toward the side of releasing the meshing with the pinion gear, The shaft presses the rack gear against the urging force of the urging means and meshes with the pinion gear as the handle enters, and the shaft moves away from the rack gear and moves with the pinion gear as the handle advances. It is the structure which cancels | releases meshing, It is characterized by the above-mentioned.

  In the present invention, when the handle is retracted into the housing, the other end of the shaft whose one end is connected to the handle urges the rack gear to the side that releases the mesh with the pinion gear coaxially provided on the wheel. The wheel is pressed against the urging force and meshed with the pinion gear to brake the rotation of the wheel. When the handle advances from the inside of the housing, the shaft is separated from the rack gear, and the rack gear is moved to the side where the engagement with the pinion gear is released by the urging force of the urging means, and the braking of the wheel is released.

  In the air conditioning apparatus according to the present invention, the braking portion is configured by a pinion gear provided coaxially with the wheel and a rack gear meshable with the pinion gear, and the linkage portion has one end portion connected to the handle. A shaft provided with the rack gear at the other end, the rack gear comes into contact with and meshes with the retraction of the handle, and the rack gear is separated from the pinion gear with the advancement of the handle. It is the structure which cancels | releases meshing | engagement with the said pinion gear.

  In the present invention, when the handle is retracted into the housing, a rack gear provided at one end of the shaft connected to the handle is engaged with the pinion gear, and the rotation of the wheel is braked. When the handle advances from the inside of the housing, the rack gear provided at the other end of the shaft is separated from the pinion gear, the meshing with the pinion gear is released, and the braking of the wheel is released.

The air conditioner according to the present invention is characterized by including a blocking portion capable of blocking the advancement of the handle.
In the present invention, in the state where the advancement of the handle is blocked by the blocking unit, an operation error such as inadvertently grasping the handle and advancing from the inside of the housing to release the braking of the wheel is prevented.

In the air conditioning apparatus according to the present invention, the blocking portion is provided in the housing so that the concave portion (or the convex portion) provided on the handle or the shaft and the engaging and disengaging operation with respect to the concave portion (or the convex portion) can be freely performed. It is characterized by comprising a convex part (or a concave part).
In the present invention, advancement of the handle is surely prevented by a simple structure for engaging and disengaging the convex portion (or concave portion) provided in the housing with respect to the concave portion (or convex portion) provided in the handle or shaft. The state that prevented the advance of the can be released.

The air conditioner according to the present invention includes a blower for blowing the air sucked from the suction port to the outside from the air outlet, and a state where the advancement of the handle is prevented and a state where the advancement of the handle is allowed. An actuator for switching, and a controller that drives the actuator to prevent the handle from advancing when the blower is operating and to allow the handle to advance when the blower is not operating It is characterized by being.
In the present invention, when a blower for blowing air sucked in from the suction port to the outside is operating, the control unit switches the blocking unit to a state in which the advancement of the handle is blocked by driving the actuator. Even if the handle is operated, the advancement of the handle is prevented, and the wheel is prevented from being inadvertently rotatable during the operation of the blower. When the blower is not operating, the actuator is driven to switch to a state in which the advancement of the handle is permitted. Therefore, the handle can be advanced to release the braking of the rotation of the wheel, and the air conditioner can be moved.

An air conditioner according to the present invention includes a detecting means for detecting an external power supply, an actuator for switching the blocking portion between a state where the advancement of the handle is prevented and a state where the advancement of the handle is allowed, and the detection The actuator is configured to prevent the handle from advancing when the means detects external power supply, and to allow the handle to advance when the detection means does not detect external power supply. And a driving control unit.
In the present invention, when the power supply from the outside is detected, the control unit switches to a state in which the blocking unit is driven by the actuator to prevent the knob from moving forward. This prevents the wheel from rotating inadvertently when an external power supply is supplied. When power supply from the outside is not detected, the actuator is driven to switch to a state in which the advancement of the handle is permitted. Therefore, the handle is advanced to release the braking of the wheel and the air conditioner is moved. be able to.

  According to the present invention, since the rotation of the wheel is braked when the handle is not operated and retracted into the housing, even if a person or an object contacts the stationary air conditioner, the wheel moves inadvertently. On the other hand, by grasping the handle and advancing from the inside of the housing to release the braking of the wheel, and operating the handle that has been advanced from the inside of the housing to the moving side to rotate the wheel, An air conditioner that can be easily moved is provided.

It is sectional drawing of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is a rear view of the air conditioning apparatus shown in FIG. FIG. 3 is a partially enlarged view of FIG. 2. It is a rear view of the air conditioner of the state where the handle was pulled up. FIG. 5 is a partially enlarged view of FIG. 4. It is the rear view which expanded a part of air conditioning apparatus concerning Embodiment 2 of this invention. It is the rear view which expanded a part of air conditioning apparatus concerning Embodiment 2 of this invention. It is a control block diagram of the air conditioning apparatus which concerns on Embodiment 2 of this invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an air conditioner according to the present invention will be described based on the drawings with an air cleaner as an example.
(Embodiment 1)
1 is a sectional view of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a rear view of the air conditioner shown in FIG. 1, FIG. 3 is a partially enlarged view of FIG. 2, and FIG. FIG. 5 is a partially enlarged view of FIG. 4.

  The air conditioner according to the present invention includes a deodorizing filter 2, a dust collection filter 3, a humidification filter unit 4, a blower 5, a duct 6 and the like inside a rectangular box-shaped resin casing 1. In FIG. 1, the left side is the front side, and the right side is the back side.

  The top plate 1b of the housing 1 is inclined so as to decrease in height toward the rear side, and an operation unit (not shown) provided with a switch for driving operation is provided on the upper front side of the top plate 1b. It has been. A display unit (not shown) for displaying the operation state is provided on the upper part on the front side of the housing 1.

  A rear panel 7 provided with a large number of suction ports 7a is detachably attached to the rear surface of the housing 1. The back panel 7 is attached to the housing 1 by a claw (not shown) provided on the upper portion of the panel engaging with a receiving portion (not shown) on the housing 1 side. 2 to 5, the rear portion of the housing 1 and the rear panel 7 are partially cut away.

  On the inner side of the back panel 7, a deodorizing filter 2 and a dust collection filter 3 are detachably provided in order from the side close to the back panel 7. The internal deodorizing filter 2 and the dust collection filter 3 can be removed with the back panel 7 removed.

  A humidifying filter unit 4 is provided on the back side of the dust collection filter 3. The humidifying filter unit 4 includes a water storage tank 41, a vertical humidifying filter main body 42 in which the lower end is immersed in the water in the water storage tank 41, a cylindrical holding frame 43 that holds the humidifying filter main body 42, and a holding frame 43. The driving roller 44 is in contact with the outer periphery of the motor, the driving motor 45 rotates the driving roller 44, and the like.

  The blower 5 includes a sirocco fan (impeller) 5a and a fan motor 5b that rotationally drives the impeller 5a. The space where the sirocco fan 5 a is provided communicates with the lower end of the duct 6. The upper end of the duct 6 communicates with the outside through an air outlet 8 provided in the top plate of the housing 1. The blowing direction from the duct 6 is inclined obliquely rearward.

  In the above configuration, the humidifying filter main body 42 rotates by driving the drive motor 45, and the water sucked from the water storage tank 41 penetrates the entire humidifying filter main body 42. When the fan motor 5b is driven, the sirocco fan 5a rotates and external air is sucked into the housing 1 from the suction port 7a. The air sucked from the suction port 7a passes through the deodorizing filter 2 and the dust collecting filter 3, and is deodorized and collected. The air that has passed through the dust collecting filter 3 passes through the humidifying filter main body 42 and is added with moisture, and then flows through the sirocco fan 5a to the upper side of the duct 6 and is humidified to the outside from the air outlet 8 Air is released.

  A rod-shaped handle 9 extending in the left-right direction is arranged on the upper side of the rear portion of the top plate 1b of the housing 1, and each vertical shaft 10 connected to the left and right ends of the handle 9 is provided on the top plate 1b. The housing 1 is held by the housing 1 so that it can be inserted into and removed from the inside of the housing 1 through the hole 1c. At the lower end of each shaft 10, a step portion 10a having a lower diameter is formed. Although not shown in the drawings, a guide for guiding each shaft 10 to be movable in the vertical direction and a shaft 10 for preventing the shaft 10 from being detached from the housing 1 when the handle 9 is pulled out upward. A stopper is provided.

  Two wheels 20 with a locking mechanism are attached to the left and right end portions of the housing 1 at the lower rear side of the bottom plate 1 a of the housing 1. Two wheels 21 that are not provided with a locking mechanism are attached to the front lower portion of the bottom plate 1 a on the left and right end portions of the housing 1. All of the four wheel devices 20 and 21 provided at the four corners of the bottom plate 1a have the direction of the rotating shaft 20b fixed in the front-rear direction of the housing 1, and the air conditioner is in the left-right direction (lateral direction) of the housing 1. It can only be moved to.

  The wheel 20 with a lock mechanism includes a tire 20a in which the outer peripheral portion of a resin wheel is covered with a rubber material. A pinion gear 20c is fixed to the side surface of the tire 20a coaxially with the rotation shaft 20b, and the pinion gear 20c rotates with the rotation of the tire 20a. The wheel 21 without the lock mechanism includes a tire 21a in which the outer peripheral portion of a resin wheel is covered with a rubber material, but does not include a pinion gear.

  A rack gear 22 is disposed above the pinion gear 20c so as to mesh with the pinion gear 20c. The rack gear 22 is formed integrally with the upper rack gear base 23. The rack gear base 23 includes a bottom portion 23a, a side portion 23b extending upward from the periphery of the bottom portion 23a, and a flange portion 23c extending laterally outward from the upper end of the side portion 23b, and a recess is formed inside the side portion 23b. 23d has a cross-sectional shape. The inner diameter of the recess 23d is smaller than the diameter of the shaft 10 and larger than the diameter of the stepped portion 10a. The rack gear 22 is attached to the lower surface of the bottom 23a of the rack gear base 23 downward.

  The rack gear base 23 is accommodated in a substantially cylindrical spring holding portion 25 having an inner diameter larger than the outer diameter of the flange portion 23 c, and the spring holding portion 25 is fixedly supported on the inner wall of the housing 1. The spring holding part 25 has a spring receiving part 25b bent inward so as to form an opening 25a through which the bottom part 23a of the rack gear base 23 can pass at the lower end. The spring holding portion 25 has a stopper portion 25d bent inward so as to form an opening 25c through which the shaft 10 can pass at the upper end.

  A spring 24 made of a compression coil spring is disposed between the spring receiving portion 25 b and the flange portion 23 c of the rack gear base 23. In a state where the handle 9 is not pulled out upward, the shaft 10 is lowered, the stepped portion 10a is fitted into the recess 23d of the rack gear base 23, and the rack gear base 23 is pressed downward. The pressed rack gear base 23 descends against the spring force of the spring 24, the rack gear 22 meshes with the pinion gear 20c, and the rotation of the pinion gear 20c and the tire 20a is prevented. Therefore, in a state where the rotation of the tire 20a is prevented, the casing 1 will not move even if it is carelessly pressed.

  When the handle 9 is pulled upward, the shaft 10 is raised, and the rack gear base 23 is not pressed by the shaft 10, so that the rack 23 is moved upward by the spring force of the spring 24, and the collar portion 23c is in contact with the stopper portion 25d. Stop at. In this state, since the rack gear 22 is not meshed with the pinion gear 20c, the pinion gear 20c and the tire 20a are not prevented from rotating. As a result, the air conditioner can be moved by grasping the handle 9 drawn upward and pushing it horizontally.

(Embodiment 2)
6 is a rear view in which a part of the air conditioner according to Embodiment 2 of the present invention is enlarged, FIG. 7 is a rear view in which a part of the air conditioner is enlarged, and FIG. 8 is a control configuration of the air conditioner. FIG. The second embodiment is different from the first embodiment in that a blocking portion capable of blocking the advancement of the handle 9 is provided. 6 and 7, the back surface portion of the housing 1 and the back panel 7 are partially cut away.

  A slit 10 b is formed on the lateral side surface in the middle of the shaft 10. An eccentric cam 26 that rotates around the longitudinal axis and can enter the slit 10 b is disposed on the side of the shaft 10 and is fixed to the inner wall of the housing 1, and the output shaft 27 a of the stepping motor 27 is connected to the eccentric cam 26. It is attached to the rotating shaft.

  A position detection sensor 28 is installed on the inner end face of the spring receiving portion 25 b of the spring holding portion 25. The position detection sensor 28 is turned on when the rack gear base 23 is opposed, and is turned off when the rack gear base 23 is not opposed. As a result, the position detection sensor 28 is turned on only when the shaft 10 descends to the lowest position while pressing the rack gear base 23 and the rack gear base 23 faces the position detection sensor 28. Whether or not is lowered to the lowest part is detected.

  A control unit 30 is provided, and a detection signal from the position detection sensor 28 is input to the control unit 30. Although not shown, a fan changeover switch 29 for switching the operation state of the sirocco fan 5a is provided in the operation unit of the top board 1b, and a changeover signal for the fan changeover switch 29 is also input to the control unit 30. The sirocco fan 5a is switched to, for example, two states of operation off and on. The control unit 30 outputs drive signals for the fan motor 5b and the stepping motor 27. When the power cord of the air conditioner is connected to an AC power supply, a power supply voltage is supplied to the power supply terminal Vcc of the control unit 30.

  When the sirocco fan 5a is in an off state, the stepping motor 27 is driven so that the eccentric cam 26 does not protrude toward the shaft 10, and the shaft 10 is not prevented from rising. Can be made rotatable. On the other hand, in a state where the sirocco fan 5a is on, when the position detection sensor 28 detects that the shaft 10 is lowered to the lowest position, the eccentric cam 26 rotates and enters the slit 10b, and the shaft Since 10 is prevented from rising, the handle 9 cannot be pulled upward and the wheel 20 cannot rotate.

  Instead of the configuration in which the eccentric cam 26 is driven based on on / off of the operation of the sirocco fan 5a, a configuration in which the eccentric cam 26 is driven based on on / off of power supply to the air conditioner may be used. Specifically, since the control unit 30 can detect the on / off of the power supply to the air conditioner by supplying the power supply voltage to the power supply terminal Vcc, the detection means for detecting the power supply from the outside is the control unit. 30.

  In the second embodiment, the shaft 10 is provided with the slit 10b (concave portion) and the housing 1 is provided with the eccentric cam 26 (convex portion). You may comprise so that a recessed part may be provided. Further, depending on the shape of the handle 9, it is possible to provide the handle 9 with a recess or projection instead of providing the shaft 10 with a recess or projection.

  In the first and second embodiments, the rack gear 22 is held on the rack gear base 23 and the rack gear 22 meshes with the pinion gear 20c when the shaft 10 presses the rack gear base 23. However, the rack gear base 23 is interposed. Instead, the rack gear may be directly attached to the lower end portion of the shaft 10.

  In the above embodiment, the air conditioner according to the present invention has been described using the air purifier as an example. However, the air conditioner is not limited to the air purifier, and is installed on the floor surface and various air conditioners that move the installation location. Can be applied.

DESCRIPTION OF SYMBOLS 1 Housing | casing 5 Blower 7a Inlet 8 Outlet 9 Handle 10 Shaft (linkage | linkage part)
10b Slit (recess, blocking part)
20 wheels 20c pinion gear (braking part)
22 Rack gear (braking part)
23 Rack gear base (linkage)
24 Spring (biasing means, linkage part)
25 Spring holding part (linkage part)
26 Eccentric cam (convex part, blocking part)
27 Stepping motor (actuator)
30 Control unit (detection means)

Claims (8)

In the air conditioner with wheels at the bottom of the housing,
A braking unit for braking rotation of the wheel;
A handle attached to the housing so as to be able to advance and retreat;
When the handle is retracted into the housing, the braking portion brakes the rotation of the wheel, and when the handle is advanced from the housing, the braking portion releases the wheel. As described above, the air conditioning apparatus includes a linkage portion that links the handle and the braking portion.   The air conditioner according to claim 1, wherein the handle can advance to an upper side of the housing. The braking portion is constituted by a pinion gear provided coaxially with the wheel, and a rack gear meshable with the pinion gear,
The linkage portion has one end connected to the handle and the other end biased to a side that can press the rack gear to the side that meshes with the pinion gear, and the rack gear that urges the side to release the meshing with the pinion gear. Urging means for engaging the pinion gear with the rack pressing the rack gear against the urging force of the urging means as the handle is retracted, and the shaft as the handle advances. The air conditioning apparatus according to claim 1, wherein the air conditioning apparatus is configured to release the meshing with the pinion gear while being separated from the rack gear. The braking portion is constituted by a pinion gear provided coaxially with the wheel, and a rack gear meshable with the pinion gear,
The linkage portion includes a shaft having one end connected to the handle and the rack gear provided to the other end, and the rack gear contacts and meshes with the pinion gear when the handle is retracted, and the handle advances. The air conditioner according to claim 1 or 2, wherein the rack gear is configured to be disengaged from the pinion gear while being separated from the pinion gear.   The air conditioner according to any one of claims 1 to 4, further comprising a blocking portion capable of blocking the advancement of the handle.   The blocking portion includes a concave portion (or a convex portion) provided on the handle or the shaft, and a convex portion (or concave portion) provided on the casing so as to be freely engaged and disengaged with respect to the concave portion (or convex portion). The air conditioner according to claim 5, wherein the air conditioner is configured. A blower for blowing the air sucked in from the suction port to the outside from the air outlet;
An actuator for switching the blocking portion between a state where the advancement of the handle is prevented and a state where the advancement of the handle is allowed;
A control unit that drives the actuator so as to prevent the handle from advancing when the blower is operating and to allow the handle to advance when the blower is not operating. The air conditioner according to claim 5 or 6. Detection means for detecting external power supply;
An actuator for switching the blocking portion between a state where the advancement of the handle is prevented and a state where the advancement of the handle is allowed;
The advancement of the handle is prevented when the detection means detects an external power supply, and the advancement of the handle is allowed when the detection means does not detect an external power supply. The air conditioning apparatus according to claim 5, further comprising a control unit that drives the actuator.

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