JP3749983B2 - Air filter air filter attachment / detachment structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for detaching an air filter for dust collection and deodorization mounted on, for example, an air conditioner used in a vehicle.
[0002]
[Prior art]
In recent years, in order to improve comfort in the passenger compartment, a filter for collecting dust and deodorization has been installed in the air conditioner. In many cases, the space in the direction in which the air filter is drawn out from the opening becomes narrow, and it is difficult to remove from the opening with a single-plate air filter.
[0003]
In this case, it can be easily conceived to simplify the work of attaching and detaching the air filter by dividing the air filter into a plurality of members in accordance with the space in the direction in which the air filter is pulled out. If only the members are divided, it is necessary to detach and attach each member. Therefore, when viewed from the entire detaching operation of the air filter, the operation becomes complicated.
[0004]
Therefore, as shown in the outside air introduction device for a vehicle disclosed in Japanese Patent Laid-Open No. 6-80013, the outside air filter is composed of filters 16a and 16b divided in the insertion direction of the outside air filter, and the filter 16a and the filter 16b. Are connected with Velcro tapes (registered trademark) 23a and 23b so that the filter 16b can be pulled out simultaneously by pulling out the filter 16a from the air conditioner unit 11.
[0005]
Further, as shown in FIGS. 7A and 7B, both side walls of the connecting member 103 having a V-shaped cross section are attached to the side surface of the member 101 and the side surface of the member 102 of the air filter 100. By connecting the members 101 and 102 to each other, it becomes possible to pull out one member by pulling out one member. It has also been developed to further simplify the detaching operation of the air filter 100 by bending it.
[0006]
[Problems to be solved by the invention]
However, in the structure of the vehicle outside air introducing device disclosed in the above-mentioned publication, when the filter 16a and the filter 16b are detached from the air conditioner unit 11 due to vibration of the vehicle body or the like, the filter 11b remains in the air conditioner even if the filter 11a is pulled out. Since it remains deep inside the unit 11, there arises a problem that the filter 11b must be pulled out using a tool such as a hook.
[0007]
Further, in the air filter attachment / detachment structure of the air conditioner shown in FIGS. 7A and 7B, the member does not drop out as shown in the vehicle outside air introduction device shown in the above-mentioned publication, but the air filter 100 Is limited to one of the right side and the side with respect to the drawing direction. For example, if the air filter 100 is bent to the right side with respect to the drawing direction, the air filter 100 can be easily pulled out, but the structure of the connecting member 103 is on the left side. There is a possibility that it can be bent only.
[0008]
Furthermore, in the outside air introduction device for a vehicle shown in the above publication and the air filter attachment / detachment structure of the air conditioner shown in FIGS. 7A and 7B, a magic tape (registered trademark) or a connecting member is provided between the members of the air filter. Since it must be attached, the number of parts of the Velcro (registered trademark) or the connecting member increases with the number of divisions of the air filter, and there is a problem that the manufacturing cost of the air filter increases.
[0009]
Therefore, according to the present invention, when a corresponding structure is adopted by dividing the air filter into a plurality of members when the space in the direction in which the air filter is pulled out is narrow, a part of the air filter remains behind the air conditioner. In addition, the air filter can be freely bent to the left and right sides with respect to the pull-out direction when the air filter is pulled out. An object of the present invention is to provide an air filter attachment / detachment structure for an air conditioner in which the number of parts for connecting members to each other does not increase even when divided into a large number.
[0010]
[Means for Solving the Problems]
Thus, the air filter attaching / detaching structure of the air conditioner according to the present invention includes a duct for air-conditioning the air taken in and blowing it out from a desired position in the vehicle compartment, and the duct disposed in the duct and flowing through the duct. An air conditioner comprising at least air conditioning means for appropriately air-conditioning, an air filter in which a first filter and a second filter having different performances are arranged side by side in a ventilation direction, and an opening for attaching / detaching the air filter In the air filter attachment / detachment structure, the air filter has a plurality of members made of only a part of the first filter by dividing the first filter side in the insertion direction from the opening, and the second filter is flexible. The members are connected so that the members can bend to the left and right by adhering all the side surfaces in the ventilation direction of the members. It has a (claim 1).
[0011]
Thereby, since each member which consists of a part of 1st filter is connected so that members can bend right and left mutually by the 2nd filter, isolation | separation of a member and a member from the opening part of an air conditioner is carried out. After the air filter is pulled out to the part, the air filter is bent by using the flexibility of the second filter, and the air filter is pulled out to the part where the member is separated from each other. Can be taken out from.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
The air filter structure of the air conditioner according to the present application is used, for example, in a civil engineering / construction machine 1 such as a shovel car as shown in FIG. 1, and as shown in FIG. An inlet 3 and an outside air inlet 4 are formed, and air conditioning means such as an inside / outside air switching device, a blower, a heater core, and an evaporator for appropriately adjusting the temperature of air taken from the air inlets 3 and 4 are accommodated. The air conditioning unit 2 is provided. For example, in the cab 1a, the air conditioning unit 2 is installed at a position near the side wall 1b of the cab 1a at the rear of a seat (not shown).
[0014]
In addition, a receiver tank 5, a condenser 6 and a compressor 7 which are connected to an evaporator (not shown) housed in the air conditioning unit 2 and constitute a refrigeration cycle are installed behind the cab 1a.
[0015]
Further, in order to blow out air conditioned by the air conditioning unit 2 from a predetermined position, a blower duct 8 having one end connected to the connection port 2a of the air conditioning unit 2 and a blower opening at the tip of the blowout duct 8 are provided. The outlets 9 and 9 are disposed in the cab 1a.
[0016]
Furthermore, a control switch 13 for controlling the air conditioner is disposed in the vicinity of a seat (not shown) in the cab 1a.
[0017]
As a result, the air taken in by the air inlets 3 and 4 is air-conditioned to an appropriate temperature by the air-conditioning means housed in the air-conditioning unit 2 and then blown out from the outlets 9 and 9 through the outlet duct 8. At the same time, this air conditioning control is performed by operating the control switch 13.
[0018]
As shown in FIG. 2, the air conditioning unit 2 is provided with box-shaped air filter storage portions 14 and 15 so as to cross the air inlets 3 and 4, and the air filter storage portion 14. , 15 are formed with air inlets 3 and 4 and openings 16 and 17 that open to the side wall 16 side of the cab 1a. The air filters 18 and 19 are disposed in the air filter storage portions 14 and 15 so that dust can be removed from the air sucked from the air inlets 3 and 4 and malodors can be removed. Yes.
[0019]
Among these, as shown in FIG. 3, the air filter 18 includes a first filter 20 for removing malodors composed of a thick plate made of activated carbon, and a second filter for removing dust formed of a nonwoven fabric or the like in a corrugated plate shape. 21 are bonded in the ventilation direction, and are divided in the insertion direction from the opening 3 to thereby provide two blocks 18a each having a part of the first filter 20 and the second filter 21. 18b.
[0020]
A predetermined interval is formed between the block 18a and the block 18b, and polyester or the like along all of the lateral outer peripheral surfaces except the opposing surfaces of the blocks 18a and 18b with respect to the ventilation direction. The tape 18a and 18b are connected by the tape 22 and at least about 30 using the distance between the blocks 18a and 18b. One block can be bent left and right with respect to the other block at an angle of degrees.
[0021]
By adopting the configuration of the air filter 18 described above, the member 18a and the member 18b are securely connected by the tape 22, so that the member 18a and the member 18b are released by the vibration of the vehicle body and the member 18a is pulled out. When this occurs, the member 18b does not remain in the air conditioning unit 2.
[0022]
Further, since the member 18a and the member 18b are connected by the flexible tape 22, the member 18a can be freely bent in both the left and right directions with respect to the drawing direction.
[0023]
Further, the number of tapes 22 does not increase depending on the number of divisions of the air filter 18, and the tape 22 remains substantially the same as the entire length of the air filter 18 itself. However, the manufacturing cost of the air filter 18 does not increase.
[0024]
Next, a procedure for taking out the air filter 18 from the opening 16 of the air filter housing part 14 of the air conditioning unit 2 when the air filter 18 having the above-described configuration is used will be described with reference to FIG.
[0025]
First, in FIG. 4 (a), the air filter 18 is shown in which the blocks 18a and 18b are in close contact with each other by bending the tape 22 that connects the members 18a and 18b, of which the block 18a is opened. Pull out from part 16. As a result, the bent tape 22 is stretched and only the block 18a is pulled out, and a part of the tape 16 comes out from the opening 16 as shown in FIG. 4B. Further, when the block 18a is pulled out, the block 18b connected by the tape 22 is also pulled out. When the block 18a is completely pulled out from the opening 16, as shown in FIG. 4 (c), the block 18a is moved to any direction from the left side to the right side with respect to the drawing direction, for example, 30 degrees. Bend to the angle of. Furthermore, when the block 18a is pulled out in the bent state, the block 18b connected by the tape 22 is also pulled out. When the block 18a is about to hit the side wall 1b, the bending angle of the block 18a is increased. This operation is repeated until the block 18b is completely pulled out from the opening 16. Thereby, the removal of the air filter 18 is completed. In order to attach a new air filter 18 to the air filter housing part 14 after removal, the air filter 18 may be inserted through the opening 16 by a procedure reverse to the procedure shown in FIGS. 4 (a) to 4 (c).
[0026]
Therefore, according to this embodiment, even if the air filter 18 is divided into a plurality of members, the intended purpose of easily removing the air filter 18 from the opening 16 can be sufficiently achieved.
[0027]
The structure of the air filter is not limited to the structure in which the member 18a and the member 18b are connected by the tape 22, and another example of the embodiment will be described with reference to FIGS. However, the structure of the vehicle in which the air filter 18 is used and the air conditioner thereof are the same as those in the above-described embodiment, and thus the description thereof is omitted.
[0028]
The air filter 18 shown in FIG. 5 has a first filter 20 for removing malodor formed of a thick plate made of activated carbon, and a second filter 21 for removing dust formed of a nonwoven fabric or the like in a corrugated plate shape. However, only the first filter 20 is divided in the direction of insertion from the opening 3 so that a part of the first filter 20 is formed. It has two blocks 18a 'and 18b' provided only with. A predetermined interval is formed between the block 18a ′ and the block 18b ′. The second filter 21 is a single unit having flexibility, and is attached to all the side surfaces in one ventilation direction of the block 18a ′ and the block 18b ′. As a result, the second filter 21 connects the blocks 18a ′ and 18b ′, and uses one of the blocks 18a ′ and 18b ′ at an angle of at least about 30 degrees with respect to the other block. It can be bent left and right.
[0029]
By adopting the air filter having the above configuration, the member 18a 'and the member 18b' are securely connected by the second filter 21, so that the member 18a 'and the member 18b' are separated by vibration of the vehicle body or the like. When the member 18a ′ is pulled out, the member 18b ′ does not remain in the air conditioning unit 2.
[0030]
Further, since the member 18a ′ and the member 18b ′ are connected to the second filter 21 having flexibility, the member 18a ′ can be freely bent in both the left and right directions with respect to the drawing direction.
[0031]
Furthermore, even if the air filter 18 is divided into three or more, the total length of the air filter 18 does not change. Therefore, the number and the total length of the second filters 21 attached over the entire side surfaces of the members 18a ′ and 18b ′ do not change. Even if the air filter 18 is divided into a large number, the cost of the second filter 21 that connects the members does not increase. In addition, since the tape 22 of the previous embodiment can be dispensed with, the number of parts can be reduced and the cost can be further reduced.
[0032]
Next, a procedure for taking out the air filter 18 from the opening 16 of the air filter housing part 14 of the air conditioning unit 2 when the air filter 18 having the above-described configuration is used will be described with reference to FIG.
[0033]
First, in FIG. 6 (a), the member 18a ', 18b' block 18a such as by site of the second filter 21 is folded connecting between ', 18b' is being air filter 18 is shown in a close state Of these, the block 18 a ′ is pulled out from the opening 16. As a result, the part of the second filter 21 that connects the folded members 18a and 18b expands, and only the block 18a 'is pulled out, and partly emerges from the opening 16 as shown in FIG. 6 (b). It becomes a state. Further, when the block 18a ′ is pulled out, the block 18b ′ connected by the second filter 21 is pulled out accordingly. Then, 'when it is a state where the drawn completely through the opening 16, as shown in FIG. 6 (c), the block 18a' block 18a in any direction of the left or right with respect to the drawing direction, e.g. Bend to an angle of 30 degrees. Furthermore, when the block 18a ′ is pulled out in the bent state, the block 18b ′ connected by the second filter 21 is also pulled out. When the block 18a ′ is about to hit the side wall 1b, the block 18a ′ is pulled out. The bending angle of 'is increased, and this operation is repeated until the block 18b' is completely pulled out from the opening 16. Thereby, the removal of the air filter 18 is completed. In order to attach a new air filter 18 to the air filter housing part 14 after removal, the air filter 18 may be inserted from the opening 16 by the procedure reverse to the procedure shown in FIGS. 6 (a) to 6 (c).
[0034]
Thereby, also in this embodiment, even if the air filter 18 is divided into a plurality of members, the intended purpose of easily removing the air filter 18 from the opening 16 can be achieved.
[0035]
Finally, in the embodiments described so far, the air filter 18 divided into two members 18a (18a ′) and 18b (18b ′) has been described, but the air filter divided into three or more members is also described. Of course, the present invention can be used, and the present invention can also be used for the air filter 19.
[0036]
【The invention's effect】
As described above, according to the air filter attachment / detachment structure of the air conditioner according to claim 1 , the members constituting the air filter are connected by adhering the second filter integrally formed on one side surface in the ventilation direction. Therefore, it is possible to prevent some members from remaining on the back side of the air conditioner. In addition, since the second filter is flexible, it can be bent freely on the left and right sides with respect to the insertion direction, so that the air filter can be easily attached and detached. Furthermore, since it connects with the 2nd filter comprised integrally over the ventilation direction side surface of each member which consists of 1st filters, the number of parts for connecting each member does not increase in proportion to the division | segmentation number of a member. , Cost increase can be suppressed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a structure of a civil engineering / construction machine in which an air conditioner according to the present invention is used.
FIG. 2 is a perspective view showing a structure of an air conditioning unit constituting the air conditioner of the above.
FIG. 3 is a perspective view showing a structure of an air filter housed in the air conditioning unit same as above.
FIGS. 4A to 4D are explanatory views showing a procedure for taking out the air filter shown in FIG.
FIG. 5 is a perspective view showing a structure of an air filter in which a second filter also serves as a connector for the first filter.
6A to 6D are explanatory views showing a procedure for taking out the air filter shown in FIG.
FIGS. 7 (a) and 7 (b) are perspective views showing the structure of an air filter that has already been developed to simplify the work of attaching and detaching an air filter composed of a plurality of members.
[Explanation of symbols]
2 Air Conditioning Unit 16 Opening 17 Opening 18 Air Filter 18a Block 18b Block 18a 'Block 18b' Block 19 Air Filter 20 First Filter 21 Second Filter

Claims (1)

A duct for air-conditioning the taken-in air and blowing it out from a desired position in the passenger compartment, an air-conditioning means for appropriately air-conditioning the air flowing in the duct disposed in the duct, and a first filter having different performance In the air filter attachment / detachment structure of the air conditioner comprising at least an air filter formed in parallel with the second filter in the ventilation direction and an opening for attaching / detaching the air filter,
The air filter has a plurality of members made of only a part of the first filter by dividing the first filter side in the insertion direction from the opening, and the second filter has an integrated configuration with flexibility. An air filter attaching / detaching structure for an air conditioner, wherein the members are connected so as to be able to bend to the left and right by adhering over all the side surfaces in the ventilation direction of the members.

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