KR20150017285A - Air cleaner for vehicle - Google Patents

Abstract

The present invention relates to an air cleaner for a vehicle. A main objective of the present invention is to provide an air cleaner for a vehicle which has an improved door locking structure unaffected by temperature of an engine room and is capable of opening and closing a door and replacing a filter by a simple operation. To achieve the above purpose, the present invention provides an air cleaner for a vehicle which includes a filter assembly stored inside a case to remove foreign substance in the atmosphere; a case having a storage space of the filter assembly and an inlet/outlet for replacement; a door rotatably installed at the case to open and close the inlet/outlet of the case; an elastic member mounted between the door and the case to apply elastic restoration force in the opening direction of the door; and a locking means installed between the door and the case to lock the door at a predetermined closing position while unlocking the door by a one-touch operation of pressing and rotating the closed door.

Description

[0001] The present invention relates to an air cleaner for vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaner for a vehicle, and more particularly, to an air cleaner for a vehicle having an improved door locking structure that is not affected by the temperature of an engine room, .

2. Description of the Related Art Generally, an intake apparatus for an engine is an apparatus for supplying air to an engine required for a combustion process, and includes an air cleaner to remove foreign substances from the air sucked into the engine.

The intake air contains dust and fine impurities contained in the air. Therefore, when supplying the intake air to the cylinder of the engine, it should be supplied with the dust and impurities removed.

Therefore, an air cleaner for purifying the intake air required for the combustion process of the engine is mounted, and the air cleaner has a configuration in which a filter element is fixedly arranged in such a manner that a filter element is spanned or fitted between the upper case and the lower case.

The intake air introduced into the case through the duct is supplied to the engine through the air hose after passing through the filter element inside the duct so that the intake air from which foreign matter has been removed by the filter element is supplied to the cylinder, So as to prevent engine wear and the like.

On the other hand, since the filter element of the air cleaner needs to be periodically cleaned or replaced, an air cleaner capable of easily removing and mounting the filter element is required, and a filter element can be inserted and removed in a sliding manner inside the case The structure of the drawer has been presented.

In the prior art documents 1 and 2, a filter element of an air cleaner can be easily inserted and removed in a drawer type without disassembling the case, thereby facilitating the replacement work of the filter element .

However, in the air cleaner of the prior art documents 1 and 2, a drawer-shaped separate frame for fixing the filter element (prior art document 1: frame equipped with handle, prior art document 2: drawer case) is used and the filter element is mounted (Upper / lower housing or case) of the frame.

In addition, since the structure using a frame has a disadvantage in that the number of workpieces is large when the filter element is replaced, the filter element is removed from the frame after removing the frame from the case, the new filter element is mounted on the frame again, You have to push it.

In this process, in the air cleaner of the prior art document 2, the annular holder, which is the fixing means, needs to be released from the fixed state, and then replaced and fixed again.

In addition, since there is a directionality in which the filter element is mounted in a predetermined direction in the mounting direction of the filter element, there is a disadvantage that the convenience of the replacement operation is deteriorated.

The prior art document 3 discloses an air cleaner having a frame structure using a link means so as to easily perform a replacement operation of a filter assembly including a filter element. The air cleaner includes a door for opening and closing an entrance of a case, And a link means for interlocking with the rotation operation of the door so as to bring the filter element into close contact with or release from the case.

Further, the door is provided with a hook-shaped clamp integrally molded to maintain the closed state, and the door can be kept closed while the clamp is fastened to the latching jaw of the upper case.

And a gasket (rubber seal) which is provided so as to surround the engaging protrusion, wherein the gasket is provided on the outer surface of the frame, So that airtightness is maintained.

In the air cleaner of the prior art document 3, when the door is opened, the filter assembly can be easily removed from the case while the filter assembly is in close contact with the case, and then the new filter assembly is housed in the case and coupled to the link means When the door is closed, the filter assembly is automatically attached to the case while being fixed.

However, in the above-described air cleaner, when the temperature of the engine room rises, the clamping force of the plastic material is expanded by heat and the fastening force with the stopping jaw may be lowered. As a result, the door is opened by vibration or the like, There is a problem.

In addition, the process of opening the door by releasing the clamping jig is troublesome (a lot of air is required), and the joining protrusion and the gasket have not only a complicated joining structure but also a gasket (long in the longitudinal direction of the joining protrusion) And the link is so large that it is not easy to move the door and the link when opening the door (there is a feeling of tightness).

Prior Art Document 1: Korean Patent Laid-Open No. 1997-0011366 (July 7, 1997) "Filter Replacement Method of Air Cleaner" Prior Art Document 2: Korean Utility Model No. 20-0415807 (May 1, 2006) "Air Cleaner with Drawer-Type Air Filter for Automobile" Prior Art Document 3: Korea Patent Publication No. 2013-0061975 (June 13, 2013) "Air Cleaner for Vehicles"

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an air cleaner for a vehicle having an improved door locking structure that is not affected by the temperature of an engine room.

Another object of the present invention is to provide an air cleaner for a vehicle which can perform a door opening / closing operation and a filter replacement operation by a simple operation.

According to an aspect of the present invention, there is provided a filter assembly comprising: a filter assembly housed in a case to remove foreign matter in the air; A case having a storage space for the filter assembly and an entrance for replacement; A door rotatably installed in the case and opening and closing an entrance of the case; An elastic member mounted between the door and the case to apply an elastic restoring force to the door in the opening direction; And a locking means provided between the door and the case for locking the door in a predetermined closed position and releasing the door lock by one-touch operation for pressing and rotating the door in the closed position.

In a preferred embodiment of the present invention, the air cleaner for a vehicle according to the present invention may further include link means provided at both ends of the case and the door so as to be rotatable and interlocked with each other when the door is rotated to close or close the filter assembly.

Here, the link means may include a first link that is rotatably coupled to the case at one end; And a second link rotatably coupled to the first link and the door, respectively, so that the filter assembly is brought into close contact with the inner surface of the case when the door is closed.

And the second link pushes the coupling protrusion protruding from the frame of the filter assembly so that the filter assembly is brought into close contact with the inner surface of the case.

And a rubber seal for contacting the second link is provided at a portion of the longitudinal direction of the coupling protrusion at a portion of the coupling protrusion that is in contact with the second link, And protrusions are formed by protrusion.

The locking means is formed between a side surface of the case and a side surface of the door that surrounds the side surface of the case so as to perform selective door locking / unlocking depending on the rotational position of the door.

Further, the locking means is characterized in that when the door is closed, the door is locked by the one-touch operation of pushing and releasing the closed door by further pressing the door to the closed position.

The locking means may include protrusions protruding from the door. And a rotating body rotatably installed in the case and selectively rotatable, rotationally restrained and restrained by the protrusion in accordance with the rotational position of the door, wherein the rotating body is rotationally restrained by the protrusion of the door in the closed position And the door lock is performed when the door is in the closed state.

In addition, a locking cam for locking the protrusion of the door is formed on the rotating body, and the protrusion of the door pushes the side surface of the locking cam to rotate the rotating body, while locking the rotation of the rotating body by being locked to the locking cam .

The protrusion of the door further includes a pushing projection for pushing the side surface of the locking cam when the door is rotated to rotate the rotating body; And a locking protrusion for locking the locking cam against the side surface of the locking cam while pushing the side surface of the locking cam while rotating the door.

Here, the pressing protrusions and the locking protrusions sequentially push the side surface of the locking cam while the door is rotated in the backlash section that is pressed more than the closed position, thereby rotating the locking cam and the rotating body in one direction.

Further, the push rod pushes the side surface of the locking cam while the door is pushed in the closed position, and the locking protrusion is formed so as to push the side surface of the locking cam while the door is pushed in the closed position and rotated in the opening direction by the elastic member .

The locking cam is constituted by a protruding end of a protruding shape which is a portion to be locked with the locking protrusion and a groove portion which is formed between two adjacent protruding ends and which is a portion pushing the pressing protrusion and the locking protrusion, And a latching jaw is formed which is locked by the protruding end and locked in a locking manner.

In addition, the locking cam has a total of four protruding ends protruding along the side surface, and a total of four grooves formed between two adjacent protruding ends.

And the protruding end and the groove of the locking cam are symmetrically formed with respect to at least one axis passing through the rotation center of the locking cam.

The locking protrusion and the locking protrusion sequentially push one of the grooves positioned opposite to each other at intervals of 180 degrees from each other in the locking cam while the door is rotated in the backlash section where the door is pushed more than the closed position, thereby rotating the locking cam and the rotating body in one direction .

Accordingly, in the air cleaner for a vehicle of the present invention, the problem of the lowering of the fastening force of the door and the opening of the door due to the door locking structure that is not affected by the temperature of the engine room can be solved.

Further, in the air cleaner for a vehicle according to the present invention, the structure of the one-touch operation type which can lock / unlock the door by only one pressing operation of the door when the door is opened and closed can be applied.

Further, in the air cleaner for a vehicle according to the present invention, the damper structure (rubber seal and projecting portion) between the filter assembly and the link is improved, so that a high quality can be given when the door is opened.

1 is an assembled perspective view of an air cleaner according to an embodiment of the present invention.
2 is an exploded perspective view of an air cleaner according to an embodiment of the present invention.
3 is a bottom perspective view showing a filter assembly of an air cleaner according to an embodiment of the present invention.
FIG. 4 is a perspective view illustrating the state of a link closing means and a filter assembly in an air cleaner according to an embodiment of the present invention. FIG.
5 is a perspective view of a door open state for showing a configuration of a locking means in an air cleaner according to an embodiment of the present invention.
6 to 15 are operational states of the air cleaner according to the door position according to the embodiment of the present invention.
16 is a view showing an embodiment in which the shape of the locking protrusion is changed as another embodiment of the present invention.
17 is a perspective view showing the door in the embodiment shown in Fig.
18 is an operational state diagram according to the door position in the embodiment shown in Fig.
Fig. 19 is a diagram showing a state where a deviation occurs in the rotational direction at the rotational position of the rotating body in the embodiment shown in Fig. 16;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may properly define the concept of the term in order to best describe its invention And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

FIG. 1 is an assembled perspective view of an air cleaner according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of an air cleaner according to an embodiment of the present invention, FIG. 3 is a perspective view of a filter assembly of an air cleaner according to an embodiment of the present invention, Fig.

FIG. 4 is a perspective view illustrating the state of the filter assembly and the link assembly when the door is closed in the air cleaner according to the embodiment of the present invention, with the upper case being separated. FIG.

FIG. 5 is a perspective view of the air cleaner according to the embodiment of the present invention, showing the structure of the locking means. FIG. 6 to FIG.

The air cleaner 100 for a vehicle according to an embodiment of the present invention includes a filter assembly 120 housed in a case 110 to remove foreign matter from the intake air, A door 130 for opening and closing an entrance of the case 110 and a filter assembly 120 housed in the case 110 interlocked with the door 130 when the door 110 is rotated, A locking means 140 for closing or unlocking the door 130 to the door 130, an elastic member (reference numeral 150 in FIG. 6) for applying an elastic restoring force to the door 130 in the opening direction, And a locking means (160) for releasing the door lock state by a pressing operation which further presses the door (130) in the closed position in the closing direction.

The filter assembly 120 includes a filter element 121 and a frame 122 for fixing the filter element 121. A coupling protrusion 123 protruding laterally from the upper end of the side surface of the frame 122, (See Figs. 3 and 4).

The coupling protrusion 123 is elongated forward and rearward along the left and right side portions of the frame 122. The rubber seal 124 having a predetermined size is provided on the lower surface of the frame coupling protrusion 123, The protrusion 125 is integrally formed in the remaining portion of the lower surface of the coupling protrusion 123 where the rubber seal 124 is not provided.

The lower surface of the frame engaging protrusion 123 on which the rubber seal 124 and the protrusion 125 are provided is a surface on which the link means 140 contacts and supports the filter assembly 120 when the door 130 is closed, The second link 142 of the link means 140 to be described later is brought into contact with and supported by the frame surface to be firmly fixed to the inner side surface of the frame member 110.

In the present invention, the improved structure of the rubber seal and the protruding portion and the action and effect thereof are related to the operating state of the door and the link means, and will be described in detail later.

The case 110 includes an upper case 111 and a lower case 112 which are fastened and coupled by fastening means. The upper case 111 is formed with a discharge port 115 through which an air hose is connected, In the case 112, a suction port 114 to which a duct is connected is formed.

The filter assembly 120 is mounted and disposed in the inner space of the case 110, that is, in the storage space formed by the upper case 111 and the lower case 112, The air is passed through the filter assembly 120 inside the case 110 and then supplied to the engine through the air hose to remove foreign matter from the air while the intake air passes through the filter element 121 of the filter assembly 120.

In addition, the upper and lower cases 111 and 112 have front and rear door openings for opening and closing the filter assembly 120, respectively.

The door 130 is rotatably coupled to the outer surface of the case 110 through a lower hinge coupling part 131 and rotates up and down around the hinge coupling part 131 at the lower end to open / .

Both ends of the door 130 and the case 110 are rotatably coupled to the inner surface of the door 130 and the inner surface of the case 110 to form a link unit 140 interlocked with the rotation of the door, At this time, the two link means 140 having the same configuration are provided on the left and right sides of the filter assembly 120 housed in the case 110.

Each link means 140 includes a first link 141 having a lower end rotatably coupled to an inner surface of the case, a rear end rotatably coupled to an upper end of the first link 141, And a second link 142 rotatably coupled to the inner side (see Figs. 2 and 4).

The first link 141 in the case 110 is disposed in a substantially vertical direction at a position close to the case side face 116 and the second link 142 inside the case 110 is disposed in the case side face 116. [ And the rear end portion is rotatably coupled to the first link 141 and the front end portion is rotatably coupled to the door 130.

The second link 142 is a link for closely adhering the filter assembly 120 to the inner surface of the case 110 when the door 130 is closed. The second link 142 is disposed long in the substantially horizontal direction inside the case, And the lower end of the folded portion is hingedly coupled to the door 130 so as to be rotatable.

When the door 130 is opened, the second link 142 is pulled forward by the door so that the first link 141 rotates forward about the hinge-coupled portion with the case by the second link 142 When the door 130 is closed, the second link 142 is pushed rearward by the door, so that the first link 141 is rotated in the opposite direction about the hinge engaging portion by the second link 142, that is, And the rearward rotation is performed.

When the door 130 is opened, the second link 142, which has been horizontally disposed horizontally in the longitudinal direction, is pulled forward by the door and tilted downward. When the door is closed, the second link 142 is lowered by the first link 141 The second link 142 having the rear end supported thereon is pushed rearward by the door and rises again to be in a horizontal state.

The link means 140 is operated in conjunction with the opening and closing operation of the door 130 and functions to raise or lower the filter assembly 120 housed in the case 110 And the filter assembly 120 is tightly fixed to the inner surface of the case 110 in a state in which the door 130 is closed.

At this time, the second link 142 rising upward lifts the frame engaging protrusion 123 of the filter assembly 120 to come into close contact with the inner surface of the case 110.

When the door 130 rotates in the opening direction and the second link 142 begins to descend, the pressing force of the second link is released, so that the filter assembly 120 is released from the fixed state.

The filter assembly 120 is slidably inserted into the case 110 when the door 130 is completely opened in the air cleaner 100 of the present invention. 120) is raised on the inner engaging surface (the surface where the frame bottom edge portion is hooked and held) of the case 110 (lower case).

In this state, when the door 130 is closed (rotated in the closing direction), the upper surface of the second link 142 ascending in conjunction therewith comes into contact with the lower surface of the frame engaging protrusion 123, The second link 142 is lifted up the filter assembly 120. As a result,

The upper surface of the second link 142 ascending in conjunction with the closing operation of the door 130 lifts up the frame assembly protrusion 123 to raise the entire filter assembly 120, (142) and the filter assembly (120) together.

When the door 130 is completely closed, the second link 142 presses the frame engaging protrusion 123 upward, so that the upper surface of the frame is positioned inside the case 110 (upper case) And the position of the filter assembly 120 can be completely fixed.

Also, since the second link 142 is pulled forward and descends while the door 130 is opened (while being rotated in the opening direction), the filter assembly 120 supported by the second link is also coupled to the case 110 And is slightly lowered after the tightly fixed state is released.

The lower surface of the filter assembly 120 first touches the inner engaging surface of the case 110 (lower case), and the second link 142 is moved to the filter assembly 120, and is further pulled down by the door.

As a result, when the door 130 is completely opened, the front end of the second link 142 including the folded portion is completely pulled out by the door and protrudes out of the case 110. At this time, when the user pushes the filter assembly 120 So that it can be removed from the case.

Next, the elastic member 150 and the locking means 160 are used to implement a one-touch operation mode in which the door can be locked / unlocked only by an operation of pressing the door 130 once to open and close the door In the air cleaner 100 of the present invention, door lock, unlocking and door opening processes are automatically performed by the elastic member 150 and the locking means 160 by only one-touch operation of the door 130 Such a door one-touch operation method increases the convenience of the user.

Here, in the one-touch operation mode, once the door 130 is closed and released, the door lock is released and the door is automatically opened. When the door is closed, the door is further pressed to pass through a predetermined closing position If you release it, it means that the door locks automatically.

In the present invention, the door opening / closing operation is an operation in which the door 130 is rotated to open or close the door of the case 110.

The closed position of the door means a predetermined position in which the door closes the case entrance. The door is locked by the locking means at the closed position, and is held in the locked state until another pressing operation is applied The door is in the closed position.

Hereinafter, it should be noted that the closed position defined for clarity in this specification includes both the door position at which the lock is made, and the door position at the same position as the lock position, even if it is unlocked.

Further, the air cleaner of the present invention requires an operation of further pressing the door at the closed position for opening and closing the door. Hereinafter, the air cleaner of the present invention is referred to as " backlash " Section.

When the door 130 is further pressed in the closed position during the one-touch operation, the door rotates in the backlash section. In the backlash section, the door is rotated in the opening direction after the pressing operation is released. 150 "). ≪ / RTI >

The elastic member 150 is provided between the door 130 and the case 110 so that the door 130 is automatically rotated in the opening direction without external force. Thereby providing an elastic restoring force.

The elastic member 150 serves to automatically open the door 130, and also serves to restore and rotate the door, which is pushed when the door is closed, from the backlash section to the closed position.

The elastic member 150 may be a coil spring mounted on the left and right angular hinge joint portions 131 of the door 130 and having one end and the other end fixed to the door 130 and the case 110, The door is deformed so as to have an elastic restoring force when the door is rotated in the closing direction, and the door in which the external force action or the locking action (locking action) is released is rotated in the opening direction by the elastic restoring force.

Next, the locking means 160 automatically locks and locks the door so that the door in the closed position is not rotated in the opening direction when the door 130 is rotated to close, while the door is locked in the closed position The lock of the door is automatically released.

The locking means 160 is formed between the door side surface portion 132 and the case side surface portion 116 formed so as to enclose the outer side surface of the case side surface portion 116. The locking means having the same configuration is provided on the right and left side surface portions of the door, And is installed between both side portions.

Each of the locking means 160 includes protrusions 161 and 162 protruding from the inner side surface of the door side surface portion 132 and rotatably mounted on the outer side surface of the case side surface portion 116, (163).

According to the locking means 160 having such a configuration, the rotator 163 is selectively rotated, constrained, and released by the protrusions 161 and 162 depending on the rotated position of the door 130, The door lock is performed when the door is in a rotationally restrained state by the projection 162 of the door 130 in the closed position.

The protrusions 161 and 162 contact the side surface of the locking cam 164 to push the locking cam 163 to rotate the rotation body 163 and at the specific rotation position of the set rotation body 163, 164 to lock the rotation of the rotating body 163 and fix the position of the door 130. [

In the preferred embodiment, the projection has two protrusions formed on the door side surface portion 132, that is, a pushing protrusion 161 for pushing the side surface of the locking cam 164 when the door is rotated to rotate the rotating body 163, And a locking protrusion 162 that is locked in a locking manner on the side surface of the locking cam 164 while pushing the side of the locking cam cam 164 and rotating the locking protrusion 162. The pressing protrusion 161 and the locking protrusion 162 are locked And is arranged so as to be disposed at a position opposed to the cam 164.

The locking protrusion 162 is formed with a locking protrusion 162a for locking the protruding end 165 of the locking cam 164 to prevent the protrusion 162a of the locking cam 164 from protruding from the locking protrusion 162. [ The locking projection 164 and the rotation body 163 are constrained so as not to be rotated by the locking projection 162 due to the engagement between the locking projection and the locking cam, The locking cam 162 is locked to the locking cam 164.

Since the pressing protrusion 161 and the locking protrusion 162 are formed on the door 130, when the door is rotated, the two protrusions rotate the locking cam 164 or lock the locking protrusion 162, The rotation of the rotating body 163 in which the locking cam 164 is formed is interlocked or the locking between the locking cam 164 and the locking protrusion 162 is performed.

Since the locking protrusion 162 is formed on the door 130, when the locking between the locking protrusion 162 and the locking cam 164 is performed, the rotation of the rotating body 163 is restrained, So that the door lock state is established.

The relative positions of the pressing projections 161 and the locking protrusions 162 relative to the locking cam 164 are changed according to the position of the door so that each protrusion pushes the locking cam while slidingly contacting or the distance between the protrusion and the locking cam .

The locking cam 164 has a protruding end 165 having a protruding shape and a concave groove 166 formed therein so that the pressing protrusion 161 and the locking protrusion 162 are sequentially brought into contact with the groove 166 The locking protrusion 162 of the locking protrusion 162 is engaged with the protruding end of the locking protrusion 162 of the locking protrusion 162. When the lock protrusion 162 is locked, The locking between the locking protrusion 162 and the locking cam 164 is achieved.

More specifically for the locking cam profile shape, the locking cam 164 may have a symmetrical shape with respect to at least one axis passing through its center of rotation, wherein a total of four protruding ends 165 along the side are symmetrically A total of four grooves 166 may be formed symmetrically with respect to one another between the adjacent protruding ends 165. In other words,

Only two protruding ends, which are located in opposite directions (arranged at approximately 180 degrees apart from each other) among the entire protruding ends 165, are caught by the latching protrusions 162a, thereby locking the locking protrusions 162, If one of the two protruding ends 165 fixed at the time of closing the door is hooked on the locking protrusion 162a of the locking protrusion 162 to lock the door 130, then when the next door is closed, One is hooked on the latching jaw 162a and locked.

This is because the rotary body 163 rotates 180 ° until the door 130 is opened and then closed again in the door closed state.

The two projections 161 and 162 rotate the rotating body 163 in only one predetermined direction and each projection 161 and 162 pushes the locking cam 164 through the groove 166 to rotate the rotating body 163 The two protrusions 161 and 162 are alternately brought into contact with each other while the door 130 is opened to push the locking cam 164 once and then the two protrusions 161 and 162 are alternately brought into contact with each other in the same order while the door 130 is closed Thereby pushing the locking cam 164 once.

While the door 130 is once opened and closed, the protrusions 161 and 162 contact the locking cam 164 twice (push the locking cam) to rotate the rotating body 163, and both the door opening and closing The pushing protrusion 161 contacts the groove 166 of the locking cam 164 first so that the rotating body 163 is rotated in a predetermined direction in the backlash section during a period in which the door 130 is further pushed in the closed position, And then the locking projection 162 comes into contact with the other groove portion 166 of the locking cam 164 to further rotate the rotating body 163 by the remaining portion.

When the door closing locking protrusion 162 pushes the locking cam 164 to rotate the rotating body 163 and the protruding end 165 of the locking cam is caught by the locking protrusion 162a of the locking protrusion, From this moment the additional movement of the door 130 and the locking protrusion 162 causes the protruding end 165 of the locking cam 164 to engage with the locking protrusion 162a of the locking protrusion 162 The lock state is maintained until it comes out.

When the door 130 is to be opened in the closed state of the door and the door is pressed into the backlash section, the pressing projection 161 and the locking projection 162 are moved in the opposite directions (The two projections come into contact with each other in succession) while pushing the locking cam 164 (rotation of the locking cam and the rotating body is performed).

When the door 130 is closed in the door open state and the door is pressed in the backlash section in order to lock the door, the pushing protrusions 161 are formed in the remaining two groove portions 166 (short groove portions in the drawing) (Two projections come in contact with each other) while pushing against the locking cam 164 (rotation of the rotating body).

In other words, among the four grooves 166, the long grooves are used for opening the door (each projection is in contact with and pressurized in the door backlash section), and the short grooves in the figure are used for door closing (in the door backlash section, The protrusion is contacted and pressurized), and the long groove portion is also used for the purpose of avoiding interference between the locking projection and the locking cam on the movement locus of the locking protrusion 162 when the door is opened and closed.

The pushing protrusions 161 and the locking protrusions 162 push the two groove portions 166 located in the opposite directions of the intervals of about 180 degrees (the protrusions successively touch and push one by one) The pressing projection 161 always contacts the groove 166 while the door 130 is further pressed in the closed position so that the locking cam 164 and the rotating body 163 rotate in the same direction, While the locking protrusion 162 rotates in the opening direction by the restoring force of the elastic member 150 after the door 130 is pushed further than the closed position (when the door is rotated toward the closed position, ) Groove portion 166 to rotate the locking cam 164 and the rotating body 163.

The operation state of the door opening / closing process will be described with reference to FIGS. 6 to 15. FIG.

Figs. 6 to 11 show the state from when the door is closed to the time when the door is opened. Fig. 12 to Fig. 15 show the state after the door is closed in the door open state of Fig. 11 until the door lock is performed after passing through the back- State.

6, in a state where the door is closed and locked, one protruding end 165 of the locking cam 164 is engaged with the locking protrusion 162a of the locking protrusion 162, so that the locking protrusion 162 and the locking cam 162, (164).

In this state, the locking cam 164 and the rotating body 163 are restrained by the locking protrusion 162 of the door 130 and are not rotated. Since the door is also restrained by the locking cam and the protruding end 165 and is not rotated , The position of the door is completely fixed to the closed state.

When the door is to be opened, the door 130 is pressed to rotate in the backlash section as shown in FIG. 7. At this time, the locking protrusion 162 is lowered in the drawing, The protruding end 165 of the locking cam 164 is disengaged from the jaw 162a.

At the time when the locking projection 162 is separated from the projecting end 165 of the locking cam 164, the pressing projection 161 comes into contact with the long groove 166 of the locking cam, The locking protrusion 162 is spaced apart from the locking cam 164 of the rotating body 163 and the pressing protrusion 161 is moved away from the locking cam 164 as shown in Fig. The long groove portion 166 is pushed to rotate the locking cam 164 and the rotating body 163 in the clockwise direction in the drawing.

8, when the locking state of the door 130 is released (the user releases his / her hand from the door) in a state where the locking cam 164 is rotated, the door 130 is reversed due to the elastic restoring force of the elastic member 150 (The counterclockwise direction in the drawing), so that the locking protrusion 162 comes into contact with the long groove portion 166 of the locking cam 164 as shown in Fig.

When the door 130 is further rotated in the opening direction, the locking protrusion 162 pushes the long groove 166 of the locking cam 164 to rotate the locking cam 164 and the rotating body 163 clockwise The locking protrusion 162 is not interfered by the locking cam 164 as shown in Fig. 10, and only the door 130 is rotated in the opening direction thereafter. Finally, as shown in Fig. 11 The door 130 is fully opened as shown.

When the door 130 is opened from the state of FIG. 10 to the state of FIG. 11, the second link 142 is pulled by the door 130 to be forwardly moved and simultaneously descended. Even when the door 130 is completely opened 11, the front end of the second link 142 is projected to the outside through the entrance of the case 110.

The filter assembly 120 supported by the second link 142 in the case 110 during the descent of the second link 142 is coupled with the second link 142 10 shows a state in which the frame engaging protrusions 123 of the filter assembly 120 are lowered together while being supported by the second link 142. FIG.

10, when the door 130 is further opened and the second link 142 is further lowered, the filter assembly 120 first contacts the inner surface of the case 110, and while the door 130 is continuously opened The second link 142 is spaced apart from the frame engaging projection 123 of the filter assembly 120 and then further lowered, resulting in the state shown in FIG.

After the filter assembly 120 has been replaced, if the door 130 is to be closed again in the state of FIG. 11, the door 130 is rotated to the closed position and then, as shown in FIGS. 12, 13 and 14 You have to press again until the backlash interval.

The locking projections 161 and the locking protrusions 162 rotate the locking cam 164 and the rotating body 163 in the backlash section and finally the locking protrusions 162 are again rotated by the locking cam 164 Locked state (the rotating body and the door locked state) shown in Fig.

In order to close the door 130, the door 130 is rotated up to the closed position in the state of FIG. 11 and then the door is further pressed. When the door 130 enters the backlash section, as shown in FIG. 12, (161) first comes into contact with the short groove portion (166) of the locking cam (164).

13, the pressing projection 161 pushes the short groove portion 166 to rotate the locking cam 164 in the clockwise direction in the figure. In the state of Fig. 13, The door 130 is rotated in the opposite direction, that is, in the opening direction (the counterclockwise direction in the drawing) by the elastic restoring force of the elastic member 150 from this time, when the pressing state of the door 130 is released do.

When the door 130 rotates in the opening direction, the locking protrusion 162 comes into contact with the short groove 166 of the locking cam 164 as shown in FIG. 14, and the door 130 is opened in the backlash section The locking protrusion 162 pushes the short groove portion 166 of the locking cam 164 to rotate the locking cam 164 in the clockwise direction in the figure.

15, when the door 130 reaches the closed position, the protruding end 165 of the locking cam 164 is caught by the locking protrusion 162a of the locking protrusion 162, do.

6 and 15 show door locking states in which the protruding ends 165 of the locking cams 164 are equally engaged in the locking protrusions 162a of the locking protrusions 162. However, The protruding ends 165 of the locking cam 164 engaged with the locking protrusions 162a of the locking protrusions 162 in Figs. 6 and 15 are positioned at 180 占 intervals The protruding ends 165 are different from each other.

Further, until the state of Fig. 6 is reached in Fig. 15, the locking cam 164 and the rotating body 163 are rotated by 180 degrees.

11, when the door 130 is in the position shown in FIG. 12, the second link 142 is raised to lift the filter assembly 120 upward. In the final closed state of FIG. 15, The pressing member 142 presses the frame engaging protrusion 123 of the filter assembly 120 to completely fix the filter assembly to the inner side surface (engaging surface) of the case 110.

When the door is pressed to open or close the door 130 and the door is pushed backward by the backlash interval (during the state of FIG. 6, and during the state of FIG. 12 and FIG. 15) The second link 142 moving in conjunction with the filter assembly 120 is in slide contact with the frame 122 of the filter assembly 120.

That is, as the second link 142 moves, the upper surface of the second link comes into sliding contact with the lower surface of the frame 122 of the filter assembly 120, and the opening and closing of the door 130 is smooth and easy It is necessary to minimize the frictional force when the slide contact is made.

A member that acts as a damper is required between the second link 142 that is contacted after the door is opened and closed and the frame coupling protrusion 123 of the filter assembly 120. When the door 130 is closed, 100 are required.

A rubber seal 124 sealing the inner side of the air cleaner 100 when the door 130 is closed can be installed only on a lower side of the frame engaging protrusion 123 of the filter assembly 120 (See FIG. 3).

In the conventional air cleaner (refer to the prior art document 3), the rubber seal (gasket) is installed long along the longitudinal direction along the frame coupling protrusion. However, in this case, the frictional force with the second link becomes excessive.

Therefore, in the air cleaner 100 of the present invention, the rubber seal 124 is provided on the bottom surface of the frame coupling protrusion 123 to be smaller than a predetermined size, A frame-like protrusion 125 is formed in a section of the frame engaging protrusion 123 where the seal 124 is not provided.

The rubber seal 124 that contacts the second link 142 is installed only in a part of the frame engaging protrusion 123 and not on the entire section of the frame engaging protrusion 123. The remaining part of the rubber seal 124 is provided with the protrusion 125 integrally formed with the frame 122 The frictional force can be reduced when the door 130 and the link 142 are moved, and the opening and closing of the door can be smoothly performed during one-touch operation.

Meanwhile, as another embodiment of the present invention, it is possible to change the shape of the locking protrusion 162 as follows to improve the operability when the door 130 is closed.

FIG. 16 is a view showing an embodiment in which the shape of the locking protrusion is changed as another embodiment of the present invention, and FIG. 17 is a perspective view showing the door in the embodiment shown in FIG.

It is possible to form the locking protrusion 162 formed on the inner side surface of the side part 132 of the door 130 in the shape of a long elongated structure, A locking protrusion 162a for locking the protruding end 165 of the locking cam 164 is formed.

The shape of the locking protrusion 162 prevents the rotating body 163 from rotating at an abnormal angle when the door 130 is opened.

That is, the shape of the locking protrusion 162 prevents the rotating body 163 from rotating at an abnormal angle due to the influence of flow, gravity or the like when the door 130 is opened. When the door 130 is opened The locking protrusion 162 regulates the rotation angle of the rotating body 163 at an appropriate angle.

When the locking means 160 is installed between the left and right side portions 132 of the door 130 and the left and right side portions 116 of the case 110 as described above, When the rotating body 163 rotatably provided on the left and right side portions 116 of the case 110 is rotated due to the influence of flow, gravity or the like and is not in a normal rotation angle and is abnormally rotated, The locking cam 164 of the rotating body 163 may be positioned at a position where it interferes with the movement of the protrusions 161 and 162 on the locus of movement of the protrusions 161 and 162 when the cams 130 and 130 are closed again.

In this case, even if the door 130 is closed, the rotating body 163 including the locking cam 164 can not be rotated by the pushing projection 161, The door locking function which is a basic function of the locking means 160 including the door locking function can not be performed.

Particularly, when the two rotors 163 provided on the left and right side portions 116 of the case 110 are not simultaneously in the same rotational position and rotational angle range, locking can be performed only on one side, Can not.

The door 130 is opened while the door 130 is opened or completely opened, in order to stably close the door 130, rotate the rotator 163 properly, and securely fix the door 130 The locking protrusions 162 are formed so that the two rotating bodies 163 on both sides can maintain a normal state (a state in which they can be normally rotated by the pushing projections) within the same rotation position and rotation angle range, It is more preferable that the shape of the protrusion is formed to be elongated as shown in Fig. 16 to Fig.

The shape of the locking protrusion 162 may be adjusted by regulating the rotational position and the rotational angle of the locking cam 164 and the rotating body 163 while the door 130 is opened and while the door 130 is fully opened, The locking cam 164 and the rotating body 163 are appropriately guided during the opening and closing of the locking cam 164 and the rotating body 163 and the movement of the locking cam 164 and the rotating body 163 is stably controlled.

The shape of the locking protrusion 162 is controlled by synchronizing the two rotors 163 on both the left and right sides of the door 130 so that the door 130 is opened and closed, So that the rotating body 163 exhibits the same motion with each other.

The locking protrusion 162 is provided at least a part of the longitudinal direction of the locking protrusion 162 while the door 130 rotates in the opening direction and the closing direction, And preferably has a substantially arc shape centered on the hinge engaging portion 131 which is the rotation center of the door 130, which is always located at a side position of the locking cam capable of restricting rotation.

FIG. 18 is an operational state diagram according to the door position in the embodiment shown in FIG. 16, and the operating state at the time of opening / closing the door is not much different from the operating state of the embodiment described above with reference to FIGS. 6 to 15, It will be omitted.

The locking protrusion 162 is elongated to guide the rotation position and the rotation angle of the locking cam 164 while regulating the rotation of the locking cam 164 while the door 130 is opened and closed so that the locking protrusion 162 At least a part of the entire longitudinal direction of the locking cam 164 is located at the lateral position of the locking cam 164.

Thus, the two rotors 163 on both the left and right sides can be within substantially the same rotational position and rotational angle range without large deviation from each other in the rotational position and rotational angle, and the rotation of the rotational body 163, So that it can be properly guided to the state always defined by the protrusion 162.

Fig. 19 is a diagram showing a state where a deviation occurs in the rotational direction at the rotational position of the rotating body in the embodiment shown in Fig. 16;

19A shows a state in which the locking cam 164 and the rotating body 163 maintain the normal rotation position and the rotation angle. FIG. 19B shows a state in which the locking cam 164 and the rotating body 163, (C) shows a state in which the locking cam 164 and the rotating body 163 are rotated in the counterclockwise direction more than in (a), respectively.

The rotation direction deviations of the two rotors 163 on both the left and right sides including the locking cam 164 are reduced by the locking protrusion 162 having a long arc shape in the basic state and even in the state of (b) and (c) 30 can be stably closed and even if the door 130 is repeatedly opened and closed, the locking projection 163 and the rotation angle of the rotating body 164 are always set by the locking projection 162 So that it can be constantly controlled at an angle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. And various modifications and variations are possible within the scope of the appended claims.

100: air cleaner 110: case
111: upper case 112: lower case
114: inlet 115: outlet
116: case side portion 120: filter assembly
121: Filter element 122: Frame
123: coupling protrusion 124: rubber seal
125: protrusion 130: door
131: hinge coupling part 132: door side part
140: link means 141: first link
142: second link 150: elastic member
160: locking means 161: pushing projection
162: locking protrusion 162a:
163: Rotating body 164: Locking cam
165: protruding end 166:

Claims (20)

A filter assembly housed in the case to remove foreign matter from the air;
A case having a storage space for the filter assembly and an entrance for replacement;
A door rotatably installed in the case and opening and closing an entrance of the case;
An elastic member mounted between the door and the case to apply an elastic restoring force to the door in the opening direction; And
A locking means provided between the door and the case for releasing the door lock by one-touch operation of locking the door at a predetermined closed position and pressing and rotating the door at the closed position;
And an air cleaner.
The method according to claim 1,
Further comprising a link means provided at both ends of the case and the door so as to be rotatable and interlocked with each other when the door is rotated so that the filter assembly is in close contact with or close to the case.
The method of claim 2,
The link means
A first link rotatably coupled to the additional case; And
A second link rotatably coupled at both ends to the first link and the door to close the filter assembly to the inner surface of the case when the door is closed;
And an air cleaner for the vehicle.
The method of claim 3,
And the second link pushes the coupling protrusion protruding from the frame of the filter assembly so as to bring the filter assembly into close contact with the inner surface of the case.
The method of claim 4,
A rubber seal which is in contact with the second link in the coupling protrusion is provided in a part of a longitudinal section of the coupling protrusion in the longitudinal direction and a protrusion Wherein the air cleaner is formed by protruding the air cleaner.
The method according to claim 1,
Wherein the locking means is constituted between a case side surface portion and a door side surface portion surrounding the case side surface portion so as to perform an optional door lock / lock release according to the rotational position of the door.
The method according to claim 1,
Wherein the locking means is configured to lock the door by one-touch operation of pushing and releasing the closed door by further pushing the closed door to the closed position when the door is closed.
The method of claim 1, 6, or 7,
The locking means
A protrusion formed on the door;
A rotatable body rotatably installed in the case and selectively rotatable, rotationally restrained and restrained by the protrusion according to a rotational position of the door;
Wherein the door lock is made when the rotating body is rotationally restrained by the projection of the door in the closed position.
The method of claim 8,
A locking cam protrudingly formed on the rotation body for locking the protrusion of the door,
Characterized in that the protrusion of the door pushes the side surface of the locking cam to rotate the rotating body while being locked to the locking cam, thereby restricting the rotation of the rotating body.
The method of claim 9,
The protrusion of the door
A pushing projection for pushing the side surface of the locking cam when the door is rotated to rotate the rotating body;
A locking protrusion that pushes the side of the locking cam to rotate when the door is rotated, while locking the locking cam in a locking manner on the side surface of the locking cam;
And an air cleaner for air cleaner.
The method of claim 10,
Wherein the pushing projection and the locking projection are configured to sequentially push the side surface of the locking cam while rotating the locking cam and the rotating body in one direction while the door is rotated in the backlash section that is pressed more than the closed position.
The method of claim 11,
The push rod pushes the side surface of the locking cam while the door is pushed in the closed position and the locking projection is formed to push the side surface of the locking cam while the door is pushed in the closed position and rotated in the opening direction by the elastic member Features an air cleaner for vehicles.
The method of claim 10,
Wherein the locking cam is composed of a protruding end of a protruding shape which is a portion where locking with the locking protrusion and a groove portion which is formed between two adjacent protruding ends and which is a portion pushing the pressing protrusion and the locking protrusion,
Wherein the locking protrusion is formed with a latching jaw which is locked by a protruding end of the locking cam in a locking manner.
14. The method of claim 13,
Wherein the locking cam has a total of four protruding ends protruding along the side face and a total of four groove portions formed between two adjacent protruding ends.
15. The method of claim 14,
Wherein the protruding end and the groove of the locking cam are symmetrically formed with respect to at least one axis passing through the rotation center of the locking cam.
16. The method of claim 15,
While the door is rotated in the backlash section that is further pressed than the closed position, the pushing protrusions and the locking protrusions sequentially push one of the grooves positioned opposite to each other at 180 DEG intervals in the locking cam to rotate the locking cam and the rotating body in one direction And the air cleaner for vehicle.
The method of claim 10,
Wherein the locking protrusion has a shape elongated so as to regulate the rotating body and the locking cam at a prescribed rotational position and rotational angle.
18. The method of claim 17,
Wherein the locking protrusion is elongated so as to have a shape of arc centering on a hinge coupling portion which is a rotation center of the door.
18. The method of claim 17,
Characterized in that the locking protrusion has an elongated shape such that at least a part of the longitudinal direction of the locking protrusion is located at a side position of the locking cam capable of restricting the rotation of the locking cam while the door is rotated in the opening direction and the closing direction Car air cleaner.
18. The method of claim 17,
Wherein a locking protrusion is formed at the tip end of the locking protrusion so as to be locked by a protruding end of the locking cam in a locking manner.

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