KR20110052169A - Pad tray and base assembly for floor cleaner - Google Patents

Abstract

PURPOSE: A pad tray and a base assembly for a floor cleaner using the same are provided to maintain the function of pad attaching protrusions by integrally molding a first tray plate with soft protrusions in a hard second tray plate. CONSTITUTION: A pad tray(260) comprises first and second cover plates. Protrusions(265), in which a pad is attached, are formed on the first cover plate. The first cover plate is insert-molded on the second cover plate. The first cover plate is a soft plastic plate. The second cover plate is a hard plastic plate. A base assembly for a floor cleaner using the pad tray comprises a main body, a pad tray, a detaching member, a first tray plate, and a second tray plate. The main body is composed of upper and lower cases. Protrusions, in which the pad is attached, are formed on the pad tray. The detaching member is attached and detached the pad tray on/from the bottom surface of the lower case.

Description

Pad tray and base assembly for floor cleaner using the same

The present invention relates to a pad tray which prevents bending deformation by integrally molding a hard reinforcing tray board while inserting a soft pad attachment protrusion board, and a base assembly for a floor cleaner using the same.

As a conventional sweeper, for example, one disclosed in Korean Utility Model Utility Model Publication No. 20-0317923 has been proposed.

As shown in FIGS. 14 and 15, the sweeper according to this publication includes a housing 10, a rotating brush 20 rotatably installed by a drive motor 30 provided on one side of the housing 10, and a housing. The storage container 40 is detachably installed at the rear side of the 10 and a handle member (not shown) that is detachably coupled to the upper one side of the housing 10.

In the housing 10, a suction port 11 having a predetermined size is formed at a front lower side thereof, and a rotary brush 20 is disposed at the suction port 11. A coupling groove 12 is formed at one rear side of the housing 10, and a rotating piece 13 to which a handle member (not shown) is fitted is rotatably installed at one upper side of the housing 10.

The rotary brush 20 is disposed on the inlet 11 side of the housing 10 and is installed to be exposed to the outside through the inlet 11 so that a part thereof contacts the bottom surface. In addition, the rotary brush 20 is configured to receive the rotational driving force of the driving motor 30 provided on one side of the housing 10 through an indirect transmission mechanism 32 such as a belt, a chain, or the like. On the other hand, the operation of the drive motor 30 is made by the on / off signal of the operation switch 31 provided on the upper one side of the housing (10).

The storage container 40 is detachably coupled to the rear side of the housing 10, and preferably, at one front side of the storage container 40, a hook 42 is opened upward or downward by a push button 41. The hook 42 is coupled to and released from the coupling groove 12 formed on the rear side of the housing 10 so that the storage container 40 is detachably coupled to the rear side of the housing 10.

In addition, a predetermined guide groove 15 and a guide protrusion 43 may be selectively formed at the mutually coupled portion between the housing 10 and the storage container 40, and the lower portion of the housing 10 and the storage container 40. An appropriate number of wheels are provided on the surface. Preferably, the inclined surfaces 14 and 44 of the predetermined angle are respectively provided on the lower surfaces of the housing 10 and the storage container 40 so that foreign substances on the bottom surface collected by the rotary brush 20 are separated. It is collected completely into the storage container 40 without being.

According to the configuration of the housing 10 and the storage container 40 of such a conventional sweeper, when the rotary brush 20 sweeps up the foreign matter, ascend the inclined surface 14 to be stored in the storage container 40, but the rotary brush ( By the rotational force of 20), the foreign matter may flow back by the centrifugal force and come out again toward the suction port 11.

In addition, when the foreign matter on the rotary brush 20 does not fall, the function as a broom is falling and dirty.

On the other hand, there is proposed as a conventional steam combined sweeper disclosed in, for example, Korean Utility Model Publication No. 10-0402692.

Referring to FIGS. 16 and 17, the conventional steam combined sweeper has a tank 10 in which water is stored and heated by steam to generate steam, and a main body 30 in which wheels 20 are installed and moved. The front of the main body 30 is composed of a suction brush 40 sweeping the dirt of the bottom, the bottom surface of the main body 30 is attached to the removable mop 50, the suction brush 40 is It is coupled to the main body 30 rotatably by the axial support portion 42 formed in the transverse direction, one side of the axial support portion 42 is coupled to the wheel 20 and the belt 60 is interlocked with each other to rotate. The generated steam is ejected to the steam jet hole 12 to wet the mop 50 mounted to the main body 30.

By the way, when cleaning the carpet, because the projections to attach the mop 50 is caught by the hair of the carpet to damage, there is a limit that only floor cleaning is possible.

The present invention has been made to solve the above-described problems, the object of the present invention is to provide a pad tray which prevents the overall bending deformation while maintaining the function of the pad attachment projection as a separate unit according to the detachable and its base cleaner base assembly using the same. have.

In order to achieve the above object, the pad tray according to claim 1 of the present invention,

A first cover plate having protrusions to which pads are attached; And a second cover plate inserted into the first cover plate.

The pad tray according to claim 2 of the present invention,

The first cover plate is a soft plastic plate, and the second cover plate is a hard plastic plate.

The base assembly for floor cleaners of Claim 3 of this invention,

A main body having an upper case, a lower case having a suction port and a steam injection hole formed therein; A pad tray on which a projection to which the pad is attached is formed; It includes a detachable member for detaching the pad tray on the bottom of the lower case,

The pad tray includes a first tray plate in which protrusions to which a pad is attached is formed, and a second tray plate in which the first tray plate is inserted into the pad tray.

The base assembly for floor cleaners of Claim 4 of this invention,

The first tray plate is a soft plastic plate, and the second tray plate is preferably composed of a hard plastic plate.

The base assembly for floor cleaners of Claim 5 of this invention,

The detachable member includes a first detachable part protruding from the pad tray and having a locking groove formed at a side thereof, and a second detachable part mounted at a groove formed at a bottom of the lower case to be locked to the locking groove.

The second detachable part includes an elastic locking part accommodated in the groove and locked to the locking groove, and a support part fastened to the lower case and operatively supported by the elastic locking part.

As apparent from the above description, the pad tray and the floor cleaner base assembly using the same according to the embodiment of the present invention have the following effects.

By inserting the first tray plate having the soft protrusions and molding them integrally into the hard second tray plate, the overall bending deformation is prevented while maintaining the function of the pad attachment protrusions as a single part according to detachment.

The detachable member may include a first detachable part protruding from the pad tray and having a locking groove formed at a side thereof, and a second detachable part mounted at a groove formed at the bottom of the lower case to be locked to the locking groove. The second detachable part includes an elastic locking part accommodated in the groove and locked to the locking groove, and a support part fastened to the lower case and operatively supported by the elastic locking part to facilitate assembly / disassembly and to function as an elastic locking part. Can be maintained.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, where like reference numerals refer to like parts, and detailed description thereof will be omitted.

1 is a perspective view showing a separate steam sweeper according to a preferred embodiment of the present invention, Figure 2 is a perspective view of the combined steam sweeper removing the pad tray in Figure 1, Figure 3 is a bottom view of Figure 2, Figure 4 is a cross sectional view of FIG. 1.

As shown in Figs. 1 to 4, the steam combined sweeper of this embodiment includes a base assembly 100 and a push rod assembly provided to the base assembly. The push rod assembly may be implemented by a neck assembly 300 rotatably installed with respect to the base assembly 100 and a handle assembly (not shown) installed in the neck assembly 300.

The base assembly 100 includes a main body 110, a sweeping member 140 and a steam generating member 190 mounted on the front and rear sides of the main body 110.

The main body 110 is composed of a lower case 120 forming an external shape, and an upper case 130 coupled to the lower case.

In addition, the main body 110 has a sweeping mounting compartment 113 in which the sweeping member 140 is mounted at the front side around the partition 111, and a steam mounting compartment in which the steam generating member 190 is mounted at the rear side. Divided into 116.

The partition wall 111 is divided into a lower partition wall 111a on the lower case 120 side and an upper partition wall 111b on the upper case 130 side. In addition, the packing 112 may be installed between the lower partition 111a and the upper partition 111b.

As shown in FIG. 5A, a suction port 121 in which the brush part 150 is disposed is formed at a front side of the lower case 120 side sweeping mounting compartment 113a, and a brush part is disposed at left and right sides of the suction port 121. The lower brush holder support 123a to which the holder 152 for rotatably holding the 150 is mounted is formed.

On the rear side of the lower case 120 side sweeping mounting compartment 113a, a motor seating portion 171 on which the motor 160 is mounted is formed, and the left or right side of the lower case 120 side sweeping mounting compartment 113a is formed. The passage 125a in which the pulley 164 of the brush part 150 and the belt 166 which hangs over the pulley 162 of the motor 160 are arrange | positioned is formed.

In addition, between the suction port 121 and the motor seat 171, a dust collecting groove 127 in which the dust collecting chamber 200 is seated is formed.

The dust collecting seating recess 127 is formed of a stepped floor 127a, a front surface 128, a left and right side surface 127b, and a rear surface 127c protruding upward from the edge of the floor 127a.

The bottom side 127a is taken in the form where the front side is lower than the rear side.

The back surface 127c is preferably formed with a guide groove 127d for guiding the locker 250 to be described later.

In particular, the front surface 128 of the dust collecting slot 127 is preferably formed in the same slope as the inclined front plate 211 of the dust collecting container 200 described later.

That is, the front surface 128 is the primary inclined surface 128, the inclined front plate 211, the secondary inclined surface 211 forms one inclined surface, serves as an introduction portion of the dust.

At this time, the rubber partition plate 115 is further installed at the suction port 121 of the front side 128, and serves to block the bottom or the back of the foreign matter.

The steam outlet 129 is formed at the lower case 120 side steam mounting compartment 116a, and a rear wheel 118 is preferably installed at the rearmost center thereof.

In addition, it is preferable that the left and right front wheels 117 are mounted to the lower case 120 slightly behind the suction port 121.

It is preferable that the steam discharge cover 129a is fastened to the lower case 120 so as to distribute and discharge steam from the steam discharge port 129 to the left and right as a whole.

On the other hand, as shown in Figure 6a, the upper case 130 side sweeping mounting compartment 113b is formed with a through portion 131 corresponding to the suction port 121 and the dust collecting groove 127, the upper case The tank mounting groove 133 on which the tank assembly 192 is mounted is formed in the steam mounting compartment 116b on the side 130.

In addition, a motor mounting recess 135 and a PCB mounting recess 137 are formed between the rear plate 132 and the upper partition 111b of the through part 131 to accommodate the motor mounting unit 170 to be described later. All.

The upper brush holder support 123b for supporting the holder 152 from the left and right sides of the through part 131 is formed, and the lower passage 125a is disposed on the left or right side of the upper case 130 side sweeping mounting compartment 113b. An upper passage 125b corresponding to is formed.

The lower case 120 and the upper case 130 are fastened by a piece. In particular, a locking protrusion 119a is formed at the foremost side of the lower case 120, and a locking protrusion 119a is caught at the foremost side of the upper case 130. The jaw 119b is formed to improve the sealing force.

Sweeping member 140 is composed of a brush unit 150, and a rotational power transmission member for transmitting rotational power to the brush unit 150.

The brush unit 150 is composed of a rotation shaft 151 and a brush 153 provided on the rotation shaft 151.

Both rotating shafts of the rotary shaft 151 are rotatably supported by the holder 152. The holder 152 is stably held by the brush holder supports 123a and 123b.

The rotational power transmission member includes a pulley 162 formed on one side of the motor 160, the rotation shaft 151, and a belt 166 that extends over the pulley 164 provided on the rotation shaft of the motor 160.

Belt 166 is composed of a toothed timing belt, pulley 162 and pulley 164 is preferably implemented as a toothed pulley to engage the tooth.

The motor 160 is fastened to the lower case 120 by the motor mounting unit 170.

That is, the motor mounting unit 170 is fastened to the motor seating portion 171 formed in the lower case 120 and the lower case 120 so that the bottom surface of the motor 160 is seated to surround the upper surface of the motor 160. Supporting motor support frame 173 is included.

By such a configuration, the motor seating portion 171 and the motor support frame 173 may be easily wrapped to close the motor 160 to block noise.

In addition, since a force is applied to one side of the motor 160 by the belt 166, the support structure that cancels this force is improved to improve the durability of the rotating shaft of the motor 160. This can be achieved from two fastening structures, one on the left side and one on the right side of the motor fastening frame 176, as shown in FIG.

As shown in FIG. 8, the motor support frame 173 includes a motor body frame 174 having a heat radiating hole 174a, a plurality of contact ribs 175 formed on an inner surface of the motor body frame 174, and The motor fastening frame 176 extends from the motor body frame 174.

The contact ribs 175 are band-shaped along the circumference to make line contact with the outer circumferential surface of the motor 160, and the heat dissipation hole 174a is connected to the motor body frame 174 between the contact ribs 175 and the contact ribs 175. It is desirable to be formed to release the heat generated by the motor 160.

Motor fastening frame 176 is formed on both sides of the motor support frame 173, is fastened to the lower case 120 by a piece.

Motor seating portion 171 is preferably composed of a plurality of support ribs 172 supporting the bottom surface of the motor 160.

In addition, it is preferable that one side of the motor seat 171 is provided with a motor side support 171a that supports one end (near the rotating shaft) of the motor 160.

In addition, between the support rib 172 and the bottom surface of the motor 160, it is preferable that the dustproof pad 178 having a heat radiation hole 178a is interposed.

On the other hand, the dustproof pad 178 is preferably interposed between the motor seating portion 171 and the support rib 172.

In addition, it is preferable that the heat radiation hole 178a is also formed in the dustproof pad 178.

One side of the anti-vibration pad 178 is formed with a support cap 178b that is supported at one end of the motor 160 and is interposed between the motor one side support 171a and one end of the motor 160, thereby causing noise due to vibration. Will absorb.

As illustrated in FIG. 8, the dust collecting container 200 accommodated in the penetrating portion 131 and the dust collecting housing seating groove 127 includes a case 210 and a cover 230 for opening and closing the upper portion of the case 210. It includes.

The front of the case 210 is formed with an inlet 212 through which foreign matter sweeps in.

That is, the case 210 is composed of the front plate 211, the left and right side plate 213, the back plate 215 and the bottom plate 217, it is used as an outlet for cleaning the foreign matter accumulated in the open top.

The front plate 211 is made of the inclined front plate 211 as described above, serves to sweep the sweep.

Of course, the inlet 212 is disposed above the inclined front plate 211.

Guide protrusions 213a are formed in the left and right side plates 213, and guide grooves 131a are preferably formed in the left and right side plates of the through part 131.

The base plate 217 is implemented in a form that is seated on the floor 127a of the above-described step shape.

Therefore, since the front side 217a of the base plate 217 descends further down than the rear side 217b, it serves to compensate for the capacity reduced by the height of the inlet 212.

The cover 230 preferably includes a first cover 231 covering the upper portion of the case 210 and a second cover 233 extending forward from the first cover 231.

When the dust collecting container 200 is accommodated in the through part 131, as shown in FIGS. 4 and 9A, the second cover 233 covers the upper portion of the brush 153.

The cover 230 is preferably coupled to the case 210 by the hinge members 218 and 238.

That is, the hinge shaft 238 of the cover 230 is coupled to the hinge hole 218 of the case 210 is rotatable.

The hinge shaft 238 is formed between the first cover 231 and the second cover 233, the hinge hole 218 is preferably formed in the left and right plates 213 near the inlet 212.

Due to the position of the hinge shaft 238 and the hinge hole 218, when the state is opened in the closed state of Figure 9a as shown in Figure 9b, the first cover 231 opens the upper portion of the case 210 The second cover 233 contacts the inclined front plate 211 to block the inlet 212. On the contrary, when the first cover 231 is closed, the second cover 233 opens the inlet 212 side.

Therefore, even if the foreign material is turned over and emptied by holding the case 210 and the second cover 233, the foreign material does not leak toward the oil inlet 212 and is clean.

In addition, since the foreign matter is discharged through the upper and emptied, the collected dust does not leak other than the inlet 212, compared to the conventional dust collector (stacked dust falls into the gap and accumulates in the dust collector seating groove) to open and close to the bottom Pain relief seat 127 is clean.

On the other hand, as shown in Figure 4 is preferably formed on the bottom surface of the second cover 233 protruding jaw 240 protruding downward.

The protruding jaw 240 is implemented in the form of ribs protruding in the left and right directions, and serves to prevent foreign matters from being re-produced due to the rotation of the brush unit 150 (backflow phenomenon).

Therefore, foreign matters hitting the protruding jaw 240 may enter the inlet 212 again, or may further increase the efficiency of sweeping away between the inlet 212 and the brush unit 150.

In addition, as shown in FIG. 4, the bottom of the second cover 233 may further include an additional protruding jaw 242 positioned in front of the protruding jaw 240.

The additional protruding jaw 242 serves to blow dust on the brush 153, thereby further increasing the sweeping efficiency of the brush 153.

When the protruding jaw 240 or the additional protruding jaw 242 is formed as described above, the protruding jaws 240 and 242 are in contact with the inclined front plate 211 to replace the function of blocking the inlet 212.

The second cover 230 is preferably provided with a transparent cover 235 that can see the inside of the case 210.

The transparent cover 235 may be fitted to a portion protruding downward from the first cover 231, and a handle jaw 236 may be formed at a side thereof to pinch a finger.

On the other hand, it is preferable that the locker 250 for locking / unlocking the cover 230 with respect to the case 210 is installed.

The locker 250 includes a locking protrusion 251 formed on the cover 230 and a locking release part 253 for locking / releasing the locking protrusion 251.

The unlocking portion 253 is centered on the actuating piece 254, the hinge axis 255 and the hinge axis 255 which allow the actuating piece 254 to pivot about a hinge groove (not shown) of the back plate 215. And a locking jaw 257 formed above the operating piece 254 and the locking projection 215 is disposed, and a spring 259 disposed below the operating piece 254.

Therefore, when the operating piece 254 on the side with the spring 259 is pressed, the locking projection 251 is released while the locking jaw 257 is turned, and the locking projection 251 is pushed in when the locking projection 251 is pushed in. While pushing the upper surface of the operating piece 254 is pivoted while being engaged with each other to lock.

When the locker 250 is installed to protrude from the back plate 215, the guide groove 131b for guiding the rocker 250 may be formed in the back plate 132.

The steam generating member 190 is connected to the heater 191, a tank 193 in which water is in contact with the heater 191 to generate steam, and steam generated from the tank 193 to the steam discharge port 129. It consists of a connection pipe 195. Water may be injected into the tank 193 by a stopper 194.

In the space between the partition wall 111b and the back plate 132, a PCB 180 driving and controlling the steam generating member 190 and the sweeping member 140 is mounted.

Meanwhile, as shown in FIGS. 10 to 13, a pad tray 260 detachable by the detachable member 270 may be further added to the bottom surface of the lower case 120.

The pad tray 260 is used to separate the carpet and the like to clean the carpet, and to combine the pad tray 260 to clean the floor using steam.

The pad tray 260 is formed before, after, or before and after around the outlet holes 263 and the outlet holes 263 formed in the tray plate 261 in communication with the tray plate 261 and the steam discharge port 129. The pad attachment protrusion 265 is shape | molded.

The pad attachment protrusion 265 should be made of a soft plastic material (PP or PC series) so that the Velcro of the pad can be attached and detached well. Such a soft plastic material is hardly attached to the bottom of the lower case 120 due to the bending deformation when used as a single piece (that is, when it is detachably used as in the present embodiment). (The existing steam cleaner is fastened and fixed to the upper case, so it prevents the upper case from bending even if the pad attachment protrusion is molded in the soft plastic material on the lower case.)

Therefore, in the present embodiment, as shown in FIG. 12, first, the first tray plate pad attachment protrusion board 261a having the soft pad attachment protrusion 265 formed thereon is heat-resistant and made of soft plastic, and then the pad attachment protrusion is formed. After inserting the substrate 261a into the mold, the reinforcing tray plate 261b, which is weaker than the former and hard plastic (with a little glass fiber in PP or PC series), is formed. The second tray plate 261b of FIG. 12 is not provided separately and is a view for better understanding.

Therefore, although the pad tray 260 is a single piece, the reinforcement tray plate 261b can hold the pad attachment stone substrate 261a to bend, thereby keeping the flat state well.

The detachable member 270 includes a first detachable part 271 formed on the pad tray 260 and a second detachable part 275 installed on the lower case 120.

The first detachable part 271 includes a detachable groove 273 formed at a side surface of the protrusion 272 upward from an upper surface of the pad tray 260.

The second detachable part 275 includes an elastic locking part 277 accommodated in the groove 276 formed at the bottom of the lower case 120, and a support part 279 supporting the elastic locking part 277. have.

The elastic locking portion 277 is composed of a bottom plate 277a placed on the bottom of the groove 276 and an elastic locking piece 277b that is elastically deformable in the form of a cantilever in the bottom plate 277a. A long hole 277a 'is formed at the center of the bottom plate 277a, and the long hole 277a' is fitted to the long hole projection 277a '' formed in the groove 276 to determine its position.

The support part 279 is comprised of the support piece 279a which presses and supports the bottom plate 277a, and the fastening piece 279b which is fastened and fixed to the lower case 120, and supports the support piece 279a.

When the support piece 279a is hollow, it is preferable that an arrangement groove 279a 'on which the elastic locking piece 277b is operatively formed is formed in the support piece 279a.

The first detachable part 271 and the second detachable part 275 are located at the back of the pad tray 260 and the lower case 120, and a third detachable part is provided at the front of the pad tray 260 and the lower case 120. It is preferable that 274 be further formed.

The third detachable portion 274 is preferably composed of a protrusion 274a formed on the upper surface of the pad tray 260 and an insertion groove 274b into which the protrusion 274a is inserted. The projections 274a and the insertion grooves 274b are preferably in the shape of a three-dimensional trapezoid that is easily removable.

The pad tray 260 is preferably formed with a foot press plate 267 that the user can stand and press with his feet. Foot press 267 can also be separated by hand as well as foot.

As described above, although described with reference to a preferred embodiment of the present invention, the present invention can be variously modified or modified without departing from the spirit and scope of the present invention described in the claims Those skilled in the art will appreciate.

The present invention is not only the above-mentioned low water steam combined sweeper (only if the steam generating member in the body) but also spray type (when there is a steam generating member on the side of the straw) or gravity steam combined sweeper (when the steam generating member is on the straw or body) Applicable to

1 is a perspective view showing a separate steam combined sweeper according to a preferred embodiment of the present invention.

Figure 2 is a perspective view of the combined steam sweeper removing the pad tray in Figure 1;

3 is a bottom view of FIG. 2.

4 is a cross-sectional view of FIG. 1.

Figure 5a is a top perspective view of the lower case.

FIG. 5B is a top perspective view of the rotary brush and the power transmission member for rotating the rotary brush in FIG. 5A; FIG.

6A and 6B are bottom perspective views of the upper case.

Figure 7 is a perspective view showing the separation of the motor and the motor support frame.

8 is a perspective view showing the dust collector separated.

9A and 9B are sectional views showing a state in which the dust collecting container is closed and opened.

10 and 11 are bottom and top perspective views of the pad tray.

12 is a perspective view for explaining a step of manufacturing the pad tray of FIG. 11;

Figure 13 is a cross-sectional view showing the detachable member of the pad tray and the lower case.

14 is an exploded perspective view showing a conventional sweeper.

15 is a side cross-sectional view of FIG. 14.

Figure 16 is a perspective view of another conventional steam combined sweeper.

17 is a bottom view of FIG. 16.

<Explanation of symbols for the main parts of the drawings>

100: base assembly 110: main body

111,111a, 111b: bulkhead 112: packing

113,113a, 113b: sweeping mounting compartment 115: rubber partitioner plate

116,116a, 116b: steam installation compartment 117: front wheel

118 rear wheel 119a

119b: Jam Jaw 120: Lower Case

121: suction port 123a, 123b: brush holder support

125a, 125b: Aisle 127: Dust collecting seat home

128: front slope 1 129: steam discharge port

129a: steam distribution cover 130: upper case

131: through part 131a, 131b: guide groove

132: rear plate 133: tank mounting groove

135: motor mounting groove 137: PCB mounting groove

140: sweeping member 150: brush portion

151: rotating shaft 152: holder

153 brush 160 motor

162,164 Pulley 166 Timing Belt

170: motor mounting part 171: motor seating part

171a: motor one side support 172: support rib

173: motor support frame 174: motor body frame

174a: heat sink 175: contact rib

176: motor fastening frame 178: dustproof pad

178a: heat sink 178b: support cap

180: PCB 190: steam generating member

191: heater 192: tank assembly

193 tank 194 stopper

195: connection tube 200: dust collector

210: case 211: inclined front plate

212: inlet 213: left and right plates

215: back plate 217: bottom plate

218: hinge hole 230: cover

231: first cover 213a: guide protrusion

233: second cover 235: transparent cover

238: hinge axis 240: protruding jaw

242: additional protrusion jaw 250: rocker

251: locking projection 253: locking release unit

254: operation piece 255: hinge axis

257: locking jaw 259: spring

260: pad tray 261: tray plate

261a: pad attachment protrusions 261b: reinforcement tray board

263: drawing-out hole 265: pad attachment protrusions

267: foot press plate 270: removable member

271: first removable portion 272: projection

273: removable groove 274: third removable portion

274a: projection 274b: insertion groove

275: second removable portion 276: groove

277: elastic locking portion 277a: bottom plate

277b: elastic locking piece 279: support

279a: Supporting piece 279a ': Placement groove

279b: Fastener 300: Neck Assembly

Claims (5)

A first cover plate having protrusions to which pads are attached; A pad tray comprising a second cover plate inserted into the first cover plate. The method of claim 1, The first cover plate is a soft plastic plate, The second cover plate is a pad tray hard plastic plate. A main body having an upper case, a lower case having a suction port and a steam injection hole formed therein; A pad tray on which a projection to which the pad is attached is formed; It includes a detachable member for detaching the pad tray on the bottom of the lower case, The pad tray may include a first tray plate on which protrusions to which a pad is attached is formed, and a second tray plate inserted into the first tray plate, and a second tray plate inserted into the pad tray. The method of claim 3, The first tray plate is a soft plastic plate, The second tray plate is a hard plastic plate base cleaner for floor cleaners. The method according to claim 3 or 4, The detachable member includes a first detachable part protruding from the pad tray and having a locking groove formed at a side thereof, and a second detachable part mounted at a groove formed at a bottom of the lower case to be locked to the locking groove. And the second detachable part includes an elastic locking part accommodated in the groove and locked to the locking groove, and a support part fastened to the lower case and operatively supported by the elastic locking part.

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