TWI285158B - Blackboard eraser - Google Patents

Abstract

The present invention relates to a blackboard eraser, comprising: a case whose bottom having a first accommodating chamber; a brush installed on the bottom of the first accommodating chamber; a pad installed in the first accommodating chamber; a plurality of rollers rotatably connected to the pad; an erasing cloth surrounded on the rollers in circle so that the rollers are capable of sliding along the external side of the pad, wherein the internal side of the erasing cloth is in contact with the brush; a collecting box detachably installed on the top of the case and connected to the first accommodating chamber; a filtering bag installed in the collecting box; an exhaust fan installed at one side of the collecting box capable of inhaling the chalk dust in the first accommodating chamber into the collecting box through the filtering bad. Thus, through the sliding of the erasing cloth, the chalk dust adhering on the brush can be brushed down, and the chalk dust can be inhaled into the collecting box by the exhaust fan, making the blackboard eraser of the present invention a design with a good erasing effect that can be used easily without taking up too much space.

Description

1285158 V. INSTRUCTIONS (1) "~-----__ Technical Field of the Invention The present invention relates to a squeegee, and more particularly to a squeegee having a light-handling operation and a light-weight and space-saving effect. By. Guoliang [Prior Art] According to what we know, it is generally used to wipe the chalk structure of the blackboard. There are several types as follows: The shackle of the shovel-gray-type black strips can be prevented from being rolled up by the ring. In the absence of the chalk on the back side of the ring belt, such as the transmission of the belt, the belt between the black wheels is wiped. The brush of the rear roller forms a phase ash brush, as shown in the eighth, the bar, and the moving bar is embedded. Rubbing, or, by the roller, the opposite direction of the gray box 3 Z 1 is mainly rolled in to wipe the left side of the force, and by the rear roller and the rotation of the inside, 3 8 9 In the middle of the round, the right 7 bones will be moved and the left and right hair brushes for wiping will be rolled, so that this special No. 6 "wipe is provided with a concave belt, and the plate can be pressed to press the ends of the ring with the ends of the ring. The ring groove attached to the profit case can be set to increase the bristles and rubbing on the blackboard and its inner belt, and the structure is attached to the inner side of the wiper wheel, and the belt is driven on the inner side of the wiper. Rotate the wiper On the endless belt

1. Since the brush roller is in the form of an endless belt, when the contact surface is only in a straight line of gray, the number of rounds can be completely removed. The concave shape is so that the brush roller contacts the area, so brushing the chalk will wipe the chalk ash on the ring belt.

The wipe _ brought to the belt

Page 5 1285158 V. INSTRUCTIONS (2) Unsupported wiping ring makes the wiping 3, the board, and the down part to the gray box wheel in the middle of the brushing, part of the health. 2. As shown, the main body, and the intervening, and the other to the ball head, and the conventional patent lost: the effect of the wiping area of the part of the drooping belt is greatly reduced, and it is only collected by the brush roller. However, the chalk gray chalk chalk is applied to the 8th of the 7th recess. Only the fascia is rubbed on the squeegee. The squeegee will be sucked by the stencil. The user will protect the casing. The side is provided with a ball for the whole use to be tied in a groove shape, and the structure of the body and the case is further on the other side, because the system uses a wiping body to contact the blackboard. Significantly reduced due to contamination. 2. Since most of the chalk ash will touch the surface, and the suction side of the vacuum cleaner is connected, the effect of vacuuming is not good, and the dust ash duster on the front side of the wiper will inhale it. , the shape, which causes the part of the support of the roller to be broken when rubbing, the rubbing of the x is rubbed with a ring, and the chalk dust brush attached to the endless belt is used to wipe the brush and the brush. Move and scatter in the air into the body, and harm the human body 2 nickname "Dust-cleaning device". Use a plurality of spacers to fix a ventilated partition wall with a proper spacing for the vacant vacuum transmitter. However, the application has the following defects to wipe the chalk dust, so the effect of wiping the chalk dust to wipe it is attached to the interface of the wiper and the blackboard is set in one of the groove-shaped housings unless The suction of the vacuum cleaner is quite impossible to suck immediately

1285158

V. Description of invention (3)

3. Since the connection between the vacuum cleaner and the vacuum cleaner is connected by a connecting pipe, the connection pipe system increases the weight of the wiper and causes inconvenience in use, especially the setting of the connecting pipe interferes with the user wiping the blackboard. The action 'and the structure of the connecting pipe and the vacuum cleaner are also used to make use of the patent application filed by us. Application No. 9 1 2 2 1 5 4 7 "Improvement of the eraser structure", the patent applied by us The case has the following shortcomings: , , 1, when wiping is mainly provided by the wiping cloth to wipe the effect, but the chalk ash adhered by the wiping cloth when wiping is easy to be dispersed in the air due to the movement of the squeegee In the middle, the chalk ash is inhaled by the user, which is harmful to the health of the human body.

2, as shown in the fourth figure, although the fourth figure has a vacuum cleaner (8 〇) tube body (8 1 ) joined, vacuum cleaner (8 〇) power drive, located on or near the wipe (30) The chalk dust or dust that has been wiped is sucked into the vacuum cleaner (8 〇) via the pipe body (8 1 ), but it is connected to the vacuum cleaner (8 〇) by a pipe body (8 1 ). The upper body (8 1 ) increases the weight of the eraser and causes inconvenience in use. In particular, the setting of the official body (8 1 ) interferes with the user's action of wiping the blackboard. The inventors of the present invention have developed the present invention through long-term efforts in view of the drawbacks of the above-described conventional eraser structure and the design experience of many years of related products. & [Summary content]

1285158 V. INSTRUCTIONS (4) ^ ^ ^ & Ming is a type of eraser that includes an outer casing bottom: 1 brush is attached to the bottom of the first chamber 33, a block of 哕 = = =, a The plurality of rollers are rotatably coupled to the U-pad, and a U-cloth is wound around the plurality of rollers so as to be slidable around the outside of the block, and the wipe is wiped. The inner side is in contact with the mat J. The collection is detachably disposed on the top of the outer casing, and is connected to the first chamber, and a filter bag is further disposed in the collection box. The utility model is disposed on a side of the collecting box, and the first=to the chalk ash can be sucked into the collecting box through the filter bag; thus, the note is moved by the wiping cloth/monthly, and when the brush is passed The chalk ash that is attached to the ash can be brushed, and the ash can be sucked into the collecting box by the fan to make it have the effect of good effect, light operation and no duty.

2 Apply 2 sets of chambers 1 1 . Real C cloth collection ί C 9 case good brush to find a second hole number, please compare with the hair and the first one, please apply one of the 1 } mouth ί 1 Shen Zhi rub, ο open and have a case board} } 8 } Settlement Representation OOC. After the 11 Departments of the 2 Departments, the 16th part of the Ming Dynasty, the CC wind has a C-bottom, and the Liangfa body block is set to be the slot of the Shenhuan. One side is one, the bottom one is more than one person. Department 1 , } ••• has 1 吾经,有} ο中,定C according to J ο ο 7 } 则 室 室 擦 擦 擦 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 The wheel pad structure C and the 3rd main number ~ the structure of the first class, the formula 7 f knot, the shell}, the square hair 4 the fourth} o the external application 5 read, 09 the 13 real 1 }3{ (1 ί 2, for example, C box chamber C 1285158 5, invention description (5) 10) is in communication with the recessed groove (12), and the two side walls of the first chamber (1 1) are further provided There are two sets of opposite fixing holes (15), and the two grooves (12) are disposed on opposite sides of the groove (1 2 ), and the second chamber (12 0) is disposed opposite to each other. 1 3) is provided with a tuyere (1 30) communicating with the recessed groove (12), and a guide piece (14) is disposed on a side of the second chamber (13), and The top cover is provided with a cover body (16), and the cover body (16) is provided with a switch (17); the brush (20) is a sheet of a considerable area and is provided a through hole (1 1 0 ) at the bottom of the first chamber (11), and the brush is in contact with one side of the wiper (30); the four rollers (40) Each of the shaft bolts (60) is pivoted in the spacer (60) so as to be rotatable in the spacer (60), and the shaft bolt of the outermost roller (40) is inserted. (5 0 ) a slider (500) is respectively disposed at both ends, and one side of the slider (500) is a resilient member (5 1 ); the spacer (60) is two Side plates (62) are provided on the side for the two fixing bolts (52) to be fastened to the fixing holes (15) of the first chamber (11) of the outer casing (10), and The spacer (60) is further provided with four through slots (61) for the four rollers (40) pivoted thereon to partially protrude to the outside of the outer casing (10), and The side piece (6 2 ) is further provided with a chute (63) for sliding the slider (500) of the shaft bolt (50), and the chute ) And one of the sides 63 for the resilient element (51) abuts against the other end; the cloth (30), based on the form of the ring-shaped disposed around four rollers (4

1285158 5, invention description (6) 上), and 5 for the transfer, and can be detached; the gasket is in the outer casing (the wipe edge is worn black, the wind can be used and a wind can be utilized, and The battery in the middle of the battery is covered by a spacer (6 wiper (3 0 is bounded by the two sides of the two sides (0) (6 2 )) can slide around the outside of the spacer (60) 6 2 ) restricting it from being caused by the roller (4 0 to be slidably embedded in the housing by the charging electric charging socket). There is a collecting chamber embedded in the outer casing (1 (the air outlet of the (901) (1 has a ventable end) There is a (7010) blackboard board; fan (8 power piece force piece (82 connection (A) box (9 slots (1 (10 (90 10) 9 0 1 opening 3 0) filter fixing), The utility model is made of a soft material, which is sleeved on the opening wall edge of the first chamber (1 1 ), so that the gasket (70) can avoid the wiping of the board when operating, (81 8 1 )) provided to one side to charge it to 0), 2)), 1), and the (90th connection, bag (9 (91 system)) drive system has four power guides (if The side slippery (and the one of the collections has a chamber 3) is further provided by the 1), 0) for the second volume to be provided by the tuyere, and the electric (14) sixth figure is provided Groove 12 0) Collection box (room (90 hole (9 0 (11)) and the first collection chamber (the filter, the bag is fixed in the chamber (1 (13 on the second reservoir (6, shown)); (90, with 9 0) 1) 1 2), and in the second chamber 9 0 1 (91 collection chamber 3), 0) is pumping the chamber (1 3 2 ) and making it available for 0) An opening (901) for combining the middle portion to form a side opposite to be connected to the collection chamber (13)

Page 10 1285158 5, the description of the invention (7)) (please refer to it instead of rubbing it so that the wipe chamber (1 brush down. And at this time (8 0) by the outer shell (in the The set that won't be sucked) receives the appropriate detachment cleaning please refer to (6 〇) a top push the shaft check holding / #) on the wipe wipe. Please refer to the charging stand at 9 0 3). As shown in the fourth figure, when the wiping cloth (3 〇) is used to wipe the black contact surface with chalk dust, the side of the chalk cloth can be slipped by pushing the board cloth (30). Move to the inner side of the 1st) and make it pass by the brush (2 〇). If the switch (17) is the starting position, the fan will pass the filter bag (9 1 ) and the brush Dropped chalk ash 1 0) through hole (1 1 〇) inhalation collection box (90) chalk ash can be inserted into the exhaust fan (80) by the barrier of the filter bag (9 1 ), and when When collecting the box (90 equivalents of chalk ash, it can be made from the outer casing (1 〇). The fifth figure shows that when the board is rubbed, the roller (40) on the side of the block can be used by The slider (5 )) of the elastic element (5 1 ) (5 〇) acts to maintain the displacement of the telescopic element, and thus the sleeve is placed on the roller (4 〇 cloth (3 〇) can be used as usual There is a proper tension to facilitate the sixth chamber. The eraser can be placed on a charging stand (A) (A) and can be switched. When the switch is opened, the second chamber can be placed. Battery in ( 8 2) Providing another embodiment, the cover (16) can be covered by the outer casing (10. charging power)

Page 1285158 V. INSTRUCTIONS (8) The second chamber of the body (10) (for non-rechargeable type, when the battery (8 upper cover (16) is removed, replace 2). Another embodiment of the present invention can be used for wires After being passed through the circuit board, it can be plugged in and used with the electric board. Since the present invention has the following features, the present invention utilizes a brush (2 〇) to clean the inside of the powder and has The contact area of the spacer is a larger flat fruit. 2. Because the chalk dust wiped by the brush (30) is sucked into the collection box, the ash can be used. Directly set on the board, so use space. In summary, due to the advantages and practical value of the hair, it has been applied for. 13) 2) The second volume, the shell pool (8 special special advantages wipe 6 ash of the gray ash, the (20 series can be used as a large amount of absorption powder, the use of the above has a conformity, and the battery (for the use of electricity (1 3), the body 2 10 can be connected to 8 2) can be changed After the completion, the battery can be used (8 with one wire, the knot of the invention) Design, so in the actual cloth (3 〇) role, and it will support it, and when it has a lower brushing chalk, the fan is lighter and smoother by using a fan to clean the blackboard. And reach the wiping cloth (3 to make it with the blackboard to wipe the gray, and wipe (80) will enter too much chalk (80) and does not occupy the above requirements, according to careful design, the patent application

1285158 Simple description of the drawing [The first picture, the second picture, the third picture, the fourth picture, the fifth picture, the sixth picture, the main element (10) (110 (12 0 (13 0 (15) (17) (20) (40) (50) (51) (60) (62) (70) (80) (82) (90) Single Description] The top of the present invention is the bottom of the present invention. The three-dimensional external system of the present invention is a partial cross-section of the present invention. The partial cross-section of the present invention is described with reference to the refill symbol of the present invention.] outer casing) through-hole) slide rail) tuyere

fixed? L Switch Brush Roller Shaft Bolt Elastic Element Block Side Plate Gasket Fan Fan Battery Collection Box Body exploded view. Body decomposition diagram. Viewing. Surface map. Surface map. An exploded view of the use of the electric seat. (1 1 ) first chamber (1 2 ) slot (1 3 ) second chamber (14) guide (1 6 ) cover (3 0 ) wipe cloth (500 ) slider (5 2 ) Fixing bolt (6 1 ) slot (6 3 ) chute (8 1 ) power piece (900) slot

Page 13 1285158 Simple illustration (9 0 1) Collection room (9 0 3 ) Opening (910) Fixing part (9 0 2 ) Perforation (9 1) Filter bag (A) Charging stand

Claims (1)

% Province 2^3 wins §% (about the original one-one - 20539, the monthly amendment, the patent scope 2, as in the application of the scope of the first paragraph of the eraser, wherein the first room has a pass The hole is connected to the slot, and the collecting box is provided with a through hole communicating with the through hole. The squeegee according to claim 1, wherein the second chamber is provided with a tuyere. 4. The squeegee of the first aspect of the invention, wherein the two sides of the splicing groove are provided with two sliding rails, and two sides of the collecting box are also provided with two grooves. For slidingly embedding on the two sliding rails, the collecting box is coupled to the outer casing brush, the plurality of components, and the top surface is open, the second middle portion, and the parallel block; the roller protruding shaft bolt pivoting pad One side of the block and the sliding portion; the outer sliding force member of the cleaning block is driven in the first set box. A squeegee roller, one of which; the grooved chamber is attached to the squeegee block and fastened to the outer casing Body, on the side of the shaft inspection two pieces and the chute wipes are moved; the pumping is in the trough two chambers The main pad, the outer casing and the second embedding wiper are disposed on the outer portion, and one of the pieces includes a wiping cloth and a pair of a accommodating chamber, the inlaid phase; the one side of the hair; the outer casing The two ends of the first block are provided with a side end of each of the sliders and a ring-shaped winding around the plurality of rolling fans is disposed in the second air extracting device; The first fan and the first chamber of the lower opening of the collecting box, the groove system and the first chamber are respectively disposed in the first chamber, and the plurality of rollers are pivotally disposed in the mat chamber, and Each of the plurality of side systems is provided with a side piece for a sliding slot, and the pivoting portion is provided for sliding. The elastic element is disposed on the top wheel for being rotatable in the cushioning chamber, and may be A moving collection box is set in the chalk chamber of the inlaid chamber Page 15 In the number of rolling blocks, the two capacity pieces of the force set power box box: wherein the second piece is the second piece, the first type is 5, as described in claim 1 of the patent scope, wherein the double wheel Each of the shafts is pivoted in a block with a shaft bolt so that it can be rotated on the pad. 6. The eraser of claim 1, wherein the upper cover of the first chamber is provided with a cover, and the cover is provided with a switch for actuating the movement. 7. The eraser of claim 1, wherein the movement is a motor, and the second chamber is provided with a plurality of batteries to provide a motor η8, if the system is available, The method of patent separation is applied to the patent room of the patent room. The first capacity is 10, the guide charging stand 1 1 in the chamber; the material of the chamber is surrounded by the eraser of the first item, which is included in the embedded On the trough. The squeegee described in item 1 is a gas permeable filter bag for the inner compartment component and the first portion, so that the chalk ash of the first chamber can be charged by a plurality of systems. . Made on the open end edge of the patent application. One chamber communicates with the other, and the other part of the two chambers are exhausted through the suction collection box. The eraser 'battery of the range 7 is connected, and the outer casing/side electrical circuit is connected to the battery', and the two parts are combined with the first filter bag, wherein the guide is provided The eraser of the first aspect of the invention, the sleeve is provided with a gasket, and the cymbal is made of a soft one. 1285158 Case No. 93120539 Amendment 6. Patent application scope 1. 2. For the eraser as described in item 7 of the patent application scope, the battery can be changed to non-rechargeable type. When the battery is used for power supply, the upper cover can be removed and replaced. The battery in the second chamber. The squeegee of claim 7, wherein the outer casing can have a wire, and the wire can be connected to the battery through the circuit board, so that the squeegee of the invention can also be plugged in. Page 17