Patent Publication Number: US-2005120564-A1

Title: Scraper

Description:
BACKGROUND OF THE INVENTION  
      1. Field of the Invention  
      The present invention relates to a scraper, and more particularly to an improved scraper capable of scraping impurities off the glass or ceramic tile, which also can be used to cut the tape.  
      2. Description of the Prior Arts  
      A conventional scraper normally has a main body integrally made by method of ejection molding. As shown in  FIG. 1 , a blade  20  is put on a compression surface  11  of the main body  10  of a scraper, and then clasp  144  is used to engage a clasp seat  113  of the main body  10 , and thus the blade  20  can be hold by a cover  14  of the main body  10 . This conventional scraper has been widely used, however, there are still some defects will appear in operation and need to be improved as follows:  
      First, when the clasp  144  of the cover  14  is engaged with the clasp seat  113  of the main body  10 , the clasp  144  partially protrudes out of the clasp seat  113  of the main body  10 , such that, in operation, the user has to hold the main body  10  and make the blade  20  contact a surface to be scraped with higher angle, as a result, it is difficult for the user to scrape smoothly, and thus the surface will probably be scratched.  
      Second, when it is being used, the blade  20  should be turned to make its sharp edge extend toward the main body  10  of the scraper, however, if the user forgets to do so, the sharp edge will probably hurt the user.  
      The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional scraper.  
     SUMMARY OF THE INVENTION  
      The primary object of the present invention is to provide a scraper, when the clasp of the locking cover is engaged with the clasp seat, the clasp can be fully received in the clasp seat of the main body. By such arrangements, the blade is able to contact a surface to be scraped with lower angle, and thus the surface can be scraped smoothly and cleanly.  
      The secondary object of the present invention is to provide a scraper, wherein a recess is defined on a handle portion of the main body of the scraper for the reception of the blade, such that the blade can be received in recess after operation, so as to safeguard the user from being hurt.  
      The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which shows, for purpose of illustrations only, the preferred embodiment in accordance with the present invention. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       FIG. 1  is a side view of a conventional scraper;  
       FIG. 2  is an exploded view of a scraper in accordance with the present invention;  
       FIG. 3  is a side assembly view of the scraper in accordance with the present invention;  
       FIG. 4  is a partial exploded view of a scraper in accordance with the present invention, wherein in a recess of the scraper is defined with a spring;  
       FIG. 5  is an operational view of the scraper in  FIG. 3 . 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
      Referring to  FIG. 2 , a scraper in accordance with a preferred embodiment of the present invention generally comprises a main body  10  and a blade  20 .  
      The main body  10  includes head portion  11 , neck portion  15  and handle portion  16 . Wherein the head portion  11  is defined with a compression surface  111  at a front edge thereof, on the compression surface  111  is formed with three locating legs  112 . And a clasp seat  113  is provided at a side of the compression surface  111  and forms a receiving space  114  with respect to a bottom surface  19  of the main body of the scraper. A wall  12  is adjacent to the compression surface  111  and provided with two protrusive blocks  121 . At another side of the compression surface  111  is provided with an arbitrarily bendable connecting portion  13  which is connected with a locking cover  14 . The locking cover  14  has a compression side  141 , and on which is formed with three locating grooves  142  in corresponding to the locating legs  112  on the main body  10 . The compression side  141  is formed with a pair of gaps  143  which correspond to the protrusive blocks  121  of the main body  10 . The locking cover  14  is further provided at another side thereof with a clasp  144  which is defined with a locking block  145  at a side thereof. At a front edge of the locking cover  14  an arc surface  146  is formed as shown in  FIG. 3 . Along the connecting portion  13 , the locking cover  14  can be folded up against the compression surface  111  of the head portion  11 , and the clasp  144  of the locking cover  14  is engaged with the clasp seat  113  of the head portion  11  in a manner that the locking block  145  of the clasp  144  is received in the receiving space  114  of the clasp seat  113 . The neck portion  15  is connected with the head portion  11  and the handle  16  of the main body  10 . At the left and right sides of the neck portion  15  is formed with a concave surface  151 , and at a lower and an upper surfaces of the neck portion  15  is formed with a sunken surface  152  respectively. The concave surface  151  and the sunken surface  152  of the main body of the scraper are embossed with anti-skid devices for improving grip. The neck portion  15  is further defined with through holes  153  on a surface thereof. On the handle portion  16  a recess  161  is defined, and at a side of the handle portion  16  is formed with a locking seat  162  that forms a receiving space  163  relative to the bottom surface  19  of the main body  10 . At another side of the handle portion  16  an arbitrarily bendable linking portion  17  is formed and connected with a side of a cover  18 . At another side of the cover  18  is provided with a retainer  181  that has a locking block  182  formed at a side thereof. Along the linking portion  17 , the cover  18  can be folded up against the handle portion  16  and fixed to the locking seat  162  of the handle  16  in a manner that the locking block  182  of the retainer  181  is received in the receiving space  163  of the locking seat  162 . In addition, an arc surface  191  is formed at a front edge of the bottom surface  19  of the main body  10  of the scraper.  
      The blade  20 , defined with locating holes  22  at a center and both sides thereof, is to be put on the compression surface  111  of the main body  10  in a manner that the respective locating legs  111  insert through the respective locating holes  21  of the blade  20 .  
      Referring further to  FIGS. 2 and 3 , when the clasp  144  of the locking cover  14  engages the clasp seat  113  of the main body  10 , the locking block  145  of the locking cover  14  is fully received in the receiving space  114  of the clasp seat  113 , in this way, the clasp  144  will not protrude out of the clasp seat  113  of the main body  10  of the scraper. Furthermore, at the front edge of the bottom surface  19  of the main body  10  and the locking cover  14  are provided with arc surfaces  191  and  145 . Thus, the user is able to scrape smoothly with the main body  10 .  
      On the handle portion  16  of the main body  10  a recess  161  is formed thereof for the reception of the blade  20 , so as to prevent the user from being cut. Furthermore, a shallow groove  164  can be formed at the bottom of the recess  161 , in which a spring  30  is provided, such that it is convenient for the user to take the blade  20  out of the recess  161  as shown in  FIG. 4 .  
      At the left and right sides of the neck portion  15  of the main body  10  is formed with a concave surface  151 , and at a lower and an upper surfaces of the neck portion  15  is formed with a sunken surface  152  respectively, as shown in  FIG. 5 , such that the user can more firmly hold the main body  10  of the scraper. The through hole  153  in the neck portion  15  enables the scraper to be stringed together with other tools or keys.  
      While we have shown and described various embodiments in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.