Abstract:
A disassembling tool for an air hose is proposed. The tool has two pivotally connoted members. When drawn together, the two members jointly provide at least one air-hose hole that allows the air hose to pass through. By using the tool to press upon a joint of an air compressor, the air hose assembled in the air hose can be easily disassembled from the joint.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Technical Field 
         [0002]    The present invention relates to a tool that facilitates disassembling an air hose from a joint of an air compressor. 
         [0003]    2. Description of Related Art 
         [0004]    Referring to  FIGS. 1 and 2 , a conventional joint  10  provided on an air compressor comprises a hollow fixing member  11  fixedly attached to a body of an electromagnetic valve of the air compressor, an airtight ring  12  received in the hollow fixing member  11 , a hollow positioning member  13  fixed in the hollow fixing member  11  and abutting on the airtight ring  12 , a retaining ring  14  positioned in the hollow positioning member  13  and having resilient hooks  141 , and an ejection member  15  shiftably set in the positioning member  13 . To assemble the conventional joint  10  with a flexible air hose  16 , the air hose  16  pierces through the ejection member  15  and reach the positioning member  13 . Then when passing by the retaining ring  14 , the air hose  16  pushes the resilient hooks  141  outward so that the air hose  16  pierces through the airtight ring  12  and abuts on the fixing member  11 . Afterward, the resilient hooks  141  return to the initial positions thereof and engage the air hose  16 . To disassemble the air hose  16  from the joint  10 , the ejection member  15  is firstly pushed inward the positioning member  13  so that a pushing end  132  of the positioning member  13  pushes the resilient hooks  141  outward to disengage the air hose  16  and then the air hose  16  can be withdrawn from the joint  10 . 
         [0005]    However, once the air compressor is actuated and the air pressure therein gets increased, the air hose filled with air becomes expanded and hardened rendering increased tightness of the combination of the airtight ring  12 , the resilient hooks  141 , the positioning member  13  and the ejection member  15 . As a result, it would be a difficult task to disassemble the air hose  16  from the joint  10  because the ejection member  15  has an annular surface  151  too small in area for a user to push barehanded to surmount the afore said tight combination. One traditional solution is to implement a screwdriver or a vise to press the ejection member  15 , and forcibly pull the air hose  16  outward at the same time. The traditional solution nevertheless has some defects. 
         [0006]    First, the prerequisite of the traditional solution is that the ejection member  15  provides enough area for the hand tool to thrust. 
         [0007]    Even the ejection member  15  provides enough area, the above-mentioned screw driver or vise tends not to exert a pressure evenly over the ejection member  15 , thus causing the ejection member  15  moving bias and the resilient hooks  141  opened asymmetrically. As long as any of the resilient hooks  141  does not disengage the air hose  16 , the air hose is still caught by the retaining ring  14 . 
         [0008]    At this time, if the air hose  16  is forcedly pulled outward, the airtight ring  12  and the resilient hooks  141  may be damaged, and even the operator may get hurt. 
       SUMMARY OF THE INVENTION 
       [0009]    In view of the shortcomings of the prior art, the present invention herein provides a tool that facilitates disassembling an air hose from a joint of an air compressor. The tool evenly distributes a pressing force from an operator thereof to an ejection member of the joint, so as to make the air hose fully disengaged from all components inside the joint. By the disclosed tool, even when the air compressor is actuated and the air pressure in the air hose gets increased, an operator is enabled to safely and easily disassemble the air hose from the joint while both the joint and the air hose are better protected from being damaged under forced disassembling operation. 
         [0010]    The disclosed disassembling tool for an air hose comprises: a first member, and a second member pivotally connected with the first member through a pin, wherein a plurality of semicircular first recesses are provided at surfaces of the first and second members facing each other and each of the first recesses is opened at two laterals of the first member or the second member, whereby when the first member and the second member are drawn together with the first recesses thereon combined mutually, each two said combined first recesses form an air-hose hole. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0011]    The invention as well as a preferred mode of use, further objectives and advantages thereof will be best understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying drawings, wherein: 
           [0012]      FIG. 1  is a perspective view of a conventional joint of an air compressor holding an air hose; 
           [0013]      FIG. 2  is a sectional view of the conventional joint with the air hose assembled therein; 
           [0014]      FIG. 3  is a front perspective view of a disassembling tool of the present invention; 
           [0015]      FIG. 4  is a rear perspective view of the disassembling tool of the present invention; 
           [0016]      FIG. 5  is a schematic drawing showing the disassembling tool disassembling the air hose from the joint in a first operation mode; and 
           [0017]      FIG. 6  is a schematic drawing showing the disassembling tool disassembling the air hose from the joint in a second operation mode. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0018]    While a preferred embodiment is provided herein for illustrating the concept of the present invention as described above, it is to be understood that the components in these drawings are made for better explanation and need not to be made in scale. Moreover, in the following description, resemble components are indicated by the same numerals. 
         [0019]    Please refer to  FIGS. 3 and 4  for a disassembling tool of the present invention. The disassembling tool  20  comprises a first member  23  and a second member  24  pivotally connected with each other through a pin  21 . A plurality of semicircular first recesses  25 ,  26  are provided at surfaces  231 ,  241  of the first and second members  23 ,  24  facing each other. Each of the first recesses  25 ,  26  is opened at two laterals of the first member  23  or the second member  24 . Thus, when the first member  23  and the second member  24  are drawn together with the first recesses  25 ,  26  thereon combined mutually, each two said combined first recesses  25 ,  26  form an air-hose hole  51  (as shown in  FIG. 5 ). The pin  21  is received in pivot holders  31 ,  32  at rear ends  233 ,  243  of the first member  23  and the second member  24 , so that the first member  23  and the second member  24  are allowed to pivot against the pin  21  and move with respect to each other. A pair of second recesses  27 ,  28  are lengthwise provided at the surfaces  231 ,  241  of the first member  23  and the second member  24 . Each of the second recesses  27 ,  28  has one end opened at a front end  234  or  244  of the first member  23  or the second member  24  and an opposite end opened to the adjacent first recess  25  or  26 . 
         [0020]    In the first member  23  and the second member  24 , the two laterals  232 ,  242  and surfaces of the front ends  233 ,  243  are perpendicular to the surfaces  231  and  232  so that the two laterals  232 ,  242  and surfaces of the front ends  233 ,  243  act as pressing surfaces to push the ejection member  15  (as shown in  FIG. 6 ). Magnets  40  are settled in the first member  23  and the second member  24  near the front ends  233 ,  243  thereof so as to hold the first member  23  and the second member  24  together with magnetism. 
         [0021]    According to the present embodiment, each of the first member  23  and the second member  24  had three said first recesses  25  or  26  and one said second recess  27  or  28 . The three first recesses  25  or  26  of the same member  23  or  24  may be formed into different sizes so that the resulting air-hose holes  51  can be formed for matching the air hose  16  of different diameters. Meanwhile, the second recesses  27  and  28  are diametrically smaller than the first recesses  25  and  26  having the smallest size. 
         [0022]    The joint  10  of the air compressor as depicted in  FIG. 1  and described with respect to the prior art reappears in  FIGS. 5 and 6  for explaining how the disclosed disassembling tool  20  works. 
         [0023]    Referring to  FIG. 5 , in a first operation mode of the disassembling tool  20  to disassemble the air hose  16 , the first member  23  and the second member  24  are firstly pulled apart so that the air hose  16  can be put between the first member  23  and the second member  24  parallel with the first recesses  25 ,  26 . Then the air hose  16  is settled in one said pair of first recesses  25 ,  26  that match the air hose  16  in diameter. Afterward, when the first member  23  and the second member  24  are drawn back together, the magnets  40  make the first member  23  and the second member  24  stay together under magnetic attraction. At this time, an operator can use one hand to push the disassembling tool  20  toward the ejection member  15  along the direction indicated by the arrow A in  FIG. 5  to make the lateral  242  or  232  touch and then push the annular surface  151  of the ejection member  15  so as to thrust the ejection member  15  move toward the positioning member  13 , and use the other hand to pull out the air hose  16 . 
         [0024]    Referring to  FIG. 6 , in a second operation mode of the disassembling tool  20  to disassemble the air hose  16 , the first member  23  and the second member  24  are firstly pulled apart and the front ends  234 ,  244  are aligned to the ejection member  15  so that the air hose  16  can be received in the second recesses  27 ,  28  and then led out by the first recesses  25 ,  26  that are intercommunicated second recesses  27 ,  28 . Afterward, when the first member  23  and the second member  24  are drawn back together, the magnets  40  make the first member  23  and the second member  24  stay together under magnetic attraction. At this time, an operator can use one hand to push the disassembling tool  20  toward the ejection member  15  to make the front ends  234 ,  244  touch and then push the annular surface  151  of the ejection member  15  so as to thrust the ejection member  15  move toward the positioning member  13 , and use the other hand to pull out the air hose  16 . 
         [0025]    The tool  20  of present invention features for it compactness. The tool  20  implements its lateral  232  or  242  or front ends  234 ,  244  to press the whole annular surface  151  of the ejection member  15 , so that the pressing force from the operator can evenly distributed over the ejection member  15 , thereby ensuing linear movement of the ejection member  15 . As a result, internal components of the joint originally engage the air hose  16  can completely free the air hose  16 , and thus the air hose  16  can be easily pulled out. Thereby, the operator can easily disassemble the air hose  16  even when the air compressor is actuated and the air pressure in the air hose  16  gets increased, so that the joint  10  and the air hose  16  are better protected from being damaged under forced disassembling operation. 
         [0026]    The present invention has been described with reference to the preferred embodiment and it is understood that the embodiment is not intended to limit the scope of the present invention. Moreover, as the contents disclosed herein should be readily understood and can be implemented by a person skilled in the art, all equivalent changes or modifications which do not depart from the concept of the present invention should be encompassed by the appended claims.