Patent Publication Number: US-2016229040-A1

Title: Wrench

Description:
BACKGROUND OF THE INVENTION 
     1. Fields of the Invention 
     The present invention relates to a wrench, and more particularly, to a wrench having a first part and a second part, a connector is pivotably connected between the first and second parts, each of the first and second parts is pivotable relative to the connector. 
     2. Descriptions of Related Art 
     The conventional wrench generally comprises a head, a handle, a connector and two pins. The connector is connected between the head and the handle. One of the pins pivotably connects the rear end of the connector and the front end of the handle, and the other pin pivotably connects the rear end of the connector and the front end of the handle. The handle is pivotable relative to the head by the connector. However, when the two axes of the two pins are perpendicular to each other, the handle has to be pivoted to a dead point such that the head can be pivoted. This will lose the torque when operating the wrench. Furthermore, the pivotal actions of the handle and the head require a lot of space so that the wrench is not suitable for being used in a narrow space. Yet another problem is that the handle and the connector have to be made by the molding unit that has special specifications which increase the manufacturing cost. 
     The present invention intends to provide a wrench that eliminates the shortcomings mentioned above. 
     SUMMARY OF THE INVENTION 
     The present invention relates to a wrench includes a first part, a second part, a connector and two pins. The first part has a U-shaped first pivotal portion, and the second part has a U-shaped second pivotal portion. The connector has two ends pivotally connected in the first and second pivotal portions by extending the two pins extending through the first and second pivotal portion and the two ends of the connector so as to pivotally connect the first part and the second part. Each of the first and second parts is pivotable relative to the connector. The first part and the second part do not interfere each other. 
     The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an exploded view of the wrench of the present invention; 
         FIG. 2  is a perspective view to show the first use status of the wrench of the present invention; 
         FIG. 3  is a perspective view to show the second use status of the wrench of the present invention; 
         FIG. 4  is a perspective view to show the third use status of the wrench of the present invention; 
         FIG. 5  is a perspective view to show the second embodiment of the wrench of the present invention; 
         FIG. 6  is a perspective view to show the use status of the wrench in  FIG. 5  of the present invention; 
         FIG. 7  is a perspective view to show the third embodiment of the wrench of the present invention; 
         FIG. 8  is a perspective view to show the fourth embodiment of the wrench of the present invention, and 
         FIG. 9  is a perspective view to show the fifth embodiment of the wrench of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to  FIGS. 1 and 2 , the wrench of the present invention comprises a first part  10 , a second part  20  and a connector  30 , wherein the first part  10  has a first pivotal portion  11  formed on the first end thereof. The first pivotal portion  11  is a U-shaped portion which has two extensions and a first recess  12  is defined between the two extensions. Each of the two extensions has a first hole  13 , wherein one of the first holes  13  has a threaded portion  14  defined therein. The first part  10  has a function end formed on the second end thereof, in this embodiment, the function end is a box end and has a ratchet mechanism so as to drive ab object. 
     The second part  20  has a first end and a second end, wherein a second pivotal portion  21  is formed on the first end thereof and the second pivotal portion  21  is a U-shaped portion which has two extensions and a second recess  22  is defined between the two extensions of the second pivotal portion  21 . The second recess  22  is located corresponding to the first recess  12 . The width of the second recess  22  is equal to the width of the first recess  12 . Each of the two extensions of the second pivotal portion  21  having a second hole  23  and one of the two second holes  23  has a second threaded portion  24  defined therein. The diameter of the second holes  23  is equal to the diameter of the first holes  13 . The second part  20  has a grip portion and an open wrench head is formed on the second end thereof. 
     The connector  30  is a quadratic prism and has a first end and a second end, wherein the first end and the second end of the connector  30  are respectively located in the first recess  12  and the second recess  22 . The connector  30  has two parallel engaging faces  300  located on two opposite sides thereof. The two engaging faces  300  each are in contact with insides of the first and second recesses  12 ,  22 . A third hole  31  and a fourth hole  32  are respectively and transversely defined through the connector  30 . The two respective axes of the third and fourth holes  31 ,  32  are parallel to each other. The distance between the third and fourth holes  31 ,  32  is sized so as to prevent the first part  10  from being in contact with the second part  20 . 
     Two pins  40  each have a third threaded portion  41  on the distal end thereof. One of the two pins  40  extends through the first and third holes  13 ,  31 , and the third threaded portion  41  is connected to the first threaded portion  14  of the first hole  13 . The other one of the two pins  40  extends through the second and fourth holes  23 ,  32 , the third threaded portion  41  is connected to the second threaded portion  24  of the second hole  23 . By this way, the first and second parts  10 ,  20  are pivotably connected to each other by the connector  30 . 
     As shown in  FIG. 3 , the first part  10  is pivoted such that the connector  30  stands upright, a portion of the first part  10  is located beneath the second part  20 . Because the two engaging faces  300  each are in contact with insides of the first and second recesses  12 ,  22 , so that when rotating the second part  20 , a sufficient torque is output to drive the first part  10 . 
     As shown in  FIG. 4 , the first part  10  is located beneath the second part  20  and a portion of the handle. When an object is engaged with the first part  10 , the object contacts the underside of the second part  20 , so that when rotating the second part  20  to drive the first part  10 , the object is well position in the first part  10 . 
     As shown in  FIGS. 5 and 6 , the second part  20  has a through hole  25 , and the distance between the through hole  25  and the first end of the second part  20  is equal to the distance between the axis of the function end on the second end of the first part  10  and the first end of the first part  10 . When the second part  20  is pivoted and overlapped on the first part  10 , the through hole  25  of the second part  20  is in alignment with the function end of the first part  10 . Therefore, a longer threaded rod  46  with a nut  45  can extends through the through hole  25  and the first part  10 . 
     As shown in  FIG. 7 , the second part  20  has another second pivotal portions  21  formed on the second end thereof. There are two connectors  30  and two first parts  10 . The two first parts  10  each have the first pivotal portion  11 . The two first parts  10  are respectively and pivotably connected to the two second pivotal portions  21  of the second part  20  as shown. On each end of the second part  20 , two pins  40  respectively extend through the second pivotal portion  21 , the first pivotal portion  11  and the two respective connectors  30 . 
     As shown in  FIG. 8 , there are two first parts  10  and each have the first pivotal portion  11 . There are three connectors  30  and two second parts  20 . The two second parts  20  each have one second pivotal portion  21  formed on each of the first and second ends thereof. The two second parts  20  are located along a straight line. One of the connectors  30  is pivotably connected between the two respective and adjacent second pivotal portions  21  of the two second parts  20 . The two first parts  10  are respectively and pivotably connected to the two second pivotal portions  21  of the two second parts  20  by the two connectors  30 . 
     As shown in  FIG. 9 , the second part  20  has a rectangular hole  26  so as to be connected with a socket or another wrench with a rectangular protrusion. 
     It is noted that the pins  40  each are a rivet so that no threaded portion is needed. The connector  30  can be a cylindrical or hexagonal connector. 
     The wrench of the present invention provides a first part  10  and a second part  20  which does not interfere the pivotal action of the first part  10 . The two ends of the connector  30  are respectively connected to the first part  10  and the second part  20 , so that the first part  10  can be set at an angular position relative to the second part  20 . 
     While we have shown and described the embodiment 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.