Patent Publication Number: US-11383358-B1

Title: Wrench

Description:
BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present invention relates to a wrench. 
     Description of the Prior Art 
     A wrench is a common type of hand tool in the manufacturing industry. It is often used to turn bolts, nuts or other fasteners. There are various types of wrenches respectively for various types of fasteners or for various usage needs. For example, there are conventional types of wrenches, such as open-ended wrenches, torx wrenches, adjustable wrenches, ratchet wrenches, or the wrenches disclosed in TWM605149, TW1716192 and TWM588608. 
     However, in the conventional types of wrenches, the rod member and the driving member cannot relatively swing, so more space is required for the rod member to sufficiently rotate, and the position of the rod member is limited by the surrounding environment or interfered by obstacles. 
     The present invention is, therefore, arisen to obviate or at least mitigate the above-mentioned disadvantages. 
     SUMMARY OF THE INVENTION 
     The main object of the present invention is to provide a wrench which is operable in various use angles to meet requirements in different environments and compatible with various fasteners. 
     To achieve the above and other objects, the present invention provides a wrench, including: a rod member; and a driving member, rotatably connected to the rod member, including an insertion hole disposed therethrough, the insertion hole being configured for a connector to be replaceably inserted therewithin. 
     The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment(s) in accordance with the present invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a stereogram of a preferable embodiment of the present invention; 
         FIG. 2  is a breakdown drawing of a preferable embodiment of the present invention; 
         FIGS. 3 and 4  are cross-sectional views respectively showing different states of a driving member according to a preferable embodiment of the present invention; 
         FIG. 5  is another cross-sectional view of a preferable embodiment of the present invention; and 
         FIG. 6  is an enlargement of a driving member of a preferable embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Please refer to  FIGS. 1 to 6  for a preferable embodiment of the present invention. A wrench of the present invention includes a rod member  1  and a driving member  2 . 
     The driving member  2  is rotatably connected to the rod member  1  to form a movable joint mechanism so that there are multiple use angles to meet requirements in different environments, such as removing the clutch nut in the engine room of a car. The driving member  2  is preferably plate-shaped, which increases contact area and swinging range. The driving member  2  includes an insertion hole  21 , and the insertion hole  21  is configured for a connector  5  to be replaceably inserted therewithin depending upon various fasteners. The connector  5  may be a socket, extension rod, or the like. 
     The connector  5  is inserted within the insertion hole  21  of the driving member  2 , which lowers their thickness and is easy to use in a narrow space. The driving member  2  having the insertion hole  21  is easy to manufacture, which lowers production cost and increases productivity. 
     Preferably, the insertion hole  21  is a regular polygonal hole, which can distribute force between the driving member  2  and the connector  5 . In this embodiment, the insertion hole  21  is a hexagonal hole, which is compatible with most types of sockets. 
     Specifically, the driving member  2  further includes a circumferential wall  211  defining the insertion hole  21  and including an engaging groove  22 , a restriction member  3  is engaged within the engaging groove  22 , and the restriction member  3  is partially protrusive out from the engaging groove  22  to restrict the connector  5 , which prevents disengagement of the connector  5  during operation. The restriction member  3  is meshed with at least one groove  51  of the connector  5 . 
     Preferably, the brightness of the driving member  2  is higher than the brightness of the rod member  1  so that the driving member  2  can be saw easily as it is located within a narrow space. 
     The rod member  1  includes a first end  11  and a second end  14  on an axial direction thereof, the first end  11  is connected with the driving member  2 , and the second end  14  includes a connection portion  15  for connection of a driving tool. In this embodiment, the connection portion  15  is configured to be connected to a pneumatic tool. 
     Specifically, the first end  11  of the rod member  1  includes two projections  12 , the driving member  2  is inserted between the two projections  12 , and a pin  4  connects the driving member  2  and the two projections  12  so that the driving a member  2  is rotatable about the pin  4 . 
     Specifically, the first end  11  further includes a bottom portion  16 , the bottom portion  16  is lateral to and connected between the two projections  12 , and the driving member  2  is kept direct contacting the bottom portion  16  during rotating, wherein the bottom portion  16  keeps supporting the driving member  2  and the driving member  2  can be stably held relative to the rod member  1 . When the driving member  2  rotates to be perpendicular to the rod member  1 , a lateral surface  29  of the driving member  2  is abutted against an end surface  161  of the bottom portion  16 . 
     In this embodiment, the driving member  2  further includes a connection hole  23 , the pin  4  is disposed through the first end  11  of the rod member  1  and within the connection hole  23 , a diametric dimension of the connection hole  23  is smaller than a diametric dimension of the insertion hole  21 , and a center of the connection hole  23  and a center of the insertion hole  21  are located on an axis  24  of the driving member  2 . 
     The driving member  2  further includes a driving side portion  25  and a connection side portion  26  on the axis, the connection side portion  26  includes the connection hole  23  disposed therethrough, and the driving side portion  25  includes the insertion hole  21  disposed therethrough. 
     A thicknesswise direction  27  is defined as to be perpendicular to the axis  24 , a thickness of the driving side portion  25  is larger than a thickness of the connection side portion  26  in the thicknesswise direction  27 . The thicknesswise direction  27  is parallel to an axis of the insertion hole  21 . A shoulder portion  251  is formed between the driving side portion  25  and the connection side portion  26 . The driving side portion  25  is thick, which provides strong structural strength for bearing the force from the connector  5  during rotating the fastener. The connection side portion  26  is thin and disposed between the two projections  12  between, which lowers the total thickness. 
     Preferably, a side of the first end  11  remote from the second end  14  includes an arcuate face  13 . As collision to the rod member  1  occurs, the arcuate face  13  can prevent the rod member  1  from damage and it can operates smoothly. When the driving member  2  rotates to be perpendicular to the rod member  1 , the arcuate face  13  is at least partially protrusive beyond the driving member  2  in the axial direction of the rod member. 
     Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.