KR200210009Y1 - wrench with turning handle - Google Patents

Abstract

The present invention is used to fasten or loosen the fastener socket for polygons of hexagonal or square polygons, such as bolts and nuts, to tighten or loosen fasteners with polygonal heads. And, the other hand relates to a wrench having a rotary handle to enable a more convenient work by moving a rotary knob such as a crank mechanism, the socket 40 is connected to the end of one side by a fastening means (30) At the other end, the connecting rod 52 is a rotating rod 50 fixed in a 'T' shape, and the fixed rod 54 is fixed to the end of the connecting bar 52 and installed in parallel with the rotating rod 50. ), A rotary knob 56 which is inserted to move freely outside the fixing rod 54 and both ends are bent inward, and is fitted to move freely on the outside of the rotary rod 50 and both ends thereof It is composed of a fixed handle 58 bent inward.

Description

Wrench with turning handle {wrench with turning handle}

The present invention relates to a wrench having a rotary knob used to tighten or loosen a fastening socket for hexagonal or square polygonal box wrenches such as bolts and nuts to tighten or loosen a fastening part having a polygonal head. Specifically, the present invention relates to a wrench having a rotation handle that allows one hand to maintain the center of rotation and the other hand to move the rotation handle such as a crank mechanism to make the operation more convenient.

In general, bolts are divided into light and heavy loads according to the load acting on the fastening part. Among them, the bolts used for heavy loads are hexagon head bolts, square head bolts, and hexagon socket head bolts depending on the shape of the head part. And square groove bolts are widely used. Nuts are mainly hexagonal and square.

When tightening or loosening these bolts and nuts, spanners or box wrenches are usually used. While spanners are simple in structure and inexpensive, they are difficult to rotate continuously. Due to the inconvenience of having to repeat the process, it has been avoided in the workplace where frequent fastening work is to be performed, and vox wrenches are mainly used because work is difficult in places where the space for fastening work is not secured.

Such a box wrench has an electric and a manual type. In particular, in the case of a manual box wrench, a relatively long arm that can be held by hand to concentrate the force on the lever principle is connected to the socket.

However, such a manual vox wrench is difficult to rotate continuously during fastening or dismantling, and thus, the box wrench must be removed from the bolt or nut during the work. In order to solve this problem and improve the work efficiency, the one-way rotating mechanism between the arm and the socket is improved. Use a box wrench with a ratchet mechanism to install the ratchet mechanism, which is a type of ratchet mechanism, to allow the arm to idle in the socket when returning, and to move the arm and the socket together when applying force in the forward direction again. It became.

Thus, when tightening or releasing a bolt or nut using a box wrench equipped with a ratchet mechanism, the box wrench is first inserted into the head or nut of the bolt and repeatedly reciprocated at a predetermined angle.

At this time, the force applied to the bolt or nut is applied only when the vox wrench moves in one direction, and when the vox wrench is returned, no force is applied, thereby reducing work efficiency.

On the other hand, a tool with a box wrench socket on the end of a long rod, such as a hand-held screwdriver, can be used to loosen the tool with one hand and maintain the center, while turning the tool with the other hand. There was a problem that the tool could not be rotated smoothly because of the friction between the operator's hand and the tool to maintain, and because of the joint structure of the wrist of the person, the tool cannot be rotated continuously. There was a problem that the work productivity is lowered due to the inconvenience.

When the tool body and the box wrench socket are made in one piece, the manufacturing cost increases, so in general, the box wrench socket and the tool body are manufactured separately so that several sockets can be combined with one tool body for use. There is a problem in that, if the force is applied excessively during use, the socket for the socket wrench is separated from the tool body, and if the carelessness is inadvertently used, the socket may be lost.

The present invention has been made in order to solve the above problems, the purpose is to be able to rotate continuously to fasten and detach the bolt or nut more quickly and simply, when turning the tool between the tool and the operator's hand It is to provide a wrench having a rotary handle that can improve the work efficiency by preventing friction that may occur in the.

In order to achieve the object of the present invention, one end of the socket is connected to the socket by a fastening means, the other end of the rotary bar is fixed in the 'T' shape, and the fixed bar is fixed to the end of the connecting bar and the rotary rod A fixed rod installed in parallel, a rotating handle fitted to move freely on the outside of the fixed rod and bent inwardly at both ends, and a fixed handle fitted at both ends of the rotating rod to be freely movable and bent inward at both ends thereof; Has

1 is a cross-sectional view showing the configuration of a wrench having a rotary handle according to the present invention

Figure 2 is a front view showing the configuration of a wrench having a rotary handle according to the present invention

Figure 3 is a perspective view showing the configuration of a wrench having a rotary handle according to the present invention

Figure 4 is an exploded perspective view showing the configuration of a wrench having a rotary handle according to the present invention

5 is a cross-sectional view taken along line A-A of Figure 1 showing the configuration of a wrench having a rotary handle according to the present invention

Figure 6 is a plan view showing the configuration of a wrench having a rotary handle according to the present invention

* Explanation of Signs of Major Parts of Drawings *

30: fastening means 32: hole

34: home 36: depression

40: socket 50: rotating rod

52: connecting bar 54: fixed rod

50a, 54a: outer circumferential surface 56: rotation knob

56a, 58a: corner portion 58: fixed handle

G: Axial play

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the configuration of a wrench having a rotary handle according to the present invention, Figure 2 is a front view showing the configuration of a wrench having a rotary handle according to the present invention, Figure 3 is a rotary handle according to the present invention 4 is an exploded perspective view showing the configuration of the wrench having a rotation handle according to the present invention, Figure 5 is a AA line of Figure 1 showing the configuration of a wrench having a rotation handle according to the present invention 6 is a plan view showing a configuration of a wrench having a rotation handle according to the present invention, and as shown therein, an end of one side is connected to the socket 40 by a fastening means 30, and the other end of the Connecting bar 52 is a rotating rod 50 is fixed in the 'T' shape, fixed rod 54 is fixed to the end of the connecting bar 52 and installed in parallel with the rotating rod 50, and the fixed Free on the outside of the rod 54 And it can rotate the handle (56) is fitted to move, and composed of an outer fixing knob 58 is fitted to be able to move freely in the hoejeonbong 50.

That is, the connection of the connecting bar 52 and the rotary bar 50 forms a hole 52h in the middle of the connecting bar 52, and the diameter of the upper end of the rotating bar 50 is inserted into the hole 52h. This reduced rod-shaped coupling portion (50g) is formed by joining each other and then welded to configure the overall shape to form a 'T' shape.

In addition, the connection of the connecting bar 52 and the fixing bar 54 forms a hole 52k at the end of the connecting bar 52, and is inserted into the hole 52k at the lower end of the fixing bar 54. To form a rod-shaped coupling portion 55 is reduced in diameter so as to join each other and welded to form an overall shape 'L' shape.

In addition, a flange portion 54p is formed at the upper end of the fixing rod 54 to prevent the rotation knob 56 from being separated in the axial direction.

Then, the both ends of the fixed handle 58 is gently bent inward so that the edge portion 58a of both ends thereof is in contact with the outer circumferential surface 50a of the rotating rod 50 so that the inner circumferential surface of the fixed handle 58 is the rotary rod ( It is configured to minimize the friction that may occur between the fixed handle 58 and the rotating rod 50 by not being in direct contact with 50).

Both ends of the rotary knob 56 are gently bent inwardly so that the corner portions 56a of both ends thereof contact the outer peripheral surface 54a of the fixed rod 54 so that the inner peripheral surface of the rotary knob 56 is fixed rod ( 54) by minimizing the friction that may occur between the rotary knob 56 and the fixed rod (54) by avoiding direct contact.

That is, the rotary knob 56 and the fixed knob 58 is configured by cutting a circular steel pipe to an appropriate length, and forming the both ends inward to form the edges 56a and 58a of the rotary rod 50 and the fixed rod ( The line circumferential surface 50a (54a) of each of the lines 54) was configured to minimize frictional force during rotation.

The fastening means 30 forms a hole 32 in which a part of the rotating rod 50 is inserted into the socket 40, and a groove 34 is formed in the outer circumferential surface 50a of the rotating rod 50. The socket 40 was formed by forming a depression 36 to be deformed by the groove 34, and when assembling to form a hole 32 formed in the socket 40 slightly smaller than the diameter of the rotating rod 50 It can be configured to be press-fitted.

In addition, the hole 32 is formed downward from the center top surface of the socket 40, and configured to have a bottom, the groove 34 and the depression 36 is, for example, each of four in the circumferential direction Although the road is formed, it is not necessarily limited to this number, the number can be arbitrarily determined according to the needs of the production.

An axial play G is further formed between the connection bar 52 and the socket 40 in which the fixing knob 58 flows in the axial direction.

That is, the length of the fixed handle 58 is formed shorter than the distance between the connection bar 52 and the socket 40, and thus the length of the rotary rod 50 is also formed longer than the fixed handle 58 to rotate the rod 50 Part of is to be exposed to the outside.

In the figure, reference numeral 80, 82 denotes a fastened object, 84 denotes a bolt, and 84a denotes a bolt head.

Hereinafter, the operation according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 6, when assembling the socket 40 and the rotating rod 50 in the manufacturing process, the lower end of the rotating rod 50 is inserted into the hole 32 formed in the socket 40. When the local part is pressed to deform the outer surface of the socket 40 into the groove 34 formed in the rotating rod 50 in the state, the socket 40 is deformed into a recessed shape inwardly exceeding the plastic deformation limit. ) Is formed and the rotary bar 50 and the socket 40 is coupled.

At this time, the socket 40 and the rotating rod 50 do not move in the axial direction with each other, and at the same time do not move in the circumferential direction to maintain the state coupled to each other.

On the other hand, if it is necessary to tighten or separate the fasteners, such as bolts 84, nuts, insert the bolts (84) to the fastened material (80) (82), and then insert the socket 40 to the bolt head (84a) While holding the fixed handle 58 with one hand and holding it so as not to move, while holding the rotary handle 56 with the other hand and rotating in a circle, the rotating rod 50 is rotated by the fixed handle 58. While being guided and rotated at the inner circumferential surface of the fixed handle 58, the bolt 84 coupled to the rotary rod 50 is also rotated along the rotary rod 50, and is integrally connected to the rotary rod 50 to be connected. The bar 52, the fixed rod 54, and the rotary knob 56 are also rotated.

At this time, since the rotary knob 56 is held by the hand, the bar can be idle even at the same time in the fixed rod 54, and the bolt 84 is tightened or loosened according to the rotation direction of the rotary rod 50.

In addition, since the rotary knob 56 and the fixed knob 58 are formed in a circular tubular shape, and both ends thereof are formed inward, the contact area between the fixed rod 54 and the rotary rod 50 during rotation is increased. It is minimized to help smooth rotation.

In addition, when tightening or detaching a plurality of bolts (84) and nuts, the fixing knob 58 is held as it is, and when the rotary knob 56 is pulled upward, between the connection bar 52 and the socket 40 The fixed handle 58 stays in place by the axial play G formed in the socket 40, together with the rotary rod 50, the connecting bar 52, the rotary knob 56, and the fixed rod 54. Therefore, the upper part is separated from the bolt 84 while being moved upwards, and then the horizontal knob 56 is moved horizontally to the position where the bolt 84 to which the fixed knob 58 is to be worked is moved to tighten or loosen another bolt 84. By lowering), pretreatment for tightening or loosening the bolts 84 can be performed more conveniently.

As described above, the present invention is configured to rotate continuously when tightening or loosening a fastener such as a bolt or a nut, so that the fastening and detaching of the bolt and nut can be performed more quickly and easily. Even if the handle is held by hand, since the fixed handle is assembled in the shape of a rotating rod, it is possible to prevent the occurrence of frictional force at the holding portion and to improve the work efficiency.

In addition, the clearance is formed as the fixed handle flows in the axial direction, and thus, when used for repeated fastening / dismounting operations, the number of processes of coupling and dismounting bolts or nuts can be reduced, so that quick and convenient work can be performed. It is effective to be.

Claims (3)

The end of one side is connected to the socket 40 by the fastening means 30, the other end of the connecting rod 52 is a rotating rod 50 is fixed in the 'T' shape; A fixed rod 54 fixed to an end of the connection bar 52 and installed in parallel with the rotary rod 50; A rotation knob 56 fitted to move freely outside the fixing rod 54 and having both ends bent inwardly; Wrench having a rotary handle, characterized in that the rotating rod 50 is inserted so as to be free to move, both ends of the fixed handle 58 is bent inwardly. The method of claim 1, wherein the fastening means 30 is formed in the socket 40 a hole 32 into which a portion of the rotating rod 50 is inserted, the groove (34) in the outer peripheral surface (50a) of the rotating rod (50) ), The wrench having a rotary handle, characterized in that formed in the socket 40 by forming a depression 36 which is deformed by a groove (34). The rotary knob of claim 1, further comprising an axial play (G) between the connecting bar (52) and the socket (40) in which the fixed handle (58) flows in the axial direction. wrench.