KR20160118659A

KR20160118659A - Ratchet wrench for socket

Info

Publication number: KR20160118659A
Application number: KR1020150047082A
Authority: KR
Inventors: 김동규
Original assignee: 김동규
Priority date: 2015-04-02
Filing date: 2015-04-02
Publication date: 2016-10-12

Abstract

[0001] The present invention relates to a socket for a ratchet wrench, in which an elliptical jaw eccentric to the lower end of each of planetary gears constituting a planetary gear is integrally formed and the planetary gear is rotated through the rotation of the ring gear, Jaws are rotated to accommodate bolt heads and nuts of various sizes. In order to achieve the above object, according to the present invention, there is provided a portable terminal comprising: a body having an upper opening formed with three notches formed at equal intervals on an outer periphery thereof; A plurality of planetary gears mounted on the mounting groove of the body so as to be rotatable at equal intervals, the teeth of the outer periphery being exposed through the notch groove; A ring gear rotatably mounted on the outer periphery of the body and to be meshed with the planetary gear through an inner peripheral tooth; A sun gear installed between the planetary gears and coupled with the planetary gears through teeth of the outer periphery; A carrier which is seated on an installation groove through an upper end of the body and rotatably supports the planetary gear, the stud coupling groove being formed at the upper end of the ratchet handle, A housing coupled to the outer periphery of the body to restrain the position of the ring gear; A C-ring installed through the upper end of the body and restricting the housing and the ring gear to the outer periphery of the body; And an elliptical jaw integrally formed at the lower end of each of the planetary gears and extended by a predetermined length through a through groove of the body.

Description

Socket for ratchet wrench {Ratchet wrench for socket}

The present invention relates to a rack socket wrench, and more particularly, to a rack socket wrench capable of continuously assembling or dismounting various bolts or nuts of different sizes without attaching separate sockets, The present invention relates to a ratchet wrench which can be detached.

In general, a wrench is also called a spanner, and a spanner is an English expression of an English wrench. Normally, a force applied to both sides of a bolt or nut is called a spanner, and a force applied to all six sides is called a wrench.

Various types of wrenches such as a ratchet box end wrench, a flare nut wrench, a monkey wrench, a ratchet socket wrench, a double wrench, a bath end wrench, and a combination wrench are used as the types of wrenches described above.

Meanwhile, among the various types of wrenches described above, the ratchet wrench is used to easily tighten or loosen bolts or nuts. Such a ratchet wrench is classified into various types according to its size, shape, and usage.

1 is a perspective view showing a ratchet wrench according to a conventional art.

As shown in FIG. 1, the ratchet wrench according to the prior art has a body 10 having a predetermined length, which is formed with a knob 20 at the rear end, a head 10 having a ratchet gear attached to the outer edge thereof 30, and a socket 40 fitted to the head 30 and formed with an insertion groove into which a bolt head or a nut 50 can be inserted.

When the knob 20 is rotated by a predetermined angle in one direction or the other direction when the bolt or nut is to be tightened or loosened by the ratchet wrench as described above, the head 30 and the socket 40 are rotated and the socket 40 The bolt head or the nut 50 inserted in the bolt or nut is rotated and the bolt or nut is tightened or loosened.

However, since the socket used with the ratchet wrench according to the related art can be used only when tightening or loosening a bolt (or a nut) of a single standard, when a bolt (or nut) having a different standard is tightened or loosened There is a problem in that a plurality of sockets corresponding to the respective standards are separately coupled to the head.

In other words, when the ratchet wrench according to the prior art is used to tighten or loosen several bolts of different sizes, one bolt (or nut) is tightened or loosened with a ratchet wrench, then the socket is separated from the head, Since the bolt (or nut) must be tightened or loosened by coupling the socket to the head again, there is a problem that the socket corresponding to the bolt (or nut) must be joined and separated.

In addition, since the ratchet wrench according to the related art has to be provided with a plurality of sockets of various sizes, it has a problem in that it is costly, and therefore, there is a problem that a heavy tool box must be carried and carried.

In addition, the ratchet wrench according to the related art has a problem that it is difficult to insert the socket into the deep groove when fastening or removing the bolt or nut to / from the deep groove of the work object, so that it is difficult to work on the deep groove of the work object .

Korean Patent Laid-Open No. 2013-0108943 (Published October 10, 2013) Korean Registered Patent No. 10-0861069 (issued on September 30, 2008) Korean Registered Patent No. 10-0861068 (issued September 30, 2008) Korean Registered Patent No. 10-0762173 (issued on October 1, 2007) Korean Patent Publication No. 2007-0100778 (Published October 11, 2007)

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve all the problems of the prior art, and it is an object of the present invention to provide a planetary gear device, which is constituted by integrally forming elliptical jaws eccentric to the lower ends of planetary gears constituting a planetary gear, And a socket for a ratchet wrench, which can accommodate bolt heads and nuts of various sizes by rotating elliptical jaws.

Another object of the present invention is to provide a planetary gear mechanism that is capable of changing the position of a jaw that is rotated in accordance with rotation of a planetary gear by rotation of a ring gear from a long length to a short length or from a short length to a long length, So that it can be used regardless of the size of the bolt head or the nut having different specifications.

It is still another object of the present invention to provide a method of connecting and disconnecting a socket by allowing a bolt head or a nut having a different size within a range of a maximum size and a minimum size that the socket can accommodate to be used through one socket The purpose is to make sure that there is no feeling.

In addition, according to the present invention, a bolt head or a nut having a different size within a range of a maximum size and a minimum size that a socket can accommodate through one socket can be used through one socket, And it is an object of the present invention to eliminate the burden of the cost of purchasing a plurality of sockets.

Further, according to the present invention, it is possible to use a bolt head or a nut having a different size within a range of a maximum size and a minimum size that a socket can accommodate through one socket through a single socket, thereby using a heavy tool box or the like So that there is no.

In addition, according to the present invention, the elliptical jaw having a predetermined length, which is rotated according to the rotation of the planetary gear, is formed to have a predetermined length so that when the bolt or nut is fastened or detached in the deep groove of the workpiece, So that work on the deep groove of the workpiece can be facilitated.

The present invention configured to achieve the above-described object is as follows. That is, the socket for a ratchet wrench according to the present invention is characterized in that an installation groove is formed at an upper portion of the socket, wherein at least three recessed grooves are formed at equal intervals on the outer periphery and a through- ; A plurality of planetary gears mounted on the mounting groove of the body so as to be rotatable at equal intervals, the teeth of the outer periphery being exposed through the notch groove; A ring gear rotatably mounted on the outer periphery of the body and to be meshed with the planetary gear through an inner peripheral tooth; A sun gear installed between the planetary gears and coupled with the planetary gears through teeth of the outer periphery; A carrier which is seated on an installation groove through an upper end of the body and rotatably supports the planetary gear, the stud coupling groove being formed at the upper end of the ratchet handle, A housing coupled to the outer periphery of the body to restrain the position of the ring gear; A C-ring installed through the upper end of the body and restricting the housing and the ring gear to the outer periphery of the body; And an elliptical jaw integrally formed at the lower end of each of the planetary gears and extended by a predetermined length through a through groove of the body.

In the configuration according to the present invention as described above, the jaws are formed eccentrically to one side at the lower end of each of the planetary gears. When the jaws are positioned outward from the center of the planetary gears by rotation of the planetary gears, While the housing of the bolt head or the nut of the minimum size when the jow is positioned inward from the center of the planetary gear by the rotation of the planetary gear is made possible.

In the structure according to the present invention, the jaws can be configured to accommodate bolt heads or nuts of various sizes, each of which is jawed by the rotation of the planetary gear, the jaws being within the outer or inner range from the center of the planetary gear.

In the configuration according to the present invention, on the outer circumferential surface of the ring gear, a scale for the size of the bolt head or the nut is further indicated, and the scale is aligned with the reference point through the rotation of the ring gear, The present invention is not limited thereto.

In addition, in the structure according to the present invention, a ball receiving groove formed on the stud may be formed on each of the inner side surfaces of the stud engagement groove at the center of the upper end of the carrier, so that the stud is not automatically separated upon coupling of the carrier. have.

Another aspect of the present invention is a planetary gear device comprising: a planetary gear for rotating a plurality of planetary gears rotatably connected to a central sun gear through rotation; A body on which a planetary gear is installed; A carrier provided on an upper end of the body and rotatably supporting the planetary gear, the stud coupling groove being formed in the center of the upper end of the ratchet handle; And an elliptical jaw that is integrally formed at the lower end of each of the planetary gears and extends a predetermined length to the lower end of the body so that a bolt head or a nut having a different standard between the plurality of teeth can be engaged.

According to the technique of the present invention, the elliptical jaws eccentrically formed at the lower ends of the respective planetary gears constituting the planetary gear are integrally formed, and the planetary gear is rotated through the rotation of the ring gear to rotate the elliptical jaw There is an advantage in that various sizes of bolt heads or nuts can be accommodated.

In addition, according to the present invention, the position of a jaw that is rotated in accordance with the rotation of the planetary gear due to the rotation of the ring gear changes from a long length to a short length or from a short length to a long length, So that it can be used regardless of the size of the bolt head or nut having different specifications.

In addition, according to the present invention, since a bolt head or a nut having a different size within a range of a maximum size and a minimum size that a socket can accommodate can be used through one socket, there is no need to combine or separate the socket. Of course, there is no need to provide multiple sockets of various sizes. As a result, it is possible to solve the burden of the cost of purchasing a plurality of sockets, and there is no need to use a heavy tool box or the like.

Furthermore, according to the present invention, the elliptical jaws are rotated in accordance with the rotation of the planetary gears to have a predetermined length, so that when the bolts or nuts are fastened or detached in the deep grooves of the workpiece, So that the work on the deep groove of the workpiece can be facilitated.

1 is a perspective view of a ratchet wrench according to the prior art.
2 is a schematic view showing a ratchet wrench according to the present invention.
3 is a perspective view showing a socket for a ratchet wrench according to the present invention.
4 is a perspective view of a socket for a ratchet wrench according to the present invention.
5 is a perspective view of a socket for a ratchet wrench according to the present invention, viewed from a different angle.
6 is a perspective view of a socket for a ratchet wrench according to the present invention.
7 is a front view showing a socket for a ratchet wrench according to the present invention.
8 is a longitudinal sectional view showing a socket for a ratchet wrench according to the present invention.
9A to 9E are views showing the configuration of a planetary gear and a jaw constituting a socket for a ratchet wrench according to the present invention.
FIG. 10 is a view showing that bolt heads and nuts of various sizes using a socket for a ratchet wrench according to the present invention can be accommodated. FIG.
FIGS. 11A to 11C are views showing restraint states of bolt heads and nuts of different standards according to the jaw rotation of a socket for a ratchet wrench according to the present invention, according to the present invention. FIG.

Hereinafter, a preferred embodiment of a socket for a ratchet wrench according to the present invention will be described in detail with reference to the drawings.

FIG. 2 is a perspective view of a ratchet wrench according to the present invention. FIG. 3 is a perspective view of a socket for a ratchet wrench according to the present invention. FIG. 4 is a perspective view of a ratchet wrench according to the present invention. FIG. 5 is a perspective view showing a socket for a ratchet wrench according to the present invention, FIG. 6 is a perspective view of a socket for a ratchet wrench according to the present invention, and FIG. FIG. 8 is a vertical cross-sectional view showing a socket for a ratchet wrench according to the present invention. FIGS. 9A to 9E are views showing a socket for a ratchet wrench according to the present invention, FIG. 10 is a configuration view showing that bolt heads and nuts of various sizes can be accommodated using the socket for a ratchet wrench according to the present invention according to the present invention. FIGS. 11A to 11C are views The fastened state of the bolt head or the nut of the other standards in accordance with the jaws rotated in the socket for the ratchet wrench according to the invention according to the state diagram shown.

2 to 11, a socket 100 for a ratchet wrench according to the present invention includes a mounting groove 112 opened at an upper portion thereof, and at least three notches 114 A body 110 having a through hole 116 formed at an equal interval formed through the upper and lower ends of the body 110 and a mounting groove 112 of the body 110 so as to be rotatable at regular intervals, A plurality of planetary gears 120 installed to be exposed through the notch grooves 114 and a plurality of planetary gears 120 installed to be rotatable around the outer periphery of the body 110, A sun gear 140 installed between the ring gear 130 and the planetary gear 120 and coupled to the planetary gear 120 through teeth on the outer periphery of the ring gear 130, The studs 22 of the head 20 of the ratchet handle 10 are rotatably supported on the grooves 112 by rotating the planetary gears 120, A housing 160 that is coupled to the outer periphery of the body 110 through an upper end of the body 110 and restrains the position of the ring gear 130, Ring 170 and the planetary gear 120 which are integrally formed at the lower ends of the C ring 170 and the planetary gear 120 for restricting the housing 160 and the ring gear 130 to the outer periphery of the body 110, And an elliptical jaw (180) extending a predetermined length through the groove (116).

2 to 11, the jaws 180 according to the present invention configured as described above have an elliptical cross-sectional shape and are eccentrically eccentrically disposed at the lower ends of the respective planetary gears 120. At this time, the jaws 180 are formed eccentrically from the center of each of the planetary gears 120 to the same position. 10 and 11, each of the jaws 180 is formed eccentrically outwardly from the center of each of the planetary gears 120 so that the jaws 180 are rotated by the same rotation of the planetary gears 120 And points at the same position in each direction.

The socket 100 for a ratchet wrench according to the present invention configured as described above is configured such that the stud 22 constituting the head 20 of the ratchet handle 10 is inserted into the stud engagement groove 152 formed at the center of the upper end of the carrier 150 So that it can function as a ratchet wrench. At this time, when the stud 22 constituting the head 20 of the ratchet handle 10 is inserted into the stud engagement groove 152 formed at the center of the upper end of the carrier 150, the stud 22 is formed on one side of the stud 22 The fixed ball 24 is seated on the ball seating groove 154 formed in each of the inner side surfaces of the stud engagement groove 152 so that the stud 22 and the stud engagement groove 152 are not separated from each other.

The stationary ball 24 formed on the stud 22 of the ratchet handle 10 as described above is resiliently formed by a spring (not shown) so that the stationary ball 24 is inserted into the stud engagement groove 152 The stud 22 and the carrier 150 are fixed to each other. When the socket 100 is detached from the stud 22 when the carrier 150 is detached from the stud 22, when the socket 100 is pulled out, pressure is applied to the fixed ball 24, The fixing ball 24 can be separated from the stud 22 to separate the socket 100 from the stud 22.

The socket 100 for a ratchet wrench according to the present invention uses the principle of a planetary gear. In the configuration of the present invention, the planetary gear 120, the ring gear 130, the sun gear 140, (150) is the same as the driving principle of the planetary gear. That is, when the ring gear 130 is rotated by the user's selection, the plurality of planetary gears 120 rotate in the same direction.

Since the plurality of planetary gears 120 are rotatably supported by the carrier 150 constituting the socket 100 for the ratchet wrench according to the present invention as described above, the planetary gears 120 can be rotated to be. That is, the planetary gear 120, which always operates as an idle gear in the planetary gear composed of the sun gear 140, the ring gear 130, the carrier 150 and the planetary gear 120, The elements are fixed, driven or freed to become direct, decelerate, accelerate, reverse, and neutral.

As described above, the ratchet wrench socket 100 according to the present invention, which employs the principle of the planetary gear, has a jaw 180 integrally formed at the lower end of each of the planetary gears 120, The jaws 180 may be eccentrically arranged from one side of the center of the planet gears 120 to one side of the jaws 180 so that the area of the jaws 180 connected to each other is changed according to the position of the jaws 180, 100), bolt heads or nuts (50) of various sizes can be tightened and loosened.

Each component constituting the socket 100 for a ratchet wrench according to the present invention will be described in more detail as follows. First, the body 110 constituting the present invention is for installing a planetary gear. In such a body 110, as shown in FIG. 2 to FIG. 8, an installation groove 112 opened to the upper side is formed, And three or more notched grooves 114 formed at equal intervals on the peripheral edge and equally spaced through grooves 116 formed vertically through the lower end.

The body 110 configured as described above is provided with three or more planetary gears 120 rotatably disposed at equal intervals in the radial direction through the inside of the mounting groove 112, A sun gear 140 is installed in the center of the planetary gear 120 through a tooth coupling with a tooth on the outer periphery of the planetary gear 120. The ring gear 130 is rotatably coupled through the outer periphery of the body 110 to be rotatable in the left and right direction and is engaged with a tooth on the outer peripheral surface of the outer periphery of the planetary gear 120 exposed to the cut-齒).

Next, the planetary gear 120 constituting the present invention constitutes the principle of the planetary gear, and this planetary gear 120 is shown in Figs. 3, 6, 8, 9, 10 and 11 The rotation of the ring gear 130 causes the rotation of the ring gear 130 to rotate clockwise or counterclockwise to change the position of the jaw 180 described later.

The planetary gear 120 configured as described above is mounted on the mounting groove 112 of the body 110 so as to be rotatable at equal radial intervals as described above, 114, respectively. The planetary gear 120 installed in this manner is a part of the ring gear 130 disposed on the outer periphery of the body 110 and is exposed to the outside through the notched groove 114 of the body 110, To-teeth combination.

On the other hand, the planetary gear 120 described above operates as an idle gear as described above, and is turned clockwise or counterclockwise in accordance with the rotation of the ring gear 130 in the left-right direction. That is, the planetary gear 120 only changes the rotational direction in accordance with the left-right rotation of the ring gear 130.

Next, the ring gear 130 constituting the present invention is for turning the left or right rotation of the planetary gear 120, which is rotated through left and right according to the user's choice. And is connected to a tooth on the outer circumferential surface of the planetary gear 120 through a tooth of the inner peripheral edge of the body 110 so as to be rotatable to the left and right.

The ring gear 130 constructed as described above is mounted on the mounting groove 112 of the body 110 and is formed with a tooth formed on the inner ring so that the ring gear 130, (Not shown). The ring gear 130 and the planetary gear 120 are rotated counterclockwise or counterclockwise according to the rotation of the ring gear 130 by the user.

The sun gear 140 constituting the present invention rotates about the center of the mounting groove 112 between the planetary gears 120 installed so as to be rotatable laterally on the mounting groove 112 of the body 110 at regular radial intervals 3, 6, and 8, the sun gear 140 is installed in the installation groove (not shown) of the body 110, which is the center between the planetary gears 120 installed at even intervals in the radial direction 112 of the planetary gear set 120 and teeth of the outer circumferential surface of the planetary gear 120 through teeth of the outer circumferential surface.

In the configuration of the socket 100 for a ratchet wheel according to the present invention, the sprocket gear 140 configured as described above is installed at the center between the planetary gears 120 installed at equal radial intervals, So that the planetary gear 120 can be smoothly rotated in the left-right direction.

Next, the carrier 150 constituting the present invention rotatably supports the planetary gear 120 mounted on the mounting groove 112 of the body 110 at regular radial intervals. 8, the planetary gear 120 is mounted on the mounting groove 112 through the upper end of the body 110 so as to support the planetary gear 120 at radially equidistant intervals. The upper end of the planetary gear 120 supports the head 20 of the ratchet handle 10 And a stud engagement groove 152 in which a stud 22 configured to be inserted and coupled is formed.

The outer shape of the carrier 150 configured as described above has a structure corresponding to the shape formed by the installation groove 112 of the body 110 and the cutout groove 114 to form the carrier 150 on the installation groove 112 The carrier 150 installed on the mounting groove 112 is not rotated due to the protruding portion corresponding to the notch groove 114 when the terminal is inserted.

The planetary gear 120 and the sun gear 140 are inserted into the lower end of the carrier 150 as described above so that the planetary gear 120 and the sun gear 140 A hinge groove (not numbered) is formed to enable smooth rotation during rotation. This hinge groove is formed on the position corresponding to the center of the lower end surface of the carrier 150 and the center of rotation of the planetary gear 120.

The upper end surface of the carrier 150 having the above-described structure is provided with a hexagonal stud coupling groove (corresponding to the hexagonal stud 22 constituting the head 20 of the ratchet handle 10 152 are formed. At this time, ball seating grooves 154 in which the stationary balls 24, which are formed on one side of the stud 22, are seated are formed in each of four inner side surfaces of the stud engagement grooves 152.

The reason why the ball seating grooves 154 on which the stationary balls 24 are seated is formed on each of the four inner surfaces of the stud engaging grooves 152 as described above is that the studs 22 are inserted in the studs Even if the engaging groove 152 is inserted into the engaging groove 152, the fixing ball 24 is seated, so that the stud 22 and the stud engaging groove 152 are not separated from each other. At this time, the fixed ball 24 is resiliently installed by a spring (not shown).

The housing 160 constituting the present invention is for restricting the ring gear 130 rotatably coupled to the outer periphery of the body 110. The housing 160 is similar to that shown in Figs. So that the position of the ring gear 130 is restrained.

In other words, as described above, the ring gear 130 rotatably coupled to the outer periphery of the body 110 is fixed between the lower end of the notch portion of the body 110 and the housing 160, So that the rotational force of the ring gear 130 can be smoothly achieved in a state where the teeth of the inner ring of the ring gear 130 and the teeth of the outer peripheral surface of the planetary gear 120 are coupled to each other by restricting the housing 160. [ do.

The C ring 170 constituting the present invention is fitted on a ring groove (not numbered) provided on the outer periphery of the upper end of the body 110 to form a ring gear 130 and the housing 130. The C ring 170 is installed through the upper end of the body 110 as shown in Figures 2 to 8 and rotates the housing 160 and the ring gear 130 ) To the outer periphery of the body (110).

Next, the jaws 180 constituting the present invention are capable of restraining and tightening the bolt head or the three surfaces of the nuts 50, and the jaws 180 are arranged in such a manner as shown in Figs. 2 to 11 The planet gears 120 are integrally formed at the lower ends of the respective planetary gears 120, and extend through a lower end of the body 110 and extend for a predetermined length.

The jaws 180 are formed eccentrically on one side of the lower end of each of the planetary gears 120. Each jaw 180 is rotated by the rotation of the planetary gears 120 from the center of the planetary gears 120 When the planetary gear 120 is positioned outside, the bolt head or the nut 50 of the maximum size is accommodated, and when the planetary gear 120 rotates, the jowls 180 each move inward from the center of the planetary gear 120 So that the bolt head or the nut 50 can be accommodated.

11A, an area of each of the jaws 180 coupled to the inner side of the jaws 180 when the planet gears 120 are positioned outward from the center of the planet gears 120 may be formed by a bolt head or a nut The jaws 180 correspond to the maximum size of the planetary gears 50. When the jowls 180 are positioned inward from the center of the planetary gears 120 by the rotation of the planetary gears 120, The area connecting the side surfaces corresponds to the minimum size of the bolt head or nut 50. [

As shown in FIG. 11B, when the jowls 180 are rotated by about half from the center of the planetary gear 120 by the rotation of the planetary gear 120, the inner surfaces of the jaws 180 are connected The area has an area corresponding to a size intermediate between the maximum size of the bolt head and the nut 50 and the minimum size.

According to the present invention configured as described above, various types of bolt heads or nuts 50 can be accommodated and tightened according to the position of the jaws 180 that are determined according to the degree of rotation of the planetary gears 120. That is, the jaws 180 can receive bolt heads or nuts 150 of various sizes, each of which is within the outer or inner range from the center of the planet gears 120 by rotation of the planet gears 120 . As described above, the socket 100 according to the present invention is a socket 100 that rotates the planetary gear 120 through the rotation of the ring gear 130 in accordance with the size of the bolt head or nut 50 of various sizes, 180) in the direction of the arrow.

In addition, in the present invention, in addition to the above-described structure, a scale 132 for the size of the bolt head or the nut 50 is additionally marked on the outer circumferential surface of the ring gear 130, and the housing 160 is rotated through the rotation of the ring gear 130, The size of the bolt head or the nut 50 can be adjusted through the operation of aligning the scale 132 with the reference point 162 formed on the base.

As described above, according to the present invention, the position of the elliptical jaw 180 is changed by rotating the planetary gear 120 through the principle of the planetary gear so as to correspond to the bolt head or nut 50 of various sizes Thereby making it easier to use the ratchet wrench.

In addition, since the socket 100 according to the present invention can correspond to the bolt head or the nut 50 of various sizes through one socket 100, it is possible to reduce the cost of purchasing the socket 100, I can also relieve the inconvenience of carrying it.

In addition, since the jaw 180 constructed as described above is extended from the lower end of the body 110 by a predetermined length, it is possible to insert the socket into the deep groove even when fastening or removing the bolt or nut into the deep groove of the work object So that the work on the deep groove of the workpiece can be facilitated.

The present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the technical idea of the present invention.

10. Ratchet handle 20. Head
22. Stud 24. Fixed Ball
50. Bolt head or nut
100. Socket 110. Body
112. Installation home 114. Loop grooves
116. Through groove 120. Planetary gear
130. Ring gear 132. Scale
140. Sun gear 150. Carrier
160. Housing 162. Reference point
170. C ring 180. Jou

Claims

A body formed with three or more notched grooves formed at equal intervals on the outer periphery and a through groove penetrating through the upper and lower portions formed at the lower end thereof;
A plurality of planetary gears mounted on the mounting grooves of the body so as to be rotatable at equal intervals, the teeth of the outer periphery being exposed through the notched grooves;
A ring gear rotatably installed on an outer periphery of the body, the ring gear being meshingly engaged with the planetary gear through an inner peripheral tooth;
A sun gear installed between the planetary gears and coupled to the planetary gears through teeth of the outer periphery;
And a stud coupling groove formed in the upper end of the ratchet handle, the stud coupling groove being formed in the head of the ratchet handle;
A housing coupled to the outer periphery of the body to restrain the position of the ring gear;
A C-ring installed through an upper end of the body and restricting the housing and the ring gear to the outer periphery of the body; And
And an elliptical jaw integrally formed at a lower end of each of the planetary gears and extended by a predetermined length through a through groove of the body.

2. The planetary gear set according to claim 1, wherein the jaws are formed eccentrically to one side of a lower end of each of the planetary gears, wherein when the jaws are positioned outward from the center of the planetary gears by rotation of the planetary gears, Wherein the housing of the bolt head or the nut of the minimum size is accommodated when the jow is positioned inward from the center of the planetary gear by rotation of the planetary gear.

2. The ratchet according to claim 1, wherein the jaws are adapted to accommodate bolt heads or nuts of various sizes, each of the jaws being rotatable by the planetary gears within the outer or inner range from the center of the planetary gear, Socket for wrench.

4. The ring gear according to any one of claims 1 to 3, wherein a scale for the size of the bolt head or the nut is marked on the outer circumferential surface of the ring gear, and the scale is aligned with a reference point formed on the housing through rotation of the ring gear And the bolt head and the nut can be fitted to each other through the action of the bolt.

5. The stud according to claim 4, wherein each of the inner side surfaces of the stud engagement groove formed at the center of the upper end of the carrier is provided with a ball receiving groove formed on the stud so as not to be disengaged from the stud automatically, Wherein the socket is formed with a recessed portion.