KR890007753Y1 - An assembling tool for universal usage - Google Patents

Abstract

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Description

Multipurpose Nut Disassembly Fastening Tool

1 is an exploded perspective view of the present invention.

2 is an assembled perspective view of the present invention.

3 is an assembled perspective view showing another embodiment of FIG.

4 is a cross-sectional view along the line “A-A” of FIG. 2.

5 is a longitudinal cross-sectional view taken along the line “B-B” in FIG. 2;

6 is an exemplary state of use of the present invention.

7 is a reference diagram illustrating the principle of operation of the known design.

8 is a reference diagram illustrating the principle of operation of the present invention.

The present invention solves the problems of operation structure, function, and fabrication, which were not solved in 1987 Patent Application No. 5817, “Assembling and disassembling tool of tire”, which is the applicant's selection application. It is a multi-purpose nut disassembly and tightening tool that minimizes the number of failures and minimizes the failure rate by reducing and simplifying the number of required components.

In addition, the present invention is disclosed as a utility model "wheel nut detachment device" disclosed in Japanese Patent No. 59-116171 in Japan, and a utility model "spanner" and Publication No. 60-87662 published as a Utility Model No. 47-31278 Its technical background is similar to the designs using planetary gear mechanisms, such as the "Gravity Attachment" (hereinafter, abbreviated as "Notice" for convenience). It is composed of a kind of kinematic force device with a compact and lightweight structure that is easy to carry and connected with a socket wrench to easily dismantle the nuts fastened to various bolts even with extremely small force or to require strong fastening force. It is the same as that of public safety, but in the purpose of achieving the basic purpose such that the nut of the joint can be firmly fastened, In the following description, the advantages of the present invention are discussed together with the problems of the selection application of the present application, which first describes the construction and effect of the present invention for convenience. The difference between the basic means adopted by the selection application "Tyre disassembly tool" and the means adopted by the public notices, and the superiority of the effect are discussed.

In the constitution of the present invention, the main portion of the casing 1 having a short cylindrical shape, the gear reduction gear group 2 and the gear reduction gear group 2, which are combined with the ring gear 11 protruding from the main surface of the center of the casing 1, are upper part. The upper disc (3) supporting the reduction gear group (2) and providing the upper shaft bearing to the reduction gear group (2), the lower disc (4) and the upper disc supporting the reduction gear group (2) from the bottom and providing the lower shaft bearing to the reduction gear group (2). On the upper side of the 3) is formed of a socket movable disk 5 and the like installed integrally by the upper disk 3 and the fastening means.

Based on the above configuration, the detailed configuration of the present invention will be described in more detail together with the following effects.

That is, the fixed arm 12 protrudes laterally to one side end of the casing 1 in order to provide one of the fixed points to be secured when using the present invention, the fixed arm 12 is shown in FIG. As shown, the casing 1 is integrally formed with the casing 1 by a casting or sinter compression molding method or the like and is fixed to the casing 1 by screwing as shown in FIG.

However, in the implementation, the means for laying the fixed arm 12 is not limited to the above-mentioned means, and any means may be adopted as long as its rigidity is secured.

On the other hand, a slit groove 121 is formed toward the distal end of the fixed arm 12, and a cylindrical fixture 13 is inserted into the slit groove 121 by a screw 131, a washer 132, and a screw nut 133. The coupling structure is clearly shown in FIG.

By such a configuration, the fastener 13 can be moved within the length range of the slit groove 121, which means that the range of the interaxial distance from the central axis of the casing 1 to the central axis of the fastener 13 is As such, even if there is a change in the center distance between the nuts fastened to the adjacent bolts, only by moving the position of the fixture 13, it is possible to simply use the detailed description thereof will be described later with reference to FIG.

Inside the ring gear 11 is a reduction gear group 2 is built in, the orthodontic combination of the reduction gear group 2 is shown in detail in FIG.

The reduction gear group 2 is divided into the high speed light load combination part 21 and the low speed heavy load combination part 22 so that it can be selectively used according to the size of the tightening force or the dismantling force of the nut required for use. This is also a configuration for facilitating the dismantling operation in consideration of the larger force required for disassembly than the force for fastening the nut, which is also referred to as a tightening gear group and a loosening gear group in the invention of the present invention. For this reason.

In addition, when the diameter of the ring gear 11 is increased, the orthodontic combination of the reduction gear group 2 is increased, for example, the additional arrangement of the medium-speed medium load combination part, etc.-of fastening force or dismantling force and dismantling speed. The width of the increase and decrease may be further diversified, but the above-described two combination parts 21 and 22 may be sufficient for normal nut disassembling and fastening.

On the other hand, the drive gear 211 of the high speed light load combination part 21 and the drive gear 221 of the low speed heavy load combination part 22 are ring | rings through IDLE GREAR 212, 222, and 223 of a different quantity, respectively. In order to transmit the driving force to the gear 11, in the present invention there is no particular meaning in the quantity and there is no significant difference in function even if the number is increased to only one and many, but two in the low-speed heavy load combination 22 The idle gears 222 and 223 are adopted in order to transfer a stronger force to the ring gear 11 by considering the force required rather than the speed of disassembling and fastening.

However, if the number of idle gears increases, the driving force is increased by interference and friction between gears, so it is desirable to reduce the quantity as much as possible.

The upper disc 3 and the lower disc 4 are formed on the upper and lower sides of the reduction gear group 2 in such a manner that the reduction gear group 2 having the above configuration is rotatably embedded in the same plane as the ring gear 11. Bars (14) and (14) formed by the toothed side of the gear (11) are installed on the outer periphery of the upper disc (3) and the lower disc (4) are formed on the inner peripheral surface of both upper and lower ends of the casing (1), respectively Snap rings (16) and (16) inserted into the snap ring insertion grooves (15) and (15) are inserted to rotatably fix the upper disc (3) and the lower disc (4) at the step (14) and (14). .

At this time, a series of teeth 211 ', 212', 221 ', 222' and 223 'formed integrally on the upper side of the gears 211, 212, 221, 222 and 223 forming the reduction gear group 2 have a bearing function. Each bearing hole 311, 312, 321 and 323 installed in the upper disc 3 to be carried out is rotatably inserted and the same configuration is also the same in the opposite lower disc 4 axis.

Thus, the means for supporting the series of gears forming the gear group 2 in the present invention by the upper disc 3 and the lower disc 4 is described later by adopting such means as one of the main elements of the present invention. It will be described later in detail as to be able to completely solve the problems of one known design and to achieve a simplification of the structure.

On the other hand, the lower end of the drive gear 211, 221 has a square cross-section so that the socket wrench or the box spanner can be inserted after the circular protrusion, and the projection part 211 having the same dimensions as the industrial standard of the commonly used fastening tool &Quot;) " (221 ") are integrally extended to protrude outward of the casing (1), while on one side of each of the protrusions 211 ", 221 " (23) is interpolated so that the bass sockets of various socket wrenches inserted therein can be fixed, and additionally, protrusions 221 " and " 211 " can be exposed to the outside of the lower disc 4; The abdominal disc 6, in which the protrusions exposing holes 61, 61 are installed so as to be installed by the screwing means to finish the configuration.

On the other hand, on the upper side of the upper disk (3), the socket movable disk (5) in which the socket inserting protrusion (51) of the rectangular cross section into which the socket of the socket wrench is inserted is projected on the upper portion of the upper disk (3) through the spacer (33) and (33). It is fixed integrally with the upper disk (3) and is rotated with the snap ring (16) between the rotation of the upper disk (3), the spacer 33 between the upper disk (3) and the socket movable disk (5) ) And (33), the interval is maintained so as to avoid friction with the snap ring (16).

Therefore, the thickness of the spacers 33 and 33 is required to be at least larger than the thickness of the snap ring 16 and the fixing method is as follows.

That is, the spacer fixing screw insertion holes 331 each having a set of three are installed in the upper disk 3, and the spacer fixing screws 332 are inserted from the bottom thereof, and the fixing screw 332 is again a spacer 33. The socket movable disk 5 is screwed into the spiral hole 53 formed at the same position as the spacer fixing screw insertion hole 331 on the bottom surface of the socket movable disk 5 through the through hole 333 formed in , The spacers 33, 33 and the upper disc 3 will be integrally coupled.

On the other hand, the one side of the socket insertion protrusion 51 is inserted into the finger ball 52 which is supported by the spring is firmly inserted to secure the insertion state with the socket, in the embodiment, the shape of the socket insertion protrusion 51 is changed in various ways It may be.

6 is a view illustrating the use state of the present invention having the above-described configuration as described above with the effect of taking the case of disassembling the hub nut of the wheel for convenience.

That is, when the present invention is commercially required, one fixing point and another rotation point are required, which is solved simply by using two adjacent bolts or nuts fastened to the bolts. The nut is inserted into the bolt (b) adjacent to the nut (a) to be fastened or disassembled to provide a fixed point, and is inserted into a known socket (c) inserted into the socket insertion protrusion (51). a) is the point of rotation.

At this time, even if there is a slight increase or decrease in the distance between the central shaft between the adjacent nut (a) and the bolt (b) it can be solved by adjusting the position of the fastener 13 inserted in the slit groove 121 as described above. same.

In addition, the fastener 13 in addition to the method of using the screw 131, the washer 132 and the screw nut 133, as described above in moving the fixing fixture 13 of the present invention in the slit groove 121. It is also possible to employ a means for laying a spiral ball (not shown) in the center of the bottom of the screw and joining a wide head flat bolt (not shown) from its lower end. If the angle of inclination is increased and the pitch is widened, the bolt can be easily disassembled or fixed without turning, even if the bolt is not held by rotating the fixture 13 at the top.

In this way, by selecting one of the two square protrusions (211 ", 221") protruding in the tool of the present invention inserted at two points to insert a known socket wrench handle (d) and rotate the handle (d) When the rotational force is transmitted to one of the tooth combinations of the reduction gear group 2, in the present specification, the high speed light load combination 21 is selected for convenience.

As described above, the transmitted rotational force drives the ring gear 11 through the idle gear 212 engaged by rotating the drive gear 211, but the ring gear 11 is integrally formed in the casing 1. In addition, since the casing 1 is fixed by the fixed arm 12 again, the driving gear 211 eventually makes a planetary motion along the inner circumferential surface of the ring gear 11.

Accordingly, the upper disc 3 inserted by the bearing hole 311 rotates in the casing 1 in the protrusion 211 'of the drive gear 211, and the socket movable disc 5 coupled thereto rotates. Finally, the socket (c) inserted into the socket inserting protrusion (51) is to disassemble or fasten the nut (a).

At this time, the ring gear 11 has a relatively large dimension compared to the drive gear 211 has the same reduction ratio as a conventional reduction gear, so that the nut (a) can be easily fastened with a small force applied to the drive gear 211. Or dismantled.

Compared to the invention of the present invention having the configuration and action effects as described above, the present invention can solve some of the problems caused by the source of the invention in the structure of the casing (1) itself rotates There are advantages, the problems are as follows.

That is, firstly, in order to have a structure in which the casing 1 fixed at two points can be improved as described above, the structure of the fixed arm 12 must be complicated, so there is a problem of difficulty in manufacturing and an increase in cost. It is difficult to assemble or disassemble itself.

Secondly, in the invention of the source, the entire driving load applied to the drive gear 211 imposes an excessive burden on the fixed arm 12, which imposes an excessive burden on the fixed arm 12, thereby preventing torsional deformation or breakage of the fixed arm 12. It had a predisposition to induce.

Third, it should be pointed out that in the gear combination of the reduction gear group 2, the high speed light load combination portion 21 and the low speed heavy load combination portion 22 mesh with each other to act as a factor of interference between the gears on the driving gear and an increase in frictional force. There is a problem in that it increases the wear and tear of the power and takes unnecessary force to drive.

In addition, in the means for inserting the reduction gear group 2 into the upper disc 3 and the lower disc 4, a separate snap ring is to be filled for each tooth, resulting in an additional defect that makes the assembly of the tool difficult. .

On the contrary, the present invention solves the above-mentioned problems of the present invention through the structural improvement and the structure of the casing 1 not rotating as described above.

That is, in the present invention, since the casing 1 is not required to be rotated, the structure of the fixed arm 12 can be made extremely simple, so that the manufacturing cost can be reduced, and the assembly or disassembly of the tool itself is easy, while the fixed arm 12 ) Almost no load is applied, so there is no fear of deformation or breakage, so the durability is long.

In addition, in the reduction gear group 2 of the present invention, by separating and arranging the high speed light load combination portion 21 and the low speed heavy load combination portion 22, it is possible to avoid unnecessary friction and reduce the wear of the gear, which is not necessary for driving. Eliminate unnecessary forces.

In addition, in the present invention, in inserting the reduction gear group 2 into the upper disc 3 and the lower disc 4, a means for holding only one snap ring 16 and 16 on each side is adopted. In addition to the cost savings, there is an advantage in that assembly is easy.

Next, the present invention (including the original application filed by the same applicant as the original design) will be discussed below in comparison with the public notices mentioned at the beginning of the present specification by applying FIG. 7 and FIG. Shall be.

However, it should be noted that in Fig. 7 and 8 to use a separate sign to avoid confusion with the reference to the difference between the above-described invention and the invention application of the present invention.

7 is a conceptual diagram illustrating the basic means of driving adopted by the known designs, the known designs are partially different in the means for achieving a specific purpose, but in the basic principle does not deviate from the operation structure shown in FIG. This will be described below.

That is, in the known design, the driven gear A2 is disposed at the rotation center point A21 of the outer ring gear A1 constituting the planetary gear mechanism, and the circumference of the driven gear A2 is 3 from the rotation center point A21. Although equal-or quadrature may be adopted, in the present specification, a case of dividing into three equal parts will be described as an example. The drive gears A31, A32, and A33 that engage with the driven gear A2 are arranged on the water lines A211, A212, and A213.

Meanwhile, rotation center points A311, A321, and A331 of the driving gears A31, A32, and A33 are fixed to the triangular bracket A4 so as to be rotatable, and thus the triangular bracket A4. By the rotation of the planetary motion on the inner circumferential surface of the ring gear (A1) at the same time to operate the driven gear (A2) engaged with it finally.

In such a known design, a handle shaft (not shown) is attached to the central axis of the triangular bracket A4 so that a socket (not shown) attached to the central axis of the driven gear A2 is fastened or dismantled. Under this operating structure, some problems are caused.

That is, on the water lines A211, A212, and A213 where the driven gear A2 and the driving gears A31, A32, and A33 are divided in three from the center of rotation A21 of the ring gear A1. By being engaged, the forces acting on each other are in perfect equilibrium.

Therefore, there is no room for the right force to be operated on the driven gear A2 that is finally operated, and only the driven gear A2 is operated by the rotational force of the drive gears A31, A32, and A33. .

In addition, the ring gear A1 is merely a guide gear that allows the drive gears A31, A32, and A33 to make a planetary motion, and the intended purpose is to follow the driven gear A2 and the drive gear A31. ), (A32), and (A33) to achieve the reduction by the difference in magnitude.

For this reason, in the known design, only one of the driving gears A31, A32, and A33 and the driven gear A2 is required, and the ring gear A1, the driving gears A31, and A32 are required. ), And the other two of (A33) have the fundamental problem that they only cause interference and frictional resistance between gears, increasing only the force required for wear and operation of each gear.

In addition, in this method, normal rotation is possible under the condition that the force is not operated as a result of actual use, but when a force is applied during the nut disassembly operation, each gear is to be canceled with each other as in the direction of the force shown by the arrow. When synthetic force is applied, smooth rotation is impossible, and if excessive force is applied to move it, it causes severe abrasion of each gear. Therefore, in the resonant design, the bearing is designed to alleviate this. Is used, but it cannot be a fundamental solution, only a rise in its manufacturing cost.

Meanwhile, a large amount of torsional stress is applied to the triangular bracket A4 from the rotation center points A311, A321, and A331 of the driving gears A31, A32, and A33. If the cross-sectional thickness of A4) is not thick enough, there is a problem that it will be broken or deformed and cause an inoperable state.

Another problem is that all of the known designs have only one reduction ratio, and in general, when the bolt or nut is fastened by using the reduction device and then disassembled using the same reduction device, the reduction device may not be used. Since excessive force is required as in the case of tightening, a reduction gear having a reduction gear ratio greater than the reduction gear of the used reduction gear is required.

8 is a conceptual diagram of the driving means adopted by the present invention, and in the present invention, a means completely different from the means adopted by the resonant design, which is as follows.

That is, the drive gear B2 and the driven gear B3 of the present invention, and each of the central axes B21 and B31 are rotatably supported on the disc B4, and the disc B4 is the center axis B41. Fastening nut to the). In the power transmission process, when the dismantling socket (not shown) is installed and is rotated on the concentric shaft with the ring gear B1, first, when the driving gear B2 rotates, the rotational force becomes the back frame v1. The contact with (B3) is converted into the tangential vector v2, and the vector v2 acts as the vector v3 on the contact line of the same size even at the contact between the driven gear B3 and the ring gear B1.

On the other hand, between the center axis B21 of the drive gear B2 and the contact point between the driven gear B3 and the ring gear B1, the vector v4 acts, so that the vectors v3 and v4 are synthesized to become a vector v5. In the disc B4, if the radius between the central axis B41 of the disc B4 and the inner circumferential surface of the ring gear B1 is 1, the strong force corresponding to M = v5 × 1 by the formula of M = F × 1 The right force (MOMENT) will act to rotate the disc (B4) and this is the core of the present invention.

With this principle, the present invention is able to completely solve the problem that the operational force is generated as in the known design by naturally causing a strong turning force even with a very small force.

Other detailed configurations and effects of the present invention have been described above.

As described in detail above, the present design has the following advantages over the known design, that is, in the present design, there is no difficulty in its operation structure, so the bearing is not inserted as in the known design, thereby reducing the cost. Of course, the failure rate can be minimized. Meanwhile, when a bolt or nut is fastened using a reduction gear such as a well-known design, and then dismantled using the same reduction gear, it is the same as when the deceleration device is not used. Since the excessive force of requires a reduction gear of another reduction ratio is inconvenient to follow, in the present invention can be solved by configuring two different reduction ratio in the same reduction gear can be selectively used.

In addition, since there is almost no load applied to the fixed arm of the present invention, there is no problem such as breakage or deformation of the fixed arm, and the interaxial distance can be changed within the slit groove. There are also advantages.

As such, the present invention is a very innovative design that completely solves the problems of the prior application and known designs of the present invention.

Claims (5)

A short cylindrical casing 1 in which a ring gear 11 is formed on the inner core body, the reduction gear group 2 combined with the ring gear 11, and the reduction gear group 2 rotate freely at both ends of the casing 1. The upper disk (3), the lower disk (4) and the upper disk (3) to be inserted into the socket movable disk (5), which is fixed by a screw fixing means on the upper side, and the socket insertion protrusion (51) of the square cross section is protruded from the center. Versatile nut disassembly fastening tool. According to claim 1, wherein the fixed arm (12) having a slitting groove (121) formed at its distal end protrudes laterally on one side upper end of the casing (1), the cylindrical fastener (13) is screwed in the slitting groove (121) Multipurpose nut disassembling and fastening tool, characterized in that the installation is movable by the coupling means. The drive gear 211 according to claim 1, wherein the reduction gear group 2 is divided into a high speed light load combination section 21 and a low speed heavy load combination section 22, and each drive gear 211 constituting each combination section 21, 22 is formed. ), (221) and the upper and lower bilateral side (211 '), (221'), (212 '), (222') (223 ') of the idle gears (212), (222), (223) On the other hand, in connection with the lower projection of the drive gear (211), (221), the multi-purpose nut disassembly tightening tool, characterized in that the protrusions (211 "), 221" having a square cross section is spoken. The bearing grooves 311, 321, 312 and (3) of claim 1, wherein the shafts 211 ', 221', 222 ', and 223' of the reduction gear group 2 are inserted. 322 and 323, the upper disk 3 is formed on the shaft end of the ring gear 11, the snap ring 16 is placed on the outer periphery of the upper disk 3 with the gap between the casing 1 It is inserted into the snap ring insertion groove 15 arranged on the inner circumferential surface to fix the upper disk 3 freely, and the same shape and function is characterized in that the lower disk 4 is fixed to the opposite side by the same means. Versatile nut disassembly and tightening tool. 5. The multipurpose nut disassembly according to claim 1, characterized in that a spacer (33) and (33) are disposed between the upper disc (3) and the socket movable disc (5) with a cross section somewhat thicker than the cross section thickness of the snap ring (16). Fastening tool.