JP2007090480A - Male tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a male tool, engaged with a recessed fastening hole of a socket type fastener having the recessed fastening hole to turn the socket type fastener and fasten the same, preventing the structure from being complicated, and reducing the risk that a mover idles in non-use. <P>SOLUTION: This male tool includes: a base 1 having a guide part 10; and energizing elements 41, 42 for energizing the plurality of movers 21, 31 of the male tool to a working position or a retreat position. The movers 21, 31 are provided with male outer wall surfaces 22, 32 different in diameter size, and disposed on the guide part 10 of the base 1 to slide in one direction and the other direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a male tool that is fitted into a concave fastening hole of a socket-type fastener for fastening a socket-type fastener.

  Conventionally, a female integrated socket wrench for fitting a hexagonal head of a hexagonal bolt from the outside of the hexagonal bolt is disclosed as a fastening tool (Patent Document 1). This integrated socket wrench includes a base portion having a guide space and a plurality of movable bodies having a hexagonal cylinder shape having tool inner walls having different diameter sizes. According to this, since the hexagon head of the hexagon bolt is rotated, it is a female tool that fits the head of the hexagon bolt from the outside. According to this, since all of the plurality of hexagonal cylindrical movable bodies can be accommodated together in the guide space of the base, an advantage that the storage space can be reduced is obtained.

  Another type of female integrated socket wrench is disclosed (Patent Document 2). This also fits the hexagonal head of the hexagon bolt from the outside. According to this, a plate-like portion having a shaft portion is used, and the six plate-like portions are arranged so as to form a hexagonal tube in cross section while the shaft portion is inserted into the mating hole. Thereby, the socket-shaped fitting part used as a tool inner wall surface is formed. With such a structure, a plurality of female socket-like fitting portions are provided.

Another type of female integrated socket wrench is disclosed (Patent Document 3). According to this, as shown in FIGS. 13 and 14, a female large-diameter socket 100, a female small-diameter socket 200 coaxially fitted inside the large-diameter socket 100, A spring 300 that biases the small-diameter socket 200 is provided. As shown in FIG. 14, the tip portion 101 of the large-diameter socket 100 and the tip portion 201 of the small-diameter socket 200 are set at the same position in the axial length direction by the spring 300. When the small-diameter fastening bolt 500 fitted to the small-diameter socket 100 is rotated and fastened, the hexagonal head 510 of the small-diameter fastening bolt 500 is attached to the female small-diameter socket 200 as shown in FIG. Fit.
JP 11-245173 A JP 2002-103242 A JP 2000-84862 A

  According to Patent Documents 1 to 3 described above, all are female types that are fitted to the hexagonal heads of the fastening bolts from the outside and rotated, and fitted into the concave fastening holes of the socket type fasteners. Is not of a male type.

  Further, according to the female tool according to Patent Document 1, the biasing element that biases the plurality of movable bodies to the use position or the retracted position is not provided. For this reason, when the stopper is removed, there is a possibility that each movable body may move freely. Further, according to the female tool outer wall surface according to Patent Document 2, it is necessary to arrange six plate-like portions in a hexagonal shape in cross section when forming a female integrated socket, and the structure becomes considerably complicated. Assembling is not easy.

  Furthermore, according to the female tool outer wall surface according to Patent Document 3, a female socket is used as a component. For this reason, as shown in FIG. 14, when fastening the small-diameter fastening bolt 500, the hexagonal head 510 of the small-diameter fastening bolt 500 is fitted into the small-diameter socket 200 during normal use as shown in FIG. To do. However, depending on the work, as shown in FIG. 14, the hexagonal head 510 of the small-diameter fastening bolt 500 may face the large-diameter socket 100. In this case, since it is not easy to visually recognize the fitting state of the hexagonal head portion 510 of the fastening bolt 500 from the outside, the fastening operation may proceed as it is. In this case, when the hexagonal head 510 of the fastening bolt 500 is displaced from the large-diameter socket 100 toward the small-diameter socket 200 in the arrow W1 direction, the operator or the robot may be impacted.

  The present invention has been made in view of the above circumstances, and can be fastened by rotating the socket-type fastener by fitting into the concave-shaped fastener hole among the socket-type fasteners having the concave fastener holes, Moreover, it is an object of the present invention to provide a male tool that is advantageous in avoiding the complexity of the structure.

(1) A male tool according to aspect 1 is a male tool that is fitted into a concave fastening hole of a socket-type fastener in order to fasten a socket-type fastener having a concave fastening hole,
A base portion having a male outer wall surface and a guide portion to be fitted into a concave fastening hole of one socket type fastener;
A movable body having a male outer wall surface having a different diameter size with respect to the male outer wall surface of the base, and provided on the guide portion of the base so as to be slidable along one direction and the other direction;
And an urging element for urging the movable body in one direction.

  According to the male tool according to the aspect 1, the male outer wall surface of the base is fitted into the concave fastening hole of the one socket type fastener, and the one socket type fastener is rotated and fastened. Further, the movable body has a male outer wall surface having a diameter size different from that of the male outer wall surface of the base. Therefore, the male outer wall surface of the movable body is fitted into the concave fastening hole of the other socket type fastener, and the other socket type fastener is rotated and fastened. Further, the urging element urges the plurality of movable bodies in one direction and holds them in place. For this reason, it is suppressed that the movable body moves between the use position and the retracted position when not in use, such as during storage. Note that according to the male tool according to aspect 1, the number of movable bodies may be singular or plural.

(2) The male tool according to aspect 2 is a male tool that is fitted into the concave fastening hole of the socket-type fastener in order to fasten the socket-type fastener having a concave fastening hole,
A base having a guide;
A plurality of movable bodies having male outer wall surfaces having different diameter sizes from each other, and slidably provided in one direction and the other direction on the guide portion of the base;
And a biasing element that biases the plurality of movable bodies in one direction.

  According to the male tool according to aspect 2, the male outer wall surface of one movable body is fitted into the concave fastening hole of one socket-type fastener, and the one socket-type fastener is rotated and fastened. . The other movable body has a male outer wall surface having a diameter size different from that of the male outer wall surface of the base. Therefore, the male outer wall surface of the other movable body is fitted into the concave fastening hole of the other socket type fastener, and the other socket type fastener is rotated and fastened. Further, the urging element urges the plurality of movable bodies in one direction and holds them in place. For this reason, when not in use such as during storage, the plurality of movable bodies are restrained from moving between the use position and the retracted position. In the male tool according to aspect 2, the number of movable bodies is plural.

  According to the aspect 1 and the aspect 2, it is possible to provide a male tool that can be fitted into the concave fastening hole of the socket-type fastener and can be fastened by rotating the socket-type fastener. And unlike patent document 2, the structure which forms six plate-shaped parts in a cylinder shape is not employ | adopted, and complication of a structure can be avoided.

  The male tool according to the present invention is to be fitted into a concave fastening hole in a socket type fastener having a concave fastening hole. A preferable male tool includes a base portion having a guide portion, a plurality of movable bodies, and a biasing element that biases the plurality of movable bodies to a use position or a retracted position. The base holds the movable body, and its structure is not particularly limited. The movable body is slidable in one direction on the guide portion of the base, and can be switched between the use position and the retracted position. The movable body has a male outer wall surface having a diameter different from that of the male outer wall surface of the base. The cross-sectional shape of the male outer wall surface of the movable body is preferably a square shape (for example, a hexagonal shape, a quadrangular shape, or a triangular shape). It is preferable to provide a plurality of movable bodies. In this case, one movable body can serve as one male tool, and the other movable body can serve as another male tool having a different diameter size. The number of movable bodies is not particularly limited, but considering the structure, ease of use, etc., about 1 to 5 and about 1 to 3 are preferable.

  According to the present invention, it is possible to exemplify a form in which the plurality of movable bodies have a diameter size that decreases stepwise as they go in one direction. Here, the movable body can exemplify a form including a first movable body and a second movable body. The first movable body has a first male outer wall surface that is a relatively small-diameter male outer wall surface. The second movable body has a second male outer wall surface having a larger diameter than the first male outer wall surface of the first movable body. Since such a plurality of movable bodies are provided, it can serve as a plurality of male outer wall surfaces.

  Here, when using the male outer wall surface of a relatively large diameter movable body among a plurality of movable bodies, the relatively small diameter movable body is concealed inside the relatively large diameter movable body or the base. The form to be performed can be illustrated. For this reason, when the male outer wall surface having a relatively large diameter is used, the male outer wall surface having a relatively small diameter is prevented from interfering with the fastening operation.

  According to the present invention, it is possible to exemplify a form in which the urging element is formed of a plurality of individual urging elements that individually urge each of the plurality of movable bodies to the use position or the retracted position. In this case, a possibility that a plurality of movable bodies may idle when not in use is reduced. Examples of the urging element include a coil spring, a leaf spring, and a foam. Further, since each of the plurality of movable bodies is individually urged by the plurality of individual urging elements, each of the plurality of movable bodies can be operated individually. The guide part of a base part can illustrate the form which is a wall surface which forms the guide space which has opening. In this case, the movable body can be accommodated in the guide space.

  According to the present invention, the male outer wall surface of the movable body can be exemplified as a convex surface that fits into the fastening hole of the fastening head of the socket-type fastener. In this case, the fastening head of the socket-type fastener can be rotated, which is advantageous for fastening the socket-type fastener. Moreover, the form by which the largest diameter male outer wall surface is formed in the guide part side among the outer wall surfaces of a base part can be illustrated. In this case, the outer wall surface of the base can be used as a male outer wall surface.

  According to the present invention, it is possible to exemplify a form in which a holding tool that holds a plurality of movable bodies on a base portion is slidable. Each movable body has a recess extending in the sliding direction, the holder is a rod-like member extending in a direction intersecting the sliding direction, and the holder is inserted into the recess of the movable body. In this case, a plurality of movable bodies can be slidably held on the base.

  According to this invention, about the base, the form by which the male type | mold outer wall surface is formed in the guide part side of a base can be illustrated. The base part can illustrate the form which has an engaging part for rotating a base part around the axis center of this. The engaging part can illustrate the form currently formed in the opposite side to the protrusion direction of a movable part among bases. In this case, it is advantageous to avoid interference with the movable part when rotating the base part.

  A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view of a male tool. FIG. 2 is a perspective view of the main part of the male tool. FIG. 3 is an end view of one end of the male tool. FIG. 4 is an end view of the other end side of the male tool. The male tool of the present embodiment is configured to tighten a socket bolt (socket-type fastener) having a fastening head having a concave fastening hole by rotating it in the circumferential direction. In the present specification, the small diameter, medium diameter, and large diameter mean the relative size of the diameter.

  As shown in FIG. 1, the male tool of the present embodiment has a base 1 having a main guide space 10 as a guide, a male movable body 2, and the movable body 2 at the use position, that is, in the direction of the arrow P1. And a biasing element 4 for biasing. The base 1 holds the movable body 2. The main guide space 10 of the base 1 has a tip opening 10a. The main guide space 10 has a seating surface 11 as a bottom surface of the main guide space 10. The base portion 1 is formed with an engaging portion 14 for rotating around the axis P thereof. The engaging portion 14 has a square concave shape (generally, but not limited to a square concave shape) in cross section, and is formed on the end portion 1x of the base portion 1 opposite to the tip opening 10a. Has been.

  As shown in FIG. 1, the movable body 2 includes a first movable body 21 having a relatively small diameter and a second movable body 31 having a relatively medium diameter. The first movable body 21 has a first male outer wall surface 22 having a relatively small diameter. The first movable body 21 is guided by the inner wall surface 10i of the main guide space 10 of the base 1 and is slidable in one direction (arrow P1 direction) and the other direction (arrow P2 direction).

  The second movable body 31 has a second male outer wall surface 32 having a relatively larger diameter than the first male outer wall surface 22 of the first movable body 21. The second movable body 31 has a cylindrical shape with a hexagonal cross section, and has a second guide space 33 with a hexagonal cross section inside. The second guide space 33 has a volume that can accommodate all or most of the first movable body 21. The main guide space 10 of the base 1 has a volume that can accommodate the second movable body 31. Accordingly, the length L3 of the main guide space 10 of the base 1 is longer than or equal to the length L1 of the first movable body 21 and the length L2 of the second movable body 31.

  The first movable body 21 is guided by the inner wall surface 33i of the second guide space 33 of the second movable body 31 and is slidable in one direction (arrow P1 direction) and the other direction (arrow P2 direction). As a result, the first movable body 21 can be switched between the use position and the retracted position.

  As shown in FIG. 1, the urging element 4 is formed by a first coil spring 41 as a first individual urging element and a second coil spring 42 as a second individual urging element. The diameter of the first coil spring 41 is indicated as D1, and the diameter of the second coil spring 42 is indicated as D2 (D1 <D2). The first coil spring 41 is interposed between the seating surface 11 of the base 1 and the end surface 21e of the first movable body 21, and individually biases the first movable body 21 toward the use position in the arrow P1 direction. . The second coil spring 42 is interposed between the seating surface 11 of the base 1 and the end surface 31e of the second movable body 31, and individually urges the second movable body 31 in the direction of the arrow P1 toward the use position. . Since the first movable body 21 and the second movable body 31 are individually urged by the first coil spring 41 and the second coil spring 42 in the base 1 in this way, the first movable body 21 and the second movable body 31 are individually and Can be operated independently. The first coil spring 41 and the second coil spring 42 are arranged coaxially.

  As shown in FIG. 1, the first male outer wall surface 22 at the distal end of the first movable body 21 is a first fastening head of a small-diameter first socket bolt 50s (first socket-type fastener, for example, an M8 equivalent). A convex surface that fits into the first fastening hole 52s (hexagonal cross section) of the portion 51s is formed. Further, as shown in FIG. 5, the second male outer wall surface 32 at the tip of the second movable body 31 is a second socket bolt 50m (second socket type fastener, for example, M12 equivalent) having a medium diameter. A convex surface that fits into the second fastening hole 52m (hexagonal cross section) of the fastening head 51m is formed.

  As shown in FIG. 6, a large-diameter male outer wall surface 12 having the largest diameter is formed on one end side of the outer wall surface of the base 1 as a portion having a tool function. The large-diameter male outer wall 12 has a large-diameter fastening hole 52b (hexagonal cross section) in a large-diameter fastening head 51b of a relatively large-diameter third socket bolt 50b (third socket-type fastener, for example, M16 equivalent). The convex surface which fits in is formed. In this case, the outer wall surface on the main guide space 10 side in the base 1 can also be used as a male outer wall surface having a tool function.

  As shown in FIG. 2, the first movable body 21 has a hexagonal bar shape having an end 21f, and the first male outer wall surface 22 of the first movable body 21 has a hexagonal shape in cross section. The second movable body 31 has a hexagonal cylindrical shape, and the second male outer wall surface 32 of the second movable body 31 has a hexagonal shape in cross section. The large-diameter male outer wall surface 12 of the base 1 has a hexagonal shape in cross section. That is, the distal end portion of the base portion 1 has a hexagonal cylindrical shape. As shown in FIG. 3, the first male outer wall surface 22, the second male outer wall surface 32, and the large-diameter male outer wall surface 12 are arranged coaxially around the axis P of the base 1, and They are similar to each other. The diameter size of the hexagonal cross section increases in the order of the first male outer wall surface 22, the second male outer wall surface 32, and the large-diameter male outer wall surface 12. As shown in FIG. 3, the first male outer wall surface 22 has sides 221 to 226 that form a hexagonal cross section. The second male outer wall surface 32 has sides 321 to 326 that form a hexagonal cross section. The large-diameter male outer wall surface 12 has sides 121 to 126 that form a hexagonal cross section.

  As shown in FIG. 1, a holder 6 that holds the movable body 2 is provided on the base 1. The holder 6 holds the first movable body 21 and the second movable body 31 so as to be slidable in the arrow P1 direction and the arrow P2 direction. The first movable body 21 has a slit-shaped first recess 25 extending in the sliding direction. The second movable body 31 has a slit-shaped second recess 35 extending in the sliding direction. The holder 6 is a rod-like member that has a pin shape extending along a direction (arrow P3 direction) intersecting the slide direction (arrow P1 direction). The holder 6 is detachably inserted and fixed in the holding hole 15 of the base 1, and is inserted into the first recess 25 of the first movable body 21 and the second recess 35 of the second movable body 31. In this case, since the first recess 25 and the second recess 35 are slit-shaped extending along the axis P, the first movable body 21 and the second movable body 31 can be slid along the directions of the arrows P1 and P2. ing. As can be understood from FIG. 1, when the first movable body 21 and the second movable body 31 move in the direction away from the base portion 1 (the direction of the arrow P <b> 1), the first stopper portion 26 and the second movable body of the first movable body 21. The second stopper portion 36 of the body 31 hits the holder 6. For this reason, dropping off of the first movable body 21 and the second movable body 31 from the base 1 is prevented.

  A method for using the male tool of this embodiment will be described. In a normal state, as shown in FIG. 1, the second male outer wall surface 32 of the second movable body 31 is more in the direction of the arrow P <b> 1 than the large-diameter male outer wall surface 12 of the base 1 by the biasing force of the second coil spring 42. It protrudes and is exposed. Further, as shown in FIG. 1, the first male outer wall surface 22 of the first movable body 21 having a small diameter size is more than the second male outer wall surface 32 of the second movable body 31 due to the biasing force of the first coil spring 41. Is exposed in the direction of arrow P1.

  When a relatively small-diameter first socket bolt 50s (first socket-type fastener, for example, an M8 equivalent) is fastened, the male tool of this embodiment is moved in the direction of arrow P1, as shown in FIG. By moving the first socket head bolt 51s toward the first fastening head 51s of the first socket bolt 50s having a small diameter.

  As a result, the first male outer wall surface 22 of the first movable body 21 that protrudes most forward is fitted into the first fastening hole 52s of the first fastening head 51s of the first socket bolt 50s having a small diameter. As shown in FIG. 1, since the second male outer wall surface 32 and the base 1 of the second movable body 31 do not touch the first fastening head 51s of the first socket bolt 50s, the second movable body 31 and the base 1 are not touched. It is avoided that it gets in the way. In this state, the base 1 is rotated around its axis P by the fingertip or the rotary tool 700. In this case, if the rotary tool 700 is fitted in the engaging portion 14 on the other end side of the base 1 and the base 1 is rotated around the axis P by the rotary tool 700, the first socket bolt 50s is rotated. Easy. However, the base 1 may be rotated around the axis P without fitting the rotary tool 700 to the engaging portion 14. In this case, as can be understood from FIG. 1, an interval LA between the first socket bolt 50s and the second movable body 31 is secured. For this reason, an operator or a visual sensor can visually recognize the fitting state between the first male outer wall surface 22 of the first movable body 21 and the first fastening hole 52s of the first socket bolt 50s, and the fastening work proceeds. You can see the situation.

  By the way, the male tool of this embodiment is often pressed too strongly against the first fastening head 51s of the first socket bolt 50s having a small diameter. In this case, while fitting the first male outer wall surface 22 of the first movable body 21 into the first fastening hole 52s of the first socket bolt 50s, the second movable body 31 retracts in the direction of the arrow P2 and the base 1 Retract into the main guide space 10. For this reason, the fitting between the first male outer wall surface 22 of the first movable body 21 and the first fastening hole 52s of the first socket bolt 50s is maintained well.

  Also, as shown in FIG. 5, when fastening a relatively medium-diameter second socket bolt 50m (second socket-type fastener, for example, M12 equivalent), the male tool of this embodiment is moved to the arrow P1. It moves in the direction and presses it against the second fastening head 51m of the second socket bolt 50m having a medium diameter. As a result, the second male outer wall surface 32 of the second movable body 31 is fitted into the second fastening hole 52m of the second fastening head 51m of the second socket bolt 50m. In this case, as shown in FIG. 5, the end 21f of the tip of the first movable body 21 hits the bottom surface 53m of the second fastening hole 52m of the second fastening head 51m of the second socket bolt 50m. Therefore, as shown in FIG. 5, the first movable body 21 retracts in the second guide space 33 of the second movable body 31 in the direction of the arrow P <b> 2 against the urging force of the first coil spring 41. 2 It becomes a non-protruding state with respect to the movable body 31. In this state, the base 1 is rotated around its axis P. In this case, if the rotary tool 700 is fitted into the concave engaging portion 14 on the other end side of the base 1 and the base 1 is rotated by the rotary tool 700, the rotation operation of the second socket bolt 50 is easily assisted. It becomes. However, the base 1 may be rotated around the axis P without fitting the rotary tool 700 to the engaging portion 14. In this case, as can be understood from FIG. 5, a distance LB between the second socket bolt 50 m and the tip of the base 1 is ensured. For this reason, an operator or a visual sensor can visually recognize the fitting state between the second male outer wall surface 32 of the second movable body 31 and the second fastening hole 52m of the second socket bolt 50m, and the fastening work proceeds. You can see the situation.

  When the above-described fastening operation is completed, if the male tool of the present embodiment is moved in the direction of the arrow P2 to be detached from the second fastening head 51m of the second socket bolt 50m having a medium diameter, the first coil spring 41 is moved. Due to the urging force, the first male outer wall surface 22 of the first movable body 21 is automatically protruded and exposed in the direction of the arrow P1 from the second male outer wall surface 32 of the second movable body 31.

  As described above, when the second male outer wall surface 32 of the relatively large-diameter second movable body 31 out of the first movable body 21 and the second movable body 31 is used, the second male outer wall surface 32 is used. The relatively small-diameter first male outer wall surface 22 is retracted and concealed in the second guide space 33 of the relatively large-diameter second movable body 31. For this reason, when the second male outer wall surface 32 of the second movable body 31 is used, the second movable body 31 having a smaller diameter than the second movable body 31 is prevented from interfering.

  Further, as shown in FIG. 6, when fastening a relatively large third socket bolt 50b (for example, M16 equivalent), the male tool of this embodiment is fastened with the third socket bolt 50b. Press against the head 51b. As a result, as shown in FIG. 6, the large-diameter male outer wall surface 12 formed by the outer wall surface of the base 1 is fitted into the large-diameter fastening hole 52b of the large-diameter fastening head 51b of the third socket bolt 50b. . In this case, as shown in FIG. 6, the tip 31f of the second movable body 31 hits the bottom surface 53b of the large-diameter fastening hole 52b of the large-diameter fastening head 51b of the third socket bolt 50b. Retracts into the main guide space 10 of the base 1 in the direction of the arrow P2 against the biasing force of the second coil spring 42. For this reason, the second movable body 31 is in a non-projecting state with respect to the base 1.

  Further, as shown in FIG. 6, the end 21f of the tip of the first movable body 21 similarly hits the bottom surface 53b of the large-diameter fastening hole 52b of the large-diameter fastening head 51b of the third socket bolt 50b. The first movable body 21 retracts into the second guide space 33 of the second movable body 31 in the direction of arrow P <b> 2, and the first movable body 21 is in a non-projecting state with respect to the second movable body 31 and the base 1. That is, as shown in FIG. 6, the end 21 f of the first movable body 21 and the end 31 f of the second movable body 31 are retracted and become the same position in the axial length direction of the base 1. In this state, the base 1 is rotated around its axis P by the fingertip or the rotary tool 700. In this case, if the rotary tool 700 is fitted in the concave engaging portion 14 on the other end side of the base 1 and the base 1 is rotated by the rotary tool 700, the rotation operation of the third socket bolt 50b is easy. However, the base 1 may be rotated around the axis P without fitting the rotary tool 700 to the engaging portion 14. In this case, as can be understood from FIG. 6, an interval LC between the third socket bolt 50 b and the terminal end 12 x of the large-diameter male outer wall surface 12 of the base 1 is ensured. For this reason, the fitting state between the large-diameter male outer wall surface 12 of the base 1 and the third fastening hole 52b of the third socket bolt 50b can be visually recognized, and the progress of the fastening operation can be visually confirmed.

  Thus, when using the relatively large large-diameter male outer wall surface 12 among the first male outer wall surface 22, the second male outer wall surface 32, and the large-diameter male outer wall surface 12, than the large-diameter male outer wall surface 12. The relatively small-diameter second male outer wall surface 32 is retracted and concealed inside the main guide space 10 of the base 1. Similarly, the first male outer wall surface 22 having a relatively small diameter is retracted and concealed inside the second guide space 33 and thus inside the main guide space 10 of the base 1. For this reason, when the large-diameter male outer wall surface 12 of the base 1 is used, the second male outer wall surface 32 and the first male outer wall surface 22 having a smaller diameter than the base 1 are prevented from becoming an obstacle.

  Further, when the third socket bolt 50b having a relatively large diameter is rotated and fastened, a torque for rotating the large diameter base portion 1 around the axis P is applied. Further, when the second socket bolt 50 having a medium diameter is rotated and fastened, a torque for rotating the second movable body 31 having a medium diameter around the axis P is applied. In this case, as shown in FIG. 1, torque is transmitted from the outer peripheral side of the large-diameter base portion 1 to the second movable body 31 having the medium diameter via the holder 6, and therefore an excessive load is applied to the second medium- Acting on the movable body 31 is suppressed. Further, when the small-diameter socket bolt 50s is rotated and fastened, torque for rotating the small-diameter first movable body 21 around the axis P is applied. In this case, since torque is transmitted from the outer peripheral side of the large-diameter base 1 to the first movable body 21 having a small diameter via the holder 6, it is possible to suppress an excessive load from acting on the first movable body 21 having a small diameter. Is done. The torque is maximized when the large-diameter third socket bolt 50b is fastened. In this case, since the first movable body 21 with the small diameter and the second movable body 31 with the medium diameter are retracted inside the base 1, the possibility of damaging the first movable body 21 and the second movable body 31 is reduced. .

  As described above, the male tool according to this embodiment is fitted in the concave fastening holes 52s, 52m, 52b of the plurality of socket bolts 50s, 50m, 50b as described above. By rotating, the plurality of socket bolts 50s, 50m, 50b can be rotated and fastened individually. Furthermore, according to the present embodiment, unlike Patent Document 2, a structure in which six plate-like portions are arranged in a hexagonal shape is not employed, so that the structure can be prevented from becoming complicated. Furthermore, according to the present embodiment, the movable bodies 21 and 31 are urged by the first coil spring 41 and the second coil spring 42 and held in a fixed position when not in use such as during storage. For this reason, the possibility of the movable bodies 21 and 31 floating can be reduced, damage to the movable bodies 21 and 31 when not in use such as storage is suppressed, and the protection of the movable bodies 21 and 31 can be improved. it can. According to the present embodiment, since the holder 6 is detachably inserted into the holding hole 15 of the base 1, the first movable body 21 and the second movable body 31 can be removed by removing the holder 6 from the base 1. It can also be exchanged.

  A second embodiment of the present invention will be described with reference to FIG. The present embodiment has basically the same configuration as the first embodiment. Parts having similar functions are denoted by the same reference numerals. However, the movable body 21 according to the first embodiment is abolished, and only the movable body 31 is provided. As shown in FIG. 7, the male tool of this embodiment includes a base 1, a male movable body 31, and a coil spring 42 that biases the movable body 31 in the direction of arrow P <b> 1.

  Also in the present embodiment, similarly to the first embodiment, the plurality of socket bolts 50m and 50b are fitted into the concave fastening holes 52m and 52b, and the plurality of socket bolts 50m and 50b are rotated and fastened individually. be able to. Furthermore, according to the present embodiment, as in the first embodiment, the structure can be prevented from becoming complicated. Further, the movable body 31 is urged by the coil spring 42 and held in a fixed position when not in use such as during storage. For this reason, the possibility that the movable body 31 may idle when not in use can be reduced.

  A second embodiment of the present invention will be described with reference to FIGS. The present embodiment has basically the same configuration and operational effects as the first embodiment. The male tool of the present embodiment is for tightening a socket bolt (socket-type fastener) having a fastening head having a fastening hole. As shown in FIG. 8, the male tool of the present embodiment biases the base 1 having the guide portion 17, the plurality of male movable bodies 2, and the movable body 2 to the use position, that is, in the direction of the arrow P <b> 1. And a biasing element 4. The convex guide portion 17 of the base portion 1 holds the movable body 2 and extends coaxially along the axis P in the central region of the base portion 1. The guide portion 17 has a hexagonal bar shape in cross section. A relatively small-diameter male outer wall surface 18 having a relatively small diameter, which is a male tool, is formed at the tip of the guide portion 17. The small-diameter male outer wall surface 18 has a hexagonal shape in cross section. As a result, as shown in FIG. 10, the small-diameter male outer wall surface 18 has a first fastening hole in the first fastening head 51s of the small-diameter first socket bolt 50s (first socket-type fastener, for example, M8 equivalent). The convex surface which fits 52s is formed.

  As shown in FIG. 8, the movable body 2 is larger than the first movable body 21 having the first male outer wall surface 22 having a relatively medium diameter and the first male outer wall surface 22 of the first movable body 21. And a second movable body 31 having a second male outer wall surface 32 having a diameter size. Each of the first movable body 21 and the second movable body 31 can serve as a male tool. The first movable body 21 and the second movable body 31 are provided on the guide portion 17 of the base 1 so as to be slidable in the directions of arrows P1 and P2. As a result, the first movable body 21 and the second movable body 31 can be switched between the use position and the retracted position. As shown in FIG. 8, a protective cover 1M having a cylindrical shape is provided.

  The urging element 4 is formed of a first coil spring 41 as a first individual urging element and a second coil spring 42 as a second individual urging element. The diameter of the first coil spring 41 is indicated as D1, and the diameter of the second coil spring 42 is indicated as D2 (D1 <D2). The first coil spring 41 is interposed between the ring-shaped seating surface 11 of the base 1 and the end surface 21e of the first movable body 21, and the first movable body 21 is individually directed in the direction of the arrow P1 toward the use position. Energize. The second coil spring 42 is interposed between the seating surface 11 of the base 1 and the end surface 31e of the second movable body 31, and individually urges the second movable body 31 in the direction of the arrow P1 toward the use position. . Since the first movable body 21 and the second movable body 31 are individually urged by the first coil spring 41 and the second coil spring 42 in the base 1 in this way, the first movable body 21 and the second movable body 31 are individually and Can be operated independently.

  As shown in FIG. 11, the first male outer wall surface 22 of the first movable body 21 has a hexagonal shape in cross section. The second male outer wall surface 32 of the second movable body 31 has a hexagonal shape in cross section. The small-diameter male outer wall surface 18 of the base 1 has a hexagonal shape in cross section. As shown in FIG. 11, the small-diameter male outer wall surface 18, the first male outer wall surface 22, and the second male outer wall surface 32 are similar to each other around the axis P. The diameter size of the hexagonal cross section increases in the order of the small-diameter male outer wall surface 18, the first male outer wall surface 22, and the second male outer wall surface 32.

  A method for using the male tool of this embodiment will be described. In a normal state, as shown in FIG. 8, the end 18f of the small-diameter male outer wall surface 18, the end 21f of the first movable body 21, and the end 31f of the second movable body 31 are at the same position in the axial direction. Is arranged. As shown in FIG. 8, when fastening a relatively large third socket bolt 50b (third socket type fastener, for example, an M16 equivalent), the male tool of this embodiment is moved in the direction of arrow P1. The second male outer wall surface 32 of the second movable body 31 is moved to fit into the second fastening hole 52b of the second fastening head 51b of the third socket bolt 50b. In this case, as shown in FIG. 8, the end 31f of the second movable body 31 and the end 21f of the first movable body 21 together with the small-diameter male outer wall surface 18 are the third fastening head of the third socket bolt 50b. It fits in the third fastening hole 52b of 51b. In this case, as shown in FIG. 8, the second movable body 31 and the first movable body 21 do not retract in the direction of the arrow P2. In this state, the base 1 is rotated around its axis P. In this case, if the rotary tool 700 is fitted in the concave engaging portion 14 on the other end side of the base 1 and the base 1 is rotated by the rotary tool 700, the rotation operation of the third socket bolt 50b is easy.

  As shown in FIG. 9, when the second socket bolt 50m (second socket type fastener, for example, M12 equivalent) having a relatively medium diameter is fastened, the male tool of this embodiment is moved in the direction of arrow P1. The first male outer wall surface 22 of the first movable body 21 is fitted into the second fastening hole 52m of the second fastening head 51m of the second socket bolt 50m. In this case, as shown in FIG. 9, the end 31f of the second movable body 31 does not fit into the second fastening hole 52m, hits the ceiling surface 54m of the second fastening head 51m of the second socket bolt 50m, 2 The movable body 31 retracts by retracting in the direction of the arrow P2, and enters a non-projecting state. In this state, the base 1 is rotated around its axis P. In this case, if the rotary tool 700 is fitted into the concave engaging portion 14 on the other end side of the base 1 and the base 1 is rotated by the rotary tool 700, the rotation of the second socket bolt 50m is easy.

  Also, as shown in FIG. 10, when fastening a relatively small-diameter first socket bolt 50s (first socket type fastener, for example, an M8 equivalent), the male tool of this embodiment is moved in the direction of arrow P1. The small-diameter male outer wall surface 18 of the base 1 is fitted into the first fastening hole 52s of the first fastening head 51s of the first socket bolt 50s. In this case, as shown in FIG. 10, the end 21f of the first movable body 21 and the end 31f of the second movable body 31 do not fit into the first fastening hole 52s of the first socket bolt 50s, It hits the ceiling surface 54s of the first fastening head 51s. As a result, the first movable body 21 and the second movable body 31 are retracted by retracting in the direction of the arrow P2, so that they are in a non-projecting state. In this state, the base 1 is rotated around its axis P. In this case, if the rotary tool 700 is fitted in the engaging portion 14 on the other end side of the base 1 and the base 1 is rotated by the rotary tool 700, the rotation operation of the first socket bolt 50 is easy.

  According to the present embodiment, one end of the first coil spring 41 is connected to the end surface 21e of the first movable body 21 by connection means (not shown), and one end of the second coil spring 42 is connected to the second movable body 31. The end face 31e may be connected by connecting means (not shown). In this case, the other end of the first coil spring 41 is connected to the seating surface 11 of the base 1 by a connection means (not shown), and the other end of the second coil spring 42 is connected to the seating surface 11 of the base 1 (not shown). You may decide to connect by. Accordingly, the first movable body 21 and the second movable body 31 are prevented from falling off from the guide portion 17 of the base portion 1. Although not shown, a stopper portion may be provided as appropriate to prevent the first movable body 21 and the second movable body 31 from falling off the base 1.

  As described above, according to the present embodiment, the plurality of socket bolts 50s, 50m, and 50b are fitted into the concave fastening holes 52s, 52m, and 52b, and the plurality of socket bolts 50s, 50m, and 50b are connected to their circumferences. If it is rotated in the direction, it can be individually fastened. Furthermore, according to the present embodiment, the first movable body 21 and the second movable body 31 are urged and held in place by the first coil spring 41 and the second coil spring 42. The possibility that the movable bodies 21 and 31 are idle can be reduced, and damage to the movable bodies 21 and 31 can be suppressed.

  A fourth embodiment of the present invention will be described with reference to FIG. The present embodiment has basically the same configuration and operational effects as the first embodiment. Only different parts will be described below. As shown in FIG. 12, the first male outer wall surface 22, the second male outer wall surface 32, and the large-diameter male outer wall surface 12 have a rectangular cross section, and are coaxial around the axis P of the base 1. And are similar to each other. In the order of the first male outer wall surface 22, the second male outer wall surface 32, and the large-diameter male outer wall surface 12, the diameter of the quadrangular cross section increases. In this case, the cross-sectional shape of the concave fastening holes 52s, 52m, and 52b of the plurality of socket bolts 50s, 50m, and 50b is a quadrangular shape.

  (Other Embodiments) The socket bolts 50s, 50m, and 50b are not limited to the sizes exemplified above, and can be appropriately changed. In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention.

  The present invention can be used for a male tool for fastening a socket type fastener such as a socket bolt.

It is sectional drawing of a male type tool. It is a perspective view of the principal part of a male type tool. It is an end view of one end side of the male tool. It is an end elevation of the other end side of the male tool. It is sectional drawing of the principal part of the male tool which fastens a medium diameter socket bolt. It is sectional drawing of the principal part of the male tool which fastens a large diameter socket bolt. It is sectional drawing of a male type tool concerning another Example. It is sectional drawing of a male tool concerning another Example. It is sectional drawing of the principal part of the male tool which concerns on another Example and fastens a medium diameter socket bolt. It is sectional drawing of the principal part of the male tool which concerns on another Example and fastens a small diameter socket bolt. FIG. 10 is an end view of one end side of a male tool according to another embodiment. FIG. 14 is an end view of one end side of a male tool according to still another embodiment. It is sectional drawing of the male tool in a use condition according to a prior art. It is sectional drawing of the male tool in a use condition according to a prior art.

Explanation of symbols

  1 is a base part, 10 is a main guide space (guide part), 12 is a large-diameter male outer wall surface, 14 is an engaging part, 2 is a movable body, 21 is a first movable body, 22 is a first male outer wall surface, 26 Is a first stopper portion, 31 is a second movable body, 32 is a second male outer wall surface, 36 is a second stopper portion, 4 is a biasing element, 41 is a first coil spring, 42 is a second coil spring, and 50s is a small diameter. The socket bolt (small-diameter socket type fastener), 50m represents a medium-diameter socket bolt (medium-diameter socket-type fastener), and 50b represents a large-diameter socket bolt (large-diameter socket-type fastener).

Claims (15)

A male tool that is fitted into the concave fastening hole of the socket type fastener for fastening a socket type fastener having a concave fastening hole,
A base portion having a male outer wall surface and a guide portion that are fitted into the concave fastening hole of the one socket type fastener;
A movable body having a male outer wall surface having a different diameter size with respect to the male outer wall surface of the base, and provided slidable in one direction and the other direction on the guide portion of the base;
A male tool comprising a biasing element that biases the movable body in one direction. A male tool that is fitted into the concave fastening hole of the socket type fastener for fastening a socket type fastener having a concave fastening hole,
A base having a guide;
A plurality of movable bodies having male outer wall surfaces having different diameter sizes from each other, and provided so as to be slidable in one direction and the other direction on the guide portion of the base portion;
A male tool comprising: a biasing element that biases the plurality of movable bodies in one direction.   3. The male tool according to claim 2, wherein the diameter size of the plurality of movable bodies decreases in a stepwise manner toward the one direction.   4. The movable body according to claim 2, wherein the movable body has a first movable body having a first male outer wall surface that is a male outer wall surface, and a larger diameter size than the first male outer wall surface of the first movable body. And a second movable body having a second male outer wall surface with a male tool.   In any one of Claims 2-4, when using the said male outer wall surface of the said relatively large diameter movable body among the said several movable bodies, the said relatively small diameter movable body is A male tool concealed inside the movable body or the base portion having a relatively large diameter.   6. The male tool according to claim 1, wherein the individual biasing element is a coil spring.   7. The male mold according to claim 2, wherein the biasing element is formed of a plurality of individual biasing elements that bias each of the plurality of movable bodies individually. tool.   The male tool according to claim 1, wherein the guide portion of the base portion is a wall surface forming a guide space having an opening.   The male outer wall surface of the movable body according to any one of claims 1 to 8, wherein a convex surface that fits into the fastening hole of the fastening head of the socket-type fastener is formed. Male tool to do.   The male tool according to claim 1, further comprising: a holder that holds the plurality of movable bodies on the base so as to be slidable.   11. The movable body according to claim 1, wherein the movable body has a recess extending in a sliding direction, and the holding tool is a rod-shaped member extending in a direction intersecting the sliding direction, and the holding A tool is inserted into the recess of the movable body, and a male tool.   The male tool according to any one of claims 1 to 11, wherein the male outer wall surface is formed on the guide portion side of the outer wall surface of the base portion.   The male tool according to any one of claims 1 to 12, wherein the base portion has an engaging portion for rotating the base portion around an axis thereof.   14. The male tool according to claim 1, wherein the engaging portion is formed on a side of the base portion opposite to a protruding direction of the movable portion.   The male tool according to any one of claims 1 to 14, wherein a cross-sectional shape of the male outer wall surface of the movable body is a square shape.

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