JP2019155495A - Socket type tool - Google Patents

Abstract

To provide a socket type tool surely holdable in an attitude capable of installing-removing a nut and a washer to a male screw.SOLUTION: The present invention comprises a socket body 2 forming a storage recessed part 20 capable of storing a nut N and a holding structure 3 for holding a washer W in the socket body 2 together with the nut N, in which the holding structure 3 comprises a magnetic substance for attracting one surface of the washer W to an opening end surface 200 forming an opening of the storage recessed part 20 in the socket body 2 and an embracing-holding part 31 for embracing-holding the washer W attracted to the opening end surface 200 by the magnetic substance, and the embracing-holding part 31 comprises a pressing part 312 capable of advancing-retreating to the front of the opening end surface 200, advancing to the front of the opening end surface 200 and pressing the other surface of the washer W attracted to the opening end surface 200 toward the opening end surface 200 side.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a socket-type tool that can collectively hold a nut and a washer attached to and detached from a male screw.

  2. Description of the Related Art Conventionally, a socket type tool used for loosening or tightening a nut has been provided. For example, as disclosed in Patent Document 1, a nut and a washer that are attached to and detached from a male screw (for example, an embedded screw), It is known that can accommodate all of them.

  Such a socket-type tool includes a bottomed cylindrical fastener that can accommodate a nut and a washer, a magnetic body for attracting the washer in the fastener, and a link for confining the nut and the washer in the fastener. It is equipped with.

  The fastener is formed with a circular hole (round hole) that opens at one end surface in the axial direction, and a polygonal hole (polygonal hole) that continues to the back side of the round hole.

  The magnetic body is accommodated in a recess formed in the inner peripheral surface of the round hole, and the washer can be drawn into the round hole by magnetic force. Further, the washer attracted into the round hole by the magnetic body is held in the round hole by the magnetic force of the magnetic body in a state where the outer peripheral side faces the inner peripheral surface forming the round hole in the fastener. The

  The link is rotatably attached to the outer surface of the fastener, and is provided with a washer retaining projection that retracts into and out of the round hole and a nut retaining projection that retracts into and out of the polygonal hole as the rotating operation is performed. Have. The washer restraining protrusion and the nut restraining protrusion are formed sharply so that the thickness decreases toward the distal end side.

  In addition, an annular ring spring is externally fitted to the link, so that the link is always urged toward the radially inner side of the fastener. Therefore, at all times, the washer restraining protrusions are advanced into the round holes, and the nut restraining protrusions are advanced into the polygonal holes.

  According to such a socket-type tool, when a nut and a washer are attached to a male screw, when the nut is inserted into the polygonal hole and the washer is inserted into the round hole, the nut is confined within the polygonal hole by the nut restraining projection. The washer is held in the round hole by the magnetic force of the magnetic body.

  In addition, when removing the nut and washer from the male screw, if the fastener is put on the male screw and the nut, the nut restraining protrusion is moved outward (outside in the diameter direction of the fastener) by the nut reaching the polygonal hole. The washer is retracted from the polygonal hole, and along with this, the washer clamping projection also moves outward and retracts from the round hole.

  When the nut is loosened in this state, the nut moves toward the back side of the polygonal hole, and the washer is drawn into the round hole by the magnetic force of the magnetic body, and the washer is held in the round hole by the magnetic force of the magnetic body. The

Japanese Utility Model Publication No. 4-115542

  By the way, in the conventional socket type tool, the washer is configured to be held in the round hole by the magnetic force of the magnetic body. For example, the socket type tool containing the nut and washer is brought close to the male screw. If the male screw accidentally contacts the washer, the washer is pushed to the back side of the round hole by the male screw and the posture is lost, so that the male screw cannot be inserted into the washer.

  Then, this invention makes it a subject to provide the socket type tool which can be reliably hold | maintained with the attitude | position which can attach or detach a nut and a washer with respect to a male screw in view of this situation.

  The socket-type tool of the present invention includes a socket main body formed with a housing recess capable of accommodating a nut attached to and detached from a male screw, and a holding structure for holding a washer attached to and detached from the male screw together with the nut on the socket main body, The holding structure has a magnetic body for attracting one face of the washer to an opening end face that forms an opening of the housing recess in the socket body, and the washer attracted to the opening end face by the magnetic body. A holding portion, and the holding portion is capable of moving forward and backward with respect to the front of the opening end surface, and advances to the front of the opening end surface and is attracted to the opening end surface. Has a pressing portion that presses toward the opening end face side.

  According to the socket type tool having the above-described configuration, it is possible to temporarily fix the one surface of the washer attracted by the magnetic force of the magnetic body in contact with the opening end surface of the socket body, and in this state, the pressing portion is attached to the opening end surface. When advanced forward, the other surface of the washer is pressed toward the opening end surface by the pressing portion. Therefore, the socket-type tool can be securely held in a posture in which the held washer can be attached to and detached from the male screw by holding the washer between the opening end surface of the socket body and the pressing portion of the holding portion. It has become.

  In the socket-type tool of the present invention, the holding portion is provided on the rotating portion that is rotatably attached to the outer peripheral surface of the socket main body, and is provided in the rotating portion, and with the rotation of the rotating portion. The pressing portion configured to advance and retreat with respect to the front of the opening end surface, and a guide portion provided on the front side of the pressing portion, and the front surface of the guide portion includes the pressing portion In a state where the front end of the opening end is advanced, the socket body is gradually inclined forward from the radially inner side to the radially outer side of the socket body, and the end portion on the radially outer side is the rotation center of the rotating portion. You may make it locate in the said radial direction outer side.

  According to the socket type tool having the above-described configuration, when the socket type tool is abutted against a structure such as a base material provided with a male screw, the top of the guide part positioned at the foremost position in the holding part becomes the structure. Abut.

  At this time, since the top portion of the guide portion is disposed on the outer side in the radial direction with respect to the rotation center of the rotating portion, when the socket-type tool is pressed against the structure, the guide portion has an outer portion in the radial direction. A force directed toward the side is generated, and this force becomes a rotational moment with respect to the holding portion (pressing portion).

  Further, since the front surface of the guide portion is inclined so as to gradually move forward from the radially inner side to the radially outer side in a state where the pressing portion has advanced to the front of the opening end surface, the guide portion There is a gap between the portion inside the top and the structure, and this gap becomes a rotation allowance of the holding portion (pressing portion).

  Therefore, the socket-type tool moves the pressing portion radially outward of the socket body by pressing the guide portion positioned at the foremost position in the holding portion against the structure (that is, pressing the pressing portion on the opening end surface). Therefore, it is possible to prevent the pressing portion from being sandwiched between the socket body and the structure and cannot be retracted from the front of the opening end surface.

  As described above, according to the socket-type tool of the present invention, it is possible to achieve an excellent effect that the nut and the washer can be reliably held in a posture in which the nut and the washer can be attached to and detached from the male screw.

FIG. 1 is a front view of a socket-type tool according to an embodiment of the present invention. FIG. 2 is a bottom view of the socket type tool according to the embodiment. FIG. 3 is an enlarged view of a cross section taken along the line III-III in FIG. 4A is an enlarged view of the holding portion in the advanced state, and FIG. 4B is an enlarged view of the holding portion in the retracted state. (A)-(d) of FIG. 5 is explanatory drawing of the operation | work which attaches a washer, a nut, and a locking device to a male screw with the socket type tool which concerns on the embodiment. (A)-(d) of FIG. 6 is explanatory drawing of the operation | work which removes a washer, a nut, and a locking device from a male screw with the socket type tool which concerns on the embodiment. FIG. 7 is an explanatory diagram of washers, nuts, and locking devices to be handled by the socket type tool according to the embodiment.

  Hereinafter, a socket type tool according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  The socket-type tool according to the present embodiment is used when a nut is tightened or loosened with respect to a male screw, and is configured to hold a washer and a nut collectively. In addition to the washer and the nut, the socket-type tool according to the present embodiment is configured to hold a nut locking device.

  As shown in FIG. 7, the washer W, the nut N, and the locking device T are arranged in order from the proximal end side of the male screw S. In the present embodiment, as an example of the male screw S, an embedded screw provided so as to extend from the structure (base material) B will be described and the following description will be given. However, a washer W using a socket type tool, The object to which the nut N and the locking device T are attached / detached may be a male screw of a different type from the implanted screw.

  The loose stopper T has elasticity and is formed in a cylindrical shape. Further, the inner diameter of the locking device T is smaller than the outer diameter of the male screw S, and when the male screw S is inserted inside, the movement relative to the male screw S (movement of the male screw S in the axial direction) is performed. It has come to be restricted.

  In addition, the loose stop T has an outer diameter on the other side larger than an outer diameter on one side in the axial direction. Therefore, the outer surface of the loose stopper T is formed in a step shape in which the other side protrudes radially outward (outside in the radial direction of the loose stopper T) rather than the one side.

  As shown in FIGS. 1 and 2, the socket-type tool is attached to and removed from the male screw together with the socket main body 2 in which the housing recess 20 capable of accommodating the nut N and the locking device T to be attached to and detached from the male screw is formed. And a holding structure 3 for holding the washer W to the socket body 2.

  The socket body 2 has an external cylindrical shape, and the housing recess 20 is formed so as to open at one end face in the axial direction of the socket body 2. In the present embodiment, the axial direction of the socket body 2 may be referred to as the front-rear direction, and the radial direction of the socket body 2 may be referred to as the inner / outer direction in some cases.

  As shown in FIG. 3, the socket main body 2 according to the present embodiment is formed on the receiving portion 21 that receives the locking member T in the receiving recess 20 and on the front side of the receiving portion 21 (the opening side of the receiving recess 20). And an outer fitting portion 22 that is fitted on the outer peripheral side surface of the nut N, a contact portion 23 that receives (contacts) one surface of the washer W on the front side in the front-rear direction with respect to the outer fitting portion 22, and a holding It has the connection base part 24 for connecting the holding part mentioned later of the structure 3 rotatably, and the connection part 25 for connecting another tool.

  As described above, the housing recess 20 is formed so as to open at the one end surface of the socket body 2. Therefore, the one end surface of the socket body 2 extends around the opening of the housing recess 20. In the present embodiment, the one end surface of the socket body 2 is referred to as an open end surface 200.

  The receiving part 21 is a plane formed so as to face the front in the front-rear direction in the housing recess 20. Further, the receiving portion 21 is formed to be annular along the circumferential direction centering on the center line of the socket body 2.

  The outer fitting portion 22 is formed in a polygonal ring (in the present embodiment, a hexagonal ring) according to the outer peripheral shape of the nut N. The outer fitting portion 22 may not be hexagonal as long as it can be engaged with the outer peripheral side surface of the nut N in the circumferential direction centering on the center line.

  The contact portion 23 according to the present embodiment is configured by the opening end surface 200 of the socket body 2. Therefore, the contact part 23 is an annular flat surface.

  The connection base portion 24 is provided on the outer surface of the socket body 2. More specifically, the connection base portion 24 is formed so as to extend from the outer surface of the socket body 2 toward the outer side in the inner and outer directions. Moreover, the connection base part 24 is comprised so that a holding part may be rotatably connected by the rotating shaft P extended in a tangential direction with respect to the circumferential direction centering on the centerline of the socket main body 2. FIG.

  The connecting portion 25 is provided on the other end face side in the axial direction of the socket body 2 and is configured to be able to connect an operation tool O such as an insulating operation rod, a ratchet wrench, a socket wrench or the like. (See FIG. 5A).

  The holding structure 3 is attracted to the opening end surface 200 by the attracting portion 30 for attracting one surface of the washer W to the opening end surface 200 that forms the opening of the receiving recess 20 in the socket body 2. A holding portion 31 that holds the washer W, and an urging means 32 (see FIG. 4A) that urges the holding portion 31 inward in the inner and outer directions.

  The attracting portion 30 is made of a magnetic material having magnetism (for example, a magnet). Further, the pulling portion 30 according to the present embodiment is provided such that the front end in the front-rear direction is flush with the opening end surface 200 of the socket body 2, and further, the opening end surface 200 of the socket body 2 is used as a reference. It extends toward the rear in the front-rear direction.

  As shown in FIGS. 4 (a) and 4 (b), the holding portion 31 includes a turning portion 310 that is rotatably attached to the outer surface of the socket body 2 via the connection base portion 24, and the turning portion 31. An arm portion 311 extending from the portion 310, a pressing portion 312 that can move forward and backward with respect to the front of the opening end surface 200 and presses the washer W toward the opening end surface 200 of the socket body 2, and the pressing portion 312 And a guide portion 313 for moving in the direction.

  The rotating portion 310 is pivotally supported on the connection base portion 24 by the rotation shaft P. Therefore, the rotation axis P is the rotation center of the rotation unit 310.

  The arm portion 311 is connected to the outer side in the inner / outer direction with respect to the rotating portion 310. Therefore, the arm portion 311 is disposed at a position shifted outward in the inner / outer direction with respect to the rotation axis P.

  The pressing unit 312 is configured to advance and retract with respect to the front of the opening end surface 200 as the rotating unit 310 rotates. In the present embodiment, the state where the pressing portion 312 has advanced to the front of the opening end surface 200 is the advanced state, and the pressing portion 312 is retracted from the front of the opening end surface 200 (disposed from the front of the opening end surface 200). Is referred to as a retracted state.

  The pressing portion 312 is configured to press the other surface of the washer W toward the opening end surface 200 in a state where the pressing portion 312 is switched to the advanced state. That is, the pressing portion 312 is configured to sandwich the washer W in cooperation with the opening end surface 200.

  Note that the pressing portion 312 according to the present embodiment is configured by an end face located on the inner side in the inner and outer directions of the arm portion 311. Further, the pressing portion 312 according to the present embodiment is inward in the radial direction in a state where the pressing portion 312 is switched to the advanced state, and the front side in the front-rear direction is positioned on the inner side in the radial direction than the rear side. Therefore, the washer W in contact with the opening end surface 200 can be pressed toward the opening end surface 200 so as to be held from the outer side in the radial direction.

  As described above, the pressing portion 312 is configured to press the washer W toward the inner side in the radial direction and the rear side in the front-rear direction.

  The guide part 313 is provided at the tip of the arm part 311. On the front surface of the guide portion 313 (the surface disposed toward the front side in the front-rear direction), in a state where the pressing portion 312 is switched to the advanced state, from one end on the inner side in the inner and outer directions to the outer side. The inclined surface 313a which inclines toward the front side in the said front-back direction as it goes to the other end of is included. In addition, the one end of the inclined surface 313a is a top portion 313b positioned at the foremost position in the guide portion 313 in a state where the pressing portion 312 is switched to the advanced state.

  The socket body 2 of the present embodiment is provided with a plurality of holding portions 31. The plurality of holding portions 31 are formed so as to be arranged at intervals in the circumferential direction of the outer peripheral surface of the socket body 2. In the present embodiment, the three holding portions 31 are formed so as to be arranged at equal intervals in the circumferential direction of the outer peripheral surface of the socket body 2 (see FIG. 3).

  The urging member is configured to urge the pressing portion 312 directly or indirectly toward the radially inner side of the socket body 2. The urging member according to the present embodiment urges the rotating portion 310 so that the pressing portion 312 moves inward in the radial direction.

  The configuration of the socket type tool 1 according to the present embodiment is as described above. Then, the usage method of the socket type tool 1 which concerns on this embodiment is demonstrated.

  First, a method of attaching the washer W, the nut N, and the locking tool T to the male screw S using the socket type tool 1 will be described.

  As shown in FIG. 5 (a), the washer W, the nut N, and the loose stopper T attached to the male screw S are set on the socket-type tool 1.

  More specifically, the loose stopper T is inserted into the housing recess 20, and the loose stopper T is abutted against the receiving portion 21 in the front-rear direction.

  Next, the nut N is inserted into the outer fitting portion 22 in the housing recess 20. Thus, when the socket body 2 is rotated around its own center line, the outer peripheral side surface of the nut N and the inner peripheral side surface of the outer fitting portion 22 are engaged.

  Then, the washer W is held on the opening end surface 200 of the socket body 2 by the holding structure 3. In this embodiment, when the pressing portion 312 is switched to the advanced state in a state where one surface of the washer W is in contact with the opening end surface 200, the washer W is sandwiched between the opening end surface 200 and the pressing portion 312 (see FIG. 4 (a)).

  In the present embodiment, the plurality of (three) holding portions 31 are arranged at equal intervals in the circumferential direction of the outer peripheral surface of the socket body 2, so that the washer W is concentric or substantially concentric with the socket body 2. Accordingly, the washer W is also concentric or substantially concentric with respect to the looseness stop T and the nut N in the socket body 2.

  Then, the opening end surface 200 side of the socket body 2 is brought close to the male screw S, the male screw S is inserted into the washer W, and the tip of the male screw S is abutted against the nut N.

  When the socket body 2 is rotated in this state (when the socket body 2 is rotated in the circumferential direction around the center line of the socket body 2), the nut N is screwed into the male screw S, and when the socket body 2 is further rotated, the nut N Is fastened to the male screw S.

  Further, as the nut N moves to the base end side of the male screw S as it is tightened to the male screw S, the socket body 2 also moves to the base end side of the male screw S as the male screw S moves. Let At this time, since the locking member T is pushed to the front side (the base end side of the male screw S) by the receiving portion 21, the male screw S is provided inside the locking device T as shown in FIG. It is inserted.

  And if the guide part 313 located ahead of the socket main body 2 is pressed against the base material B, as shown in FIG.5 (c), the press part 312 will move to the outer side in the said inside / outside direction. That is, the pressing portion 312 is switched to the retracted state.

  More specifically, as shown in FIG. 4A, when the socket-type tool 1 is abutted against the base material B or the like with the holding portion 31 at the top (the most forward direction), The top portion 313 b of the guide portion 313 located at the foremost position in the holding portion 31 abuts on the base material B.

  At this time, since the top portion 313b of the guide portion 313 is disposed on the outer side in the radial direction with respect to the rotation center of the rotation portion 310, when the socket-type tool 1 is pressed against the base material B, the guide portion 313 is moved to the guide portion 313. Generates a force toward the outer side in the radial direction, and this force becomes a rotational moment with respect to the holding portion 31 (pressing portion 312).

  Further, the front surface of the guide portion 313 is inclined so as to gradually move forward from the radially inner side to the radially outer side in a state where the pressing portion 312 has advanced to the front of the opening end surface 200. A gap is formed between the portion inside the top portion 313b of the guide portion 313 and the base material B, and this clearance becomes a rotation allowance of the holding portion 31 (pressing portion 312). When the outward force in the radial direction generated in the guide portion 313 exceeds the urging force by the urging member, the pressing portion 312 moves outward in the inner / outer direction as shown in FIG. 4B. .

  As described above, in the socket-type tool 1, the guide portion 313 located in the foremost position in the holding portion 31 abuts on the base material B, and the pressing portion 312 starts to move outward in the radial direction. Thus, the holding state of the washer W by the pressing portion 312 is released when the pressing portion 312 is switched from the advanced state to the retracted state.

  After the nut N is completely tightened with respect to the male screw S, if the socket body 2 is pulled, the washer W, the nut N, and the locking device T are connected to the male screw S as shown in FIG. Only the socket-type tool 1 can be pulled away from the male screw S while being attached to the external screw S.

  On the other hand, when removing the washer W, the nut N, and the locking device T attached to the male screw S, the socket body 2 is connected to the male screw S and the locking device as shown in FIGS. 6 (a) to 6 (b). Put T and nut N on. Along with this, the receiving portion 21 abuts against the loosening stop T in the front-rear direction, and the outer peripheral side surface of the nut N is fitted to the inner peripheral side surface of the outer fitting portion 22.

  When the top portion 313b of the guide portion 313 is pressed against the washer W or the base material B, the pressing portion 312 is switched from the advanced state to the retracted state (see FIGS. 4A and 4B).

  When the socket body 2 is rotated to loosen the nut N, the nut N moves to the tip side of the male screw S (the back side of the housing recess 20). Since the magnetic force of the attracting portion 30 acts on the washer W, when the entire nut N enters the housing recess 20, the washer W brought one surface into contact with the opening end surface 200 as shown in FIG. In this state, the socket body 2 is temporarily fixed.

  Further, when the socket-type tool 1 is pulled while loosening the nut N, the guide portion 313 is separated from the base material B. Accordingly, when the pressing portion 312 is moved inward in the radial direction by the biasing force of the biasing member, and the pressing portion 312 is switched from the retracted state to the advanced state, as shown in FIG. The washer W is sandwiched (held) by the pressing portion 312 and the opening end surface 200.

  Then, after removing the nut N from the male screw S, the washer W, the nut N, and the locking device T can be removed from the male screw S by pulling the socket-type tool 1.

  As described above, in the socket-type tool 1 according to the present embodiment, one surface of the washer W attracted by the magnetic force of the attracting portion 30 can be temporarily fixed in a state where the one surface is in contact with the opening end surface 200 of the socket body 2. . At this time, the washer W and the nut N are concentric or substantially concentric (that is, the through hole of the washer W and the screw hole of the nut N are aligned in the front-rear direction).

  Then, when the pressing portion 312 is switched to the advanced state, the other surface of the washer W is pressed toward the opening end surface 200 by the pressing portion 312, and the opening end surface 200 of the socket body 2 and the pressing portion 312 of the holding portion 31. The washer W can be clamped by this, whereby the backward movement of the washer W in the front-rear direction is restricted by the opening end surface 200, and the forward movement of the washer W in the front-rear direction is restricted by the pressing portion. Limited by 312.

  Therefore, the socket-type tool 1 can be reliably held in a posture in which the nut N and the washer W can be attached to and detached from the male screw S.

  Further, in the socket type tool 1 according to the present embodiment, the guide portion 313 (the top portion 313b and the inclined surface 313a) located on the foremost side in the front-rear direction is in contact with a structure such as the base material B and the pressing portion. Since 312 begins to move outward in the radial direction, it is possible to prevent the pressing portion 312 from being sandwiched between the socket body 2 and the structure and not retracted from the front of the opening end surface 200.

  Furthermore, in the socket-type tool 1 according to the present embodiment, when the locking device T is inserted into the socket body 2 and then the nut N is inserted, the locking device T is received by the receiving portion 21, Further, the nut N enters the fitting peripheral surface on the front side of the receiving portion 21 (opening end side of the socket body 2), and in this state, the washer W is held by the holding structure 3 at a position corresponding to the opening region. Since the front side of the nut N is blocked by the washer W, the nut N and the looseness stop T arranged on the back side of the nut N are held in the socket body 2.

  Therefore, the socket-type tool 1 can hold the nut N and the washer W together with the nut N for the nut N together.

  Furthermore, in the socket-type tool 1 according to the present embodiment, the opening end surface 200 is formed flat, and the holding structure 3 is configured to hold the washer W in contact with the opening end surface 200. The washer W in a state where one surface is in contact with the 200 can be held, and thereby, a state in which the male screw S can be inserted straight into the washer W can be maintained.

  Furthermore, the holding structure 3 has a pulling portion 30 that attracts the washer W to the opening end surface 200 by magnetism, and the pulling portion 30 is disposed at a position that is flush with the opening end surface 200 of the socket body 2. And the other end opposite to the one end, and the other end located on the rear side of the opening end surface 200 of the socket body 2. Is disposed at a position flush with the opening end surface 200 of the socket body 2, the washer W can be held without being inclined with respect to the opening end surface 200. Moreover, since the other end of the attracting part 30 is located behind the opening end surface 200 of the socket body 2, the movement of the nut N in the accommodating recess 20 is limited by the magnetic force of the attracting part 30. Can do.

  Moreover, since the structure which switches the pressing part 312 from the advancing state to the retracted state by pressing the guide part 313 against the structure is adopted, the pressing part 312 is moved by the movement of the nut N or the locking device T in the housing recess 20. There is no switching from the advanced state to the retracted state. Therefore, the socket-type tool 1 according to the present embodiment can prevent the pressing portion 312 from switching from the advanced state to the retracted state at an unintended timing during the attaching / detaching operation of the washer W, the nut N, and the locking device T. This prevents the washer W, the nut N, and the looseness stopper T from falling off.

  Furthermore, in the socket type tool 1 according to the present embodiment, a plurality (three) of holding portions 31 are formed so as to be arranged at equal intervals in the circumferential direction of the outer peripheral surface of the socket body 2. Since the washer W is pressed against the opening end surface 200 of the socket body 2 by the pressing portion 312 of the holding portion 31 so as to be held from the outer side in the radial direction, the washer W is loosened in the socket body 2 and the socket body 2. It becomes easy to arrange concentrically or substantially concentrically with respect to the stopper T and the nut N. Therefore, the socket-type tool 1 can easily insert the male screw S into the washer W, the nut N, and the locking device T. As described above, the pressing portion 312 also plays a role of positioning the washer W in the radial direction.

  Note that the socket type tool 1 of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

  In the said embodiment, although the accommodation recessed part 20 of the socket main body 2 was formed so that the nut N and the locking tool T could be accommodated, it is not limited to this structure. For example, the accommodating recess 20 may be configured to accommodate only the nut N.

  In the above embodiment, the socket main body 2 is provided with the three holding portions 31, but is not limited to this configuration. For example, the socket main body 2 may be provided with one or two holding portions 31 or may be provided with four or more holding portions 31.

  The socket-type tool 1 of the above embodiment is configured such that an operation tool O (the above-described insulation operation rod, ratchet wrench, torque wrench, etc.) for a user to pick up and operate is connected to a connection portion 25 of the socket body 2. However, the present invention is not limited to this configuration. For example, the socket main body 2 may be integrally provided with an operation unit for a user to take and operate.

  In the above embodiment, the attracting portion 30 is provided such that the front end in the front-rear direction is flush with the opening end surface 200 of the socket body 2, but is not limited to this configuration. For example, if the pulling part 30 can prevent the posture of the nut N from collapsing (that is, if the surface of the nut N can be maintained in the front-rear direction), the front end of the pulling part 30 May be located on the front side or the rear side of the opening end surface 200 of the socket body 2.

  In the said embodiment, although the arm part 311 was formed in the rod shape, it is not limited to this structure. For example, when the pressing portion 312 is switched to the advanced state, the top portion 313b of the guide portion 313 is configured to be disposed on the outer side in the radial direction from the rotation center of the rotating portion 310. For example, the arm 311 may be bent or curved. In this case, it is preferable that the arm portion 311 has such a rigidity that it does not bend when the guide portion 313 is pressed against a structure such as the base material B.

  Although not particularly mentioned in the above embodiment, the opening end face 200 may be formed with a counterbore capable of accommodating the nut N around the opening of the accommodating recess 20.

  DESCRIPTION OF SYMBOLS 1 ... Socket type tool, 2 ... Socket main body, 3 ... Holding structure, 20 ... Housing recessed part, 21 ... Receiving part, 22 ... Outer fitting part, 23 ... Contact part, 24 ... Connection base part, 25 ... Connection part, 30 ... attracting part, 31 ... holding part, 32 ... biasing means, 200 ... opening end face, 310 ... rotating part, 311 ... arm part, 312 ... pressing part, 313 ... guide part, 313a ... inclined surface, 313b ... Top, B ... Base material, N ... Nut, O ... Tool, P ... Rotating shaft, T ... Loose stop, W ... Washer

Claims (2)

  A socket body formed with a housing recess capable of accommodating a nut to be attached to and detached from a male screw, and a holding structure for holding the washer to be attached to and detached from the male screw together with the nut on the socket body, the holding structure comprising: A magnetic body for attracting one surface of the washer to an opening end surface forming an opening of the housing recess in the socket body; and a holding portion for holding the washer attracted to the opening end surface by the magnetic body. The holding portion is capable of moving forward and backward with respect to the front of the opening end surface, and advances to the front of the opening end surface, with the other surface of the washer attracted to the opening end surface facing the opening end surface. A socket-type tool having a pressing part for pressing.   The holding part is provided on the rotating part so as to be rotatably attached to the outer peripheral surface of the socket main body, and is provided on the rotating part, and with respect to the front of the opening end face as the rotating part rotates. The pressing portion configured to advance and retreat, and a guide portion provided in front of the pressing portion, and the front surface of the guide portion is in a state where the pressing portion has advanced to the front of the opening end surface. , The socket body is gradually inclined forward from the radially inner side to the radially outer side, and the radially outer end is positioned on the radially outer side of the rotation center of the rotating part. The socket type tool according to claim 1.

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