JP7118343B2 - socket - Google Patents

Description

The present invention relates to sockets.

When used in combination with a driving tool (for example, a torque wrench, an air pump, an electric tool, etc.), the socket can be used in a narrow space by screwing fasteners such as bolts, screws, nuts, etc. (for example, Patent Document 1). .

The aforementioned Patent Document 1 discloses a technique for fitting a socket and an insertion portion of a drive tool (ratchet wrench). The socket includes an operating portion for tightening a bolt or the like, a fitting portion connected to a driving tool, and a concave portion on the inner wall of the fitting portion. On the other hand, the driving tool has an inserting portion for connecting the socket, and the inserting portion has a positioning ball that can be put in and taken out. In this technique, the socket is prevented from falling off from the drive tool by engaging the positioning ball with the recess.

However, with this technique, the positioning ball or the inner wall of the socket tends to wear out, the socket cannot be stably connected to the insertion part, and there is an unpredictable risk of unintentional loosening or disconnection.

Taiwan Utility Model Publication No. M464273

Impact drivers, impact wrenches and the like are well known as driving tools. The impact driver has an insertion part (chuck) for inserting and mounting a hexagonal bit (φ6.35 mm). On the other hand, a tip tool such as a socket is also inserted into the impact driver. Such a tip tool is provided with a hexagonal bit for insertion into an impact driver, and is made usable by inserting and locking this hexagonal bit into the chuck of the impact driver. However, there is a problem that the hexagonal bit may break because a large torque is applied to the tip tool such as the socket during use.

Next, an impact wrench as a driving tool will be described with reference to FIG. As shown in FIG. 3, the impact wrench 7 has an insertion portion 71 for inserting a tip tool such as a socket. A positioning portion (through hole) 72 is provided in the insertion portion 71 . Usually, a tip tool for an impact wrench (not shown) has a fitting portion having an inner peripheral surface shape corresponding to the outer peripheral surface shape of the insertion portion 71 of the impact wrench 7, and the fitting portion has a through-holes are provided in the horizontal direction (perpendicular direction). When inserting the impact wrench tip tool into the impact wrench 7, the through hole 72 of the impact wrench 7 is aligned with the through hole of the fitting portion of the impact wrench tip tool. A pin (not shown) made of rubber is inserted into both through-holes, and the through-hole of the fitting portion is covered with a rubber O-ring (not shown). This prevents the tip tool for the impact wrench from coming off.

However, the conventional tip tool for an impact wrench requires such a pin and O-ring in order to prevent it from slipping off. In addition, if the O-ring deteriorates and breaks during use of the impact wrench 7, it is likely to come off, resulting in a safety problem. Even if the pin and O-ring are not used, when attaching and detaching fasteners such as bolts and nuts, the impact wrench end tool is pressed against the fasteners, so it is difficult for the impact wrench tip to fall off, but it can be idled. Then, the tip tool for the impact wrench falls out. Therefore, conventional tip tools for impact wrenches generally use a pin and an O-ring.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a socket that can be quickly fitted to an insertion portion of a driving tool.

In order to solve the above-described problems, according to a first aspect of the present invention, at least one positioning portion of a driving tool is fitted into a recessed inserting portion, and a socket body, a switching member, and at least one A socket having two positioning units, wherein the socket body has an axis, an operating portion and a fitting portion arranged in a direction in which the axis extends, and a tightening tool is connected to the operating portion. The fitting portion has a fitting space into which the insertion portion is inserted, and the switching member is movable in the extension direction of the axis and rotatable about the axis. The positioning unit is attached to the fitting portion and has a first receiving portion, a second receiving portion and a positioning member, the first receiving portion being transverse to the axis and extending into the fitting portion. The second accommodating portion is formed in the switching member and faces the fitting portion, the positioning member is movably accommodated in the first accommodating portion, and is a part of the positioning member. protrudes from the first accommodating portion, and when the switching member is in the locked position, the first accommodating portion and the second accommodating portion are displaced from each other, and the positioning member pressed by the switching member A part of the member protrudes from the fitting space and is engaged with and fitted to the positioning portion, and when the switching member is in the open position, the first accommodating portion and the second accommodating portion A socket is provided that overlaps in a direction transverse to an axis, and a portion of the positioning member extends into the second receiving portion but does not extend into the fitting space. .

ADVANTAGE OF THE INVENTION According to this invention, the socket which can be rapidly fitted to the insertion part of a driving tool can be provided. This invention is particularly useful for insertion into an impact wrench.

1 is a perspective view showing a socket according to one embodiment of the invention; FIG. FIG. 2 is an exploded perspective view of FIG. 1; FIG. 4 is an explanatory diagram of a usage state of a socket according to one embodiment of the present invention; FIG. 4 is an explanatory diagram of a usage state of a socket according to one embodiment of the present invention; FIG. 4 is an explanatory diagram of a usage state of a socket according to one embodiment of the present invention; FIG. 4 is an explanatory diagram of a usage state of a socket according to one embodiment of the present invention;

An embodiment of the present invention will be described below with reference to the drawings. In addition, this invention is not limited by this.

Please refer to FIGS. As shown in FIGS. 1 to 6, the socket according to one embodiment of the present invention is fitted to the insertion portion 71 of the drive tool 7. As shown in FIGS. At least one positioning portion 72 is recessed in the insertion portion 71 . The socket comprises at least a socket body 1 , a switching member 2 and at least one positioning unit 3 .

The socket body 1 has an axis 11 , and an operating portion 12 and a fitting portion 13 that are arranged in the extending direction of the axis 11 . Fasteners such as bolts and nuts are connected to the operating portion 12 . The fitting portion 13 has a fitting space 131 into which the insertion portion 71 is inserted. The switching member 2 is movable in the extending direction of the axis 11 and is attached to the fitting portion 13 so as to be rotatable about the axis 11 .

The ratio of the length of the fitting portion 13 parallel to the axis 11 to the length of the operating portion 12 is 0.4 to 0.6. The switching member 2 is fitted in the fitting portion 13 . The distance from the outer peripheral wall 25 of the switching member 2 to the axis 11 is substantially equal to the distance from the outer peripheral wall 25A of the operating portion 12 to the axis 11 .

At least one positioning unit 3 has a first receiving portion 31, a second receiving portion 32 and a positioning member 33 respectively. The first accommodating portion 31 is penetrated by the fitting portion 13 in a lateral direction with respect to the axis 11 (a direction perpendicular to the axis 11). The second housing portion 32 is formed in the switching member 2 and faces the fitting portion 13 .
The positioning member 33 is movably accommodated in the first accommodation portion 31 . A portion of the positioning member 33 protrudes from the first housing portion 31 . Here, the positioning member 33 is a ball (sphere). The first accommodation portion 31 and the second accommodation portion 32 are through holes. The hole diameter of the second receiving portion 32 is smaller than that of the first receiving portion 31 in order to prevent the positioning member 33 from coming off.

When the switching member 2 is in the locked position, the positions of the first housing portion 31 and the second housing portion 32 (relative positions in the direction perpendicular to the axis 11) are shifted. The switching member 2 is pressed against the positioning member 33 while covering the opening of the first accommodating portion 31 . A portion of the positioning member 33 pressed by the switching member 2 protrudes from the fitting space 131 and engages with the positioning portion 72 to be fitted.
When the switching member 2 is in the open position, the first receiving portion 31 and the second receiving portion 32 overlap in a direction transverse to the axis 11 . When the positioning member 33 receives the acting force from the fitting space 131 , a part of the positioning member 33 is extended into the second housing portion 32 but not extended into the fitting space 131 . That is, when the positioning member 33 receives a force in the direction perpendicular to the axis 11 in the fitting space 131 , a portion of the positioning member 33 moves into the second accommodating portion 32 . When the positioning portion 72 is removed from the positioning member 33 , the insertion portion 71 can be extracted from the fitting space 131 .

Although at least one positioning portion 72 is sufficient, the number of positioning portions 72 is two in this embodiment. The two positioning portions 72 are openings that are symmetrically arranged and communicate with each other. At least one positioning unit 3 is sufficient, but the number of positioning units 3 is two in this embodiment. The two positioning units 3 are arranged symmetrically about the axis 11 . When the switching member 2 is in the lock position, the two positioning members 33 are fitted into the two positioning portions 72 respectively.

The modes of the insertion portion 71 and the positioning portion 72 are not limited to this.

Please refer to FIGS. As shown in FIGS. 1 to 6, the switching member 2 is movable in a direction parallel to the axis 11 of the socket body 1 and rotates around the axis 11 (that is, rotates in the circumferential direction of the fitting portion 13). ) is possible. For example, switching between the locked position and the open position of the switching member 2 can be achieved by moving the switching member 2 in a direction parallel to the axis 11, thereby changing the relative positions of the first receiving portion 31 and the second receiving portion 32. can be changed. However, if the relative positions of the first accommodation portion 31 and the second accommodation portion 32 overlap due to vibrations during use of the driving device 7, the switching member 2 may move to the open position unintentionally. , the socket may fall out of the drive device 7 . On the other hand, if the switching member 2 is rotatably attached to the socket body 1 around the axis 11 , the relative positions of the first accommodating portion 31 and the second accommodating portion 32 are arranged parallel to the axis 11 . It is possible to change not only the direction but also the circumferential direction of the fitting portion 13 . In this manner, since the positions of the first accommodation portion 31 and the second accommodation portion 32 are shifted by two different operations, it is possible to prevent the switching member 2 from unintentionally moving to the open position.

The socket includes a positioning member 51. As shown in FIG. The positioning member 51 is positioned in the fitting portion 13 (the positioning member 51 in this embodiment is a ring clamped in the fitting portion 13). The outer diameter of the operating portion 12 is larger than the outer diameter of the fitting portion 13 , and a first step 61 is formed at the intersection of the operating portion 12 and the fitting portion 13 and is parallel to the axis 11 . and a predetermined distance is provided between the first step 61 and the positioning member 51 . The switching member 2 is positioned between the first step 61 and the positioning member 51 . The predetermined distance is greater than the length of the switching member 2 parallel to the axis 11 . The switching member 2 is slidable in the direction of the axis 11 .

A first contact portion 21 and a second contact portion 22 parallel to the axis 11 are provided on both sides of the switching member 2 . The first contact portion 21 is interposed between the second contact portion 22 and the first step 61 .
When the switching member 2 is rotated (rotated in the circumferential direction of the fitting portion 13), the first accommodation portion 31 is arranged in parallel with the axis 11 and linearly with respect to the second accommodation portion 32. When the first contact portion 21 and the first step 61 are brought into contact with each other, the switching member 2 is in the open position, and when the second contact portion 22 and the positioning member 51 are brought into contact with each other, the switching member 2 is the locked position.

The socket body 1 has a first display portion 41 . The first display portion 41 is parallel to the axis 11 and corresponds to the first housing portion 31 . The switching member 2 has a second display portion 42 . A second display portion 42 is parallel to the axis 11 and corresponds to the second housing portion 32 . Therefore, the user can determine the relative positions of the first housing portion 31 and the second housing portion 32 in the circumferential direction of the switching member 2 simply by looking at the first display portion 41 and the second display portion 42 . can know When the switching member 2 is rotated, the relative positions of the first housing portion 31 and the second housing portion 32 in the circumferential direction of the switching member 2 are overlapped (matched) when viewed from the direction of the axis 11. )be able to. By simply rotating the switching member 2 in this manner, the relative positions of the first accommodating portion 31 and the second accommodating portion 32 in the direction parallel to the axis 11 do not overlap (match). , remains in the locked position. The switching member 2 is rotated to align the relative positions of the first accommodating portion 31 and the second accommodating portion 32, and then the switching member 2 is moved in a direction parallel to the axis 11. , the relative positions of the first receiving portion 31 and the second receiving portion 32 in the direction parallel to the axis 11 are matched, the open position is obtained. On the other hand, when viewed from the direction of the axis 11, the relative positions of the first receiving portion 31 and the second receiving portion 32 in the circumferential direction of the switching member 2 may not overlap (match). In this state, even if the switching member 2 is moved in a direction parallel to the axis 11, the relative positions of the first accommodating portion 31 and the second accommodating portion 32 in the circumferential direction of the switching member 2 do not match. , always remains in the locked position.

Preferably, fitting portion 13 has second step 62 and switching member 2 has base portion 23 . Both ends of the elastic member 53 are in contact with the second step 62 and the base portion 23 , and the second contact portion 22 always has a biasing force toward the positioning member 51 . When the external force is no longer applied to the switching member 2, the switching member 2 automatically moves to the locked position, and the socket is quickly attached to the insertion portion 71. As shown in FIG. Then, when the switching member 2 is rotated to change the relative positions of the first accommodating portion 31 and the second accommodating portion 32 in the circumferential direction of the switching member 2 so that they do not overlap, it is possible to achieve the desired result. You can prevent it from coming off. In addition, since the elastic member 53 provides a supporting force to the switching member 2, it is possible to prevent the switching member 2 from moving due to an unintended action of an external force, thereby enhancing stability.

Moreover, the switching member 2 preferably has a shielding portion 24 , and the shielding portion 24 is laterally connected to the second contact portion 22 . When the second contact portion 22 and the positioning member 51 are brought into contact with each other, the shielding portion 24 covers the positioning member 51 in the lateral direction with respect to the axis 11, and prevents the positioning member 51 from being touched by the outside world. The positioning member 51 is stably positioned in the fitting portion 13 .

By the same reason, the first contact portion 21 is laterally connected to the base portion 23 (connected adjacently in the direction parallel to the axis 11 ) and covers the second step 62 . An internal space 27 is formed in the first contact portion 21 , the base portion 23 and the fitting portion 13 . The elastic member 53 is housed in the internal space 27 . The first contact portion 21 protects the elastic member 53 from deformation and is therefore not affected by the outside world.

Moreover, the switching member 2 preferably has a non-slip structure 52 against which the finger portion 8 is pressed. Furthermore, the outer peripheral wall 25 of the switching member 2 has at least one concave portion 26 provided with the second housing portion 32 , and when the switching member 2 is operated by pressing the concave portion 26 with the finger portion 8 , the concave portion 26 is Therefore, the contact area between the switching member 2 and the finger portion 8 is increased, so that the stability is enhanced. In this embodiment, the number of recesses 26 is one, which is an annular groove. At least one recess 26 is sufficient.

In addition, two drill holes 132 may be drilled in the fitting portion 13, and the two drill holes 132 may be arranged symmetrically about the axis 11 to perform different types of mounting.

1 socket body 2 switching member 3 positioning unit 7 driving tool 8 finger portion 11 axis 12 operating portion 13 fitting portion 21 first contact portion 22 second contact portion 23 base portion 24 shield portion 25 outer peripheral wall 25A outer peripheral wall 26 recessed portion 27 internal space 31 first accommodating portion 32 second accommodating portion 33 positioning member 41 first display portion 42 second display portion 51 positioning member 52 non-slip structure 53 elastic member 61 first step 62 second Step 71 Insertion portion 72 Positioning portion 131 Fitting space 132 Drilling hole

Claims (10)

A socket in which at least one positioning portion of a driving tool is fitted in a recessed insertion portion, and which includes a socket body, a switching member, and at least one positioning unit,
The socket body has an axis, and an operating portion and a fitting portion that are arranged in a direction along which the axis extends. has a fitting space for inserting the part,
The switching member is movable in the extending direction of the axis and is attached to the fitting portion so as to be rotatable about the axis,
The positioning unit has a first accommodation portion, a second accommodation portion, and a positioning member, wherein the first accommodation portion is a through hole formed in the fitting portion laterally with respect to the axis, The second accommodation portion is a through hole formed in the switching member in a lateral direction with respect to the axis , the hole diameter of the second accommodation portion being smaller than the hole diameter of the first accommodation portion, and the positioning member is movably accommodated in the first accommodation portion, a portion of the positioning member protrudes from the first accommodation portion,
The switching member is rotated to move the switching member in the direction in which the axis extends in a state in which the first accommodation portion is linearly arranged in the second accommodation portion parallel to the axis. , when the first accommodating portion and the second accommodating portion overlap in a direction transverse to the axis, the switching member is in an open position; otherwise, the switching member is in a locked position;
When the switching member is in the locked position, the positions of the first accommodating portion and the second accommodating portion are displaced, and a portion of the positioning member pressed by the switching member protrudes from the fitting space. , is engaged and fitted with the positioning portion,
A part of the positioning member is accommodated in the second accommodation portion when the switching member is in the open position,
socket. The socket main body has a first display portion, the first display portion being parallel to the axis and corresponding to the first housing portion, and the switching member being a second display portion. 2. The socket according to claim 1, further comprising a display, wherein said second display is parallel to said axis and corresponds to said second receiving portion. A positioning ring is further provided, wherein the positioning ring is positioned in the fitting portion, the outer diameter dimension of the operating portion is larger than the outer diameter dimension of the fitting portion, and the operation portion and the fitting portion intersect each other. A first step is formed at the location, and a predetermined distance parallel to the axis is provided between the first step and the positioning ring , and the switching member is positioned at the first step. and said locating ring , said predetermined distance being greater than the length of said switching member parallel to said axis. A first contact portion and a second contact portion parallel to the axis are provided on both sides of the switching member, and the first contact portion includes the second contact portion and the In a state in which the switching member is interposed between the first step and the switching member is rotated to linearly arrange the first accommodating portion in the second accommodating portion parallel to the axis , When the switching member is moved in the extending direction of the axis so that the first contact portion and the first step are brought into contact with each other, the switching member assumes an open position and contacts the second contact portion. 4. The socket according to claim 3, wherein said switching member assumes a locked position when abutted against said positioning ring . The fitting portion has a second step, the switching member has a base portion, and both ends of the elastic member are in contact with the second step and the base portion, respectively. 5. The socket according to claim 4, wherein said second abutment always has a biasing force toward said positioning ring . 2. The socket according to claim 1, wherein the outer peripheral wall of said switching member has at least one recess in which said second accommodating portion is provided. 2. The socket according to claim 1, wherein said switching member has a non-slip structure against which fingers are pressed. The switching member is fitted in the fitting portion, and the distance from the outer peripheral wall of the switching member to the axis is approximately equal to the distance from the outer peripheral wall of the operating portion to the axis. 1. The socket according to 1. The number of the positioning parts is two, the two positioning parts are openings that are symmetrically arranged and communicate with each other, the number of the positioning units is two, and the two positioning units are arranged around the axis. The two positioning members are arranged symmetrically, and when the switching member is in the locked position, the two positioning members are fitted into the two positioning portions, respectively. socket. The socket body has a first display portion, the first display portion being parallel to the axis and corresponding to the first receiving portion, and the switching member being a second display portion. The second display portion is parallel to the axis and corresponds to the second housing portion, and the outer peripheral wall of the switching member is provided with the second housing portion. The switching member has at least one concave portion, the switching member has a non-slip structure against which fingers are pressed, the switching member is fitted in the fitting portion, and extends from the outer peripheral wall of the switching member to the axis. The distance is substantially equal to the distance from the outer peripheral wall of the operating part to the axis, the number of the positioning parts is two, the two positioning parts are openings arranged symmetrically and communicating with each other, and the positioning unit is 2, the two positioning units are arranged symmetrically about the axis, and when the switching member is in the locking position, the two positioning members are fitted into the two positioning portions, respectively. , the ratio of the length of the fitting portion parallel to the axis to the length of the operating portion is 0.4 to 0.6; The accommodating portion is a through hole, the hole diameter of the second accommodating portion is smaller than the hole diameter of the first accommodating portion, and the fitting portion is provided with two drilled holes. The set holes are arranged symmetrically about the axis, the positioning ring is a ring clamped to the fitting portion, the switching member has a shielding portion, and the shielding portion is the second When the second contact portion and the positioning ring are brought into contact with each other, the shielding portion covers the positioning ring in the lateral direction with respect to the axis, and the first is laterally connected to the base portion and covers the second step, and the first contact portion, the base portion and the fitting portion define an internal space. 6. The socket according to claim 5, wherein said elastic member is accommodated in said internal space, and said recess is one in number and is an annular groove.

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