CN115582797A - Sleeve for rotary tool - Google Patents
Sleeve for rotary tool Download PDFInfo
- Publication number
- CN115582797A CN115582797A CN202210107954.7A CN202210107954A CN115582797A CN 115582797 A CN115582797 A CN 115582797A CN 202210107954 A CN202210107954 A CN 202210107954A CN 115582797 A CN115582797 A CN 115582797A
- Authority
- CN
- China
- Prior art keywords
- groove
- hole
- sleeve
- rotary tool
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
Abstract
The invention provides a sleeve for a rotary tool, which prevents a pin connected with an insertion block of the rotary tool from falling off when the sleeve is assembled and disassembled relative to the rotary tool. The sleeve for a rotary tool is provided with a 2 nd groove formed in parallel with the 1 st groove into which the O-ring is fitted and in the circumferential direction on the outer peripheral surface of a connecting portion provided to the cylindrical body portion, and the 2 nd groove is formed at a position overlapping with the 1 st through-hole as viewed in the axial direction and is formed within a range in which an imaginary line extending from the cylindrical axis toward the 1 st through-hole is shifted by ± 45 degrees or more and less than 90 degrees around the cylindrical axis.
Description
Technical Field
The present invention relates to a sleeve for a rotary tool.
Background
Conventionally, an impact wrench is known as a rotating tool for fastening a bolt, a nut, or the like. The impact wrench is configured such that a socket into which a bolt or the like is fitted is detachable. The socket is detachable, and therefore, various kinds of sockets for preventing the socket from falling off from the impact wrench during use of the impact wrench have been proposed so far.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2013-146818
Disclosure of Invention
Problems to be solved by the invention
In patent document 1, when the socket is attached to and detached from the impact wrench, the entire O-ring needs to be moved from the groove to insert and remove the pin. Since the through-hole into which the pin is inserted is open on the left and right sides of the main body shaft, when the O-ring is moved from the groove, both the left and right openings are exposed. In this way, for example, when the pin is pulled out, if the entire O-ring is moved in a state where one opening of the through hole is directed downward, there is a problem as follows: the pin may fall from the downward opening, and the work efficiency may be lowered.
Accordingly, an object of the present invention is to provide a socket for a rotary tool, which prevents a pin connected to an insertion block of the rotary tool from dropping when the socket is attached to and detached from the rotary tool.
Means for solving the problems
The present invention is a socket for a rotary tool, comprising a cylindrical body part having a socket part at one end and a connection part at the other end to which the rotary tool is connected, the connection part comprising: an insertion hole formed along a cylindrical axis of the main body, into which an insertion block of the rotary tool is inserted; a 1 st groove formed annularly along a circumferential direction around the cylindrical axis on an outer circumferential surface of the connecting portion; a 1 st through hole penetrating from the insertion hole to the 1 st groove in a radial direction of the cylinder axis; and a 2 nd through hole formed at a position opposite to the 1 st through hole with the cylinder axis as a center as viewed in an axial direction of the cylinder axis, penetrating from the insertion hole to the 1 st groove in the radial direction, the sleeve for a rotary tool being coupled to the insertion block by inserting the insertion block into the insertion hole so that a pin insertion hole of the insertion block forms a series of holes with the 1 st through hole and the 2 nd through hole, inserting a pin into the series of holes, and fitting an O-ring into the 1 st groove, wherein the sleeve for a rotary tool is coupled to the insertion block,
a 2 nd groove formed in parallel with the 1 st groove and in a circumferential direction is provided in an outer circumferential surface of the connecting portion,
as seen from the axial direction in question,
the 2 nd groove is formed in a position overlapping with the 1 st through hole, and is formed in a range where an imaginary line extending from the cylindrical axis to the 1 st through hole is shifted by ± 45 degrees or more and less than 90 degrees around the cylindrical axis.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, it is possible to prevent the pin for connecting to the insertion block of the rotary tool from falling down when the pin is attached to and detached from the rotary tool.
Drawings
Fig. 1 is a schematic view showing a socket and an impact wrench according to an embodiment.
Fig. 2 is a side view of the sleeve.
Fig. 3 is a top view of the sleeve.
Fig. 4 is a sectional view taken along line IV-IV of fig. 3.
Fig. 5 is a sectional view taken along line V-V of fig. 3.
Fig. 6 is a side view of the sleeve fitted with the O-ring.
Fig. 7 is a plan view of the sleeve into which the O-ring is fitted.
Fig. 8 is a view for explaining a forming position of the 2 nd groove.
Fig. 9 is a view showing a state in which the O-ring is temporarily placed in the 2 nd groove.
Fig. 10 is a view showing a state in which the O-ring is temporarily placed in the 2 nd groove.
Fig. 11 is a view showing a procedure for attaching and fixing the socket to the impact wrench.
Description of the reference numerals
1. A sleeve; 2. an O-shaped sealing ring; 10. a cylindrical portion; 10A, an insertion port; 10B, a sleeve portion; 11. a 1 st groove; 11A, 11B, a recess; 12. a 2 nd groove; 13. a 3 rd groove; 15A, 1 st through hole; 15B, the 2 nd through hole; 16. a wall; 17. a wall; 50. an impact wrench; 51. inserting a square block; 52. a pin insertion opening; 53. and (4) a pin.
Detailed Description
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Hereinafter, an impact wrench will be described as an example of a rotary tool to which a socket for a rotary tool (hereinafter, simply referred to as a socket) is attachable and detachable. However, the rotary tool with which the socket is attachable and detachable may be a manual wrench, an impact screwdriver, or the like.
[ for impact wrench ]
Fig. 1 is a schematic view showing a socket 1 and an impact wrench 50 according to the present embodiment. In fig. 1, a portion surrounded by a circle is shown in an enlarged scale.
The impact wrench 50 rotates the rotary shaft by supplying electric power to a motor. The impact wrench 50 includes a convex insertion block 51 that rotates in accordance with the rotation of the rotating shaft.
The insert block 51 has a chamfered quadrangular prism shape, and has pin insert holes 52 formed in both parallel side surfaces. Further, pin insertion holes may be formed also in the upper and lower surfaces orthogonal to the both side surfaces. For convenience of explanation, the surface on which the pin insertion hole 52 is formed is referred to as a side surface, but the side surface and the upper and lower surfaces are not specified because the insertion block 51 rotates. The pin insertion hole 52 is a through hole into which a pin (not shown) is inserted to connect the sleeve 1 to the insertion block 51, which will be described later. The sleeve 1 connected to the insertion block 51 is rotated by the rotation of the insertion block 51. The specific configuration of the inside of the impact wrench 50 is the same as that of a conventional impact wrench, and therefore, a detailed description thereof is omitted.
[ concrete Structure of the Sleeve ]
The specific structure of the sleeve 1 will be described in detail below.
Fig. 2 is a side view of the sleeve 1. Fig. 3 is a top view of the sleeve 1. Fig. 4 is a sectional view taken along line IV-IV of fig. 3. Fig. 5 is a sectional view taken along line V-V of fig. 3. For convenience of explanation, fig. 2 is a side view and fig. 3 is a plan view, but the sleeve 1 is cylindrical, and therefore the upper surface and the side surface of the sleeve 1 are not limited. In fig. 5, the components (the 1 st through hole 15A and the 2 nd through hole 15B described later) that are not visible in the cross section along the V-V line are shown by broken lines in order to facilitate understanding of the positional relationship between the components.
The sleeve 1 includes a cylindrical body portion 10 centered on a central axis P. A connection portion 10A to which the rotary tool 50 is connected is provided at a 1 st end portion of the main body portion 10, and a sleeve portion 10B is provided at a 2 nd end portion. The sleeve portion 10B has a hole into which a bolt, a nut, or the like is fitted. The structure of the sleeve portion 10B is not particularly limited, and therefore, the description thereof is omitted.
Hereinafter, the direction along the central axis P is referred to as an axial direction, and the circumferential direction and the radial direction are directions centered on the central axis P.
The connecting portion 10A has an insertion hole 10C, a 1 st groove 11, a 1 st through hole 15A, and a 2 nd through hole 15B.
An insertion hole 10C into which the insertion block 51 is inserted is formed along the cylindrical axis (central axis P) of the main body 10.
The 1 st groove 11 is formed annularly along the circumferential direction on the outer circumferential surface of the body 10.
The 1 st through hole 15A is formed to penetrate from the insertion hole 10C to the 1 st groove 11 in the radial direction. The 2 nd through hole 15B is formed at a position opposite to the 1 st through hole 15A about the center axis P as viewed in the radial direction, and is formed to penetrate from the insertion hole 10C to the 1 st groove 11 in the radial direction. The 1 st through hole 15A and the 2 nd through hole 15B have a size into which a pin to be inserted into the pin insertion hole 52 of the insertion block 51 is inserted.
When the socket 1 is attached to the impact wrench 50, the insert block 51 is inserted into the insert hole 10C of the socket 1 so that the pin insert hole 52 of the insert block 51 overlaps the 1 st through hole 15A and the 2 nd through hole 15B in alignment, thereby forming a series of holes along the radial direction. Pins are then inserted into the series of holes. The O-ring 2 (see fig. 1) is fitted into the 1 st groove 11 to prevent the pins inserted into the series of holes from coming off.
Fig. 6 is a side view of the sleeve 1 fitted with the O-ring 2. Fig. 7 is a plan view of the sleeve 1 fitted with the O-ring 2. The O-ring 2 and the pin described below may be members provided in the sleeve 1 or may be common members that can be used with other sleeves. The O-ring 2 is formed of, for example, fluororubber, urethane rubber, silicone rubber, nitrile rubber, or the like.
The O-ring 2 is fitted into the 1 st groove 11 so as to close the 1 st through hole 15A and the 2 nd through hole 15B. The O-ring 2 is moved from the 1 st groove 11 to expose the 1 st through hole 15A or the 2 nd through hole 15B, which will be described later in detail. Thereby, the pin can be inserted into and pulled out from the 1 st through hole 15A or the 2 nd through hole 15B.
The depth of the 1 st groove 11 is set to a depth at which the O-ring 2 protrudes from the 1 st groove 11 in the radial direction when the O-ring 2 is fitted. The depth is set so that the O-ring 2 is less likely to deviate from the 1 st groove 11. Specifically, the following are set: the O-ring 2 does not deviate from the 1 st groove 11 due to vibration when the impact wrench 50 is used, but the O-ring 2 can be moved from the 1 st groove 11 by a hand.
The body 10 further has a 2 nd groove 12 and a 3 rd groove 13 formed in the 1 st end thereof. The 2 nd and 3 rd grooves 12 and 13 are formed on the outer peripheral surface of the main body portion 10 in the circumferential direction in parallel with the 1 st groove 11. In addition, the 2 nd groove 12 and the 3 rd groove 13 are formed to be located at the same position in the axial direction and on the same circumference. In the present embodiment, the 1 st groove 11, the 2 nd groove 12, and the 3 rd groove 13 are formed in this order from the 1 st end side of the body 10. However, the order of formation of the 1 st groove 11, the 2 nd groove 12, and the 3 rd groove 13 may be reversed.
Here, the formation positions of the 2 nd groove 12 and the 3 rd groove 13 will be described with reference to fig. 8. Fig. 8 is a diagram for explaining a forming position of the 2 nd groove 12. Fig. 8 is a view as viewed from the axial direction.
The 2 nd groove 12 is formed at a position overlapping with the 1 st through hole 15A as viewed in the axial direction. The 2 nd groove 12 is formed in a range where the imaginary line 16 extending from the center axis P toward the 1 st through hole 15A is shifted by ± 45 degrees or more and less than 90 degrees around the center axis P. The same applies to the formation position of the 3 rd groove 13. Although not shown, the 3 rd groove 13 is formed at a position overlapping the 2 nd through hole 15B as viewed from the axial direction. The 3 rd groove 13 is formed in a range where an imaginary line 16 extending from the center axis P toward the 2 nd through hole 15B is shifted by ± 45 degrees or more and less than 90 degrees around the center axis P. Further, the 3 rd groove 13 may not be provided.
The 2 nd groove 12 is as follows: the O-ring 2 is temporarily placed when the O-ring 2 is moved from the 1 st groove 11 in order to expose the 1 st through hole 15A closed by the O-ring 2. In addition, the 3 rd groove 13 is a groove as follows: the O-ring 2 is temporarily placed when the O-ring 2 is moved from the 1 st groove 11 in order to expose the 2 nd through hole 15B closed by the O-ring 2. The temporary placement of the O-ring 2 will be described below.
Fig. 9 and 10 are views showing a state where the O-ring 2 is temporarily placed in the 2 nd groove 12. Fig. 9 is a side view corresponding to fig. 2 and 4, and fig. 10 is a plan view corresponding to fig. 3 and 5. Hereinafter, the 2 nd groove 12 will be described. Since the 3 rd groove 13 is the same as the 2 nd groove 12, the description thereof will be omitted.
When a part of the O-ring 2 covering the 1 st through hole 15A is pressed toward the 2 nd groove 12 by the operator's finger, a part of the O-ring 2 passes over the wall of the 1 st groove 11 and fits into the 2 nd groove 12. A part of the O-ring 2 is fitted into the 2 nd groove 12A (temporarily placed in the 2 nd groove 12A), and even if the operator separates his or her finger, the return of the part of the O-ring 2 to the 1 st groove 11 is suppressed. Thus, the 1 st through hole 15A is exposed, and the operator can insert and remove the pin into and from the 1 st through hole 15A. At this time, since the 2 nd through hole 15B is closed by the O-ring 2, the pin can be prevented from falling off from the 2 nd through hole 15B.
After the insertion and removal of the pin into and from the 1 st through hole 15A is completed, a part of the O-ring 2 temporarily placed in the 2 nd groove 12 is pressed toward the 1 st groove 11 by the finger of the operator, so that the O-ring 2 is fitted into the 1 st groove 11, and the 1 st through hole 15A and the 2 nd through hole 15B are closed by the O-ring 2. When the pin is inserted, the O-ring 2 blocks the 1 st through hole 15A and the 2 nd through hole 15B, and the pin is prevented from coming off. The 2 nd groove 12 is a groove for temporarily placing the O-ring 2, and preferably, the depth of the 2 nd groove 12 is not less than the depth of the 1 st groove 11 so that the O-ring 2 temporarily placed in the 2 nd groove 12 does not return to the 1 st groove 11 (see fig. 3). The wall (portion indicated by reference numeral a) of the 1 st groove on the 2 nd groove side is lower in a portion of the 1 st groove located at a position overlapping with the 2 nd groove than in a portion located at a position not overlapping with the 2 nd groove (portion indicated by reference numeral B).
[ removal of Sleeve ]
Next, the attachment and detachment of the socket 1 to and from the impact wrench 50 will be described. Fig. 11 is a view showing a procedure for attaching and fixing the socket 1 to the impact wrench 50. As a premise, the O-ring 2 is fitted into the 1 st groove 11. In addition, as described with reference to fig. 9 and 10, the 1 st through hole 15A is exposed.
When the socket 1 is attached and fixed to the impact wrench 50, first, a part of the O-ring 2 that closes the 1 st through hole 15A is moved to the 2 nd groove 12 side and temporarily placed on the 2 nd groove 12. In this state, the insertion block 51 is inserted into the insertion port 10A of the sleeve 1 so that the pin insertion hole 52 of the insertion block 51 overlaps the 1 st through hole 15A and the 2 nd through hole 15B of the sleeve 1 ((a) of fig. 11).
Next, the pin 53 is inserted through the 1 st through hole 15A (fig. 11B). At this time, the 2 nd through hole 15B is closed by the O-ring 2, and therefore, the pin 53 inserted from the 1 st through hole 15A can be prevented from coming off the 2 nd through hole 15B. Thus, the pin 53 is inserted into the pin insertion hole 52 of the insertion block 51, the 1 st through hole 15A, and the 2 nd through hole 15B.
Finally, a part of the O-ring 2 temporarily placed in the 2 nd groove 12 is moved toward the 1 st groove 11 and fitted into the 1 st groove 11 ((C) of fig. 11). The inserted pin 53 is prevented from coming off the pin insertion hole 52, the 1 st through hole 15A, and the 2 nd through hole 15B by the O-ring 2, and the sleeve 1 is connected to the insertion block 51. Thereby, the socket 1 is fixed to the impact wrench 50.
The sequence of the case where the socket 1 fixed to the impact wrench 50 has been mounted is reversed from the above-described sequence. That is, a part of the O-ring 2 that blocks the 1 st through hole 15A of the socket 1 attached and fixed to the impact wrench 50 is moved to the 2 nd groove 12 side and temporarily placed on the 2 nd groove 12. Thereby, the 1 st through hole 15A is exposed. In this state, the pin 53 is pulled out. At this time, the 2 nd through hole 15B is closed by the O-ring 2, and therefore, the pin 53 can be prevented from coming off the 2 nd through hole 15B. By pulling out the pin 53, the coupling between the sleeve 1 and the insert block 51 can be released. Thereby, the socket 1 can be detached from the impact wrench 50.
As described above, the socket 1 according to the present embodiment can be attached to and detached from the impact wrench 50 while preventing the pin 53 for coupling to the insertion block 51 of the impact wrench 50 from dropping.
Claims (4)
1. A sleeve for a rotary tool, comprising a cylindrical body part having a sleeve portion at one end and a connecting portion at the other end to which a rotary tool is connected,
the connecting part has:
an insertion hole formed along a cylindrical axis of the main body, into which an insertion block of the rotary tool is inserted;
a 1 st groove formed in an annular shape on an outer peripheral surface of the connecting portion along a circumferential direction around the cylindrical axis;
a 1 st through hole penetrating from the insertion hole to the 1 st groove in a radial direction of the cylinder axis; and
a 2 nd through hole formed at a position opposite to the 1 st through hole around the cylindrical axis as viewed in an axial direction of the cylindrical axis and penetrating from the insertion hole to the 1 st groove in the radial direction,
the sleeve for rotary tool is coupled to the insertion block by inserting the insertion block into the insertion hole such that a pin insertion hole in the insertion block forms a series of holes with the 1 st through hole and the 2 nd through hole, inserting a pin into the series of holes, and fitting an O-ring into the 1 st groove,
a 2 nd groove formed in parallel with the 1 st groove and in a circumferential direction is provided in an outer circumferential surface of the connecting portion,
as seen in the direction of the axis in question,
the 2 nd groove is formed in a position overlapping with the 1 st through hole, and is formed in a range where an imaginary line extending from the cylindrical axis to the 1 st through hole is shifted by ± 45 degrees or more and less than 90 degrees around the cylindrical axis.
2. The sleeve for a rotary tool according to claim 1,
the depth of the 2 nd groove is not less than the depth of the 1 st groove.
3. The sleeve for rotary tools according to claim 1 or 2, wherein,
viewed in the axial direction along the axis of the cylinder,
the wall of the 1 st groove on the 2 nd groove side of the 1 st groove at a portion overlapping with the 2 nd groove is lower than the wall of the portion not overlapping with the 2 nd groove.
4. The sleeve for rotary tool according to any one of claims 1 to 3,
a 3 rd groove formed in parallel with the 1 st groove and in a circumferential direction is provided in an outer circumferential surface of the connecting portion,
viewed in the axial direction along the axis of the cylinder,
the 3 rd groove is formed to overlap the 2 nd through hole, and is formed in a range in which an imaginary line extending from the cylindrical axis to the 2 nd through hole is shifted by ± 45 degrees or more and less than 90 degrees around the cylindrical axis.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-111751 | 2021-07-05 | ||
| JP2021111751A JP2023008305A (en) | 2021-07-05 | 2021-07-05 | Socket for rotary tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115582797A true CN115582797A (en) | 2023-01-10 |
Family
ID=84771040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210107954.7A Pending CN115582797A (en) | 2021-07-05 | 2022-01-28 | Sleeve for rotary tool |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2023008305A (en) |
| CN (1) | CN115582797A (en) |
| TW (1) | TWI815534B (en) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4724730A (en) * | 1986-03-19 | 1988-02-16 | Easco Hand Tools, Inc. | Wrench socket with cam locking feature |
| EP0779130A1 (en) * | 1995-12-16 | 1997-06-18 | Kilpatrick Fraser Limited | Impact wrench clip |
| US5956830A (en) * | 1997-12-03 | 1999-09-28 | Parker-Hannifin Corporation | O-ring assembly tool |
| WO2001070465A1 (en) * | 2000-03-24 | 2001-09-27 | Kyoto Tool Co., Ltd. | Connection structure of socket wrench |
| US20020185286A1 (en) * | 2001-04-23 | 2002-12-12 | Pusateri Daniel S. | Impact tool with detachable drive end |
| CN1283418C (en) * | 2001-10-03 | 2006-11-08 | 京都机械工具株式会社 | Socket wrench for power tool |
| US7363840B1 (en) * | 2006-12-13 | 2008-04-29 | Farley D Gray | Retaining device with high modulus polymer insert and socket wear indicator |
| JP2011251357A (en) * | 2010-06-01 | 2011-12-15 | Toyota Industries Corp | Impact rotary tool |
| JP5802138B2 (en) * | 2012-01-19 | 2015-10-28 | Ｔｏｎｅ株式会社 | Socket and power tool equipped with the same |
| JP6726892B2 (en) * | 2016-03-10 | 2020-07-22 | パナソニックＩｐマネジメント株式会社 | Impact rotary tool |
| TWI647071B (en) * | 2017-08-29 | 2019-01-11 | 薪螢企業有限公司 | Socket |
| TWI674952B (en) * | 2017-08-29 | 2019-10-21 | 薪螢企業有限公司 | Socket |
| JP7118343B2 (en) * | 2017-09-21 | 2022-08-16 | 薪螢企業有限公司 | socket |
| TWI639489B (en) * | 2018-01-12 | 2018-11-01 | 薪螢企業有限公司 | Socket |
| JP7330780B2 (en) * | 2019-06-28 | 2023-08-22 | 株式会社イチネンアクセス | Rotary tool socket |
-
2021
- 2021-07-05 JP JP2021111751A patent/JP2023008305A/en active Pending
-
2022
- 2022-01-28 CN CN202210107954.7A patent/CN115582797A/en active Pending
- 2022-07-01 TW TW111124727A patent/TWI815534B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2023008305A (en) | 2023-01-19 |
| TW202302286A (en) | 2023-01-16 |
| TWI815534B (en) | 2023-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Osaka, Japan Applicant after: Yiran Axis, Ltd. Address before: Osaka, Japan Applicant before: Axis Corp. |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230804 Address after: Osaka, Japan Applicant after: Axis Corp. Address before: Osaka, Japan Applicant before: Yiran mechanical tools Co.,Ltd. |