JP2007105800A - Screwdriver quadrupling rotational speed thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screwdriver which does not tire the operator, is free from loosening of engagement due to an excessive fastening of a screw, and quadruples the rotational speed thereof. <P>SOLUTION: The screwdriver is formed of a rotating section 2, a support section 3, and an operating section 4. The rotating section 2 is formed such that a button portion 7 is set in a grip 6 protected with a grip upper cover 5, via a stopper fitting 8 having a stopper cover portion 9 mounted therein, and that a push cam 10 having a stopper cam 11 connected to a lower portion thereof, is connected to the stopper cover portion. The support section 3 is formed of a housing 12 protected with a housing cover 13 arranged on a grip lower portion. The operating section 4 is formed such that a shaft 18 with a stopper 19 is inserted into the center of a base 16a on which a plurality of planet gears 15 engageable with a solar gear 14 and a plurality of planet gears engageable with an internal gear 17 are rotatably mounted in the housing, and that a screwdriver 21 is detachably attached to a lower portion of the shaft via a slide ring 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a driver.

  Conventionally, some drivers have a grip portion and a replaceable tip portion whose tip is shaped like plus, minus, hexagon, etc., and some drivers are provided with a trigger and only the tip is rotated electrically.

  However, among conventional drivers having a tip that rotates at the same magnification as the grip portion, it takes time to tighten the screw, and tightening a large number of screws is tedious and results in poor efficiency.

In addition, with a driver that has a trigger on the grip and only the tip rotates electrically, the rotation is too fast and the screws are tightened more than necessary. It was troublesome.
JP 2000-84865 A

  Therefore, the present invention eliminates fatigue because the screw tightening speed is fast, and it is possible to easily avoid unnecessary screw tightening. It is intended to provide.

  In order to solve the above problems, the present invention provides a grip upper cover 5, a grip 6 protected by the grip upper cover 5, a button portion 7 installed in the grip 6, and a stopper fitting 8 for attaching the button portion 7. A rotating portion 2 comprising a stopper cover 9 attached to the inside of the stopper fitting 8, a push cam 10 connected to the stopper cover 9, and a stopper cam 11 coupled below the push cam 10, a housing 12 and a housing 12 A support portion 3 including a housing cover 13 for protecting the sun gear 14, a plurality of planetary gears 15 engaged with the sun gear 14, the sun gear 14, a base 16 for rotatably mounting the planetary gear 15, and three planetary gears 15; On the shaft 18 and the shaft 18 that penetrate the center of the intermeshing gear 17 and the sun gear 14 and the base 16 that engage with each other A rotation characterized by comprising a stopper 19 attached to the shaft 18, a slide ring 20 connected to the lower portion of the shaft 18, and a working portion 4 comprising a driver 21 detachably attached to the lower portion of the shaft 19 via the slide ring 20. The driver configuration is four times as many.

  In the driver of the present invention in which the number of rotations is four times, the action part rotates four times with respect to one rotation of the rotation part, so that screwing by a normal hand can be efficiently performed.

  In addition, since it can be performed while feeling the sense of screw tightening by hand as in the past, it is possible to avoid the occurrence of loosening of locking due to excessive screw tightening, which was likely to occur with electric screw tightening.

  The purpose of a screwdriver that can be easily screwed and does not cause loosening of locking by screwing more than necessary is realized by combining three types of gears.

FIG. 1 is a front view of a driver whose rotational speed is quadruple according to the present invention, and FIG. 2 is a cross-sectional view taken along line AA of the driver whose rotational speed is quadrupled. As shown in FIGS. 1 and 2, the driver 1 according to the present invention having a quadruple number of rotations is connected to the rotating unit 2, the support unit 3 connected below the rotating unit 2, and the support unit 3. And the action part 4.

  The rotating portion 2 is attached to the grip upper cover 5, the grip 6 protected by the grip upper cover 5, the button portion 7 installed in the grip 6, the stopper fitting 8 for attaching the button portion 7, and the stopper fitting 8. It consists of a stopper cover portion 9, a push cam 10 connected to the stopper cover portion 9, and a stopper cam 11 connected below the push cam 10.

  The support portion 3 includes a housing 12 and a housing cover 13 that protects the housing 12.

  The action unit 4 includes a sun gear 14, a plurality of planetary gears 15 engaged with the sun gear 14, a base 16 for rotatably mounting the planetary gears 15, an internal field gear 17 that meshes with the three planetary gears 15, and a sun gear. 14 and a shaft 18 passing through the center of the base 16, a stopper 19 attached to the upper portion of the shaft 18, a slide ring 20 connected to the lower portion of the shaft 18, and a lower portion of the shaft 19 through the slide ring 20. The driver 21 is included.

  Next, each member will be described with reference to FIGS. 3 is a front view of the upper cover for the grip of the driver according to the present invention, in which the number of revolutions is four times, FIG. 4 is a plan view of the upper cover for the grip, FIG. 5 is a side view of the upper cover for the grip, and FIG. FIG. 7 is a cross-sectional view taken along line CC of the upper cover for grip, and FIG. 8 is a cross-sectional view taken along line DD of the upper cover for grip. .

  As shown in FIG. 3, the grip upper cover 5 is composed of a hollow cylindrical cover 5 a, the diameter of the cover 5 a is constant, and the diameter of the upper quarter portion becomes smaller toward the upper end. Thus, the upper end portion is the opening 5b having the smallest diameter. On the other hand, the diameter of the lower end is the same as that of the cover 5a, and a rib 5c is provided around it.

  As shown in FIG. 4, a pair of concave portions 5d and 5d are provided on the side surface of the cover 5a, and the concave portions 5d and 5d are provided at symmetrical positions from the center of the cover 5a.

  As shown in FIG. 5, a circular recess 5e is provided on the side surface of the cover 5a. The recess 5e is provided in the middle of the recesses 5d and 5d, and a circular recess 5e is similarly provided on the opposite side of the recess 5e shown in FIG. That is, it has a shape as shown in each cross-sectional view of FIGS.

  9 is a front view of the grip of the driver according to the present invention in which the number of revolutions is four times, FIG. 10 is a plan view of the grip, FIG. 11 is a sectional view along the line EE of the grip, and FIG. It is sectional drawing along the -F line.

  As shown in FIGS. 9 and 10, the grip 6 includes a grip body 6 a having a semicircular opening 6 b at the upper end and a connecting portion 6 c connected to the lower portion of the grip 6 a. The grip body 6a is semicircular when viewed from above. Semi-circular recesses 6f and 6f are provided at both ends of the side wall surface of the grip body 6a, and the recesses 6f and 6f are provided above the center of the side wall surface of the grip body 6a.

  A partition 6g provided with a semicircular center hole 6j is provided on the inner wall surface slightly below the center of the grip body 6a. Two connection holes 6e and 6e are provided below the partition 6g.

  In the inside of the grip body 6a, below the upper opening 6b provided at the upper end of the grip body 6a, there is provided a connecting member 6h having a columnar half, and inside the connecting member 6h at equal intervals. Three partitions 6i, 6i, 6i are provided. The partition 6i has a semicircular shape, but has a shape cut out by a semicircle having a smaller diameter.

  The connecting portion 6c is a semi-cylindrical half cylinder having a slightly larger diameter than the grip body 6a, and a lower opening 6d is provided at the lower portion.

  As shown in FIG. 10, by connecting the grips 6 face to face, a circular grip is obtained when viewed from above.

  As shown in FIG. 11, a recess 6k is provided on the outer peripheral surface of the grip body 6a. The recess 6k has substantially the same shape as the recess 5d of the grip upper cover 5. As shown in FIG. 12, the connection hole 6e provided in the grip main body 6a comes to the same position when the grip main bodies 6a are overlapped with each other, and the overlapping connection holes 6e are attached with a fastener or the like. By connecting, the grip bodies 6a are connected.

  FIG. 13 is a perspective view of a button portion of a driver according to the present invention in which the number of rotations is quadrupled. As shown in FIG. 13, the button unit 7 includes a button 7a and a lower projecting portion 7b provided at the lower center of the button 7a. The button 7a has a disc shape, and the upper center is a concave portion 7c that is gently depressed, and a hole 7d is formed in the center.

  A lower protrusion 7b provided at the lower center of the button 7a has a cylindrical shape. A hole 7d drilled in the center of the button 7a is drilled to the lower end of the lower protrusion 7b.

  FIG. 14 is a perspective view of a stopper fitting for a driver according to the present invention in which the number of revolutions is four times. As shown in FIG. 14, the stopper fitting 8 includes a donut-shaped connecting portion 8a having a hole 8c formed in the center thereof, and substantially L-shaped stopper legs 8b and 8b provided on the outer peripheral surface of the connecting portion 8a. The two stopper legs 8b, 8b are provided at symmetrical positions around the connecting portion 8a.

  FIG. 15 is a perspective view of a stopper cover portion of a driver according to the present invention in which the number of revolutions is quadrupled. As shown in FIG. 15, the stopper cover portion 9 is composed of a cylindrical stopper cover 9a having a hole 9e in the center, and two upper projecting plates 9b and 9b are provided on the outer peripheral surface of the stopper cover 9a. Lower projecting plates 9c, 9c are provided.

  The upper and lower protruding plates 9b and 9c have the same diameter and the same size and are substantially semicircular, and a gap 9d is provided between the end portions of the upper protruding plate 9b as shown in FIG. A gap is also provided between the end portions of 9c. Further, a gap is also provided between the upper and lower protruding plates 9b and 9c.

  Four inner stoppers 9f, 9f, 9f, 9f are provided on the inner wall surface of the stopper cover 9a. Two slopes 9g and 9g are formed in the lower part of the inner stopper 9f, respectively, and are stepped.

  FIG. 16 is a perspective view of a push cam of a driver according to the present invention in which the rotation speed is quadrupled. As shown in FIG. 16, the push cam 10 includes a columnar base portion 10a and a columnar protrusion portion 10b provided at the center upper portion of the base portion 10a, and the diameter of the protrusion portion 10b is larger than the diameter of the base portion 10a. Is smaller.

  The base portion 10a has a hollow 10e inside, and a plurality of convex portions 10d are provided on the outer peripheral surface. In addition, a plurality of peaks 10c are formed at equal intervals over the entire bottom surface of the base portion 10a. The protrusion 10b has a cylindrical shape, and the inside is hollow 10f.

  FIG. 17 is a perspective view of a stopper cam of a driver according to the present invention in which the rotation speed is quadrupled. As shown in FIG. 17, the stopper cam 11 includes a cylindrical stopper cam main body 11a and a stopper cam lower portion 11b having a tapered upper side surface.

  The stopper cam body 11a has a hollow cylindrical shape, and a stopper cam lower part 11b is connected to the lower part of the stopper cam body 11a. The outer periphery of the upper portion of the stopper cam lower portion 11b is inclined in a tapered shape, and four blades 11e are provided on the outer peripheral surface of the stopper cam lower portion 11b so as to be in a cross-shaped position. An inclination 11f is provided on the upper portion of the blade 11e, and the blade 11e faces in the same direction according to the circumference of the stopper cam lower portion 11b.

  The upper portion of the stopper cam body 11a is an upper opening portion 11c, and the lower portion of the stopper cam lower portion 11b is a lower opening portion 11d.

  18 is a front view of a housing of a driver according to the present invention in which the number of revolutions is four times, FIG. 19 is a plan view of the housing, FIG. 20 is a bottom view of the housing, and FIG. 21 is a cross section taken along line GG of the housing FIG.

  As shown in FIG. 18 to FIG. 21, the housing 12 has a diameter that decreases from the upper part toward the central part, and a constant diameter from the central part to the lower part, and an outer periphery provided at the lower part of the housing main body 12a. The connection part 12b which gave the unevenness | corrugation 12f to the upper part of the housing main body 12a consists of the connection part 12d provided through the protrusion part 12c.

  The diameter of the upper portion of the housing body 12a and the diameter of the connecting portion 12d are substantially the same, and the diameter of the protruding portion 12c is slightly larger than the diameter of the connecting portion 12d. Four ribs 12e are provided in the vertical direction on the outer peripheral surface of the housing main body 12a, and the four ribs 12e are positioned in a cross shape.

  As shown in FIG. 19, two concave portions 12g are provided on the outer peripheral surface of the connecting portion 12d, and the concave portions 12g and 12g are provided symmetrically with respect to the center of the connecting portion 12d.

  As shown in FIGS. 20 and 21, the housing body 12, the connection portion 12 b, and the coupling portion 12 d are hollow, and the housing body 12 a and the coupling portion 12 d are a series of hollows. The hollow 12i of the connecting portion 12b is connected to the hollow of the housing main body 12a through a hole 12h drilled between the housing main body 12a and the connecting portion 12b.

  22 is a front view of the housing cover of the driver according to the present invention in which the number of revolutions is four times, FIG. 23 is a plan view of the housing cover, FIG. 24 is a bottom view of the housing cover, and FIG. FIG.

  As shown in FIG. 22, the housing cover 13 is composed of a cover 13a having four outer ribs 13b and a slip stopper 13c on the outer peripheral surface, and the four outer ribs 13b are arranged in a cross shape so as to be positioned in a cross shape. It is given in the vertical direction. The anti-slip 13c is provided between the outer ribs 13b.

  As shown in FIG. 23, four inner ribs 13d are formed on the inner peripheral surface of the cover 13a, and the four inner ribs 13d are provided on the inner wall surface of the cover 13a so as to be positioned in a cross shape. Yes. As shown in FIGS. 24 and 25, the inside of the cover 13a is hollow, and the hole 13e on the bottom surface has a substantially circular shape in which four recesses 13f are formed. The four recesses 13f are formed so as to be in a cross-shaped position.

  FIG. 26 is a front view of a sun gear of a driver whose rotation speed is four times according to the present invention, FIG. 27 is a plan view of the sun gear, and FIG. 28 is a cross-sectional view taken along line II of the sun gear. As shown in FIGS. 26 to 28, the sun gear 14 includes a cylindrical central main body 14a and a gear portion 14b, and two through holes 14c are formed in the side surface of the central main body 14a. The two through holes 14c are formed so as to be symmetrical from the center of the central body 14a.

   As shown in FIGS. 27 and 28, a plurality of teeth 14d, 14d, 14d... Are formed on the outer peripheral surface of the gear portion 14b, and the inside of the gear portion 14b is a hollow 14e. In the present invention, the number of the teeth 4d of the gear portion 14b is set to 18, but the number of teeth is not particularly limited.

  FIG. 29 is a front view of a planetary gear of a driver whose rotational speed is four times according to the present invention, FIG. 30 is a plan view of the planetary gear, and FIG. 31 is a cross-sectional view taken along line JJ of the planetary gear. As shown in FIGS. 29 to 31, the planetary gear 15 includes a gear portion 15a and a central body 15b.

  The gear portion 15a has a plurality of teeth 15c on the outer peripheral surface, and the central body 15b has a hollow 15d with a hole in the center. In the present invention, the number of teeth 15c of the gear portion 15a is 24, but the number of teeth is not particularly limited.

  FIG. 32 is a plan view of the gear base of the driver according to the present invention in which the rotational speed is quadrupled. As shown in FIG. 32, the gear base 16 comprises a substantially disk-shaped base 16a having two recesses 16e and 16e formed therein, and the base 16a has a central hole 16b formed in the center, and each of the three gear connecting holes 16c. , 16d.

  The gear connection holes 16c, 16c, 16c are formed at a position located in the middle of the outer periphery of the center hole 16b and the base 16a, and the distances between the three gear connection holes 16c are equal. The other gear connection holes 16d, 16d, and 16d are formed slightly on the outer peripheral side of the base 16a from the center hole 16b, and the distances between the three gear connection holes 16d are equal. The gear connection holes 16c and the gear connection holes 16d are formed alternately.

  FIG. 33 is a plan view of an in-field gear of a driver in which the rotational speed is four times according to the present invention. As shown in FIG. 33, the internal gear 17 comprises a gear frame 17a having a large hollow 17b inside, and a plurality of teeth 17c are formed on the inner wall surface of the gear frame 17a. Two recesses 17d and 17d are formed on the outer peripheral surface of the gear frame 17a. In the present invention, the number of teeth 17c formed on the inner wall surface of the gear frame 17a is 72, but the number of teeth is not particularly limited.

  34 is a front view of the shaft of a driver according to the present invention in which the number of revolutions is four times, FIG. 35 is a plan view of the shaft, FIG. 36 is a bottom view of the shaft, and FIG. 37 is a cross section along the line KK. FIG.

  As shown in FIGS. 34 to 37, the shaft 18 is composed of a substantially cylindrical shaft main body 18a, and upper and lower extension portions 18b and 18c are provided at the lower portion of the shaft main body 18a, and between the upper and lower extension portions 18b and 18c. Is a recess 18f. A connecting portion 18d having a recess 18g is provided at the upper end of the shaft body 18a.

  As shown in FIGS. 36 and 37, the upper and lower expansion portions 18b and 18c are formed with hexagonal holes 18h, and the inside is hollow. A hole 18i is formed in the inner wall surface of the lower extension 18c. A through-hole 18e is formed above the center of the shaft body 18a.

  FIG. 38 is a perspective view of a driver stopper according to the present invention in which the number of revolutions is four times. As shown in FIG. 38, the stopper 19 has a substantially donut-shaped stopper body 19a having a hole 19c formed in the center, and projecting portions 19b, 19b, 19b, 19b provided to project in four directions from the outer peripheral surface of the stopper body 19a. It consists of. Since the protrusion 19d protrudes from the hole 19c, the hole 19c has a substantially circular shape.

  FIG. 39 is a front view of a slide ring of a driver whose rotational speed is four times according to the present invention, and FIG. 40 is a cross-sectional view taken along line LL of the slide ring. As shown in FIGS. 39 and 40, the slide ring 20 has a hollow 20c inside and is formed of a cylindrical ring body 20a, and a lower portion of the ring body 20a is a lower extension portion 20b. The inside of the lower extension 20b is also hollow 20d, and the diameter of the hollow 20d is smaller than the diameter of the hollow 20c.

  Next, the assembled state of each member will be described with reference to FIGS. 2, 41, and 42. FIG. 2 is a cross-sectional view taken along line AA of the driver in which the rotational speed is quadruple according to the present invention, and FIG. 41 is a perspective view showing the inside of the rotating portion of the driver in which the rotational speed is quadruple according to the present invention. FIG. 42 is a plan view showing the engagement state of the gear of the driver in which the number of revolutions is four times according to the present invention.

  As shown in FIGS. 2 and 41, the rotating part 2 includes a grip upper cover 5, a grip 6 protected by the grip upper cover 5, a button part 7 installed in the grip 6, and a stopper fitting for attaching the button part 7. 8, a stopper cover portion 9 attached to the inside of the stopper fitting 8, a push cam 10 connected to the stopper cover portion 9, and a stopper cam 11 connected below the push cam 10.

  A stopper cover 9 is attached in a connecting member 6h provided from the upper center of the grip 6 toward the inside downward. At this time, the upper and lower projecting plates 9b and 9c of the stopper cover portion 9 are inserted into a gap provided between the three partitions 6i of the grip 6. Next, the stopper legs 8b and 8b of the stopper fitting 8 are inserted into the gaps 9d and 9d of the stopper cover portion 9 from above.

  The lower protruding portion 7b of the button portion 7 is inserted into the hole 8c formed in the connecting portion 8a of the stopper fitting 8, and the push cam 10 is inserted into the stopper cover portion 9 so that the protruding portion 10b protrudes from the hole 9e. Further, the protruding portion 10 b of the push cam 10 and the lower protruding portion 7 b of the button portion 7 are connected by a fastener 22. A stopper cam 11 is provided under the push cam 10 and is pushed up by an upper part of a spring 23 attached to the upper end of the shaft 18. The grip upper cover 5 is covered on the outer surface of the grip 6 including the above structure.

  As shown in FIG. 2, the support portion 3 includes a housing 12 and a housing cover 13 that protects the housing 12. The housing 12 is connected to the grip 6 that constitutes the rotating part 2 described above. The housing 12 and the grip 6 are connected by engaging the lower end of the connecting portion 6c of the grip 6 with the groove formed between the connecting portion 12d and the protruding portion 12c.

  The outer peripheral side surface of the housing main body 12a is covered with the housing cover 13 and is difficult to slip when the housing 12 is gripped.

  As shown in FIGS. 2, 41 and 42, the action unit 4 includes a sun gear 14, a plurality of planetary gears 15 engaged with the sun gear 14, a base 16 for rotatably mounting the planetary gears 15, and three Inner gear 17 that meshes with planetary gear 15, sun gear 14, shaft 18 that penetrates the center of base 16, stopper 19 that is attached to the upper part of shaft 18, slide ring 20 that is connected to the lower part of shaft 18, and slide ring 20 And a driver 21 detachably attached to the lower portion of the shaft 19 via

  A stopper 19 is connected to the connecting portion 18d at the upper end of the shaft 18, and a spring 23 is connected to the connecting portion 18d so as to fix the stopper 19. The shaft main body 18a is pivotably coupled through the central hole 16b of the gear base 16 and the hollow 14e of the sun gear 14, and the planetary gear 15 is fastened to the gear coupling holes 16c and 16d of the gear base 16. It is attached so that it can rotate. A bearing 27 is attached between the stopper 19 and the sun gear 14 of the shaft body 18a.

  Three planetary gears 15 attached to the gear coupling hole 16d engage with the internal field gear 17. The inner field gear 17 is engaged only with the three planetary gears 15. Further, the sun gear 14 is engaged only with the three planetary gears 15 attached to the gear connecting hole 16c.

  The shaft 18 is rotatably connected to the connection portion 12b of the housing 12 of the support portion 3 via a bearing 25 at the position of the lower upper extension portion 18b. A ball bearing 26 is attached to a hole 18 i formed in the lower extension 18 c of the shaft 18, and the upper and lower extensions 18 b and 18 c of the shaft 18 are covered with a slide ring 20.

  A concave portion is formed on a side surface of the driver 21 inserted into the hexagonal hole 18 h, and the ball bearing 26 is fitted into the concave portion of the driver 21 to fix the driver 21. To remove the driver 21, the ball bearing 26 is moved into the slide ring 20 by sliding the slide ring 20 covering the upper and lower extension portions 18b and 18c downward and aligning the portion with the larger inner diameter with the position of the ball bearing 26. The ball bearing 26 can be removed from the recess of the driver 21. A spring 28 is installed in the slide ring 20, and the slide ring 20 can be returned upward by the spring 28.

  By grasping the support part 3 and rotating the rotating part 2, the action part 4 makes four rotations, four times as much as one rotation of the rotating part 2. Further, when the rotating portion 2 is rotated once, if the supporting portion 3 is rotated once in the reverse direction, the action portion becomes eight times, and further fast screw tightening can be performed.

  In addition, since the stopper fitting 8 fixes the stopper 19 by pushing the button portion 7 downward, the shaft 18 connected to the stopper 19 is also fixed, so that the rotation portion 2 and the action portion 4 have the same rotation. Thus, the action unit 4 can be used as a normal driver that rotates once for one rotation of the rotation unit 2. This is because the screws are securely tightened without using the rotation of the gears at the time of the final screw tightening in which the resistance is the strongest by screw tightening.

It is a front view of the driver which the rotation speed which is this invention becomes 4 times. It is sectional drawing along the AA line of the driver whose rotation speed which is this invention becomes 4 times. It is a front view of the upper cover for the grip of the driver whose rotation speed is 4 times according to the present invention. It is a top view of the upper cover for the grip of the driver whose rotation speed is 4 times which is the present invention. It is a side view of the upper cover for the grip of the driver in which the number of rotations is four times according to the present invention. It is sectional drawing along the BB line of the cover for grips of the driver whose rotation speed is 4 times which is the present invention. It is sectional drawing along CC line of the upper cover for grips of the driver whose rotation speed is 4 times which is the present invention. It is sectional drawing along the DD line of the upper cover for grips of the driver whose rotation speed is 4 times which is the present invention. It is a front view of the grip of the driver whose rotation speed is 4 times which is the present invention. It is a top view of the grip of the driver whose rotation speed is 4 times which is the present invention. It is sectional drawing along the EE line of the grip of the driver whose rotation speed is 4 times which is the present invention. It is sectional drawing along the FF line of the grip of the driver whose rotation speed which is this invention becomes 4 times. It is a perspective view of the button part of the driver whose number of rotations is 4 times which is the present invention. It is a perspective view of the stopper metal fitting of the driver whose number of rotations is 4 times which is the present invention. It is a perspective view of the stopper cover part of the driver whose number of rotations which is the present invention becomes 4 times. It is a perspective view of the push cam of the driver whose rotation speed is 4 times which is the present invention. It is a perspective view of a stopper cam of a driver in which the number of revolutions is four times that of the present invention. It is a front view of the housing of the driver which the rotation speed which is this invention becomes 4 times. It is a top view of the housing of a driver whose number of rotations is 4 times which is the present invention. It is a bottom view of the housing of the driver whose number of rotations is 4 times which is the present invention. It is sectional drawing along the GG line of the housing of the driver whose rotation speed is 4 times which is the present invention. It is a front view of the housing cover of the driver whose rotation speed is 4 times which is the present invention. It is a top view of the housing cover of the driver whose rotation speed is 4 times which is the present invention. It is a bottom view of the housing cover of the driver whose rotation speed is 4 times which is the present invention. It is sectional drawing along the HH line of the housing cover of the driver whose rotation speed which is this invention becomes 4 times. It is a front view of the sun gear of the driver whose rotation speed is 4 times which is the present invention. It is a top view of the sun gear of the driver whose rotation speed is 4 times which is the present invention. It is sectional drawing along the II line of the sun gear of the driver whose rotation speed which is this invention becomes 4 times. It is a front view of the planetary gear of the driver whose rotation speed is 4 times which is the present invention. It is a top view of the planetary gear of the driver whose rotation speed is 4 times which is the present invention. It is sectional drawing along the JJ line of the planetary gear of the driver whose rotation speed is 4 times which is the present invention. It is a top view of the gear base of the driver whose rotation speed is 4 times which is the present invention. It is a top view of the internal field gear of the driver whose rotation speed is 4 times which is the present invention. It is a front view of the shaft of the driver whose rotation speed which is this invention becomes 4 times. It is a top view of the shaft of the driver whose rotation speed which is this invention becomes 4 times. It is a bottom view of the shaft of the driver whose number of rotations is 4 times the present invention. It is sectional drawing along the KK line | wire of the shaft of the driver whose rotation speed which is this invention becomes 4 times. It is a perspective view of the stopper of the driver whose number of rotations is 4 times which is the present invention. It is a front view of the slide ring of the driver whose rotation speed is 4 times which is the present invention. It is sectional drawing along the LL line of the slide ring of the driver whose rotation speed is 4 times which is this invention. It is the perspective view which showed the inside of the rotation part of the driver which the rotation speed which is this invention 4 times. It is the top view which showed the engagement state of the gear of the driver whose rotation speed which is this invention becomes 4 times.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Screwdriver whose rotation speed is quadrupled 2 Rotating part 3 Supporting part 4 Acting part 5 Grip upper cover 5a Cover 5b Opening part 5c Rib 5d Recessed part 5e Concave part 6 Grip 6a Grip body 6b Upper opening part 6c Connecting part 6d Lower opening part 6e Connection hole 6f Recess 6g Partition 6h Connection member 6i Partition 6j Center hole 6k Recess 7 Button part 7a Button 7b Lower protrusion 7c Recess 7d Hole 8 Stopper metal fitting 8a Connection part 8b Stopper leg 8c hole 9 Stopper cover part 9b Stopper cover part 9b Stopper cover part 9a Projection plate 9c Lower projection plate 9d Clearance 9e Hole 9f Inner stopper 9g Inclination 10 Push cam 10a Base 10b Projection 10c Mountain 10d Protrusion 10e Hollow 10f Hollow 11 Stopper cam 11a Stopper cam main body 11b Stopper cam lower part 11c d Lower opening portion 11e Blade 11f Inclination 12 Housing 12a Housing body 12b Connection portion 12c Projection portion 12d Connection portion 12e Rib 12f Concavity and convexity 12g Concavity 12h Hole 12i Hollow 13 Housing cover 13a Cover 13b Outer rib 13c Non-slip 13d Inner rib 13e 14 sun gear 14a central body 14b gear part 14c through hole 14d tooth 14e hollow 15 planetary gear 15a gear part 15b central body 15c tooth 15d hollow 16 gear base 16a base 16b central hole 16c gear connecting hole 16d gear connecting hole 16e concave part 17e Gear 17a Gear frame 17b Hollow 17c Teeth 17d Recess 18 Shaft 18a Shaft body 18b Upper extension 18c Lower extension 18d Connection 18e Through hole 18f Recess 18g Recess 18h Hexagonal hole 18i hole 19 Stopper 19a Stopper main body 19b Protruding portion 19c Hole 19d Protruding portion 20 Slide ring 20a Ring main body 20b Lower extended portion 20c Hollow 20d Hollow 21 Driver 22 Fastening 23 Spring 24 Fastening 25 Bearing 26 Ball bearing 27 Spring 28 Bearing 28 Spring

Claims (1)

  A rotating part in which a push cam in which a button part is connected to the stopper cover part is connected to the stopper cover part by installing a button part in a grip protected by the upper cover for the grip through a stopper fitting having a stopper carber part attached inside. A support portion comprising a housing attached to the lower part of the grip and protected by a housing cover; a plurality of planetary gears engaging with a sun gear and a plurality of planetary gears engaging with an in-field gear in the housing; The number of revolutions is quadruple, characterized in that a shaft with a stopper is inserted in the center of the base attached to the shaft and a working part is detachably attached to the lower part of the shaft via a slide ring. driver.

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