TWM466759U - Ratchet screwdriver - Google Patents

Description

Ratchet screwdriver

The present invention relates to a ratchet screwdriver, mainly to a ratchet screwdriver which can reduce the volume of the ratchet mechanism and has better operation convenience.

The conventional ratchet driver can engage the screwdriver rod and can adjust the direction of the torque output to improve the operation convenience. As shown in the eighth figure, one of the conventional ratchet screwdriver structures has a handle 1' and a ratchet mechanism 2'. And the ratchet mechanism 2' is disposed at the front end of the handle 1', and an output portion 21' that can engage an external driver rod (not shown) is disposed at the center of the front end, and a steering ring 22' is disposed at the outer edge so that the rotation can be made The steering ring 22' adjusts the output section 21' to output a torque or an idle direction.

Please refer to the eighth and ninth drawings together. The handle 1' has a grip rod 11' in the center, and the front end is provided with a chamber 12' and a positioning body 13', and the ratchet mechanism 2' has a diameter corresponding to the front end of the grip 1'. Diameter, and with a ratchet gear 23', the grip lever 11' of the center of the grip 1' is sleeved, and the ratchet gear 23' is interlocked with the output section 21', and is respectively elastically actuated in the left and right directions outside the ratchet gear 23'. The tooth block 24' and the spring 25' which are engaged with the ratchet gear 23', and the control ring 22' are respectively disposed on the left and right sides of the inner side to be adjusted to abut the abutting portion 221' of the tooth block 24', and correspondingly positioned The body 13' is provided with three positioning grooves 222', so that the rotatable control ring 22' allows the left and right direction toothing blocks 24' and the ratchet gear 23 to be engaged when the central position positioning groove 222' is engaged with the positioning body 13'. 'Mixed to make the output section 21' rotate in the reverse direction and output the torque, and the steering ring 22' can be rotated to make the left or right positioning slot 222' engage with the positioning body 13' (not shown). And the corresponding holding block 21' can be moved without engaging the ratchet gear 23' to make the output section 21' The output torque.

However, the front end of the structural grip 1' must have a larger space 12' to accommodate the ratchet mechanism 2' assembly, resulting in a large front end volume and weight of the ratchet driver, which is disadvantageous for hand operation, as shown in the tenth figure. In order to improve the convenience of use, the jack 14' is further disposed under the handle 1', and the notch 15' is disposed on the side so that the jack 3' can be inserted into the grip 1' from the jack 14' for carrying Convenience, and the position of the notch 15' can be shifted by the direction of the arrow in the direction of the arrow, so that the driver rod 3' can be taken out from the position of the lower jack 14', but because the width of the notch 15' is small, when the user's finger is relatively When it is thick, it will not be easy to displace the screwdriver rod 3' from the position of the notch 15', which is inconvenient to operate.

The purpose of the present invention is to provide a structure that can reduce the volume of the ratchet mechanism of the ratchet driver and has a better operational convenience.

The present invention comprises a handle, a ratchet mechanism and a steering ring, wherein the handle is provided with a handle bar at the center, and the handle is provided with a plurality of penetrating front and rear ends at the circumferential position of the corresponding handle bar and can be inserted into the handle. a jack of the rod; the ratchet mechanism includes an engaging post, two abutting springs, two teeth, a positioning device, an engaging device, and an output member, and the rear end of the engaging post is engaged with the grip bar and corresponding The handle bar rotates in series, and two recesses are arranged around the circumference of the joint post, and the two recessed sides have an abutting surface, and the two recesses are provided with a receiving groove for accommodating the bottom of the spring, and the two tops The bottom end of the spring is respectively accommodated in the two receiving grooves, and the top end abuts against one side of the tooth block, and the outer side of the tooth block has a tooth pattern, and the bottom side abuts against the top abutting spring, and the bottom part is another The side abuts against the abutting surface; the connecting post is provided with a groove engaging positioning device at the circumference of the ring, and the positioning device has a spring, a positioning bead, and the bottom of the spring is received in the groove, and the positioning bead and the spring top end Engaged, and the outer edge protrudes from the outside of the groove; in front of the joint The combination groove is arranged around the circumference; the joint device has two rear collars, a front C-shaped buckle, and the two rear collar sleeves are disposed behind the joint column to provide a rear side of the control collar, and the C-shaped buckle assembly The groove is combined in front of the joint column to provide a joint output member; the output member has a ring-shaped ratchet portion engageable with the joint post, and the front portion has an output portion engageable with the outer driver rod, and the ratchet portion can be sleeved Engaging the front end of the column, and providing a space between the rear end of the ratchet portion and the rear end of the inner concave portion, and providing a ratchet tooth for engaging the tooth block on the inner surface, and a joint groove for engaging the C-shaped buckle, and a retaining ring is protruded from the outer edge of the ratchet portion; the control ring is sleeved on the outer edge of the ratchet portion of the output member, and the front portion abuts against the retaining ring, and the rear end is abutted by the two rear collars, and the control is further controlled. Abutting a portion of the inner surface of the ring at the interval between the corresponding two teeth and the position of the spacing portion, and positioning a plurality of positioning grooves for setting the output torque direction at the position of the corresponding positioning device; and rotating the steering ring to enable corresponding positioning The groove engages with the positioning bead of the positioning device, and the abutting portion can act against the corresponding tooth block to change the output twist Direction.

The present invention is provided with a toothed block and a top abutting spring due to the inwardly disposed concave portion of the joint column, so that the combined diameter of the ratchet mechanism and the steering ring is only slightly larger than the diameter of the handle bar, and the combined diameter can be much smaller than the diameter of the front end of the handle. The weight of the front end of the handle can be reduced to improve the convenience of operation, and the combination of the ratchet mechanism and the steering ring is small, so that the creation can be arranged in the front and rear direction of the corresponding position of the handle corresponding to the handle ring, and can be conveniently used. The driver can be removed from the front of the jack by pushing the driver rod at the rear end of the jack, which can facilitate the use of a better driver.

1‧‧‧Handle
11‧‧‧Handle rod
12‧‧‧ jack

13‧‧‧Window
2‧‧‧ratchet mechanism
21‧‧‧ Engagement column

211‧‧‧ joint groove
212‧‧‧ Inside recess
213‧‧‧Abutment

214‧‧‧ gap
215‧‧‧ accommodating slots
216‧‧‧ Groove

217‧‧‧ combination slot
22‧‧‧Top against spring
23‧‧‧Tooth block

231‧‧‧ teeth
24‧‧‧ Positioning device
241‧‧ ‧ spring

242‧‧‧ positioning beads
25‧‧‧Joining device
251‧‧‧ rear collar

252‧‧‧ rear collar
253C‧‧‧ buckle
26‧‧‧ Outputs

261‧‧‧ ratchet
262‧‧‧Output Department
263‧‧‧ blocking wall

264‧‧‧ interval zone
265‧‧‧ ratchet
266‧‧‧ groups of slots

267‧‧ ‧ retaining ring
3‧‧‧Control ring
31‧‧‧Responsible Department

32‧‧‧ positioning slot
4‧‧‧ screwdriver rod

1'‧‧‧Handle
11'‧‧‧Handle
12'‧‧‧ Rooms

13'‧‧‧ Positioning body
14'‧‧‧ jack
15'‧‧‧ gap

2'‧‧‧ratchet mechanism
21'‧‧‧Output segment
22'‧‧‧ control ring

221'‧‧‧Top Department
222'‧‧‧ positioning slot
23'‧‧‧ Ratchet gear

24'‧‧‧ teeth
25'‧‧‧ Spring
3'‧‧‧ screwdriver rod

The first picture is an exploded view of the creation.

The second picture is another exploded view of the creation.

The third picture is a combination of the creations.

The fourth figure is a cross-sectional view of the B-B corresponding to the third figure and a schematic diagram of the take-out lever.

The fifth figure is a schematic diagram of the torque output when the joint is rotated and counterclockwise.

The sixth figure is a schematic diagram of the one-way output torque generated by the clockwise rotation of the creation joint column.

The seventh figure is a schematic diagram of the one-way output torque generated by the counter-clockwise rotation of the creation joint column.

The eighth figure is a schematic diagram of a conventional ratchet driver.

The ninth drawing corresponds to the A-A cross-sectional view of the eighth drawing.

The tenth figure is a schematic diagram of a set of conventional ratchet screwdrivers.

Please refer to the first to fifth figures together. The present invention includes a handle 1, a ratchet mechanism 2, and a control ring 3, wherein the handle 1 is provided with a grip rod 11 at the center, and the grip rod 11 is a multi-angle The body is further provided with six insertion holes 12 penetrating the front and rear ends of the handle 1 and the insertion of the driver rod 4 at the circumferential position of the corresponding grip bar 11, and a window 13 for observing the insertion hole 12 is disposed on the side of the handle 1.

The ratchet mechanism 2 includes an engaging post 21, two abutting springs 22, two teeth blocks 23, a positioning device 24, an engaging device 25, an output member 26, and a polygonal engaging groove 211 is disposed at the rear end of the engaging post 21. The rear end of the engaging post 21 can be engaged with the grip bar 11 by the engaging groove 211, and can be rotated in conjunction with the grip bar 11, and the two inner recesses 212 are disposed around the circumference of the engaging post 21, and the two recesses 212 are provided. The side has an abutting surface 213, and a notch 214 for connecting the two inner recesses 212 is disposed behind the two inner recesses 212, and the receiving recesses 215 for receiving the bottom of the spring 22 are disposed on the two recessed portions 212. The bottom end of the spring 22 is respectively received in the two accommodating grooves 215, and the top end abuts against one side of the tooth block 23, and the outer side of the tooth block 23 has a tooth 231, and the bottom side is abutted against the topping spring 22. The other side of the bottom abuts against the abutting surface 213, and the tooth block 23 can be held by the top abutting spring 22 in the braking position; and the engaging post 21 is disposed in the circumferential groove 216 to engage the positioning device 24, and The positioning device 24 has a spring 241, a positioning bead 242, and the bottom of the spring 241 is received in the recess 216, and the Beads bonded to the top 242 of the spring 241, and an outer edge 216 protrudes from the outer groove; and a front column 21 to engage the circumferential groove 217 provided in combination.

The engaging device 25 has two rear collars 251, 252 and a front C-shaped buckle 253, and the two rear collars 251, 252 are sleeved behind the engaging post 21 to provide a rear side of the steering ring 3, and a C-shaped buckle The 253 sets are disposed in the front of the joint post 21 in combination with the slots 217 to provide engagement of the post 21 with the output member 26.

The output member 26 has a ring-shaped ratchet portion 261 engageable with the engaging post 21, and has an output portion 262 that can engage the outer driver rod 4, and the ratchet portion 261 can fit the front end of the joint post 21 and be internally When the retaining wall 263 is disposed and the ratchet portion 261 is engaged with the front end of the engaging post 21, the retaining wall 263 can abut against the front end of the engaging post 21, and the ratchet portion 261 does not completely cover the inner recess 212, and the ratchet portion is made The 261 and the rear end of the recessed portion 212 have a spacer 264 (as shown in the fourth figure), and a ratchet 265 that can engage with the tooth block 23 is disposed on the inner surface, and the inner surface is provided to engage the C-shaped buckle 253. The set groove 266 is further provided with a retaining ring 267 on the outer edge of the ratchet portion 261.

The control ring 3 is sleeved on the outer edge of the ratchet portion 261 of the output member 26, and the front portion abuts against the retaining ring 267, and the rear end is positioned by the two rear collars 251, 252 against the rotational position thereof, and the steering ring is further 3, at the inner edge corresponding to the two teeth 23 and the space 264, the protruding portion 31 is protruded, and three positions of the settable output torque direction and the left and right positioning grooves 32 are disposed at the position of the corresponding positioning device 24. And rotating the steering ring 3 can engage the corresponding positioning groove 32 with the positioning bead 242 of the positioning device 24, and the abutting portion 31 can be actuated against the corresponding tooth block 23 to change the output torque direction.

Please refer to the fourth and fifth figures. When the central positioning groove 32 of the control ring 3 is engaged with the positioning bead 242, the abutting portion 31 is located between the two tooth blocks 23, and the two tooth blocks 23 are all connected with the output member. The ratchet teeth 265 of 262 are engaged such that the rotation of the handle 1 in the forward and reverse clockwise directions allows the output member 262 to output a torque.

Referring to the fourth and sixth figures, when the rotary steering ring 3 is rotated to the right, the resisting body 31 can be displaced by the notch 214 and abutted against the left side tooth block 23 so that the left side tooth block 23 does not overlap with the output member 26. The ratchet teeth 161 are engaged, and the left positioning groove 32 is engaged with the positioning bead 242, and the handle bar 11 is driven to rotate clockwise when the engaging post 21 is rotated clockwise, and the right tooth block 23 abuts against the abutting surface 213. Therefore, the output torque can be generated, and when the engaging post 31 rotates counterclockwise, the biasing direction of the right tooth block 23 can correspond to the direction of the abutting spring 22, so that the idling effect can be formed, and the one-way clockwise output torque can be applied.

Please refer to the fourth and seventh figures. The reverse direction of the control ring 3 is left-handed. When the right positioning groove 32 is engaged with the positioning bead 242, the abutting portion 31 and the right tooth block 23 can be abutted to the right side tooth block 23. The ratchet teeth 265 are engaged, and the engagement post 21 can be rotated counterclockwise to produce an output torque.

In the present invention, since the engaging post 21 is provided with the inner concave portion 212 inwardly, the tooth block 23 and the top abutting spring 22 are assembled, so that the overall combined diameter of the ratchet mechanism 2 and the steering ring 3 only needs to be slightly larger than the diameter of the grip rod 11 and The combined diameter is much smaller than the diameter of the bottom end of the handle 1, which can reduce the weight of the front end of the handle 1 to improve the convenience of operation, and the combination of the ratchet mechanism 2 and the steering ring 3 is small, so that the creation can be corresponding to the handle ring of the handle 1. 3 The outer position is provided with the insertion hole 12 extending through the front and rear direction, and the user can easily remove the screwdriver rod 4 from the rear end of the insertion hole 12 as shown in the fourth figure, so that the screwdriver rod 4 can be taken out from the front of the insertion hole 12, which can be compared. The good screwdriver rod 4 is convenient to use.

Therefore, according to the above, the creation can improve the convenience and convenience of the ratchet screwdriver, and the foregoing embodiment is an example of the creation, and is not a limitation of the creation, and the equivalent change according to the spirit of the creation should also belong to the scope of the creation. Inside.

1‧‧‧Handle

11‧‧‧Handle rod

12‧‧‧ jack

13‧‧‧Window

2‧‧‧ratchet mechanism

21‧‧‧ Engagement column

211‧‧‧ joint groove

216‧‧‧ Groove

217‧‧‧ combination slot

22‧‧‧Top against spring

23‧‧‧Tooth block

231‧‧‧ teeth

24‧‧‧ Positioning device

241‧‧ ‧ spring

242‧‧‧ positioning beads

25‧‧‧Joining device

251‧‧‧ rear collar

252‧‧‧ rear collar

253‧‧‧C buckle

26‧‧‧ Outputs

261‧‧‧ ratchet

262‧‧‧Output Department

265‧‧‧ ratchet

267‧‧ ‧ retaining ring

3‧‧‧Control ring

31‧‧‧Responsible Department

32‧‧‧ positioning slot

Claims (7)

A ratchet screwdriver that includes:
a handle, and a grip bar is disposed at the center;
A ratchet mechanism mainly includes an engaging post, two abutting springs, two teeth, a positioning device, an engaging device, an output member, and the rear end of the engaging post is engaged with the grip bar and can correspond to the grip bar Rotating in rotation, and providing two recesses on the circumference of the joint cylinder, and the two recessed sides have abutting faces, and the two abutting springs are respectively placed at the positions of the two recesses, and the top ends respectively abut a tooth block Further, the outer side of the tooth block has a tooth pattern, and the bottom side abuts against the top abutting spring, and the other side of the bottom abuts against the abutting surface; and the engaging post engages the positioning device at the circumference; and the engaging device provides the joint The column is coupled to the output member; the output member has a ring-shaped ratchet portion engageable with the engaging post, and has an output portion at the front that can engage the outer driver rod, and the ratchet portion can fit the front end of the engaging post, and Having a ratchet portion and a rear end of the inner recess having a spacer, and providing a ratchet on the inner surface engageable with the tooth block;
a control ring is sleeved on the outer edge of the ratchet portion of the output member, and the inner surface corresponds to the interval between the two teeth and the position of the spacer portion, and is disposed at a position corresponding to the positioning device to be engaged with the positioning device. The positioning groove and the rotating steering ring can engage the corresponding positioning groove with the positioning device, and the resisting portion can be displaced against the corresponding tooth block to change the output torque direction. The ratchet driver according to claim 1, wherein the handle is provided with a screwdriver rod, and the handle is provided with a plurality of insertion holes extending through the front and rear ends of the handle and the insertion of the driver rod at the circumferential position of the corresponding grip rod. The ratchet driver according to claim 1 or 2, wherein the grip bar is a polygonal body, and the rear end of the engaging post of the ratchet mechanism is provided with a polygonal engaging groove, and the rear end of the engaging post is made of the engaging groove and the grip bar Engage and allow the joint post to rotate in conjunction with the grip bar. The ratchet driver of claim 1 or 2, wherein the two recesses of the engaging post are disposed to receive the receiving groove against the bottom of the spring. The ratchet driver of claim 1 or 2, wherein the engaging post is provided with a groove at the circumference, and the positioning device has a spring, a positioning bead, and the bottom of the spring is received in the groove, and the positioning The beads engage the top end of the spring and the outer edge projects out of the groove. The ratchet driver according to claim 1 or 2, wherein the output member protrudes from the outer edge of the ratchet portion to abut against the retaining ring on the front side of the steering ring, and the combination groove is disposed at the front circumference of the engaging post; The joint device has two rear collars, a front C-shaped buckle, and the two rear collar sleeves are disposed behind the joint post to provide a rear side of the control steering ring, and the C-shaped buckle set is disposed in the front groove of the joint pillar; The output member is configured to engage the coupling groove of the C-shaped buckle and engage the engaging post and the output member. The ratchet driver according to claim 1 or 2, wherein the ratchet portion of the output member is provided with a retaining wall, and the ratchet portion is engaged with the front end of the engaging post when the ratchet portion is engaged with the front end of the engaging post, and The ratchet portion is not completely covered with the inner recess, and the ratchet portion and the rear end of the inner recess have a space.