TWM549199U - Hand puller - Google Patents

Description

Hand puller

This creation relates to a hand puller, and more particularly to a hand puller with a safety device.

Hand pullers are often used to hold goods. A conventional hand puller usually has a frame, a scroll, a ratchet, a claw, a handle and two straps. The frame has two side panels and one intermediate panel. The two side panels are substantially parallel to each other. The intermediate plate extends vertically between the two side panels. The reel is mounted on two side panels such that the reel and the two side panels are relatively rotatable. The middle section of the reel is between the two side panels. One end of the reel runs through a side panel. The other end of the reel runs through the other side panel. The ratchet connects one end of the spool so that the ratchet and the spool can only rotate together. The claws are provided on one of the side plates so that the claws and the side plates are relatively swingable. The handle is attached to the other end of the spool so that the handle and the spool can only rotate together. One strap has one end connected to the intermediate plate and the other end connected to a hook. The other strap has one end connected to the reel and the other end connected to the other hook. When using a hand puller, hook an object with two hooks, such as a truck. Stick a piece of cargo with two straps. Operate the handle and rotate the reel in one direction. The reel rolls up a strip. In this way, the two straps secure the cargo to the truck. As the reel rotates, the ratchet also rotates and the pawl bounces on the ratchet. At any moment, when the handle is stopped, the reel and the ratchet stop, and the claws immediately bite the ratchet. In other words, the claws fix the position of the ratchet and the reel. Therefore, the tension of the two belts is maintained so that the goods are fixed on the truck. This hand puller is not without faults. First of all, the handle can not be folded, so that it is easy to hook to the foreign object and affect the stability of the handle. Second, the claws may be touched out of the ratchet so that the ratchet and reel can be reversed Turn to relax the strap.

One of the purposes of this creation is to provide a small and reliable hand puller.

To achieve the above objectives, the hand puller includes a frame, a reel, a ratchet, a claw, a handle, and a safety device. The spool is mounted on the frame such that the spool is rotatable relative to the frame and the spool has ends that are outside the frame. The ratchet connects the first end of the spool such that the ratchet and the spool can only rotate together. The claw is mounted on the frame such that when the ratchet is rotated in the first direction, the claw jumps on the ratchet to allow the ratchet to rotate, and when the ratchet is attempted to rotate in the second direction, the claw catches the ratchet and blocks the The ratchet turns. The safety device is moveable between a drive state and a locked state. In the driven state, the safety device connects the handle to the second end of the spool. In the locked state, the safety device is placed against the frame against the pawl such that the pawl securely engages the ratchet, thereby securing the position of the spool.

10‧‧‧ box

11‧‧‧Small hole

12‧‧‧ reel

14‧‧‧ ratchet

15‧‧‧ ratchet

16‧‧‧ claw

17‧‧‧ teeth

18‧‧‧Hands

20‧‧‧Safety device

22‧‧‧ long hole

24‧‧‧Expanding Department

26‧‧‧ holes

28‧‧‧Axis

30‧‧‧ head

32‧‧ ‧ sales

34‧‧‧ clip

36‧‧‧Extended section

38‧‧‧ round hole

40‧‧‧Insert Department

42‧‧‧ Ring

A hand puller according to an embodiment of the present invention will be described below with reference to the accompanying drawings, wherein: FIG. 1 is a perspective view of a hand puller of one embodiment of the present creation; and FIG. 2 is a first view of the hand puller viewed from another direction. An exploded view of the hand puller shown. Fig. 3 is a safety device for the hand puller shown in Fig. 1; and Fig. 4 is an exploded view of the safety device shown in Fig. 3.

Referring to Figures 1 and 2, in accordance with one embodiment of the present invention, a hand puller has a frame 10, a reel 12, a ratchet 14, a paw 16, a handle 18, a safety device 20 and two straps. Child (no label). Frame 10 has two side panels (no number) and one intermediate panel (no label). The two side panels are substantially parallel to each other. The intermediate plate extends vertically between the two side panels. Each piece The side panel has a round hole (no label). These two circular holes are coaxial. One of the side panels also has a small hole 11.

The reels 12 are placed on the two side panels of the frame 10 such that the reels 12 and the two side panels of the frame 10 are relatively rotatable. The middle section of the spool 12 is between the two side panels of the frame 10. One end (first end) of the spool 12 passes through a circular perforation of one of the side panels of the frame 10. The other end (second end) of the spool 12 passes through a circular perforation of the other side panel of the frame 10. The middle section of the spool 12 has elongated holes 22 which extend in the longitudinal direction of the spool 12 and have two closed ends. The elongated hole 22 has two open ends in the radial direction of the spool 12, that is, the elongated hole 22 penetrates the spool 12 in the radial direction of the spool 12. The spool 12 has a reduced diameter portion 23 at the first end and an enlarged diameter portion 24 at the second end. The enlarged diameter portion 24 has a plurality of holes 26. Each of the holes 26 penetrates the enlarged diameter portion 24 in the radial direction of the expanded diameter portion 24.

The ratchet 14 encloses the reduced diameter portion 23 of the spool 12 and causes the ratchet 14 and the spool 12 to rotate only together in a suitable manner. As the name suggests, the ratchet 14 has a plurality of ratchets 15 projecting from its edges.

The claws 16 are provided on one of the side plates of the frame 10 so that the claws 16 and the side plates are relatively swingable. The pawl 16 is next to the ratchet 14. The pawl 16 has a blunt end, a tip end and a tooth 17. The teeth 17 project from one side (first side) of the pawl 16 between the blunt end and the tip end. The pawl 16 pivots the side panel of the frame 10 near the blunt end. The teeth 17 of the pawl 16 can contact any of the ratchet teeth 15 of the ratchet 14. When the ratchet 14 is rotated in the first direction, the teeth 17 of the pawl 16 bounce on the ratchet teeth 15 of the ratchet 14, and the pawl 16 reciprocates. In an attempt to rotate the ratchet 14 in the second direction, the teeth 17 of the pawl 16 catch a ratchet 15 of the ratchet 14 such that the pawl 16 prevents the ratchet 14 from rotating in the second direction.

The handle 18 has a drive shaft 28 and a handle 30. The drive shaft 28 projects from one side of the handle 18 near one end. The axis of the drive shaft 28 is generally perpendicular to the longitudinal direction of the handle 18. In the present embodiment, it is a tubular member and has two holes 29. Of course, in another embodiment, the drive shaft 28 can be a rod-like member (solid) and has a bore 29. The other side of the head 30 is attached to the handle 18 near the other end. The head 30 and the handle 18 are relatively rotatable. The axis by which the head 30 is rotated is perpendicular to the longitudinal direction of the handle 18. Put the head This arrangement of 30 is for the convenience of turning the handle 18. The drive shaft 28 of the handle 18 can be inserted into the enlarged diameter portion 24 of the spool 12.

Referring to Figures 3 and 4, the safety device 20 has a pin 32 and a clip 34. The pin 32 has an enlarged diameter portion 36 at one end (first end). The enlarged diameter portion 36 has a circular hole 38. The circular hole 38 penetrates the enlarged diameter portion 36 in the radial direction of the expanded diameter portion 36. The clip 34 is made of a flexible steel wire. First, the steel wire is folded in half so that both ends of the wire are at one end of the clip 34 and the middle portion of the wire is at the other end of the clip 34. Next, the folded steel wire is U-shaped such that the clip 34 has a middle section and a side section which are substantially parallel to each other, the middle section being substantially perpendicular to the two side sections. Then, the ends of the wire are folded outward and then folded inwardly so that the ends of the wire become two substantially opposite insertion portions 40. Both ends of the wire form a triangle. The two insertion portions 40 are inserted into the circular holes 38 so that the clips 34 and the pins 32 are relatively swingable. Finally, the middle section of the wire is made into a ring 42. Ring 42 is generally triangular.

The first strap has an intermediate plate that connects the frame 10 at one end and a hook (not shown) at the other end. The second strap has one end that extends through the slot 22 of the spool 12 and the other end that is connected to the other hook (not shown).

The author of the author provides at least one drive state and one lock state. As shown in Fig. 1, in the driving state, the drive shaft 28 of the handle 18 is inserted into the enlarged diameter portion 24 of the spool 12. The hole 29 of the drive shaft 28 is aligned with a hole 26 of the enlarged diameter portion 24. The pins 32 are inserted into the holes 29 and 26. The enlarged diameter portion 36 of the pin 32 and the other end (second end) of the pin 32 are outside the enlarged diameter portion 24 of the spool 12. The second end of the pin 32 is fastened with a ring 42. In this manner, the clip 34 maintains the pin 32 inserted into the enlarged diameter portion 24 and the transmission shaft 28. In other words, the safety device 20 securely connects the handle 18 to the spool 12. Next, hook an object, such as a truck, with two hooks. Stick a piece of cargo with two straps. The handle 18 is operated to rotate the reel 12 in one direction (first direction). The reel 12 is wound up with a tape. In this way, the two straps secure the cargo to the truck. As the spool 12 rotates, the ratchet 14 also rotates and the teeth 17 of the pawl 16 bounce on a number of ratchet teeth 15 of the ratchet 14. At any moment, when the handle 18 is stopped, the reel 12 and the ratchet 14 are stopped, and the teeth 17 of the claw 16 are immediately A ratchet 15 of the ratchet 14 is caught. In other words, the pawl 16 secures the position of the ratchet 14 and the spool 12. Therefore, the tension of the two belts is maintained so that the goods are fixed on the truck.

To move the puller from the actuated state to the locked state, the ring 42 is first removed from the second end of the pin 32. Next, the pin 32 is pulled out of the holes 29 and 26. Finally, the drive shaft 28 is withdrawn from the enlarged diameter portion 24.

As shown in Fig. 2, in the locked state, the pin 32 is inserted into the small hole 11 such that the enlarged diameter portion 36 of the first end of the pin 32 is outside the frame 10 and the second end of the pin 32 is inside the frame 10. The second end of the pin 32 is fastened with a ring 42. As such, the clip 34 maintains the pin 32 inserted into one of the side panels of the frame 10. At this time, the pin 32 abuts against the other side (second side) of the claw 16 so that the claw 16 cannot be swung from the ratchet 14. In other words, the teeth 17 on the first side of the pin 32 cannot be disengaged from the ratchet teeth 15 of the ratchet 14. Therefore, the spool 12 cannot be rotated in the second direction. The tension of the belt will not drop. The goods will not come loose from the truck.

Note that the position of the aperture 11 cooperates with the length of the side section of the clip 34 such that the middle section of the clip 34 abuts the edge of the side panel of the frame 10 so that the clip 34 does not sway on the side panel of the frame 10.

As described above, the handle 18 can be removed from the spool 12 so that the handle 18 does not affect the stability of the handler by hooking the foreign object. In addition, the safety device 20 causes the pawl 16 to stably engage the ratchet 14 to fix the position of the spool 12 such that the tension of the strap is maintained and the cargo is secured to the truck.

10‧‧‧ box

11‧‧‧Small hole

12‧‧‧ reel

14‧‧‧ ratchet

16‧‧‧ claw

18‧‧‧Hands

20‧‧‧Safety device

22‧‧‧ long hole

24‧‧‧Expanding Department

26‧‧‧ holes

30‧‧‧ head

32‧‧ ‧ sales

34‧‧‧ clip

Claims (13)

A hand puller comprising: a frame; a roller reel which is mounted on the frame such that the reel is rotatable relative to the frame; a ratchet that is coupled to the reel so that the ratchet can only rotate together with the reel; a claw that is mounted on the frame, and when the ratchet is rotated in the first direction, the claw jumps on the ratchet to allow the ratchet to rotate, and when the ratchet is attempted to rotate in the second direction, the claw catches the ratchet and blocks the a ratchet; a handle; and a safety device movable between a driven state in which the handle is coupled to the spool, and a locked state in which the security device is placed in the frame The pawl is pressed so that the pawl stably engages the ratchet, thereby fixing the position of the spool. The hand puller of claim 1, wherein the safety device comprises a pin, in which the pin is inserted into the reel and the handle such that the reel can only rotate with the handle, in the locked state The pin is inserted into the frame to resist the paw. The hand puller of claim 2, wherein the reel has a plurality of holes, the handle has a drive shaft, the drive shaft has a hole, and in the driving state, the pin is inserted into one of the holes of the reel And the hole of the drive shaft. The hand-held device of claim 3, wherein the safety device further has a clip having a first end pivotally connected to the first end of the pin and a second end for covering the second end of the pin. The pin is stably inserted into the reel and the transmission shaft in the driving state, and is stably inserted into the frame in the locked state. A hand puller according to claim 4, wherein the pin has a hole at a first end thereof, the clip having two insertion portions at its first end inserted into the hole of the pin. A hand puller according to claim 5, wherein the clip has a loop at its second end that covers the second end of the pin. The hand puller of claim 6, wherein the clip has a middle section and two side sections, the two side sections being substantially parallel to each other, the middle section being substantially perpendicular to the two side sections, the insertion portions being on one side of the clip The ring is on the other side of the clip. The hand puller of claim 7, wherein the frame has a hole, the side section of the clip having a specific length such that when the pin is inserted into the hole of the frame, the middle portion of the clip abuts against the edge of the frame to avoid The clip swings. The hand puller of claim 1, wherein the pawl has a blunt end, a tip end, the first side engages the ratchet and the second side abuts the safety device. The hand puller of claim 9, wherein the pawl has a tooth projection on the first side, the ratchet having a plurality of ratchet teeth at the edge to engage the teeth of the pawl. A hand puller according to claim 2, wherein the handle further has a side of the head connecting the handle near the one end, and the drive shaft projects from the other side of the handle to the other end. The hand puller of claim 11, wherein the handle is rotatable relative to the handle. The hand puller of claim 12, wherein the axis by which the head is rotated is perpendicular to the longitudinal direction of the handle.