TWI530433B - Hand puller - Google Patents

Description

Hand puller

The invention relates to a hand puller, in particular to a hand puller which can bundle goods.

Referring to Figure 1, when the general transport vehicle carries the cargo, in order to prevent the stacked cargo from shaking or slipping, the cargo is mainly fixed by the hand puller 1. The hand puller 1 mainly includes a first tether 11 , a second tether 12 , a first tie member 13 , and a second tie member 14 coupled to the first tether 11 . The first tensioning member 13 and the second tensioning member 14 of the second tensile member 14 are pivoted, and the two ratchets 16 are respectively sleeved with the two ends of the winding shaft 15. The first pull tab 13 has a dial 131 that engages or disengages the ratchets 16 . The second tie member 14 has a card piece 141 that limits the ratchet teeth 16 to be rotated only in a clockwise direction.

In use, it is only necessary to initially bind the goods by the first and second tethers 11, 12, and then reciprocally pull the first pulling member 13 to be able to block the ratchet teeth 16 in the card piece 141. The first puller 13 that rotates the dial 131 in the clockwise direction rotates the ratchets 16 to unidirectionally rotate, and the first pull of the dial 131 rotates counterclockwise. The tab 13 springs off the ratchets 16 when the ratchets 16 are unidirectionally rotated in a clockwise direction The take-up reel 15 is wound around the second tether 12 to shorten the length, thereby maintaining the tightness when the first and second tethers 11 and 12 are tied, thereby achieving the purpose of tightening the goods.

When unwinding, the user must pull the dial 130 away from the ratchets 16 with one finger, while applying a force to rotate the first puller 13 to the second puller in a clockwise direction. After about 180 degrees, the convex portion (not shown) of the end edge of the first tensile member 13 can be used to push the clamping piece 141 away from the ratchet teeth 16, thereby enabling the winding shaft 15 to be The two-way rotation is used to release the second tether 12.

However, in order to enable the ratchets 16 to be rotated only in the clockwise direction, the first pull tab 13 and the second pull tab 14 respectively use the dial 131 and the clip 141 having an elastic restoring force. Not only the components are heavy, but also heavy, and since the card piece 141 abuts against the ratchet teeth 16 in a frictional contact manner, and is opposite to the drawing direction of the second tether 12, when vibrating or When a foreign object falls between the card piece 141 and the take-up reel 15, the card piece 141 may reduce the clamping force generated by the friction by the ratchet teeth 16, so that the second tether 12 is removed. There is a loose crisis that creates the danger of unwinding.

Accordingly, it is an object of the present invention to provide a hand puller that can simplify a component and improve the ease of operation.

Therefore, the hand puller of the present invention is used for pulling a first tie and a second tie of the reverse pull, the puller comprises a first pull component, a second pull component, a roll A shaft, at least one ratchet set, and a card unit. The second pull fastener is coupled to the first strap. The take-up reel pivots the first tie member, the second pull member along an axis, and winds the second tie. The ratchet set is associated with the take-up reel and at least a portion is disposed within the first hollow. The card unit has a first hollow portion extending through the first pull member along the axis and passing through the take-up spool, and at least one first tooth groove formed on an inner surface of the first hollow portion. The first hollow portion is movable relative to the take-up reel such that the first pull member and the first chute are located at a braking position that engages the ratchet set and a lost position of the ratchet set.

The invention has the beneficial effects that the special space design of the first hollow portion and the first tooth groove can drive the ratchet group to unidirectionally rotate, thereby simplifying the assembly and reducing the weight and cost.

21‧‧‧First tie

22‧‧‧Second tie

3‧‧‧First pull fasteners

31‧‧‧Connecting Department

32‧‧‧Handheld

33‧‧‧First convex

38‧‧‧ ribs

4‧‧‧Second pull parts

40‧‧‧ board seat

41‧‧‧ rods

42‧‧‧First recess

43‧‧‧Auxiliary blank

44‧‧‧Flexible components

45‧‧‧Protruding

46‧‧‧Second recess

47‧‧‧ Limiting surface

5‧‧‧Reel shaft

6‧‧‧ ratchet group

61‧‧‧Inner ratchet

62‧‧‧Outer ratchet

601‧‧ ‧Slope

602‧‧‧Reverse stop

7‧‧‧Card unit

71‧‧‧The first short department

711‧‧‧ wearing section

712‧‧‧vacant section

72‧‧‧First cogging

721‧‧‧stop surface

73‧‧‧Second Hollow Department

731‧‧‧ wearing section

732‧‧‧vacant section

74‧‧‧second cogging

741‧‧ ‧ stop surface

X‧‧‧ axis

L‧‧‧ midline

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: FIG. 1 is a cross-sectional view illustrating a hand-held device for bundling goods; FIG. 2 is an exploded perspective view of the present invention. A first preferred embodiment of the hand-held device; FIG. 3 is a combined perspective view of the first preferred embodiment; FIG. 4 is a cross-sectional view of the first preferred embodiment; In a first preferred embodiment, a first slot on a first pull tab rotates a ratchet set, and the ratchet set is disengaged from a second slot on a second tie member; a side view illustrating that the first slot on the first tie member slips off the ratchet set in the first preferred embodiment, and the ratchet set and the second pull The second slot on the base is engaged; FIG. 7 is a side view showing the second rib of the first preferred embodiment being engaged with the second recess to make the first tooth on the first tie The slot is stabilized at a position away from the ratchet set; FIG. 8 is a side view showing the first pull tab moving to an idle position in a direction opposite to a roll axis in the first preferred embodiment; 9 is a side view, in which the take-up reel can be bi-directionally rotated in a disengaged state in the first preferred embodiment; FIG. 10 is a perspective view showing a second preferred embodiment of the puller of the present invention; Figure 11 is a side elevational view of the second preferred embodiment of the first preferred embodiment of the first pull tab of a ratchet set, and the ratchet set is disengaged from a second pull tab The second tooth groove and the slip-off auxiliary block; FIG. 12 is a side view showing that the first tooth groove on the first pull member slips off the ratchet set in the second preferred embodiment, and the The ratchet set is engaged with the auxiliary flap on the second pull member; and FIG. 13 is a side view showing that the spool shaft of the second preferred embodiment can be bi-directionally rotated and unwound.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 2, FIG. 3, and FIG. 4, a preferred embodiment of the hand puller of the present invention is used for pulling a first tether 21 and a second tether 22, including a first tie member 3, Second pull member 4, a roll belt shaft 5, and two ratchet groups 6.

The first pulling member 3 has two connecting portions 31, a grip portion 32 connecting the connecting portions 31, and two first convex portions 33 respectively formed at one edge of the connecting portion 31, and are respectively formed on the first pulling portion 31. The connecting portion 31 has two ribs 38 on the inner side surface.

The second pulling member 4 has a two-plate seat 40 spaced apart from each other, and a rod member 41 connected to one end portion of the plate base 40 and coupled to the first strap 21 is formed at an upper end of the plate seat 40, respectively. Two first recesses 42 of the rim, two protrusions 45 formed on the plate holder 40 adjacent to a rear end edge, and two second recesses 46 respectively formed at the corners of the upper edge of the plate holder 40, and respectively formed on The upper end edge of the plate seat 40 is located on the second limiting surface 47 between the second recess 46 and the first recess 42. The projections 45 are the two ends of a rod in the preferred embodiment.

The take-up reel 5 pivots the joint portion 31 of the first tie member 3 and the seat 40 of the second pull tab 4 along the axis X, and winds the second strap 22.

The ratchet set 6 is unitary in the preferred embodiment and is divided into an inner ratchet 61 on the inside and an outer ratchet 62 on the outside. The inner ratchets 61 and the outer ratchets 62 are sleeved on both ends of the take-up reel 5, and are interlocked with the take-up reel 5, and have a plurality of spurs 601 extending outward from an outer peripheral surface, and adjacent The camber slope 601 and the number of the outer circumferential surface are opposite to the stop surface 602. It should be noted that the inner ratchet 61 and the outer ratchet 62 may also be separated, and the outer diameter of the inner ratchet 61 and the outer ratchet 62 may be one size, one size, the same, or one small one. One.

The carding unit 7 has two first hollow portions 71 extending through the connecting portions 31 along the axis X and passing through the winding shaft 5, and a plurality of first teeth formed on an inner surface of the first hollow portion 71. a groove 74, two second hollow portions 73 extending through the plate seat 40 along the axis X and passing through the winding shaft 5, and an inner surface of the second hollow portion 73 and opposite to the first teeth respectively The number of second slots 74 of the slot 72. The first hollow portion 71 and the second hollow portion 73 are substantially elongated and intersect with the axis X through a center line L of the two elongated ends to form an inclination angle. The first hollow portion 71 and the second hollow portion 73 respectively have a wearing portion 711, 731 having a larger diameter than the winding shaft 5, and the opening is larger than the wearing portions 711, 731 and respectively provided for the ratchet group 6A vacant section 712, 732 which is inserted by the inner ratchet 61 and the outer ratchet 62. The first and second slots 72 are formed in the vacant sections 711 and 731, respectively, and have a stop surface 721 and 741 opposite to the reverse surface 602.

Referring to FIG. 3, FIG. 4, and FIG. 6, in use, the first and second tethers 21, 22 are also initially bundled, and at this time, since the first tether 21 is opposite to the second tether 22 Extending, therefore, the tension of the second strap 22 pulls the take-up reel 5 to the right side of the drawing to an inner edge that is blocked by the second hollow portion 73 wearing section 731, so that the take-up reel The ratchet group 6 on the 5 is further engaged with the second slots 74, whereby the stop faces 741 of the second slots 74 and the ratchet groups 6 in the vacant segments 732 are reversed. The 602 blocks each other such that the ratchet groups 6 together with the take-up reel 5 are blocked from the second slots 74 and cannot be rotated in a counterclockwise direction (reverse direction), but only in a straight direction (forward) Swirl.

Referring to FIG. 4 and FIG. 5, when the user uses the first hollow portion 71 With the gap between the take-up reel 5 and the ratchet set 6, the first pull member 3 is pushed in the direction of the take-up reel 5 until the first slots 72 are engaged with the ratchet groups 6 When the first pulling member 3 is pulled in a clockwise direction and the convex portions 38 are blocked by the limiting surface 47, the first pulling member 3 will wait for the first slot 72. The stop surface 721 and the ratchet group 6 in the vacant section 712 are mutually blocked, and the ratchet groups 6 are synchronously dialed, so that the ratchet sets 6 drive the take-up reel 5 and the spines The tooth set 6 is rotated in a clockwise direction. At this time, the ratchet group 6 in the vacant sections 732 will be slid in the clockwise direction, and the second pull member 4 is slid off by the spurs 601. The second slots 74 are unidirectionally rotated in a clockwise direction.

Referring to FIG. 5 and FIG. 6, when the user pulls back the first pulling member 3 in the counterclockwise direction, the backing surface 602 of the ratchet group 6 in the vacant portion 732 is blocked by the second slot. The stop surface 741 of the 74 can not be rotated in the counterclockwise direction. Therefore, the first slot 72 on the first pull tab 3 will follow the camber 601 of the ratchet set 6 to slip off, and When the take-up reel 5 is not moving, the first pull tab 3 is displaced toward the right side of the drawing by the movement of the wearing section 711 of the first hollow portion 71. Thereby, the reeling of the first pulling member 3 can drive the take-up reel 5 to rotate in a clockwise direction, and wind the second strap 22 to shorten the length for maintaining the first The tightness of the second tethers 21, 22 is tied to the purpose of tightening the goods.

Referring to FIG. 7, after the first and second tethers 21, 22 are tightened, the gap between the first hollow portion 71 and the take-up reel 5 and the ratchet group 6 is reversed, and the tape is reversed. Pulling the first pull member 3 in the direction of the shaft 5 until the first slots 72 are disengaged from the ratchet group 6 and are in an idle position, and Pulling the first pull member 3 in the hour hand direction, and the ribs 38 are engaged with the second recess portions 46, so that the first gullet 72 on the first pull member 3 can be stabilized from the spine. The position of the set of teeth 6 does not have the action of driving the set of ratchets 6.

Referring to FIG. 8 and FIG. 9, when the tape is unwound, only the gap between the take-up reel 5 and the first hollow portion 71 is used, and the vacant segments 712 and the ratchet groups 6 are utilized. The first tooth groove 72 can be interlocked by holding the grip portion 32 with a finger of one hand and pulling the first pull member 3 to the idle position in a direction opposite to the take-up reel 5 The stop surface 721 is disengaged from the ratchet group 6, and the first pull member 3 can be rotated in a clockwise direction to the ribs 38 to engage with the first recesses 42 to be stable from the ratchet The position of the group 6 at this time, the first convex portion 33 that is rotated with the first pulling member 3 and the protruding portions 45 push each other, so that the first pulling member 3 is forced by the protruding portions 45, and the tape reel 5 is displaced in the wearing section 731 of the second hollow portion 73 toward the left side of the drawing, and the ratcheting groups 6 are interlocked in the empty segment 732 to be disengaged from the A tooth groove 72 allows the take-up reel 5 to be loosened and can be rotated in both directions to release the second tether 22.

Referring to FIG. 10, a second preferred embodiment of the present invention is substantially the same as the first preferred embodiment, and includes a first pull member 3, a second pull member 4, and a take-up reel 5 And a ratchet group 6, the difference is that the second pull member 4 replaces the second slot 74 as shown in FIGS. 2-8 with an auxiliary flap 43 and an elastic member 44. The auxiliary flap 43 is displaceably mounted between the seats 40. The elastic member 44 is disposed on the auxiliary flap 43 and the plate holders 40. The elastic member 44 is free from external force, The auxiliary flap 43 is elastically applied to engage the auxiliary blade 43 with the ratchet set 6.

And the wearing section 741 and the vacant section 742 of the second hollow portion 73 respectively fit the winding belt 5 and the ratchet groups 6 to be circular, thereby limiting the winding shaft 5 together with the ratchet groups 6 can only be rotated within the second hollow portion 73 and cannot be displaced.

Referring to FIG. 11, when the user pulls the first pull member 3 at the braking position in a clockwise direction, the first pull member 3 will be vacant with the stop surface 721 of the first gullet 72. The ratchet group 6 in the segment 712 blocks the backstop surfaces 602 from each other, and simultaneously aligns the ratchet groups 6 such that the ratchet groups 6 drive the take-up spool 5 and the ratchet groups 6 in a clockwise direction. Rotating in the forward direction, at this time, the ratcheting group 6 will push the auxiliary blocking piece 43 to compress the elastic member 44 in the clockwise direction during the clockwise rotation, and slip off the auxiliary gear The sheet 43 is unidirectionally rotated in a clockwise direction.

Referring to FIG. 12, when the user pulls back the first tie member 3 in a counterclockwise direction, the first slot 72 on the first link member 3 follows the camber slope 601 of the ratchet group 6. And the first pulling member 3 is moved along the wearing portion 711 of the first hollow portion 71 to the right side of the drawing while the winding shaft 5 is not moved, and can be driven without the ratchet In the case of group 6, it is rotated counterclockwise. Thereby, only by reciprocatingly pulling the first pulling member 3, the take-up reel 5 can be driven to rotate in a clockwise direction to achieve the purpose of tightening the goods.

Referring to FIG. 13, it should be noted that the second preferred embodiment is unfastened in the same manner as the first preferred embodiment, and only needs to be a one-handed hand. Holding the grip portion 32, pulling the first pull member 3 to the idle position in a direction opposite to the take-up reel 5, and rotating the first pull member 3 in a clockwise direction to the same The ribs 38 are engaged with the first recesses 42 to stabilize the first gullets 72 from the position of the ratchet set 6, so that the first protrusions 33 of the first tie member 3 can be utilized. The auxiliary flaps 43 are pushed against each other, and the auxiliary flaps 43 are compressed to be disengaged from the ratcheting sets 6, so that the take-up reel 5 is loosened and can be bi-directionally rotated to release the second tether 22.

In summary, the hand puller of the present invention has the following advantages and effects:

1. The present invention can only limit the ratchet set by the special spatial arrangement and structural design of the first slot 72 and the second slot 74 and the first link 3 and the second link 4 The purpose of the one-way rotation is not only to omit the elastic dial 131 and the elastic card sheet 141 as shown in FIG. 1, but to simplify the assembly and to reduce the overall weight and assembly cost.

2. When the second strap 22 is released, the user only needs to hold the grip portion 32 with one hand, and then pull the first pull tab 3 and rotate the first pull tab. The action of the member 3 not only exerts a smooth force, but also greatly improves the convenience in releasing the operation of the second strap 22.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

3‧‧‧First pull fasteners

31‧‧‧Connecting Department

33‧‧‧First convex

38‧‧‧ ribs

4‧‧‧Second pull parts

40‧‧‧ board seat

41‧‧‧ rods

42‧‧‧First recess

45‧‧‧Protruding

46‧‧‧Second recess

47‧‧‧ Limiting surface

5‧‧‧Reel shaft

6‧‧‧ ratchet group

601‧‧ ‧Slope

602‧‧‧Reverse stop

71‧‧‧The first short department

711‧‧‧ wearing section

712‧‧‧vacant section

72‧‧‧First cogging

721‧‧‧stop surface

73‧‧‧Second Hollow Department

731‧‧‧ wearing section

732‧‧‧vacant section

74‧‧‧second cogging

741‧‧ ‧ stop surface

Claims (10)

A hand puller for pulling a first tie and a second tie, the puller comprising: a first pull component; a second pull component coupled to the first tie; a take-up reel pivoting the first pull member, the second pull member along an axis, and winding the second strap; at least one ratchet set interlocking with the take-up reel; and a snap unit a first hollow portion penetrating the first pull fastener member along the axis and passing through the take-up spool shaft, and at least one first tooth groove formed on an inner surface of the first hollow portion, the first hollow The portion of the ratchet set is slidable and movable relative to the take-up reel so that the first pull member and the first gullet are located at a braking position that engages the ratchet set and slips off the ratchet An empty position of the group. The hand puller of claim 1, wherein the first pull fastener has two joints connected to the take-up spool, and a grip connecting the joints, the ratchet set has two The first hollow portion of the card unit and the first tooth groove respectively have two and are respectively formed at the connecting portions, and the first tooth grooves respectively have a one that can block the rotation of the ratchet groups. Stop face. The hand puller of claim 2, wherein the second pull member has two seats spaced apart by a distance, and a rod connecting the one end portions of the plate seats and connecting the first tie band, The clamping unit further has two second hollow portions penetrating the plate seats along the axis and passing through the winding shaft, and respectively formed on The second hollow portion has an inner surface and is respectively opposite to the second plurality of slots of the first slots, and the second hollow portions are respectively disposed for the other portions of the ratchet groups, and the second slots have respectively a stop surface that can block the rotation of the ratchet groups. Under the action of an external force, the ratchet sets are displaced in the second hollow portion along the take-up reel, and are respectively located in the second cogging a first position in which the stop faces are engaged and can only be rotated in one direction, and a second position in which the second slots are disengaged from the second slots. The hand puller of claim 3, wherein the external force that drives the take-up reel in the first position is derived from the tension of the second tether. The hand puller according to claim 3, wherein the ratchet groups respectively have a plurality of spur slopes extending outward from an outer circumferential surface and forming an arc, and respectively adjoining the sloping slopes and the outer circumferential surface and capable of The number of reverse faces that are blocked from the stop faces. The hand puller of claim 3, wherein the first pull fastener further has two first convex portions respectively formed at one end edge of the joint portion, and the second pull fastener member is further formed on the two Two protrusions of the plate holder, and the first protrusions respectively push forward with the protrusions when the first link member is positively rotated to contact the protrusions, so that the first line is pushed against the protrusions The piece drives the take-up reel in the second hollow portion in a direction opposite to the protrusions, and interlocks the ratchet sets to be stable from the second slot. The hand puller of claim 3, wherein the first hollow portions and the second hollow portions are respectively elongated and formed, and an angle is formed by a center line of the two narrow ends intersecting the axis to form an inclination angle . The hand puller according to claim 2, wherein the second pull member has two seats spaced apart by a distance, a rod connected in series with one end of the plate seat and coupled to the first strap, and is displaceable An auxiliary baffle mounted between the plate seats, and at least one elastic member disposed between the auxiliary baffle and the plate block, the auxiliary baffle is subjected to the elastic force of the elastic member to block the ratchet teeth The group is reversely rotated and pushed by the positively rotating ratchet group to disengage the ratchet group against the aforementioned elastic force. The hand puller of claim 8, wherein the first pull fastener further has two first convex portions respectively formed at edges of the joint portions, the first pull fasteners being opposite to the take-up tape The direction of the shaft is displaced to the idle position, and the first protrusions are mutually rotated with the auxiliary blocking piece when the first pulling part is positively rotated to contact with the auxiliary blocking piece. Squeeze, and drive the auxiliary flap to stabilize from the position of the ratchet set. The handle according to claim 3, wherein the first puller further has at least one rib formed on an inner side of the joint, and the second puller is further formed on the handle Two first recesses at one end of the plate seat, the ribs being located in the idle position with the first pull member and being rotated to be positioned in the first recesses to stabilize the first slots from the The position of the ratchet group.