TW201325829A - Hand puller strap-stopping mechanism - Google Patents

Abstract

A strap-stopping mechanism is disclosed, which is suitable for a hand puller. The strap-stopping mechanism comprises a fixed shaft tightly and immovably fixed to the hand puller, and a clamping piece. The clamping piece has two force receiving portions. Each force receiving portion is placed into an elongated shape hole near the end of the fixed shaft of the hand puller to guide the clamping piece to displace between the first end and the second end of the elongated shape hole based upon the elastic force, thereby leaning against the fixed shaft and clamping on the elongated strap as normal state.

Description

Handle stop mechanism

The present invention relates to a hand-held device for binding use, and in particular to a structural improvement for imparting a band-stopping function.

Hand pullers are common in places where goods are circulated, and they have a binding effect on items.

Regarding the construction of the hand puller, reference can be made to the invention patent application No. 099109246 of Taiwan. The case is one of the early technologies owned by the applicant, and an application for a patent is filed in the United States, which is disclosed in No. 20110233493.

The US 493 hand puller (10) has a body (11) and a handle (31) which are passed by a passive shaft (16) to force the body to swing relative to the handle. The middle portion of the passive shaft is a passage (17) that allows a long strip (46) to partially expose the outside of the passage. There are a ratchet wheel (21) on each side of the passive shaft, and a plurality of continuous teeth are protruded around the ratchet wheel. One of the teeth is blocked by a first fastener (26) mounted on the body to temporarily stop the ratchet wheel, so as to be assembled on the handle. The second card fastener (36) drives the other teeth to drive the ratchet wheel to move in conjunction with the passive shaft. In addition, the remaining portion of the long belt is wound around the periphery of an automatic rewinding device (41) arranged at the handle.

Similar hand-drawn devices, such as U.S. Patent No. 20100293765 and German Patent No. 102010002052.

The United States '765 is also the applicant's early technology, and at the same time obtained the German 20th2009007685 and Taiwan's new certificate No. M389001 and other patent cases. In the '765 patent, it is disclosed that a manual rewinding device (50) disposed between the handle (20) and the passive shaft (30) has a fixed axis (not labeled), with the handle being close to the body (10) It can resist the area where the long belt (90) is suspended.

The hand puller (10) of the German '052 patent adds a belt stop mechanism (22) between the passive shaft (12) and the automatic rewinding device (13). This belt stopping mechanism is based on a fixed shaft (22a), and a pivoting member (22b) supports a holding member (22c) for pressing the long belt (20) through the fixed shaft.

The main purpose of the invention is to clamp the long belt with the belt stopping mechanism, reduce the speed of the rotary winding, and prevent the exposed end of the long belt from being quickly pulled back by inertia to accidentally injure the surrounding personnel.

Due to the above object, the present invention is a stop belt mechanism suitable for the construction of the aforementioned hand puller. The belt stopping mechanism comprises a fixed shaft fastened to the handler and not fixed, and a clamping piece, the clamping piece has two force receiving portions, and each force receiving portion is placed in a length of the end of the fixed shaft adjacent to the fixed shaft In the shaped hole, the guiding clamping piece is displaced between the first end and the second end of the elongated hole by the elastic force, and the fixed shaft is clamped and the long belt is normal.

The first end of each elongated hole is defined as a short side of the elongated hole closest to the passive axis of the puller, and the short side farthest from the passive axis of the puller is regarded as the second end, so as to be close to the second end The clamping piece cooperates with the fixed shaft to create a clamping effect on the long belt.

Simply put, a clamping space is formed between the fixed shaft and the clamping piece, which produces a desired clamping effect on the long strip passing through the space. The tightness of this gripping function changes as the gripping sheet is displaced along the length of the elongated hole. For example, the part of the long belt passing through the passive shaft is pulled outwards. Because the external force is greater than the elastic force, the belt surface drives the clamping piece to move toward the first end by the frictional relationship and away from the fixed shaft, resulting in a loose clamping effect. Even the clamping action is released.

However, after the external force disappears, the clamping piece is still displaced toward the second end by the elastic force. In particular, the automatic rewinding device applies the kinetic energy of the long belt, which in turn helps the clamping piece to get closer to the fixed shaft, forming a tighter clamping performance for the long belt, reducing the rate of the revolving and retracting, and avoiding the long end of the exposed belt. Pull back and accidentally hurt the people around you.

Hereinafter, the objects, structures, and features of the related embodiments will be described in detail based on the drawings, and it is believed that the techniques, means, and effects of the present invention can be obtained from an in-depth and specific understanding.

Referring to Figures 1 and 2, there is shown a hand puller 10 suitable for article binding, having a body 20 and a handle 30. The body 20 is bent in a pair of side panels 21 in the same direction, and is arranged on both sides of the handle 30. Next to the folded two flaps 31, a passive shaft 40 is passed through a plurality of circular holes 22 provided in the side panels 21 and the fins 31, so that the handle 30 and the body 20 are integrally connected and can be oscillated back and forth.

The passive shaft 40 has two curved rods 41. The pair of arcuate rods 41 are spaced apart to form a passage 43 by a pair of ratchets 42 that are sleeved beside the curved rods 41. This passage 43 is located in the middle of the passive shaft 40, allowing a long strip 50 to partially expose the outside of the passage 43.

The ratchet 42 and the driven shaft 40 are in a synchronous actuating relationship. A plurality of continuous teeth 44 are projected around the ratchet wheel 42, one of the teeth 44 being blocked by a first fastener 23 mounted to the body 20 to temporarily stop the ratchet wheel 42 from rotating. Only when the other teeth 44 are driven by the second fastener 32 assembled to the handle 30, the ratchet 42 is returned to the non-resisting state in response to the first fastener 23 being retracted, and the driven shaft 40 is rotated together to make the driven shaft 40 roll. Receive a local long strip of 50.

In addition, the remaining portion of the long strip 50 is wound around a periphery of an automatic rewinding device 52 (see FIG. 3) disposed on the body 20, and a stop mechanism disposed between the driven shaft 40 and the automatic rewinding device 52. 60, the portion of the long belt 50 that is suspended.

The strap mechanism 60 in the figure is composed of a fixed shaft 61 and a clamping piece 62. The two ends of the fixing shaft 61 are fastened to the corresponding side panels 21 and are not moved, and the clamping piece 62 has a clamping direction. The pressing portion 63 and the two force receiving portions 64 each extend outward from the side of the clamping piece 62, partially passing through the side plate 21 in an elongated hole 70 adjacent to the end of the fixing shaft 61, and A bent portion 65 connected to the force receiving portion 64 restricts the holding piece 62 from leaving the side piece 21 without interfering with the force receiving portion 64 moving back and forth in the elongated hole 70.

The elongated hole 70 extends through the wall surface of the side panel 21 and has two short sides and two long sides. The short side defined by the closest to the passive shaft 40 is the first end 71, and the short side farthest from the passive shaft 40 is regarded as the short side. The second end 72 and a projection 73 are formed at a portion of the two long sides adjacent to the first end 71 to serve as a mounting base for the torsion spring 80.

The coil portion of the torsion spring 80 is fitted around the periphery of the convex portion 73, and the torque is output to the longer end under the condition that the short end resists the side panel 21. The longer end passes through a through hole 66 in the middle portion of the holding piece 62, and the driving holding piece 62 is displaced between the first end 71 and the second end 72 of the elongated hole 70 until the pressing portion 63 is blocked by the fixed shaft 61. until.

As shown in Fig. 3, a clamping space is formed between the fixed shaft 61 and the holding piece 62, which produces a desired clamping effect on the long belt 50 passing through the space. In other words, the clamping piece 62 is moved toward the second end 72 by the elastic force, so that the pressing portion 63 is in a normal state against the fixed shaft 61, and the belt of the long belt 50 between the passive shaft 40 and the automatic rewinding device 52 can be clamped. surface.

In particular, the rewinding of the long strip 50 and the surface of the pressing portion 63 have a frictional force, which helps the holding piece 62 to approach the fixed shaft 61, thereby forming a tighter clamping performance on the belt surface, reducing the rate of the reeling and even preventing the length. Recycling with 50, to avoid hooks (not drawn) quickly pull back according to inertia and accidentally injured the surrounding people.

At this moment, the thrust force is applied to the force receiving portion 64 or the bent portion 65 to displace the holding piece 62 in the direction of the first end 71, so that the clamping relationship between the pressing portion 63 and the fixed shaft 61 can be released, resulting in automatic rewinding. Device 52 retracts long strip 50.

However, after the external force disappears, the clamping piece 62 is still displaced toward the second end 72 by the elastic force, and the tight clamping function is again achieved.

Next, as seen in Figures 4 and 5, the long strip 50 is forced through the portion of the driven shaft 40 and pulled outward in the direction of the arrow A. Since the external force is greater than the elastic force, the belt surface pushes the pressing portion 63 by the frictional relationship, and the clamping piece 62 is moved toward the first end 71 away from the fixed shaft 61, causing a loose clamping effect and even releasing the clamping action.

The above examples are merely illustrative of the invention and are not intended to limit the invention. Various changes, modifications, and applications derived from the above-described embodiments will be apparent to those skilled in the art.

10. . . Hand puller

20. . . Ontology

twenty one. . . Side piece

twenty two. . . Round hole

twenty three. . . First card firmware

30. . . handle

31. . . Wing

32. . . Second card firmware

40. . . Passive axis

41. . . Curved rod

42. . . ratchet

43. . . aisle

44. . . tooth

50. . . Long belt

52. . . Automatic rewinding device

60. . . Stop mechanism

61. . . Fixed axis

62. . . Holding piece

63. . . Pressing department

64. . . Force department

65. . . Bending section

66. . . Through hole

70. . . Long hole

71. . . First end

72. . . Second end

73. . . Convex

80. . . Torsion spring

A. . . arrow

Fig. 1 is a perspective view showing a state in which a preferred embodiment of the hand puller of the present invention is partially exploded.

Figure 2 is a perspective view showing the assembled hand puller.

Figure 3 is a side view showing the hand gripper that clamps the long belt.

Figure 4 is a side view showing the hand puller that relieves the clamping action.

Figure 5 is a plan view, partially enlarged to the circle of Figure 4.

10. . . Hand puller

20. . . Ontology

twenty one. . . Side piece

twenty three. . . First card firmware

30. . . handle

31. . . Wing

32. . . Second card firmware

40. . . Passive axis

41. . . Curved rod

42. . . ratchet

43. . . aisle

44. . . tooth

50. . . Long belt

52. . . Automatic rewinding device

60. . . Stop mechanism

61. . . Fixed axis

62. . . Holding piece

63. . . Pressing department

64. . . Force department

65. . . Bending section

66. . . Through hole

71. . . First end

72. . . Second end

80. . . Torsion spring

Claims (5)

A hand puller mechanism includes: a hand puller having a body and a handle, the two being passed by a passive shaft to force the body to swing relative to the handle; the middle portion of the passive shaft is a passage, the passive shaft There is a ratchet on each side, and a plurality of continuous teeth are protruded around the ratchet. One of the teeth is blocked by a first fastener attached to the body to temporarily stop the rotation of the ratchet, so that a second fastener assembled to the handle drives the other teeth to drive the ratchet Together with the passive shaft rotation movement; a long belt partially exposes the outside of the passage, and the remaining portion is wound around a periphery of the automatic rewinding device arranged in the hand puller; characterized in that: a stop mechanism is arranged in the hand puller between the passive shaft The portion between the automatic rewinding device and the automatic rewinding device includes a fixed shaft that is fastened to the handler and does not move; a clamping piece has two force receiving portions, and each of the force receiving portions is placed in the hand puller and fixed In an elongated hole of the end portion of the shaft, the guiding clamping piece is displaced between the first end and the second end of the elongated hole by elastic force, and the fixed shaft is clamped and the long belt is normally held. The hand strap stop mechanism according to claim 1, wherein the elongated hole is disposed on a side piece bent on a side of the body, and the short boundary of the long hole wall surface closest to the passive axis is defined as The first end, and the short side farthest from the passive axis is regarded as the second end, so that the clamping piece near the second end forms a clamping space with the fixed shaft, and the clamping effect is generated on the long belt passing through the space. The hand strap stop mechanism according to claim 2, wherein the elongated hole wall surface has two long sides, wherein one of the long sides adjacent to the first end forms a convex portion, and a convex portion is mounted on the convex portion. A torsion spring that provides the spring force required to hold the clamp near the second end. The hand strap stopping mechanism according to the first, second or third aspect of the patent application is characterized in that: the force receiving portion is connected with a bending portion, and the holding piece is restricted from leaving the side piece, but does not interfere with the force receiving portion. The elongated hole moves back and forth. The hand strap stop mechanism according to claim 4, characterized in that the clamping piece has a pressing portion that cooperates with the fixed shaft to clamp the long belt.