JP2001287741A - Fastening device for loaded items - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fastening device for loaded items in which a tension is applied to a plurality of wires with one time operation and a fastening operation can be smoothly carried out. SOLUTION: There are provided a machine frame 1; a plurality of winding-up pulleys 3 biased by a spiral spring 28 in a wire winding-up direction and having gears installed therein; an intermittent gear 2 formed with a gear part 41 engaged with the gear of each of the pulleys 3 and a toothless part 42 allowing a free rotation; an operating mechanism 5 for turning the intermittent gear 2 in a wire winding-up direction; a wire Y wound at each of the pulleys 3 and pulling loaded items; and a lock mechanism 5R. Each of the pulleys 3 can always be turned and when the operating mechanism 5 is operated, the intermittent gear 2 is engaged with each of the gears, the pulleys 3 are turned and the wire Y is wound on them and tensioned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for fastening a load to a loading means, such as a loading platform or a pallet, to fasten the load to the loading means with one touch.

[0002]

2. Description of the Related Art When an unstable load such as a motorcycle is placed and transported on a loading means such as a bed of a car, a floor of a transportation device, a pallet for transportation, or the like, a hook or a ring hooked on the load is used. With a plurality of wires with hooking means of
A method of pulling and fixing a load from the periphery has been implemented.

[0003]

In the fixing method in which the load is pulled from the surroundings by a plurality of wires, if all the wires can be tensioned at once, the fastening operation can be performed quickly and reliably. For this reason, a device for winding a plurality of wires at the same time is used. Conventionally, a rack and pinion type in which a rack is connected to the plurality of wires and a pinion is rotated to tension the wires. For this reason, there is a drawback that the pulling force acts on the wire and the position of the rack shifts, so that the meshing between the rack and the pinion is poor and the fastening operation cannot be performed smoothly. The purpose of this invention is
It is an object of the present invention to provide a load fastening device capable of applying tension to a plurality of wires by a single operation and facilitating a fastening operation.

[0004]

SUMMARY OF THE INVENTION A load fastening device according to the present invention is provided with a machine frame, a rotatable attachment to the machine frame, a bias in the wire winding direction by a spring, and a gear. A plurality of wire take-up pulleys, and an intermittent gear formed at a center position between the plurality of pulleys, and formed with tooth portions meshing with gears of the respective pulleys and toothless portions allowing free rotation of the respective pulleys. Operating means for rotating the intermittent gear in the wire winding direction of each pulley, a wire wound on each pulley and pulling a load, and a lock mechanism for the intermittent gear or operating means. Before the operation of the operation means, the toothless portion of the intermittent gear is set at a position facing the respective gears, and the respective pulleys are rotatable, and the operation means is operated. When the intermittent gear is rotated, the teeth and the respective gears are meshed with each other, the pulley is rotated and the wire is wound and tensioned, and the tension of the wire is maintained by the operation of the lock mechanism. When the lock mechanism is released, the intermittent gear rotates in the opposite direction to disengage the gears from each other and the pulleys can rotate.

[0005]

According to the first aspect of the present invention, the intermittent gear is rotated by operating the operating means, all the pulleys are driven, and the wire is wound and tightened.
Thus, the load loaded on the loading means can be fastened to the loading means with one touch. Further, when the wire is pulled and the hooking means is hooked on the load, the wire can be pulled out. Therefore, by operating the operating means, the load can be fastened to the loading means with one touch.

According to a second aspect of the present invention, the intermittent gear includes a wheel, teeth that mesh with the gears of the pulleys, and toothless portions that allow free rotation of the pulleys. It is characterized by comprising an intermittent gear ring plate finely movably connected to the wheel, and a fine movement mechanism by an elastic member interposed between the wheel and the intermittent gear ring plate. With this configuration, the intermittent gear and the gear of each pulley can be smoothly meshed.

According to a third aspect of the present invention, the toothed portion of the intermittent gear and the gear tooth of each of the pulleys are flat teeth. By using the spur teeth, the meshing between the intermittent gear and the gear of each pulley is ensured, the durability is excellent, and the manufacturing cost is reduced.

According to a fourth aspect of the present invention, in the load fastening device, the operation means is an operation lever, and the lock mechanism is provided on the operation lever. Operability can be improved, and the lock mechanism can be released with one touch.

[0009]

1 to 4 show an apparatus A for fastening a load according to the present invention, in which a machine frame 1 having a flat rectangular box shape and an intermittent gear attached to the center of the machine frame 1 are shown. 2 and
And four take-up pulleys 3 arranged at equal intervals on the same circumference centered on the intermittent gear 2. A wire Y is wound around each pulley 3, and a hook F as a hooking means is provided at the tip of each wire Y.

The wire Y includes a flexible wire other than a stranded wire of a thin metal wire such as a rope, a string, and a chain, and is appropriately used depending on the application. Hook means other than hook F, ring,
It may be another structure such as a clip or a loop, or may be an engaging element that engages with the load or the engaged portion provided on the loading means side.

In this embodiment, the machine casing 1 has a structure in which a cover plate 12 having a thin, thin left and right width and a substantially zigzag cross section is fastened to a bottom plate 11 having a large thickness and a large area. On the bottom plate 11 on the left and right sides of the cover plate 12 in the figure, a total of four roller covers 1 having a substantially Z-shaped cross section are provided in the front and rear (lower upper part of FIG. 1).
4 are concluded. Each roller cover 14 and bottom plate 11
The turning roller 15 is rotatably installed between the two.

Each wire Y is drawn through the turning roller 15 in the left-right direction of the machine frame 1. An operation mechanism 5 having an operation lever 50 for rotating the intermittent gear 2 in the winding direction of the wire Y is attached to the bottom plate 11 at the intermediate portion on the right side of the cover plate 12. The operation mechanism 5 is shown in FIG.
As shown in the figure, it is also possible to attach it to another member and remotely control it.

The intermittent gear 2 is a gear whose upper and lower ends are fixed to a cover plate 12 and a bottom plate 11 of the machine casing 1 as shown in FIGS. 1, 2, and 5 (a), (b), and (c). Axis 21,
A wheel 23 is rotatably supported on the gear shaft 21 via a bearing 22. The wheel 23 includes a circular can portion 24 on the center side and a flange portion 25 on the outer periphery. Circular can 24
Are formed at regular intervals at three locations on the outer periphery. The intermittent gear ring plate 4 is attached to the flange portion 25 so as to be finely movable.

A sleeve 27 is fitted on the outer periphery of the gear shaft 21, and one end of the sleeve is locked to the sleeve 27 and the other end is locked to the inner peripheral wall of the can 24. A spiral spring 28 is housed. The spiral spring 28 urges the wheel 23 in the direction in which the operation lever 50 returns. The lower surface of the wheel 23 is closed by a wheel cover 20 rotatably attached to the gear shaft 21 via a bearing 29. It is natural that a torsion spring, a coil spring, or another spring can be used instead of the spiral spring 28 depending on the type of the load and the size of the fastening device A.

The intermittent gear ring plate 4 has teeth 4 at equal intervals on the outer periphery.
1 and toothless portions 42 are provided alternately by four, and the inner circumference is
The recess 2 has an inner diameter that fits loosely into the circular can portion 24 and
6, three projections 43 are provided at equal intervals. A loose fitting hole 44 is formed at a position facing the projection 43 of the intermittent gear ring plate 4. Intermittent gear ring 4 is wheel 2
3 is attached via a fine movement mechanism 6 so as to be finely movable.

As shown in FIG. 6A, the fine movement mechanism 6 includes a bush 62 formed of an elastic material such as rubber and having a substantially cylindrical shape and having three recesses 61 formed at equal intervals. It has a structure fitted in a gap between the inner periphery of the gear ring plate 4 and the outer periphery of the circular can portion 24. The intermittent gear ring plate 4 is fastened to the flange 25 so as to be finely movable by a stepped screw 63 which is loosely fitted in the loose fitting hole 44 and inserted therethrough. The fine movement mechanism 6 allows a small radial or circumferential displacement when an external force acts on the intermittent gear ring 4.

FIG. 6B shows another embodiment of the bush 62. The bush 65 of this embodiment comprises an annular plate portion 66 formed of a leaf spring and a row of claws 67 provided on the inner periphery thereof in a tapered cylindrical shape. The claw 67 has three missing portions at positions corresponding to the three inner peripheral protrusions 43, and has a structure to be fitted into a gap between the inner periphery of the intermittent gear ring plate 4 and the outer periphery of the circular can portion 24. I have. In this configuration, the bush 65
Due to the elasticity of the leaf springs in the row of the pawls 67, the inner periphery of the intermittent gear ring plate 4 and the outer periphery of the circular can portion 24 are connected while allowing minute displacement in the radial or circumferential direction.

The four winding pulleys 3 have a structure similar to that of the intermittent gear 2 as shown in FIG. Pulley shafts 31 whose upper and lower ends are fixed to the cover plate 12 and the bottom plate 11 of the machine frame 1 are arranged on four sides of the intermittent gear 2 on the same circumference around the gear shaft 21. A wheel 33 is rotatably supported on a pulley shaft 31 via a bearing 32. The wheel 33 is composed of a circular can portion 34 on the center side and a flange portion 35 on the outer periphery. 3 recesses on the outer periphery of the circular can 34
6 are formed at three locations at equal intervals.

A gear ring plate 45 provided with teeth which mesh with the teeth 41 is fixed to the flange portion 35. The gear ring plate 45 has on its outer circumference teeth 46 meshing with the teeth 41 and has an inner circumference with an inner diameter that is loosely fitted into the circular can section 34 and three projections 47 that fit into the recesses 36. They are provided at equal intervals. A fixing screw hole 48 is formed at a position facing the projection 47 of the gear ring plate 45.

A sleeve 37 is fitted around the outer periphery of the pulley shaft 31, and one end of the sleeve is locked to the sleeve 37 and the other end is locked to the inner peripheral wall of the can 34. A spiral spring 38 is housed. The spiral spring 38 urges the wheel 33 in the winding direction of the wire Y. The lower surface of the wheel 33 is closed by a wheel cover 30 rotatably mounted on the pulley shaft 31 via a bearing 39.

The operating mechanism 5 includes a vertical plate portion 5 fixed parallel to the bottom plate 11 of the machine frame 1 located on the right side of the cover plate 12.
A, a bracket 51 having a substantially Japanese character cross section having 5A, and a strip 5 having one end rotatably connected to the vertical plates 5A, 5A.
B, 5B.

The other ends (rotational side ends) of the band plates 5B, 5B are rotatably connected to the distal ends (left end side in the figure) of the lever plates 53, 53. The lever plates 53, 53 are at the rear end (right end in the figure).
Are connected by a grip 54 to form an operation lever 50, and the tip is connected by a rear pin 56 of a slider 55 described later.

A rail 57 having a U-shaped cross section is fixed between the brackets 51, 51, and elongated guide holes 58 of a slider 55 are arranged in front and rear in both vertical plate portions.
The slider 55 has a substantially Japanese-shaped cross section disposed outside the rail 57, and includes a front pin 59 and a rear pin 56 which are inserted in front and rear guide slots 58, 58 at the front and rear of the vertical plate portion. One end of the slider 55 and the intermittent gear 2 is rotatably supported at one end by the link pin 16 at the end of the slider 55, and the other end of the link pin 17 is mounted on the upper surface of the intermittent gear ring 4.
Are connected by a link member 10 shown in FIG.

The operation of the operation mechanism 5 will be described with reference to FIG.
When the grip lever 54 is gripped and the operation lever 50 is raised,
The slider 55 moves rightward and pulls the link member 10. As a result, the intermittent gear 2 rotates, the four tooth portions 41 mesh with the four gear ring plates 45, and the four pulleys 3 simultaneously wind the four wires Y.

At the time of this meshing, the teeth 4
When the tooth 6 and the tooth 41 of the intermittent gear 2 interfere with each other, the intermittent gear ring 4 is slightly moved in the radial direction or the circumferential direction by the operation of the fine movement mechanism 6, and the meshing is smoothly performed. The fine movement mechanism 6
It may be provided between the wheel 33 of the take-up pulley 3 and the gear ring plate 45, and this has a greater effect of smoothing the engagement, but has the disadvantage of increasing the number of parts and increasing the cost.

As shown in FIG. 8C, the lever plates 53, 5
At the position where 3 is rotated 120 degrees, the right end of the link plate is lower than the left end, and constitutes the lock mechanism 5R. By the operation of the lock mechanism 5R, the intermittent gear 2 is maintained at the fastening position, the four pulleys 3 are fixed, and the tension of the wire Y is maintained. The fastening is released by grasping the grip 54 and rotating the operation lever 50 rightward in the figure.

FIG. 10 shows an intermittent gear 7 according to another embodiment.
Is shown. The intermittent gear 7 includes a wheel 23 having a flange portion 25 provided around the outer periphery of the circular can portion 24, and four gear pieces 71 attached to the surface of the flange portion 25 at equal intervals. One end of the gear piece 71 is rotatably attached to the flange 25 with a stepped pin 72, and the inside of the
4 is urged outward by a leaf spring 74 provided behind a recess 73 provided on the outer periphery of the fourth member 4. This configuration has the advantage of smooth engagement with the gear and the disadvantage of increasing the number of parts.

FIG. 11 shows an intermittent gear 7A according to still another embodiment. The intermittent gear 7A includes a wheel 23 having a flange portion 25 provided around the outer periphery of the circular can portion 24,
It consists of four gear pieces 76 attached at equal intervals to the surface of the flange 25. The gear piece 76 has a flange 2 at both ends.
5 is displaceably attached by stepped pins 77, 77,
It is urged outward by an elastic body 78 made of rubber or a leaf spring interposed between the outer periphery of the circular can portion 24 and the outer periphery. This configuration has the advantage of smooth engagement with the gear and the disadvantage of increasing the number of parts.

FIG. 12 shows an embodiment in which the operating mechanism 5 is attached to another member separated from the machine frame 1. Slider 55
And the link member 10 are connected by a wire 18.
As in this embodiment, by attaching the operating mechanism 5 to another member, remote operation becomes possible.

FIG. 13 is a diagram illustrating a load fastening device A according to the present invention.
Is applied to a truck bed. The load is a motorcycle 8, and an operation lever 50 is attached to a window 82 opened at a predetermined position on a floor 81 of a loading platform, and a wire Y is drawn out from four holes 83.

FIG. 14 is a sectional view of a load fastening device A according to the present invention.
Is applied to a pallet to be conveyed by a forklift or a crane. The load fastening device A is mounted in the double floor 85, the operation lever 50 is mounted on the window 87 opened in the floor 85, and the wire Y is inserted through the four holes 88.
Is drawn out.

In the above embodiment, the embodiment in which the number of the wires Y is four has been described. However, it is obvious that the present invention can be applied to a load fastening device for fastening a plurality of wires Y such as two or six wires. . Further, the operation mechanism may employ operation means other than the lever.

[Brief description of the drawings]

FIG. 1 is a plan sectional view of a fastening device for a load.

FIG. 2 is a front sectional view of a load fastening device.

FIG. 3 is a plan view of the loading device fastening device.

FIG. 4 is a front view of a load fastening device.

FIG. 5 is a front view, a side sectional view, and a bottom view of the intermittent gear.

FIG. 6 is an assembly diagram of a fine movement mechanism of the intermittent gear.

FIG. 7 is a plan view, a front sectional view, and a bottom view of the winding pulley.

FIG. 8 is a plan view, a front sectional view, and a plan sectional view of the operation mechanism.

FIG. 9 is an operation diagram of an operation mechanism.

FIG. 10 is a plan view of an intermittent gear according to another embodiment.

FIG. 11 is a plan view of an intermittent gear according to still another embodiment.

FIG. 12 is a plan cross-sectional view of a load fastening device according to another embodiment.

FIG. 13 is a perspective view of a load carrier of a vehicle using a fastening device for a load.

FIG. 14 is a perspective view showing a state in which a load fastening device is mounted on a pallet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine frame 11 Bottom plate 12 Cover plate 2 Intermittent gear 23 Wheel 3 Winding pulley 4 Intermittent gear ring plate 41 Tooth part 42 Tooth notch part 45 Gear ring plate 5 Operation mechanism (operation means) 5R Lock mechanism 50 Operation lever 6 Fine movement mechanism A Loading device fastening device Y wire

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F16H 37/06 F16H 37/06 Z

Claims (4)

[Claims] 1. A machine frame, a plurality of wire take-up pulleys rotatably mounted on the machine frame, urged in a wire winding direction by a spring, and provided with a gear, and a plurality of pulleys between the plurality of pulleys. And an intermittent gear formed with a tooth portion meshing with the gear of each of the pulleys and a toothless portion allowing the free rotation of each of the pulleys, and moving the intermittent gear in a wire winding direction of each of the pulleys. Operating means for rotating, a wire wound on each of the pulleys and pulling the load, and a lock mechanism for the intermittent gear or operating means, before the operation of the operating means, the intermittent gear Each pulley is rotatable with a toothless portion set at a position facing each of the gears. When the operating means is operated, the intermittent gear is rotated to rotate the tooth portion and the gear. When the pulley rotates and the wire is wound and tightened, the tension of the wire is maintained by the operation of the lock mechanism, and the intermittent gear rotates in the opposite direction by releasing the lock mechanism. Moving, the meshing between the tooth portion and each gear is released,
Each of the pulleys is rotatable. 2. The load fastening device according to claim 1, wherein the intermittent gear includes a wheel, teeth that mesh with the gears of the pulleys, and toothless portions that allow free rotation of the pulleys. And an intermittent gear ring plate movably connected to the wheel, and a fine movement mechanism by an elastic member interposed between the wheel and the intermittent gear ring plate. apparatus. 3. The apparatus according to claim 1, wherein the teeth of the intermittent gear and the teeth of the gears of the respective pulleys are flat teeth. . 4. The load-carrying device according to claim 1, wherein the operation means is an operation lever, and the lock mechanism is provided on the operation lever. Fastening device.