JP2011002009A - Chuck device of belt for binding load - Google Patents

Abstract

PROBLEM TO BE SOLVED: To relate to a chuck device of a belt for binding a load to firmly fix an extra large size carried object on a carriage by using the belt for binding the load so as not to oscillate it when carrying the extra large size object such as an extra large size tire by a carrier.SOLUTION: The belt B for binding the load is chucked powerfully by chuck surface 7, 8 of chuck shoes 5, 6 which are detachably attached to a stationary side chuck portion 2 and a movable side chuck portion 4. In particular, since the chuck surfaces 7, 8 of both the chuck shoes 5, 6 are flatly formed by stainless thermal spraying layers 9, 10, the chuck device is configured to make it possible to effectively apply even a chuck force on plane-like chuck surfaces 7, 8 by hardness characteristic and friction characteristic of the stainless thermal spraying layers 9, 10 and at the same time to make it possible to securely chuck the belt B for binding the load on the plane-like chuck surfaces 7, 8 in removal prevention state by exerting an effective slip prevention function.

Description

  The present invention relates to a load-clamping belt that is firmly fixed to a bed using a load-carrying belt so as not to shake the vehicle to carry a super-large size transported object such as a super-large tire with a transport vehicle. The present invention relates to a chuck device.

  Although the present invention is different from the present invention in the technical field, for example, the structure of a well-known gripper used for electric wire maintenance shown in Patent Document 1 corresponding to the international classification H02G1 / 00 is used. Thus, the present invention proposes a chuck device for a load-clamping belt.

  As shown in Patent Document 1, the work for fixing the super large-sized transported object to the loading platform by using the load-carrying belt is performed by using a well-known wire feeder and gripper to wire the part to be maintained. The method of grasping in a tension state is used almost as it is.

  In other words, the super large transported part is connected to the side wall of the loading platform in a tensioned state as much as possible by the operator's manual operation by a belt for tightening the load. If the object to be transported is subjected to severe vibration or impact during transportation simply by connecting it to the state with a belt for tightening, rolling of the object to be transported or unexpectedly cannot be avoided. Therefore, it is necessary to increase the tension of the loading belt to such an extent that the object to be transported does not shake.

  In this case, a known wire drawing device whose example is shown in Patent Document 1 is arranged in parallel with an appropriate portion of the belt for tightening, and both end portions of the wire drawing device are respectively connected using a known wire drawing device. Gripping the load-carrying belt, operate the wire tensioner in this state to increase the tension of the load-clamping belt, and load the load-carrying object to the extent that the carried object can withstand severe vibrations and shocks during transportation. It is conceivable to firmly tighten the load with a belt for tightening.

JP 2008-306797 A

  As described above, it can be considered that the gripping belt having a conventionally well-known structure as shown in Patent Document 1 can be operated to apply tension to the load-clamping belt. The wire is formed in a concave groove having a substantially U-shaped cross section so that its gripping surface matches the cross section of the electric wire, and in addition, serrated irregularities orthogonal to the concave groove to prevent the electric wire from slipping. The surface is formed along the longitudinal direction of the concave groove.

  On the other hand, the belt for tightening is a so-called flat belt, and the material is mostly made of a hard synthetic resin such as polypropylene. Therefore, it is difficult to hold the belt in the concave groove of a conventionally known gripper. The serrated uneven surface formed in the concave groove is likely to damage the flat belt for clamping.

  The present invention utilizes the structure of a well-known gripping device, and proposes a chucking device for a loading belt in which the gripping surface, ie, the chuck surface, is effectively adapted to the chuck of the loading belt. It is intended to do.

  Means for solving the above problems will be described with reference numerals in the embodiments described later. A chuck device for a cargo tightening belt according to a first aspect of the present invention includes a chuck main body 1 having a fixed side chuck portion 2. An actuating member 3 that is rotatably connected to the chuck body 1 and is given a turning force in one direction by a pulling means P, and the fixed side chuck is rotated in one direction by the actuating member 3 A movable side chuck portion 4 that is displaced in a direction approaching the portion 2 and chucks one end portion of the loading belt B together with the fixed side chuck portion 2, and faces the fixed side chuck portion 2. A fixed chuck shoe 5 and a movable chuck shoe 6, which are made of different members, are detachably attached to the opposing surfaces of the movable chuck portion 4. With opposing surfaces to each other with Kushu 6 forms a chucking surface 7 and 8, is also the chuck surface 7 and 8, characterized by comprising formed in a planar shape by a stainless sprayed layer 9,10.

  According to a second aspect of the present invention, there is provided a chuck device for a load-clamping belt, wherein the fixed-side chuck shoe 5 includes a chuck piece portion 5a on which a stainless sprayed layer 9 is formed and side pieces projecting upward from both ends thereof. It consists of a block made of iron or steel with an upwardly U-shaped cross section composed of portions 5b and 5c, and both side portions 5b and 5c of the fixed chuck shoe 5 are connected to the left and right side walls 2a and 2b of the fixed chuck 2 And the fixed side chuck shoe 5 is detachably attached to the fixed side chuck portion 2 with a bolt 11.

  According to a third aspect of the present invention, the movable side chuck shoe 6 includes a chuck piece portion 6a on which the stainless sprayed layer 10 is formed and a side piece projecting downward from both ends thereof. It consists of a block made of iron or steel having a downwardly U-shaped cross section composed of portions 6b and 6c, and both side pieces 6b and 6c of the movable side chuck shoe 6 are connected to the left and right side wall portions 4a and 4b of the movable side chuck portion 4, respectively. And the movable side chuck shoe 6 is detachably attached to the movable side chuck portion 4 by a bolt 12.

  The chuck device for a load-clamping belt according to a fourth aspect of the present invention is the chuck device according to any one of the first to third aspects, wherein the chuck surfaces 7, 8 comprising the stainless sprayed layers 9, 10 are formed on a rough surface for friction. It consists of a structure as described in.

  The effect of the invention by the above solution will be described with reference numerals of the embodiments described later. According to the invention according to claim 1, the chuck main body 1 having the fixed side chuck portion 2, and the chuck main body 1 An actuating member 3 that is rotatably connected and is given a turning force in one direction by the pulling means P, and a direction in which the actuating member 3 comes close to the fixed-side chuck portion 2 by turning in one direction. And the movable side chuck portion 4 that chucks one end portion of the load-clamping belt B together with the fixed side chuck portion 2, so that both chuck portions 2 are proportional to the pulling force of the pulling means P. 4, a large chucking force is applied, whereby the load-clamping belt is fixed by the chuck surfaces 7 and 8 of the fixed and movable chuck shoes 5 and 6 attached to the chuck portions 2 and 4. So that is strongly chuck. In particular, the chuck surfaces 7 and 8 of the chuck shoes 5 and 6 are formed by the stainless sprayed layers 9 and 10 in a flat shape instead of the concave groove shape, so that the flatness depends on the hardness characteristics and friction characteristics of the stainless sprayed layers 9 and 10. The uniform chucking force can be effectively applied to the chuck surfaces 7 and 8, and the anti-slip function is exhibited without damaging the packing belt B, so that the packing belt B is flat. The chuck surfaces 7 and 8 can be surely chucked in a retaining state.

  In addition, according to the present invention, stainless steel is employed as a thermal spray material for the thermal spray layer. Thermal spray materials include ceramics and nickel-chromium alloys, but these materials are hard, but have a drawback that they are poor in toughness and easily chipped. On the other hand, it is the main reason that stainless steel has the advantage that it has high toughness and is inexpensive compared to other thermal spray materials.

  Furthermore, since the fixed side chuck shoe 5 and the movable side chuck shoe 6 are detachably attached to the fixed side chuck portion 2 and the movable side chuck portion 4, stainless steel can be obtained by frequent load tightening work of the load tightening belt B. When the chuck surfaces 7 and 8 made of the sprayed layers 9 and 10 are worn and the sprayed layers 9 and 10 are peeled off, the fixed side and movable side chuck shoes 5 and 6 equipped with the new stainless sprayed layers 9 and 10 are attached. By simply replacing it, it can be used stably over a long period of time.

  According to the second aspect of the present invention, the fixed side chuck shoe 5 includes the chuck piece portion 5a on which the stainless sprayed layer 9 is formed and the side piece portions 5b and 5c protruding upward from both ends thereof. Since the cross-section is an upwardly U-shaped iron or steel block, the stationary chuck shoe 5 itself can be made of an inexpensive iron or steel material, and the manufacturing cost of the chuck shoe 5 should be reduced as much as possible. Can do. Further, the both side pieces 5b, 5c of the fixed side chuck shoe 5 are fitted along the left and right side wall portions 2a, 2b of the fixed side and movable side chuck part 2 so that the fixed side chuck shoe 5 is fixed to the fixed side chuck. Since the bolts 11 are detachably attached to the portion 2, the side pieces 5 b and 5 c of the fixed side chuck shoe 5 cause the reaction force in the tension direction due to the loading belt B to be fixed to the left and right side wall portions 2 a of the fixed side chuck portion 2. 2b can be stably received by the fixed chuck shoe 5, even if there is a risk that the bolt 11 will loosen unexpectedly and fall off the fixed chuck part 2 at least. During the work of tightening the belt B, the fixed side chuck shoe 5 does not fall off the fixed side chuck portion 2 due to the tension action.

  According to a third aspect of the invention, the movable chuck shoe 6 comprises the chuck piece 6a on which the stainless sprayed layer 10 is formed and the side pieces 6b and 6c projecting downward from both ends thereof. Since the block is made of an iron or steel block having a downwardly U-shaped cross section, the movable side chuck shoe 6 itself can use an inexpensive iron or steel material, and the manufacturing cost of the movable side chuck shoe 6 can be reduced as much as possible. be able to. Further, the both side pieces 6b and 6c of the movable side chuck shoe 6 are fitted along the left and right side wall portions 4a and 4b of the movable side chuck portion 4 so that the movable side chuck shoes 5 and 6 are moved to the movable side chuck portion. Since the bolts 12 are detachably attached to the bolts 2 and 4, both side pieces 6 b and 6 c of the movable chuck shoe 6 are caused by the reaction force in the tension direction by the belt B for tightening the left and right side walls 4 a of the movable chuck 4. , 4b can be stably received by the movable side chuck shoe 6, even if the bolt 12 may loosen unexpectedly and fall off from the movable side chuck part 4, even if there is at least a load. During the tightening operation of the fastening belt B, the movable side chuck shoe 6 does not fall off the movable side chuck part 4 due to the tension action.

  According to the invention of claim 4, the flat chuck surfaces 7, 8 made of the stainless sprayed layers 9, 10 are formed on a rough surface for friction. The frictional force of the rough surface provides a more effective anti-slip function, and the load-carrying belt B can be securely chucked to the flat chuck surfaces 7 and 8 in a powerful retaining state.

It is a front view of one embodiment of the present invention. It is the same side view. It is the principal part longitudinal section front view. It is a principal part vertical side view. It is a perspective view of the principal part.

  Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5. FIG. 1 shows a chuck for chucking one end of a load-carrying belt B according to an embodiment of the present invention. FIG. 2 is a front view showing the apparatus. The chuck device includes a chuck main body 1 in which a mounting piece 13 and a support piece 14 are integrally extended downward from left and right ends of the fixed-side chuck portion 2, respectively. An actuating lever member 3 which is an actuating member having a triangular shape, the first corner portion 3a of the triangle being pivotally connected to the lower end portion of the mounting piece 13 via the pivot 15; The movable side chuck portion 4 is rotatably attached to the second corner portion 3b of the member 3 via a connecting pin 16, and one end portion (lower end portion in the figure) is connected to the operating lever member 3 via a support shaft 17. Is connected to the third corner 3c of the upper portion of the first corner 3c so as to be rotatable. It constituted a coupling member 18 inserted into the insertion hole 14a of the support piece 14 as principal components.

  At the other end portion (right end portion in the figure) of the connecting member 18, a connecting portion (connecting hole 19) to the pulling means P described later is provided. In addition, a torsion coil spring 20 is provided between the mounting piece 13 of the chuck body 1 and the operating lever member 3 so that the operating lever member 3 rotates counterclockwise in FIG. It is arranged in a state of being urged. That is, both ends of the torsion coil spring 20 are locked to the mounting pieces 13 and locking holes (not shown) of the operating lever member 3 in a state where the pivot 15 is inserted and held in the coil portion of the torsion coil spring 20. . A torsion coil spring 21 having a spring force weaker than that of the torsion coil spring 20 is provided between the movable side chuck part 4 and the operating lever member 3 on the side wall of the movable side chuck part 4 and the side wall of the operating lever member 3. The movable chuck 4 is arranged to be urged to rotate counterclockwise around the connecting pin 16 so that both ends of the spring 21 are in contact with each other.

  As shown in FIGS. 3 to 5, the fixed side chuck portion 2 is made of an upward U-shaped iron material or steel material composed of a chuck piece portion 5 a and side piece portions 5 b and 5 c projecting upward at both ends. The fixed-side chuck shoe 5 made of a block body is fitted so that both side pieces 5b and 5c are along the left and right side wall portions 2a and 2b of the fixed-side chuck portion 2, and the chuck piece portion 5a is attached thereto. It is detachably attached to the fixed side chuck portion 2 by a bolt 11 screwed into the provided bolt hole 11a.

  As shown in FIGS. 3 to 5, the movable side chuck portion 4 includes a chuck piece 6 a and a downward U-shaped iron comprising side pieces 6 b and 6 c projecting downward at both ends. The movable side chuck shoe 6 made of a steel block is fitted so that both side pieces 6b, 6c are along the left and right side wall parts 4a, 4b of the movable side chuck part 4, and the chuck piece 6a is It is detachably attached to the movable side chuck portion 4 by a bolt 12 screwed into a bolt hole 12a provided therein.

  As a feature of the present invention, the opposed surfaces of the fixed chuck shoe 5 and the movable chuck shoe 6 form chuck surfaces 7 and 8, and the chuck surfaces 7 and 8 are formed of SUS304 or Stainless steel sprayed layers 9 and 10 having a thickness of several microns to several microns are formed in a planar shape by spraying using a standard stainless steel material such as SUS303. The chuck surfaces 7 and 8 formed of the stainless sprayed layers 9 and 10 are formed on the rough surfaces 7a and 8a for friction that form a fine uneven surface without finishing.

  In this way, the chuck surfaces 7 and 8 of the chuck pieces 5a and 6a of the chuck shoes 5 and 6 are formed by the stainless sprayed layers 9 and 10, utilizing the characteristics of stainless steel, and having excellent hardness characteristics. It focuses on excellent toughness, corrosion resistance, and porous frictional properties formed by laminating particles of thermal spray coating.

  The work for fixing the super large-sized transported object to the loading platform using the loading belt will be described. First, as described at the beginning, the super large transported portion is first placed on the side wall of the loading platform by the loading belt. The known tensioner is connected to the tensioned state as much as possible by manual work, and then a known wire tensioner, an example of which is shown in Patent Document 1, is arranged in parallel with an appropriate portion of the load-carrying belt. The gripping belt is gripped by the both ends of the belt using the chuck device according to the present invention, and in this state, the tensioning force of the belt for tightening is increased by operating the wire tensioner, and the object to be transported is transported. In order to withstand strong vibrations and shocks, the object to be transported is firmly fastened to the bed by a belt for fastening.

  Specifically, a pair of chuck devices according to the present invention are arranged such that one of the chuck devices has the connecting member 18 positioned on the right side in the drawing as shown in FIG. 1 is arranged so that the connecting member 18 is located on the left side opposite to the left and right, and a tensioner as shown in Patent Document 1, which is a well-known pulling means P, is disposed between both chuck devices. Both ends of the container (pull means P) are connected to the connecting portions 18 (connecting holes 19) of the connecting member 18 located on the right side of one chuck device of the both chuck devices and the connecting member 18 located on the left side of the other chuck device. ).

  After that, as shown in FIGS. 1 to 4, the temporary tightening belt B is temporarily placed between the fixed chuck shoe 5 and the movable chuck shoe 6 of each chuck device in advance as described above. When the operating lever member 3 is released after being inserted, the movable chuck shoe 6 is fixed so as to rotate counterclockwise around the connecting pin 16 by the rotational biasing force of the torsion coil 21. The load clamping belt B is loosely chucked close to the side chuck shoe 5 side, and the operating lever member 3 further moves the movable side chuck shoe 6 to the fixed side chuck shoe 5 by the rotational biasing force of the torsion coil spring 20. When the belt B is moved closer and chucks the packing belt B more strongly, the packing belt B is chucked by both chuck devices at a predetermined distance in the longitudinal direction. When a tensioner P, which is a well-known pulling means P interposed between the chuck devices, is actuated to apply a pulling force P, the coupling member 18 and an operation coupled to the support shaft 17 in proportion thereto. As shown in FIGS. 1 and 2, the movable side chuck shoe 6 is strongly biased in the direction of the arrow Q via the lever member 3 so that the urging force is applied to the fixed side chuck shoe 5 side. By increasing the chucking force to the load-carrying belt B, the load-carrying belt B can be surely chucked by the chuck shoes 5 and 6, and the pulling means P is further operated, so that the gap between the chuck devices is increased. The loading belt B is in a relaxed state, and accordingly, the loading belt B between the one chuck device and the extra large transported object, and the loading operation between the other chuck device and the loading platform. The belt B, it is possible to arrow Pa direction large tension force is loaded, to tie-down strongly in the carrier ultra large object transported article.

  At that time, the chuck surfaces 7 and 8 that are the opposed surfaces of the fixed chuck shoe 5 and the movable chuck shoe 6 facing the fixed chuck shoe 5 are formed in a flat shape by the stainless sprayed layers 9 and 10. A uniform chucking force can be effectively applied to the flat chuck surfaces 7 and 8 by the hardness characteristics and friction characteristics of the stainless sprayed layers 9 and 10, and it is effective without damaging the belt B for tightening. The anti-slip function is exhibited, and the load-clamping belt B can be reliably chucked on the flat chuck surfaces 7 and 8 in a state of being prevented from coming off.

  Furthermore, since the fixed side chuck shoe 5 and the movable side chuck shoe 6 are detachably attached to the fixed side chuck portion 2 and the movable side chuck portion 4, stainless steel can be obtained by frequent load tightening work of the load tightening belt B. When the chuck surfaces 7 and 8 made of the sprayed layers 9 and 10 are worn and the sprayed layers 9 and 10 are peeled off, the fixed side and movable side chuck shoes 5 and 6 equipped with the new stainless sprayed layers 9 and 10 are attached. By simply replacing it, it can be used stably over a long period of time. In addition, as a result of the experiment, the stainless steel sprayed layers 9 and 10 were peeled off by carrying out the loading operation about 3000 times, so that the loading operation was hindered. At this time, both chuck shoes 5 and 6 were replaced.

B Belt P for tensioning Pulling means (known tensioner)
1 Chuck body 2 Fixed side chuck part 2a Fixed side chuck part side wall part 2b Fixed side chuck part side wall part 3 Actuating member (actuating lever member)
4 Movable side chuck portion 4a Movable side chuck portion side wall portion 4b Movable side chuck portion side wall portion 5 Fixed side chuck shoe 5a Fixed side chuck shoe chuck piece portion 5b Fixed side chuck shoe side piece portion 5c Fixed side chuck shoe Side piece 6 Movable side chuck shoe 6a Movable side chuck shoe chuck piece 6b Movable side chuck shoe side piece 6c Movable side chuck shoe side piece 7 Fixed side chuck shoe chuck surface 8 Movable side chuck shoe chuck Surface 9 Stainless steel sprayed layer 10 on the fixed chuck shoe side chuck surface Stainless steel sprayed layer 11 on the movable side chuck shoe side chuck surface 11 Bolt 12 for fixing the fixed side chuck shoe to the fixed side chuck portion 12 Movable movable chuck shoe Bolt for bolting to the side chuck

Claims (4)

A chuck body having a fixed chuck portion;
An actuating member to which a turning force in one direction is applied by a pulling means rotatably connected to the chuck body;
A movable side chuck part that is displaced in a direction approaching the fixed side chuck part by rotation in one direction of the operating member and chucks one end part of the load-clamping belt together with the fixed side chuck part;
A fixed side chuck shoe and a movable side chuck shoe made of different members are detachably attached to the mutually facing surfaces of the fixed side chuck portion and the movable side chuck portion opposite thereto,
A chucking device for a load-clamping belt in which the opposing surfaces of the fixed-side chuck shoe and the movable-side chuck shoe form a chuck surface, and the chuck surface is formed flat by a stainless sprayed layer.   The fixed side chuck shoe comprises a block body made of an iron material or a steel material having an upward U-shaped cross section composed of a chuck piece portion on which a stainless spray layer is formed and side piece portions projecting upward from both ends thereof, 2. The fixed side chuck shoe is detachably attached to the fixed side chuck portion with bolts by fitting both side pieces of the fixed side chuck shoe along the left and right side wall portions of the fixed side chuck portion. The chucking device for the belt for tightening described in 1.   The movable side chuck shoe comprises a block body made of an iron material or a steel material having a downwardly U-shaped cross section composed of a chuck piece portion on which a stainless spray layer is formed and side piece portions projecting downward from both ends thereof, The both sides of the movable chuck shoe are fitted along the left and right side wall portions of the movable chuck portion, and the movable chuck shoe is detachably attached to the movable chuck portion with bolts. The chucking device for the belt for tightening described in 1.   The chuck device for a load-clamping belt according to any one of claims 1 to 3, wherein the chuck surface made of the stainless sprayed layer is formed on a rough surface for friction.

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