KR20180061305A - Clamping device for mold release block - Google Patents

Abstract

The present invention provides a clamping device which can be reliably gripped without damaging the mold releasing block to be gripped without damaging the mold releasing block while holding the mold releasing block, and also applicable to new fixed mounting of the releasing block.
The clamping device 1 comprises a universal hanger 2 suspended by a crane 100, a supporting body 3 located below the universal hanger 2, and a lower supporting body 3 extending downward from the supporting body 3 A plurality of fitting arms 4 which are openably and closably provided on the outer periphery of the supporting body and are capable of fitting and holding the forming block B and a plurality of fitting arms 4 which are provided on the leading end side of the fitting arm 4 And a cushioning member (15) contacting the release block. The cushioning member 15 is provided in the accommodating frame so as to protrude from the end of the accommodating frame edge toward the release block B side And a contact pad 18 in which a reinforcing fiber member 19 is embedded.

Description

Clamping device for mold release block

TECHNICAL FIELD [0001] The present invention relates to a clamping device for gripping a release block when fixing or installing a deformed block used for a so-called wave (dispersion or disappearance of waves).

Conventionally, in addition to a block such as a rectangular parallelepiped or a cubic block for a revetment (protection of a river or a shore) and a sofa, a deformed concrete block such as a quadruple block called a product name of a tetrapod Have been used in structures such as breakwaters. These release blocks are typically constructed as a sofa boating structure by being stacked in sequence on a seabed or a mound, or appropriately disposed on the front surface of a breakwater or a revetment.

However, a large number of release blocks are not simply stackable. In order to prevent the release block from collapsing due to a hitting wave or the like, a plurality of release blocks adjacent to each other are fixed so as to be entangled with each other . When the release blocks are piled up, there is a posture, that is, an arrangement posture of the release block, in which the legs are entangled with each other. In this arrangement posture, the release block stored on the ground is hung and placed in water at a fixed installation position.

Further, in the case where the release block is pushed or moved due to deterioration, waves or the like with the lapse of time, demolition work for a fixed release block and a previous installation work are widely performed. In such an operation, a step of gripping the release block in water and moving it to a proper position is required.

[0005] In order to grip the release block in the ground or in the water, the three clamp arms are operated by opening and closing (opening and closing) by the oil pressure to clamp the release block, (Japanese Patent Laid-Open Publication No. H02-300092), Patent Document 2 (Japanese Utility Model Publication S63-136687) and Patent Document 3 (Japanese Patent Laid-Open Publication No. H06-286973) .

[0006] Japanese Patent Application Laid-Open No. H02-300092 Japanese utility model publication S63-136687 Japanese Patent Application Laid-Open No. H06-286973 Japanese Patent Laid-Open No. H10-279266 Japanese Patent Laid-Open Publication No. 2011-73863

However, since the release block is a heavy block having tens of tons and a maximum weight of 80 tons, and a reinforcing material such as reinforcing bars is not used therein, the portion supported by the fitting arm of the clamping device tends to be damaged There was a problem. Specifically, when the release block is inserted and supported by the narrow insertion arm of the clamp device, the weight of the block concentrates on the contact surface with the insertion arm, which causes the release block to be damaged or damaged there was. Due to the damage or breakage of such a mold release block, the clamping device is virtually reserved for the new and fixed installation of the mold release block.

[0008] For the above reasons, the apparatuses of Patent Document 1 and Patent Document 3 are designed to solve the problem of hanging a ring on a block fixed to the seabed or the like, and are provided with three fitting arms It is a demolition device which is used in the work of hanging the gripping device in the sea and grasping and removing the block.

[0009] On the other hand, a clamping device using a protective pad for preventing damage or slipping of a gripping object claw at a contact portion with a gripping object is known. As such a device, for example, in Patent Document 4 (Japanese Patent Laid-Open Publication No. H10-279266), a rubber plate is used as an anti-slip material on the inner surface side of a clamp, and in Patent Document 5 (Japanese Patent Laid-Open Publication No. 2011-73863) A non-slip pad is provided at the lower end of the grip claw, in which the surface of the uneven surface formed by the bolt is covered with rubber in order to avoid damage of the gripped object.

However, in the devices of Patent Documents 4 and 5, since the object to be gripped is a relatively lightweight material, it is possible to grasp a simple rubber plate or a pad having a structure in which rubber is coated on the surface thereof. However, There is a problem that sufficient slip prevention can not be ensured or the pad itself which is vulnerable to a shearing force is damaged.

Therefore, an object of the present invention is to solve the above problem, and it is possible to securely grasp the releasing block without damaging the releasing block without damaging the releasing block, And it is an object of the present invention to provide a clamp device which can be applied to a new fixed installation of a release block.

[0012] In order to solve the above-described technical problem, the present invention provides a clamping device for a mold release block having the following structure.

[0013] In the clamping device of the present invention,

A hanging member which hangs by a loading and unloading device, a supporting body located below the hanging member, and a lower body extending downward from the supporting body and being openable and closable (openable and closable) to the outer periphery of the supporting body And a cushioning member having a plurality of fitting arms capable of fitting and releasing the deforming block and a contact pad provided on a tip side of the fitting arm and contacting the deforming block when the fitting block is fitted,

The contact pad is provided such that a contact surface with the release block protrudes from the inner surface of the insertion support arm toward the release block and is in a direction along the surface at the attachment position.

[0014] Further, the present invention further includes a housing frame surrounding the periphery of the contact pad,

It is preferable that the contact pad is made of an elastic material in which a reinforcing fiber member is buried therein and is provided so as to protrude from the end edge of the receiving frame toward the mold releasing block. As the elastic material, besides the rubber materials such as natural rubber and synthetic rubber, elastomer resin and the like can be used.

[0015] Preferably, the contact pads are made of a metal rope in which metal wires are braided to each other as the reinforcing fiber member, and each of the metal ropes is embedded.

[0016] The metal rope may be arranged in a lattice shape with the metal ropes spaced at a predetermined interval. Further, it is preferable that each end face of the metal rope is disposed so as to be exposed on the surface of the contact pad.

[0017] The contact pad may be configured to laminate a fabric composed of a synthetic fiber material with a layer of the elastic material.

[0018] The storage frame may be formed in a ring shape fixed to the tip end portion of the fitting arm, and may be configured to define a storage area therein. Further, in the above configuration, the fitting arm may be provided with a mounting hole through which the buffer member can be fitted, and the buffer member may be attached to the mounting hole.

It is preferable that the fitting arm has an attachment hole capable of fitting the cushioning member into the tip end portion and surrounding the contact pad of the buffer member by the side wall, .

[0020] Further, in the above-described configuration, it may be provided in the attachment hole through an elastic member provided in the attachment hole.

[0021] The fitting arm is provided with an attachment hole capable of accommodating the cushioning member provided at the tip end portion thereof,

It is preferable that the buffer member is installed in the attachment hole through an elastic member provided on the storage frame.

[0022] According to the present invention, since the cushioning member is provided at the tip end portion of the fitting arm, the mold releasing block can be held without being damaged. Here, since the contact pad is provided so as to protrude from the inner surface of the fitting arm toward the mold block side and to be in the direction along the surface at the attachment position, when the contact surface contacts the mold release block, It does not come into contact with the deforming block to be damaged.

Further, since the contact pad is composed of an elastic material such as synthetic rubber, which is surrounded by the housing frame and has a reinforcing fiber member therein, the contact pad can be made thicker to hold the mold releasing block It is possible to suppress the damage and the like. On the other hand, even when the periphery is reinforced by the reinforcing fiber member embedded in the housing frame and is strong against shearing, There is a number.

As the reinforcing fiber member, a metal wire or a synthetic resin fiber can be suitably used. Particularly preferably, by exposing the end face of the metal rope to the surface side, it is possible to increase the friction with the release block, and the effect of slip prevention can be enhanced.

Therefore, even if the release block is sandwiched therebetween, it is possible to reduce the possibility of breakage or falling, and can be suitably used for fixing installation work of the release block.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram schematically showing the configuration of a crane device used together with a clamping device of a mold release block according to an embodiment of the present invention;
Fig. 2 is a view showing a configuration of a device body of the clamping device of the deformed block of Fig. 1;
Fig. 3 is a side view schematically showing a state in which the fitting arm of the clamping device of Fig. 2 is opened (opened). Fig.
Fig. 4 is a plan view schematically showing a configuration of the clamping device of Fig. 2;
Fig. 5 is a side view schematically showing the configuration of the distal end portion of the fitting arm of the clamping device of Fig. 2;
Fig. 6 is a front view schematically showing a configuration of a distal end portion of a fitting arm of the clamping device of Fig. 2;
Fig. 7 is a schematic view showing a configuration of a buffer member, wherein (a) is a view seen from the contact surface side, (b) is a side view, and Fig. 7 (c) is a cross-sectional view taken along a CC line.
8 is an enlarged view showing a configuration of a universal hanger used in the clamping device of Fig.
9 is a plan view showing a configuration of the universal hanger of Fig.
10 is a sectional view showing a configuration of the universal hanger of Fig.
11 is a side view schematically showing the configuration of the distal end portion of the fitting arm of the clamping device according to the second embodiment.
12 is a cross-sectional view schematically showing the configuration of a buffer member used in the clamping device according to the second embodiment.
Fig. 13 is a side view schematically showing the configuration of the distal end portion of the fitting arm of the clamping device according to the third embodiment. Fig.
14 is a cross-sectional view that schematically shows a configuration of a buffer member used in the clamping device according to the third embodiment.
Fig. 15 is a cross-sectional view schematically showing an example of a configuration in which a buffer member used in a clamping device is disposed so as to be movable forward and backward in an attachment hole.
16 is a cross-sectional view that schematically shows a modification of the configuration in which the buffer member used in the clamping device is disposed at the tip end of the fitting arm.

[0027] Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.

The clamping device 1 of the mold releasing block according to the present embodiment is used by hanging from a crane 101 as an example of a loading device installed on a barge or the like as shown in FIG. This barge line is used to hold a release block B (hereinafter simply abbreviated as a block) for a shore or a breakwater of a beach or a breakwater in a harbor or the like by hanging it with the clamp device 1, Perform installation.

The crane 101 is wound around a wire winding reel 103 and is wound around a main wire 104 that is taken out from a main wheel 104 at the tip of the crane 101. 102 to which the clamp device 1 is connected to suspend. The wire take-up reel 103 winds or unwinds the main wire 102 by the drive device 106. [ The hanging position of the clamping device 1 is determined by winding or unscrewing the main wire 102 and the depth position and the like of the clamping device 1 can be specified from the amount of releasing the main wire 102 and the like.

The crane is provided with a sub wire 102a configured to be able to operate independently of the main wire 102. A sub wheel 104a provided at the end of the crane is connected to a sub- . The auxiliary wire 102a is used for adjusting the tilting angle of the apparatus main body 1 to be described later and can be adjusted by changing the relative amount of the auxiliary wire 102a to the main wire 102, The inclination angle can be adjusted.

The operation of the main wire 102 and the auxiliary wire 102a is performed by operating the drive unit 106 by an unillustrated operation unit provided on a barge or the like.

The hydraulic hose 109 wound around the turn wheel 107 suspended from the middle portion of the crane is connected to the clamping device 1. The hydraulic hose 109 is wound around the hose reel 108 and released according to the hanging position of the clamping device 1 and is moved in accordance with the operation of the hydraulic pressure unit 110 to the hydraulic cylinder 7 ). In the present embodiment, as will be described later, three clamping devices 1 are provided with three hydraulic cylinders 7, and the hydraulic unit 110 for driving these clamping devices 1 operates the hydraulic cylinder 7 integrally, Each of the hydraulic cylinders may be operated independently, and the hydraulic unit 110 may be configured as three systems.

The hydraulic unit 110 is installed on a barge or the like and operates the hydraulic cylinder 7 of the clamping device 1 so as to open and close (open and close) the operation of the fitting arm 4 do. The configuration of the clamping device 1 will be described later.

FIGS. 2 to 4 are diagrams showing the configuration of the apparatus main body of the clamping device of the mold releasing block according to the present embodiment. 2, the apparatus main body 1 according to the present embodiment includes a universal hanger (free hanging fitting) 2 as an example of a hanging member connected to a crane, A fixed support body 3 and three fitting arms 4 installed along the outer periphery of the support body 3 for supporting and holding the block B to be hung.

The universal hanger 2 has a structure capable of arbitrarily changing the inclination angle and the swiveling angle with respect to the support body 3 located below the universal hanger 2. The mechanism for changing the tilt angle and turning of the universal hanger 2 will be described later.

The supporting body 3 is located below the universal hanger 2 and includes a top wall 12 and a side wall 12 extending over the entire periphery of the ceiling wall portion 12 at a lower end And a cap portion 10 having an opening at the lower side. And a bracket 5 for attaching the fitting arm 4 to the outer surface of the side wall 11 of the cap portion 10 is provided.

The cap portion 10 has a storage space 13 in which the region surrounded by the side wall inserts the leg portion 112 of the block B. [ 2, the leg portion 112 of the block B is inserted, and the leg portion 112 of the block B is engaged with the leg portion 112 of the block B by pivoting the fitting arm 4, It is preferable that the front end of the leg portion 112 is caught by the side wall 11 so that the block B does not fall when the block B is tilted while maintaining the state in which the block B is held.

Specifically, the length of the fitting arm 4, the diameter dimension of the cap portion 10, and the diameter of the side wall 11 (11) are determined depending on the size of the block B within the range in which the apparatus main body 1 can fit the apparatus main body 1. [ Can be determined. The storage space 13 may be configured so that not only the leg portion 112 of the block B, that is, the front end portion of the leg portion but also the entire leg portion is accommodated according to the size of the block B.

Each of the brackets 8a provided in the cylinder attaching portion 8 located above the support body 3 is provided with hydraulic cylinders 7 respectively. Is pivotally attached to the upper end of the fitting arm (4).

An accumulator (not shown) for each of the hydraulic cylinders 7 and the like is provided in the intermediate portion 9 provided between the cylinder attaching portion 8 and the cap portion 10 of the support body 3. [ .

As shown in FIG. 4, the fitting arm 4 is provided with a pivot 6 disposed at an intermediate portion of the bracket 5 provided at intervals of 120 degrees along the outer periphery of the supporting body 3 And the lower portion of the fitting arm 4 below the pivot is provided so as to extend downward from the supporting body 3. [ Each of the fitting arms 4 is connected at its upper end with a hydraulic cylinder 7 and opens and closes the lower part as the hydraulic cylinder 7 expands and shrinks.

The front end portion 14 of the fitting arm 4 is bent inward so as to be able to support the block B from the lower side and as shown in FIGS. 5 and 6, the inner surface 14a of the front end portion, Three cushioning members 15 of different sizes are provided on the respective fitting arms 4 so as to protrude from the inner surface 14a. The cushioning member 15 is provided with a contact pad 16 having an elastically deformable contact surface 16 in order to contact the surface of the block and to prevent damage to the block surface by the interposing arm when the block B is inserted and held. (18). The cushioning member 15 is disposed so that the contact surface 16 of the contact pad 18 is in a direction generally along the surface 14a of the tip end portion of the fitting arm 4. [

By providing a plurality of the buffer members 15 independent of the one fitting arm 4, each buffer member independently bends according to the surface shape of the block, so that the shape of the block can easily follow the shape of the block. A large contact area can be secured. Thereby, the load concentration on the block can be reduced, and the damage to the block or the buffer member 15 can be reduced.

[0044] Fig. 7 shows the structure of the buffer member. Although the cushioning member of Fig. 7 is the largest one provided on the upper side of the tip end of the fitting arm, the cushioning members 15 of different sizes also have a common basic structure. 7 (a) and 7 (b), the cushioning member 15 has a metal housing frame 17 which defines the outer shape and surrounds the periphery of the contact pad 18, And a contact pad 18 arranged to be filled in the inside of the contact pad 18.

As shown in FIG. 7C, the storage frame 17 is made of a ring-shaped metal having a storage frame bottom surface 17b and side walls 17s provided around the bottom surface 17b of the storage frame. In the present embodiment, stainless steel having a thickness of 16 mm is used for the housing frame 17, but the metal material and the thickness dimension to be used can be appropriately designed in accordance with the design specifications of the clamping device 1. [ The external dimensions of the housing frame may be appropriately determined according to the width of the distal end portion 14 of the fitting arm.

The contact pads 18 provided on the inside of the housing frame are reinforced by a metal rope 19 as an example of an elastic material as a resilient material and arranged so as to protrude from the upper end of the side wall of the housing frame 17. [ In the present embodiment, the amount of protrusion from the upper end of the housing frame 17 to the contact surface 16 is 20 mm, but the present invention is not limited thereto. The contact pad 16 It is sufficient that the surface of the block does not come into contact with the accommodating frame 17.

The contact pads 18 are arranged in a lattice pattern at predetermined intervals in a state in which the metal ropes 19 are set up from the bottom surface of the bottomed container metal fitting 21, And a filler 20 which is a synthetic rubber.

The metal fitting 21 has an outer shape that can be fitted into the inner space of the housing frame 17 and is partitioned by a reinforcing wall 21a provided at the central portion in the present embodiment.

The cross section of the metal rope 19 is exposed to the contact surface 16 of the buffer member 15 and comes into contact with the surface of the block when the block B is held. The ratio of the cross section of the metal rope 19 to the entire contact surface is preferably about 30 to 70%.

[0050] In this embodiment, a stainless steel rope is used as the metal rope 19 from the viewpoint of preventing corrosion in the sea. In this embodiment, a rope having a diameter of 10 mm is used, but the present invention is not limited to this, and it can be appropriately selected according to the specifications of the clamping device. As described later, in order to ensure adequate elastic deformation in the thickness direction, a fine wire used for the metal rope 19 is used, and the twisted structure is 7 x 37 or 7 x 19 . However, the present invention is not limited to this, and can be appropriately selected depending on the size of the buffer member 15, the weight of the block B, and the like.

As described above, the universal hanger 2 is configured to be able to change the inclination angle and the turning angle of the clamping device 1. Hereinafter, the configuration of this universal hanger will be described.

8 to 10 are enlarged views showing the configuration of a universal hanger of a clamping device. In these drawings, a three-dimensional coordinate axis is defined in the drawing for clarifying the inclined axis and the pivot axis. Hereinafter, directions of the inclination angle and the turning angle by the universal hanger will be described with reference to these coordinate axes.

The universal hanger 2 includes a hanging metal fitting 30 connected to the main wire 102 of the crane 101, a joint 31 connected to the hanging metal spheres 30, And a swivel device 32 connected to the motor 31. The hanging metal ball 30 is formed in a ring shape to be connected to the main wire 102 at an upper portion and connected to the upper side of the joint 31 by a bolt 33 extending in the Y axis direction. Thereby, as shown by the arrow 93 in Fig. 10, the hanging metal spheres 30 are rotatable about the Y axis.

As shown in FIGS. 9 and 10, the joint 31 has a U-shaped cross section whose lower side is opened, and the upper side is connected to the hanging metal ball 30. On the upper surface of the joint 31, a rib 34 for connecting to the hanging metal ball 30 is provided along the X direction, and a hanging metal ball 30 is connected so as to sandwich the rib 34 therebetween .

The swivel device 32 is fixed to the leg portion 35 of the joint 31 by a connecting shaft 36 extending along the X axis direction. 31 in the X-axis direction.

The swivel device 32 supports the support shaft 3a located at the upper end of the support body 3 so as to be pivotable about the Z axis. The swivel device 32 is formed in a ring shape and has a cylindrical collar 39 into which a connecting shaft is inserted and a through hole 37 extending in the Z axis direction is formed at the center. The support shaft 3a is inserted into the through hole 37 and the support shaft 3a is supported by the connection shaft 36. [ Two thrust bearings 38 are provided on the connecting shaft 36 so as to sandwich the connecting shaft 36 from above and below and engage with the collar 39 inserted from the outside into the connecting shaft 36. A bearing 39a is provided above and below the thrust bearing via a spacer 39d and a collar 39 and a split collar 39b are connected to the outer ring and the inner ring of the bearing 39a. The split collar 39b is engaged with a ring-shaped groove provided at the upper end of the support shaft 3a to prevent the support shaft 3a from coming off. Upper and lower portions of the collar 39 are provided with pressing plates 39c for preventing the bearings 39a from falling off.

As a power source for rotating the support shaft 3a, a swing motor 40 is provided in the swivel device 32. [ A driving gear 40a is provided on the rotating shaft of the swing motor 40 and driven by the driving chain 40c wound on the driving gear 40b provided on the supporting shaft 3a, (3a) turns.

2, the apparatus main body 1 according to the present embodiment has a state in which the leg portion 112 is not inserted in the storage space 13, that is, Falling can be prevented even when the block B is held in the same direction as the leg portion of the block B is directed downward. 2, the leg portion 112 of the block B is not inserted into the accommodating space 13, the root portion 111 of the leg portion of the block B contacts the side wall 11 of the cap portion 10 Even if the block B is tilted when the block B is suspended, the tilting of the block is limited by contacting the lower end of the side wall 11 extending in a suspended state downward . Thereby, the falling of the block B can be prevented.

That is, when the leg portion 112 of the block faces upward, the leg portion 112 of the block is inserted into the storage space 13, It is possible to prevent the blocks held in all directions from falling down by gripping the block so that the root portion of the leg portion approaches the lower end of the side wall 11. [

When the clamp device 1 of the block according to the present embodiment having the above-described configuration is used to suspend the block B, the clamp device 1 is attached to the main wire 102 of the crane installed on the barge or the like, And detects the position of the apparatus main body 1 and the leg portion 112 of the block B from the amount of releasing the display device and the main wire 102. Then, So as to enter the storage space 13. The universal hanger is turned so that the fitting arms 4 provided at intervals of 120 degrees are positioned between the landing legs of the block so as to adjust the turning angle of the fitting arm 4. [

When the block is placed in an inclined state rather than in the vertical direction and it is difficult to insert the tip of the leg portion 112 into the accommodating space 13 of the cap portion, The angle of the clamping device 1 can be adjusted by the clamping device 2. When adjusting the angle, the auxiliary wire 102a is connected to any one of the tilting hanger 22 provided on each of the fitting arms 4, and the amount of unlocking the auxiliary wire 102a is manipulated .

When the front end of the leg portion 112 enters the storage space 13, the position is changed while maintaining the orientation of the apparatus main body 1 as it is, and the leg portion 112 is moved to the inside of the storage space 13 . In this state, the hydraulic cylinder is operated to pivot the fitting arm 4 to hold the block B in place. At this time, since the tip end of the fitting arm 4 is bent so as to follow the outer shape of the leg portion 111 of the block B, the leg of the leg portion 112 inserted into the accommodating space 13 The contact surface 16 of the cushioning member 15 comes into contact with the surface of the block B so that the contact surface 16 of the cushioning member 15 contacts the surface of the block B ).

In this state, when the main wire 102 is wound up and the apparatus main body 1 is pulled up, the engagement force of the cushioning member 15 The contact pads 18 are deformed in the thickness direction to alleviate damage to the surface of the block B. As described above, since the contact pad 18 is configured such that the end face of the metal rope 19 is exposed to the contact surface 16 in a state of standing in the thickness direction, the individual wire of the metal rope is exposed on the surface of the block B Thereby preventing the block B from slipping. Since the contact pads 18 are accommodated in the housing frame 17 to ensure a sufficient thickness dimension and are surrounded by the side walls 17s of the housing frame 17, And breakage due to the shear force in the direction along the surface of the contact pad 18 is suppressed.

When the block B is suspended, the block B may be inclined depending on the fitting position of the fitting arm 4. The tip end of the leg portion 112 is brought into contact with the inside of the side wall so that the block B is inserted into the fitting arm 4 and the cap portion 10, So that the block B is prevented from falling out of the apparatus main body 1. [0050] As shown in Fig. Further, since the cushioning member 15 is in contact with and supported by the cushioning member 15, scratches, damage, and the like of the fitting arm due to the positional displacement of the block are suppressed.

(Second Embodiment) [0065]

11 is a partially enlarged view of the clamping device according to the second embodiment. The clamping device according to the present embodiment has the same configuration as that of the clamping device of the first embodiment except for the configuration of the cushioning member provided at the distal end portion of the fitting arm 4 and the attachment structure thereof. The difference will be explained mainly.

The clamping device according to the present embodiment has a mounting hole 42 for inserting the buffer member 41 into the tip end portion 14 of the fitting arm. The attaching hole 42 is formed to have a size such that the accommodating frame 43 of the buffer member 41 can be fitted and fitted into the attaching hole 42 through the elastic member 42b fixed to the bottom surface 42a Is fixed.

The elastic member 42b is made of an elastic material such as rubber and is positioned between the housing frame 43 and the bottom surface 42a of the attachment hole 42. [ The elastic member 42b deforms when a pressing force is applied to the cushioning member 41 in accordance with the contact with the block B and allows the cushioning member 41 to move into the mounting hole 42, Thereby preventing an excessive moment load from being applied to the block (B).

In the buffer member 41, a contact pad 44 made of synthetic rubber or the like is protruded from the upper end of the storage frame 43 in a bottomed container-like storage frame 43, as in the first embodiment . Since the cushioning member 41 according to the present embodiment is provided so as to be movable forward and backward in the attachment hole 42 as described above, the thickness dimension is larger than that of the cushioning member 41 used in the first embodiment.

The contact pads 44 used in the cushioning member 41 of the present embodiment adopt a configuration in which the cloths made of synthetic fibers are embedded in a laminated state as shown in FIG. Synthetic fibers can be widely used as long as they have high tensile strength and high elastic modulus capable of achieving the object of preventing breakage of the contact pads 44 against heavy materials such as organic synthetic fibers, metal fibers, and inorganic fibers. Aramid fiber, xylon (trade name), carbon fiber and the like can be suitably used. These synthetic fibers are made into a fabric state and laminated with a synthetic rubber adhesive (45) to form a contact pad (44).

The contact pad 44 constructed as described above can be prevented from being damaged in the surface direction by the synthetic fiber layer 46 while ensuring the elasticity in the thickness direction by the synthetic rubber adhesive 45 and the synthetic fiber layer 46 There is a number. Further, deformation in the direction along the surface is suppressed by the side wall of the housing frame 43, and breakage due to the shear force in the direction along the surface of the contact pad 44 is suppressed. The contact pad 44 is pushed and pressed against the block B by the fitting force of the fitting arm at the time of clamping and the shape imitates the block so that the contact area increases and the surface pressure decreases, .

(Third Embodiment) [0071]

Fig. 13 is a partially enlarged view of the clamping device according to the third embodiment. Since the clamping device according to the present embodiment has a configuration common to the clamping device according to the second embodiment except for the configuration of the buffering member provided at the distal end portion of the fitting arm 4, .

The clamping device according to the present embodiment has a mounting hole 48 for inserting the buffer member 47 into the tip end portion 14 of the fitting arm. The attachment hole 48 is of a size that allows the cushioning member 47 to be fitted thereto and is attached to the attachment hole 48 through an elastic member 48b made of an elastic material fixed to the bottom surface 48a, Respectively.

The elastic member 48b is made of an elastic material and is positioned between the buffer member 47 and the bottom surface 48a of the attachment hole 48. [ The elastic member is deformed when a pressing force is applied to the cushioning member 47 in accordance with the contact with the block B and the cushioning member 47 is allowed to move into the attachment hole 48, To prevent an excessive momentary load from being applied.

The cushioning member 41 is provided with an attachment pad 49 which is formed in substantially the same shape as the opening of the attachment hole 48 and a contact pad 50 composed of synthetic rubber or the like located on the upper surface of the attachment pad 49. [ . The cushioning member 47 according to the present embodiment can be moved back and forth in the attachment hole 48 as described above and is attached so that only the contact pad 50 protrudes from the opening of the attachment hole 48 as described above.

As shown in FIG. 14, the contact pad 50 used in the buffer member 47 of the present embodiment is arranged in a lattice shape in a state in which the metal rope 51 is placed on the upper surface of the mounting table 49 And filling the space between the metal ropes 51 with a filler 52 which is a synthetic rubber. The cross section of the metal rope 51 is exposed to the contact surface 53 of the contact pad 50 and comes into contact with the surface of the block when the block B is supported. The ratio of the cross section of the metal rope 51 to the entire contact surface is preferably about 30 to 70%.

Since the buffer member 47 constructed as described above functions as a housing frame in which the side wall 48s around the attachment hole 48 surrounds the buffer member 47, deformation in the shear direction is suppressed Breakage due to the shear force in the direction along the surface of the contact pad 18 is suppressed. The contact pad 50 is deformed in the thickness direction by the fitting force for supporting the weight of the block B while the elastic modulus in the thickness direction is secured by the filler 52 which is a synthetic rubber, Lt; / RTI > Further, since the contact pad 50 is configured such that the end face of the metal rope 51 is exposed to the contact face 53 in a state of standing in the thickness direction, the individual wire rods of the metal rope are surely attached to the surface of the block B Thereby preventing slippage of the block (B).

As described above, according to the clamping device according to the present embodiment, since the buffer member is provided at the tip end portion of the fitting arm, the clamp can be held without damaging the block. In addition, since the cushioning member has a contact pad made of rubber and a reinforcing fiber member for reinforcing the contact pad embedded in the inside of the housing frame for defining the external shape, the cushioning member is strong against the front end, .

Since the fitting arm can arbitrarily change the inclination angle and the turning angle by the universal hanger, it can be suitably used for a fixed installation work in which the angle and direction of the block need to be specified.

[0079] The present invention is not limited to the above-described embodiments, but may be practiced in various other forms. The buffer member can be widely applied to a structure in which the contact pads reinforced with fibers are provided so as to protrude from the upper end of the storage frame inside the storage frame constituting the outer frame. It is sufficient that the contact pad can secure a strength to such an extent as to prevent breakage by shear force. The shape of the fiber embedded in the inside is not particularly limited to the above embodiment, If it is reinforced, it is widely applicable.

15, an example of an elastic member for attaching the buffer member 47 movably in the attachment hole so as to be movable forward and backward is not particularly limited as long as the bottom face 48a of the attachment hole 48 and the attachment of the buffer member 47 It is also possible to use a spring 55 positioned between the base 49 and the base 49.

16, in addition to the structure in which the contact pads are fitted in the recesses formed in the fitting arms, the contact pads of the contact pads are fitted to the tip ends of the fitting arms 4 The fixing member 60 may be fixed to the surface 14a of the contact pad 61 by fitting the fixing member 60 into the recess 62 formed in the contact pad 61. [ At this time, an adhesive or a bolt fastening or the like not shown may be used for fixing the two. The contact pads 61 are reinforced by the fixing member 60 inserted into the contact pads 61 so that the deformation in the front end direction is suppressed and the breakage due to the shear force in the direction along the surface of the contact pads 18 .

Further, for example, in each of the above embodiments, tetrapod (trade name) is used as a block, and the tip end of the leg portion is inserted and held in the cap portion. However, the block to be used is not particularly limited, A configuration for assisting gripping by the clamping device can be widely adopted depending on the shape of the block.

Furthermore, by appropriately combining any of the above-described embodiments, it is possible to exhibit the respective effects.

While the present invention has been fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it will be apparent to those skilled in the art that various changes and modifications can be made therein. Such variations and modifications are to be understood as included within the scope of the present invention as defined by the appended claims.

[0084] 1; Clamping device
2; Universal hangers
3; Support body
3a; Support shaft
4; The fitting arm
5; Bracket
6; Pivot
7; Hydraulic cylinder
8; Cylinder attaching portion
8a; Bracket
9; Middle part
10; Cap portion
11; Side wall
12; Ceiling surface
13; Storage space
14; Tip
15, 41, 47, 61; The buffer member
16, 53; Contact surface
17, 43; Storage frame
17b; Storage frame bottom
17s; The storage frame side wall
18, 44, 50; Contact pad
19, 51; Metal rope
20, 52; Filler
21; Attached metal sphere
21a; Reinforced wall
30; Hanging metal sphere
31; Joint
32; Swivel device
33; volt
34; live
35; Leg
36; Connection axis
37; Through hole
38; Thrust bearing
39; color
39a; bearing
39b; Split collar
39c; Presser plate
39d; Spacer
40; Swing motor
40a, 40b; Drive gear
40c; Drive chain
42, 48; Mounting hole
42a, 48a; Bottom surface
42b, 48b; Elastic member
48s; Side wall
45; Synthetic rubber adhesive
46; Synthetic fiber layer
49; Attachment
55; spring
60; Fixed member
62; Concave portion
100; Barge (barge)
101; crane
102; Main wire
102a; Secondary wire
103; Wire take-up reel
104; Main wheel
104a; The sub-wheel
106; Driving device
107; Turn Wheel
108; Hose reel
109; Hydraulic hose
110; Hydraulic unit
111; The part of the foot
112; Leg
B; Deforming block

Claims (11)

A hanging member which hangs by a loading and unloading device; a support body located below the hanging member; and a support body extending downward from the support body and being openably and closably installed on the outer periphery of the support body And a cushioning member provided on the tip side of the fitting arm and having a contact pad which contacts the mold block when the fitting block is fitted in the fitting block,
Wherein the contact pad is provided so that the contact surface with the release block protrudes from the inner surface of the insert arm to the release block side and is in a direction along the surface at the attachment position,
Clamping device. The method according to claim 1,
And a housing frame surrounding the periphery of the contact pad,
Wherein the contact pad is made of an elastic material in which a reinforcing fiber member is buried therein and is provided so as to protrude from the edge end of the housing frame toward the release block,
Clamping device. 3. The method of claim 2,
Wherein the contact pads are made of a metal rope in which metal wires are mutually twisted together as the reinforcing fiber member,
Clamping device. The method of claim 3,
Wherein the metal ropes are arranged in a lattice pattern at a predetermined interval,
Clamping device. The method according to claim 3 or 4,
Characterized in that the contact pads are arranged such that respective cross sections of the metal ropes are exposed on the surface of the contact pads.
Clamping device. The method according to claim 1,
Wherein the contact pad is configured to laminate a fabric composed of a synthetic fiber material with a layer of the elastic material,
Clamping device. The method according to claim 1,
Characterized in that the accommodating frame is fixed to a tip end portion of the fitting arm and is formed in a ring shape and defines a receiving area inside the receiving frame.
Clamping device. 8. The method of claim 7,
Wherein the fitting arm has an attachment hole through which the buffer member can be fitted at the tip end thereof,
Wherein the buffer member includes:
Clamping device. The method according to claim 1,
Wherein the fitting arm has an attachment hole capable of fitting the cushioning member into the tip end portion and surrounding the contact pad of the cushioning member by side walls,
Wherein the housing frame is formed as a side wall of the attachment hole,
Clamping device. 10. The method of claim 9,
Characterized in that the buffer member is provided in the attachment hole through an elastic member provided in the attachment hole,
Clamping device. The method according to claim 1,
Wherein the support body includes a downwardly extending hanging member extending downwardly provided in an area surrounded by the fitting arm and is defined by the downward hanging member in the region, And a housing space in which a front end of the housing is inserted,
Clamping device.

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