JP2006255824A - Underwater gripper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To an underwater gripper having a lightweight and compact structure capable of easily collecting a falling object under the water where normally a person's hand does not reach and it is difficult to visually confirm. <P>SOLUTION: The underwater gripper 1 is equipped with a cylindrical body part 10, a suspension member 11 suspending the body part 10, an internal lift body 15 vertically movably provided inside the body part 10, a traction member 16 elevating the internal lift body 15, and a plurality of claws 17 which are mounted to the internal lift body 15, and grips the falling object under the water approaching each other by the elastic deformation when it is stored in the body part 10 by elevating the internal lift body 15. Since the underwater gripper 1 separates the body part 10 from the suspension member 11 so as to match the length of the suspension member 11 with the depth of fall of the falling object, the falling object under the water can be easily collected. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

 The present invention relates to an underwater gripper for collecting falling objects in water.

When recovering an object that has fallen into a place that is normally out of reach of humans, such as a narrow and deep hole or deep water, a large-scale operation such as excavating the periphery or removing water may be required. However, such large-scale work is often difficult in terms of site conditions and costs. Therefore, conventionally, a simple gripping tool has been devised that opens and closes a gripping claw attached to the tip of a long body portion by hand operation in order to grip an object at a distant place (for example, a patent Reference 1).
Japanese Patent Laid-Open No. 2002-154075

  However, in the case of a gripping tool such as that disclosed in Patent Document 1, when collecting a fallen object or the like submerged in deep water, the main body must be made long in accordance with that, and the operability is deteriorated. there were. Further, since it is difficult to see the fallen object in deep water, it was difficult to collect it while visually confirming it.

  This invention is devised with respect to such a problem, and it aims at providing the holding tool for underwater which can collect | recover the fallen object in water easily with a lightweight and compact structure.

  In order to achieve the above object, Claim 1 of the present invention, in order to achieve the object, a cylindrical main body, a suspension member that suspends the main body, an internal elevating body that can be raised and lowered inside the main body, A pulling member that raises and lowers the internal elevating body, and a plurality of members that are attached to the internal elevating body and grip the fallen objects in the water by approaching each other by elastic deformation when the internal elevating body is raised and stored in the main body. And a book claw.

  According to the first aspect of the present invention, the main body is first suspended to the position of the fallen object using the suspension member. Next, when gripping the fallen object, the internal lifting body is pulled up by the pulling member. By this operation, the claws are housed in the main body, and the claws approach each other by elastic deformation and are closed, so that the fallen object can be gripped.

  Next, when collecting the fallen object, it is only necessary to lift the main body using the suspension member. If the hand that pulls up the pulling member is loosened after the collection, the internal lifting body descends due to the weight of the internal lifting body, so that the nail protrudes from the main body and returns to the open state by elastic return, so that the fallen object can be taken out from the nail. .

  In the present invention, since the main body and the suspension member are configured separately, the size of the main body does not change regardless of the fall depth of the fallen object, and only the length of the suspension member is adjusted. Any fallen object that falls to any depth can be recovered. As a result, a lightweight and compact configuration can be realized, and falling objects in the water can be easily recovered by a simple operation.

  A second aspect of the present invention is characterized in that, in the first aspect, a camera and / or a light is provided on a lower surface of the internal lifting body.

  According to the second aspect, it is possible to confirm on the water surface a fallen object that sinks in a deep place that is difficult to visually confirm from the water surface, and it is possible to easily collect the fallen object.

  A third aspect of the present invention is characterized in that, in the first and second aspects, a light is provided on the lower surface of the main body, and a rod member whose tip is a magnet is provided on the inner lift so as to be extendable and contractable. And

  According to the third aspect, it is possible to collect a small metal object that is difficult to grip with only the claws by attracting it to the bar member by the magnetic force of the bar member.

  A fourth aspect is characterized in that, in the first, second, and third aspects, the internal elevating body is provided with a suction pipe so as to be extendable and contractible.

  According to the fourth aspect, the fallen object can be easily collected by adsorbing the fallen object in the water that is floating in the water and is difficult to grasp with only the claws by the suction pipe.

  A fifth aspect of the present invention is characterized in that, in the first, second, third, and fourth aspects, the claw is provided with an elastic member that forcibly returns the claw to an open state.

  According to the fifth aspect, it is possible to prevent the elastic force of the claws from weakening and preventing the claws from protruding from the main body.

  As described above, according to the underwater gripping tool of the present invention, it is possible to easily collect a fallen object that has fallen into deep water or the like with a lightweight and compact configuration.

  Hereinafter, preferred embodiments of an underwater gripper according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a side cross-sectional view showing a basic configuration of an underwater gripper according to a first embodiment of the present invention.

  The underwater gripping tool 1 shown in FIG. 1 includes a main body 10, a suspension member 11, a weight 12, an internal lifting / lowering body 15, a pulling member 16, and a claw 17.

  The main body 10 is a cylindrical body made of a corrosion-resistant material such as stainless steel, and is provided with a lower limit stopper 18 at the lower part, an upper limit stopper 20 inside, and a cap 21 at the upper part.

  The cap 21 is provided with a plurality of suspension eye bolts 19 for fixing the suspension member 11 using a rope or metal wire. The underwater gripping tool 1 is suspended in water by a suspension member 11 having a sufficient length.

  A weight 12 for increasing the weight is detachably attached to the upper portion of the cap 21 when the underwater gripping tool 1 suspended underwater is not stable only by its own weight. The weight 12 is replaced with a load amount that meets conditions such as depth and water flow.

  The internal lifting body 15 is a cylindrical body having a diameter smaller than the inner diameter of the main body 10, which is manufactured from a corrosion-resistant material having a weight sufficient to lower the inside of the main body 10 by its own weight. A mechanism can be provided. The internal lifting body 15 has a claw 17 attached to the lower end for collecting falling objects in the water, and the inside of the main body 10 is lowered by operating the pulling member 16 having a sufficient length similar to that of the hanging member 11. It is moved up and down between the stopper 18 and the upper limit stopper 20.

  The claw 17 is formed by bending a plate material resistant to corrosion (for example, a stainless material having a thickness of about 1.2 mm and a width of about 15 mm). A plurality of claws 17 are attached to the lower end of the internal lifting body 15 so as to face each other. As the internal elevating body 15 is raised, each claw 17 is housed in the main body 10 while being in contact with the lower end of the main body 10 or the lower limit stopper 18. Grab the falling object.

  With these configurations, the underwater gripping tool 1 of the present invention can easily collect fallen objects that have fallen into deep water or the like with a lightweight and compact configuration.

  Next, the operation of the underwater gripping tool 1 according to the present embodiment will be described. When recovering a fallen object that has fallen into water, the main body 10 is first suspended to the position of the fallen object using the suspension member 11 shown in FIG.

  The underwater gripping tool 1 is brought close to a distance sufficient to grip the fallen object, and the internal lifting body 15 is pulled up by the pulling member 16. Thereby, the nail | claw 17 is accommodated in the main-body part 10, and since each nail | claw 17 approaches each other by elastic deformation and it will be in a closed state, it can hold | grip a fallen object.

  When it is confirmed that the fallen object has been gripped and collected, the main body 10 is lifted using the suspension member 11. If the hand that pulls up the pulling member 16 is loosened after the collection, the internal elevating body 15 descends due to the weight of the internal elevating body 15, so that the claw 17 protrudes from the main body 10 and returns to the open state by elastic return, so that it falls from the claw 17 You can take things out.

  As a result, the present invention has a light and compact configuration, and can easily recover falling objects in water with a simple operation.

  Next, a second embodiment of the underwater gripping tool 1 according to the present invention will be described. FIG. 2 is a side cross-sectional view and bottom view of the underwater gripping tool 1 having a camera in the internal lifting body, and FIG. It is.

  The undercarriage 30 of the underwater gripping tool 1 having this configuration includes a camera 31 at the center, and a plurality of lights 32 that irradiate the imaging range of the camera 31 are provided around the camera 31.

  The internal elevating body 30 can be moved up and down by a pulling member 33 that also serves as a cable for transmitting an image captured by the camera 31. A plurality of claws 17 are attached to the lower end of the internal elevating body 30, and each nail 17 is housed in the main body 10 as the internal elevating body 30 is lifted as shown in FIG. It will be in a state and will grasp the falling object in the water.

  Accordingly, the underwater gripping tool 1 of this configuration is a lightweight and compact configuration, and even with a fallen object that has fallen into deep water that is difficult to view, an image captured by the camera 31 is captured by a monitor installed on land. It can be easily collected while checking.

  Furthermore, the configuration of the third embodiment of the underwater gripping tool 1 according to the present invention will be described. FIG. 4 is a side sectional view of the underwater gripping tool 1 provided with a camera, a suction tube, and a rod member on the internal lifting body, and FIG. 5 shows a claw of the underwater gripping tool 1 provided with the camera, the suction tube, and the bar member. It is side surface sectional drawing which showed the closed state.

  A camera 31 is provided at the center of the inner lifting body 40 of the underwater gripping tool 1 of this configuration, and a suction tube 41 and a rod member 42 are provided around the camera. A plurality of lights 32 that illuminate the imaging range of the camera 31 are provided at the lower end of the main body 10.

  The suction pipe 41 is supported by a plurality of guide rollers 36 and is provided so as to be capable of extending in the direction of arrow A or contracting in the direction of arrow B by a driving means (not shown) sealed by a seal or manually. The suction pipe 41 sucks up water with a pump 37 installed on the water or in water, and adsorbs and fixes a fallen object that is difficult to float and hold in the water.

  The bar member 42 is provided with an electromagnet at the tip, and is supported by the guide roller 36 in the same manner as the suction tube 41, and is attached so as to extend in the arrow A direction or to contract in the arrow B direction. Since the tip of the bar member 42 is an electromagnet, it is magnetically attracted when energized, and collects small metal objects that are difficult to grip with the claws 17.

  A plurality of claws 17 are attached to the lower end of the internal elevating body 40, and as shown in FIG. 5, each nail 17 is housed in the main body portion 10 by raising the internal elevating body 40, and closes to each other by elastic deformation. So grip the falling objects in the water.

  The claws 17 are connected to each other by an elastic member 38. As shown in FIG. 6, the elastic member 38 is provided with a spring 35 in accordance with the position of the claw 17 on the outer periphery of the ring-shaped main body 34.

  According to this elastic member 38, when the claw 17 is housed in the main body 10 and protrudes from the main body 10 from the closed state, each claw 17 is forcibly expanded by the force of the spring 35. Thereby, even when the elastic return force of the nail | claw 17 is lost by long-term use, the nail | claw 17 will return to an open state reliably.

  Accordingly, the underwater gripping tool 1 of this configuration is a lightweight and compact configuration, and even a fallen object that has fallen into deep water that is difficult to view can be confirmed with an image, and it is difficult to catch a floating fallen object or catch it. Small metal objects can be easily recovered.

  Note that the underwater gripping tool 1 of this configuration may include any two or only one of the camera 31, the suction tube 41, and the bar member 42.

  Next, the operation of the underwater gripping tool 1 according to the present invention will be described. FIG. 7 is a diagram showing a recovery operation of falling objects that have fallen into water. The operator W is performing a recovery operation for the falling object D that has fallen into the large-sized water tank 2 with the underwater gripping tool 1 suspended by the suspension member 11.

  The underwater gripping tool 1 is moved by the suspending member 11, and the image captured by the camera 31 provided in the internal lifting body 40 shown in FIG. When the water depth is deep and dark and the image is not clear, the imaging range is illuminated by the light 32 shown in FIG.

  After finding the fallen object D, the claw 17 is moved closer to the fallen object D while confirming the position of the fallen object D on the monitor 39. When approaching to a position where the falling object D can be sufficiently grasped, the pulling member 33 is pulled, the internal lifting body 40 is pulled up, the claw 17 is closed, and the falling object is gripped.

  After confirming with the monitor 39 that the gripping is surely performed, the hanging member 11 is pulled and the underwater gripping tool 1 is pulled up from the water to recover the fallen object D. At this time, the pulling member 33 is also pulled up so that the internal elevating body 40 is raised so that the claw 17 is kept closed.

  When the falling object D floats in water and is difficult to grasp, the pump 37 sucks up water from the suction pipe 41 shown in FIG. 4 and adsorbs and collects the falling object D. Further, when the falling object D is a small metal, the falling object D is attracted and collected by the magnetic force of the electromagnet at the tip by energizing the rod member 42.

  As a result, the underwater gripping tool 1 of the present invention has a light and compact configuration and good workability, and even a fallen object that has fallen into deep water that is difficult to view can be confirmed with a clear image. In addition, it is possible to easily collect floating falling objects and small metal objects that are difficult to catch.

  As described above, according to the present invention, it is possible to easily recover a fallen object that has fallen into deep water that is difficult to confirm visually even if it is not reachable by human hands, with a lightweight and compact configuration.

  Although the underwater gripping tool of the present invention is for underwater use, it can also be used in an environment without water, such as an elongated hole.

Side surface sectional drawing showing the fundamental structure of the holding tool for water based on this invention. The side surface cross section and bottom view of the holding tool for water provided with the camera. Side cross-section and bottom view showing the nail of the underwater gripper with camera closed The side cross section of the holding tool for underwater provided with the camera, the suction pipe, and the rod member. The side surface cross section which showed the state by which the nail | claw of the holding tool for water provided with the camera, the suction pipe, and the rod member was closed. The block diagram of an elastic member. The figure showing collection work of the fallen object which fell in water.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Underwater holding tool, 2 ... Large water tank, 10 ... Main-body part, 11 ... Suspension member, 12 ... Weight, 15, 30, 40 ... Elevating body, 16, 33 ... Traction member, 17 ... Claw, 18 ... Lower limit stopper, 19 ... Eye bolt, 20 ... Upper limit stopper, 21 ... Cap, 31 ... Camera, 32 ... Light, 37 ... Pump, 38 ... Elastic member, 39 ... Monitor, 41 ... Suction tube, 42 ... Bar member, D ... Falling Things, W ... Worker

Claims (5)

A tubular body,
A suspension member for suspending the main body,
An internal lifting body provided so as to be movable up and down inside the main body,
A pulling member that raises and lowers the internal lifting body;
A plurality of claws that are attached to the internal lifting body and are moved closer to each other by elastic deformation to be held in the main body when the internal lifting body is lifted to hold the falling object in water. An underwater gripper.   The underwater gripping device according to claim 1, wherein a camera and / or a light is provided on a lower surface of the internal lifting body. A light is provided on the lower surface of the main body,
The underwater gripping device according to claim 1 or 2, wherein a rod member whose tip is a magnet is provided on the internal lifting body so as to be extendable and contractible.   The underwater gripping device according to any one of claims 1, 2, or 3, wherein a suction pipe is provided on the internal lifting body so as to be extendable and contractible.   5. The underwater grip according to claim 1, wherein an elastic member for forcibly returning the nail to an open state is attached to the nail. Ingredients.

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