JP4790770B2 - Grating desorption device - Google Patents

Description

  The present invention relates to a grating detaching apparatus for detaching a grating provided in a side groove, for example.

  Because it is difficult for the workers to bend and remove the grating fitted in the drainage channel on the side of the road, the so-called side groove (U-shaped groove), one by one by hand. For example, a grating detaching apparatus (hereinafter referred to as a conventional example) disclosed in JP-A-10-60994 has been proposed.

  In this conventional example, as shown in FIG. 7, a hook member 51 that can be inserted into the gap of the lattice portion 4 of the grating 2, an arm member 52 to which a handle is attached, and a tip side of the arm member 52 are attached. The support leg 53 and a caster 54 provided on the support leg 53 are configured. Further, the hook member 51 of this conventional example is configured to be bent at a constant angle or to have a tip portion formed in a hook shape hang downward due to its own weight.

  When removing the grating 2 using this conventional example, first, after moving this conventional example to the side groove 1, the arm member 52 is tilted so that the handle is upward, and the hook member 51 is inserted into the gap of the lattice portion 4. After that, when the lattice portion 4 is held by the hook member 51 and then the handle is pushed downward, the leg portion 53 provided with the casters 54 becomes a lever fulcrum, and the hook member 51 holds the lattice portion 4. If the grating 2 is lifted and the conventional example is moved in this state, the grating 2 can be removed from the side groove 1. Therefore, it is not necessary for the operator to bend the heavy grating 2 with both hands and lift it with both hands, and it is possible to easily handle even a powerless one.

  Further, when sand or mud is accumulated in the gap between the grating 2 and the side groove 1 and solidified, the grating 2 may not be easily removed. As shown in FIG. 7, when the conventional example is actually used in such a case, since the grating 2 is lifted obliquely, there is a problem that the grating 2 does not separate from the side groove 1.

  Therefore, when sand or mud is accumulated between the edge of the grating 2 and the side groove 1 and solidifies, or when there is no dimensional allowance in the gap between the grating 2 and the side groove 1, this conventional example is used. Even if one end of the grating 2 is lifted and removed, the end of the grating 2 is not lifted because it abuts the middle of the wall of the side groove 1, and it is troublesome to remove the grating 2.

Japanese Patent Laid-Open No. 10-60994

  The present invention has been made in view of the above problems, and proposes a grating detaching device that can easily detach grating from a side groove even when sand or mud accumulates in the gap between the grating and the side groove and solidifies. is there.

  The gist of the present invention will be described with reference to the accompanying drawings.

  The front end portion is provided with a latch holding portion 5 and a grounding portion 8 that can be inserted into the gap of the lattice portion 4 of the grating 2 from the upper surface side and can latch and hold the lattice portion 4 from the lower surface side. A grating detaching device provided with a push-down operation unit 7 that lifts the grating 2 with the grid portion 4 locked and held by the lock holding portion 5 with the grounding portion 8 as a fulcrum by pushing down, An abutting portion 9 that abuts against the upper surface portion of the lattice portion 4 that is locked and held by the locking and holding portion 5 and is in a lifted state behind the locking and holding portion 5 to keep the grating 2 substantially horizontal. The present invention relates to a grating detaching apparatus characterized in that is provided.

  Further, in the grating attaching / detaching apparatus according to claim 1, the locking holding portion 5 is an L-shaped protrusion 21 protruding upward from the arm body 20, and is locked to the crosspiece 4 a of the lattice portion 4 from below. According to the present invention, there is provided a grating detaching apparatus.

  3. The grating attaching / detaching apparatus according to claim 2, wherein the contact portion 9 is a protrusion 11 provided closer to the base end than the L-shaped protrusion 21 on the arm body 20. The present invention relates to a grating detaching apparatus.

  The grating attaching / detaching device according to claim 1, wherein the contact portion 9 is attached to an attachment hole 13 provided in the arm body 20 by a fastening member 15. This relates to the grating desorption device.

  5. The grating detaching apparatus according to claim 4, wherein the mounting hole 13 has a long hole shape.

  6. A grating detaching apparatus according to claim 4, wherein a plurality of said mounting holes 13 are arranged in parallel in the length direction of said arm body 20. It is.

  The grating detaching apparatus according to any one of claims 2 to 6, wherein an upper surface or a lower surface of the arm body 20 is an inclined surface, and the arm body 20 has a tapered shape. It is related to.

  The grating detaching device according to any one of claims 1 to 7, wherein the grounding portion 8 is provided with a moving caster 16.

  Since the present invention is configured as described above, for example, it is a grating detaching device that can easily detach the grating even if sand or mud accumulates in the gap between the grating and the side groove and solidifies.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  In the present invention, for example, the latch holding portion 5 is inserted into the gap of the grating portion 4 of the grating 2 provided in the opening of the side groove 1, the lattice portion 4 is held by the latch holding portion 5, and the push-down operation portion 7 is inserted. Is pushed down, the grating 2 is held and lifted by the locking holding portion 5 with the grounding portion 8 as a fulcrum. At this time, the abutting portion 9 provided at a position rearward of the latch holding portion 5 abuts on the upper surface portion of the lattice portion 4 behind the latch holding portion 5, and the rear portion does not lift up from the latch holding portion 5. Therefore, the grating 2 is kept substantially horizontal, so that the grating 2 does not come into contact with the edge of the side groove 1 and is satisfactorily detached from the side groove 1. Similarly, the fitting of the grating 2 to the side groove 1 is performed well.

  Further, even after the grating 2 is detached from the side groove 1, the contact portion 9 is reliably kept in contact with the upper surface portion of the grating 2. When the abutting portion 9 does not exist, the latch holding portion 5 is not latched and held at the lattice portion 4 at the substantially central position of the grating 2, for example, the latch holding portion 5 is held at the grid portion 4 closer to the front of the grating 2. If locked, the leading end side of the grating 2 may hang down due to its own weight, and the locking holding portion 5 may come off from the lattice portion 4. No, it becomes a safer device.

  A specific embodiment of the present invention will be described with reference to the drawings.

  The present embodiment is a grating detaching device 3 for detaching a grating 2 which is a grid-like lid provided in the opening of the side groove 1.

  This will be specifically described below.

  As shown in FIG. 1, the grating detaching apparatus 3 according to the present embodiment has a round iron pipe at one end (base end portion) of one long round iron pipe (frame 6). A handle 18 formed by a U-shape is welded to provide a push-down operation portion 7, and a steel pipe having a short round shape is welded to the other end (tip portion) of the frame 6. A pair of iron arm bodies 20 are welded to both ends of the pipe, a locking holding portion 5 is provided at the distal end portion of each arm body 20, and a grounding portion 8 with a caster 16 for movement is provided at the base end portion of the arm body 20. Further, each of the pair of arm bodies 20 is provided with a contact portion 9. Reference numeral 19 denotes a reinforcing bar.

  In addition, although the grating removal | desorption apparatus 3 which concerns on a present Example is iron, it may be comprised with another material or may be combined with another material.

  More specifically, the latch holding portion 5 of the grating detaching device 3 is formed with a tapered tip so that it can be easily inserted into the gap of the lattice portion 4 from the upper surface side, and the lattice portion 4 is disposed on the lower surface. The latch holding portion 5 is provided with a protrusion 21 having an L-shape upward from the arm body 20 so that it can be latched and held from the side, and the latch 4 is held in a pair of left and right bars 4a of the lattice portion 4 of the grating 2. A pair of stop holding portions 5 are provided on the left and right sides.

  Further, a push-down operation part 7 is provided at the base end of the frame 6, and a pair of grounding parts 8 are provided on the frame 6, and the grating is held and held by the lock holding part 5 by pushing down the push-down operation part 7. When lifting 2, the grounding portion 8 is configured as a fulcrum.

  Furthermore, the upper surface portion of the grating 2 held by the latch holding portion 5 is supported on the lower surface side portion of the arm body 20 at the rear portion of each latch holding portion 5 so that the grating 2 is substantially horizontal. A pair of contact portions 9 to be held is provided, and a moving caster 16 is provided on the grounding portion 8 below the contact portion 9 on the lower side of the frame 6.

  Further, as shown in FIG. 2, the abutting portion 9 is composed of an attaching portion 10 to the arm body 20 and a projecting body 11 that is connected to the attaching portion 10 and supports the lifting operation of the grating 2. An insertion hole 12 through which a screw body serving as a fastening member 15 passes is provided in the attachment portion 10 of the contact portion 9, and an insertion hole 12 of the attachment portion 10 of the contact portion 9 is formed on the lower surface side portion of the arm body 20. A mounting hole 13 is provided, and a screw body as a fastening member 15 is inserted into the mounting hole 13 of the arm body 20 and the insertion hole 12 of the mounting part 10 of the abutting part 9, and the nut 14 is fastened. The contact portion 9 is configured to be fixed to the arm body 20.

  Furthermore, as shown in FIG. 2, the attachment hole 13 of the contact portion 9 provided in the arm body 20 is formed in a long hole shape. As a result, the attachment position of the contact portion 9 can be continuously moved along the elongated hole as necessary, and the attachment position of the contact portion 9 that supports the grating is set to the interval of the lattice portion 4. Since it can be set by freely moving to the corresponding position, the contact portion 9 can be fixed at an appropriate position.

  As described above, in this embodiment, the latch holding portion 5 at the tip of the arm body 20 has a tapered shape and an L-shape, and is not provided with a hook-like one on the outside. The L-shaped projecting body is not unnecessarily caught on the portion 4 and is easy to handle and has good workability.

  Note that the abutment portion 9 may be attached to the arm body 20 in another configuration. For example, as shown in FIG. 3, the attachment holes for the abutment portion 9 arranged in parallel in the length direction of the arm body 20. 13 may be provided with a plurality of round holes. In this case, the position of the abutting portion 9 can only be set in a jumping manner, but this increases the mounting strength of the abutting portion 9.

  Next, the operation of removing the grating 2 using the grating desorption device 3 according to this embodiment will be described with reference to FIGS. However, the mass distribution of the grating 2 is uniform, and in the explanatory diagrams of FIGS. 4 to 6, A is the position of the mass symmetry line where the mass distribution of the grating 2 is even and symmetrical on the left and right. First, the grating attaching / detaching device 3 is moved close to the side groove 1, and the push-down operation unit 7 is pushed up and held so as to hold the lattice unit 4 in front of the mass symmetry line A as shown in FIG. The portion 5 is inserted into the gap of the lattice portion 4 of the side groove 1, the lattice portion 4 is held by the locking holding portion 5, and the downward force is applied to the push-down operation portion 7 to lift the grating 2. . By this lifting, the state solidified by mud, sand or the like accumulated at the front edge of the grating 2 is broken, and the position of the mass symmetry line A is located in front of the latch holding portion 5. As shown in FIG. 4, the trailing edge of the grating 2 is slightly lifted. If force is continuously applied in this state, the front of the grating 2 hangs down and the rear part tends to lift up. However, as shown in FIG. As a result, the state solidified with mud and sand at the leading edge of the grating can be broken, and the grating 2 can be pulled out from the side groove 1. Since the leading edge and the trailing edge of the grating 2 can be lifted from the side groove 1 in this way, if the force is further applied downward to the push-down operation unit 7 in this state, the entire grating 2 is lifted as shown in FIG. Can be removed from the gutter.

  As described above, according to the grating desorbing device 3 of the present embodiment, even if sand or mud accumulates in the gap between the grating 2 and the side groove 1 and solidifies, it can be easily desorbed.

  Furthermore, the grating 2 can be moved by the moving caster 16 in a state in which the grating 2 is held by the latch holding portion 5 and the grating 2 is supported by the contact portion 9 and held substantially horizontally. As shown, the direction of the handle 18 provided in the push-down operation unit 7 is provided so as to face downward from the horizontal. In this way, not only when the grating detaching device 3 is moved, but also the operation position of the grating detaching device 3 can be lowered, so that it is easy to handle when moving up and down.

  As described above, according to the present embodiment, since the grating 2 can be pulled out from the side groove 1 in a substantially horizontal state by providing the abutting portion 9 behind the locking holding portion 5, the gap between the grating 2 and the side groove 1. Therefore, it is possible to provide a grating detaching apparatus with good operability, in which the grating 2 can be easily detached even when sand, mud or the like is accumulated and solidified or when the clearance between the grating 2 and the side groove 1 is small.

  Note that the present invention is not limited to the embodiments, and the specific configuration of each component can be designed as appropriate.

It is use condition explanatory drawing of a present Example. It is an example of attachment of the contact part which concerns on a present Example. It is another example of attachment of the contact part which concerns on a present Example. It is operation | movement explanatory drawing of a present Example. It is operation | movement explanatory drawing of a present Example. It is operation | movement explanatory drawing of a present Example. It is a use condition explanatory drawing of a prior art example.

Explanation of symbols

2 Grating 4 Lattice part 4a Crosspiece 5 Locking holding part 7 Push-down operation part 8 Grounding part 9 Contact part
11 Projection
13 Mounting hole
15 Fastening material
16 Transfer caster
20 arms
21 Projection

Claims (8)

  The front end portion is provided with a latch holding portion and a grounding portion that can be inserted into the gap of the grating portion of the grating from the upper surface side and can latch and hold the lattice portion from the lower surface side. A grating attaching / detaching device provided with a push-down operation unit that lifts the grating that holds and holds the lattice portion with the locking and holding portion with a grounding portion as a fulcrum, and in a rear part from the locking and holding portion, A grating attaching / detaching device, comprising: an abutting portion that abuts on an upper surface portion of the lattice portion that is latched and held by the latching holding portion to maintain the grating substantially horizontally.   2. The grating attaching / detaching device according to claim 1, wherein the locking holding portion is an L-shaped protrusion that protrudes upward from the arm body and is locked to the crosspiece of the lattice portion from below. A characteristic grating desorption device.   The grating attaching / detaching device according to claim 2, wherein the contact portion is a projecting body provided closer to a base end than the L-shaped projecting body as the arm body.   The grating attaching / detaching device according to claim 1, wherein the contact portion is attached to an attachment hole provided in the arm body by a fixing member.   5. The grating detaching apparatus according to claim 4, wherein the attachment hole has a long hole shape.   The grating attaching / detaching device according to claim 4, wherein a plurality of the mounting holes are arranged in parallel in a length direction of the arm body.   The grating attaching / detaching device according to claim 2, wherein an upper surface or a lower surface of the arm body is an inclined surface, and the arm body has a tapered shape.   8. The grating detaching apparatus according to claim 1, wherein a moving caster is provided in the grounding portion.

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