JP6974789B2 - Grating handle - Google Patents

Description

The present invention relates to a grating handle (hereinafter, simply referred to as "handle") used for removing a grating installed as a drain lid of a drainage channel of a road or a kitchen floor, or a drainage lid of a pool or a bathroom.

Grating is a type consisting of an end plate, a cross-section flat plate or I-shaped bearing bar whose ends are connected to the end plate and arranged in parallel at appropriate intervals, and a twist bar that is fixed in parallel with the end plate and orthogonal to the bearing bar. Most of them are made of steel, but there are various types such as a type in which the horizontal rail and the vertical rail form a grid at right angles, and the material is also made of steel or resin such as FRP.

Grating as described above may require removal from the drainage channel (groove) for cleaning the drainage channel (groove) or for other maintenance, and a handle to facilitate the removal. Grating is known.

1 and 2 show the handle 1 disclosed in Patent Document 1 below, and the grating is composed of a main bar 2 corresponding to a bearing bar and a pipe-shaped connecting member 3 connecting the main bars. 1 is fitted to the connecting member 3 and is rotatably supported by the shaft. The handle 1 has a configuration in which a fitting portion 5 to the connecting member 3 is juxtaposed on one side and an elongated square ring-shaped finger hook portion 6 is juxtaposed on the other side, and a first is provided on the upper portion of the outer edge on one side. A stopper 7 is provided between the fitting portion 5 and the finger hook portion 6, and a second stopper 8 is provided in the front-rear direction (left and right in FIG. 2) of FIG. 1 in the front-rear direction.

As shown in FIG. 2, the grating main bar 2 protrudes from the left and right sides of the upper end portion to form a substantially T-shaped cross section, and the handle 1 always has the first stopper 7 hitting the flange portion 2a from below. It is supported horizontally in a detented state so that it does not protrude onto the main bar (Fig. 1a). In this state, since the center of gravity of the handle 1 is located on the finger hook side and tends to rotate clockwise in FIG. 1a, the first stopper 7 is held in a state of being locked to the collar portion 2a, and the finger hook is held. Part 6 does not lift up naturally.

When removing the grating from the drainage channel (groove) using the handle 1, a fingertip is inserted between the main bars 2 and the finger hook portion 6 is hooked and lifted. Then, with one or more fingers inserted in the finger hook portion 6, the handle 1 is lifted while rotating in the counterclockwise direction indicated by the arrow in FIG. 1a. When the stopper 8 is locked to the flange portion 2a as shown in FIG. 1b and then the finger hook portion 6 is further lifted, the grating is lifted and removed from the drainage channel (groove).

Japanese Unexamined Patent Publication No. 2016-141988 (Fig. 6)

When the above-mentioned illustrated handle 1 is not used, the first stopper 7 is horizontally supported in a state of being in contact with the flange portion 2a of the main bar 2 from below, and the tip of the toe hits the handle 4 because it does not protrude onto the grating. It has the advantages that it does not stumble, it is easy to stack grating when packing, and the first and second stoppers 7 and 8 hit the side surface of the main bar to restrain the movement and it is difficult for the main bar to shake. Can only be used for grating having a flange portion 2a, and cannot be used for grating without a flange portion such as a main bar having a cross section I shape or a flat plate shape and without catching the stoppers 7 and 8.

It is an object of the present invention to provide a grating handle that can be attached regardless of the cross-sectional shape of the main bar, the horizontal rail, or the vertical rail constituting the grating.

The invention according to claim 1 is
(1) Grating having a bearing bar having both ends connected to the end plate and paralleled at appropriate intervals (2) An end plate and a bearing bar having both ends connected to the end plate and arranged in parallel at appropriate intervals. Grating having a connecting member for connecting adjacent bearing bars at appropriate positions (3) Grating in which a horizontal rail and a vertical rail are combined in a grid pattern The handle 11 used for the grating according to any one of (1) to (3) above. And
It is rotatably supported in the vertical direction by a shaft erected horizontally on the bearing bar of (1) or (2), or among the horizontal rails or vertical rails of the grazing of (3). It is rotatably supported in the vertical direction by a shaft erected horizontally on one side, and a pin 19 is projected laterally on one side, and the pin 19 is the pin 19 of the above (1) or (2). The handle 11 that attempts to rotate in one rotation direction around the shaft by its own weight by locking to the end plate or connecting member of the glazing, or by locking to the horizontal rail or vertical rail of the glazing in (3). The handle 11 is horizontally supported so as not to protrude upward from any of the glazings (1) to (3) , while the other grips the handle 11 and faces in the direction opposite to the rotation direction. It is characterized in that the handle 11 is rotated and provided with a grip portion 18 for lifting .

The invention according to claim 2 is characterized in that, in the invention according to claim 1, it is pivotally supported on the shaft so as to be rotatable.
The invention according to claim 3 is the invention according to claim 1, wherein the bunch hands 11, characterized in that the shaft is loosely fitted into the holes with a hole of larger diameter than the shaft.

The invention according to claim 4 is characterized in that, in the invention according to any one of claims 1 to 3 , the upper surface of the handle is anti-slip processed.

According to the invention of claim 1, the handle rotatably supported by the bearing bar or the rail of the horizontal rail or the rail of the vertical rail has a locking portion of the grating end plate of the above (1) and the above (2). By locking to the connecting portion of the grating of No. 1 or the horizontal rail or the vertical rail of the grating of (3) above, the rotation is stopped, and in this state, the grating can be horizontally supported so as not to protrude on the grating. Such an effect is to connect the connecting portion to the existing general grating of the above-mentioned (1) or (3) or the above-mentioned (1) grating regardless of the cross-sectional shape of the bearing bar of the grating or the horizontal rail or the vertical rail. It can be obtained only by rotatably attaching the handle of the above-mentioned configuration to the grating of the above-mentioned (2) of the configuration only added. The pin protruding to the side of the handle has a large protrusion amount, and the pin tip is sharpened according to the position of each grating or shaft, and the protrusion amount of the pin is adjusted to adjust the shape of the grating. Even if there is some variation in the shaft position, the handle can be supported horizontally.

According to the second aspect of the present invention, the handle turns in a certain locus, the movement is restrained in the non-rotating state, and the supporting state is stabilized.

According to the third aspect of the present invention, the handle can be moved upward within the range of the hole in which the shaft can be moved, and the amount of protrusion on the grating is increased, so that the handle can be easily grasped and the workability at the time of removing the grating is improved. Get better.

According to the invention of claim 4 , in grating used for pools, bathrooms, etc., even if the sole of the bare foot touches the handle, it is hard to slip, and when the handle is gripped and lifted, anti-slip processing is performed. The operation of the part is easy, and the work of lifting the handle becomes easy.

The figure which shows the handle of the conventional example attached to the main bar of a grating. The left side view of the handle shown in FIG. 1a. The perspective view of the handle of this embodiment. FIG. 3 is a perspective view of grating to which the handle shown in FIG. 3 is attached. A front view of a handle that is loosely fitted and supported by a shaft in a space surrounded by horizontal and vertical rails that make up the grating. Front view when the handle is lifted. Perspective view of grating with the handle lifted. Front view of the handle supported on the shaft so that the handle can only rotate around the shaft. A front view showing a state in which the handle shown in FIG. 8 is lifted. A perspective view of a different type of grating than in FIG. 4 with a handle attached. An enlarged view of the handle shown in FIG. A perspective view of a different type of grating than in FIG. 4 with a handle attached. An enlarged view of the handle shown in FIG. A cross-sectional view in which a handle is attached to a grating in which a bearing bar forms a flat plate. A cross-sectional view in which a handle is attached to a grating in which a bearing bar has an I-shaped cross section. Sectional drawing which shows another mounting form of a handle.

Hereinafter, the grating handle according to the embodiment of the present invention will be described with reference to the drawings.
FIG. 3 is a perspective view of the handle 11, and FIG. 4 is a perspective view of the type of grating 12 to which the handle 11 shown in FIG. 3 is attached. The grating 12 is a metal such as galvanized steel, for example. Made of synthetic resin such as FRP or FRP, it is composed of horizontal rails 13 and vertical rails 14 to form a grid, and the handle 11 is plate-shaped and fits in the space surrounded by the horizontal rails 13 and vertical rails 14 of the grating 12. It is supported so that it can be tilted as described later.

As shown in FIG. 3, the handle 11 is formed in a concave portion 15 by cutting the central portion of the lower surface, and a round hole 16 is formed in one side portion (left side in FIG. 3) of both side portions of the concave portion 15. The liner 17 is tightly fitted and fixed in the round hole 16. The other side portion sandwiching the concave groove 15 is a grip portion 18 to be gripped with a fingertip. In the illustrated example, the liner 17 has a side end surface flush with the handle 11, but the liner 17 may be projected laterally from the handle 11 so as to be in contact with the cross rail 13. This prevents lateral displacement in which the handle 11 moves toward the cross rail.

The handle 11 has a shape in which the cross-sectional shape of the upper end portion gradually expands upward, and the wide upper end surface is formed by a concave central portion, and is above the concave portion and one side portion on the round hole side. The end face is subjected to uneven processing 20 to prevent slipping, making it difficult to slip when operating by pressing the upper end surface of the handle 11 with a fingertip. The reason why the upper end surface of the handle 11 is widened as described above is to make it easier to operate with the fingertips.

The handle 11 is also provided with a pin 19 projecting laterally at the lower end of the side surface of one side portion on the round hole side. Like the grating 12, the handle 11 is made of metal or synthetic resin, and may be made of the same material as the grating 12, or may be made of a different material. However, when the handle 11 is made of synthetic resin, the liner 17 is preferable. Is made of a material known as a wear resistant and durable liner. The pin 19 is also made of a metal or synthetic resin of the same or different quality as the handle 11, but can also be made of rubber.

In FIG. 5, the liner 17 is rotatably supported by being loosely fitted to a shaft 21 which is horizontally erected between adjacent cross rails 13 of the grating 12 shown in FIG. 4 and has a diameter smaller than the inner diameter of the liner 17. The handle 11 is shown, and although the grip portion 18 tries to hang down forward due to the weight of the handle 11 by the shaft 21, the pin 19 hits the vertical rail 14 and is locked to prevent the handle 11. As a result, the handle 11 is supported and restrained at two points, the shaft 21 and the pin 19. In this restrained state, the upper end surface of the handle 11 is maintained horizontally so as not to protrude above the grating 12. Therefore, the pin 19 is formed to be long, and the protrusion amount of the pin 19 is adjusted by scraping the pin tip or cutting a necessary amount. Due to this adjustment, there are variations in manufacturing of the shaft 21 and the vertical rail 14 due to the grating 12, and even if the distance between the shaft 21 and the vertical rail 14 slightly changes from the design value, the levelness of the upper end surface of the handle is maintained and the grating 12 It can be prevented from protruding upward. When the pin 19 is made of soft synthetic resin or rubber, the distance between the shaft 21 and the vertical rail 14 is slightly different from the design value, and even if there is an error, the error can be absorbed. That is, even if the handle 11 slightly protrudes from the upper surface of the grating 12, it can be pushed into the grating by stepping on the handle 12.

When removing the grating 12 installed in the drainage channel (groove) (not shown), the fingertip is pressed against the non-slip end surface of the handle 11 shown in FIG. 5 so as to be pushed toward the axis 21 in the direction of the arrow. It is done by. As a result, the handle 11 rotates clockwise with the support point with the shaft 21 as a fulcrum, and the grip portion 18 is lifted forward. The grip portion 18 that is lifted and protrudes from the grating 12 is gripped, the grip portion 18 is gripped within the range of the hole 16 in which the shaft 21 is loosely fitted, and the upper end of the inclined surface on the hole side hits the vertical rail 14 to prevent rotation. Lift up (Fig. 6). In this state, as shown in FIG. 7, the grip portion 18 protruding from the grating 12 is grasped, the grating 12 is lifted, and the grating 12 is removed from a drainage channel (groove) (not shown).

In the embodiment, the shaft 21 has a smaller diameter than the liner 17, and the handle 11 is supported by the shaft 21 being loosely fitted in the hole 16 and lifted slightly within the play range of the hole 16. However, the shaft may be fitted into the liner 17 without any play so that the handle is rotatably supported by the shaft.

8 and 9 show an example, in which the shaft 23 is formed to have a diameter suitable for fitting with the liner 17, and the handle 11 rotates without any play in the shaft 23 while being fitted to the liner 17. Only possible shaft support. Also in this embodiment, the grating is lifted and removed in the same manner as in the above embodiment.

In the above-illustrated embodiment, the handle 11 is provided only at one place of the grating 12, but may be provided at a plurality of places. If the grating is made of synthetic resin or is small and lightweight, the handle 11 does not hinder the lifting of the grating 12 even in one place, but if it is a heavy object, it can be lifted by both hands or by a plurality of people. As described above, it is desirable to provide the handles 11 at a plurality of places.

In the above embodiment, the grating 12 is of the type shown in (3) above, which has a grid pattern composed of a horizontal rail 13 and a vertical rail 14, but the end plate and both ends are connected to the end plate. However, the handle 11 can also be attached to the type of (1) or (2) having bearing bars arranged in parallel at regular intervals in the same manner as in the embodiment.

FIG. 10 shows an end plate 31, a bearing bar 32 having both ends connected to the end plate and parallel to each other at regular intervals, and a bearing bar 32 parallel to the end plate 31 and connected to the bearing bar 32 orthogonally to the bearing bar 32. For example, in a general grating 34 having a rod-shaped connecting member (hereinafter referred to as a twist bar) 33 such as a twist bar, and a twist bar 33 added to the type shown in (1) above. In the space 35 surrounded by the adjacent bearing bars 32 at both ends on the end plate side and the end plate 31 and the twist bar 33, the handle 11 having the above configuration is attached to the pin-shaped shaft 36 as in the embodiment shown in FIG. An example is shown in which a large amount of play is supported and attached (FIG. 11). In the illustrated example, one of the pair of handles 11 is raised and protrudes from the grating 34, and the other protrudes from the grating 34. It is in a state of being housed in the space 35 in a normal form.

In the present embodiment, the end plate 31 functions as a rotation stopper for the handle 11 as in the vertical rail 14 in the embodiment.

FIG. 12 shows the grating 34 shown in FIG. 10 which is adjacent to the grating 34 of the type shown in (2) above, which is provided with a connecting plate 41 as a connecting member for connecting the bearing bars 32 adjacent to each other at appropriate positions between the bearing bars. A state in which the handle 11 that fits in the space 42 surrounded by the bearing bar 32, the twist bar 33, and the connecting plate 41 has a large amount of play in the pin-shaped shaft 36 having a small diameter, as in the embodiment shown in FIG. In this embodiment, the connecting plate 41 functions as a rotation stopper of the handle 11 like the vertical rail 14 or the end plate 31 of the embodiment. (See FIG. 13).

In the grating 34 shown in FIGS. 10 and 12, a pair of handles 11 are provided on both sides, but when the grating 34 is made of synthetic resin or is small and lightweight, it is shown in FIGS. 4, 7, and 10. Similar to the gratings 12 and 34, the handle 11 may be provided in only one place.

In the grating 34 shown in FIGS. 10 and 12, the bearing bar 32 may have a flat cross-section as shown in FIG. 14, or may have a cross-section I shape as shown in FIG. In addition, it may have a T-shaped cross section as shown in Patent Document 1, and unlike the handle 1 shown in Patent Document 1, the handle 11 described above may have any cross-sectional shape grating of the bearing bar 32. Can be applied.

Incidentally, FIG. 14 shows the side surface of the handle 11 corresponding to FIG. 8, and the handle 11 is pivotally supported only by rotation on a large-diameter shaft 23 connecting the flat plate-shaped bearing bar 44.

In FIG. 15, the handle 11 is rotatably supported on a large-diameter shaft 23 connecting a bearing bar 45 having an I-shaped cross section.

As shown in FIG. 16, the shaft 23 can also be configured by a bolt 46 in which a screw portion formed only at the tip portion is screwed into the bearing bar 44. In FIG. 16, between the bearing bars wider, for grating lightweight between the bearing bars, rods 47 of rectangular cross section are interleaved with the bearing bar 44, similar to the bearing bar 44, the both ends an end plate It is connected. The rotation stop of the handle 11 is performed by the end plate 31 as in the grating 34 shown in FIG. 10, or by the connecting plate 31 as in the grating 34 shown in FIG.

11 ・ ・ Bearing handles 12, 34 ・ ・ Grating 13 ・ ・ Horizontal rail 14 ・ ・ Vertical rail 15 ・ ・ Concave part 16 ・ ・ Hole 17 ・ ・ Liner 18 ・ ・ Grip part 19 ・ ・ Pins 21, 23, 36 ・・ Shaft 31 ・ ・ End plate 32, 44, 45 ・ ・ Bearing bar 33 ・ ・ Twist bar 35, 42 ・ ・ Space 41 ・ ・ Connecting plate 47 ・ ・ Rod

Claims (4)

(1) Grating having a bearing bar having both ends connected to the end plate and paralleled at appropriate intervals (2) An end plate and a bearing bar having both ends connected to the end plate and arranged in parallel at appropriate intervals. Grating having a connecting member for connecting adjacent bearing bars at appropriate positions (3) Grating in which a horizontal rail and a vertical rail are combined in a grid pattern The handle 11 used for the grating according to any one of (1) to (3) above. And
It is rotatably supported in the vertical direction by a shaft erected horizontally on the bearing bar of (1) or (2), or among the grating horizontal rails or vertical rails of (3). It is rotatably supported in the vertical direction by a shaft erected horizontally on one side, and a pin 19 is projected laterally on one side, and the pin 19 is the pin 19 of the above (1) or (2). The handle 11 that attempts to rotate in one rotation direction around the shaft by its own weight by locking to the end plate or connecting member of the grating, or by locking to the horizontal rail or vertical rail of the grating of (3). The handle 11 is horizontally supported so as not to protrude upward from any of the gratings (1) to (3) , while the other grips the handle 11 and faces in the direction opposite to the rotation direction. A grating handle comprising a grip portion 18 for rotating and lifting the handle 11. The grating handle according to claim 1, wherein the handle is pivotally supported on the shaft so as to be rotatable only. The bunch hand 11 grating for handle according to claim 1, wherein the loosely fitted axis in the hole with a hole of larger diameter than the shaft. The handle 11 is either grating material for handle according to claim of claims 1 to 3, characterized in that non-slip upper surface machining is performed.

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