JP4416041B2 - Chain - Google Patents

Description

  The present invention relates to a chain rod in which a plurality of chain rods are arranged in the vertical direction so that rainwater drained from the eaves can flow down along the chain rods.

  2. Description of the Related Art Conventionally, a chain rod that allows rainwater drained from an eave wall to flow down through a chain rod is known.

  As a conventional chain rod, for example, there is one in which ring-shaped chain rods are connected in a chain shape. This chain-shaped chain rod is configured by passing a ring-shaped chain rod body vertically so as to cross each other vertically.

  Moreover, the upper joint part which carried out the reverse U-shape on the upper and lower sides of the cylinder as a chain element, and the lower joint part which carried U-shape protruded, and the lower joint part which carried the U-shape on the upper and lower chain element bodies, Patent Document 1 and the like are known in which a chain rod is configured by passing through an inverted U-shaped upper connecting portion so as to cross and connecting up and down.

  The general downpipe has a cylindrical shape that prevents rainwater from flowing down, but the above-mentioned chain fence flows down the rainwater drained from the eaves along the chain element. By showing, it has the characteristic that it can be made into a quaint thing which is not in a cylindrical downspout.

However, any of the above-described conventional chains has only a function to show how rainwater flows down the chain body. For this reason, the “chain function” (the function of showing the flow down the chain body) has become a rut, and it is currently impossible to provide a chain with high commercial value. There is a strong desire to develop products that further enhance the “showing function” of the bag.
Japanese Utility Model Publication No. 5-7825

  The present invention has been invented in view of the above-described conventional problems, and has a function of rotating a chain element by flowing water of rainwater or wind power, thereby providing a new “show function” that is not found in conventional chain rods. In addition, when the chain element is rotated by the flowing water of rainwater, it can be smoothly discharged even if foreign matter such as dust, sand or sand enters the pivotal part of the chain element with the shaft. It is an object of the present invention to provide a chain that can be used.

  The present invention is a chain rod 2 in which a plurality of chain rod bodies 1 are arranged in the vertical direction. In the present invention, the chain element body 1 is rotatably attached to the shaft body 3, and the chain element body 1 is rotated for receiving the flowing water or wind power of rainwater and rotating the chain element body 1. In the shaft support portion where the wing portion 5 is provided and the chain element body 1 is rotatably attached to the shaft body 3, the inner surface of the hole 18 through which the shaft body 2 provided in the chain element body 1 is loosely inserted or the shaft body 3. A groove 7 extending in the vertical direction of the shaft support portion is provided on at least one of the outer surfaces of the shaft.

  By adopting such a configuration, the flowing hydropower or wind power of rainwater can be received by the rotary wing part 5 and the chain element 1 can be rotated around the shaft body 3. Thus, the chain rod body 1 rotates to provide the chain rod 2 having a new function that cannot be exhibited by the conventional chain rod 2. In addition, when the chain rod body 1 is rotated around the shaft body 3, the chain rod 2 is rotated by using the flowing hydropower or wind power acting on the chain rod body 1. It can be simplified. Furthermore, at the shaft support portion where the chain element 1 is rotatably attached to the shaft body 3, at least one of the inner surface of the hole 18 for loosely inserting the shaft body 2 provided in the chain element body 1 or the outer surface of the shaft body 3. Since the groove 7 extending in the vertical direction of the shaft support portion is provided in the shaft support portion, even if foreign matter such as dust, dust or sand enters the shaft support portion between the shaft body 2 and the hole 18, the foreign material can be discharged from the groove 7. .

  As described above, the present invention provides a rotary blade for rotating a chain rod body by attaching the chain rod body to the shaft body and rotating the chain rod body by receiving rainwater flow force or wind power. Therefore, it has a function to show how the chain element rotates by rainwater flow force or wind power, and it has a simple configuration and a completely new `` show function '' that is not found in conventional chains. It is possible to provide a chain with high commercial value with Further, in the shaft support portion in which the chain rod body is rotatably attached to the shaft body, the shaft support portion is vertically disposed on at least one of the inner surface of the hole through which the shaft body provided in the chain rod body is loosely inserted and the outer surface of the shaft body. Since there is a groove extending in the direction, it can be smoothly discharged even if foreign matter such as dust, sand and sand enters the pivotal support part with the shaft of the chain rod body, and it is rotated by the flowing water force of rainwater. The rotation performance of the chain rod body can be maintained.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  The chain rod 2 of the present invention is formed by arranging a plurality of chain rod bodies 1 in the vertical direction through gaps 9, and connecting rain water flowing down from the eave rod with the upper end connected to the eave rod 1 It is intended to make it flow down one after another.

  In the present invention, all the chain rod bodies 1 or a part of the chain rod bodies 1 constituting the chain rod 2 are rotatable with respect to the shaft body 3. Further, the chain element body 1 is provided with a rotary wing portion 5 for rotating the chain element body 1 in response to the flowing hydropower or wind power of rainwater.

  1 to 3 show an embodiment of the present invention. In this embodiment, a rotary blade portion 5 is provided in a cylindrical body 4 opened up and down to constitute a chain element body 1. A shaft body 3 is rotatably attached to the chain rod body 1, a connecting portion 10 is provided on the shaft body 3, and a plurality of chain rod bodies are vertically arranged by connecting the upper and lower chain rod bodies 1 with the connecting portion 10. 1 shows an example in which a chain rod 2 is provided, and in this embodiment, the flow of rainwater is received by a rotating blade portion 5 to rotate the chain rod body 1.

  In the embodiment shown in the figure, an example in which the chain element body 1 is configured by attaching the rotary blade portion 5 separate from the cylindrical body 4 in the cylindrical body 4 having a square or circular cross section with the top and bottom opened. It is shown. In this way, by assembling the separate cylindrical body 4 and the rotary blade portion 5 to form the chain element body 1, even if the rotary blade portion 5 has a complicated shape, it can be easily molded from a synthetic resin. Can do.

  The cylindrical body 4 is formed such that the lower opening 8 is smaller than the upper opening 6 and the cross-sectional shape of the cylindrical body 4 gradually decreases from the top to the bottom. A locking projection 11 projects from the inner surface of the wall portion of the cylindrical body 4 at a position drawn below a certain dimension from the opening edge of the upper opening 6.

  The rotary blade portion 5 is configured by radially projecting blade portions 13 around the central shaft portion 12, and the blade portions 13 are twisted around the central shaft portion 12. Further, the protruding side end of each blade portion 13 has the same inclination as the inclination of the inner surface of the wall portion along the inner surface of the wall portion of the cylindrical body 4. Further, a hole 18 penetrating vertically is provided in the central shaft portion 12.

  The rotating blade portion 5 is fitted from the upper opening 6 of the cylinder body 4 so that the protruding side ends of the plurality of blade portions 13 abut against the inner surface of the wall portion of the cylinder body 4 and the upper ends of the blade portions 13 are engaged with the locking projections 11. The rotor blade 5 is housed inside the cylinder 4 by being locked. In this state, the position of the upper end of the rotor blade 5 is a fixed dimension (dimension L in FIG. 1) from the upper end of the cylinder 4. The center shaft portion 12 is coaxial with the center axis of the cylinder 4.

  The shaft body 3 is vertically divided into an upper shaft portion 14 and a lower shaft portion 15, and a connecting portion 10 is provided at each of an upper end portion of the upper shaft portion 14 and a lower end portion of the lower shaft portion 15. A connecting portion 16 is provided at the lower end portion of the upper shaft portion 14, and a connected portion 17 is provided at the upper end portion of the lower shaft portion 15.

  One or both of the upper shaft portion 14 to the lower shaft portion 15 is loosely inserted into the hole 18 of the central shaft portion 12 of the chain element 1, and the connecting portion 16 and the connected portion 17 are connected. Thus, the chain element body 1 is rotatable with respect to the shaft body 3 constituted by the upper shaft portion 14 and the lower shaft portion 15. The lower shaft portion 15 is provided with a fall prevention portion 19 for dropping the lower end portion of the central shaft portion 12.

  In the shaft support part in which the chain rod body 1 is rotatably attached to the shaft body 3, a groove extending in the vertical direction of the shaft support portion is formed on at least one of the inner surface of the hole 18 of the chain rod body 1 or the outer surface of the shaft body 3. 7 is provided.

  As shown in FIG. 4, the groove 7 extending above and below the shaft support portion is provided with one or more straight grooves 7a straight in the vertical direction on at least one or both of the inner surface of the hole 18 and the outer surface of the shaft body 3, or As shown in FIG. 5, a curved groove 7b having a curve is provided on at least one or both of the inner surface of the hole 18 and the outer surface of the shaft body 3. For example, a spiral groove is formed as the curved groove 7b.

  As described above, the chain rod 2 is formed by connecting the plurality of chain rod bodies 1 that are rotatable to the shaft body 3 with the connecting portion 10 up and down.

  When rainwater flows into the chain rod body 1 from the upper opening 6 of the cylindrical chain rod body 1, the rainwater hits the inclined surface of the spiral rotor blade 5 formed around the central shaft portion 12. The rotor blade 5 flows down as a spiral flow on the rotor blade 5. At this time, the rotor blade 5 comes into contact with the inclined surface of the rotor blade 5 from the upper opening 6 as shown by the arrow A in FIG. A force that rotates around the body 3 acts, and the rainwater flows in a spiral flow along the spiral rotor blade 5 to flow through the chain body 1, thereby Further, a rotating force acts, whereby the chain element 1 rotates about the shaft 3 as shown by the arrow B in FIG.

  In this way, the rainwater that has become a spiral flow itself while rotating the chain element 1 flows downward as a spiral flow from the lower opening 8 of the cylindrical body 4, and flows through the gap 9 to another position located below. It flows down into the upper opening 6 of the chain element 1.

  The rainwater flowing down from the upper opening 6 of another chain element 1 located below hits the inclined surface of the spiral rotating blade portion 5 in the same manner as described above and flows down as a spiral flow on the rotating blade portion 5. As a result, the lower chain element 1 rotates around the shaft 3 in the same manner as described above.

  Similarly, all the chain rod bodies 1 can be rotated by successively rotating the lower chain rod body 1 around the shaft body 3.

  In this embodiment, when rainwater flows as described above, it can be seen that the chain element 1 rotates due to the rainwater flow force, and the rainwater spirals in the gap 9 between the upper and lower chain element bodies 1. You can see how it flows. As a result, the conventional chain rod body 1 does not rotate, and in the gap 9 between the chain rod bodies 1, it can appear in the conventional chain rod 2 as compared with the case where only rainwater can be seen flowing straight. The movement of rainwater and the movement of the chain element 1 that was not present can be revealed.

  By the way, when the chain rod body 1 is pivotally supported with respect to the shaft body 3, it is installed outdoors, and rainwater flows into the interior, so that the shaft support portion between the shaft body 2 and the hole 18 is trashed. There is a risk that foreign matter such as dust and sand may enter and the rotation performance of the chain element 1 may be lowered. However, in the present invention, the chain element 1 is rotatably attached to the shaft body 3 as described above. In the shaft support portion, the groove 7 extending in the vertical direction of the shaft support portion is provided on at least one of the inner surface of the hole 18 provided in the chain rod body 1 or the outer surface of the shaft body 3. Even if foreign matter such as dust, dust or sand enters the shaft support portion, the foreign matter can be discharged from the groove 7.

  Here, in the case where the groove 7 made of a spiral groove is formed on the inner surface of the hole 18 provided in the chain rod body 1 that is rotated by the rainwater flow force, the spiral winding direction from the upper end to the lower end in a plan view of the spiral groove However, in the plan view, when the direction of rotation is opposite to the direction of rotation caused by the rainwater flow force of the chain rod body, the foreign matter is in the groove 7 but is difficult to fall in contact with the outer surface of the shaft body 3. However, it is transported from the top to the bottom along the spiral groove that is rotated by the rotation of the chain element 1 and is smoothly discharged from the lower end of the spiral groove located at the lower end of the hole 18.

  On the other hand, when the groove 7 made of a spiral groove is formed on the inner surface of the hole 18 provided in the chain rod body 1 that is rotated by the rainwater flow force, the spiral winding direction from the upper end to the lower end in a plan view of the spiral groove is In a plan view, when the direction of rotation is the same as the direction of rotation due to the rainwater flowing force of the chain rod body 1, it is a foreign material that has entered the groove 7 but is difficult to fall on contact with the outer surface of the shaft body 3. Even if the chain element 1 is rotated, it is transferred from the bottom to the top along the spiral groove and is smoothly discharged from the upper end of the spiral groove. Therefore, in this case, the action of discharging the foreign matter from the upper end of the pivot portion is effective, and therefore it is difficult for the foreign matter to enter from the upper end of the pivot portion.

  Further, when the groove 7 formed of a spiral groove is formed on the outer surface of the shaft body 3 that does not rotate, the spiral winding direction from the upper end to the lower end in the plan view of the spiral groove is the rainwater of the chain rod body 1 in the plan view. If it is in the same direction as the rotation direction rotated by the downflow force, even if it is a foreign object that has entered the groove 7 but does not easily fall due to contact with the outer surface of the shaft body 3, it will not rotate due to the rotation of the chain element body 1. It is transferred from the top to the bottom along the spiral groove provided on the outer surface of the shaft body 3 and is smoothly discharged from the lower end of the spiral groove located at the lower end of the hole 18.

  On the other hand, when the groove 7 made of a spiral groove is formed on the outer surface of the shaft 3 that does not rotate, the spiral winding direction from the upper end to the lower end in the plan view of the spiral groove is the rainwater of the chain rod body 1 in the plan view. When the direction of rotation is opposite to the direction of rotation due to the flow-down force, foreign matter that enters the spiral groove provided on the outer surface of the shaft body 3 and contacts the inner surface of the hole 18 of the rotating chain element 1 and does not easily fall. Even if it exists, it is transferred from the bottom to the top along the spiral groove by the rotation of the chain element 1 and is smoothly discharged from the upper end of the spiral groove. Therefore, in this case, the action of discharging the foreign matter from the upper end of the pivot portion is effective, and therefore it is difficult for the foreign matter to enter from the upper end of the pivot portion.

  In the above-described embodiment shown in FIG. 1 and FIG. 2, an example in which the spiral winding direction in the rotary blade portion 5 of the plurality of chain rods 1 arranged in the vertical direction is the same direction is shown. In this case, the chain rod 2 is drained while rotating the plurality of chain rod bodies 1 in the same direction by the flowing force of rainwater, but the spiral winding direction in the rotary blade portion 5 of the plurality of chain rod bodies 1 is the same. By mixing the one that is in one direction and the one that is in the opposite direction, the chain element 1 that rotates in one direction due to the flow of rainwater and the chain element 1 that rotates in the opposite direction are mixed. In this embodiment, the movement of the rainwater and the movement of the chain element 1 that could not appear in the conventional chain 2 can be revealed.

  In any of the above-described embodiments, the chain rod 2 may be configured by using a plurality of chain rod bodies 1 having different inclination angles of the rotary blade portion 5, and in this case, a chain rod having a high rotation speed is used. The body 1 and the slow chain element 1 are mixed, and the movement of the rainwater and the movement of the chain element 1 that cannot be revealed by the conventional chain 2 can be revealed.

  Moreover, in the said embodiment, the shaft body 3 is rotatably attached to the chain rod body 1, the connecting portion 10 is provided on the shaft body 3, and the upper and lower chain rod bodies 1 are connected by the connecting portion 10, Although an example in which a chain rod 2 in which a plurality of chain rod bodies 1 are arranged in the vertical direction is shown, the shaft body 3 is made of a linear material (not shown) that is long in the vertical direction, such as a wire or a bar. The chain rod body 1 may be formed by attaching the chain rod body 1 to the linear material so as to be rotatable a plurality of times in the vertical direction. Also in this embodiment, the groove 7 extending in the vertical direction of the shaft support portion is provided on at least one of the inner surface of the hole 18 provided in the chain rod body 1 or the outer surface of the shaft body 3 made of a linear material long in the vertical direction.

  In addition, each of the above-described embodiments is an example in which the chain element 1 is provided with the rotating blade portion 5 that rotates the chain element 1 by receiving the flow of rainwater. You may provide the rotary blade part 5 for receiving the wind force on the outer surface and rotating the said chain rod body 1. Of course, also in this embodiment, the groove 7 extending in the vertical direction of the shaft support portion is provided on at least one of the inner surface of the hole 18 provided in the chain rod body 1 or the outer surface of the shaft body 3 made of a linear material long in the vertical direction.

It is sectional drawing of the chain rod of one Embodiment of this invention. It is a front view same as the above. The chain | strand rod body used for the same as the above is shown, (a) is a perspective view, (b) is an exploded perspective view. It is a partially broken perspective view which shows the example which formed the linear groove | channel same as the above. It is the partially broken perspective view which shows the example which formed the curve groove | channel same as the above.

Explanation of symbols

1 chain rod 2 chain rod 3 shaft 4 cylinder 5 rotor blade 7 groove

Claims (1)

  In a chain rod in which a plurality of chain rod bodies are arranged in the vertical direction, the chain rod body is rotatably attached to the shaft body, and the chain rod body is subjected to rainwater flow force or wind force to receive the chain rod body. An inner surface or a shaft body of a hole through which the shaft body provided in the chain rod body is loosely inserted in a shaft support portion provided with a rotating blade portion for rotating the body and rotatably mounting the chain rod body on the shaft body A chain rod comprising a groove extending in the vertical direction of the shaft support portion on at least one of the outer surfaces of the shaft.

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