Title:
消雪用ブロック装置
Document Type and Number:
Japanese Patent JP7422968
Kind Code:
B2
Abstract:
To provide a snow melting block device that prevents damage to a connecting part between a main pipe and a branch pipe made of polyvinyl chloride that thermally expand and contract in the pipe axis direction due to a temperature change during concrete solidification.SOLUTION: A snow melting block device comprises: a plurality of sprinkler nozzles that are buried on the upper surface of a concrete snow melting block, so as to be flush therewith, at prescribed intervals; a PVC main pipe 2 arranged in the longitudinal direction inside the snow melting block; a plurality of branch pipes 3 connected to the sprinkler nozzle from the main pipe 2; and a connecting pipe 4 having a flow hole 41 communicating with the branch pipe 3 from the main pipe 2. A cylindrical cover member 5 made of an elastic material is fitted to the connecting pipe 4. A lower end surface 5a of the cover member 5 has a curved shape along an outer peripheral surface 2b of the main pipe 2. The lower end surface 5a abuts on the outer peripheral surface 2b of the main pipe 2.SELECTED DRAWING: Figure 3
Inventors:
Yoriaki Shindo
Application Number:
JP2020076356A
Publication Date:
January 29, 2024
Filing Date:
April 07, 2020
Export Citation:
Assignee:
Hokuetsu Snow-Making Machine Industry Co., Ltd.
International Classes:
E01H5/00; E01C11/26; E01H3/04
Domestic Patent References:
| JP2009047283A | ||||
| JP9158142A | ||||
| JP2007297885A | ||||
| JP2006022617A | ||||
| JP2261108A | ||||
| JP62110758A | ||||
| JP62048455U | ||||
| JP59006900Y2 |
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