JP2735332B2 - Retractable eaves gutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a retractable eaves gutter used in a snowy region, and more particularly, to a maintenance mechanism for simplifying a switching mechanism for switching between a use posture and a storage posture. The present invention relates to a technique for making it easy to carry out cold resistance sufficiently, and for stably switching a long eaves gutter between a use posture and a storage posture by electric drive.

[Background Art] Conventionally, an eaves gutter used in a snowy region is stored in a storage position during a snowfall season, and is projected to a use position during a rainy season. Various such stowage eaves have been proposed, and the present inventors switch the eaves gutter 1 between the use posture and the stowage posture by expanding and contracting the cylinder C as shown in FIG. Etc. are proposed.

[Problems to be Solved by the Invention] By the way, switching between the use posture and the storage posture of the eaves gutter 1 is limited to the snowy season and is not performed several times a year. In the type in which the eaves gutter 1 is driven and moved by the cylinder C, the size of the entire apparatus is increased, costs are increased, maintenance and inspection are troublesome, and particularly, the state in which the cylinder C is protruded and the state in which the cylinder C is contracted are long-term. When the cylinder C is expanded and contracted after being maintained for a long time, when dust or the like is deposited and solidified on the cylinder rod of the cylinder C, it is difficult to contract the cylinder C, which tends to require maintenance, and The piping to C is also required to have a high degree of cold resistance, and is not suitable for driving the eaves gutter 1 in a severe cold season. In addition, since the cylinder C is used, the specification cannot be changed at all even in the manual mode at the production stage.

The present invention has been made in view of such a problem, and an object thereof is to simplify a drive configuration of an eaves gutter,
Maintenance and inspection can be easily performed, and a drive form suitable for operation in a severe cold season can be obtained. In addition, the drive form can be electrically driven to stably switch a long eaves gutter between the specification posture and the storage posture. Is to provide.

[Means for Solving the Problems] A retractable eaves gutter of the present invention holds an eaves gutter 1 laid laterally on an eaves in a substantially horizontal direction and movably in an indoor / outdoor direction, and extends in the length direction of the eaves gutter 1 Bolts 10 are fixed to a plurality of places at intervals along the indoor and outdoor directions, and a sprocket 11 held only rotatably is screwed to the bolt 10, and each sprocket 11 and one motor 14 are used as power transmission means. It is characterized by being connected by connecting.

[Effect] As described above, the eaves gutter 1 laid horizontally on the eaves is held in a substantially horizontal direction and movably in the indoor / outdoor direction, and the eaves gutter 1 is provided in a plurality of places spaced apart in the length direction of the eaves gutter in the indoor / outdoor direction. The bolts 10 are fixed along, and the sprockets 11 held only rotatably are screwed into the bolts 10, and each sprocket 11 and one motor 14
Is connected by a power transmission means, so that power is transmitted from one motor 14 to a sprocket 11 screwed to a plurality of bolts 10 at intervals in the length direction of the eaves gutter 1. The long eaves gutter 1 is moved in a substantially horizontal direction so that it can be stably switched between the use posture and the storage posture.

Examples Examples of the present invention will be described below in detail with reference to the drawings.

The eaves gutter 1 formed in a U-shaped cross section with an open upper surface is the first
As shown in the figure, it is installed inside a storage box 2 that is open under the eaves and that opens to the outside. The storage box 2 is formed in a substantially U-shaped cross-section with a front opening by a top plate 2a, a bottom plate 2b, both side plates 2c, and a back plate 2d. The connecting support member 3 protruding toward the eaves is connected to the rafter 4 under the eaves, and is installed under the eaves such that the rear end of the bottom plate 2b extending rearward from the back plate 2d abuts against the building outer wall 5. . A rail 6 is attached to the lower surface of the top plate 2a at regular intervals in the front-rear direction (indoor / outdoor direction), and a slide bar 7 is slidably fitted in the rail 6. A pair of support rods 8 are suspended from the slide rods 7, and the lower ends of the support rods 8 are connected to eaves gutter suspenders 9 that hold the eaves gutter 1. The eaves gutter 1 is moved back and forth by the slide bar 7 sliding in the rail 6. A bolt 10 projects from the ear holder 9a provided on the eave gutter hanging tool 9 toward the rear (inside of the storage box 2). The rear end of the bolt 10 is supported by a sprocket 11 attached to the top plate 2a of the storage box 2. The inner surface of the sprocket 11 is internally threaded, and the sprocket 11 is screwed to the bolt 10. The sprocket 11 is rotatably disposed between a pair of holding plates 12 suspended below the top plate 2a, and when the sprocket 11 rotates, the bolts 10 move with respect to the holding plate 12 with the rotation of the sprocket 11. To move back and forth. And the above sprocket 1
1, a screw type switching means D is constituted by a bolt 10, a support rod 8, a slide rod 7 fitted to the rail 6, and the like.
The screw type switching means D is disposed on the lower surface of the top plate 2a at regular intervals along the longitudinal direction of the eaves gutter 1.

A chain 13 as power transmission means is stretched over each adjacent sprocket 11, and each sprocket 11 is rotated by driving the chain 13. Then, the adjacent screw type switching means D is synchronized with the chain 13, and the adjacent screw type switching means D are simultaneously driven by the rotation of the chain 13,
The eaves gutter 1 is simultaneously moved back and forth over the entire length by simultaneously driven screw type switching means D. The screw type switching means D is driven on the lower surface of the top plate 2a constituting the storage box body 2. Driving means B is provided. The driving means B mainly comprises a motor 14 and a gear box 15 in which gears driven by the motor 14 are housed. By rotating the motor 14, a sprocket 16 protruding from the gear box 15 is rotated. I can do it. This sprocket 16
Is meshed with a chain 13 wrapped around a sprocket 11 of the adjacent screw type switching means D, and transmits the rotation of the sprocket 16 via the motor 14 to the chain 13 so that the sprocket 11 of the screw type switching means D It is made to rotate. With such a configuration, a plurality of screw-type switching means D can be simultaneously driven while being synchronized by one driving means B, and the eaves gutter 1 can be simultaneously moved back and forth over the entire length. is there.

Thus, when the motor 14 constituting the driving means B is driven, the sprocket 16 is rotated by the motor 14,
By the rotation of the sprocket 16, the sprocket 11 of the screw type switching means D is rotated via the chain 13,
The rotation of the sprocket 11 moves the bolt 10 back and forth, so that the eaves gutter 1 can be moved back and forth. Normally, the eaves gutter 1 is made to protrude from the eaves as shown by the solid line in FIG. 1 and receives rainwater. The received rainwater is drained through the downspout 17. It is. In addition, when the snow is covered, the eaves gutter 1 is stored under the eaves (in the storage box 2) as shown by the imaginary line in FIG. Falling snow can be prevented from being received by the eaves gutter 1, and the eaves gutter 1 can be prevented from being damaged by the impact of falling snow and the load of snow. At this time, the connecting gutter 19 connecting the downspout 17 extended from the eaves gutter 1 and the downspout 18 attached along the building outer wall 5 is freely expandable and contractable. I have to do it. In the one shown in FIG.
Connection gutter 19 slidably connecting outer cylinder 19a and inner cylinder 19b
However, a connecting gutter formed in a bellows shape may be used. Also, the bottom plate 2b of the storage box 2
Is provided with a cutout portion 20 by cutting a position corresponding to the position of the downspout 17 extended from the eaves gutter 1. This is eaves gutter 1
Is stored in the storage box 2, so that the downspout 17 can be stored.

FIG. 3 shows still another embodiment. For example, rainfall is detected by a rain sensor 25 provided on a roof, and the motor 14 is driven based on the result of the detection to cause the eaves gutter 1 to protrude to use. It is made to be. In such a case, the storage box 2
The opening / closing lid may be provided at the opening of the opening, and the opening / closing lid may be opened by driving the opening / closing lid to be opened by the motor 14 operated by the rain sensor 25.

[Effects of the Invention] In summary, the present invention holds an eaves gutter laid horizontally on the eaves in a substantially horizontal direction and movably in indoor and outdoor directions, and indoors and outdoors at a plurality of locations spaced apart in the length direction of the eaves gutter. The bolts are fixed along the direction, and the sprockets that are held only rotatably are screwed to the bolts, and each sprocket and one motor are connected by power transmission means, so the length of the eaves gutter is By transmitting power from one motor to a sprocket that is screwed to multiple bolts at intervals,
There is an advantage that the long eaves gutter can be moved in a substantially horizontal direction and can be stably switched between the use posture and the storage posture.

[Brief description of the drawings]

FIG. 1 is a partially omitted sectional view of an embodiment of the present invention, and FIG.
(A) and (b) are partially cut-away perspective views showing the same driving means, FIG. 3 is a cross-sectional view of another embodiment of the same, and FIG. 4 is a cross-sectional view of a conventional example. The gutter, D is a screw type switching means, 11 is a sprocket, and 14 is a motor.

Claims (1)

(57) [Claims] 1. An eaves gutter laid horizontally on an eaves tip is held in a substantially horizontal direction and movably in an indoor / outdoor direction, and bolts are provided at a plurality of locations spaced apart in the length direction of the eaves gutter along the indoor / outdoor direction. Fixed,
A retractable eaves gutter, wherein a sprocket held only rotatably is screwed into a bolt, and each sprocket and one motor are connected by power transmission means.