JPS5825776Y2 - Stem culm pulling device - Google Patents

Description

[Detailed description of the invention] This invention houses a sprocket in a case with an upper and lower halves that are joined by a flange surface provided on the periphery, and a culm lifting claw is attached to a chain wound over this sprocket. The mounting is configured such that the claw protrudes from an opening formed between the case parts on one long side of the case, and the claw is retracted into the case from the terminal end to the starting end of the opening. The present invention relates to a stem culm lifting device configured to be moved.

Conventionally, in the above-mentioned device, the two halves of the flange surfaces were connected directly to each other, so the rattling sound of the case itself due to vibration, and furthermore, the erected stem culm lifting claws were prevented from being connected to the case. The impact sound when the claw is brought down by contacting an attached member, and the friction sound when the tip of the claw is strongly pressed against the inner surface of the case due to centrifugal force as the claw moves through the upper rotating part inside the case. A large amount of noise was generated due to the resonance of these impact sounds and friction sounds in the combined case.

In view of these circumstances, the present invention suppresses the vibration of the case itself, suppresses the rattling sound, and furthermore suppresses the impact sound when the claw opens at the end of the case when the claw is collapsed, and the claw also prevents the upper end rotation part inside the case from occurring. An object of the present invention is to suppress the frictional noise during forwarding, as well as the resonance of the combined case due to these impact noises and frictional noises, to effectively achieve soundproofing, and to simplify the production of elastic bodies and the assembly of devices. purpose.

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

A driving sprocket 3, a tensioning sprocket 4 provided at the upper end of the upper and lower case parts 1 and 2, a guiding sprocket 5, and a tensioning sprocket 6 provided at the lower end.
The stem culm is raised by the claws 7 at appropriate intervals.
. . . is wound around a chain 8 which is rotatably pivoted, and as the chain 8 rotates, the base end of the wind 7 is attached to the claw raising rail 9 attached to the lower case part 2. It is configured so that the winds 7 are caused to protrude from the openings formed along the longitudinal sides of the upper and lower halves of the case 10 and move upright.

At the end of the claw raising movement path, on the lower case part 2,
A thick-walled elastic body 11 is attached for tilting the claw and for forwarding the upper end rotation part while maintaining the claw tilting posture, and the claw 7 is brought into contact with the elastic body 11 as the chain 8 moves. By doing this, the upper end rotating portion is moved while the lowered position is maintained, and the claw 7 is moved to retire into the case 10.

On the side opposite to the opening side of the case 10, a thin rubber gasket 12 is interposed between the flange surfaces of the upper and lower case parts 1 and 2 to suppress vibrations of both the cases 1 and 2, respectively.
The structure is designed to suppress the rattling noise and to suppress the resonance of the upper and lower case parts 1 and 2 due to the impact sound when the claws fall down and the frictional noise when the claws are retracted, thereby suppressing the noise generation.

The elastic body 11 and the rubber gasket 12 are integrally formed, which is more advantageous in terms of manufacturing than the means of separately forming them, and the elastic body is interposed between the side case parts 1 and 2. This is so that it will be advantageous for you to

The shape, form, and material of the elastic body 11 for lowering the claw and for forwarding the upper end rotating portion while maintaining the lowered position can be changed in various ways, and these are collectively referred to as shock-absorbing elastic bodies.

Further, the shape, configuration, and material of the rubber gasket 12 interposed between the flange surfaces of the upper and lower case portions 1.2 can also be changed, and this is collectively referred to as a sound-deadening elastic body.

In summary, the present invention provides, in the stem culm pulling device described at the beginning, a thick-walled structure that extends from the end of the opening to the upper end rotation part to cause the wind to fall down and then to contact and send the upper end rotation part. In addition to providing a shock-absorbing elastic body, a thin sound-deadening elastic body is interposed between the flange surfaces of the case portion on the opposite side of the opening, and both of these elastic bodies are integrally constituted. do.

In other words, the impact sound when the claw collides with the end of the opening and the fallen claw is caused by the impact sound when the claw collides with the end of the opening and the upper end rotating part is brought into contact and sent back. It is possible to effectively suppress the friction noise that occurs when the tips of the claws are strongly pressed against the inner surface of the case due to centrifugal force when the upper end rotation part is fed. Since the sound-deadening elastic body is interposed, it suppresses the rattling noise caused by the vibration of each case part, and also suppresses the resonance of the mating case caused by the impact sound when the claw falls down and the friction sound when the claw is retracted. The noise of the device for raising and lowering can be effectively suppressed, and since both elastic bodies are integrally constructed, it is effective in manufacturing the elastic body and assembling the device.

[Brief explanation of the drawing]

The drawings show an embodiment of the stem culm pulling device according to the present invention, and FIG. 1 is a front view with the upper case portion removed, and FIG. 2 is a sectional view taken along line II-II in FIG. 1. 1.2...Case part, 3...Sprocket, 7...Culm lifting claw, 8...
Chain, 10... Case, 11...
Buffer contact elastic body, 12... Sound deadening elastic body.

Claims (1)

[Scope of utility model registration request] A sprocket 3 is housed in an upper and lower halves of a case 10 that are joined by a flange surface provided around the periphery, and a chain 8 wound around the sprocket 3 is attached to a stem. The culm lifting claws 7 are attached so as to be able to rise and fall freely, and the case portion 1 is mounted on one long side of the case 10.
, the claws 7 are configured to protrude from the openings formed between the openings, and the claws 7 are retracted into the case 10 from the terminal end to the starting end of the openings. In the stem culm pulling device configured to move the stem in a state,
From the end of the opening to the upper rotating portion, the claws 7...
... is provided, and a thick shock absorbing elastic body 11 is provided for causing the upper end rotating portion to come into contact with and return the upper end rotating portion, and on the opposite side of the opening, between the flange surfaces of the case portions 1 and 2. A stem culm lifting device characterized in that a thin sound-deadening elastic body 12 is interposed between the two elastic bodies 11 and 12, and both elastic bodies 11 and 12 are integrally constructed.