JP2010279998A - Compression device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a volume reduction pressing device for waste plastic film which has no possibility of damaging the parts thereof even when roughly operated and moreover, even when excessive lever operation exceeding an allowable load is performed, is prevented from mechanically damaged. <P>SOLUTION: Plate materials 21 into which a rack or bar 4 is inserted are disposed on two places in such a way that one side of the plate materials amplifies press-contact force by utilizing the principle of lever thereby increasing frictional force, consequently transmits a pushing downward force caused by a lever 1 to the rack or bar as a downward thrust by friction, and that the other side of the plate materials is actuated so as to prevent the rack or bar from being operated upward with a frictional force based on the biasing force amplified by a spring 25 by utilizing the principle of lever, whereby the rack and bar are subjected to pitch-feeding downward by oscillatory movement of the lever. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a compression apparatus for compressing and reducing the volume of a plastic film when the plastic film for packaging is no longer needed.

  Conventionally, it has a rack that slides up and down, and a pinion that meshes with the rack and transmits sliding power to the rack. In conjunction with this, the pinion was rotated in one direction, and a downward sliding force was applied to the rack.

  However, because of the structure that transmits the power through the pinion via the pinion, it is necessary to construct a relatively large module gear to withstand the applied pressure, and the one-way clutch employs a ratchet, so the ratchet Excessive force acts on the nails. Moreover, even during normal operation, sudden engagement such as engaging the ratchet pawl while turning the handle provided on the pinion shaft quickly to rotate the pinion is frequently seen, and the impact load For this reason, there was a defect that tooth missing occurred.

  As an improvement measure, in the present invention, the rack or the push bar is directly driven downward without a pinion or the like.

JP 2002-361491 A

  In the present invention, a plate having a hole slightly larger than its diameter is fitted to a rack or a push rod, and the plate is biased upward and supported by a spring passed through the rack or push rod, and one end of the plate is supported. And a push-down member linked to a push lever that swings about an arbitrary position, and a plate having a hole slightly larger than the diameter of the rack or push rod in the upper portion of the push-down member. It is fitted to a rod, one end abuts on a support material such as a pin, a spring urged from the bottom to the other side across the rack or push rod, and swinging with the support material as a fulcrum The clamp apparatus which consists of a clamp board which comprised it and was possible and provided the pressing knob at the front-end | tip is provided.

  The compression device of the present invention uses the principle of leverage and pushes down one end of a plate material passed through a rack or a rod so that the pressure between the plate material and the rack or rod is several times the force of pushing down the plate. By setting the fulcrum, force point, and point of action so that the value obtained by multiplying the pressure by the friction coefficient is greater than the force to push down, the rack or rod and plate will be pushed together with the rack or rod without slipping. Works. When the bias is released after pushing down, the other clamp plate is similarly subjected to the principle of leverage, and the rack or bar receives a force to return upward due to the reaction force of compression, and the friction larger than the return force If the push lever is swung up and down in order to hold it by generating force, the rack or bar will move by pitching downward when it is swung downward, generating pressure and swinging upward. Since there is a spring bias through the rack or push rod when moving, the force point and the point of action are in the same position, so no pressure is generated between the plate and the rack or rod, so the rack or rod Remains in position without moving in conjunction with the plate, and only the plate acts to slide up the rack or bar.

  By connecting the racks or rods for pressurization directly with frictional force and transmitting the push-down drive, because of the connection structure with only frictional force even if it operates violently, there is concern about damage to parts etc. In addition, even if the lever is operated more than the allowable load, slippage occurs between the rack or bar and the plate material, so that mechanical damage can be prevented.

  FIG. 1 is a cross-sectional view of an embodiment of the device of the present invention, wherein 1 is a push lever, 2 is a push-down member, and 3 is a clamp member. The rack or bar is frictionally coupled by the push-down member 2 and is pushed downward, and the waste plastic film put into the case 5 is uniformly pressed through the presser disk 6 placed at the tip of the rack or bar 4. The present invention relates to an apparatus for compressing and reducing the volume in the case 5.

  FIG. 2 is a detailed view of the push-down member, which is passed through one end of the push lever 1 rotatably provided on the rotating shaft 24 and the rack or bar 4 and one end of the plate 21 urged upward by a spring 25 passed through the rack 4. Are linked together via link 22. With such a configuration, when the push lever is held by hand and pushed downward, the plate material 21 moves in a slanting manner with respect to the rack or shaft 4, so that the plate material 21 is like a lever between the hole of the plate material and the rack or rod. Since a pressing force several times as large as the pressing force is generated and a frictional force larger than the pressing force is generated, the plate 21 is frictionally coupled to the rack or the rod 4 and does not slide, and the downward movement of the pressing lever In conjunction with this, the rack or bar 4 is pushed downward to move. In the embodiment, the rotation axis of the push lever is also used as the pinion shaft. However, since the pinion is not involved at all when the push lever 1 is pushed down, it is arbitrarily installed at a position different from the pinion shaft. Of course, it can be done.

  FIG. 3 is a detailed view of the clamp member. One end of the clamp member is slidably locked to the support member 33, and the rack or the bar fitted into the hole through which the rack or the bar passes is sandwiched between the opposite positions from the bottom to the top. A biased spring 32 is provided, and a knob is provided at the tip of the spring 32 to release the lock by being pushed by hand. The clamp plate 31 is urged by the spring 32 to pierce the rack or the rod by the lever principle through the hole passed through the rack or the rod. , The rack or bar 4 acts to prevent the rack 4 from moving upward. However, if the knob 34 is pressed downward, the lever action is released and the rack or bar can be moved upward, and the compression can be released.

The rack 34 can be freely moved upward by manually rotating the handle 41 that rotates the pinion 23 engaged with the rack after pressing the knob 34 by hand to release the clamp. In order to move the rack downward, only the rotation of the handle 41 can be operated in any state.
It is also possible to use a simple round bar instead of the rack. In the case of a round bar, it is possible to hold the round bar by hand and pull it upward, or it is possible to urge the bar upward with a spring (not shown).

Represents a side view of the present invention. Is a detailed view of the push-down member, Is a detailed view of the clamp member, Shows a front view of the apparatus.

DESCRIPTION OF SYMBOLS 1 Push lever 2 Push-down member 3 Clamp apparatus 4 Rack or stick 5 Case

Claims (1)

  The rack or push bar is fitted with a plate with a hole slightly larger than its diameter, and supported by being biased upward by a spring passed through the rack or push bar, and swinging around the plate and an arbitrary position. A push-down member linked with a lever, and a rack or push rod with a hole slightly larger in diameter than the rack or push rod fitted on the rack or push rod at the upper part of the push-down member, and one end of the support member such as a pin A spring urged from the bottom to the top on the opposite side across the rack or push rod is arranged, and it is configured to be swingable with the support material as a fulcrum, and a pressing knob is provided at the tip Volume reduction pressurizer for waste plastic film consisting of clamp members consisting of clamp plates.

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