JP6124263B2 - Reciprocating drive device for reciprocating carrier - Google Patents

Description

  The present invention relates to reciprocating carriers such as ropes, wires, belts, chains, etc., used for transporting various objects, in the forward direction (object transport direction from the loading site to the unloading site) and in the reverse direction (loading). The present invention relates to a reversible drive device that selectively travels in the unloading direction from the unloading site to the loading site.

  In particular, a reciprocating carrier for conveying an object between a loading field and an unloading field by selectively connecting a forward rotating body and a backward rotating body for driving a reciprocating carrier to a unidirectional rotating shaft. Are individually driven in the forward direction and the backward direction.

  It is either the forward rotating body or the backward rotating body that is driven via the one-way rotating shaft by the operation of the engine or the like. The other rotating body not driven acts as a simple follower for guiding the reciprocating carrier.

  In the middle of the reciprocating carrier traveling path between the forward rotating body and the backward rotating body, a driven rotating body for reciprocating carrier guidance for reversing the direction in, for example, a U-shape is separately provided.

  In addition, by setting the diameter of the forward rotating body to be smaller than that of the backward rotating body, using a single rotating shaft, the reciprocating carrier is placed on safety in the forward direction of the loading state of thinned wood, etc. It is driven at a low speed, and in the reverse direction of unloading after unloading, it is driven at a high speed with an emphasis on work time.

  The terms “low speed” and “high speed” merely indicate the relative magnitude of the traveling speed of the reciprocating carrier. “Low speed” is the traveling speed of the reciprocating carrier for safely transporting thinned wood from the loading site to the unloading site. The return speed of the reciprocating carrier in the substantially empty state after the thinned wood is lowered in the accumulation area is set to “high speed” which is larger than “low speed”.

  As described above, in the present invention, for example, a reciprocating carrier for transporting thinned wood is loaded and unloaded by selectively connecting a rotating shaft and a forward rotating body or a backward rotating body for driving the reciprocating carrier. It is driven in each direction of reciprocation.

  Of course, the transport object of the reversible drive device using the reciprocating carrier of the present invention is not only the thinned material. Various items such as luggage, humans, animals including thinned wood can be targeted.

  Conventionally, a carrier such as a wire is set in a loop between a loading place and an unloading place and travels in one direction, so that the thinned material held on the carrying carrier is removed from the loading place. A mechanism for conveying to an unloading site is known (see Patent Document 1 below).

  In the case of this transport mechanism, the loop-shaped transport carrier is driven at a single speed in a single direction. In other words, even when the holding unit that binds the thinned wood travels from the loading site to the unloading site, the thinned material is unloaded and the holding unit in an empty state is restored from the unloading site to the loading site. When traveling, the carrier is moving at the same speed, that is, in the same loop direction.

  At this time, the thinning material bundling holding unit attached to the carrier is passed through the loop path in a single direction while reversing the traveling direction at each of the loading and unloading fields. Is required, and the mechanism for reversing and passing the traveling direction tends to be complicated.

JP 2010-100150 A

  In transporting objects such as thinned wood using conventional loop-shaped carriers, the object holding part is passed along the loop-shaped path while reversing the direction of travel in each of the loading and unloading fields. There was a problem that it was easy to lead to the complexity of the mechanism to go.

  In addition, if the conveyance carrier speed is set to be high in order to shorten the processing time required for the backward operation, there is a problem that it is easy to neglect the safety during the thinning material conveyance in the forward operation.

  On the contrary, if the carrier speed is set low for safety during transport of thinned wood in the forward operation, the return time to the loading site of the thinned wood holding part in an empty state tends to be long. was there.

  Therefore, in the present invention, first, the transport carrier such as thinned wood is not continuously rotated in a loop, but the reciprocating carrier for transport is forwarded from the loading site to the unloading site and from the unloading site. In the reverse direction to the loading site, it was made to make a direct reciprocating movement selectively.

  This selective direct reciprocating movement eliminates the movement form in which the holding unit for the object to be transported passes along the loop path while reversing the traveling direction at the loading and unloading areas, and the reciprocating carrier. An object of the present invention is to realize a simple reversible drive device.

  In addition, it has a simple configuration, is easy to carry and does not require a power supply, and is provided between the reversible drive apparatus and its end driven pulley at an unknown emergency site (no power supply or heavy equipment) in a mountain or river. The purpose is to realize the work of carrying out the victim by the reciprocating carrier for transportation.

  One of the forward rotating body that travels this reciprocating carrier from the loading site to the unloading site and the reverse rotating body that travels from the unloading site to the loading site are driven by the carrier. Selectively coupled to a one-way rotational axis of the source.

  The so-called winding phase relationship of the carrier with respect to each of the forward rotating body and the backward rotating body is set as shown (FIGS. 2 to 5), and the carrier carrier travels during forward driving and backward driving. The direction (clockwise, counterclockwise) is reversed.

  In addition, by making the forward rotating body a small diameter rotating body and the backward rotating body a large diameter rotating body, the forward speed (low speed) with an object to be transported, such as thinned wood, and vice versa The purpose is to optimize the backward speed (high speed) in each state.

  Furthermore, the loop-shaped reciprocating carrier is set in such a manner that the loop end is folded and fixed in the same manner after passing through the other rope end to a ring formed by folding the rope end and fixing with a vinyl tape or the like ( 2 to 4).

  An object of the present invention is to reduce the so-called bumps of the connecting portions between the end portions by this folding and fixing method, thereby stabilizing the connecting portions when they pass through various rotating bodies in the reciprocating carrier traveling path.

The present invention solves the above problems as follows.
(1) A reciprocating carrier (for example, a main rope 9 described later) used for transporting various objects is unloaded from a loading site (for example, a loading site A described later) of the object (for example, an unloading described later). In the reversible drive device that selectively travels in the forward direction to the loading site B) and in the reverse direction from the unloading site to the loading site in the opposite direction,
A rotating shaft (for example, a rotating shaft 3 described later) that is driven to rotate in one direction by a driving source of the reciprocating carrier;
A forward rotating body (for example, a small-diameter pulley 4 to be described later) that is connected to the rotating shaft and travels the reciprocating carrier in the forward direction;
A backward rotating body (for example, a large-diameter pulley 5 to be described later) that is connected to the rotating shaft and travels the reciprocating carrier in the backward direction;
A connection setting member (for example, a clutch mechanism 6 described later) for selectively setting a connection state between the rotation shaft and the forward rotation body or the backward rotation body;
A driven rotation is provided in the middle of the reciprocating carrier path from one of the forward rotating body and the backward rotating body to the other to reverse the traveling direction of the reciprocating carrier in each of the forward path and the backward path. A body (for example, a base driven pulley 7 described later),
The thing of a structure aspect is used.
(2) In (1) above,
The rotation axis is
A single axis common to the forward rotation body and the backward rotation body,
The thing of a structure aspect is used.
(3) In (2) above,
The forward rotating body is
A cylindrical small-diameter rotating body for rotating the reciprocating carrier wound around its own outer peripheral surface at a low speed with the single axis as a rotation center,
The backward rotating body is
A cylindrical large-diameter rotator for causing the reciprocating carrier wound around its own outer peripheral surface to run at a high speed with the single axis as a rotation center,
The thing of a structure aspect is used.
(4) In the above (1), (2), (3),
The reciprocating carrier is
Consisting of a loop,
The thing of a structure aspect is used.

  A reciprocating drive device for a reciprocating carrier having such a configuration is an object of the present invention.

The present invention is based on the above problem solving means.
(11) By the above-mentioned direct shortening traveling, the holding part of the object to be transported eliminates the moving state of passing along the loop path while reversing the traveling direction at the loading and unloading fields, and reciprocates. A simple and reliable reversible drive device can be realized.
(12) In unknown emergency sites (no power supply, heavy machinery) such as mountains and rivers, it is possible to realize the work of carrying out the victims with the main rope provided in the reversible drive device,
(13) Reciprocal speed optimization of the reciprocating carrier with the forward speed (low speed) taking into account the safety of thinned wood transport, etc. and the backward speed (high speed) taking into account the reduction of the return time in the empty state Can
There are effects such as.

Moreover,
(14) When setting a loop-like reciprocating carrier in which the ends of a carrier such as a rope are connected to each other, so-called bumps of the connecting part are reduced, and the connecting part is used to connect various rotating bodies in the reciprocating carrier traveling path. Stabilization when passing,
It has the following advantages.

It is explanatory drawing which shows the outline | summary when thinned material is conveyed from a loading place to an unloading place by driving | running | working of the main rope using the reversible drive device of this invention. It is explanatory drawing which shows the neutral state of the clutch mechanism by which neither the small diameter pulley and the large diameter pulley as a main rope drive source of a reversible drive apparatus are connected with the rotating shaft, ie, the main rope is not driven. It is explanatory drawing which shows the low-speed driving | running | working state of the main rope with which the small diameter pulley was selectively connected with the rotating shaft by switching of a clutch mechanism. It is explanatory drawing which shows the high-speed driving | running | working state of the main rope with which the large diameter pulley was selectively connected with the rotating shaft by switching of a clutch mechanism. It is explanatory drawing which shows the clutch mechanism of a reversible drive device, and the expansion perspective state of the peripheral part.

  The form for implementing this invention using FIGS. 1-5 is demonstrated.

  As described above, the reversible drive device of the present invention can be applied to various types of conveyance objects. However, in the following description, for the sake of convenience of explanation, thinning material conveyance is assumed in mountainous areas.

  In these drawings, the component indicated by the reference number with alphabet (for example, the shaft coupling 2a) indicates in principle that it is a part of the component with the reference number without alphabet (for example, the engine 2).

1 to 5,
A is a loading area for thinned wood to be transported,
B is the unloading area for the thinned wood transported from loading area A,
C is a large number of trees that grow naturally in the transport path between the loading site A and the unloading site B;
D is a reversible driving device fixed to Tachiki C,
R is the direction of rotation of the rotating shaft 3 and the like,
Respectively.

Also,
Reference numeral 1 denotes a base portion of the reversible drive device D, and components of the drive device such as an engine 2, a bearing 3c, a clutch mechanism 6, a base driven pulley 7 and a base side driven pulley support 10 which will be described later are fixed individually. Base,
2 is an engine with a reduction gear fixed to the base 1,
2a is a shaft coupling attached to the output side of the engine 2,
3 is a single rotating shaft in one direction (R direction) that is connected to the shaft coupling 2a and is common to a small-diameter pulley 4 and a large-diameter pulley 5 described later.
3a is a large-diameter shaft portion that is formed in the central portion in the longitudinal direction of the rotary shaft, and regulates the positions of the small-diameter pulley 4 and the large-diameter pulley 5 described later in the longitudinal direction of the rotary shaft,
3b is a key which is embedded in the outer circumferential axial groove portion of the large-diameter shaft portion 3a, and engages with a key groove 6e of a clutch operating portion 6d described later,
3c is a pair of bearings that support and hold both end portions of the rotating shaft,
Respectively.

Also,
4 is attached to one small-diameter shaft portion (between the large-diameter shaft portion 3a and the bearing 3c on the left side of the drawing) of the rotary shaft 3, and a main rope 9 (described later) wound around the outer peripheral surface of the rotating shaft 3 in the forward direction (described later). A small-diameter pulley (forward rotating body) that runs at a low speed in the clockwise direction in the figure for conveying the thinned wood 12 and the holding unit 13 from the loading site A to the unloading site B,
4a is fitted and disposed in a concave portion spaced 180 degrees in the circumferential direction of the annular end surface on the large-diameter shaft portion 3a side of the small-diameter pulley, and is connected to a clutch action concave portion 6h corresponding to a low speed to be described later. , Each of which has a quadrangular cross section (cross section perpendicular to the rotation shaft 3) and a clutch acting convex portion corresponding to a low speed,
5 is attached to the other small-diameter shaft portion (between the large-diameter shaft portion 3a and the right bearing 3c in the drawing) of the rotary shaft 3, and a main rope 9 (described later) is wound around the outer circumferential surface of the rotary shaft 3 in a backward direction (empty). A large-diameter pulley (reverse rotating body) that travels at a high speed in the counterclockwise direction shown in FIG. 4) for transporting the holding unit 13 and the like in the loaded state back from the unloading site B to the loading site A;
5a is fitted and disposed in a concave portion spaced 180 degrees in the circumferential direction of the annular end surface on the large-diameter shaft portion 3a side of the large-diameter pulley, and is connected to a high-speed compatible clutch action concave portion 6k, which will be described later. Each of which has a quadrangular cross section (a cross section in a direction perpendicular to the rotation shaft 3) and a high-speed clutch acting convex portion,
Respectively.

Also,
6 is a clutch mechanism (connection setting member) for selectively connecting one of the small-diameter pulley 4 or the large-diameter pulley 5 with the rotary shaft 3 and setting only one of them to the rotational drive state;
6a is a rotation type operation lever of the clutch mechanism,
Reference numeral 6b denotes a lower portion of the operation lever 6a, which has a "U" shape, and is a pair of leg portions that are set so as to be rotatable with respect to the base 1 in the illustrated left-right direction (FIGS. 2 to 4). ,
6c is a pair of rotation center shafts fixed to the base 1 and acting as the rotation centers of the leg portions 6b (operation lever 6a),
6d is an annular plate-like clutch operating portion that is arranged on the large diameter shaft portion 3a of the rotating shaft 3 so as to be slidable in the axial direction, and is selectively connected to the small diameter pulley 4 or the large diameter pulley 5.
6e is formed over the entire axial direction of the inner peripheral surface of the clutch operating portion 6d, and is connected to the key 3b of the large-diameter shaft portion 3a,
6f is a circumferential concave portion formed on the circumferential side surface of the clutch operating portion 6d,
6g is an annular end surface corresponding to a low speed constituting the small diameter pulley facing side on the left side of the clutch acting portion 6d in the figure,
6h is formed at intervals of 90 degrees in the circumferential direction of the low speed corresponding annular end face 6g, and any two of them separated by 180 degrees are connected to the clutch action convex part 4a of the small-diameter pulley 4, for a total of four, Recessed clutch action concave part corresponding to low speed with each square opening,
6j is a high-speed corresponding annular end surface constituting the large diameter pulley facing side on the right side of the clutch acting portion 6d in the figure,
6k are formed at intervals of 90 degrees in the circumferential direction of the high-speed corresponding annular end face 6j, and any two of them separated by 180 degrees are connected to the clutch action convex part 5a of the large-diameter pulley 5, for a total of four , Each of the rectangular openings, high-speed clutch action concave parts,
6m is attached to the leg-shaped portion 6b in a state of entering the circumferential concave portion 6f of the clutch operating portion 6d, and interlocks with the axial direction of the rotary shaft 3 as the operating lever 6a is rotated, and the clutch operating portion is reduced in diameter. A pair of free rollers for moving and connecting to the pulley 4 or the large-diameter pulley 5;
Respectively.

Also,
7 is a base driven pulley (driven rotor) that is disposed with the rotation center axis perpendicular to the base 1 and reverses the main rope traveling direction on the loading site A side by 180 degrees as shown in FIGS.
8 is a terminal driven pulley that is pulled by a winch 16 to be described later and reverses the main rope traveling direction on the unloading site B side by 180 degrees as in the case of the base driven pulley 7 (FIGS. 2 to 4).
9 is a half-winding (single winding) on the small-diameter pulley 4, and is then rotated 180 degrees in the vertical direction shown in the figure while being guided by the base driven pulley 7. Main rope (reciprocating carrier) in a loop form and an endless form that are inverted 180 degrees in the vertical direction in the figure as guided by the end driven pulley 8 from
Respectively.

Also,
10 is a base side driven pulley support portion fixed to the base portion 1;
10a is a part of the base driven pulley support portion, and an arm portion for holding the base driven pulley 7;
10b is a base-side rotating shaft that is provided between the base 1 and the arm portion 10a and acts as the center of rotation of the base driven pulley 7.
10c is a part of the base side driven pulley support part, and a pair of ring-like parts to which a rope 15 described later is attached,
11 is a terminal-side driven pulley support portion that supports the terminal driven pulley 8 in a rotatable state, and is fixedly held by a standing tree C, a winch 16 or the like.
11a is a part of the end side driven pulley support part, and the end side rotating shaft acting as the rotation center of the end driven pulley 8;
Respectively.

Also,
12 is thinned wood that is transported in a dragged state from loading site A to unloading site B;
13 is a holding part that is fixed to the main rope 9 and holds the thinned wood 12 to be conveyed;
14 are respectively attached to the standing tree C with a rope 15 ', which will be described later, and a pair of lower pulley acting portions that guide both the main rope 9 and the holding portion 13 that is integrally suspended with the main rope 9, and the main rope 9 only. A plurality of upper and lower two-stage pulleys (intermediate pulleys) consisting of a single upper pulley acting part for guiding,
A rope 15 is attached in a strongly engaged state to the standing tree C after passing through a pair of ring-shaped parts 10c of the base side driven pulley support part 10, whereby a rope for securely fixing the reversible drive device D,
15 'is a rope for attaching the upper and lower two-stage pulley 14 to the standing tree C,
16 is a winch for pulling and holding the end driven pulley 8;
A spring balance 17 is provided between the winch 16 and the standing tree C in a state of being attached to the winch 16 and the standing tree C to check the tension of the main rope 9.
Respectively.

  Here, the reversible drive device D includes a base 1, an engine 2, a rotating shaft 3, a small-diameter pulley 4, a large-diameter pulley 5, a clutch mechanism 6, a base driven pulley 7, a base-side driven pulley support 10 and the like.

  The holding peripheral surface portion of the main rope 9 in each rotating body of the small-diameter pulley 4, the large-diameter pulley 5, the base driven pulley 7, the terminal driven pulley 8, and the upper and lower two-stage pulleys 14 is set in a recessed shape with a concave center side of the rotation. ing.

  Each component of the above reversible drive device D, the terminal driven pulley 8, the terminal driven pulley support part 11, the holding part 13 and the upper and lower two-stage pulleys 14 are made of wood, metal (for example, iron, titanium, aluminum, etc.), synthetic It is made of resin. The main rope 9 and the ropes 15, 15 'are made of metal, synthetic resin, wood.

The basic features of the reversible drive device D in the illustrated embodiment are:
(21) On both sides of the base driven pulley 7, the reversal part of the loop-shaped main rope 9 has the same phase as the small-diameter pulley 4 as the forward driving pulley and the large-diameter pulley 5 as the backward driving pulley. Single-winding in a relationship (a mode in which each drive pulley proceeds downward from the illustrated back side, and then proceeds upward from the illustrated front side and again proceeds downward from the illustrated back side)
(22) A main rope drive in which any one of the small-diameter pulley 4 and the large-diameter pulley 5 rotates only in a certain direction in common with each pulley as the clutch mechanism 6 selectively rotates in the horizontal direction in the figure. Connected to the rotary shaft 3 for
Moreover,
(23) When the holding unit 13 that holds and holds the thinned wood 12 to be transported is transported from the loading site A to the unloading site B, the small-diameter pulley 4 for main rope low-speed traveling is connected to the rotary shaft 3. ,
(24) When returning the unloaded holding part 13 from the unloading site B to the loading site A, a large-diameter pulley 5 for main rope high-speed traveling is connected to the rotary shaft 3,
(25) The loop-shaped main rope 9 is set in such a manner that it is folded and fixed in the same manner after passing through the other rope end to the ring formed by folding the rope end and fixing it with vinyl tape or the like.
That is.

  That is, the base driven pulley 7, the forward drive pulley (small diameter pulley 4), the backward drive pulley (large diameter pulley 5), the rotary shaft 3 as a selective drive source of each forward and backward drive pulley, and the clutch mechanism A main rope reversible drive device D having a simple structure composed of 6 or the like is provided.

Further, the clutch action portion 6d integrated with the rotary shaft 3 by the fitting action of the key 3b and the key groove 6e is accompanied by the switching rotation operation of the clutch mechanism 6.
A low-speed traveling mode in which the clutch acting concave portion 6h on the left side of the drawing and the clutch acting convex portion 4a of the small-diameter pulley 4 are coupled (see FIG. 3).
・ High-speed running mode in which the clutch acting concave portion 6k on the right side of the figure and the clutch acting convex portion 5a of the large-diameter pulley 5 are coupled (see FIG. 4).
Is selectively set.

  In both the low-speed driving mode and the high-speed driving mode, the rotary shaft 3 is driven in the same rotational direction by the engine 2.

  In this way, a part of the main rope 9 arranged in a loop between the base driven pulley 7 and the terminal driven pulley 8 is wound around the small diameter pulley 4 in a single manner, and a part of the other path side is also wound. Is wound around the large-diameter pulley 5 in a single manner.

Then, by selectively driving the small-diameter pulley 4 or the large-diameter pulley 5 with the clutch mechanism 6, the entire loop-shaped main rope 9 is
(31) A clockwise traveling state (see FIG. 3) in which the small-diameter pulley 4 rotates and conveys the holding unit 13 and the thinned material 12 accommodated therein to the unloading site B from the loading site A;
(32) a counterclockwise running state (see FIG. 4) in which the large-diameter pulley 5 rotates and the holding unit 13 in an unloaded state is reversely conveyed from the unloading site B to the loading site A;
Set to

  In addition, it is arbitrary whether the reversible drive device D which is a drive mechanism of the main rope 9 is installed in the loading place A or the unloading place B side.

  In the case of illustration (FIGS. 1 to 4), this reversible drive device D is installed on the loading site A side.

  In addition, by setting the connecting portion of the main rope 9 by the above-described folding and fixing method and reducing so-called bumps there, traveling stabilization when the connecting portion passes through various pulleys in the main rope traveling route is achieved. Secured. There is little pain of the main rope 9.

  FIG. 1 shows an overall outline when the thinned wood 12 is transported from the loading site A on the left side to the unloading site B on the right side in the figure by running of the main rope 9 in a loop mode.

  Main between the pulley group (small-diameter pulley 4, base driven pulley 7 and large-diameter pulley 5) of the reversible drive device D installed on the loading site A side and the terminal driven pulley 8 on the unloading site B side A plurality of upper and lower two-stage pulleys 14 are attached to the standing tree C by ropes 15 'in the rope traveling path.

  The upper and lower two-stage pulley 14 includes a pair of lower pulley acting portions that guide both the main rope 9 and the holding portion 13 that is integrated with the main rope 9 and a single upper pulley acting portion that guides only the main rope 9. It is made up of.

  The “upper and lower two-stage pulley” includes a pulley mechanism that the applicant has proposed in Japanese Patent Application No. 2014-83367, and a lower pulley acting portion with a gate that shifts to an open state by contact with the holding portion 13. A pulley mechanism equipped with is used.

  The thinned wood 12 is transported from the loading site A to the unloading site B by the low-speed traveling in the forward direction of the main rope 9 corresponding to the rotational drive of the small-diameter pulley 4. The traveling speed of the main rope 9 in the forward direction is, for example, 0.6 m / sec.

  At this time, the clutch mechanism 6 (operating lever 6a) is set to the state shown in FIG. 3, and the clutch operating concave portion 6h corresponding to the low speed of the clutch operating portion 6d is connected to the clutch operating convex portion 4a of the small-diameter pulley 4.

  After the transportation of the thinned material 12 to the unloading site B, the operator lowers the thinned material from the holding unit 13 to a predetermined portion with the engine 2 stopped (or the accelerator is weakened).

  When the main rope 9 is likely to move by being pulled by the thinned material 12 when the engine is stopped, a known friction brake (not shown) may be applied to the main rope.

  After unloading the thinned wood 12, when returning the empty holding part 13 to the loading site A, the operator switches the clutch mechanism 6 (operation lever 6 a) from the state shown in FIG. 3 to the state shown in FIG. 4. Then, the engine 2 is operated. Or strengthen the accelerator.

  By switching the clutch mechanism 6, the clutch action concave part 6 k corresponding to the high speed of the clutch action part 6 d is connected to the clutch action convex part 5 a of the large-diameter pulley 5.

  By this connection, the large-diameter pulley 5 after the engine is operated and the like rotates together with the rotary shaft 3, and the loop-like main rope 9 wound around the high-speed travels in the backward direction at a high speed.

  As the main rope 9 travels in the backward direction at high speed, the thinned wood 12 is unloaded, and the holding unit 13 in an unloaded state returns from the unloading site B to the loading site A. The traveling speed of the main rope 9 in the backward direction is, for example, 0.9 m / sec.

  FIG. 2 shows a free state in which neither the small diameter pulley 4 nor the large diameter pulley 5 of the drive source of the main rope 9 is connected to the rotating shaft 3. The clutch mechanism 6 is in a neutral state.

  The large-diameter shaft portion 3a of the rotary shaft 3 and the clutch action portion 6d of the clutch mechanism 6 are always integrated by strong connection between the key 3b of the large-diameter shaft portion 3a and the key groove 6e of the clutch action portion. That is, the clutch operating portion 6d is set to always rotate in conjunction with the rotary shaft 3 that is the output shaft of the engine 2.

  However, in the neutral state of the clutch mechanism 6 in FIG. 2, the clutch operating portion 6 d and the small diameter pulley 4 or the large diameter pulley 5 are not connected. Therefore, these pulleys do not rotate and the main rope 9 does not travel.

  At this time, the operation lever 6a of the clutch mechanism 6 is set to an upright state (perpendicular to the paper surface of FIGS. 2 to 4) substantially perpendicular to the base 1.

  As described above, the main rope 9 is single-wound around the small-diameter pulley 4 and the large-diameter pulley 5 in the same winding relationship.

  That is, both the small-diameter pulley 4 and the large-diameter pulley 5 that selectively interlock with the rotation shaft with respect to the single rotation direction R of the rotation shaft 3 (counterclockwise as viewed from the right side in FIGS. 2 to 4). The end driven pulley 8 side of the main rope 9 is set so as to be wound up rather than fed out.

  As shown in FIGS. 3 and 4, the small-diameter pulley 4 (see FIG. 3) and the large-diameter pulley 5 (see FIG. 4) connected to the rotating shaft 3 rotating in the R direction are lower than the respective figures. The main rope is wound around the own pulley.

  By the main rope winding action of the small-diameter pulley 4 and the large-diameter pulley 5 toward the own pulley, the loop-like main rope 9 can surely travel in the forward direction of FIG. 3 and the backward direction of FIG.

  FIG. 3 shows a low-speed traveling mode of the main rope 9 in which the operation lever 6a in the vertically upright state is rotated to the left in the drawing.

  Along with this leftward turning operation, the free roller 6m attached to the operating lever 6a and entering the circumferential concave portion 6f of the clutch action portion 6d presses the clutch action portion to the left side in the figure.

  Due to the pressing action of the free roller 6m on the clutch acting portion 6d to the left side in the figure, the clutch acting portion of the small diameter pulley 4 is guided while the key groove 6e is guided by the key 3b of the rotating shaft 3 (large diameter shaft portion 3a). Move towards.

  Finally, the main rope 9 shifts to the low speed traveling mode in which the clutch acting convex portion 4a of the small-diameter pulley 4 and the clutch acting concave portion 6h of the clutch acting portion 6d (the low speed corresponding annular end surface 6g) are coupled.

  In addition, since the clutch action part 6d is interlocked with the rotating shaft 3, the clutch action convex part 4a of the small-diameter pulley 4 is always coupled to the clutch action concave part 6h, so that a positional deviation in the rotational direction is generated between them. Absent.

When the main rope 9 in FIG.
(41) The rotary shaft 3 and the small-diameter pulley 4 connected to the rotary shaft 3 via the clutch acting portion 6d rotate in the R direction,
(42) The forward direction in which the main rope 9 in a loop form wound around the small-diameter pulley 4 conveys the thinned wood 12 and its holding part 13 from the loading site A to the unloading site B (clockwise as shown in the figure) Run to
(43) The large-diameter pulley 5 acts as a driven pulley for guiding the main rope 9.

  If the operating lever 6a in the low-speed traveling mode in FIG. 3 is rotated toward the large-diameter pulley 5 to return to the original vertical standing state, the clutch mechanism 6 returns to the neutral state in FIG.

  FIG. 4 shows a high-speed traveling mode of the main rope 9 when the operation lever 6a is rotated to the right in the figure.

  Along with this rightward turning operation, the free roller 6m attached to the operating lever 6a and entering the circumferential concave portion 6f of the clutch action portion 6d presses the clutch action portion to the right side in the figure.

  Due to the pressing action of the free roller 6m to the clutch acting part 6d on the right side in the figure, the clutch acting part has a large diameter pulley 5 while its key groove 6e is guided by the key 3b of the rotary shaft 3 (large diameter shaft part 3a). Move towards

  And finally, it shifts to the high-speed traveling mode of the main rope 9 in which the clutch action convex part 5a of the large-diameter pulley 5 and the clutch action concave part 6k of the clutch action part 6d (high-speed compatible annular end surface 6j) are connected.

  In addition, since the clutch action part 6d is interlocked with the rotating shaft 3, the clutch action convex part 5a of the large-diameter pulley 5 is always coupled with the clutch action concave part 6k, and a positional deviation in the rotational direction occurs between them. There is no.

When the main rope 9 in FIG.
(51) The rotary shaft 3 and the large-diameter pulley 5 connected to the rotary shaft 3 via the clutch action portion 6d rotate in the R direction,
(52) The main rope 9 in a loop form wound around the large-diameter pulley 5 in the reverse direction (for example, the counterclockwise arrow shown in the figure) transports, for example, the unloaded holding part 13 from the unloading site B to the loading site A. Direction)
(53) The small-diameter pulley 4 acts as a driven pulley for guiding the main rope 9.

  When the operating lever 6a in the high-speed traveling mode in FIG. 4 is rotated toward the small-diameter pulley 4 to return to the original vertical state, the clutch mechanism 6 returns to the neutral state in FIG.

  Thus, the illustrated reversible drive device has a simple configuration, is easy to carry, and has no power source.

  For this reason, unlike reciprocating thinned wood between known points, this reversible drive device and end driven pulley and the main part between them are also used in unknown emergency sites (without power supply and heavy machinery) during rescue operations in mountains and rivers. The installation of the rope makes it possible to carry out the victims with relative ease.

Of course, the present invention is not limited to the illustrated reversible drive device.
(61) Instead of the small-diameter pulley 4 and the large-diameter pulley 5, pulleys having the same diameter are used. In this case, the forward speed and the backward speed of the main rope 9 with respect to the rotating shaft in the same rotational state have the same value. ,
(62) Instead of the upper and lower two-stage pulley 14, a well-known main rope / holding portion guide first pulley and a main rope guide second pulley are used,
(63) Instead of ropes 15 and 15 ', wire members, cable members, belt members, rope members, etc. are used.
(64) For convenience of explanation in FIG. 1, there is no level difference between the loading site A and the unloading site B. However, in the actual transport environment, there is often a level difference between the two. In some cases, instead of the loop-shaped main rope 9 shown in the figure, a so-called weight drive source for downward movement is provided in the rope part on the lower side of the small-diameter pulley 4 to which the holding portion 13 is not attached. Use the end-type main rope,
You may do it.

A: Loading place for thinned wood B: Unloading place for thinned wood C: Many standing trees D: Reversible drive device R: Direction of rotation

1: Base 2: Engine 2a with reduction gear: Shaft coupling 3: Rotating shaft 3a: Large-diameter shaft portion 3b: Key 3c: Pair of bearings 4: Small-diameter pulley 4a: Low-speed clutch acting convex portion 5: Large-diameter Pulley 5a: High-speed clutch acting convex part

6: Clutch mechanism 6a: Rotating type operation lever 6b: A pair of leg-like parts 6c: A pair of turning center shafts 6d: Annular plate-like clutch action part 6e: Key groove 6f: Circumferential concave part 6g: Annular for low speed End surface 6h: Clutch acting concave portion 6j for low speed: High speed corresponding annular end surface 6k: High speed corresponding clutch acting concave portion 6m: A pair of free rollers

7: Base driven pulley 8: End driven pulley 9: Main rope in loop form
10: Base side driven pulley support
10a: Arm part
10b: Base side rotating shaft
10c: A pair of ring-shaped parts
11: End driven pulley support
11a: Terminal side rotating shaft

12: Thinned wood
13: Holding part
14: Upper and lower two-stage pulley (intermediate pulley)
15, 15 ′: Rope
16: winch
17: Spring balance

Claims (4)

The reciprocating carrier used for transporting various objects is the forward direction from the loading site to the unloading site, and the reverse direction from the unloading site to the loading site. In the reversible drive device for selectively running,
A rotating shaft that is rotationally driven in one direction by a driving source of the reciprocating carrier;
A forward rotating body connected to the rotating shaft and traveling the reciprocating carrier in the forward direction;
A backward rotating body connected to the rotating shaft and traveling the reciprocating carrier in the backward direction;
A connection setting member for selectively setting a connection state between the rotation shaft and the forward rotation body or the backward rotation body;
A driven rotation is provided in the middle of the reciprocating carrier path from one of the forward rotating body and the backward rotating body to the other to reverse the traveling direction of the reciprocating carrier in each of the forward path and the backward path. A body,
A reversible drive device for a reciprocating carrier. The rotation axis is
A single axis common to the forward rotation body and the backward rotation body,
The reciprocating drive device for a reciprocating carrier according to claim 1. The forward rotating body is
A cylindrical small-diameter rotating body for rotating the reciprocating carrier wound around its own outer peripheral surface at a low speed with the single axis as a rotation center,
The backward rotating body is
A cylindrical large-diameter rotator for causing the reciprocating carrier wound around its own outer peripheral surface to run at a high speed with the single axis as a rotation center,
3. A reciprocating drive device for a reciprocating carrier according to claim 2. The reciprocating carrier is
It is a loop,
The reversible carrier reversible drive device according to any one of claims 1 to 3.

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