KR20060101575A - Portable hoist device, drying apparatus using same and gripper device - Google Patents

Abstract

The present invention is a hook; A wire connected with the hook; A winding pulley wound around the wire; A driving unit for rotating the winding pulley; A rod fixed to a central portion of a side of the winding pulley and formed with a thread; A guide rod fixed in parallel with the rod; A switching plate penetrating the guide rod and sliding about the outer circumferential surface of the guide rod, the switching plate being screwed to the thread of the rod; A limit switch provided to be switched by contact with the switching plate that moves in accordance with the rotation of the winding pulley; Including, when the winding pulley rotates over a predetermined range is configured to stop the rotation of the winding pulley by switching the switching plate in contact with the limit switch, suspended on the hook despite the immature or careless operation of the operator Provides a mobile hoist to prevent cargo and hoist from colliding or cargo from colliding with the ground at excessive speed.

On the other hand, the present invention provides a drying device configured to mount the object to be dried quickly and easily by only one worker, including a mobile hoist and a gripper having a robust locking function as well as easy to loosen.

Movable Hoists, Drying Units, Grippers

Description

Mobile hoist and drying device and gripper using it {PORTABLE HOIST DEVICE, DRYING APPARATUS USING SAME AND GRIPPER DEVICE}

1 is a perspective view of a movable hoist according to an embodiment of the present invention;

FIG. 2 is a perspective view of the movable hoist of FIG. 1 viewed from another direction

3 is a perspective view showing a state in which a part of the case of FIG. 2 is removed;

4 is a perspective view showing a state in which only the outer cover of FIG. 2 is removed;

FIG. 5 is an enlarged perspective view of portion 'A' of FIG. 4 viewed from another direction

6 is a perspective view of a drying apparatus using the mobile hoist of FIG.

7 is an enlarged perspective view of a portion 'B' of FIG.

Figure 8 is a partial cutaway side view of Figure 6

9 is an enlarged view of a portion 'C' of FIG.

Figure 10 is a front view of Figure 6

Figure 11 is a perspective view showing the configuration of the gripper gripped to hold the cradle of Figure 6

12 is a perspective view showing the configuration of a gripper opened to release the cradle of FIG.

Figure 13 is a perspective view showing another embodiment of a mobile hoist

14 is an enlarged perspective view of portion 'D' of FIG.

** Description of symbols for the main parts of the drawing **

1: drying apparatus 100: removable hoist

110: hook 120: wire

130: winding pulley 132: anti-tangling guide rod

133: anti-tangling roller 133b: roller guide hole

134: torsion spring 140: drive unit

150: idler pulley 160, 160 ': hoist stroke length control mechanism

170: case 180: roller portion

190: handle 200: house

210: guide rail 220: hanger rail

300: gripper 310: ring

320: ceiling plate 330: fixed lever portion

340: rotation lever portion 350: locking lever portion

360: spring 400: holder

The present invention relates to a mobile hoist and a drying device and gripper using the same, more specifically, to control the hoisting stroke with more reliability, and despite the carelessness of the operator, the cargo and the hoist collide, The present invention relates to a mobile hoist and a drying device such as a tobacco or a vegetable using the same, which can prevent collision with a gas.

Hoist generally refers to a device used for lifting or unloading a load on a hook suspended from a wire end, and from a small capacity mobile hoist used to lift a small weight of about 10 kgf, in a warehouse, railway station, or factory. Range from high capacity hoists up to about 10 tons used for transporting and assembling machine parts.

At this time, the lifting and lowering of the small cargo to the hook by using the hoist is performed by operating the control remote control, etc. If the worker carelessly or sells a glance even for a while during the operation, the cargo hanging on the hook may collide with the hoist or There was a problem that the cargo or hoist is broken by colliding with the ground at a relatively high speed.

In addition, as the wire is wound irregularly in multiple layers on the winding pulley that winds the wire when lifting a cargo using a hoist, the wire does not move naturally and continuously when the portion of the double layer is unwinded from the winding pulley, This also had a problem that the position control became difficult.

The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to provide a mobile hoist that can reliably control the hoist stroke by allowing the wire to be wound around the winding pulley.

In addition, another object of the present invention is to provide a mobile hoist which can prevent the cargo and the hoist from colliding with the cargo or from colliding with the ground at an excessive speed despite the carelessness of the operator.

In addition, an object of the present invention is to provide a drying device that can be dried by simply mounting a cigarette or vegetables using only one worker using a mobile hoist as described above.

The present invention, in order to achieve the object as described above, the hook; A wire connected with the hook; A winding pulley wound around the wire; A driving unit for rotating the winding pulley; A rod installed on the side of the winding pulley to be ejected or inserted from the side of the winding pulley according to the rotational direction of the winding pulley; A limit switch switched according to the discharge amount of the rod; Including, when the winding pulley is rotated more than a predetermined value provides a movable hoist, characterized in that the rotation of the winding pulley is stopped by the switching of the limit switch by the rod.

This is to convert the rotational movement of the winding pulley into the linear movement of the rod and to place a limit switch within the linear movement range of the rod, thereby making it possible to reliably limit the range of the hoisting stroke of the hook. That is, before the hook is excessively raised and the cargo suspended on the hook collides with the hoist, the limit switch is switched to stop the rotational driving of the winding pulley, thereby preventing collision between the cargo and the hoist. In addition, the limit switch is switched to stop the rotational pulley of the winding pulley to prevent a collision between the cargo and the ground before the hook is excessively lowered so that the cargo hanging on the hook hits the ground at a fast descending speed. It becomes possible.

Therefore, it is effective that two limit switches are provided above and below the moving direction of the switching plate.

At this time, it further comprises a case surrounding the winding pulley, it is preferable that the winding pulley is rotatably fixed to both sides of the case is installed in both end support form. This, when the rotating shaft for rotating the winding pulley conventionally installed in the form of cantilever, can not only eliminate the problem that excessive load is applied to the rotating shaft of the winding pulley, but also to a rotating shaft having a relatively small diameter It is also to be able to support a larger load acting on the winding pulley. In addition, since the winding pulley is supported at both ends, the phenomenon in which the hoist is pulled to one side by the load of the cargo suspended in the hook can also be prevented.

And further comprising a switching plate fixed to the bar to move in accordance with the extraction or insertion of the bar, such that the switching plate is configured to easily switch the limit switch by contacting the limit switch.

In addition, in order to convert the rotational movement of the winding pulley into a linear movement of the rod, the rod is screwed to the side of the winding pulley, a guide rod is fixed to the case in parallel with the rod, fixed to the rod The guide rod is installed to penetrate the switching plate, and the switching plate is configured to slide with respect to the guide rod. Therefore, as the winding pulley rotates, the rod whose rotational movement is constrained to the switching plate can be converted into a linear movement drawn out or inserted from the side wall of the winding pulley.

On the other hand, a rod formed with a male thread is fixed to the central portion of the side of the winding pulley, the switching plate is screwed with the rod and at the same time installed to penetrate so as to slide with respect to the guide rod fixed in parallel with the rod, As the winding pulley rotates, only the switching plate engaged with the rod without inserting or extracting the rod may be configured to move laterally of the winding pulley along the guide rod. Through this, the same effect as described above can be obtained.

And, by further comprising an idler pulley installed between the hook and the winding pulley, it is easy to change the cargo suspended on the hook in the intended hoisting direction, by distributing the load acting on the winding pulley Large loads can be supported.

In addition, a roller for horizontal movement is formed on the outer surface of the case, and the hoist smoothly rides on a pair of rails of "B" or "C" type or one "I" or lying "H" rail. You can move horizontally. In this case, the horizontal movement may be implemented by a separate driving unit, but may also be manually moved horizontally.

At this time, the outer circumferential surface of the roller is formed with a step, so that it is caught on the edge surface of the guide rail, it is possible to move the hoist stably along the extending direction of the guide rail.

And, when the hoist is installed on the guide rail or manually moved horizontally along the guide rail, a handle is formed on the outer surface of the case so that the operator can lift.

In addition, a plurality of rod-shaped anti-tangling guides are formed to be spaced apart from the outer circumferential surface of the winding pulley by a predetermined distance. Therefore, it is possible to prevent the local winding while the wire is wound around the winding pulley, it is possible to prevent the difficult position control of the hook by suddenly loosening a lot of wire while the winding pulley is unwinding.

On the other hand, according to another field of the invention, and provided with a space inside the house formed to mount the object to be dried; A guide rail extending in the longitudinal direction of the house on an upper inner wall of the house; The movable hoist installed on the guide rail; A cradle formed to hang the drying object; A gripper configured to be caught by the hook and movable by the movable hoist and to pick up the holder; Hanger rails formed in pairs to hang the cradle on both sides of the house to keep the cradle in the air; It provides a drying apparatus comprising a.

That is, by applying a mobile hoist consisting of a simple and light structure as described above to the drying device, it is possible to simply hang a cigarette or vegetables on the cradle in the space of the drying device with only one worker, so that the work force required for drying This saves money by reducing labor and work time.

At this time, the hanger rail is formed in a plurality of pairs, it is more advantageous to be configured to mount the cradle in the house in a plurality of layers, it is possible to dry more objects at once.

The gripper may include a ring formed to hook the hook; A ceiling plate fixed to the ring; A first lever extending from the ceiling plate and having a bent end; A second lever rotatable with respect to the ceiling plate, the second lever being extended from the ceiling plate and bent at an end thereof; A first locking lever extending from the ceiling plate; A second locking lever hinged to the first locking lever and having a stage formed thereon; A spring provided between the second locking lever and the ceiling plate to generate torque for rotating the second locking lever toward the ceiling plate; And a stage of the second locking lever is caught or released from the second lever in accordance with the amount of rotation of the second locking lever.

This is a state in which the second latch lever is firmly closed by engaging the second lever with the second lever only by the operation of retracting the second lever with respect to the first lever by the elastic force caused by the spring and the end of the second locking lever. Is maintained, and the second locking lever is slightly pushed to release the locking state so as to be simply released.

In this case, the first lever may be rotatably coupled to the ceiling plate. However, the first lever may be formed in a form fixed to the ceiling plate to rotate the second lever only to more conveniently grip the gripper.

In addition, the first lever and the second lever are preferably formed by branching two tubular materials from the ceiling plate, respectively, the ends of which are bent to face the center of the ceiling plate horizontally. This allows the holder to be held wider as it is formed of two tubular materials so that the holder can be firmly gripped against external impacts, even if the end is bent horizontally without forming a separate holding means. This is to allow the holder to be gripped stably.

In addition, the first reinforcing material formed to connect the two tubes of the first lever; And a second reinforcing material formed to connect two tubes of the second lever; It is effective that the ends of the first and second reinforcing materials are bent to parallel to the bent portions of the ends of the first and second levers, respectively. This reinforces the rigidity of the first lever and the second lever formed of two branched tubular materials through the first reinforcement material and the second reinforcement material, and at the bending end of the first lever and the second lever, and the first reinforcement material and the first reinforcement material, respectively. 2 This is to prevent the up and down swing of the holder by holding the holder between the bending ends of the reinforcement.

At this time, considering the rotational displacement of the second lever, the distance between the bending end of the second lever and the bending end of the second reinforcement than the distance h "between the bending end of the first lever and the bending end of the first reinforcement. It is advantageous to form (h ') larger.

In addition, the engaging lever formed to connect between the ceiling plate and the second reinforcing material; And a locking hole formed to penetrate the second locking lever through the locking lever; wherein the end of the second locking lever and the locking hole interfere with each other to allow the second locking lever to be caught and released according to rotation of the second lever. It is preferred to be configured. When the end of the second locking lever and the locking hole are locked to each other and are in a locked state, simply by rotating the second locking lever with a force greater than a spring force, the end of the second locking lever and the locking hole are separated. This is to release the lock state by releasing interference.

And, in order to more easily release the locked state, it is effective that a lever handle is formed on the second locking lever.

On the other hand, the first locking lever and the second locking lever is not formed separately, but formed as a single member, the first locking lever may be hinged to be rotatable with respect to the ceiling plate.

Hereinafter, an embodiment of the present invention will be described in detail.

As shown in Figures 1 to 4, the mobile hoist 100 according to an embodiment of the present invention, the hook 110 formed to suspend the cargo to be hoisted, and the cargo suspended on the hook 110 A wire 120, a winding pulley unit 130 that sequentially winds the wire 120, a driving unit 140 that rotationally drives the winding pulley unit 130, and a winding pulley unit 130 by a predetermined distance. Idler pulley 150 for dispersing and supporting the load of the cargo suspended on the hook 110 and the winding pulley unit 130 and the rotational amount of the winding pulley unit 130 is linked to the lifting stroke of the hook 110 Lifting stroke adjustment mechanism 160 to limit the range, the case 170 formed to surround the winding pulley 130 and the idler pulley 150, so that the horizontal movement of the hoist 100 can be performed by rolling motion The roller unit 180 attached to one surface of the case 170 and horizontal movement can be In the case of carrying out the same or when carrying or installing the hoist 100 is configured to include a handle 190 protruding on both sides of the case 170 to be held by both hands of the operator.

As shown in FIG. 3, the winding pulley 130 includes a winding pulley 131 that rotates in association with the driving unit 140 and a wire 120 having a uniform thickness on an outer circumferential surface of the winding pulley 131. The rod-tangled anti-tangling guide rod 132 and the end of the anti-tangling guide rod 132 installed at 90 ° intervals spaced apart from the outer circumferential surface by a predetermined distance so as to be fixed to one side of the winding pulley 131. The fixing plate 133 is provided.

The drive unit 140 includes a motor 141 that operates by an electrical signal, and a reducer 142 that increases torque by reducing the rotational speed between the motor 141 and the winding pulley 131. Here, the reducer 142 may be applied in any form such as a worm gear set or a bevel gear set.

The idler pulley 150 has a groove 150a for guiding the wire 120 at the center of the outer circumferential surface thereof, and the wire 120 connected to the hook 110 that suspends the cargo is idler pulley 150 as the cargo shakes. Slip on the outer circumferential surface of the rod) to prevent rocking.

As shown in FIG. 5, the hoist stroke adjusting mechanism 160 includes a rod 161 screwed to a female threaded portion formed at a central portion of the side of the winding pulley 131, and a rod to move integrally with the rod 161. The switching plate 162 fixed to the 161, the guide rod 163 fixed to the fixing plate 133 to be parallel to the rod 161, and a pair of fixed to the side wall 172 of the case 170 A support plate 164 and limit switches 164 and 166 fixed to the pair of support plates 164, respectively.

Here, the guide rod 163 is fixed to the fixing plate 133 by the double nut 163a to constrain the rotational movement, and the switching plate 162 sliding along the guide rod 163 is also attached to the rod 161. It is penetrated also by the rotational motion is constrained. Accordingly, the rod 161 is linearly extracted from the side of the winding pulley 131 or inserted into the winding pulley 131 according to the rotation of the winding pulley 131. That is, the rotational movement of the winding pulley 131 is converted to the linear movement of the rod 161, and the movement amount by the insertion or ejection of the rod 161 converted into the linear movement is between the rod 161 and the winding pulley 131. Depends on the pitch of the thread.

Therefore, in consideration of the outer circumference of the winding pulley 131, the lifting stroke distance of the hook 110 is converted into the rotation speed of the winding pulley 131, and from the converted rotation speed of the winding pulley 131, the rod 161 Considering the pitch of the screw thread to which the winding pulley 131 is fastened, the movement amount of the rod 161 is converted. After determining the positions of the two limit switches 165 and 166 in contact with the switching plate 162 in consideration of the movement amount of the converted rod 161, the limit switch ( By fixing the 165 and 166, it is possible to limit the hoisting stroke of the hook 110 to within a predetermined range. In other words, the lifting stroke distance of the hook 110 is limited by the moving distance of the switching plate 162 between the switching portions 165a and 166a of the two limit switches 165 and 166.

Thus, by setting the range of hoisting stroke in advance according to the working environment, despite the immaturity or carelessness of the worker, the hook 110 that suspended the cargo excessively rises at a high hoisting speed and collides with the hoist 100. Or it can be lowered too much to collide with the ground to prevent the cargo, etc. from being damaged.

The case 170 includes a side cover 171 on which the driving unit 140 is mounted, a side wall 172 on which the hoist stroke adjusting mechanism 160 is mounted, and a cover cover 173 formed to cover the hoist stroke adjusting mechanism 160. ), A lower wall 174 covering the lower portion of the winding pulley 131, an upper wall 175 covering the upper portion of the winding pulley 131, a rear portion of the winding pulley 131, and a front portion of the idler pulley 150. Covering front and rear walls 176, support brackets 177 on which the roller unit 180 is installed, connecting rods 178 connecting the two side walls 172, 173 with a predetermined strength, and idler pulley 150 It is configured to include a rotating shaft 179 is fixed between the rotation and installed between both side walls (172, 173).

Here, a through hole (not shown) smaller than the fixing plate 133 is formed in the side wall 172 so that the fixing plate 133 to which the winding pulley 130 is fixed may be fixed to the side wall 172. . Therefore, the winding pulley 131 is rotatably installed between the two side walls (171, 172) in both end support forms. Therefore, even if the rotating shaft 131a for rotating the winding pulley 131 has a relatively small diameter, the winding pulley 131 installed in the form of both ends supports the winding pulley 131 installed in the cantilever shape even at a larger hoisting load. I can endure it. Similarly, the idler pulley 150 is also supported by both side walls 171 and 172 of the rotating shaft 179, so that both ends of the support form can withstand a greater hoisting load.

The roller unit 180 is rotatably fixed to the support bracket 177. That is, urethane rollers 182 are rotatably mounted at both ends of the roller rods 181 penetrating the support brackets 177, respectively. At this time, the outer circumferential surface of the roller 182 is formed by a step (h) shown in Figure 4, so that the movable hoist 100 can move smoothly in the horizontal direction along the guide rail without departing from the guide rail do.

The handle 190 is formed to protrude on both side walls (171, 172) of the front portion of the case 170, it can be lifted at the same time with both hands of the operator can not only carry or install the hoist 100, but also guide The hoist 100 can be easily moved horizontally on the rail. At this time, the handle 190 is formed as one member can withstand a greater external force. Unexplained reference numeral 190a in the drawing refers to the connection portion of the handle 190 is exposed.

The operating principle of the mobile hoist 100 configured as described above is as follows.

An operator holds the handle 190 of the mobile hoist 100 with both hands according to an embodiment of the present invention, and the end of the roller 182 has a pair of "b" type or "c" type guide rails. Install on the runway of the guide rail to engage the edge of the Then, when the operator turns on the power and drives the motor 141, the rotation shaft 131a connected to the winding pulley 131 by the reduction gear 142 connected to the motor 141 is reduced by the reduction ratio than the rotation speed of the motor 141. It rotates slowly. The winding pulley 131 is rotated in the forward or reverse direction according to the rotational driving direction of the motor 141.

When the winding pulley 131 rotates in one direction and starts winding the wire 120 connected from the winding pulley 131, the hook 110 at the end of the wire 120 has a central groove 150a in the outer circumferential surface of the idler pulley 150. As the distance from the hoist 100 approaches, it is hoisted according to the guidance of). At this time, even if the worker did not stop the driving of the motor 141 even though the hook 110 was very close to the hoist 100 due to carelessness, the rod 161 according to the rotation of the winding pulley 131. The switching plate 162 is switched in contact with the switching unit 165a of the limit switch 165 by the linear motion of the () to automatically cut off the driving power of the motor 141.

On the contrary, when the winding pulley 131 rotates to the other side and starts to unwind the wire 120 connected from the winding pulley 131, the hook 110 at the end of the wire 120 has the center groove of the outer circumferential surface of the idler pulley 150. The distance from the hoist 100 descends according to the guidance of 150a. At this time, even if the hook 110, which inadvertently suspends the load by the worker, is very close to the ground, even if the driving of the motor 141 is not stopped, the rod according to the rotation of the winding pulley 131 ( The switching plate 162 is switched in contact with the switching unit 166a of the limit switch 166 by the linear movement of the 161 to automatically cut off the driving power of the motor 141.

On the other hand, the movable hoist 100 according to the embodiment of the present invention described above is a switch 162 is moved with the switch plate 162 is screwed to the central portion of the side of the winding pulley 131 is inserted or extracted, limit switch Although it is configured to switch 165, 166, the movable hoist according to another embodiment of the present invention, the rod 161, the male thread is formed in the central portion of the side of the winding pulley 131 is fixed, the switching plate 162 Is screwed into the rod 161 and is installed through the guide rod 163 fixed in parallel with the rod 161. When the winding pulley 131 rotates, the rod 161 does not move but rotates. In addition, only the switching plate 162 screwed with the rod 161 according to the rotation of the rod 161 may be configured to linearly move in the lateral direction of the winding pulley 131 along the guide rod 163. Through such a configuration, the same effect as in the embodiment of the present invention can be obtained, and the insertion / extraction movement of the rod 161 is eliminated, thereby enabling a more stable movement structure.

Meanwhile, the movable hoist 100 ′ according to another embodiment of the present invention may be configured as shown in FIGS. 13 and 14. That is, the bar-shaped tangling prevention guide installed at 90 ° intervals spaced apart from the outer circumferential surface by a predetermined distance so that the wire 120 wound around the winding pulley part 130 is wound on the outer circumferential surface of the winding pulley 131 at a uniform thickness. The rod 132 is formed, and additionally, the anti-tangling roller 133 is rotatably installed to press the winding pulley 131 with a predetermined force F.

Here, the case 170 in which the rotation support rod 133a of the entanglement prevention roller 133 is installed so that the entanglement prevention roller 133 can be pressed by a predetermined force F toward the outer circumferential surface of the winding pulley 131. ) Is formed with a roller guide hole 133b for allowing the horizontal movement of the anti-entanglement roller 133, and compresses by a predetermined value so that the anti-entanglement roller 133 can press the predetermined force F in the horizontal direction. Torsion spring 134 is installed is installed on the spring mounting projection (134a). That is, the torsion spring 134 is inserted and installed to have a predetermined amount of compression on the spring seating protrusion 134a, one end contacts the fixing protrusion 134b, and the other end of the torsion spring 133a of the roller 133. By contacting, the anti-entanglement roller 133 can always be pressed in the direction F indicated by the arrow of FIG. Through this, the tangle preventing roller 133 in contact with the outer circumferential surface of the winding pulley 131 is always pressurized while the wire 120 is wound around the winding pulley 131, thereby preventing the tangling guide rod 132 and the winding pulley ( The wire 131 can be wound to a uniform thickness.

Meanwhile, the configuration of another embodiment 100 'of the present invention is similar to that of the embodiment 100 of the present invention, and is indicated by the same or corresponding reference numerals. The hoisting stroke adjusting mechanism 160 ′ according to another embodiment 100 ′ of the present invention is substantially similar in configuration to the hoisting stroke adjusting mechanism 160 according to the embodiment 100, and has a guide rod 163. It has a difference in the points formed by these two.

Hereinafter, a drying apparatus according to an embodiment of the present invention using the mobile hoist 100 will be described in detail.

In general, the cradle 400 is a work unit for drying cigarettes or vegetables, such as hanging from cigarettes or vegetables becomes about 30kgf to 60kgf becomes very heavy. Therefore, not only carrying the power of the worker but also air mounting in the house 200 is not only a risk of a safety accident, but even if several people want to mount the work in the cramped space in the house 200 is inefficient, There has been a search for a method of simply and quickly mounting the heavy cradle 400 using a hoist in a drying apparatus without force.

The present invention has been invented according to the necessity as described above, as shown in Figures 6 to 11, the drying apparatus 1 according to an embodiment of the present invention is mounted to dry the tobacco or vegetables in the air to dry House 200 having a space therein, a movable hoist 100 installed to be movable along a guide rail 210 fixed to an upper inner wall of the house 200, and a hook 110 of the hoist 100. The gripper 300 is formed to easily hold the cradle 400 in a state, and comprises a cradle 400 for mounting a cigarette or vegetables.

The cradle 400 is formed in an elongated rectangular shape, and a plurality of ribs 410 are formed to hang as many cigarettes or vegetables as possible.

As shown in FIG. 11, the gripper 300 includes two lever parts 330 and 340 for holding the cigarette 400 suspended from the cigarette in a balanced manner. That is, the gripper 300 is a hook 310 formed to be hooked to the hook 110 of the hoist 100, a ceiling plate 320 fixed to the hook 310, and welded and fixed to the ceiling plate 320. And a fixed lever part 330 holding the cradle 400, and rotatably fixed to the ceiling plate 320, and rotating toward the fixed lever part 330 to hold the cradle 400. The coil spring 360 is tensioned and installed by a predetermined length so that a latch lever part 350 formed so as not to release the holder 400 and a force for rotating the latch lever 350 in a clockwise direction is applied thereto. ).

Here, the fixing lever 330 is fixed to the bottom surface of one side of the ceiling plate 320 (330a) is formed by being divided into two and the end of the fixing lever 331 is bent toward the center of the ceiling plate 320 and two fixed The reinforcing material 332 connecting between the lever 331 and the grip auxiliary member formed in a 'c' shape such that the end 331a and the end 333a of the fixing lever 331 are separated by a length indicated by reference numeral h ". It consists of 333.

In addition, the rotation lever part 340 is rotatable on the other bottom surface of the top plate 320 and is rotatable with the hinge 340a therebetween and is branched into two in symmetry with the fixed lever 331. A rotary lever 341 formed at one end thereof bent toward the center of the ceiling plate 320, a reinforcement 342 connecting the two rotary levers 341, and an end 341a of the rotary lever 341 and the A grip auxiliary member 343 formed in a 'c' shape such that the end 343a is spaced apart by the length indicated by the reference numeral h ', and a bending member 344 connected and fixed between the ceiling plate 320 and the reinforcing member 342 in a bent form. It is composed of At this time, the bending member 344 is formed with a locking hole 344a formed to penetrate the second locking lever 352.

In addition, the locking lever 350 is rotated at an angle of about 90 ° with respect to the first locking lever 351 and the first locking lever 351 fixed to extend down perpendicularly to the central bottom surface of the ceiling plate 320. A second locking lever 352 provided so that the step 352a is formed so as to be engaged with the locking hole 344a of the bending member 344 according to the rotational angle with respect to the first locking lever 351; A lever handle 353 protruding from both ends of the two locking levers 352 is provided.

At this time, in order to firmly fix the holder 400 in the vertical direction, the distance h "between the bending end 331a of the fixing lever 331 and the bending end 333a of the stiffener 333 is greater than the height of the holder. However, it is preferable that only a little larger, but in order to firmly fix the holder 400 to the gripper, the rotational displacement of the rotary lever 343 must be taken into consideration, so that the bending end 331a of the fixing lever 331 and the reinforcement 333 are bent. The distance h 'between the bending end 341a of the moving lever 341 and the bending end 343a of the stiffener 343 is larger than the distance h "between the ends 333a.

In addition, the reinforcement 343 of the rotation lever 341 shown in FIG. 11 is further formed to protrude outward so as to grip and pull the operator reinforcement 343 in order to facilitate the rotation operation of the rotation lever 343. do.

On the other hand, when the house 200 is difficult to support the load acting on the guide rail 210 or the hanger rail (220, 230), etc., it is also possible to support the load acting by applying a variety of reinforcement in the house 200. have.

From the foregoing, the second locking lever 352 of the gripper 400 is always forced to rotate in the clockwise direction d1 with respect to FIG. 11 by the coil spring 360, so that the second locking lever ( When the end 352a of the 352 is caught by the locking hole 344a of the bending member 344, the holder 300 is not dropped even when externally impacted, unless the lever knob 353 is artificially pulled down. Since the locked state (self-locking) is maintained, it is possible to hold the cradle 300 with the gripper 400 continuously.

The house 200 is formed to surround the three or four sides, a pair of guide rails 210 of the "b" type or "c" type is fixed with bolts 211 along the upper inner wall, the cradle 400 Hook rails 220 and 230 are formed in two stages along both inner walls so as to be able to hang both sides thereof. Although not shown in the figure, the house 200 may be provided with a heater and a blower for blowing dry hot air.

On the other hand, the coil spring 360 in one embodiment of the present invention is the second locking lever 352 is formed to generate a clockwise rotation torque between the second locking lever 352 and the engaging hole 344a Since it is not formed to maintain the locking force, it is preferable not to use an excessively high spring rigidity. This requires less force to push or pull the lever handle to release the lock. In addition, if the same function as the coil spring 360 of one of the sealing of the present invention may be applied by being replaced by a torsion spring or a leaf spring.

Hereinafter, the operating principle of the drying apparatus according to the present invention configured as described above will be described in detail.

When the worker wants to dry the tobacco or vegetables using the drying device 1, the worker grasps the handle 190 of the mobile hoist 100 and the rollers on the guide rail 210 of the house 200. The movable hoist 100 is installed to raise the 182. Then, after fully releasing the wire 120 wound around the winding pulley 131 by operating the driving unit 140 of the movable hoist 100, the hook 110 is fastened to the hook 310 of the gripper 300.

Then, the gripper 400 is gripped to the hook 110 in order to grip between the lever end portions 331a, 333a, 341a, and 343a of the gripper 300, which hangs a plurality of cigarettes or vegetables to the rib 410. The gripper 300 is laid sideways so that the fixed lever part 330 touches the ground in a suspended state. And, in that state to raise the cradle 400, the central one side is fitted to the ends (331a, 333a) of the fixed lever portion 330. Then, when the moving lever 341 of the moving lever part 340 is rotated in the retracting direction (counterclockwise direction in FIG. 11), the upper side surface and the second locking lever of the locking groove 344a of the bending member 344 are rotated. When the upper surface 352b of the 352 starts to slide and the movement lever 341 rotates to some extent, the state where the end 352a of the second locking lever 352 is locked by the locking groove 344a is locked. do. In this locked state, the lever knob 353 is not released until the lever knob 353 is rotated counterclockwise with reference to FIG. 11 so that the holder 400 can be firmly gripped. In addition, since the cradle 400 is inserted between the bent end portions 331a, 333a, 341a, and 343a of the lever, even when the hoist 100 lifts the cradle 400 or suspends the cradle 400 to perform parallel movement. For some reason, the cradle 400 is not separated from the gripper 300.

When the cradle 400 is firmly gripped by the gripper 300, the operator drives the driving unit of the hoist 100 to raise it by a predetermined height. Then, while holding or pulling the handle 190 of the hoist 100 in both hands, by the rolling of the roller 182 near the hook rails 220 and 230 to mount the hoist 100 on the guide rails 210. Move parallel to. Then, when the driving direction of the hoist 100 is lifted upside down and driven upside down, the hook 110 that hung the cradle 400 comes down, and the worker has both ends of the cradle 400 hook rails 220. Adjust to climb on 230).

When the holder 400 is placed on the hanger rails 200 and 230, the operator releases the lock state of the gripper 300 by rotating the lever knob 353 in the counterclockwise direction d2. At the same time, the rotation lever portion 340 rotates in the clockwise direction d3 and is automatically opened. In this way, by simply separating the holder 400 from the gripper 300 and placing it on the hanger rails 220 and 230, the tobacco or vegetables are floated in the house 200 in the air, which facilitates natural drying or artificial drying. You can make it into an environment.

The working process using the drying apparatus according to the present invention has the advantage that it is possible to mount in a suitable state for drying the cigarette or the like even by one worker. That is, in the conventional drying apparatus, it is impossible to hold the elongated rectangular cradle 400 stably, so that two workers hold both sides of the cradle 400 and another worker has to control the hoist, but the present invention The drying apparatus according to the present invention provides a simpler and faster working environment by allowing the holder 400 to hold the gripper 300 and to carry out the carrying process by one worker.

In particular, in the conventional drying house 200 being used in farms or villages for cultivating tobacco, etc., the mobile hoist 100 and the gripper 300 and the like according to the present invention are applied without any large design change procedure. By doing so, it is possible to provide a simple and fast working environment as described above.

Furthermore, the mobile hoist according to the present invention is configured to set the hoisting height even if the worker is inexperienced in hoist operation, so that the gripper 300 hanging the cradle 400 due to inexperience or carelessness collides with the hoist. It has an advantage that can be prevented in advance.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims. In particular, the gripper according to the present invention, which can be simply locked and at the same time firmly locked and can be easily unlocked, is not limited to being used for the purposes exemplified in the embodiments of the present invention. Can be used as

As described above, the present invention includes a hook; A wire connected with the hook; A winding pulley wound around the wire; A driving unit for rotating the winding pulley; A rod fixed to a central portion of a side of the winding pulley and formed with a thread; A guide rod fixed in parallel with the rod; A switching plate penetrating the guide rod and sliding about the outer circumferential surface of the guide rod, the switching plate being screwed to the thread of the rod; A limit switch provided to be switched by contact with the switching plate that moves in accordance with the rotation of the winding pulley; Including, when the winding pulley rotates over a predetermined range is configured to stop the rotation of the winding pulley by switching the switching plate in contact with the limit switch, suspended on the hook despite the immature or careless operation of the operator Provides a mobile hoist to prevent cargo and hoist from colliding or cargo from colliding with the ground at excessive speed.

In addition, the present invention provides a reliable hoisting height by preventing the wire from suddenly loosening while the hook is lowered by excessively winding the wire in a local position of the winding pulley by an anti-tangling guide provided to be spaced apart from the winding pulley. Provide a mobile hoist to control.

On the other hand, the present invention provides a drying device configured to mount the object to be dried quickly and easily by only one worker, including a mobile hoist and a gripper having a robust locking function as well as easy to loosen.

Claims (38)

With a hook; A wire connected with the hook; A winding pulley wound around the wire; A driving unit for rotating the winding pulley; A rod provided on a side of the winding pulley to be ejected or inserted from a central portion of the side of the winding pulley according to a rotational direction of the winding pulley; A limit switch switched according to the discharge amount of the rod; And the winding pulley is configured to stop the rotation of the winding pulley by switching of the limit switch by the rod when the winding pulley is rotated by a predetermined value or more.  The method of claim 1, And a switching plate fixed to the rod to move together upon the withdrawal or insertion of the rod, wherein the switching plate is configured to switch the limit switch by contacting the limit switch.  The method of claim 2, Further comprising a guide rod fixed in parallel with the rod, The switching plate is installed through the guide rod so as to allow a sliding movement, the rod is a movable hoist, characterized in that the screw is fastened to the winding pulley. With a hook; A wire connected with the hook; A winding pulley wound around the wire; A driving unit for rotating the winding pulley; A rod fixed to a central portion of a side of the winding pulley and formed with a thread; A guide rod fixed in parallel with the rod; A switching plate penetrating the guide rod and sliding about the outer circumferential surface of the guide rod, the switching plate being screwed to the thread of the rod; A limit switch provided to be switched by contact with the switching plate that moves in accordance with the rotation of the winding pulley; And the switching plate is configured to stop rotation of the winding pulley by switching the switching plate in contact with the limit switch when the winding pulley rotates beyond a predetermined range. The method according to any one of claims 1 to 4, The mobile hoist further comprises a case surrounding the winding pulley. The method of claim 5, The winding pulley is a movable hoist, characterized in that the both ends are fixed to the case is installed in both end support form. The method according to any one of claims 2 to 4, The limit hoist is a movable hoist, characterized in that two installed up and down in the moving direction of the switching plate. The method of claim 5, And a idler pulley installed between the hook and the winding pulley. The method of claim 5, A movable hoist, characterized in that the horizontal roller is formed on the outer surface of the case. The method of claim 9, The outer circumferential surface of the roller is a movable hoist, characterized in that the end is formed. The method of claim 9, The roller is a movable hoist, characterized in that formed of a urethane-based material. The method of claim 5, Mobile hoist, characterized in that the handle is formed on the outer surface of the case. The method according to any one of claims 1 to 4, The hoist of claim 1, further comprising an anti-tangling guide rod formed in the direction of the rotation axis of the winding pulley so as to be spaced apart from the outer circumferential surface of the winding pulley. The method of claim 13, The anti-tangling guide is a movable hoist, characterized in that a plurality installed. The method according to any one of claims 1 to 4, A movable hoist, characterized in that it further comprises a tangle preventing roller rotatably installed to press the outer circumferential surface of the winding pulley. The method of claim 15, A roller guide hole elongated to guide rotating support rods formed at both ends of the anti-entanglement roller toward an outer circumferential surface of the winding pulley; A spring installed to generate a force for moving the anti-entanglement roller along the roller guide hole; Removable hoist, characterized in that further comprises. The method of claim 16, The spring is a torsion spring, and the compression hoist is configured to press the anti-tangling roller toward the outer peripheral surface of the winding pulley by the elastic restoring force of the spring. The method according to any one of claims 1 to 4, The driving unit A motor; A reducer connected to the motor and connected to the winding pulley; Mobile hoist, characterized in that configured to include. A house having a space therein and formed to mount a drying object; A guide rail extending in the longitudinal direction of the house on an upper inner wall of the house; A movable hoist according to any one of claims 1 to 4 installed to be movable in parallel with the guide rail; A cradle formed to hang the drying object; A gripper configured to be caught by the hook and movable by the movable hoist and to pick up the holder; Hanger rails formed in pairs to hang the cradle on both sides of the house to keep the cradle in the air; Drying apparatus comprising a. The method of claim 19, The hook rail is formed of a plurality of pairs, characterized in that the drying device is configured to be mounted in the house in a plurality of stages. The method of claim 19, The guide rail is installed so that two "B" type or "B" shaped rails are spaced by a predetermined distance, And the movable hoist is installed such that the end of the roller of the movable hoist extends over the "b" end of the guide rail. The method of claim 19, Further comprising a case surrounding the winding pulley, The winding pulley is a drying apparatus, characterized in that the both ends are fixed to the case is installed in both end support form.  The method of claim 19, The limit switch is provided with two up and down in the movement direction of the switching plate.  The method of claim 19, Drying apparatus characterized in that it further comprises an idler pulley installed between the hook and the winding pulley. The method of claim 19, Drying apparatus characterized in that the horizontal roller is formed on the outer surface of the case.  The method of claim 25, Drying device, characterized in that the outer peripheral surface of the roller is formed with a stage.  The method of claim 19, Drying apparatus characterized in that the handle is formed on the outer surface of the case.  The method of claim 19, Drying apparatus further comprises an anti-tangling guide formed in the direction of the rotation axis of the winding pulley so as to be spaced apart from the outer peripheral surface of the winding pulley by a predetermined distance. The method of claim 19, The gripper is, A ring formed to hook the hook; A ceiling plate fixed to the ring; A first lever extending from the ceiling plate and having a bent end; A second lever rotatable with respect to the ceiling plate, the second lever being extended from the ceiling plate and bent at an end thereof; A first locking lever extending from the ceiling plate; A second locking lever which is hinged to the first locking lever, and has a stage for generating a locking with the second lever; A spring provided between the second locking lever and the ceiling plate to generate torque for rotating the second locking lever toward the ceiling plate; And a stage of the second locking lever is caught or released from the second lever according to the amount of rotation of the second locking lever. The method of claim 29, And the first lever is rotatably coupled to the ceiling plate. The method of claim 29, Each of the first lever and the second lever is formed by branching two tubular materials from the ceiling plate, and an end thereof is bent to be horizontally oriented toward the center of the ceiling plate. The method of claim 31, wherein A first reinforcing material formed to connect two tubes of the first lever; And a second reinforcing material formed to connect two tubes of the second lever; Drying device is characterized in that the ends of the first reinforcing material and the second reinforcing material is bent to be parallel to the bent portion of the end of the first lever and the second lever, respectively. The method of claim 32, A locking lever formed to connect between the ceiling plate and the second reinforcement material; A catching hole formed so that the second catching lever passes through the catching lever; And a stage of the second catching lever and the catching hole are caught or released from each other according to the rotation of the second lever. The method of claim 32, The distance h 'between the bending end of the second lever and the bending end of the second reinforcement is greater than the distance h "between the bending end of the first lever and the bending end of the first reinforcement. Drying apparatus, characterized in that. The method of claim 29, And a lever handle is formed on the second locking lever. The method of claim 19, The gripper is, A ring formed to hook the hook; A ceiling plate fixed to the ring; A first lever extending from the ceiling plate and having a bent end; A second lever rotatable with respect to the ceiling plate, the second lever being extended from the ceiling plate and bent at an end thereof; A locking lever which is rotatable with respect to the ceiling plate and has a stage for generating a hook with the second lever in accordance with a rotation amount; A spring provided between the second locking lever and the ceiling plate to generate torque for rotating the locking lever toward the ceiling plate; And a stage of the locking lever is engaged with or released from the second lever according to the amount of rotation of the locking lever. A ring formed to hook the hook; A ceiling plate fixed to the ring; A first lever extending from the ceiling plate and having a bent end; A second lever rotatable with respect to the ceiling plate, the second lever being extended from the ceiling plate and bent at an end thereof; A first locking lever extending from the ceiling plate; A second locking lever which is hinged to the first locking lever, and has a stage for generating a locking with the second lever; A spring provided between the second locking lever and the ceiling plate to generate torque for rotating the second locking lever toward the ceiling plate; And a stage of the second catching lever is engaged with or released from the second lever according to the amount of rotation of the second catching lever. A ring formed to hook the hook; A ceiling plate fixed to the ring; A first lever extending from the ceiling plate and having a bent end; A second lever rotatable with respect to the ceiling plate, the second lever being extended from the ceiling plate and bent at an end thereof; A locking lever which is rotatable with respect to the ceiling plate and has a stage for generating a hook with the second lever in accordance with a rotation amount; A spring provided between the second locking lever and the ceiling plate to generate torque for rotating the locking lever toward the ceiling plate; And a stage of the locking lever engaged or released from the second lever according to the amount of rotation of the locking lever.

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