KR20200085465A - Lifting apparatus with clamping arms - Google Patents

Abstract

The present invention relates to a lifting device provided with a clamping arm. According to an embodiment of the present invention, the lifting device provided with a clamping arm is composed of multiple joints to hold a container but rotate with each other, wherein a separation prevention piece in close contact with or caught on the container is bent and formed on the upper side or lower side. Accordingly, a general cylindrical container without a separate locking protrusion is stably held so as not to be separated in the vertical direction, so that the contents can be easily injected into a target point inside the container. In addition, according to an embodiment of the present invention, claming arm presses the container to come in close contact with the outer surface of the container even when the volume of the container is decreased. Therefore, the contents are withdrawn from the container to prevent the container from being easily separated even when the volume of the container is decreased.

Description

Lifting device equipped with a clamping arm {LIFTING APPARATUS WITH CLAMPING ARMS}

The present invention relates to a lifting device provided with a clamping arm for clamping the container so that the container is prevented from falling off even when the volume of the container is reduced.

In general, heavy goods such as cargo, furniture, and containers that are difficult to transport by manpower are moved up or down to a target point desired by a user using various types of lifting devices.

On the other hand, when a lot of objects are lifted at once, or when food ingredients or medicines are transported and put into a predetermined stirring unit, a plurality of objects, ingredients or medicines, etc. are put in a box or container for efficient operation, and then lifted or transported.

At this time, if the box or container loses its center, the contents of the box or container may spill and lead to a serious accident, so that the container is firmly bound to the lifting device so that the container can maintain its center during transportation and lifting operations. Work entails.

On the other hand, as a related art, Korean Registered Patent No. 10-1061200 (registration date: August 25, 2011) discloses an apparatus for injecting contents into a seasoned stirring vessel.

This Korean registered patent is provided on one side of the stirring unit 20 and includes a conduction mechanism 40 for gripping the carrier 50 and a lift mechanism 30 for lifting the conduction mechanism 40, and the lift mechanism 30 When the carrier 50 and the conduction mechanism 40 are lifted over a certain height, the contents of the carrier 50 are reversed while the carrier 50 is turned over by the interaction between the lift mechanism 30 and the conduction mechanism 40. It is put into the stirring vessel (20).

The Korean registered patent is provided with an approximately'c'-shaped conduction mechanism 40 in which a substantially rectangular parallelepiped carrier 50 is bound to the arm 35 of the lift mechanism 30, so that the center of the carrier 50 is not shaken. It has the advantage of stably lifting the carrier 50 so as not to, but since the conduction mechanism 40 is formed in a predetermined'c' shape, the container provided in a cylindrical shape cannot be gripped, and the conduction mechanism 40 is There is a disadvantage that it cannot be used universally because only the carrier 50 in the shape of a cuboid with protrusions 50 formed on both sides can be elevated.

The present invention has been devised to solve the conventional problems as described above, and the object of the present invention is to hold the container, but consists of a plurality of joints so as to rotate with each other, and prevents separation from being in close contact with or jammed with the container on the upper or lower side. By providing a plurality of clamping arms that are bent on one side, a general container having a cylindrical shape without a separate protruding protrusion is stably gripped so as not to deviate in the vertical direction, so that the contents can be easily introduced to the target point inside the container. It is intended to provide a device.

In addition, the object of the present invention is configured such that even when the volume of the container decreases, the container is not easily dislodged even when the volume of the container decreases because the contents are withdrawn from the container by pressing the container so as to be in close contact with the outer surface of the container. It is intended to provide a lifting device.

The problem to be solved by the present invention is not limited to this, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve this problem, an embodiment of the present invention, a lifting unit formed with a guide portion along the height direction; An outer surface of the container coupled to the guide part and rotatably coupled to the transport part along the guide part and rotatably coupled to the transport part to clamp the container by hinged coupling with each other and reduce the volume of the container. It provides a lifting device equipped with a clamping arm comprising a; clamping unit including a clamping arm for pressing the container to be in close contact with.

According to an embodiment of the present invention, the container is made of a plurality of joints so as to be rotated with each other, and a plurality of clamping arms are provided on the upper side or the lower side to form a bending preventing piece that is in close contact with or hangs from the container, thereby separately engaging There is an effect of stably gripping the general container in the form of a cylinder without a protrusion so as not to deviate in the vertical direction, so that the contents can be easily introduced to the target point inside the container.

In addition, according to an embodiment of the present invention, even when the volume of the container is reduced, the container is not easily disengaged even when the volume of the container is reduced by pulling out the contents from the container by pressing the container to be in close contact with the outer surface of the container. It works.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a lifting device equipped with a clamping arm according to an embodiment of the present invention.
FIG. 2 is a view for explaining a structure in which the clamping unit of FIG. 1 is raised or lowered along a lifting unit.
Figure 3 is an exploded perspective view of the clamping unit of Figure 1;
4 is a plan view of the lifting device provided with the clamping arm of FIG. 1.
5 to 8 are views for explaining various embodiments of the clamping unit of FIG. 1.
9 is a block diagram showing a signal flow of a lifting device equipped with a clamping arm of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. It should be noted that in adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible, even if they are displayed on different drawings. In addition, in describing the present invention, when it is determined that detailed descriptions of related well-known structures or functions may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected to or connected to the other component, but another component between each component It should be understood that elements may be "connected", "coupled" or "connected".

1 is a perspective view of a lifting device equipped with a clamping arm according to an embodiment of the present invention. FIG. 2 is a view for explaining a structure in which the clamping unit of FIG. 1 is raised or lowered along a lifting unit. Figure 3 is an exploded perspective view of the clamping unit of Figure 1; 4 is a plan view of the lifting device provided with the clamping arm of FIG. 1. 5 to 8 are views for explaining various embodiments of the clamping unit of FIG. 9 is a block diagram showing a signal flow of a lifting device equipped with a clamping arm of the present invention.

As shown in these drawings, the lifting device 10 provided with a clamping arm includes a lifting unit 101 having a guide portion 201 along a height direction; The transport unit 103 coupled to the guide unit 201 and moved up and down along the guide unit 201 is rotatably coupled to the transport unit 103, but a plurality of hinges are coupled to each other to clamp the container and the volume of the container is reduced. It characterized in that it comprises a; clamping unit 107 including a clamping arm 105 for pressing the container so as to be in close contact with the outer surface of the container.

The lifting unit 101 includes a body portion 109, a control portion 111, and a driving portion 113.

The body portion 109 is coupled to the clamping unit 107 to be able to move up and down, the inside of the body portion 104 is provided with a guide portion 201 and a ball screw 203.

The guide portion 201 is formed in a height direction inside the body portion 109, and the transfer portion 103 of the lifting unit 101 is movably coupled.

The ball screw 203 is formed along the longitudinal direction of the guide portion 201 and, like the guide portion 201, the transfer portion 103 of the lifting unit 101 is coupled to be able to move up and down.

The ball screw 203 is rotated by the driving unit 113 to raise or lower the conveying unit 103 along the guide unit 201. When rotated by the driving unit 113, the conveying unit 103 is raised or lowered. A thread is formed on the outer circumferential surface as much as possible.

The control unit 111 is provided at the rear of the main body unit 109, and the control unit (ex: touch pad or operation button) on the top so that the lifting unit 101 is raised or lowered as the driving unit 113 is driven for user manipulation. Is provided.

The driving unit 113 is provided with a driving motor 205 for rotating the ball screw 203 while being rotated by being supplied with power to the inside. The driving motor 205 is parallel to the bottom surface through the power transmission gear 207. The ball screw 203 is rotated by reversing the rotation direction of the provided drive shaft in a direction perpendicular to the bottom surface.

Subsequently, the clamping unit 107 is a transfer unit 103 that is movably coupled to the lifting unit 101, and a clamping arm 105 that is rotatably coupled to the transfer unit 103 and rotates to rotate upside down by clamping the container. It includes.

The transfer unit 103 includes a transfer unit 305 that is movably coupled to the guide unit 201, a drive unit 305 for rotating the support body 303 and the clamping arm 105 extending from the transfer unit 301. Includes.

The transfer main body 301 is formed with a guide coupling portion 209 coupled to the guide portion 201 to be slidably moved, and a screw coupling portion 211 movably coupled to the ball screw 203.

Here, the screw coupling portion 211 is formed on the inner circumferential surface with a screw thread that meshes with the thread of the ball screw 203, and by this structure, the transfer body 301 is a guide coupling portion 209 when the ball screw 203 is rotated. As it is moved along the guide portion 201, it is raised or lowered.

The support body 303 protrudes in all directions from the transfer body 301 to support the clamping unit 107, which supports the clamping unit 107 to more stably support the clamping unit 107. 301) protruding from both sides is provided as a pair.

On the other hand, although the support body 303 is not shown in the drawing, the length can be adjusted from the transfer body 301 through a telescopic structure.

If an example of the structure of the support body 303 is described in more detail, the support body 303 has a first support body (not shown), one end of which is coupled to the transfer body 301 and the first extension bar 307. And a second support body (not shown) movably coupled to the second extension bar 309 while being slidably interpolated or extrapolated to the other end of the first support body.

That is, although not shown in the drawing, the second extension bar 309 has a guide projection (not shown) protrudingly formed at an end coupled to the second support body, and the second support body is provided with the second extension bar 309. A sliding groove (not shown) in which the guide protrusion of the second extension bar 307 is movably coupled to the outer surface to be coupled may be formed. By this structure, the user transports the container through the control unit 111. It can be moved forward or backward based on the (301).

The driving unit 305 is rotated by the control signal cs of the control unit 111 to rotate the clamping arm 105 so as to be inverted up and down, and the driving unit 305 when the driving unit 305 rotates And a reduction gear 215 that rotates the rotational axis 311 of the clamping arm 105 by decelerating the rotational speed while reversing the rotational direction of the clamping arm 105 to correspond to the rotational direction of the clamping arm 105.

Subsequently, the clamping arm 105 is rotatably coupled to the support body 303 through the rotating shaft 311, and the container is rotated so that the opening and bottom surfaces of the container are reversed while being raised or lowered by clamping the container.

In addition, the clamping arm 105 is hinged to each other to clamp the container, and even when the volume of the container decreases, the container is pressed so as to be in close contact with the outer surface of the container to prevent the container from being unintentionally released.

When explaining an example of the structure of the clamping arm 105 in more detail, the clamping arm 105 is rotatably coupled to the support body 303 through a rotating shaft 311 formed on both sides, and an upper extension at the top A first clamping arm 317 in which the piece 313 is extended and the lower extension piece 315 is extended at the bottom; A second clamping arm 319 whose one end is hinged so as to be rotatable to the first clamping arm 317 and the upper extension piece 313 is extended at the top; And a third clamping arm 321 disposed opposite to the second clamping arm 319 so that one end is hinged so as to be rotatable to the first clamping arm 317, and the upper extension piece 313 is extended on the upper end. Includes.

That is, the clamping arm 105 may include an upper extension piece 313 and a lower extension piece 315 to prevent the container from coming off in the vertical direction by being in close contact with the container, where the upper extension piece 313 is As an example, as the diameter of the upper outer surface gradually approaches the upper outer surface of the container that gradually decreases, both ends are curved in the circumferential direction based on the central portion, and at the same time, the coupling space 401 increases from the clamping arm 105 to the upper portion. It curves gently inward.

In addition, the lower extension piece 315 is curved in the circumferential direction with respect to the center portion so as to be engaged with the bottom surface of the container while being in close contact with the lower outer surface of the container, for example, the diameter of the lower outer surface gradually decreases toward the lower portion. At the same time, at the same time, the lower portion from the clamping arm 105 includes an extended portion 323 that is gently curved inside the coupling space 401 and a bent portion 325 that is bent to be engaged with the bottom surface of the container from the extended portion 321. do.

As the upper extension piece 313 and the lower extension piece 315 are formed as described above, the present invention prevents the container from flowing to the upper and lower portions when the clamping arm 105 clamps the container, thereby stably elevating and rotating the container. And can be carried.

On the other hand, referring to Figures 5 and 6, the clamping unit 107 according to an embodiment of the present invention, one end is supported by any one of the clamping arm 105 and the other end of the other clamping arm 105 It further includes an elastic member that is supported so that at least one of the clamping arms 105 rotates inside the coupling space 401 to which the container is coupled.

Referring to FIG. 5, such an elastic member may be a coil spring 501, one end of which is supported by one clamping arm 105 and the other end of which is supported by another clamping arm 105, the coil spring 501 ) May provide elastic force such that the second clamping arm 319 and the third clamping arm 321 from the first clamping arm 317 are rotated into the coupling space 401.

Here, when the elastic member is provided as a coil spring 501, the coil spring 501 is supported by a first hinge 503 formed at one end of one of the clamping arms 105, the other end Supported by the second hinge 505 formed at the end of the clamping arm 105, at least one clamping arm 105 is rotated inside the coupling space 401 to provide elastic force to pressurize the container.

Here, the first hinge 503 is formed at the end of any one of the plurality of clamping arms 105 and the second hinge 505 formed at the ends of the other clamping arm 105 is rotated Possibly combined.

In more detail, an example of the structure of the first hinge 503, the first hinge 503 protrudes in the axial direction from the end, the second hinge 505 is rotatably coupled and the coil spring 501 A rotation coupling part 509 having a first support part 507 on which one end is supported; And an elastic member coupling portion 511 protruding in the axial direction from the top of the rotation coupling portion 509 and the coil spring 501 being extrapolated.

Subsequently, to describe in more detail an example of the structure of the second hinge 505, the second hinge 505 is formed to penetrate through the axial direction and is rotatably coupled to the rotation coupling part 509 and the coil spring 501. And a second support portion 515 through which the elastic member coupling portion 511 is interpolated and protruded from the inner circumferential surface of the through coupling portion 513 to support the other end of the coil spring 501.

Here, the first hinge 503 may be formed at both ends of the first clamping arm 317, for example, the second hinge 505 is a second clamping arm rotatably coupled to the first clamping arm 317 It may be formed at each end of the 319 and the third clamping arm (321).

Meanwhile, referring to FIG. 6, the elastic member may be a plate spring 601, one end of which is supported by one of the clamping arms 105 and the other end of which is supported by the other of the clamping arms 105, such a plate spring. 601 is an example, one end is supported by the first clamping arm 317, the other end is supported by the second clamping arm 319, the second clamping arm 319 from the first clamping arm 317, the coupling space 401 ) The first clamping arm 321 is rotated inward, and one end is supported by the first clamping arm 317 and the other end is supported by the third clamping arm 321 so that the third clamping arm 321 is the first clamping arm. It includes a second plate spring 603 to rotate from 317 to the inside of the coupling space (401).

As such, at least one of the clamping arms 105 of the upper extension piece 313 and the lower extension piece 315 and the plurality of clamping arms 105 formed on the upper and lower portions of the clamping arm 105 is rotated inside the coupling space 401. By providing an elastic member that provides an elastic force, the present invention can prevent the container from flowing to the upper and lower portions when the clamping arm 105 clamps the container, so that the container can be stably raised, lowered, rotated, and transported.

On the other hand, referring to Figures 7 and 8, the clamping unit 107 according to another embodiment of the present invention, the driving unit for rotating at least one clamping arm 105 into the coupling space 401 to which the container is coupled; It is configured to further include.

Referring to FIG. 7, the driving unit may be a driving motor 701 that rotates the clamping arm 105 into the coupling space 401 by applying a rotational force to the clamping arm 105.

Here, the driving motor 701 may rotate the clamping arm 105 into the coupling space 401 through the power transmission unit 703, which is provided in the driving motor 701 The first power transmission unit 705 provided with the first gear 703 at the end and the plurality of clamping arms 105 are hinged to the adjacent clamping arms 105 so as to be rotated and engaged with the first gear 703 to rotate When the second gear 707 is provided and the first gear 703 is rotated, the second power transmission unit 709 rotates the hinged coupling clamping arm 105.

Here, the second power transmission unit 709 hinge-couples the first clamping arm 317 and the second clamping arm 319, and hinges the first clamping arm 317 and the third clamping arm 321. In this case, when the first clamping arm 317 and the second clamping arm 319 are hinged, the rotational force is transmitted from the first power transmission unit 317 to receive the second clamping arm from the first clamping arm 317. Rotate (319).

Then, the second power transmission unit 709 receives the rotational force from the first power transmission unit 705 when the first clamping arm 317 and the third clamping arm 321 are hinged, and the first clamping arm 317 ), the third clamping arm 321 is rotated.

On the other hand, referring to FIG. 8, the driving unit applies a pneumatic or hydraulic (hereinafter, referred to as air/hydraulic) to the clamping arm 105 to rotate the clamping arm 105 into the coupling space 401, or a hydraulic device ( It may be hereinafter referred to as "air/hydraulic device".

The air/hydraulic device 801 rotates any of the clamping arms 105 among the plurality of clamping arms 105 by applying air/hydraulic pressure through the supply passage 803.

On the other hand, in the case of the above-described driving unit, the user can control the one or more clamping arms 105 to be rotated in one direction or in the other direction by manipulating the control unit 111.

Meanwhile, as described above, when the clamping unit 107 includes a driving unit, a sensor unit 901 that senses the weight or volume of the container and outputs the container information i1; And a control unit 903 that outputs a driving control signal s1 so that the driving unit is driven to pressurize the container when the container information i1 falls below a preset value.

The sensor unit 901 senses the weight or volume of the container and supplies the container information i1 to the control unit 903, which is, for example, the inner surface or the lower extension piece of the clamping arm 105 ( 315).

The control unit 903 receives the container information i1 from the sensor unit 901 and outputs a driving control signal s1 when the container information i1 falls below an initial set value.

That is, when the user inputs the initial container setting information i2 through the control unit 111 before the operation, and the container information i1 supplied from the sensor unit 901 during operation falls below the container setting information i2 The driving unit is driven to output a driving control signal s1 to pressurize the container.

Of course, here, the control unit 903 receives the control signal cs input through the operation unit of the control unit 111, and controls the driving units 701 and 801 so that one or more clamping arms 105 enter the coupling space 401. It can be rotated or rotated in the opposite direction.

In addition, the control unit 903 receives the control signal cs input through the operation unit of the control unit 111, so that the container is rotated while being raised or lowered or inverted up and down, the driving unit 113 or the driving motor 305 Can be controlled.

As described above, according to an embodiment of the present invention, the container is made of a plurality of joints so as to rotate with each other, and a plurality of clamping arms are provided on the upper side or the lower side to form a bending preventing piece that is in contact with or jammed with the container. , It has the effect of stably gripping the general container in the form of a cylinder without a separate protruding part so as not to deviate in the vertical direction, so that the contents can be easily introduced to the target point inside the container.

In addition, according to an embodiment of the present invention, even when the volume of the container is reduced, the container is not easily disengaged even when the volume of the container is reduced by pulling out the contents from the container by pressing the container to be in close contact with the outer surface of the container. It works.

In the above, even if all the components constituting the embodiments of the present invention are described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, if it is within the scope of the present invention, all of the components may be selectively combined and operated.

In addition, the terms "include", "consist" or "have" as described above mean that the component can be inherent, unless specifically stated otherwise, to exclude other components. It should not be interpreted as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as generally understood by a person skilled in the art to which the present invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted as being consistent with the meaning in the context of the related art, and are not to be interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the claims below, and all technical spirits within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

10: lifting device with clamping arm
101: lifting unit 103: transfer unit
105: clamping arm 107: clamping unit
109: main body 111: control unit
113: drive unit 201: guide unit
203: Ball screw 205: Drive motor
207: power transmission gear 209: guide coupling
211: screw coupling portion 213: drive motor
215: reduction gear 301: transfer body
303: support body 305: drive unit
307: first extension bar 309: second extension bar
311: rotating shaft 313: upper extension
315: lower extension 317: first clamping arm
319: second clamping arm 321: third clamping arm
323: extension 325: bent
401: Coupling space 501: Coil spring
503: first hinge 505: second hinge
507: first support 509: rotating coupling
511: elastic member coupling portion 513: through coupling portion
515: second support 601: plate spring
701: Drive motor 703: First gear
705: 1st power transmission unit 707: 2nd gear
709: 2nd power transmission unit

Claims (8)

A lifting unit with a guide portion formed along the height direction;
The outer surface of the container is coupled to the guide portion and moves up and down along the guide portion and is rotatably coupled to the transfer portion, but a plurality of hinges are coupled to each other to clamp the container and the volume of the container decreases. A clamping unit including a clamping arm that presses the container to be in close contact with the container;
Lifting device with a clamping arm, characterized in that it comprises a.
According to claim 1,
The clamping unit,
An elastic member having one end supported by one clamping arm and the other end supported by the other clamping arm to apply elastic force such that at least one of the clamping arms rotates inside the coupling space to which the container is coupled;
Lifting device provided with a clamping arm, characterized in that it further comprises.
According to claim 2,
The elastic member,
A lifting device provided with a clamping arm, characterized in that one end is a coil spring supported by one clamping arm and the other end supported by the other clamping arm.
According to claim 2,
The elastic member,
A lifting device provided with a clamping arm, characterized in that one end is a plate spring supported by one clamping arm and the other end supported by the other clamping arm.
According to claim 1,
The clamping unit,
A driving unit that rotates the at least one clamping arm into a coupling space to which the container is coupled;
Lifting device provided with a clamping arm, characterized in that it further comprises.
The method of claim 5,
The driving unit,
A lifting device provided with a clamping arm, characterized in that it is a driving motor that rotates the clamping arm into the coupling space by applying a rotational force to the clamping arm.
The method of claim 5,
The driving unit,
A lifting device with a clamping arm, characterized in that it is a pneumatic or hydraulic device that rotates the clamping arm into the coupling space by applying pneumatic or hydraulic pressure to the clamping arm.
The method of claim 5,
A sensor unit that senses the weight or volume of the container and outputs container information; And
A control unit for outputting a driving control signal so that the driving unit is driven to pressurize the container when the container information falls below a preset value;
Lifting device provided with a clamping arm, characterized in that it further comprises.

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