JP2013193860A - Intermeshing chain type lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intermeshing chain type lifting device that not only lifts and lowers a first lifted portion, but also lifts and lowers a second lifted portion with the use of only one driving motor in the inverse relation with the first lifted portion, and has its structure simplified.SOLUTION: There is provided an intermeshing chain type lifting device 100 characterized in that: a pair of intermeshing chains 110 transmit power of a driving motor 150 to one of a first lifted portion 140 and a second lifted portion 180, at least the one of a first lift guide 120 and the second lifted portion 140 is connected to at least one of a second lift portion 160 and the second lifted portion 180 by a line mechanism 190; and the link mechanism 190 is arranged such that a moving direction of the second lifted portion 180 and a moving direction of the first lifted portion 140 are in opposite-direction relation.

Description

  The present invention relates to a meshing chain lifting device that is used in a manufacturing facility in various manufacturing fields, a transport facility in the transportation field, a nursing facility in the medical welfare field, a stage facility in the art field, and the like so as to drive a lifted portion up and down.

  2. Description of the Related Art Conventionally, a first elevating mechanism that guides a first elevating part by elevating with a first elevating guide, and a second elevating mechanism that is arranged in parallel with the first elevating mechanism and guided in the elevating direction by a second elevating guide. An interlocking chain type lifting device having a second lifting mechanism that lifts and lowers a portion to be lifted is known (for example, Patent Document 1).

The first elevating guide includes a first swing arm and a second swing arm that engages with the first swing arm, and the first swing arm and the second swing arm swing. However, the first raised / lowered part was guided so as to move substantially in parallel in the raising / lowering direction.
Similar to the first lifting guide, the second lifting guide includes a third swing arm and a fourth swing arm that engages with the third swing arm, and the third swing arm and the fourth swing guide. The second elevating part is guided so as to move substantially in the ascending / descending direction while the arm swings.

Further, the first elevating mechanism is provided with a first drive motor and a pair of first meshing chains, and the power of the first drive motor is connected to one end of the first meshing chain. It was comprised so that it might transmit to a 1st to-be-lifted part.
Similarly, the second elevating mechanism is provided with a second drive motor and a pair of second meshing chains, and the pair of second meshing chains is connected to one end of the second meshing chain for the power of the second drive motor. It was comprised so that it might transmit to the 2nd to-be-lifted part.

JP 2006-137526 A

  However, the conventional meshing chain type lifting device described above has a structure in which the first lifting mechanism and the second lifting mechanism are independently provided with the first and second drive motors and a plurality of control units corresponding thereto. Therefore, there is a problem that the structure is complicated in place of the simple lifting operation when the second lifted portion is lifted up and down simply by the reverse lift relationship with respect to the lift of the first lifted portion.

  Therefore, the present invention solves the problems of the prior art as described above, that is, the object of the present invention is not only to raise and lower the first raised / lowered portion by one drive motor but also to second raised / lowered. It is to provide a meshing chain type lifting device in which the portion moves up and down in a reverse relation to the first lifted portion and simplifies the structure.

  According to the first aspect of the present invention, the first elevating part is guided by the first elevating guide comprising the first oscillating arm and the second oscillating arm engaged with the first oscillating arm in the elevating direction. A second lifting guide comprising a first lifting mechanism that moves up and down, and a third swinging arm that is arranged in parallel with the first lifting mechanism and that engages with the third swinging arm, in the lifting direction. A meshing chain type lifting device having a second lifting mechanism that guides and raises and lowers the second lifted portion and a pair of meshing chains that transmit and drive the power of a drive motor, and the pair of meshing chains are the drive The power of the motor is transmitted to one of the first lifted part and the second lifted part, and at least one of the first lift guide and the first lifted part is at least one of the second lift guide and the second lifted part. It is connected to one side by a link mechanism and the Click mechanism, by being arranged in relation to the movement direction of the second object lifting unit in a first movement direction and the opposite direction of the lifting unit, which solves the problems described above.

  According to the second aspect of the present invention, in addition to the configuration of the meshing chain type lifting device described in the first aspect, one end side of the link bar of the link mechanism is lifted and lowered between the first lifting mechanism and the second lifting mechanism. The link bar is connected to the first lifted part slidably in the mechanism juxtaposed direction, and the other end of the link bar is connected to the second lifted part slidable in the lift mechanism juxtaposed direction. However, the above-mentioned problem is further solved by being pivotally supported so as to be swingable around one end and the other end of the link bar.

  According to the third aspect of the present invention, in addition to the configuration of the meshing chain type lifting device described in the first aspect, the first lifting guide includes a first intermediate portion and a second swinging arm of the first swinging arm. Of the first swing arm is pivotally engaged with the first intermediate shaft, and one end of the first swing arm is swingably connected to the first lifted portion, and the other end of the first swing arm The side is connected to the first base of the first lifting mechanism so as to be slidable and swingable in the direction in which the first lifting mechanism and the second lifting mechanism are juxtaposed, and one end of the second swinging arm is swingable. To the first base, and the other end of the second swing arm is connected to the first lifted part so as to be slidable and swingable in the direction in which the lift mechanism is juxtaposed. The third intermediate portion of the third swing arm and the fourth intermediate portion of the fourth swing arm are rotatably engaged by the second support shaft, and one end side of the third swing arm is swung. The other end of the third swing arm is connected to the second base of the second lift mechanism so as to be slidable and swingable in the direction in which the lift mechanism is arranged. One end side of the arm is swingably connected to the second base, and the other end side of the fourth swing arm is connected to the second lifted part so as to be slidable and swingable in the direction in which the lifting mechanism is juxtaposed. The other end side of the first swing arm is disposed to face the other end side of the third swing arm, and one end side of the link bar of the link mechanism is the other end side of the first swing arm. And the other end side of the link bar is connected to the other end side of the third swing arm, thereby further solving the above-described problem.

  The meshing chain type lifting device of the present invention is guided by a first lifting guide comprising a first swinging arm and a second swinging arm engaged with the first swinging arm in the lifting direction. The first elevating mechanism for elevating and lowering the first elevating mechanism with a second elevating guide comprising a third oscillating arm and a fourth oscillating arm which is arranged in parallel with the first elevating mechanism and engages with the third oscillating arm. The second elevating mechanism that elevates and lowers the second elevating part and the pair of meshing chains not only can transmit and drive the power of the drive motor but also have the following unique characteristics: The effect of can be produced.

According to the meshing chain type lifting device of the invention of claim 1, the pair of meshing chains transmit the power of the drive motor to one of the first lifted portion and the second lifted portion, and the first lift guide and At least one of the first lifted parts is connected to at least one of the second lift guide and the second lifted part by a link mechanism, and this link mechanism changes the moving direction of the second lifted part to the first lifted part. Since the power of the first lifted / lowered portion that moves up and down is transmitted to the second lifted / lowered portion by being arranged in a relationship opposite to the moving direction of the first portion, the first lifted / lowered portion with one drive motor As well as elevating and lowering, the second raised and lowered portion can be raised and lowered in the reverse relationship with the first raised and lowered portion, and the structure can be simplified.
In addition, when the first lifted part and the second lifted part are raised when the first lifted part is lifted and the second lifted part is lifted, the first lifted part and the second lifted part are raised. Since the weight of the load placed on the other of the two lifted parts acts as a thrust that raises one of the first lifted part and the second lifted part, the energy consumption of the drive motor can be reduced. .

According to the meshing chain type lifting device of the invention according to claim 2, in addition to the effect produced by the invention according to claim 1, one end side of the link bar of the link mechanism is connected to the first lifting mechanism and the second lifting mechanism. The other end side of the link bar is slidably connected in the elevating mechanism side-by-side direction and is connected to the second elevating part slidably in the elevating mechanism side-by-side direction. Since the link bar is pivotally supported around one end and the other end of the link bar, when the first lifted portion moves to one of the lifts, one end of the link bar moves to the same side and the link Since the other end of the bar moves to the opposite side, the power of one movement of the first lifted / lowered part is transmitted to the second lifted / lowered part as the power of the other lifted / lowered part. Alternately elevating and lowering the lifted part and the second lifted part Kill.
Further, when the swing center of the link bar is deviated from the center of the link bar, the so-called lever ratio is changed and the stroke of the other end of the link bar is changed with respect to the stroke of one end of the link bar. The stroke can be a desired stroke.

  According to the meshing chain type lifting device of the invention of claim 3, in addition to the effect of the invention of claim 1, the first lifting guide includes the first intermediate portion and the second swinging portion of the first swing arm. A second intermediate portion of the moving arm is pivotally engaged with the first support shaft, and one end side of the first swing arm is swingably connected to the first lifted portion. The other end is connected to the first base of the first lifting mechanism so as to be slidable and swingable in the direction in which the first lifting mechanism and the second lifting mechanism are juxtaposed, and the one end of the second swinging arm is swung. It is connected to the first base movably, and the other end of the second swing arm is connected to the first lifted part so as to be slidable and swingable in the direction in which the lift mechanism is juxtaposed. A third intermediate portion of the third swing arm and a fourth intermediate portion of the fourth swing arm are rotatably engaged by the second support shaft, and one end side of the third swing arm is swung by itself. And the other end of the third swing arm is connected to the second base of the second lift mechanism so as to be slidable and swingable in the direction in which the lift mechanism is arranged. One end side of the fourth swing arm is connected to the second base so as to be swingable, and the other end side of the fourth swing arm is connected to the second lifted part so as to be slidable and swingable in the direction in which the lift mechanism is juxtaposed. The other end side of the first swing arm is disposed opposite to the other end side of the third swing arm, and one end side of the link bar of the link mechanism is connected to the other end side of the first swing arm. Since the other end side of the bar is connected to the other end side of the third swing arm, when the first raised / lowered portion moves to one side of the raising / lowering, one end and the other end of the link bar move to one side of the raising / lowering mechanism juxtaposition direction. The power of one movement of moving up and down of the first lifted part is transmitted to the second lifted part as power of the other lift Is the reason, it is possible to lift a first object lifting unit and a second object lifting part alternately with a simple structure.

The perspective view which shows the meshing chain type raising / lowering apparatus of 1st Example of this invention. The front view of the meshing chain type raising / lowering apparatus of 1st Example of this invention. The perspective view of the meshing chain of the meshing chain type raising / lowering apparatus of 1st Example of this invention. The figure which shows operation | movement of the meshing chain type raising / lowering apparatus of 1st Example of this invention (in the middle of raising / lowering). The figure which shows operation | movement of the meshing chain type raising / lowering apparatus of 1st Example of this invention (elevation completion). The perspective view which shows the meshing chain type raising / lowering apparatus of 2nd Example of this invention. The front view of the meshing chain type raising / lowering apparatus of 2nd Example of this invention. The figure which shows operation | movement of the meshing chain type raising / lowering apparatus of 2nd Example of this invention (in the middle of raising / lowering). The figure which shows operation | movement of the meshing chain type raising / lowering apparatus of 2nd Example of this invention (elevation completion).

  According to the present invention, a first elevating / lowering unit that elevates and lowers a first raised / lowered part by guiding in a lifting direction by a first lifting / lowering guide including a first swinging arm and a second swinging arm engaged with the first swinging arm. A second guide that is provided in parallel with the first lifting mechanism and includes a third swinging arm and a fourth swinging arm that engages with the third swinging arm and that is guided in the lifting direction. In a meshing chain lifting device having a second lifting mechanism that lifts and lowers a lifted portion and a pair of meshing chains that lifts and lowers the power of a drive motor, the pair of meshing chains transmits the power of the drive motor to the first target. The at least one of the first elevating guide and the first elevating part is connected to at least one of the second elevating guide and the second elevating part by a link mechanism. This link mechanism is the second lifted Is arranged in a relationship opposite to the moving direction of the first raised / lowered portion, the first raised / lowered portion is not only raised / lowered by one drive motor, but the second raised / lowered portion is As long as it raises / lowers in the reverse relation to the lifted / lowered part and simplifies the structure, any specific embodiment may be used.

For example, one sprocket (not shown) for transmitting the power of the drive motor to the meshing chain may be disposed on both sides of the pair of meshing chains, or one on one side.
In addition, the meshing chain used in the meshing chain type lifting device of the present invention includes a pair of hook-shaped inner teeth spaced apart along the chain width direction and an outer side of the pair of hook-shaped inner teeth plates along the chain width direction. It suffices if the pair of hook-like external tooth plates are connected to each other in the longitudinal direction of the chain by a pair of front and rear connection pins, and the internal tooth plate and the external tooth plate can be formed only by the connection pins without arranging bushings. A plurality of meshing chains may be connected, or may be driven by engaging a drive sprocket with a bush or a roller loosely fitted to the bush.

The mesh chain used in the mesh chain type lifting device of the present invention may have a multi-row structure in which a plurality of inner link units made up of a pair of left and right inner tooth plates are connected in the chain width direction. It may have a column structure.
In addition, regarding the specific shapes of the internal chain plate and the external tooth plate of the meshing chain used in the meshing chain type lifting device of the present invention, the same type of plates facing each other are meshed and integrated to each other. Any shape may be used as long as it branches off after biting.
Further, the first elevating guide and the second elevating guide have at least two oscillating arms that engage with each other and guide the first elevating part and the second elevating part in the elevating direction while oscillating. As long as it is, the specific embodiment may be anything.

Below, the meshing chain type lifting apparatus 100 which is 1st Example of this invention is demonstrated based on FIG. 1 thru | or FIG.
Here, FIG. 1 is a perspective view showing a meshing chain lifting device 100 according to a first embodiment of the present invention, and FIG. 2 is a front view of the meshing chain lifting device 100 according to the first embodiment of the present invention. 3 is a perspective view of the pair of meshing chains 110 of the meshing chain type lifting apparatus 100 according to the first embodiment of the present invention. FIG. 4 is a perspective view of the first lifting mechanism A of the first lifting mechanism A from the state of FIG. FIG. 5 is a diagram illustrating a state in which the second lifted part 180 of the second lift mechanism B is lifted while the lift part 140 is lowered, and FIG. 5 is a diagram illustrating the first lifted part 140 of the first lift mechanism A from the state of FIG. It is a figure which shows a mode that the 2nd to-be-lifted part 180 of the 2nd raising / lowering mechanism B raises further while falling further.

  As shown in FIGS. 1 to 5, the meshing chain type lifting device 100 according to the first embodiment of the present invention includes a first swing arm 121 and a second swing arm that engages with the first swing arm 121. The first elevating mechanism A for elevating and lowering the first elevating part 140 by being guided in the elevating direction V by the first elevating guide 120 composed of 122, and the third swing arm 161 arranged in parallel with the first elevating mechanism A. A second elevating mechanism B that elevates and lowers the second elevating part 180 by guiding it in the elevating direction V by a second elevating guide 160 comprising a fourth oscillating arm 162 engaged with the third oscillating arm 161; It has a pair of meshing chains 110 that move up and down by transmitting the power of the drive motor 150.

Specifically, the meshing chain type lifting device 100 includes a first lifting mechanism A and a second lifting mechanism B provided in parallel with the first lifting mechanism A.
Among these, the 1st raising / lowering mechanism A is provided with the 1st base 130, the drive motor 150, the 1st to-be-lifted part 140, the 1st raising / lowering guide 120, and a pair of meshing chain 110.
The first base 130 is provided below the meshing chain lifting device 100 so as to be in contact with the installation surface G, and the drive motor 150 is disposed on the first base 130.
The first raised / lowered portion 140 is provided so as to move in the ascending / descending direction V with respect to the first base 130 upon receiving power by placing a load or a person on the upper surface.

The first elevating guide 120 includes a first swing arm 121 and a second swing arm 122, and the first intermediate portion 121 c of the first swing arm 121 and the second swing arm 122. 2 intermediate part 122c is engaged with the 1st spindle 123 so that rotation is possible.
In this embodiment, two sets of the first swing arm 121 and the second swing arm 122 are arranged in parallel in the depth direction of FIG. 2 as an example, but have the same structure and are synchronized. Only one will be described, and the other will be omitted.

Furthermore, one end 121a side of the first swing arm 121 is swingably connected to the first lifted part 140, and the other end 121b side of the first swing arm 121 is connected to the first lift mechanism A and the second lift. It is connected to the first base 130 of the first lifting mechanism A so as to be slidable and swingable in the lifting mechanism juxtaposition direction H1 with the mechanism B.
Specifically, a first slider 132 is slidably provided on a first rail 131 that extends in the elevating mechanism juxtaposition direction H 1 in the first base 130, and other than the first swing arm 121. The end 121b is connected to the first slider 132 so as to be swingable.

Further, one end 122a side of the second swing arm 122 is swingably connected to the first base 130, and the other end 122b side of the second swing arm 122 is slidably swingable in the lifting mechanism juxtaposition direction H1. The first elevating part 140 is movably connected.
Specifically, the other end 122b of the second swing arm 122 is engaged with the first slide rail 141 extending in the lifting mechanism juxtaposition direction H1 in the first lifted portion 140, It becomes slidable in the first slide rail 141 and swingable with respect to the first lifted portion 140.
Therefore, the 1st raising / lowering guide 120 can guide the 1st to-be-lifted part 140 to the raising / lowering direction V. FIG.

Further, as shown in FIG. 3, the pair of meshing chains 110 are engaged with the disengaged portions 110H of the pair of meshing chains 110 when a drive sprocket (not shown) driven by the drive motor 150 rotates in one direction. The stiffened and meshed portion 110G that has been stiffened moves upward in the up-and-down direction.
On the other hand, when the drive sprocket (not shown) rotates in the opposite direction, the rigidly engaged portions 110G of the pair of engagement chains 110 move downward in the up-and-down direction and are disengaged, and the disengaged portions 110H. Are configured to move in the horizontal direction H2, for example.

Here, the detail of a pair of meshing chain 110 is demonstrated using FIG.
As shown in FIG. 3, the pair of meshing chains 110 used in the meshing chain type lifting device 100 according to the present embodiment includes a meshing chain 110L and a meshing chain 110R.
The meshing chains 110 </ b> L and 110 </ b> R include an inner link unit formed by press-fitting a pair of front and rear bushes 114 to hook-like inner teeth plates 111 and 111 that are spaced apart from each other along the chain width direction W. A plurality of hook-shaped external tooth plates 112, 112 arranged on the outermost side are connected in the longitudinal direction of the chain by a pair of front and rear connection pins 113, 113.

  Then, when a drive sprocket (not shown) driven by the drive motor 150 rotates in one direction, the hook-shaped internal teeth plate 111 of the meshing chain 110L and the hook-shaped internal teeth of the meshing chain 110R, which are the disengaged portions 110H, respectively. The plate 111 meshes with each other, and similarly, the hook-shaped external tooth plate 112 of the meshing chain 110L and the hook-shaped external tooth plate 112 of the meshing chain 110R mesh with each other, whereby the meshed portions 110G of the pair of meshing chains 110 become rigid. And move up and down.

  On the other hand, when the drive sprocket (not shown) rotates in the opposite direction, the stiffened meshed portion 110G moves downward in the up-and-down direction and is spread outward from the lower side in the up-and-down direction by a guide (not shown). Accordingly, the hook-shaped inner tooth plate 111 of the meshing chain 110L and the hook-shaped inner tooth plate 111 of the meshing chain 110R are disengaged. Similarly, the hook-shaped outer tooth plate 112 of the meshing chain 110L and the hook-shaped inner tooth plate 111 of the meshing chain 110R The disengagement with the external tooth plate 112 is disengaged, the disengaged portion 110H of the engagement chain 110R moves to one side in the horizontal direction, and the disengaged portion 110H of the engagement chain 110L moves to the other side in the horizontal direction.

Similarly to the first lifting mechanism A, the second lifting mechanism B includes a second base 170, a second lifted part 180, and a second lifting guide 160.
Here, the difference from the first lifting mechanism A is that the second lifting mechanism B is not provided with the drive motor 150 and the pair of meshing chains 110.
Similar to the first base 130, the second base 170 is provided below the meshing chain lifting device 100 so as to contact the installation surface G.

Similar to the first raised / lowered portion 140, the second raised / lowered portion 180 is provided so as to move in the raising / lowering direction V with respect to the second base 170 by receiving a power by placing a load or a person on the upper surface. .
Similarly to the first lifting guide 120, the second lifting guide 160 has a third swing arm 161 and a fourth swing arm 162, and the third intermediate portion 161c of the third swing arm 161 and The fourth intermediate portion 162 c of the fourth swing arm 162 is rotatably engaged with the second support shaft 163.
In this embodiment, two sets of the third swing arm 161 and the fourth swing arm 162 are arranged in parallel in the depth direction of FIG. 2 as an example, but have the same structure and are synchronized. Only one will be described, and the other will be omitted.

Furthermore, one end 161a side of the third swing arm 161 is swingably connected to the second lifted portion 180, and the other end 161b side of the third swing arm 161 is slidable in the lifting mechanism juxtaposition direction H1. Is swingably connected to the second base 170 of the second lifting mechanism B.
Specifically, the second slider 172 is slidably provided on the second rail 171 extending in the lifting mechanism juxtaposition direction H <b> 1 in the second base 170, and other than the third swing arm 161. The end 161b is swingably connected to the second slider 172.

Further, one end 162a side of the fourth swing arm 162 is swingably connected to the second base 170, and the other end 162b side of the fourth swing arm 162 is swingably slidable in the lifting mechanism juxtaposition direction H1. The second lifted part 180 is movably connected.
Specifically, the other end 162b of the fourth swing arm 162 is engaged with the second slide rail 181 extending in the lifting mechanism juxtaposition direction H1 in the second lifted portion 180, thereby The second slide rail 181 is slidable and swingable with respect to the second lifted portion 180.
Therefore, the second lifting guide 160 can guide the second lifted portion 180 in the lifting direction V.

Furthermore, in the present invention, at least one of the first elevating guide 120 and the first elevating part 140 is connected to at least one of the second elevating guide 160 and the second elevating part 180 by the link mechanism 190, and the link mechanism. 190 is disposed in such a relationship that the moving direction of the second lifted portion 180 is opposite to the moving direction of the first lifted portion 140.
In the first embodiment of the present invention, the first lifted / lowered part 140 and the second lifted / lowered part 180 are connected by a link mechanism 190.
As a result, the power of the first lifted / lowered part 140 that moves up and down is transmitted to the second lifted / lowered part 180, and the relationship between the lift of the first lifted / lowered part 140 and the lift of the second lifted / lowered part 180 is reversed. When raising one of the first lifted part 140 and the second lifted part 180, the weight of the load placed on the other of the first lifted part 140 and the second lifted part 180 is the first weight. It acts as a thrust force that raises one of the elevating unit 140 and the second elevating unit 180.

In the first embodiment of the present invention, one end 191a side of the link bar 191 of the link mechanism 190 is connected to the first lifted / lowered part 140 so as to be slidable in the lifting mechanism juxtaposition direction H1, and the other end 191b of the link bar 191 is provided. The side of the link bar 191 is slidable between one end 191a and the other end 191b of the link bar 191 so as to be slidable in the lifting mechanism juxtaposition direction H1. Is pivotally supported.
As a result, when the first raised / lowered part 140 moves to one of the raised / lowered parts, one end 191a of the link bar 191 moves to the same side and the other end 191b of the link bar 191 moves to the opposite side, and the first raised / lowered part 140 The power of one of the up and down movements is transmitted to the second lifted part 180 as the power of the other up and down movements.

Specifically, the first elevating / lowering part 140 is formed with a first elongated hole part 142 extending in the elevating mechanism juxtaposition direction H1.
The first protrusion 191aa formed at one end 191a of the link bar 191 enters the first elongated hole portion 142, so that the one end 191a side of the link bar 191 is slidable in the lifting mechanism juxtaposition direction H1. It is connected to the lifted part 140.
Similarly, the second elevating part 180 is formed with a second elongated hole part 182 extending in the elevating mechanism juxtaposition direction H1.

The second protrusion 191ba formed on the other end 191b of the link bar 191 enters the second elongated hole 182 so that the other end 191b side of the link bar 191 can slide in the lifting mechanism juxtaposition direction H1. The second lifted part 180 is connected.
Further, a central portion 191c between the one end 191a and the other end 191b of the link bar 191 is supported by the support portion 192 so as to be swingable.
In this embodiment, the link bar 191, the first elongated hole portion 142, and the second elongated hole portion 182 are arranged in parallel in the depth direction of FIG. 2 as an example, but have the same structure. Since they are synchronized, only one will be described, and the other will be omitted.

Then, the raising / lowering relationship of the 1st to-be-lifted part 140 and the 2nd to-be-lifted part 180 is demonstrated.
As shown in FIG. 4, when the drive motor 150 is driven from the state shown in FIG. 2, the rigidly engaged portions 110G of the pair of engagement chains 110 move downward in the up-and-down direction and are disengaged to branch in the horizontal direction H2. And move each.
Then, the first elevating / lowering part 140 is lowered and the link bar 191 is rotated counterclockwise in FIG. 4 so that the power accompanying the movement of the first elevating / lowering part 140 is transmitted to the second elevating / lowering part 180. As a result, the second lifted portion 180 rises.

As shown in FIG. 5, when the drive motor 150 is further driven from the state of FIG. 4, the rigidly engaged portions 110G of the pair of engagement chains 110 are further moved downward in the ascending / descending direction and disengaged. The detached part 110H branches in the horizontal direction H2 and further moves respectively.
Then, the first raised / lowered portion 140 is further lowered, and the link bar 191 is further rotated counterclockwise in FIG. The second lifted portion 180 is further raised.
When the drive motor 150 stops, the lowering of the first raised / lowered portion 140 stops and the rising of the second raised / lowered portion 180 stops.

  As described above, the first elongated hole portion 142 and the second elongated hole portion 182 are provided, and both ends (191a, 191b) of the link bar 191 are arranged in parallel with the lifting mechanism with respect to the first lifted portion 140 and the second lifted portion 180. By being provided slidably in the installation direction H1, the linear movement of the first lifted / lowered part 140 can be converted into a swinging motion of the link bar 191 and further converted into a linear motion of the second lifted / lowered part 180.

In addition, by driving the drive motor 150 in the direction opposite to that when the first lifted part 140 is lowered, the first lifted part 140 is raised and the second lifted part 180 is lowered from the state shown in FIG. Thus, the state shown in FIG. 2 can be obtained.
In the present embodiment, the first protrusion 191aa and the second protrusion 191ba are formed on the link bar 191 side, and the first elongated hole 142 and the second protrusion 191ba are formed on the first lifted part 140 and the second lifted part 180 side. Although the 2 long hole part 182 was formed, the reverse structure may be sufficient.
That is, a long hole portion may be formed on the link bar 191 side, and a protrusion may be formed on the first lifted portion 140 and the second lifted portion 180 side.

Further, if the support part 192 changes the position supported by the link bar 191 as necessary and the swing center of the link bar 191 is biased with respect to the center of the link bar 191, the so-called lever ratio changes and the link bar 191 changes. The stroke of the other end 191b of the link bar 191 changes with respect to the stroke of the one end 191a.
That is, the lifting stroke of the second lifted portion 180 can be made longer or shorter than the lifting stroke of the first lifted portion 140.

  In the meshing chain type lifting device 100 according to the first embodiment obtained in this way, the pair of meshing chains 110 causes the power of the drive motor 150 to be applied to one of the first lifted portion 140 and the second lifted portion 180. And at least one of the first lift guide 120 and the first lifted / lowered part 140 is connected to at least one of the second lift guide 160 and the second lifted / lowered part 180 by the link mechanism 190, and the link mechanism 190 By arranging the moving direction of the second raised / lowered portion 180 in the reverse direction to the moving direction of the first raised / lowered portion 140, the first raised / lowered portion 140 is moved up and down by one drive motor 150. In addition, the second lifted portion 180 can be lifted and lowered in the reverse relationship with the first lifted portion 140 and the structure can be simplified, and the drive motor 150 can be simplified. It is possible to reduce the energy consumption.

  Further, one end 191a side of the link bar 191 of the link mechanism 190 is connected to the first lifted part 140 so as to be slidable in the lifting mechanism juxtaposition direction H1 of the first lifting mechanism A and the second lifting mechanism B, and the link bar 191. The other end 191b side of the link bar 191 is connected to the second lifted portion 180 slidably in the lifting mechanism juxtaposition direction H1, and the link bar 191 is centered between one end 191a and the other end 191b of the link bar 191. The first lifted part 140 and the second lifted part 180 can be lifted and lowered alternately with a simple structure, and the stroke of the second lifted part 180 is desired. The effect is enormous.

Next, an interlocking chain lifting apparatus 200 that is a second embodiment of the present invention will be described with reference to FIGS.
Here, FIG. 6 is a perspective view showing a meshing chain lifting device 200 according to a second embodiment of the present invention, and FIG. 7 is a front view of the meshing chain lifting device 200 according to the second embodiment of the present invention. FIG. 8 is a diagram illustrating a state in which the first lifted portion 240 of the first lifting mechanism A is lowered and the second lifted portion 280 of the second lifting mechanism B is lifted from the state of FIG. 9 is a diagram illustrating a state in which the first lifted portion 240 of the first lifting mechanism A is further lowered and the second lifted portion 280 of the second lifting mechanism B is further lifted from the state of FIG. 8.

  The meshing chain lift device 200 of the second embodiment is a link bar 291 that linearly moves the swinging link bar 191 of the link mechanism 190 of the meshing chain lift device 100 of the first embodiment. Since the elements are the same as those of the meshing chain lifting apparatus 100 of the first embodiment, detailed description of the common matters is omitted, and only the reference numerals in the 200 series having the lower two digits are attached.

  As shown in FIGS. 6 to 9, the meshing chain lift device 200 according to the second embodiment of the present invention includes a first swing arm 221 and a second swing arm engaged with the first swing arm 221. The first elevating mechanism A that elevates and lowers the first elevating part 240 by being guided in the elevating direction V by the first elevating guide 220 composed of 222, and the third swing arm 261 provided in parallel with the first elevating mechanism A. And a second elevating mechanism B that elevates and lowers the second elevating part 280 by guiding it in the elevating direction V by a second elevating guide 260 comprising a fourth oscillating arm 262 engaged with the third oscillating arm 261, It has a pair of meshing chains 210 that move up and down by transmitting the power of the drive motor 250.

Furthermore, at least one of the first lifting guide 220 and the first lifted / lowered part 240 is connected to at least one of the second lift guide 260 and the second lifted / lowered part 280 by the link mechanism 290, and the link mechanism 290 is 2 The moving direction of the lifted / lowered part 280 is arranged so as to be opposite to the moving direction of the first lifted / lowered part 240.
In the second embodiment of the present invention, the first lifting guide 220 and the second lifting guide 260 are connected by a link mechanism 290.

Specifically, the other end 221b side of the first swing arm 221 is disposed to face the other end 261b side of the third swing arm 261, and the one end 291a side of the link bar 291 of the link mechanism 290 is the first end. The other end 221 b of the first swing arm 221 is connected to the other end 221 b side, and the other end 291 b of the link bar 291 is connected to the other end 261 b of the third swing arm 261.
As a result, when the first lifted / lowered part 240 moves to one of the lifts / lowers, one end 291a and the other end 291b of the link bar 291 move to one of the lifting / lowering mechanism side-by-side direction H1. The power of the movement is transmitted to the second lifted part 280 as the power of the other movement.

Then, the raising / lowering relationship between the 1st to-be-lifted part 240 and the 2nd to-be-lifted part 280 is demonstrated.
As shown in FIG. 8, when the drive motor 250 is driven from the state of FIG. 7, the rigidly engaged portions 210G of the pair of engagement chains 210 move downward in the up-and-down direction and are disengaged to branch in the horizontal direction H2. And move each.
Then, the first raised / lowered portion 240 is lowered and the other end 221b of the first swing arm 221 slides toward the second raising / lowering mechanism B side in the raising / lowering mechanism juxtaposition direction H1. 2 Moves linearly toward the lifting mechanism B, and the other end 261b of the third swing arm 261 is pushed by the link bar 291 and slides in the same direction.
Thereby, the power accompanying the movement of the first lifted / lowered part 240 is transmitted to the second lifted / lowered part 280 and the second lifted / lowered part 280 is raised.

As shown in FIG. 9, when the drive motor 250 is further driven from the state of FIG. 8, the rigidly engaged portions 210G of the pair of engagement chains 210 further move downward in the up-and-down direction and are disengaged. The detached part (110H (see FIG. 3)) branches in the horizontal direction H2 and moves further.
Then, the first lifted part 240 is further lowered, and the link bar 291 further linearly moves in the right direction in FIG. 9, so that the power accompanying the movement of the first lifted part 240 is transferred to the second lifted part 280. As a result, the second lifted portion 280 further rises.
Then, when the drive motor 250 is stopped, the lowering of the first lifted / lowered portion 240 is stopped and the rise of the second lifted / lowered portion 280 is stopped.

  As described above, the first lifting arm 220 moves in the lifting mechanism juxtaposition direction H1 and the other end 221b side of the first swing arm 221 and the second lifting guide 260 moves in the lifting mechanism juxtaposition direction H1. By connecting the other end 261b side of the third swing arm 261, which is a location, with the link bar 291, the linear movement of the first lifted / lowered part 240 can be performed with a simpler structure than the first embodiment described above. Can be further converted into a linear motion of the second lifted portion 280.

  In the meshing chain type lifting device 200 according to the second embodiment obtained in this way, the first lifting guide 220 has the first intermediate portion 221c of the first swing arm 221 and the second of the second swing arm 222. The intermediate portion 222c is pivotally engaged with the first support shaft 223, and the one end 221a side of the first swing arm 221 is swingably connected to the first lifted portion 240, and the first swing arm 221 is connected. The other end 221b side of the first elevating mechanism A and the second elevating mechanism B is connected to the first base 230 of the first elevating mechanism A so as to be slidable and swingable in the elevating mechanism juxtaposed direction H1. One end 222a side of the movable arm 222 is swingably connected to the first base 230, and the other end 222b side of the second swing arm 222 is slidable in the lifting mechanism juxtaposition direction H1 so as to be swingable. The second elevating guide 260 is connected to the portion 240, The third intermediate portion 261c of the third swing arm 261 and the fourth intermediate portion 262c of the fourth swing arm 262 are rotatably engaged by the second support shaft 263, and the one end 261a side of the third swing arm 261 is engaged. Is connected to the second lifted portion 280 in a swingable manner, and the second base of the second lift mechanism B is slidably swingable in the lifting mechanism juxtaposition direction H1 on the other end 261b side of the third swing arm 261. 270, and one end 262a side of the fourth swing arm 262 is swingably connected to the second base 270, and the other end 262b side of the fourth swing arm 262 is slidable in the lifting mechanism juxtaposition direction H1. The first swing arm 221 is connected to the second lifted portion 280 so as to be swingable, and the other end 221b side of the first swing arm 221 is disposed to face the other end 261b side of the third swing arm 261, and the link One end 291 of the link bar 291 of the mechanism 290 The side is connected to the other end 221b side of the first swing arm 221 and the other end 291b side of the link bar 291 is connected to the other end 261b side of the third swing arm 261. The effect is enormous, such that the elevating part 240 and the second elevating part 280 can be raised and lowered alternately.

100, 200 ... meshing chain type lifting device 110, 210 ... pair of meshing chains 110G, 210G ... meshed part 110H ... meshed part 110L ... meshing chain 110R ... meshing chain 111 ... Hook-shaped inner tooth plate 112 ... Hook-like outer tooth plate 113 ... Connecting pin 114 ... Bush 120, 220 ... First lifting guide 121, 221 ... First swing arm 121a, 221a ... one end 121b, 221b (of the first swing arm) ... the other end 121c, 221c (first swing arm) ... the first intermediate part 122, 222 ... second swing Moving arms 122a, 222a ... one end 122b (of the second swing arm), 222b ... the other end 122c (of the second swing arm), 22c ... 2nd intermediate part 123, 223 ... 1st spindle 130, 230 ... 1st base 131, 231 ... 1st rail 132, 232 ... 1st slider 140, 240 ... First elevating / lowering parts 141, 241 ... first slide rail 142 ... first elongated hole (first embodiment)
150, 250 ... drive motor 160, 260 ... second lifting guide 161, 261 ... third swing arm 161a, 261a ... one end 161b, 261b (of the third swing arm) ... Other end 161c, 261c (third swing arm) ... Third intermediate portion 162, 262 ... Fourth swing arm 162a, 262a ... One end 162b, 262b (fourth swing arm) .. Other ends 162c, 262c (fourth swing arm) ... fourth intermediate parts 163, 263 ... second support shafts 170, 270 ... second bases 171, 271 ... second rail 172, 272 ... 2nd slider 180, 280 ... 2nd lifted part 181, 281 ... 2nd slide rail 182 ... 2nd long hole part (1st Example)
190, 290 ... link mechanism 191, 291 ... link bar 191a, 291a ... one end 191aa (of link bar) ... first protrusion (first embodiment)
191b, 291b ... the other end 191ba (of the link bar) ... second protrusion (first embodiment)
191c... Central part (first embodiment)
192: Supporting part (first embodiment)
A: First elevating mechanism B: Second elevating mechanism G: Installation surface H1: Elevating mechanism juxtaposition direction H2: Horizontal direction V: Elevating direction

Claims (3)

A first elevating mechanism that elevates and lowers the first raised / lowered part by guiding in the elevating direction by a first elevating guide composed of a first oscillating arm and a second oscillating arm engaged with the first oscillating arm; The second lifted portion is guided in the lifting direction by a second lifting guide that is provided in parallel with the first lifting mechanism and includes a third swinging arm and a fourth swinging arm that engages with the third swinging arm. In a meshing chain type lifting device having a second lifting mechanism for lifting and lowering and a pair of meshing chains for lifting and lowering by transmitting the power of a drive motor,
The pair of meshing chains transmit the power of the drive motor to one of the first lifted part and the second lifted part;
At least one of the first elevating guide and the first elevating part is connected to at least one of the second elevating guide and the second elevating part by a link mechanism, and the link mechanism is connected to the second elevating part. The meshing chain type lifting device is arranged in such a manner that the moving direction is opposite to the moving direction of the first lifted portion.   One end side of the link bar of the link mechanism is connected to the first lifted portion so as to be slidable in the direction in which the first lifting mechanism and the second lifting mechanism are juxtaposed, and the other end side of the link bar is connected to the lifting / lowering mechanism. It is connected to the second raised / lowered part so as to be slidable in the mechanism juxtaposition direction, and the link bar is pivotally supported so as to be swingable between one end and the other end of the link bar. The meshing chain type lifting device according to claim 1, wherein The first elevating guide engages the first intermediate portion of the first swing arm and the second intermediate portion of the second swing arm so as to be rotatable about a first support shaft, One end side is swingably connected to the first lifted portion, and the other end side of the first swing arm is slidable and swingable in the direction in which the first lift mechanism and the second lift mechanism are juxtaposed. Connected to the first base of the first lifting mechanism, one end of the second swing arm is swingably connected to the first base, and the other end of the second swing arm is slidable in the direction in which the lift mechanism is juxtaposed Is connected to the first raised / lowered part so that it can swing freely,
The second elevating guide engages the third intermediate portion of the third swing arm and the fourth intermediate portion of the fourth swing arm so as to be rotatable about the second support shaft, One end side is swingably connected to the second lifted portion, and the other end of the third swing arm is connected to the second base of the second lift mechanism so as to be slidable and swingable in the direction in which the lift mechanism is juxtaposed. One end side of the fourth swing arm is swingably connected to the second base, and the other end side of the fourth swing arm is slidable and swingable in the direction in which the lift mechanism is juxtaposed. Connected,
The other end side of the first swing arm is disposed to face the other end side of the third swing arm, and one end side of the link bar of the link mechanism is the other end side of the first swing arm. The mesh chain type lifting device according to claim 1, wherein the other end side of the link bar is connected to the other end side of the third swing arm.

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