JP2013036515A - Meshing chain unit for lifting drive - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide meshing chain units for lifting drive that makes a pair of chains support themselves, avoids the deterioration of meshing accuracy between link plates and improves buckling strength.SOLUTION: In the meshing chain units 110 for lifting drive, a plurality of attachment plates 116A for regulating buckling at one side and a plurality of attachment plates 116B for regulating buckling at the other side are arranged along in a longitudinal chain direction so to be each added on outer sides of hook-like external teeth plates 113A, 113B included in each of a pair of meshing chains 111A, 111B.

Description

  The present invention is a lifting device incorporated in a driving device that lifts and lowers a driven object with respect to an installation surface for use in manufacturing equipment in various manufacturing fields, transport equipment in the transportation field, nursing care equipment in the medical and welfare field, stage equipment in the art field, etc. The present invention relates to a driving meshing chain unit.

2. Description of the Related Art Conventionally, there is one that rotates a drive sprocket engaged with a meshing chain to raise and lower a pair of meshing chains (for example, see Patent Document 1).
As shown in FIG. 8, the meshing chain used in the lifting device described above is in a state where the flat plate end surfaces 213 </ b> S facing the opposite side of the plate meshing surface of the link plate 213 are in contact with each other obliquely with respect to the lifting direction. The driven body 220 such as a load support member is driven to move up and down.

Japanese Patent Laid-Open No. 11-278797 (Claims, FIG. 1)

However, in the above-described lifting device, as shown in FIG. 8, when the pair of meshing chains 211, 211 are meshed with each other and lifted, a horizontal component force F of the load is generated to generate a pair of meshing chains 211, 211. Therefore, it is difficult to transport the driven body 220 to a high position within a certain chain length by making the pair of meshing chains 211 and 211 stand upright in the vertical direction, that is, in the vertical direction. In addition, a gap is generated between the link plates 213 that mesh with each other to lower the meshing accuracy, and the load applied to the link plate 213 is made non-uniform so that the buckling strength of the pair of meshing chains 211 and 211 is reduced. There was a problem of making it difficult to improve.
In addition, in the state where the load is applied to the pair of meshing chains 211 and 211 that have been tilted from the upper side to the lower side in the vertical direction to increase the horizontal component force F of the load, the inclination of the pair of meshing chains 211 and 211 is increased. Since the buckling strength is further reduced by further increasing it, a work load is generated at the time of assembling the apparatus in which a reinforcing tool for reinforcing the pair of meshing chains 211 and 211 is installed, and the number of parts of the apparatus is increased. In addition, in order to ensure a predetermined buckling strength, there is a problem in that the size of the meshing chain 211, that is, the cross-sectional area of the pair of meshing chains 211 and 211 that are meshed with each other is increased.

  Therefore, the technical problem to be solved by the present invention, that is, the object of the present invention is to convey a driven body to a high position by allowing a pair of meshing chains to stand straight along the vertical direction and to engage between link plates. In order to avoid a decrease in alignment accuracy and to install a reinforcing tool that reinforces a pair of meshing chains, an increase in work load and an increase in the number of parts and breakage of a pair of meshing chains integrated with each other An object of the present invention is to provide an ascending / descending drive meshing chain unit that improves the buckling strength without increasing the area.

  According to the first aspect of the present invention, a pair of hook-like internal tooth plates spaced apart from each other along the chain width direction and a hook-like external tooth plate arranged adjacent to each other outside the pair of hook-like internal tooth plates An ascending / descending drive engagement chain unit configured by connecting a plurality of connection chains in the longitudinal direction of a chain with a pair of connection pins, a pair of engagement chains arranged opposite to each other, integrated and integrated, and disengaged from each other and branched. A plurality of one-side bucklings each having a pair of front and rear buckling regulating surfaces that regulate buckling along opposing surfaces of the pair of meshing chains in a state where the pair of meshing chains are meshed with each other and integrated. A hook-like external tooth in which the restricting attach plate is arranged along the longitudinal direction of the chain and is included in one of the pair of meshing chains A pair of front and rear buckling regulating surfaces that are attached to the outside of the rate and regulate buckling along the opposing surfaces of the pair of meshing chains in a state where the pair of meshing chains mesh with each other and are integrated. A plurality of other side buckling restricting attachment plates provided respectively are arranged along the longitudinal direction of the chain and are respectively attached to the outer sides of the hook-shaped external tooth plates included in the other meshing chain of the pair of meshing chains. The plurality of hook-shaped external tooth plates in a state where the one-side buckling-restricting attachment plate and the other-side buckling-restricting attachment plate are integrated by meshing the pair of meshing chains with each other. The above-described problems are solved by shifting from each other along the longitudinal direction of the chain by a half pitch.

  According to a second aspect of the present invention, in addition to the configuration according to the first aspect, the one-side buckling-restricting attachment plate and the other-side buckling-restricting attachment plate are one meshing chain of the pair of meshing chains. In addition, the above-described problems are solved by being connected and fixed to the one meshing chain and the other meshing chain by connecting pins included in each of the other meshing chains.

  According to a third aspect of the present invention, in addition to the configuration according to the first or second aspect, each of the buckling restriction surfaces of the one side buckling restriction attachment plate and the other side buckling restriction attachment plate has The above-described problems are solved by extending the pair of meshing chains in a state of being meshed and integrated with each other.

  According to a fourth aspect of the present invention, in addition to the configuration according to any one of the first to third aspects, each of the one-side buckling-restricting attachment plate and the other-side buckling-restricting attachment plate is provided. The buckling restriction surfaces are formed along the plate surfaces of the one-side buckling restriction attachment plate and the other-side buckling restriction attachment plate in a state where the pair of meshing chains are meshed with each other and integrated. The problem mentioned above is solved by straddling the center line of the pair of meshing chains.

  According to a fifth aspect of the present invention, in addition to the configuration according to the fourth aspect, the one-side buckling regulating attachment plate is configured such that the pair of meshing chains are meshed with each other and integrated with each other. The above-described problems are solved by overlapping the two hook-shaped external tooth plates included in the meshing chain and adjacent in the longitudinal direction of the chain.

  According to a sixth aspect of the present invention, in addition to the configuration according to the fourth or fifth aspect, the other-side buckling-restricting attach plate meshes the pair of meshing chains with each other to be integrated. In the state, it is included in the one meshing chain and overlaps with two hook-shaped external tooth plates adjacent to each other in the longitudinal direction of the chain, thereby solving the above-described problem.

According to the raising / lowering driving meshing chain unit of the present invention according to claim 1, the pair of hook-shaped inner teeth plates that are spaced apart from each other along the chain width direction and the outer sides of the pair of hook-shaped inner teeth plates are disposed adjacent to each other. A plurality of hook-like external tooth plates connected in the longitudinal direction of the chain with a pair of front and rear connecting pins, and a pair of meshing chains are arranged opposite to each other and meshed to be integrated and separated from each other and branched off. In addition, the following unique effects can be achieved.
That is, according to the ascending / descending drive meshing chain unit according to the first aspect of the present invention, before and after the buckling is regulated along the opposing surfaces of the pair of meshing chains in a state where the pair of meshing chains are meshed with each other and integrated. A plurality of one-side buckling regulation attachment plates each having a pair of buckling regulation surfaces are arranged along the longitudinal direction of the chain and are included in one meshing chain of the pair of meshing chains. A pair of front and rear buckling regulating surfaces that regulate buckling along opposing surfaces of the pair of meshing chains in a state where the pair of meshing chains mesh with each other and are integrated with each other. A plurality of other side buckling restricting attachment plates are arranged along the longitudinal direction of the chain and are included in the other meshing chain of the pair of meshing chains. A plurality of one-side buckling-restricting attachment plates and a second-side buckling-restricting attachment plate that are attached to the outside of the hook-shaped external tooth plate, respectively, with a pair of meshing chains meshing with each other and integrated. Buckling of two one-side buckling regulating attachment plates adjacent to each other along the longitudinal direction of the chain by being offset from each other along the longitudinal direction of the chain by a half pitch of the plate pitch of the hook-shaped external tooth plate In order to bring the restricting surfaces into contact with the buckling restricting surfaces of the two other-side buckling restricting attachment plates, a pair of one engaging chain toward the other engaging chain along the opposing surfaces of the pair of engaging chains. A pair of meshes from the other meshing chain toward one meshing chain along the opposing surfaces of the pair of meshing chains The tilting of the pair of meshing chains is regulated in a state of being evenly opposed to the component force of the load that tilts the chain, and the pair of meshing chains are straightly self-supported along the vertical direction and covered to a high position. When assembling a device that transports the drive body and avoids a decrease in meshing accuracy between link plates such as hook-like inner tooth plates and hook-like outer tooth plates, and further installs a reinforcing tool that reinforces a pair of meshing chains The buckling strength can be improved without increasing the work load, increasing the number of parts, and increasing the cross-sectional area of the pair of meshing chains engaged with each other.

  According to the lifting drive meshing chain unit according to claim 2, in addition to the effect produced by the lifting drive meshing chain unit according to claim 1, the one side buckling regulating attachment plate and the other side buckling. The restricting attachment plate is connected and fixed to the one engagement chain and the other engagement chain by connection pins included in each of the one engagement chain and the other engagement chain of the pair of engagement chains. In order to make the entire pair of meshing chains including a plurality of one-side buckling-regulating attachment plates and a plurality of other-side buckling-regulating attachment plates in an integrated state by meshing the meshing chains with each other, A pair of meshes from one meshing chain toward the other meshing chain along opposing surfaces of the pair of meshing chains Higher in a state where the pair of meshing chains are made to stand upright along the vertical direction by further regulating the tilting of the chain and the tilting of the pair of meshing chains from the other meshing chain toward the one meshing chain. The driven body is transported to the position and the lowering accuracy of the interlocking between the link plates is avoided, and a reinforcing tool that reinforces the pair of interlocking chains is installed. It is possible to further improve the buckling strength without increasing the cross-sectional area of the pair of meshing chains that are meshed with each other.

  According to the lifting drive meshing chain unit according to claim 3, in addition to the effect produced by the lifting drive meshing chain unit according to claim 1 or 2, the one-side buckling restriction attachment plate and Each buckling restriction surface of the attachment plate for buckling restriction on the other side extends horizontally in a state where a pair of meshing chains mesh with each other so as to be integrated with each other. In order to reduce the horizontal component force by uniformly distributing the load acting on the pair of meshing chains toward the buckling restriction surfaces of the one side buckling restriction attachment plate and the other side buckling restriction attachment plate, A pair of meshes that are integrated with each other by increasing the work load at the time of assembling the device, increasing the number of parts, and meshing with each other. While further increasing the buckling strength of the pair of meshing chains without increasing the cross-sectional area of the chain, the driven body is transported to a high position in a state where the pair of meshing chains are standing independently along the vertical direction. It is possible to avoid a decrease in meshing accuracy between link plates such as hook-like inner tooth plates or hook-like outer tooth plates.

  According to the lifting / lowering engagement chain unit according to claim 4, in addition to the effect produced by the lifting / lowering engagement chain unit according to any one of claims 1 to 3, one side buckling The one-side buckling-regulating attachment plate and the other side in a state where the buckling-regulating surfaces of the regulating attachment plate and the other-side buckling-regulating attachment plate are integrated by meshing a pair of meshing chains with each other. One engagement chain along the plate surface of the one side and the other side buckling restriction attachment plate by straddling the center line of the pair of engagement chains along each plate surface of the buckling restriction attachment plate The load is distributed to the buckling restriction surface of the one side buckling restriction attachment plate on both sides of the center line of the pair of meshing chains from one to the other. In order to distribute and load the load on the buckling restriction surface of the other side buckling restriction attachment plate on both sides of the center line of the pair of meshing chains from the other meshing chain to the other meshing chain, A pair of meshes without increasing the work burden and assembling the parts together and increasing the cross-sectional area of the pair of mesh chains integrated with each other. While further improving the buckling strength of the pair of meshing chains along the opposite surfaces of the chain, the driven body is more accurately conveyed to a high position with the pair of meshing chains standing straight along the vertical direction. It is possible to further avoid a decrease in meshing accuracy between link plates such as hook-shaped inner tooth plates and hook-shaped outer tooth plates. .

  According to the lifting drive meshing chain unit according to claim 5, in addition to the effect exerted by the lifting drive meshing chain unit according to claim 4, the one-side buckling restriction attaching plate has a pair of meshing functions. In the state where the chain is meshed with each other and integrated, it is included in the other meshing chain and overlaps with two hook-shaped external tooth plates adjacent to each other in the longitudinal direction of the chain. Since the two hook-shaped external teeth plates are supported by the bending-restricting attachment plate, a reinforcing tool that reinforces the pair of meshing chains is installed. The pair of meshing chains are suspended by improving the buckling strength along the chain width direction without increasing the cross-sectional area of the pair of meshing chains integrated. Can be more accurately conveyed to the driven member to a high position in a state where the straight self-supporting along the direction.

  According to the lifting drive meshing chain unit according to claim 6, in addition to the effect exerted by the lifting drive meshing chain unit according to claim 4 or 5, the other side buckling restriction attachment plate However, when the pair of meshing chains are meshed with each other and integrated with each other, they are included in the one meshing chain and overlap with two hook-shaped external tooth plates adjacent to each other in the longitudinal direction of the chain. Since the two hook-shaped external teeth plates are supported by the other-side buckling-restricting attachment plate from the width direction, an increase in work load and an increase in the number of parts in assembling the apparatus in which a reinforcing tool for reinforcing a pair of meshing chains is installed And improve the buckling strength along the width direction of the chain without increasing the cross-sectional area of a pair of meshing chains that are meshed with each other and integrated. It can be conveyed driven body interlocking chain to a higher position in a state where the straight self-supporting in the vertical direction of more accurately.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective view of a meshing chain type lifting device employing a lifting drive meshing chain unit that is an embodiment of the present invention. The top view of the meshing chain type raising / lowering apparatus shown in FIG. The front view of the meshing chain type raising / lowering apparatus shown in FIG. FIG. 4 is a partially enlarged view of the vicinity of the drive sprocket and the meshing chain shown in FIG. 3. The perspective view which shows the disassembled assembly state of the meshing chain unit for raising / lowering drive which is one Example of this invention, and a disengagement state. The side view and front view of the meshing chain unit for a raising / lowering drive which is one Example of this invention. FIG. 7 is an enlarged plan view of an ascending / descending drive meshing chain unit viewed from the direction C in FIG. 6. The front view of the meshing chain unit for a raising / lowering drive which concerns on a comparative example.

  The raising / lowering driving engagement chain unit of the present invention includes a pair of front and rear buckling restriction surfaces for restricting buckling along opposing surfaces of the pair of engagement chains in a state where the pair of engagement chains are engaged with each other and integrated. A plurality of one-side buckling-restricting attachment plates provided respectively are arranged along the longitudinal direction of the chain and attached to the outside of the hook-shaped external tooth plate included in one of the pair of meshing chains. A plurality of other buckling regulation surfaces each having a pair of front and rear buckling regulation surfaces for regulating buckling along opposing surfaces of the pair of meshing chains in a state in which the pair of meshing chains are meshed with each other. Outside of the hook-shaped external tooth plate that is arranged along the longitudinal direction of the chain and is included in the other meshing chain of the pair of meshing chains Plate pitches of a plurality of hook-shaped external tooth plates, each attached, with one side buckling restriction attachment plate and the other side buckling restriction attachment plate meshing and integrating a pair of meshing chains And a pair of load components that cause the pair of meshing chains to be inclined from one meshing chain toward the other meshing chain along the opposing surfaces of the pair of meshing chains. Avoid breakage and damage of the attachment plate in a state where it is evenly opposed to the component force of the load that inclines the pair of meshing chains from the other meshing chain toward the one meshing chain along the opposing surface of the meshing chain. The tilting of the pair of meshing chains is restricted and the pair of meshing chains are straight and self-standing along the vertical direction. A device that conveys the driven body to the extent of avoiding a decrease in the meshing accuracy between the link plates such as the hook-like inner tooth plates and the hook-like outer tooth plates, and further reinforcing the pair of meshing chains. If the buckling strength is improved without increasing the work load at the time of assembly, increasing the number of parts, and increasing the cross-sectional area of a pair of meshing chains engaged with each other, the specific Any embodiment may be used.

Hereinafter, a meshing chain lifting device 100 that employs a lifting drive meshing chain unit 110 according to an embodiment of the present invention will be described with reference to the drawings.
Here, FIG. 1 is an overall perspective view of a meshing chain type lifting device employing a lifting chain meshing chain unit according to an embodiment of the present invention, and FIG. 2 is a diagram of the meshing chain type lifting device shown in FIG. 3 is a front view of the meshing chain lifting device shown in FIG. 1, FIG. 4 is a partially enlarged view of the vicinity of the driving sprocket and the meshing chain shown in FIG. 3, and FIG. FIG. 6 is a perspective view showing a disassembled assembled state and a disengaged state of the lifting / lowering engagement chain unit that is one embodiment of the present invention, and FIG. 6 is a side view of the lifting / lowering engagement chain unit that is one embodiment of the present invention. FIG. 7 is an enlarged plan view of the lifting / lowering driving engagement chain unit as seen from the direction C in FIG.

  First, as shown in FIG. 1, a meshing chain type lifting device 100 employing a lifting drive meshing chain unit 110 according to an embodiment of the present invention has a driven body 120 at an end of the lifting drive meshing chain unit 110. The driven body 120 is moved up and down along the vertical direction, that is, the vertical direction.

  As shown in FIGS. 1 to 4, the meshing chain type lifting device 100 includes a lifting drive meshing chain unit 110 having a pair of meshing chains 111A and 111B and a pair of meshing chains 111A and 111B branched from each other. A chain guide plate 130 provided with a chain storage groove 131 for guiding and storing, a chain guide groove 132 connected to the chain storage groove 131 to guide the pair of meshing chains 111A and 111B to a rigid position, and the chain The guide plate 130 is housed in a concave drive sprocket housing groove 133 that opens to the side of the meshing chain 111A and engages with the meshing chain 111A so that the pair of meshing chains 111A and 111B can be driven forward and backward. Driving sprocket 140 and the driving sprocket 140 The orthogonal gear 151 for supplying driving force to the bracket 140 and the driving source 150 including the driving motor 152 are provided as basic device configurations, and the rigid state of the pair of meshing chains 111A and 111B is maintained and at the same time the rigid direction D1 and branching The pair of meshing chains 111A and 111B are guided in the direction D2, and the driven body 120 is moved up and down.

  Furthermore, in the meshing chain type lifting device 100, as shown in FIG. 4, the drive sprocket housing groove 133 is opened to a pair of meshing chains 111A and 111B that are meshed with each other to be rigid. Since the occurrence of vertical movement (pulsation), vibration, noise, and speed fluctuation due to the chordal action between the driving sprockets 140 is avoided, the meshing chain type lifting device 100 is configured to vibrate the meshing chains 111A and 111B when driving the chain. The noise is further reduced and the chain drive is stabilized to smoothly mesh the pair of meshing chains 111A and 111B with each other so as to be independent.

Next, the raising / lowering driving meshing chain unit 110 according to the present embodiment will be described in detail with reference to FIGS.
As shown in FIGS. 1 to 5, the lifting drive meshing chain unit 110 according to the present embodiment includes a pair of hook-shaped internal teeth plates 112 </ b> A, 112 </ b> A and 112 </ b> B, 112 </ b> B that are spaced apart along the chain width direction W. A pair of front and rear connecting pins 114A, 114A, 114B, and 114B are connected to the hook-shaped outer teeth plates 113A, 113A, 113B, and 113B adjacent to the outside of the pair of hook-shaped inner teeth plates 112A, 112A, 112B, and 112B, respectively. A large number of chain chains 111A and 11B are connected to each other in the longitudinal direction of the chain.

  More specifically, the pair of meshing chains 111A and 111B are so-called chuck chains, and are in the longitudinal direction of the chain with respect to the hook-shaped inner teeth plates 112A and 112B and the hook-shaped inner teeth plates 112A and 112B. The hook-shaped external tooth plates 113A and 113B, and the hook-shaped internal tooth plates 112A and the hook-shaped internal tooth plates 112B are connected and fixed in the chain width direction W, and the connecting pins 114A and 114B are connected to each other. The bushes 115A and 115B are inserted into the hook-like inner tooth plates 112A and the hook-like inner tooth plates 112B while being deflected along the chain guide plate 130 from the branch direction D2 to the rigid direction D1. Hook-shaped external tooth plates 113A and hooks The outer teeth plates 113B mesh with each other and move up and down in a self-supporting manner, and while deflecting from the rigid direction D1 to the branching direction D2, the hook inner teeth plates 112A and the hook inner teeth plates 112B are mutually hooked. The external teeth plates 113A and the external hook plates 113B are disengaged and branched.

Next, a specific configuration of the configuration that is most characteristic of the above-described lifting drive meshing chain unit 110 according to the present embodiment will be described in more detail with reference to FIGS.
As shown in FIGS. 1 to 7, the lifting / lowering engagement chain unit 110 of this embodiment is
A pair of front and rear buckling regulating surfaces 116AS and 116AS that regulate buckling along the opposing surface S of the pair of meshing chains 111A and 111B in a state where the pair of meshing chains 111A and 111B are meshed with each other and integrated, respectively. A plurality of one-side buckling regulating attachment plates 116A provided are arranged along the longitudinal direction of the chain and outside the hook-shaped external tooth plate 113A included in one of the meshing chains 111A of the pair of meshing chains 111A and 111B. A pair of front and rear buckling controls that regulate buckling along the opposing surface S of the pair of meshing chains 111A and 111B in a state where the pair of meshing chains 111A and 111B are meshed and integrated with each other. A plurality of other side buckling regulating attachment plates 116BS each having a surface 116BS are provided. One side buckling restricting attachment plate arranged along the longitudinal direction of the screen and attached to the outside of the hook-shaped external tooth plate 113B included in the other meshing chain 111B of the pair of meshing chains 111A and 111B. 116A and the other side buckling regulating attachment plate 116B are a half pitch of the plate pitch P1 of the plurality of hook-shaped external teeth plates 113A, 113B in a state where the pair of meshing chains 111A, 111B are meshed with each other and integrated. They are offset from each other along the longitudinal direction of the chain by a pitch P2.
Thereby, the buckling regulating surfaces 116AS, 116AS of the two one side buckling regulating attachment plates 116A, 116A adjacent to each other along the chain longitudinal direction and the two other side buckling regulating attachment plates 116B, In order to bring the buckling restricting surfaces 116BS and 116BS of 116B into contact with each other, the raising / lowering driving engagement chain unit 110 is arranged along the opposing surface S of the pair of engagement chains 111A and 111B from one engagement chain 111A to the other engagement chain 111B. A pair of meshing chains 111A, 111B and a pair of meshing chains 111A, 111B along the opposing surface S of the pair of meshing chains 111A, 111B and the other meshing chain 111B toward one meshing chain 111A 111A and 111B against the component force of the load that tilts The pair of meshing chains 111A and 111B is prevented from tilting in a state of being opposed to each other, and the pair of meshing chains 111A and 111B are straightly self-supported along the vertical direction, and the driven body 120 is conveyed to a high position. Avoiding a decrease in meshing accuracy between the link plates such as the hook-shaped internal tooth plates 112A, the hook-shaped internal tooth plates 112B, the hook-shaped external tooth plates 113A, and the hook-shaped external tooth plates 113B, and a pair of meshes Increases the work load at the time of assembling the apparatus for installing the reinforcing tool for reinforcing the chains 111A and 111B, increases the number of parts, and increases the cross-sectional area of the pair of meshing chains 111A and 111B integrated with each other. The buckling strength is improved.

Further, in the lifting drive meshing chain unit 110, the one side buckling restricting attachment plate 116A and the other side buckling restraining attachment plate 116B include one meshing chain 111A of the pair of meshing chains 111A and 111B and the other meshing chain. The connecting pins 114A and 114B included in each of 111B are connected and fixed to one meshing chain 111A and the other meshing chain 111B.
Thus, a pair of meshes including a plurality of one-side buckling-restricting attachment plates 116A and a plurality of other-side buckling-restricting attachment plates 116B in a state where the pair of meshing chains 111A, 111B are meshed with each other and integrated. In order to make the entire chain an integral rigid body, the lifting drive meshing chain unit 110 has a pair of meshes along the opposing surface S of the pair of meshing chains 111A and 111B from one meshing chain 111A toward the other meshing chain 111B. Further restricting the tilting of the chains 111A and 111B and the tilting of the pair of meshing chains 111A and 111B from the other meshing chain 111B toward the one meshing chain 111A makes the pair of meshing chains 111A and 111B vertical. Higher position in a state of being self-supporting straight along the direction The driven body 120 is transported to the link plate and the meshing accuracy between the link plates is prevented from being lowered, and a reinforcing tool for reinforcing the pair of meshing chains 111A and 111B is installed. It is possible to further improve the buckling strength without increasing the cross-sectional area of the pair of meshing chains 111A and 111B integrated with each other.

Further, in the lifting drive meshing chain unit 110, the buckling regulation surfaces 116AS and 116BS of the one side buckling regulation attachment plate 116A and the other side buckling regulation attachment plate 116B respectively connect the pair of meshing chains 111A and 111B. It extends horizontally in a state of being meshed with each other and integrated.
Accordingly, the buckling of the one side buckling restricting attachment plate 116A and the other side buckling restricting attachment plate 116B is applied to the load acting on the pair of meshing chains 111A and 111B from the upper side to the lower side along the vertical direction. In order to uniformly distribute the regulating surfaces 116AS and 116BS to reduce the horizontal component force, the lifting drive meshing chain unit 110 installs a reinforcing tool that reinforces the pair of meshing chains 111A and 111B. A pair with a further improved buckling strength of the pair of meshing chains 111A, 111B without an increase in the number of parts and an increase in cross-sectional area of the pair of meshing chains 111A, 111B meshed together. In a state in which the meshing chains 111A and 111B are made to stand straight along the vertical direction. The driven body 120 is transported to a desired position and meshed between the link plates such as the hook-shaped internal tooth plates 112A, the hook-shaped internal tooth plates 112B, the hook-shaped external tooth plates 113A, and the hook-shaped external tooth plates 113B. A reduction in accuracy is avoided.

Further, in the lifting drive meshing chain unit 110, the buckling regulation surfaces 116AS and 116BS of the one side buckling regulation attachment plate 116A and the other side buckling regulation attachment plate 116B respectively connect the pair of meshing chains 111A and 111B. The centers of the pair of meshing chains 111A and 111B along the plate surfaces 116AP and 116BP of the one-side buckling-restricting attachment plate 116A and the other-side buckling-restricting attaching plate 116B in a state where they are meshed with each other. It straddles the line CL.
Thus, a pair of meshing chains 111A extends from one meshing chain 111A to the other meshing chain 111B along the plate surfaces 116AP and 116BP of the one side buckling regulation attaching plate 116A and the other side buckling regulation attaching plate 116B. , 111B on both sides of the center line CL of the 111B, a load is distributed on the buckling regulating surface 116AS of the one side buckling regulating attachment plate 116A, and a pair of meshes is formed from the other meshing chain 111B to the one meshing chain 111A. In order to disperse and load the buckling regulating surface 116BS of the other side buckling regulating attachment plate 116B on both sides of the center line CL of the chains 111A and 111B, the lifting drive meshing chain unit 110 has a pair of meshing chains 111A. , Install a reinforcement to reinforce 111B Opposing surfaces of the pair of meshing chains 111A and 111B without increasing the work load at the time of assembling the apparatus, increasing the number of parts, and increasing the cross-sectional area of the pair of meshing chains 111A and 111B integrated with each other. Further improve the buckling strength of the pair of meshing chains 111A and 111B along S, and make the pair of meshing chains 111A and 111B stand upright along the vertical direction to a higher position. And lowering the meshing accuracy between the link plates such as the hook-like inner tooth plates 112A, the hook-like inner tooth plates 112B, the hook-like outer tooth plates 113A, and the hook-like outer tooth plates 113B. It is like that.

Further, in the lifting drive meshing chain unit 110, the one side buckling restriction attaching plate 116A is included in the other meshing chain 111B in a state where the paired meshing chains 111A and 111B are meshed with each other and integrated. It overlaps with two hook-shaped external teeth plates 113B and 113B adjacent in the longitudinal direction of the chain.
Thus, since the two hook-shaped external teeth plates 113B and 113B are supported by the one-side buckling-restricting attachment plate 116A from the chain width direction W, the lifting drive meshing chain unit 110 has a pair of meshing chains 111A and 111B. In the chain width direction without increasing the work load at the time of assembling the apparatus for reinforcing the apparatus and increasing the number of parts and the cross-sectional area of the pair of meshing chains 111A and 111B integrated with each other. The driven body 120 is more accurately transported to a higher position in a state where the buckling strength along W is improved and the pair of meshing chains 111A and 111B are made to stand straight along the vertical direction.

Further, in the raising / lowering driving meshing chain unit 110, the other side buckling regulating attachment plate 116B is included in one meshing chain 111A in a state where the paired meshing chains 111A and 111B are meshed with each other and integrated. It overlaps with two hook-shaped external tooth plates 113A and 113A adjacent to each other in the chain longitudinal direction.
As a result, the two hook-shaped external teeth plates 113A and 113A are supported from the chain width direction W by the other side buckling regulating attachment plate 116B, so that the lifting drive meshing chain unit 110 has a pair of meshing chains 111A and 111B. In the chain width direction without increasing the work load at the time of assembling the apparatus for reinforcing the apparatus and increasing the number of parts and the cross-sectional area of the pair of meshing chains 111A and 111B integrated with each other. The driven body 120 is more accurately transported to a higher position in a state where the buckling strength along W is improved and the pair of meshing chains 111A and 111B are made to stand straight along the vertical direction.

  The lifting drive engagement chain unit 110 of the present embodiment obtained in this way has a pair of engagement chains 111A and 111B that are engaged with each other and integrated with each other. A plurality of one-side buckling regulating attachment plates 116A each having a pair of front and rear buckling regulating surfaces 116AS and 116AS for regulating buckling along the chain are arranged along the longitudinal direction of the chain and a pair of meshing chains A pair of meshing chains 111A are attached to the outside of a hook-shaped external tooth plate 113A included in one meshing chain 111A of 111A and 111B, and the pair of meshing chains 111A and 111B are meshed with each other and integrated. A pair of front and rear buckling regulating surfaces 116B for regulating buckling along the opposing surface S of 111B. A plurality of other side buckling restricting attachment plates 116BS each provided with a hook-like external tooth plate 113B arranged along the longitudinal direction of the chain and included in the other meshing chain 111B of the pair of meshing chains 111A and 111B. The one side buckling restricting attachment plate 116A and the other side buckling restricting attachment plate 116B are integrated with a pair of meshing chains 111A, 111B meshed with each other. One of the meshes along the opposing surface S of the pair of meshing chains 111A and 111B by being offset from each other along the longitudinal direction of the chain by a half pitch of the plate pitch P1 of the hook-shaped external teeth plates 113A and 113B, that is, the pitch P2. From chain 111A to the other meshing chain 111B A pair of meshing chains 111A, 111A, 111B and a pair of meshing chains 111A, 111A, 111B along the opposing surface S of the pair of meshing chains 111A, 111B. Inclination of the pair of meshing chains 111A and 111B is regulated in a state of being evenly opposed to the component force of the load that tilts 111B, and the pair of meshing chains 111A and 111B is made to stand straight along the vertical direction. In the state, the driven body 120 is transported to a high position, and between the link plates such as the hook-shaped internal tooth plates 112A, the hook-shaped internal tooth plates 112B, the hook-shaped external tooth plates 113A, and the hook-shaped external tooth plates 113B. A decrease in meshing accuracy is avoided, and a pair of meshing chains This is accompanied by an increase in work load at the time of assembling the apparatus for installing a reinforcing tool that reinforces the belts 111A and 111B, an increase in the number of parts, and an increase in the cross-sectional area of the pair of meshing chains 111A and 111B integrated with each other. The effect is enormous, for example, the buckling strength can be improved without any problems.

DESCRIPTION OF SYMBOLS 100 ... Engagement chain type raising / lowering device 110 ... Elevation drive engagement chain unit 111A, 111B, 211 ... Engagement chain 112A, 112B ... Hook-like internal tooth plate 113A, 113B ... Hook-like external tooth Plates 114A, 114B ... Connecting pins 115A, 115B ... Bushings 116A, 116B ... Buckling control attachment plates 116AS, 116BS ... Buckling control surfaces 116AP, 116BP ... Buckling control attachment plates Plate surface 120, 220 ... Driven body 130 ... Chain guide plate 131 ... Chain housing groove 132 ... Chain guiding groove 133 ... Driving sprocket housing groove 140 ... Driving Sprocket 150 ・ ・ ・ Driving source 151 ・··· Orthogonal gear 152 ··· Driving motor 213 ··· Link plate 213S · · · Plate end surface of link plate CL · · · Center line of a pair of meshing chains meshed with each other D1 · · · Pair Stiffness direction of the meshing chain D2 ... Branch direction of the pair of meshing chains F ... Horizontal component force S ... Opposite surfaces of the pair of meshing chains W ... Chain width direction

Claims (6)

A pair of hook-shaped internal teeth plates that are spaced apart along the chain width direction and a hook-shaped external tooth plate that is disposed adjacent to the outside of the pair of hook-shaped internal teeth plates are connected to the longitudinal direction of the chain by a pair of front and rear connecting pins. In an ascending / descending drive meshing chain unit that is constructed by connecting a large number, and a pair of meshing chains are opposed to each other, meshed and integrated, and disengaged from each other to branch.
A plurality of one-side bucklings each having a pair of front and rear buckling regulating surfaces that regulate buckling along opposing surfaces of the pair of meshing chains in a state where the pair of meshing chains are meshed with each other and integrated. Restricting attachment plates are arranged along the longitudinal direction of the chain and attached to the outside of the hook-shaped external tooth plate included in one of the pair of meshing chains,
A plurality of other bucklings each provided with a pair of front and rear buckling regulating surfaces for regulating buckling along opposing surfaces of the pair of meshing chains in a state where the pair of meshing chains are meshed with each other and integrated. Restricting attachment plates are arranged along the longitudinal direction of the chain and attached to the outside of the hook-shaped external tooth plate included in the other meshing chain of the pair of meshing chains,
The one-side buckling-restricting attachment plate and the other-side buckling-restricting attachment plate are half the plate pitch of the plurality of hook-shaped external tooth plates in a state where the pair of meshing chains are meshed with each other and integrated. An ascending / descending drive meshing chain unit characterized by being shifted from each other along the longitudinal direction of the chain by a pitch.   The one-side buckling-restricting attachment plate and the other-side buckling-restricting attachment plate are connected to the one meshing chain and the other by connecting pins included in one meshing chain and the other meshing chain of the pair of meshing chains, respectively. The raising / lowering engagement chain unit according to claim 1, wherein each of the engagement chains is fixedly coupled to each other.   The buckling restriction surfaces of the one side buckling restriction attachment plate and the other side buckling restriction attachment plate extend horizontally in a state where the pair of meshing chains are engaged with each other and integrated. The raising / lowering drive meshing chain unit of Claim 1 or Claim 2 characterized by these.   The one side buckling restriction in a state in which the buckling restriction surfaces of the one side buckling restriction attachment plate and the other side buckling restriction attachment plate are integrated with the pair of meshing chains engaged with each other. 4. The center plate of the pair of meshing chains is straddled along each plate surface of the attachment plate for use and the attachment plate for regulating buckling on the other side. 5. The ascending / descending drive meshing chain unit.   Two hook-shaped external teeth that are included in the other meshing chain and are adjacent to each other in the longitudinal direction of the chain in a state in which the one side buckling regulating attachment plate meshes and integrates the pair of meshing chains. The meshing chain unit for raising and lowering drive according to claim 4, wherein the chain unit overlaps with the plate.   Two hook-shaped external teeth that are included in the one meshing chain and are adjacent to each other in the longitudinal direction of the chain in a state in which the other side buckling restricting attachment plate meshes and integrates the pair of meshing chains. 6. The raising / lowering driving interlocking chain unit according to claim 4, wherein the chaining unit overlaps with the plate.

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