Meshing chain lifting platform

Abstract

This invention provides a chain-driven lifting platform that can suppress tilting and buckling of the chain, maintain the lifting load of the chain regardless of the lifting stroke, has high operational reliability, and reduces the workload involved in maintenance. Specifically, the chain-driven lifting platform (100) of this invention includes a chain guide mechanism (130) that supports the chain (120), which drives the lifting body (101) to move freely up and down. The chain guide mechanism (130) is configured to include a support body (131), which is configured to move while maintaining its relative positional relationship with the lifting body (101) when the chain (120) moves a predetermined amount or more in the traveling direction from the state where the lifting body (101) is in its lowest position.

Description

Technical Field

[0001] This invention relates to a chain-driven lifting platform that uses a meshing chain to move the lifting body. Background Technology

[0002] Lifting devices are used in all industrial sectors, including manufacturing equipment in various manufacturing fields, conveying equipment in the transportation field, care equipment in the medical and welfare field, and stage equipment in the arts field.

[0003] As such a lifting device, there is a known type of lifting machine that uses a meshing chain to move the lifting body up and down (see, for example, Patent Document 1). The meshing chain is configured such that as it moves in the direction of travel, a pair of chain components become rigidly integrated by meshing with each other, while simultaneously disengaging from each other and branching freely.

[0004] In such a chain-driven lifting platform, for example, the end of the chain on the direction of travel is connected to the center of the bottom surface of a top plate, which serves as the lifting body and is used to move the lifting body, by means of a chain drive device such as a sprocket. Thus, by directly pushing and pulling the top plate using the chain, high-speed, high-frequency operation can be achieved in an energy-efficient manner.

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2014-234904 Summary of the Invention

[0007] Furthermore, in chain-driven lifts, the load of the transported object is supported by the meshing chain. Therefore, when the lifting stroke (head) of the top plate is increased by extending and rigidifying the section that makes a pair of chain components mesh with each other, it is easy for the meshing chain to tilt and buckle. When the meshing chain tilts and buckles, the lifting load is reduced, which becomes a major cause of unstable lifting operation or reduced chain durability.

[0008] Thus, the lift of a chain-driven lifting platform depends on the bending strength of the chain, which limits the freedom of the chain's size and configuration.

[0009] On the other hand, in order to suppress the tilting and buckling of the meshing chain, a guide part is provided on a telescopic linkage mechanism that can extend and retract freely in the direction of the forward and backward movement of the meshing chain.

[0010] However, this method, along with the increased complexity of the overall device structure and the increase in the number of parts, also presents the problem of increased device manufacturing costs.

[0011] Furthermore, since the guide is movable through a telescopic linkage mechanism, its operational reliability may decrease due to long-term use, which may lead to an increased workload for maintenance.

[0012] The present invention is an invention to solve this problem. The technical problem to be solved is to provide a chain-driven lifting platform that can suppress the tilting and buckling of the meshing chain, maintain the pushing load of the meshing chain regardless of the lifting stroke, has high operational reliability, and can reduce the workload involved in maintenance.

[0013] This invention relates to a chain-driven lifting platform, comprising: a lifting body; and a chain that supports the bottom surface of the lifting body and drives the lifting body to move freely up and down. The problem is solved by the following: the chain is configured such that a pair of chain members are engaged with each other and rigidly integrated in an independent state by moving in the traveling direction, and the pair of chain members disengage from each other and freely branch by moving in the backward direction. The platform also includes a chain guide mechanism supporting the chain, the chain guide mechanism having a support body, the support body being configured such that when the chain is in its lowest position from the lifting body… When the state moves a predetermined amount in the direction of travel, it can move while maintaining its relative positional relationship with the lifting body as the meshing chain moves. The support body is configured to engage with the meshing chain and move integrally with the meshing chain. The meshing chain has an engaging portion protruding outward in the chain width direction. The support body has a support frame portion. The support frame portion is positioned on both sides in the chain width direction to clamp the meshing chain and guide the movement of the meshing chain from both sides in the chain width direction. The support frame portion has an engaging portion that engages with the engaging portion as the meshing chain moves.

[0014] In the chain-driven lifting platform according to technical solution 1, the chain guide mechanism, which freely supports the chain at a specified height, is configured to include a support body. This support body is configured to move while maintaining its relative position to the lifting platform as the chain moves more than a specified amount in the traveling direction from the lifting platform's lowest position. Therefore, according to the configuration described in technical solution 1, the chain guide mechanism can support the chain during the lifting of the platform without hindering its upward movement. Consequently, tilting and buckling of the chain can be suppressed, the lifting load of the chain can be maintained regardless of the lifting stroke (head), and the lifting stroke can be extended.

[0015] Furthermore, since there is no need to install movable parts such as telescopic linkage mechanisms, it can avoid the problem of increased device manufacturing costs associated with the overall complexity of the device structure and the increase in the number of parts. At the same time, it can achieve highly reliable operation and reduce the workload involved in maintenance.

[0016] Furthermore, it can support the meshing chain with a simple structure that follows the movement of the meshing chain.

[0017] Furthermore, tilting and buckling of the meshing chain can be suppressed not only in the relative direction of the pair of chain components but also in the chain width direction, thus enabling more stable lifting and lowering movements of the lifting body. Moreover, because the meshing chain's engaging portion can engage with the engaged portion provided on the support body by moving the meshing chain in the traveling direction, and the engagement between the meshing chain and the support body can be released at the lowest lowering position by moving the meshing chain in the backward direction, the structure is simple and the operation is highly reliable.

[0018] According to the configuration described in technical solution 2, the desired effect can be achieved without significant changes to the configuration of the meshing chain or an increase in the number of parts.

[0019] According to the configuration described in technical solution 3, stable movement can be achieved while restricting the posture of the support.

[0020] According to the configuration described in technical solution 4, the meshing chain can be guided to move in the forward and backward movement direction more smoothly and stably.

[0021] According to the configuration described in technical solution 5, since the lifting load of the meshing chain is satisfied, and there is no limitation on the lifting stroke, the lifting stroke can be extended.

[0022] According to the configuration described in this technical solution 6, since the guide length of the support in the meshing direction after a pair of chain components mesh with each other is equivalent to more than two chain pitches, the area containing the movable part on the chain component can be limited, thus effectively suppressing tilting and buckling on the meshing chain. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the configuration of an example of the meshing chain type lifting machine of the present invention.

[0024] Figure 2 It is a three-dimensional diagram representing a part of the meshing chain.

[0025] Figure 3 It is an exploded perspective view showing a part of the chain components that make up the meshing chain.

[0026] Figure 4 This is a top view of the chain guide mechanism.

[0027] Figure 5 This is an enlarged view schematically showing the structure of the meshing chain support part of the chain guide mechanism.

[0028] Figure 6 This is a schematic diagram used to illustrate the lifting and lowering action of the support structure.

[0029] Figure 7 The diagram schematically illustrates the configuration of other examples of the meshing chain lift of the present invention, and is viewed from the opposite direction of a pair of chain components.

[0030] Figure 8 This is a schematic diagram illustrating the structure of a stair lift using the meshing chain type lift of the present invention.

[0031] Figure 9 It means Figure 8 The diagram shows a top view of the lifting mechanism on a stair lift.

[0032] Symbol Explanation

[0033] 100-Chain-type lifting platform; 101-Lifting body; 102-Lifting platform; 103-Guide roller bracket; 104-Guide roller; 105-Car; 108-Lifting body guide rail; 110-Lifting body drive mechanism; 111-Drive sprocket; 112-Drive motor; 113-Brake release lever; 114-Manual lowering mechanism; 115-Encoder; 117-Chain box; 120-Meshing chain; 121A-Chain component; 121B-Chain component; 122-Hook-shaped internal tooth plate; 123-Bushing; 124-Roller; 125-Hook-shaped outer toothed plate; 126-Connecting pin; 126A-Connecting pin for engaging; 127-Engaging part; 130-Chain guide mechanism; 131-Support body; 131A-First support body; 131B-Second support body; 132-Base part; 133-Support head; 135-Support frame part; 136-Engaged part; 137-Groove; 140-Support body guide rail; 145-Guide roller; 146-Bracket; 147-Buffer component. Detailed Implementation

[0034] The meshing chain type lifting machine of the present invention will now be described with reference to the accompanying drawings.

[0035] Figure 1 This is a schematic diagram illustrating the configuration of an example of the meshing chain type lifting machine of the present invention.

[0036] The chain-driven lifting platform 100 of this embodiment includes: a lifting body 101 for loading heavy objects or other transportable items; a lifting body drive mechanism 110 for freely lifting and lowering the lifting body 101; and a pair of lifting body guide rails 108 for guiding the lifting body 101. Hereinafter, for ease of explanation, Figure 1 The left and right directions in the diagram are taken as the X direction, and the direction perpendicular to the plane of the paper is taken as the Y direction. Figure 1 The vertical direction is taken as the Z direction and defined as a three-dimensional orthogonal coordinate system of XYZ to describe the structure of each part.

[0037] The lifting body 101 is, for example, composed of a lifting platform 102, which has a horizontal loading surface extending along the XY plane and has a rectangular shape.

[0038] Guide roller brackets 103 are provided on each of the two sides of the bottom surface of the lifting platform 102 in the X direction. Each guide roller bracket 103 has a vertical plate-like portion extending along the YZ plane, and guide rollers 104 are configured on the outside of this vertical plate-like portion to rotate freely about a rotation axis extending in the X direction. In this embodiment, a pair of lifting body guide rails 108 are spaced apart in the X direction and arranged perpendicularly to each other. Two pairs of four guide rollers 104 are configured on the guide roller brackets 103 to rotate along the lifting body guide rails 108 while being clamped from the Y direction. This prevents swaying and pitching that easily occur on the lifting body 101, achieving a reliable and stable lifting action. Furthermore, the arrangement of the guide rollers 104 is not particularly limited, as long as it is an arrangement that prevents swaying and pitching of the lifting body 101.

[0039] The lifting body guide rail 108 is configured such that the two sides in the Y direction form a V shape on the cross section of the XY plane, and the guide roller 104 has a V-shaped rotating surface on the cross section passing through the rotating shaft, thereby realizing a reliable and stable lifting action of the lifting body 101.

[0040] The lifting body drive mechanism 110 includes: a meshing chain 120 that supports the center of the bottom surface of the lifting platform 102 and drives the lifting platform 102 freely; a drive sprocket 111 that drives the meshing chain 120 freely; and a drive motor 112 that supplies driving force to the drive sprocket 111.

[0041] The meshing chain 120 is configured such that a pair of chain parts 121A and 121B mesh with each other and are rigidly integrated in an independent state by moving in the traveling direction, and the pair of chain parts 121A and 121B disengage from each other and branch freely by moving in the backward direction.

[0042] A pair of chain components 121A and 121B are configured to move forward and backward along a generally U-shaped movement path. The movement path has: a vertical movement portion extending in a straight line in the Z direction at a position outside the lifting body guide rail 108 in the X direction and at a central position in the X direction; and a horizontal movement portion extending in a straight line in the X direction within the chain box 117.

[0043] Also Figure 2 and Figure 3 As shown, each of the chain components 121A and 121B has: multiple pairs of hook-shaped inner tooth plates 122 and multiple pairs of hook-shaped outer tooth plates 125, which are sequentially connected in a straight line along the forward and backward movement direction; a bushing 123, which is installed between each pair of hook-shaped inner tooth plates 122 opposite to each other in the chain width direction; a roller 124, which is rotatably inserted into the bushing 123; and a connecting pin 126, which, when passing through the bushing 123, rotatably connects each pair of hook-shaped inner tooth plates 122 and each pair of hook-shaped outer tooth plates 125 that overlap and are adjacent to each other at their upper ends in the straight line direction.

[0044] In this embodiment, a multi-column chain component with three columns in the chain width direction is used on a pair of chain components 121A and 121B constituting the meshing chain 120. By engaging multiple and securely in a hook-like manner in the multi-column direction in the chain width direction, buckling that is prone to occur in the chain width direction of the meshing chain 120 can be effectively suppressed.

[0045] like Figure 1 As shown, the drive sprocket 111 is configured to rotate in both directions around an axis extending along the width direction (Y direction) of the chain, in a position where a pair of chain components 121A and 121B in the chain box 117 are engaged with each other and are rigidly integrated in an independent state, in a manner that engages with one of the chain components 121A.

[0046] The drive motor 112 may be a three-phase induction motor, but it may also be a servo motor.

[0047] Furthermore, the chain-type lifting platform 100 has a chain guide mechanism 130 that supports the chain 120.

[0048] The chain guide mechanism 130 includes: a support body 131, which is configured to extend in the opposite direction (X direction) of a pair of chain components 121A, 121B; and a pair of support body guide rails 140, which are perpendicularly arranged to each other on both sides of the meshing chain 120 in the X direction, so as to guide the support body 131.

[0049] like Figure 4 and Figure 5As shown, the support body 131 includes: a pair of base portions 132 arranged at a distance in the X direction to form a space through which the meshing chain 120 can pass; and a support frame portion 135 provided on both sides of the base portions 132 in the Y direction, integrally connecting the base portions 132. The support frame portion 135 is configured to clamp the meshing chain 120 and guide the movement of the meshing chain 120 from both sides in the Y direction. As a result, tilting and buckling of the meshing chain 120 can be suppressed not only in the X direction but also in the Y direction, thereby enabling a more stable lifting operation of the lifting body 101.

[0050] On the outer end of each base portion 132 in the X direction, two guide rollers 145 are arranged in the height direction (Z direction) and rotate along the support guide rail 140. The brackets 146 supporting the guide rollers 145 are mounted on the base portion 132 by a buffer member 147, for example, a coil spring, which can absorb vibrations during the movement of the support 131 and deformation of the meshing chain 120. By forming this configuration, stable movement can be achieved while restricting the posture of the support 131, so that the lifting platform 102 can be smoothly raised and lowered while maintaining a parallel state with respect to the setting surface.

[0051] The support guide rail 140 is configured such that, in the cross section of the XY plane, the guide surface in contact with the guide roller 145 is V-shaped, and the rotation surface of the guide roller 145 in the cross section passing through the rotation axis extending along the Y direction is V-shaped, thereby enabling a reliable and stable lifting action of the support 131.

[0052] On the inner end of each base portion 132 in the X direction, there is a support head 133 configured to contact the rollers 124 of the meshing chain 120 from both sides in the X direction.

[0053] The support head 133 is made of, for example, resin material and has a shape that is compatible with both sides of the meshing chain 120 in the X direction.

[0054] The support body 131 is configured such that, when the meshing chain 120 moves a predetermined amount in the traveling direction from the state where the lifting body 101 is in its lowest position, it can move while maintaining its relative positional relationship with the lifting platform 102. When the lifting body 101 rises and falls between its lowest position and a predetermined height, the support body 131 remains in its lowest position, i.e., its standby position, and slidably guides the meshing chain 120.

[0055] Since buckling and tilting of the meshing chain 120 will not occur as long as the amount of movement of the meshing chain 120 is small when it is moved, it is not necessary to always support the meshing chain 120 by the support body 131. Therefore, by configuring the support body 131 to be movable to support the appropriate position of the meshing chain 120 in the height direction when the lifting body 101 moves to the upper limit height position (the highest position), it is not necessary to move the movable part of the support body 131 to follow the movement of the meshing chain 120. Therefore, it is possible to avoid the problem of increased device manufacturing costs associated with the overall complexity of the device structure and the increase in the number of parts, and to achieve highly reliable operation and reduce the workload involved in maintenance.

[0056] In this embodiment, when the meshing chain 120 moves more than a predetermined amount in the traveling direction, the support 131 engages with the meshing chain 120, thereby the support 131 is configured to move integrally with the meshing chain 120.

[0057] To be more specific, the meshing chain 120 is configured to have a locking portion 127 protruding outward in the width direction of the chain, and the support frame portion 135 is configured to have a locking portion 136 that engages with the locking portion 127 as the meshing chain 120 moves.

[0058] The engaging portion 127 of the meshing chain 120 is configured such that, when the lifting body 101 rises to the upper limit height position, the connecting pin located at a predetermined height position extends outward in the chain width direction. Hereinafter, this connecting pin is referred to as the engaging connecting pin 126A. Furthermore, the engaging portion 136 of the support frame portion 135 is formed by a groove 137 that can accommodate the engaging connecting pin 126A of the meshing chain 120.

[0059] The above, such as Figure 5 As shown, the preferred guide length L is a range equivalent to more than two chain pitches p. The guide length L is the guide length L of the chain guide mechanism 130 in the meshing direction (Z direction) after a pair of chain components 121A and 121B mesh with each other. Due to this configuration, the area of ​​the freely rotatable connection portion on the chain components 121A and 121B, including the hook-shaped inner tooth plate 122 and the hook-shaped outer tooth plate 125, can be limited, and a state equivalent to the fixed end can be formed relative to the lifting body guide rail 108. Therefore, tilting and buckling on the meshing chain 120 can be effectively suppressed.

[0060] In this chain-driven lifting platform 100, when the drive motor 112 rotates forward, causing the drive sprocket 111 to rotate forward, each chain component 121A and 121B moves in the traveling direction and meshes with each other, becoming rigidly integrated in an independent state. Then, the meshing chain 120 is released from the chain box 117, and the lifting body 101 is pushed from the bottom side by the meshing chain 120, thus moving upward in the Z direction.

[0061] like Figure 6 As shown, when the meshing chain 120 moves a predetermined amount in the traveling direction from the state where the lifting body 101 is in its lowest position, the engaging connecting pin 126A engages with the groove 137 of the support body 131 as the meshing chain 120 moves. Consequently, the support body 131 moves integrally with the meshing chain 120 while maintaining its relative position to the lifting platform 102. Therefore, since the lateral deformation of the chain bending direction caused by buckling is corrected, the tilting and buckling of the meshing chain 120 can be suppressed, and the lifting load of the meshing chain 120 can be maintained regardless of the lifting stroke (lift). Thus, even when a large lift is required, stable lifting action can be achieved without changing the size and configuration of the meshing chain 120.

[0062] On the other hand, when the reverse drive motor 112 causes the drive sprocket 111 to rotate in reverse, the meshing chain 120 is pulled into the chain box 117, and the lifting body 101 moves downward in the Z direction due to being pulled by the meshing chain 120.

[0063] When the support body 131 moves to the lowest position, i.e. the standby position, the engagement of the engagement chain 120 with the groove 137 of the support body 131 is released as the engagement chain 120 moves, preparing for the next upward movement of the lifting body 101.

[0064] Subsequently, as the meshing chain 120 moves further in the backward direction, the lifting body 101 moves to the lowest position.

[0065] While the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Various design changes can be made without departing from the scope of the present invention as described in the technical solution.

[0066] Although in the above embodiment, the chain is supported by a chain guide mechanism at one point in the height direction when the lifting body moves to the upper limit height position, it can also be configured to support the chain at multiple points in the height direction.

[0067] Figure 7 The diagram schematically illustrates the configuration of other examples of the meshing chain lift of the present invention, and is viewed from the opposite direction of a pair of chain components.

[0068] The chain guide mechanism on this chain-driven lifting platform includes a first support 131A and a second support 131B that support the meshing chain 120 at predetermined intervals in the height direction when the lifting body 101 moves to the upper limit height position. The number of supports is not particularly limited and can be appropriately changed according to the purpose.

[0069] The engaging connecting pins 126A that engage with the first support 131A and the second support 131B are configured to have different lengths. In this embodiment, the engaging connecting pin 126A that engages with the first support 131A, which moves first, is configured to be shorter than the engaging connecting pin 126A that engages with the subsequent second support 131B.

[0070] In this chain-driven lifting platform, the moving chain 120 engages the connecting pins 126A with the first support 131A and the second support 131B in sequence, and the first support 131A and the second support 131B move sequentially. While the lifting body 101 moves, the relative positional relationship between the lifting platform 102 and the first support 131A, and between the lifting platform 102 and the second support 131B, is maintained.

[0071] Since there is no limitation on the lifting stroke in a chain-type lifting platform with multiple supports, as long as the pushing load of the chain 120 is met, the lifting stroke can be extended.

[0072] Furthermore, although in the above embodiment, the engaging portion on the support body relative to the engaging portion is composed of a connecting pin, it can also be constructed by providing a component different from the chain component.

[0073] Furthermore, as long as the lifting body can vertically transport the loaded object between the lower and upper positions, the meshing chain type lifting machine of the present invention can also be any device layout.

[0074] Furthermore, the meshing chain used in the meshing chain type lifting machine of the present invention can have any specific chain shape as long as it is configured as a pair of chain components meshing with each other and being rigidly integrated in an independent state, and being able to branch freely after disengaging from each other. For example, it can be a single column with one row in the chain width direction, or multiple columns with two or more rows in the chain width direction. In addition, as the chain that drives the lifting body to lift freely, a chain configured as follows can also be used, that is, a columnar rigid body is formed by combining multiple no-backbend chains that bend only to one side from a straight posture to a curved posture.

[0075] The following describes an embodiment of applying the meshing chain type lifting mechanism of the present invention to a step lifting mechanism.

[0076] Figure 8 This is a schematic diagram illustrating the structure of a stair lift using the meshing chain type lift of the present invention. Figure 9 It means Figure 8 The diagram shows a top view of the lifting mechanism on a stair lift.

[0077] The stair lift has a car 105 as the lifting body 101, which can move up and down in the lift path connecting the downstairs and upstairs in the residence. For example, if the user is in a wheelchair, the chain lift 100 can be used as the lifting device for the car 105.

[0078] The stair lift is configured such that, at approximately the midpoint of the lift H from a lower floor, such as floor 1 (FL1) to an upper floor, such as floor 2 (FL2), the chain guide mechanism 130 supports the meshing chain 120.

[0079] On the guide roller bracket 103 located on the bottom surface of the car 105, for example, a deceleration limit switch (not shown) and a stop limit switch (not shown) are provided to enable more safe and stable lifting operations.

[0080] Furthermore, the drive motor 112 constituting the lifting body drive mechanism 110 uses a motor with braking, such as... Figure 9 As shown, by providing a brake release lever 113 and a manual lowering mechanism 114, the car 105 can be manually raised and lowered even in emergencies such as power outages. Therefore, in emergencies such as power outages, passengers will not be trapped inside the car 105, thus achieving a higher level of safety. Furthermore, Figure 9 115 is an encoder used to detect the position of the car 105 and the rotational speed of the drive shaft of the drive motor 112.

[0081] While the meshing chain type lifting device of the present invention is useful as a lifting device for step lifts, it can not only be used as a lifting device for step lifts, but also, as mentioned above, can be used as a lifting device for manufacturing equipment in various manufacturing fields, conveying equipment in the transportation field, nursing equipment in the medical and welfare field, stage equipment in the arts field, and so on.

Claims

1. An engaged chain elevator comprising: an elevator body; and an engaged chain that supports a bottom surface of the elevator body and drives the elevator body in a vertically movable manner, characterized in that: the engaged chain is configured such that a pair of chain members are engaged with each other by moving in a traveling direction and are rigidly integrated in an independent state, and the pair of chain members are disengaged from each other by moving in a retreating direction and are freely branched, the engaged chain elevator comprises a chain guide mechanism that supports the engaged chain, the chain guide mechanism comprises a support body configured to be movable in a state in which a relative positional relationship with the elevator body is maintained as the engaged chain moves, when the engaged chain is moved by a prescribed amount or more from a state in which the elevator body is positioned at a lowermost position, the support body is configured to be capable of engaging with the engaged chain and moving integrally with the engaged chain, the engaged chain has an engaging portion that protrudes outward in a chain width direction, the support body has a support frame portion that is positioned to sandwich the engaged chain from both sides in the chain width direction and guides movement of the engaged chain from both sides in the chain width direction, and the support frame portion has an engaged portion that engages with the engaging portion as the engaged chain moves.

2. The engaged chain elevator according to claim 1, characterized in that: the pair of chain members of the engaged chain has a plurality of link plates that are sequentially connected in a straight-line direction along a moving direction in which the engaged chain moves forward and backward, and a connecting pin that connects link plates that are adjacent to each other in a state in which the link plates overlap each other at end portions in the straight-line direction, and the engaging portion is configured such that the connecting pin positioned at a prescribed height position is formed to extend outward in the chain width direction when the elevator body is raised to an uppermost position.

3. The engaged chain elevator according to claim 1, characterized in that: a pair of support body guide rails that guide the support body in a perpendicular manner with respect to each other are provided outward of both sides of the engaged chain in an opposite direction of the pair of chain members, and a plurality of guide rollers that are arranged in a height direction and rotate along the support body guide rails are provided on each of both ends of the support body in the opposite direction of the pair of chain members.

4. The engaged chain elevator according to claim 1, characterized in that: the support body has a support head portion configured to contact rollers of the engaged chain from both sides in the opposite direction of the pair of chain members.

5. The engaged chain elevator according to claim 1, characterized in that: a plurality of the support bodies are provided, and the plurality of support bodies are configured to be movable in a height direction in a manner in which the plurality of support bodies are sequentially moved at prescribed intervals when the elevator body is moved to an uppermost position.

6. The engaged chain elevator according to claim 1, characterized in that: a guide length of the support body in an engaging direction in which the pair of chain members are engaged with each other is a size corresponding to a range of two chain pitches or more. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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