TW202014625A - Engagement chain and movable body moving device - Google Patents

Abstract

This meshing chain (12) comprises at least a pair of chain members (12A, 12B) capable of advancing and retreating. Each of the chain members (12A, 12B) is provided with: a plurality of link plates (22, 30) each comprising a pair of pin holes (21, 29); and a plurality of connecting pins (23). Each of the link plates (22, 30) comprises meshing surfaces (25, 32) on one end in an advance-retreat direction (Z) and engagement surfaces (27, 34) on the other end in the advance-retreat direction (Z). Among chain members (12A, 12B) forming a pair, the link plates of one chain member (12A) are first link plates (22) and the link plates of the other chain member (12B) are second link plates (30). First engagement surfaces (27) in the first link plates (22) are provided with engagement recesses (28) extending along said first engagement surfaces (27). Second engagement surfaces (34) in the second link plates (30) are provided with engagement protrusions (35) that extend along said second engagement surfaces (34) and that are fitted together with the engagement recesses (28) when the first engagement surfaces (27) and the second engagement surfaces (34) engage.

Description

Engagement chain and movable body moving device

The present disclosure relates to an engaging chain and a movable body moving device that uses the engaging chain to move a movable body.

Conventionally, such a movable body moving device is known as, for example, an engaging chain type forward and backward actuating device shown in Patent Document 1. In this meshing chain type forward and backward actuating device, a pair of meshing chains (chain members) that can advance and retreat are integrated as they move in the forward direction and then mesh with each other. On the other hand, they diverge as they move in the backward direction and are released from mutual meshing. As a result, the lifting platform is raised and lowered.

This meshing chain is composed of a plurality of link plates connected in the longitudinal direction of the meshing chain. In detail, each link plate has a pair of pin holes. Adjacent link plates are connected in a bendable manner by connecting pins and pin holes. Each link plate has a flat hook-shaped engagement end surface (engagement surface) and a flat buckling regulation end surface (engagement surface). The hook-shaped engaging end surface is provided at one end of the link plate in the advancing and retreating direction, and is curved in an S shape. The end face of the buckling regulation is provided at the other end of the link plate in the advancing and retreating direction, and extends linearly in a direction obliquely crossing with respect to the advancing and retreating direction.

Prior technical literature Patent Literature Patent Document 1: Japanese Patent Laid-Open No. 2012-237406

Problems to be solved by the invention However, as in the above-mentioned meshing chain type forward and backward actuating device, in a state where the pair of meshing chains are meshed with each other as they move in the advancing direction, the hook of the link plate of the meshing chain on one side among the pair of meshing chains The meshing end face will mesh with the hook-shaped meshing end face of the link plate that engages the chain on the other side.

In the integrated state, when a high compression load is applied to a pair of engagement chains in the forward and backward directions, the hook-shaped engagement end surface of the link plate is flat, so the two adjacent chains that mesh with each other at the hook-shaped engagement end surface The knot plates can slide in the extending direction of the connecting pin, which may cause the pair of engagement chains to buckle in the integrated state. Therefore, there is still room for improvement in increasing the buckling load of a pair of engaging chains in an integrated state.

An object of the present disclosure is to provide an engaging chain and a movable body moving device capable of lifting a buckling load in a state where chain members are engaged with each other and integrated.

Means to solve the problem The following describes the means to solve the above problems and their effects.

An engaging chain that solves the above problem has at least one pair of chain members that can advance and retreat, the pair of chain members are integrated with each other by moving in a forward direction, and on the other hand, the chain members are integrated with each other The shifted meshing state moves back in the direction of disengagement and disengages from each other, where each chain member is provided with a plurality of link plates and a plurality of connecting pins, each of which has a pair of pin holes arranged in the direction of advance and retreat; each chain The member is formed such that the plurality of link plates are connected in series in a freely rotatable manner through the connecting pin and the pin hole; each link plate has an engagement surface at one end in the advancing and retreating direction, and The other end portion has an engaging surface that extends in a direction perpendicular to the connecting pin; in a state where the pair of chain members are engaged with each other and integrated, the chain members are on the above-mentioned link plate The engagement surfaces of the above are engaged and engaged with the engagement surfaces of the above-mentioned link plates; of the pair of chain members, the link plate of the chain member on one side is the first link plate, and the other The link plate of the chain member on one side is a second link plate, the engaging surface of the first link plate is a first engaging surface, and the engaging surface of the second link plate is a second An engaging surface, the first engaging surface is provided with an engaging concave portion, the engaging concave portion extends along the first engaging surface, and the second engaging surface is provided with an engaging convex portion, the engaging convex portion is along The second engagement surface extends, and when the first engagement surface is engaged with the second engagement surface, it is fitted into the engagement recess.

According to this configuration, in a state where the chain members are engaged with the first engagement surface of the first link plate and the second engagement surface of the second link plate, the engagement convex portion and the engagement concave portion are fitted. Therefore, since the positional deviation between the first link plate and the second link plate in the extending direction of the connecting pin is suppressed, the buckling load in a state where the chain members are meshed with each other and integrated can be increased.

An engaging chain that solves the above problem has at least one pair of chain members that can advance and retreat, the pair of chain members are integrated with each other by moving in a forward direction, and on the other hand, the chain members are integrated with each other The shifted meshing state moves back in the direction of disengagement and disengages from each other, where each chain member is provided with a plurality of link plates and a plurality of connecting pins, each of which has a pair of pin holes arranged in the direction of advance and retreat; each chain The member is formed such that the plurality of link plates are connected in series in a freely rotatable manner through the connecting pin and the pin hole; each link plate has an engagement surface at one end in the advancing and retreating direction, and The other end has an engaging surface that extends in a direction perpendicular to the connecting pin, and the engaging surface extends in a direction perpendicular to the connecting pin; in a state where the pair of chain members are engaged with each other and integrated , The chain members are engaged with the engagement surfaces of the link plates, and are engaged with the engagement surfaces of the link plates; of the pair of chain members, the chain member on one side The link plate of is the first link plate, the link plate of the chain member on the other side is the second link plate, and the engagement surface of the first link plate is the first engagement surface, the second The engaging surface of the link plate is a second engaging surface, the first engaging surface is provided with an engaging convex portion, the engaging convex portion extends along the first engaging surface, and the second engaging surface is provided with an engaging concave portion, the engaging concave portion It extends along the second engagement surface and is engaged with the engagement convex portion when the first engagement surface is engaged with the second engagement surface.

According to this configuration, in a state where the chain members are engaged with the first engagement surface of the first link plate and the second engagement surface of the second link plate, the engagement convex portion and the engagement concave portion are fitted. Therefore, since the positional deviation between the first link plate and the second link plate in the extending direction of the connecting pin is suppressed, the buckling load in a state where the chain members are meshed with each other and integrated can be increased.

Preferably, in the meshing chain, the engaging surface is provided with a concave-convex surface, and the concave-convex surface suppresses the positional deviation of the link plates engaged with each other on the engaging surface in the extending direction of the engaging surface.

According to this configuration, in a state where the chain members are meshed with each other and integrated, the uneven surfaces provided on the engagement surfaces of the respective link plates are fitted to each other. Therefore, since the positional deviation of the link plates engaged on the engagement surface in the extending direction of the engagement surface is suppressed, it is possible to further increase the buckling load in a state where the chain members are engaged with each other and integrated.

Preferably, in the meshing chain, the uneven surface is a curved surface.

According to this configuration, when the chain members are meshed with each other and integrated, the uneven surfaces provided on the engagement surfaces of the respective link plates can be smoothly fitted to each other.

A movable body moving device for solving the above-mentioned problems includes the above-mentioned meshing chain and a movable body that is connected to the meshing chain and can move in the advancing and retreating direction of the meshing chain together with the meshing chain.

According to this structure, the same effect as the above-mentioned mesh chain can be obtained.

Invention effect According to the present disclosure, it is possible to increase the buckling load in a state where the chain members are meshed with each other and integrated.

Hereinafter, an embodiment of the movable body moving device will be described with reference to the drawings.

As shown in FIG. 1, the movable body moving device 11 includes an engagement chain 12, a storage portion 13 arranged in a fixed state, and a movable body 15 connected to a front end portion of the engagement chain 12 via a joint link 14. The engaging chain 12 has a pair of chain members 12A, 12B that can be engaged with each other, and can advance and retreat along their long sides.

In the following description, the meshed chain 12 in the meshed state in which the paired chain members 12A and 12B mesh with each other and are integrated is referred to as the meshed chain 12 in the meshed state. In addition, the advancing and retracting direction of the engaging chain 12 when the movable body 15 is moved is referred to as the advancing and retracting direction Z. At this time, the advancing direction of the engaging chain 12 (upper in FIG. 1) is referred to as the advancing direction Z1, and the retreating direction of the engaging chain 12 (lower in FIG. 1) is referred to as the retreating direction Z2. In addition, in a direction perpendicular to the advancing and retracting direction Z, the direction in which the chain members 12A and 12B are disengaged from each other as the meshing chain 12 in the engaged state moves in the retreating direction Z2 is divergent direction X (left and right in FIG. 1) direction). In addition, the direction perpendicular to both the advancing and retracting direction Z and the branching direction X is referred to as the front-rear direction Y (the direction perpendicular to the paper surface in FIG. 1 ). In addition, in FIG. 1 and FIG. 2, the illustration of the housing of the housing section 13 is omitted, and only the internal configuration of the housing section 13 is shown.

As shown in FIG. 1, the accommodating portion 13 has a structure capable of accommodating the engagement chain 12. A sprocket 16 is provided in the central portion in the divergent direction X in the housing section 13 and meshes with the chain member 12B (engagement chain 12 ). The sprocket 16 can rotate in both the forward and reverse directions around the axis extending in the front-rear direction Y, and is driven to rotate in both the forward and reverse directions by a motor (not shown). In addition, as the sprocket 16 rotates and drives, the mesh chain 12 will advance and retreat in the advancing and retracting direction Z.

In addition, the housing portion 13 includes a rectangular induction plate 17 that is substantially the same as the housing (not shown) in the front-rear direction Y. A pair of induction grooves 18 is provided on the inner side of the induction plate 17, which is substantially bilaterally symmetrical in FIG. The pair of induction grooves 18 has a swirling portion capable of inducing a pair of chain members 12A, 12B, and moves the pair of chain members 12A, 12B diverging from the meshed state in a swirling manner.

In addition, a pair of induction grooves 18 is also provided on the inner side surface of the housing (not shown) in the housing portion 13, which corresponds to the pair of induction grooves 18 of the induction plate 17. Therefore, two pairs of induction grooves 18 facing each other in the front-back direction Y are provided on both inner side surfaces of the front-back direction Y of the housing portion 13. An opening 19 for allowing the meshing chain 12 to pass is formed at about the center of the divergent direction X of the surface of the housing portion 13 on the forward direction Z1 side.

As shown in FIGS. 2 to 4, in this embodiment, the chain member 12A that constitutes the engagement chain 12 uses a chain of chain members. The chain member 12A has a plurality of first link plates 22 as a plurality of link plates and a plurality of cylindrical connection pins 23. Each first link plate 22 has a pair of circular pin holes 21 aligned in the advancing and retracting direction Z. The plurality of first link plates 22 are connected in series through the pin holes 21 and the connection pins 23 so as to be freely rotatable.

Specifically, the plurality of first link plates 22 that constitute the chain member 12A are arranged in pairs in the front-rear direction Y and are arranged in pairs with each other. The multiple pairs of first link plates 22 include a pair of first link plates 22 with a narrow interval and a pair of first link plates 22 with a wide interval.

The pair of first link plates 22 with a narrow interval and the pair of first link plates 22 with a wide interval are alternately arranged in the longitudinal direction so that the pin holes 21 on each side overlap each other in the front-back direction Y. In this state, the pin holes 21 overlapping in the front-rear direction Y are fitted with the connecting pins 23 to form the chain member 12A.

At this time, the pin holes 21 of the paired first link plates 22 having a wide interval, that is, the pair of first link plates 22 located outside the front-rear direction Y are non-rotatably fitted with the connecting pins 23. On the other hand, the pin holes 21 of the pair of first link plates 22 with a narrow interval, that is, the pair of first link plates 22 located inside the front-back direction Y are rotatably fitted with the connecting pins 23.

Both end portions of the connecting pin 23 protrude outward from the pair of first link plates 22 located outside the front-back direction Y. In addition, when the chain member 12A is accommodated in the accommodating portion 13, both ends of the connecting pins 23 are slidably inserted into the accommodating portion 13 in one of the two pairs of induction grooves 18 facing each other in the front-rear direction Y On induction groove 18. That is to say, when the chain member 12A is accommodated in the accommodating portion 13, one end of each connecting pin 23 will be inserted into the induction groove 18 provided in the induction plate 17 of the accommodating portion 13, and the other end of each connecting pin 23 will be inserted An induction groove 18 is provided on the inner surface of the housing (not shown) of the housing portion 13.

The end of the first link plate 22 on the side in the advancing direction Z1 has an undercut recess 24 that is cut in a substantially U shape. The bottom surface of the undercut 24 constitutes a part of the end surface of the wheel forming the first link plate 22, and constitutes the first engaging surface 25 as the engaging surface. That is, the first link plate 22 has the first engagement surface 25 at one end in the advancing and retracting direction Z. An engagement convex portion 26 extending along the longitudinal direction of the first engagement surface 25 is formed in the center portion of the first engagement surface 25 in the front-rear direction Y (the thickness direction of the first link plate 22 ).

The first link plate 22 has a first engagement surface 27 as an engagement surface at the end on the side in the backward direction Z2, and extends obliquely and intersects with respect to the forward and backward direction Z. In other words, the first link plate 22 has the first engagement surface 27 at the other end in the advancing and retracting direction Z. The first engagement surface 27 extends in a direction perpendicular to the front-rear direction Y that coincides with the extending direction of the connecting pin 23. The first engagement surface 27 constitutes a part of the end surface of the wheel forming the first link plate 22, and is constituted by a wave-shaped curved surface which is an uneven surface. An engagement recess 28 extending along the longitudinal direction of the first engagement surface 27 is formed at the center of the first engagement surface 27 in the front-rear direction Y (the thickness direction of the first link plate 22 ). The bottom surface of the engagement recess 28 is formed by a curved surface matching the waveform of the first engagement surface 27.

As shown in FIGS. 2, 3, and 5, in this embodiment, the chain member 12B that constitutes the engagement chain 12 uses the same chain member as the chain member 12A. The chain member 12B has a plurality of second link plates 30 as a plurality of link plates and a plurality of cylindrical connection pins 23. Each second link plate 30 has a pair of circular pin holes 29 aligned in the forward and backward direction Z. The plurality of second link plates 30 are connected in series through the pin holes 29 and the connection pins 23 in a freely rotatable manner.

In detail, the plurality of second link plates 30 constituting the chain member 12B are arranged in groups of two facing each other in the front-rear direction Y and are arranged in pairs. The multiple pairs of second link plates 30 include a pair of second link plates 30 with a narrow interval and a pair of second link plates 30 with a wide interval.

The pair of second link plates 30 with a narrow interval and the pair of second link plates 30 with a wide interval are alternately arranged in the longitudinal direction so that the pin holes 29 on each side overlap each other in the front-back direction Y. In this state, the pin holes 29 overlapping in the front-rear direction Y are fitted with the connecting pins 23 to assemble the chain member 12B.

At this time, the pin holes 29 of the paired second link plates 30 with a wide interval, that is, the pair of second link plates 30 located outside the front-rear direction Y are fitted with the connection pins 23 so as not to rotate. On the other hand, the pin holes 29 of the paired second link plates 30 with a narrow interval, that is, the pair of second link plates 30 located inside the front-back direction Y are rotatably fitted with the connecting pins 23.

Both end portions of the connecting pin 23 protrude outward from the pair of second link plates 30 located outside the front-rear direction Y. In addition, when the chain member 12B is accommodated in the accommodating portion 13, both ends of the connecting pins 23 are slidably inserted into the accommodating portion 13 among the two pairs of induction grooves 18 facing each other in the front-back direction Y A pair of induction grooves 18. That is, when the chain member 12B is accommodated in the accommodating portion 13, one end of each connecting pin 23 is inserted into the induction groove 18 provided in the induction plate 17 of the accommodating portion 13, and the other end of each connecting pin 23 is inserted An induction groove 18 is provided on the inner surface of the housing (not shown) of the housing portion 13.

The end of the second link plate 30 on the side in the backward direction Z2 has an undercut recess 31 that is cut in a substantially U-shape. The bottom surface of the undercut recess 31 constitutes a part of the end surface of the wheel forming the second link plate 30, and constitutes the second engagement surface 32 as an engagement surface. In other words, the second link plate 30 has the second engagement surface 32 at one end in the advancing and retracting direction Z. An engagement recess 33 extending along the longitudinal direction of the second engagement surface 32 is formed at the center of the second engagement surface 32 in the front-rear direction Y (the thickness direction of the second link plate 30 ). When the second meshing surface 32 of the second link plate 30 meshes with the first meshing surface 25 of the first link plate 22, the meshing concave portion 33 is fitted into the meshing convex portion 26.

The second link plate 30 has a second engagement surface 34 as an engagement surface at the end on the side in the forward direction Z1, and extends obliquely and crosswise with respect to the forward and backward direction Z. In other words, the second link plate 30 has the second engagement surface 34 at the other end in the advancing and retracting direction Z. The second engagement surface 34 extends in a direction perpendicular to the front-rear direction Y that coincides with the extending direction of the connecting pin 23. The second engagement surface 34 constitutes a part of the end surface of the wheel forming the second link plate 30, and is constituted by a wave-shaped curved surface which is an uneven surface.

An engagement convex portion 35 extending along the longitudinal direction of the second engagement surface 34 is formed in the center portion of the second engagement surface 34 in the front-rear direction Y (the thickness direction of the second link plate 30 ). When the second engagement surface 34 of the second link plate 30 is engaged with the first engagement surface 27 of the first link plate 22, the engagement convex portion 35 will be engaged with the engagement concave portion 28. The front end surface of the engagement convex portion 35 is constituted by a curved surface matching the waveform of the second engagement surface 34.

As shown in FIG. 1, as the pair of chain members 12A, 12B move in the forward direction Z1, the plurality of first link plates 22 and the plurality of second link plates 30 corresponding between the pair of chain members 12A, 12B will By meshing with each other, the meshing chain 12 is brought into the meshed state of a straight rod-like integrated rigid body structure.

In a state where the pair of chain members 12A and 12B are meshed with each other and integrated, the pair of chain members 12A and 12B are meshed with each other on the first meshing surface 25 of the first link plate 22 and the second mesh of the second link plate 30 The surface 32 is engaged. In addition, the pair of chain members 12A and 12B are engaged with each other on the first engagement surface 27 of the first link plate 22 and the second engagement surface 34 of the second link plate 30.

At this time, the first engagement surface 27 of the first link plate 22 and the second engagement surface 34 of the second link plate 30 are formed by the curved curved surface of the concave and convex surface that can be fitted to each other. Therefore, when the first engagement surface 27 of the first link plate 22 is engaged with the second engagement surface 34 of the second link plate 30, the first engagement surface 27 and the second engagement surface 34 are uneven By fitting, the positional deviation between the first link plate 22 and the second link plate 30 in the extending direction of the first engagement surface 27 and the second engagement surface 34 is suppressed.

On the other hand, as shown in FIG. 2, the pair of chain members 12A, 12B mesh with each other, and the meshing chain 12 in the meshed state moves in the backward direction Z2 to disengage the pair of chain members 12A, 12B from each other and diverge. X divergence. As a result, most of the engagement chain 12 (chain members 12A, 12B) is accommodated in the accommodating portion 13.

Among the pair of chain members 12A and 12B, the first link plate 22 and the second link plate 30 that are engaged with each other on the outer side in the front-rear direction Y and the first link plate that is engaged with each other on the inner side in the front-rear direction Y The position of the junction plate 22 and the second link plate 30 is shifted in the advancing and retracting direction Z to a pitch of only one connecting pin 23 arranged in the advancing and retracting direction Z.

In addition, as shown in FIGS. 1 and 2, the end portion of the meshing chain 12 on the side in the longitudinal direction in the advancing direction Z1 is connected to the movable body 15. The movable body 15 is mounted with various functional members (for example, a lifting table, a crane, etc.). When the movable body 15 moves in the forward and backward direction Z as the mesh chain 12 moves forward and backward, the functional member attached to the movable body 15 also moves in the forward and backward direction Z together with the movable body 15.

Next, the operation of the movable body moving device 11 will be described as the pair of chain members 12A, 12B move in the advancing direction Z1 to make these mutually meshed and integrated, so that the meshed chain 12 becomes a straight rod-shaped meshed state.

When the pair of chain members 12A and 12B are meshed to bring the meshed chain 12 into the meshed state, first, the sprocket 16 is rotationally driven in the clock direction of FIG. 2. Then, the pair of chain members 12A and 12B guide the connecting pins 23 through the guide grooves 18 to move in the advancing direction Z1.

In this way, in the pair of chain members 12A, 12B, the first engagement surface 25 of the first link plate 22 and the second engagement surface 32 of the second link plate 30 that are in correspondence with each other are sequentially engaged, and the first link The first engagement surface 27 of the plate 22 and the second engagement surface 34 of the second link plate 30 are sequentially engaged, and as shown in FIG. 1, the engaging chain 12 is brought into an engaged state.

At this time, as shown in FIG. 6, the first engagement surface 27 of the first link plate 22 and the second engagement surface 34 of the second link plate 30 are formed by the curved surfaces of the concave and convex surfaces that can be fitted to each other constitute. Therefore, when the first engagement surface 27 and the second engagement surface 34 are engaged, the first engagement surface 27 and the second engagement surface 34 are concave-convexly fitted to the first engagement surface 27 and the second card The positional deviation between the first link plate 22 and the second link plate 30 in the extending direction of the joint surface 34 is suppressed.

In addition, as shown in FIG. 6, when the first engagement surface 27 is engaged with the second engagement surface 34, the engagement recess 28 formed on the first engagement surface 27 and the card formed on the second engagement surface 34 The engaging convex portion 35 is fitted (swimming fitting). In addition, as shown in FIGS. 6 and 7, when the first meshing surface 25 of the first link plate 22 meshes with the second meshing surface 32 of the second link plate 30, it is formed on the second meshing surface 32 The meshing concave portion 33 and the meshing convex portion 26 formed on the first meshing surface 25 are fitted (traveling fitting). Therefore, the first link in the front-rear direction Y (the extending direction of the connecting pin 23) is formed by the fitting of the engaging concave portions 28 and the engaging convex portions 35 and the fitting of the engaging concave portions 33 and the engaging convex portions 26 The positional deviation between the plate 22 and the second link plate 30 is effectively suppressed.

Therefore, it is improved by the fitting of the first engaging surface 27 and the second engaging surface 34, the fitting of the engaging concave portion 28 and the engaging convex portion 35, and the fitting of the engaging concave portion 33 and the engaging convex portion 26 The buckling load of the engagement chain 12 makes it difficult for the engagement chain 12 to buckle even if a compression load is applied to the engagement chain 12 in the advancing and retracting direction Z when the engagement chain 12 is in a straight rod-like engagement state.

According to the embodiment detailed above, the following effects can be exerted.

(1) In the engaging chain 12, the first engagement surface 27 of the first link plate 22 of the chain member 12A is provided with the engagement recess 28, and the engagement recess 28 extends along the first engagement surface 27. The second engagement surface 34 of the second link plate 30 of the chain member 12B is provided with an engagement convex portion 35. The engagement convex portion 35 extends along the second engagement surface 34, and when the first engagement surface 27 is When the second engagement surface 34 is engaged, the engagement recess 28 is fitted. According to this configuration, in a state where the chain members 12A and 12B are engaged with each other on the first engagement surface 27 of the first link plate 22 and the second engagement surface 34 of the second link plate 30, the convex portion 35 is engaged The fitting recess 28 will be fitted. Therefore, since the positional deviation between the first link plate 22 and the second link plate 30 in the front-rear direction Y that coincides with the extending direction of the connecting pin 23 can be suppressed, the chain members 12A, 12B can be raised to mesh with each other Buckling load in an integrated state.

(2) In the meshing chain 12, the first meshing surface 25 of the first link plate 22 of the chain member 12A is provided with the meshing convex portion 26, and the meshing convex portion 26 extends along the first meshing surface 25. The second engagement surface 32 of the second link plate 30 of the chain member 12B is provided with an engagement recess 33 that extends along the second engagement surface 32 and when the first engagement surface 25 meshes with the second engagement surface 32 Fits with the engaging convex portion 26. According to this configuration, in a state where the chain members 12A and 12B are engaged with each other on the first engagement surface 25 of the first link plate 22 and the second engagement surface 32 of the second link plate 30, the engagement convex portion 26 and the engagement concave portion 33 Will fit. Therefore, since the positional deviation between the first link plate 22 and the second link plate 30 in the front-rear direction Y that coincides with the extending direction of the connecting pin 23 can be suppressed, the chain members 12A, 12B can be raised to mesh with each other Buckling load in an integrated state.

(3) In the meshing chain 12, the first engagement surface 27 of the first link plate 22 of the chain member 12A and the second engagement surface 34 of the second link plate 30 of the chain member 12B are provided with uneven surfaces. The uneven surface suppresses the positional deviation of the link plates 22 and 30 in which the first engagement surface 27 and the second engagement surface 34 are engaged with each other in the extending direction of the engagement surfaces 27 and 34. According to this configuration, in the state where the chain members 12A and 12B are meshed with each other and integrated, the uneven surfaces provided on the engagement surfaces 27 and 34 of the link plates 22 and 30 are fitted to each other. Therefore, it is possible to suppress the positional deviation of the link plates 22 and 30 engaged on the engagement surfaces 27 and 34 in the extending direction of the engagement surfaces 27 and 34, so that the chain members 12A and 12B can be engaged with each other and integrated The improvement of the buckling load in the state of change.

(4) In the meshing chain 12, the uneven surfaces provided on the engagement surfaces 27 and 34 are wave-shaped curved surfaces. According to this configuration, when the chain members 12A and 12B are meshed and integrated with each other, the uneven surfaces provided on the engagement surfaces 27 and 34 of the link plates 22 and 30 can be smoothly fitted to each other.

(Example of change) However, the above embodiment can also be changed as follows.

• As shown in FIGS. 8 and 9, the first engagement surface 27 of the first link plate 22 and the second engagement surface 34 of the second link plate 30 can also be constituted by flat surfaces instead of corrugated Surface.

As shown in FIGS. 10 and 11, the bottom surface of the engagement recess 28 of the first engagement surface 27 of the first link plate 22 and the second engagement surface 34 of the second link plate 30 can also be engaged The front end surface of the convex portion 35 is formed by a flat surface, not by a curved surface of a wave shape. At this time, it is also possible to sandwich one of the surfaces of the first engagement surface 27 between the two sides of the engagement recess 28 and the second engagement surface 34 of the second engagement surface 34 between the sides of the engagement convex portion 35 One side is formed by a flat surface, rather than a curved surface corresponding to each other.

• The engagement convex portion 26 of the first link plate 22 and the engagement concave portion 33 of the second link plate 30 can also be omitted.

-The engaging concave portion 28 of the first link plate 22 and the engaging convex portion 35 of the second link plate 30 can also be omitted.

-The uneven surface provided on the first engagement surface 27 of the first link plate 22 and the second engagement surface 34 of the second link plate 30 does not need to be a curved surface. For example, the uneven surface provided on the first engagement surface 27 of the first link plate 22 and the second engagement surface 34 of the second link plate 30 may be a zigzag surface.

-The meshing chain 12 can also be equipped with rollers through which the connecting pin 23 is inserted.

-The chain members 12A and 12B which comprise the meshing chain 12 can also be two or more chain members.

-The engagement chain 12 can also be composed of two or more pairs of chain members 12A, 12B.

・A plurality of pairs of first link plates 22 can also be rotatably connected in series by connecting pins 23 and cylindrical bushes through which the connecting pins 23 are inserted, thereby forming a chain member 12A. The two link plates 30 are rotatably connected in series by the connecting pin 23 and the cylindrical bush through which the connecting pin 23 is inserted, thereby forming the chain member 12B. That is, the engaging chain 12 can also be a so-called bush type chain.

・The movable body moving device 11 can also be arranged to face any direction. For example, the movable body moving device 11 may be arranged so that the advancing and retracting direction Z coincides with the horizontal direction, or the movable body moving device 11 may be arranged so that the advancing and retracting direction Z intersects the horizontal direction.

11: movable body moving device 12: Engage chain 12A, 12B: chain parts 13: Containment Department 14: Joining links 15: movable body 16: sprocket 17: Induction board 18: Induced groove 19: opening 21: pin hole 22: The first link plate as a link plate 23: connecting pin 24: Cut undercut 25: The first meshing surface as the meshing surface 26: Engagement convex 27: The first engaging surface as the engaging surface 28: Engagement recess 29: pin hole 30: The second link plate as a link plate 32: The second engagement surface as the engagement surface 33: meshing recess 34: The second engaging surface as the engaging surface 35: Engagement convex 40: Link plate 41: meshing surface 42: snap-in surface X: divergent direction Y: front and back direction Z: direction of advance and retreat Z1: The way forward Z2: backward direction

FIG. 1 is a front view showing a state in which the engaging chain moves in the advancing direction in the movable body moving device of the embodiment. FIG. 2 is a front view showing a state where the engaging chain moves in the backward direction in the movable body moving device. 3 is a perspective view showing a part of an engagement chain constituting a movable body moving device. 4 is a perspective view of the first link plate. Fig. 5 is a perspective view of a second link plate. 6 is a perspective view showing a state when the first engagement surface of the first link plate is engaged with the second engagement surface of the second link plate. 7 is a perspective view showing a state when the first engagement surface of the first link plate is engaged with the second engagement surface of the second link plate. FIG. 8 is a perspective view showing a first link plate of a modified example. 9 is a perspective view showing a second link plate of a modified example. FIG. 10 is a perspective view of a first link plate showing another modified example. FIG. 11 is a perspective view showing a second link plate according to another modified example.

21: pin hole

22: 1st link plate

23: connecting pin

25: 1st engagement surface

26: Engagement convex

27: 1st engagement surface

29: pin hole

30: 2nd link plate

32: 2nd engagement surface

33: meshing recess

34: 2nd engagement surface

35: Engagement convex

Claims (5)

An engaging chain having at least one pair of chain members capable of advancing and retracting, a pair of the above-mentioned chain members are integrated with each other by moving in a forward direction, and on the other hand, the above-mentioned chain members are engaged with each other by the integration The state moves backwards to disengage the mutual engagement and diverge, and it is characterized by: Each chain member includes a plurality of link plates and a plurality of connecting pins, each of which has a pair of pin holes arranged in the advancing and retreating direction; each chain member is formed such that Multiple link plates are connected in series in a freely rotatable manner; Each link plate has an engagement surface at one end in the advancing and retracting direction, and an engaging surface at the other end in the advancing and retracting direction, the engaging surface extending in a direction perpendicular to the connecting pin; In a state where the paired chain members are engaged with each other and integrated, the chain members are engaged with the engagement surfaces of the link plates, and are engaged with the engagement surfaces of the link plates. ; Among the paired chain members, the link plate of the chain member on one side is a first link plate, and the link plate of the chain member on the other side is a second link plate, The engagement surface of the first link plate is the first engagement surface, The engagement surface of the second link plate is the second engagement surface, The first engagement surface is provided with an engagement recess, and the engagement recess extends along the first engagement surface, The second engaging surface is provided with an engaging convex portion that extends along the second engaging surface and is engaged with the card when the first engaging surface is engaged with the second engaging surface The recessed part fits. An engaging chain having at least one pair of chain members capable of advancing and retracting, a pair of the above-mentioned chain members are integrated with each other by moving in a forward direction, and on the other hand, the above-mentioned chain members are engaged with each other by the integration The state moves backwards to disengage the mutual engagement and diverge, and it is characterized by: Each chain member includes a plurality of link plates and a plurality of connecting pins, each of which has a pair of pin holes arranged in the advancing and retreating direction; each chain member is formed such that Multiple link plates are connected in series in a freely rotatable manner; Each link plate has an engagement surface at one end in the forward and backward directions, and an engagement surface at the other end in the forward and backward directions, the engagement surface extends in a direction perpendicular to the connecting pin, and the engagement surface is connected to the The pin extends in the vertical direction; In a state where the paired chain members are engaged with each other and integrated, the chain members are engaged with the engagement surfaces of the link plates, and are engaged with the engagement surfaces of the link plates. ; Among the paired chain members, the link plate of the chain member on one side is a first link plate, and the link plate of the chain member on the other side is a second link plate, The engagement surface of the first link plate is the first engagement surface, The engagement surface of the second link plate is a second engagement surface, The first engaging surface is provided with an engaging convex portion that extends along the first engaging surface, The second engaging surface is provided with an engaging concave portion that extends along the second engaging surface and is engaged with the engaging convex portion when the first engaging surface is engaged with the second engaging surface. The engagement chain as described in claim 1 or 2, wherein, The engaging surface is provided with a concave-convex surface which suppresses the positional deviation of the link plates engaged with each other on the engaging surface in the extending direction of the engaging surface. The engaging chain as described in claim 3, wherein, The uneven surface is a curved surface. A movable body moving device comprising the meshing chain described in claim 1 or 2 and a movable body connected to the meshing chain and capable of moving in the advancing and retreating direction of the meshing chain together with the meshing chain.

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