JP5372224B1 - Engagement chain type advance / retreat actuator - Google Patents

Abstract

[PROBLEMS] To prevent the noise caused by a roller of a meshing chain moving in the width direction of a storage guide rail and colliding with the storage guide rail, and to engage and retract the meshing chain type in which the disengagement portion of the meshing chain moves smoothly along the storage guide rail. Providing an actuating device;
Three or more storage guide rails 131 are juxtaposed in the chain width direction T corresponding to three or more rows of rollers (115A to 115C), and in the storage guide rail width direction W, a first storage guide rail 131A is provided. The storage guide rail width direction one side 131Aa of the second storage guide rail 131B protrudes from the storage guide rail width direction one side 131Ba of the second storage guide rail 131B to the width direction other side 131Bb, and some rows of rollers (115B) The meshing chain type advance / retreat operation device 100 in contact with the width direction one side 131Aa of the guide rail 131A, and the remaining rows of rollers (115A, 115C) are in contact with the width direction other side 131Bb of the second storage guide rail 131B.
[Selection] Figure 5

Description

  The present invention is used in manufacturing equipment in various manufacturing fields, transport equipment in the transport field, nursing care equipment in the medical and welfare field, stage equipment in the art field, etc. Relates to the device.

  Conventionally, a pair of meshing chains and a storage guide rail for storing the pair of meshing chains are provided, and the direction of the pair of meshing chains stored in the storage guide rail is changed while pulling out from the storage guide rails. Engage and move the meshed and integrated meshing part to the advancing / retreating direction advancing side, move the integrated meshing part to the retracting side of the advancing / retreating direction and change the direction to disengage, and store the disengaged part of the meshing An interlocking chain type advance / retreat operation device stored in a guide rail is known (for example, Patent Document 1).

As such a conventional meshing chain type advance / retreat operation device, for example, there is a meshing chain type advance / retreat operation device 500 as shown in FIG. 6 (A) and FIG. 6 (B).
Here, FIG. 6 (A) is a diagram showing the relationship between the storage guide rail 510 of the conventional meshing chain type advance / retreat operation device 500 and the roller 520 of the meshing chain, and FIG. 6 (B) is a diagram of FIG. It is a figure which shows the state which the roller 520 of the meshing chain advanced from the state of A) to the downstream side of the movement direction at the time of accommodation.

  As shown in FIGS. 6 (A) and 6 (B), in the conventional meshing chain type advance / retreat operation device 500, the roller 520 is stored in the storage guide rail 510 when the storage guide rail 510 stores the disengaged portion of the meshing chain. Move along.

JP 2012-31973

  However, the above-described conventional meshing chain type advance / retreat operation device 500 has a so-called clearance C, which is a gap between the roller 520 and the storage guide rail 510 in the storage guide rail width direction W depending on the processing accuracy and assembly accuracy of components. Since the structure is always provided, the roller 520 moves from one side of the storage guide rail in the width direction to the other side in the width direction or from the other side in the width direction to one side in the width direction. There was a problem that the noise caused by the collision at P1 to P4 was generated.

  If the clearance C is simply eliminated, the roller 520 at the disengagement portion of the meshing chain comes into contact with the storage guide rail 510 on both the storage guide rail width direction one side and the width direction other side when storing. There is a problem that the roller 520 of the meshing part of the meshing chain cannot rotate well and the meshing part of the meshing chain cannot move smoothly along the storage guide rail 510.

  Therefore, the present invention solves the problems of the prior art as described above, that is, the object of the present invention is to move the rollers of the meshing chain from the storage guide rail width direction one side to the width direction other side or the width direction. To provide a meshing chain type advance / retreat operation device that prevents noise caused by moving from the other side to one side in the width direction and colliding with a storage guide rail, and that the disengagement portion of the meshing chain moves smoothly along the storage guide rail. It is.

  The invention according to claim 1 includes a pair of meshing chains and a storage guide rail that stores the pair of meshing chains, and includes a pair of the meshing chains that are stored in the storage guide rail. While pulling out from the storage guide rail, change the direction and mesh, move the meshed and integrated mesh part to the advancing and retracting direction advance side, and move the integrated meshing part to the advancing and retracting direction retracting side and change the direction and bite In the interlocking chain type advance / retreat operation device in which the disengaged disengaged portion is accommodated in the accommodation guide rail, the engagement chain is arranged on the outer side of the pair of internal teeth plates in the chain width direction. A pair of external tooth plates, a connecting pin for connecting the pair of internal tooth plates and the pair of external tooth plates, and the pair of internal teeth And an internal tooth unit of the meshing chain composed of the pair of internal tooth plates and rollers is disposed in three or more rows in the chain width direction, and the storage guide rail is Three or more rows of internal tooth units corresponding to the rollers of the three or more rows are arranged side by side in the chain width direction. There are two types of corresponding first storage guide rails and second storage guide rails corresponding to the rollers of the internal gear units in the remaining rows of the three or more rows of internal gear units. In the storage guide rail width direction orthogonal to the longitudinal direction, one side of the storage guide rail width direction of the first storage guide rail is one side of the storage guide rail width direction of the second storage guide rail. The roller of the internal gear unit of the partial row protrudes to the other side in the width direction of the storage guide rail, and comes into contact with one side of the storage guide rail width direction of the first storage guide rail, and the internal teeth of the remaining rows The roller of the unit is provided in contact with the other side in the storage guide rail width direction of the second storage guide rail, thereby solving the above-described problem.

  According to the second aspect of the present invention, in addition to the configuration of the meshing chain type advance / retreat operation device according to the first aspect, the first storage guide rail and the second storage guide rail are alternately arranged in the chain width direction. By being provided, the above-described problems are further solved.

  In the invention according to claim 3, in addition to the configuration of the meshing chain type advance / retreat operation device according to claim 1 or 2, one of the first storage guide rail and the second storage guide rail is the chain. Since the other of the first storage guide rail and the second storage guide rail is disposed between the one storage guide rail at both ends of the chain width direction, the above-described problem is provided. Is a further solution.

  The meshing chain type advance / retreat operation device of the present invention includes a pair of meshing chains and a storage guide rail for storing the pair of meshing chains, thereby disengaging the pair of meshing chains stored in the storage guide rail. While pulling each part from the storage guide rail, change the direction and mesh, move the meshed and integrated mesh part to the advance side in the forward and backward direction, and change the direction while moving the integrated mesh part to the retracted side in the forward and backward direction In addition to being able to store the disengaged portion that has been disengaged in the storage guide rail, the following unique effects can be achieved.

According to the meshing chain type advance / retreat operation device of the first aspect of the present invention, the meshing chain includes a pair of internal tooth plates in the chain width direction and a pair of external tooth plates disposed outside the pair of internal tooth plates. A coupling pin for connecting the pair of internal tooth plates and the pair of external tooth plates, and a roller disposed between the pair of internal tooth plates, and a meshing chain comprising the pair of internal tooth plates and the roller. Three or more internal gear units are arranged in the chain width direction, and three or more storage guide rails are juxtaposed in the chain width direction corresponding to the rollers of the internal gear units of three or more rows. Corresponding to the rollers of the first storage guide rail corresponding to the rollers of the internal teeth units in a part of the internal tooth units and the rollers of the internal teeth units of the remaining lines of the internal teeth units of 3 or more. First There are two types of storage guide rails, the storage guide rail width direction perpendicular to the chain width direction and the chain longitudinal direction, and the storage guide rail width direction one side of the first storage guide rail is the storage guide rail of the second storage guide rail Projecting from one side in the width direction to the other side in the width direction of the storage guide rail, the rollers of some rows of the internal gear units come into contact with one side in the width direction of the storage guide rail of the first storage guide rail and The roller of the tooth unit is provided in contact with the other side in the width direction of the storage guide rail of the second storage guide rail, so that the disengaged portion of the engagement chain when viewed as the entire disengaged portion of the mesh chain. Since there is no unnecessary play (clearance) due to contact on both sides in the width direction, the roller on the part where the meshing chain is disengaged is the width of the storage guide rail. Meanwhile noise due to collisions with moving the storage guide rail from the other widthwise side or the other side in the widthwise direction from side to one side in the width direction can be prevented.
Furthermore, there is no play (clearance) when viewed as the entire disengaged part of the meshing chain, but there is play (clearance) between the rollers of each row and the corresponding storage guide rail, and the disengaged part is in the longitudinal direction of the chain. When moving, the rollers in each row rotate, so that the disengaged portion of the meshing chain can move smoothly along the storage guide rail.

  According to the meshing chain type advance / retreat operation device of the second aspect of the invention, in addition to the effect of the first aspect of the invention, the first storage guide rail and the second storage guide rail are alternately arranged in the chain width direction. As a result, the side where the roller contacts the storage guide rail in the width direction of the storage guide rail alternately changes in the width direction of the chain, and the posture with the longitudinal direction of the chain disengaged portion of the pair of meshing chains as the axis Since it is determined accurately, it is possible to prevent the disengagement part of the meshing chain from being twisted about the longitudinal direction of the chain and the roller from the storage guide rail width direction one side to the width direction other side or from the width direction other side to the width direction one side. Noise due to movement and collision with the storage guide rail can be prevented more reliably.

  According to the meshing chain type advance / retreat operation device according to the third aspect of the invention, in addition to the effect exhibited by the first or second aspect of the invention, one of the first storage guide rail and the second storage guide rail is The other end of the first storage guide rail and the second storage guide rail is disposed between the one storage guide rail at both ends of the chain width direction. One of the first storage guide rail and the second storage guide rail disposed on the side regulates the posture of the pair of meshing chains that are disengaged with respect to the longitudinal direction of the chain, and the posture of the unengaged portions is accurately determined. Therefore, it is possible to prevent the disengaged portion of the meshing chain from being twisted around the longitudinal direction of the chain and the roller from the one side in the width direction of the storage guide rail to the other in the width direction Noise caused by the collision with moving from a side or the other widthwise side to one widthwise side storage guide rail can be prevented more reliably.

The perspective view which shows the outline of the meshing chain type | formula advance / retreat operation apparatus which is an Example of this invention. The disassembled perspective view and perspective view of a pair of meshing chain used for a meshing chain type advance / retreat operation device. The front view which shows the 2nd storage guide rail seen with the code | symbol 3A of FIG. 1, and the front view which shows a 1st storage guide rail. The principal part expansion perspective view looked by the code | symbol 4 of FIG. Sectional drawing seen by the code | symbol 5-5 of FIG. 3 (A). The figure which shows the relationship between the accommodation guide rail of the meshing chain type | formula advance / retreat operation device of a prior art, and the roller of a meshing chain.

  The meshing chain type advance / retreat operation device according to the present invention includes a pair of internal teeth plates in the chain width direction, a pair of external teeth plates disposed outside the pair of internal teeth plates, and a pair of internal teeth plates. And a pair of external tooth plates, and a roller disposed between the pair of internal tooth plates, and the internal gear unit of the meshing chain comprising the pair of internal tooth plates and the roller has a chain width. Three or more rows are arranged in the direction, and three or more storage guide rails are juxtaposed in the chain width direction corresponding to the rollers of the three or more rows of internal gear units. A first storage guide rail corresponding to the rollers of the internal gear units in a part of the rows, and a second storage guide rail corresponding to the rollers of the internal gear units in the remaining rows of the three or more rows of internal gear units There are two types, the storage guide rail width direction perpendicular to the chain width direction and the chain longitudinal direction, where one side of the storage guide rail width direction of the first storage guide rail is from one side of the storage guide rail width direction of the second storage guide rail Projecting toward the other side of the storage guide rail in the width direction, the rollers of some rows of the internal gear units come into contact with one side of the storage guide rail in the width direction of the first storage guide rail, and the rollers of the internal gear units of the remaining rows. By providing the second storage guide rail in contact with the other side in the width direction of the storage guide rail, the roller of the disengagement portion of the meshing chain is moved from one side in the width direction of the storage guide rail to the other side in the width direction or the other side in the width direction. The side of the meshing chain moves from one side to the other and collides with the storage guide rail. As long as it moves smoothly along Lumpur, specific embodiments thereof are may be any one.

For example, one drive sprocket that transmits power such as a drive motor to the meshing chain may be disposed on each side of the pair of meshing chains, or one on one side.
The specific shapes of the plates such as the internal tooth plate and the external tooth plate used in the meshing chain type advance / retreat operation device of the present invention are made by integrating the same type of plates facing each other into a single unit and disengaging them. Any shape may be used as long as it branches off.
Further, the meshing chain may have a bush and the roller may be rotatably disposed on the outer periphery of the bush, or the roller may be rotatably disposed on the outer periphery of the connecting pin without the bush. It may be configured.
Further, the storage guide rail may have a curved section, or may have only a straight section without a curved section.

Hereinafter, an interlocking chain type advance / retreat operation device 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.
Here, FIG. 1 is a perspective view schematically showing a meshing chain type advance / retreat operation device 100 that is an embodiment of the present invention, and FIG. 2 (A) is a meshing chain type advance / retreat operation device that is an embodiment of the present invention. FIG. 2 (B) is a perspective view of a pair of meshing chains 110 of a meshing chain type advance / retreat operation device 100 according to an embodiment of the present invention. FIG. 3A is a front view showing the second storage guide rail 131B viewed by reference numeral 3A in FIG. 1, and FIG. 3B shows the first storage guide with the second storage guide rail 131B removed. 4 is a front view showing the rail 131A, FIG. 4 is an enlarged perspective view of a main part seen through reference numeral 4 in FIG. 1, and FIG. 5 is a cross-sectional view taken along reference numeral 5-5 in FIG. is there.
In FIG. 1, in order to facilitate understanding of the invention, the storage case 132 is not shown in one of the two chain storage portions 130 of the meshing chain type advance / retreat operation device 100.

As shown in FIGS. 1 to 5, the meshing chain type advance / retreat operation device 100 according to the embodiment of the present invention includes a pair of meshing chains 110 and a storage guide rail that has a curved section and houses the pair of meshing chains 110. 131.
Then, the meshing portions 110H of the pair of meshing chains 110 stored in the storage guide rails 131 are engaged with each other while pulling from the storage guide rails 131 while changing their directions, and the meshing portions 110G that are meshed and integrated are moved forward and backward. The integrated engagement portion 110G is moved to the retracting side in the forward / backward direction to change the direction to be disengaged, and the disengaged disengagement portion 110H is stored in the storage guide rail 131.

As shown in FIG. 1, specifically, the meshing chain type advance / retreat operation device 100 includes a pair of meshing chains 110, an actuated portion 120, a chain storage portion 130, a speed reduction unit 140, and a base 150. ing.
Of these, the actuated portion 120 is attached to the tip of the pair of meshing chains 110 on the advancing / retreating direction, moves in the advancing / retreating direction S with respect to the base 150, and moves a workpiece (not shown) in the advancing / retreating direction S.

Two chain storage portions 130 are attached to the base 150. As an example, a first storage guide rail 131A, which is a plate-shaped storage guide rail 131 having a groove, and the first storage guide rail 131A, A second storage guide rail 131B having a similar plate shape and disposed on both sides of the plate surface of the first storage guide rail 131A, and a storage case 132 covering the first storage guide rail 131A and the second storage guide rail 131B. It is configured.
A detailed description of the relationship between the first storage guide rail 131A and the second storage guide rail 131B will be described later.
The speed reduction unit 140 is attached to the base 150 and includes a drive motor 141 and a speed reduction mechanism 142.

Here, the pair of meshing chains 110 used in the meshing chain type advance / retreat operating device 100 will be described.
As shown in FIGS. 2A and 2B, the pair of meshing chains 110 includes one meshing chain 110A and the other meshing chain 110B.
One (one) meshing chain 110 </ b> A of the pair includes, for example, an internal tooth plate 111, an external tooth plate 112, a bush 113, a connecting pin 114, and a roller 115.

Among these, the internal tooth plate 111 is spaced apart by a pair in the chain width direction T, and has bush holes disposed in the front and rear of the chain longitudinal direction.
In addition, a pair of external tooth plates 112 are disposed outside the pair of internal tooth plates 111 and have pin holes disposed in the longitudinal direction of the chain.

Then, both ends of the bush 113 that is rotatably inserted into the roller 115 are press-fitted into the bush holes of the pair of internal tooth plates 111, and the connecting pin 114 is rotatably inserted into the bush 113 to connect the connecting pin 114. Is press-fitted into the pin holes of the pair of external tooth plates 112, whereby the internal tooth plate 111 and the external tooth plate 112 are connected in the chain longitudinal direction R.
Furthermore, the internal tooth unit U which consists of a pair of internal tooth plate 111, the bush 113, and the roller 115 is comprised by the chain width direction T at 3 rows.
In the present embodiment, the internal tooth unit U is composed of three rows of the first row of internal gear units UA to the third row of internal gear units UC. Needless to say.

  For example, when the drive motor 141 of the speed reduction unit 140 is driven to rotate forward, the power of the drive motor 141 is disengaged between the pair of mesh chains 110 housed in the two chain housing portions 130 via a drive sprocket (not shown). Each of the disengagement portions 110H is pulled out and moved to one end side in the chain longitudinal direction (advancing and retreating direction advance side) on the engagement portion 110G side of the engagement chain 110A (110B).

Then, while the disengagement portion 110H is moved by receiving power, the two engagement grooves (not shown) are sequentially meshed and integrated with each other, and the integrated engagement portion 110G moves toward the advancing / retreating direction advance side.
On the other hand, when the drive motor 141 is driven in the reverse direction, the meshing portions 110G of the pair of meshing chains 110 receive power and move toward the retracting side in the forward / backward direction, and are disengaged from each other by a branch of a single guide groove (not shown). The disengaged portions 110H are configured to move to the other end side in the chain longitudinal direction (retreat side in the forward / backward direction) and be accommodated in the two chain accommodating portions 130, respectively.

Next, the relationship between the roller 115 of the meshing chain 110A (110B) and the storage guide rail 131 will be described in detail.
As shown in FIGS. 1 to 5, three storage guide rails 131 are arranged side by side in the chain width direction T corresponding to the rollers 115 of the three rows of internal gear units U (UA to UC).
The number of storage guide rails 131 may be three or more in the chain width direction T corresponding to the rollers 115 of three or more rows of internal gear units U (UA to UC).

Furthermore, the storage guide rail 131 is a first corresponding to the second row of rollers 115B of the second row of internal gear units UB, which is a partial row of the three or more rows of internal gear units U (UA to UC). The storage guide rail 131A, the first row of rollers 115A and the third row of internal gear units of the first row of internal gear units UA that are the remaining rows of the three or more rows of internal gear units U (UA to UC). There are two types, the second storage guide rail 131B corresponding to the roller 115C in the third row of UC.
Further, in the storage guide rail width direction W orthogonal to the chain width direction T and the chain longitudinal direction R, the storage guide rail width direction one side 131Aa of the first storage guide rail 131A is the storage guide rail width of the second storage guide rail 131B. One side 131Ba in the direction protrudes from the other side 131Bb in the width direction of the storage guide rail.

Then, the rollers 115B in the second row of the internal gear units UB in the second row, which are a part of the rows, come into contact with the one side 131Aa in the storage guide rail width direction of the first storage guide rail 131A, and the second row 115A is the remaining row. The first row of rollers 115A of the first row of internal gear units UA and the third row of rollers 115C of the third row of internal gear units UC make contact with the other side 131Bb of the second storage guide rail 131B in the width direction of the storage guide rail. Is provided.
Thereby, when viewed as the entire disengagement portion 110H of the engagement chain 110A (110B), the disengagement portion 110H comes into contact with both sides of the storage guide rail in the width direction, thereby eliminating unnecessary play (clearance).

In particular, when the storage guide rail 131 has a curved section and the direction in which the weight of the disengagement portion 110H of the engagement chain 110A (110B) acts is switched in the storage guide rail width direction W, the engagement chain 110A (110B) ) Is effective in the case of a structure in which an inertial force or the like acts on the disengagement portion 110H.
Further, the engagement portion 110G side of the engagement chain 110A (110B) is one end side in the longitudinal direction of the chain, and when the engagement portion 110H of the engagement chain 110A (110B) is stored, it is the other end side in the longitudinal direction of the engagement portion 110H. The direction of the path of the storage guide rail 131 is provided so that the weight or sliding resistance on the rear end side (the front end side in the moving direction during storage) acts on one end side in the longitudinal direction of the chain (the rear end side in the moving direction during storage). It is also effective when it is.
In addition, the sliding resistance on the rear end side (the leading end side in the moving direction during storage) of the disengagement portion 110H on the other end side in the longitudinal direction of the chain acts on one end side in the chain longitudinal direction (the rear end side in the moving direction during storage). It is also effective in cases.

  Here, when viewed as the entire disengagement portion 110H of the engagement chain 110A (110B), there is no play (clearance), but when the disengagement portion 110H moves to one side in the longitudinal direction of the chain, the first row of rollers 115A and the first row The three rows of rollers 115C come in contact with the other side 131Bb of the second storage guide rail 131B in the width direction of the storage guide rail and rotate in one direction, and the second row of rollers 115B rotates in the storage guide of the first storage guide rail 131A. It contacts the rail width direction one side 131Aa and rotates in the direction opposite to the rotation direction of the first row of rollers 115A and the third row of rollers 115C.

  Similarly, when the disengagement part 110H moves to the other side in the longitudinal direction of the chain, the first row of rollers 115A and the third row of rollers 115C come into contact with the other side 131Bb of the second storage guide rail 131B in the storage guide rail width direction, respectively. As a result, the second row of rollers 115B contacts the one side 131Aa in the storage guide rail width direction of the first storage guide rail 131A. The first row of rollers 115A and the third row of rollers 115C rotate in the opposite direction.

  In other words, there is no play (clearance) when viewed as the entire disengagement portion 110H of the meshing chain 110A (110B), but there is play (clearance) between the rollers 115 in each row and the corresponding storage guide rail 131. When the disengagement portion 110H moves in the longitudinal direction R of the chain, the rollers 115 in the individual rows rotate respectively.

  Further, for example, a sensor striker capable of coming into contact with the contact type sensor is attached to the rear end of the engagement chain 110A (110B) in the longitudinal direction of the chain, and the engagement portion 110H of the engagement chain 110A (110B) is stored. Thus, when the rear end (the front end when moving in the retracting direction) of the engagement portion 110H of the engagement chain 110A (110B) reaches a predetermined position, it comes into contact with a contact sensor disposed at the predetermined position. When configured, the engagement chain 110A (110B) has no play (clearance) when viewed as a whole, and the position of the sensor striker is not greatly shifted in the longitudinal direction R of the chain. Can be used for high-precision positioning of the actuated part 120 at the tip, which is the advancing side Kill.

Furthermore, in this embodiment, the first storage guide rails 131A and the second storage guide rails 131B are alternately arranged in the chain width direction T.
As a result, the side where the roller 115 contacts the storage guide rail 131 in the storage guide rail width direction W is alternately changed in the chain width direction T, and the chain longitudinal direction R of the disengagement portion 110H of the pair of engagement chains 110 is used as an axis. The posture is accurately determined.
That is, the disengagement part 110H of the engagement chain 110A (110B) is not twisted.

In the present embodiment, the second storage guide rail 131B, which is one of the first storage guide rail 131A and the second storage guide rail 131B, is disposed at both ends in the chain width direction, and the first storage guide rail 131A and the second storage guide rail 131A. The first storage guide rail 131A, which is the other of the storage guide rails 131B, is disposed between the second storage guide rails 131B at both ends in the chain width direction.
As a result, one of the first storage guide rail 131A and the second storage guide rail 131B disposed at both ends in the chain width direction regulates the attitude of the pair of meshing chains 110 with respect to the longitudinal direction R of the chain disengagement portion 110H. Thus, the posture of the disengagement portion 110H is determined with high accuracy.

In this embodiment, the first storage guide rail 131A is formed in a plate shape having a groove and has a storage guide rail width direction one side 131Aa and a width direction other side 131Ab. The storage guide rail width direction one side 131Aa with which the second row roller 115B comes into contact is sufficient, and the width direction other side 131Ab with which the second row roller 115B does not come into contact is not necessary.
Further, the first storage guide rail 131A and the second storage guide rail 131B are screwed to the chain storage portion 130, respectively, and the position of the first storage guide rail 131A is adjusted by loosening the screw to the position of the second storage guide rail 131B. It is assumed that the position can be finely adjusted in the storage guide rail width direction W with respect to the position.

  The meshing chain type advance / retreat operation device 100 according to the embodiment of the present invention thus obtained includes a meshing chain 110A (110B) having a pair of internal tooth plates 111 in the chain width direction T and the pair of internal tooth plates. 111, a pair of external tooth plates 112 disposed on the outside, a connection pin 114 for connecting the pair of internal tooth plates 111 and the pair of external tooth plates 112, and a roller disposed between the pair of internal tooth plates 111. 115, the internal gear unit U of the meshing chain 110A (110B) made up of a pair of internal gear plates 111 and rollers 115 is arranged in three or more rows in the chain width direction T, and the storage guide rail 131 is 3 Three or more rows of internal teeth units U are arranged in parallel in the chain width direction T corresponding to the rollers 115 of the rows of internal teeth units U or more. UA to UC), the first storage guide rail 131A corresponding to the second row of rollers 115B of the second row of internal gear units UB, which is a partial row, and three or more rows of internal gear units U (UA to UA). UC), the second storage guide rail 131B corresponding to the first row of rollers 115A of the first row of internal gear units UA and the third row of rollers 115C of the third row of internal gear units UC. The storage guide rail width direction one side 131Aa of the first storage guide rail 131A is the second storage guide rail 131B in the storage guide rail width direction W perpendicular to the chain width direction T and the chain longitudinal direction R. The storage guide rail width direction one side 131Ba protrudes from the storage guide rail width direction other side 131Bb to the second row row of the internal gear unit UB of the second row, which is a partial row. 115B is in contact with the storage guide rail width direction one side 131Aa of the first storage guide rail 131A, and the first row of rollers 115A and the third row of internal gear units UA of the first row of internal gear units UA which are the remaining rows. The rollers 115C in the third row of UC are provided in contact with the other side 131Bb in the storage guide rail width direction of the second storage guide rail 131B, so that the rollers 115 of the engagement portion 110H of the engagement chain 110A (110B). (115A to 115C) move from the storage guide rail width direction one side (131Aa, 131Ba) to the other width direction side (131Ab, 131Bb) or from the other width direction side (131Ab, 131Bb) to one side (131Aa, 131Ba) and store. Noise from collision with the guide rail 131 can be prevented, and the meshing check 110 </ b> A (110 </ b> B) can be smoothly moved along the storage guide rail 131.

  Further, the first storage guide rail 131A and the second storage guide rail 131B are alternately arranged in the chain width direction T, so that the disengagement portions 110H of the engagement chain 110A (110B) are oriented in the longitudinal direction R of the chain. As well as the rollers 115 (115A to 115C) from the storage guide rail width direction one side (131Aa, 131Ba) to the width direction other side (131Ab, 131Bb) or the width direction other side (131Ab, 131Bb). Noise caused by moving to one side (131Aa, 131Ba) in the width direction and colliding with the storage guide rail 131 can be more reliably prevented.

  In addition, one of the first storage guide rail 131A and the second storage guide rail 131B is disposed at both ends of the chain width direction, and the other of the first storage guide rail 131A and the second storage guide rail 131B is at both ends of the chain width direction. By being disposed between the second storage guide rails 131B, it is possible to prevent the disengagement portion 110H of the engagement chain 110A (110B) from being twisted about the chain longitudinal direction R as well as the rollers 115 (115A to 115C). ) Moves from one side (131Aa, 131Ba) in the width direction of the storage guide rail to the other side (131Ab, 131Bb) in the width direction or from one side (131Ab, 131Bb) in the width direction to one side (131Aa, 131Ba) in the width direction. More reliably prevent noise caused by collision with 131 Runado, the effect is enormous.

100 ... meshing chain type advance / retreat operation device 110 ... a pair of meshing chains 110A ... one meshing chain 110B ... the other meshing chain 110G ... a meshing part 110H ... a meshing disengagement part 111 Internal tooth plate 112 ... External tooth plate 113 ... Bush 114 ... Connecting pin 115 ... Roller 115A ... First row roller 115B ... Second row roller 115C ... First Three rows of rollers 120 ... actuated part 130 ... chain storage part 131 ... storage guide rail 131A ... first storage guide rail 131Aa ... width direction one side 131Ab ... width direction other side 131B ... Second storage guide rail 131Ba ... One side in the width direction 131Bb ... The other side in the width direction 132 ... Storage case 140 ... Deceleration unit 141 ... Drive motor 142 ... Deceleration mechanism 150 ... Base 500 ... (prior art) meshing chain type advance / retreat operation device 510 ... Storage guide rail 520 Roller C (of meshing chain) Clearances P1 to P4 ... Contact point R (with roller and storage guide rail) Chain longitudinal direction S ... Advancing / retracting direction T ... Chain width direction U ... Internal tooth unit UA ... First row of internal gear units UB ... Second row of internal gear units UC ... Third row of internal gear units W ... Storage guide rail width direction

Claims (3)

A pair of meshing chains and a storage guide rail for storing the pair of meshing chains are provided, and each of the paired meshing chains stored in the storage guide rail is pulled out of the storage guide rail while being pulled out from the storage guide rail. Change the meshing part, move the meshing part that is meshed and integrated to the advancing / retreating direction advance side, change the direction while moving the integrated meshing part to the retracting side for the advancing / retreating direction, and disengage the part that is disengaged In the interlocking chain type advance / retreat operation device that stores the in the storage guide rail,
The meshing chain connects a pair of internal tooth plates in the chain width direction, a pair of external tooth plates disposed outside the pair of internal tooth plates, and the pair of internal tooth plates and the pair of external tooth plates. And a plurality of internal teeth units of the meshing chain composed of the pair of internal teeth plates and rollers are arranged in three or more rows in the chain width direction. Established,
Three or more storage guide rails are juxtaposed in the chain width direction corresponding to the rollers of the three or more rows of internal gear units, and some of the three or more rows of internal gear units There are two types, a first storage guide rail corresponding to the rollers of the internal gear unit, and a second storage guide rail corresponding to the rollers of the internal gear units in the remaining rows of the three or more rows of internal gear units,
In the storage guide rail width direction orthogonal to the chain width direction and the chain longitudinal direction, the storage guide rail width direction one side of the first storage guide rail is stored in the storage guide rail width direction one side of the second storage guide rail. The roller of the internal gear unit of the partial row protrudes to the other side of the rail width direction and contacts the one side of the storage guide rail width direction of the first storage guide rail, and the roller of the internal gear unit of the remaining row Is provided in contact with the other side in the width direction of the storage guide rail of the second storage guide rail.   The meshing chain type advance / retreat operation device according to claim 1, wherein the first storage guide rail and the second storage guide rail are alternately arranged in the chain width direction.   One of the first storage guide rail and the second storage guide rail is disposed at both ends of the chain width direction, and the other of the first storage guide rail and the second storage guide rail is the one of the both ends of the chain width direction. The interlocking chain type advance / retreat operation device according to claim 1, wherein the interlocking chain type advance / retreat operation device is disposed between the storage guide rails.

Images