JP2001138149A - Method and device for assembling belt for continuously variable transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and device for assembling a belt for a continuously variable transmission allowing to be bound by a laminated ring in a state of each element closely contact to each other and easy assembling of the belt for the continuously variable transmission of high precision by binding the elements of an amount corresponding to the length of a periphery of the laminated ring. SOLUTION: Multiple elements 3 are annularly piled up and pressurized from a head 9 side to a body 6 side to bring each element 3 into close contact to each other to integrally clamp them. The diameter of laminated rings 4, 5 opposing to each of both recessed parts 7, 8 of the clamped element 3 is enlarged to be a diameter corresponding to that of both recessed parts 7, 8 over the whole width. Laminated rings 4, 5 enlarged are pressurized toward both recessed parts 7, 8 of the element 3 and inserted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for assembling a belt for a continuously variable transmission that transmits power across pulleys of a continuously variable transmission.

[0002]

2. Description of the Related Art In a continuously variable transmission used as a power transmission mechanism of an automobile, generally, a plurality of annularly stacked elements are formed by integrally binding a stack of plate-like rings by a stacking ring. Belt is adopted.

[0003] Conventionally, it is known to assemble a belt for a continuously variable transmission of this kind as disclosed in Japanese Utility Model Laid-Open No. 59-22344. That is, first, a plurality of elements are held in a state of being stacked annularly in an annular support groove formed in the block stand. At this time, the recess formed in each element is continuously opened in a ring shape. Next, the lamination ring is pressed toward the continuous recess and inserted into the recess. At this time, the laminated ring is guided toward the concave portion while being expanded to a diameter corresponding to the concave portion of the element by an annular guide having a tapered guide surface whose diameter gradually increases in the insertion direction.

[0004] However, if a gap smaller than the thickness of one element is formed between the elements accommodated in the support groove of the block stand due to a thickness error of each element, the element is inserted into the gap. Each element cannot be brought into close contact with each other by insertion, and when the elements are bound by a lamination ring, the distance between the elements becomes excessively large, and the performance of the belt is disadvantageously deteriorated.

[0005] For example, in an element provided with dimples and holes on the front and back surfaces of an element head (see, for example, JP-A-63-57942 and JP-A-5-34354), the dimples are obstructive. As a result, it is difficult to hold a predetermined number of elements in the support groove of the block stand.

Further, since the diameter of the laminated ring is expanded by the annular guide having the tapered guide surface, for example, when the peripheral length of the laminated ring varies, the laminated ring has a relatively small peripheral length. It is difficult to smoothly expand the diameter of the guide ring along the large-diameter portion of the guide surface of the guide, and it is impossible to slide the lamination ring having a relatively small circumference along the guide surface of the guide. If the diameter is increased, the laminated ring may be damaged.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention makes it possible to bind the elements with a lamination ring in a state where the elements are in close contact with each other. An object of the present invention is to provide a method and an apparatus for assembling a belt for a continuously variable transmission, which can be easily assembled into a belt for a continuously variable transmission with high accuracy.

[0008]

In order to achieve the above object, according to the present invention, a plate-like element having a body and a head connected to the body via a pair of recesses is laminated in an annular shape. In a method for assembling a continuously variable transmission belt formed by inserting a pair of laminated rings formed by laminating plate-shaped rings of a predetermined width into both concave portions of the element, Are positioned on the inner peripheral side, are stacked in an annular shape, each element is pressed from the head side and moved toward the body side so that the elements are brought into close contact with each other and clamped together, and A step of expanding the diameter of each of the laminated rings opposed to each of the concave portions to a diameter corresponding to each of the concave portions over the entire width; and pressing each of the enlarged laminated rings toward both of the concave portions of the element. Characterized in that it comprises a step of inserting a ring into the recess.

According to the method of the present invention, first, a plurality of elements are clamped in a state of being stacked in an annular shape with the body side positioned on the inner peripheral side. At this time, each element is pressed from the head side to the body side to bring the elements into close contact with each other. Thereby, there is no gap between the elements, and the diameter of the concave portion of each continuous element is sufficiently reduced by being laminated.

Next, each of the laminated rings positioned opposite to each of the concave portions that are continuous on both sides of the clamped element is expanded to a diameter corresponding to the concave portion. At this time, since the diameter of the laminated ring is increased over its entire width, compared to the case where the diameter is increased while moving along the inclined surface as in the related art,
The diameter of the lamination ring can be sufficiently increased without damaging it.

Since the diameter of the continuous concave portion formed by stacking the respective elements has been sufficiently reduced, even if the diameter of the lamination ring is relatively small, each of the clamped members has a smaller diameter. The lamination ring can be easily inserted into the continuous concave portion of the element, and a highly accurate belt can be easily assembled.

Further, in the step of inserting each laminated ring into both concave portions of the element in the method of the present invention, it is preferable to press the laminated ring toward the concave portion while detecting a load applied to the laminated ring. For example, if there is an inconsistency between the diameter of the laminated ring and the diameter of the continuous concave portion of the element, there is an excessively large load on the laminated ring, so by detecting this load The occurrence of defective products can be prevented.

The present invention also provides a plate-like element having a body and a head connected to the body via a pair of recesses in an annular shape.
In the assembling apparatus for a continuously variable transmission belt formed by inserting a pair of laminated rings formed by laminating plate-shaped rings having a predetermined width, the body side is located on the inner peripheral side, and each of the two concave portions is An element holding means for movably holding an annularly stacked element from the head side to the body side in a vertically open position, and an annularly stacked element provided on the element holding means, wherein the annularly stacked element is provided from the head side. An element pressing means for pressing and moving the elements toward the body side so as to bring the respective elements into close contact with each other and to clamp them together; and an element provided at a position below the element holding means. The present first collet and a lamination ring attached to the first collet by expanding the diameter of the first collet are combined with an annularly laminated element. A first expanding means for expanding the entire width of the lamination ring to a diameter corresponding to the portion, and a second expanding means provided at a position above the element holding means and having the other lamination ring mounted on the outer periphery and capable of expanding the diameter. A second collet and a second ring which expands the diameter of the second collet to expand the lamination ring attached to the second collet over the entire width of the lamination ring to a diameter corresponding to the concave portion of the annularly laminated element. Diameter increasing means, first ring pressing means for abutting against the lower edge of the lamination ring mounted on the first collet, pressing the lamination ring toward the recess and inserting the lamination ring into the recess, A second ring pressing means for contacting the upper edge of the lamination ring mounted on the two collets, pressing the lamination ring toward the recess, and inserting the lamination ring into the recess is provided.

According to the apparatus of the present invention, first, a plurality of elements are stacked in a ring shape and held movably from the head side to the body side by the element holding means. At this time, each element is positioned such that its body side is located on the inner peripheral side and each of the two concave portions is opened in the vertical direction, so that the concave portions can continuously insert the laminated ring. Then, the annularly stacked elements are pressed from the head side toward the body side by the element pressing means provided in the element holding means. As a result, each element moves from the head side to the body side, and the elements are tightly adhered to each other and are integrally clamped. At this time, the continuous concave portions are sufficiently reduced in diameter by the elements being in close contact with each other. Moreover, the element holding means is
Since a plurality of elements are movably held from the head side toward the body side and then clamped by the element pressing means, when a plurality of elements are stacked and arranged prior to the clamping, a certain gap is provided between the elements. And can be laminated. Thus, for example, even if dimples and holes are formed on the front and back surfaces of the head of the element, the elements can be easily arranged in a stacked manner. Thereafter, each element is directed from the head side to the body side by the element pressing means. Therefore, the dimples and the holes of the respective elements can be easily clamped in close contact with the engaged state.

[0015] One of the lamination rings is mounted on the first collet, and the lamination ring is opposed to a continuous concave portion which is opened below the clamped element from below and clamped by the first collet. The diameter of the lamination ring is expanded to the diameter corresponding to the concave portion of the element by the diameter expanding means over the entire width of the lamination ring.

Similarly, the second collet is mounted with the other lamination ring, and the lamination ring is opposed to a continuous concave portion opened above the clamped element from above, and further, The second diameter expanding means expands the laminated ring to a diameter corresponding to the concave portion of the element over the entire width of the laminated ring. Subsequently, the first ring pressing unit and the second ring pressing unit press each laminated ring toward the concave portion, and insert the laminated ring into the concave portion.

As described above, each laminated ring is supported by each collet, and the diameter of the laminated ring is expanded via the collet by the respective diameter expanding means. Therefore, each laminated ring can be easily expanded sufficiently over its entire width. Can be diameter. In addition, even if the circumferential length of each lamination ring varies and the circumference is relatively small, the lamination ring can be easily held by the collet when the diameter of the collet is reduced. Also, even when the diameter of the lamination ring is expanded, since each of the annular elements is sufficiently reduced in diameter by the element pressing means, the amount of expansion of the lamination ring by the collet is made relatively small so that the concave portion of the element can be smoothly placed. Can be inserted.

Further, in the device of the present invention, the element has a pair of inclined edges which are inclined in a direction converging toward the center of the head, and is in contact with a pulley of the continuously variable transmission at a side edge of the body. A pair of inclined edges forming a V-plane, wherein the element pressing means corresponds to the lower inclined edge of the head when the element is held by the element holding means. A first head holder having a first inclined surface slidably in contact with the head, and a first head holder provided opposite to the first head holder and sliding on the inclined edge corresponding to an inclined edge on an upper side of the head. By moving in a direction approaching the first head holder with a second inclined surface movably contacting the head, the distance between the first inclined surface and the second inclined surface is reduced, and the head of the element is moved in the body direction. Press the second head A first inclined surface slidably contacting the inclined edge corresponding to a lower inclined edge of the body, the first element holding means being vertically movable in a vertical direction. A body holder and a second inclined surface provided opposite to the first body holder and slidably in contact with the inclined edge corresponding to the upper inclined edge of the body; And a second body holder.

According to the present invention, the body of the element is held between the first body holder and the second body holder of the element holding means. On the other hand, the head of the element is held between the first head holder and the second head holder of the element pressing means. The element pressing means presses the element head in the body direction and clamps the element head by bringing the second head holder closer to the first head holder. That is, when the head of the element is sandwiched between the first head holder and the second head holder, and the second head holder is brought close to the first head holder, the upper inclined edge of the head of the element becomes the second head holder. The element slides along the second inclined surface of the head holder, and at the same time, the lower inclined edge of the head of the element slides along the first inclined surface of the first head holder. As a result, the head of the element is pressed in the body direction. In addition, following the movement of the body,
The first body holder and the second body holder move to maintain the holding state of the body.

As described above, according to the present invention, the element can be pressed by the first head holder and the second head holder of the element pressing means using the pair of inclined edges of the head of the element. In addition, the element can be pressed and securely clamped only by bringing the first head holder and the second head holder close to each other, so that the device configuration can be simplified.

In the apparatus of the present invention, the first
It is preferable to include a load detecting unit that detects a load applied to the laminated ring when the laminated ring is pressed by the ring pressing unit and the second ring pressing unit. Thereby, when inserting each laminated ring into both concave portions of the element, the laminated ring can be pressed toward the concave portion while detecting the load applied to the laminated ring. And at this time, if the load on the lamination ring becomes excessively large,
For example, it is possible to determine that there is a galling in the concave portion of the laminated ring or that the diameter of the laminated ring is inconsistent with the diameter of the continuous concave portion of the element, thereby preventing the occurrence of defective products.

[0022]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory longitudinal sectional view showing an apparatus configuration of the present embodiment, FIG. 2 is an explanatory view showing an operation of the apparatus shown in FIG. 1, FIG. 3 is an explanatory view showing a belt assembling process by the present apparatus.
FIG. 4 is an explanatory view showing the belt assembling process following FIG. 3, and FIG.
FIG. 2 is an explanatory view showing a part of a continuously variable transmission belt assembled according to the embodiment.

The apparatus 1 of this embodiment shown in FIG. 1 is for assembling a continuously variable transmission belt 2 partially shown in FIG. The continuously variable transmission belt 2 is bound by lamination rings 4 and 5 in a state in which a plurality of elements 3 are laminated in an annular shape. The element 3 is formed by stamping a metal plate, and includes a body 6 and a head 9 connected to the body 6 via a pair of recesses 7 and 8. The body 6 is formed with a pair of inclined edges 10 and 11 serving as V surfaces that are in contact with pulleys of a continuously variable transmission that is a power transmission mechanism of an automobile (not shown). The head 9 has a pair of inclined edges 12 and 13 which are inclined in a direction converging toward the tip.
Further, laminated rings 4 and 5 formed by laminating a plurality of metal plate rings 14 are stretched over the recesses 7 and 8 with tension. In order to position each element 3 in a laminated state, the head 9 of each element 3 has a dimple 15 protruding in the laminating direction and a hole formed on the opposite side of the dimple 15 and corresponding to the dimple 15. 16 are formed.

As shown in FIG. 1, the apparatus 1 according to the present embodiment comprises a base 17 provided on the bottom side,
7 and a side wall 18 extending in the upright direction from the peripheral edge of
A first head holder 19 for mounting the head 9 of the element 3 is formed on the upper end of the side wall portion 18. The first head holder 19 has a first inclined surface 20 formed along an inner peripheral edge thereof. The first inclined surface 20 abuts one inclined edge 12 (located on the lower side in FIG. 1) of the head 9 of the element 3 to support the inclined edge 12 slidably.

Above the first head holder 19, an annular second head holder 21 is attached via a bolt 22 so as to be vertically movable. The second head holder 21 has a second inclined surface 23 formed along an inner peripheral edge thereof. The second inclined surface 23 comes into contact with the other inclined edge 13 (located on the upper side in FIG. 1) of the head 9 of the element 3. The first head holder 19 and the second
The head holder 21 constitutes the element pressing means of the present invention. In the present embodiment, the bolt 22
The second head holder 21 is pushed down in a direction approaching the first head holder 19 by the operation described above. However, the second head holder 21 is pushed down by using another pushing-down means (for example, a cylinder or a motor) instead of the bolt 22. You may make it move to a lowering direction.

The first head holder 19 and the second head holder 21 are opposed to each other, and a first body holder 24 for holding the body 6 of the element 3 and a second A body holder 25 is provided. The first body holder 24 is movably mounted on an upper edge of a first collet 26 to be described later, and slides on one inclined edge 10 (located on the lower side in FIG. 1) of the body 6 of the element 3. It has a first inclined surface 27 that freely contacts. Further, the second body holder 25 is mounted on the upper part of the body 6 of the element 3 mounted on the first body holder 24, and is attached to the other inclined edge 11 (located on the upper side in FIG. 1) of the body 6. It has a second inclined surface 28 that slidably abuts. The first body holder 24 and the second
The body holder 25 constitutes the element holding means of the present invention.

The first collet 26 is formed so as to be able to expand in diameter. One of the laminated rings 4 is mounted on the outer periphery of the first collet 26 at a position below the first body holder 24. Further, between the first collet 26 and the side wall portion 18 of the base portion 17, the laminated ring 4 attached to the first collet 26 is provided.
The first insert holder 29, which is a first ring pressing means for raising the pressure, is provided so as to be able to move up and down. The first insert holder 29 is integrally connected to an outer periphery of a first support shaft 31 that is vertically guided along an inner peripheral wall 30 of the base portion 17.

A second support shaft 33 which is movable in the axial direction of the first support shaft 31 (vertical direction in FIG. 1) is externally inserted through a linear stroke bearing 32 on the peripheral wall of the first support shaft 31. I have. The second support shaft 33 is connected to the first collet 26.
The first collet inner 34 which is the first diameter expanding means for expanding the diameter
Is provided integrally. The first collet inner 34 is urged upward by a spring 35 provided on the base portion 17.

A second collet 35 is formed on the upper part of the second body holder 25 so as to be able to expand in diameter. The second collet 35 is provided with another laminated ring 5 on its outer periphery. . The second collet 35 and the second support shaft 3
A second collet inner 36 as a second diameter expanding means is slidably inserted along the axial direction of the second support shaft 33 between the second support shaft 33 and the second support shaft 33. The upper part of the second collet inner 36 is screwed to the outer wall of the second support shaft 33 so that the second collet inner 3
An annular depressing member 37 for depressing 6 is provided.
By rotating the pressing member 37, the inner diameter of the second collet 35 can be expanded by pressing down the second collet inner 36, and at the same time, the second support shaft 33 rises relative to the second collet 35. And the first collet inner 3
4 rises, and the diameter of the first collet 26 can be expanded. In the present embodiment, the pressing member 37
The collet inners 34 and 36 are moved by operating the pressing member 37.
Alternatively, both collet inners 34 and 36 may be moved by using a means (for example, a cylinder or a motor) instead of.

Further, between the second collet 35 and the second head holder 21, a second insert holder 38 as a second ring pressing means for pressing down the lamination ring 5 mounted on the second collet 35 is provided. Are provided so as to be movable up and down. The second insert holder 38 is provided with the first support shaft 31.
And is integrally connected to the outer periphery of a sliding block 39 slidably provided in the up and down direction. The sliding block 3
An upper part of the lower part 9 is provided with an annular depressing member 40 which is screwed onto the outer wall of the first support shaft 31 to depress the sliding block 39. By rotating the pressing member 40, the second insert holder 3
8 is lowered, and the second insert holder 38 pushes down the lamination ring 5 so that the lamination ring 5 can be inserted into the recess 8 of the element 3. At the same time, the sliding block 3
9, the first support shaft 31 is raised to raise the first insert holder 29, and the first insert holder 29 pushes up the laminated ring 4 to insert the laminated ring 4 into the concave portion 7 of the element 3. can do. In the present embodiment, the insert holders 29 and 38 may be moved by using means (for example, a cylinder or a motor) instead of the pressing member 40.

A load detecting means 41 such as a load cell is provided between the sliding block 39 and the pressing member 40.
Is provided. The load detecting means 41 monitors the load when the pressing member 40 presses down the slide block 39, and detects the load when the laminated ring 5 is inserted into the concave portion 8 and the load when the laminated ring 4 is inserted into the concave portion 7. Is detected together with the load at the time of execution.

Next, a method of assembling the continuously variable transmission belt 2 using the apparatus of the present embodiment will be described with reference to FIGS. First, as shown in FIG. 3A, one of the laminated rings 4 is mounted on the outer periphery of the first collet 26 and placed on the tip of the first insert holder 29. This operation is performed by the second insert holder 3 of the device 1 as shown in the left half of FIG.
8, the second collet inner 36, the second body holder 25,
And the second head holder 21 is removed.

Then, as shown in FIG. 3B, the plurality of elements 3 are annularly mounted in a posture where the body 6 is mounted on the first body holder 24 and the head 9 is mounted on the first head holder 19. And layer them. At this time, since the elements 3 do not need to be in close contact with each other, a predetermined quantity can be easily placed even if the head 9 has the dimples 15 formed thereon. Subsequently, as shown in FIG.
The second body holder 25 is mounted thereon, and the second head holder 21 is mounted on the head 9 of the element 3.

Next, as shown in FIG.
The head holder 21 is moved closer to the first head holder 19 by tightening a bolt 22 (see FIG. 1). As a result, the distance between the first inclined surface 20 of the first head holder 19 and the second inclined surface 23 of the second head holder 21 is reduced, and each inclination of the head 9 of the element 3 abutting on both inclined surfaces 20 and 23 is reduced. The edges 12, 13 slide along both inclined surfaces 20, 23. Accordingly, the annularly stacked elements 3 move in the direction from the head 9 to the body 6,
The elements 3 are in close contact with each other. On the other hand, the movement of the first body holder 24 and the second body holder 25 in the inner circumferential direction is regulated by the regulating surface 41 formed on the second support shaft 33 above the first collet inner 34. As a result, the first body holder 24 and the second body holder 25 are separated from each other in the vertical direction by the sliding contact of the inclined edges 10 and 11 of the body 6, and the body 6 is maintained in a supported state. Then, the second head holder 2 is tightened by the bolt 22.
The approach of the first head holder 19 to the first head holder 19 is stopped when the respective elements 3 come into close contact with each other, and the respective elements 3 are clamped.

Subsequently, as shown in FIG. 4A, a second collet 35 is placed on the second body holder 25, and another laminated ring 5 is inserted around the outer periphery of the second collet 35. Then, as shown in FIG. 4B, the second collet inner 36 is externally inserted into the second support shaft 33 and is brought into contact with the inner periphery of the second collet 35.

Next, as shown in FIG. 4C, the diameter of the first collet 26 is increased by the first collet inner 34, and the second collet 35 is increased by the second collet inner 36.
To increase the diameter. At this time, referring to FIG. 1, the pressing member 37 is rotated by a predetermined amount so that the second collet inner 36 is rotated.
Is pushed down, the second support shaft 33 relatively rises and the first collet inner 34 rises, so that the second collet 35 and the first collet 26 are simultaneously expanded by a predetermined expansion amount. be able to. Thereby, both collets 2
Each of the laminated rings 4, 5 mounted on the 6, 35 is expanded to a diameter corresponding to the continuous two concave portions 7, 8 of the clamped element 3. Subsequently, the second insert holder 3
8 is set on the outer periphery of the second collet 35. That is, FIG.
Referring to FIG. 3, the slide block 39 is externally inserted into the first support shaft 31, and the pressing member 40 is provided above the slide block 39.
Attach.

Then, as shown in FIG. 4D, the laminated ring 4 expanded in diameter by the first collet 26 is pushed up by the first insert holder 29 and expanded in diameter by the second collet 35. The laminated ring 5 is pushed down by the second insert holder 38. At this time, as shown in the right half of FIG. 2, if the slide block 39 is pushed down by rotating the push-down member 40 by a predetermined amount, the first support shaft 31 relatively rises, so that the second Insert holder 3
8 and the first insert holder 29 can be simultaneously moved in a direction approaching each other by a predetermined diameter expansion amount. Thereby, one of the laminated rings 4 is inserted into the concave portion 7 of the element by pushing up the first insert holder 29,
By pressing down the second insert holder 38, the other laminated ring 5 is inserted into the concave portion 8 of the element.

At this time, if the lamination rings 4 and 5 cause galling to the concave portion 7 or the concave portion 8 or if the diameter of the laminated rings 4 and 5 and the concave portion 7 or the concave portion 8 are inconsistent, As an abnormal load, the load detecting means 41 (FIG. 1)
And FIG. 2), the occurrence of defective products can be prevented.

The belt 2 for the continuously variable transmission assembled by the above-described steps is the second insert holder 3
8, the second collet inner 36, the second body holder 25,
By removing the second head holder 21 and the second head holder 21, the device 1 is removed.

[Brief description of the drawings]

FIG. 1 is an explanatory longitudinal sectional view showing an apparatus configuration according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing the operation of the apparatus shown in FIG.

FIG. 3 is an explanatory view showing a belt assembling process by the present embodiment.

FIG. 4 is an explanatory view showing a belt assembling step following FIG. 3;

FIG. 5 is an explanatory view showing a part of a continuously variable transmission belt assembled according to the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Assembling apparatus, 2 ... Continuously variable transmission belt, 3 ... Element, 4,5 ... Laminated ring, 6 ... Body, 7,8 ... Concave part,
9 ... head, 10, 11 ... inclined edge of body, 12, 1
3: inclined edge of head, 14: plate-shaped ring, 19: first
Head holder, 20: first inclined surface, 21: second head holder, 23: second inclined surface, 24: first body holder, 2
5: second body holder, 26: first collet, 27: first inclined surface, 28: second inclined surface, 29: first insert holder (first ring pressing means), 34: first collet inner (first expansion) Diameter means), 35 ... second collet, 36 ... second
Collet inner (second diameter expanding means), 38 ... second insert holder (second ring pressing means), 41 ... load detecting means.

Claims (5)

[Claims] 1. A plate-like element having a body and a head connected to the body via a pair of recesses is laminated in an annular shape, and a plate-like ring having a predetermined width is laminated in both recesses of the element. In the method for assembling a continuously variable transmission belt formed by inserting a pair of laminated rings, a plurality of elements are annularly laminated with the body side positioned on the inner peripheral side, and each element is laminated. A step of pressing from the head side and moving toward the body side to bring the respective elements into close contact with each other and clamp them integrally, and a step of laminating each of the laminated rings opposed to each of the concave portions of the clamped elements over the entire width. Expanding the laminated rings to diameters corresponding to the two concave portions, and pressing the enlarged laminated rings toward both concave portions of the element to insert the laminated rings into the concave portions. A method of assembling a continuously variable transmission belt that. 2. The method according to claim 1, wherein in the step of inserting each of the laminated rings into both recesses of the element, the laminated ring is pressed toward the recess while detecting a load applied to the laminated ring. For assembling a belt for a continuously variable transmission. 3. A plate-like element having a body and a head connected to said body via a pair of recesses is laminated in an annular shape, and a plate-like ring having a predetermined width is laminated in both recesses of said element. A belt assembly for a continuously variable transmission formed by inserting a pair of laminated rings formed as described above, wherein the body side is located on the inner peripheral side, and both concave portions are opened in the vertical direction. Element holding means for movably holding the elements stacked on the head from the head side to the body side, and pressing the annularly stacked elements from the head side to move toward the body side provided on the element holding means. An element pressing means for bringing each element into close contact with each other and clamping them integrally; and an element pressing means provided at a position below the element holding means. A first collet that can be freely attached and expanded in diameter, and a lamination ring mounted on the first collet by expanding the diameter of the first collet so that the lamination ring has a diameter corresponding to the concave portion of the annularly laminated element. A first expanding means extending over the entire width of the element, a second collet provided at a position above the element holding means, and having the other laminating ring mounted on the outer periphery and capable of expanding the diameter, and expanding the second collet. A second diameter expanding means for expanding the lamination ring mounted on the second collet over the entire width of the lamination ring to a diameter corresponding to a concave portion of the annularly laminated element; A first ring pressing means for abutting against a lower edge of the lamination ring mounted on the second ring and pressing the lamination ring toward the recess to insert the lamination ring into the recess; On the upper edge A second ring pressing means for contacting and pressing the laminated ring toward the concave portion to insert the laminated ring into the concave portion, the belt assembling device for a continuously variable transmission. 4. The element has a pair of inclined edges which are inclined in a direction converging toward the center of the head, and a pair of V-faces formed on side edges of the body and in contact with a pulley of the continuously variable transmission. The element pressing means slidably contacts the inclined edge corresponding to the lower inclined edge of the head when the element is held by the element holding means. A first head holder having a first inclined surface that is in contact with the first head holder, and a first head holder that is provided to face the first head holder and slidably abuts on the inclined edge corresponding to the upper inclined edge of the head. 2
A second head holder that has an inclined surface and moves in a direction approaching the first head holder to reduce the distance between the first inclined surface and the second inclined surface and press the head of the element in the body direction; A first body holder that includes a first inclined surface slidably in contact with the inclined edge corresponding to the inclined edge on the lower side of the body and that is movable vertically. A second inclined surface provided opposite to the first body holder and slidably in contact with the inclined edge corresponding to the inclined edge on the upper side of the body; The belt assembling apparatus according to claim 2, further comprising a two-body holder. 5. A load detecting means for detecting a load applied to the laminated ring when the laminated ring is pressed by the first ring pressing means and the second ring pressing means. Belt assembly device for continuously variable transmission.