JP6949701B2 - Terminal attachment for toothed belt and terminal attachment method for toothed belt - Google Patents

Description

The present invention relates to a terminal attachment for attaching an endd toothed belt terminal having teeth on at least one surface, and a method for attaching the end of the toothed belt.

Conventionally, when an endless toothed belt that is not endless is used for reciprocating drive or the like, it is necessary to fix both ends to a member to be fixed with a constant tension (for example, Patent Document 1). Therefore, both ends of the toothed belt are fixed to the fixed member by the mounting device. The terminal mounting device of Patent Document 1 mounts an upper die and a lower die having substantially the same inner surface shape to be fitted with a plurality of tooth portions of a toothed belt, and sandwiches the belt end portion between the upper die and the lower die. At the same time, convex portions are integrally formed at both ends of the upper mold and the lower mold, and a pair of frame-shaped locking tools are fitted and crimped so as to face each other on both sides over the outer circumferences of the upper and lower convex portions. A belt is attached.

Further, as in Patent Document 2, an upper plate having a concavo-convex inner surface shape having substantially the same shape as a plurality of teeth of the belt and having a width substantially the same as that of the belt, and a belt at the end of the end-ended belt. It is also known that a lower plate with multiple folds is attached to both sides of a wide plate part, the end of the belt is sandwiched between the upper and lower plates, and the belt is attached by bending the tip of the fold of the lower plate inward. Has been done.

On the other hand, as in Patent Document 3, the rotary lever is engaged with the tool body in a state where the tooth portion of the timing belt is engaged with the retaining groove of the rotary lever rotatably provided in the tool body to be pulled out. Timing belt connecting tools for stopping are known.

Jikkenhei 5-43308 (particularly FIG. 5) Jikkenhei No. 1-83948 Japanese Unexamined Patent Publication No. 2001-173727 (particularly FIG. 1)

However, conventional terminal attachments for toothed belts using caulking, such as Patent Documents 1 and 2, have a problem that they cannot work without a dedicated press device for caulking.

Further, in Patent Document 3, the shape of the tool body is complicated, and the mooring portion of the rotating lever is simply locked to the locking portion for the rotating lever of the tool body, and the locking portion is easily locked. Since it can be released, if you try to pull out the belt with a strong force, it may come off.

The present invention has been made in view of this point, and an object of the present invention is to make it possible to easily and surely fix the end portion of a toothed belt without using a dedicated press device. ..

In order to achieve the above object, in the present invention, the end portion of the toothed belt is attached to the second member together with the first member that meshes with the tooth portion by a retaining member.

Specifically, in the first invention, a terminal attachment of an end-toothed toothed belt having a tooth portion on at least one side thereof is targeted.
The terminal attachment of the above-mentioned toothed belt is
A first member having a dummy tooth portion that meshes with the tooth portion of the toothed belt and a first through hole extending in the width direction of the toothed belt.
A bottom plate on which the first member meshing with the end of the toothed belt is placed together with the end of the toothed belt, and a retaining member that is erected on both sides of the bottom plate and inserted into the first through hole. With a second member having a pair of side plates formed with a second through hole through which the
The first through hole or the second through hole is an elongated hole that inclines toward the bottom plate in the direction in which the toothed belt is pulled out in a state where the toothed belt is placed.

According to the above configuration, the dummy tooth portion of the first member is surrounded by the bottom plate and the pair of side plates of the second member in a state where the dummy tooth portion of the first member is meshed with the tooth portion of the end portion of the toothed belt, and the first through hole and the second through hole are formed. After inserting the retaining member into the hole, the toothed belt is pulled to move the retaining member inside the elongated hole, so that the first member generates a force to press the end of the toothed belt. Therefore, even if a force is applied in the direction of pulling out the toothed belt, the toothed belt does not come out. In this way, the end portion of the toothed belt is securely fitted into the second member simply by pulling in the toothed belt without using a special tool. Further, since the structure converts the tensile force into a surface pressure by inclining the elongated hole, the end portion of the toothed belt can be fixed to the second member with the same finish regardless of who works, and pressure input management is not required. In addition, since the internal surface pressure automatically rises due to the pulling force generated in the toothed belt, the toothed belt is also less likely to hurt.

In the second invention, in the first invention,
A plurality of the elongated holes are formed, and the inclination angles of the adjacent elongated holes are the same.

According to the above configuration, when the toothed belt is pulled in the pulling direction, a force for pressing the toothed belt toward the bottom plate side is similarly generated in both of the two retaining members.

In the third invention, in the first invention,
A plurality of the elongated holes are formed, and the inclination angle of the pull-out side in the adjacent elongated holes is smaller than the inclination angle of the insertion side.

According to the above configuration, with the retaining member inserted into the first and second through holes having the smaller inclination angle, and with the first member tilted, between the first member and the bottom plate of the second member. It is also possible to insert the end portion of the toothed belt and rotate the first member so as to align the other first and second through holes so that the retaining member is inserted. Further, it is possible to press the toothed belt with a larger force in the elongated hole having a steep slope.

In the fourth invention, in any one of the first to third inventions,
It has a pair of the first members and a pair of the second members.
The bottom plates of the pair of second members are connected by a connecting portion so as to face the end portions of the toothed belt on the opposite side in the pulling direction.

According to the above configuration, by fitting and fixing each end of the toothed belt to separate first member and second member to which the bottom plate is connected, a loop-shaped toothed belt having both ends connected can be obtained. can get.

In the fifth invention, in any one of the first to fourth inventions,
In the second member, the bottom plate and the pair of side plates are formed of one steel plate.

According to the above configuration, the second member can be easily obtained by bending and forming one steel plate.

In the sixth invention, in any one of the first to fifth inventions,
The retaining member includes a rivet and a push nut into which the rivet is fitted.

According to the above configuration, the first member can be easily and surely fixed to the second member.

A seventh aspect of the present invention relates to a method for attaching a toothed belt to a terminal, which attaches an end portion of an endless toothed belt having a toothed portion on at least one surface to a second member.
The above terminal mounting method is
The first member having a dummy tooth portion that meshes with the tooth portion of the toothed belt and a first through hole extending in the width direction of the toothed belt, and the first member that meshes with the end portion of the toothed belt are the same. A pair of side plates having a bottom plate placed together with the end of the toothed belt and a second through hole which is erected on both sides of the bottom plate and has a second through hole through which a retaining member inserted into the first through hole is inserted. The preparatory process for preparing the second member to have, and
A belt mounting step of mounting the end of the toothed belt on the bottom plate of the second member, and
The first member is inserted between the pair of side plates of the second member, and the retaining member is inserted into the first through hole and the second through hole in a state where the first through hole and the second through hole are aligned. The retaining member insertion process and
The meshing step of engaging the dummy tooth portion of the first member with the tooth portion of the end portion of the toothed belt, and the meshing step.
The first member is pressed toward the bottom plate side while pulling the toothed belt in which the first member is engaged and moving the retaining member inside the first through hole or the second through hole made of elongated holes. The configuration includes a fitting step of fitting.

According to the above configuration, the dummy tooth portion of the first member is surrounded by the bottom plate and the pair of side plates of the second member in a state where the dummy tooth portion of the first member is meshed with the tooth portion of the end portion of the toothed belt, and the first through hole and the second through hole are formed. After inserting the retaining member into the hole, the toothed belt is pulled to move the retaining member inside the elongated hole, so that the first member exerts a force to press the end of the toothed belt toward the bottom plate. appear. Therefore, even if a force is applied in the direction of pulling out the toothed belt, the toothed belt does not come out. In this way, the end portion of the toothed belt is securely fitted into the second member simply by pulling in the toothed belt without using a special tool. Since the structure converts the tensile force into a surface pressure by inclining the elongated hole, the end portion of the toothed belt can be fixed to the second member with the same finish regardless of who works, and pressure input management is not required. In addition, since the internal surface pressure automatically rises due to the pulling force generated in the toothed belt, the toothed belt is also less likely to hurt.

In the eighth invention, in the seventh invention,
After the first member is temporarily fixed to the second member in the retaining member insertion step, the tooth is attached between the bottom plate and the first member in the belt mounting step in a state where the first member is tilted. The structure is such that the belt is inserted.

According to the above configuration, the insertion work of the end portion of the toothed belt and the positioning of the retaining member can be facilitated.

A ninth aspect of the present invention relates to a method for attaching a terminal of a toothed belt in which the ends of a pair of endless toothed belts having teeth on at least one surface are attached to and connected to a second member.
The above terminal mounting method is
A pair of first members having a dummy tooth portion that meshes with the tooth portion of the toothed belt and a first through hole extending in the width direction of the toothed belt, and a pair of first members that mesh with the end portion of the toothed belt. A bottom plate on which the member is placed together with the end of the toothed belt and a second through hole through which the retaining member to be inserted through the first through hole is inserted are formed, respectively. A preparatory step for preparing a second member having at least a pair of side plates, and
The first belt mounting step of mounting the end of one of the toothed belts on the bottom plate of the second member, and
One of the first members is inserted between the pair of side plates of the second member, and the retaining member is inserted into the first through hole and the second through hole in a state where the first through hole and the second through hole are aligned. The first retaining member insertion process to be inserted into
The first meshing step of meshing the dummy tooth portion of the first member with the tooth portion of the end portion of the toothed belt, and the first meshing step.
The bottom plate of the first member is moved while the one toothed belt with which the first member is engaged is pulled and the retaining member is moved inside the first through hole or the second through hole made of an elongated hole. The first fitting process of pressing to the side and fitting,
A second belt mounting step of mounting the other end of the toothed belt on the bottom plate of the second member, and
The other first member is inserted between the pair of side plates of the second member, and the retaining member is inserted into the first through hole and the second through hole in a state where the first through hole and the second through hole are aligned. The second retaining member insertion process to be inserted into
A second meshing step of engaging the dummy tooth portion of the other first member with the tooth portion of the end portion of the other toothed belt, and
The first member is moved to the bottom plate while pulling the other toothed belt with which the other first member is engaged and moving the retaining member inside the first through hole or the second through hole made of an elongated hole. The configuration includes a second fitting step of pressing and fitting to the side.

According to the above configuration, at each end of the toothed belt, the bottom plate of the second member and the pair of side plates are formed in a state where the dummy tooth portion of the first member is meshed with the tooth portion of the end portion of the toothed belt. After inserting the retaining member into the first through hole and the second through hole, the toothed belt is pulled by the toothed belt to move the retaining member inside the inclined elongated hole, so that the toothed belt is formed by the first member. A force is generated to press the end to the bottom plate side. Therefore, even if a force is applied in the direction of pulling out the toothed belts connected so as to be continuous in an annular shape from the second member, each end of the toothed belt does not come out. In this way, each end of the toothed belt is securely fitted into the second member simply by pulling in the ends of the pair of toothed belts without using a special tool. Since the structure converts the tensile force into a surface pressure by inclining the elongated hole, the end portion of the toothed belt can be fixed to the second member with the same finish regardless of who works, and pressure input management is not required. In addition, since the internal surface pressure automatically rises due to the pulling force generated in the toothed belt, the toothed belt is also less likely to hurt.

As described above, according to the present invention, the dummy tooth portion of the first member is attached to the second member with a retaining member in a state where the dummy tooth portion of the first member is meshed with the tooth portion of the toothed belt, and the retaining member is attached to the toothed portion. By pulling the belt and moving the inside of the elongated hole to press the first member against the bottom plate side, the end portion of the toothed belt can be easily and surely fixed without using a dedicated press device. Further, since the tension of the belt body is dispersed and transmitted to the terminal attachment by the portion meshed with the first member having the dummy tooth portion, the toothed belt is damaged or cut due to the damage or cutting of the terminal portion of the toothed belt. It will not become unusable early.

It is a perspective view which shows the state which attached the end part of the toothed belt to the terminal attachment of the toothed belt which concerns on Embodiment 1 of this invention. It is a top view which shows the state which attached the end part of the toothed belt to the terminal attachment of the toothed belt which concerns on Embodiment 1 of this invention. It is a front view which shows the state which attached the end part of the toothed belt to the terminal attachment of the toothed belt which concerns on Embodiment 1 of this invention. FIG. 2 is a sectional view taken along line IV-IV of FIG. FIG. 3 is a sectional view taken along line VV of FIG. FIG. 5 is an exploded perspective view showing a state in which an end portion of the toothed belt is attached to the terminal attachment of the toothed belt according to the first embodiment of the present invention. It is a front view which shows the preparation process and the mounting process in the terminal attachment method of the toothed belt which concerns on Embodiment 1 of this invention. It is a front view which shows the retaining member insertion process and the meshing process in the terminal attachment method of the toothed belt which concerns on Embodiment 1 of this invention. It is a front view which shows the fitting process in the terminal attachment method of the toothed belt which concerns on Embodiment 1 of this invention. FIG. 3 is a three-phase equality diagram according to a first modification of the first embodiment of the present invention. FIG. 3 is a three-phase equality diagram according to a second modification of the first embodiment of the present invention. It is a front view which shows the preparation process and the mounting process in the terminal attachment method of the toothed belt which concerns on the modification 3 of Embodiment 1 of this invention. It is a front view which shows the retaining member insertion process and the meshing process in the terminal attachment method of the toothed belt which concerns on the modification 3 of Embodiment 1 of this invention. It is a front view which shows the fitting process in the terminal attachment method of the toothed belt which concerns on the modification 3 of Embodiment 1 of this invention. FIG. 6 is a 6-phase equality diagram according to a second embodiment of the present invention. It is a front view which shows the preparation process and the mounting process in the terminal attachment method of the toothed belt which concerns on Embodiment 2 of this invention. It is a front view which shows the retaining member insertion process and the meshing process in the terminal attachment method of the toothed belt which concerns on Embodiment 2 of this invention. It is a front view which shows the fitting process in the terminal attachment method of the toothed belt which concerns on Embodiment 2 of this invention. FIG. 6 is a 6-phase equality diagram according to a third embodiment of the present invention. It is a front view which shows the preparation process and the mounting process in the terminal attachment method of the toothed belt which concerns on Embodiment 3 of this invention. It is a front view which shows the retaining member insertion process and the meshing process in the terminal attachment method of the toothed belt which concerns on Embodiment 3 of this invention. It is a front view which shows the fitting process in the terminal attachment method of the toothed belt which concerns on Embodiment 3 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
-Structure of terminal attachment for toothed belt-
1 to 6 show the terminal attachment 1 of the toothed belt according to the first embodiment of the present invention, and in the present embodiment, the terminal attachment 1 has one surface (here, for convenience of explanation, the upper surface). ), The toothed belt 50 with an end having a plurality of tooth portions 51 arranged at the same pitch P is attached.

The terminal attachment 1 includes a first member 2 having a dummy tooth portion 2a that meshes with the tooth portion 51 of the toothed belt 50. As shown in FIG. 7A, for example, seven dummy tooth portions 2a are arranged at the same pitch P, but the number thereof is not particularly limited. The first member 2 has, for example, two first through holes 2b extending in the width direction of the toothed belt 50. The first through hole 2b is an elongated hole that inclines downward (toward the bottom plate 3a) in the pulling direction A in which the toothed belt 50 is pulled out in a state where the toothed belt 50 is placed. The pair of first through holes 2b made of the elongated holes are inclined at the same inclination angle θ. The first member 2 is formed of, for example, a resin molded product such as POM (polyacetal) resin having excellent mechanical strength, wear resistance, and slidability. If it is a resin molded product, even a complicated shape can be easily molded as long as a mold is prepared. The first member 2 may be made of another material such as metal or rubber.

The terminal attachment 1 further includes a second member 3 made of a steel plate or the like. The second member 3 includes, for example, a rectangular plate-shaped bottom plate 3a on which the first member 2 meshing with the end portion of the toothed belt 50 is placed together with the end portion of the toothed belt 50. On both sides of the bottom plate 3a, a pair of side plates 3b having a second through hole 3c through which a rivet 4 as a pull-out member to be inserted into the first through hole 2b is inserted are erected. It is desirable that the side plate 3b has rounded corners in consideration of ease of handling and the like. A fixing piece 3d is connected to the bottom plate 3a on the opposite side of the toothed belt 50 in the pulling direction A. For example, the fixing piece 3d can be fixed by fastening a bolt inserted into the bolt insertion hole 3e to the fixed portion. As shown in FIG. 3 and the like, the fixed piece 3d may be slightly bent to be higher than the bottom plate 3a. The second member 3 is formed of, for example, one steel plate. In this case, the second member 3 can be easily obtained by bending and forming one steel plate by a press machine or the like.

The retaining member includes, for example, a rivet 4 and a push nut 5 into which the rivet 4 is fitted, but may have other configurations such as a bolt and a nut, a pin and a split pin.

-How to attach the terminal of the toothed belt-
Next, a method of attaching the terminal of the toothed belt 50 according to the present embodiment will be described.

First, in the preparation step, the toothed belt 50, the first member 2, and the second member 3 are prepared.

Next, in the belt mounting step, as shown in FIGS. 7A and 7B, the end portion of the toothed belt 50 is mounted on the bottom plate 3a of the second member 3.

Next, in the retaining member insertion step, the first member 2 is inserted between the pair of side plates 3b of the second member 3, and the rivet 4 is first inserted in a state where the first through hole 2b and the second through hole 3c are aligned. It is inserted through the through hole 2b and the second through hole 3c. In the present embodiment, since the retaining member includes the rivet 4 and the push nut 5 into which the rivet 4 is fitted, the first member 2 can be easily and surely fixed to the second member 3.

Next, in the meshing step, the dummy tooth portion 2a of the first member 2 is meshed with the tooth portion 51 at the end of the toothed belt 50. This meshing step may be performed at the same time as the retaining member insertion step.

Finally, in the fitting step, the toothed belt 50 in which the first member 2 is meshed is pulled, and the rivet 4 is pressed into the bottom plate 3a side while moving the inside of the first through hole 2b made of a long hole. Attach and fit. That is, when the toothed belt 50 is pulled in the pulling direction A, as shown in FIGS. 7B and 7C, the inside of the first through hole 2b inclined at the same angle moves upward. At this time, since the first member 2 is pressed downward as it moves upward, the force F that similarly presses the toothed belt 50 downward (toward the bottom plate 3a) in either of the two rivets 4. Occurs. Therefore, the more the toothed belt 50 is pulled, the more the first member 2 is pressed downward (toward the bottom plate 3a), so that the toothed belt 50 does not come off.

In this way, the end portion of the toothed belt 50 is securely fitted into the second member 3 simply by pulling in the toothed belt 50 without using a special tool. Therefore, even if a force is applied in the pulling direction A for pulling out the toothed belt 50, the toothed belt 50 does not come out. Further, since the structure converts the tensile force into the surface pressure by the inclination of the elongated hole, the end portion of the toothed belt 50 can be fixed to the second member 3 with the same finish regardless of who works, and pressure input management is not required. be. Further, since the internal surface pressure is automatically increased by the pulling force generated in the toothed belt 50, the toothed belt 50 is also less likely to hurt.

Therefore, according to the terminal attachment 1 of the toothed belt 50 according to the present embodiment, the end portion of the toothed belt 50 can be easily and surely fixed without using a dedicated press device. Further, since the tension of the belt body is dispersed and transmitted to the terminal attachment 1 by the portion meshed with the first member 2 having the dummy tooth portion 2a, the terminal portion of the toothed belt 50 may be damaged or cut. The toothed belt 50 does not become unusable early.

-Modification example 1-
FIG. 8 shows a terminal attachment 1 ′ according to a modified example of the first embodiment of the present invention, and the shape of the second member 3 ′ is mainly different from the shape of the second member 3 of the first embodiment. In each of the following modifications and embodiments, the same parts as those in FIGS. 1 to 7C are designated by the same reference numerals, and detailed description thereof will be omitted.

In this modification, a pair of first members 2 and a pair of second members 3'are provided, and the opposite ends of the toothed belt 50 in the pair of second members 3'in the pulling directions A and A'are The bottom plates 3a are connected by a connecting portion 3d'so as to face each other.

In this way, by fitting and fixing each end of the toothed belt 50 to the separate first member 2 and second member 3 to which the bottom plate 3a is connected, both ends are connected to form a loop-shaped tooth. Belt 50 is obtained.

In the present embodiment, first, in the preparation step, a pair of connected second members 3', a pair of first members 2, and a toothed belt 50 are prepared.

Next, in the first retaining member insertion step, one first member 2 was inserted between the pair of side plates 3b'of the second member 3', and the first through hole 2b and the second through hole 3c were aligned. In this state, the rivet 4 is inserted into the first through hole 2b and the second through hole 3c.

Next, in the first meshing step, the dummy tooth portion 2a of the one first member 2 is meshed with the tooth portion 51 at the end of the one toothed belt 50.

Next, in the first fitting step, the one toothed belt 50 with which the one first member is engaged is pulled in the pulling direction A, and the rivet 4 is moved upward while moving the inside of the first through hole 2b made of the elongated hole upward. The first member 2 is pressed against the bottom plate 3a and fitted.

Next, in the second belt mounting step, the end portion of the other toothed belt 50 is mounted on the bottom plate 3a of the second member 3.

Next, in the second retaining member insertion step, the other first member 2 is inserted between the pair of side plates 3b of the second member 3, and the first through hole 2b and the second through hole 3c are aligned with each other. The rivet 4 is inserted into the first through hole 2b and the second through hole 3c.

Further, in the second meshing step, the dummy tooth portion 2a of the other first member 2 is meshed with the tooth portion 51 at the end of the other toothed belt 50.

Next, in the second fitting step, the other toothed belt 50 to which the other first member 2 is engaged is pulled in the pulling direction A', and the rivet 4 is moved upward inside the first through hole 2b made of a long hole. The first member 2 is pressed against the bottom plate 3a side and fitted.

In this way, at each end of the toothed belt 50, a force F is generated by the first member 2 to press the end of the toothed belt 50 toward the bottom plate 3a. Therefore, even if a force is applied to the pulling directions A and A'that pull out the toothed belt 50 connected so as to be continuous in an annular shape from the second member 3', each end portion of the toothed belt 50 does not come out.

The pair of side plates are divided into a connecting portion on one side and the other side, respectively, but they may be integrally connected.

-Modification example 2-
FIG. 9 shows the terminal attachment 1 ″ according to the second modification of the first embodiment of the present invention, and the shape of the connecting portion 3d ″ is different from that of the first modification.

That is, the connecting portion 3d'' of this modification is provided with a hinge portion 3e'' in the intermediate portion, and a pair of second members 3'' rotate relative to each other around the hinge portion 3e''. It is movable.

-Modification example 3-
10A to 10C show the terminal attachment 1 ″ according to the third modification of the first embodiment of the present invention, and the shape and the like of the first through hole 2b ″ ″ are different from those of the above embodiment.

That is, unlike the first embodiment, the first through hole 2b ″ ″ of this modified example is not a long hole but a circular hole. On the other hand, the second through hole 3c ″'' formed in the side plate 3b ″ of the second member 3'''' is in the state where the toothed belt 50 is placed, and the toothed belt 50 is pulled out in the pulling direction A. It consists of elongated holes that incline downward (toward the bottom plate 3a). In this modification as well, the inclination angles of these adjacent elongated holes are equal.

In this modification, basically, the toothed belt 50 is attached to the second member 3'''in the same manner as in the first embodiment, but from the state shown in FIG. 10B, the tooth portion 51 is attached in the meshing step. After the dummy tooth portion 2a and the dummy tooth portion 2a are engaged with each other, the rivet 4 is positioned above the second through hole 3c'''' formed of the elongated hole.

Then, when the toothed belt 50 is pulled in the pulling direction A in which the toothed belt 50 is pulled out in the fitted state, both of the two rivets 4 move below the second through hole 3c ″, as shown in FIG. 10C. Along with this movement, a force F that the first member 2 "" pushes the toothed belt 50 downward (toward the bottom plate 3a) is gradually generated. Therefore, the toothed belt 50 does not come out of the second member 3 ″.

(Embodiment 2)
FIG. 11 shows the terminal attachment 101 of the second embodiment of the present invention, which is different from the third modification of the first embodiment in that the inclination angles θ1 and θ2 of the adjacent second through holes 103c1 and 103c2 are different.

That is, in the present embodiment, the inclination angle θ1 of the second through hole 103c1 on the pull-out side in the second through holes 103c1 and 103c2 composed of adjacent elongated holes is smaller than the inclination angle θ2 of the second through hole 103c2 on the insertion side. (Θ1 <θ2).

Next, the operation of the terminal attachment 101 according to the present embodiment will be described with reference to FIGS. 12A to 12C.

First, in the preparation step, the toothed belt 50 and the terminal attachment 101 are prepared.

Next, in the retaining member insertion step, the first member 102 is inserted between the pair of side plates 103b of the second member 103, and the first through hole 102b and the second through hole 103c1 on the pulling direction A side are aligned. Inserting the rivet 4 into the first through hole 102b and the second through hole 103c1 By inserting only one of the rivets 4 in this way, the first member 102 is temporarily fixed to the second member 103.

Next, in the belt mounting step, as shown in FIG. 12A, the end portion of the toothed belt 50 is inserted between the bottom plate 3a of the first member 102 and the second member 103 in the insertion direction B opposite to the pulling direction A. ..

Next, in the meshing step, as shown in FIG. 12B, the first member 102 is rotated around the rivet 4, and the dummy tooth portion 2a of the first member 102 is engaged with the tooth portion 51 at the end of the toothed belt 50. match.

Finally, in the fitting step, as shown in FIG. 12C, the toothed belt 50 in which the first member 102 is engaged is pulled to pull the rivet 4 downward inside the second through holes 103c1 and 103c2 made of elongated holes (bottom plate). While moving (to the 3a side), the first member 102 is pressed against the bottom plate 3a side and fitted.

In this way, with the rivet 4 inserted into the second through hole 103c1 and the first through hole 2 having the smaller inclination angle θ1, the first member 102 and the second member 103 are tilted. The end of the toothed belt 50 is inserted between the bottom plate 3a and the rivet 4 is inserted by rotating the first member 102 so as to align the second through hole 103c2 having the larger inclination angle θ2. You can also do it.

In the present embodiment, the toothed belt 50 can be pressed by the second through hole 103c2 having a steeper inclination angle θ1 with a larger force F. Therefore, also in the terminal attachment 101 according to the present embodiment, the end portion of the toothed belt 50 can be easily and surely fixed without using a dedicated press device.

(Embodiment 3)
FIG. 13 shows the terminal attachment 201 of the third embodiment of the present invention, which is different from the first embodiment in that only one first through hole 202b and one second through hole 203c are provided.

Next, the operation of the terminal attachment 201 according to the present embodiment will be described with reference to FIGS. 14A to 14C.

As shown in FIG. 14A, the first member 202 is temporarily fixed to the second member 23 in the retaining member insertion step.

Next, in the belt mounting step, the toothed belt 50 is inserted between the bottom plate 3a and the first member 202 in a state where the first member 202 is tilted.

Next, in the meshing step, as shown in FIGS. 14B and 14C, the first member 202 is rotated and moved downward about the rivet 4, and the first member 202 is attached to the tooth portion 51 at the end of the toothed belt 50. The dummy tooth portion 2a of the above is engaged.

Finally, in the fitting step, as shown in FIG. 14C, the toothed belt 50 in which the first member 202 is meshed is pulled, and the rivet 4 is fitted while moving the inside of the second through hole 203c made of the elongated hole upward. Include. Then, the first member 202 is gradually pressed downward, and a pressing force F is generated.

In the present embodiment, the insertion work of the end portion of the toothed belt 50 and the alignment of the rivet 4 become easy.

Therefore, also in the terminal attachment 201 according to the present embodiment, the end portion of the toothed belt 50 can be easily and surely fixed without using a dedicated press device.

(Other embodiments)
The present invention may have the following configurations for each of the above embodiments.

That is, in each of the above embodiments, the toothed belt 50 has the toothed portion 51 only on the upper surface, but may be applied to the toothed belt 50 having the toothed portion 51 on both the upper surface and the lower surface.

Further, the first member and the tooth portion 51 of the toothed belt 50 do not have to be used by meshing with each other near the terminal of the toothed belt 50, and the meshing position can be freely shifted to adjust the length.

In each of the above embodiments, the width of the toothed belt 50 and the width of the first member are equivalent, but for example, if the width of the toothed belt 50 is twice the width of the first member, two pieces are used. The first member may be fitted into the second member while being placed on the toothed belt 50. Then, the toothed belts 50 having different widths can be attached to the common first member.

It should be noted that the above embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its applications and applications.

1,1', 1'', 1''', 101,201 Terminal fixture
2,2''', 102,202 First member
2a Dummy tooth
2b, 2b''', 102b, 202b 1st through hole
3,3', 3'', 3''', 103, 203 Second member
3a bottom plate
3b, 3b''', 103b, 203b side plate
3c, 3c''', 103c1, 103c2, 203c 2nd through hole
3d fixed piece
3d'connecting part
3e bolt insertion hole
3e'''Hinge part
4 rivets (retaining member)
5 Push nut (retaining member)
50 toothed belt
51 Tooth

Claims (9)

An endped toothed belt terminal attachment having teeth on at least one side.
A first member having a dummy tooth portion that meshes with the tooth portion of the toothed belt and a first through hole extending in the width direction of the toothed belt.
A bottom plate on which the first member meshing with the end of the toothed belt is placed together with the end of the toothed belt, and a retaining member that is erected on both sides of the bottom plate and inserted into the first through hole. With a second member having a pair of side plates formed with a second through hole through which the
The first through hole or the second through hole is characterized by including an elongated hole that inclines toward the bottom plate side in a direction in which the toothed belt is pulled out in a state where the toothed belt is placed. Terminal attachment for toothed belts. In the terminal attachment of the toothed belt according to claim 1,
A terminal attachment for a toothed belt, characterized in that a plurality of the elongated holes are formed and the inclination angles of the adjacent elongated holes are the same. In the terminal attachment of the toothed belt according to claim 1,
A terminal attachment for a toothed belt, characterized in that a plurality of the elongated holes are formed, and the tilt angle of the pull-out side in the adjacent elongated holes is smaller than the tilt angle of the insertion side. In the terminal attachment of the toothed belt according to any one of claims 1 to 3.
It has a pair of the first members and a pair of the second members.
A terminal attachment for a toothed belt, characterized in that the bottom plates of the pair of second members are connected by a connecting portion so that the end portions on the opposite side of the toothed belt in the pulling direction face each other. In the terminal attachment of the toothed belt according to any one of claims 1 to 4.
The second member is a terminal attachment for a toothed belt, wherein the bottom plate and the pair of side plates are formed of a single steel plate. In the terminal attachment of the toothed belt according to any one of claims 1 to 5,
The retaining member is a terminal attachment for a toothed belt, which comprises a rivet and a push nut into which the rivet is fitted. In the method of attaching the end of the toothed belt having teeth on at least one side surface to the second member, the terminal attachment method of the toothed belt.
The first member having a dummy tooth portion that meshes with the tooth portion of the toothed belt and a first through hole extending in the width direction of the toothed belt, and the first member that meshes with the end portion of the toothed belt are the same. A pair of side plates having a bottom plate placed together with the end of the toothed belt and a second through hole which is erected on both sides of the bottom plate and has a second through hole through which a retaining member inserted into the first through hole is inserted. The preparatory process for preparing the second member to have, and
A belt mounting step of mounting the end of the toothed belt on the bottom plate of the second member, and
The first member is inserted between the pair of side plates of the second member, and the retaining member is inserted into the first through hole and the second through hole in a state where the first through hole and the second through hole are aligned. The retaining member insertion process and
The meshing step of engaging the dummy tooth portion of the first member with the tooth portion of the end portion of the toothed belt, and the meshing step.
The first member is pressed toward the bottom plate side while pulling the toothed belt in which the first member is engaged and moving the retaining member inside the first through hole or the second through hole made of elongated holes. A terminal mounting method for a toothed belt, which comprises a fitting step of fitting. In the terminal mounting method of the toothed belt according to claim 7,
After the first member is temporarily fixed to the second member in the retaining member insertion step, the tooth is attached between the bottom plate and the first member in the belt mounting step with the first member tilted. A terminal mounting method for a toothed belt, which comprises inserting a belt. It is a terminal attachment method of a toothed belt in which the ends of a pair of endless toothed belts having teeth on at least one side surface are attached to and connected to a second member, respectively.
A pair of first members having a dummy tooth portion that meshes with the tooth portion of the toothed belt and a first through hole extending in the width direction of the toothed belt, and a pair of first members that mesh with the end portion of the toothed belt. A bottom plate on which the member is placed together with the end of the toothed belt and a second through hole through which the retaining member to be inserted through the first through hole is inserted are formed, respectively. A preparatory step for preparing a second member having at least a pair of side plates, and
The first belt mounting step of mounting the end of one of the toothed belts on the bottom plate of the second member, and
One of the first members is inserted between the pair of side plates of the second member, and the retaining member is inserted into the first through hole and the second through hole in a state where the first through hole and the second through hole are aligned. The first retaining member insertion process to be inserted into
The first meshing step of meshing the dummy tooth portion of the first member with the tooth portion of the end portion of the toothed belt, and the first meshing step.
The bottom plate of the first member is moved while the one toothed belt with which the first member is engaged is pulled and the retaining member is moved inside the first through hole or the second through hole made of an elongated hole. The first fitting process of pressing to the side and fitting,
A second belt mounting step of mounting the other end of the toothed belt on the bottom plate of the second member, and
The other first member is inserted between the pair of side plates of the second member, and the retaining member is inserted into the first through hole and the second through hole in a state where the first through hole and the second through hole are aligned. The second retaining member insertion process to be inserted into
A second meshing step of engaging the dummy tooth portion of the other first member with the tooth portion of the end portion of the other toothed belt, and
The first member is moved to the bottom plate while pulling the other toothed belt with which the other first member is engaged and moving the retaining member inside the first through hole or the second through hole made of an elongated hole. A terminal mounting method for a toothed belt, which comprises a second fitting step of pressing and fitting to the side.

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