JP2019113084A - Terminal fixture for toothed belt and method of fixing toothed belt to terminal - Google Patents

Abstract

To simply and reliably enable fixing of an end of a toothed belt without using a dedicated pressing device.SOLUTION: A terminal fixture for a toothed belt includes: a first member 2 having a dummy tooth part 2a to engage with a tooth part 51 of a toothed belt 50 and first through holes 2b extending in the width direction of the toothed belt 50; and a second member 3 having a bottom plate 3a on which the first member 2 engaged with an end of the toothed belt 50 is mounted together with the end of the toothed belt 50, and a pair of side plates 3b erected on opposite sides of the bottom plate 3a with second through holes 3c formed therein, into which rivets 4 inserted through the first through holes 2a are inserted. The first through holes 2b or the second through holes 3c are formed in long holes inclined toward the side of the bottom plate 3a in the direction of extracting the toothed belt 50 while the toothed belt 50 is mounted.SELECTED DRAWING: Figure 6

Description

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

  2. Description of the Related Art Conventionally, an endless toothed belt that is not endless needs to be fixed to fixed members at both ends with a constant tension when it is used for reciprocating drive or the like (e.g., Patent Document 1). For this reason, both ends of the toothed belt are respectively fixed to the fixed member by the mounting device. The terminal attachment device of Patent Document 1 attaches upper and lower molds having substantially the same inner surface shape to be fitted with a plurality of teeth of a toothed belt, and holds the belt end by these upper and lower molds. Then, convex portions are integrally formed respectively at both ends of the upper and lower molds, and a pair of frame-like locking members are engaged by caulking on both sides of the upper and lower convex portions so as to face each other. Attached belts.

  In addition, as in Patent Document 2, an upper plate having an uneven inner surface shape having substantially the same width as that of the belt and fitted with a plurality of tooth portions of the belt at the end portion of the endless belt, and the belt The lower plate attached with a plurality of folds is attached to both sides of the wide plate portion, and the belt end is held between the upper and lower plates, and the belt is attached by bending the lower end of the lower plate inward. It is done.

  On the other hand, as disclosed in Patent Document 3, the turning lever is engaged with the tool body in a state in which the teeth of the timing belt are engaged with the retaining groove of the turning lever provided rotatably in the tool body. Timing belt connection devices that stop are known.

Japanese Utility Model Application Publication No. 5-43308 (especially, FIG. 5) Japanese Utility Model Application Publication No. 1-83948 JP 2001-173727 A (especially FIG. 1)

  However, the conventional terminal attachment for toothed belts using caulking as in Patent Documents 1 and 2 has a problem that it can not work without a dedicated pressing device for caulking.

  Further, in the case of Patent Document 3, the shape of the tool body is complicated, and the mooring portion of the turning lever is only locked to the turning lever locking portion of the tool body, and the locking is easily performed. If you try to pull out the belt with a strong force because it can be released, it may come off.

  The present invention has been made in view of such a point, and an object of the present invention is to enable the end portion of a toothed belt to be fixed easily and reliably without using a dedicated pressing device. .

  In order to achieve the above object, in the present invention, the end of the toothed belt is attached to the second member by the retaining member together with the first member meshing with the teeth.

Specifically, in the first invention, a terminal attachment for an end-to-end toothed belt having a tooth portion on at least one side surface is targeted,
The terminal attachment of the above-mentioned toothed belt is
A dummy tooth portion meshing with the tooth portion of the toothed belt, and a first member having a first through hole extending in the width direction of the toothed belt;
The first member engaged with the end of the toothed belt is a bottom plate placed together with the end of the toothed belt and a retaining member erected on both sides of the bottom plate and inserted into the first through hole And 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 which is inclined toward the bottom plate in a 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 teeth of the first member are surrounded by the bottom plate of the second member and the pair of side plates in a state of being engaged with the teeth of the end of the toothed belt, and the first through hole and the second through hole After the retaining member is inserted into the hole, the toothed belt is pulled to move the retaining member inside the inclined long hole, thereby generating a force for pressing the end of the toothed belt by the first member. Therefore, even if a force is applied in the direction of pulling out the toothed belt, the toothed belt does not come off. In this way, the end of the toothed belt can be reliably fitted into the second member simply by pulling in the toothed belt without using a special tool. Further, since the tensile force is converted into the surface pressure by the inclination of the long hole, the end of the toothed belt can be fixed to the second member with the same finish regardless of who works, and pressure input management is also unnecessary. In addition, since the internal surface pressure is automatically raised by the tensile force generated in the toothed belt, the toothed belt is also less painful.

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

  According to the above configuration, when the toothed belt is pulled in the pulling direction, a force is similarly generated to press the toothed belt toward the bottom plate in any 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 on the drawing side in the adjacent elongated holes is smaller than the inclination angle on the inserting side.

  According to the above configuration, in a state in which the retaining member is inserted into the first and second through holes having a smaller inclination angle, the first member is inclined and between the first member and the bottom plate of the second member The end of the toothed belt may be inserted, and the first member may be rotated to insert the retaining member so as to align the other first and second through holes. In addition, it is possible to press the toothed belt with greater force in the direction of the sloping long holes.

In a fourth invention, in any one of the first to third inventions,
A pair of the first members and a pair of the second members;
A bottom plate is connected by a connection part so that the drawing direction opposite-side end part of the said toothed belt in a pair of said 2nd member may be faced.

  According to the above configuration, the looped toothed belt is connected at both ends by fitting and fixing the respective ends of the toothed belt to the separate first and second members connected to the bottom plate. can get.

In a 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 a single steel plate.

  According to said structure, a 2nd member is easily obtained by bending-forming one steel plate.

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

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

The seventh invention is directed to a method for attaching a toothed belt to a second member, wherein the end of a toothed belt having an end portion having a toothed portion on at least one side is attached to the second member,
The above terminal mounting method is
A first member having a dummy tooth portion meshing 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 meshed with the end portion of the toothed belt A bottom plate placed together with an end of a toothed belt, and a pair of side plates provided on both sides of the bottom plate and having a second through hole formed therein through which a retaining member inserted into the first through hole is inserted. Preparing a second member having the
A belt placing step of placing an end of the toothed belt on the bottom plate of the second member;
The first member is inserted between a 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. Retaining member insertion step
An engaging step of engaging the dummy tooth portion of the first member with the tooth portion of the end portion of the toothed belt;
The first member is pressed to the bottom plate side while moving the inside of the first through hole or the second through hole formed by the elongated member by pulling the toothed belt in which the first member is engaged to draw the toothed belt. And a fitting process.

  According to the above configuration, the dummy teeth of the first member are surrounded by the bottom plate of the second member and the pair of side plates in a state of being engaged with the teeth of the end of the toothed belt, and the first through hole and the second through hole After the retaining member is inserted into the hole, the toothed belt is pulled to move the retaining member in the inside of the elongated hole so that the first member presses the end of the toothed belt to the bottom plate side. Occur. Therefore, even if a force is applied in the direction of pulling out the toothed belt, the toothed belt does not come off. In this way, the end of the toothed belt can be reliably fitted into the second member simply by pulling in the toothed belt without using a special tool. Since the tensile force is converted to the surface pressure by the inclination of the long hole, the end of the toothed belt can be fixed to the second member with the same finish regardless of who works, and pressure input management is also unnecessary. In addition, since the internal surface pressure is automatically raised by the tensile force generated in the toothed belt, the toothed belt is also less painful.

In the eighth invention, in the seventh invention,
After temporarily fixing the first member to the second member in the retaining member inserting step, the teeth are placed between the bottom plate and the first member in the belt placing step in a state where the first member is inclined. The belt is inserted.

  According to the above configuration, the insertion operation of the end of the toothed belt and the alignment of the retaining member become easy.

The ninth invention is directed to a method of attaching a toothed belt to an end of a pair of toothed belts having teeth on at least one surface by attaching and connecting the ends of the pair of toothed belts to the second member,
The above terminal mounting method is
A dummy tooth portion meshing with the tooth portion of the toothed belt and a pair of first members having a first through hole extending in the width direction of the toothed belt, and a pair of first members meshed with an end portion of the toothed belt A bottom plate on which a member is placed together with an end of the toothed belt and a second through hole which is erected on both sides of the bottom plate and into which a retaining member inserted in the first through hole is inserted is formed. Preparing a second member having at least a pair of side plates;
A first belt placing step of placing an end of one of the toothed belts on the bottom plate of the second member;
One of the first members is inserted between a pair of side plates of the second member, and the retaining member is a first through hole and a second through hole in a state in which the first through hole and the second through hole are aligned. A first retaining member inserting step of inserting into
A first meshing step of meshing the dummy tooth portion of one of the first members with the tooth portion of the end portion of one of the toothed belts;
The bottom plate of the first member is moved while moving the inside of the first through hole or the second through hole, which is a long hole, pulling the one toothed belt with which the first member is engaged and pulling the one toothed belt engaged. A first fitting step of pressing and fitting to the side,
A second belt placing step of placing an end of the other of the toothed belts on the bottom plate of the second member;
With the other first member inserted between the pair of side plates of the second member, and the first through hole and the second through hole being aligned, the retaining member is a first through hole and a second through hole. A second retaining member inserting step to be inserted into the
A second meshing step of meshing the dummy tooth portion of the other first member with the tooth portion of the other end of the toothed belt;
The bottom plate of the first member is moved while moving the inside of the first through hole or the second through hole formed by a long hole by pulling up the other toothed belt with which the other first member is engaged. And a second fitting step of pressing and fitting to the side.

  According to the above configuration, at each end of the toothed belt, with the dummy teeth of the first member meshed with the teeth of the end of the toothed belt, the bottom plate and the pair of side plates of the second member After the retaining member is inserted into the first through hole and the second through hole, the toothed belt is pulled to move the retaining member within the inclined long hole, whereby the toothed belt A force is generated to press the end to the bottom plate side. For this reason, each end of the toothed belt does not come out even if a force is applied in a direction in which the toothed belt connected in an annularly continuous manner is pulled out from the second member. In this manner, the respective ends of the toothed belt can be reliably fitted into the second member simply by pulling in the ends of the pair of toothed belts without using a special tool. Since the tensile force is converted to the surface pressure by the inclination of the long hole, the end of the toothed belt can be fixed to the second member with the same finish regardless of who works, and pressure input management is also unnecessary. In addition, since the internal surface pressure is automatically raised by the tensile force generated in the toothed belt, the toothed belt is also less painful.

  As described above, according to the present invention, the dummy teeth of the first member are attached to the second member by the retaining member in a state of being engaged with the teeth of the toothed belt, and the retaining member is toothed By pulling the belt to move the inside of the elongated hole to press the first member to the bottom plate side, the end of the toothed belt can be fixed easily and reliably without using a dedicated pressing device. In addition, the portion engaged with the first member having the dummy teeth disperses the tension of the belt main body and transmits it to the terminal fixture. Therefore, the toothed belt is damaged by breakage or cutting of the end of the toothed belt. It will not be unusable early.

It is a perspective view which shows the state which attached the edge part of the toothed belt to the terminal fixture of the toothed belt which concerns on Embodiment 1 of this invention. It is a top view which shows the state which attached the edge part of the toothed belt to the terminal fixture of the toothed belt which concerns on Embodiment 1 of this invention. It is a front view which shows the state which attached the edge part of the toothed belt to the terminal fixture of the toothed belt which concerns on Embodiment 1 of this invention. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. It is a disassembled perspective view which shows the state which attaches the edge part of a toothed belt to the terminal fixture of the toothed belt which concerns on Embodiment 1 of this invention. It is a front view which shows the preparation process and 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 securing member insertion process and 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. It is the FIG. 3 phase isometric view which concerns on the modification 1 of Embodiment 1 of this invention. It is the FIG. 3 phase isometric view which concerns on the modification 2 of Embodiment 1 of this invention. It is a front view which shows the preparatory process and 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 securing member insertion process and 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 insertion process in the terminal attachment method of the toothed belt which concerns on the modification 3 of Embodiment 1 of this invention. It is FIG. 6 phase etc. which concern on Embodiment 2 of this invention. It is a front view which shows the preparation process and 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 securing member insertion process and 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. It is FIG. 6 phase etc. which concern on Embodiment 3 of this invention. It is a front view which shows the preparation process and 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 securing member insertion process and 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 based on the drawings.

(Embodiment 1)
-Structure of end fitting for toothed belt-
1 to 6 show a terminal attachment 1 of a toothed belt according to a first embodiment of the present invention. In the present embodiment, the terminal attachment 1 is a surface on one side (here, the upper surface for convenience of explanation). A plurality of toothed parts 51 are for attaching the toothed belt 50 with an end arranged at the same pitch P.

  The end fitting 1 includes a first member 2 having a dummy tooth portion 2 a that meshes with the tooth portion 51 of the toothed belt 50. As shown to FIG. 7A, although the dummy tooth part 2a is arrange | positioned by seven identical pitch P, for example, the number is not specifically limited. The first member 2 has, for example, two first through holes 2 b extending in the width direction of the toothed belt 50. The first through hole 2b is an elongated hole inclined downward (to the side of the bottom plate 3a) in the pulling direction A of pulling out the toothed belt 50 in a state where the toothed belt 50 is placed. The pair of first through holes 2 b formed by the long 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 which is excellent in mechanical strength and excellent in abrasion resistance and slidability. If it is a resin molded product, even if it has a mold, it can be easily molded in a complicated shape. The first member 2 may be formed of another material such as metal or rubber.

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

  The retaining member comprises, 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, and a pin and a split pin.

-End mounting method of toothed belt-
Next, the terminal attachment method of the toothed belt 50 which concerns on this embodiment is demonstrated.

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

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

  Then, in the retaining member inserting step, the first member 2 is inserted between the pair of side plates 3b of the second member 3 and the rivet 4 is firstly aligned with the first through hole 2b and the second through hole 3c aligned. The through holes 2 b and the second through holes 3 c are inserted. In the present embodiment, since the retaining member comprises the rivet 4 and the push nut 5 into which the rivet 4 is fitted, the first member 2 can be fixed to the second member 3 easily and reliably.

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

  Finally, in the fitting step, the toothed belt 50 with which the first member 2 is engaged is pulled to move the rivet 4 to the inside of the first through hole 2b formed of a long hole and hold the first member toward the bottom plate 3a. Put it in place. 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 holes 2b inclined at the same angle is moved upward. At this time, since the first member 2 is pressed downward along with the upward movement, the force F for similarly pressing the toothed belt 50 downward (to the bottom plate 3 a side) in any of the two rivets 4. Occurs. Therefore, as the toothed belt 50 is pulled, the first member 2 is pressed downward (to the bottom plate 3a side) as it is pulled, so that the toothed belt 50 does not come off.

  In this manner, the end of the toothed belt 50 is reliably 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 off. Further, since the tensile force is converted to the surface pressure by the inclination of the long hole, the end of the toothed belt 50 can be fixed to the second member 3 with the same finish regardless of who works, and pressure input control is also unnecessary. is there. Furthermore, since the internal surface pressure is automatically raised by the pulling force generated on the toothed belt 50, the toothed belt 50 is also less painful.

  Therefore, according to the terminal fixture 1 of the toothed belt 50 according to the present embodiment, the end of the toothed belt 50 can be fixed easily and reliably without using a dedicated pressing device. Further, since the tension of the belt main body is dispersed and transmitted to the terminal fixture 1 by the portion engaged with the first member 2 having the dummy tooth portion 2a, the end portion of the toothed belt 50 is broken or cut, The toothed belt 50 does not become unusable prematurely.

-Modification 1-
FIG. 8 shows a terminal fixture 1 'according to a modification 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 the following modifications and embodiments, the same parts as those in FIGS. 1 to 7C will be assigned the same reference numerals and detailed explanations thereof will be omitted.

  In this modification, it has a pair of 1st members 2 and a pair of 2nd members 3 ', and the opposite side end of pulling out direction A and A' of toothed belt 50 in a pair of 2nd members 3 'is used. The bottom plates 3a are connected by a connecting portion 3d 'to face each other.

  As described above, by fitting and fixing the respective end portions of the toothed belt 50 to the separate first and second members 2 and 3 to which the bottom plate 3a is connected, it is possible to form a looped toothed member whose both ends are connected. A belt 50 is obtained.

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

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

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

  Next, in the first fitting step, while pulling the one toothed belt 50 with which the one first member is engaged in the pulling direction A to move the rivet 4 upward in the first through hole 2b formed of the long hole. The first member 2 is pressed and fitted to the bottom plate 3a side.

  Next, in the second belt placing step, the end of the other toothed belt 50 is placed on the bottom plate 3 a 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 so that the first through holes 2b and the second through holes 3c are aligned. The rivet 4 is inserted into the first through hole 2 b and the second through hole 3 c.

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

  Then, in the second fitting step, the other toothed belt 50 with which the other first member 2 is engaged is pulled in the pulling direction A ′ to move the rivet 4 upward inside the first through hole 2b consisting of a long hole. The first member 2 is pressed and fitted to the bottom plate 3a side while being made to move.

  In this way, at each end of the toothed belt 50, a force F is generated to press the end of the toothed belt 50 toward the bottom plate 3a by the first member 2. For this reason, each end of the toothed belt 50 does not come out even if a force is applied in the pulling directions A and A 'for pulling out the toothed belt 50 connected in a ring-like continuous manner from the second member 3'.

  In addition, although a pair of side plate is divided | segmented in the part of a connection part by one side and the other side, respectively, you may be connected integrally.

-Modification 2-
FIG. 9 shows a terminal fixture 1 ′ ′ according to a 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, in the connecting portion 3d ′ ′ of the present modification, the hinge portion 3e ′ ′ is provided at the middle portion, and the pair of second members 3 ′ ′ are rotated relative to each other around the hinge portion 3e ′ ′. It is possible to move.

-Modification 3-
10A to 10C show a terminal fixture 1 ′ ′ ′ according to the third modification of the first embodiment of the present invention, and the shape and the like of the first through holes 2b ′ ′ ′ are different from the above embodiment.

  That is, unlike the first embodiment, the first through holes 2 b ′ ′ ′ in this modification are not long holes but circular holes. On the other hand, with the second through hole 3c '' 'formed in the side plate 3b' '' of the second member 3 '' ', with the toothed belt 50 mounted, the drawing direction A for drawing out the toothed belt 50 The long hole is inclined downward (to the bottom plate 3a side). Also in this modification, the inclination angles of these adjacent long holes are equal.

  In this modification, the toothed belt 50 is basically attached to the second member 3 '' 'in the same manner as in the first embodiment. However, in the meshing step, the teeth 51 in the meshing process shown in FIG. 10B. The rivet 4 is positioned above the second through hole 3c ′ ′ ′, which is an elongated hole, after engagement of the dummy tooth portion 2a with the dummy tooth portion 2a.

  Then, in a fitted state, when the toothed belt 50 is pulled in the pulling out direction A, as shown in FIG. 10C, both of the two rivets 4 move below the second through holes 3c ′ ′ ′. Along with this movement, a force F is gradually generated which presses the toothed belt 50 downward (to the bottom plate 3 a side) by the first member 2 ′ ′ ′. For this reason, the toothed belt 50 does not come out of the second member 3 ′ ′ ′.

Second Embodiment
FIG. 11 shows a terminal fixture 101 according to a second embodiment of the present invention, which differs 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 extraction side in the second through holes 103c1 and 103c2 formed by the adjacent long 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 fixture 101 according to the present embodiment will be described using FIGS. 12A to 12C.

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

  Next, in the retaining member inserting step, the first member 102 is inserted between the pair of side plates 103b of the second member 103, and the first through holes 102b and the second through holes 103c1 on the pulling direction A side are aligned. The first member 102 is temporarily fixed to the second member 103 by inserting only one of the rivets 4 into the first through hole 102 b and the second through hole 103 c 1.

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

  Next, in the engaging step, as shown in FIG. 12B, the first member 102 is rotated about the rivet 4 to engage the dummy teeth 2a of the first member 102 with the teeth 51 of the end of the toothed belt 50. Match.

  Finally, in the fitting step, as shown in FIG. 12C, the toothed belt 50 with which the first member 102 is engaged is pulled to move the rivet 4 downward in the second through holes 103c1 and 103c2 formed of elongated holes (bottom plate The first member 102 is pressed and fitted to the bottom plate 3a side while being moved to the 3a side).

  As described above, with the first member 102 inclined while the rivet 4 is inserted into the second through hole 103 c 1 and the first through hole 2 with the smaller inclination angle θ 1, the first member 102 and the second member 103 Insert the rivet 4 by turning the first member 102 so as to align the end of the toothed belt 50 with the bottom plate 3a and position the second through hole 103c2 having the larger inclination angle θ2 of the other. You can also do so.

  In the present embodiment, the toothed belt 50 can be pressed with a larger force F in the direction of the second through hole 103c2 in the tight direction of the inclination angle θ1. Therefore, also in the terminal fixture 101 according to the present embodiment, the end of the toothed belt 50 can be fixed easily and reliably without using a dedicated pressing device.

(Embodiment 3)
FIG. 13 shows a terminal fixture 201 according to Embodiment 3 of the present invention, which is different from Embodiment 1 in that only one first through hole 202 b and one second through hole 203 c are provided.

  Next, the operation of the terminal fixture 201 according to the present embodiment will be described using 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 placing step, the toothed belt 50 is inserted between the bottom plate 3 a and the first member 202 in a state where the first member 202 is inclined.

  Next, in the meshing step, as shown in FIGS. 14B and 14C, the first member 202 is pivoted and moved downward about the rivet 4 so that the teeth 51 of the end of the toothed belt 50 are moved to the first member 202. Engage the dummy teeth 2a of

  Finally, in the fitting step, as shown in FIG. 14C, the toothed belt 50 with the first member 202 engaged is drawn to move the rivet 4 upward while moving the inside of the second through hole 203c formed of the elongated hole upward. Incorporate. Then, the first member 202 is gradually pressed downward, and a pressing force F is generated.

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

  Therefore, also in the terminal fixture 201 according to the present embodiment, the end of the toothed belt 50 can be fixed easily and reliably without using a dedicated pressing device.

(Other embodiments)
The present invention may be configured as follows for each of the above embodiments.

  That is, although the toothed belt 50 has the teeth 51 only on the upper surface in the above embodiments, the present invention may be applied to the toothed belt 50 having the teeth 51 on both the upper surface and the lower surface.

  Further, the first member and the toothed portion 51 of the toothed belt 50 may not be engaged near the end of the toothed belt 50 and the length may be adjusted by freely shifting the meshing position.

  In each of the above embodiments, the width of the toothed belt 50 is equal to the width of the first member, but if, for example, the width of the toothed belt 50 is twice the width of the first member, The first member may be fitted into the second member with the first member placed on the toothed belt 50. Then, the toothed belts 50 of different widths can be attached by the common first member.

  The above embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its applications and uses.

1,1 ', 1'',1''', 101,201 Terminal fixture
2, 2 ''', 102, 202 first member
2a Dummy teeth
2b, 2b ''', 102b, 202b first through holes
3,3 ', 3'',3''', 103,203 second member
3a bottom plate
3b, 3b ''', 103b, 203b side plate
3c, 3c ''', 103c1, 103c2, 203c second through holes
3d fixed piece
3d 'junction
3e bolt insertion hole
3e '''hinge
4 Rivet (retaining member)
5 Push nut (retaining member)
50 toothed belt
51 teeth

Claims (9)

An end fitting for an end-to-end toothed belt having teeth on at least one side surface, comprising:
A dummy tooth portion meshing with the tooth portion of the toothed belt, and a first member having a first through hole extending in the width direction of the toothed belt;
The first member engaged with the end of the toothed belt is a bottom plate placed together with the end of the toothed belt and a retaining member erected on both sides of the bottom plate and inserted into the first through hole And 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 comprising a long hole which is inclined toward the bottom plate in a direction in which the toothed belt is pulled out in a state where the toothed belt is placed. End fitting for toothed belts. In the toothed belt end fitting according to claim 1,
A plurality of the elongated holes are formed, and inclination angles of adjacent elongated holes are equal. In the toothed belt end fitting according to claim 1,
A plurality of the elongated holes are formed, and the inclination angle on the drawing side of the adjacent elongated holes is smaller than the inclination angle on the inserting side. A terminal attachment for a toothed belt according to any one of claims 1 to 3,
A pair of the first members and a pair of the second members;
A bottom plate is connected by a connection part so that the drawing direction opposite-side end parts of the said toothed belt in a pair of said 2nd members may be connected, and the terminal fixture of a toothed belt. In the end fitting of the toothed belt according to any one of claims 1 to 4,
A terminal attachment for a toothed belt, wherein the second member is formed of a single steel plate for the bottom plate and the pair of side plates. The end fitting of the toothed belt according to any one of claims 1 to 5,
The end fitting for a toothed belt according to claim 1, wherein the retaining member comprises a rivet and a push nut into which the rivet is fitted. In an end mounting method of a toothed belt, the end portion of an end toothed belt having a toothed portion on at least one side surface is attached to a second member,
A first member having a dummy tooth portion meshing 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 meshed with the end portion of the toothed belt A bottom plate placed together with an end of a toothed belt, and a pair of side plates provided on both sides of the bottom plate and having a second through hole formed therein through which a retaining member inserted into the first through hole is inserted. Preparing a second member having the
A belt placing step of placing an end of the toothed belt on the bottom plate of the second member;
The first member is inserted between a 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. Retaining member insertion step
An engaging step of engaging the dummy tooth portion of the first member with the tooth portion of the end portion of the toothed belt;
The first member is pressed to the bottom plate side while moving the inside of the first through hole or the second through hole formed by the elongated member by pulling the toothed belt in which the first member is engaged to draw the toothed belt. End fitting method of the toothed belt characterized in that it includes: In the terminal attachment method of a toothed belt according to claim 7,
After temporarily fixing the first member to the second member in the retaining member inserting step, the teeth are placed between the bottom plate and the first member in the belt placing step in a state where the first member is inclined. A terminal attachment method of a toothed belt characterized by inserting a belt. A terminal attachment method of a toothed belt in which ends of a pair of end-to-end toothed belts having toothed portions on at least one side surface are respectively attached to and connected to a second member,
A dummy tooth portion meshing with the tooth portion of the toothed belt and a pair of first members having a first through hole extending in the width direction of the toothed belt, and a pair of first members meshed with an end portion of the toothed belt A bottom plate on which a member is placed together with an end of the toothed belt and a second through hole which is erected on both sides of the bottom plate and into which a retaining member inserted in the first through hole is inserted is formed. Preparing a second member having at least a pair of side plates;
A first belt placing step of placing an end of one of the toothed belts on the bottom plate of the second member;
One of the first members is inserted between a pair of side plates of the second member, and the retaining member is a first through hole and a second through hole in a state in which the first through hole and the second through hole are aligned. A first retaining member inserting step of inserting into
A first meshing step of meshing the dummy tooth portion of one of the first members with the tooth portion of the end portion of one of the toothed belts;
The bottom plate of the first member is moved while moving the inside of the first through hole or the second through hole, which is a long hole, pulling the one toothed belt with which the first member is engaged and pulling the one toothed belt engaged. A first fitting step of pressing and fitting to the side,
A second belt placing step of placing an end of the other of the toothed belts on the bottom plate of the second member;
With the other first member inserted between the pair of side plates of the second member, and the first through hole and the second through hole being aligned, the retaining member is a first through hole and a second through hole. A second retaining member inserting step to be inserted into the
A second meshing step of meshing the dummy tooth portion of the other first member with the tooth portion of the other end of the toothed belt;
The bottom plate of the first member is moved while moving the inside of the first through hole or the second through hole formed by a long hole by pulling up the other toothed belt with which the other first member is engaged. And a second fitting step of pressing and fitting it to the side.

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