JP4597181B2 - Connecting ring with pulley - Google Patents

Description

  The present invention relates to a connecting ring with a pulley.

  Conventionally, connecting rings with pulleys such as Design Registration No. 785871 (Patent Document 1) have been implemented.

  The connecting ring with a pulley can be attached to the rope 20 so as to be movable, for example, by placing a pulley on the rope 20 stretched between appropriate two points, and the connecting ring with the pulley attached to the rope 20 can be connected. By connecting and suspending the eyelet 22 of the sheet 21 with eyelet 22 to the ring, the sheet 21 can be used as a curtain that can be opened and closed along the rope 20 (see FIG. 6). It can be used for hanging and connecting materials and moving along the rope 20.

Design Registration No. 785871

  Incidentally, the ring base of the connecting ring with a pulley as in Patent Document 1 is provided with a straight collar (shaft collar) having a width substantially the same as the width of the pulley, and one end of the shaft collar is a pulley. After the pulley is fitted from the open end to the shaft collar, the open end is closed by, for example, connecting the auxiliary collar of another part by caulking. The connecting ring is formed and the pulley is provided in a retaining state.

  That is, for example, with respect to the ring base of the connecting ring that is bent in advance in a C shape or the like, the shaft hole of the pulley has a shaft shaft, especially when the shape is such that there are bent portions on the left and right sides of the shaft flange portion. It is formed to have a hole size that is slightly larger than the diameter of the ring base so that it does not rattle significantly, and the shaft is moved by moving the pulley along the bent portion of the ring base. Since it cannot be located in the buttock, it is necessary to apply the complicated processing as described above to the ring base in order to attach the pulley, so that the manufacture is troublesome and the ring base is not a single piece. Therefore, there was a concern of insufficient strength.

  The present invention relates to an improvement of such a connecting ring with a pulley, and does not require a configuration in which a part of the connecting ring is made as a separate part. Thus, an epoch-making connecting ring with a pulley that enables easy assembly of the pulley is provided.

  The gist of the present invention will be described with reference to the accompanying drawings.

  An opening / closing body 3 is provided at one end of the opening 2 of the ring base 1 having an opening 2 through which a connected object enters and exits, and a shaft collar 1A for supporting a pulley 4 shaft is provided on the ring base 1. The provided connecting ring A and a pair of substantially half-cylindrical bearing halves 16 which constitute a cylindrical bearing body 6 by abutting and abutting each other and can be rotatably fitted to the shaft flange portion 1A. , And a pulley 4 having a shaft hole 5 that can be fitted and attached to the cylindrical bearing body 6 constituted by the pair of bearing halves 16, and the diameter of the shaft hole 5 of the pulley 4 is determined as follows. The diameter of the hole larger than the diameter of the brazing material constituting the ring base 1 is set, and the pulley 4 fitted to the ring base 1 can be moved along the ring base 1 through the shaft hole 5. When the pulley 4 is moved to the shaft flange 1A along the ring base 1, the shaft hole 5 and the shaft flange 1A of the pulley 4 are configured. In the connecting ring with pulleys, the bearing halves 16 are configured to be inserted into the clearance 7 generated between the shaft hole 5 and the shaft flange portion 1A. It is concerned.

  The ring base 1 is formed in a shape having a bent portion 1B in which a saddle member is bent on the left and right sides of the shaft flange portion 1A, and the pulley 4 fitted to the ring substrate 1 through the shaft hole 5 is provided. After moving to the shaft flange 1A along the bent portion 1B and inserting one of the bearing halves 16 into the clearance 7 generated in the shaft hole 5 and the shaft flange 1A of the pulley 4, the remaining clearance 7 The other bearing half body 16 is inserted into the bearing body 6 so that the bearing body 6 composed of a pair of bearing half bodies 16 is rotatably fitted to the shaft flange portion 1A, and the shaft hole 5 is formed in the bearing body 6. The pulley 4 is configured to be fitted and fitted through the connecting ring with pulleys according to claim 1.

  Further, each of the pair of bearing halves 16 is configured to have deformation elasticity, and relates to the connecting ring with a pulley according to any one of claims 1 and 2.

  The large-diameter hole portion 15 having a diameter larger than the diameter of the shaft hole 5 is formed at an end of the shaft hole 5 according to any one of claims 1 to 3. This relates to the described connecting ring with pulley.

  Further, at the both ends of the bearing halves 16, when the bearing halves 16 are inserted into the shaft holes 5, the bearing halves 16 are latched to the both ends of the shaft holes 5 to be removed from the shaft holes 5. Locking portions 16A and 16B to be in a stopped state are formed, and the connecting ring with pulleys according to any one of claims 1 to 4, is provided.

  In addition, a locking portion 16B that locks to the end of the shaft hole 5 is provided at the end of each bearing half 16, and the abutment contact portion 18 of each bearing half 16 is provided with each bearing half. A positioning engagement portion 19 is provided for engaging each other when the abutting and abutting 16 are brought into contact with each other and positioning the abutting and abutting state. When each of the bearing halves 16 is inserted into the shaft hole 5, The locking portions 16B are locked to the end portions, and the positioning engagement portions 19 of the bearing halves 16 are engaged with each other so that the bearing halves 16 are positioned with respect to each other. The connecting ring with a pulley according to any one of claims 1 to 4, wherein the connecting ring is configured to prevent the shaft hole 5 from coming off.

  Since the present invention is configured as described above, the pulley can be easily assembled to the ring base that is previously bent into a predetermined shape without subjecting the ring base of the connecting ring to complicated processing as in the conventional example. Therefore, the design can be realized easily and at a low cost, and it is excellent in mass productivity. Also, since it is possible to adopt a high-strength integral ring substrate, there is no fear of insufficient strength, so it is extremely practical. A revolutionary connecting ring with pulleys.

  In addition, in the invention according to claim 2, it is possible to realize a connecting ring with a pulley having a configuration in which the pulleys are prevented from lateral displacement and stably operate by having bent portions on both sides, and a configuration in which the ring base has a bent portion. Thus, the pulley-equipped connecting ring can be easily moved to the shaft flange along the bent portion and assembled.

  In the invention according to claim 3, since the bearing half body having deformation elasticity can be easily inserted (for example, press-fitted) into the gap between the shaft flange portion and the shaft hole, the assembly operation of the pulley is further facilitated. It becomes a connecting ring with a pulley with a configuration excellent in practicality.

  In the invention according to claim 4, it is easy to move the pulley along the right-angled bent portion through the shaft hole by the large-diameter hole portion formed at the end portion of the shaft hole. Since the bearing half body can be easily inserted into the gap between the shaft hole and the shaft flange portion from the large diameter hole portion, the assembly operation of the pulley can be performed more easily. It becomes a connecting ring with a pulley.

  Further, in the inventions according to claims 5 and 6, since the pulley is mounted in a retaining state (positioning state) with respect to the bearing body, further stable operation of the pulley with respect to the shaft flange portion performed through the bearing body. It becomes a connecting ring with a pulley of a configuration excellent in practicality that can be realized.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  For example, the pulley 4 is inserted into the ring base 1 through the opening 2, the shaft hole 5 of the pulley 4 is fitted into the ring base 1, and the pulley 4 is moved along the ring base 1 to the shaft flange 1 </ b> A.

  At this time, the shaft hole 5 having a diameter larger than the diameter of the shaft flange portion 1A has a curved portion or a bent portion 1B even if there is a bent portion or a bent portion 1B in the middle of the ring base 1. It can move along.

  When the pulley 4 is positioned on the shaft flange portion 1A, a gap 7 is formed between the shaft hole 5 and the shaft flange portion 1A. One bearing half body 16 is inserted into the gap 7 and then remains. By inserting the other bearing half body 16 into the gap 7 to be formed, the bearing body 6 composed of a pair of bearing half bodies 16 is rotatably fitted and attached to the shaft flange portion 1A. The pulley 4 is fitted and attached through the hole 5, and the pulley 4 is rotatable with respect to the shaft flange 1 </ b> A via the bearing half 16 (bearing body 6) without rattling.

  Further, for example, if the pair of bearing halves 16 are configured to have deformation elasticity, even if the gap 7 between the shaft flange portion 1A and the shaft hole 5 is narrow, the bearing halves 16 are deformed into the gap 7. Therefore, the work of assembling the bearing half 16 can be performed more easily.

  Therefore, after the pulley 4 is positioned (moved) on the shaft flange 1A of the ring base 1 in this way, the pair of bearing halves 16 are simply inserted into the gap 7 between the shaft flange 1A and the shaft hole 5. Since the pulley 4 can be assembled to the ring base 1 (shaft flange 1A) of the connecting ring A by a simple operation, the ring base 1 is bent and formed into a predetermined shape in advance without performing complicated processing as in the conventional example. The pulley 4 can be easily assembled to the ring base 1 and is excellent in mass productivity. Further, since the ring base 1 can be formed as a single body, the commercial value of the high strength ring base 1 is high. It becomes a revolutionary connecting ring with a pulley that is extremely practical, such as a connecting ring with a pulley can be realized.

  A first embodiment of the present invention will be described with reference to FIGS.

  The present embodiment relates to a connecting ring with a pulley provided with a pulley 4 on a connecting ring A having a ring base 1 formed by bending a saddle material into a hook shape or a substantially C shape as shown in FIG. .

  Specifically, as shown in FIG. 3, the ring base 1 of the present embodiment is formed by bending, for example, a metal braid (round braid) into a substantially C shape, and this C-shaped brace (ring base). The ring-shaped connecting ring A is configured by pivotally opening and closing the opening / closing body 3 in the opening 2 between both ends of 1).

  In addition, this ring base body 1 has one side portion (upper side portion in the drawing) formed into a straight shaft flange portion 1A having a bent portion 1B in which a flange material is bent on the left and right. More specifically, as shown in FIG. 4, the upper portion is bent in a substantially U shape, and the straight flange portion between the substantially right-angled bent portions 1B on both sides is defined as the shaft flange portion 1A. The pulley 4 is configured to be fitted and mounted so as to be rotatable.

  Further, the opening / closing body 3 is formed by bending a metal wire into a substantially U-shape, and the opening / closing body 3 is always configured so that the pivoting positions of both base ends are shifted. The opening / closing body 3 can be opened and rotated inward of the ring base 1 against the closing elasticity, and if the opened opening / closing body 3 is released, the opening / closing body 3 is automatically released by its own closing elasticity. The opening 2 is closed.

  The pulley 4 of the present embodiment is made of, for example, metal, and as shown in FIG. 3, the diameter of the shaft hole 5 in the center is set to the diameter of the saddle material (including the shaft flange 1A) constituting the ring base 1. The shaft hole 5 can be fitted to the ring base 1 from the opening 2 and can be moved along the ring base 1 while overcoming the bent portion 1B and the shaft flange part. 1A, and when the pulley 4 is moved along the ring base 1 to the shaft flange portion 1A, a gap 7 is formed between the shaft hole 5 of the pulley 4 and the shaft flange portion 1A. It is configured to occur.

  Further, the structure for attaching the pulley 4 to the shaft flange 1A will be described. In this embodiment, as shown in FIG. 3, a pair of substantially half-cylinders constituting a cylindrical bearing body 6 by abutting and contacting each other. The bearing half body 16 is provided, and the bearing half body 16 is interposed in the gap 7 formed between the shaft hole 5 of the pulley 4 and the shaft flange portion 1A. 4 is configured to be rotatably attached to the shaft flange 1A without rattling.

  Specifically, as shown in FIGS. 2 and 4, the shaft hole 5 of the pulley 4 of the present embodiment has a hole length dimension substantially equal to the cylinder length of the bearing body 6 (bearing half body 16). And, further, set so as to have a hole diameter dimension substantially equal to the outer diameter dimension of the bearing body 6 constituted by the pair of bearing halves 16, and press-fit each bearing half body 16 into the shaft hole 5. Thus, the pulley 4 is mounted on the bearing body 6 in a fitted state.

  Further, a large-diameter hole portion 15 having a diameter larger than the diameter of the shaft hole 5 is formed at both end portions of the shaft hole 5, and the large-diameter hole portions 15 are provided at both ends. It is easy to move the pulley 4 along the bent portion 1B at a substantially right angle via the shaft, and it is also possible to insert the bearing half body 16 from the large diameter hole portion 15 into the shaft hole 5 (gap 7). It is configured to be easily performed.

  Further, each large-diameter hole portion 15 at both ends has a first large-diameter hole portion 15A serving as an inclined hole edge of a divergent shape (a shape in which the diameter increases toward the end portion) located on the outside, It is configured to include a second large-diameter hole portion 15B located inside the hole portion 15A and having a diameter dimension equivalent to the minimum diameter dimension of the first large-diameter hole section 15A.

  On the other hand, the bearing body 6 (each bearing half body 16) of the present embodiment is made of a resin having deformation elasticity, and is configured to have a shape having an inner diameter dimension that allows free rotation with respect to the shaft flange portion 1A. When the bearing halves 16 are fitted to the shaft flange portion 1A, the bearing body is formed by the bent portions 1B existing on both sides of the shaft flange portion 1A. 6 is prevented from moving (laterally shifting) along each bent portion 1B (see FIG. 4).

  Further, locking portions 16A and 16B that are locked to both ends of the shaft hole 5 when they are inserted into the shaft hole 5 are formed at both end portions of each bearing half body 16.

  Specifically, a claw-shaped protrusion is integrally formed at one end of each bearing half 16 (the left end in the drawing) at both end positions of the bearing half 16 in the arc direction. The protrusion is a first locking portion 16A.

  Further, the outer peripheral surface of the first locking portion 16A is formed on an inclined surface 17 inclined downward toward one side end portion, and one side end portion of the bearing half body 16 where the inclined surface 17 exists is formed in the shaft hole 5. By adopting the insertion tip portion for the shaft, the bearing half body 16 can be easily inserted into the large diameter hole portion 15 (first diameter large hole portion 15A) of the shaft hole 5 of the pulley 4.

  Further, the inclined surface 17 comes into contact with the inner peripheral surface of the shaft hole 5 when the bearing half 16 is inserted into the shaft hole 5. At this time, the bearing half 16 has a semi-cylindrical shape. Since the first locking portions 16A protrude from both ends in the arc direction of the half body 16, the bearing half body 16 is relatively easily deformed and deformed, thereby preventing the bearing half body from generating a large insertion resistance. 16 can be easily inserted. Then, the bearing half 16 is inserted into the back (press-fit), and the first locking portion 16A reaches the rear end portion (the second diameter large hole portion 15B of the large diameter hole portion 15) of the shaft hole 5 in the insertion direction. Then, the first locking portion 16A is automatically locked to the second large diameter hole portion 15B by the return elasticity of the bearing half body 16 itself.

  Further, the other end of each bearing half 16 is formed into a bowl-shaped large diameter portion having a diameter larger than the diameter of the shaft hole 5, and this entire circumference is formed. When the bearing half body 16 is inserted into the shaft hole 5 from the one side end where the first locking portion 16A exists to the back as shown in FIG. The locking portions 16A and 16B of the shaft portion are locked to the second diameter large hole portion 15B of the large diameter hole portion 15 at both ends of the shaft hole 5, whereby the pulley 4 is prevented from coming off from the bearing body 6 (positioning without lateral displacement). State). Therefore, since the bearing body 6 is positioned on the shaft flange 1A by the bent portions 1B, and the pulley 4 is positioned relative to the bearing body 6, the pulley 4 is free from the shaft flange 1A. The pulley 4 is configured to operate stably only at the shaft flange 1A position without moving. The pulleys 4 are positioned with respect to the bearing body 6 by the locking portions 16A and 16B at both ends of each bearing half body 16 contacting or approaching the second diameter large hole portions 15B at both ends of the shaft hole 5. You may comprise so that it may be in a state.

  Next, a method for assembling the pulley 4 to the connecting ring A according to this embodiment will be described. The pulley 4 is fitted on the ring base 1 through the shaft hole 5, and the pulley 4 is attached along the ring base 1. After being moved to the shaft flange 1A and inserting each of the bearing halves 16 into the gap 7 generated in the shaft hole 5 and the shaft flange 1A of the pulley 4, the other bearing half is inserted into the remaining gap 7. Insert 16.

  More specifically, referring to FIG. 5, for example, the pulley 4 is inserted into the ring base 1 from the opening 2, and the shaft hole 5 of the pulley 4 is fitted to the ring base 1, and the pulley along the ring base 1. 4 is moved to be positioned on the shaft flange 1A beyond the bent portion 1B.

  Then, since the shaft hole 5 forms a gap 7 between the shaft flange portion 1A, first, one bearing half body 16 is inserted into this gap 7. At this time, for example, the arrow in FIG. As shown in FIG. 5 (b), when the gap 7 between the shaft flange portion 1A and the shaft hole 5 is biased upward by moving the pulley 4 upward relative to the shaft flange portion 1A to decenter the shaft hole 5. It is easy to insert one of the bearing halves 16 into the widened upper gap 7 as indicated by the arrows in FIG.

  Next, as shown by the arrow in FIG. 5C, the ring base 1 portion that hangs downward from the bent portion 1B is an obstacle to the insertion work of the bearing half 16 so that the other bearing half 16 can be easily inserted. One bearing half 16 inserted together with the pulley 4 with respect to the shaft flange 1A is rotated by, for example, 180 degrees until the remaining gap 7 is positioned above (for example, as shown in FIG. 5D). When the other bearing half body 16 is inserted (press-fit) into the remaining gap 7 moved to the upper part, the bearing body 6 composed of the pair of bearing half bodies 16 is in a state of being rotatably fitted to the shaft flange portion 1A. The pulley 4 is fitted and attached to the bearing body 6 through the shaft hole 5, and the pulley 4 does not rattle with respect to the shaft flange portion 1 </ b> A via the bearing half body 16 (bearing body 6). It can turn freely.

  Therefore, according to this embodiment configured as described above, the pulley 4 and the pair of bearing halves 16 (bearing body 6) can be easily assembled to the ring base 1 (shaft flange 1A) of the connecting ring A. Therefore, the pulley 4 can be easily assembled to the ring base 1 bent in advance in a predetermined shape without subjecting the ring base 1 to complicated processing as in the conventional example, and excellent in mass productivity. Since the ring base 1 can be constructed as a single body by means of this, a revolutionary pulley with excellent practicality, such as a high-commercial connecting ring with a pulley using the high-strength ring base 1 can be realized. It becomes an attached linking ring.

  A second embodiment of the present invention will be described with reference to FIGS.

  The present embodiment is a case where the configuration of the pair of bearing halves 16 and the insertion structure of the bearing halves 16 into the gap 7 are different in the first embodiment.

  Specifically, each bearing half 16 is inserted into the gap 7 from opposite directions.

  Therefore, also in this embodiment, the large-diameter hole portion 15B at both ends of the shaft hole 5 of the pulley 4 has the second large-diameter portion 15B. The second large-diameter portion 15B is shown in FIGS. As shown, the second diameter large portion 15B existing at the one end and the second large diameter portion 15B present at the other end are formed only in a range corresponding to a half circumference with respect to the entire circumference of the shaft hole 5. The formation position is set to a position reversed 180 degrees.

  Accordingly, when each of the bearing halves 16 is inserted into the shaft hole 5 and each of the second locking portions 16B is locked (fitted) to the second large diameter portion 15B, each of the bearing halves 16 is inserted into the shaft hole 5. In this case, the rotation is prevented.

  In addition, each bearing half 16 of the present embodiment is configured so as not to have the first locking portion 16A at one end, and instead, the butt contact (surface) portion 18 of each bearing half 16 is When the bearing halves 16 are brought into butt contact with each other, a positioning engagement portion 19 is provided to engage with each other to position the butt contact state, and when the bearing halves 16 are inserted into the shaft holes 5 The second engaging portions 16B are engaged with the second large diameter portions 15B at both ends of the shaft hole 5, and the positioning engaging portions 19 of the bearing half bodies 16 are engaged with each other. The half body 16 is configured to be prevented from being detached from the shaft hole 5.

  More specifically, a slight step portion (step height of 0.2 mm) is formed at a substantially intermediate position in the length direction of the butt contact surface portion 18 of each bearing half body 16, and this step portion is used as the positioning engagement portion 19. Yes.

  Further, as shown in FIG. 10, the butt contact surface portion 18 of each bearing half body 16 includes a tip side surface portion 18 A and a positioning engagement portion 19 from the insertion tip portion of the bearing half body 16 to the positioning engagement portion 19. After the base end side surface portion 18B extending to the insertion base end portion is formed in an inclined surface that is parallel to each other and inclined by 2 ° with respect to the horizontal plane, one bearing half body 16 is inserted into the gap 7; Subsequently, when the other bearing half body 16 is inserted into the remaining gap 7, the front end side surface portions 18A of the respective bearing half bodies 16 come into contact with each other, and the front end side surface portions 18A are inclined surfaces. As the positioning engagement portion 19 of the other bearing half body 16 gets over the tip side surface portion 18A of one bearing half body 16, the positioning engagement between the two bearing engagement portions 19 increases. The portions 19 are engaged with each other, and the front end side portions 18A of the respective bearing halves 16 The base end side surfaces 18B come into contact with each other, and the respective bearing halves 16 are unable to move in the direction of the abutting contact surface portion 18, and at this time, the second locking portions 16B of the respective bearing half bodies 16 are brought into contact with each other. Each of the bearing halves 16 (bearing body 6) is locked to the second diameter large portion 15B so as to be prevented from coming off from the shaft hole 5 (the pulley 4).

  At this time, since the tip side surface portions 18A of the respective bearing halves 16 are inclined surfaces, when the other bearing halves 16 are pushed, they can be pushed in without any resistance. Since the step is only 0.2 mm, the insertion operation can be performed relatively easily without requiring a strong force for pushing.

  Next, the assembly method of the pulley 4 to the connection ring A of a present Example is demonstrated using FIG.

  For example, the pulley 4 is inserted into the ring base 1 from the opening 2, the shaft hole 5 of the pulley 4 is fitted into the ring base 1, the pulley 4 is moved along the ring base 1, and the shaft is moved beyond the bent portion 1 </ b> B. It is located on the heel part 1A.

  Then, since the shaft hole 5 creates a gap 7 between the shaft flange portion 1A, first, one bearing half body 16 is inserted into this gap 7 and the second locking portion 16B is inserted into the second large diameter portion 15B. In this case, as shown by an arrow in FIG. 5A, for example, the shaft flange 5 is eccentrically moved by moving the pulley 4 upward relative to the shaft flange 1A. If the gap 7 between 1A and the shaft hole 5 is biased upward, it is easy to insert one bearing half 16 into the widened gap 7 as shown by the arrow in FIG.

  Next, as shown by the arrow in FIG. 5C, the ring base 1 portion that hangs downward from the bent portion 1B is an obstacle to the insertion work of the bearing half 16 so that the other bearing half 16 can be easily inserted. One bearing half 16 inserted together with the pulley 4 with respect to the shaft flange 1A is rotated by, for example, 180 degrees until the remaining gap 7 is positioned above (for example, as shown in FIG. 5D). The other bearing half body 16 is inserted (press-fitted) into the remaining gap 7 moved upward from the opposite direction to the insertion direction of one bearing half body 16 to engage the second locking portion 16B with the second large diameter portion 15B. When the positioning engaging portions 19 are engaged with each other, the bearing body 6 composed of the pair of bearing halves 16 is in a state of being rotatably fitted to the shaft flange portion 1A. The pulley 4 is fitted and attached to the shaft hole 5 through the shaft hole 5, and the pulley 4 does not rattle against the shaft flange 1A. , The rotatable via a bearing half 16 (the bearing body 6).

  Other configurations are the same as those of the first embodiment.

  The present invention is not limited to the first and second embodiments, and the specific configuration of each component can be designed as appropriate.

1 is a perspective view showing Example 1. FIG. FIG. 3 is an explanatory oblique sectional view of a pulley and a bearing body of Example 1. 1 is an exploded perspective view of Example 1. FIG. FIG. 3 is a cutaway explanatory view of a main part of the first embodiment. It is explanatory drawing which shows the assembly | attachment procedure of the pulley of Example 1. FIG. 1 is a schematic explanatory perspective view showing a usage state of Example 1. FIG. 3 is an exploded perspective view of Example 2. FIG. It is a decomposition explanatory view showing a pulley and a pair of bearing halves of Example 2. It is explanatory drawing which showed the bearing half body of Example 2 from each direction. It is explanatory drawing which showed the detail of the A section of FIG. It is explanatory drawing which shows the assembly | attachment procedure of the pulley of Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ring base | substrate 1A Shaft collar part 1B Bending part 2 Opening part 3 Opening / closing body 4 Pulley 5 Shaft hole 6 Bearing body 7 Crevice
15 diameter large hole
16 Bearing half
16A Locking part
16B Locking part
18 Butt contact part
19 Positioning engagement part A Connecting ring

Claims (6)

  An opening / closing body is provided at one end of the opening of the ring base having an opening through which the connected object enters and exits, and a connecting ring provided with a shaft collar part for supporting the pulley shaft on the ring base is mutually connected. A pair of substantially half-cylindrical bearing halves that can be rotatably fitted to the shaft flange by forming a cylindrical bearing body by abutting and abutting, and a cylinder constituted by the pair of bearing halves A pulley having a shaft hole that can be fitted and attached to the bearing body, and the hole diameter of the shaft hole of the pulley is set to be larger than the diameter of the saddle constituting the ring base. The pulley configured to be fitted to the ring base through the shaft hole is configured to be movable along the ring base, and the pulley is moved to the shaft collar along the ring base. In this case, a gap is formed between the shaft hole of the pulley and the shaft collar part, and the gap generated between the shaft hole and the shaft collar part is formed. Pulley with coupling ring, characterized by being configured the respective bearing halves in a shape that can be input.   The ring base is formed in a shape having a bent portion obtained by bending a hook material on the left and right of the shaft flange portion, and the pulley fitted to the ring base through the shaft hole is formed along the bent portion. And inserting one of the bearing halves into the gap generated in the shaft hole and the shaft flange portion of the pulley, and then inserting the other bearing half into the remaining gap. 2. The pulley according to claim 1, wherein the bearing body made of a body is rotatably fitted to the shaft flange and the pulley is fitted to the bearing body through a shaft hole. Linked ring.   The connecting ring with a pulley according to any one of claims 1 and 2, wherein each of the pair of bearing halves is configured to have deformation elasticity.   The connection with a pulley according to any one of claims 1 to 3, wherein a large-diameter hole portion having a diameter larger than that of the shaft hole is formed at an end of the shaft hole. ring.   At both ends of each of the bearing halves, there is a locking portion that locks the both ends of the shaft hole when the bearing halves are inserted into the shaft hole so as to prevent the bearing halves from coming off from the shaft hole. It formed, The connecting ring with a pulley of any one of Claims 1-4 characterized by the above-mentioned.   At the end of each of the bearing halves, a locking portion is provided for locking to the end of the shaft hole. When the bearing halves are brought into butt contact with the butt contact portion of each bearing half A positioning engagement portion that engages with each other and positions the butt contact state is provided, and when the bearing halves are inserted into the shaft holes, the locking portions are locked to the end portions of the shaft holes. The positioning engagement portions of the bearing halves are engaged with each other so that the bearing halves are positioned with respect to each other, and the bearing halves are prevented from being detached from the shaft holes. The connecting ring with a pulley of any one of Claims 1-4.

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