JP3722755B2 - Bead threading device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bead threading device for passing a thread through the center hole of beads for handicraft and decoration.
[0002]
[Prior art]
A conventional bead threading device has been disclosed in Japanese Patent No. 2930900. In this bead passing device, a needle body that passes through the center hole of the bead is provided vertically. The needle body has two or more constrictions formed in the vertical direction, and a hook portion for hooking a thread is provided at the lower end. Further, the apparatus body is provided with two or more gripping tools having a pair of gripping arms that open and close in the vertical direction corresponding to the constriction of the needle body, and when the pair of gripping arms are closed, the constriction of the needle body is prevented. It is formed so as to be sandwiched. The pair of gripping arms are opened and closed by cam members provided on the base of the gripping tool. Each cam member is configured to operate with an arm provided on the cam member separated from a drive lever of a drive shaft provided separately. Further, the beads passed through the needle body are accommodated in the container and are sent out to the through hole side by a moving member provided near the lower end opening of the container.
[0003]
[Problems to be solved by the invention]
The conventional bead passing device has a problem that the cam members for opening and closing the pair of gripping arms are individually attached to the base of the gripping tool and assembled, and the structure is complicated and the assembly is troublesome. In addition, the cam member is actuated when the drive lever of the drive shaft provided separately from the arm of the cam member is separated, but it is difficult to align the position of the arm and the drive lever. However, there is a problem that it may not operate due to a shift. Furthermore, since driving of the drive shaft and driving of the moving member are performed by separate driving means, there is a problem that the structure is complicated and cannot be manufactured at low cost. Furthermore, when the cam member becomes inoperable due to some trouble, there is a problem that the drive shaft, the drive lever, the arm or the like having a drive lever that is separated from and contacting the arm of the cam member may be broken.
[0004]
The present invention has been invented in view of the above problems, and is provided with a contact member that opens and closes a pair of sandwiching members on a rotating shaft, so that the structure is simple and easy to assemble, and the contact member and the pair of sandwiching members are provided. It is a first object of the present invention to provide a bead threading device that can be easily aligned. It is a second object of the present invention to provide a bead threading device that can be operated by hand by using an arm member as the driving means and can be easily used by an infant. It is a third object of the present invention to provide a bead threading device that has a simple structure and can be manufactured at low cost by driving the rotating shaft and the guide member that guides the beads with a single driving means. Also, a clutch means is provided between the drive means and the rotating shaft, and a bead threading device is provided that can prevent the mechanism from being broken even if the rotating shaft is loaded and unable to rotate. This is the fourth purpose.
[0005]
[Means for Solving the Problems]
In order to achieve the first object, the bead threading device according to claim 1 of the present application has the following means.
(A) A through shaft that passes through the center hole of the beads is provided in the apparatus main body substantially vertically.
(B) The through shaft has two or more sandwiched portions formed in the vertical direction, and a hook portion for hooking a thread is provided at the lower end.
(C) The apparatus main body is provided with two or more clamping means having a pair of clamping members that open and close in the vertical direction corresponding to the sandwiched portion of the through shaft, and when the pair of clamping members are closed, the through shaft It is formed so that the to-be-clamped part may be clamped.
(D) The apparatus main body is provided with a rotation shaft that is rotatable, and the rotation shaft is provided with two or more contact members in the vertical direction for opening and closing the two or more pairs of clamping members in order. thing.
(E) The device main body is provided with a driving means for forcibly rotating the rotating shaft.
[0006]
In the bead threading device according to claim 2 of the present application, in order to achieve the second object, the driving means is an arm member.
[0007]
In order to achieve the third object, the bead threading device according to claim 3 of the present application has the following means in addition to the above means.
(A) The apparatus main body is provided with an accommodation recess for accommodating beads.
(B) A guide port for guiding the beads accommodated in the accommodating recess to the through shaft is formed in the bottom wall of the accommodating recess.
(C) A guide member that guides the beads in the storage recess to the guide port is rotatably provided in the storage recess, and the guide member is forcibly rotated together with the rotation shaft by the driving means. .
[0008]
In order to achieve the fourth object, the bead threading device according to claim 4 of the present application transmits the rotation of the driving means to the rotating shaft between the driving means and the rotating shaft, and a load is applied to the rotating shaft. In this case, clutch means is provided in which the drive means is idle.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
One embodiment of a bead threading device according to the present invention will be described with reference to FIGS. FIG. 1 is an overall perspective view of a bead threading device according to the present invention. FIG. 2 is an exploded perspective view of FIG. FIG. 3 is a side sectional view of FIG. FIG. 4 is an explanatory diagram for explaining the movement of the bead threading device.
[0010]
The bead passing device 1 has a device body 2. In the apparatus main body 2, a through shaft 60 that passes through the center hole 71 of the bead 70 is provided substantially vertically. The through-shaft 60 has two or more sandwiched portions 60a to 60d formed in the vertical direction, and a hook portion 63 for hooking the thread 72 at the lower end. In the apparatus main body 2, two or more clamping means 20 a to 20 d having a pair of clamping members 21 and 31 that open and close are provided in the vertical direction corresponding to the sandwiched portions 60 a to 60 d of the through shaft 60. The members 21 and 31 are formed so as to sandwich the sandwiched portions 60a to 60d of the through shaft 60 when closed.
[0011]
The apparatus main body 2 is provided with a rotary shaft 40 rotatably. The rotary shaft 40 has contact members 45a to 45d that open and close the two or more pairs of sandwiching members 21 and 31 in the vertical direction. There are at least two. The apparatus main body 2 is provided with driving means 50 for forcibly rotating the rotary shaft 40. The driving unit 50 may be the arm member 52.
[0012]
The apparatus main body 2 is provided with an accommodation recess 13 for accommodating the beads 70. In the bottom wall 11 of the housing recess 13, a guide port 16 for guiding the beads 70 housed in the housing recess 13 to the through shaft 60 is formed. A guide member 55 that guides the beads 70 in the storage recess 13 to the guide port 16 is rotatably provided in the storage recess 13, and the guide member 55 is forcibly rotated together with the rotary shaft 40 by the driving means 50. It has become.
[0013]
A clutch means 80 is provided between the drive means 50 and the rotary shaft 40 to transmit the rotation of the drive means 50 to the rotary shaft 40 and to rotate the drive means 50 when the rotary shaft 40 is loaded. be able to.
[0014]
The bead threading device 1 will be described in more detail. The bead passing device 1 has a device body 2. The apparatus main body 2 includes a frame body 8 having a substantially U-shaped cross section including a rear side plate 3, a left side plate 5, and a right side plate 6, a ground plate 7 fixedly provided at the lower end of the frame body 8, and a frame body 8. And a bead container 10 fixedly provided at the upper end. A bearing plate 9 is provided at a substantially intermediate portion of the frame body 8.
[0015]
The bead container 10 includes a substantially circular bottom wall 11 and an annular peripheral wall 12 fixedly provided on the top of the bottom wall 11, and an accommodating recess 13 is formed by the bottom wall 11 and the peripheral wall 12. The bead container 10 is placed on projecting pieces 5 a and 6 a provided with a bottom wall 11 fixed to the upper ends of the left side plate 5 and the right side plate 6, and through holes 11 a and 11 a formed in the bottom wall 11. The threaded screws 15 and 15 are fixed to the frame 8 by screwing them into the projecting pieces 5a and 6a.
[0016]
The apparatus body 2 is provided with four clamping means 20a to 20d in the vertical direction. The clamping means 20a to 20d are composed of a pair of clamping members 21 and 31 whose rear portions are pivotably connected and whose front portions are opened and closed, and an elastic member 30 that biases the pair of clamping members 21 and 31 in a closing direction. .
[0017]
One clamping member 21 is formed in a plate shape, a semicircular clamping part 22 is formed inside the front part, a semicircular cutout 23 is formed inside the substantially intermediate part, and a circular axis is formed inside the rear part. The boss 25 protrudes substantially vertically. A protrusion 26 projects from a substantially intermediate portion of the semicircular cutout 23. As shown in FIG. 5, the protrusion 26 has an inclined surface 26a and a vertical surface 26b. The boss 25 has a connecting shaft 25 a formed on the upper end surface, a connecting hole 25 b formed on the lower end surface, and a lower end half 25 c protruding from the holding member 21. In addition, an elastic member, for example, a hook 27 that hooks one end of the tension spring 30 is formed on the lower surface of the front portion of one clamping member 21.
[0018]
The other clamping member 31 is formed in a plate shape, a semicircular clamping part 32 is formed inside the front part, a semicircular notch 33 is formed inside the substantially intermediate part, and a step recess 35 inside the rear part. Is formed. A protrusion 36 projects from a substantially intermediate portion of the semicircular cutout 33. As shown in FIG. 5, the protrusion 36 has an inclined surface 36a and a vertical surface 36b. The stepped recess 35 is formed so that the lower end half 25c of the boss 25 of one of the clamping members 21 can be fitted, and a mounting hole 35c is formed that is substantially the same center as the center of the connecting hole 25b of the boss 25. Further, a hook 37 that hooks the other end of the elastic member, for example, the tension spring 30 is formed on the lower surface of the front portion of the other clamping member 31.
[0019]
The first clamping means 20a is configured such that the lower end half 25c of the boss 25 of one clamping member 21 is fitted into the stepped recess 35 of the other clamping member 31, and the boss 25 of one clamping member 21 of the second clamping means 20b. The connecting shaft 25a is inserted into the mounting hole 35c of the step recess 35 and the connecting hole 25b of the boss 25, so that one of the holding members 21 and the other holding member 31 can be opened and closed, and the hook 27 of the one holding member 21 By hooking an elastic member such as a tension spring 30 on the hook 37 of the other clamping member 31, one clamping member 21 and the other clamping member 31 are biased in the closing direction. The connecting shaft 25a of the boss 25 of one clamping member 21 of the first clamping means 20a is rotatably attached to a bearing hole 28 formed in the bottom wall 11 of the bead container 10.
[0020]
The second clamping means 20b is configured such that the lower end half 25c of the boss 25 of one clamping member 21 is fitted into the stepped recess 35 of the other clamping member 31, and the boss 25 of one clamping member 21 of the third clamping means 20c. The connecting shaft 25a is inserted into the mounting hole 35c of the stepped recess 35 and the connecting hole 25b of the boss 25, so that one of the holding members 21 and the other holding member 31 can be opened and closed. By hooking an elastic member such as a tension spring 30 on the hook 37 of the other clamping member 31, one clamping member 21 and the other clamping member 31 are biased in the closing direction.
[0021]
The third clamping means 20c is configured such that the lower end half 25c of the boss 25 of one clamping member 21 is fitted into the stepped recess 35 of the other clamping member 31, and the boss 25 of one clamping member 21 of the fourth clamping means 20d. The connecting shaft 25a is inserted into the mounting hole 35c of the step recess 35 and the connecting hole 25b of the boss 25, so that one of the holding members 21 and the other holding member 31 can be opened and closed, and the hook 27 of the one holding member 21 By hooking an elastic member such as a tension spring 30 on the hook 37 of the other clamping member 31, one clamping member 21 and the other clamping member 31 are biased in the closing direction.
[0022]
The 4th clamping means 20d is rotatably attached by the piece member 38 by which connection pin 38a, 38b was formed up and down. That is, the fourth clamping means 20d is configured such that the lower end half 25c of the boss 25 of one clamping member 21 is fitted into the stepped recess 35 of the other clamping member 31, and the upper connecting pin 38a of the piece member 38 is connected to the stepped recess 35. Are inserted into the attachment hole 35c and the connection hole 25b of the boss 25, so that the one clamping member 21 and the other clamping member 31 can be freely opened and closed, and the hook 27 of the one clamping member 21 and the hook 37 of the other clamping member 31 are opened. By hooking an elastic member, for example, a tension spring 30, one clamping member 21 and the other clamping member 31 are biased in the closing direction. The lower connecting pin 38 b of the piece member 38 is rotatably attached to a bearing hole 39 formed in the bearing plate 9.
[0023]
The apparatus main body 2 is provided with a rotary shaft 40 so as to be rotatable. The rotating shaft 40 is rotatably attached to a center hole 41 formed in the approximate center of the substantially circular bottom wall 11 of the bead container 10 and a bearing hole 42 formed in the bearing plate 9. The rotary shaft 40 passes through the approximate center of the circular hole 43 formed by the notch 23 and the notch 33 when the clamping member 21 and the clamping member 31 are closed by the elasticity of the elastic member 30.
[0024]
A pair of abutting members that abut the projection 26 of the clamping member 21 and the projection 36 of the clamping member 31 on the rotating shaft 40 to open the clamping member 21 and the clamping member 31 against the elasticity of the elastic member 30. 45a to 45d are provided. As shown in FIG. 5, the contact members 45a to 45d have an inclined surface 46a and a vertical surface 46b. The pair of contact members 45a to 45d are provided on the rotating shaft 40 while being shifted by approximately 90 ° from the top to the bottom.
[0025]
Accordingly, the first pair of abutting members 45a and 45a and the third pair of abutting members 45c and 45c of the rotating shaft 40 are formed as protrusions of the clamping member 21 of the first clamping means 20a and the third clamping means 20c. 26 and the projection 36 of the clamping member 31, and when the clamping member 21 and the clamping member 31 are opened against the elasticity of the elastic member 30, a second pair of abutting members 45 b of the rotating shaft 40, 45b and the fourth pair of abutting members 45d, 45d do not abut the projection 26 of the clamping member 21 and the projection 36 of the clamping member 31 of the second clamping means 20b and the fourth clamping means 20d. The member 21 and the clamping member 31 are closed by the elasticity of the elastic member 30.
[0026]
Conversely, the second pair of abutting members 45b, 45b and the fourth pair of abutting members 45d, 45d of the rotating shaft 40 are the projections of the clamping member 21 of the second clamping means 20b and the fourth clamping means 20d. 26 and the projection 36 of the clamping member 31, and when the clamping member 21 and the clamping member 31 are opened against the elasticity of the elastic member 30, the first pair of abutting members 45 a of the rotating shaft 40, 45a and the third pair of abutting members 45c, 45c do not abut the projection 26 of the clamping member 21 and the projection 36 of the clamping member 31 of the first clamping means 20a and the third clamping means 20c. The member 21 and the clamping member 31 are closed by the elasticity of the elastic member 30. Thus, when the rotating shaft 40 rotates, the first and third clamping means 20a, 20c and the second and fourth clamping means 20b, 20d are opened and closed in order.
[0027]
An upper portion of the rotating shaft 40 protrudes from the center hole 41 of the bottom wall 11, and a driving means 50 and a guide member 55 are fixedly attached to the protruding portion 47 with screws 48. The driving means 50 includes a fitting shaft 51 that is fitted and attached to the protruding portion 47 of the rotating shaft 40, and an arm member 52 that is fixed to the upper end of the fitting shaft 51. The guide member 55 includes a conical cover member 56 and inclined plates 57 and 57 provided on opposite sides of the cover member 56. The driving means 50 and the guide member 55 are integrally formed with a cover member 56 fixed to the lower end of the fitting shaft 51.
[0028]
In the guide member 55, the lower end surface of the conical cover member 56 is close to the bottom wall 11 of the housing recess 13, and the inclined plates 57, 57 provided on both sides of the cover member 56 are close to the peripheral wall 12 of the housing recess 13. The beads 70 in the housing recess 13 are guided to the guide port 16 described later.
[0029]
In the apparatus main body 2, a through shaft 60 that passes through the center hole 71 of the bead 70 is provided substantially vertically. The through-shaft 60 has four concave-shaped sandwiched portions 60a to 60d formed in the axial (vertical) direction. The sandwiched portions 60a to 60d are formed in a ring shape in the circumferential direction of the through shaft 60, and are sandwiched by the sandwiching portions 22 and 32 of the sandwiching members 21 and 31 of the pair of sandwiching members 20a to 20d. . The bottom wall 11 of the bead container 10 is formed with a guide port 16 through which the beads 70 are guided to the upper end 61 of the shaft 61. The through shaft 60 has an upper end 61 extending to the center of the guide port 16 of the bead container 10 and a hook portion 63 for hooking a thread 72 at the lower end.
[0030]
Next, the operation of the bead threading device 1 according to the present invention will be described. When the arm member 52 is rotated clockwise, the rotation shaft 40 rotates clockwise via the fitting shaft 51, and the pair of contact members 45a to 45d also rotate. The first and third abutting members 45a and 45c abut against the projection 26 of the clamping member 21 and the projection 36 of the clamping member 31 of the first clamping means 20a and the third clamping means 20c, and the elasticity of the elastic member 30 On the contrary, when the clamping members 21 and 31 of the first clamping means 20a and the third clamping means 20c are pushed open and the contact members 45a and 45c are disengaged from the projections 26 and 36, the elastic member 30 Due to this elasticity, the clamping member 21 and the clamping member 31 of the first clamping means 20a and the third clamping means 20c are joined to return to the original closed state.
[0031]
When the first and third abutting members 45a and 45c push open the first clamping means 20a and the third clamping means 20c, the second clamping means 20b and the fourth clamping means 20d are closed. However, when the contact members 45a and 45c are disengaged from the protrusions 26 and 36 and the first and third clamping means 20a and 20c are closed, the second and fourth contact members 45b and 45d are The second clamping means 20b and 4b are in contact with the projections 26 of the clamping member 21 and the clamping member 31 of the second clamping means 20b and the fourth clamping means 20d and resist the elasticity of the elastic member 30. When the clamping member 21 and the clamping member 31 of the second clamping means 20d are pushed open and the contact members 45, 45d are disengaged from the projections 26 and 36, the elasticity of the elastic member 30 causes the second clamping means 20b and fourth to be The gripper Clamping member 21 and the clamping member 31 of 20d are joined back to its original closed position.
[0032]
Thus, when the arm member 52 is rotated clockwise, the first clamping means 20a and the third clamping means 20c open and close substantially simultaneously, and the second clamping means 20b and the fourth clamping means 20d open and close substantially simultaneously. However, the 1st and 3rd clamping means 20a and 20c and the 2nd and 4th clamping means 20b and 20d open and close in order. Therefore, the through shaft 60 is always held by either one of the holding means 20a and 20c or the holding means 20b and 20d, and is difficult to come off from the apparatus main body 2.
[0033]
A case where the center hole 71 of the bead 70 is passed through the thread 72 will be described. The thread 72 is hooked on the hook portion 63 of the threading shaft 60. The beads 70 are accommodated in the accommodating recesses 13 of the bead container 10. The bead 70 has flat portions 73 and 74 at the top and bottom, has a flat shape in which the side surface portion 75 is curved, the flat portions 73 and 74 are easily grounded, and the center hole 71 is easily oriented in the vertical direction. When the arm member 52 is rotated, the cover member 56 and the pair of inclined plates 57 and 57 are rotated via the fitting shaft 51, and the beads 70 are dropped from the guide port 16 formed in the bottom wall 11 of the bead container 10. Let
[0034]
The first bead 70a dropped first is guided by the guide port 16, and the through shaft 61 is passed through the center hole 71. However, as shown in FIG. 4B, the first bead 70a is placed on the first clamping means 20a. , Once falling in that position is prevented. Due to the presence of the first bead 70a placed on the first clamping means 20a, the guide port 16 is closed, and the other beads 70 do not fall from the guide port 16.
[0035]
Since the rotating shaft 40 is rotating, when the first clamping means 20a and the third clamping means 20c are opened, the second clamping means 20b and the fourth clamping means 20d are closed, and FIG. ), The first bead 70a is placed on the second clamping means 20b, and the fall is once prevented at that position. Since the bead 70 is not placed on the first clamping means 20a, the second bead 70b falls from the guide port 16, passes through the central hole 71, passes through the shaft 61, and rests on the first bead 70a. Become.
[0036]
When the first clamping means 20a and the third clamping means 20c are closed, the second clamping means 20b and the fourth clamping means 20d are opened, so that the second bead 70b is formed as shown in FIG. The first bead 70a rests on the first sandwiching means 20a, and the first bead 70a rests on the third sandwiching means 20c. Due to the presence of the second bead 70b placed on the first clamping means 20a, the guide port 16 is closed, and the other beads 70 do not fall from the guide port 16.
[0037]
When the first clamping means 20a and the third clamping means 20c are opened, the second clamping means 20b and the fourth clamping means 20d are closed, so that the second bead 70b is formed as shown in FIG. The first bead 70a rests on the second clamping means 20b, and the first bead 70a rests on the fourth clamping means 20d. Since the bead 70 is not placed on the first clamping means 20a, the third bead 70c falls from the guide port 16, passes through the central hole 71, passes through the shaft 61, and rests on the second bead 70b. Become.
[0038]
When the first clamping means 20a and the third clamping means 20c are closed, the second clamping means 20b and the fourth clamping means 20d are opened, so that the third bead 70c is formed as shown in FIG. The second bead 70b rests on the first sandwiching means 20a, and the second bead 70b rests on the third sandwiching means 20c. The fall is once prevented at that position, and the second bead 70b rests on the fourth sandwiching means 20d. The first bead 70 a falls and the thread 72 is passed through the center hole 71. In this way, the bead threading device 1 can open and close the sandwiching means 20 a to 20 d in order, drop the beads 70 one by one, and pass the thread 72 through the center hole 71 of the beads 70.
[0039]
In the above embodiment, when the arm member 52 is rotated clockwise, the rotation shaft 40 is also rotated clockwise, and the inclined surfaces 46 a of the contact members 45 a to 45 d are connected to the inclined surfaces 26 a of the protrusions 26 of the holding member 21 and the holding members 31. The clamping member 21 and the clamping member 31 are pushed open by contacting the inclined surface 36a of the projection 36. However, when the arm member 52 is rotated counterclockwise, the rotating shaft 40 also attempts to rotate counterclockwise, but the vertical surface 46b of the contact members 45a to 45d is clamped with the vertical surface 26b of the protrusion 26 of the clamping member 21. Since the arm member 52 cannot be rotated counterclockwise because it abuts on the vertical surface 36b of the protrusion 36 of the member 31, the sandwiching member 21 and the sandwiching member 31 cannot be opened.
[0040]
If the arm member 52 is forced to rotate counterclockwise, the projection 26 of the clamping member 21, the projection 36 of the clamping member 31, the rotating shaft 40, the contact members 45 a to 45 d, the arm members 52, etc. It will cause destruction. When a child, particularly an infant, uses the bead threading device 1, the arm member 52 may be rotated counterclockwise. Assuming such a case, a clutch means 80 that idles without transmitting the counterclockwise rotation of the arm member 52 to the rotating shaft 40 may be provided.
[0041]
The clutch means 80 is provided in the drive means 90 as shown in FIGS. The driving means 90 includes a fitting shaft 91 fitted and attached to the projecting portion 47 of the rotating shaft 40, and an arm member 92 that is rotatably provided on the fitting shaft 91. The cover member 56 is fixedly provided at the lower end of the fitting shaft 91, and the drive means 90 and the guide member 55 are integrally formed, as in the above embodiment.
[0042]
The fitting shaft 91 has a substantially D-shaped cross section. The arm member 92 has a boss portion 93, and a fitting recess 95 is formed in the boss portion 93. An insertion hole 96 through which the fitting shaft 91 is rotatably inserted is formed substantially at the center of the fitting recess 95. On the bottom wall 97 of the fitting recess 95, radial locking projections 99 are provided at substantially 90 ° intervals toward the approximate center.
[0043]
Further, the fitting shaft 91 is provided with a rotation member 81 that cannot rotate but is slidable in the axial direction. The rotating member 81 is formed in a cylindrical shape, and a sliding hole 82 having a substantially D-shaped cross-section is formed on the inner side of the fitting shaft 91 so as to be slidable. A spring-like elastic member 83 is formed on the outer upper side. A stepped recess 84 is formed. The rotating member 81 has a lower portion that can be fitted into the fitting recess 95, and locking recesses 85 for locking the locking projections 99 are provided at approximately 90 ° intervals on the lower end surface. ing.
[0044]
A cylindrical cover member 86 that is fixed by a screw 48 and a washer 49 is provided at the upper end of the fitting shaft 91. The cover member 86 includes a circular upper wall 86a and a peripheral wall 86b. A substantially D-shaped fitting hole 86c for fitting the fitting shaft 91 is formed in the upper wall 86a. When fixed and attached, the lower end of the peripheral wall 86b comes into contact with the boss portion 93 of the arm member 92, and the rotating member 81 is housed inside. The elastic member 83 is elastically stored by the inner surface of the upper wall 86a, and urges the rotating member 81 downward. Thus, the clutch member 80 is formed by the rotating member 81, the boss portion 93, and the elastic member 83 that biases the rotating member 81.
[0045]
When the arm member 92 is rotated clockwise, the rotating shaft 40 is rotated clockwise via the boss portion 93, the locking protrusion 99, the locking recess 85, the rotating member 81, and the fitting shaft 91. When this is rotated counterclockwise, the arm member 92 tries to rotate the rotating shaft 40 counterclockwise via the boss portion 93, the locking projection 99, the locking recess 85, the rotating member 81, and the fitting shaft 91. However, as described above, since the rotating shaft 40 cannot rotate counterclockwise, the rotating member 81 does not rotate, and the locking projection 99 of the boss portion 93 is disengaged from the locking recess 85, thereby elastically rotating the rotating member 81. It rotates idly so as to push upward against the elasticity of the member 83. Even when the rotation shaft 40 becomes unrotatable for some reason during the clockwise rotation of the arm member 92, the arm member 92 rotates idle.
[0046]
Thus, by providing the clutch means 80 in the drive means 90, when the rotation shaft 40 becomes unable to rotate, the arm member 92 is idled, the protrusion 26 of the holding member 21, the protrusion 36 of the holding member 31, It is possible to prevent the mechanical parts such as the rotating shaft 40, the contact members 45a to 45d, and the arm member 92 from being broken. Therefore, it is possible to use the arm member 92 with peace of mind by children, particularly infants, who are highly likely to rotate the arm member 92 in either direction. Of course, the configuration of the clutch means 80 is not limited to the above embodiment.
[0047]
【The invention's effect】
As described above, in the bead threading device according to claim 1, the through-shaft passing through the center hole of the bead is sandwiched by the sandwiching means having two or more paired sandwiching members, and the two or more Since the contact member that opens and closes the pair of sandwiching members in order is provided on the rotating shaft, there is no need to attach and assemble the contact members individually to each sandwiching means as in the past, the structure is simple and easy to assemble, There is an effect that the positioning of the contact member and the pair of clamping members is extremely easy.
[0048]
In addition to the above effects, the bead threading device according to claim 2 can be operated by hand because the driving means for forcibly rotating the rotation shaft is an arm member, and can be used easily even by an infant. effective.
[0049]
In addition to the above effect, the bead passing device according to claim 3 is provided with a receiving recess for receiving the bead in the device main body, and a guide port for guiding the bead to the through shaft is formed in the bottom wall of the receiving recess. Since the guide member for guiding the beads in the recess to the guide port is forcibly rotated together with the rotating shaft by the driving means, the rotating shaft and the guide member can be driven by one driving means, and the structure is simple and inexpensive. There is an effect that it can be manufactured.
[0050]
According to a fourth aspect of the present invention, the bead threading device includes a clutch unit that transmits the rotation of the driving unit to the rotating shaft between the driving unit and the rotating shaft, and when the rotating shaft is loaded, the clutch unit is idled. Therefore, when the rotary shaft becomes unable to rotate, the drive means rotates idly and the mechanism part can be prevented from being destroyed, so that it can be used safely by children, especially infants. is there.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a bead threading device according to the present invention.
FIG. 2 is an exploded perspective view of FIG.
FIG. 3 is a side sectional view of FIG. 1;
FIG. 4 is an explanatory view for explaining the movement of the bead threading device.
FIG. 5 is a plan view for explaining the movement of the holding member.
FIG. 6 is an overall exploded perspective view of the clutch means of the bead threading device according to the present invention.
7 is an assembled cross-sectional view of the clutch means of FIG. 6. FIG.
[Explanation of symbols]
1 Beading device
2 Main unit
3 Rear plate
5 Left side plate
5a Projection piece
6 Right side plate
6a Projection piece
7 Grounding plate
8 Frame
9 Bearing plate
10 Bead container
11 Bottom wall
11a Through hole
12 wall
13 Housing recess
15 screws
16 Information gate
20a Clamping means
20b Clamping means
20c Clamping means
20d clamping means
21 Clamping member
22 Nipping part
23 Notch
25 Boss
25a connecting shaft
25b Connecting hole
25c bottom half
26 Protrusions
26a Inclined surface
26b vertical surface
27 Hook
28 Bearing hole
30 Elastic member
31 Clamping member
32 clamping part
33 Notch
35 step recess
35c Mounting hole
36 protrusions
36a inclined surface
36b vertical plane
37 hook
38 pieces
38a Upper connecting pin
38b Lower connecting pin
39 Bearing hole
40 axis of rotation
41 Center hole
42 Bearing hole
43 hole
45a Contact member
45b Contact member
45c Contact member
45d contact member
46a Inclined surface
46b Vertical plane
47 Protrusion
48 screws
49 Washer
50 Drive means
51 Mating shaft
52 Arm members
55 Guide member
56 Cover member
57 Inclined plate
60 through shaft
60a Clamped part
60b Clamped part
60c sandwiched part
60d sandwiched part
61 Top
62 Bottom
63 Hook
70 beads
70a beads
70b beads
70c beads
71 Center hole
72 threads
73 Flat part
74 Flat part
80 Clutch means
81 Rotating member
82 Sliding hole
83 Elastic member
84 step recess
85 Locking recess
86 Cover member
86a Upper wall
86b wall
86c Mating hole
90 Drive means
91 Mating shaft
92 Arm member
93 Boss
95 Fitting recess
96 Insertion hole
97 Bottom wall
99 Locking protrusion

Claims (4)

A bead threading device having the following requirements.
(A) A through shaft that passes through the center hole of the beads is provided in the apparatus main body substantially vertically.
(B) The through shaft has two or more sandwiched portions formed in the vertical direction, and a hook portion for hooking a thread is provided at the lower end.
(C) The apparatus main body is provided with two or more clamping means having a pair of clamping members that open and close in the vertical direction corresponding to the sandwiched portion of the through shaft, and when the pair of clamping members are closed, the through shaft It is formed so that the to-be-clamped part may be clamped.
(D) The apparatus main body is provided with a rotation shaft that is rotatable, and the rotation shaft is provided with two or more contact members in the vertical direction for opening and closing the two or more pairs of clamping members in order. thing.
(E) The device main body is provided with a driving means for forcibly rotating the rotating shaft. 2. The bead threading device according to claim 1, wherein the driving means is an arm member. The bead passing device according to claim 1, wherein the bead passing device has the following requirements.
(A) The apparatus main body is provided with an accommodation recess for accommodating beads.
(B) A guide port for guiding the beads accommodated in the accommodating recess to the through shaft is formed in the bottom wall of the accommodating recess.
(C) A guide member that guides the beads in the storage recess to the guide port is rotatably provided in the storage recess, and the guide member is forcibly rotated together with the rotation shaft by the driving means. . A clutch means is provided between the driving means and the rotating shaft, wherein the rotation of the driving means is transmitted to the rotating shaft and the driving means is idled when a load is applied to the rotating shaft. Item 4. The bead threading device according to item 1, 2 or 3.

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