JP2013056377A - Dummy shaft selecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the mixing-up of a dummy shaft Ds and a pinion shaft Ps.SOLUTION: A dummy shaft selecting device 1 includes: a body 4 in which a through-hole 5 having an inside diameter D1 matching with outside diameters of a pinion shaft Ps and a dummy shaft Ds is formed; and a turning member 10 which is supported so as to be turnable by a supporting shaft Y orthogonal to a penetration direction of the through-hole 5 and has an abutment part 12 and a regulation part 11, respectively, at one side and at the other side of the turning member with the supporting shaft Y interposed between both sides in the penetration direction, and the abutment part 12 and the regulation part 11 are alternately freely advanced and retracted in the through-hole 5. The turning member 10, in a reference position, protrudes the abutment part 12 into the through-hole 5 and retreats the regulation part 11 from the through-hole 5. In the turning member, a separated distance Lx between the abutment part and the regulation part in the penetration direction is set to be longer than the axial length H2 of the dummy shaft Ds and shorter than the axial length H1 of the pinion shaft Ps.

Description

  The present invention relates to a dummy shaft sorting device for sorting pinion shafts and dummy shafts of a pinion gear.

  As a pinion gear in a planetary gear mechanism, for example, there is one disclosed in Patent Document 1.

JP 2008-88993 A

FIG. 8A is a view for explaining a pinion gear in the planetary gear mechanism, and FIG. 8B is a cross-sectional view of the pinion gear assembly, schematically showing a cross section taken along plane A in FIG. FIG.
FIG. 9 is a view for explaining assembly of the pinion gear assembly in the planetary gear mechanism.

  As shown in FIG. 8B, the pinion gear assembly 101 of the planetary gear mechanism 100 includes a pinion gear 103 rotatably supported by a pinion shaft Ps via a bearing 102, and washers 104 provided at both ends of the pinion shaft Ps. , 105.

  The pinion gear assembly 101 is accommodated in an aluminum carrier body 106 (106a, 106b). In this state, both ends of the pinion shaft Ps are fixedly supported by the carrier bodies 106a, 106b, respectively. Yes.

  In the planetary gear mechanism 100, carrier bodies 106a and 106b are integrally formed, and the pinion gear assembly 101 is inserted into the inside of the carrier body 106 from the opening 107 in the circumferential direction of the carrier body 106. .

  However, since the axial length H1 of the pinion shaft Ps of the pinion gear assembly 101 is longer than the height H of the opening 107 of the carrier body 106, the pinion gear assembly 101 including the pinion shaft Ps is assembled to the carrier body 106 as it is. Even so, the pinion shaft Ps interferes with the carrier body 106 and cannot be assembled.

Therefore, conventionally, assembly is performed using a pinion gear assembly 101 ′ (see FIG. 8A) having a dummy shaft Ds that is shorter than the pinion shaft Ps and has a length substantially the same as the height H of the opening 107. It was.
Specifically, as shown in FIG. 9, (1) after assembling the pinion gear assembly 101 ′ to the carrier body 106 (see FIG. 9 (a)), (2) using the shaft member K, the dummy shaft Ds Is pushed out from the pinion gear assembly 101 ′, the dummy shaft Ds and the shaft member K are exchanged (see FIG. 9B), (3) the shaft member K is pushed out by the pinion shaft Ps, and the shaft member K and the pinion shaft are replaced. By replacing Ps, the pinion gear assembly 101 was obtained (see FIG. 9C).

Here, the dummy shaft Ds taken out from the pinion gear assembly 101 ′ is collected, for example, in a dedicated collection container for assembling a new pinion gear assembly 101.
Here, the dummy shaft Ds and the pinion shaft Ps are shaft members having the same diameter and the same external shape except that the lengths in the axial direction are different, and the dummy shaft Ds and the pinion shaft Ps are accurately identified by visual inspection. It is difficult to sort out.
In the process of exchanging the dummy axis Ds and the pinion axis Ps, the operator picks up the dummy axis Ds and the pinion axis Ps almost at the same time. The shaft Ds may be mistaken and the pinion shaft Ps may be mistakenly placed in the collection container.

  For this reason, it is required that the dummy axis Ds and the pinion axis Ps are not mistaken.

The present invention is a sorting device for sorting an assembly shaft and a dummy shaft having the same outer diameter as the assembly shaft and a shorter axial length than the assembly shaft,
A main body portion formed with a through hole having an inner diameter matching the outer diameter of the assembly shaft and the dummy shaft;
The support shaft is pivotally supported by a support shaft orthogonal to the through direction of the through hole, and the contact portion on one side and the regulating portion on the other side are alternately placed in the through hole with the support shaft sandwiched in the through direction. And a rotatable member that can be freely moved,
The rotating member is
At the reference position, the abutting portion protrudes into the through hole, and the restricting portion is retracted from the through hole,
A distance between the contact portion and the restricting portion in the penetrating direction is set to be longer than an axial length of the dummy shaft and shorter than an axial length of the assembly shaft. A sorting device was used.

According to the present invention, when the assembly shaft or the dummy shaft is inserted into the through hole and comes into contact with the contact portion of the rotating member, the assembly shaft or the dummy shaft rotates in a direction in which the contact portion is pushed out from the through hole. It moves in the through hole while rotating the moving member.
If it does so, the control part located on the opposite side to a contact part on both sides of a support shaft will move to the direction made to protrude in a through-hole.
Here, the separation distance from the contact portion to the restriction portion is set to be longer than the axial length of the dummy shaft and shorter than the axial length of the assembly shaft. For this reason, in the case of the assembly shaft, the restricting portion that attempts to protrude into the through hole comes into contact with the assembly shaft and the rotation of the rotating member is prevented, so that the movement of the assembly shaft is restricted. On the other hand, in the case of the dummy shaft, since the protrusion of the restricting portion into the through hole is not hindered by the dummy shaft, the dummy shaft continues to move in the through hole while rotating the rotating member, and passes through as it is. Will pass through the hole.
Therefore, the assembly shaft and the dummy shaft can be selected depending on whether or not they can pass through the through hole. When the assembly shaft is a pinion shaft, it is possible to suitably prevent the pinion shaft and the dummy shaft from being mistaken.

It is a figure explaining the sorting apparatus of the dummy axis | shaft concerning embodiment. It is a figure explaining the main-body part of the sorting apparatus of the dummy axis | shaft concerning embodiment. It is a figure explaining operation | movement of the sorting apparatus of the dummy axis | shaft concerning embodiment. It is a figure explaining operation | movement of the sorting apparatus of the dummy axis | shaft concerning embodiment. It is a figure explaining the sorting apparatus of the dummy axis | shaft concerning 2nd Embodiment. It is a figure explaining the sorting apparatus of the dummy axis | shaft concerning 2nd Embodiment. It is a figure explaining operation | movement of the sorting apparatus of the dummy axis | shaft concerning 2nd Embodiment. It is a figure explaining the pinion gear assembly in a planetary gear mechanism. It is a figure explaining the assembly | attachment of the pinion gear assembly in a planetary gear mechanism.

FIG. 1 is a diagram for explaining a dummy shaft sorting device 1, (a) is a front view, (b) is a right side view, and (c) is a BB in (b). It is an arrow view.
2A and 2B are views for explaining the main body 4 of the dummy shaft sorting apparatus 1. FIG. 2A is a cross-sectional view taken along the line AA in FIG. 1A, and FIG. It is sectional drawing which shows the state which removed the mounting part 45 from the part 41, (c) is an AA arrow line view in (b).

  As shown in FIG. 1, the sorting device 1 for the dummy shaft Ds of the pinion gear is used by being placed on the collection container 2 of the dummy shaft Ds. The sorting apparatus 1 includes a lid 3 that is placed on the collection container 2 and closes the upper opening of the collection container 2, and a main body 4 that is fixed to the center of the lid 3.

As shown in FIG. 2, a through hole 5 through which the pinion shaft Ps and the dummy shaft Ds are inserted is provided in the center of the columnar body portion 4 in the longitudinal (height) direction. Yes.
In the through hole 5, the restricting portion 11 and the abutting portion 12 of the rotating member 10 supported so as to be swingable by the main body portion 4 are allowed to appear alternately. A dummy shaft inserted through the through hole 5. Ds and pinion shaft Ps can be selected by this rotating member 10.

The main body 4 includes a base part 41 that supports the rotating member 10 so as to be swingable, and a placement part 45 that is placed on the base part 41. The base part 41 and the mounting part 45 are provided through.
The dummy shaft Ds of the embodiment is a shaft-like member having the same outer diameter as that of the pinion shaft Ps and shorter in the axial direction than the pinion shaft Ps. The through hole 5 in the main body 4 (the base portion 41 and the mounting portion 45) has an outer diameter of the pinion shaft Ps (dummy shaft Ds) so that the pinion shaft Ps and the dummy shaft Ds can be inserted one by one. The inner diameter D1 is substantially aligned.
The through-hole 5 in the mounting portion 45 includes a diameter-expanding portion 51 that increases in diameter as it moves away from the base portion 41 (toward the upper side in the figure), and this diameter-expanding portion 51 includes the dummy axis Ds and It functions as a guide for facilitating insertion of the pinion shaft Ps into the through hole 5.

The base portion 41 is fixed to the upper surface of the lid portion 3 by a bolt B1 that penetrates the lid portion 3. In the embodiment, the base portion 41 is fixed to the lid portion 3 by bolts B <b> 1 at a plurality of circumferential locations (for example, four locations) around the central axis X of the through hole 5.
In addition, an opening 31 through which the dummy shaft Ds that has passed through the through hole 5 of the main body portion 4 is inserted is formed at a position that aligns with the through hole 5 in the lid portion 3 with a larger inner diameter than the through hole 5. The dummy shaft Ds that has passed through the hole 5 is collected in the collection container 2.

In the main body 4, an accommodating portion 6 that accommodates the rotating member 10 is formed by cutting out the main body 4 in a slit shape (see FIGS. 1A and 2).
Specifically, the accommodating portion 6 is formed with a width W <b> 1 from the through hole 5 toward the outside in the radial direction, and communicates a part of the through hole 5 with the outside of the main body portion 4.

As shown in FIG. 2, the accommodating portion 6 is provided across the base portion 41 and the mounting portion 45 of the main body portion 4, and the accommodating portion 61 in the base portion 41 is an upper surface of the base portion 41. It is formed in a range from 41a to the vicinity of the lower surface 41b on the lid 3 side.
The accommodation portion 62 in the placement portion 45 is formed in a range from the lower surface 45a (FIG. 2B) on the base portion 41 side of the placement portion 45 to the vicinity of the enlarged diameter portion 51 of the through hole 5. Yes.
The accommodating portions 61 and 62 have the same cross-sectional shape in the direction perpendicular to the central axis X of the through hole 5, and the accommodating portion 6 in the main body portion 4 is formed with the same width W1 over the entire length in the longitudinal direction. .

A counterbore part 43 is formed at a position near the mounting part 45 in the base part 41 in a positional relationship that is symmetrical with respect to the accommodating part 61 ((a) in FIG. 1, (c) in FIG. 2). )reference).
The spot facing portion 43 has a flat surface portion 43a parallel to the inner peripheral surface 61a of the accommodating portion 61, and the washer 73 of the support member 7 is brought into contact with and supported by the flat surface portion 43a. .

  As shown in FIG. 2 (c), the support member 7 is for supporting the rotating member 10 so as to be swingable on the main body portion 4 (base portion 41). And a fitting pin 72 screwed into the tip of the support pin 71, and a washer 73 interposed between the support pin 71 and the fitting pin 72 and the fixing portion 44 of the base portion 41.

The fixing portions 44 are positioned parallel to each other on both sides of the housing portion 6 and serve as attachment portions for the support member 7.
In the embodiment, the support pin 71 is provided through the fixing portions 44 and 44 along the support axis (axis line) Y orthogonal to the central axis X of the through hole 5 through which the dummy axis Ds is inserted. The rotating member 10 is swingably supported on the outer periphery of the portion of the pin 71 located in the accommodating portion 61.

  The rotating member 10 is a plate-like member having a width W thinner than the width W1 of the accommodating portion 6. The rotating member 10 has an insertion hole 13 through which the support pin 71 is inserted, and the base portion 41 with the insertion hole 13 interposed therebetween. A restriction portion 11 on the upper surface 41a side and a contact portion 12 on the other end side are provided.

The insertion hole 13 is provided at a position near the restricting portion 11 in the rotating member 10 so as to penetrate the rotating member 10 in the thickness direction.
In the embodiment, in the state where the rotating member 10 is supported by the support member 7 (support pin 71), the contact portion 12 side protrudes into the through hole 5 and the regulating portion 11 side is retracted from the through hole 5. As shown in FIG. 2 (a), the contact portion 12 side is formed with a larger area than the restricting portion 11 side when viewed from the insertion hole 13, so that the insertion hole The center of gravity G of the rotating member 10 is positioned on the contact portion 12 side as viewed from 13.
Therefore, the contact portion 12 is positioned on the through hole 5 side when viewed from the center of gravity G at the reference position where the rotating member 10 has its center of gravity G disposed in the vertical direction when viewed from the insertion hole 13 (support shaft Y). In addition, the contact portion 12 side of the rotating member 10 is formed in a shape that bulges to the through hole 5 side so that the contact portion 12 protrudes into the through hole 5.

  In the embodiment, when the dummy shaft Ds dropped in the through hole 5 comes into contact with the contact portion 12 of the rotating member 10, the rotating member 10 is pushed by the dummy shaft Ds and rotates around the support shaft Y. For example, in the case of FIG. 2A, the rotating member 10 is rotated around the support axis Y in the clockwise direction.

  Therefore, the dummy shaft Ds can continue to fall while rotating the rotating member 10 (see FIG. 3B), and the contact portion 12 is the inner peripheral surface 5 a of the through hole 5. When it is rotated to a position that is flush with the insertion hole 13, the restricting portion 11 located on the opposite side across the insertion hole 13 projects into the through hole 5.

  Returning to the description of the base portion 41, as shown in FIG. 2C, two pin insertion holes 411 are exposed on the upper surface 41 a surface of the base portion 41 in plan view. The pin insertion hole 411 is formed with a predetermined depth h from the upper surface 41a of the base portion 41 in order to insert the positioning pin P when placing the placement portion 45 (see FIG. 2B). ). In the embodiment, the pin insertion holes 411 are provided at two locations at 90 ° intervals in the circumferential direction around the central axis X.

  Note that a pin insertion hole 451 is also provided at a position corresponding to the pin insertion hole 411 of the base portion 41 on the lower surface 45a of the placement portion 45, and the placement portion 45 is inserted into the pin insertion hole 411. The positioning pin P protruding upward from the upper surface 41 a of the base part 41 is placed on the base part 41 in such a positional relationship that it is inserted into the pin insertion hole 451.

The operation of the sorting apparatus 1 having such a configuration will be described.
FIG. 3 is a diagram for explaining the operation of the sorting device 1 when the dummy shaft Ds is inserted through the sorting device 1. FIG. 3A is a diagram showing a state in which the dummy shaft Ds is in contact with the rotating member 10. FIG. 6B is a diagram illustrating a state in which the dummy shaft Ds contacts the rotating member 10 and the rotating member 10 rotates, and FIG. 5C illustrates a state in which the dummy shaft Ds falls in the through hole 5. It is a figure which shows the state which was not controlled by the rotation member 10. FIG.
FIG. 4 is a diagram for explaining the operation of the sorting device 1 when the pinion shaft Ps is inserted through the sorting device 1. FIG. 4A shows a state in which the drop in the through hole 5 of the pinion shaft Ps is caused by the rotating member 10. (B) is a figure explaining the removal method of the pinion axis | shaft Ps in such a case, (c) is a figure which shows the difference in the length of the pinion axis | shaft Ps and the dummy axis | shaft Ds. It is a figure explaining.

As shown in FIG. 3, when the dummy shaft Ds is inserted into the through hole 5 from the enlarged diameter portion 51 of the main body portion 4, the dummy shaft Ds falls in the through hole 5 by its own weight.
Then, the dummy shaft Ds reaches a position (see (a) of FIG. 3) that contacts the contact portion 12 of the rotating member 10 protruding into the through hole 5. Since the rotating member 10 is rotatably supported by the base portion 41, the dummy shaft Ds rotates the rotating member 10 around the support axis Y in the clockwise direction in the figure (see the arrow in the figure). While rotating, the inside of the through hole 5 continues to fall downward (downward in the figure).

  When the rotating member 10 continues to rotate in the direction in which the contact portion 12 is pushed out of the through hole 5, the restricting portion 11 located on the opposite side of the contact portion 12 across the support shaft Y becomes the through hole. 5 and moves in the direction of protruding into 5, the apex P <b> 2 of the restricting portion 11 reaches a position (see FIG. 3B) that is flush with the inner peripheral surface 5 a of the through hole 5.

  In the embodiment, when the vertex P2 of the restricting portion 11 is flush with the inner peripheral surface 5a of the through hole 5, the restriction is made from the contact point P1 between the lower end of the dummy shaft Ds and the contact portion 12. The distance Lx to the apex P2 of the part 11 is set to be longer than the total axial length H2 of the dummy axis Ds.

Therefore, the dummy shaft Ds falls in the through hole 5 while rotating the rotating member 10, and finally is recovered into the recovery container 2 (see FIG. 1) through the opening 31 of the lid portion 3. Will be.
The rotating member 10 is heavier on the contact portion 12 side than the restricting portion 11 side, so that the initial stage shown in FIG. 3A after the dummy shaft Ds passes through the through hole 5. It automatically returns to the position.

On the other hand, as shown in FIG. 4, when the pinion shaft Ps is inserted into the through hole 5 from the enlarged diameter portion 51 of the main body portion 4, the pinion shaft Ps also falls in the through hole 5 by its own weight.
Then, after the pinion shaft Ps contacts the contact portion 12 of the rotating member 10 protruding into the through hole 5, the rotating member 10 is rotated around the support shaft Y in the clockwise direction in the figure. The fall continues in the through hole 5 in the downward direction in the figure.

  Then, the rotating member 10 continues to rotate in the direction in which the contact portion 12 is pushed out from the through hole 5, and the restricting portion 11 moves in a direction to protrude into the through hole 5, and the apex P <b> 2 of the restricting portion 11. However, it reaches a position (see FIG. 4A) that is flush with the inner peripheral surface 5a of the through hole 5.

  In the embodiment, when the apex P <b> 2 of the restricting portion 11 is flush with the inner peripheral surface 5 a of the through hole 5, the restriction is performed from the contact point P <b> 1 between the lower end of the pinion shaft Ps and the contact portion 12. The distance Lx to the apex P2 of the part 11 is set to be shorter than the total length H1 in the axial direction of the pinion shaft Ps.

Therefore, the apex P2 of the restricting portion 11 comes into contact with the side surface of the pinion shaft Ps, and the rotation of the rotating member 10 around the support axis Y is prevented. Then, the lower end of the pinion shaft Ps remains in contact with the contact portion 12, and the pinion shaft Ps cannot move downward while rotating the rotating member 10.
Therefore, the pinion shaft Ps is held in a state stopped in the middle of the through hole 5.

  Thereby, when the shaft member inserted in the sorting apparatus 1 of the dummy shaft is the dummy shaft Ds, it passes through the main body 4 of the sorting apparatus 1 and is collected in the collection container 2 of the dummy shaft Ds. In the case of the pinion shaft Ps, since it cannot pass through the main body 4 of the sorting device 1, it is preferably prevented from being collected in the collection container 2 of the dummy shaft Ds.

Incidentally, since the mounting part 45 is detachable from the base part 41 in the main body part 4, when the mounting part 45 is removed from the base part 41 as shown in FIG. One end of the pinion shaft Ps held in the through hole 5 of the main body portion 4 is in a state of protruding upward from the upper surface 41a of the base portion 41.
Therefore, the pinion shaft Ps held in the main body portion 4 can be collected by removing the mounting portion 45 from the base portion 41.

As described above, in this embodiment, the pinion shaft (assembly shaft) Ps and the dummy having the same outer diameter D1 as the pinion shaft Ps and the axial length H2 are shorter than the axial length H1 of the pinion shaft Ps. A sorting device 1 that sorts the shaft Ds (see FIG. 4B), and a body portion 4 in which a through hole 5 having an inner diameter D1 that matches the outer diameter of the pinion shaft Ps and the dummy shaft Ds is formed. The support shaft (center axis) Y that is orthogonal to the through direction of the through hole 5 is rotatably supported, and the contact portion 12 on one side and the regulating portion 11 on the other side are sandwiched by the support shaft Y in the through direction. , And a rotating member 10 that can alternately appear and disappear in the through hole 5,
The rotating member 10 projects the contact portion 12 into the through hole 5 and retracts the restricting portion 11 from the through hole 5 at the reference position (see FIG. 2A).
The distance between the contact portion 12 and the restriction portion 11 in the penetrating direction is set to be longer than the axial length H2 of the dummy shaft Ds and shorter than the axial length H1 of the pinion shaft Ps. A sorting device 1 was obtained.

With this configuration, when the pinion shaft Ps or the dummy shaft Ds is inserted into the through hole 5 and contacts the contact portion 12 of the rotating member 10, the pinion shaft Ps or the dummy shaft Ds causes the contact portion 12 to move. The inside of the through hole 5 is moved while rotating the rotating member 10 in the direction of pushing out from the through hole 5 (clockwise direction in FIG. 3).
Then, the restricting portion 11 located on the opposite side of the contact portion 12 with the support shaft Y interposed therebetween moves in a direction in which the restricting portion 11 protrudes into the through hole 5.
Here, the separation distance Lx from the contact portion 12 to the restricting portion 11 is set to be longer than the axial length H2 of the dummy shaft Ds and shorter than the axial length H1 of the pinion shaft Ps. Therefore, in the case of the pinion shaft Ps, the restricting portion 11 that attempts to protrude into the through hole 5 comes into contact with the pinion shaft Ps and the rotation of the rotating member 10 is prevented, so that the movement of the pinion shaft Ps is restricted. (See FIG. 4). On the other hand, in the case of the dummy shaft Ds, since the protrusion of the restricting portion 11 into the through hole 5 is not hindered by the dummy shaft Ds, the dummy shaft Ds rotates the rotating member 10 while rotating the through hole 5. The inside movement continues and passes through the through hole 5 as it is.
Therefore, the pinion shaft Ps and the dummy shaft Ds can be selected depending on whether or not they can pass through the through-hole 5, and the difference between the pinion shaft Ps and the dummy shaft Ds can be suitably prevented.

The main body 4 includes a base part 41 that rotatably supports the rotating member 10 and a mounting part 45 that is mounted on the base part 41 and is detachable from the base part 41. And the through hole 5 is provided through the base portion 41 and the mounting portion 45,
The restriction portion 11 is configured to be located closer to the placement portion 45 than the upper surface 41a of the base portion 41 on the placement portion 45 side.

  If comprised in this way, when the mounting part 45 is removed from the base part 41 when the movement of the pinion shaft Ps is regulated by the rotating member 10 in the through hole 5, the movement is regulated by the regulating part 11. The pinion shaft Ps in the state is exposed on the upper surface 41 a of the base portion 41. Therefore, the pinion shaft Ps whose movement is restricted by the restriction part 11 can be easily removed from the main body part 4 (base part 41).

  The main body 4 includes a lid 3 that is placed on the collection container 2 of the dummy shaft Ds and closes the upper end opening of the collection container 2. The lid 3 has an opening 31 at a position aligned with the through hole 5. It was set as the structure formed.

  If comprised in this way, the dummy axis | shaft Ds which penetrated the through-hole 5 of the main-body part 4 will be collect | recovered in the collection container 2 efficiently.

  In particular, the through hole 5 has an inclination that allows the pinion shaft Ps and the dummy shaft Ds to move within the through hole 5 due to its own weight (in the case of FIG. 2, an inclination perpendicular to the mounting surface of the main body portion 4). Therefore, in order to move the pinion shaft Ps and the dummy shaft Ds inserted into the through hole 5, it is necessary for the operator to continue to apply a biasing force to the pinion shaft Ps and the dummy shaft Ds. There is no need to prepare a separate device (mechanism). Therefore, the pinion shaft Ps and the dummy shaft Ds can be selected with a simple configuration.

Further, in the main body portion 4, the housing portion 6 that houses the rotating member 10 is formed by cutting out the main body portion 4 in a slit shape along the penetration direction of the through hole 5. 5 is formed with a width W1 that is closer to the width W of the rotating member 10 from the outer side in the radial direction, and is provided across the base portion 41 and the mounting portion 45 of the main body portion 4 so that the through hole 5 A part is communicated with the outside of the main body 4.
Thus, when the rotating member 10 is replaced with another rotating member having a different shape, the rotating member to be replaced does not interfere with the main body portion 4, so that the shape of the rotating member 10 is changed to the pinion. The shape can be changed to an optimum shape according to the weight of the axis Ps or the dummy axis Ds.

Furthermore, the shape of the rotating member 10 is set so that the contact portion 12 side of the rotating member 10 protrudes outward from the outer peripheral surface of the main body portion 4, and the protruding portion is pushed into the main body portion 4. When pressed in the direction, the rotating member 10 is configured to rotate in a direction in which the contact portion 12 protrudes into the through hole 5.
As a result, when the main body 4 and the pinion shaft Ps are composed of members having a small sliding resistance, when the movement of the pinion shaft Ps is restricted by the rotating member 10 in the through hole 5. When the protruding portion is pressed in the direction of pushing into the main body 4, the pinion shaft Ps is pushed upward in the through hole 5, and its base end portion is exposed in the enlarged diameter portion 51. In this state, the pinion The pinion shaft Ps can be removed from the main body 4 by picking up the shaft Ps and lifting it.

Further, in the rotating member 10, an insertion hole 13 for rotatably supporting the rotating member 10 by the support member 7 is formed at a position closer to the regulating portion 11 than the contact portion 12. 10 is located on the contact portion 12 side when viewed from the insertion hole 13 (support shaft Y), and the contact member 12 is viewed from the insertion hole 13 (support shaft Y) of the rotating member 10. The rotating member 10 bulges toward the through hole 5 when viewed from the center of gravity G at the reference position where the center of gravity G is disposed in the vertical direction when viewed from the insertion hole 13 (support shaft Y), and the contact portion It was set as the structure formed in the area wider than the control part 11 side so that 12 may protrude in the through-hole 5. FIG.
As a result, the rotating member 10 returns to the reference position by its own weight, and the contact portion 12 protrudes into the through hole 5, so that the rotating member 10 does not require an urging force of an urging member such as a spring. Can be returned to the reference position. Therefore, an increase in manufacturing cost due to an increase in the number of parts can be suitably prevented.

  In the sorting device 1 described above, the center of gravity of the rotating member 10 is configured to be located on the contact portion 12 side, and the rotating member 10 is returned to the reference position by its own weight. It is good also as a structure which returns to the initial position shown to (a) of FIG. 3 using the urging | biasing force of a urging agent.

  If comprised in this way, since the shape of the rotation member 10 can be made small, the weight reduction and size reduction of the sorting device 1 will be attained.

5A and 5B are diagrams for explaining a dummy shaft Ds sorting apparatus 1A according to the second embodiment, wherein FIG. 5A is a perspective view, and FIG. 5B is an enlarged view taken along a plane A in FIG. It is sectional drawing.
6A is a cross-sectional view taken along line BB in FIG. 5B, FIG. 6B is a cross-sectional view taken along line CC in FIG. 5B, and FIG. It is an enlarged view of the area | region d in (b).
FIG. 7 is a diagram for explaining the operation of the sorting apparatus 1A.
5 and 6, the illustration of the spring 18 described later is omitted except for FIG.

  In the sorting device 1 described above, the case of the sorting device 1 in which the pinion shaft Ps and the dummy shaft Ds fall in the main body portion 4 in the axial direction (longitudinal direction) is exemplified. The sorting apparatus 1A according to the second embodiment is configured such that the pinion shaft Ps and the dummy shaft Ds fall in the radial direction.

  As shown in FIG. 5, the sorting apparatus 1 </ b> A for the dummy shaft Ds according to the second embodiment includes a lid 3 that is placed on the collection container 2 and closes the upper opening of the collection container 2, and the center of the lid 3. The main body 4A is fixed to the main body 4A.

  The main body portion 4A has a rectangular shape in a top view, a rectangular base portion 41A fixed to the lid portion 3, and a guide that is integrally attached to the upper surface of the base portion 41A and increases in opening area as the distance from the base portion 41A increases. 45A.

  The base 41A is a rectangular through hole 5A having an inner diameter that matches the radial width D1 (see FIG. 6B) and the axial length H1 (see FIG. 5B) of the pinion shaft Ps. It is a cylindrical member which has.

The lower end of the base portion 41A is integrated with the lid portion 3, and a rotating member 10A is provided at an intermediate position in the base portion 41A.
One rotating member 10A is provided at each of one end and the other end (the left end and the right end in FIG. 5B) in the longitudinal direction of the through hole 5A, and the rotating member 10A is in the through direction of the through hole 5A. And is supported so as to be rotatable around an axis Y perpendicular to the width direction.

The rotating members 10A and 10A are held at a reference position shown in FIG. 5B by a spring 18 (see FIG. 6C).
As shown in FIG. 6, the base 41 </ b> A is provided with a pair of protrusions 17 that protrude radially inward (in the through-hole 5 </ b> A), and the rotating member 10 </ b> A is supported at both ends by the pair of protrusions 17. The support shaft 19 is rotatably supported.

  10 A of rotation members are the direction orthogonal to the penetration direction of the penetration port 5A from the support part 14, and the control part 15 extended in the penetration direction of the penetration hole 5A from the support part 14 by the support shaft 19 in the reference position. And an abutting portion 16 projecting inside the through-hole 5A.

  In the embodiment, the separation distance L1 (see FIG. 5B) of the restriction portions 15 and 15 located at both ends in the longitudinal direction of the through-hole 5A is longer than the axial length H2 of the dummy shaft Ds, and The axial length H1 of the pinion shaft Ps is set shorter, and the separation distance L2 (see FIG. 7A) of the contact portions 16 and 16 is set shorter than the axial length H2 of the dummy shaft Ds. ing.

  Thereby, when the pinion shaft Ps is dropped into the through-hole 5A, the restricting portions 15 and 15 come into contact with both ends in the longitudinal direction of the pinion shaft Ps. In this state, the rotation member 10A is prevented from rotating about the central axis Y by the pinion shaft Ps that is in contact with the upper end of the restricting portion 15. Therefore, the pinion shaft Ps is rotated by the rotation member 10A in the through hole 5A. It is in a state where it cannot move downward. Therefore, the pinion shaft Ps is prevented from falling into the collection container 2 located below the main body portion 4A (base portion 41A).

On the other hand, when the dummy shaft Ds is dropped into the through-hole 5A, the contact portions 16 and 16 come into contact with both ends of the dummy shaft Ds in the longitudinal direction.
Here, the biasing force of the spring 18 (see FIG. 6C) for returning the rotating member 10A to the reference position is set to be weaker than the force required to support the mass of the dummy shaft Ds by the rotating member 10A. Has been. The axial length H2 of the dummy shaft Ds is set to a length that does not hinder the rotation of the rotating member 10A.

  Therefore, when both ends of the dummy shaft Ds come into contact with the contact portions 16 and 16, the dummy shaft Ds moves downward in the figure while rotating the rotating member 10A around the support shaft Y. As a result, the dummy shaft Ds passes through the through-hole 5A and is collected in the collection container 2 positioned below.

As described above, in the second embodiment, the pinion shaft Ps, the dummy shaft Ds having the same outer diameter D1 as the pinion shaft Ps, and the axial length H2 shorter than the axial length H1 of the pinion shaft Ps, A sorting device 1 for sorting
A cylindrical main body 4A having a width D1 that matches the radial width of the pinion shaft Ps and the dummy shaft Ds, and a rectangular through-hole 5A having a length that matches the axial length H1 of the pinion shaft Ps;
In the main body 4A, a rotating member 10A is rotatably supported by a support shaft Y orthogonal to the penetrating direction of the through hole 5A and the longitudinal direction, and disposed at both ends of the through hole 5A in the longitudinal direction. Prepared,
The rotating member 10A has a spring 18 for disposing the rotating member 10A at a reference position (see FIG. 5B), and an upper side in the penetrating direction of the through hole 5A from the support portion 14 by the support shaft 19 at the reference position. And a contact portion 16 that protrudes inward of the through-hole 5A in a direction orthogonal to the through-hole 5A through the support portion 14 at the reference position.
The distance L1 between the restricting portions 15 located at both ends in the longitudinal direction of the through hole 5A is set to be longer than the axial length H2 of the dummy shaft Ds and shorter than the axial length H1 of the pinion shaft Ps. The separation apparatus 1A for the dummy shaft Ds having a configuration in which the separation distance L2 between the contact portions 16 located at both ends in the longitudinal direction of the mouth 5A is set to be shorter than the axial length H2 of the dummy shaft Ds.

If comprised in this way, the separation distance of the control parts 15 and 15 located in the both ends of the longitudinal direction of 5 A of through-holes is longer than the axial direction length H2 of the dummy axis | shaft Ds, and from the axial direction length H1 of the pinion axis | shaft Ps. Therefore, when the pinion shaft Ps is dropped into the through-hole 5A, the restriction portions 15 and 15 come into contact with both ends in the longitudinal direction of the pinion shaft Ps, and the central axis of the rotating member 10A Since the rotation around Y is prevented, the pinion shaft Ps is prevented from falling into the collection container 2 located below the main body 4A (base 41A).
On the other hand, when the dummy shaft Ds is dropped into the through-hole 5A, the contact portions 16 and 16 are in contact with both ends of the dummy shaft Ds in the longitudinal direction, and the rotating member 10A is rotated around the support shaft Y. Accordingly, the dummy shaft Ds passes through the through-hole 5A and is collected in the collection container 2 positioned below the main body 4A (base 41A).
The pinion shaft Ps and the dummy shaft Ds can be selected depending on whether or not they can pass through the through-hole 5A, and it is possible to suitably prevent the pinion shaft Ps and the dummy shaft Ds from being mixed.

DESCRIPTION OF SYMBOLS 1, 1A Sorting device 2 Collection container 3 Cover part 4, 4A Main body part 5 Through hole 5A Through port 6 Storage part 7 Support member 10, 10A Rotating member 11 Restriction part 12 Contact part 13 Insertion hole 14 Support part 15 Restriction part 16 Contact part 17 Projection part 18 Spring 19 Support shaft 31 Opening 41 Base part 41A Base part 43 Counterbore part 44 Fixing part 45 Mounting part 45A Guide part 51 Large diameter part 61 Accommodation part 62 Accommodation part 71 Support pin 72 Fitting Pin 73 Washer B1 Bolt Ds Dummy shaft Lx Distance P Pin P1 Current contact P2 Vertex Ps Pinion shaft (assembled shaft)
W Width W1 Width X Center axis Y Support shaft

Claims (6)

A sorting device for sorting an assembly shaft and a dummy shaft having the same outer diameter as the assembly shaft and a shorter axial length than the assembly shaft,
A main body portion formed with a through hole having an inner diameter matching the outer diameter of the assembly shaft and the dummy shaft;
The support shaft is pivotally supported by a support shaft orthogonal to the through direction of the through hole, and the contact portion on one side and the regulating portion on the other side are alternately placed in the through hole with the support shaft sandwiched in the through direction. And a rotatable member that can be freely moved,
The rotating member is
At the reference position, the abutting portion protrudes into the through hole, and the restricting portion is retracted from the through hole,
A distance between the contact portion and the restricting portion in the penetrating direction is set to be longer than an axial length of the dummy shaft and shorter than an axial length of the assembly shaft. Sorting device. The main body is
A base portion that rotatably supports the rotating member;
A mounting portion mounted on the base portion and detachable from the base portion,
The through hole is provided through the base portion and the mounting portion.
The dummy shaft sorting apparatus according to claim 1, wherein the restricting portion is located closer to the placement portion than an upper surface of the base portion on the placement portion side.   The said main-body part is provided with the cover part which plugs up the upper end opening of the collection container of the said dummy axis | shaft, The opening is formed in the said cover part in the position aligned with the said through hole. The dummy shaft sorting apparatus according to claim 1 or 2. The center of gravity of the rotating member is located on the contact portion side as viewed from the support shaft,
4. The dummy shaft according to claim 1, wherein the contact portion is formed to bulge toward the through hole when viewed from the center of gravity at the reference position. 5. Sorting device.   4. The selection of the dummy shaft according to claim 1, wherein an urging member that returns the rotating member to the reference position is attached to the rotating member. 5. apparatus. A sorting device that sorts an assembly shaft and a dummy shaft having the same outer diameter as the assembly shaft and an axial length shorter than the assembly shaft,
A cylindrical main body having a width matching the radial width of the assembly shaft and the dummy shaft, and a rectangular through-hole having a length matching the axial length of the assembly shaft;
In the main body portion, the support member is rotatably supported by a support shaft orthogonal to the penetrating direction and the longitudinal direction of the through-hole, and includes rotating members respectively disposed at both ends in the longitudinal direction of the through-hole.
The rotating member is
An urging member for disposing the rotating member at the reference position;
In the reference position, a restricting portion extending upward from the support portion by the support shaft in the penetrating direction of the through hole,
A contact portion that protrudes from the support portion to the inside of the through-hole in a direction orthogonal to the penetration direction at the reference position;
The distance between the restriction portions located at both ends in the longitudinal direction of the through-hole is set longer than the axial length of the dummy shaft and shorter than the axial length of the assembly shaft,
A dummy shaft sorting apparatus, wherein a separation distance between contact portions located at both ends in the longitudinal direction of the through-hole is set to be shorter than an axial length of the dummy shaft.

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