Rocking device

Abstract

To provide a swinging device capable of easily attaching a hinge device to a bearing hole of a swinging member.SOLUTION: A swinging device 10 comprises a hinge device 20, and a swinging member 22 having a bearing hole and swingably supported by the hinge device 20. The hinge device 20 has a shaft, a pair of spring support parts at least one of which is connected to the shaft, and a spring that biases the pair of spring support parts in a direction away from each other. The shaft has an insertion part located at one end part of the shaft and inserted into the bearing hole, a connection part formed closer to the other end part than the one end part and connected to the spring support part; and a bending part that bends between the insertion part and the connection part. The spring support part is provided at a position that extends in a radial direction from the bearing hole when viewed in an axial direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a rocking device that is attached to a mounting hole of a mounting member. [Background technology]

[0002] Patent Document 1 discloses a hinge device including a fixed hinge having a pair of pin insertion holes, a pivoting hinge having a pair of pin support holes, a pair of pin members inserted into the pin insertion holes and the pin support holes, and a compression spring disposed between the pair of pin members and pressing the pair of pin members against the fixed hinge. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-286039 Summary of the Invention [Problem to be solved by the invention]

[0004] In the technology described in Patent Document 1, a pair of pin members are biased in opposite directions by a compression spring and inserted into the pin insertion hole of the fixed hinge and the pin support hole of the pivotal hinge, thereby pivotally supporting the fixed hinge and the pivotal hinge so that they can rotate relative to each other. Here, the pin members are inserted into the pin insertion hole of the fixed hinge and the pin support hole of the pivotal hinge against the compression spring, and it is desirable to make this insertion operation easier.

[0005] SUMMARY OF THE INVENTION An object of the present invention is to provide a swing device that allows the hinge device to be easily attached to the bearing hole of the swing member. [Means for solving the problem]

[0006] To solve the above problems, one aspect of the present invention is a rocking device attached to a mounting member, comprising a hinge device and a rocking member having a bearing hole and supported by the hinge device for rocking on the mounting member. The hinge device has a shaft, a pair of spring support portions, at least one of which is connected to the shaft, and a spring that biases the pair of spring support portions in directions separating them from each other. The shaft has an insertion portion located at one end of the shaft and inserted into the bearing hole, a connecting portion formed closer to the other end than the one end and connected to the spring support portion, and a bending portion bent between the insertion portion and the connecting portion. The spring support portion is located at a position that protrudes radially from the bearing hole when viewed in the axial direction.

[0007] Another aspect of the present invention is a rocking device attached to a mounting member. The device includes a hinge device and a rocking member rockably supported on the mounting member by the hinge device. The hinge device has a first spring support portion and a second spring support portion arranged opposite each other, and a spring that biases the first spring support portion and the second spring support portion in directions separating them from each other. The first spring support portion has a first pillar portion extending inward in the opposing direction of the first spring support portion and the second spring support portion. The second spring support portion has a second pillar portion extending inward in the opposing direction of the first spring support portion and the second spring support portion. The first pillar portion and the second pillar portion have engagement surfaces that engage with each other around the central axis of the spring and are located inside or outside the spring. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a swing device in which the hinge device can be easily attached to the bearing hole of the swing member. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective view of the rocking device of the embodiment attached to the attachment member. [Figure 2] FIG. 2 is a perspective view of the rocking device according to the embodiment. [Figure 3] FIG. 2 is an exploded view of the rocking device according to the embodiment. [Figure 4] FIG. [Figure 5] FIG. 4 is a perspective view of a first spring support portion. [Figure 6] FIG. 6(a) is a side view of the first spring support portion, FIG. 6(b) is a top view of the first spring support portion, and FIG. 6(c) is a bottom view of the first spring support portion. [Figure 7] FIG. 2 is a cross-sectional view of the hinge device in a direction perpendicular to the axial direction. [Figure 8] FIG. [Figure 9] 10 is a perspective view of the swing member and the shaft, showing a state in which the hinge device is being assembled to the swing member. FIG. [Figure 10] FIG. 10 is a perspective view of a modified example of a rocking device. DETAILED DESCRIPTION OF THE INVENTION

[0010] 1 is a perspective view of a rocking device 10 according to an embodiment attached to a mounting member 12. The rocking device 10 is attached to the mounting member 12, which may be a transmission case, for example. The mounting member 12 has an opening 12a, which is opened and closed by the rocking device 10.

[0011] The rocker device 10 includes a hinge device 20 and a rocker member 22 that is rockably supported on the mounting member 12 by the hinge device 20. The rocker member 22 restricts the movement of fluid in one direction within the transmission and may be of a normally open type or a normally closed type.

[0012] Fig. 2 is a perspective view of the rocking device 10 of the embodiment. Fig. 2(a) is a view of the rocking device 10 seen from above, and Fig. 2(b) is a view of the rocking device 10 seen from below. Fig. 3 is an exploded view of the rocking device 10 of the embodiment.

[0013] The hinge device 20 has a pair of shafts 34, a first spring support portion 36a and a second spring support portion 36b (when not distinguished, these will be referred to as "spring support portions 36"), and a spring 38. The spring 38 is a coil spring having a constant spring diameter.

[0014] The shafts 34 are formed by bending a metal material and support the swinging member 22 so that it can swing. Furthermore, the shafts 34 are provided as a pair coaxially, allowing movement in the axial direction. By bringing the pair of shafts 34 close to each other, they can be easily assembled to the swinging member 22 and attached to the mounting member 12.

[0015] The shaft 34 has an insertion portion 40, a connecting portion 42, and a bending portion 44. The insertion portion 40 is located at one end of the shaft 34 and is inserted into the bearing hole 24. The connecting portion 42 is formed closer to the other end than the one end and is connected to the spring support portion 36. The bending portion 44 bends between the insertion portion 40 and the connecting portion 42. The insertion portion 40 and the connecting portion 42 extend in the same axial direction, and the bending portion 44 extends in a direction intersecting the insertion portion 40 and the connecting portion 42. This allows the axes of the insertion portion 40 and the connecting portion 42 to be offset.

[0016] 4 is a bottom view of the oscillating member 22. The oscillating member 22 has a bearing hole 24, an inclined portion 26, a groove portion 28, a protruding wall portion 29, a protrusion 30, and a protruding portion 32. A pair of bearing holes 24 are formed coaxially so that a pair of shafts 34 can be inserted therein. The bearing holes 24 are cylindrical holes. The direction in which the pair of bearing holes 24 face each other is referred to as the facing direction. The shafts 34 are inserted into the pair of bearing holes 24, respectively.

[0017] The grooves 28 are located on the inner side of the pair of bearing holes 24 in the opposing direction, and are formed as a pair connected to the pair of bearing holes 24. The grooves 28 have a portion extending along the bearing holes 24 and a portion extending toward the central axis of the spring 38. The grooves 28 are formed to be continuous with the bearing holes 24 and extend coaxially with the bearing holes 24. In other words, the grooves 28 form recesses that communicate with the bearing holes 24, and communicate with the bearing holes 24 so that the shaft 34 can be positioned from the grooves 28 to the bearing holes 24. The pair of grooves 28 are spaced apart in the axial direction and fit into portions of the bent portions 44 of the shaft 34 to support the bent portions 44 so that they stand upright. This causes the bent portions 44 to stand upright when the shaft 34 is assembled, making it easier to connect the connecting portion 42 to the spring support portion 36. The groove portion 28 includes a protruding wall portion 29, which is connected to the bearing hole 24, is located on the outer side of the groove portion 28 in the opposing direction, and forms a groove that is deeper than the inner part in the opposing direction.

[0018] The inclined portion 26 is inclined so as to rise from the groove portion 28 toward the bearing hole 24. The inclined portion 26 functions as a stopper that stops the outward movement of the spring support portion 36 in the opposing direction. By stopping the movement of the spring support portion 36 with the inclined portion 26, which is a tapered surface, it is possible to suppress rattle of the spring support portion 36 in the axial direction and rattle in the direction away from the swinging member 22.

[0019] As shown in Figure 3, the overhanging portion 32 is formed so as to overhang downward from the lower surface at a position away from the bearing hole 24. The overhanging portion 32 makes it easier to catch backflowing liquid. The protrusion 30 is formed so as to protrude from the upper surface as shown in Figure 3, and can enter the opening 12a of the mounting member 12. A notch 33 is formed on the outer circumferential surface located at the end of the bearing hole 24, so that the swinging member 22 does not hit the mounting member 12 when it rotates.

[0020] Fig. 5 is a perspective view of the first spring support portion 36a. Fig. 6(a) is a side view of the first spring support portion 36a, Fig. 6(b) is a top view of the first spring support portion 36a, and Fig. 6(c) is a bottom view of the first spring support portion 36a. Note that the second spring support portion 36b has the same shape as the first spring support portion 36a, so a description thereof will be omitted.

[0021] The first spring support portion 36a is connected to the shaft 34 and is biased outward in the opposing direction by the spring 38. The first spring support portion 36a has a base portion 46, a pair of first pillar portions 48a, 48b, a stopper portion 50, a recessed portion 52, a connected portion 54, and a groove portion 56.

[0022] A flat surface 46a extending along the axial direction is formed on the side surface of the base portion 46. The flat surface 46a abuts against the oscillating member 22 to stop the rotation of the spring support portion 36 around the axis. The base portion 46 has an opposing surface 46b that receives the end turn portion of the spring 38. The opposing surface 46b of the base portion 46 is located at a position where the pair of spring support portions 36 face each other. A pair of recesses 52 is formed on the opposing surface 46b of the base portion 46.

[0023] The pair of first pillar portions 48a, 48b extend inward in the opposing direction from the base portion 46, and have a greater axial length than the base portion 46. The second spring support portion 36b is formed with a pair of second pillar portions 60a, 60b extending inward in the opposing direction.

[0024] The pair of first pillar portions 48a, 48b of the first spring support portion 36a and the pair of second pillar portions 60a, 60b of the second spring support portion 36b each have an engagement surface 58 that engages with each other around the central axis of the spring 38.

[0025] FIG. 7 is a cross-sectional view of the hinge device 20 in a direction perpendicular to the axial direction. As shown in FIG. 7, the first pillar portions 48a, 48b and the second pillar portions 60a, 60b are engaged in the circumferential direction, and the first pillar portion 48a, the second pillar portion 60a, the first pillar portion 48b, and the second pillar portion 60b are arranged in this order in the circumferential direction. This limits the twisting movement of the first spring support portion 36a and the second spring support portion 36b, allowing the first spring support portion 36a and the second spring support portion 36b to move smoothly toward and away from each other in the axial direction. In other words, the pair of first pillar portions 48a, 48b and the pair of second pillar portions 60a, 60b function as guides for the first spring support portion 36a and the second spring support portion 36b when they move in the axial direction. By forming a pair of first pillar portions 48a, 48b on the first spring support portion 36a and a pair of second pillar portions 60a, 60b on the second spring support portion 36b, the first spring support portion 36a and the second spring support portion 36b can be arranged symmetrically, allowing for the use of common components. Also, by arranging the engagement surfaces 58 diagonally, the pair of first pillar portions 48a, 48b and the pair of second pillar portions 60a, 60b can support each other diagonally, preventing the axis of the spring 38 from tilting when they come close to each other.

[0026] Returning to Figure 6, stopper portions 50 are provided between the pair of first pillar portions 48a, 48b and between the pair of second pillar portions 60a, 60b to prevent the first spring support portion 36a and the second spring support portion 36b from approaching each other inward in the opposing direction. The stopper portions 50 are formed so as to connect the base portions of the pair of first pillar portions 48a, 48b. This increases the rigidity of the first pillar portions 48a, 48b and the second pillar portions 60a, 60b.

[0027] The tip ends of the first pillar portions 48a, 48b can fit into the pair of recesses 52 of the opposing second spring support portion 36b. Furthermore, the tip ends of the pair of second pillar portions 60a, 60b can fit into the pair of recesses 52 of the first spring support portion 36a. This makes it possible to increase the distance over which the first spring support portion 36a and the second spring support portion 36b can move while ensuring the guide lengths of the first pillar portions 48a, 48b and the second pillar portions 60a, 60b.

[0028] The coupled portion 54 is formed in a hole shape, and is coupled to the coupling portion 42 of the shaft 34 by inserting the coupling portion 42 into it. The coupled portion 54 is located farther from the position C1 of the bearing hole 24 than the central axis C2 of the spring 38 when viewed in the axial direction. In this way, by positioning the coupled portion 54 sufficiently far from the position of the bearing hole 24 (insertion portion 40), the length of the bending portion 44 of the shaft 34 can be increased. This makes it easier to bend the shaft 34 and reduces manufacturing errors.

[0029] 8 is a perspective view of the hinge device 20. The spring 38 biases the first spring support portion 36a and the second spring support portion 36b in opposite directions (outward in opposing directions). The opposing surfaces 46b of the first spring support portion 36a and the second spring support portion 36b abut against the end turn portion of the spring 38. The first spring support portion 36a and the second spring support portion 36b are respectively connected to the pair of shafts 34, and the bias of the spring 38 pushes the insertion portion 40 outward in opposing directions. This allows the shaft 34 to remain inserted in the bearing hole 24 of the swing member 22.

[0030] The end turn portions at both ends of the spring 38 may have a smaller diameter than the remaining central portion, which allows the end turn portions of the spring 38 to surround and support the first pillar portions 48a, 48b and the second pillar portions 60a, 60b.

[0031] The process of assembling the hinge device 20 to the swing member 22 will now be described. Figure 9 shows a state in the middle of assembling the hinge device 20 to the swing member 22. The pair of shafts 34 are inserted into the pair of bearing holes 24 of the swing member 22. At this time, the bent portions 44 of the shafts 34 are fitted into and supported by the grooves 28 shown in Figure 9, and are maintained in an upright state. Therefore, the connecting portions 42 of the pair of shafts 34 are arranged coaxially and away from the swing member 22, which makes the subsequent assembling work easier.

[0032] Next, with the spring 38 sandwiched between the first spring support portion 36a and the second spring support portion 36b, the first spring support portion 36a and the second spring support portion 36b are brought together against the spring 38. The worker grasps the first spring support portion 36a and the second spring support portion 36b with a jig or their fingers. At this time, the pair of first pillar portions 48a, 48b and the pair of second pillar portions 60a, 60b engage and function as guides, making it easier for the worker to bring the first spring support portion 36a and the second spring support portion 36b together against the spring 38. With the first spring support portion 36a and the second spring support portion 36b brought together, the worker aligns the pair of connected portions 54 with the pair of connecting portions 42, and inserts the pair of connecting portions 42 into the pair of connected portions 54, respectively. This completes the assembly of the hinge device 20. The pair of connecting portions 42 are coaxially supported by the grooves 28 with the bent portions 44 standing up, making it easy to align them with the pair of connected portions 54. Furthermore, when the first spring support portion 36a and the second spring support portion 36b restore from a close state against the spring 38, the first pillar portions 48a, 48b and the second pillar portions 60a, 60b act as guides to restore them smoothly.

[0033] Because the bent portions 44 intersect in the axial direction, the shaft 34 can receive the biasing force of the spring via the spring support portion 36. Furthermore, because the bent portions 44 fit into the groove portions 56, it is possible to prevent the shaft 34 from rotating about its axis relative to the spring support portion 36. Furthermore, because the bent portions 44 receive the rotational torque from the spring support portion 36, the rotational torque input to the hinge device 20 when the oscillating member 22 rotates can be distributed and received by the flat surface 46a of the spring support portion 36.

[0034] The process of attaching the oscillating device 10 to the mounting member 12 will now be described. The first spring support portion 36a and the second spring support portion 36b shown in Figure 2(b) are brought closer together against the spring 38, the pair of insertion portions 40 are inserted into the pair of mounting holes in the mounting member 12, and the spring 38 is restored to its original state to complete the attachment. At this time, because the bent portion 44 is housed in the groove portion 56, by gripping the outer end surfaces of the pair of spring support portions 36, the pair of shafts 34 can be brought closer together with the pair of spring support portions 36.

[0035] At this time, because the hinge device 20 is disposed away from the bearing hole 24 of the swinging member 22, it is easy to grasp and move the pair of spring support portions 36 closer together. This is because the shaft 34 has the bent portion 44, so that the spring support portions 36 are provided at positions that protrude radially from the bearing hole 24 when viewed in the axial direction, and the central axes of the bearing hole 24 and the spring 38 are misaligned, so that the end faces of the spring support portions 36 are largely exposed.

[0036] Fig. 10 is a perspective view of a modified example of a rocking device 100. Fig. 10(a) is a view of the rocking device 100 seen from above, and Fig. 10(b) is a view of the rocking device 100 seen from below. The rocking device 100 includes a hinge device 120 and a rocking member 122. The hinge device 120 includes a first shaft 134a, a second shaft 134b, a first spring support portion 136a, a second spring support portion 136b, and a spring 38.

[0037] The swing member 122 has a bearing hole 124, a wall portion 128, a circumferential groove portion 62, and a fitting groove portion 64. A pair of bearing holes 124 are provided coaxially. The wall portions 128 are provided so as to open the pair of bearing holes 124 in the radial direction, and form spaces that communicate with the bearing holes 124. The pair of wall portions 128 are formed to allow the insertion of a first shaft 134a and a second shaft 134b.

[0038] The circumferential groove 62 is formed continuous with one of the wall portions 128 and is cut out in the circumferential direction. This allows the first shaft 134a to rotate about its axis using the circumferential groove 62 as a guide. The fitting groove 64 is formed continuous with the circumferential groove 62 and is cut out in the axial direction. The fitting groove 64 fits into the first shaft 134a and restricts the rotation of the first shaft 134a about its axis. The circumferential groove 62 and the fitting groove 64 are formed continuous with one of the bearing holes 124 and are not formed in the other bearing hole 124.

[0039] The first spring support portion 136a and the second spring support portion 136b of the hinge device 120 have the same shape and are biased in opposite directions by the spring 38. The first spring support portion 136a has an insertion hole 66, a circumferential recess 68, and a groove portion .

[0040] The insertion hole 66 is formed to allow the first shaft 134a to pass therethrough. A circumferential recess 68 is formed in the outer peripheral surface of the first spring support portion 136a to surround the second shaft 134b. A groove 70 is formed radially from the insertion hole 66 to engage with the first shaft 134a.

[0041] The first shaft 134a has an insertion portion 72, a bending portion 74, and a connecting portion 76. The insertion portion 72 is inserted into one of the bearing holes 124. The bending portion 74 bends from the insertion portion 72 and the connecting portion 76 and intersects with them. When the hinge device 120 is assembled, the bending portion 74 enters the wall portion 128, moves axially, rotates through the circumferential groove 62, and moves into the fitting groove 64. The bending portion 74 is fitted into the fitting groove 64 by the bias of the spring 38. The bending portion 74 also fits into the groove 70, preventing rotation of the first spring support portion 136a. The connecting portion 76 is inserted into the insertion holes 66 of the first spring support portion 136a and the second spring support portion 136b.

[0042] The second shaft 134b has an insertion portion 78, an encircling portion 80, and a bent portion 82. The insertion portion 78 is inserted into the other bearing hole 124. The bent portion 82 bends from the insertion portion 78 and intersects with the insertion portion 78. The bent portion 82 enters the wall portion 128 when the hinge device 120 is assembled, but protrudes to the inside of the opposing direction of the bearing hole 124 and the wall portion 128 once assembly is complete. The encircling portion 80 surrounds the outer periphery of the second spring support portion 136b and fits into the circumferential recess 68. The second shaft 134b restricts axial movement of the hinge device 120, and the first shaft 134a restricts rotation of the hinge device 120 about its axis. In this way, the hinge device 120 is assembled to the swing member 122.

[0043] The present invention is not limited to the above-described embodiments, and various modifications such as design changes may be made to the embodiments based on the knowledge of those skilled in the art, and such modified embodiments may also be included within the scope of the present invention.

[0044] For example, in the embodiment, a pair of first pillar portions and a pair of second pillar portions of the spring support portion 36 are provided, but this is not limited to this, and there may be only one first pillar portion and one second pillar portion.

[0045] In addition, in the embodiment, the first and second pillar portions of the spring support portion 36 are provided inside the spring 38, but this is not limiting and they may be provided outside the spring 38. In this embodiment, the first and second pillar portions of the spring support portion 36 are each formed in a semi-cylindrical shape.

[0046] In addition, in the embodiment, the shaft 34 and the spring support portion 36 are separate bodies, but this is not limiting. For example, the spring support portion 36 and the shaft 34 may be integrally molded from resin, and the shaft 34 may extend outward in the opposing direction from the spring support portion 36. Furthermore, one of the pair of shafts 34 may be formed integrally with the spring support portion 36, and the other may be formed separately from the spring support portion 36.

[0047] Furthermore, in the embodiment, the hinge device 20 has a pair of shafts 34, but this is not limiting. For example, the hinge device 20 may have one shaft 34, and the swinging member 22 may have one shaft, with these shafts being provided coaxially. The shaft formed in the swinging member 22 is offset from the bearing hole 24 and provided coaxially with the connecting portion 42 shown in FIG. 9. The first spring support portion 36a is connected to the shaft 34, and the second spring support portion is connected to the shaft formed in the swinging member 22. This allows the first spring support portion 36a and the shaft 34 to be moved toward or away from the second spring support portion. [Explanation of symbols]

[0048] 10 Oscillating device, 12 Mounting member, 20 Hinge device, 22 Oscillating member, 24 Bearing hole, 26 Inclined portion, 28 Groove portion, 29 Projecting wall portion, 30 Projection portion, 32 Protruding portion, 34 Shaft, 36a First spring support portion, 36b Second spring support portion, 38 Spring, 40 Insertion portion, 42 Connecting portion, 44 Bent portion, 46 Base portion, 46a Flat surface, 46b Opposing surface, 48 Pillar portion, 48a, 48b First pillar portion, 50 Stopper portion, 52 Recessed portion, 54 Connected portion, 56 Groove portion, 60a, 60b Second pillar portion.

Claims

1. A rocking device attached to a mounting member, A hinge device; a swing member having a bearing hole and supported by the hinge device so as to be swingable on the mounting member, The hinge device includes: A shaft, a pair of spring support parts, at least one of which is connected to the shaft; a spring that biases the pair of spring support portions in directions that separate them from each other, The shaft an insertion portion located at one end of the shaft and inserted into the bearing hole; a connecting portion formed on the other end side of the one end portion and connected to the spring support portion; a bending portion that bends between the insertion portion and the connecting portion, The oscillating device is characterized in that the spring support portion is provided at a position that protrudes radially from the bearing hole when viewed in the axial direction.

2. the swing member has a groove formed to communicate with the bearing hole, 2. The rocking device according to claim 1, wherein a part of the bent portion is fitted into the groove portion.

3. the spring support portion has a connected portion connected to the connecting portion, 3. The oscillating device according to claim 1, wherein the connected portion is positioned farther from the bearing hole than the central axis of the spring when viewed in the axial direction.

4. 4. The rocking device according to claim 1, wherein the spring support portion has a groove portion for receiving the bent portion.

5. The pair of spring support portions includes a first spring support portion and a second spring support portion that are arranged opposite to each other, the spring biases the first spring support portion and the second spring support portion in directions separating them from each other; the first spring support portion has a first pillar portion extending inward in a direction in which the first spring support portion and the second spring support portion oppose each other, the second spring support portion has a second pillar portion extending inward in a direction in which the first spring support portion and the second spring support portion oppose each other, 3. The rocking device according to claim 1, wherein the first pillar portion and the second pillar portion have engaging surfaces that engage with each other around the central axis of the spring, and are located inside or outside the spring.

6. The first pillar portions and the second pillar portions are formed in pairs, 6. The rocking device according to claim 5, wherein the engaging surfaces are formed on the pair of first pillar portions and the pair of second pillar portions, respectively.

7. 7. The rocking device according to claim 6, wherein stopper portions are provided between the pair of first pillar portions and between the pair of second pillar portions to prevent the first spring support portions and the second spring support portions from approaching each other inward in the opposing direction.

8. a recess is formed on each of the opposing surfaces of the first spring support portion and the second spring support portion; 8. The rocking device according to claim 5, wherein the tip end of the first pillar portion and the tip end of the second pillar portion are capable of entering the opposing recesses.

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