JP5734901B2 - Manufacturing method of hinge device, intermediate product of hinge device, and hinge device - Google Patents

Description

  The present invention relates to a hinge device used for, for example, an automobile hood or a retractable seat, and in particular, a method of manufacturing a hinge device in which a shaft portion protruding from a shaft member is inserted into a bearing portion of a bearing member, and the hinge device The present invention relates to an intermediate product and a hinge device.

  In general, for example, as a hinge device used for a retractable seat of an automobile, a bearing member formed on one member and the other member is provided with one member fixed to the vehicle body side and the other member fixed to the seat side. It is known to insert a rotating shaft and attach the rotating shaft by caulking or the like. However, since the number of parts is increased by providing a separate rotating shaft, the rotating shaft is aligned when the rotating shaft is assembled, and the rotating shaft is attached by caulking or the like, which makes the work complicated and expensive. There was a problem of becoming.

  In order to solve this problem, a hinge device disclosed in, for example, Japanese Patent Laid-Open No. 9-202166 (Patent Document 1) has been proposed. As shown in FIG. 17, the hinge device Ha includes a shaft member 101 having a shaft portion 100 attached by caulking or the like, and a bearing portion 102 through which the shaft portion 100 of the shaft member 101 is rotatably inserted. And a bearing member 103 formed with the. A part of the bearing portion 102 of the bearing member 103 is notched so that the shaft portion 100 of the shaft member 101 can be inserted in a direction orthogonal to the axial direction, thereby forming a notch portion 104. Further, a large diameter portion 105 for preventing the shaft portion from coming off in the axial direction is formed at the tip of the shaft portion 100. As a result, the shaft portion 100 is provided on the shaft member 101 in advance, and the shaft portion 100 of the shaft member 101 is inserted through the notch 104 of the bearing portion 102 of the bearing member 103 at the time of assembly. As a result, the assembly work is simplified.

JP-A-9-202166

However, in the above-described conventional hinge device Ha, the shaft member 101 can be assembled to the bearing member 103 with one touch. However, since the bearing member 103 has the notch portion 104, the support of the shaft portion 100 is weak accordingly. There was a problem that it was inferior in support stability.
The present invention has been made in view of the above points. The shaft portion is held by a hole-shaped bearing portion to improve the support stability of the shaft portion, and the shaft portion and the bearing at the time of assembling are provided. It is an object of the present invention to provide a method for manufacturing a hinge device, an intermediate product of the hinge device, and a hinge device that facilitate the axial alignment with the part and improve the assembly workability.

In order to achieve such an object, the manufacturing method of the hinge device according to the present invention includes a shaft member having a shaft portion protruding therefrom, and the shaft portion of the shaft member is inserted and relatively rotatably held. Comprising a bearing member formed with a hole-shaped bearing portion, and manufacturing a hinge device configured by assembling the shaft member and the bearing member by inserting the shaft portion into the bearing portion,
The shaft member and the bearing member are molded using a single mold to obtain an intermediate product of the hinge device, and the intermediate product of the hinge device is obtained by connecting the axis of the shaft portion of the shaft member and the bearing portion of the bearing member. The shaft is aligned with the shaft and the shaft is opposed to the bearing, and the shaft and the bearing are connected by a runner that forms a runner. And applying a force along the axial direction so that the shaft portion is inserted into the bearing portion, and damaging the runner by the application of the force, and simultaneously inserting the shaft portion into the bearing portion. And is assembled.

As a result, the shaft member and the bearing member are molded using a single mold, and the shaft portion is provided integrally with the shaft member, so that the production efficiency is higher than when separately manufactured. Can be improved. Moreover, since the shaft member and the bearing member are integrated, the intermediate product is easy to carry and easy to handle.
When the shaft member is assembled to the bearing member, a force along the axial direction is applied to the intermediate product of the hinge device so that the shaft portion is inserted into the bearing portion, and the runner is damaged by the application of this force. At the same time, the shaft portion is inserted into the bearing portion. In this case, since the axis of the shaft part of the shaft member and the axis of the bearing part of the bearing member are coincident, it is not necessary to align the shafts one by one. Can be made. Further, since the shaft portion is provided integrally with the shaft member, the number of parts is reduced accordingly, so that the assembly workability can be improved in this respect as well.

  For example, when an automobile hood is attached as a member to be attached using the hinge device, either the shaft member or the bearing member is attached to the vehicle body, and the hood is attached to either one. In the attached state, the shaft portion is held by the hole-shaped bearing portion, so that the shaft portion is reliably supported, and the support can be stabilized.

  If necessary, in the intermediate product of the hinge device, the runner is formed so as to be broken when the force is applied and to be detached from the shaft member and the bearing member. As a result, the runner is detached from the shaft member and the bearing member when the shaft member and the bearing member are assembled. This eliminates or reduces the labor of post-processing, and also improves the manufacturing efficiency.

  In addition, in the intermediate product of the hinge device, a configuration in which the outer peripheral edge at the tip of the shaft portion and the inner peripheral edge of the opening end of the bearing portion are connected by a thin portion that is damaged and scattered when the force is applied, as necessary. It is said. Accordingly, since the thin portion is provided, the axis of the shaft portion and the axis of the bearing portion can be reliably matched, and therefore the insertion of the shaft portion into the bearing portion can be performed reliably and easily. .

Moreover, in order to achieve said objective, the intermediate product of the hinge apparatus of this invention exists in the intermediate product of the hinge apparatus used with the manufacturing method of said hinge apparatus.
Furthermore, in order to achieve the above object, the hinge device of the present invention is a hinge device manufactured by the above-described method for manufacturing a hinge device.
As in the above, the shaft portion is held by the hole-shaped bearing portion to improve the support stability of the shaft portion, and the shaft portion and the bearing portion can be easily aligned when assembled. Thus, the assembly workability can be improved.

According to the present invention, the shaft member and the bearing member are molded using a single mold, and the shaft portion is provided integrally with the shaft member. Manufacturing efficiency can be improved. Moreover, since the shaft member and the bearing member are integrated, the intermediate product is easy to carry and easy to handle.
When the shaft member is assembled to the bearing member, a force along the axial direction is applied to the intermediate product of the hinge device so that the shaft portion is inserted into the bearing portion, and the runner is damaged at the same time as the force is applied. Insert the shaft part into the bearing part. In this case, since the axis of the shaft part of the shaft member and the axis of the bearing part of the bearing member are coincident, it is not necessary to align the shafts one by one. Can be made. Further, since the shaft portion is provided integrally with the shaft member, the number of parts is reduced accordingly, so that the assembly workability can also be improved in this respect.
Further, in the hinge device according to the present invention, in the state where the shaft portion is supported by the bearing portion, the bearing portion is formed in a hole shape so as to hold the shaft portion, so that the shaft portion is reliably supported and the support is stable. Can be achieved.

It is a perspective view which shows the hinge apparatus which concerns on embodiment of this invention. It is a disassembled perspective view which shows the hinge apparatus which concerns on embodiment of this invention. It is a front view which shows the hinge apparatus which concerns on embodiment of this invention. It is an AA line sectional view in Drawing 3 showing a hinge device concerning an embodiment of the invention. The intermediate product of the hinge apparatus which concerns on embodiment of this invention is shown, (a) is a perspective view, (b) is a perspective view which shows the state at the time of an assembly | attachment. The intermediate product of the hinge apparatus which concerns on embodiment of this invention is shown, (a) is a BB sectional drawing in Fig.5 (a), (b) is the state at the time of an assembly | attachment in FIG.5 (b). It is CC sectional view taken on the line. FIG. 7 is an enlarged cross-sectional view of a D part in FIG. 6A illustrating an intermediate product of the hinge device according to the embodiment of the present invention. It is a perspective view which shows an example to which the hinge apparatus which concerns on embodiment of this invention is applied. It is a perspective view which shows the hinge apparatus which concerns on another embodiment of this invention. It is a disassembled perspective view which shows the hinge apparatus which concerns on another embodiment of this invention. It is a front view which shows the hinge apparatus which concerns on another embodiment of this invention. It is a side view which shows the hinge apparatus which concerns on another embodiment of this invention. The intermediate product of the hinge apparatus which concerns on another embodiment of this invention is shown, (a) is a perspective view, (b) is a perspective view which shows the state at the time of an assembly | attachment. The intermediate product of the hinge apparatus which concerns on another embodiment of this invention is shown, (a) is EE sectional view taken on the line in FIG. 13 (a), (b) is the state at the time of an assembly | attachment. ) Is a cross-sectional view taken along line FF. It is sectional drawing which shows an example to which the hinge apparatus which concerns on another embodiment of this invention is applied. FIG. 5 is a cross-sectional view corresponding to FIG. 4 showing a modification of the hinge device according to the embodiment of the present invention. It is a disassembled perspective view which shows an example of the conventional hinge apparatus.

Hereinafter, a manufacturing method of a hinge device, an intermediate product of the hinge device, and a hinge device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1 to 4, the basic configuration of the hinge device H according to the embodiment of the present invention is a shaft member 1 and a bearing member 10 assembled so as to be rotatable relative to the shaft member 1. It consists of and. As will be described later, the shaft member 1 and the bearing member 10 are each made of metal or resin, and are integrally formed by casting or injection molding. In the embodiment, it is formed of a metal casting. Any kind of metal such as cast iron or aluminum can be applied.

Specifically, the shaft member 1 includes a base plate 2 to which the member to be attached Wa is attached, a shaft portion plate 4 which is erected at a right angle from one side of the base plate 2 and has a shaft portion surface 3, and a shaft of the shaft portion plate 4. The shaft portion 5 is provided so as to project integrally from the portion surface 3.
On the other hand, the bearing member 10 is erected at a right angle from one side of the base plate 12 to which the mounted member Wb is attached, and the shaft surface 3 of the shaft plate 4 is attached when the shaft member 1 is assembled. A bearing part plate 14 having a bearing part surface 13 in surface contact, and a shaft part 5 formed in the bearing part plate 14 from the bearing part surface 13 is inserted along the axis P direction so as to be rotatably supported. A hole-shaped bearing portion 15 is provided.
Further, the area of the shaft surface 3 is formed larger than the cross-sectional area of the shaft 5, and the area of the bearing surface 13 is also formed larger than the cross-sectional area of the bearing 15.

  Further, in any one of the shaft plate 4 and the bearing plate 14 (the bearing plate 14 in the embodiment), the shaft 5 is inserted into the bearing 15 and the shaft 5 is in the direction of the axis P. An engagement portion 20 is provided for preventing the movement and removal from the bearing portion 15. The engaging portion 20 is a bearing portion surface 13 of the bearing portion plate 14 and protrudes from a base end portion on the base plate 12 side, and either one of the shaft portion plate 4 and the bearing portion plate 14 (the embodiment). Then, the outer peripheral portion 21 of the shaft portion plate 4) is engaged within a required rotation range (θ in FIG. 3) relative to the bearing portion 15 of the shaft portion 5. The engaging part 20 and the shaft part plate 4 or the bearing part plate 14 (the bearing part plate 14 in the embodiment) on which the engaging part 20 is provided are integrally formed.

  The engaging portion 20 includes a lateral protrusion 22 projecting from one of the shaft plate 4 and the bearing plate 14 (the bearing plate 14 in the embodiment) toward the other (the shaft plate 4 in the embodiment). The vertical protrusion 24 protrudes from the tip of the horizontal protrusion 22 and faces the outer surface 23 of the outer peripheral portion 21 of the other (shaft plate 4 in the embodiment). Since the configuration is simple, the engaging portion 20 can be easily formed. Further, the outer peripheral portion 21a of the other one of the shaft portion plate 4 and the bearing portion plate 14 (the shaft portion plate 4 in the embodiment), and at least the outer periphery 21a in the rotation range in which the engaging portion 20 is engaged, , The corresponding shaft portion 5 or the bearing portion 15 is formed in an arc centered on the axis O.

  Further, on the outer peripheral portion 21 of the other one of the shaft portion plate 4 and the bearing portion plate 14 (the shaft portion plate 4 in the embodiment), the engagement of the engagement portion 20 is made invalid and the shaft portion 5 has its axis P A cutout portion 30 is provided that moves in the direction and can be inserted into and removed from the bearing portion 15. The notch portion 30 is formed at one side end of the shaft plate 4, and becomes an outer peripheral portion 21 with which the engaging portion 20 engages from the notch portion 30 toward the other side end. . The starting end of the arc of the outer periphery 21a on the notch 30 side constitutes the starting end of a required rotation range (θ) relative to the bearing portion 15 of the shaft portion 5.

  Furthermore, the engaging portion 20 makes contact with the outer peripheral portion 21 of the other of the shaft portion plate 4 and the bearing portion plate 14 (the shaft portion plate 4 in the embodiment), and the shaft portion 5 is relative to the bearing portion 15. A stopper 31 is provided that defines the end of rotation of the required rotation range (θ). The stopper 31 is formed on the side of the base plate 2 on the side opposite to the notch 30, and is formed with an inclined surface on which the engaging portion 20 stops.

Next, a manufacturing method of the hinge device and an intermediate product of the hinge device used in the manufacturing method will be described. As shown in FIGS. 5 to 7, the hinge device H is formed of a metal casting as described above, and the shaft member 1 and the bearing member 10 are formed by a die casting machine or sand casting using a single mold. Mold. In forming the mold, first, an intermediate product T of the hinge device H in which the shaft member 1 and the bearing member 10 are connected by a runner 40 that forms a runner is obtained.
Specifically, as shown in FIG. 5A and FIG. 6A, the intermediate product T of the hinge device H faces the shaft surface 3 of the shaft plate 4 and the bearing surface 13 of the bearing plate. The axis P of the shaft part 5 of the shaft member 1 and the axis P of the bearing part 15 of the bearing member 10 are made to coincide with each other so that the shaft part 5 faces the bearing part 15, and the engaging part 20 becomes the notch part 30. Further, the shaft member 1 and the bearing member 10 are connected by a runner 40 that forms a runner.

  The runners 40 are provided on the left and right sides of the shaft member 1 and the bearing member 10 respectively. As shown in FIGS. When a force along the direction of the axis P is applied so as to be inserted into the bearing portion 15, it is broken so as to be detached from the shaft portion 5 and the bearing portion 15. Specifically, the runner 40 is connected to the main rod 41 along the axis P direction, and is connected to the main rod 41 at right angles from both ends of the main rod 41, and is connected to the shaft member 1 and the bearing member 10, respectively. It consists of a pair of followers 42. The connecting portion between the follower rod 42 and the shaft member 1 and the connecting portion between the follower rod 42 and the bearing member 10 are thick enough to be broken and damaged when the force along the axis P direction is applied. Is formed.

  Further, in the intermediate product T of the hinge device H, as shown in FIG. 7, the outer peripheral edge at the tip of the shaft portion 5 and the inner peripheral edge at the opening end of the bearing portion 15 are damaged and scattered when the above force is applied. Are connected by a thin-walled portion 45. Since the outer diameter of the shaft portion 5 is formed to be slightly smaller than the inner diameter of the bearing portion 15, when the force along the axis P direction is applied, the thin portion 45 is broken and scattered. 5 is inserted into the bearing portion 15.

  After obtaining the intermediate product T of the hinge device H, as shown in FIGS. 5B and 6B, for example, a hammer or the like is used on the intermediate product T of the hinge device H to form the shaft portion. A force along the direction of the axis P is applied so that 5 is inserted into the bearing portion 15. By applying this force, the runner 40 is broken and detached, and at the same time, the shaft portion 5 is inserted into the bearing portion 15 and the shaft member 1 and the bearing member 10 are assembled. In this case, the thin-walled portion 45 between the outer peripheral edge at the tip of the shaft portion 5 and the inner peripheral edge of the opening end of the bearing portion 15 is broken and scattered, and the shaft portion 5 is inserted into the bearing portion 15. Since the thin portion 45 is provided, the axis line P of the shaft portion 5 and the axis line P of the bearing portion 15 can be surely matched, and therefore, the insertion of the shaft portion 5 into the bearing portion 15 is reliably and easily performed. Done.

  For this reason, since the hinge device H is assembled to the intermediate product T of the hinge device H only by applying a force along the axis P direction so that the shaft portion 5 is inserted into the bearing portion 15, The shaft portion 5 and the bearing portion 15 do not need to be aligned, and can be assembled very easily, so that the production efficiency is improved.

  Thus, the assembled hinge apparatus H is used as a hinge of the hood of a motor vehicle, for example, as shown in FIG. 3 and 4, for example, the base plate 2 of the shaft member 1 is attached to the vehicle body (attached member Wa), and the hood (attached member Wb) is attached to the base plate 12 of the bearing member 10. Install. Within the required rotation range of the engaging portion 20 (θ in FIG. 3), the hood rotation range (α in FIG. 3) is defined.

  In this case, in a state where the shaft portion 5 is supported by the bearing portion 15, the bearing portion 15 is formed in a hole shape and encloses the shaft portion 5, so that the support of the shaft portion 5 is surely increased and the support is stabilized. Can be planned. Further, in a state where the shaft portion 5 is supported by the bearing portion 15, the shaft portion surface 3 of the shaft portion plate 4 and the bearing portion surface 13 of the bearing portion plate 14 are in surface contact with each other. In addition, this can be regulated by the surface contact between the shaft portion surface 3 and the bearing portion surface 13, and also in this respect, the shaft portion 5 is reliably supported and the support can be stabilized. Particularly, since the areas of the shaft surface 3 and the bearing surface 13 are larger than the cross-sectional area of the shaft 5 and the cross-sectional area of the bearing 15, the surface contact area between the shaft surface 3 and the bearing surface 13 is small. As a result, the inclination of the shaft portion 5 can be more reliably regulated, and the support of the shaft portion 5 can be reliably secured to stabilize the support. Further, the engagement portion 20 is prevented from coming off by the engagement portion 20 within a required rotation range. However, since the outer peripheral portion 21 of the plate is engaged with the engagement portion 20, the engagement is firmly prevented. In this respect, the support of the shaft portion 5 can be stabilized.

  Further, in this case, since the engaging portion 20 is integrally formed with the bearing portion plate 14, the mounting strength of the engaging portion 20 is high, and accordingly, the engagement is firmly performed and the retaining is surely performed. However, it is possible to stabilize the support of the shaft portion 5. Furthermore, since the outer periphery 21a of the outer peripheral portion 21 of the shaft plate 4 is formed in an arc, the relationship between the engaging portion 20 and the outer peripheral portion 21 is constant no matter where the rotational position of the plate is, As a result, the engagement is secured and the retaining is surely performed, and also in this respect, the support of the shaft portion 5 can be stabilized.

  In the opening and closing of the hood (attached member Wb), the rotation range (α in the figure) of the hood (attached member Wb) is defined within the required rotation range (θ in the figure) of the engaging portion 20. However, even if this is exceeded, the engaging portion 20 stops against the stopper 31 and the end of rotation is defined, so that the stop can be ensured. Further, since the engaging portion 20 is used, the stopper mechanism can be simplified.

Next, a manufacturing method of a hinge device, an intermediate product of the hinge device, and a hinge device according to another embodiment of the present invention will be described.
As shown in FIGS. 9 to 12, the basic configuration of the hinge device H according to another embodiment of the present invention is rotatable relative to the shaft member 1 and the shaft member 1 in the same manner as described above. It is comprised from the bearing member 10 assembled | attached to, and is formed with a metal casting.

Specifically, the shaft member 1 includes a base plate 2 to which the member to be attached Wa is attached, a shaft portion plate 4 which is erected at a right angle from one side of the base plate 2 and has a shaft portion surface 3, and a shaft of the shaft portion plate 4. The shaft portion 5 is provided so as to project integrally from the portion surface 3.
On the other hand, the bearing member 10 is erected at a right angle from one side of the base plate 12 to which the mounted member Wb is attached, and the shaft surface 3 of the shaft plate 4 is attached when the shaft member 1 is assembled. A bearing part plate 14 having a bearing part surface 13 in surface contact, and a shaft part 5 formed in the bearing part plate 14 from the bearing part surface 13 is inserted along the axis P direction so as to be rotatably supported. A hole-shaped bearing portion 15 is provided.
Further, the area of the shaft surface 3 is formed larger than the cross-sectional area of the shaft 5, and the area of the bearing surface 13 is also formed larger than the cross-sectional area of the bearing 15.

  Further, the upper outer periphery of the outer peripheral portion 21 of the shaft portion plate 4 and the bearing portion plate 14 is formed in an arc centering on the shaft center O of the corresponding shaft portion 5 or the bearing portion 15. Unlike the above, the engaging part 20 is not provided. Furthermore, either one of the shaft plate 4 or the bearing plate 14 (in the embodiment, the bearing plate 14) is provided on the outer periphery of the shaft plate 4 or the bearing plate 14 (the shaft in the embodiment). The protrusion 50 which opposes the outer periphery of the part plate 4) is integrally projected. On the other hand, on the outer peripheral portion of the other one of the shaft portion plate 4 and the bearing portion plate 14 (the shaft portion plate 4 in the embodiment), the projection 50 stops and the shaft portion 5 is relative to the bearing portion 15. A stopper 51 that defines the rotation end of the required rotation range is formed. The stopper 51 is formed on the base plate 2 side on one side of the shaft portion plate 4 and is formed by an inclined surface on which the protrusion 50 stops.

Next, a manufacturing method of the hinge device and an intermediate product of the hinge device used in the manufacturing method will be described. As shown in FIGS. 13 and 14, the hinge device H is formed of a metal casting as described above, and the shaft member 1 and the bearing member 10 are formed using a single mold. In forming the mold, first, an intermediate product T of the hinge device H in which the shaft member 1 and the bearing member 10 are connected by a runner 40 that forms a runner is obtained.
As shown in FIGS. 13A and 14A, the intermediate product T of the hinge device H faces the shaft surface 3 of the shaft plate 4 and the bearing surface 13 of the bearing plate in the same manner as described above. In addition, the axis P of the shaft portion 5 of the shaft member 1 and the axis P of the bearing portion 15 of the bearing member 10 are made to coincide with each other so that the shaft portion 5 faces the bearing portion 15, and the shaft member 1 and the bearing member 10 Are connected by a runner 40 forming a runner. Similarly to the above, the runner 40 is provided on the left and right sides of the shaft member 1 and the bearing member 10, respectively, and as shown in FIGS. 13 (b) and 14 (b), the runner 40 is connected to the intermediate product T of the hinge device H. When the force along the axis P direction is applied so that the shaft portion 5 is inserted into the bearing portion 15, the shaft portion 5 is broken and separated from the shaft portion 5 and the bearing portion 15. The specific configuration of the runner 40 is the same as described above. Further, in the intermediate product T of the hinge device H, as shown in FIG. 7, the outer peripheral edge of the tip of the shaft portion 5 and the inner peripheral edge of the opening end of the bearing portion 15 They are connected by a thin-walled portion 45 that breaks and scatters when applied.

  After obtaining the intermediate product T of the hinge device H, as shown in FIG. 13B and FIG. 14B, the shaft portion is used for the intermediate product T of the hinge device H using, for example, a hammer. A force along the direction of the axis P is applied so that 5 is inserted into the bearing portion 15. By applying this force, the runner 40 is broken and detached, and at the same time, the shaft portion 5 is inserted into the bearing portion 15 and the shaft member 1 and the bearing member 10 are assembled. In this case, the thin-walled portion 45 between the outer peripheral edge at the tip of the shaft portion 5 and the inner peripheral edge of the opening end of the bearing portion 15 is broken and scattered, and the shaft portion 5 is inserted into the bearing portion 15. Since the thin portion 45 is provided, the axis line P of the shaft portion 5 and the axis line P of the bearing portion 15 can be surely matched, and therefore, the insertion of the shaft portion 5 into the bearing portion 15 is reliably and easily performed. Done.

  For this reason, since the hinge device H is assembled to the intermediate product T of the hinge device H only by applying a force along the axis P direction so that the shaft portion 5 is inserted into the bearing portion 15, The shaft portion 5 and the bearing portion 15 do not need to be aligned, and can be assembled very easily, so that the production efficiency is improved.

  Thus, the assembled hinge apparatus H is attached to the to-be-attached members Wa and Wb, for example, as shown in FIG. In this attachment, a pair of hinge devices H are used, and the base plate 2 of the shaft member 1 is attached to one attached member Wa with, for example, bolts and nuts so that the tips of the shaft portions 5 face each other. Thereafter, the other attached member Wb is bridged between the base plates 12 of the bearing member 10 and attached with, for example, bolts and nuts. In this case, unlike the hinge device H having the engaging portion 20 described above, the other hinge device H does not have the engaging portion 20, so that the shaft portion 5 tends to come off from the bearing portion 15. Since the other attached member Wb is bridged between the base plates 12, a situation where it is detached is prevented.

  When the shaft portion 5 is supported by the bearing portion 15, the bearing portion 15 is formed in a hole shape so as to hold the shaft portion 5, so that the shaft portion 5 is reliably supported and the support is stabilized. be able to. Further, in a state where the shaft portion 5 is supported by the bearing portion 15, the shaft portion surface 3 of the shaft portion plate 4 and the bearing portion surface 13 of the bearing portion plate 14 are in surface contact with each other. In addition, this can be regulated by the surface contact between the shaft portion surface 3 and the bearing portion surface 13, and also in this respect, the shaft portion 5 is reliably supported and the support can be stabilized. Particularly, since the areas of the shaft surface 3 and the bearing surface 13 are larger than the cross-sectional area of the shaft 5 and the cross-sectional area of the bearing 15, the surface contact area between the shaft surface 3 and the bearing surface 13 is small. As a result, the inclination of the shaft portion 5 can be more reliably regulated, and the support of the shaft portion 5 can be reliably secured to stabilize the support. Further, even if the other attached member Wb rotates largely, the protrusion 50 stops against the stopper 51 and defines the end of rotation, so that the stop can be ensured.

In the above-described embodiment, the engaging portion 20 is provided on the bearing portion plate 14 side. However, the present invention is not limited to this, and the engaging portion 20 is provided on the shaft portion plate 4 side to engage with the bearing portion plate 14. You may comprise so that it may change suitably. For example, as shown in FIG. 16, a structure in which the shaft portion 5 and the bearing portion 15 in FIG.
Moreover, in the said embodiment, although the shaft member 1 and the bearing member 10 were formed with the metal casting, it is not necessarily limited to this, You may shape | mold with resin with an injection molding machine, It changes suitably. It does not matter.
In the above embodiment, the example in which the hinge device H according to the present invention is used in an automobile hood has been described. However, the present invention is not limited to this example. Of course, it may be used for a lid or the like, and may be used not only for automobile parts but also for any attached member.

H Hinge device T Intermediate product Wa, Wb Mounted member 1 Shaft member 2 Base plate 3 Shaft portion surface 4 Shaft portion plate 5 Shaft portion 10 Bearing member 12 Base plate 13 Bearing portion surface 14 Bearing portion plate 15 Bearing portion P Axis axis O axis 20 Engagement part 21 Outer part 21a Outer part 22 Lateral protrusion 23 Outer side surface 24 Vertical protrusion 30 Notch part 31 Stopper 40 Runner 41 Main bar 42 Follower bar 45 Thin part 50 Projection 51 Stopper

Claims (5)

A shaft member provided with a projecting shaft portion, and a bearing member formed with a hole-shaped bearing portion through which the shaft portion of the shaft member is inserted and relatively rotatably supported. A hinge device configured by assembling the shaft member and the bearing member into the bearing portion,
The shaft member and the bearing member are molded using a single mold to obtain an intermediate product of the hinge device, and the intermediate product of the hinge device is obtained by connecting the axis of the shaft portion of the shaft member and the bearing portion of the bearing member. The shaft is aligned with the shaft and the shaft is opposed to the bearing, and the shaft and the bearing are connected by a runner that forms a runner. And applying a force along the axial direction so that the shaft portion is inserted into the bearing portion, and damaging the runner by the application of the force, and simultaneously inserting the shaft portion into the bearing portion. a method for manufacturing a hinge device that assembling the door,
In the intermediate product of the hinge device, the runner is formed so as to be broken when the force is applied and detached from the shaft member and the bearing member . Claims, characterized in the intermediate products of the hinge device, that the inner peripheral edge of the opening end of the outer peripheral edge and the bearing portion of the distal end of the shaft portion and connected by thin portions scattered damaged during application of the force A manufacturing method of the hinge device according to 1 .   A shaft member provided with a projecting shaft portion, and a bearing member formed with a hole-shaped bearing portion through which the shaft portion of the shaft member is inserted and relatively rotatably supported. A hinge device configured by assembling the shaft member and the bearing member into the bearing portion,
  The shaft member and the bearing member are molded using a single mold to obtain an intermediate product of the hinge device, and the intermediate product of the hinge device is obtained by connecting the axis of the shaft portion of the shaft member and the bearing portion of the bearing member. The shaft is aligned with the shaft and the shaft is opposed to the bearing, and the shaft and the bearing are connected by a runner that forms a runner. And applying a force along the axial direction so that the shaft portion is inserted into the bearing portion, and damaging the runner by the application of the force, and simultaneously inserting the shaft portion into the bearing portion. A manufacturing method of the hinge device
  In the intermediate product of the hinge device, the outer peripheral edge at the tip of the shaft portion and the inner peripheral edge of the opening end of the bearing portion are connected by a thin portion that is damaged and scattered when the force is applied. Manufacturing method.   The intermediate product of the hinge apparatus used with the manufacturing method of the hinge apparatus in any one of the said Claim 1 thru | or 3.   A hinge device manufactured by the method for manufacturing a hinge device according to any one of claims 1 to 3.

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