JP2011207393A - Hinge structure of storage box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To overcome a problem that, in a hinge structure which pivotally and rotationally supports a lid and a glove box, a metallic hinge pin is used or a method such as of having integrally-formed shaft and bearing fitted with each other at a specific angle is employed, while, in either case, components are individually acquired, and the angle at which the lid and box are mounted is restricted.SOLUTION: A hinge 3 is adapted to have its shaft 31 and a bearing 32 on the box 1 side and lid 2 side respectively, while the shaft 31 is provided so as to have a gap S between its segmenting edges on a route between both side supporting walls 4, 5. The bearing 32 has a passing side peripheral wall 32b that is allowed to pass through the gap S in the direction in which the lid 2 is mounted so as to have a bearing hole 32a fitted to the shaft 31 from the direction perpendicular to the shaft, and a counter-passing-side peripheral wall 32c whose width is wider than the width of the passing side peripheral wall, so that the passing side peripheral wall 32b of the bearing 32 can pass the gap S while pushing and opening it, either along the respective segmenting edge faces of the shaft 31 or along one of the two side surfaces of the passing side peripheral wall 32b of the bearing 32. In the direction of the hinge being disengaged, the passing side peripheral wall 32 has guide surfaces 33 formed either into tapered surfaces or curved surfaces for the passing side peripheral wall to be locked with the shaft 31 at the locking piece T.

Description

  The present invention relates to a hinge structure of a storage box provided on an instrument panel or the like of an automobile, and more specifically, a storage box having a hinge shaft on one side and a hinge bearing on the other side of the box side and the lid side. The present invention relates to a hinge structure.

  Conventionally, as shown in FIG. 5, a hinge structure is known in which a hinge cover a and a lid inner b that are screwed to a box are connected by a metal hinge pin c. The hinge pin c has a pipe structure having an axially separated portion d at one circumferential direction of the peripheral wall. The lid inner b is fitted into the connecting portion of the hinge cover a, and the hinge pin c is press-fitted into the connecting portion g of the lid inner b and the connecting hole f of the hinge cover a, so that the lid inner b can be rotated without rattling. It is fixed by fitting. In addition, the lid inner b is internally fitted by fitting the lid outer h from the front side.

  Further, Patent Document 1 allows the glove box to be attached and detached by fitting the holding portion corresponding to the bearing provided on the box side of the glove box and the support shaft provided on the instrument panel side in a direction perpendicular to the axis. Discloses a hinge structure to be assembled to. For the fitting from the direction perpendicular to the axis, the holding part is provided with an inlet part that opens a part in the circumferential direction with a width less than the diameter, and the cross-section of the support shaft is narrow enough to be taken in and out of the inlet part. And an oval cross-sectional shape having a wide portion that cannot be taken in and out of the inlet portion.

  As a result, if the glove box is inserted in a state where the inlet part of the glove box is opposed to the narrow part of the supporting shaft on the instrument panel side and then the glove box is rotated in the closing direction, the wide part does not face the inlet part. Can be assembled in the direction. However, it can be removed by returning the box to the position when the shaft is inserted.

  Patent Document 2 discloses a hinge that is assembled so that a lid can be attached and detached by fitting a cylindrical pin installed on the instrument panel side and a bearing formed integrally with the lid side of the glove box from the direction perpendicular to the axis. The structure is disclosed. For fitting from the direction perpendicular to the axis, the bearing has the same width as the diameter of the cylindrical pin and is open to one side. When the lid is in a predetermined direction outside the opening / closing area, the bearing can be fitted to the pin through the fitting opening, and when the lid is turned to the opening / closing area in this fitting state, the pin is removed from the fitting opening. The lid cannot be removed and the lid can be assembled. However, it can be removed by returning the lid to the position at the time of fitting.

  Further, Patent Document 3 below includes a glove box, a hinge pin attached to a lower opening frame located on the back side of the instrument panel at the lower edge of the opening via a support piece, and a hinge pin formed on the lower edge of the glove box. A hinge bracket having a hook portion to be engaged, and a claw member having a so-called return shape or the like that allows the hinge pin to move from the clearance opening of the hook portion to the deepest portion and prevents separation from the deepest portion. In order to allow the hinge pin to move to the deepest part, at least one of the hook part and the claw member is formed to have elasticity.

JP 2000-95029 A JP 2004-149061 A JP 2004-262334 A

  However, using a metal hinge pin as in the conventional example shown in FIG. 5 alone increases the cost. Moreover, the work of press-fitting a metal hinge pin is not easy, and the cost increases in terms of work efficiency. Furthermore, an increase in metal parts results in a decrease in recyclability.

  The hinge structures disclosed in Patent Documents 1 and 2 do not use a metal hinge pin, but only fit a shaft and a bearing that are integrally formed on the glove box and the lid, so that the cost can be reduced. However, since the angle of the box and lid to which the shaft and the bearing can be attached and detached is specified, the angle of the box and lid at the time of assembly is limited. In addition, after assembly, a stopper and a stopper mechanism for preventing the box and lid from being rotated to an angle at which they can be accidentally attached and detached are required, which makes the structure complicated and expensive.

  The hinge structure disclosed in Patent Document 3 increases the overload to the shaft detachment side by a return provided in the hook portion, and prevents the shaft from being inadvertently detached from the deepest portion of the hook portion. When the assembly load is lowered to improve the assemblability, there is a problem that the detachment load decreases.

  In view of the above problems, the present invention has a simple and inexpensive structure in which a hinge shaft is provided on one of the box side and the lid side and a hinge bearing is provided on the other side. It is an object of the present invention to provide a hinge structure of a storage box that is fitted and assembled and has no angle or position for releasing the fitting.

The hinge structure of the storage box of the present invention is
In the hinge structure of the storage box with the hinge side on one side and the hinge bearing on the other side of the box side and the lid side,
The shaft is provided so as to divide the middle between the supporting walls on both sides to form a gap between the divided ends,
The bearing has a passage-side circumferential wall for allowing the bearing hole to be fitted to the shaft from a direction perpendicular to the axis by passing the gap in the assembly direction of the lid, and a non-passing-side circumferential wall wider than the passage-side circumferential wall,
On at least one of each divided end surface of the shaft and both side surfaces of the passing side peripheral wall of the bearing,
Passing side peripheral wall can pass while expanding the gap between shaft split ends,
A tapered guide surface or a curved guide surface is formed on the assembling direction side so as to be locked by a shaft with a locking margin on the disengagement direction side.

  When the lid is attached to the storage box having the hinge structure of the present invention, the passage-side peripheral wall of the bearing having the above-described configuration is passed through the gap between the divided ends of the shaft so as to be slid in the assembling direction of the lid. Then, the non-passing-side peripheral wall having a width wider than that of the passing-side peripheral wall is received by the shaft, and the shaft and the bearing hole are fitted together so that the cover can be opened and closed. At this time, the tapered surface or curved surface formed on at least one of the divided end surfaces of the shaft and both side surfaces of the bearing-side peripheral wall serves as a guide for the guide surface that tapers in the direction in which the lid is assembled. Can be inserted between the split ends of the shaft.

  At the same time, in the fitted state of the shaft and the bearing hole, the passage-side peripheral wall is locked with a predetermined locking allowance with the shaft on the disengagement side with respect to the shaft. If the force only acts, the passage-side peripheral wall will not enter the gap between the shaft split ends, and will not spread out.

  According to the hinge structure of the storage box of the present invention, a narrow passing side in which a shaft provided by dividing the middle between both side walls and a gap between the divided ends is fitted to fit the shaft into the shaft. With a simple and inexpensive combination with a bearing having a peripheral wall, the passing side peripheral wall of the bearing is slid into the gap between the split ends of the shaft with mutual guidance by the guide surface, while expanding the gap. By simply passing the lid in the assembling direction, it is not necessary to place the lid in a special hinge fitting position, and the shaft and the bearing hole can be fitted together so that the lid can be quickly assembled and opened without trouble.

  At the same time, in the fitted state of the shaft and the bearing hole, the passage-side peripheral wall is locked to the shaft with a predetermined locking allowance on the disengagement side, so carelessly without a special locking stopper or mechanism It is possible to reliably prevent the attached lid from coming off. In addition, the locking does not come off only by the force in the disengagement direction acting on the assembled lid due to the catching amount of the locking allowance, but the gap between the split shaft ends can be expanded with a tool etc. until the locking allowance is eliminated. Since it can be unlocked and removed, maintenance is not inconvenient.

The concrete example of the hinge structure of the storage box concerning an embodiment of the invention is shown, (a) is a sectional view showing the state where the lid was assembled to the storage box by the hinge, (b) is the fitting of the shaft and the bearing FIG. 3C is a cross-sectional plan view showing the idle state, FIG. 3C is a cross-sectional plan view of the bearing alone, and FIG. 4D is a perspective view showing the relationship between the shaft and the bearing. It is the cross-sectional top view which looked at the hinge part of the hinge structure from the upper direction. It is the cross-sectional top view which looked at the hinge part of the hinge structure with the vine spring attachment part. It is a perspective view which decomposes | disassembles and shows the hinge structure which has the hinge structure with the axis | shaft of a hinge, the lid inner which has a bearing of a hinge, and the lid outer which coat | covers a lid inner from the front side. It is a perspective view which decomposes | disassembles the conventional hinge structure into the cover outer which covers the hinge cover which has the axis | shaft of a hinge, the cover inner which has a bearing of a hinge, and a cover inner from the front side.

  One specific example of the hinge structure of the storage box according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4 for the understanding of the present invention. Accordingly, the following description is a specific example of the present invention and does not limit the description of the claims.

  As shown in FIG. 1A, the hinge structure of the storage box according to the present embodiment includes a shaft 31 of the hinge 3 on one side of the box 1 side and the lid 2 side, and a bearing 32 of the hinge 3 on the other side. have. Specifically, the shaft 31 is provided on the box 1 side, and the bearing 32 is provided on the lid 2 side. However, the basic operation and effect are not changed even if it is reversed.

  FIG. 1B is a cross-sectional plan view showing a state where the shaft and the bearing are fitted, and FIG. 1C is a cross-sectional plan view of the shaft alone. The shaft 31 has a cylindrical shape formed between both side support walls 4 and 5 formed in the box 1, and a slit having a width equal to or smaller than the diameter is formed between the support walls 4 and 5 on the side where the bearing 32 is inserted. It is formed across. Further, the cylindrical shaft is divided between both side support walls 4 and 5, and a gap S is formed between the divided ends. Further, the gap S has a tapered shape whose width is narrowed from the side through which the bearing 32 is inserted to the side penetrating. In other words, the shaft 31 has a hook shape.

  On the other hand, the bearing 32 is provided on the lid 2 side, and has a passage-side peripheral wall 32b that passes through the gap S and an anti-passage-side peripheral wall 32c that does not pass through the gap S. The passage-side peripheral wall 32b and the counter-passage-side peripheral wall 32c are in charge of half of the cylindrical side surfaces, and a bearing hole 32a that is a through hole that receives the shaft 31 is formed by each peripheral wall. The passage-side peripheral wall 32b is formed in the direction in which the lid 2 is inserted into the box 1. The counter-passage-side peripheral wall 32c is opposite to the passage-side peripheral wall 32b, and the passage-side peripheral wall 32b is viewed from the front. It is formed so that it may be located on both sides. That is, the non-passing side peripheral wall 32c is wider than the passing side peripheral wall 32b. Further, the non-passing side peripheral wall 32c has a flange portion 32e at the upper part thereof toward the passing side peripheral wall 32b.

  The front end width B1 of the passage-side peripheral wall 32b is narrower than the width S of the gap of the shaft 31, and becomes wider toward the inner wall of the bearing hole 32a. When the bearing 32 is fitted to the shaft 31, the passage-side peripheral wall 32b protrudes from the gap on the opposite side of the shaft 31 where the bearing 32 is inserted. Here, the inner wall surface of the passage-side peripheral wall 32b is wider than the gap of the shaft 31, and a predetermined locking allowance T is secured.

  The passage-side peripheral wall 32b can pass through at least one of the divided end surfaces of the shaft 31 and both side surfaces of the passage-side peripheral wall 32b of the bearing 32 while expanding the gap S between the divided ends of the shaft 31, A taper surface tapering on the side in the assembly direction A for being locked to the shaft 31 by a predetermined locking allowance T shown in FIG. A curved guide surface 33 is formed. In the present embodiment, the tapered surface 33 is formed on both the passage-side peripheral wall 32b of the bearing 32 and the clearance S of the shaft 31, but a tapered surface or a curved surface is formed on at least one of them. That's fine.

  When the lid 2 is attached to the box 1, the passage-side peripheral wall 32 b is slid into the gap S between the divided ends of the shaft 31 in accordance with the guide surface 33, and the gap S is caused to bend the support walls 4, 5 on both sides. It is allowed to pass while spreading.

  This requires that the passage-side width B1 of the passage-side peripheral wall 32b is smaller than the counter-passing-side width B2 of each divided end surface of the shaft 31. When the passage-side peripheral wall 32b passes through the gap S between the split ends of the shaft 31, the width is wider than the passage-side peripheral wall 32b and the counter-passage-side peripheral wall is formed by sharing the passage-side peripheral wall 32b and the bearing hole 32a. 32c is received by the shaft 31. As a result, the bearing hole 32 a is fitted to the shaft 31, and the lid 2 is assembled so that it can be opened and closed on the box 1.

  When the lid 2 and the box 1 are assembled as described above, in the fitted state of the shaft 31 and the bearing hole 32a, the passage-side peripheral wall 32b is disposed on the shaft 31 on the disengagement direction side opposite to the assembly direction A. Since it is locked with a predetermined locking allowance T, the passage-side peripheral wall 32b does not spread between the split ends of the shaft 31, that is, the gap S, and the bearing 32 does not come off the shaft 31.

  However, when the lid 2 rotates and the passage-side peripheral wall 32b is positioned on the gap S side having the width B2 of the shaft 31, the lid 2 may be detached from the box 1. Therefore, it is necessary to secure a locking margin T between the passage-side peripheral wall 32b and the shaft 31 within the width of the opening / closing angle in which the lid 2 is normally used. The opening / closing angle is preferably about 60 ° to 70 °. FIG. 1A shows the case of 65 °. That is, in the hinge structure of the present invention, the hinge mounting angle does not exist within the opening / closing angle of the used state, so that the lid 2 does not come off even if it happens accidentally during use.

  According to the configuration described above, the shaft 31 provided by dividing the middle between the side walls 4 and 5 and the clearance S between the divided ends are passed, and the bearing hole 32a is fitted to the shaft 31. In a simple and inexpensive combination with the bearing 32 having the passage-side peripheral wall 32b, the passage-side peripheral wall 32b is slid into the gap S between the split ends of the shaft 31 with guidance by the mutual guide surfaces 33, It is not necessary to place the lid 2 in a special hinge fitting position by simply passing it in the assembly direction A of the lid 2 while expanding the gap S. The shaft 31 and the bearing 32 are fitted together in the box 1. The lid 2 can be assembled and opened quickly without trouble.

  At the same time, the passage-side peripheral wall 32b after fitting is locked on the shaft 31 with a predetermined locking allowance T on the disengagement side, so that it can be inadvertently removed without a special stopper or mechanism. This can be surely prevented, and this can also reduce the cost.

  Further, the locking of the shaft 32 with respect to the passage-side peripheral wall 32b of the bearing 32 is due to the engagement of the locking allowance T, so that the engagement is only caused by the force in the disengagement direction acting on the assembled lid 2. I can't come off. However, when it is necessary to remove the lid for maintenance or the like, the locking can be released by widening the gap S between the divided shaft ends of the shaft 31 to a width larger than the locking allowance with a tool or the like. Therefore, it is more preferable that the shaft 31 is formed with a rounded portion 31a having a roundness adjacent to the locking allowance T region at the tip of the dividing end so that the releasing operation of the locking is easy. is there.

  Such a rounded portion 31 a is only adjacent to the locking allowance T and does not hinder the function of the locking allowance T. Therefore, even if the locking allowance T is not particularly increased, the function of preventing the lateral movement of the bearing portion 32 between the both side support walls 4 and 5 is ensured, and the passage-side peripheral wall 32b is provided at the tip of each divided end of the shaft 31. It does not fit between the round-shaped portions 31a and does not come off. Further, since the locking allowance T can be reduced, the passage-side peripheral wall 32b can pass between the split ends of the shaft 31 with a small amount of spreading, and can be positioned between the rounded portions 31a.

  In the illustrated example, as shown in FIG. 1B, the guide surface 33 is formed symmetrically in a tapered shape with substantially the same angle on both the divided end surfaces of the shaft 31 and both side surfaces of the passage-side peripheral wall 32b. It is. As a result, the passage-side peripheral wall 32b is in contact with the guide surfaces 33 between the divided ends of the shaft 31, and stably slides into the gap S between the divided ends of the shaft 31, and pushes the gap S evenly to the left and right. Since it passes without difficulty while spreading, the lid 2 can be assembled more smoothly and without failure.

  The accommodation box shown in FIGS. 1-4 is one example at the time of providing in the instrument panel 41 made from resin. A box 1 that is integrally formed on the instrument panel 1, a resin hinge cover 43 that is detachably attached to the box 1 with screws 42 as shown in FIG. And the resin lid 2 assembled so that the bearing 32 can be fitted to the shaft 31 and opened and closed as described above.

  The lid 2 includes a lid inner 21 in which a bearing 32 is integrally formed, and a resin-made lid outer 22 that fits and covers the lid inner 21 from the front side. However, the material is not limited to this.

  The lid inner 21 is integrally formed with arms 21a extending upward from the left and right sides, and a bearing 32 is integrally formed at the tip of these arms 21a. In the bearing 32, the passage-side peripheral wall 32 b faces the assembly direction A of the lid 2, specifically, the assembly position side where the lid inner 21 closes the opening 1 a of the box 1, that is, the rear side. On the other hand, the non-passing side peripheral wall 32c is formed integrally with the arm 21a so as to face the opposite side, that is, toward the front side of the lid inner 21.

  As a result, the inner surface of the half circumference of the bearing hole 32a formed by the inner periphery of the passage-side peripheral wall 32b is passed through the die opening window 32d formed in the non-passage-side peripheral wall 32c wider than the passage-side peripheral wall 32b, and the lid inner 21 and the arm. 21a, the inner surface of the non-passing side half of the bearing hole 32a formed by the inner periphery of the non-passing peripheral wall 32c can be formed by a mold that forms the front side surface of the bearing 32, and the lid inner 21, the arm 21 a, and a mold that forms the back surface of the bearing 32.

  The hinge cover 43 has mounting seats 43a that are screwed from the front side to the upper inner surface of the box 1, and the arms 21a of the lid inner 21 are received from the front side on both sides of the mounting seats 43a. And an arm receiving recess 43b that covers a fitting portion between the bearing 32 and the hinge structure so that the hinge structure cannot be seen from the opening 1a side.

  A shaft 31 is formed integrally between the support walls 4 and 5 on both sides of the arm receiving recess 43b, which is divided in the middle to form a gap S as described above. The shaft 31 may be solid, but it is desirable to have a bowl shape as shown in FIGS. 1A, 1B, and 1D opened to the receiving side of the side arm 21a of the arm receiving recess 43b.

  If the shaft 31 is a solid body, there is a risk of causing sink marks on the side support walls 4 and 5, and if a collar shape is adopted, an arm receiving recess is formed during mold formation from the front and back of the hinge cover 43. This is because the inner surface can be molded through 43b. The both side support walls 4 and 5 allow flexural deformation for the gaps S between the divided ends of the shaft 31 to be expanded, but such conditions are satisfied even when made of metal instead of resin. be able to.

  When the lid outer 22 is fitted to the lid inner 21 from the front side, as shown in FIG. 1, the engaging claws 22a provided at several places around the back surface of the lid outer 22 are elastically engaged with the engaging pieces 21b on the lid inner 21 side. It is fixed by engaging.

  Further, as shown in FIGS. 1 (a) and 3, the lid 2 is closed by a vine spring 46 that is operated between a locking hole 45 provided on the side wall of the arm receiving recess 43b and the arm 21a. There is a neutral position between the position and the open position of the imaginary line, where the action of the spiral spring 46 is neutral. When the lid 2 swings from the neutral position to the closing side, the lid 2 is urged to the closing side and automatically closed.

  Further, when the lid 2 swings from the neutral position to the opening side, the lid 2 is urged to open and automatically opens. The solid line vine spring 46 centering on the locking hole 45 shown in FIG. 1 (a) shows the position acting on the closing direction side, whereas the imaginary line vine spring 46 acts on the opening direction side. Indicates the position.

  This means that, with respect to the hinge cover 43, the lid 2 is held both at the solid line position for closing the opening 1a of the b box 1 and at the opening position of the imaginary line for opening the opening 1a. Therefore, the lid 2 in the open position greatly opens the screwing portion of the hinge cover 43 applied to the screwing position of the box 1 to the outside through the opening 1a as shown in FIG.

  Therefore, if the shaft 2 and the bearing 32 are fitted together and the lid 2 is assembled to the hinge cover 43 in advance, and the lid 2 is set to the open position with respect to the hinge cover 43 when the assembly is assembled to the box 1, the hinge The cover 43 can be screwed to the mounting position of the box 1 while the cover 2 is attached, and the fitting operation of the shaft 31 and the bearing 32 is further facilitated.

  Further, in order to further facilitate the attachment to the hinge cover 43 in this assembled state, when the assembly is applied to a predetermined position of the box 1 as shown in FIG. It can be temporarily fixed by elastically engaging with an engagement window 1b formed on the inner wall.

  Thus, the operator does not need to hold the hinge cover 43 in the screwing position when screwing, and the work is simplified. On the upper surface of the bearing 32, a flange portion 32e projecting toward the shaft 31 is integrally formed, and when the lid 2 is in the open position indicated by a virtual line in FIG. The gap S1 is closed from the back side, and a line of sight from the outside of the box 1 and unauthorized external force are prevented from reaching the inside through the gap S1 from the opening 1a.

  INDUSTRIAL APPLICABILITY The present invention is practically used for the hinge structure of various storage boxes of automobiles, and the shaft is divided from the direction perpendicular to the axis from the relationship between the intermediate dividing structure of the hinge shaft and the passage peripheral wall of the annular bearing of the hinge. It fits easily with a gap between the ends, and it is locked with a predetermined locking allowance in the disengagement direction so that it does not come off. Push the gap between the split ends of the shaft as necessary. It can be unlocked and opened for maintenance.

1 Box 2 Lid 3 Hinge 31 Shaft 32 Bearing 32a Bearing Hole 32b Passing-side Peripheral Wall 32c Non-Passing Peripheral Wall 33 Guide Surface 46 Wedge Spring A Assembly Direction S Clearance

Claims (1)

In the hinge structure of the storage box with the hinge side on one side and the hinge bearing on the other side of the box side and the lid side,
The shaft is provided so as to divide the middle between the supporting walls on both sides to form a gap between the divided ends,
The bearing has a passage-side circumferential wall for allowing the bearing hole to be fitted to the shaft from a direction perpendicular to the axis by passing the gap in the assembly direction of the lid, and a non-passing-side circumferential wall wider than the passage-side circumferential wall,
On at least one of each divided end surface of the shaft and both side surfaces of the passing side peripheral wall of the bearing,
Passing side peripheral wall can pass while expanding the gap between shaft split ends,
A hinge structure for a storage box, wherein a taper surface or a curved guide surface that is tapered is formed on the assembly direction side so as to be locked by a shaft with a locking allowance on the release direction side. .