JP2003175951A - Lidded storage box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lidded storage box whose lid can be opened/closed with little change in an angle between arms of a torsion spring. <P>SOLUTION: On one of a base 20 and a lid 30, a spring rotation fulcrum (fixed point) 26 where one of arms 41 of a torsion spring 40 is rotatably supported and a first guide hole 27 through which the other arm 42 is inserted to allow the arm 42 to slide are provided. On the other of the base 20 and the lid 30, a second guide hole 37 is provided, with which a leading edge of the arm 42 of the torsion spring 40 inserted through the first guide hole 27 is slidably locked when the lid 30 is rotated. A distance between an intersection where the first guide hole 27 and the second guide hole 37 intersect and the rotation fulcrum is made to be constant irrespective of a rotation angle of the lid 30. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage box with a lid, and more particularly to a storage box using a torsion spring for adjusting the opening / closing force of a lid.

[0002]

2. Description of the Related Art Conventionally, as a storage box with a lid, FIG.
As shown in FIG. 9, the lid body 82 and the base body 81 are connected by a known hinge member J, and the arm portions 84 and 85 of the torsion spring 83 are locked between the lid body 82 and the base body 81. There is a storage box with a lid 80 in which a lid 82 is rotatable with respect to a base 81. The illustrated lid body 82 has a box-like shape with an opening at the top and an article housing portion formed therein.
There is also a case in which the opening portion of the base is covered with a simple plate-like body.

Further, the torsion spring 83 has the arm portion 8 in a state where the angle between the arm portions 84 and 85 is narrower than that in the free state.
4, 85 are locked to the lid 82 and the base 81, and the restoring force of the torsion springs 83 for opening the arms 84 and 85 always acts between the lid 82 and the base 81. Then, in accordance with the rotation of the lid body 82, in the torsion spring 83, the locking portion of the arm portion 84 on the lid body 82 side moves in the rotation direction of the lid body 82. When the lid body 82 exists on the base body 81 side with a position called a turnover point as a boundary, the lid body 82 is rotated to the base body 81 side by the elastic restoring force of the both arm portions 84 and 85. When the lid 82 exists at a position beyond the turnover point and far from the base 82, the elastic restoring force of the both arms 84 and 85 causes the lid to be closed. 82 to base 8
A force that opens the lid 82 by rotating it in the direction away from 1 acts. The turnover point varies depending on the size and shape of the lid body 82, the position of the rotation axis of the lid body 82, and the like.

However, in the housing box with lid 80, when the lid 82 is closed from the fully opened state and the turnover point is exceeded, the torsion spring 83 is provided.
Due to the restoring force, the lid 82 vigorously rotates toward the base body 81 side, collides with the base body 81, and closes while making a noise, which causes a problem that the closing sound is noisy.

Further, in the storage box with a lid 80, the force that the user must apply to the lid body 82 when the lid body 82 is rotated is different depending on the rotation position of the lid body 82. It was hard to say that the opening and closing operation was smooth.

Further, in order to surely close the lid body 82 to the base body 83 side, the elastic restoring force between both arm portions 84 and 85 of the torsion spring 82 may be increased. If the lid 82 is not pulled strongly, the lid 8
2 cannot be opened, and operability deteriorates. Therefore, the elastic restoring force between the arm portions 84 and 85 of the torsion spring 82 is usually adjusted so that the lid body 82 can be easily opened, and the adhesion force between the lid body 82 and the base body 83 is thereby adjusted. When the storage box 80 with lid is vibrated, the lid 82 and the base body 83 are weakened.
An abnormal noise, which is called a chattering noise, is liable to occur between and. In particular, when the storage box 80 with a lid is used as a console box, a glove box or the like as an interior of an automobile or the like, the lid 8 is vibrated by the vibration of the automobile.
2 and the base body 83 are apt to cause rattling or abnormal noise, which causes a discomfort to an occupant.

As a result of the present inventor's examination of the problems of the opening / closing operability and the chattering noise, as a result, in the conventional storage box with a lid, the angle between the arm portions of the torsion spring changes depending on the rotating position of the lid body. It was found that the change in the restoring force of the torsion spring due to the change in the angle between the two arm portions is the cause of the open / close operability problem and chatter noise. For example, in FIG. 9, the angle S1 between the arms when the lid 82 is open is larger than the angle S0 between the arms when the lid 82 is closed. Due to the change in the angle between the parts, there are problems of opening and closing operability of the lid 82 and a problem of generation of abnormal noise.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above point, and the lid body is substantially unchanged from the closed state to the open state of the angle between the arm portions of the torsion spring. (EN) Provided is a storage box with a lid, in which the opening and closing operability of the lid is improved by suppressing the generation of abnormal noise.

[0009]

SUMMARY OF THE INVENTION That is, the invention of claim 1 is a base body, a lid body that can be opened and closed between the base body by rotation about a rotation axis, and the base body. In a storage box with a lid, which includes a torsion spring having two arm portions that are locked to the lid, a fixing point that rotatably supports one arm portion of the torsion spring, and the other of the torsion springs. It has a first guide hole and a second guide hole for slidably holding the arm portion, and the first guide hole and the second guide hole are on different surfaces.

According to a second aspect of the present invention, in the first aspect, a fixing point is provided on one of the base body and the lid body, and a first guide hole is provided on one of the base body and the lid body. It is characterized by having a guide hole.

According to a third aspect of the invention, in the first or second aspect, the rotating body is provided on the arm portion of the torsion spring held in the first guide hole and the second guide hole.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the first guide hole comprises a locus including an arc having a fixed point as a center of a circle, and the second guide hole is the first guide hole. It is characterized in that it has an elongated hole shape that intersects with the guide hole on a different plane.

According to a fifth aspect of the present invention, in the third or fourth aspect, the rotor of the torsion spring is located at an intersecting portion where the first guide hole and the second guide hole intersect at different planes, and the first guide hole is provided. And abutting on the inner peripheral edge of the second guide hole.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the angle formed by both arm portions of the torsion spring is constant regardless of the rotation angle of the lid. Is characterized by.

[0015]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings. 1 is an overall perspective view of a storage box with a lid according to an embodiment of the present invention as viewed from the side of the base body.
Is a main part perspective view showing a part of the base body by cutting away, FIG. 3 is a main part perspective view of the lid, FIG. 4 is a perspective view of a torsion spring, FIG. 5 is a sectional view taken along line 5-5 of FIG. 1, and FIG. FIG. 7 is a cross-sectional view showing the opening / closing operation of the lid of the storage box with the lid, and FIG. 7 is a schematic diagram illustrating the movement of the torsion spring in FIG.

1 to 3 shows a storage box 10 with a lid according to an embodiment of the present invention, which is referred to as a door pocket provided inside a door of an automobile, and includes a base body 20 and the base body. It comprises a lid body 30 rotatably connected to the hinge body 20 (shown in FIG. 6) and a torsion spring 40 provided between the base body 20 and the lid body 30.

In this example, the base body 20 has a box shape of a required size with the lid body 30 side opened, and the front side (the lid body 30).
The lower end of the side) serves as the pivot axis H1 of the hinge member H. The rotation axis H1 of the hinge member H also serves as the rotation axis H1 of the lid body 30.

The right side wall 21 of the base body 20 is an outer wall 22.
The inner wall 23 has a double structure, and a hollow portion 24 is formed between the outer wall 22 and the inner wall 23. A protrusion 25 is provided in the hollow portion 24 on the back side of the front surface of the right side wall 21. The protrusion 25 in this example is formed of a rib-shaped protrusion, and a rotation support portion 26 for a spring along the width direction of the lid body 30 is formed in a groove shape from the upper surface of the protrusion 25 on the tip side. . The spring rotation support portion 26 serves as a fixed point that rotatably supports one arm portion of the torsion spring. Further, the inner wall 23 serves as a first guide portion of the torsion spring 40, and a first guide hole 27 is formed. The first guide hole 27 has a locus including an arc with the rotation support portion (fixing point) 26 for the spring as the center of a circle, and the rotation axis H of the lid body.
The shape is such that it bulges outward (to a direction away from the pivot axis H1 of the lid) with respect to the first side and partially surrounds the outer circumference of the spring pivotal support portion (fixed point) 26.

The lid 30 comprises a front surface 31 sized to cover the opening of the base body 20, and an article housing portion 33 formed on the back side 32 of the front surface 31, and the lower end on the front surface 31 side is provided with the above-mentioned. With the hinge H, the base body 2 is positioned so that the rotation axis H1 is located.
It is linked to 0. A recess (not shown) is formed in the upper part of the front surface 31 of the lid body 30 for catching a finger when the lid body 30 is rotated toward the front side.

The article accommodating portion 33 of the lid 30 is sized to fit in the opening of the base body 20 and has a box-like shape with an upper opening so that an article can be accommodated therein. The right side wall 34 of the article accommodating portion 33 is a surface that is substantially parallel to the inner wall 23 of the right side wall 21 of the base 20, and also serves as a second guide portion, and a second guide hole 37 is formed. The second guide hole 37 has a long hole shape that intersects with the first guide hole 27 on a surface different from the first guide hole 27 in the rotation range of the lid body 30. In this embodiment, the second guide hole 37 is formed substantially along the vertical direction of the lid body. Has been done. The intersection of the first guide hole 27 and the second guide hole 37 is geometrically not on the same plane,
An intersection in a twisted position.

At the intersection of the arc-shaped first guide hole 27 and the oblong-shaped second guide hole 37 (intersection on a different plane), the first guide hole 27 is a spring rotation supporting portion ( Since it is composed of a locus including a circular arc having the fixed point) 26 as the center of the circle, the rotation support portion (fixed point) 26 for the spring and the locking portion 44 (shown in FIG. 7) at the intersecting portion are formed. The distance is always constant within the rotation range of the lid body 30. In addition, the crossing portion (the tip locking portion 4 in this embodiment is
4) and the rotation support portion (fixed point) 26 for the spring, the angle R0 between both arms of the torsion spring 40 (shown in FIG. 7) is set to be a required amount narrower than the angle in the unloaded free state. Thus, the distance between the tip ends of both arms 41 and 42 is made equal to the distance between the tips of both arms.

As shown in FIGS. 4 and 5, the torsion spring 40 is a spring member in which the two arm portions 41 and 42 are wound in a coil shape, and the tips of both arm portions 41 and 42 are in opposite directions. The front end locking portions 43 and 44 are bent in a hook shape. The torsion spring 40 has a hollow portion 24 between the outer wall 22 and the inner wall 23 of the right side wall 21 of the base body 20.
In the state where the angle R0 between the two arms is narrowed by a required amount as compared with the angle in the unloaded free state, one of the tip end locking portions 43 is a spring rotation support portion of the base body 20 ( Fixed point) 26, the other end locking portion 44 is inserted into the first guide hole 27, and is locked in the second guide hole 37 of the lid body 30. And is held at the intersection of the second guide hole 37. In addition, in this embodiment, the inner peripheral edge 28 of the first guide hole 27 and the second guide are provided in the tip end locking portion 44 that is locked at the intersection of the first guide hole 27 and the second guide hole 37. Inner peripheral edge 3 of hole 37
8 is attached to the rotary body 50, and the front end locking portion 44 is attached to the lid 2 through the first guide hole 27 and the second guide hole 37.
It can slide smoothly according to 0 rotation. In this example, the rotating body 50 has the tip locking portion 44.
And a side plate 51 and 52 formed on both sides thereof.
Contact the inner peripheral edge 28 of the first guide hole 27 and the inner peripheral edge 38 of the second guide hole 37, and the side plates 51 and 52 on both sides are the outer surface of the right side wall 21 of the base body 20 and the inner surface of the right side wall 34 of the lid 30. With the space between them, the rotary body 50 is inserted into the first guide hole 27.
It does not fall off from the intersection of the second guide hole 37.

The opening and closing of the lid 30 in the lidded storage box 10 will be described with reference to FIGS. 6 and 7.
First, when the lid body 30 is closed, a restoring force between the arm portions 41 and 42 of the torsion spring 40 applies a force for rotating the lid body 30 to the base body 20 side. The lid 30 comes into close contact with the base body 20. At that time, the torsion spring 40 is provided with the distal end locking portion 43 of one arm portion 41 locked to the spring rotation support portion (fixing point) 26 of the base body 20, and the first guide hole in the base body 20. The distance between 27 and the tip locking portion 44 of the other arm portion 42 locked at the intersection of the second guide hole 37 of the lid 30 intersects with the spring rotation support portion (fixing point) 26. It is equal to the distance to the part (the tip locking portion 44 in the embodiment).

Next, when the lid 30 is opened to store or take out an article, the upper portion of the lid 30 is pulled toward the front side (P direction) and the lid 30 is rotated to rotate the base body. Pull out from 20. The distance F2 between the spring rotation support portion (fixing point) 26 and the intersecting portion (the tip locking portion 44 in the embodiment) during the opening and at the time of full opening.
Since the first guide hole 27 and the second guide hole 37 are configured to be constant regardless of the rotation position of the lid body 30 as described above, the distance F when the lid body 30 is closed.
The distance between the front end locking portions 43 and 44 of both arm portions of the torsion spring 40 is also the same as that when the lid body 30 is closed.

Further, when closing the lid body 30, the upper portion of the lid body 30 is pushed toward the base body 20 side to rotate the lid body 30. At that time, the rotation support portion for the spring (fixing point)
26 and the distance between the intersecting portion (the tip locking portion 44 in the embodiment) and the tip locking portions 4 of both arms of the torsion spring 40.
The distance between 3 and 44 is also equal to the distance between the spring rotation support portion (fixing point) 26 and the intersecting portion (locking portion 44 in the embodiment) when the lid 30 is closed.

Two arm portions 4 of the torsion spring 40
The distance between the front end locking portions 43, 44 of the armatures 1, 42 corresponds to the angle R0 between the arm portions of the torsion spring, and the angle R0 between the arm portions corresponds to the restoring force generated in the arm portions 41, 42. It corresponds. Therefore, in the storage box with a lid 10, the two arm portions 41,
Since the distance between the tip engaging portions 43 and 44 of 42 is constant, the angle R0 between the two arms of the torsion spring 40,
R1 (open state of lid 30), that is, both arm portions 41,
Since the restoring force generated at 42 becomes constant and the force of the torsion spring 40 applied to the lid 30 becomes constant, the opening / closing operation of the lid 30 can be smoothly performed. Further, it is possible not only to prevent the lid body 30 from suddenly closing or opening and making a loud noise before and after the turnover point, but also by the torsion spring 40 between the lid body 30 and the base body 20. Since a constant force is always applied, it is possible to prevent abnormal noise due to rattling of the lid 30.

The present invention is not limited to the above-described embodiments, but may be modified as appropriate without departing from the spirit of the invention. For example, in the above-described embodiment, the spring rotation support portion and the first guide hole are provided on the right side of the base body, and the second guide hole is provided on the right side of the lid body. A rotation support portion for springs or the like may be provided, or may be provided on both sides. Further, contrary to the above embodiment, the second guide hole may be provided on the base body side, and the rotation support portion for spring and the first guide hole may be provided on the lid body side. Furthermore, in the above embodiment, the right side wall of the base body is hollow with a double wall and the inner wall is the first guide portion. However, the side wall of the base body is not a double structure and the first guide portion is provided separately from the side wall. May be provided. Similarly, the second guide portion of the lid does not have to serve as the side wall of the lid and may be provided separately.
Further, the lid body is not limited to the box shape having the upper opening.

[0028]

As shown and described above, according to the storage box with lid of the present invention, a constant restoring force by the torsion spring acts between the lid and the base body regardless of the rotation angle of the lid. The smooth opening / closing operation of the lid body can be realized, and the rattling of the lid body and the abnormal noise due to the rattling or vibration can be suppressed. In particular, if it is used as a storage box with a lid for automobile interiors, it is possible to suppress the influence of vibration of the automobile and prevent occupants from feeling uncomfortable.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a storage box with a lid according to an embodiment of the present invention as viewed from a base side.

FIG. 2 is a perspective view of a main part showing a base with a part cut away.

FIG. 3 is a perspective view of a main part of a lid body.

FIG. 4 is a perspective view of a torsion spring.

5 is a sectional view taken along line 5-5 of FIG.

FIG. 6 is a cross-sectional view showing an opening / closing operation of a lid of a storage box with a lid.

FIG. 7 is a schematic view for explaining the movement of the torsion spring in FIG.

FIG. 8 is a perspective view of a conventional storage box with a lid.

9 is a cross-sectional view of the main parts of FIG.

[Explanation of symbols]

10 Storage box with lid 20 base 26 Rotation support for spring (fixed point) 27 First guide hole 30 lid 37 Second guide hole 40 torsion spring 43,44 Tip locking part 50 rotating body

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3B088 CA06 LB01 LB04 LB06                 3D022 CA07 CA08 CD17                 3E084 AA05 AA14 CA03 DA10 FA08                       GA07 GB07 GB30

Claims (6)

[Claims] 1. A base body, a lid body that can be opened and closed between the base body by pivoting about a pivot shaft, and two arm portions locked to the base body and the lid body. In a storage box with a lid, which comprises a torsion spring having: a fixing point for rotatably supporting one arm of the torsion spring, and a first guide hole for slidably holding the other arm of the torsion spring. And a second guide hole, wherein the first guide hole and the second guide hole are on different surfaces. 2. A fixing point is provided on one of the base and the lid, and a first guide hole is provided on one of the base and the lid, and a second guide hole is provided on the other. The storage box with a lid according to claim 1. 3. The storage box with a lid according to claim 1, wherein a rotating body is provided on the arm portion of the torsion spring held in the first guide hole and the second guide hole. 4. The first guide hole comprises a locus including an arc having a fixed point as a center of a circle, and the second guide hole has an elongated hole shape intersecting with the first guide hole on a different plane. The storage box with a lid according to any one of claims 1 to 3. 5. The rotating body of the torsion spring is located at an intersecting portion where the first guide hole and the second guide hole intersect on different surfaces, and abuts on the inner peripheral edges of the first guide hole and the second guide hole. The storage box with a lid according to claim 3 or 4. 6. The torsion spring according to claim 1, wherein an angle formed by both arms of the torsion spring is constant regardless of a rotation angle of the lid. Storage box with lid.