JP2007204093A - Box body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a box body with a cover body open/close mechanism for closing the a cover body completely and for locking the cover body at a predetermined open angle even when it is used on a low box body. <P>SOLUTION: One end of an arm 6 is mounted freely rotatable on the side of a cover body 3. The arm 6 is provided with the first curve part 6a, the second curve part 6b and a lock part 6c. The first curve part 6a curves protrusively nearing a perpendicular line A and the second curve part 6b curves protrusively parting from the line A. When the cover body 3 is open, the lock part 6c catches a catching part 11 to make the lower side edge 6d of the arm 6 touch the edge part a-point of a guide long hole 10 for locking the body in an open condition. When the body 3 is turned counterclockwise, it is unlocked to move the lower side edge 6d down diagonally toward the left bottom along the curve of the arm 6 contacting the a-point for a close condition. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a box.

  FIG. 5 is a cross-sectional view of a side of a box schematically showing an example of a conventional box lid opening / closing mechanism (see, for example, Patent Document 1).

  As shown in FIG. 5A, in the conventional box body, a lid body 23 is rotatably provided on a side edge of the opening 22 of the box body 21 via a hinge 24 so that the opening 22 can be opened and closed. ing. A curved arm 25 is attached to a side portion of the lid body 23 so that one end of the arm body can be freely rotated. Accordingly, the inside of the guide slot 26 can be slid. The distal end of the arm 25 is bent, and the bent portion becomes a lock portion and engages with the edge portion of the guide long hole 26 as shown in the figure to lock the lid 23 in the open state.

Japanese Utility Model Publication No. 6-87087

  However, when the arm 25 shown in FIG. 5A is used in a box having a low height, when the lid 23 is shifted to the closed state, as shown in FIG. However, in practice, the end of the arm 25 can be held by the bottom so that the lid 23 cannot be completely closed, and the lid 23 is in a half-open state. turn into. Therefore, when the conventional arm 25 is used, the box body needs to have a certain height or more. When the box body is low, the arm 25 shown in FIG. 5 cannot be used. In particular, when the bottom surface and each side wall of the box body 21 and between the top surface and each side portion of the lid body 21 are formed with curved surfaces that have been rounded as shown in FIG. The length of the arm 25 that can be stroked in the vertical direction is shortened by the curved surface shape, and the mounting position of the arm 25 with respect to the lid body 23 must be a portion that is not subjected to the rounding process. It is easy to happen.

  FIG. 6A is a cross-sectional view of a side surface of a box schematically showing another example of a conventional lid opening / closing mechanism of the box. The arm 25 used in this example is curved in the opposite direction to the arm 25 of FIG. If the arm 25 having the shape shown in FIG. 6A is used, the end of the arm 25 can be held at the bottom when the lid 23 is closed, and the problem of the arm as shown in FIG. 5 is solved. To do. However, in the middle of shifting the lid 23 from the closed state shown in FIG. 6A to the open state, the arm 25 is held by the guide slot 26 as shown in FIG. There is a problem that the lid 23 cannot be opened. If the guide long hole 26 is lengthened, the aesthetic sense is lost, and there is a possibility that the operation is not performed due to foreign matter mixed in from the guide long hole 26. In addition, the locked state cannot be obtained. The length of the hole 26 needs to be as short as possible.

  On the other hand, as shown in FIG. 7, if the arm 25 is composed of two arm members 25a and 25b that are rotatable with respect to each other and the arm 25 has a joint, the arm 25 is bent even if the box body 21 is shallow. The lid body 23 can be completely closed. However, with this configuration, there are problems such as an increase in the number of parts and an increase in assembly time.

  The present invention has been made to solve the above-described problem, and even when the box body has a low height, the lid can be completely closed and the lid can be locked at a predetermined opening angle. It is an object of the present invention to provide a box having a lid opening / closing mechanism that can be used.

  The box according to the present invention is pivotally attached to the side edge of the opening of the box body via a hinge, and a lid that opens and closes the opening and one end pivotally connected to the lid, and the other end. Has an arm made of a single member formed with a lock portion that abuts on a locking portion provided on a side wall orthogonal to the side edge of the box body and regulates an opening angle of the lid body, It has the 1st bending part provided in the rotation center point vicinity of the said arm, and the 2nd bending part provided continuously from the said 1st bending part, It is characterized by the above-mentioned.

  In the box according to the present invention, in the closed state of the lid, the first bending portion is bent in a direction away from a perpendicular passing through the rotation center point, and the second bending portion is adjacent to the perpendicular. It is characterized by being configured to bend in the direction.

  In the box according to the present invention, in the closed state of the lid, the first bending portion is curved in a convex shape in a proximity direction with respect to a perpendicular passing through the rotation center point, and the second bending portion is Further, the present invention is characterized in that it is configured to bend in the perpendicular direction.

  Further, in the box according to the present invention, when the lid reaches the opening angle of any one of 80 degrees to 100 degrees with respect to the box main body, the arm is configured so that the locking portion is in contact with the locking portion. It is characterized by touching.

  The box according to the present invention is characterized in that a pair of the arms are provided on the side wall of the box body.

  In the box according to the present invention, a guide long hole extending in a direction orthogonal to the side edge is provided on an end surface of the side wall orthogonal to the side edge of the box body, and the arm is formed in the guide long hole. It is inserted, and slides in the guide long hole as the lid opens and closes.

  Further, the box according to the present invention is characterized in that, in the opening / closing operation of the lid, the arm slides in contact with the hinge side edge of the guide long hole.

  According to the present invention, by using the arm in which the first bending portion and the second bending portion are provided continuously, the lid body can be smoothly rotated even when the height of the box body is low, The body can be closed completely, and the lid can be reliably locked in the open state at a predetermined opening angle. Further, since the arm is made of a single member, the number of parts is not increased, and the manufacturing is simple and low cost can be realized.

  Further, in the closed state of the lid, the first bending portion bends in the direction away from the perpendicular line passing through the rotation center point or in the proximity direction to the perpendicular line, and the second bending portion is in the proximity direction of the perpendicular line. Alternatively, by forming a shape that curves in the direction in which the perpendicular is separated, the rotation angle of the lid can be increased while shortening the vertical movement stroke of the arm. As a result, the lid can be completely closed even in a shallow box body.

  Further, since the arm is configured to lock when the lid reaches any opening angle of 80 to 100 degrees, the lid can be opened at a practically convenient angle.

  Further, by providing a pair of arms, the lid can be opened and closed stably.

  In addition, since the guide long hole through which the arm is inserted is provided and the arm slides in the guide long hole as the lid is opened and closed, the opening and closing operation of the lid can be further stabilized.

  Also, when the arm slides in the guide slot, it slides in contact with the hinge side edge of the guide slot, so the lid moves while being supported by the hinge side edge when opening and closing, Furthermore, a stable and smooth operation can be obtained.

  1, 2, and 3 are partial cross-sectional views showing a side surface of a box according to an embodiment of the present invention, FIG. 1 is a view showing an open state of a lid, and FIG. 2 is a view from an open state. The figure which shows the state in the middle of transfering to a closed state, FIG. 3 is a figure which shows a closed state, FIG. 4 is the perspective view and partial enlarged view of a box body in the open state of a cover body. In addition, although this Embodiment demonstrates the case where this invention is applied to a safety box, the use of the box by this invention is not specifically limited.

  As shown in FIGS. 1 to 4, the box 1 includes a box body 2 and a lid 3. The box body 2 has a double structure of an outer box 2a and an inner box 2b. Similarly, the lid 3 has a double structure of an outer cover 3a and an inner cover 3b. The box body 2 has an opening 4 at the top. The lid 3 is rotatably provided at a side edge of the box body 2 via a hinge 5 so that the opening 4 can be opened and closed. The hinge 5 is biased in a direction to open the lid 3. Yes. The outer box 2a and the outer lid 3a are preferably made of metal such as aluminum, and the inner box 2b and the inner lid 3b are preferably made of resin.

  An arm 6 is provided on the side of the lid 3, and one end of the arm 6 is pivotally supported on the shaft support 7. As shown in FIGS. 1 to 3, the arm 6 includes a first bending portion 6 a and a second bending portion 6 b that continues to the first bending portion 6 a, and a distal end portion that is bent to form a lock portion 6 c. As shown in FIG. 3, the first curved portion 6 a is perpendicular to the extension line when the lid 3 is in the closed state when the perpendicular A passing through the rotation center point (the shaft support portion 7) of the arm 6 is used as a reference. Curved from A toward the separating direction (leftward in FIG. 3), the second curved portion 6b is then curved on the extension line in the proximity of the perpendicular A (rightward in FIG. 3). It is formed to do. That is, the first bending portion 6a is formed so as to be convex in the proximity direction to the perpendicular A, and the second bending portion 6b is formed to be convex in the direction away from the perpendicular A. Contrary to the above, the first bending portion 6a may be bent in the proximity direction of the perpendicular A, and the second bending portion 6b may be bent in the separation direction of the perpendicular A. Reference numeral 6d denotes a lower edge of the arm 6, and 6e denotes an upper edge of the arm 6.

  As shown in FIGS. 1 and 4, a guide slot 10 having a length L extending in the orthogonal direction is provided in the upper end surface 9a of the side wall 9 orthogonal to the side wall 8 on the hinge 5 side of the inner box 2b. Yes. The arm 6 is inserted into the guide long hole 10, and the edge of the guide long hole 10 on the side opposite to the hinge 5 is a locking part 11. The inside of the side wall 9 (below the upper end surface 9a) is hollowed out by the outer box 2a and the inner box 2b, and the arm 6 is inserted into the hollow. In addition, the box body 2 is appropriately provided with a key device (not denoted by reference numerals) necessary for the safety box, a handle (not shown), and the like.

  Next, the opening / closing operation | movement of the cover body 3 of the box 1 by the said structure is demonstrated.

  As shown in FIG. 1, in the open state of the lid 3, the lock portion 6 c at the tip of the arm 6 contacts the locking portion 11, and the lower edge portion 6 d near the tip of the arm 6 has the guide slot 10. Is in contact with point a at the edge of the hinge 5 side. In this case, the opening angle of the lid 3 is preferably set to 80 to 100 degrees with respect to the box body 2 from the viewpoint of ease of work when using the box 1 as a safety box. It is.

  When the lock part 6c contacts the locking part 11, the lid 3 is restricted from opening more than the opening angle, and a stable open state is maintained. When the lid 3 is rotated counterclockwise in FIG. 1 in order to close the lid 3 from this open state, the lock portion 6c of the arm 6 is released from the locking portion 11, and the lock is released. The lower edge 6d descends in the diagonally lower left direction in FIG. 1 while contacting the point a by its own weight.

  When the lid 3 is further rotated and the arm 6 is lowered, the lid 3 is in a semi-closed state as shown in FIG. 2. Even in this state, the lower edge 6d of the arm 6 hits the point a. Slide while touching. When the lid 3 is further rotated counterclockwise from the position shown in FIG. 2, the closed state shown in FIG. 3 is reached, and at this time, the vicinity of the shaft support 7 of the lower edge 6d of the arm is in contact with the point a. In this closed state, it is preferable that a slight gap d is formed between the tip of the arm 6 and the bottom surface of the inner box 2b. Due to the gap d, particularly when the outer box 2a is metallic such as aluminum and the inner box 2b is made of resin, the arm 6 may be worn by rubbing the bottom surface of the box body 2 or may cause unpleasant noise. This is because the lid 3 can be opened and closed smoothly.

  Further, when the lid 3 is rotated clockwise from the position shown in FIG. 3 in order to open the lid 3 from the closed state, the arm 6 rises in the upper right direction, and after the half-open state shown in FIG. It becomes a state. Even while the arm 6 is raised, the lower edge 6d of the arm 6 shown in FIG. Note that when the lid 3 is opened from the closed state, the mounting strength of the arm 6 with respect to the lid 2 may be adjusted so that the upper edge 6e of the arm 6 contacts the point b of the locking portion 11.

  In the open state of FIG. 1, the lock portion 6 c of the arm 6 contacts the locking portion 11, and the vicinity of the tip of the lower edge 6 d of the arm 6 contacts the point a of the edge of the guide slot 10. The lid 3 is locked at a predetermined opening angle, and a stable open state is obtained. In this case, if the length L of the guide long hole 9 is large, the aesthetics are lost, and there is a possibility of causing malfunctions due to foreign matter mixing from the guide long hole 9, and the above locked state can be obtained. Therefore, it is necessary to make the length L of the guide slot 9 as short as possible. On the other hand, during the rotation of the lid 3, the arm 6 always has the shape of the first bending portion 6 a and the second bending portion 6 b while the lower edge 6 d or the upper edge 6 e is in contact with the point a or b. Slide along. By sliding the arm 6 along this curved shape, the vertical stroke of the arm 6 (arrow S in FIGS. 1 and 3) can be shortened, and the vertical stroke is short. The rotation angle from the open state to the closed state of the lid 3 can be increased. Thereby, even if the height of the box 1 is low, the lid 3 can be completely closed by rotating a sufficiently large angle. Moreover, the length L of the guide long hole 10 can be shortened, and the lid 3 can be reliably locked in the open state.

  According to the present embodiment, the arm 6 is provided with the first bending portion 6a and the second bending portion 6b, so that the arm is composed of two members as in the conventional case of FIG. Thus, substantially the same operation as that of the two members can be obtained. Therefore, even if the height of the box 1 is low, the arm 6 cannot be held on the bottom of the box, and the lid 3 can be completely closed and the lid 3 can be securely locked at a predetermined opening angle. Therefore, manufacturing is easy and cost reduction can be achieved.

  In the present embodiment, the arm 6 is provided on one side of the lid 3, but a more stable operation can be obtained by providing the pair of arms 6 on both sides of the lid 3.

It is a partial cross section figure of the box side which shows the open state of the box by embodiment of this invention. It is a partial cross section figure of the box side which shows the state in the middle of changing to the closed state from the open state of the box by embodiment of this invention. It is a partial cross section figure of the box side which shows the closed state of the box by embodiment of this invention. It is the perspective view and partial enlarged view of the box by embodiment of this invention. It is sectional drawing of the box body side surface which shows an example of the open state and closed state of the conventional box body. It is sectional drawing of the box side surface which shows the other example of the closed state and open state of the conventional box. It is sectional drawing of the box side surface which shows the other example of the closed state of the conventional box.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Box body 2 Box main body 2a Outer box 2b Inner box 3 Lid 3a Outer lid 3b Inner lid 4 Opening 5 Hinge 6 Arm 6a 1st curved part 6b 2nd curved part 6c Lock part 6d Lower edge 6e Upper edge 7 Shaft support part 8, 9 Side wall 9a Upper end surface 10 Guide slot 11 Locking part A Perpendicular

Claims (7)

A lid that is pivotally attached to a side edge of the opening of the box body via a hinge and opens and closes the opening;
One end is pivotally connected to the lid body, and the other end abuts on a locking portion provided on a side wall perpendicular to the side edge of the box body to regulate the opening angle of the lid body An arm made of one member formed of
A box having a first bending portion provided in the vicinity of the rotation center point of the arm and a second bending portion that is provided continuously from the first bending portion and curves in different directions.   In the closed state of the lid body, the first bending portion is bent in a separating direction of a perpendicular passing through the rotation center point, and the second bending portion is bent in a proximity direction of the perpendicular. The box according to claim 1.   In the closed state of the lid, the first curved portion is curved in a convex shape in a proximity direction with respect to a perpendicular passing through the rotation center point, and the second curved portion is convex in a separating direction of the perpendicular. The box body according to claim 1, wherein the box body is curved at a point.   2. The arm according to claim 1, wherein when the lid body reaches an opening angle of 80 degrees to 100 degrees with respect to the box body, the lock section abuts on the locking section. The box according to any one of claims 3 to 3.   The box according to any one of claims 1 to 4, wherein a pair of the arms are provided on the side wall of the box body.   A guide slot extending in a direction orthogonal to the side edge is provided on an end surface of the side wall orthogonal to the side edge of the box body, and the arm is inserted through the guide slot to open and close the lid body. The box according to any one of claims 1 to 5, wherein the box slides in the guide slot according to the operation.   The box according to claim 6, wherein in the opening / closing operation of the lid, the arm slides in contact with an edge of the guide long hole on the hinge side.

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