JP4862021B2 - Spring hinge - Google Patents

Description

  The present invention relates to a hinge, and more particularly, to a hinge including a spring that operates to return the blade when the blade of the hinge rotates.

Conventionally, a hinge including a spring is well known. For example, the spring hinge TH-61B described on page 2-65 of the Tochigiya General Catalog (Non-patent Document 1) issued by Tochigiya Co., Ltd. in 2006 has a pair of blades attached to each other. It is made to approach and the opening angle between blades acts so that it may become small. When the blades turn and the opening angle increases, the coil spring becomes in a high energy storage state and acts to return the turned blades.
Tochigiya general catalog issued in 2006 by Tochigiya Co., Ltd.

  In a hinge including a coil spring, the spring may be damaged while the blade is repeatedly swung. The hinge blades thus made will not automatically return, so the hinge must be removed from the door and replaced with a new one.

  An object of the present invention is to improve the conventional hinge so that when the spring included in the hinge is damaged, the spring can be replaced without removing the hinge from the door or the like.

  In order to solve the above-mentioned problems, the present invention is directed to the first blade and the second blade connected through a shaft so as to be able to swivel. It is a hinge with a spring from which a spring will be in an accumulating state so that it may return to the state before turning.

  In this hinge with a spring, the features of the present invention are as follows. The shaft is cylindrical and has a first half portion and a second half portion that bisect the shaft in the axial direction. The first blade is formed with a first sleeve, and the second blade is formed with a second sleeve. The first and second sleeves have the shaft leading the first half portion. Thus, the first sleeve is arranged in a row in the axial direction so that it can be inserted into and removed from the second sleeve. The first sleeve is formed such that an outer peripheral surface of the second half portion of the inserted shaft is reciprocally rotatable in a circumferential direction thereof, while the second sleeve is formed on an inner peripheral surface thereof. The radially inwardly protruding portion enters a recess formed in the outer peripheral surface of the first half portion of the inserted shaft, and the shaft rotates in the circumferential direction inside the second sleeve. It is preventing that. The spring has a coil shape extending in the axial direction on the inner side of the shaft, and is fixed to the first half portion of the shaft so that the spring is connected to the second blade via the shaft. A fixed end that is also fixed, and is attached to the first vane via a bracket that extends in the radial direction of the shaft and extends beyond the shaft in the second half portion of the shaft. When one blade turns, it has a movable end that rotates in the same direction as the first blade. When the movable end rotates in the same direction as the first blade, the spring is stored in the spring so as to return the movable end and the first blade to a state before the first blade is swung. Get ready.

  In one preferred embodiment of the present invention, the recess formed in the outer peripheral surface of the first half portion of the shaft extends in the axial direction in the first half portion, and the first half body A groove-like shape that is open at the tip of the portion, and when the shaft is inserted into the second sleeve, the protrusion of the second sleeve is formed in the groove-like shape from the tip of the first half portion. Enter the recess.

  In another preferred embodiment of the present invention, the bracket is formed to be detachable from the first blade.

  In the hinge with a spring according to the present invention, the spring that connects the first blade and the second blade so as to be pivotable, and returns the swiveled first and second blades to the state before swiveling is a cylindrical shaft. A coiled spring inserted in the shaft, the shaft being formed in the first blade and the second blade, and being inserted into and removed from the first sleeve and the second sleeve which are arranged in tandem. It is made possible. If the coil spring breaks, the coiled spring inserted into the shaft can be replaced by removing the shaft from the first and second sleeves, so the hinge can be repaired without removing it from the door etc. Can do.

  The details of the spring hinge according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a partially omitted view of a spring-loaded hinge 1 in use, with a portion broken away. The spring-loaded hinge 1 includes a first blade 11 attached to the door 2 with a screw 3, a second blade 12 attached to the fixed wall 5 with a screw 4, and the first blade 11 A spring member 13 (see FIG. 2) interposed between the second blade 12 and the spring member 13 is connected to the door 2 via a bracket 14, and the door is centered on the spring member 13. 2 opens while turning clockwise as indicated by arrow A. In the illustrated hinge 1 with a spring, the structure in the vertical direction B is a mirror image with respect to a center line C that bisects the dimension in the vertical direction B, and the second blade 12 connects the second sleeve 22. On the other hand, the first blade 11 has a pair of upper and lower first sleeves 21 in a state of being arranged in a row with the second sleeve 22 in between. However, in the following description, among the pair of first sleeves 21, the first sleeve 21 and the second sleeve 22 positioned in the upper part of FIG.

  FIG. 2 is an exploded view of the spring hinge 1 in which the door 2 and the wall 5 are shown in phantom lines. The first blade 11 in the drawing is an extruded product of aluminum, and is a hollow first interposed between the cylindrical first sleeve 21, the attachment portion 61 for the door 2, and the first sleeve 21 and the attachment portion 61. Connecting portion 62. A plurality of through holes 63 used for the screws 3 are formed in the attachment portion 61. A through hole 67 for attaching the member 66 with a screw 70 is formed in the first partition wall 64 of the connecting portion 62 so as to close the opening 62 a of the connecting portion 62. The second partition wall 68 in the connecting portion 62 forms a groove 68a extending in the vertical direction B. A first light shielding member 69 made of flexible rubber or thermoplastic plastic is inserted into the groove 68a. (See FIG. 3). The first sleeve 21 formed in a substantially cylindrical shape has an outer peripheral surface 71 and an inner peripheral surface 72. The first sleeve 11 has a length d in the vertical direction B.

  The second blade 12 is also an extruded product of aluminum, and has a cylindrical second sleeve 22 and a mounting portion 31 for the wall 5, and a hollow connecting portion interposed between the second sleeve 22 and the mounting portion 31. 32. A plurality of through holes 33 used for the screws 4 are formed in the attachment portion 31. A through hole 37 for attaching a member 36 for closing the opening 32 a of the connecting portion 32 with a screw 40 is formed in the third partition wall 34 in the connecting portion 32. The fourth partition wall 38 in the connecting portion 32 forms a groove 38a extending in the vertical direction B, and a second light shielding member 39 made of flexible rubber or thermoplastic is shown in the groove 38a. Inserted from above. The second sleeve 22 formed in a substantially cylindrical shape has an outer peripheral surface 41 and an inner peripheral surface 42, and the inner peripheral surface 42 has the same diameter as the inner peripheral surface 72 of the first sleeve 21. However, a plurality of protrusions 43 extending in the vertical direction B are formed on a part of the inner peripheral surface 42. The protrusion 43 protrudes from the inner peripheral surface 42 inward in the radial direction. The second sleeve 22 also has an upper end portion 44 and a lower end portion 46 (see FIG. 1). The upper end portion 44 and the lower end portion 46 are separated from the end portion 32b of the connecting portion 32 by a dimension d in the vertical direction B. ing.

  The spring member 13 shown in FIG. 2 has a cylindrical shaft 81 and a bracket 14. When viewed in the axial direction, the shaft 81 is divided into an upper half portion 82 including an upper end portion 81a and a lower half portion portion 83 including a lower end portion 81b. The first sleeve 21 and the second sleeve 22 are removably inserted from above. The upper half portion 82 is a portion that fits in the first sleeve 21, and has a smooth outer peripheral surface 82 b that can reciprocate in the circumferential direction of the first sleeve 21. A stopper 86 is formed on the top of the upper half portion 82, which is the upper end 81a of the shaft 81, to restrict the angle when the bracket 14 turns in the clockwise direction A in FIG. The upper end portion 81a is also provided with a turning center portion 14a of the bracket 14 and extends in the radial direction of the shaft 81 so as to reach the door 2 beyond the shaft 81. The lower half portion 83 of the shaft 81 is a portion that passes through the first sleeve 21 and fits in the second sleeve 22, and is formed with a plurality of grooves 87 extending in the vertical direction B as recesses in the outer peripheral surface 83 b. Yes. The lower end portion 87a of the groove 87 is in an open state downward, and when the lower half portion 83 is inserted into the second sleeve 22, the protrusion 43 formed on the inner peripheral surface 42 of the second sleeve 22 is formed. It enters the groove 87 through the lower end 87a. When the shaft 81 is inserted into the first and second sleeves 21 and 22, the turning portion 14 b of the bracket 14 comes into contact with the member 66 attached to the first blade 11 from the upper side in the drawing, and the member 66 is secured by the screw 88. Fixed to. The bracket 14 revolves independently of the shaft 81. When the bracket 14 revolves, the bracket 14 abuts against a stopper 86 formed on the shaft 81 to restrict the turning angle (see FIG. 4). Have.

  FIG. 3 is a view showing a cross section taken along line III-III in FIG. The first light shielding member 69 is inserted into the groove 68 a in the first blade 11, and the edge portion of the first light shielding member 69 is in contact with the outer peripheral surface of the second sleeve 22 in the second blade 12.

  FIG. 4 is an exploded view of the spring member 13. In addition to the cylindrical shaft 81 and the bracket 14, the spring member 13 includes a coil spring 91 that is housed inside the shaft 81 and extends in the vertical direction B. The coil spring 91 has an upper end portion 91 a and a lower end portion 91 b, and the upper end portion 91 a is attached to the turning center portion 14 a of the bracket 14 via the first attachment member 92. At the upper end portion 91a, the wire forming the coil spring 91 is bent in an inverted U shape, the screw 92a is stopped from the horizontal direction on the first mounting member 92, and the upper end portion 91a of the coil spring 91 is The coil spring 91 is attached to the first attachment member 92 by being hooked on the screw 92a. The first attachment member 92 and the bracket 14 are integrated by a screw 90 extending in the vertical direction B. At the lower end 91b of the coil spring 91, the wire is bent into a U shape. A second attachment member 93 is inserted into the lower end portion 81 b of the shaft 81, and the second attachment member 93 is fixed to the shaft 81 by a screw 94 extending in the horizontal direction. The screw 94 crosses the groove portion 93a formed in the second attachment member 93, and the lower end portion 91b of the coil spring 91 is fixed to the lower end portion 81b of the shaft 81 by being hooked on the screw 94 inside the groove portion 93a. Is done.

  In the hinge 1 with a spring formed in this way, the upper end portion 91a of the coil spring 91 in the spring member 13 is connected to the first blade 11 via the first mounting member 92, the bracket 14, and the member 66 (see FIG. 2). It is in the state attached to. The lower end portion 91 b of the coil spring 91 is fixed to the lower end portion 81 b of the shaft 81, and the shaft 81 is inserted into the groove 87 of the lower half portion 83 so that the protruding portion 43 of the second sleeve 22 enters. 2 The sleeve 22 does not move in the circumferential direction W (see FIG. 2). Therefore, when the door 2 is turned clockwise in FIG. 1, the first blade 11 integrated with the door 2 is also turned clockwise. In the coil spring 91, the upper end portion 91a connected to the first blade 11 rotates in the clockwise direction A, while the lower end portion 91b connected to the second blade 12 integrated with the wall 5 is stationary. Such a coil spring 91 is twisted in the clockwise direction A between the upper end portion 91a and the lower end portion 91b, and enters a stored state so as to return to the counterclockwise direction. Therefore, when the hand is released from the door 2, the door 2 automatically returns to the state shown in FIG. Thus, the upper end 91 a of the coil spring 91 functions as a movable end that moves in the clockwise direction A together with the first blade 11, while the lower end 91 b functions as a solid end that does not move with the second blade 12. is doing.

  When the coil spring 91 is damaged and it is desired to repair the hinge 1 with the spring, the screw 88 in the state shown in FIG. 1 is removed, and the spring member 31 is removed from the first and second sleeves 21 and 22. Next, if the screw 94 is removed from the lower end portion 81b of the shaft 81, the coil spring 91 can be extracted from the shaft 81 and replaced with a new one. Therefore, in this hinge 1 with a spring, the trouble of removing the 1st blade | wing 11 from the door 2 and removing the 2nd blade | wing 22 from the wall 5 when repairing it is unnecessary.

  1 and 2, the second light shielding member 39 incorporated in the spring hinge 1 is interposed between the first sleeve 21 and the second blade 12 in the first blade 11, and the first light shielding member 69 is Further, it is interposed between the first sleeve 11 and the second sleeve 22 of the second blade 12 to prevent light from leaking in the direction from the inside to the outside of the door 2 or vice versa. For example, when the door 2 is used as a door of a changing room, the light shielding members 39 and 69 can prevent light from leaking from the inside of the changing room.

  In addition, this invention can also be implemented in the aspect in which the 1st blade | wing 11 attached to the door 2 is attached to a wall, and the 2nd blade | wing 12 attached to the wall 5 is attached to a door. Furthermore, the 2nd blade | wing 12 attached to the wall 5 in the example of illustration may be attached to the bellows type door used by making a pair with the door 2. FIG. The first and second blades 11 and 12 in the illustrated example that are attached to the door 2 and the wall 5 so as to sandwich them from the thickness direction are either one of both surfaces of the door 2 and the wall 5. It is also possible to change the design so that it can be attached only to the surface. The present invention is not limited to the spring hinge 1 having a mirror image structure in the vertical direction B in FIG. 1, but can be implemented as a spring hinge having a structure of only the upper half shown in FIG. The groove 87 formed in the lower half portion 83 of the shaft 81 can be replaced with a recess that is formed on the inner peripheral surface 42 of the second sleeve 22 and into which an appropriately shaped protrusion can enter.

  FIG. 5 is a view similar to FIG. 4 showing an example of the embodiment. In the spring member 13 in FIG. 5, a tube 96 made of a flexible material such as Teflon or rubber is placed on the coil spring 91. Further, a tube 97 made of the same material is also placed outside the upper half portion 82 of the shaft 81. These tubes 96 and 97 can prevent the coil spring 91 and the shaft 81 from touching each other to make a metal sound, or prevent the shaft 81 and the second sleeve 22 from touching each other to make a metal sound. .

The figure which shows the hinge with a spring in use condition. An exploded view of a spring hinge. The figure which shows the III-III line | wire cut surface of FIG. The exploded view of a spring member. The figure similar to FIG. 4 which shows an example of embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hinge with a spring 11 1st blade | wing 12 2nd blade | wing 13 Shaft 14 Bracket 21 1st sleeve 22 2nd sleeve 42 Inner peripheral surface 43 Projection part 81 Shaft 82 2nd half body part (upper half body part)
82b outer peripheral surface 83 1st half part (lower half part)
83b Outer peripheral surface 87 Recess (groove)
91 Spring 91a Movable end 91b Fixed end W Circumferential direction

Claims (3)

The first blade and the second blade are connected to each other via a shaft so as to be able to turn. When either of these blades turns, the spring stores energy so that the turned blade returns to the state before turning. A hinge with a spring to be in a state,
The shaft is cylindrical and has a first half portion and a second half portion that bisect the shaft in the axial direction;
The first blade is formed with a first sleeve, and the second blade is formed with a second sleeve. The first and second sleeves have the shaft leading the first half portion. Are arranged in tandem in the axial direction so as to be insertable and removable from the first sleeve to the second sleeve,
The first sleeve is formed such that an outer peripheral surface of the second half portion of the inserted shaft is reciprocally rotatable in a circumferential direction thereof, while the second sleeve is formed on an inner peripheral surface thereof. The radially inwardly protruding portion enters a recess formed in the outer peripheral surface of the first half portion of the inserted shaft, and the shaft rotates in the circumferential direction inside the second sleeve. To prevent that,
The spring has a coil shape extending in the axial direction on the inner side of the shaft, and is fixed to the first half portion of the shaft so that the second vane is interposed via the shaft. A fixed end that is also fixed, and is attached to the first vane via a bracket that extends in the radial direction of the shaft and extends beyond the shaft in the second half portion of the shaft. A movable end that rotates in the same direction as the first blade when the one blade rotates,
When the movable end rotates in the same direction as the first blade, the spring is stored in the spring so as to return the movable end and the first blade to a state before the first blade is swung. The hinge according to claim 1, wherein   The recess formed in the outer peripheral surface of the first half portion of the shaft extends in the axial direction in the first half portion, and has a groove shape that is open at the tip of the first half portion. 2. The hinge according to claim 1, wherein when the shaft is inserted into the second sleeve, the protrusion of the second sleeve enters the concave portion of the groove shape from the tip of the first half portion.   The hinge according to claim 1 or 2, wherein the bracket is detachably formed with respect to the first blade.

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