JP2006037348A - Hinge with catch mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the design and assembly of a hinge with a catch mechanism. <P>SOLUTION: The catch mechanism 14 energizing a door 3 in a closing direction when a hinge body 12 closes the door 3 comprises a cam 50 formed on the third link arm 46 of a link mechanism while being pivoted on a socket 30 fitted to the door 3 and a cam follower 60 slidably disposed in the socket 30 and energized by a spring toward the cam 50. When the door 3 is closed, the cam follower 60 is engaged with a recessed first cam face 52 of the cam 50, and when the door 3 is open, it is engaged with the second cam face 52 of the cam 50. When the cam follower 60 rides over a sharp third cam face 66 when the door 3 is closed, the door 3 is moved to a stable state where the cam follower 60 is engaged with the first cam face 52. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hinge with a catch mechanism used for closing a movable object such as a door in front of a fixed object such as a case and closing it to a position substantially parallel to the front of the fixed object. The present invention relates to an improved hinge with a catch mechanism.

  A hinge that closes and moves a movable object such as a door in front of a fixed object such as a case or opens to a position substantially parallel to the front of the fixed object is a link mechanism of the hinge when the movable object is opened and closed. Some have a catch mechanism that biases the movable object in the opening direction or the closing direction.

The catch mechanism of the prior art is pivotally supported by a cam surface formed on the outer peripheral surface of the bearing portion of the link mechanism on the bottom surface of a socket that is attached to a movable object such as a door and supports the link mechanism of the hinge, and this bearing portion. It consists of a pressing member that is arranged in one link arm of the link mechanism and is spring-biased toward the cam surface (see Patent Document 1).

  However, with this structure, the pressing member rotates around the rotation axis of the link arm together with the link arm that holds the pressing member, so that the pressing member follows the rotational movement of the link arm and the cam surface. In addition to having a large and complicated movement with advancing and retreating movements, the movement of the link arm is restricted by the movement of the pressing member, so that the design is complicated and troublesome, and the degree of freedom in designing is small.

JP 2003-184407 A

  The problem to be solved by the present invention is to provide a hinge with a catch mechanism that is simple in movement following the cam and that is less restricted in movement of the link arm and that is easy to design.

  The present invention is provided between a fixed object and a movable object attached to the fixed object so as to be openable and closable, and includes a mounting bracket to be attached to the fixed object, a socket attached to the movable object, and the mounting bracket and the socket. And a catch mechanism for urging the hinge body in the opening direction and / or the closing direction of the movable object when the movable object is opened and closed In the problem-solving means of the present invention, the catch mechanism is slidably disposed within a socket and a cam provided on a link arm that is pivotally supported by the socket and forms a part of the link mechanism. The cam follower is spring-biased toward the cam.

  In the problem-solving means of the present invention, the cam follower includes a holder having a long hole penetrating the retaining pin that crosses the socket, a follower body provided so as to face the cam at the tip of the holder, and the follower body collide with the cam. Thus, it can be composed of spring biasing means for biasing the holder. The follower body may be attached to the holder separately from the holder, or may be integrated with the holder.

  The spring biasing means is preferably composed of at least one spring disposed in the holder and pressed by a retaining pin. The spring biasing means is provided in parallel according to the mass of the movable object. It may consist of a plurality of springs.

  On the other hand, the cam has a first cam surface with which the cam follower engages at the closed position or the open position of the movable object, a second cam surface with which the cam follower engages at the open position or the closed position of the movable object, and the first cam surface. It can be set as the form which consists of the 3rd cam surface which a cam follower engages in an unstable state between 2nd cam surfaces. The cam is preferably formed integrally with a link arm provided with the cam, but may be attached to the link arm separately from the link arm.

  According to the present invention, the cam of the catch mechanism is provided on the link arm that is pivotally supported by the socket and forms a part of the link mechanism, and the cam follower that engages with the cam is in the socket attached to the movable object. Since it is slidably arranged and spring-biased towards the cam, the cam follower only moves linearly within the socket, so the movement of the catch mechanism is simple and the structure is simple.

  In particular, since the cam follower of the catch mechanism only needs to be assembled into the socket by using a socket which is an attachment member on the movable object side of the hinge, the cam follower can be easily assembled.

  Further, the link mechanism can be freely designed without being restricted by the movement of the cam follower, and the design and assembly of the entire hinge is easy.

  The embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1 to 3 show the closed state of the hinge 10 with a catch mechanism of the present invention, and FIGS. The state where the hinge 10 with the catch mechanism is opened is shown, and the disassembled state of the hinge 10 with the catch mechanism is shown in FIG.

  The hinge 10 with a catch mechanism of the present invention includes, for example, an opening 2 of a housing 1 that is an example of a fixed object and a movable object that can be freely opened and closed attached to the fixed object, as shown in FIGS. It is attached between the door 3 which is an example.

  The catch mechanism-equipped hinge 10 is attached between the mounting bracket 20 attached to the inner surface of the side wall 2W on the opening 2 side of the housing 1, the socket 30 attached to the inner surface of the door 3, and the mounting bracket 20 and the socket 30. And a catch mechanism 14 for biasing the hinge body 12 in the opening or closing direction of the door 3 when the hinge body 12 opens and closes the door 3. Yes.

  As shown in FIGS. 4, 5, and 9, the mounting bracket 20 includes a flat plate portion 20 </ b> T that is attached to the bottom surface of the recess 2 </ b> R of the side wall 2 of the housing 1 and a side plate portion 20 </ b> S that is integrally formed vertically on both sides thereof. 20S ', which has an overall inverted U-shape, and is fixed to the housing 1 by a set screw (not shown) penetrating through two screw through holes 20TH provided in the flat plate portion 20T.

  As shown in FIGS. 1, 3, 8, and 9, the socket 30 has a flat plate portion 30T and a pair of side plate portions 30S, 30S ′ and a side plate that are integrally provided vertically on both sides of the flat plate portion T. It consists of a pair of flanges 30F, 30F 'formed integrally horizontally on both sides from the portions 30S, 30S', and the flat plate portion 30T is engaged with the bottom surface of the recess 3R provided on the inner surface of the door 3 The whole except 30F and 30F ′ is housed in the recess 3R, and is fixed to the inner surface of the door 3 by a set screw (not shown) that passes through the screw holes 30FH and 30F′H of the flanges 30F and 30F ′.

  The link mechanism 40 mounted between the mounting bracket 20 and the socket 30 includes first to third link arms 42, 44, 46, and the first link arm 42 is slidably supported on the mounting bracket 20. The side plate portions 30S and 30S ′ of the socket 30 have the tip bent pivot portions 42P1 pivotally supported by the tip lower pivot portions 30SP1 and 30S′P1, and the second link arm 44 is the first link arm 42. The intermediate link portion 42P2 and the side plate portions 20S and 20S 'of the mounting bracket 20 have pivot portions 44P1 and 44P2 that are pivotally supported by the tip pivot portions 20SP and 20S'P, respectively. 2 of the link arm 44 at the distal end and the intermediate pivots 30SP2 and 30S′P2 of the side plates 30S and 30S ′ of the socket 30 respectively. Both ends pivotally supported portions 46P1 and 46P2 are supported.

  The pivots 42P1, 42P2, 44P1, 44P2, 44P3, 46P1, 46P2 of the link arms 42, 44, 46 and the pivots 20SP, 20S′P of the mounting bracket 20 and the pivots 30SP1, 30S′P1, 30SP2, of the socket 30 30S'P2 has pin through holes, pins 48P1 to 48P5 are respectively inserted into the pin through holes of the pivots, and the pivots are pinned to each other to link the link arms 42, 44 and 46 to each other. It is pivotably connected to.

  As shown in FIGS. 3, 8, and 9, the slidable first link arm 42 has a pin through hole 42P3 provided at the rear end thereof, and slides through the pin through hole 42P3. A guide pin 48P6 is attached, and the slide guide pin 48P6 is engaged with the arc-shaped grooves 20SG and 20S′G of the side plate portions 20S and 20S ′ of the mounting bracket 20, and the first link arm 42 is The sliding guide pin 48P6 slides while being guided by the arc-shaped grooves 20SG and 20S′G.

  When the door 3 of FIGS. 1 to 3 is closed, the mounting bracket 20 and the socket 30 are arranged at right angles to each other, and in this arrangement, the first link arm 42 is housed in the mounting bracket 20 and the first The second and third link arms 44 and 46 are obliquely positioned between the mounting bracket 20 and the socket 30 in a state of being folded so as to overlap each other.

  4 to 8, the socket 30 is rotated 180 ° counterclockwise in FIG. 1 from the closed position and disposed at a position of 270 ° with respect to the mounting bracket 20 (FIG. 4). In this arrangement (measured counterclockwise in FIG. 8), the first link arm 42 extends out of the mounting bracket 20 and the second and third link arms 44, 46 are perpendicular to each other. The first link arm 42 pivots to a position perpendicular to the socket 30 to allow the door 3 to open to a position 180 ° with respect to the opening 3 of the housing 1. In this case, as can be seen from FIG. 4, the right angle state of the first link arm 42 and the socket 30 and the right angle state of the second and third link arms 44 and 46 overlap each other and interfere with each other. There is no such thing.

  The catch mechanism 14 is slidably disposed in the socket 30 and a cam 50 (see FIG. 10) provided on a third link arm 46 that is pivotally supported by the socket 30 and forms a part of the link mechanism 40. The cam follower 60 is biased toward the cam 50 (see FIG. 11).

  In the illustrated embodiment, the cam 50 is formed integrally with the third link arm 46, and the cam 50 is recessed so that the cam follower 60 is stably engaged in the closed position of the door 3. Between the surface 52 (see FIG. 2) and the second circumferential cam surface 54 (see FIG. 7) with which the cam follower 60 engages at the open position of the door 3, and between these first and second cam surfaces. The cam follower 60 includes an acute-angled third cam surface 56 that is engaged in an unstable state.

  As can be seen from FIGS. 2 and 7, the cam surfaces 52, 54, and 56 are such that the third link arm 46 pivots on the distal bent pivots 30 </ b> S and 30 </ b> S′P <b> 1 of the side plates 30 </ b> S and 30 </ b> S ′ of the socket 30. The supporting pin 48P5 is formed as a rotation axis.

  As shown in FIGS. 2, 7 and 9, the cam follower 60 includes holders 62 each having a long hole 62H1 and 62H2 penetrating through two retaining pins 48P7 and 48P8 that cross the side plate portions 30S and 30S ′ of the socket 30. The holder main body 64 in the form of a roller rotatably attached to a shaft support 64B at the tip of the holder 62 and the holder 62 so that the follower main body 64 abuts the cam surfaces 52, 54, and 56. And spring urging means 66 for urging.

  The spring biasing means 66 includes at least one spring 70 disposed in the holder 62 and pressed by the retaining pin 48P8. In the illustrated form, three coil springs 70 are respectively positioned in the spring accommodating grooves 62 </ b> G of the holder 62. In FIG. 9, only two coil springs 70 are shown. However, as can be seen from FIG. 3, in reality, each of the three spring accommodating grooves 62G has one coil spring 70, that is, a total of three coils. A spring 70 is accommodated. The number of springs 70 is determined according to the mass of the movable object that is the door 3. As shown in FIGS. 2 and 7, these springs 70 are compressed by a rear retaining pin 48 </ b> P <b> 8 to urge the holder 62, that is, the follower body (roller) 64 toward the cam 50.

  The cam 50 of the catch mechanism 14 may be made of metal as in the case of the other link arms 42 and 44, or may be made of a resin having good sliding property. Also, the holder 62 and the follower body 64 of the cam follower 60 have good sliding property. It is preferably made from a resin or other material.

  The operation of the hinge 10 with the catch mechanism will be described. As described above, when the door 3 closes the opening 2 of the housing 1, the link mechanism 40 is folded as shown in FIGS. In this state, it is diagonally positioned between the housing 1 and the door 3 (between the mounting bracket 20 and the socket 30). At this time, as shown in FIG. 2, the cam follower 60 of the catch mechanism 14 abuts on the first cam surface 52 of the cam 50, so that the link mechanism 40 stably maintains the folded state.

  Next, when the door 3 is opened from this state, the link mechanism 40 of the hinge main body 12 causes the first to third link arms 42, 44, and 46 to link with each other at the pivots as described above. As shown in FIGS. 4 to 8, the first link arms 42 are slid out of the mounting bracket 20 and try to deploy so as to overlap with the right and left directions of the second and third link arms 44 and 46. When the door 3 is fully opened, the cam follower 60 of the catch mechanism 14 is engaged with the second cam surface 54 of the cam 50 and the door 3 is kept open as shown in FIGS. is doing.

  When the door 3 is closed again from this state, the first to third link arms 42, 44 and 46 of the link mechanism 40 of the hinge main body 12 are linked to each other in a direction opposite to the direction in which the door is opened at the pivot. As shown in FIGS. 1 to 3, the second and third link arms 44 and 46 are folded while the first link arm 42 slides into the mounting bracket 20. At this time, since the cam 50 of the catch mechanism 14 is provided on the third link arm 46, the cam follower 60 that abuts the first cam surface 52 in the process of closing the door 3 has a spring 70. 1, when rotating over the sharp third cam surface 56 of the cam 50, the link mechanism 40 is driven to fold in the direction in which the door 3 is rapidly closed. The door 3 in FIG. 3 is biased to a closed state.

  In particular, when the holder 62 and the follower main body 64 of the cam follower 60 are made of a resin having a good sliding property, the movement when the holder 62 slides in the socket 30 and the movement when the follower main body 64 follows the cam 50 are smooth. Since it is performed, the operation of the catch mechanism 14 can be made smooth and the door 3 can be opened and closed in a buffer manner.

  The angular position at which the cam follower 60 is urged in the direction of rapidly closing the door 3 over the third cam surface 46 is, for example, a position where the door 3 is closed to about 30 ° with respect to the opening of the housing 1. Although it is set, the catch mechanism 14 may work at other angular positions.

  In this way, the cam 50 of the catch mechanism 14 is pivotally supported by the socket 30 and provided on the link arm 46 constituting a part of the link mechanism 40, and the cam follower 60 that engages with the cam 50 slides in the socket 30. It can be seen that the cam follower 60 only moves linearly within the socket 30 when freely positioned and spring biased toward the cam 50.

  Therefore, the movement of the catch mechanism 14 is simplified, and in particular, the link movement of the link mechanism can be freely set without being restricted by the movement of the catch mechanism 14, so that the hinge can be easily assembled. Can be designed as

  Further, since the cam follower 60 can be assembled simply by being inserted into the socket 30 using the socket 30 of the hinge 10, the cam follower 60 can be easily assembled.

  Another form of the present invention in which the third link arm 46 and the cam 50 are modified is shown in FIG. 12, and in this form of FIG. 12, the cam 50 is formed separately from the link arm 46. The cam 50 is disposed so as to enter a space formed by a pair of side pieces 46A and 46A 'and a flat plate portion 46B connecting the side pieces 46A and 46A' to the link arm. The arm 46 is attached to the link arm 46 by pins 48P4 and 48P1 that pivotally support the second link arm 44 and the socket 30. In FIG. 12, reference numerals 50H1 and 50H2 denote pin holes through which the pins 48P4 and 48P1 pass.

  In the above embodiment, the follower body 64 of the cam follower 60 is separate from the holder 62 and is attached to the shaft support portion 62B of the holder 62. However, the follower main love 64 is formed integrally with the holder 62. It may be.

  Further, in the above embodiment, the catch mechanism 14 is stable in a state in which the cam 50 and the cam follower 60 urge the hinge body 12 in the direction in which the door 3 is closed while the door 3 is being closed and the door 3 is closed. Although it is held, the hinge body 12 may be urged in the direction of opening the door 3 in the movement of opening the door 3, or may be urged in both the closing direction and the opening direction of the door 3. .

  According to the present invention, the cam of the catch mechanism is pivotally supported by the socket and provided on the link arm constituting a part of the link mechanism, and the cam follower to be engaged with the cam is slidably disposed in the socket. The cam follower only moves linearly in the socket, thus simplifying its movement and simplifying the structure, as well as facilitating the assembly of the cam follower. Improve the usability of the hinge with mechanism.

It is a side view which shows the hinge with a catch mechanism assembled by one form of this invention in a door closed state by making a door and a housing | casing into a cross section. It is sectional drawing which abbreviate | omits and shows the door and housing | casing of the hinge with a catch mechanism of FIG. It is the same as FIG. 2, but is a perspective view of a hinge with a catch mechanism. It is sectional drawing of the door open state of the hinge with a catch mechanism of FIG. FIG. 5 is a perspective view of the hinge with a catch mechanism in the same state as FIG. 4. FIG. 6 is a side view of the hinge with a catch mechanism in the same state as FIGS. 4 and 5, but omitting the door and the housing. FIG. 7 is a cross-sectional view of the hinge with a catch mechanism in the same state as FIG. 6. FIG. 8 is a perspective view of the hinge with a catch mechanism in the same state as in FIGS. 6 and 7. 1 to FIG. 8 is an exploded perspective view of a hinge with a catch mechanism. It is an expansion perspective view of the 3rd link arm (cam of a catch mechanism) of a link mechanism used for the present invention. It is an expansion perspective view of the kaam follower of the catch mechanism used for the present invention. It is a disassembled perspective view of the hinge with a catch mechanism by the other form of this invention.

Explanation of symbols

1 Housing (fixed object)
2 Opening 2R Concavity 2W Side wall 3 Door (movable object)
3R concave portion 10 hinge with catch mechanism 12 hinge body 14 catch mechanism 20 mounting bracket 20T flat plate portion 20S, 20S ′ side plate portion 20SG, 20S′G arcuate groove 20SP, 20S′P tip pivot portion 20TH screw through hole 30 socket 30T flat plate portion 30S, 30S ′ side plate portion 30F, 30F ′ 鍔 30FH, 30F′H screw hole 30SP1, 30S′P1 tip lower pivot portion 30SP2, 30S′P2 intermediate pivot portion 40 link mechanism 42 first link arm 42P1 tip bending pivot portion 42P2 Intermediate pivot part 42P3 Pin through hole 44 Second link arm 44P1, 44P2 Pivot part 44P3 Tip bent pivot part 46 Third link arm 46P1, 46P2 Both end pivot part 48P1 to 48P5 Pin 48P6 Sliding guide pins 48P7, 48P8 Stop 50 Cam 50H1, 50H2 Pin hole 52 First cam surface 54 Second cam surface 56 Third cam surface 60 Cam follower 62 Holder 62G Spring accommodating groove 62H1, 62H2 Long hole 64 Follower body 64B Shaft support 66 Spring bias Means 70 Spring

Claims (6)

  Provided between a fixed object and a movable object attached to the fixed object so as to be openable and closable, and comprising an attachment bracket to be attached to the fixed object, a socket attached to the movable object, and the attachment bracket and the socket. A hinge with a catch mechanism comprising a hinge body including a link mechanism attached therebetween and a catch mechanism for urging the hinge body in an opening direction and / or a closing direction of a movable object, wherein the catch mechanism includes the socket And a cam follower which is slidably disposed in the socket and is spring-biased toward the cam. A hinge with a catch mechanism.   2. The hinge with a catch mechanism according to claim 1, wherein the cam follower is provided with a holder having a long hole penetrating a retaining pin that crosses the socket and a tip of the holder so as to face the cam. A hinge with a catch mechanism, characterized by comprising a main body and a spring urging means for urging the holder so that the follower main body abuts the cam.   The hinge with a catch mechanism according to claim 2, wherein the spring biasing means includes at least one spring disposed in the holder and pressed by the retaining pin. With hinge.   The hinge with a catch mechanism according to any one of claims 1 to 3, wherein the cam includes a first cam surface to which the cam follower engages at a closed position or an open position of the movable object, and an opening of the movable object. A second cam surface that engages the cam follower at a position or an open position, and a third cam surface that engages the cam follower in an unstable state between the first and second cam surfaces. A hinge with a catch mechanism.   The hinge with a catch mechanism according to any one of claims 1 to 4, wherein the first cam is formed integrally with the link arm.   The hinge with a catch mechanism according to any one of claims 1 to 4, wherein the cam is formed separately from the link arm and attached to the link arm. .

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