JP2007032174A - Hinge with catching mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily obtain a flat hinge with a catching mechanism. <P>SOLUTION: First and second folding links 42, 44 have connection link arms 42B, 44B, respectively, which are arranged to overlap each other and are connected by a common pivotal axis 43P. Both ends of these folding links are pivoted by a mounting bracket 20 on a side of a case 1 and by a socket 30 on the door 3 side, respectively. The catching mechanism 14 comprises a cam 50 pivoted by the socket 30 and mounted on a free link arm 44F of the second folding link, and a cam follower 60 arranged in the socket 30 to be freely slidable and urged toward the cam 50. The cam follower 60 is engaged with a first cam surface 52 of the cam 50 at a closed position of the door 3, and with a second cam surface 52 of the cam 50 at an opened position of the door 3. When the cam follower 60 goes over a third cam surface 66 upon closing of the door 3, it moves into a stable state, being a state of engagement with the first cam surface 52. <P>COPYRIGHT: (C)2007,JPO&INPIT

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 opening it to a position substantially parallel to the front of the fixed object. The present invention relates to a hinge with a catch mechanism that can be suitably used to be mounted between a thin plate portion above and below a fixed object such as a plate and a bottom plate and a movable object corresponding thereto.

  A hinge is attached between the fixed object and the movable object to close the movable object such as the door in front of the fixed object such as the case and close it, or open it to a position almost parallel to the front of the fixed object. Some hinges include a catch mechanism that biases the movable object in the opening direction and / or the closing direction. When a movable object is closed to a fixed object, this type of hinge projects to the internal space of the case, which is a fixed object, so that the top plate and bottom plate of the case can be used effectively. It is required to attach the hinge to a thin plate portion having a relatively small vertical dimension.

  In the prior art, a hinge that is attached to a plate portion having a relatively small vertical dimension such as a top plate and a bottom plate of a case has been proposed (see Patent Document 1). The hinge includes a mounting bracket fixed to the top plate and the bottom plate of the case, and a substantially L-shaped advancing / retracting arm coupled to the mounting bracket by two link arms so as to horizontally move in the depth direction of the case. The free end, which is the L-shaped tip of this advance / retreat arm, is attached to the door via a cam mechanism.

  This hinge can be opened from the closed state while the door is guided by the cam mechanism with the advance / retract arm projecting out of the case and protruding from the case to the fully open state through 180 degrees. Yes, the door is closed after the reverse operation.

  However, with this structure, the mounting bracket, the advance / retreat arm, and the door are configured to pivot independently, so that when the door is opened and closed, all components are restrained from moving together. There was a drawback that the mechanism could not be installed.

Utility Model Registration No. 2565873

  The problem to be solved by the present invention is that the movable object can be attached in a flat state between the upper and lower parts of the fixed object such as the top plate or the bottom plate of the case and the movable object, and a catch mechanism is added. An object of the present invention is to provide a hinge with a catch mechanism that can be urged in an opening direction or a closing direction.

  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 an attachment bracket to be attached to the fixed object, a socket attached to the movable object, an attachment bracket, and a socket. A hinge mechanism including a link mechanism attached between the hinge body and a catch mechanism for biasing the hinge body in an opening direction and / or a closing direction of the movable object. Each of the first and second foldable links, the first and second foldable links including coupling link arms arranged to overlap each other and connected by a common pivot, respectively, Both ends of the second folding link are pivotally supported by the mounting bracket and the socket, respectively, and the catch mechanism is the second folding link. With catch mechanism characterized by consisting of a cam provided on the link arm on the socket side that constitutes a part and a cam follower that is slidably disposed in the socket and is spring-biased toward the cam To provide a hinge.

  In the problem-solving means of the present invention, the cam follower includes a holder having a long hole that passes through a retaining pin that crosses the socket, a follower body that is provided to face the cam at the tip of the holder, and the follower body that collides with the cam. It can consist of spring urging means for urging the holder to mate. The follower body may be attached to the holder separately from the holder, or may be integrated with the holder.

  The spring biasing means preferably comprises a spring disposed in the holder and pressed by a retaining pin.

  The cam includes a first cam surface that the cam follower engages at the closed position or the open position of the movable object, a second cam surface that 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 link mechanism is composed of first and second foldable links, and the first and second foldable links are arranged so as to overlap each other and are connected by a common pivot. Since each of the link arms is included, the first and second folding links can overlap each other to form a flat shape. Therefore, the upper and lower parts of the fixed object such as the top and bottom plates of the case and the movable object Can be installed in a flat state between.

  Further, the catch mechanism is provided between the socket-side link arm and the socket, which constitutes a part of the second folding link that is coupled to the first folding link by a common pivot. Therefore, the catch mechanism works to positively bias the hinge body in the opening direction and / or the closing direction of the movable object with respect to the fixed object, and can provide a catch function while maintaining the flat state of the hinge. it can.

  Further, the cam of the catch mechanism is provided on a socket-side link arm that constitutes a part of the second folding link, and the cam follower that engages with the cam is slidable in a socket attached to a movable object. Because it is 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.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 to FIG. 4 show the attachment state of the hinge 10 with a catch mechanism of the present invention, and FIG. 5 shows the hinge 10 with a catch mechanism of the present invention. 6 to 11 show a non-attached state of the hinge 10 with a catch mechanism of the present invention (a state where it is removed from the case or the door). The fully open state of the hinge 10 with catch mechanism is shown in FIGS. 1, 2 and 9 to 11, and the fully closed state of the hinge 10 with catch mechanism is shown in FIGS. 8 and a half-open state of the hinge 10 with the catch mechanism is shown in FIG.

  As shown in FIGS. 1 to 4, the hinge 10 with a catch mechanism of the present invention includes an opening 2 of a housing 1 that is an example of a fixed object and a door 3 that is an example of a movable object that is attached to the fixed object so as to be opened and closed. It is attached between.

  The hinge 10 with a catch mechanism includes a mounting bracket 20 attached in the recess 1UR on the opening 2 side of the top plate 1U2 of the housing 1, a socket 30 attached to the inner surface of the corresponding edge 3E of the door 3, and the mounting bracket 20 The hinge body 12 including the link mechanism 40 attached between the socket 30 and the hinge body 12 is attached to the door 3 in the opening direction or the closing direction when the hinge body 12 opens and closes the door 3. And a catching mechanism 14 for energizing.

  As shown in FIGS. 1 to 4, the mounting bracket 20 includes a side plate portion 20 </ b> T that is attached to the side surface of the recess 1 </ b> UR of the top plate 1 </ b> U of the housing 1 and a pair of upper and lower plates that are integrally formed horizontally from both sides. Set screw 20S (FIG. 2 thru | or FIG. 2 thru | or FIG. 2 thru | or FIG. 2) which consists of the part 20U and 20L and has a shape of a horizontal U shape as a whole, and penetrates the two screw through-holes 20H provided in the upper and lower board parts 20U and 20L. 4)).

  As shown in FIGS. 1 to 5, the socket 30 includes a vertical plate portion 30T and a pair of upper and lower plate portions 30U and 30L provided integrally horizontally on both sides of the vertical plate portion 30T. A set screw 30S (see FIG. 5) is stored in the recess 3R so that the plate portion 30T engages with the bottom surface of the recess 3R provided on the inner surface of the door 3, and penetrates through the screw holes 30H of the upper and lower plate portions 30U, 30L. 2 to 4) and is fixed to the inner surface of the door 3.

  The link mechanism 40 mounted between the mounting bracket 20 and the socket 30 comprises, in particular, as shown in FIGS. 2 and 10, two first and second sets of folding links 42, 44. And the second folding links 42 and 44 are connected to each other in the same manner as the connecting link arms 42B and 44B, which are arranged so as to be overlapped and meshed with each other and connected by a common pivot 43P. The link arms 42B and 4B are composed of free link arms 42F and 44F arranged so as to overlap and mesh with each other and pivotally supported by pivots 42P1 and 44P1, respectively. In the illustrated example, the coupling link arm 42B overlaps the inside of the coupling link arm 44B, and the free link arm 42F overlaps the outside of the coupling link arm 42B, and the free link arm 44F The first and second free link arms 42F and 44F are superposed inside the arm 44B, and the first and second links 42 and 44 are folded (see FIGS. 3 and 6 to 8). The second and first coupling link arms 44B and 42B are formed so as not to interfere with each other.

  Both ends of the first folding link 42 are pivotally supported by the mounting bracket 20 and the socket 30 (see FIGS. 2 and 10). More specifically, the free end of the free link arm 42F of the first folding link 42 is pivotally supported near the middle of the mounting bracket 20 by the pivot 42P2, and the free end of the coupling link arm 42B of the first link 42. Is pivotally supported in front of the socket 30 (on the side closer to the case 1) by a pivot 42P3.

  Similarly, both ends of the second folding link 44 are pivotally supported by the mounting bracket 20 and the socket 30, respectively (see FIGS. 2 and 10). Specifically, the free end of the free link arm 44F of the second link 44 is pivotally supported near the middle of the socket 30 by the pivot 44P3, and the free end of the coupling link arm 44B of the second folding link 44 is The pivot 44P2 pivotally supports the front of the mounting bracket 20 (on the side closer to the door 3).

  When the door 3 of FIGS. 3 and 6 to 8 is closed, the mounting bracket 20 and the socket 30 are arranged at right angles to each other. In this arrangement, as shown in FIG. Each of the folding links 42, 44 is folded in its link arms 42B, 42F and 44B, 44F so that the first folding link 42 is housed in the mounting bracket 20 and the second folding link 44 is folded. In the state, it is located between the mounting bracket 20 and the socket 30 at an angle. In this case, as can be seen from FIG. 7, the first fold link 42 and the second fold link 44 are overlapped inside and outside so as not to interfere with each other.

  When the door 3 of FIG. 4 is half open, the socket 30 is rotated 90 degrees counterclockwise from the closed position of FIG. 3 so that the mounting bracket 20 and the socket 30 are substantially aligned with respect to the mounting bracket 20. In this arrangement, both the first and second folding links 42, 44 are deployed with their link arm arms 42B, 42F and 44B, 44F slightly folded from the folded state. However, the first folding link 42 rises from the mounting bracket 20, and the second folding link 44 is in a position protruding from the opening of the top plate 2 to the outside of the case 1.

  1, 2, and 9 to 11, the socket 30 is further rotated 90 ° counterclockwise from the half-open position of FIG. 4 to 270 ° with respect to the mounting bracket 20. In this arrangement, both the first and second folding links 42 and 44 have their link arm arms 42B, 42F and 44B, 44F further expanded from the state of FIG. 4 to approximately 90 degrees. While unfolding, the first folding link 42 moves so as to project further out of the case 1 from the position of FIG. 4, while the second link 44 moves away from the socket 30 in response to the opening of the door 3. Move relatively.

  As shown in FIGS. 10 and 11, the catch mechanism 14 is a cam provided at the tip of a free link arm 44 </ b> F that is pivotally supported by the socket 30 and forms a part of the second folding link 44 of the link mechanism 40. 50 and a cam follower 60 that is slidably disposed in the socket 30 and is spring-biased toward the cam 50 (see FIGS. 2 to 4, 7, 10, and 11).

  In the illustrated form, the cam 50 is attached to the link arm 44F by appropriate means so as to be integrated with the tip of the free link arm 44F of the second link 44, as shown in FIG. The cam 50 is recessed at the closed position of the door 3 (see FIG. 3) so that the cam follower 60 engages in a stable state, and at the open position of the door 3 (see FIG. 10). A substantially flat second cam surface 54 with which the cam follower 60 engages in an unstable state between the first and second cam surfaces 52, 54. (See FIG. 12).

  As can be seen from FIGS. 2 and 7, these cam surfaces 52, 54 and 56 are formed around the axis of rotation 44P3 which pivotally supports the free link arm 44F of the second link 44 to the socket 30. Yes.

  As shown in FIGS. 2 to 4, 7, and 10, the cam follower 60 has long holes 62 </ b> H <b> 1 and 62 </ b> H <b> 2 through which two retaining pins 30 </ b> P <b> 1 and 30 </ b> P <b> 2 that cross the upper and lower plate portions 30 </ b> U and 30 </ b> L of the socket 30 pass. 13 (see FIG. 13), a follower body 64 in the form of a roller rotatably supported at the tip of the holder 62 by a rotating shaft 64S, and the follower body 64 against the cam surfaces 52, 54, and 56. It comprises spring urging means 66 for urging the holder 62 so as to match.

  The spring biasing means 66 comprises a spring 70 in the form of a coil spring that is disposed in the holder 62 and pressed by the retaining pin 30P2. In the illustrated embodiment, the spring 70 is disposed in a spring accommodating groove 62G (see FIG. 13) of the holder 62. The spring 70 is compressed by the rear retaining pin 30 </ b> P <b> 2 and urges 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 link arms 42 and 44, or may be made of a resin that slides well. The holder 62 and the follower body 64 of the cam follower 60 are made of a resin that slides well. Are preferably made from these materials.

  When the operation of the hinge 10 with the catch mechanism is described, as described above, in the state where the door 3 closes the opening 2 of the housing 1, as shown in FIG. The first folding link 42 is accommodated in the mounting bracket 20 in a state in which the folding links 42 and 44 of the first and second folding links 42 and 44 are folded, and the second folding link 44 is disposed between the housing 1 and the door 3 (with the mounting bracket 20 and (Between the socket 30) and the slanted position. At this time, as shown in FIGS. 3 and 7, 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. ing.

  Next, when the door 3 is opened from this state, the link mechanism 40 of the hinge body 12 has the first and second folding links 42 and 44 as pivots 43P, 42P1 to 42P3, 44P1 to 44P3, as already described. As shown in FIG. 4, when the link movement is performed and the first and second folding links 42 and 44 are unfolded from the top plate 1U of the case 1 and the door 3 is fully opened, As shown in FIGS. 1, 2 and 9 to 11, 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. Note that the cam follower 60 is engaged with the unstable third cam surface 56 of the cam 50 between the position where the door 3 is completely closed and the position where the door 3 is fully opened. However, a stable cam surface may be formed so as to be stably maintained at the half-open position in FIG.

  When the door 3 is closed again from the position where the door 3 of FIGS. 1, 2 and 9 to 11 is completely opened, the first and second folding links 42 and 44 of the link mechanism 40 of the hinge body 12 are moved to the door 3. The first folding link 42 enters the mounting bracket 20 while being folded, and the second folding link 44 is also folded while entering the top plate 1U of the case 1 by performing a link movement in a direction opposite to the opening direction. When the door 3 is completely closed, the door 3 is positioned obliquely between the mounting bracket 20 and the socket 30. At this time, since the cam 50 of the catch mechanism 14 is provided on the free link arm 44F of the second link 44, the cam follower 60 abutting on the first cam surface 52 in the process of closing the door 3. Moves along the third cam surface 56 of the cam 50 while retracting against the spring 70, and when the door 3 is in the fully closed position, the spring 70 causes the second folding link 44 and the pivot 43P to The first folding link 42 coupled to the second folding link 44 is driven to be folded, and is urged to close the door 3 in FIG.

  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.

  Thus, since the first and second links 42 and 44 are configured to be able to overlap each other, the hinge is formed to be flat by reducing the axial distance between the pivots of the link mechanism. Therefore, it can be seen that this hinge can be attached to a small portion of the fixed object, such as the top plate and the bottom plate of the case, and the volume within the fixed object is not restricted.

  In addition, since the first and second folding links 42 and 44 are coupled to each other, the catch mechanism 14 is provided between the second folding link 44 and the socket 30 so as to be movable with the case 1 that is a fixed object. The open / closed state of the door 3 with respect to the case 1 can be maintained with the door 3 that is an object, and a flat hinge with a catch mechanism can be easily obtained.

  Further, the catch mechanism 14 is provided on a free link arm 44F that forms a part of the second link 44 with the cam 50 pivotally supported by the socket 30, and a cam follower 60 that engages with the cam 50 is provided in the socket 30. It can be seen that the cam follower 60 only moves linearly within the socket 30 because it is slidably disposed on and is spring biased toward the cam 50.

  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.

  In the above embodiment, the hinge body 12 is urged in the direction of closing the door 3 and the follower body 64 of the cam follower 60 is separate from the holder 62 and is attached to the holder 62 by the rotation shaft 44P3. The follower body 64 may be formed integrally with the holder 62.

  Further, in the above embodiment, the catch mechanism 14 stably holds the cam 3 and the cam follower 60 in a state in which the door 3 is closed while the door 3 is closed. The hinge body 12 may be urged in the direction in which the door 3 is opened, or may be urged in both the direction in which the door 3 is closed and the direction in which the door 3 is opened.

  According to the present invention, the hinge can be formed flat and attached to the upper and lower thin plates of the fixed object, and even the flat hinge can be provided with a catch mechanism. The inner space of the case attached to the bottom plate or the like is not restricted by the hinge with the catch mechanism, the inner space of the case can be used effectively, and the usability of the hinge with the catch mechanism can be improved.

It is a perspective view which shows the state which attached the hinge with a catch mechanism assembled by one form of this invention between a door and a housing | casing, and opened the door completely. It is a horizontal sectional view of the hinge with a catch mechanism of FIG. FIG. 2 is a horizontal sectional view of the hinge with a catch mechanism of FIG. 1 in a completely closed state. It is a horizontal sectional view of the half open state of the hinge with a catch mechanism of FIG. It is the disassembled perspective view which abbreviate | omitted the housing | casing and door of the hinge with a catch mechanism of FIG. FIG. 2 is a side view of the hinge with a catch mechanism of FIG. 1 in a completely closed state in which a housing and a door are omitted. 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. It is a side view of the fully open state of the hinge with a catch mechanism of FIG. 1 which abbreviate | omitted the housing | casing and the door. FIG. 10 is a cross-sectional view of the hinge with a catch mechanism in the same state as FIG. 9. It is the same state as FIG.9 and FIG.10, but is a perspective view of a hinge with a catch mechanism. The free link arm for the 2nd folding links with a cam used for the hinge with a catch mechanism of the present invention is shown, the figure (A) is the assembly perspective view, and the figure (B) is the decomposition perspective view. . It is an expansion perspective view of the holder of the catch mechanism used for the hinge with a catch mechanism of the present invention.

Explanation of symbols

1 Housing (fixed object)
1U Top plate 1UR Recess 2 Opening 2R Recess 3 Door (movable object)
3R recess 10 hinge with catch mechanism 12 hinge body 14 catch mechanism 20 mounting bracket 20T side plate 20U, 20L top and bottom plate 20H screw hole 30 socket 30T side plate 30H screw hole 30U, 30L top and bottom plate 30P1, 30P2 retaining pin 40 link mechanism 42 first folding link 42B coupling link arm 42F free link arm 42P1 to 42P3 pivot 43P pivot 44 second folding link 44B coupling link arm 44F free link arm 44P1 to 44P3 pivot 50 cam 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 64S Rotating shaft
66 Spring urging means 70 Spring

Claims (5)

  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. Each of the first and second folding links, the first and second folding links including coupling link arms arranged to overlap each other and coupled by a common pivot axis, respectively. Both ends of the second folding link are pivotally supported by the mounting bracket and the socket, respectively. 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.   3. The hinge with a catch mechanism according to claim 2, wherein the spring urging means comprises a spring disposed in the holder and pressed by the retaining pin.   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 engaged with the cam follower at a position or a closed position, and a third cam surface engaged with 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.

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