JP2009150116A - Hinge device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the pivotally supporting part of the link arm of a hinge device, which openably/closably supports a door, from being deformed and damaged by the weight of the door. <P>SOLUTION: This hinge device comprises first and second mounting members 20, 30 mounted on the door 3 and a casing 2, respectively, and two arms 42, 44 of the link arm 40 pivotally supported between the mounting members 20, 30. The first and second mounting members 20, 30 are overlapped with each other at a position where the door 3 is closed to the casing 2. At a position where the door 3 is opened from the casing 2, the overlapping of the second mounting member 30 is released from the first mounting member 20 and the second mounting member is expanded. The first mounting member 20 comprises a reinforcing extension piece 24E which is so overlapped with the pivotally supporting parts of the link arm 40 and the second mounting member 3 as to support the door 3 from the underside and which reinforces the link arm 40. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a hinge device that supports a door so that it can be opened and closed. More specifically, the hinge device includes two attachment members that overlap each other when the door is closed and expand when the door is fully open. It is about improvement.

  This type of hinge device includes a first mounting member to be attached to the housing, a second mounting member to be attached to the door, and a link arm that pivotally supports the first and second mounting members. The two mounting members are displaced between a position folded and overlapped with the first mounting member via the link arm and a position developed from the first mounting member, so that the door is supported by the casing so as to be opened and closed. (See Patent Document 1).

  The first and second attachment members usually overlap each other at the door closed position, but each has a U-shaped overlapping portion where the polymerization is removed at the door open position.

  As described above, when the first and second mounting members are removed from the overlapping and deployed at the open position of the door, the door is supported by the housing via the link arm, so the link arm is used as the second mounting member. The weight of the door is added to the pivot shaft that pivots, the bearing shaft of this pivot shaft and this pivot shaft are deformed, and the door hangs down against the housing, so the door can be closed and opened correctly in the housing. There was a drawback that could not be done.

JP 2004-108098 A

  The problem to be solved by the present invention is to provide a hinge device that can effectively prevent deformation of the pivot shaft and the bearing hole of the link arm and prevent the door from drooping, and can correctly open and close the door with respect to the housing. It is to provide.

  The problem-solving means of the present invention comprises a first attachment member to be attached to the housing, a second attachment member to be attached to the door, and a link arm that pivotally supports the first and second attachment members. The second mounting member is a hinge configured to displace between a position folded on the first mounting member via the link arm and a position developed from the first mounting member to support the door so that the door can be opened and closed. In the apparatus, the first mounting member has a reinforcing extension piece that supports the load of the door, and the reinforcing extension piece has a clearance groove that allows displacement of a pivot shaft on which the link arm pivots on the second mounting member. It is in providing the hinge apparatus characterized by the above.

  In the problem-solving means of the present invention, the first and second mounting members have a U-shaped overlapping portion that overlaps with each other in the folded state, and the reinforcing extension piece extends from the U-shaped overlapping portion of the first mounting member. It can be set as a form.

  According to the present invention, since the first mounting member has the reinforcing extension piece that supports the load of the door, the link arm can effectively prevent deformation of the pivot shaft and the bearing hole that pivotally support the second mounting member. Therefore, the hinge device is not damaged, and the door can be correctly opened and closed with respect to the housing.

  A cabinet 1 using a hinge device 10 according to a preferred embodiment of the present invention is shown in FIG. 1, and the cabinet 1 includes a housing 2 and a door 3, and the hinge device 10 includes a door 3 and a housing 2. It is attached to the cabinet 1 so that it can be freely opened and closed.

  As shown in FIGS. 2 and 3, the hinge device 10 is attached to the upper and lower sides of the cabinet 1, and the upper and lower hinge devices 10 have the same structure except that they are formed vertically symmetrical. Therefore, only the lower hinge device 10 will be described below.

  The hinge device 10 includes a first attachment member 20 to be attached to the housing 2, a second attachment member 30 to be attached to the door 3, and a link that pivotally supports the first and second attachment members 20 and 30. It consists of an arm 40.

  As shown in FIG. 4 (showing the upper hinge device 10) and FIG. 5 (showing the lower hinge device 10), the first mounting member 20 is formed integrally with the mounting plate portion 22 and the mounting plate portion 22. And the overlapping portion 24 to be overlapped with the second mounting member 30 at the closed position of the door 3. The overlapping portion 24 is shown to be U-shaped in the illustrated form.

  As shown in FIGS. 4 and 5, the second attachment member 30 is also formed integrally with the attachment plate portion 32 and the attachment plate portion 32 and overlaps with the overlapping portion 24 of the second attachment member 20 at the closed position of the door 3. And a superposed portion 34 to be formed. The overlapping portion 34 is shown to be U-shaped in the illustrated form.

  The first attachment member 20 is screwed to the top plate (upper hinge device) and the bottom plate (lower hinge device) of the housing 2 so that the overlapping portion 24 enters the recess 3R of the door 3. The second mounting member 30 is attached to the door 3 by engaging with the recess 3R of the door 3 and screwing the bent portion 36 to the inner surface of the door 3 through the opening of the recess 3R. Yes.

  In the illustrated form, the overlap portion 34 of the second attachment member 30 is formed to overlap the outside of the overlap portion 24 of the first attachment member 20 at the closed position of the door 3. The overlapping portion 24 of the member 20 may be formed to overlap the overlapping portion 34 of the second mounting member 30.

  As shown in FIGS. 4 and 5, the link arm 40 includes two arms 42 and 44, but the number of arms may be one or three or more. One arm 42 is plate-shaped, while the other arm 44 is shown to be U-shaped that can overlap the arm 42, but both can be flat if they can overlap each other. Or U-shape.

  One end of each of the link arms 42 and 44 is pivotally supported on the overlapping portion 24 of the first mounting member 20 by pin-shaped pivot shafts 42SA and 44SA, respectively, and the other end is respectively pin-shaped pivot shaft 42SB and 44SB. Is pivotally supported by an extension piece 34 </ b> E extending from the overlapping portion 34 of the second mounting member 30.

  As shown in FIG. 8 (F), the arm 44 of the link arm 40 has a stepped portion 44S that abuts against the side wall edge 24e of the overlapping portion 24 of the first mounting member 20 in the course of the displacement, and the other side. The pivot shaft 42SB engages with the arm 42 on the side facing the arm 42 and has a recess 44R that holds the fully open position of the door 3. The functions of the step 44S and the recess 44R are the details of the hinge device 10 of the present invention. It will be described later together with various operations.

  When the door 3 is closed, the hinge device 10 is positioned so that the two arms 42 and 44 of the link arm 40 are substantially parallel, as shown in FIGS. 6 and 11A. When the door 3 is fully opened, the overlapping portion 34 of FIG. 6 overlaps with the overlapping portion 24 of the first mounting member 20 (see FIG. 6D and FIG. 6F in particular). ), The overlapping portion 34 of the second mounting member 30 is deployed from the overlapping portion 24 of the first mounting member 20 so that the two arms 42 and 44 of the link arm 40 are positioned so as to intersect substantially in a T shape. 10 (D) and FIG. 10 (E) in particular, and between the closed position and the fully opened position of the door 3, FIGS. 7, 8, 9 and 11B to 11D. As shown in FIG. 4, the two arms 42 and 44 of the link arm 40 are displaced while the relative positions are displaced. Overlapped portion 34 of the mounting member 30 is turned away gradually from the polymerization section 24 of the first mounting member 20.

  The hinge device 10 according to the present invention is a reinforcement that overlaps with the pivot of the link arm 40 and the second mounting member 30 so as to support the load on the door, in the illustrated form, the load applied to the link arm 40 and the second mounting member 30. The reinforcing extension piece 24E has an extension piece 24E, and has a clearance groove 24G that allows displacement of the pivot shafts 42SB and 44SB on which the link arm 40 pivots on the second mounting member 30. 3B and 4B, the reinforcing extension piece 24E has a shape substantially corresponding to the extension piece 34E of the overlapping portion 34 of the second mounting member 30, but is not necessarily extended. Although it does not need to correspond to the piece 34E, it is required that the link arm 40 is formed so as to overlap with the link arm 40 regardless of the position of the link arm 40.

  The relief groove 24G of the reinforcing extension piece 24E has a shape corresponding to a track that is displaced until the two pivot shafts 42SB and 44SB move from the open position of the door 3 to the fully closed position. The arms 42 and 44 are formed so as not to interfere with the extension piece 24E regardless of the position of the track. 4 and 5, reference numeral 50 denotes a spacer disposed between the overlapping portion 24 of the first mounting member 20 and the overlapping portion 34 of the second mounting member 30.

  Next, the operation of the hinge device 10 of the present invention will be described in detail with reference to FIGS. 6 to 10 and FIG. 11. First, in the position where the door 3 is completely closed, FIG. 6 and FIG. As shown, the U-shaped overlapping portions 24 and 34 of the first and second mounting members 20 and 30 are overlapped inside and outside, and the two arms 42 and 44 of the link arm 40 are as shown in FIG. Are substantially parallel to each other.

  When the door 3 is opened to 15 ° from this position, for example, as shown in FIGS. 7 and 11B, the two arms 42 and 44 of the link arm 40 are pivoted on the first mounting member 20 side. The overlapping portion 34 of the second mounting member 30 moves away from the overlapping portion 24 of the first mounting member 20 while swinging counterclockwise about 44SA.

  When the door 3 is further opened to 45 °, as shown in FIGS. 8 and 11C, the two arms 42 and 44 of the link arm 40 are centered on the pivot shafts 42SA and 44SA on the first mounting member 20 side. Further, the overlapping portion 34 of the second mounting member 30 swings clockwise so as to be further away from the overlapping portion of the first mounting member 20 while swinging in the counterclockwise direction. Therefore, the arms 42 and 44 cross each other at a slightly smaller angle from the parallel state. For this reason, the pivot shaft 42SB of the arm 42 on the second mounting member 30 side swings in the clockwise direction relative to the pivot shaft 44SB of the arm 44, so that the overlapping portion 34 of the second mounting member 30 is obtained. Oscillating is promoted and expanded largely from the overlapping portion 24.

  Similarly, when the door 3 is further opened to 75 ° and 100 °, as shown in FIGS. 9, 10 and 11 (D) and (E), the arms 42 and 44 have an increased crossing angle. The overlapping portion 34 of the second mounting member 30 is deployed so as to be further away from the overlapping portion 24 of the first mounting member 20 by relatively swinging. In this case, as can be seen from FIG. 10 (F), the arm 44 has a smoothly inclined recess 44R into which the pivot shaft 42SB is engaged. Therefore, the arm 42 and the arm 44 are separated from the pivot shaft 42SB. The door 3 is stably held at the 100 ° open position (fully open position) by engagement (meshing) with the recess 44R.

  When the door 3 is closed, the overlapping portion 34 of the second mounting member 30 moves from the state of FIG. 10 toward the state of FIG. 6 in accordance with the reverse swing of the link arm 40. Swing in the reverse direction (close direction) until polymerized to 24.

  When the door 3 is opened, the overlapping portion 34 of the second mounting member 30 is disengaged from the overlapping portion 24 of the first mounting member 20, but the reinforcement having a clearance groove 24G that prevents the pivot shafts 42SB and 44SB of the link arm 40 from interfering with each other. Since the extension piece 24E supports the link arm 40 and the second attachment member 30 regardless of the position of the link arm 40, the weight of the door 3 is the same as that of the reinforcing extension piece 24E, the link arm 40, and the second arm. 2 Dispersed in the mounting member 30, an excessive force is not applied to the pivot shafts 42 SB and 44 SB, and the pivot shafts 42 SB and 44 SB are deformed (bent) and the pivot shaft penetration hole is deformed. The door 3 can be properly held and the door can be opened and closed properly.

  In the above embodiment, the reinforcing extension piece 24E is provided so as to support the load applied to the link arm 40 and the second attachment member 30, but the present invention is not limited to this. For example, a door load may be applied to the link arm 40 and this load may be received by the reinforcing extension piece 24E, or a door load may be applied to the second mounting member 30 and this load may be received by the reinforcing extension piece 24E. Good.

  In the form shown in FIG. 4, the overlapping portion 34 (the pair of overlapping portions) of the upper second attachment member 30 is placed on the upper reinforcing extension piece 24 </ b> E (the reinforcing extension piece positioned above the pair of reinforcing extension pieces). However, the overlapping portion 34 of the upper second attachment member 30 may be disposed under the upper reinforcing extension piece 24E. In short, in the present invention, the first attachment member 20 only needs to include the reinforcing extension piece 24E that supports the load of the door.

  According to the present invention, the pivot shaft on the second mounting member side which is the pivot portion of the link arm and the second mounting member is reinforced by the reinforcing extension piece of the first mounting member. Without being damaged, the door can always be opened and closed appropriately, and has high industrial applicability.

It is a schematic perspective view of the door open state of the cabinet using the hinge apparatus of this invention. It is an expansion perspective view of the attachment state of the hinge apparatus above the cabinet of FIG. It is an expansion perspective view of the attachment state of the hinge apparatus below the cabinet of FIG. The upper hinge device is shown, in which FIG. (A) is a perspective view of a door closing position, and FIG. (B) is an exploded perspective view. The lower hinge device is shown, in which (A) is a perspective view of a door closing position, and (B) is an exploded perspective view. The state corresponding to the door closing position of the lower hinge device is shown. FIGS. (A) to (D) are respectively a top view, a front view, a side view and a perspective view, and FIGS. They are the EE line and FF line sectional drawing of the figure (B), respectively. The state corresponding to the position where the door of the lower hinge device is slightly opened is shown. FIGS. (A) to (D) are a top view, a front view, a side view, a perspective view, and FIG. F) is a sectional view taken along line EE and line FF in FIG. The state corresponding to the position where the door of the lower hinge device is further opened than in FIG. 7 is shown. FIGS. (A) to (D) are a top view, a front view, a side view and a perspective view, respectively. E) and (F) are respectively the EE line and FF line sectional drawing of the figure (B). The state corresponding to the position where the door of the lower hinge device is further opened than in FIG. 8 is shown. FIGS. (A) to (D) are a top view, a front view, a side view and a perspective view, respectively. E) and (F) are respectively the EE line and FF line sectional drawing of the figure (B). The state corresponding to the door fully open position of a lower hinge apparatus is shown, The figure (A) thru | or (D) is the top view, a front view, a side view, a perspective view, and the figure (E) and (F) are respectively. These are sectional views taken along lines EE and FF in FIG. FIGS. 9A to 9E show the state of the lower hinge device corresponding to the closed position, 15 °, 45 °, 75 ° opened position and 100 ° opened position (fully opened position), respectively. It is a top view which shows (the state corresponding to FIG. 6 thru | or FIG. 10, respectively).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cabinet 2 Housing | casing 3 Door 3R hollow 10 Hinge apparatus 20 1st attachment member 22 Attachment plate 24 Superposition part 24E Reinforcement extension piece 24e Side wall edge 24G Escape groove 30 Second attachment member 32 Attachment plate part 34 Superposition part 34E Extension piece 36 Bending Portion 40 Link arm 42, 44 Arm 44R Recess 44S Step 42SA, 44SB, 42SB, 44SB Pivot 50 Spacer

Claims (2)

  A first attachment member to be attached to the housing; a second attachment member to be attached to the door; and a link arm that pivotally supports the first and second attachment members, wherein the second attachment member is the link In the hinge device that displaces between a position folded on the first mounting member via an arm and a position expanded from the first mounting member, and supports the door to be opened and closed on the housing. The first mounting member has a reinforcing extension piece that supports a load of the door, and the reinforcing extension piece has a clearance groove that allows a displacement of a pivot shaft that pivotally supports the link arm on the second mounting member. The hinge apparatus characterized by the above-mentioned.   2. The hinge device according to claim 1, wherein the first and second mounting members have a U-shaped overlapping portion that overlaps with each other in a folded state, and the reinforcing extension portion is formed of the first mounting member. A hinge device extending from a U-shaped overlapping portion.

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