JP2017040462A - Door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To define a releasing limit position at a door device having a lift hinge mechanism and enable the door to be kept under a state in which it is released by a prescribed angle.SOLUTION: A pivot end part 32A of a plate member 30 including a long hole 70 is rotatably pivoted at an edge part of a door 3 having a lift hinge mechanism and in turn an engaging body 40 slidably engaged with the long hole 70 of the plate member 30 and relatively moved in the long hole 70 as the door 3 is opened or closed is vertically installed at an edge part of an opening 2. A stopper part 35 to cause the engaging body 40 to be abutted to restrict releasing of the door 3 is arranged at a turning end part 33A is arranged at the plate member 30 and in turn a step part 31 is formed between a pivot end part 32A of the plate member 30 and a pivoting end part 33A and the pivot end part 32A and the turning end part 33A are set to be a different height to each other.SELECTED DRAWING: Figure 2

Description

  The technique disclosed by this specification is related with the door apparatus attached to the opening formed in the housing | casing.

  Conventionally, as a first technique related to a door device attached to an opening formed in a housing, for example, Patent Document 1 discloses a structure that supports a door while including a plate member that defines a door opening limit position. ing. On the other hand, as a second technique related to the door device, for example, Patent Document 2 discloses a door device including a so-called lift hinge mechanism that raises and lowers the door as the door is opened and closed to assist the door closing operation. .

Japanese Patent Laid-Open No. 10-318663 JP-A-11-257837

  As described above, the door support structure that includes the plate member according to the first technology and defines the opening limit position of the door is used as the door device including the lift hinge mechanism that assists the closing operation according to the second technology. Even if it tried to apply, since the raising and lowering of the door with respect to the opening was regulated by the plate member locked to both the door and the opening, the door could not be opened and closed and could not be used.

  The present specification discloses a door device that solves the above-described problems, defines an opening limit position of a door provided with a lift hinge mechanism, and can maintain the door in a state where the door is opened at a predetermined angle.

  A door device disclosed in the present specification includes a door for opening and closing an opening formed in a housing, and a pair of support members disposed above and below the opening and rotatably supporting the door. A pivot end of one end in the longitudinal direction is pivotally supported on at least one of the upper edge or the lower edge of the door or the opening, and extends along the longitudinal direction. Elongated plate member formed with a long hole, and the door or the opening of which is different from the one on which the plate member is pivotally supported, and is slidable in the long hole of the plate member And a latching body that relatively moves in the elongated hole as the door is opened and closed, and the pivot end portion in the longitudinal direction is disposed in the elongated hole of the plate member. When the door opens a predetermined amount on the opposite end side opposite to the side, A door device provided with a stopper portion for restricting the opening of the door by restricting relative movement in the hole, wherein the support member disposed below the opening of the pair of support members The plate member is provided with a lift hinge that raises and lowers the door as the door is opened and closed, and a step portion is formed between the pivot end and the opposite end in the plate member. The portion and the opposite end portion have different heights.

  According to the technology disclosed in the present specification, by providing a step in the plate member, the plate member is tilted with the vertical movement of the door, so that the engagement between the latch body and the plate member is released, Interfering with each other can be avoided. As a result, it is possible to define the opening limit position even in a door having a lift hinge mechanism whose height position changes when opened.

  In the door device disclosed in the present specification, the plate member or the hooking body arranged on the edge of the opening is pivotally supported or erected on any one of the pair of support members, The one support member is mounted at a position shifted upward or downward from the upper or lower edge of the door in the housing, and the hooking body stands with a protruding length larger than the plate thickness of the plate member. A latching leg portion inserted through the elongated hole of the plate member, and a latching head for retaining the elongated hole from the elongated hole, the plate member and the latching body, The hook is engaged with the hook leg in such a manner that it can move up and down relatively, and the hook body has a portion closer to the opposite end than the step in the elongated hole of the plate member. It is good also as a structure which slides.

  According to such a configuration, the plate member is pivotally supported on one support member provided at a position shifted in the vertical direction from the upper and lower edges of the door, or the latching body is erected, whereby the stepped portion is formed. Both ends of the formed plate member can be arranged along the edge of the door and the support member. Since the latching leg portion of the latching body is inserted into the elongated hole of the plate member with a projection length larger than the plate thickness of the plate member, the plate member is locked to the base end portion of the latching leg portion in the closed state. When it does, the clearance gap which can move a board member up and down is ensured between a board member and a latching head. Further, since the latching body includes the latching head, the plate member is prevented from coming off from the latching body, and the plate member is engaged with the periphery of the latching leg portion so as to be relatively movable up and down. Therefore, both can move up and down relatively in accordance with the vertical movement of the door.

  The above will be described in detail as follows. For example, when the latching body is erected from the lower support member disposed on the lower edge of the opening of the housing, the plate member is locked to the latching leg so as to be along the lower support member in the closed state. A certain gap is ensured between the upper surface of the plate member and the hanging head. Since the plate member and the latching body are engaged in such a manner that the plate member can move up and down relatively around the latching leg portion, when the door is lifted by the action of the lift hinge along with the door opening, The plate member moves in the horizontal direction around the latching leg portion and also moves above the latching leg portion to allow the door to rise. On the contrary, when the latching body is erected on the lower edge of the door, if the plate member is locked to the latching leg so as to be along the lower edge of the door in the closed state, A gap is secured between the head and the stop. Therefore, when the door is lifted by the action of the lift hinge as the door is opened, the latching body moves in the horizontal direction through the long hole of the plate member, and moves upward with respect to the plate member, allowing the door to rise. Is done.

  Furthermore, if the latching body is configured to slide only on the flat plate-shaped portion without sliding on the stepped portion, there is no possibility of the plate member coming into contact with the latching head. Can be slid without being caught, and the door can be opened smoothly. Further, if the height difference between the pivot end and the opposite end formed by the step is larger than the maximum height at which the door rises due to the action of the lift hinge, the height of the door rises. The problem that the plate member interferes with the latching portion is less likely to occur, and the opening / closing operation can be performed smoothly.

  Further, in the door device disclosed in the present specification, the lift hinge is erected on a bearing hole arranged at a lower edge of the door and a lower edge portion of the opening, and is inserted into the bearing hole. A pair of hinge pins that support the door so as to be rotatable about a vertical axis, and a cam surface having a concave and convex shape that is disposed around the hinge pin and the hole edge of the bearing hole and that meshes with each other on the opposing surface. And a step of raising the door when the door is opened by the action of the cam surface to assist the turning force in the door closing direction, while the step portion of the plate member is When the plate member is pivotally supported by the door, the pivot end portion is formed at a higher position than the opposite end portion, and the plate member is pivotally supported by the opening. In some cases, the opposite end is positioned higher than the pivot end. It can be assumed to be formed as.

  According to such a configuration, in the door device having the lift hinge mechanism that assists the turning force in the closing direction, the plate member can be moved up and down in accordance with the vertical movement of the door, and the door can be smoothly opened and closed. Easy and reliable door closing operation can be realized.

  Further, in the door device disclosed in the present specification, the inner surface of the elongated hole of the plate member near the opposite end can restrict the passage of the latching body and elastically deform the plate member. A protruding portion that allows passage of the latching body is projected, and the end portion on the pivot end portion side of the elongated hole is formed in an arc shape having a diameter larger than the width of the other portion of the elongated hole. Can be.

  When the latching body passes through the raised portion of the plate member long hole, the stress due to the elastic deformation of the plate member concentrates on the pivot end portion side of the long hole. Therefore, according to the configuration as described above, stress concentration is less likely to occur due to expansion in an arc shape, and deformation of the plate member is prevented. On the other hand, it becomes easy for the latching body to pass through the raised portions, the door is opened and closed smoothly, and the sound generated when the latching body passes between the raised portions is also reduced.

  Moreover, the door apparatus disclosed by this specification WHEREIN: The protruding part may be provided in several places of the inner surface in a long hole. According to such a structure, it can maintain in the state which opened the door at the several angle.

  Moreover, the door apparatus disclosed by this specification WHEREIN: The rib along the periphery of the said long hole may be provided in the location in which the said stopper part was arrange | positioned. If the latching body moves relative to the elongated hole of the plate member and passes through the raised portion and then is restricted by the stopper portion, a large stress is applied to the entire stopper portion of the plate member. Therefore, according to the above configuration, the strength of the plate member is improved and deformation is prevented by reinforcing the corresponding portion with the rib. Since the rib can be formed by press molding, the cost is not increased.

  According to the technology disclosed in the present specification, it is possible to obtain a door device that can define an opening limit position of a door provided with a lift hinge mechanism and can be maintained in a state where the door is opened at a predetermined angle.

The front view which shows one Embodiment of the storage provided with the door apparatus which concerns on this invention. The disassembled perspective view which shows the support structure of the door in the door apparatus of FIG. The perspective view which shows the arrangement | positioning state of a part of lift hinge to a lower support member, and a board member Perspective view of plate member Plan view of plate member Front view of plate member Plan view showing the state of the lower support structure when the door is closed Front view showing the state of the lower support structure when the door is closed Plan view showing the state of the lower support structure when the door is opened Front view showing the state of the lower support structure when the door is opened Plan view of plate member according to other embodiment Exploded perspective view showing pin side collar mounting structure Perspective view of hole side collar viewed from below Expanded sectional view showing the cam surface engaged when the door is closed Expanded sectional view showing the cam surface engaged during door opening and closing Expanded sectional view showing the cam surface engaged when the door is opened

  Hereinafter, one embodiment of a storage provided with a door device according to the present invention will be described with reference to FIGS. As shown in FIG. 1, the storage 100 of the present embodiment is a refrigerator having a configuration in which a door 3 is attached in a double-spread manner to an opening 2 formed on the front surface of a housing 1 made of a heat insulating box. It is supported by legs provided at the four corners of the bottom surface, and the interior serves as a storage room.

  On the other hand, a machine room is provided on the upper surface of the refrigerator body, in which a refrigeration unit (not shown) composed of a compressor, a condenser, etc. is installed, and a cooler (not shown) disposed on the ceiling of the storage room A well-known refrigeration cycle is configured by refrigerant piping. With the control operation of the refrigeration unit, the storage chamber is maintained at a substantially constant cooling temperature, and stored items are taken into and out of the storage chamber through the opening 2 while opening and closing the door 3.

  In the following, the left side in FIG. 1 is the left (the right side is the right), and the front side of the page is the front (the back side is the back or the back). In addition, since the door arranged on the right edge and the door arranged on the left edge are supported by the same structure reversed left and right, the rotation axis is mainly provided on the right edge below. The right door 3 will be described.

  As shown in FIG. 2, the door 3 is provided with hinge pins 15 and 25 erected on the upper support member 10 and the lower support member 20 disposed above and below the opening 2 at the upper and lower edges of the door 3. By being inserted freely through the bearing hole, it is supported on the front surface of the opening 2 of the housing 1 so as to be swingable and openable with A1 in FIG. The upper support member 10 is made of steel, and as shown in FIG. 2, a support portion 10B having a horizontal plate surface is bent at a right angle at the lower edge of the mounting portion 10A having a vertical plate surface. Is formed. One insertion hole 12 for each attachment screw 11 is formed on each side of the attachment portion 10A, and the screw hole 13 formed above the opening 2 on the front surface of the housing 1 is aligned with the insertion hole 12. The upper support member 10 is fixed to the housing 1 by attaching the attachment screw 11 while making it. The upper support member 10 is attached so that the lower surface of the support portion 10 </ b> B is shifted slightly above the upper edge of the opening 2 of the housing 1 so as to be horizontal. A mounting hole (not shown) is opened in the support portion 10B, and the upper hinge pin 15 is fitted downward in this mounting hole. The axis A <b> 1 of the upper hinge pin 15 is provided in the front direction in the thickness direction of the door 3 so as to be located slightly outside the vertical edge of the opening 2.

  On the other hand, a bearing hole 5 is formed at the upper edge of the door 3. The bearing hole 5 is provided on the axis A1 at the upper edge of the door 3. By inserting the upper hinge pin 15 into the bearing hole 5, the door 3 is rotatable around the axis A1. Supported by

Next, the support structure of the lower part of the door 3 provided with the lift hinge mechanism will be described.
As shown in FIG. 2, the lower support member 20 is substantially the same member as the upper support member 10 turned upside down, and a support portion 20B is formed on the upper edge of the attachment portion 20A. A total of two insertion holes 22 are formed on both side portions. An attachment screw 21 is attached to the insertion hole 22 while being aligned with a screw hole 23 formed below the opening 2 on the front surface of the housing 1, and the lower support member 20 is fixed to the housing 1. As will be described later, the lower support member 20 is horizontal at a position where the upper surface of the support portion 20B is shifted downward by a predetermined amount from the lower edge of the opening 2 of the housing 1 and, consequently, the lower edge of the door 3. Attached to. Further, a mounting hole (not shown) is formed at a position aligned with the axis A1 of the support portion 20B of the lower support member 20, and the lower hinge pin 25 is fitted upward.

  As shown in FIG. 3, a pin side collar 50 is disposed around the lower hinge pin 25. The pin side collar 50 is a member made of synthetic resin, and as shown in FIG. 12, a cam surface 55 having a planar ring shape is arranged on the front side portion to be fitted around the lower hinge pin 25, and the cam The substrate portion that extends rearward from the lower side of the surface 55 is formed to have a substantially triangular shape that is gradually tapered. An insertion hole 56 through which the lower hinge pin 25 is inserted with a slight clearance is opened at the center of the cam surface 55. Three convex portions 52A, 52B, and 52C are formed at equiangular intervals on the cam surface 55, and inclined portions 53 that form a downward slope are formed on both sides of each convex portion 52, and the concave portions 54A, 54B, and 54C are formed, respectively. It is lined up across. The pin side collar 50 allows the lower hinge pin 25 to be inserted into the insertion hole 56, and a non-illustrated non-illustrated protrusion formed on the lower surface of the substrate portion is inserted into the insertion hole 29 formed at the rear of the lower hinge pin 25. The upper support member 20 is disposed on the upper surface. When the cam surface 55 is disposed on the lower support member 20, the center of one convex portion 52 </ b> B is positioned at the front center of the insertion hole 56, and is set to be symmetrical with respect to the center line of the cam surface 55. Has been.

  On the other hand, an elliptical fitting hole 7 having a major axis in the front-rear direction is provided at the lower edge of the door 3, and a hole-side collar 60 is attached to the fitting hole 7. The hole-side collar 60 is a member formed in a planar oval block shape with a synthetic resin material, and as shown in FIG. 13, a flange 61 is formed on the periphery of the surface. A dead-end bearing hole 66 through which the lower hinge pin 25 can be freely inserted is formed at a position aligned with the axis A1 on the lower surface of the hole-side collar 60. Around the bearing hole 66 of the hole-side collar 60, a convex portion 62, an inclined portion 63, and a concave portion 64 are repeatedly formed in the circumferential direction, and a planar ring-shaped cam surface 65 is provided so as to mesh with the cam surface 65 described above. ing. However, in the cam surface 65, unlike the above-described cam surface 55, the center of one recess 64B is set at the front center of the bearing hole 66. The hole side collar 60 is inserted into the fitting hole 7 with the bearing hole 66 opened downward, and is press-fitted and fixed until the flange 61 hits the lower surface of the door 3.

  In such a lift hinge mechanism, the hole-side collar 60 rotates relative to the pin-side collar 50 so that the door 3 is opened and closed while being raised and lowered. For example, when the closed door 3 is opened, the cam surface 65 of the hole side collar 60 rotates on the cam surface 55 of the pin side collar 50 in the counterclockwise direction as viewed from above. That is, in the diagram schematically showing the engaged state of both cam surfaces, the door 3 is closed, and the upper side from the state of FIG. 14A where the convex portions and the concave portions of both cam surfaces are engaged with each other. The cam surface 65 moves in the direction indicated by the arrow in FIG. 14B, and, for example, the upper convex portion 62B engaged with the lower concave portion 54B moves from the lower inclined portion 53 to the upper portion of the convex portion 52A. As shown in FIG. 14C, the door 3 is lifted and opened. On the contrary, when the open door 3 is closed, the cam surface 65 of the hole side collar 60 is on the cam surface 55 of the pin side collar 50 in the clockwise direction as viewed from above, that is, opposite to the time when the door is opened. Move in the direction of. That is, from the state of FIG. 14C where the convex portions of both cam surfaces are engaged with each other and opened at the raised position, the upper cam surface moves in the direction of the broken line arrow in FIG. The upper convex portion 62B slides down from the lower inclined portion 53 toward the concave portion 54B, and the door 3 descends following the cam surface to settle in the state of FIG. 14A. As described above, the lift hinge mechanism applies a turning force in the door closing direction to the door 3, thereby assisting in the door closing operation of the door 3 so that the door can be easily and reliably closed.

  Next, a mechanism for defining the opening limit position while allowing the door 3 to open and close with vertical movement will be described. As shown in FIG. 2, in the present embodiment, a mechanism for defining the opening limit position of the door 3 is provided only in the lower part of the door 3. A pin hole (not shown) is formed on the lower edge of the door 3 at a position closer to the inner side than the above-described hole side collar 60 is mounted, and one end (pivot support) of a plate member 30 to be described later is formed in this pin hole. A pivot pin 39 pivotally supporting the end portion 32A) is inserted from below, and a plate member 30 is attached to the lower edge of the door 3 by fitting a nut 38 from the back side.

  On the other hand, a hole 26 is formed at a position closer to the inner side in the support portion 20 </ b> B of the lower support member 20, and the latching body 40 is fitted into the hole 26. The latching body 40 has a shape in which a disc-shaped latching head 40B having a diameter larger than the width of the long hole 70 of the plate member 30 described later is provided on the upper part of the cylindrical latching leg portion 40A. is there. The front end of the latching leg 40A is inserted from above in the order of a long hole 70 of the plate member 30 and a hole 26 of the lower support member 20, which will be described later, and a nut 41 is fitted from the back side, thereby The holding body 40 is fixed to the upper surface of the support portion 20B while holding the plate member 30 between the lower support member 20 and the lower support member 20. As will be described later, the latching leg portion 40A of the latching body 40 has a distance between the upper surface of the support portion 20B and the lower surface of the latching head 40B in a state of being fixed to the lower support member 20. The plate member 30 is formed to be longer than the plate thickness by a predetermined length. With such a configuration, the latching body 40 is slidably latched with respect to the long hole 70 of the plate member 30.

Next, the plate member 30 will be described with reference to FIGS. 4 to 6.
As shown in FIG. 4, the plate member 30 is formed by bending a long plate-like member having a long hole 70 extending in the longitudinal direction at two locations in the longitudinal direction, and two horizontal portions are It has a shape connected with a stepped portion 31 inclined at a predetermined angle. Of the two horizontal portions positioned on both sides of the step portion 31 in the longitudinal direction of the plate member 30, the shorter one is a pivot portion 32, and a pivot pin 39 is provided in the vicinity of the pivot end portion 32A formed in an arc shape. A pin hole 36 is provided through which the pin is inserted. On the other hand, the longer side located on the other side of the stepped portion 31 is a turning portion 33, and a notch 34 is formed on a side portion in the vicinity of a turning end portion (opposite end portion) 33A that is also formed in an arc shape. The elongated hole 70 is open to the outside of the plate member 30. As shown in FIG. 5, the step portion 31 positioned between the pivot portion 32 and the rotation portion 33 is formed so that the width is slightly narrowed from the rotation portion 33 toward the pivot portion 32 in a top view. In addition, as shown in FIG. 6, the front part is formed so as to have an upward gradient of about 18 degrees from the rotation part 33 toward the pivotal support part 32.

  As shown in FIGS. 4 and 5, the long hole 70 extends from the position near the pivotal support portion 32 in the stepped portion 31 so as to extend to the vicinity of the distal end portion of the rotating portion 33. In the notch 34, the long hole 70 is opened to the outside of the plate member 30, so that both side portions of the plate member 30 positioned before and after the long hole 70 in the rotating portion 33 and the stepped portion 31 are separated from each other. Thus, it can be elastically deformed. Further, on the inner surface of the elongated hole 70 on the open end 70A side, the passage of the latching leg 40A of the latching body 40 can be restricted, and the latching leg part is formed by the elastic deformation of the plate member 30 as described above. A raised portion 71 that allows passage of 40A is formed. The rotating end portion 33 </ b> A of the plate member 30 that defines the open end 70 </ b> A of the elongated hole 70 functions as the stopper portion 35. A rib 37 is provided along the edge of the elongated hole 70 from the rear side portion of the elongated hole 70 in the rotating portion 33 of the plate member 30 to the rotating end portion 33 </ b> A including the stopper portion 35. On the other hand, the non-open end 70 </ b> B of the long hole 70 is formed in an arc shape having a diameter larger than the width of the other part of the long hole 70.

Next, the operation of the door device as described above will be described with reference to FIGS.
First, the case where the door 3 is in a closed state will be described with reference to FIGS. 7 and 8.
In a state where the door 3 is closed and the opening 2 of the housing 1 is closed, the plate member 30 is located at a position slightly forward of the lower edge of the door 3 as shown in FIG. 3 is arranged so as to be substantially parallel to the surface of 3. In this state, the latching body 40 is engaged at a position slightly closer to the step portion 31 than the center in the portion formed in the rotating portion 33 of the elongated hole 70. Although not shown in the drawing, a packing is provided between the rear surface of the door 3 and the front surface of the housing 1 so as to block the gap between the two and prevent air from flowing into and out of the storage chamber from the periphery of the opening 2. Established.

  On the other hand, in a front view, as shown in FIG. 8, a state in which the convex portion 52 of the pin side collar 50 provided around the lower hinge pin 25 and the concave portion 64 of the hole side collar 60 at the lower edge of the door 3 are engaged. And the door 3 is in the lowered position. In this state, the plate member 30 maintains the normal posture in which the pivot portion 32 and the rotation portion 33 are horizontal, while the pivot portion 32 is on the lower edge of the door 3 and the rotation portion 33 is on the upper surface of the lower support member 20. These are arranged so as to follow each other. That is, the shift amount S1 of the upper surface of the support portion 20B from the lower edge of the door 3 is set to be substantially the same as the height of the plate member 30 (the interval from the upper surface of the pivot support portion 32 to the lower surface of the rotation portion 33). Has been. Further, since the plate member 30 is engaged and held at the projecting lower end of the latching leg portion 40A, the plate member 30 is disposed between the upper surface of the plate member 30 and the lower surface of the latching head portion 40B in the rotating portion 33. A gap S2 is formed in which 30 can move up and down. As will be described later, S2 is set to be substantially the same as or larger than the rising amount of the lower edge of the door 3 by the lift hinge.

Next, the action | operation of the horizontal door apparatus accompanying a door opening operation | movement is demonstrated, referring FIG.
If the lower hinge pin 25 is pivoted to open the door 3 from the above-mentioned closed state, the pivotal support portion 32 of the plate member 30 pivotally supported on the lower edge of the door 3 moves to the right front as the door 3 rotates. As a result, the entire plate member 30 rotates while sliding, and the latching body 40 relatively moves in the elongated hole 70 toward the open end 70A. When the latching body 40 reaches the raised portion 71 of the elongated hole 70, the movement of the latching body 40 is restricted, and the rotation of the door 3 is also regulated. When an external force in the door opening direction is further applied from here, the raised portions 71 are separated from each other by elastic deformation of the plate member 30 as described above, and the latching body 40 passes between the raised portions 71.

  In the present embodiment, since the non-open end 70B is formed in an arc shape having a relatively large diameter, stress concentration due to elastic deformation of the plate member 30 is avoided, and the raised portions 71 are easily separated from each other. . After passing through the raised portion 71, even if the door 3 is further urged in the rotation direction, the latching body 40 comes into contact with the open end 70 </ b> A defined by the stopper portion 35, so that the door 3 cannot move. The open limit position is defined. Here, since the rib 37 is formed on the rotating end portion 33A including the stopper portion 35 to improve the strength, the load applied to the stopper portion 35 can be received by the contact of the hooking body 40. Further, deformation and breakage in the stopper portion 35 can be avoided. Further, when the latching body 40 passes between the raised portions 71, the elastic deformation of the plate member 30 is recovered, and the movement of the latching body 40 to the non-open end 70 </ b> B is regulated by the raised portion 71. As shown in FIG. 9, the door 3 can be held open.

Next, the action | operation of the door apparatus of the perpendicular direction accompanying a door opening operation | movement is demonstrated, referring FIG.
When the door 3 is rotated in the opening direction, the door 3 is lifted by the action of the cam surface 55 and the cam surface 65 provided around the lower hinge pin 25 as described with reference to FIGS. 14A to 14C. In the state where the door 3 is opened to the limit position as shown in FIG. 10, the convex part 62 of the hole side collar 60 rides on the convex part 52 of the pin side collar 50, and the convex part 52 of the pin side collar 50. The door 3 is lifted by an amount (S2) substantially equal to the protruding amount of. As the door 3 is raised, the plate member 30 pivotally supported by the lower edge of the door 3 is also raised by S2, and the upper surface of the plate member 30 engaged with the lower end of the latching leg portion 40A is hung. It is made to contact | abut to the lower surface of the stop head 40B. In the door closing operation, the door 3 that has been opened in the raised state is lowered by the action of the cam surfaces 55 and 65, so that the door 3 is reliably closed. The plate member 30 locked to the upper end of 40A is also lowered and locked to the lower end of the latching leg 40A so that the door member 3 is not hindered by the plate member 30 from closing. .

According to this embodiment, the following effects can be obtained.
In the present embodiment, the latching body 40 is erected on the lower support member 20 provided at a position shifted from the lower edge of the door 3 in the vertical direction by S1 that is substantially equal to the thickness of the plate member 30, and the step portion By providing 31, both end portions of the plate member 30, that is, the pivot end portion 32 </ b> A and the rotation end portion 33 </ b> A are arranged along the lower edge of the door 3 and the upper surface of the lower support member 20. Can do. And since the latching leg part 40A of the latching body 40 is inserted in the long hole 70 of the plate member 30 with a protrusion length larger than the plate thickness of the plate member 30, the top surface of the plate member 30 and the latching in the closed state. A gap S2 that allows the plate member 30 to move up and down is secured between the lower surface of the head 40B. Further, since the latching body 40 includes the latching head 40 </ b> B, the plate member 30 is prevented from being detached from the latching body 40, and the plate member 30 is configured so that the latching leg portion 40 </ b> A is adapted to the vertical movement of the door 3. By making the periphery relatively movable up and down, the vertical movement associated with the opening and closing operation of the door 3 is not restricted by the plate member 30, and the door by the plate member 30 is also provided in the door 3 having the lift hinge mechanism. A structure that defines the opening limit position of the lens is applicable. Further, since the plate member 30 has a step, it is possible to avoid a situation in which the latching head 40B and the plate member 30 interfere with each other due to the plate member 30 being inclined as the door 3 moves up and down.

  Moreover, in this embodiment, since the latching body 40 becomes a structure which moves only the rotation part 33 formed in flat form, without passing through the level | step-difference part 31, the latching head 40B is a board. The latch 40 can be slid in the elongated hole 70 without interfering with the member 30, and a smooth door opening and closing and an easy and reliable closing operation can be realized.

  Further, in the present embodiment, the non-open end 70B of the long hole 70 is formed in an arc shape having a relatively large diameter, so that the elasticity of the plate member 30 when the hooking body 40 passes through the raised portion 71. The stress generated by the deformation is dispersed, and the deformation of the plate member 30 is difficult to occur. Further, the raised portions 71 are easily separated from each other so that the latching body 40 can easily pass through, the door 3 is opened and closed smoothly, and the sound generated when the latching body 40 passes between the raised portions 71 is also generated. It is reduced.

  Furthermore, in the present embodiment, the stopper member 35 that abuts the latching body that has passed through the raised portion 71 and defines the opening limit position of the door 3 is reinforced by the rib 37, so that the plate member 30 is deformed or damaged. Can be avoided.

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiment described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope.

(1) As a different embodiment of the plate member 30, as shown in FIG. 11, the plate member 230 may include raised portions 71 </ b> A and 71 </ b> B provided at a plurality of locations on the inner surface of the long hole 70. In this way, the plate member 230 can hold the door 3 in a state where the door 3 is opened at a plurality of predetermined angles.
(2) The example in which the mechanism for defining the opening limit position of the door 3 is provided on the lower support member 20 having the lift hinge mechanism has been described, but the present invention is not limited to this. Only the upper support member 10 may be provided with a mechanism for defining the opening limit position, or may be provided on both the upper support member 10 and the lower support member 20. In addition to the lower support member 20, the upper support member 10 may be provided with a lift hinge mechanism.

DESCRIPTION OF SYMBOLS 1 ... Housing, 2 ... Opening, 3 ... Door, 10 ... Upper support member, 15 ... Upper hinge pin, 20 ... Lower support member, 25 ... Lower hinge pin, 30 ... Plate member, 31 ... Step part, 32A ... Pivot end Part, 33A ... rotating end (opposite end), 34 ... notch, 35 ... stopper part, 39 ... pivot pin, 40 ... latching body, 40A ... latching leg part, 40B ... latching head part, 50 ... Pin side collar (lift hinge mechanism), 60 ... Hole side collar (lift hinge mechanism), 70 ... Long hole, 70A ... Open end, 70B ... Non-open end, 71 ... Raised part

Claims (6)

A door for opening and closing an opening formed in the housing;
A pair of support members disposed above and below the opening and rotatably supporting the door;
A length of one of the door and the opening, which is pivotally supported at least one of the upper edge and the lower edge of the door in a longitudinal direction and extends along the longitudinal direction. A longitudinal plate member with holes formed therein;
Of the door or the opening, the edge of the plate member is different from the one pivotally supported, slidably engages with the elongated hole of the plate member, and with the opening and closing of the door A latching body that relatively moves in the elongated hole,
In the long hole of the plate member, when the door is opened by a predetermined amount on the opposite end side opposite to the side where the pivot end is disposed in the longitudinal direction, A door device provided with a stopper portion for restricting the opening of the door by restricting relative movement of the door,
While the support member disposed below the opening of the pair of support members includes a lift hinge that raises and lowers the door as the door is opened and closed,
In the plate member, a step is formed between the pivot end and the opposite end, and the pivot end and the opposite end have different heights. Door device to do. The plate member or the latching body arranged at the edge of the opening is pivotally supported or erected on any one of the pair of support members, and the one support member is mounted on the casing. It is attached at a position shifted upward or downward from the upper or lower edge of the door,
The latching body is erected with a projecting length larger than the plate thickness of the plate member and is inserted into the elongated hole of the plate member, and the latching head responsible for retaining from the elongated hole The plate member and the latching body are engaged in a manner in which the plate member can move up and down relatively with respect to the latching leg portion,
The door device according to claim 1, wherein the latching body slides in a portion closer to the opposite end portion than the stepped portion in the elongated hole of the plate member. The lift hinge is
A bearing hole disposed on the lower edge of the door;
A hinge pin that is erected on the lower edge of the opening and is rotatably inserted around the vertical axis by being inserted into the bearing hole;
A pair of collars provided around the hinge pin and the hole edge of the bearing hole and formed with concave and convex cam surfaces that mesh with each other on the opposing surface;
On the other hand, by the action of the cam surface, the door is raised at the time of opening to assist the turning force in the closing direction,
The step portion of the plate member is formed such that when the plate member is pivotally supported by the door, the pivot support end portion is disposed at a position higher than the opposite end portion. 3. When the member is pivotally supported by the opening, the opposite end portion is formed at a position higher than the pivot end portion. The door device described in 1. On the inner surface near the opposite end of the long hole of the plate member, a protruding portion that can restrict the passage of the latching body and allow the passage of the latching body by elastic deformation of the plate member protrudes. Established,
The end portion on the pivot end portion side of the elongated hole is formed in an arc shape having a diameter larger than the width of the other portion of the elongated hole. The door apparatus as described in any one.   5. The door device according to claim 4, wherein in the elongated hole, the raised portions are provided at a plurality of locations on an inner surface.   6. The rib according to any one of claims 1 to 5, wherein a rib is provided along a peripheral edge of the elongated hole at a position where the stopper portion is disposed in the opposite end portion of the plate member. The door device according to any one of the above.

Images