JP4394129B2 - Door closing order adjuster - Google Patents

Description

  The present invention relates to an improvement of a door closing order adjuster used for adjusting the closing order of two doors.

  2. Description of the Related Art Conventionally, a door closing order adjuster is known as a device that closes a set of two doors in order. For example, the door closing order adjuster described in Japanese Patent Application No. 2005-350601 which has improved the problems of the conventionally known door closing order adjuster is shown in FIG. 91, an arm 92 that is pivotally supported by the mounting member 91 via a shaft body and moves in the horizontal direction, and a second arm 93 that is tiltably installed on the arm 92. In addition, the arm 92 has a configuration in which the arm 92 is protruded and disposed so as to come into contact with the opposing position of the rear closing door 21.

  According to the door closing order adjuster having such a configuration, when a pair of opening / closing doors composed of a front closing door and a rear closing door is closed, the rear closing door is attached to the distal end portion of the arm set at an appropriate angle. Since the contact is restricted, the front door can be closed first. Then, for example, the tip of the front closing door presses the side surface of the arm to start the rotation of the arm, and then the front closing door rides on the second arm to close the arm via the second arm. By rotating, the rear closing door is closed while being regulated by the sliding arm.

  However, as shown in FIG. 14B, the door closing order adjuster described in Patent Document 1 uses a resin hinge for the second arm 93, so that, for example, the first door is always closed due to a creep phenomenon. When used in an open state, the hinge remains bent, and the second arm 93 may not follow the arm 92, leaving room for improvement.

  Therefore, solving such a problem is an issue, and the present invention not only prevents noise generation, but also has a high reliability and long life of the device, and for any type of two doors. However, an object of the present invention is to provide a door closing order adjuster that can be easily attached.

  The present invention will be described below. In addition, in order to make an understanding of this invention easy, the reference number of an accompanying drawing is attached in parenthesis writing, However, This invention is not limited to the form of illustration by it.

The door closing order adjuster according to the present invention includes a base (41) fixedly installed on an upper frame, an arm (52) installed rotatably with respect to a shaft body (42) of the base, An elastic body (45) that exerts an urging force on the arm so that the arm protrudes from the upper frame side in the door opening direction, and is fixedly installed on the base so as to be tiltable. A distal end of the elastic body extends to the arm side. Two arms, and when the two doors move from an open state to a closed state, the arms are disposed in contact with one of the doors to be closed later, restricting the movement of the one door and closing first. The other door is closed while pressing the second arm, and the second arm is pressed by the other door, whereby the arm rotates against the urging force of the elastic body, The order of closing two doors by closing the doors It is a door closing order adjuster for adjusting the position, and includes a second arm (55) fixedly installed on the base so as to be tiltable, and the second arm always tilts following the rotation state of the arm. It is characterized by doing.

  In the door closing order adjuster, at least one of the second arm and the arm has an engaging portion (60, 62), and the tip of the second arm is connected to the arm via the engaging portion. Can be attached.

Further, the door closing order adjuster may include urging force applying means (77, 85) for always urging the second arm with respect to the arm.
In the door closing order adjuster, the biasing force applying means may be an elastic body (77).

  In the door closing order adjuster, the second arm includes a rotating body (82) that moves following the rotating state of the arm, and a tilting member (84) that attaches the rotating body to the arm so as to be tiltable. 85), and the surface on which the rotating body and the tilting member come into contact is formed as an inclined surface (83c, 84c), and the inclined surface rises so that the rotating body stands upright with respect to the base. The contact force between the member and the tilting member is increased, and the second arm can always be biased with respect to the arm.

  According to the present invention, it is possible to provide a new door closing order adjuster that is reliable and has a long service life and can be easily attached to any type of two doors.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described with reference to the drawings. The following embodiments do not limit the invention according to each claim, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention.

-First embodiment-
FIG. 1 is a partial cross-sectional top view of a door closing order adjuster with two doors open, FIG. 2 is a partial cross-sectional top view of a door closing order adjuster with two doors closed, and FIG. 3 is a door. FIG. 4 is a cross-sectional view taken along line AA in FIG. 2, illustrating an example of the operation of the closing order adjuster.

―Structure of door closing order adjuster―
First, the structure of the door closing order adjuster according to the present embodiment will be described.

  As shown in FIG. 1, the door closing order adjuster according to the present embodiment has a base 41 fixedly installed on an upper frame and a rear end rotatably installed with respect to a shaft body 42 of the base 41. The arm 52 includes an elastic body 45 that exerts a biasing force in the direction in which the door 52 opens from the upper frame side, and a roller 53 that is rotatably provided at the tip of the arm 52. Further, the door closing order adjuster according to the present embodiment includes a second arm 55 that is fixedly installed so as to be tiltable with respect to the base 41. The second arm 55 is as shown in FIGS. In addition, the tip is a member configured to always maintain a contact state with the arm 52.

  The base 41 is a member that serves as an installation reference for the door closing order adjuster according to the present embodiment by being fixedly installed on the upper frame. That is, the base 41 includes a plurality of mounting holes 43 in the body portion, and the fixing to the upper frame is realized by using these mounting holes 43. Further, the base 41 has a shaft body 42 formed so that the axial direction extends in the vertical direction when fixed to the upper frame. The shaft body 42 serves as a rotation center axis in the rotation operation of the arm 52 by connecting an arm 52 described later so as to be rotatable.

  As shown in FIGS. 1 to 3, the arm 52 is a member that supports the rear closing door 21 by projecting in the door opening direction from the upper frame side, and has a longitudinal section formed in a rectangular shape. The arm 52 includes a roller 53 that is rotatably provided at the tip, and the roller 53 comes into contact with the rear closing door 21 when the two doors are opened.

  As shown in FIGS. 1, 2, and 4, a concave groove 60 is formed on the outer side surface of one side of the arm 52 along the axial direction thereof. It is adapted to be engaged with the front end portion.

  The elastic body 45 is constituted by a coil spring, and one end is attached to the base 41 and the other end is attached to the arm 52. The elastic body 45 is installed so as to always exert a biasing force in the direction in which the arm 52 opens with respect to the base 41. Yes. The elastic body 45 allows the arm 52 to realize a smooth sliding contact with the rear closing door 21.

  Note that the installation angle of the arm 52 with respect to the base 41 when the arm 52 is in a protruding state by receiving only the urging force from the elastic body 45 is arbitrarily changed by an angle setting mechanism provided on the base 41 side. It is possible. The angle setting mechanism includes an angle adjusting bolt 46 that is allowed to rotate only within the base 41, and is screwed into the angle adjusting bolt 46 via a spring, and is moved in the front-rear direction according to the rotational movement of the angle adjusting bolt 46. The angle adjusting block 47 is configured to move in the vertical direction of the paper surface in FIG. The wall surface 52a formed by providing an opening at the base 41 connection side end of the arm 52 abuts on the angle adjusting block 47, so that the rotation operation of the arm 52 is restricted and the rotation limit is limited. The installation angle of the arm 52 is determined.

  The second arm 55 is the most characteristic member constituting the door closing order adjuster according to the present embodiment. As the constituent material, a flexible material such as resin or rubber is employed. The second arm 55 is formed so that the initial state is substantially in a straight line. As shown in FIG. 1, when the second arm 55 is in contact with the arm 52 that is in a protruding state when the two doors are open, Since the second arm 55 tries to recover the substantially straight state that is the initial state, the second arm 55 exerts an urging force on the direction of the arm 52.

  Further, as shown in FIG. 4, the tip of the second arm 55 is formed with a flange portion 56 including a pair of flanges 56a so that the arm 52 can be pinched and sandwiched. In addition, a protrusion 62 projecting inward is formed on one of the flanges 56a, and engages with a concave groove 60 formed on the outer side surface of the arm 52.

  Accordingly, as shown in FIGS. 1 and 2, the second arm 55 can always maintain a contact state with the arm 52.

―Operation of door closing order adjuster―
Next, the operation of the door closing order adjuster according to this embodiment will be described with reference to FIG.

  In the initial state where the two doors are opened, the arm 52 prevents the rear closing door 21 from closing before the first closing door 11 by abutting and supporting the rear closing door 21. That is, in the door closing order adjuster according to the present embodiment, the protruding arm 52 contacts the rear closing door 21 via the roller 53 so that the rear closing door 21 does not close before the front closing door 11 closes. Thus, the rear door 21 is retracted from the operating range of the front door 11 (inside the arc of the chain line indicated by the symbol α). Then, when the front door 11 is rotated while drawing the locus of the chain line indicated by the symbol α, the second arm 55 is installed between the arm 52 and the front door 11, so the arm 52 is the second arm 55. It will receive the press by the front closing door 11 via.

  Here, since the second arm 55 according to the present embodiment has a shape having a certain length, it is not necessary to adjust the mounting position of the door closing order adjuster itself, and the rear door 21 is closed. And the attachment work in consideration of only the positional relationship between the arm 52 and the arm 52 may be performed.

  When the first closing door 11 rotates and the pressing to the second arm 55 proceeds, the first closing door 11 is closed by the second arm 55 pressing and sliding the side surface of the arm 52. Also at this time, since the second arm 55 is made of a flexible material such as resin or rubber, the influence on the arm 52 can be minimized and the generation of noise can be prevented. Further, since the second arm 55 has a gentle contact surface with the front door 11, there is no problem similar to that of the front door 11 riding on the bolt head, which has been a problem in the prior art. According to the second arm 55 according to the present embodiment, a smooth and quiet closing operation is realized.

  On the other hand, the arm 52 slides inside the rear closing door 21 simultaneously with the pressing operation of the second arm 55 by the first closing door 11, so that the arm 52 rotates in the closing direction. That is, since the front door 11 presses the arm 52 and rotates the arm 52 toward the upper frame against the urging force of the elastic body 45, the operating range of the front door 11 (the arc of the one-dot chain line indicated by the symbol α) The rear closing door 21 is allowed to enter the inside. Then, the rear closing door 21 is gradually closed while being regulated by the sliding arm 52. When the closing of the two doors is finally completed, the door closing order adjuster according to this embodiment is shown in FIG. As described above, the arm 52 is held in a direction substantially parallel to the door surface of the front door 11.

The preferred installation conditions of the arm 52 and the second arm 55 will be described with reference to FIG. 2 again. The arm that is held in a direction substantially parallel to the door surface of the front door 11 when the front door 11 is closed. The limit rotation angle of the arm 52 from the position of 52 to the position of the arm 52 that is in a protruding state when the two doors are opened is θ ₁ , and the arm is substantially parallel to the door surface of the closed _first closed door 11. The limit tilting angle of the second arm 55 from the position of the second arm 55 when the 52 is held to the position of the second arm 55 that is in contact with the arm 52 that is in a protruding state with the two doors opened. When defined as θ ₂ , the arm 52 and the second arm 55 are preferably configured under the condition that the inequality of θ ₁ > θ ₂ holds. By configuring the arm 52 and the second arm 55 so as to satisfy such conditions, smooth operation of the door closing order adjuster according to the present embodiment is realized.

  As mentioned above, although preferred embodiment of this invention was described, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the embodiment.

  For example, in the present embodiment, the concave groove 60 is provided on the outer side surface on one side of the arm 52, and the protrusion 62 that engages with the concave groove 60 is provided on one flange 56 a of the second arm 55. The concave groove 60 may be provided on the outer side surfaces on both sides of the arm 52, and the protrusions 62 that engage with the concave groove 60 may be provided on both flanges 56 a of the second arm 55. In this way, the second arm 55 can be securely attached to the arm 52, and the tip of the second arm 55 is always made to follow the movement of the arm 52 and contact the arm 52. It is possible to keep.

  Further, a protrusion-like engagement portion may be provided on the arm side, a recess may be provided on the second arm side, and the protrusion-like engagement portion may be engaged with the recess.

  Further, since it is sufficient that the second arm 55 can be always urged with respect to the arm 52, for example, the second arm 55 and the arm 52 may be attracted to each other using a magnetic force of a magnet. .

  Moreover, in this embodiment, the case where the arm 52 was made to rotate by pressing only the 2nd arm 55 by the front closing door 11 was illustrated. However, in the door closing order adjuster according to the present invention, depending on the mounting position, the first closing door 11 first contacts the arm 52 and presses this to start the rotation of the arm 52, and then the first closing door. It is also possible to configure so that the arm 52 is rotated via the second arm 55 when the 11 rides on the second arm 55. Even in this case, since the smooth and quiet operation is realized by the effect of the shape and material of the second arm 55, the same effect as the effect according to the present embodiment described above can be exhibited.

  Further, in the present embodiment, when the door closing order adjuster is installed on the two doors when the front closing door 11 is arranged in the left direction and the rear closing door 21 is arranged in the right direction when viewed from the side of pulling the door. Although illustrated and explained, the door closing order adjuster according to the present invention can be applied even when the front closing door 11 and the rear closing door 21 are attached in reverse to the case of the present embodiment described above. . In such a case, the door closing order adjuster according to the present invention may be reversed and installed on the upper frame, contrary to the case of the present embodiment.

-Second Embodiment-
Next, another embodiment of the door closing order adjuster will be described with reference to FIGS. 5 and 6. FIG. 5 is a partial cross-sectional top view of the door closing order adjuster with the two doors closed in the second embodiment, and FIG. 6 is a cross-sectional view taken along the line BB in FIG. The same parts as those in FIGS. 2 and 4 are denoted by the same reference numerals, and the description thereof is omitted.

  While the first embodiment is configured to engage with the tip of the second arm 55 outside the arm 52, the present embodiment engages with the tip of the second arm 55 inside the arm 52. It is different in that it is a form.

  Specifically, a concave groove 65 is formed on the inner side surface of one side of the arm 52 along the axial direction thereof, and a protrusion 67 projecting outward is formed on one flange 56a of the second arm. Thus, the protrusion 67 is engaged with the concave groove 65 formed on the inner side surface of the arm 52.

  Therefore, the second arm 55 can always maintain a contact state with the arm 52.

-Third embodiment-
Next, another embodiment of the door closing order adjuster will be described with reference to FIGS. FIG. 7 is a partial cross-sectional top view of the door closing order adjuster with the two doors closed in the third embodiment, and FIG. 8 is a CC cross-sectional view of FIG. The same parts as those in FIGS. 2 and 4 are denoted by the same reference numerals, and the description thereof is omitted.

  While the first and second embodiments are configured to be engaged with the distal end portion of the second arm 55 on the outer side or the inner side of the arm 52, in the present embodiment, the pin 72 is provided at the distal end portion of the second arm 55. This is different in that it is a form in which the pin 72 is engaged with a long hole 70 formed in the arm 52.

  Specifically, a long hole 70 penetrating along the axial direction is formed on both side surfaces of the arm 52, and a pin 72 is attached to the flange portion 56 of the second arm so as to connect both the flanges 56a. Thus, the pin 72 is inserted into the long hole 70 formed in the arm 52. A washer 73 is provided between the second arm 55 and the arm 52 as necessary. Further, the pin 72 is attached to the second arm 55 while being prevented from being detached by caulking, a retaining ring or the like.

  Therefore, the second arm 55 can always maintain a contact state with the arm 52.

-Fourth embodiment-
Next, another embodiment of the door closing order adjuster will be described with reference to FIGS. 9 and 10. FIG. 9 is a partial cross-sectional top view of the door closing order adjuster with the two doors open in the fourth embodiment, and FIG. 10 is a partial cross-sectional top view of the door closing order adjuster with the two doors closed. It is. The same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.

  In contrast to the first to third embodiments in which one end side of the second arm 55 made of a flexible material is attached and fixed to the base 41, this embodiment is a second embodiment made of a predetermined member. The difference is that the two arms 75 are attached to the base 41 via an elastic body 77 such as a coil spring that exerts an urging force on the arm 52 side.

  Specifically, a shaft body 78 is formed on the upper surface of the base 41, and the second arm 75 is attached to the shaft body 78 via an elastic body 77 that exerts an urging force on the arm 52 side. The second arm 75 is made of, for example, a metal piece whose tip is folded back, and the tip always contacts the arm 52 by the urging force of the elastic body 77.

  Therefore, the second arm 55 is always urged toward the arm 52 side, so that the contact state with the arm 52 can be maintained.

  Note that the second arm 75 may be formed by filling a member made of plastic or the like with a filling for increasing the strength. Moreover, you may form with the flexible material used in 1st thru | or 3rd embodiment.

-Fifth embodiment-
Next, another embodiment of the door closing order adjuster will be described with reference to FIGS. 11 and 12. 11 is a front view showing the mounting structure of the second arm attached to the base, FIG. 12 is a plan view showing the mounting structure of the second arm attached to the base, and the left side view showing the mounting structure of the second arm attached to the base. FIG. The same parts as those in FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted.

  In contrast to the first to third embodiments in which one end side of the second arm 55 made of a flexible material is attached and fixed to the base 41, this embodiment is directed to the arm 52 side. This is different in that the second arm 80 is attached to the base 41 via a hinge 85 that exerts an urging force.

  Specifically, as shown in FIG. 11, the second arm 80 includes a resin-made rotating body 82 that moves following the rotating state of the arm 52, and a fixing base 84 to which the rotating body 82 is attached. The rotating body 82 and the fixing base 84 are attached via a hinge 85 that attaches the rotating body 82 to the fixing base 84 so as to be tiltable with respect to the arm 52.

  Further, the fixed base 84 is attached to the upper surface of the base 41, and the fixed base 84 has a projecting body projecting from the tip of the base 41 along the surface of the base 41 as shown in FIG. 84a and a pair of shaft bodies 84b formed on the projecting body 84a (on the paper surface, in the vertical direction).

  On the other hand, at the rear end portion of the rotating body 82, a collar portion 83 formed of a pair of collars 83 a is formed so as to sandwich the fixing table 84, and the collar portion 83 is formed on the stationary table 84. A bearing 83b having a hole for inserting the shaft body 84b is formed.

  In addition, inclined surfaces 84c and 83c are formed on the surfaces where the fixed base 84 and the rotating body 82 come into contact with each other. The inclined surfaces 84c and 83c are bent so that the contact pressure increases as the rotating body 82 stands up with respect to the base 41 (or the fixed base 84). The second arm 80 is always biased.

  Therefore, the second arm 80 is always urged toward the arm 52 side, so that the contact state with the arm 52 can be maintained.

It is a partial cross-sectional top view of the door closing order adjuster in a state where two doors are opened. It is a partial cross-sectional top view of a door closing order adjuster in the state where two doors were closed. The figure which shows the operation example of a door closing order adjuster. AA sectional drawing of FIG. It is a partial cross-sectional top view of the door closing order adjuster of the state which the 2 doors closed in 2nd Embodiment. It is BB sectional drawing of FIG. It is a partial cross-sectional top view of the door closing order adjuster of the state which the 2 doors closed in 3rd Embodiment. It is CC sectional drawing of FIG. It is a partial cross-section top view of the door closing order adjuster in a state where the two doors are open in the fourth embodiment. It is a partial cross-sectional top view of the door closing order adjuster of the state which the 2 doors closed in 4th Embodiment. It is a front view which shows the attachment structure of the 2nd arm attached to the base of the door closing order adjuster of the state in which the 2 doors opened in 5th Embodiment. It is a top view which shows the attachment structure of the 2nd arm attached to the base of the door closing order adjuster of the state which the 2 doors closed in 5th Embodiment. It is a left view which shows the attachment structure of the 2nd arm attached to the base of the door closing order adjuster of the state in which the 2 doors closed in 5th Embodiment. FIG. 14A shows a conventional two-door closing order adjuster, FIG. 14A shows a normal state, and FIG. 14B shows a state when an abnormality occurs in the hinge.

Explanation of symbols

11 First door 21 Rear door,
41 Base 42 Shaft body 45, 77 Elastic body 52 Arm 55 Second arm 60 Concave groove 62 Projection 82 Rotating body 83c, 84c Inclined surface 84 Fixing base 85 Hinge

Claims (5)

A base fixed to the upper frame;
An arm that is rotatably installed with respect to the shaft body of the base;
An elastic body that exerts a biasing force on the arm so that the arm protrudes from the upper frame side in the door opening direction;
A second arm fixedly installed on the base so as to be tiltable and having a distal end extending toward the arm;
When the two doors are moved from the open state to the closed state, the arm is disposed in contact with one of the doors to be closed later to restrict the movement of one of the doors, and the other door that is closed first is the first door. The two arms are closed while being pressed, and the second arm is pressed by the other door, so that the arm rotates against the urging force of the elastic body, and one of the doors is closed to close the two arms. A door closing order adjuster for adjusting the closing order of doors,
The door closing rank adjuster characterized in that the second arm always tilts following the rotation state of the arm. At least one of the second arm and the arm has an engaging portion;
The door closing rank adjuster according to claim 1, wherein a tip of the second arm is attached to the arm via the engagement portion.   2. The door closing order adjuster according to claim 1, further comprising an urging force applying unit that constantly urges the second arm with respect to the arm.   The door closing rank adjuster according to claim 3, wherein the biasing force applying means is an elastic body. The second arm is
A rotating body that moves following the rotating state of the arm, and a tilting member that attaches the member to the arm so as to be tiltable.
Comprising
The surface where the member and the tilting member contact is formed as an inclined surface,
The inclined surface is
As the rotating body is erected with respect to the base, the contact force between the rotating body and the tilting member is increased,
The door closing rank adjuster according to claim 1, wherein the second arm is always biased with respect to the arm.

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