JP4648840B2 - 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, Patent Document 1 below discloses a door closing order adjuster having a basic configuration in this type of apparatus. The door closing order adjuster includes an attachment frame as a base, an adjustment rod as an adjustment arm that is pivotally supported by the attachment frame via a shaft body and moves in a horizontal direction, an attachment frame, and an adjustment rod. And a latch rod as a latch arm linked to the rear door, and an adjustment rod as an adjustment arm is provided in a projecting manner so as to come into contact with the opposing position of the rear closing door.

  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, an adjusting arm (adjustment rod) in which the rear closing door is set at an appropriate angle. The front door can be closed first so that the front door can be closed first. When the tip of the front door closes while pressing the body of the latch arm (holding rod), the adjustment arm (adjustment rod) slides inside the rear door at the same time, so the adjustment arm (adjustment)杆) rotates in the closing direction, and the rear closing door is closed while being regulated by the sliding adjustment arm (adjustment rod).

Japanese Patent Publication No.54-9827 JP-A-10-196216

  However, the conventional door closing order adjuster as disclosed in Patent Document 1 has a problem that a collision sound is generated when the latch arm and the front door collide. That is, in the conventional door closing order adjuster, when the two open / close doors are completely closed, only the rear closing door is in contact with the tip of the adjusting arm. There is a gap between them. If the rear door is opened from this state, the front door and the latch arm will collide, and noise will be generated. In addition, the occurrence of noise means that an undesirable load is applied to the door closing order adjuster, and there is a problem in terms of the life of the apparatus.

  In the door closing rank adjuster industry, door closing rank adjusters with various improvements have been proposed in order to solve such conventional problems, but these are sufficient. There is still room for improvement.

  For example, Patent Document 2 discloses a door closing order adjuster that employs a structure in which a protrusion such as a screw is provided on the arm for the purpose of preventing the occurrence of a collision sound due to the collision between the arm and the door. The protrusion is installed to hold the arm in a straight line with respect to the base in a state where the front door is closed. When only the rear door is opened and closed with the front door closed, the arm is supported by the front door through the protrusion, and therefore the arm does not swing. Therefore, according to the door closing order adjuster described in Patent Literature 2, it is possible to prevent the collision between the arm and the front closing door caused by the rotation of the rear closing door, and the generation of the collision sound due to the collision between the arm and the rear closing door. It is supposed to be possible.

  However, it is not preferable to provide a protrusion such as a screw at a place where a repeated load is applied like the door closing order adjuster described in Patent Document 2. Moreover, although this screw also has a role which adjusts the space | interval of an arm and a door, since it cannot adjust in the state which closed the door, there exists a problem also in terms of operativity.

  The present invention has been made in view of the existence of the above-mentioned problems, and its purpose is not only to prevent noise generation, but also to have high operability when adjusting the apparatus and a long life. An object of the present invention is to provide a new door closing order adjuster that can be easily attached and adjusted to any type of two doors.

  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 (11) fixedly installed on the upper frame (10), and an adjustment installed to be rotatable with respect to the shaft (12) of the base (11). An arm (21), a roller (22) rotatably installed at the tip of the adjustment arm (21), an elastic member (32) installed on one end side, and a long hole (33a) on the other end side A latch arm (31) having a guide hole (33) formed by a locking hole (33b), and one end side of the latch arm (31) is adjusted via the elastic member (32). By being rotatably installed at an intermediate position of the arm (21), and the other end side of the latch arm (31) is locked to a locking pin (14) fixedly installed on the base (11). It can move along the shape of the guide hole (33) Thus, when the two doors are open, the latch pin (14) is moved into the latch hole (31) by the movement of the latch arm (31) that receives the biasing force of the elastic member (32). 33b), the adjusting arm (21) is in a protruding state, and the adjusting arm (21) in the protruding state is not closed so that the rear closing door (41) is not closed before the front closing door (42) is closed. By contacting the rear door (41) via the roller (22), the rear door (41) is retracted from the operating range of the front door (42), and the front door (42) presses the latch arm (31). Then, the rear closing door (41) is moved into the operating range of the first closing door (42) by rotating the adjusting arm (21) toward the upper frame (10) against the urging force of the elastic member (32). Door closing order adjuster allowing intrusion The latch arm (31) includes a position adjustment mechanism (35) on the one end side, and the positional relationship with the adjustment arm (21) can be adjusted by operating the position adjustment mechanism (35). It is characterized by being.

  In the door closing order adjuster according to the present invention, the position adjusting mechanism (35) includes a latch arm fulcrum shaft (36) protruding from one end of the latch arm (31) and the latch arm fulcrum shaft (36). ) And a slide piece (37) that is tiltably connected with respect to the slide piece (37), and is installed at an intermediate position of the adjustment arm (21) so that only rotational movement is freely possible. 37) and an adjusting screw (38) capable of adjusting the tilting motion.

  In the door closing order adjuster according to the present invention, the adjustment screw (38) is connected to the adjustment arm (21) only freely using a retaining ring (39). be able to.

  Furthermore, in the door closing order adjuster according to the present invention, the adjusting screw (38) is connected only to rotational movement by caulking the adjusting arm (21). be able to.

  Still further, in the door closing order adjuster according to the present invention, the latch arm (31) is provided with an impact absorbing member (34) at a contact point with the tip closing door (42). it can.

  The summary of the invention does not enumerate all necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  According to the present invention, not only the generation of noise is prevented, but also the operability of device adjustment is high, and it has a long service life and can be easily mounted and adjusted on any type of two doors. A new door closing rank adjuster can be provided. By realizing such a new door closing order adjuster, it becomes possible to reduce costs such as running costs, maintenance costs, work costs, labor costs, and the like with respect to the prior art.

  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.

  FIG. 1 is an external top view illustrating the installation state of the door closing order adjuster according to the present embodiment, and shows a case where two doors are opened and the adjustment arm is in a protruding state. FIG. 2A is an external top view illustrating the installation state of the door closing order adjuster according to this embodiment in a state where two doors are closed. 2B is an external front view of the door closing order adjuster according to the present embodiment shown in FIG. 2A.

  The door closing order adjuster according to the present embodiment includes a base 11 fixedly installed on the upper frame 10, an adjustment arm 21 installed to be rotatable with respect to a shaft body 12 of the base 11, and an adjustment arm 21. A latch arm having a roller 22 rotatably installed at the front end, an elastic member 32 installed on one end side, and a guide hole 33 formed of a long hole 33a and a locking hole 33b on the other end side. 31.

  The base 11 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 10. That is, the base 11 is provided with a plurality of mounting holes 13 in the body portion, and the fixing to the upper frame 10 is realized by using these mounting holes 13. Further, the base 11 includes a shaft body 12 and a locking pin 14 that are formed so that the axial direction extends in the vertical direction when the base 11 is fixedly installed on the upper frame 10. Among these, the shaft body 12 plays a role as a rotation center axis in the rotation operation of the adjustment arm 21 by being rotatably connected to an adjustment arm 21 described later. On the other hand, the locking pin 14 is in sliding contact with the inner wall surface of the guide hole 33 of the latch arm 31 described in detail later, thereby guiding the movement of the latch arm 31 along the shape of the guide hole 33.

  Since the adjustment arm 21 is a member that protrudes from the upper frame 10 side in the door opening direction and supports the rear closing door 41, the adjustment arm 21 is configured as a structural material having a longitudinal section formed in a rectangular shape (see FIGS. 2A and 2B). ). The adjustment arm 21 is rotatably installed with respect to the base 11 via the shaft body 12. Further, a roller 22 is rotatably provided at the tip end side of the adjustment arm 21 so that smooth sliding contact with the rear closing door 41 can be realized.

  One end side of the latch arm 31 is rotatably installed at an intermediate position of the adjustment arm 21 via the elastic member 32, while the other end side is locked by a locking pin 14 fixedly installed on the base 11. Accordingly, the guide hole 33 can be moved along the shape of the guide hole 33. The latch arm 31 includes a position adjustment mechanism 35 on one end side, and the positional relationship with the adjustment arm 21 can be adjusted by operating the position adjustment mechanism 35.

  Here, the position adjustment mechanism 35 having the newest feature among the constituent members of the door closing order adjuster according to the present embodiment will be described. The position adjustment mechanism 35 is a latch arm protruding from one end of the latch arm 31. The fulcrum shaft 36, the slide piece 37 that is tiltably connected to the latch arm fulcrum shaft 36, and the adjustment screw 38 that is installed at the intermediate position of the adjustment arm 21 so that only rotational movement can be freely performed. The latch arm fulcrum shaft 36 is also a member on which an elastic member 32 such as a coil spring that exerts an urging force on the latch arm 31 is installed. The latch arm 31 is rotatable about the latch arm fulcrum shaft 36 as a rotation center. It has become.

  The latch arm 31 has a slide piece 37 that is tiltably connected to the latch arm fulcrum shaft 36, and is fixed to an intermediate position of the adjustment arm 21 via the slide piece 37. The fixed position of the slide piece 37 can be adjusted. In other words, the adjustment screw 38 installed at the intermediate position of the adjustment arm 21 is installed using the retaining ring 39, and only rotational movement is possible at the installation location. By rotating the adjustment screw 38 in either the left or right direction, the slide piece 37 can move along the screw axis direction of the adjustment screw 38. In addition, since the screw thread of the general adjustment screw 38 is cut into a right-hand thread, when the adjustment screw 38 is rotated clockwise when viewed from the front (for example, the direction from the upper side to the lower side in FIG. 2A), the slide The frame 37 moves to the near side (for example, the upper side of the paper in FIG. 2A), and conversely, when rotated counterclockwise, moves to the back side (for example, the lower side of the paper in FIG. 2A).

  Incidentally, although the case where the adjusting screw 38 illustrated in the present embodiment is installed using the retaining ring 39 is illustrated, this connecting means can be changed to any means, for example, to the adjusting arm 21. On the other hand, the adjustment screw 38 can also be freely connected only by performing a caulking process.

  On the other hand, the guide hole 33 provided on the other end side of the latch arm 31 is constituted by a long hole 33a and a locking hole 33b. Among these, for the long hole 33a, as shown in FIG. 2A, the adjustment arm 21 is substantially parallel to the two door surfaces in a state where the front closing door 42 and the rear closing door 41 are completely closed, The two doors are opened to guide the turning operation of the latch arm 31 until the adjustment arm 21 is completely projected. On the other hand, with respect to the locking hole 33b, as shown in FIG. 1, the locking pin 14 is locked in the locking hole 33b when the adjustment arm 21 is completely projected, and the adjustment arm 21 by the latch arm 31 is locked. Support will be realized.

  In addition, since the trunk | drum front part of the latch arm 31 hits a contact location with the front closing door 42, it is suitable to install the impact-absorbing members 34, such as resin and rubber | gum. By employing the shock absorbing member 34, it is possible to eliminate almost all problems such as deformation and breakage of the latch arm 31, and it is possible to prevent the generation of noise.

  The configuration of the door closing order adjuster according to the present embodiment has been described above. Next, the operation of the door closing order adjuster according to the present embodiment will be described with reference to FIGS. 1 to 2B.

  In the initial state in which the two doors are opened, the adjustment arm 21 abuts and supports the rear closing door 41 to prevent the rear closing door 41 from closing before the first closing door 42 (FIG. 1). See state). That is, in the door closing order adjuster according to the present embodiment, the adjustment arm 21 in the protruding state contacts the rear closing door 41 via the roller 22 so that the rear closing door 41 is not closed before the front closing door 42 is closed. Thus, the rear closing door 41 is retracted from the operating range of the first closing door 42 (inside the one-dot chain line arc indicated by the symbol α). Note that the protruding state of the adjusting arm 21 includes the biasing force by the elastic member 32 installed on one end side of the latch arm 31 and the locking pin to the locking hole 33b drilled on the other end side of the latch arm 31. This is realized by 14 anchors. Then, when the front door 42 rotates while drawing a one-dot chain line indicated by the symbol α, the latch arm 31 is installed between the adjustment arm 21 and the front door 42, so that the adjustment arm 21 is latched. The pressure by the front closing door 42 via the arm 31 is received.

  When the first closing door 42 rotates in the closing direction and the pressing to the latch arm 31 proceeds, the latch pin 14 is released from the latch hole 33b and the latch pin 14 becomes long on the latch arm 31 side. The adjustment arm 21 presses against the urging force of the elastic member 32 while sliding to the hole 33a side.

  The front closing door 42 moves in the closing direction by pressing and sliding the front surface of the body portion of the latch arm 31. At this time, resin, rubber, etc. are placed on the front surface of the body portion of the latch arm 31. Since the shock absorbing member 34 is installed, the influence of the load on the door closing order adjuster including the latch arm 31 can be minimized, and further the generation of noise can be prevented. Furthermore, since the latch arm 31 has a gentle contact surface with the first closing door 42, a smooth and quiet closing operation is realized.

  At this time, the adjustment arm 21 slides on the inner side of the rear closing door 41 via the roller 22 simultaneously with the pressing operation of the latch arm 31 by the front closing door 42, so that the adjusting arm 21 moves toward the upper frame 10. And will move. That is, the front door 42 presses the latch arm 31 and rotates the adjustment arm 21 toward the upper frame 10 against the urging force of the elastic member 32, so that the operating range of the front door 42 (one point indicated by the symbol α). The rear closing door 41 is allowed to enter the inside (inside the arc of the chain line). Then, the rear closing door 41 is gradually closed while being regulated by the sliding adjustment arm 21, and finally the closing of the two doors is completed. Then, in the door closing order adjuster according to the present embodiment, as shown in FIGS. 2A and 2B, the adjustment arm 21 is held in a direction substantially parallel to the door surfaces of the front closing door 42 and the rear closing door 41. Then, the adjusting arm 21 is in a non-contact state with the rear closing door 41, and the latch arm 31 is in contact with the first closing door 42 to define a suitable door closing position of the two doors.

  In the door closing order adjuster according to the present embodiment, the positional relationship between the two doors and the door closing order adjuster described above is operated by operating the position adjusting mechanism 35 installed on one end side of the latch arm 31. It is possible to adjust to a suitable state. This adjustment state will be described with reference to FIGS. 3A, 3B, and 3C.

  For example, as shown in FIG. 3A, when the distance A between the two door positions at the time of closing and the mounting position of the door closing order adjuster according to this embodiment is large, the adjusting screw 38 of the position adjusting mechanism 35 is set. By rotating it to the right, the slide piece 37 is moved to the front side (the upper side in FIG. 3A), and the position of the latch arm 31 when the adjusting arm 21 is substantially parallel to the two door surfaces protrudes in the two door directions. Make adjustments. By performing such adjustment, it is possible to perform the installation work of the door closing order adjuster with a certain degree of installation error. Further, the operation of the adjusting screw 38 is very easy because it is installed at a position where a work space can be secured. That is, if only the rear door 41 is opened while the front door 42 is closed, the front side of the adjustment screw 38 is opened, so that the rotation operation of the adjustment screw 38 is very easy. Therefore, according to the door closing order adjuster according to the present embodiment, the installation / adjustment work is greatly facilitated as compared with the conventional device, so that it is possible to obtain the cost reduction effect by shortening the work / adjustment time. it can.

  In addition, as shown in FIG. 3B, the operation of the position adjustment mechanism 35 is performed when the distance A between the two door positions at the time of closing and the mounting position of the door closing order adjuster according to the present embodiment is medium, and As shown in FIG. 3C, even when the distance A between the two door positions at the time of closing and the mounting position of the door closing order adjuster according to the present embodiment is very small, the adjustment can be performed by the method described above. it can. For example, in the case of FIG. 3B, the slide piece 37 may be adjusted so that the slide piece 37 is positioned just in the middle of the adjustment screw 38, and in the case of FIG. Adjustment may be made so that the slide frame 37 comes. By performing the adjustment as described above, even if rough attachment is performed, the positional relationship between the two doors and the door closing order adjuster can be easily maintained in a suitable state.

  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, the intermediate position of the adjustment arm 21 to which one end side of the latch arm 31 is pivotally connected is not limited to the illustrated position, and any position other than both ends of the adjustment arm 21 may be used for the shape of the door, It is possible to adopt an arbitrary configuration according to installation conditions and the like.

  Further, in the present embodiment, when the door closing rank adjuster is installed on the two doors when the front closing door 42 is arranged in the left direction and the rear closing door 41 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 42 and the rear closing door 41 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 10 in the opposite manner to the case of the present embodiment.

  It is apparent from the description of the scope of claims that embodiments with such changes or improvements can be included in the technical scope of the present invention.

It is an external appearance top view which illustrates the installation state of the door closing order adjuster concerning this embodiment, and shows the case where two doors are opened and the adjustment arm is in a protruding state. It is an external appearance top view which illustrates the installation state of the door closing order adjuster concerning this embodiment in the state where two doors were closed. It is an external appearance front view of the door closing order adjuster concerning this embodiment shown in Drawing 2A. It is a figure which illustrates the adjustment state of the door closing order adjuster concerning this embodiment. It is a figure which illustrates another adjustment state of the door closing order adjuster concerning this embodiment. It is a figure which illustrates another adjustment state of the door closing order adjuster concerning this embodiment.

Explanation of symbols

  10 Upper frame, 11 Base, 12 Shaft body, 13 Mounting hole, 14 Locking pin, 21 Adjustment arm, 22 Roller, 31 Latch arm, 32 Elastic member, 33 Guide hole, 33a Long hole, 33b Locking hole, 34 Shock absorbing member, 35 position adjustment mechanism, 36 latch arm fulcrum shaft, 37 slide piece, 38 adjustment screw, 39 retaining ring, 41 rear door, 42 front door.

Claims (5)

A base fixed to the upper frame;
An adjustment arm that is rotatably installed with respect to the shaft of the base;
A roller rotatably installed at the tip of the adjustment arm;
A latch arm in which an elastic member is installed on one end side and a guide hole including a long hole and a locking hole is formed on the other end side;
And one end of the latch arm is rotatably mounted at an intermediate position of the adjustment arm via an elastic member, and the other end of the latch arm is locked to a locking pin fixedly installed on the base. By being configured to be able to move along the shape of the guide hole,
When the two doors are in the open state, the locking pin is locked to the locking hole by the movement of the latch arm that receives the biasing force of the elastic member, and the adjustment arm is in a protruding state,
In order to prevent the rear door from closing before the front door closes, the adjusting arm in the protruding state is brought into contact with the rear door via the roller to retract the rear door from the operating range of the front door,
The door closing allows the rear closing door to enter the operating range of the first closing door by pressing the latch arm and rotating the adjustment arm to the upper frame side against the biasing force of the elastic member. A rank adjuster,
The latch arm includes a position adjustment mechanism on the one end side, and the positional relationship with the adjustment arm can be adjusted by operation of the position adjustment mechanism. The door closing rank adjuster according to claim 1,
The position adjustment mechanism is
A latch arm fulcrum shaft projecting from one end of the latch arm;
A slide piece that is tiltably connected to the latch arm fulcrum shaft;
An adjusting screw that is freely installed only at the intermediate position of the adjusting arm and that can be screwed into the slide piece to adjust the tilting movement of the slide piece;
It is comprised by the door closing rank adjuster characterized by the above-mentioned. The door closing rank adjuster according to claim 2,
The door closing rank adjuster characterized in that the adjusting screw is connected to the adjusting arm only freely using a retaining ring. The door closing rank adjuster according to claim 2,
The door closing rank adjuster according to claim 1, wherein the adjusting screw is connected to the adjusting arm by caulking, so that only the rotational movement can be freely made. In the door closing rank adjuster according to any one of claims 1 to 4,
The door closing order adjuster, wherein the latch arm is provided with an impact absorbing member at a position where the latch arm comes into contact with the front closing door.

Images