JPH09310553A - Sliding door opening and closing damper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and quickly mount a mounting case to the lower surface of a top board of a door mounting body in a sliding door, to only mounting a loading section provided to a washer of a door thereto in a detachable manner, to use damping and holding function of a closed door as opening door assisting function and to also promote outward appearance and safety. SOLUTION: A door 1c is moved in the direction of the arrow S1 for closing the door, and a loading section 8a provided to a washer 8 mounted to the door 1c is loaded to a mounting case 3 mounted to the upper surface 1e', etc., of a lower plate of a door mounting body 1 so that it is capable of loading to a loaded section 7d of a rotatable rotary arm 7 with an arm shaft 7a. A compression spring 4 in the mounting case 3 pushes a spring holding traveling body 5 against a side board 1g side with restoring force, and a link arm 6 pivoting it on a shaft pin 6a transfers torque to the rotary arm 7 through a continuous pivot pin 6b. When door closing motion is continued, since a pivot point P of the continuous pivot pin 6b is turned and moved near to the opeining end 1b from an axial center horizontal line connecting the arm shaft 7a and shaft pin 6a, the rotary arm is turned in the direction of the arrow R1 , and a state of door closing completion is maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door used for sliding a door so that it can be opened and closed by a traveling guide rail provided along an opening end of the door mounting body such as a cabinet. It can be used by simply attaching it to one or both of the lower surface of the plate and the upper surface of the lower plate, so that when the door is opened and closed, it has a mutual relationship with the engagement part of the washer attached to the door. Thus, the present invention relates to a sliding door opening / closing damper that has a function of holding the closed door state, facilitates the operations of closing and opening the door, and can be performed slowly.

[0002]

2. Description of the Related Art Conventionally, in this type of sliding door, the door is simply moved in the width direction to open or close the door. Therefore, if the closing operation is too strong, the closed door moves backward. The door may be opened, or the closed state may not be sufficient, so drafts may invade.In addition, the door may open unintentionally due to external force, or even if you try to open it However, there was an inconvenience that he could not perform the initial operation with heavy and small force.

Therefore, various sliding doors for solving the above-mentioned problems have already been proposed, but all of them are provided with doors, door mountings, springs, pulleys, etc.
Since it is configured to install connecting arms and connecting ropes, not only various parts are required to produce this, but also considerable labor and time are required for its attachment work,
It is so expensive.

[0004]

SUMMARY OF THE INVENTION In view of the problems of the prior art as described above, the present invention provides a sliding door in which a mounting case is provided on the lower surface of the top plate or the upper surface of the lower plate of the door mounting body. The first purpose is to complete the sliding door by a simple operation such that the mutual relation with the washer attached to the door is secured when fixing.

Further, in the mounting case, a spring holding traveling body which is urged laterally by a compression spring and the other end of the link arm pivotally attached thereto are rotatable by an arm shaft. The pivoting base of the washer is pivotally attached to the pivoting arm by the pivot pin so that the mounting part of the above-mentioned washer imparts appropriate turning power to the turning arm at a proper time. The closed state can be maintained via the engaged part of the moving arm, and it is possible to assist the operation with a relatively small force when opening the door. A second object is to eliminate the risk that the external appearance is impaired and the appearance may be impaired, or a fingertip may be caught when the door is opened and closed.

Next, according to a second aspect, in addition to the structure of the first aspect, a damper mechanism capable of applying a braking force when the rotating arm is rotated is additionally provided. The operation at the time of closing is made slower and smoother.

[0007]

In order to achieve the above object, the present invention provides a sliding door door mounting body according to claim 1, which is fixed to one or both of a lower surface of a top plate and an upper surface of a lower plate. And a mounting case that is laterally movable along the opening end of the door mounting body in the mounting case and is biased by the compression spring toward the side plate, which is the closing side of the door mounting body. The stored spring-holding traveling body, the link arm having the end near the side plate, which is the opening door side, pivotally attached to the spring-holding traveling body so that the spring-holding traveling body can be rotated by an axial pin, and the attachment case described above. In the side of the door close to the door, the arm shaft is rotatable, and at the periphery of the arm shaft, the end of the link arm near the door close to the door is pivotally attached by a pivot pin. Rotation base and the rotation And an engaged portion is formed, and the engaging portion provided on the washer of the door in the sliding door is an arm portion that is freely engageable with the engaged arm. And the pivot point position of the link arm by the above-mentioned pivot pin and the pivot base of the pivot arm is
Until the state just before the closing of the sliding door in which the compression spring is in the compressed state, it is closer to the anti-opening end of the door mounting body than the lateral axis line connecting the shaft pin and the arm shaft. Before the door is closed by closing the opening of the door mounting body by the rotation of the arm portion of the rotating arm with the engaged portion, the position of the pivot point is on the axis transverse line. In addition, the pivot point moves toward the opening end of the door mounting body rather than the lateral axis line toward the door closing completion state due to the increase of the pressing spring. We are trying to provide a damper for opening and closing the sliding door, which has been selected.

In addition, in the case of claim 2, in addition to the structure of claim 1, the arm shaft is provided in the attachment case and has a braking force by viscous fluid in each direction of closing and opening of the door. The content is that it is connected to the rotary shaft of the damper mechanism.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The damper for opening and closing a sliding door according to claim 1 of the present invention will be described below in detail with reference to the embodiment shown in FIGS. 1 to 4. The door 1c extends along the opening end 1b of the arrow S in FIG.
₁ and S ₂ can travel freely in the lateral direction, and of course, at this time, the door 1c has various guide rails 1d for traveling as illustrated in FIG.
By this, a predetermined opening / closing movement is restricted. Therefore, if the door 1c is moved in the directions of the arrows S ₁ and S ₂ , the state immediately before the closing of the door of FIG. 1A is changed to the state of the closing door of FIG. 2 and the closing completion position of the closing of FIG. It is possible to reciprocate the traveling stroke until reaching.

The present invention relates to the above-mentioned sliding door D, and to a damper as a support body capable of smoothly opening and closing the door 1c. 4, a top plate lower surface 1e shown in FIG.
An attachment case 3 fixed with a screw 2 or the like at a corner portion or the like formed by the opening 1b on the lower plate upper surface 1e 'and the side plate 1f on the door opening side disclosed in FIG. 2, and this attachment case 3
Inside, the opening / closing traveling direction of the door 1c, that is, the opening end 1
The spring holding traveling body 5 is movable laterally along b and is housed in a state in which it is biased toward the side plate 1g on the door closing side by the required number of compression springs 4.

Here, as an example of the above-mentioned attachment case 3, as shown in FIG. 3, a reinforcing cover plate 3a attached to one or both of the lower surface 1e of the top plate and the upper surface 1e 'of the lower plate as described above. , 3d in the same drawing, and 3c in the same figure, is an attachment hole 3d formed in the reinforcing cover plate 3a for the screw 2.
Is a through hole formed in the end plate portion 3e of the reinforcement cover plate 3a, and 3f is an attachment screw hole formed in the terminal plate portion 3g of the attachment case body 3b. The attachment case is attached to the reinforcement cover plate 3a. With the body 3b fitted inside, a screw hole 3 not shown
The attachment case 3 is integrally formed by screwing and fastening the attachment case 3d into the attachment screw hole 3f.

Further, in FIG. 3, reference numeral 3h indicates side plate portions 3j standing on both sides of the above-mentioned end plate portion 3e of the reinforcing cover plate 3a along the attachment back plate 3i, and the attachment case body 3j. 3b shows the inner side plate portions erected from both side ends of the above-mentioned terminal plate portion 3g along the case front plate 3k, and thus the spring holding traveling body 5 is freely movable up and down in the attachment case body 3b. A storage space 3m that fits inside is defined.

Further, a pair of through holes 3n formed in the side plate portion 3h and an inner through hole 3p formed in the inner side plate portion 3j have one spring pressing rod 3q fixed therethrough. The upper end of the compression spring 4, which will be described later, is pressed.

Next, the spring holding traveling body 5 will be described. In the embodiment shown in FIG. 3, the front wall 5a, the back wall 5b,
The left and right side walls 5c are formed into a box-like shape having a lower end opening, and the pair of side walls 5c and the partition wall 5 attached to the side walls 5c are provided.
By d, three spring insertion voids 5e are formed in FIG. 3, and the three compression springs 4 housed therein are
As described above, the lower part thereof is brought into contact with the spring pressing rod 3q, and the upper part thereof is provided on the side wall 5 of the spring holding traveling body 5.
The pressure receiving rod 5f laterally fixed to c is pressed. Therefore, the spring holding traveling body 5 is located in the storage space 3m,
The side wall 5c slides on the inner wall surface of the inner side plate portion 3j of the attachment case 3 to compress the compression spring 4, and the lower side in FIG. 3 and the upper side where the compression spring 4 is in an extended state. On the other hand, in FIG. 3, it is movable up and down.

In the present invention, the lower end portion of the link arm 6 shown in FIG. 3 is pivotally attached to the spring holding traveling body 5 so as to be rotatable by the shaft pin 6a. The upper part of 3 is rotatable by an arm shaft 7a, and is located around the arm shaft 7a. The upper end of the link arm 6 is moved to a rotary base part 7b of the rotary arm 7 by a pivot pin 6b. Being coordinated. The arm portion 7c of the rotary arm 7 extending from the rotary base portion 7b is provided with an engaged portion 7d at its tip, and as will be described later in detail, the engaged portion 7d.
Is a washer 8 attached to the back surface of the door 1c with a screw or the like.
The engaging portion 8a is engaged so that it can be engaged and disengaged when the opening / closing door operates.

Here, in the illustrated embodiment, as the engaged portion 7d of the arm portion 7c, a long groove formed from the tip portion toward the rotation base portion 7b is adopted, while the washer 8 is provided. As the engaging portion 8a, an engaging pin that can freely move in and out of the long groove is used, but it is also possible to use a long groove that is not fitted, or a long groove may be provided in the washer 8 and the engaging pin may be provided in the arm portion 7c. You may make it project.

Here, the link arm 6 is connected to the shaft pin 6a.
Since it is pivotally attached to the spring holding traveling body 5 by means of the vertical holding groove 5 in the embodiment of FIG. 3, it is not a simple through hole at the center of the upper end of the spring holding traveling body 5.
g is formed in the front wall 5a and the rear wall 5b in the state of the upper end opening, and the shaft pin 6a is engaged with the vertically elongated groove 5g so as to be vertically movable. Also, the rotating arm 7
The upper end of the link arm 6 is inserted into the gap 7e formed in the thickness direction, and in this state, the link arm 6 is pivotally attached to the pivot base 7b by the pivot pin 6b.

Further, the above-mentioned relationship between the rotating arm 7 and the arm shaft 7a is such that the rotation of the rotating arm 7 is transmitted to the arm shaft 7a. The projection 7f has a shaft hole 7 formed in the rotation base 7b.
It is constructed so as to be engaged with the locking recess 7g 'of g. In relation to claim 2, the arm shaft 7a is a rotary shaft of a damper mechanism 9 provided on the upper part of the mounting case 3. It is connected coaxially with 9a. Therefore, in the illustrated example, as will be described later in detail, the rotating arm 7 rotates, and the braking force based on the viscous fluid (not shown) in the damper mechanism 9 causes the door 1c to close or open. Alternatively, it is possible to exert a buffering action in each direction of opening and closing.

The damper mechanism 9 itself shown in FIG. 3 is the same as the conventional one. In FIG. 3, 9b is a damper bearing portion provided at the bottom of the attachment case body 3b, and 9c is a rotating shaft. The movable disk 9a is engaged with the movable disk 9a and rotatable, 9d is a fixed disk adjacent to the movable disk 9c and prevented from rotating, 9e and 9f are O-rings, and 9g is a lid of the damper mechanism 9. Then, with a set screw (not shown), it is fixed through the stop hole 3r of the reinforcing cover plate 3a.

Therefore, the above-described structure will be described in more detail with reference to FIGS. 1 and 2. In the opened state of the door 1c, the door 1c is arranged near the side plate 1f. The above-mentioned compression spring 4 that is mounted is in a compressed state, and further, the pivot pin 6 that is close to the side plate 1g on the closing door side.
rotation base 7b of the link arm 6 and the rotation arm 7 by b.
As can be understood from FIG. 1 (A), the pivot point P with respect to is parallel to the opening end 1b connecting the shaft pin 6a near the side plate 1f and the arm shaft 7a near the side plate 1g. It is selected so as to be located closer to the door 1c, that is, closer to the anti-opening end apart from the opening end 1b than to the laterally tip L.

Therefore, in the door open state, the strong restoring force of the compression spring 4 is transmitted to the link arm 6 through the spring holding traveling body 5, and the link arm 6 concerned.
Is connected to the pivot base 7 of the pivot arm 7 by the pivot pin 6b.
The turning force in the direction of the arrow R _{1 is applied} to b, and as a result, the arm portion 7c rotates until it hits the attachment case 3, and at this time, the arm portion 7c forms the long groove described above. The engaged portion 7d is open in the direction of the side plate 1f.

Then, when the door 1c is closed in the direction of the arrow S _{1, the} washer 8 attached to the door 1c, the engagement pin as the engagement portion 8a in the illustrated example, is moved to the arm portion 7c. Of the attachment case 3 from the opening 7h toward the terminal end 7i.
Since it was傾設to be a deviation, a rotational force when proceed with closing of the door 1c from such as illustrated closing state immediately before the rotating arm 7 in the direction of the arrow R ₂ are opposite to the arrow R ₁ Will be received.

Therefore, when the door 1c is on the verge of closing the door as shown in FIG. 2 before the door is in the closed state as shown in FIG. 1 (B), the position of the pivot point P is the lateral axis of the axis. Since it will be rotated and displaced up to L, and at this time, it will be in a so-called imaginary state, so that the turning force with respect to the rotation base portion 7b does not act in any direction. Next, when the point of consideration is passed, an arrow R is formed on the rotation base 7b as shown in FIG. 1 (B).
_{Since the} turning force in _two directions is transmitted, and the compression spring 4 gradually increases in length at this time, in the door closing completion state of FIG. The point pivotally shifts toward the opening end 1b of the lateral axis L, so that the engaged portion 7d of the arm portion 7c moves the engaged portion 8a of the washer 8 in the direction of the arrow S ₁ which is the closing direction. Since it is pushed, the pushing force is not so large because the compression spring 4 is in the extended state, but the pushing force is appropriate.
A force for holding the closed state can be applied to c.

As a result, if the door closing operator closes the door from the state immediately before the door is closed in FIG. 1A to the state just before the door is closed in FIG.
Since the state is held by the restoring force of the compression spring 4 in the state where the door is closed as shown in (B), the door 1c becomes stationary due to the incomplete closing of the door, or the door 1c unintentionally fluctuates and opens in the opening direction due to an external force. There is no need to open the door.

Therefore, if the door 1c is opened in the direction of the arrow S ₂ from the state shown in FIG. 1 (B), a slight opening operation force is required to open the door to the state shown in FIG. If the door is opened until it passes, the pivot point 6b is pivotally displaced to the side opposite to the door side, that is, closer to the anti-opening end than the lateral line L of the axial center. The door opening operation can be performed relatively easily by being assisted by this, and as a result, the engaging portion 8a is separated from the engaged portion 7d and the normal door opening operation is continued, thereby completing the door opening operation. Can be made possible.

Next, the damper for opening and closing the sliding door according to claim 2 will be described. In this case, as clearly shown in FIG. 3 in the structure of the above claim, the arm shaft 7a has the mounting case 3 as described above. The rotary shaft 9a of the damper mechanism 9 which is provided in the door 1c and has a braking force by viscous fluid in each direction of closing or opening the door 1c is connected to the arm shaft 7a.

At this time, if the damper mechanism 9 exerts a braking force only when the door is closed by a not-shown one-way clutch or the like, the braking force acting in the closed state causes the braking force to be more than that in the case of claim 1. Also, the door can be closed more slowly and smoothly. Of course, the braking force of the damper mechanism 9 may be exerted both when the door is closed and when the door is opened. In this way, when the door is closed, the restoring force of the compression spring 4 that assists this is the above-mentioned control. Although it will be suppressed by power, it may be adjusted so that the assisting force for opening the door is large as a whole, of course,
In this case, the one-way clutch as described above becomes unnecessary.

[0028]

Since the present invention is constructed as described above, according to claim 1, the door is attached to one or both of the lower surface of the top plate and the upper surface of the lower plate of the attachment case. Can be used as a sliding door by simply attaching a washer that has an engaging part, and it can be used as a sliding door, and the compression spring etc. are not exposed, so the appearance is good and there is no risk of pinching your fingertips. It is possible to open and close this kind of door easily and smoothly by using an appropriate braking force. In the second aspect, since the damper mechanism is properly incorporated in the first aspect, the opening and closing movement of the door can be made smoother.

[Brief description of drawings]

1A and 1B of a damper for opening and closing a sliding door according to claim 1 and claim 2 of the present invention, each of which is a cross-sectional plane view in which a part of the damper is shown just before the door is closed, and a part where the door is completely closed is shown. FIG.

FIG. 2 is a schematic cross-sectional plan view showing a state in which a door is on the verge of being closed, which is an intermediate closed state between (A) and (B) of FIG.

FIG. 3 is an exploded perspective view showing an embodiment of a damper for opening and closing a sliding door according to the present invention.

FIG. 4 is a schematic perspective view of a main part showing a door open state showing a use state of the sliding door opening / closing damper according to the present invention.

[Explanation of symbols]

 1a Door mounting body 1b Opening end 1c Door 1e Top plate lower surface 1e 'Lower plate upper surface 1f Open door side plate 1g Closed door side plate 3 Mounting case 4 Compression spring 5 Spring holding traveling body 6 Link arm 6a Axis pin 6b Connecting shaft Pin 7 Rotating Arm 7a Arm Shaft 7b Rotating Base 7c Arm Shaft 7d Engagement Part 8 Washer 8a Engagement Part 9 Damper Mechanism 9a Rotating Axis D Sliding Door L Axis Horizontal Lateral Line P Pivoting Point

Claims (2)

[Claims] 1. An attachment case fixed to one or both of a lower surface of a top plate and an upper surface of a lower plate of a door attachment of a sliding door, and an opening end of the door attachment of the attachment case. Along with a spring holding traveling body that is housed in a biased state toward the side plate that is the door closing side of the door mounting body by a compression spring, and the spring holding traveling body is rotated by an axial pin. A link arm having an end portion near the side plate that is the opening side freely pivoted, and a side arm near the side plate on the closing door side in the attachment case, which is rotatable by an arm shaft, and the arm shaft. Around the periphery of the rotary base, the end of the link arm closer to the side plate closer to the side plate is pivotally attached by the pivot pin, and extends from the rotary base to form the engaged portion. And the sliding door on the affected part The engaging portion provided on the washer of the door includes a rotating arm composed of an arm portion that is freely attachable, and the link arm and the rotating base portion of the rotating arm are pivotally attached by the pivot pin. The point position is closer to the anti-opening end of the door mounting body than the lateral line of the axial center connecting the shaft pin and the arm shaft until the state just before the closing of the sliding door in which the compression spring is in the compressed state, and the washer The engaging portion of the rotating arm is rotated by the engagement with the engaged portion in the arm portion of the rotating arm,
Before the door is closed at the opening of the door mounting body, the pivot point position is present on the lateral line of the axial center, and further toward the closing of the door due to the increase of the pressing spring. A damper for opening and closing a sliding door, wherein the pivot point is selected so as to shift toward an opening end of a door mounting body rather than a lateral axis line. 2. An attaching case for a door attachment of a sliding door, which is fixed to one or both of a lower surface of a top plate and an upper surface of a lower plate of the sliding door, and an opening end of the door attachment in the attaching case. Along with a spring holding traveling body that is housed in a biased state toward the side plate that is the door closing side of the door mounting body by a compression spring, and the spring holding traveling body is rotated by an axial pin. A link arm having an end portion near the side plate that is the opening side freely pivoted, and a side arm near the side plate on the closing door side in the attachment case, which is rotatable by an arm shaft, and the arm shaft. Around the periphery of the rotary base, the end of the link arm closer to the side plate closer to the side plate is pivotally attached by the pivot pin, and extends from the rotary base to form the engaged portion. And the sliding door on the affected part The engaging portion provided on the washer of the door includes a rotating arm composed of an arm portion that is freely attachable, and the link arm and the rotating base portion of the rotating arm are pivotally attached by the pivot pin. The point position is closer to the anti-opening end of the door mounting body than the lateral line of the axial center connecting the shaft pin and the arm shaft until a state immediately before the opening and closing of the sliding door in which the compression spring is in a compressed state, Before the door of the washer is rotated by the engagement with the engaged portion of the arm portion of the rotating arm and the door is closed at the opening of the door mounting body, the pivot point position is set. Is present on the lateral axis line, and further toward the completion of the closing of the door due to the increase of the pressing spring, the pivot point is closer to the opening end of the door mounting body than the lateral axis line. The arm shaft is installed in the mounting case and Forming or closing the sliding door opening and closing damper, characterized in that it is connected to the rotation shaft in each direction to the damper mechanism having a braking force by the viscous fluid.