JP2574103B2 - Support structure for swing opening and closing body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is opened by swinging the opening and closing member
Swing open in the closed position on the fixed frame with the opening to be closed
Mounting with a retractable member that can move freely in the thickness direction of the closed body
A pivoting opening / closing body at the tip of the retractable member.
Pivotally open and close freely, and
Move the retracting member between the end and the mounting part
A reciprocating means having a rotary operating body is provided;
With the opening and closing movement of the moving opening and closing body, the retracting member is protruded and moved,
In addition, the retractable member is pulled with the closing swing of the swing opening / closing body.
In order to retreat, the swing open / close body and the rotary operation body
It relates to a support structure of the oscillating opening and closing member the interlocking means are set only for interlocking.

[0002]

2. Description of the Related Art Conventionally, this type of swinging opening / closing body support structure and
Then, the moving means is provided at the base end of the moving member.
A driven gear as a rotating operation body provided, and
And a rack formed with the driven gear and meshing with the driven gear.
And the interlocking means is pivoted by the pivoting opening / closing body.
A driving gear that rotates in conjunction with the driving shaft, and a rotation of the driving gear.
There is a relay gear that transmits to the driven gear
(See, for example, JP-A-3-137379). this
In the conventional swing opening / closing body support structure configured as described above,
The rotation of the driving gear linked with the opening and closing movement of the dynamic
When transmitted to the driven gear via the relay gear, this driven gear
A rolls along the rack and the retractable member is in the closed position
The swing opening / closing body protrudes in the thickness direction and swings.
Move the support shaft forward from the front of the swinging
Be moved. Therefore, the front of the swinging opening and closing body in the closed posture
Even if the front surface of the fixed frame is configured to be flush,
Or, the right and left swing provided adjacent to the front of the fixed frame
The front surfaces of the dynamic opening and closing bodies are configured to be flush when closed.
180 degrees swing open from the closed posture
It is possible to make the swinging opening and closing
If the door is a swinging door, collect the swinging door in the open position.
It can be positioned parallel to the front of the furniture
As a result, the swinging open / close body in the open position
May interfere with the storage and unloading of goods
Resolving the inconvenience of obstructing traffic ahead
it can.

[0003]

In this type of supporting structure of the swinging opening and closing body, the mounting condition such as the shape of the fixed frame is required .
The mounting position of the mounting portion with respect to the fixed frame
It may change depending on the moving direction of the member.
The mounting position of the mounting part moves away from the opening position of the fixed frame
Between the rotation axis of the driving gear and the rotation axis of the driven gear.
The distance also becomes longer. Therefore, conventionally, the distance between the shaft centers is
A gear diameter of the relay gear and the driven gearing in order to absorb the increased
Increase the number of relay gears or increase the number of relay gears.
It is necessary.

However, the relay gear and the driven gear
If the gear diameter of the gears is increased to absorb fluctuations in shaft center distance
In this case, not only the gear but also the mounting
There is a problem that the entire support structure of the dynamic opening / closing body becomes large and heavy.
You.

In addition, the number of the relay gears is increased to increase the shaft center.
When absorbing fluctuations in the distance, set the driven gear
In a state where it can be rotated in the
And as a result a large number of gears and
A bearing part for supporting each is required, and the number of parts and
Increased manufacturing cost and weight due to increased assembly man-hours
There is a problem to be introduced.

The object of the present invention has been made in view of the above situation.
By devising the structure of the interlocking means.
Open the swinging opening and closing body over the same range as before.
Mounting part
Rotation operation from the swing axis of the swing opening / closing body by changing the position
Even if the distance to the rotation axis of the body increases, the swing
Suppress increase in size, weight, and increase in manufacturing cost of holding structure
Another object of the present invention is to provide a swinging opening / closing body support structure that can easily cope with the problem.

[0007]

SUMMARY OF THE INVENTION The present invention feature configuration of the support structure of the oscillating opening and closing member by is opened and closed by the swinging closing member
The swinging opening and closing body in the closed position is
A mounting part with a retractable member that can move back and forth in the thickness direction
Swinging the swinging opening and closing body at the tip of the retractable member
It pivots openably and closably, and with the base end of the retractable member.
Rotational operation between the mounting part and the
Providing withdrawing / moving means provided with a work piece,
The retractable member is protruded and moved with the swing of the body, and
Moves the retractable member with the swing of the swinging opening and closing body
The swinging opening and closing body and the rotary operation body are linked
Supporting structure of the swinging opening and closing body provided with interlocking means
And the interlocking means is interlocked with the pivot of the pivoting opening / closing body.
A first chain wheel that rotates, and a second wheel that rotates in conjunction with the rotary operating body.
A two-wheel sheave and a transmission for transmitting the rotation of the first sheave to the second sheave.
The chain that is wound on both chain wheels and the chain between both chain wheels
And a guide portion for guiding the movement of the body .

[0008]

According to feature configuration of the present invention, rocking in a closed position
When the movable opening / closing body is opened and swung, the swinging pivot of the swing opening / closing body becomes
The interlocking first chain wheel rotates and is guided by the guide section.
While the chain moves, the first wheel rotates through the chain.
And transmitted to the second chain wheel, and the rotation of the second chain wheel
When the rotary operating body of the moving means moves, the moving member moves.
Protruding movement, swing open while pulling swing open / close body forward
Can be released. Moreover, the mounting position of the mounting part
The rotation of the rotary operation body from the swing axis of the swing
Distance to the axis of rotation, in other words, the axis of rotation of the first chainwheel
When the distance between the shaft centers from the second shaft to the rotating shaft of the second chainwheel increases
However, this increase in the distance between the axes can be changed by changing the length of the chain.
Can be absorbed.

[0009]

Therefore, for example, the swing open in the closed posture
The front of the closed body and the front of the fixed frame are flush with each other.
Under the condition that the swinging opening and closing body is
Not only can swing open the first chain
The distance between the axis of rotation of the car and the axis of rotation of the second chain wheel is determined.
Even if it changes due to attachment conditions, etc.,
The size of the entire support structure of the swinging opening / closing body has been increased and the weight has been increased.
And easily respond while suppressing the rise in manufacturing costs.
be able to.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the door is opened and closed by a swinging opening and closing body 1 .
Frame 2 of the storage furniture as a fixed frame with an opening
On the other hand , a hinge L and a hinge R are shown as a support structure of a swing opening / closing body that supports the door 1 so as to swing freely. The hinge L and the hinge R have the same structure except that they are formed symmetrically on the left and right, and when supporting the door 1 with respect to the opening frame 2 as shown in FIG. It is used as a pair. Hereinafter, the hinge L will be mainly described.

The hinge L is attached to the opening frame 2 side.
A mounting portion B, and the mounting portion B, and is composed of a projecting and retracting movable projecting and retracting member A in the thickness direction of the <br/> door 1 in a closed position. The mounting portion B is formed in a box having an opening 3 on the upper surface, and is provided with a pair of guide plates 4 also serving as side walls of the box as shown in FIGS. The edge of <br/> opening 3 of the mounting portion B, and along the projecting and retracting direction of the extending and retracting member A rack teeth 3a of the bite viewed <br/> fit portion are formed. Mounting
The front wall of the portion B is provided with a through hole 5 through which the retreat member A penetrates.

Inside the mounting portion B, a pair of synthetic resin blocks 6 serving as guided members slidably contacting the guide plate 4 are provided. The base end of the retractable member A is attached to the synthetic resin block 6. Therefore, the moving direction of the moving member A is guided by the guide plate 4.

The retractable member A has a pan-shaped lower frame 7 having a transverse cross-sectional shape.
And an upper lid 8 that closes an upper opening of the lower frame 7, is formed in a long shape having a bent front end portion, and has a hollow interior. The flange portions 7a and 8a provided at the base end of the retractable member A are fitted into the synthetic resin block 6 as shown in FIG. 4, and as shown in FIG. Is fixed to the synthetic resin block 6.

In a circular internal space formed at the top end of the retractable member A, which is circular when viewed from above, the door 1 is rotated in conjunction with the swing support shaft 1b.
The first sprocket 10 is accommodated therein. The sprocket 10 is rotatably supported inside the retractable member A by a shaft portion 10 a formed on the sprocket 10 being penetrated by the lower frame 7 and the upper lid 8. At the center of the shaft portion 10a, there is provided a square hole 10b into which the square pivot support shaft 1b provided on the door 1 is fitted. Therefore, the door 1 has the swing support shaft 1b having the square hole 10b.
The sprocket 10 is configured to be pivotally supported by the distal end portion of the retractable member A by being fitted into the door b, and to rotate integrally with the door 1.

A sprocket 11 as a second chain wheel is housed in a circular internal space formed at the base end of the retractable member A when viewed from above. As shown in FIG. 4, the upper part of the sprocket 11 in the rotation axis direction penetrates the upper lid 8, and
The end of the penetrated sprocket 11 has an extension member A
A gear portion 11a is formed as a rotary operation body for the retracting operation. Also, at the center of the sprocket 11 ,
A pivot pin 12 having a swaged portion 12a at the lower portion is provided.
The sprocket 11 and the gear portion 11a are rotatably supported by the retractable member A by the swaged portion 12a of the pivot pin 12 that fits into the shaft.

As shown in FIG. 1, the pinion teeth 11b formed on the gear portion 11a are provided so as to mesh with the rack teeth 3a of the mounting portion B, thereby moving the gears 11a into and out.
A rack-and-pinion mechanism as a moving means is configured.

As shown in FIG. 3, a chain 13 as a single chain is wound around the sprocket 10 and the sprocket 11. The chain 13 is mounted on a chain guide 7b as a guide for guiding a chain-like body formed over the distal end portion and the base end portion of the lower frame 7, that is, both chains 13 are provided by the chain guide 7b. Sp
The chain 13 is housed in the internal space of the retractable member A in a state where the movement between the rockets 10 and 11 is guided, so that the chain 13 is held in a predetermined posture. Accordingly, the chain 13 is configured to transmit the rotation of the sprocket 10 to the sprocket 11 in both directions of pulling and pushing, and the sprocket 10 and the sprocket 1
1, the chain 13, and the chain guide 7b constitute an interlocking unit that interlocks the door 1 and the gear portion 11a.

FIG. 3 shows the hinge L in a state where the retracting member A is retracted. When the door 1 is opened and swung in this state, the sprocket 10 at the tip is rotated, the sprocket 10 winds up the chain 13, and the sprocket 11 is rotated. Therefore, the gear 11a is rotated and the rack and -The retractable member A is protruded and moved by the pinion mechanism. In FIG. 1, the door 1 is moved from the closed
The hinge L is shown in an open position rotated by 80 degrees. Door 1 is a front surface 1a of door 1 in a closed position.
It is located at a position protruding forward of the storage furniture, and is in a posture to overlap with the adjacent door 1.

On the other hand, when the door 1 is closed and oscillated at the hinge L shown in FIG. 1, the sprocket 10 at the tip is rotated, the sprocket 10 draws out the chain 13, and the sprocket 11 is rotated. Is rotated to move the retracting member A back and forth.

Note that, as shown in FIG.
A guide member for preventing biting of the chain 13 in the case of pushing and turning is provided in a gap formed between the sprocket 10 and the sprocket 11 and the chain guide 7b at the distal end side and the proximal end side of the b. 8b and 8c are provided. As shown in FIG. 4 (guide member 8b is not shown), guide members 8b and 8c are formed as protrusions of upper cover 8 on the inner surface side of upper cover 8 in a state of being located above the teeth of the sprocket. , The bending of the chain 13 is restricted, and the sprocket 1
The winding around the 0 and the sprocket 11 and the introduction into the chain guide 7b are performed smoothly.

[Another embodiment] Rotational operation of the retreating means provided at the base end of the retreating member A
The body may be composed of a link member 14, as shown in FIG. The link member 14 is fixed to the sprocket 11 so as to rotate integrally with the sprocket 11, and a fixed shaft 15 provided in the mounting portion B penetrates into an elongated hole 14a provided in the link member 14. Therefore,
As the door 1 is opened and closed, the link member 14 is operated to rotate, so that the retractable member A can be extended and retracted with respect to the mounting portion B. That is, the link member 1
4 and a moving means for retreating with the elongated hole 14a and the fixed shaft 15
Is configured.

The rotary operation body of the moving means is shown in FIG.
As shown in FIG. Cam 16
Is fixed to the sprocket 11 so as to rotate integrally with the sprocket 11. Further, the protruding direction of the proximal end, provided with a spring 17 for biasing the projecting and retracting member A retirement moving direction, the cam surfaces 16a of the cam 16 is always taken
It is configured to be pressed against the side wall of the attachment portion B. Therefore, as the door 1 is opened and closed, the cam 16
Is rotated so that the retractable member A is moved back and forth with respect to the mounting portion B. Toes
The cam 16 and the spring 17 move
It is configured.

The swinging opening / closing body is not limited to the door 1 such as storage furniture, and the fixed frame is not limited to the opening frame 2 such as storage furniture. Further, the swinging opening and closing body is not limited to the horizontal opening, and may be a vertical opening such as a dashboard.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an entire configuration of a hinge in a state where a door is in an open position;

FIG. 2 is a front view showing storage furniture.

FIG. 3 is a cross-sectional view showing the inside of a retractable member.

FIG. 4 is a longitudinal sectional view showing the inside of the retractable member.

FIG. 5 is a plan view showing a hinge according to another embodiment.

FIG. 6 is a plan view showing a hinge according to another embodiment .

[Explanation of symbols]

Reference Signs List A Attaching / removing member B attaching portion 1 Swinging opening / closing body 1b Swing support shaft 2 Fixed frame 7b Guide 10 First chain wheel 11 Second chain wheel 11a Rotating body 13 Chain body 14 Rotating body 16 Rotating body

Claims (1)

(57) [Claims] 1. An opening and closing device which is opened and closed by a swing opening and closing body (1) .
A fixed frame having a mouth (2), Bei the thickness direction projecting and retracting movable projecting and retracting member of the oscillating opening and closing member in the closed position (1) (A)
E was attaching portion (B) is provided, the tip of the advancing and retracting member (A), is pivoted the swing closing body (1) to swing open freely
And a base end of the retractable member (A) and a mounting portion.
Between (B) and the time for moving the retracting member (A).
Ingress and egress moving means provided with a turning operation body (11a, 14, 16)
And, with the swing of the swinging opening and closing body (1).
Is projected moving out retraction member (A) Te, and retire move the oscillating opening and closing member (1) out with the closing swinging retraction member (A)
In order to make the swing opening / closing body (1) and the rotary operating body (11a, 14, 16) interlocking means provided,
A supporting structure for a swinging opening / closing body, wherein the interlocking means is provided on a swinging support shaft (1) of the swinging opening / closing body (1).
b) a first chain wheel (10) that rotates in conjunction with the rotation of the first chain wheel (10);
The second chain wheel (1) that rotates in conjunction with the body (11a, 14, 16)
1) and the rotation of the first chain wheel (10)
Wound around both chain wheels (10) and (11) to transmit to 1)
(13) and both chain wheels (10), (1
Guide section for guiding the movement of the chain-like body (1) between 1)
And (7b) a supporting structure for the swinging opening and closing body.