JP2003214024A - Mounting structure of door body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a door body wherein a projection to a fan-shaped space formed between a rear lower end of the door body and a front lower end of a box opening part, of a linear telescopic member such as a piston rod of a dash pot, is reduced when the door body is opened to supply commodities and the like. <P>SOLUTION: In this mounting structure of the door body, the door body is connected to the opening part of a casing by a hinge, a door body opening and closing damper mechanism and a door body rotating energizing mechanisms are mounted, and the opening and closing damper mechanisms and/or the door body rotating energizing mechanism are composed of linear telescopic members and mounted inside of the casing. This structure comprises a crank 30 having a fixed contact E at the inside with respect to a rotating motion line L in the fully closed state of the door body 12, and a slider 32 connected to a rotary contact F of the crank 30 to be reciprocated and moved by a predetermined distance in parallel with the rotating motion line L on a rotating face of the door body 12. The telescopic member 31 is expanded and contracted coaxially with the slider 32. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a door body hinged (pivotally) coupled to an opening of a box body to open and close a door body and / or a damper mechanism.
Alternatively, a door rotation urging mechanism is provided, and the opening / closing damper mechanism and / or
Alternatively, the door body rotation urging mechanism relates to a door body mounting structure which is composed of a linear elastic member and is mounted inside the box body.
Especially when it is necessary to install the linear elastic member inside the box as described above from the standpoint of preventing mischief, corrosion, etc. installed outdoors, such as the opening / closing door of a vending machine (bender box). The present invention relates to a door body mounting structure suitable for securing an opening / closing angle close to 180 ° or more.

Here, the "door body" is a broad concept including not only "door body" arranged vertically but also "lid body" arranged horizontally or diagonally.

[0003]

BACKGROUND ART The structure of a door body in a vending machine is, for example, as shown in FIG. 1 in which the inside of the box is partially omitted.

The door 12 is the top plate 1 of the vending machine box 14.
6 and the bottom plate 18 to the upper and lower support brackets 20 respectively
The lower support bracket (not shown) is hinged.

A stopper mechanism for maintaining (fixing) the open state of the door body 12 at the fully open position and the intermediate position is formed on the bottom plate 18 side of the box 14 as shown in FIG. (3 in the figure) 24
A guide groove 24 having a, 24b, and 24c and an engagement pin 26a that slides (slides) in the guide groove 24 are provided at a front coupling point, and are pivotally coupled (hinge coupling) to the lower side of the door body 12. The guide pin 26 is formed of a guide groove 26, and the engaging pin 26 a is provided in the stopper recess 24 at the end of the guide groove 24 on the side of the hinge portion of the door body.
It was constituted by engaging with a, 24b, and 24c.

An opening angle of 130 ° at the fully opened position of the door body 12 for refilling products for sale (such as beverage cans).
It is desirable to be able to do more than near.

On the other hand, when opening and closing the door, an opening and closing damper mechanism formed by a linearly expanding and contracting dash pot or the like is provided between the door body and the door body pivot support surface (inside the box bottom plate) so that the door can be opened and closed softly. Has been. The vending machine box is often installed outdoors, and from the standpoint of mischief and crime prevention, the opening / closing damper mechanism (dashpot) is used.
Must be installed in the box.

Then, when replenishing products, etc., when the door is fully opened (130 ° or more), a dashpot which is a linear elastic member is provided between the fan-shaped space formed between the inner edge of the lower end of the door and the outer edge of the lower end of the box opening. The piston rod, etc. of the # 2 project greatly. This large protrusion of the piston rod is not desirable because it interferes with the foot when the product is filled. In particular, since the linear elastic member is reciprocally moved, it is difficult to secure strength, and there is a possibility that the linear elastic member may be deformed when it interferes with a foot or the like.

Further, when the dashpot is installed in the box, the dashpot interferes with the door body and the opening angle of the door body cannot be set to 180 °. Unlike when replenishing products, it is desirable to open the door close to 180 ° when repairing the door.

For example, as shown in the model diagram of FIG. 3, the pivot point of the door body 12 is A, the connecting point of the dashpot 13 with the door body 12 (the previous connecting point) is B, and the box body of the dashpot 13 is shown. When the connection point with the side (original connection point) is D, even if the connection axis thickness of the pivot and the connection axis thickness of the dashpot are ignored, a gap larger than 180 ° -∠DAB (position of line segment AB ") No angle can be obtained, that is, the rotational movement line DB ″ of the linear expansion / contraction member 13 such as the dashpot cannot exceed the pivot point A. For example, linear elastic member 1
Even if the original connection point D of 3 is positioned at D ′ on the rotational movement line AB of the door body 12 and ∠DAB is set to 0 °, the pivot axis and the linear expansion / contraction member interfere with each other, and therefore the thickness (correct The upper limit of opening is 1/2) of the total thickness.

On the other hand, when it is desired to provide a door body rotation urging mechanism in the closing direction with a linear coil coil spring, it is necessary that the spring force vector has a vector in the closing direction. It is necessary to position the box-side connecting fulcrum D on the inner side. Further, it is also necessary to consider the opening resistance due to the spring force, and it is easy to balance the closing force and the opening resistance when the box side coupling fulcrum is closer to the pivot point. Therefore, as a result, the opening angle of the door body is further limited when the tension coil spring is attached.

[0012]

DISCLOSURE OF THE INVENTION In view of the above, the present invention provides a door body mounting structure having a damper mechanism that linearly expands and contracts by a dashpot and / or a door body closing direction spring rotation urging mechanism. When fully opened for refilling, the linear expansion and contraction member such as the piston rod of the dashpot has a small protrusion amount with respect to the fan-shaped space formed between the lower end of the rear surface of the door body and the lower end of the front surface of the box opening. It is intended to provide a mounting structure.

Another object of the present invention is to provide a door body mounting structure in which it is easy to make the door body fully open angle close to 180 ° or more in the same door body mounting structure. .

The present invention is to solve the above-mentioned problems (objects) by the following constitution.

A door is hingedly connected to the opening of the box, and an opening / closing damper mechanism for the door and a door rotation urging mechanism are provided.
In the door body mounting structure in which the opening / closing damper mechanism and / or the door body rotation urging mechanism is composed of a linear expansion / contraction member and is installed inside the box body, the inside of the rotation operation line when the door body is fully closed A crank having a fixed node on its side, and a slider coupled to the rotary node of the crank and reciprocating a predetermined distance parallel to the rotational movement line on the rotational surface of the door body, wherein the elastic member is coaxial with the slider. It is characterized in that it is arranged so as to expand and contract.

With this configuration, the linear expansion / contraction member constituting the opening / closing damper mechanism and / or the door body rotating / biasing mechanism is always
It is in the projected bottom surface of the door body, does not project into the fan-shaped space formed between the rear surface of the door body and the box opening front surface, only the crank projects, and the amount of projection into the fan-shaped space is small. . Therefore, the risk of interfering with a foot or the like when replenishing products is reduced. Further, unlike the linear elastic member, it is easy to ensure strength, and even if it interferes with the foot or the like, there is almost no possibility of deformation.

Further, in the above structure, when the crank is formed by the curved arm that is curved toward the inside of the box body when the door body is fully closed, the fully opened angle of the door body can be made close to 180 ° or more. This is because the curved arm can avoid interference with the pivot of the door body.

In order to ensure the 180 ° open design of the door body, it is sufficient that the door is bent by an amount that does not interfere with the pivot when the door is opened 180 °.

The linear expansion / contraction member forming the shock absorber mechanism is usually a dashpot, and the linear expansion / contraction member forming the door body rotation urging mechanism is usually a tension coil spring.

A plurality of dashpots, which are versatile as dampers, can be used in combination, and the degree of freedom of the damper mechanism is increased. Further, a plurality of tension coil springs can be used in combination as a spring body, which is highly versatile, and the degree of freedom in designing the spring rotation urging mechanism is expanded.

When it is necessary to provide both a shock absorber mechanism and a spring rotation urging mechanism, a dashpot is inserted into the tension coil spring so that the rotation source coupling point and the rotation tip end are coaxial with each other. It is desirable to use pinned coil spring extrapolated dashpots. Since the damper mechanism and the spring rotation urging mechanism have a configuration in which the dashpot is housed in the hollow portion of the coil spring, it is possible to make the device compact, and when it is applied to a door body of a vending machine or the like, design design becomes easy.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The same parts as those in the above-described example are designated by the same reference numerals, and the whole or part of the description thereof will be omitted.

FIG. 4 is a model view of a door body mounting structure according to an embodiment of the present invention.

As described above, the door body (door body) 12 is attached (via screws, rivets, etc.) to the inside of the top plate 16 and the bottom plate 18 of the box body (housing) 14 of the vending machine. The door body 12 is hinged (pivotally) coupled to the support plate 21 via hinge pins 28 and the like (the entire configuration is shown in FIG.
reference).

In this embodiment, when the door 12 is fully closed, the crank 30 having the fixed node E inside the rotation line L and the pivot node F of the crank 30 are pin-connected to each other to rotate the door 12. The moving surface S is provided with a slider 32 that reciprocates a predetermined distance in parallel with the rotational movement line L. And
A damper rod 38, which is an expansion / contraction member including a damper 34 and a tension coil spring 36, and a tip of the coil spring 36 (expansion / contraction ends 36a, 34a) are arranged so as to expand / contract coaxially with the slider 32. That is, the tips of the damper rod 38 and the coil spring 36 are integrally connected to the slider 32. Naturally, the origin of the damper 34 and the coil spring 36 is fixedly coupled to the cutout lower surface of the door body.

The operation of this embodiment is as follows.

When the door body changes from the fully closed state to the open state,
With the rotation of the door body 12, the crank 30 rotates about the fixed node E as the rotation center. At this time, the slider 32 pin-coupled to the tip of the crank 30 moves to the hinge coupling (pivot point) A side of the door body 12 along the slide groove 40a of the slider rail, and the coil spring force resists the opening. Acts as. The slider rail 40
Has a slide groove 40a, and the stroke of the slider is restricted.

Immediately before the crank 30 interferes with the hinge pin 28 of the door body 12, the coil spring, which is an expanding / contracting member, and the crank (rotation line EF) 30 pass through a point where they are aligned, and the coil spring is moved. Door body 1 by urging the body in the opening direction
Maintain the open state of 2. Normally, in order to stabilize and maintain this open state, a stopper mechanism is provided as described later.

To close, release the stopper mechanism and
If a force is applied lightly in the closing direction, the coil spring 36 urges it to rotate in the closing direction, but at this time, due to the damper action, the door body is closed gently.

5 and 6 show concrete examples of the present invention.

Basically, the structure is the same as that shown in FIG. 4 except that the crank 130 is curved inward.

In the illustrated example, the crank 130 is provided with connecting plate portions which are flatly crushed at both ends and can be pin-connected, but a punched flat plate or a ribbed one can be used. . The degree of curvature of the crank is 1 for the door body 12.
It shall not interfere with the hinge pin when opened close to 80 °. Usually, the opening angle (α) is set to about 90 ° in consideration of strength.

The linear expansion and contraction members responsible for the opening / closing damper mechanism and the door body rotation urging mechanism are a dashpot (damper) 34 and a tension coil spring 36, respectively. It is called pot 31.

The stroke amount (extension amount) of the coil spring (linear elastic member) 36 is set to 20 to 70%, preferably 30 to 50%. If the stroke amount is too small, it is difficult to obtain the rotation biasing force of the door body 12, and conversely, if the stroke amount is too large, the resistance force against the rotation biasing force increases.
It becomes difficult to smoothly open and close the door 12.

Here, the coil spring extra insertion dash pot 3
As shown in FIGS. 5 and 7, the dashpot 34 is inserted into the tension coil spring (coil spring) 36 to couple the respective original coupling portions 36a and 39a to the lower surface side of the door body and the respective tips ( The expansion / contraction) coupling portions 36b and 38a are coaxially pin-coupled to the rotation node F of the crank 130.

As a matter of course, the dashpot 34 which constitutes the opening / closing damper mechanism and the tension coil spring 36 which forms the door body rotation urging mechanism are located at different positions, for example, at the position where the door body 12 is vertically overlapped, or on the same plane. May be provided in parallel.

The dashpot 34 means "oil (air)"
A braking device consisting of a cylinder and a piston that satisfy
Oil can travel from one side of the piston to the other through the slits in the wall. Connecting the piston to the object to be braked reduces the rate of change of momentum of the feasible part and absorbs the shock. (Shin Ogawa's "Eiwa Plastic Industry Dictionary" (1973-9-25) Industrial Research Committee, p.234).

As shown in FIG. 7, the specific coupling mode is a hook (engagement portion) at both ends of the tension coil spring 36.
36a and 36b are the connecting arm 39 attached to the base of the cylinder 42 and the tip connecting portion 3 of the piston rod 38.
It is attached to the bottom surface of the door body 12 (the long holding block 41 attached to the lower portion) in a state of being positioned above and below each coupling hole of 8a (both ends are coaxial). Further, the tip joint portion 38a of the piston rod 38, the crank 130, and the slider 32 are coaxially joined. And
The slider 32 is adapted to slide in engagement with a slide groove 40a of a slider rail 40 attached to the back surface of the door body 12.

The number of tension coil springs and / or the number of dashpots is one, but two or more of them may be used in parallel and / or in series depending on design requirements.

The opening / closing damper mechanism is not limited to the dashpot but may be a rotary damper or the like. Of course, only one of the opening / closing damper mechanism and the spring rotation urging mechanism may be provided.

In this embodiment, an open lock mechanism having the following structure is provided so that the open state can be maintained, that is, the door body is not closed by an external force of a predetermined value or less (see FIG. 6).

When the slider rail 40 is slid (slide) on the slider 32, an elastic engaging projection 44 which can be recessed (withdrawn) inward is integrated, and an elastic engaging projection 44 is provided on the outer side of the slider rail 40. To engage the engaging recess 46
It is a configuration with one or more. In the illustrated example, the elastic engagement protrusion 4
4 is a curved protrusion formed at the tip of a leaf spring 48 integrated with the slide, and an engaging recess 46 is formed at 1
One piece or a plurality of pieces (in the example shown, one piece 46a for intermediate opening and the corrugated concave portion 46b for full opening) are formed. Although the structure is complicated, it is also possible to provide the slider with an engaging ball that is retracted and retracted by a spring force and to provide one or more hemispherical engaging recesses that engage with the engaging ball. Good.

Next, the manner of use of the above embodiment will be described mainly with reference to FIG.

When the door body 12 is fully closed, FIG.
As shown in FIG. 5, the spring force of the linear expansion / contraction member exerts a turning moment in the closing direction on the door body 12, so that the door body 12 is stably closed. In this state, although not shown, it is locked.

Next, when replenishing or replacing products in the vending machine, the lock is released and the door 12 is opened. At this time, since the turning moment (torque) in the closing direction by the coil spring 36 acts on the door body 12, the door body 12 is resisted against the urging force, and the door body 12 is moved as shown in FIGS. 6B and 6C.
The state of FIG. 6D with the opening degree of 180 ° is reached through the states of the opening degrees of 60 ° and 115 °. It should be noted that 115 ° is a thought position where the coil spring 36 (not shown) changes from the door closing action to the closing action. At this time, since the crank 130 is curved, it does not interfere with the door body pivot point (original joint connection point) A, and the door body can be fully opened with an opening angle of 180 ° or more.

When the slider 32 reaches the open position, the elastic engagement projection 44 engages with the engagement recess 46 formed at a position corresponding to a predetermined angle (from the intermediate open position to the fully open position) to close the door. Prevent the.

In the above embodiment, the door body in the vending machine is taken as an example and explained as the door body, but the present invention can of course be applied to the pivotable door body of other container trucks, and further, the building. It can also be applied to the outer door (outer door body) in.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a door body open state of a vending machine, which is a product to which a door body mounting structure according to the present invention is applied.

FIG. 2 is a schematic plan view showing the embodiment of the door body mounting structure when the door body is fully closed.

FIG. 3 is a rotation operation model diagram of a linear expansion / contraction member constituting a conventional damper mechanism and the like.

FIG. 4 is a model diagram showing a door body mounting structure of the present invention.

FIG. 5 is a partial view seen from the lower surface of the door body, similarly showing a specific embodiment.

FIG. 6 is a partially omitted partial view showing the positional relationship of the lock mechanism of the link at each opening angle from the fully closed position to the fully open position of the door body also having the lock mechanism.

FIG. 7 is a side view and a front view showing how the linear elastic member is attached to the door body according to the embodiment.

[Explanation of symbols]

12 door 14 Boxes of vending machines 16 Top plate 18 Bottom plate 21 Door support plate 28 coupling pin 30,130 crank 31 coil spring extrapolation dash pot 34 dashpot 36 tension coil spring 38 Dashpot Piston Rod 44 Elastic coupling protrusion 46 engagement recess 48 leaf spring A door pivot E-crank fixed node F-crank rotation node

Claims (5)

[Claims] 1. A door is hinged to an opening of the box,
A door provided with an opening / closing damper mechanism for the door body and a door body rotation urging mechanism, wherein the opening / closing damper mechanism and / or the door body rotation urging mechanism is composed of a linear elastic member and is attached inside the box body. In the body mounting structure, a crank having a fixed node inside the turning line when the door is fully closed, and a predetermined distance parallel to the turning line on the turning face of the door that is connected to the turning node of the crank. And a slider that reciprocates, wherein the expandable member is arranged so as to expand and contract coaxially with the slider. 2. The door body mounting structure according to claim 1, wherein the crank is formed by a curved arm that is curved toward the inside of the box body when the door body is fully closed. 3. The linear expansion / contraction member constituting the opening / closing damper mechanism is a dashpot.
Alternatively, the door body mounting structure described in 2. 4. The door body mounting structure according to claim 1, wherein the linear expansion / contraction member constituting the door body rotation urging mechanism is a tension coil spring. 5. A linear expansion / contraction member constituting the opening / closing damper mechanism and the door body rotation urging mechanism is configured such that a dashpot is inserted into a tension coil spring so that the rotation origin end and the rotation tip end are coaxial with each other. 3. The door body mounting structure according to claim 1, wherein the door spring is a pin-coiled coil spring external insertion dashpot.