JPH0642254A - Hinge structure - Google Patents

Abstract

PURPOSE:To prevent the damage of the housing body side or the cover side even when compulsory force works to the resin cover capable of being opened and closed to the resin housing body side in the direction of opening. CONSTITUTION:Hinge structure is composed of a U-shaped support hinge 19 installed inside the rear of a housing body 16 and a rotary hinge mounted to a printer cover 17 and formed in an approximately arcuate shape. A fixed-side rotary-support section support hole 19c is formed to the leg section 19a of the support hinge 19, and the end section of the linear section 20b of the rotary hinge 20 can be inserted between the leg sections 19a and 19a and hemisherical projections 20d are shaped onto both side faces. The support hole 19c and the projection 20d are engaged, and the printer cover 17 is turned while using the engaged section as a fulcrum. Wedge inclined sections 20e are formed onto both side faces of the linear section 20b of the rotary hinge 20, and penetrated between the leg sections 19a and 19a when the inclined sections 20e are further rotated in the direction of opening from the full opening of the printer cover, the leg sections 19a are pushed open, and the support hole 19c and the projection 20e are disengaged mutually, thus preventing the application of compulsory force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge structure, and more particularly to a hinge structure in a cover opening / closing mechanism that can be opened / closed with respect to a housing body side.

[0002]

2. Description of the Related Art A conventional hinge structure is provided, for example, in a printer cover which is openable and closable with respect to a resin housing body of a POS terminal, and the printer cover is made of resin like the housing body, whereas the hinge portion is made of metal. Some of the sexes are used.

Next, a conventional hinge structure in which a metal hinge is used for a resin cover will be described with reference to the drawings.

FIG. 8 is a perspective view showing a conventional example. The hinge structure shown in FIG. 8 is a housing body side hinge 2 as shown in FIG. 9 mounted inside the back surface of a resin housing body 1 of a POS terminal, and a cover side hinge 4 mounted on the back surface of a resin printer cover 3. And a support pin 5 for rotatably supporting the price attribute hinges 2, 4.

Here, the housing main body side hinge 2 is attached by a screw 7 to an attachment boss 6 formed on the inner surface of the housing main body 1. On the other hand, the cover side hinge 4
Is also attached to a mounting boss 8 formed on the inner surface of the printer cover 3 with a screw 9.

The housing main body side hinge 2 has a mounting portion 2a for the housing main body 1, and a rotation supporting portion 2c provided with a pin insertion hole 2b at the tip thereof so as to project forward from the mounting portion 2a.
And have. On the other hand, the cover-side hinge 4 has a rotation support portion 4b provided on both left and right sides of the device rotation support portion 2c and provided with a pin insertion hole 4a. Then, the support pins 5 are inserted into the respective pin insertion holes 2b and 4a, whereby a hinge structure is formed, and the printer cover 3 can be opened and closed by rotating with respect to the housing body 1 with the hinge portion serving as a fulcrum.

Further, the housing body 1 and the printer cover 3
A stop member 10 is bridged between and so that the printer cover 3 is fixed at a predetermined open position.
The printer cover 3 side of the stopper member 10 is rotatably attached to the cover side hinge 4 with a screw 11,
The housing body 1 side is attached to a support piece 14 that is attached by a screw 13 to an attachment boss 12 formed on the inner surface of the upper portion of the housing body 1. An elongated hole 10a is formed in the mounting portion of the stopper member 10 with respect to the support piece 14,
The screw 15 is fixed to the support piece 14 through the elongated hole 10a.

[0008]

In the conventional hinge structure described above, the metallic housing 2 is provided on the resin housing body 1 and the opening / closing mechanism of the resinous printer cover 3 which can be opened and closed with respect to the housing body 1. , 4 are used, if an excessive force is applied in the opening direction of the printer cover 3 (direction of arrow A in FIG. 8) from the state where the printer cover 3 is fully opened as shown in FIG. To the printer body 3 around the mounting boss 8 which is the mounting portion to the printer cover 3 and the mounting boss 12 which is the mounting portion to the housing body 1 of the support piece 14 to the housing body 1 and the housing body 1 of the housing body side hinge. However, there is a drawback that the housing body 1 around the mounting boss 6, which is the mounting portion, may be damaged.

[0009]

The hinge structure of the present invention comprises:
A support hinge provided inside the resinous housing main body, having a pair of flexible legs extending downward facing each other and having fixed-side turning support portions on the surfaces facing each other; It is attached to the rear surface of the resin cover side that can be opened and closed with respect to the housing main body side, extends in an arc shape between the pair of leg portions, and the tip side portion thereof is rotatable with respect to the fixed side rotation support portion. The pair of flexible-side rotation support portions supported by the cover and the cover in the maximum open state are provided on the base side of the leg portion with respect to the flexible-side rotation support portion and extend from between the leg portions toward the front side. It is configured to include a rotating hinge having an inclined portion that is wider than between the legs.

[0010]

The present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention. This hinge structure is a resin printer attached to a resin housing body 16 of a POS terminal seen from the rear side in an openable and closable manner. It is applied to the opening / closing mechanism of the cover 17. The printer cover 17 is opened and closed by rotating the printer cover 17 around the rear end edge portion 18 of the POS terminal with respect to the housing body 16 to open and close, so that the hinge structure is exposed as shown in FIG. .

The hinge structure comprises a U-shaped support hinge 19 provided on the inner surface of the rear side on the housing body 16 side, and a rotary hinge 20 formed on the printer cover 17 side in a substantially arc shape. The support hinge 19 and the rotary hinge 20 are both made of resin, and two sets are provided on the left and right.
The support hinge 9 is a separate body from the housing body 16, and is a support that connects a pair of leg portions 19a that are arranged to face each other in the left-right direction and extend downward and the upper ends of the two leg portions 19a. And a portion 19b. Two legs 19a
A support hole 19c is formed at a portion of the lower end facing each other as a fixed-side rotation support portion that rotatably supports the tip of the rotation hinge 20 on the printer cover 17 side.

As shown in FIG. 3, a rotary hinge 20 is supported inside the leg 19a continuously from the support hole 19c.
A guide groove 19d for assembling is formed. As shown in FIG. 4, the support hinge 19 projects forward from the housing main body 16 and supports the lower side of the support portion 19b. It is clamped and fixed by a pair of left and right holding portions 22 that support the upper surfaces of the left and right ends of the portion 19b, and is detachable from the housing body 16. A locking projection 21a is formed at the tip of the tongue 21. The supporting projection 19 of the locking projection 21a is provided by the tongue 21 and the pressing portion 2.
It becomes a stop when fixed between 2 and. On the other hand, the rotary hinge 20 includes an arc portion 20a and a linear portion 2 continuous with the arc portion 20a.
0b, and a support plate 20c is integrally formed at the end of the arc portion 20a, and the support plate 20c is fixed to the back surface of the printer cover 17 with a screw 23.

The end portion of the straight portion 20b can be inserted between the leg portions 19a, 19a of the support hinge 19, and both sides thereof are shown in FIG.
As shown in, a hemispherical rotation protrusion 20d is formed as a movable side rotation support portion. The rotation protrusion 20d engages with the support hole 19c of the support hinge 19 to rotate the printer cover 17 with this as a fulcrum. Further, on both sides of the straight line portion 20b, as shown in FIG. 1, the printer cover 17 is fully opened, and is substantially orthogonal to the front side G, that is, the extension direction of the leg portion 19a from between the two leg portions 19a and 19a. A wedge-shaped inclined portion 20e is formed so as to gradually rise from both sides in the direction of rotation. Slope 20
At least in the vicinity of the maximum raised portion of e, the two leg portions 19a, 19a are provided during the regular opening / closing operation of the printer cover 17 from the fully opened state shown in FIG. 2 to the fully opened state shown in FIG.
It is located on the front side of the space, and when it is further rotated in the opening direction from the fully opened state, it is configured to enter between the leg portions 19a, 19a.

A circular arc portion 20a of the pair of left and right rotating hinges 20.
On the outer side surfaces of the printer cover 1 that do not face each other,
Stopper 20f when fully closed and Stopper 2 when fully open
And 0 g are formed respectively. The stopper 20f when fully opened is near the printer cover 17, and the surface thereof has a convex curved surface that gradually rises toward the printer cover 17, and the tip of the maximum raised portion completely closes the printer cover 17. When releasing from the state,
The opening of the printer cover 17 is regulated to some extent by coming into contact with the inner edge of the housing body 16.

The stopper 20g when fully opened is the stopper 2
Contrary to 0f, on the side of the straight portion 20b of the arc portion 20a,
The surface thereof has a convex curved surface that gradually rises toward the straight portion 20b, and the tip of the maximum raised portion has an outer edge portion of the housing body 16 when the printer cover 17 is rotated in the closing direction from the fully open state. To a certain degree to regulate the closing operation of the printer cover 17. In the above structure, when the printer cover 17 is rotated to open from the fully closed state shown in FIG.
f is pushed by the edge of the housing body 16 and bends inward to pass therethrough, and the stopper 20g passes through the edge of the housing body 16 while bending and passes therethrough. By being exposed to the outside of the main body 16, the stopper 20g restricts the rotation of the printer cover 17 in the closing direction.

If an unreasonable force F is applied to the printer cover 17 in the opening direction from this state,
As shown in FIG. 6, the inclined portion 20e of the rotary hinge 20 pushes the two leg portions 19a, 19a to the left and right and enters between them, and at the same time, the upper surface of the linear portion 20b is brought into contact with the tip of the tongue 21 on the housing body 16 side. Upon contact, they are subjected to a so-called leverage action, and as a result, the tip of the linear portion 20b moves to the tip side of the leg portion 19a, and the turning protrusion 20d on the turning hinge 0 side moves from the support hole 19c of the support hinge 19 to the guide groove 19d. You will be guided and come off. In this way, when an unreasonable force acts in the opening direction from the fully opened state of the printer cover 17,
Since the support hinge 19 on the housing body 16 side and the rotary hinge 20 on the printer cover 17 side are disengaged from each other, the hinges 19 and 20 are not subjected to an unreasonable force, and the hinges 1 and 2 are not attached.
9, 20 and housing body 1 of each hinge 19, 20
6. It is possible to prevent damage to the attachment part to the printer cover 17.

In order to assemble the support hinge 19 and the rotary hinge 20 in the disengaged state, the rotary protrusion 20d at the tip of the rotary hinge 20 is moved to the information through the guide groove 19d at the tip of the support hinge 19. As a result, the rotation protrusion 20d
Can easily enter the support hole 19c, and the pivot hinge 20 and the support hinge 19 can be easily assembled.

FIG. 3 is a sectional view of the support hinge, FIG. 5 is a perspective view showing a rotary hinge portion of the printer cover, and FIG. 7 is a perspective view showing a state where the support hinge and the rotary hinge are disengaged.

The hinge structure of the present invention can be applied to any opening / closing mechanism between a member such as a resin housing and a resin cover member that is opened / closed with respect to the member. In the above embodiment, the support hinge 19 on the housing body 16 side may be integrated with the housing body 16 instead of being a separate body.

In this case, the tongue piece 21 and the pressing portion 22 for supporting the support hinge 19 are unnecessary.

[0022]

As described above, in the hinge structure of the present invention, a resin hinge is used in place of the metal hinge, and a pair of flexible support hinges on the fixed side that are mounted on the housing body are opposed to each other. While having a flexible leg, the movable hinge attached to the cover that can be opened and closed with respect to the housing main body is formed into a substantially arcuate shape, and its tip is provided between the two legs of the support hinge. When the cover is rotatably supported and a force is further applied to the open side from the maximum open state of the cover, the inclined part provided at the tip side part of the arc-shaped rotary hinge enters between the two leg parts and both Since the support hinge and the rotary hinge are disengaged from each other by pushing and spreading the cover, force is not forcibly applied to the housing main body and the cover to which the support hinge and the rotary hinge are attached, and the housing main body and the cover are not forced. There is an effect that the damage of the cover can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a usage example of the present invention.

FIG. 3 is a sectional view of a support hinge.

FIG. 4 is a perspective view showing a state in which a support hinge of the housing body is removed.

FIG. 5 is a perspective view of a rotating hinge portion of the printer cover.

FIG. 6 is an operation explanatory view showing a main part of FIG.

FIG. 7 is a perspective view showing a state in which a support hinge and a rotary hinge are disengaged.

FIG. 8 is a perspective view showing a conventional example.

9 is a perspective view showing a hinge on the housing body side of FIG.

[Explanation of symbols]

 16 Housing Body 17 Printer Cover 19 Support Hinge 19a Leg 19c Support Hole 20 Rotating Hinge 20a Arc Part 20d Rotating Protrusion 20e Inclined Part

Claims (1)

[Claims] 1. A pair of flexible legs provided inside a resinous housing main body, extending downward so as to face each other, and having fixed-side rotation support portions on surfaces facing each other. The support hinge and the resin cover side rear surface that can be opened and closed with respect to the housing body side are attached to extend substantially arcuately between the pair of leg portions, and the fixed side rotation support portion portion is provided at the tip end side portion thereof. The pair of flexible side rotation support portions that are rotatably supported with respect to each other and the cover provided on the base side of the leg portion with respect to the flexible side rotation support portion in the maximum open state, and between the leg portions. A hinge structure including a pivot hinge having an inclined portion that is wider toward the front side than between the legs.