JPH0366836B2 - - Google Patents

Description

Detailed Description of the Invention - Field of Industrial Application - The present invention is applicable to a support structure for a door provided in a case of an office machine, particularly a relatively small area door provided in a console panel of an office electronic device. The present invention relates to a preferred support structure.

-Prior Art- The console panel of an office machine is usually provided with various switches and keys for operating it, but some of these switches are rarely operated. Therefore, by placing this rarely operated switch in a recess in the housing and covering the recess with a door that is flush with the panel surface, the panel surface is avoided from being cluttered and the exterior appearance is improved. A structure is adopted that improves performance and prevents malfunctions.

Due to its appearance, the door provided in such a console panel is closed flush with the panel surface when closed, and there is no gap or step between it and the main body, and it is simple in structure and easy to manufacture. Easy assembly is required.

Conventionally, as a support structure for such a door, a structure as shown in FIG. 10 or FIG. 11 has been used. In the figure, 1 is the housing body, 11 is the main body panel, 12
is the panel surface, 3 is the recess provided in the main body, 4 is the switch provided in the recess 3, 2 is the door plate that covers the recess 3, 22 is the panel surface of the door plate, 5 is the pivot of the door plate. It is a supporting pin.

The one shown in FIG. 10 simply pivots the door plate 2 with a pin 5 provided inside the panel surface 22, and the one shown in FIG. 11 has an arm extending from the base end of the door plate 2. 51 is pivotally supported by a pin 5 provided on the inside of the panel surface 12 of the main body at a position spaced apart from the door plate 2. The reason why the pins 5 are both provided inside the panel surfaces 22, 12 is to prevent the pivot portion of the door plate 4 from protruding onto the panel surfaces 22, 12 and spoiling the appearance of the device.

-Problems to be Solved by the Invention- However, with the structure shown in FIG. 10, when the door plate 2 is opened, the base edge 23 of the door plate and the edge 13 on the main body side
In order to avoid interference with the edges 23 and 13, it is essential to provide a slight gap C between the edges 23 and 13, which has the drawback of impairing the appearance of the device. Furthermore, in the one shown in FIG. 11, in order to prevent a gap from forming between the door plate 2 and the main body 1, it is necessary to increase the dimensional accuracy of the arm 51 and the positional accuracy of the pin 5, which has the disadvantage of increasing manufacturing costs. There is. Furthermore, in the above-mentioned manufacturing, especially in the structure shown in FIG. 11, it is necessary to form the pin 5 in the recess 3, so whether the pin is integrally molded with the main body 1 or implanted separately, it is difficult to manufacture. The problem was that it became complicated.

In this invention, the members constituting the pivot mechanism of the door plate 2 can be easily integrally molded together with the main body 1 and the door plate 2 from synthetic resin, and there is a gap between the door plate and the main body when the door is closed. The object of the present invention is to provide a structure that does not create gaps between the panels, does not create projections or recesses on the panel surface due to the constituent members of the pivot mechanism, and allows the door plate to be opened and closed smoothly.

-Means for Solving the Problems- The door plate support structure of the present invention provides a support structure for the door plate 2 by engaging a member integrally formed with the door plate 2 and a member integrally formed with the main body 1. A supporting mechanism is formed.

According to the configuration of the present invention, the arm member 25 is integrally formed on the attachment 2 and extends from the back surface of the base end 23 side. This arm member 25 extends beyond the base edge 23 and substantially parallel to the panel surface 22 of the door plate,
An arcuate edge 29 is formed on the base end side of the inner edge 28, and an engaging protrusion 27 is provided at the tip.

On the other hand, the bottom plate 31 of the recess 3 formed in the housing body 1
An opening 34 through which the arm member 25 formed on the door plate 2 is inserted is formed adjacent to the side edge 13 that abuts the base edge 23 of the door plate, and the arm member 25 formed on the door plate 2 is inserted into the opening 34 . A rib 15 is formed extending from the back surface of the bottom plate 31 to the back surface of the adjacent main body panel 11, and this rib 15 has an inner edge 18 that engages with the engaging protrusion 27 at the tip of the arm member, and the inner edge of the main body panel The arcuate edge 19 is connected to the arcuate edge 19.

At least the portions of the ribs and the arcuate edges 19, 29 of the arm members connected to the main body panel 11 or the door plate 2 are located at their center P when the door plate 2 is closed.
(P1, P2) are circular arcs located outward from the base edge 23 of the door plate on the main body panel side.

Generally and strictly speaking, the positions that the center P (P1 and P2) of the above circular arc should take are as shown in Fig. 2, where P1 and P2 are located between the base edge of the door plate and the edge of the recess. A boundary line k is determined based on the condition that the abutting surface a does not interfere with the opening and closing of the door, and a boundary line l is determined based on the condition that the back surface of the door plate does not interfere with the bottom surface of the recess (protrusion 32 in the case of the figure). The boundary line m is determined based on the condition that the fitting surface b between the leading edge of the door plate and the edge of the recess opposite thereto will not interfere with each other during opening and closing, and the condition is determined based on the condition that the arcuate edge 19 can be substantially formed. This means that it is located in a region R surrounded by a boundary line n. Here, the boundary line k is a line drawn from the outer end s of the abutment surface a at right angles to the abutment surface, and the boundary line 1
is a line drawn from the inner end t of the abutting surface a perpendicular to the panel surface, the boundary line m is a line drawn from the inner end u of the fitting surface b at right angles to the fitting surface, and the boundary line n is the line drawn from the inner end t of the mating surface b at right angles to the fitting surface. This is a line drawn inclined toward the recess 3 from the contact point v between the tip of the main body panel and the back surface of the main body panel.

Strictly speaking, the above is as described above, but since there is a slight clearance between the door side and the main body side that is necessary for opening and closing, the center P slightly exceeds the boundary lines k, l, m, and n. There is no problem in practice even if the center P1 of the arcuate edge 19 and the center P2 of the arcuate edge 29
There is no practical problem even if they do not match. Furthermore, the portions of the arcuate edges 19, 29 beyond the vicinity of the connecting portions with the main body panel 11 or the door plate 2 are shaped lower than the above-mentioned shape, so that there is an appropriate play gap between the door plate 2 and the main body 1 when the door is opened. It can be a structure that occurs.

-Function- The arm member 25 of the door plate is integrally formed with the door plate 2, and the opening 34 and the rib 15 provided in the bottom plate 31 of the recess.
is also integrally molded with the housing body 1. Then, the door plate 2 inserts the arm member 25 into the opening 34 and inserts the step 26 of the engagement protrusion 27 at the tip into the rib 15 of the main body.
By engaging the inner edge 18 of the housing body 1
will be installed on the

In this attached state, the door plate 2 is configured such that the arcuate edge 29 of the arm member slides along the tip w of the opening 34, and the step portion 26 of the engagement protrusion slides along the arcuate edge 19 of the rib 15. This allows them to be opened and closed as if both were pivotally supported by a pin.

When the door plate 2 is closed, the door is closed by a wedge action between the arcuate edge 19 or 29 that is generated when the door plate 2 is rotated in the closing direction and the stepped portion 26 or the tip w of the opening that is in sliding contact with the arched edge 19 or 29. A force is generated that moves the proximal edge 23 of the plate in the direction of the edge 13 of the recess, so that the door plate 2 is closed with the proximal edge 23 and the edge 13 in close contact.

Further, when the door plate 2 is opened and closed, the base edge 23 of the door plate rotates while being displaced in the direction away from the edge 13 of the recess, so that the outer ridge 13a of the base edge is below the outer ridge 13a of the edge. The opening and closing operations are not hindered by the entry, and the door plate 2 can be opened and closed smoothly.

-Embodiment- Figures 1 to 9 are diagrams showing an embodiment of the present invention, in which Figure 7 is a perspective view showing the casing portion where the door is attached, and Figure 8 is the casing main body of the part. Figure 9 is a perspective view of the door turned upside down.
A sectional view taken along line A--A in FIG. 8 and a view taken along arrow B in FIG. 9 are shown in FIG.

In the figure, 1 is a housing body, 2 is a door plate, and these are molded products of synthetic resin. 11 is a panel of the housing body 1, 12 is the panel surface, 3 is a recess into which the door is attached, 31 is a bottom plate of the recess, and 32 are protrusions formed at the four corners of the bottom plate. The back surface of the door plate 2 abuts against these protrusions 32. 33 is a switch operation hole formed in the bottom plate, 22 is a panel surface of the door plate 2, 23 is a base edge of the door plate, 13 is an edge on the main body side that abuts the base edge, 14 and 24 is an engaging pair for locking the door plate 2 in the closed state.

The door plate 2 has an arm member 2 on the back side of the base edge 23.
5 and 25 are integrally formed. This arm member 2
5 extend substantially parallel to the panel surface 22 beyond the proximal edge 23 of the door plate, and an engaging protrusion 27 having a stepped portion 26 facing the proximal side is formed at the tip thereof. . The base end of the inner edge 28 of the arm member 25 is an arcuate edge 29, and the arcuate edge 29 extends slightly beyond the base edge 23 of the panel surface 22 of the door plate, as shown in FIG. It is a circular arc having its center at the position P.

On the other hand, an opening 34 adjacent to the edge 13 is formed in the bottom plate 31 of the recess formed in the main body, and the length L1 of this opening 34 is the length of the portion where the arm member 25 connects to the door plate 2. It is set equal to L2. A rib 15 connected to the back side of the main body panel 11 adjacent to this opening 34 is connected to the back side of the main body panel 11 adjacent to this opening 34.
is formed, and the rib 15 has an inner edge 18 that engages with the step 26 of the arm member 25 inserted through the opening 34. The inner edge 18 on the main body 1 side is an arcuate edge 19, and as shown in FIG. ing.

The opened and closed states of the door plate 2 having the support mechanism of the above structure are shown in FIGS. 3 to 5, and the state of the support portion when the door plate 2 is slightly opened is shown in FIG. 6. The action in the opening/closing operation is as described above, and this action is exerted when the door plate is closed and when it is slightly opened, and when the door plate 2 is wide open in the state shown in FIG. Protrusion 27 and inner edge 1 of rib
The door plate 2 is only held by the engagement with the support portion 8, and there is considerable play in the supporting portion.

-Effects of the Invention- According to the structure of the present invention explained above, firstly, the door support mechanism can be integrated with the door plate and the casing body without complicating the molding die, and this can be assembled. By combining them together, rotational support for the door plate can be constructed, and a structure is created in which no protrusions or recesses are created on the outer surface of the second door plate or the main body panel to support the door plate. It is possible to create a structure in which no gap is created between the door plate and the main body panel in the closed state, and the support mechanism for the fourth door plate can be configured compactly, and the recess provided in the main body panel can be made shallow. Therefore, wasteful dead space can be avoided within the housing, fifthly, the door plate can be opened and closed smoothly, and sixthly, the dimensions of the support member do not require very strict precision, which is advantageous in the first aspect. Together with the above effects, there are various effects such as the ability to significantly reduce the manufacturing cost of the casing.

[Brief explanation of drawings]

1 to 9 are diagrams showing one embodiment of the present invention, and FIG. 1 shows the structure of the main body as shown in FIG.
A top view showing the structure on the door side as shown in the A-line cross section in the direction of arrow B in FIG. 9, FIG. Figures 5 through 5 are cross-sectional views showing the door in the open and closed state, Figure 6 is a cross-sectional view showing the support mechanism when the door is slightly opened, and Figure 7 is a perspective view showing the casing with the door attached. , Figure 8 is a perspective view showing the structure of the main body side, Figure 9 is a perspective view showing the back side of the door plate, Figures 10 and 11.
The figure shows a conventional structure. In the diagram, 1: housing body, 2: door plate, 3: recess, 1
1: Main body panel, 12: Panel surface, 13: Edge on main body side, 15: Rib, 18: Inner edge of rib, 1
9: arcuate edge, 22: panel surface of door plate, 23: proximal edge, 25: arm member, 27: engaging protrusion, 28: inner edge of arm member, 28: arcuate edge, 31: bottom plate of recess, 3
4: Opening.

Claims (1)

[Claims] 1. An arm member 25 is integrally formed on the door plate 2 that covers the recess 3 formed in the main body 1, and extends from the inside of the base edge 23 of the door plate 2 beyond the base edge in the direction of the panel surface 22. The member has an inner edge 28 with an arcuate edge 29 on the proximal side, and an engaging protrusion 27 is formed at the tip, and the bottom plate 31 of the recess is abutted against the proximal edge 23 of the door plate. An opening 34 into which the arm member 25 of the door plate is inserted is formed adjacent to the edge 13, and a rib 15 extending from the back surface of the bottom plate 31 to the back surface of the adjacent main body panel 11 is formed adjacent to the opening. This rib 15 has an inner edge 18 that engages with the engagement protrusion at the tip of the arm member, and the inner edge of the main body 1
The side has an arcuate edge 19, and at least each of the arm members and the arcuate edges 29, 19 of the rib has a door plate 2.
Or, the adjacent part connected to the main body panel 11 is an arc having a center P outward from the base edge 23 of the door plate on the main body panel side when the door plate 2 is closed. Support structure for the machine's cabinet door.