JP5113826B2 - Lid opening / closing structure, programmable display and electronic device - Google Patents

Description

  The present invention relates to a lid opening / closing structure that closes an opening of a housing, and an electronic apparatus including the opening / closing structure.

  Conventionally, a programmable display is widely used as an HMI (Human Machine Interface) for controlling devices in a factory. The programmable display device has an interface with a programmable logic controller (PLC), and displays an operation status of a device connected to the PLC or receives an input operation for giving a control instruction to the device via a touch panel. This is an operation-type display with a function.

  Furthermore, in recent years, a programmable display provided with a USB terminal or the like on the front portion of the housing is also used. Thereby, compared with the case where the terminal is provided on the back side of the housing, the programmable display can be easily connected to another computer or memory device.

  Here, in a general electronic device, a structure in which the lid is simply locked so that the lid protecting the terminal or the like can be opened and closed with only a finger is used (for example, Patent Document 1). However, since the programmable display is often used in a poor environment, moisture and oil can easily enter the terminal. Therefore, in the IP standard for industrial control equipment (UL508), the terminal provided on the front part of the programmable display is protected by a lid (front maintenance cover) to provide waterproof and oil resistance, and the lid is screwed. It is stipulated that it can be fixed using. Therefore, the structure for simply locking the lid cannot be applied to the programmable display.

  6 and 7 show the external appearance of a conventional programmable display device 100 corresponding to the IP standard. FIGS. 6A and 7A are perspective views of the programmable display 100, and FIGS. 6B and 7B are front views of the programmable display 100. FIG.

  The programmable display device 100 includes a display screen 110 and a housing 120. As shown in FIG. 6, an opening 121 is formed on the front surface of the housing 120, and terminals and the like are provided inside the opening 121. In order to protect the terminals and the like, the programmable display 100 includes an opening / closing structure 101 of a lid 102 that closes the opening 121.

  FIG. 6 shows a state where the lid 102 is opened. One end of the lid 102 is rotatably connected to the lower side of the opening 121 by a hinge 102a. A screw 103 is attached to the other end of the lid 102, and a screw hole 104 for inserting a shaft of the screw 103 is provided above the opening 121.

  FIG. 7 shows a state where the lid 102 is closed. At this time, the opening 121 shown in FIG. 6 is closed by the lid 102, and the lid 102 is locked by the screw 103. Thereby, the terminal in the opening 121 can be reliably protected.

JP 2007-165723 A (released on June 28, 2007)

  As described above, the programmable display 100 shown in FIG. 6 and FIG. 7 conforms to the IP standard of the industrial control device because the lid 102 can be locked by the screw 103. However, since it is necessary to loosen or tighten the screw 103 using a screwdriver each time the lid 102 is opened and closed, there is a great demand for a simple lock structure that can be opened and closed with a finger.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to realize a lid opening / closing structure capable of both simple locking and locking by screwing.

  In order to solve the above problems, an opening / closing structure according to the present invention is a lid opening / closing structure including a lid that closes an opening of a housing and a holding mechanism that holds the lid in a closed state. Is formed on one end side of the lid, and is connected to the housing so as to be rotatable, and a first slide provided on the other end side of the lid and slidable along the upper surface of the lid The holding mechanism is capable of fixing the slidable second slide member facing the other end of the lid in the closed state at the opening, and fixing the second slide member to the housing The first slide member is slidable between a first position and a second position on the other end side relative to the first position; and a second slide member From the third position and the third position when they are not fixed by the fixing screws. The lid is slidable between a fourth position on the opening side, and an end portion of the second slide member is formed with an engaging portion for engaging the end portion of the first slide member, and the lid In the closed state, when the first slide member is in the first position and the second slide member is in the fourth position, and when the first slide member is in the second position and the second When the slide member is in the third position, the end portion of the first slide member is locked to the locking portion of the second slide member, and the first slide member and the second slide member are respectively connected to the first slide member. In the first position and the third position, the end portion of the first slide member and the locking portion of the second slide member are separated from each other.

  According to said structure, a lid | cover can be opened and closed by being connected with a housing | casing by a connection part and being able to rotate centering | focusing on a connection part. In addition, when the first slide member and the second slide member are at the first position and the third position, respectively, the end portion of the first slide member and the locking portion of the second slide member are Since they are separated from each other, the end portion of the first slide member is not locked to the locking portion of the second slide member. That is, when the first slide member and the second slide member are in the first position and the third position, respectively, the lid is not locked.

  From this state, when the first slide member is slid to the second position, the end portion of the first slide member is locked to the locking portion of the second slide member. As a result, the lid is locked, and when the first slide member is slid again to the first position from this state, the lid is not locked. Since the first slide member can be slid by a finger, the lid can be easily locked.

  In addition, when the lid is not locked and the fixing screw is loosened so that the second slide member is not fixed, and the second slide member is slid to the fourth position, the first slide The end of the member is locked to the locking portion of the second slide member. Furthermore, since the second slide member cannot be slid with a finger by tightening the fixing screw, the lid is locked by screwing.

  The programmable display which concerns on this invention is a programmable display by which opening is provided in the housing | casing, Comprising: As said opening / closing structure of the lid | cover which closes the said opening, it has the said opening / closing structure, It is characterized by the above-mentioned. Therefore, it is possible to provide a programmable display that conforms to the IP standard of the industrial control device and is easy to use.

  An electronic device according to the present invention is an electronic device in which an opening is provided in a housing, and includes the above-described opening / closing structure as an opening / closing structure of a lid that closes the opening. Therefore, it is possible to reliably protect the terminals and the like inside the opening and provide an electronic device that is easy to use.

  As described above, the opening / closing structure according to the present invention has the first slide member in the first position and the second slide member in the fourth position in the state where the lid is closed, and When the first slide member is in the second position and the second slide member is in the third position, the end of the first slide member is locked to the locking portion of the second slide member, When the first slide member and the second slide member are at the first position and the third position, respectively, the end portion of the first slide member and the locking portion of the second slide member are separated from each other. Therefore, there is an effect that a lid opening / closing structure capable of both simple locking and locking by screwing can be realized.

It is a front view of the programmable display which concerns on embodiment of this invention. (A) is a top view of the opening-and-closing structure in the state where the lid | cover was opened, (b) is AA sectional drawing of the said opening-and-closing structure. (A) is a top view of the opening-and-closing structure in the state where the lid was closed (the state where it was not locked), and (b) is an AA sectional view of the opening-and-closing structure. (A) is a top view of the opening-and-closing structure in the state where the lid was simply locked, and (b) is an AA sectional view of the opening-and-closing structure. (A) is a top view of the opening-and-closing structure in the state where the lid was locked by screwing, and (b) is an AA sectional view of the opening-and-closing structure. (A) is a perspective view of the conventional programmable display, (b) is a front view of the conventional programmable display, and shows the state where the front maintenance cover is opened. (A) is a perspective view of the conventional programmable display, (b) is a front view of the conventional programmable display, and shows the state where the front maintenance cover is closed.

  An embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a front view of a programmable display 10 according to the present embodiment. The programmable display 10 includes a display screen 11 and a housing 2, and a lid opening / closing structure 1 is provided on the front surface of the housing 2. In the opening / closing structure 1, both a simple lock capable of opening and closing the lid 5 with a finger and a lock by screwing satisfying the IP standard are possible.

(Details of opening and closing structure)
Next, details of the opening / closing structure 1 will be described with reference to FIGS. FIG. 2 shows a state in which the lid 5 is opened. 3 to 5 show a state where the lid 5 is closed. More specifically, FIG. 3 shows an unlocked state, FIG. 4 shows a simple locked state, and FIG. 5 shows a locked state by screwing. Yes. For convenience, the drawings in FIGS. 2A, 3A, 4A, and 5A are drawn such that the upper direction is the left direction in FIG.

(Open state)
FIG. 2A is a plan view of the opening / closing structure 1 in a state where the lid is opened, and FIG. As shown in FIG. 2A, a rectangular opening 21 is formed in the housing 2, and the USB terminal 3 is provided inside the opening 21. A rectangular lid 5 for closing the opening 21 is attached to one end of the opening 21. As shown in FIG. 2B, the USB terminal 3 is connected to a printed circuit board (PCB) 4 provided inside the housing 2.

  As shown in FIG. 2B, the lid 5 has a hinge (connecting portion) 51, a slide member (first slide member) 52, and a rubber member 53. The hinge 51 is formed on one end side of the lid 5 and is connected to the one end side of the opening 21 of the housing 2 so as to be rotatable. As a result, the lid 5 rotates about the hinge 51 as a central axis. The rubber member 53 is attached to the inside of the lid 5 at a position that covers the USB terminal 3 with the lid 5 closed.

  The slide member 52 is provided on the other end side facing the hinge 51 of the lid 5. Further, by applying a force by pressing a finger against the upper surface of the slide member 52, the slide member 52 slides along the upper surface of the lid 5 in the longitudinal direction of the lid 5 (upward in FIG. 2B). It is held on the upper surface of the lid 5 so as to be possible.

  On the other hand, in a region adjacent to the other end of the opening 21 in the housing 2 along the longitudinal direction of the lid 5, a slide member (second slide member) 6 and a screw (fixing screw) 7 attach the lid 5. It is provided as a holding mechanism that holds the closed state. A hole through which the shaft of the screw 7 passes is provided at the center of the slide member 6. When the screw 7 is tightened, the seating surface of the screw 7 presses the slide member 6, so that the slide member 6 enters the region. Fixed. When the screw 7 is loosened, the slide member 6 can be slid in a predetermined direction (the right direction in FIG. 2B) by applying force by pressing the finger against the upper surface of the slide member 6. Yes.

  At the end of the slide member 6 on the opening 21 side, a locking portion 6 a that protrudes toward the opening 21 is formed so as to be locked with the end 52 a of the slide member 52. Specific contents of the locking between the locking portion 6a and the end portion 52a will be described later.

(Unlocked)
FIG. 3A is a plan view of the opening / closing structure 1 in a state where the lid 5 is closed (in an unlocked state), and FIG. 3B is a cross-sectional view taken along line AA of the opening / closing structure 1. As shown in FIG. 3B, the lid 5 closes the opening 21 and the rubber member 53 covers the USB terminal 3 to protect the USB terminal 3.

  In the state shown in FIG. 3, the slide member 52 is in the storage position (first position) in which the slide member 52 is stored. The slide member 52 is located between the accommodation position and a simple lock position (second position, see FIG. 4) on the other end side of the lid 5 with respect to the first position, and the end 52a of the slide member 52 projects from the lid 5. It can slide between. In the state shown in FIG. 3, the slide member 6 is in a contact position (third position) where the contact end 6 b provided at the end opposite to the locking portion 6 a contacts the housing 2. is there. When the screw 7 is loosened, the slide member 6 is a contact position and a fixed lock position (fourth position, FIG. 5) that is closer to the opening 21 than the contact position and can lock the slide member 52 at the storage position. 5). The slide member 6 is fixed by screws 7.

  As shown in FIG. 3 (b), when the slide member 52 and the slide member 6 are in the storage position and the contact position, respectively, the end portion 52a of the slide member 52 and the locking portion 6a of the slide member 6 are separated from each other. is doing. That is, since the end 52a is not locked to the locking portion 6a, the lid 5 can be opened.

  As shown in FIG. 3B, the portion of the lid 5 where the slide member 52 is provided is thinner in cross section than the other portion of the lid 5. Therefore, as shown in FIG. 3A, reinforcing portions 54 for increasing the strength of the lid 5 are formed on both sides of the slide member 52 in the direction perpendicular to the slide direction.

(Simple lock state)
FIG. 4A is a plan view of the opening / closing structure 1 in a state where the lid 5 is simply locked, and FIG. 4B is a cross-sectional view taken along line AA of the opening / closing structure 1.

  In the state shown in FIG. 3, when a finger is pressed against the upper surface of the slide member 52 and a force is applied in the left direction in the drawing to slide the slide member 52 to the protruding position, the simple lock state shown in FIG. In the state shown in FIG. 4, the slide member 6 remains in the contact position, whereas the slide member 52 is in the simple lock position. Thereby, since the edge part 52a of the slide member 52 is latched by the latching | locking part 6a of the slide member 6, the lid | cover 5 is simply locked.

  When the lid 5 is brought into the unlocked state again, the finger is pressed against the upper surface of the slide member 52, and a force is applied in the right direction in the figure to slide the slide member 52 to the accommodation position. Therefore, when the lid 5 is opened from the state shown in FIG. 4, it is not necessary to loosen the screw 7 using a screwdriver, and the lid 5 can be opened and closed with a finger.

(Fixed lock state)
FIG. 5A is a plan view of the opening / closing structure 1 in a state where the lid 5 is locked by screwing, and FIG. 5B is a cross-sectional view taken along the line AA of the opening / closing structure 1.

  In the state shown in FIG. 3, the screw 7 is loosened, the finger is pressed against the upper surface of the slide member 6 and a force is applied in the right direction in the figure, and the slide member 6 is slid to the fixed lock position (FIG. 5). Alternatively, in the state shown in FIG. 4, the finger is pressed against the upper surface of the slide member 6 to apply a force in the right direction in the figure, and the slide member 6 is slid to the fixed lock position while maintaining the locked state with the slide member 52. (FIG. 5). In the state shown in FIG. 5, the slide member 52 is in the storage position, while the slide member 6 is in the fixed lock position. Thereby, since the edge part 52a of the slide member 52 is latched by the latching | locking part 6a of the slide member 6, the cover 5 is locked. Furthermore, the lid 5 is fixedly locked by tightening the screw 7.

  When the lid 5 is brought into the unlocked state again, the screw 7 is loosened, the finger is pressed against the upper surface of the slide member 6 and a force is applied in the left direction in the figure to slide the slide member 6 to the contact position. That is, when the lid 5 is opened from the state shown in FIG. 5, it is necessary to loosen the screw 7 using a screwdriver, but an opening / closing structure that satisfies the IP standard of the industrial control device can be realized.

(Summary)
As described above, in the lid opening / closing structure 1 according to the present embodiment, both a simple lock capable of opening and closing the lid with a finger and a lock by screwing satisfying the IP standard are possible. Thereby, the usability of the programmable display can be improved. In the IP standard, it is sufficient that the lid 5 can be locked by screwing, and even in actual use, the lid 5 is not required to be locked by screwing.

  In this embodiment, an example in which the opening / closing structure according to the present invention is applied to a programmable display device has been described. However, the opening / closing structure according to the present invention can be applied to an industrial computer (IPC) or any other electronic device. .

  Further, in the present embodiment, the example in which the cover is protected by the USB terminal has been described. However, the protection target is not limited to this, but may be a terminal of another standard, a slot such as a memory card, a switch, or the like. Also good.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

  The opening / closing structure according to the present invention is applicable to any electronic device.

DESCRIPTION OF SYMBOLS 1 Opening-closing structure 2 Case 3 USB terminal 4 Printed circuit board 5 Lid 6 Slide member 6a Locking part 10 Programmable display 11 Display screen 21 Opening 51 Hinge 52 Slide member 52a End part 53 Rubber member 54 Reinforcement part

Claims (3)

A lid opening / closing structure comprising a lid for closing the opening of the housing and a holding mechanism for holding the lid in a closed state;
The lid is
A connecting portion formed on one end side of the lid and rotatably connected to the housing;
A first slide member provided on the other end side of the lid and slidable along the upper surface of the lid;
The holding mechanism is
A slidable second slide member facing the other end of the lid in a closed state at the opening; and a fixing screw capable of fixing the second slide member to the housing;
The first slide member is slidable between a first position and a second position on the other end side than the first position,
When the second slide member is not fixed by the fixing screw, the second slide member can slide between the third position and the fourth position on the opening side of the third position.
At the end of the second slide member, a locking portion for locking the end of the first slide member is formed,
With the lid closed, the first slide member is in the first position and the second slide member is in the fourth position, and the first slide member is in the second position and When the second slide member is in the third position, the end portion of the first slide member is locked to the locking portion of the second slide member,
When the first slide member and the second slide member are at the first position and the third position, respectively, the end portion of the first slide member and the locking portion of the second slide member are separated from each other. Opening and closing structure characterized by that. A programmable display having an opening in the housing,
A programmable display device comprising the opening / closing structure according to claim 1 as an opening / closing structure of a lid for closing the opening. An electronic device having an opening in a housing,
An electronic device comprising the opening / closing structure according to claim 1 as an opening / closing structure of a lid that closes the opening.

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