JPH0718859Y2 - Electronic application device - Google Patents

Description

[Detailed description of the device] [Industrial applications]

This invention is a device in which a lid body is rotatable about a predetermined axis with respect to a main body and can be opened and closed, and in particular, a laptop personal computer having a locking mechanism with a simple structure between the lid body and the main body, The present invention relates to an electronic application device such as a word processor.

[Prior art]

In the conventional example, as shown in the perspective view of FIG. 3 whose appearance is common to the later-described embodiment of the present invention, a lid 10 having a display screen inside is rotated with respect to the main body 20 to open and close. It is a laptop computer or word processor with the following configuration. At this time, it is necessary to set the lid 10 to the locked state when the lid 10 is closed with respect to the main body 20, and to unlock it before opening the lid 10. This locking mechanism has a lid 1
0, provided on the front surface of the main body 20. This locking mechanism will be described with reference to FIG. 5, which is an exploded perspective view thereof. This locking mechanism is mainly the fifth
As shown in the figure, each one of the receiving member 25 on the lid 10 side, the hooking device 21,
It comprises a shaft 22, a torsion spring 23, and two retaining rings 24, and a hooking portion on the main body 20 side corresponding to the retaining member 21, which is not shown here. The receiving member 25 is a plate-like member that is bent in a substantially U-shape, and each hole 25a is provided coaxially with a bent portion corresponding to each side on both sides, and a hole 25b is provided in a portion corresponding to an intermediate side. Hook 21
Is a rectangular member, each protruding portion having a coaxial hole 21a to be fitted inside each bent portion of the receiving member 25, and a hollow portion 2 formed in the middle thereof.
1b and a hook 21c provided at the lower end. Axis 22
Is provided so as to pass through each of the holes 25a and 21a in common, a torsion spring 23 is inserted in the middle, and snap rings 24 are fitted to both ends. The state in which the above members are assembled is shown in the perspective view of FIG. A little supplementary explanation will be given. One end of the torsion spring 23 is inserted into the hole 25b (see FIG. 5) of the receiving member 25, and the other end is in contact with the back surface of the lower portion of the hollow portion 21b of the hook 21. Contact,
Retained. Fix the assembly unit of Fig. 4 to the lid 10,
When this is closed (moved downward in the figure), the hook
The hook 21c at the lower end of 12 is locked by a hook (not shown) on the mating side. On the contrary, in order to release the lock, the hook 21 is slightly rotated clockwise around the shaft 22.

[Problems to be solved by the device]

As described above, in the conventional technique, the structure is complicated, and the component parts are only the lid body 10 side, the receiving member 25, the hooking device 21, the shaft 22,
5 types of torsion spring 23 and snap ring 24 (6 points in total) are required,
It is especially difficult to attach the torsion spring 23. This prevents cost reduction and miniaturization. An object of the present invention is to solve the above problems of the conventional technique and to provide an electronic application device having a locking mechanism with a simple structure.

[Means for Solving the Problems]

In order to solve this problem, an electronic application device according to the present invention is a device in which a lid body can be opened and closed by rotating around a predetermined axis of the body, and a protrusion provided inside the lid body. A U-shaped groove that loosely fits into the portion, a contacted surface formed as one side surface of the U-shaped groove corresponding to an abutment provided on one side surface of the protruding portion, and a surface of the lid body. A latching member having a pressing surface located substantially in the same plane as the above; and a biasing member for biasing the latching member in a direction in which the contacted surface and the contacting surface are pressed and fixed to the inside of the lid body. A leaf spring; a hollow portion and a hooked portion, which correspond to the hooking member and are respectively provided on the outer wall and the inside of the main body, and the hooked portion; and the hooking member and the hooked member when the lid is closed. When the locking portions are locked and the pressing surface of the locking member is pressed against the bias of the leaf spring, Stop, between the latched portion is unlocked.

[Action]

The U-shaped groove of the latch is loosely engaged with the protrusion on the lid side and is rotatably supported in a small range. The abutment surface, which is one side surface of the U-shaped groove, and the protrusion are supported by the leaf spring. Is abutted against the contact surface of and is biased in the direction of being pressed and positioned. When the lid is closed with respect to the main body, the hooking tool is hooked on the hooked portion on the main body side, and the lid and the main body are locked. By pressing the pressing surface of the hook, the hook is unlocked when it is disengaged from the hooked portion, so that the lid can be opened with respect to the main body.

【Example】

An embodiment according to the present invention will be described below with reference to the drawings. FIG. 3 is an external perspective view of this embodiment, which is the same as that used in the description of the conventional example, and therefore the description thereof is omitted here. FIG. 1 is an exploded perspective view of a locking mechanism which is a main part of this embodiment. In FIG. 1, a hook 1 has a U-shaped groove 1a which has the same direction on the upper left side thereof and is divided into two parts, a hook portion 1b at a lower end portion, and projection portions 1c at front and rear side surfaces. A mountain-shaped projection 1d is provided on the right side of the central portion, and a pressing surface 1e is provided below the U-shaped groove 1a on the upper left side. On the other hand, inside the lid body 10, a protruding portion 5 having the same direction and divided and arranged in two places, and a fixed seat 6 are provided integrally with the lid body 10 by molding. Since the protruding portion 5 is loosely fitted in the U-shaped groove 1a, the latch 1 can be rotated left and right within a slight range with the substantially tip portion of the protruding portion 5 as a fulcrum. Fixed seat 6
The leaf spring 2 is fixed to the blade with a small screw 3. This leaf spring 2
Has a lower end portion bent to have rigidity against twisting, contacts the protrusion 1d of the latch 1 on its left side surface, and rotates in a clockwise direction around the tip of the protrusion 5 on the latch 1. We are adding urgency. Due to this urging, the projection 1c abuts a corresponding surface (not shown) inside the lid 10 so that the latch 1 does not rotate beyond a certain limit. It should be noted that, as will be described later, the limitation of this movement is also performed by the other contact surfaces, and the certainty thereof is enhanced. A hollow portion 9 is formed in the outer wall of the main body 20, through which the tip of the latch 1 can enter the inside of the main body 10 for locking. The hook will be provided below the hollow portion 9 as described later in detail. A hooking portion corresponding to the portion 1b is formed integrally with the main body 10. Regarding the operation of this locking mechanism, FIG. 2 (a), (b),
Description will be made with reference to the side sectional views at the respective operation stages of (c). When the lid 10 is closed with respect to the main body 20 as shown in FIG. 6A, the hook 1b of the latch 1 is urged to the left by the leaf spring 2 so that the hook 1b on the main body 20 side is locked. The lid 10 and the main body 20 are locked by being hooked on the hook portion 8 as a stopper portion. At this time, the lower surface of the protrusion 5 as the contact surface
The contact between the 5a and the lower surface 1f of the U-shaped groove 1a of the hook 1 as the contacted surface makes it possible to engage the protrusion 1c (see FIG. 1) described above. The positioning of the stopper 1 becomes more reliable. Next, when unlocking to open the lid 10, the hook 1
The hook portion 1b of the hook 1 may be removed from the hook portion 8 by pressing the pressing surface 1e of the rightward (see FIG. 2 (b)). In this state, if the lid 10 is lifted upward (see FIG. 2 (c)), it can be opened with respect to the main body 20. In addition, when closing the opened lid body 10, if the latch 1 is not pushed rightward in FIG. 2 (c) but pushed downward as it is, the second state is passed through the state of FIG. 2 (b). The state is shifted to the state shown in FIG. 7C and the locking is performed.

[Effect of device]

Therefore, according to this invention, the following excellent effects are obtained as compared with the conventional technique. (1) Since the locking mechanism has a simple structure, the number of parts is greatly reduced from the conventional 6 points to 2 points when compared for the same purpose. In particular, the fact that a leaf spring is used instead of the torsion spring for urging the latch makes the shape of the related portion simple. (2) With respect to the above item, the assembly of the locking mechanism becomes very easy. (3) Cost reduction can be achieved in relation to items (1) and (2). (4) Since the space occupied by the locking mechanism is small,
The device can be miniaturized. (5) Since the locking mechanism has high strength, there is little risk of failure or damage.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an essential part of an embodiment according to the present invention, and FIG. 2 is an explanatory view of its operation.
(B) and (c) are side sectional views at each operation stage, FIG. 3 is an external perspective view of this embodiment, FIG. 4 is a perspective view of a main part of a conventional example, and FIG. 5 is an exploded perspective view of the same. Is. Symbol Description 1: Latch, 1a: U-shaped groove, 1b: Hook, 1c, 1d: Projection, 1e: Pressing surface, 1f: Abutment surface, 2: Leaf spring, 5: Projection, 6: Fixed Seat, 8: Hook part, 10: Lid, 20: Main body.

Claims (1)

[Scope of utility model registration request] 1. A device in which a lid body is rotatable about a predetermined axis with respect to a main body and can be opened and closed, and a U-shaped groove that is loosely engaged with a protrusion provided inside the lid body, and the protrusion. A contacted surface formed as one side surface of the U-shaped groove corresponding to the contact surface provided on one side surface of the portion, and a pressing surface positioned substantially flush with the surface of the lid body. A latch, a leaf spring that biases the latch in the direction in which the contact surface and the contact surface are pressed, and is fixed to the inside of the lid; A hollow portion and a hooked portion, which are respectively provided on the outer wall and the inside of the main body, are provided, and when the lid is closed, the hooking tool and the hooked portion are locked, When the pressing surface of the latch is pressed against the bias of the leaf spring, the latch and the locked portion are unlocked. Electronic application device according to claim.