JP4312921B2 - Locking device for upward-rotating top plate in personal computer housing desk - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a locking device for an upward-turning top plate attached to a personal computer-accommodating desk, in particular, a long desk used in an educational facility such as a school or a training center.
[0002]
[Prior art]
There is a desk in which a notebook personal computer is accommodated in an accommodation space formed below the top plate whose upper surface is a writing surface, and the top personal computer can be used by rotating the top plate rearward and upward.
[0003]
[Problems to be solved by the invention]
However, with such a desk, there is a risk that the laptop will be stolen by opening the top board. Therefore, if a locking device is provided for each top board, the manufacturing cost will increase and the use of classrooms etc. When unlocked or not in use, the unlocking operation or locking operation must be performed by the number of top plates, which is complicated.
[0004]
In view of the above-mentioned problems of the conventional technology, the present invention can prevent theft of a personal computer accommodated below the top plate, and can simultaneously lock or unlock a plurality of top plates in one operation. And it aims at providing the locking device of the upward rotation type top plate in the personal computer accommodation type desk which the structure was simple and was able to manufacture cheaply.
[0005]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) A plurality of top plates are arranged on the bottom plate facing in the left-right direction so that they are arranged in the left-right direction and can be rotated rearward and upward from a horizontal position, and a personal computer is accommodated between each top plate and the bottom plate. In a personal computer storage desk provided with a storage space, a locking hole is provided in the lower surface of the front end of each top plate, an opening is provided in the upper surface of the front end of the bottom plate corresponding to each locking hole, and each of the front end portions of the bottom plate A latch having a hook portion at the tip below the opening, a locking position where the hook portion projects upward from the opening and engages with a locking hole of each top plate, and the hook portion is detached from the locking hole. And pivoted to the unlocked position retracted below the opening, and can be moved in the left-right direction by the key operation of the cylinder lock provided on the front surface of the bottom plate. The actuating plate facing in the left-right direction is linked to each latch, and all the latches , By a key operation of the cylinder lock, via the actuating plate, so it is rotated to the locked position and the unlocked position in synchronization with each other.
[0006]
(2) In the above item (1), in the housing space, with the mounting table on which the personal computer is mounted being rotated rearward and upward, cover the opening on the upper surface of the front end of the bottom plate forward. Attach as a drawer.
[0007]
(3) In the above item (1) or (2), an opening corresponding to the locking hole of each top plate is formed in the upper piece of the front plate of the bottom plate, and on the upper surface of the bottom piece of the front plate below each opening. The horizontal base piece of the support member is fixed, and the operating plate is slid in the left-right direction in a gap formed between the side piece rising from both side ends of the base piece and the rear piece rising from the rear end of the base piece. A pin that protrudes on the rear face of the lower end of the latch is drilled in the operating plate, with the middle part of the latch pivotally attached to the front piece that stands between the front end of the base piece and is movable. It fits into the long hole facing the up and down direction.
[0008]
(4) In the above item (3), a receiving piece folded back in a U-shape is provided at the rear end of the base piece of the support member, and the operating plate is slidably mounted in the left-right direction on the upper surface. To do.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a personal computer accommodation type desk provided with one embodiment of the present invention is explained in detail with reference to FIGS.
[0010]
This PC-accommodating desk is composed of a pair of left and right side plates (2) fixed to the upper part of a pair of left and right legs (1), and a horizontal bottom plate that faces the left and right sides connecting the lower portions of the left and right side plates (2). 3) and the vertical rear plate (4) facing the left and right direction connecting the rear portions and the side plates (2) at the left and right end portions are equally spaced from each other so that the bottom plate (3) and the rear plate (3) Two intermediate side plates (5) facing the front-rear direction fixed to the face plate (4) are provided.
[0011]
As shown in FIGS. 1 and 2, the rear end of the top plate (6) having an L-shape in side view is placed on the opposing surfaces of a pair of side plates (2) and (5) adjacent to each other, It is pivotally mounted with a pivot shaft facing in the left-right direction (not shown) so as to rotate between the vertical position with the front portion upward, and the top plate (6) rotated to the vertical position is By fitting the rear end portion from above into an upward fitting groove (not shown) formed in front of the rear plate (4), it is supported so as not to fall forward.
[0012]
In the personal computer desk, three top plates (6) are supported and juxtaposed as described above, and each top plate (6) can be used as a writing surface in the horizontal position. In the vertical position, it is used as a rear cover plate that covers the back of the notebook computer (P).
[0013]
As shown in FIG. 6, a rectangular notch (7) is provided at the corner between the lower end surface and the rear surface of the substantially lower portion (6a) depending from the front end of each top plate (6). And the reinforcement metal fitting (8) bent by the side view L shape is each fixed so that this notch (7) may be covered. A locking hole (8a) facing in the left-right direction is formed in the lower surface of each reinforcing bracket (8).
[0014]
An accommodation space for accommodating the notebook computer (P) by a space surrounded by a pair of side plates (2), (5), a bottom plate (3), a rear plate (4), and a top plate (6) facing each other. S) is formed, and in this storage space (S), a pair of front and rear rollers (11) each having a mounting table (9) on which a notebook computer (P) is mounted is attached to both sides thereof. Is fitted into a pair of front and rear guide grooves (11) each having a front-upward inclined portion provided on the opposing surfaces of both side plates (2) and (5), so that the front end is in front of the front end of the bottom plate (3). It is mounted so that it can be pulled out forward until it protrudes upward.
[0015]
At the front end of the bottom plate (3), a horizontally elongated front wing (12) is formed.
Three horizontally long slit-shaped openings (13) corresponding to the locking holes (8a) of the top plate (6) are formed on the upper piece (12a) of the front wing (12).
[0016]
A cylinder lock (15) facing in the front-rear direction having a key insertion hole (14) on the front end surface is mounted on the right side of the front rod (12) so as to be exposed on the front surface of the front rod (12). .
[0017]
The cylinder lock (15) is provided with a display window (not shown) configured to display the locked state and the unlocked state by, for example, a difference in color between red and blue. It is good.
[0018]
At the rear end of the cylinder lock (15), a key (not shown) is inserted into the key insertion hole (14), and the rotor (not shown) in the cylinder lock (15) is moved forward or backward together with the key. The operating piece (16) is mounted so as to be moved to the left, which is the locking direction, and to the right, which is the unlocking direction.
[0019]
The right end of the actuating plate (17) that extends horizontally to the left end of the front end (12) is connected to the left end of the actuating piece (16) with a set screw (18) or the like. Yes.
[0020]
On the upper surface of the bottom piece (12b) immediately below each opening (13) in the front end (12), a horizontal rectangular base piece (20) in a support member (19) formed by bending a metal plate is shown in the figure. It is fixed by an omitted set screw or welding.
[0021]
At the upper part of the front piece (21) that stands up from the front end of the base piece (20), an intermediate portion of a plate-like latch (22) that faces substantially vertically is provided with a stepped screw (pivot) (23) that faces in the front-rear direction. It is pivotally attached with a nut (24).
[0022]
At the upper end of the latch (22), with the top plate (6) closed, it can enter the locking hole (8a) through the opening (13) and engage / disengage with the right edge of the locking hole (8a). A hook portion (22a).
[0023]
At the lower end of the latch (22), a pin (25) facing rearward is projected, and this pin (25) is a long hole facing up and down that is drilled in three places on the operating plate (17). (26).
[0024]
The actuating plate (17) is placed on a receiving piece (27) folded back in a U-shape above and behind the center of the rear end of the base piece (20) in the support member (19), and the base piece (20 ) Between both side pieces (28) rising from both side edges of the rear piece and the rear piece (29) rising from both side edges of the base piece (20). It is slidably supported in the direction.
[0025]
As shown in FIG. 5, when the cylinder lock (15) is in the unlocked state, the operating piece (16) and the operating plate (17) are located at the right limit. At this time, the three latches (22) When the pin (25) is pulled rightward by the long hole (26), the hook portion (23a) is held in the unlocked position until it is retracted below the opening (13).
[0026]
In this state, any top plate (6) can be freely opened and closed without being obstructed by the latch (22).
[0027]
As shown in FIG. 2, when the mounting table (9) is pulled forward and upward with the top plate (6) lifted rearward, each opening (13) is concealed by the front portion of the mounting table (9). .
[0028]
As shown in FIG. 5, with the top plate (6) closed, a key is inserted into the key insertion hole (14) of the cylinder lock (15) and the internal rotor is rotated in the locking direction. As shown in FIG. 4, the operating piece (16) and the operating plate (17) are pushed leftward, and each pin (3) of the three latches (22) is moved by the long holes (26) of the operating plate (17). 25) is pushed to the left, and the three latches (22) have their hooks (22a) rushed into the locking holes (8a) through the openings (13) and locked. It is rotated to the locking position where it engages with the right edge of the hole (8a).
Therefore, none of the top plates (6) can be opened in this locked state.
[0029]
In order to return to the unlocked state shown in FIG. 5 from the locked state, a key may be inserted into the key insertion hole (14) and the rotor in the cylinder lock (15) may be rotated in the unlocking direction. As a result, the latches (22) are returned to the unlocked position by an operation opposite to the above-described operation, and all the top plates (6) can be opened.
[0030]
【The invention's effect】
According to the first aspect of the present invention, it is possible to simultaneously lock or unlock a plurality of top plates by simply operating a single cylinder lock. It is convenient for use in classrooms and can reliably prevent theft of personal computers.
Further, it is only necessary to provide a single cylinder lock for a plurality of top plates, and the other structure is simple, so that it can be manufactured easily and inexpensively.
[0031]
According to the second aspect of the present invention, the opening formed in the upper surface of the front end portion of the bottom plate is concealed from the mounting table by pulling the mounting table on which the personal computer is mounted forward, so that the appearance is good and the opening to the opening Intrusion of dust can be prevented.
[0032]
In addition to the bottom plate on which the locking device is mounted, a mounting table for mounting the personal computer is provided. Therefore, compared to the case where the personal computer is directly mounted on the top surface of the bottom plate, the locking device can be installed, removed, and maintained. It can be done easily.
[0033]
According to the third aspect of the present invention, the pivot support of the latch and the support and guide of the operation plate can be reliably performed by a single support member, and the structure can be simplified and the number of parts can be reduced. it can.
[0034]
According to the fourth aspect of the present invention, the operation plate is placed on the receiving piece formed as a part of the support member, thereby preventing the lower edge of the operation member from contacting the entire upper surface of the base piece of the support member. The contact area can be reduced so that the operating plate can slide smoothly in the left-right direction.
[Brief description of the drawings]
FIG. 1 is a perspective view of a personal computer accommodation desk provided with an embodiment of the present invention.
FIG. 2 is a side view showing a cutout of the main part in a state where the top plate is in a vertical position and the mounting table is pulled out.
FIG. 3 is a partially cutaway front view with the top plate closed.
4 is a partially cutaway enlarged front view of the main part in the locked state, similarly. FIG.
5 is a partially cutaway enlarged front view of the same part as FIG. 4 in an unlocked state. FIG.
6 is an enlarged longitudinal sectional side view taken along line VI-VI in FIG.
FIG. 7 is an exploded perspective view of a main part.
[Explanation of symbols]
(1) Leg
(2) Side plate
(3) Bottom plate
(4) Rear plate
(5) Side plate
(6) Top plate
(6a) hanging part
(7) Notch
(8) Reinforcing bracket
(8a) Locking hole
(9) Mounting table
(10) Roller
(11) Guide groove
(12) Outpost
(12a) Upper piece
(12b) Bottom piece
(13) Opening
(14) Key insertion hole
(15) Cylinder lock
(16) Actuator
(17) Actuating plate
(18) Set screw
(19) Support member
(20) Base piece
(21) Front piece
(22) Latch
(22a) Hook part
(23) Stepped screw
(24) Nut
(25) Pin
(26) Long hole
(27) Receiving piece
(28) Side piece
(29) Rear piece
(30) Gap
(P) Notebook PC
(S) Containment space

Claims (4)

A plurality of top plates are arranged side by side on the bottom plate facing in the left-right direction and mounted so that it can be rotated rearward and upward from a horizontal position, and an accommodation space for accommodating a personal computer is provided between each top plate and the bottom plate. In a computer-accommodated desk
A latch having a locking hole on the lower surface of the front end portion of each top plate, an opening on the upper surface of the front end portion of the bottom plate corresponding to each locking hole, and a hook portion at the tip below each opening at the front end portion of the bottom plate A locking position where the hook part protrudes upward from the opening and engages with a locking hole of each top plate, and an unlocking position where the hook part is detached from the locking hole and retracted below the opening. Pivotally mounted on the front surface of the bottom plate and operated by a key of a cylinder lock provided on the front surface of the bottom plate so as to be moved in the left-right direction. The personal computer accommodation type characterized in that it is linked to the latches, and all the latches can be rotated to the locked position and the unlocked position in synchronization with each other via the operation plate by the key operation of the cylinder lock. Locking device for upward-turning top plate at desk. A mounting table on which a personal computer is mounted is mounted in the housing space so that it can be pulled out forward so as to cover the opening on the top surface of the front end of the bottom plate with the top plate rotated rearward and upward. The locking device of the upward rotation type top plate in the personal computer accommodation desk of Claim 1. An opening corresponding to the locking hole of each top plate is formed in the upper piece of the front plate of the bottom plate, and a horizontal base piece of the support member is fixed to the upper surface of the bottom piece of the front plate below each opening, The operation plate is slidable in the left-right direction in a gap formed between a side piece standing from both side ends of the piece and a rear piece standing up from the rear end of the base piece, and before standing up from the front end of the base piece. The middle part of the latch is pivotally attached to the piece with a pivot that faces in the front-rear direction, and a pin protruding from the rear surface of the lower end of the latch is fitted into a long hole that is formed in the operating plate and faces in the vertical direction. The locking device for the upward-turning top plate in the personal computer accommodation desk according to claim 1 or 2. 4. A receiving piece folded back in a U-shape is provided at the rear end of the base piece of the support member, and an operating plate is slidably mounted on the upper surface of the receiving piece. Locking device for the upward-rotating top plate in the personal computer-contained desk.

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