JPH0779028B2 - Connection element - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] A connection element capable of fitting a bush with a flange to a mounting screw and mounting it through a through hole of a frame, and preventing disconnection from a device due to vibration or impact. A connecting element that is attached to a frame that holds a device, is connected to a connecting terminal of the device to form a circuit, and connects the device to the frame. And a connector is planted on a pair of opposite side surfaces, and a front end portion and a rear end portion of the connector are provided on the element main body protruding from the respective surfaces, and the rear end portion of the element main body is provided on the protruding side surface. Screw holes, a bush with a predetermined length and a flange at one end, and a mounting screw that fits into the bush and is formed longer than the length of the bush, and that is screwed into the screw hole. The fixing screw fitted in the bush is fixed to the element body by screwing the mounting screw fitted in the bush into the screw hole through the through hole provided in the frame in which the bush is smaller than the diameter of the flange and in which the bush is slidably fitted.

[Industrial application field]

The present invention relates to a connecting element used in a data transfer device such as a portable terminal device, and more particularly to a connecting element that can be attached to a mounting screw through a through hole of a frame by fitting a bush with a flange. Is.

Recently, various portable terminal devices (called as handy terminal, handheld computer, or votable memo) have been developed and put into practical use, inventory of goods, route sales, financial external relations support work, or electricity and gas meter reading work. It is used for etc.

The data input to the device is later transferred to a host computer (hereinafter referred to as a host) or the like.

In these devices, the device body is attached to the frame, and it is stored in a case and carried by vehicle or mobile, but due to vibration and shock during transportation, the interface element that attaches the device body to the frame is connected to the device body. There is a demand for an interface element that prevents the main body of the device from coming off due to vibration or shock, because the input data cannot be processed due to the coming off.

[Conventional technology]

FIG. 3 is a block diagram showing a conventional example of a terminal device carried by a salesperson such as a financial institution, (a) is a side view of the mobile terminal device,
(B) is a plan view of the optical interface element. The same reference numerals denote the same objects throughout the drawings.

As shown in FIG. 3 (a), the optical interface element 2a is fixed to the U-shaped bottom portion of the frame 3a having a stepped U-shaped cross section with mounting screws 6a and 6b. The front end portion of the connector 20a of the optical interface element 20a is inserted into the connector portion 10a at one end of the device 1a for connection, and the rear end portion of the connector 20a is connected to the device 1a via a square hole (not shown) of the frame 3a. The circuit of the device 1a is configured by connecting to a control printed board (not shown) provided outside, and the device 1a is fixed and held by the frame 3a.

The frame 3a holding the device 1a is housed in a case 4 with an opening / closing cover 40, and the device 1a and the frame 3a are held by a holding member such as a cushioning member 41. A handle 42 is provided on the case 4 and is carried by the handle 42 when being carried.

As shown in FIG. 3 (b), the optical interface device 2a
Is made of an insulating material, and the connector 20 is provided on a pair of opposite side surfaces.
a is planted, the front end and the rear end of the connector 20a project from their respective surfaces, and the screw hole 2 is formed on the surface from which the rear end of the connector 20a projects.
1a and 21b are provided. The mounting screws 6a, 6b are screw holes 21 through the fool holes 30a, 30b provided in the frame 3a.
It is screwed to a and 21b.

With such a configuration, when the device 1a is used on the go, the opening / closing cover 40 is opened and data is input from a keyboard (not shown). The input data is stored in a memory (not shown) in the device 1a.

When data is transferred to a host computer or the like at a branch of a financial institution, the optical interface element 2a and the connector section 10a are disconnected, the device 1a is taken out of the frame 3a, and the receiving device (not shown) is connected to receive the data. Data is transferred to the host computer etc. via the device.

[Problems to be Solved by the Invention]

According to the above conventional method, since the optical interface element is fixed to the frame and is a portable terminal device,
Since it is always carried by car or mobile, it is fixed by the optical interface element to the frame with the movement amount that the gap between the device and the cushioning member or the cushioning member holding the device is compressed by the shock caused by the vibration during transportation or the drop. However, there is a problem in that the connection between the connector part of the device and the optical interface element is disconnected and disconnected, and even if the open / close cover is opened and operated, data processing cannot be performed.

It is an object of the present invention to provide a contact element that can prevent disconnection from the device due to vibration or shock.

[Means for Solving the Problems]

FIG. 1 is a principle diagram of the present invention. In the figure, 1 is a device, 2 is an element body, 3 is a frame, 10 is a connection terminal, 20 is a connector, 21 is a screw hole, 30 is a through hole, 5 has a predetermined length, and a flange 50 is provided at one end. Bushing 6 is formed in the bush 5, and is a mounting screw which is fitted into the bush 5, is formed longer than the length of the bush 5, and is screwed into the screw hole 21.

Reference numeral 30 denotes a through hole which is provided in the frame 3 and has a diameter smaller than that of the flange 50 and into which the bush 5 is slidably fitted. Therefore, the mounting screw 6 fitted into the bush 5 is screwed into the screw hole 21 through the through hole 30. Bush 5 on the element body 2
Is configured to be fixed.

[Action]

When the bush 5 is fitted into the through hole 30 of the frame 3 and the mounting screw 6 is screwed into the screw hole 20, and the connecting terminal 10 of the device 1 is connected to the connector 20 of the element body 2 fixed to the bush 5, The distance from the end surface of the bush 5 to the flange 50 is the slidable distance of the bush 5, and even if the device 1 moves due to vibration or impact, if the slidable distance is within this range, the bush 5 will fit into the through hole 30. The connection terminal 10 of the device 1 does not come off from the connector 20 of the element body 2 by sliding.

Therefore, the use of the device 1 is not hindered.

〔Example〕

2A and 2B are configuration diagrams showing an embodiment of the present invention. FIG. 2A is a side view, FIG. 2B is an enlarged side view of essential parts, and FIG. 2C is a plan view of an optical interface element. The same reference numerals denote the same objects throughout the drawings.

In FIG. 2, the same names as those in FIG. 1 correspond to each other,
Also, the optical interface device 2b and the connector unit 10 of FIG.
a corresponds to the element body 2 and the connection terminal 10 in FIG. 1, respectively.

As shown in FIGS. 2 (a) and (b), a plurality of bushes 5a, 5b described below are slidably fitted into the U-shaped bottom portion of the frame 3b having a U-shaped cross section. Through hole 30
c and 30d are provided.

The bushes 5a, 5b have the mounting screws 6c, 6d fitted therein, have a predetermined length shorter than the mounting screws 6c, 6d, and have a flange 50 at one end.
a and 50b are formed. The mounting screws 6c and 6d have screw holes 21
Screw to a, 21b.

Further, the through holes 30c, 30d of the frame 3b are formed smaller than the diameters of the flanges 50a, 50b, and the through holes 30c, 30d on the outer side of the frame 3b are formed.
Guide parts 31a, which guide the flanges 50a, 50b above and below d
31b is formed.

Then, the mounting screws 6c, 6d fitted in the bushes 5a, 5b are screwed into the screw holes 21a, 21b through the through holes 30c, 30d, and the bushes 5a, 5b are fixed to the optical interface element 2b. The distance from the end surfaces of the bushes 5a, 5b to the flanges 50a, 50b, that is, the slidable distance a of the bushes 5a, 5b is compressed by the gap between the cushioning member 41 and the device 1a and the device 1a due to vibration or impact. It is set to be larger than the movement amount b of the device 1a including the compression amount of the cushioning member 41 to

With such a configuration, even if vibration or shock is applied to the device 1a during transportation by vehicle or mobile, the movement of the device 1a is within the range of the slidable distance a, and thus the bushes 5a, 5b.
Does not slide into the through hole 30a, and the connector portion 10a of the mounting device 1a does not come off from the connector 20 of the optical interface element 2b. Therefore, the use of the device 1a is not hindered.

In the above example, the case where the connection element is the optical interface element has been described, but it goes without saying that the same can be applied to other connection elements, for example, a contact-connected connector or the like.

〔The invention's effect〕

As described above, according to the present invention, a device that is connected to a circuit by connecting to a connecting element and is held on a frame is subjected to a bushing fitted in a through hole of the frame even if vibration or impact is applied during transportation. There is an effect that it is possible to prevent the connection element and the device from moving together due to the slidable distance and disconnecting the connection element from the device, and to prevent the use of the device from being disturbed.

[Brief description of drawings]

FIG. 1 is a principle diagram of the present invention, FIG. 2 is a configuration diagram showing an embodiment of the present invention, and FIG. 3 is a configuration diagram showing a conventional portable terminal device. In the figure, 1,1a is a device, 2 is an element body, 2a and 2b are optical interface elements, 3,3a and 3b are frames, 5,5a are bushes, and 6,6a to 6d.
Is a mounting screw, 10 is a connection terminal, 10a is a connector part, 20, 20
a is a connector, 21,21a and 21b are screw holes, and 30,30c and 30d are through holes.

Claims (1)

[Claims] 1. A device which is attached to a frame (3) holding a device (1) and which is connected to a connection terminal (10) of the device (1) to form a circuit and which is attached to the frame (3). )
A connecting element formed of an insulating material and connected to a pair of opposing side faces (2
0) is implanted in the element body (2) in which the front end portion and the rear end portion of the connector (20) protrude from their respective surfaces, and the side surface from which the rear end portion of the element body (2) protrudes. A bush (5) having a screw hole (21) provided, a predetermined length, and a flange (50) formed at one end, and a bush (5) fitted into the bush (5) to obtain the length of the bush (5). The frame (3) which is formed longer than the length and comprises a mounting screw (6) which is screwed into the screw hole (21) and which is smaller than the diameter of the flange (50) and into which the bush (5) is slidably fitted. The mounting screw (6) fitted in the bush (5) is screwed into the screw hole (21) through a through hole (30) provided in the bush (5) to the element body (2). ) Is fixed, the connecting element characterized by the above-mentioned.