JP2008270336A - Structure for preventing erroneous connection between connecting devices - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure capable of surely preventing erroneous connection by simply connecting devices under the correct combination. <P>SOLUTION: One connecting surface of one-side device 11 includes a one-side connecting part 14 for engagement and arrangement by positioning a one-side bush 22, while the other connecting surface 33 of the other-side device 31 includes the other-side connecting part 34 for engagement and arrangement by positioning the other-side bush 42. Good or no-good connection can be determined by detecting whether a projected part of the one-side bush 22 can be arranged within a projected groove part of the other-side bush 42 when connected. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention provides a device of a specific model in which a corresponding unit device including a specific input terminal determined in relation to the main unit device is connected to a main unit device including a combination of a data logger and an amplifier unit, for example. This is a technique related to a structure for preventing erroneous connection between connecting devices that can always be connected in the correct combination when used.

  For example, a main unit device configured by combining a data logger and an amplifier is used as a device of a specific model in which a corresponding unit device including a specific input terminal determined by the relationship with the main unit device is connected. There are many examples.

There are many examples in which devices in such a case are used as one device by being connected under a connection structure as disclosed in Patent Document 1 below, for example.
JP-A-2004-172468 (see FIG. 5 in the same document).

  The connection structure disclosed in FIG. 5 of Patent Document 1 is provided on the connection surface of the terminal plate unit with respect to each spacer member with a mounting hole arranged in the vertical direction of the connection surface on the input unit side. A method is adopted in which a screw is fed from a screw hole and screwed.

  Therefore, such a connection structure is not particularly problematic because each input unit and each terminal board unit can be simply combined as long as they have the same performance.

  However, although the performance of each input unit and each terminal board unit are different, but the external shape is the same, when trying to change the combination pattern according to individual models, the above Patent Document 1 Depending on the disclosed connection structure, there is a problem that it is difficult to connect under the correct combination.

  In view of the above-mentioned problems of the prior art, the present invention is for a connection that can easily prevent mutual misconnection by simply connecting the devices to each other in a correct combination determined by the relationship with a specific model. The object is to provide a structure for preventing misconnection between devices.

  The present invention has been made to achieve the above-described object, and includes at least a one-side device and another-side device that are connected to each other via the one-side connection surface and the other-side connection surface that are arranged to face each other. The one side connection surface is provided with a single protrusion projecting along the axial direction on the outer peripheral surface of the cylindrical bush main body portion, provided with a screw insertion hole, and the inner space of the bush main body portion is a partition wall In relation to the one-side bush that is partitioned by a portion, a circular concave portion in which the bush main body portion is fitted, and a radial concave direction that communicates with the circular concave portion and in the circumferential direction. A screw insertion through which the bushing body portion of the one-side bush is shallowly fitted and disposed is provided with a one-side coupling portion that is provided separately and includes a plurality of key grooves in which the protrusions are disposed. A cylindrical portion having a bottom with a hole, and an internal space of the cylindrical portion, A circular recess in which the cylindrical body portion is fitted and disposed in communication with the circular recess, in relation to the other bush having a protruding groove portion in which the protrusion portion is disposed in the one bush. The other side connecting portion that is formed in a plurality of positioning grooves that are provided outward in the radial direction and that are provided in the circumferential direction and in which the projecting groove portion is disposed, and the one side connecting portion when facing each other, The one-side device and the other-side device, which are provided at opposite positions and combined as the same model, are fitted to the other-side connecting portion of the other-side connecting surface and screwed to the other-side bush, The most important feature is that the one side connection portion of the one side connection surface that is directly opposed is connected to the other side bush via the one side bush that is freely screwed.

  In this case, when the one-side bush and the other-side bush are fitted and connected to each other, the protrusions of the one-side connection surface and the other-side connection surface make contact with the other side. It is preferable to have a seat height that can be avoided.

  According to the first aspect of the present invention, the one-side connecting surface of the one-side device includes the one-side connecting portion that can position and fit the one-side bush, and the other-side connecting surface of the other-side device is the other The other side connecting part that can position and fit the side bushing is provided, and the correctness of the connection is checked by whether or not the protruding part provided in the one side bushing can be arranged in the protruding groove part provided in the other side bush during the connection. Incorrect connection can be reliably prevented.

  According to the second aspect of the present invention, when the one side bush and the other side bush are fitted and connected to each other, the protruding member provided on the one side connecting surface and the other side connecting surface is on the other side. Since the seat height which can avoid contact | abutting is provided, the one side apparatus and another side apparatus can be stably connected mutually with the space | interval which can absorb the height of a protrusion member between them.

  FIG. 1 is an explanatory diagram showing a one-side connection surface on the one-side device side according to an example of the present invention. 2A and 2B are explanatory views of one-side bushes arranged on the one-side connecting surface side, in which (a) shows an overall perspective view and (b) shows a cross-sectional view of (a). FIG. 3 is an overall perspective view showing a state in which the one-side bush is arranged on the one-side device.

  On the other hand, FIG. 4 is explanatory drawing which shows the other side connection surface of the other apparatus side about an example of this invention. FIG. 5 is an explanatory view of the other side bush arranged on the other side connecting surface side, of which (a) is an overall perspective view seen from the back side, and (b) is laid with the front side up. The whole perspective view of a state is shown, respectively. FIG. 6 is an overall perspective view showing a state in which the other side bush is arranged on the other side device.

  According to these drawings, for example, a correspondence between a one-side device 11 as a main unit device formed by combining a data logger and an amplifier unit, and a specific input terminal determined by the relationship between the one-side device 11 and the like. It is configured by the other device 31 as a unit device, and can be used as a device of a specific model that connects the one device 11 and the other device 31.

  Further, the one-side housing 12 constituting the one-side device 11 and the other-side housing 32 constituting the other-side device 31 are the one-side connection surface 13 and the other-side housing 12 of the one-side housing 12. The other side connection surface 33 of the body 32 is connected under the arrangement relationship that faces each other.

  In this case, the one-side connection surface 13 of the one-side housing 12 has a circular concave portion 15 at the lower center portion thereof, communicates with the circular concave portion 15 and protrudes outward in the radial direction, and its circumferential direction. Are formed by providing one side connecting portion 14 comprising six key grooves 16 provided separately at equal intervals.

  Further, in the one side connecting portion 14, a one side bush 22 made of an appropriate synthetic resin material including an ABS material is fitted and arranged, and then screwed 18. The one-side bush 22 includes a cylindrical bush main body 23 having a single protrusion 24 projecting along the axial direction of the outer peripheral surface 23a, and an internal space 27 of the bush main body 23. A partition wall portion 25 including a screw insertion hole 26 that is partitioned into the one side space portion 27a and the other side space portion 27b is formed.

  In this case, the one-side bush 22 is arranged in the circular recess 15 in the one-side connecting portion 14 in a positional relationship where the other-side space portion 27 b faces the bush main body portion 23, and one key groove in the one-side connecting portion 14. As shown in FIG. 8, the screw 18 is fixed to the one side connecting portion 14 side in a state in which the protruding portion 24 is arranged in the inside 16.

  Further, the other side connection surface 33 of the other side housing 32 communicates with the one side connection portion 14 of the one side connection surface 13 and a circular recess 35 provided at a position where the one side connection surface coincides with the circular recess 35. The other side connecting portion 34 is formed by six positioning grooves 36 that protrude outward in the radial direction and are provided at equal intervals in the circumferential direction.

  In the other side connecting portion 34, the other side bush 42 made of an appropriate synthetic resin material including an ABS material is screwed as shown in FIG. The other side bush 42 communicates with a cylindrical body portion 43 having a bottom portion 44 with a screw insertion hole 45 into which the bush main body portion 23 of the one side bush 22 is shallowly fitted and disposed, and an internal space 43 a of the cylindrical body portion 43. Thus, it is formed with a single protruding groove portion 46 in which the protruding portion 24 of the one-side bush 22 is accommodated.

  In this case, the other-side bush 42 is disposed in a circular recess 35 in the other-side connecting portion 34 in a positional relationship in which the bottom portion 44 faces the cylindrical body portion 43, and in one positioning groove 36 in the other-side connecting portion 34. A screw 38 is fixed to the other connecting portion 34 side in a state in which the protruding groove portion 46 is disposed on the other side connecting portion 34 side.

  In addition, each of the one-side bush 22 and the other-side bush 42 is formed with a seating height for attaching the protruding member 19 included in the one-side connection surface 13 when the one-side bush 22 is fitted and connected to each other. Yes.

  Next, the operation and effect of the present invention having the above configuration will be described based on the illustrated example. First, the connection between the one-side device 11 and the other-side device 31 that can be used as a device of a specific model is performed on one side. This can be performed only when the one-side bush 22 included in the device 11 and the other-side bush 42 included in the other-side device 31 can be fitted to each other.

  That is, the one-side device 11 and the other-side device 31 used as an apparatus of a specific model are connected to the one-side connecting portion 14 of the one-side connecting surface 13 of the one-side device 11 under the positional relationship shown in FIG. The side bush 22 is fitted and arranged, and the other side bush 42 is fitted and arranged on the other side coupling portion 34 of the other side device 31 based on the positional relationship shown in FIG.

  Therefore, can the one-side device 11 and the other-side device 31 used as a device of one specific model arrange the protruding portion 24 included in the one-side bush 22 in the protruding groove portion 46 included in the other-side bush 42 when connected? Whether or not the connection is correct can be easily checked based on the result.

  Further, when the projecting groove 46 and the protrusion 24 are located at the same position at the time of connection as in the illustrated example, the one side bush 22 and the other side bush 42 are fitted together to identify one As a model device, it can be connected without error as shown in FIG.

  Moreover, in the illustrated example, the one side connecting portion 14 has the key grooves 16 at six locations, and the other side connecting portion 34 has the positioning grooves 36 at the same six locations. The bush 42 can be fitted and arranged in six arrangement patterns.

  Therefore, in the illustrated example, the one-side device 11 and the other-side device 31 can be connected without error as devices of six types of specific models.

  Moreover, each of the one-side bush 22 and the other-side bush 42 has a seating height for fitting with the projecting member 19 provided on the one-side connecting surface 13 when they are fitted and connected to each other, for example, as shown in FIG. Therefore, the one-side device 11 and the other-side device 31 can be stably connected to each other with a space that can absorb the height of the protruding member 19 interposed therebetween.

  The above is a description of the case where the present invention is applied to a data logger, and the specific contents thereof are not limited to this. For example, the key groove provided in the one-side connecting part and the positioning groove provided in the other-side connecting part are provided in two or more appropriate plural locations according to the number of types of specific models while maintaining the same positional relationship with each other. I can keep it.

FIG. 1 is an explanatory view showing a one-side connection surface on the one-side device side according to an example of the present invention. 2A and 2B are explanatory views of one-side bushes arranged on the one-side connecting surface side, in which (a) shows an overall perspective view and (b) shows a cross-sectional view of (a). The whole perspective view shown in the state where one side bush was arranged in one side equipment. Explanatory drawing which shows the other side connection surface of the other side apparatus side about an example of this invention. It is explanatory drawing of the other side bush arrange | positioned at this other side connection surface side, (a) is the whole perspective view seen from the back side, (b) is the whole in the state which laid down with the front side up A perspective view is shown respectively. The whole perspective view shown in the state where the other side bush was arranged in other side equipment. The whole perspective view which shows the example of a connection state of one side apparatus and another side apparatus by applying this invention. Sectional drawing which shows the fitting state of the one side bush and other side bush at the time of a connection.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 One side apparatus 12 Housing | casing 13 One side connection surface 14 One side connection part 15 Circular recessed part 16 Key groove 18 Screw 19 Projection member 22 One side bush 23 Bushing body part 24 Projection part 25 Bulkhead part 26 Screw insertion hole 27 Internal section 27a One side space portion 27b Other side space portion 31 Other side device 32 Other side housing 33 Other side connection surface 34 Other side connection portion 35 Circular recess portion 36 Positioning groove 38 Screw 42 Other side bush 43 Cylindrical portion 43a Internal space 44 Bottom portion 45 Screw insertion hole 46 Protruding groove

Claims (2)

It is composed of at least one side device and another side device that are connected to each other via the one side connection surface and the other side connection surface that are disposed facing each other.
The one side connection surface is provided with a single protrusion projecting along the axial direction on the outer peripheral surface of a cylindrical bush main body portion, provided with a screw insertion hole, and the internal space of the bush main body portion is a partition wall portion In relation to the one-side bush formed by partitioning with each other, a circular concave portion into which the bush main body portion is fitted, and outwardly in the radial direction in communication with the circular concave portion, and separately in the circumferential direction thereof A one-side connecting portion comprising a plurality of key grooves provided and provided with the protrusions;
The other side connection surface is connected to the cylindrical body portion having a bottom portion with a screw insertion hole in which the bush main body portion in the one side bush is shallowly fitted and disposed, and communicates with the internal space of the cylindrical body portion. A circular recess in which the cylindrical body portion is fitted and arranged in relation to the other bush having a single protruding groove portion in which the protrusion is arranged, and a radially outward direction communicating with the circular recess. The other side connecting portion formed of a plurality of positioning grooves that are provided separately in the circumferential direction thereof and in which the protruding groove portion is arranged, at a position facing the one side connecting portion when facing each other,
The one-side device and the other-side device combined as the same model are one side facing the other-side bush that is fitted and arranged in the other-side connecting portion of the other-side connecting surface and screwed. A structure for preventing erroneous connection between connecting devices, wherein the one side connection portion of the connection surface is connected to the other side bush via the one side bush that is freely screwed. Each of the one-side bush and the other-side bush can avoid contact with the mating side by the protrusions provided on the one-side connection surface and the other-side connection surface when they are fitted and connected to each other. The structure for preventing erroneous connection between connecting devices according to claim 1, wherein the structure is provided with a sitting height.

Images