Patent Description:
A conventional terminal device or wire pressing terminal has an insulation case (generally made of plastic material), a metal component (or so-called electrical conductive component) and a leaf spring conductor (or so-called metal leaf spring). The metal component and the leaf spring conductor are enclosed in the insulation case to press and electrically connect with or release a conductive wire plugged in the terminal device.

Such electrical connection terminal devices include two types. The first type of electrical connection terminal device is inserted on a circuit board such as printed circuit board (PCB). For example, <CIT> "electrical connection terminal", <CIT> and <CIT>, disclose typical examples. The second type of electrical connection terminal device is latched with a grounding rail (or conductive rail) in a row to set up a common grounding device of an electrical apparatus or mechanical equipment for conducting out the residual voltage or static of the machine. For example, <CIT>, <CIT>, <CIT> "rail-type terminal block, <CIT> "connection terminal", <CIT> "electrical connection terminal", <CIT> and <CIT> "ground conductor terminal" disclose typical embodiments.

Such electrical connection terminal (or rail-type electrical connection terminal) generally includes an insulation case having a wire plug-in hole for the conductive wire to plug into the interior of the case. The case defines a chamber in which a plate-shaped conductive support (or conductive component) is mounted for pivotally connecting with a grounding conductive wire coming from a machine or an apparatus. The conductive component has a metal grounding member, which is soldered, riveted or connected on the conductive support. The metal grounding member has two ends respectively fastened on a grounding rail (or conductive rail). An operator can use a tool (such as a screwdriver) to hook and pull a hook-shaped foot section formed on a lower side of the insulation case. The foot section drives one end of the grounding member to make the same outward deform and deflect so as to unfasten the grounding member from the rail. The assembling structure of the conventional electrical connection terminal has some shortcomings in structure and operation application. For example, an operator needs to outward hook and pull the structures of two ends of the grounding member to make the same deform for unfastening the grounding member from the rail. In the case of improper operation and/or long-term (or highly frequent) use, the fastening and securing effect of the grounding member to the rail in successive use is apt to be deteriorated. This consequently affects the conductive effect of the conductive component.

<CIT> discloses a conductive component structure of rail-type terminal device including a housing and a grounding member installed in the housing and a leaf spring mount. The grounding member has pins, whereby the grounding member can be plugged in the leaf spring mount. Two ends of the grounding member are formed with hook-like sections, whereby the grounding member is detachably latched with the grounding rail. In addition, a bow section is integrally formed between the hook-like sections of the grounding member for enhancing elasticity of the grounding member.

A conventional terminal structure employing multiple side-by-side assembled grounding members has been also disclosed. For example, <CIT>, <CIT> and <CIT> disclose typical embodiments.

However, as well known by those who are skilled in this field, the structural form of multiple side-by-side assembled grounding members not only leads to increase of material cost, but also requires very great operation force applied to the grounding members for pulling the grounding members to outward deflect. Therefore, it is laborious to operate.

In order to improve the aforesaid shortcomings, a structural form of a grounding member assembled an elastic member has been disclosed (i.e. <CIT>). The grounding member has a base section pivotally connectable with a conductive connector, a first section and a second connected with the base section. The first and second sections are respectively formed with a bow portion and a first portion and a second portion connected with the bow portion.

The first and second portions can be respectively fastened on a grounding rail. In addition, a load arm and a U-shaped elastic member assembled with the load arm are respectively disposed on the first section and/or the second section. In response to the motion of the first portion and/or the second portion, the U-shaped elastic member stores compression energy or release compression energy to help in enhancing the elastic securing effect (force) of the first portion and/or the second portion fastened on the grounding rail.

It should be noted that the aforesaid U-shaped elastic member singly provides a pushback action force after compressed. In normal state, the U-shaped elastic member is repeatedly compressed and deformed and then restored to its initial state. In the case of long-term (or highly frequent) use, material fatigue of the elastic member is easy to take place or even the elastic member will be disabled. This will deteriorate or reduce the assistance effect of the elastic member in securely fastening the grounding member on the rail. This is not what we expect.

To speak representatively, the above reveals some shortcomings existing in the conventional electrical connection terminal device in structure assembly design and application. In case the structural form of the conductive component or the grounding member is redesigned to be different from the conventional electrical connection terminal, the use form of the electrical connection terminal can be changed to practically widen the application range thereof.

It is found that the structural form of an optimal terminal device or conductive component must overcome or improve the aforesaid shortcomings of the conventional electrical connection terminal and include several design considerations as follows:.

The aforesaid pressure resistant effect means that when the elastic unit is compressed to store energy, the elastic unit will instinctively provide (tension) pushback force or restore to its initial state. The tensile effect means when tensioned to store energy, the elastic unit will instinctively provide back pulling force or restore its initial state.

All the above issues are not taught or substantially disclosed in the above references.

It is therefore a primary object of the present invention to provide, according to claim <NUM>, a conductive component structure of rail-type terminal device, which includes a conductive component disposed in an insulation case body. The conductive component has a base section, a first section and a second section connected with the base section. The first section and the second section are respectively formed with a bow portion, a first portion and a second portion connected with the bow portion and fastened on a grounding rail. A load arm and an elastic unit assembled with the load arm are disposed on the first section and/or the second section. The elastic unit includes a first elastic section and a second elastic section. The load arm passes through the first elastic section and only through a part of the second elastic section. When the load arm is (displaced) or moved, in response to the (displacement) or motion of the load arm, the first elastic section and the second elastic section (at the same time) respectively provide tension (or pushback force) and pulling force effect so as to enhance the secure connection force of the conductive component fastened on the grounding rail. Accordingly, elastic fatigue of the elastic unit is not easy to take place. This improves the shortcoming of the conventional terminal device that in case of long-term (or highly frequent) use of one single elastic member, elastic (or material) fatigue of the elastic member is easy to take place to affect the securing effect.

In the above conductive component structure of rail-type terminal device, the first elastic section and the second elastic section respectively have main arms and subsidiary arms and (bow-shaped) bridge sections connected between the main arms and the subsidiary arms. The subsidiary arm of the first elastic section is connected with the main arm of the second elastic section. The load arm at least passes through the main arm and the subsidiary arm of the first elastic section and the main arm of the second elastic section. When the load arm is (displaced) and moved, in response to the (displacement) and motion of the load arm, the first elastic section is compressed, while the second elastic section is tensioned. When the load arm is moved back or restored to its home position, the first elastic section releases the stored energy to provide tension (or pushback force) effect, while the second elastic section releases the stored energy to provide tensile (or back pulling force). This helps in restoring the first portion and the second portion to their initial states.

In the above conductive component structure of rail-type terminal device, a (bow-shaped) subsidiary bridge section is formed between the subsidiary arm of the first elastic unit and the main arm of the second elastic section, whereby the elastic unit substantially has the form of an M-shaped structure or the elastic unit substantially has the form of a waved structure (or has a system of third elastic section). This enhances the pressure resistant effect (or pushback force) of the elastic unit (or the first elastic section) and the tensile effect (or back pulling force) of the second elastic section.

In the above conductive component structure of rail-type terminal device, the subsidiary arm of the second elastic section (and/or the first elastic section) is connected with a (bow-shaped) subsidiary bridge section. The subsidiary bridge section is connected with an extension arm. The extension arm is connected with a (bow-shaped) secondary bridge section. The secondary bridge section is connected with a secondary arm, whereby the second elastic section (and/or the first elastic section) substantially has the form of an M-shaped structure or the elastic unit substantially has the form of a waved structure.

The present invention can be best understood through the following description and accompanying drawings, wherein:.

Please refer to <FIG>, <FIG> and <FIG>. The conductive component structure of the rail-type terminal device of the present invention includes a conductive component (or grounding member) <NUM>. The conductive component <NUM> is mounted in a case body <NUM> made of insulation material to form an electrical terminal device or wire connection terminal. (The case body <NUM> has a conductive module <NUM> for conductive wires to plug in and connect therewith).

The upper section, upper side, lower section, lower side, right side, left side, lateral side, etc. mentioned hereinafter are recited with the direction of the drawings as the reference direction.

In a preferred embodiment, the conductive component <NUM> substantially has the form of a plate-shaped structure having a base section 10a assembled with the conductive module <NUM>, a first section <NUM> and a second section <NUM> connected with the base section 10a and extending to two lateral sides of the drawing. The first section <NUM> and the second section <NUM> are respectively formed with a bow portion <NUM>, a first portion <NUM> and a second portion <NUM> connected with the bow portion <NUM>. The first and second portions <NUM>, <NUM> are respectively (elastically) fastened on a grounding rail (not shown) to achieve electrical grounding effect. Basically, the case body <NUM> has a first assembling section <NUM> and a second assembling section <NUM> respectively assembled with or locating a tail section 14a of the first portion <NUM> and a tail section 15a of the second portion <NUM> to help the case body <NUM> in receiving or locating the conductive component <NUM>. As shown in the drawings, a load arm <NUM> and an elastic unit <NUM> assembled with the load arm <NUM> are disposed on the first section and/or the second section <NUM>. The elastic unit <NUM> includes a first elastic section <NUM> and a second elastic section <NUM>. The load arm <NUM> passes through the first elastic section <NUM> and only through a part of the second elastic section <NUM>. When the load arm <NUM> is (displaced) moved, in response to the (displacement) motion of the load arm <NUM>, the first and second elastic sections <NUM>, <NUM> (at the same time) respectively provide tension (or pushback force) and pulling force effect. This enhances the secure connection force of the conductive component <NUM> fastened on the grounding rail. Also, elastic fatigue of the elastic unit <NUM> is not easy to take place so as to improve the shortcoming of the conventional conductive component that in the case of long-term (or highly frequent) use, elastic (or material) fatigue of one single elastic member is easy to take place to affect the securing effect.

To speak more specifically, the first section <NUM> and/or the second section <NUM> define a space <NUM>. In an area in adjacency to the space <NUM>, on the upper and lower sides of the load arm <NUM> are respectively disposed an upper arm <NUM>, a shoulder section 17a connected with the upper arm <NUM>, a lower arm <NUM> and a shoulder section 18a connected with the lower arm <NUM> on the first section <NUM> and/or the second section <NUM>. In addition, an assembling section <NUM> in the form of perforation structure is disposed between the space <NUM> and the base section 10a.

In this embodiment, the upper arm <NUM> and the lower arm <NUM> are respectively formed with raised sections 17b, 18b. The shoulder section 17a of the upper arm <NUM> cooperates with the raised section 17b of the upper arm <NUM> and the shoulder section 18a of the lower arm <NUM> cooperates with the raised section 18b of the lower arm <NUM> to help in mounting the elastic unit <NUM>.

It should be noted that the raised section 17b and/or the raised section 18b also serve as restriction systems for restraining the motional range or displacement of the first elastic section <NUM> and/or the second elastic section <NUM> to lower the possibility of deformation or elastic (or material) fatigue of the first portion <NUM> and second portion <NUM> and/or the first elastic section <NUM> and second elastic section <NUM> due to improper operation of an operation or long-term (or highly frequent) use.

As shown in <FIG> and <FIG>, the load arm <NUM> is a T-shaped structure having a subsidiary section 16a. One end of the load arm <NUM> is connected with the first portion <NUM> (and/or the second portion <NUM>). The other end or at least a part (and the subsidiary section 16a) of the load arm <NUM> are positioned in the space <NUM>.

In this embodiment, the first elastic section <NUM> and the second elastic section <NUM> of the elastic unit <NUM> can be a two-piece structure or integrally connected with each other to form a substantially M-shaped structure. The first elastic section <NUM> and/or the second elastic section <NUM> of the elastic unit <NUM> alternatively can have the form of a coiled spring.

As shown in the drawings, the first elastic section <NUM> and the second elastic section <NUM> respectively have main arms 21a, 22a and subsidiary arms 21b, 22b and (bow-shaped) bridge sections 21c, 22c connected between the main arms 21a, 22a and the subsidiary arms 21b, 22b. The subsidiary arm 21b of the first elastic section <NUM> is attached to or connected with the main arm 22a of the second elastic section <NUM>.

As shown in the drawings, the main arm 21a and the subsidiary arm 21b of the first elastic section <NUM> and the main arm 22a and the subsidiary arm 22b of the second elastic section <NUM> are respectively formed with arcuate sections <NUM> for enhancing the structural strength of the main arms 21a, 22a and the subsidiary arms 21b, 22b. In addition, the load arm <NUM> at least passes through the main arm 21a and the subsidiary arm 21b of the first elastic section <NUM> and the main arm 22a of the second elastic section <NUM>, when the load arm <NUM> is (displaced) moved, in response to the (displacement) motion of the load arm <NUM>, the first elastic section <NUM> is compressed, while the second elastic section <NUM> is tensioned.

Moreover, when the load arm <NUM> (and/or the subsidiary section 16a) is restored or moved back, the first elastic section <NUM> releases the stored energy to provide tension (or pushback force), while the second elastic section <NUM> releases the stored energy to provide pulling force (or back pulling force). This helps in storing the first portion <NUM> and/or the second portion <NUM> to their initial states (or home positions without being forced).

To speak more specifically, the main arm 21a and the subsidiary arm 21b of the first elastic section <NUM> and the main arm 22a and the subsidiary arm 22b of the second elastic section <NUM> are respectively formed with splits <NUM>, which permit the load arm <NUM> to pass through and/or assembled with the load arm <NUM>.

Therefore, the main arm 21a of the first elastic section <NUM> is positioned between the shoulder sections 17a, 18a and the raised sections 17b, 18b, whereby the main arm 21a of the first elastic section <NUM> is leant against the shoulder sections 17a, 18a (or the main arm 21a of the first elastic section <NUM> is positioned between the first portion <NUM> (and/or the second portion <NUM>) and the raised sections 17b, 18b, whereby the main arm 21a of the first elastic section <NUM> is leant against the first portion <NUM> (and/or the second portion <NUM>). The subsidiary arm 21b of the first elastic section <NUM> and the main arm 22a of the second elastic section <NUM> are positioned between the raised sections 17b, 18b and the subsidiary section 16a, whereby the main arm 22a of the second elastic section <NUM> is leant against the subsidiary section 16a. The subsidiary arm 22b of the second elastic section <NUM> is positioned on the assembling section <NUM>.

In a preferred embodiment, the subsidiary arm 22b of the second elastic section <NUM> can be secured to the case body <NUM>. Alternatively, the assembling section is disposed on the case body <NUM> for fixing the subsidiary arm 22b of the second elastic section <NUM>. In addition, the case body <NUM> can be formed with a chamber <NUM> for (helping) receiving the elastic unit <NUM>.

As shown in <FIG> and <FIG>, a stop section <NUM> in the form of a rib body is disposed on the case body <NUM> for restricting the moving distance or displacement of the first portion <NUM> (and/or the second portion <NUM>) or the load arm <NUM> of the conductive component so as to lower the possibility of elastic (or material) fatigue or breakage of the first portion <NUM> (or the second portion <NUM>) due to improper operation of an operation or long-term (or highly frequent) use, which will sequentially affect the fastening and securing effect of the rail and the conduction effect of the conductive component.

Please refer to <FIG>. When an operator operates a tool <NUM> (such as a screwdriver) to pull a foot-like section <NUM> on a lower side of the case body <NUM> outward (or toward the left side of the drawing), the case body <NUM> will drive the first portion <NUM> of the conductive component to move toward the left side of the drawing. In cooperation with the first portion <NUM>, which moves to the position of the stop section <NUM>, some motions take place as follows:.

That is, the operator can perform the above operation to unfasten the first portion (and/or the second portion <NUM>) from the rail.

When the operation force disappears, the first elastic section <NUM> of the elastic unit <NUM> will release the previously stored energy due to compression, whereby the subsidiary arm 21b of the first elastic section <NUM> pushes back the subsidiary section 16a of the load arm <NUM> to move toward the right side of the drawing. Also, the second elastic section <NUM> will release the previously stored energy due to tension, whereby the main arm 22a of the second elastic section <NUM> pulls back the subsidiary section 16a of the load arm <NUM> to move toward the right side of the drawing to together help in elastically storing the first portion <NUM> (and/or the second portion <NUM>) to their initial positions as shown by the phantom line of <FIG>.

It should be noted that when an operator operates the conductive component <NUM> to fasten with the (grounding) rail, the first portion <NUM> (and/or the second portion <NUM>) is slightly (expanded) tensioned. At the same time, the load arm <NUM> (or the subsidiary section 16a) is driven to make the first elastic section <NUM> of the elastic unit <NUM> provide a pressure resistant action force (or pushback force) and/or make the second elastic section <NUM> provide a tensile action force (or back pulling force), whereby the elastic unit <NUM> helps in enhancing the fastening force and security of the conductive component <NUM> (for fastening the conductive component on the rail).

Please refer to <FIG>, which shows the structure of a preferred embodiment of the elastic unit <NUM> of the present invention. The first elastic section <NUM> of the elastic unit <NUM> is a U-shaped structure. The split <NUM> extends along the main arm 21a of the first elastic section <NUM> (or the U-shaped structure) through the bridge section 21c to the subsidiary arm 21b. In addition, the tail end of the main arm 21a and the tail end of the subsidiary arm 21b are respectively formed with closed section <NUM>. Therefore, when the load arm <NUM> is assembled with the split <NUM> of the first elastic section <NUM>, the closed sections <NUM> help in securely assembling the split <NUM> of the first elastic section <NUM> with the load arm <NUM>.

<FIG> also shows that the arcuate sections <NUM> of the main arm 21a and the subsidiary arm 21b of the first elastic section <NUM> are arced structures bent toward each other, while the arcuate sections <NUM> of the main arm 22a and the subsidiary arm 22b of the second elastic section <NUM> are arced structures bent away from each other. Accordingly, the arcuate section <NUM> of the main arm 22a of the second elastic section <NUM> is overlapped with or attached to the arcuate section <NUM> of the subsidiary arm 21b of the first elastic section <NUM>.

Please refer to <FIG>, which shows the structure of a modified embodiment of the elastic unit <NUM> of the present invention. The arcuate sections <NUM> of the main arm 21a and the subsidiary arm 21b of the first elastic section <NUM> are arced structures bent toward each other and the arcuate sections <NUM> of the main arm 22a and the subsidiary arm 22b of the second elastic section <NUM> are arced structures also bent toward each other. Accordingly, the arcuate section <NUM> of the main arm 22a of the second elastic section <NUM> and the arcuate section <NUM> of the subsidiary arm 21b of the first elastic section <NUM> together define a void section <NUM>.

Please refer to <FIG>, <FIG> and <FIG>, which show the structure of a modified embodiment of the elastic unit <NUM> in adaptation to the case body <NUM> of the present invention. The elastic unit <NUM> has a (bow-shaped) subsidiary bridge section <NUM> formed between the subsidiary arm 21b of the first elastic unit <NUM> and the main arm 22a of the second elastic section <NUM>, whereby the elastic unit <NUM> substantially has the form of an M-shaped structure or the elastic unit <NUM> substantially has the form of a waved structure (or has a system of third elastic section). This enhances the pressure resistant effect (or pushback force) of the elastic unit <NUM> (or the first elastic section <NUM>) and the tensile effect (or back pulling force) of the second elastic section <NUM>.

In this embodiment, the subsidiary bridge section <NUM> is also formed with a split <NUM> connected with the split <NUM> of the subsidiary arm 21b of the first elastic section <NUM> and the split <NUM> of the main arm 22a of the second elastic section <NUM>.

As shown in the drawings, the load arm <NUM> at least passes through the main arm 21a and the subsidiary arm 21b of the first elastic section <NUM> and the subsidiary bridge section <NUM> and the main arm 22a of the second elastic section <NUM>. Therefore, when the load arm <NUM> is (displaced) moved, in response to the (displacement) motion of the load arm <NUM>, the first elastic section <NUM> (and/or the subsidiary bridge section <NUM>) is compressed, while the second elastic section <NUM> is tensioned.

When the load arm <NUM> (and/or the subsidiary section 16a) is restored or moved back, the first elastic section <NUM> (and/or the subsidiary bridge section <NUM>) releases the stored energy to provide tension (or pushback force), while the second elastic section <NUM> releases the stored energy to provide pulling force (or back pulling force). This helps in storing the first portion <NUM> and/or the second portion <NUM> to their initial states (or home positions without being forced).

To speak more specifically, the main arm 21a of the first elastic section <NUM> is positioned between the shoulder sections 17a, 18a and the raised sections 17a, 18b, whereby the main arm 21a of the first elastic section <NUM> is leant against the shoulder sections 17a, 18a (or the main arm 21a of the first elastic section <NUM> is positioned between the first portion <NUM> (and/or the second portion <NUM>) and the raised sections 17b, 18b, whereby the main arm 21a of the first elastic section <NUM> is leant against the first portion <NUM> (and/or the second portion <NUM>). The subsidiary arm 21b of the first elastic section <NUM>, the subsidiary bridge section <NUM> and the main arm 22a of the second elastic section <NUM> are positioned between the raised sections 17b, 18b and the subsidiary section 16a, whereby the main arm 22a of the second elastic section <NUM> is leant against the subsidiary section 16a. The subsidiary arm 22b of the second elastic section <NUM> is positioned on the assembling section <NUM> (or the subsidiary arm 22b of the second elastic section <NUM> is secured to the case body <NUM> (or the assembling section of the case body <NUM>)).

Please refer to <FIG>. When an operator operates a tool <NUM> (such as a screwdriver) to pull the foot-like section <NUM> on the lower side of the case body <NUM> outward (or toward the left side of the drawing), the case body <NUM> will drive the first portion <NUM> of the conductive component to move toward the left side of the drawing. In cooperation with the first portion <NUM>, which moves to the position of the stop section <NUM>, some motions take place as follows:.

When the operation force disappears, the first elastic section <NUM> of the elastic unit <NUM> (and/or the subsidiary bridge section <NUM>) will release the previously stored energy due to compression, whereby the subsidiary arm 21b of the first elastic section <NUM> (and/or the subsidiary bridge section <NUM>) pushes back the subsidiary section 16a of the load arm <NUM> to move toward the right side of the drawing. Also, the second elastic section <NUM> will release the previously stored energy due to tension, whereby the main arm 22a of the second elastic section <NUM> pulls back the subsidiary section 16a of the load arm <NUM> to move toward the right side of the drawing to together help in elastically storing the first portion <NUM> (and/or the second portion <NUM>) to their initial positions as shown by the phantom line of <FIG>.

Please refer to <FIG>, which shows the structure of a modified embodiment of the elastic unit <NUM>. The subsidiary arm 22b (and/or the subsidiary arm 21b) of the second elastic section <NUM> (and/or the first elastic section <NUM>) is connected with a (bow-shaped) subsidiary bridge section <NUM>. The subsidiary bridge section <NUM> is connected with an extension arm 27a. The extension arm 27a is connected with a (bow-shaped) secondary bridge section 27c. The secondary bridge section 27c is connected with a secondary arm 27b, whereby the second elastic section <NUM> (and/or the first elastic section <NUM>) substantially has the form of an M-shaped structure or the elastic unit <NUM> substantially has the form of a waved structure to form a system of a third elastic section and a fourth elastic section).

As shown in the drawing, at least a part of the subsidiary arm 22b of the second elastic section <NUM>, the subsidiary bridge section <NUM>, the extension arm 27a and the secondary arm 27b are formed with a split <NUM>.

Please refer to <FIG> and <FIG>, which show the structures of the conductive component <NUM> and the elastic unit <NUM>. The load arm <NUM> (or the subsidiary section 16a) is connected with a tail section 16b extending from the subsidiary section 16a and positioned in the space <NUM>.

Please refer to <FIG>. The main arm 21a and the subsidiary arm 21b of the first elastic section <NUM> and the main arm 22a of the second elastic section <NUM> are positioned between the shoulder sections 17a, 18a and the subsidiary section 16a, whereby the main arm 21a of the first elastic section <NUM> is leant against the shoulder sections 17a, 18a (or the main arm 21a of the first elastic section <NUM> is leant against the first portion <NUM> (and/or the second portion <NUM>)) and the main arm 22a of the second elastic section <NUM> is leant against the subsidiary section 16a. Also, the tail section 16b of the load arm <NUM> is positioned in the split <NUM> of the subsidiary bridge section <NUM> of the second elastic section <NUM> and the secondary arm 27b is positioned on the assembling section <NUM> (or the secondary arm 27b is secured to the case body <NUM> (or the assembling section of the case body <NUM>)).

Accordingly, the load arm <NUM> at least passes through the main arm 21a and the subsidiary arm 21b of the first elastic section <NUM> and the main arm 22a of the second elastic section <NUM>. Therefore, when the load arm <NUM> is (displaced) moved, in response to the (displacement) motion of the load arm <NUM>, the first elastic section <NUM> is compressed, while the second elastic section <NUM> (and/or the subsidiary bridge section <NUM>, the extension arm 27a, the secondary bridge section 27c and the secondary arm 27b) is tensioned.

When the load arm <NUM> (and/or the subsidiary section 16a and the tail section 16b) is restored or moved back, the first elastic section <NUM> releases the stored energy to provide tension (or pushback force), while the second elastic section <NUM> (and/or the subsidiary bridge section <NUM> and the secondary bridge section 27c) releases the stored energy to provide pulling force (or back pulling force). This helps in storing the first portion <NUM> and/or the second portion <NUM> to their initial states (or home positions without being forced).

It should be noted that in the condition that the manufacturing cost is not taken into consideration, the first elastic section <NUM> and the second elastic section <NUM> of the elastic unit <NUM> respectively provide pressure resistant action force and tensile action force. According to such system, the structures of the first elastic section <NUM> and the second elastic section <NUM> can be alternatively selectively made of different metal material (property). For example, the first elastic section <NUM> can be selectively made of a high-performance material with higher resistance against pressure (yield point) and the second elastic section <NUM> can be selectively made of a high-performance material with higher tensile strength (yield point).

To speak representatively, in comparison with the conventional terminal device, the conductive component structure of the rail-type terminal device of the present invention has the following advantages:.

In conclusion, the conductive component structure of the rail-type terminal device of the present invention is effective and different from the conventional terminal device in space form and is advantageous over the conventional terminal device. The conductive component structure of the rail-type terminal device of the present invention is greatly advanced and inventive.

Claim 1:
A conductive component structure of rail-type terminal device, comprising
a conductive component (<NUM>) and an elastic unit (<NUM>),
the conductive component (<NUM>) having a base section (10a), a first section (<NUM>) and a second section (<NUM>) connected with the base section (10a) and extending to two lateral sides, the first section (<NUM>) and the second section (<NUM>) being respectively formed with a bow portion (<NUM>), a first portion (<NUM>) and a second portion (<NUM>) connected with the bow portion (<NUM>), wherein at least one of the first and second sections (<NUM>, <NUM>) defines a space (<NUM>) for receiving a load arm (<NUM>) and
the elastic unit (<NUM>) assembled with the load arm (<NUM>), the load arm (<NUM>) having a subsidiary section (16a), the elastic unit (<NUM>) including a first elastic section (<NUM>) and a second elastic section (<NUM>),
characterized in that
the load arm (<NUM>) passes through the first elastic section (<NUM>) and through only a part of the second elastic section (<NUM>), whereby when the load arm (<NUM>) is moved, in response to the motion of the load arm (<NUM>), the first elastic section (<NUM>) and the second elastic section (<NUM>) respectively provide tension effect and tensile effect.