JP2015026447A - Connector for flat cable - Google Patents

Abstract

To improve workability of detaching a flat cable from a connector with a simple structure. A housing 4 having a plurality of terminals 3 through which a plurality of conductors of a flat cable 2 are brought into contact with each other, and a lock member which is assembled to the housing and which positions and holds a distal end portion 21 of the flat cable inserted into the housing. 5 and a holding member 6 fixed to both ends of the housing terminals in the arrangement direction and assembling the lock member on the housing side. The housing has an insertion portion 7 into which the tip of the flat cable is inserted. The projection portion 54 extends in a hook shape toward the front side in the direction of inserting the flat cable into the insertion portion. [Selection] Figure 1

Description

  The present invention relates to a cable formed by sandwiching a plurality of conductor patterns on a flexible insulating film, or a ribbon-shaped cable (hereinafter referred to as a flat cable) in which a plurality of flexible flat-plate conductors are arranged side by side. Is generally related to a connector for a flat cable used for connecting to an electronic component.

  For example, Patent Document 1 discloses a configuration example of such a flat cable connector. Such a connector has a housing in which a plurality of contacts connected to a wiring board of an electronic component are arranged in the longitudinal direction, and a flat cable is inserted into the housing through an insertion portion formed in the housing, and the contacts To come into contact. The flat cable inserted into the housing has a locking hole, and the flat cable is not intended from the connector by locking the locking hole with a locking portion (locking protrusion) provided in the housing. To prevent you from leaving.

  On the other hand, when the flat cable is intentionally detached from the connector, the lock release portion provided in the housing is pressed corresponding to the lock portion. Specifically, by applying a pressing force in the direction toward the inside of the housing to one end portion of the lock release portion, the lock portion that engages with the other end portion of the lock release portion is pressed, and the lock portion is elastically deformed to be flat. The locking of the cable with respect to the locking hole is released.

JP 2011-119162 A

  However, in the connector disclosed in Patent Document 1, one mounting bracket for mounting the contact to the wiring board is provided at each end of the contact arrangement direction, and the lock portion and the lock release portion are provided on the mounting bracket. Each is provided. That is, since the lock portion and the lock release portion are independent at both ends of the connector, the flat cable is used unless the lock release portions at both ends are pressed simultaneously to release the lock between the lock portions and the lock holes. Cannot be detached from the connector. For this reason, the work of detaching the flat cable from the connector is complicated, and it is required to improve the workability (detachability).

  The present invention has been made based on this, and the problem to be solved is to improve the workability of detaching the flat cable from the connector with a simple structure.

  In order to solve the above-described problems, a flat cable connector according to the present invention includes a housing on which a plurality of terminals to which a plurality of conductors of a flat cable are brought into contact with each other, a housing mounted on the housing, and the housing is inserted into the housing. A locking member for positioning and holding the tip of the flat cable; and a pressing member fixed to both ends of the housing in the arrangement direction of the terminals, and the locking member is assembled to the housing. The housing includes the flat cable. The locking member has a protrusion extending in a hook shape toward the front side in the direction of inserting the flat cable into the insertion portion.

  According to this, when the flat cable is lifted upward to be detached from the insertion portion of the housing, the protrusion is brought into contact with the lifted flat cable and pushed up, and the protrusion is lifted from the housing along with the flat cable. Can do. As a result, for example, it is possible to lift the locking portion engaged with the locking hole of the flat cable together with the protruding portion to release these engagements. Therefore, by simply lifting the flat cable without using a separate jig, the locking of the lock member and the flat cable can be released and the flat cable can be easily detached from the connector.

  In this case, the pressing member can be formed having a spring portion that presses the locking member toward the housing. Thereby, the force (pressing force) by which the spring portion is elastically bent and returned and deformed can be applied to the lock member, and the lock member can be easily assembled to the housing by pressing the lock member toward the housing with the pressing force. Is possible.

  When the flat cable is attached to the housing, the reinforcing portion attached to the flat cable is positioned below the protruding portion of the lock member, and the flat cable is removed when the flat cable is detached from the housing. It can also be configured such that the reinforcing member abuts against the protruding portion and lifts the locking member by an acting force applied to the cable. Accordingly, when the flat cable is lifted upward so as to be intentionally detached from the insertion portion of the housing, the reinforcing portion can be brought into contact with the protruding portion of the lock member. For this reason, the load which arises in a flat cable at the time of lifting of a locking member can be reduced, without making a flat cable contact directly with a protrusion part, and it becomes possible to aim at protection of a flat cable.

  According to the present invention, it is possible to improve the detachability of the flat cable from the connector with a simple structure.

It is a perspective view which shows the structure of the connector for flat cables which concerns on one Embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the connector shown in FIG. 1 for every structural member. It is a perspective view which shows the structure of a locking member. It is a perspective view which shows the structure of a pressing member. It is a figure which shows the longitudinal cross-section of the connector in arrow A11 part of FIG. 1 from an arrow direction, Comprising: (a) is a figure which shows the state (state before insertion) before inserting a flat cable in a housing, (b) is a flat cable. The figure which shows the state (In-insertion state) which has inserted in the housing, (c) is a figure which shows the state (insertion state) after inserting a flat cable in a housing. It is a figure which shows the longitudinal cross-section of the connector in arrow A12 part of FIG. 1 from an arrow direction, Comprising: (a) is a state before insertion, (b) is a state during insertion, (c) is a figure which shows a state after insertion, respectively. . FIG. 2 is a diagram showing a bending state of a flat cable when a normal external force is applied in a state in which the flat cable is routed, in a vertical cross section at a portion indicated by an arrow A11 in FIG. 1, wherein (a) shows a normal external force applied upward. (B) is a figure which shows a bending aspect when an external force is normally applied below. It is a figure which shows the longitudinal cross-section of the connector in the arrow A11 part of FIG. 1 from an arrow direction, Comprising: (a) is a figure which shows the state (lifting state) which lifted the flat cable, (b) is a flat cable, a locking member, The figure which shows the state (unlocking state) which cancelled | released (1), (c) is a figure which shows the state (detaching state) which has made the flat cable detach | leave from a housing. It is a figure which shows the longitudinal cross-section of the connector in the arrow A12 part of FIG. 1 from an arrow direction, Comprising: (a) is a lifting state, (b) is an unlocking state, (c) is a figure which shows a disengaged state, respectively. is there.

  Hereinafter, a flat cable connector of the present invention (hereinafter, simply referred to as a connector as appropriate) will be described with reference to the accompanying drawings. A connector according to the present invention is a component for electrically connecting a flat cable to an external terminal (for example, a contact on a circuit board of an electronic component) by detachably contacting a terminal mounted on the connector. .

  FIG. 1 shows the configuration of a flat cable connector 1 according to an embodiment of the present invention, and FIG. 2 shows the connector 1 of FIG. In the following description, the arrow X direction (corresponding to the width direction of the flat cable 2) shown in FIG. 1 is the left-right direction, the arrow Y direction (corresponding to the extending direction of the flat cable 2) is the front-rear direction, and the arrow Z direction (flat cable) 2 is equivalent to the thickness direction). In addition, about the up-down direction, the arrow Z1 direction in FIG. 1 is specified as upward (upper side), and the arrow Z2 direction is specified as downward (downward). However, the left-right direction, the front-rear direction, and the up-down direction may not necessarily coincide with the respective directions when the flat cable 2 is actually connected to the external terminal via the connector 1.

  As shown in FIGS. 1 and 2, the connector 1 includes a housing 4 on which a plurality of terminals 3 to which a plurality of conductors of a flat cable 2 are brought into contact with each other and a housing 4 mounted thereon, and is inserted into the housing 4. The locking member 5 that positions and holds the distal end portion 21 of the flat cable 2 and a pair of pressing members 6 that are fixed to both end portions of the housing 4 in the arrangement direction of the terminals 3 and that assemble the locking member 5 to the housing 4 side. ing.

  The flat cable 2 is configured by sandwiching a plurality of conductors between a pair of covering portions. The conductor is made of, for example, a rectangular or foil-like conductive material, and a plurality of such conductive materials are arranged in parallel in the left-right direction to constitute one flat cable 2. The covering portion is formed of an insulating material (resin insulating film or the like) in a band shape, and is integrated so as to sandwich a plurality of conductors from the upper side and the lower side in the front-rear direction. The flat cable 2 is connected to an external terminal (not shown) via a terminal 3 of the connector 1 by a tip portion 21, and the tip portion 21 partially covers a covering portion (for example, a lower covering portion). It peels and the front-end | tip part of a conductor is exposed outside. Further, the flat cable 2 is provided with a thin plate-like reinforcing portion 22 having flexibility (elastic deformation force) over the entire width of the tip portion 21 (opposite side of the exposed portion of the conductor (upper side as an example)). ing. For example, the reinforcing portion 22 can be provided to the flat cable 2 by fixing an insulating resin plate to the upper covering portion of the tip portion 21 by bonding or the like (attached as an example). Thereby, the front-end | tip part 21 is reinforced and the improvement and protection of durability are aimed at. In particular, in the present embodiment, the flat cable 2 is lifted upward so as to be intentionally detached from the insertion portion 7 of the housing 4 and reinforces protection of the distal end portion 21 when coming into contact with a protruding portion 54 of the lock member 5 described later. Part 22 is responsible. Note that the length of the reinforcing portion 22 in the front-rear direction is such that one end portion 22a is longer than the connector 71 in the front-rear direction with respect to the front-rear direction of the insertion portion 7 when the flat cable 2 is in contact with the terminal 3 of the connector 1. The intermediate portion 22b may be set so as to be positioned inward of the connector with respect to the front-rear direction rather than the front opening 71.

  Further, the flat cable 2 is set so that the full width of the covering portion is set larger than the full width (dimension in the left-right direction) of the conductor portion, and the portion composed of only the covering portion on both sides in the left-right direction of the conductor portion ( Hereinafter, it is referred to as a covering end portion 23). The flat cable 2 is formed with a pair of openings (hereinafter referred to as locking holes) 24 at both ends in the left-right direction and in the vicinity of the distal end portion 21. These locking holes 24 are pierced through the reinforcing portion 22 and the covering end portion 23 in the vertical direction so as to be engageable with a lock member 5 (locking portion 52) of the connector 1 described later. FIG. 1 shows, as an example, the configuration of the locking hole 24 having a rectangular shape whose longitudinal direction is long with respect to the left-right direction, but the configuration (shape, size, arrangement, number, etc.) of the locking hole 24 is locked. As long as it can be engaged with the member 5 (locking part 52), you may set arbitrarily.

  A terminal (hereinafter referred to as a connector terminal) 3 has a plurality of rod-shaped contacts 3a formed by bending a conductive rod-shaped conductor and extending the bent portions so as to face each other at predetermined intervals (for example, at equal intervals). It is configured to be connected side by side in the direction. The pair of bent portions of each rod-shaped contact 3a are opposed to each other with an interval (slightly larger than the thickness of the tip portion 21) at which the tip portion 21 of the flat cable 2 can be inserted. Thereby, the flat cable 2 and an external terminal come to be electrically connected via the connector terminal 3 by making the front-end | tip part 21 inserted between the bending parts which oppose contact with each rod-shaped contact 3a. ing.

  The housing 4 is formed to have a longitudinal direction along the terminal arrangement direction (left-right direction) of the connector terminals 3, and a space for accommodating the connector terminals 3 by the upper walls 4b supported at both ends of the bottom wall 4a in the longitudinal direction. Is formed. The upper wall 4b has a thin overhanging wall 4c formed so as to protrude along the longitudinal direction, and both ends of the overhanging wall 4c are free ends. The bottom wall 4a, the top wall 4b, and the overhanging wall 4c form an accommodation space in which the connector terminal 3 is mounted by press fitting or the like, and the connector terminal 3 is from the back side of the housing 4 (the back side in the flat cable insertion direction). It is designed to be installed in the accommodation space. The connector terminal 3 is provided with an external connection end 3b on the back side (the bent side of the rod-shaped contact 3a), and the external connection end 3b is externally connected by soldering or the like (for example, a contact on a circuit board of an electronic component). It is designed to be connected electrically.

  The housing 4 is formed with an insertion portion 7 into which the conductor of the distal end portion 21 of the flat cable 2 is inserted (inserted) into a space in which the connector terminal 3 is accommodated. The insertion portion 7 is open to the outside on one side in the front-rear direction via the opening 71 so that the connector terminal 3 can be exposed to the outside from the opening 71. The front opening 71 has a width (dimension in the left-right direction) substantially the same as the entire width of the flat cable 2 and a height (interval in the vertical direction from the bottom wall 4a to the lock member 5 (protrusion 54)). It is sufficiently wider than the wall thickness of the tip portion 21) provided with the reinforcing portion 22, and functions as an insertion port (detachment port) for the flat cable 2 to the housing 4. At both ends in the left-right direction of the frontage 71, one guide portion 41 projects from the bottom wall 4a upward. These guide portions 41 are formed in a taper shape that widens the distance in the left-right direction (corresponding to the width of the frontage 71) toward the outside of the connector. Accordingly, the pair of guide portions 41 smoothly inserts the flat cable 2 into the front opening 71 and guides the flat cable 2 from the left and right directions to stabilize the insertion posture of the flat cable 2.

  FIG. 3 is a perspective view showing the configuration of the lock member 5. As shown in FIG. 3, the lock member 5 is formed to include a bridging portion 5 a made of a plate material having a length along the longitudinal direction of the housing 4 and fixing portions 5 b at both ends, and is formed on the upper surface of the overhanging wall 4 c of the housing 4. The flat cable 2 is positioned and fixed to the housing 4 by being arranged. The lock member 5 has assembly parts 51 for assembling to the housing 4 in a state of being arranged on the upper surface of the overhanging wall 4 c below the left and right ends, and the assembly spring pieces 51 a of the assembly part 51 are provided. It is assembled to the housing 4 by engaging with an assembly spring piece 4 d (see FIG. 2) provided on the housing 4.

  The locking member 5 has a pair of locking portions 52 that are respectively engaged with locking holes 24 formed on both sides of the distal end portion 21 of the flat cable 2. The locking portions 52 are provided so as to protrude downward at both ends in the left-right direction corresponding to the pair of locking holes 24. In this case, the locking portion 52 is formed so that the thickness in the front-rear direction gradually becomes thinner as it goes in the flat cable insertion direction, and has a tapered surface 52a that is tapered downward. When the flat cable 2 is inserted into the insertion portion 7 of the housing 4 until the distal end portion 21 comes into contact with the connector terminal 3, the locking portion 52 engages with the locking hole 24, and the flat cable 2 is inserted into the housing 4. Lock against.

  In this embodiment, the lock member 5 has a protruding portion (hereinafter referred to as a collar portion) 54 that extends in a hook shape toward the front side in the flat cable insertion direction into the insertion portion 7. The flange portion 54 is positioned between the pair of presser members 6 and has one end side in the front-rear direction of the lock member 5 (flat cable insertion) so as to cover the upper portion 71 with a narrower width (dimension in the left-right direction) than the front opening 71. It protrudes from the front side of the direction. The protruding end portion 54 a of the collar portion 54 is positioned inward of the connector with respect to the front-rear direction with respect to the front opening 71. The collar portion 54 is in a state in which the locking portion 52 is engaged with the locking hole 24 and is inserted into the insertion portion 7 of the housing 4 without bending (in other words, the distal end portion 21 is connected to the connector terminal 3. The flat cable 2 and the lower surface 54b are in a thickness (vertical dimension) that can maintain a non-contact state at a predetermined interval. On the other hand, when the flat cable 2 is lifted upward so as to be intentionally detached from the insertion portion 7 of the housing 4, the collar portion 54 contacts the lifted flat cable 2 (specifically, the reinforcing portion 22) and the lower surface 54b. The flat cable 2 is pushed up and lifted from the housing 4. At that time, it is lifted together with the locking portion 52 and the flange portion 54 engaged with the locking hole 24, and the engagement with the locking hole 24 is released to release the locking between the lock member 5 and the flat cable 2. Is possible. In addition, the lower surface 54b of the collar portion 54 is formed so that the collar portion 54 gradually becomes thinner in the vertical direction from the base end portion toward the projecting end portion 54a (the height of the frontage 71 is increased by another method). It is formed in the shape of a taper that is slanted. Further, the protruding end portion 54a and the lower surface 54b are continuous in a convex curve shape (so-called R shape). Thereby, the load which arises in the flat cable 2 when the lower surface 54b and the reinforcement part 22 contact can be reduced.

  FIG. 4 is a perspective view showing the configuration of the pressing member 6. As shown in FIG. 4, the pressing member 6 is a member obtained by bending a member having elasticity, such as a metal material, and includes a vertical portion 63 erected from one end of a horizontal support portion 62 and a vertical portion. A spring portion 61 having a spring property (flexibility) provided extending in the horizontal direction from the upper end of 63 is formed. The spring portion 61 has a so-called cantilever spring shape and is configured to be elastically deformable starting from a continuous portion with the vertical portion 63. The lock member 5 disposed on the upper surface of the overhanging wall 4c is disposed on the housing side (downward). The lock member 5 is assembled to the housing 4 by pressing against the housing 4. The support portion 62 has a flat shape that comes into surface contact with the circuit board of the electronic component to which the connector 1 is connected. For example, the support terminal 62 is joined and fixed to the circuit board by soldering or the like to connect the connector terminal 3 to external terminals (contact points on the circuit board, etc. ).

  The pressing member 6 press-fits the vertical portion 63 into the groove portion 43 of the housing 4, and the support portion 62 is fixed to the circuit board in a state where the spring portion 61 is elastically deformed and accommodated in the concave portion 53 of the lock member 5. . Thereby, the force by which the spring portion 61 is elastically bent and returned and deformed can be applied to the groove bottom of the recess 53. And the pressing member 6 is a locking member by pressing down the groove bottom of the recessed part 53 (if it grasps another way, the assembly part 51 and the latching part 52) with the force which acts from this spring part 61. 5 is assembled to the housing 4 (the upper surface of the overhanging wall 4c). The groove portion 43 is formed by cutting out both end surfaces in the left-right direction of the housing 4 corresponding to the form of the vertical portion 63, and the recessed portion 53 is formed by the fixing portion 5 b (set) of the lock member 5 corresponding to the form of the spring portion 61. The upper part of the attaching part 51 and the locking part 52 is recessed downward and formed at both ends in the left-right direction.

  Here, in the present embodiment, when the flat cable 2 and the external terminal are connected and disconnected, the insertion procedure of the flat cable 2 into the connector 1 (specifically, the insertion portion 7 of the housing 4) and the connector 1 Each withdrawal procedure will be described.

  FIG. 5 shows a longitudinal section of the connector 1 in the arrow A11 portion of FIG. 1 from the direction of the arrow. FIG. 5A shows a state before the flat cable 2 is inserted into the housing 4 (hereinafter referred to as a pre-insertion state). The figure which shows, (b) is a figure which shows the state (henceforth an insertion state) which has inserted the flat cable 2 in the housing 4, (c) is the state after inserting the flat cable 2 in the housing 4 (henceforth) Is a state after insertion). FIG. 6 shows a longitudinal section of the connector 1 in the direction of the arrow A12 in FIG. 1 from the direction of the arrow. (A) is a state before insertion, (b) is a state during insertion, and (c) is a state after insertion. FIG.

  When the flat cable 2 is inserted into the housing 4, the flat cable 2 is positioned with respect to the housing 4 with the distal end portion 21 facing the front opening 71 and the reinforcing portion 22 facing upward, and FIGS. As shown to (a), the front-end | tip vicinity of the front-end | tip part 21 is mounted on the bottom wall 4a (pre-insertion state).

  Next, while the flat cable 2 is guided by the guide portion 41 from the state before insertion, the flat wall 2 is slid on the bottom wall 4a and inserted (inserted) into the insertion portion 7 from the front opening 71, and the distal end portion of the distal end portion 21 is locked. 52 is brought into contact with the tapered surface 52a. When the flat cable 2 is further inserted into the insertion portion 7 from this state, the distal end portion 21 pushes the locking portion 52 upward along the tapered surface 52a against the pressing force of the spring portion 61 pressing the locking portion 52. Then, the spring portion 61 is elastically bent and deformed upward via the pushed-up locking portion 52. As a result, as shown in FIGS. 5B and 6B, the flat cable 2 pushes the locking portion 52 upward, and the pushed locking portion 52 is moved to the upper side (reinforcing portion 22) of the distal end portion 21. While being in contact, it enters the depth of the insertion portion 7 (in the insertion state).

  Then, when the flat cable 2 is further inserted into the insertion portion 7 from the insertion state until the distal end portion 21 comes into contact with the connector terminal 3 (rod contact 3a), the locking portion 52 pushed upward is locked. While falling into the hole 24, it falls into the receiving hole 42 of the locking portion 52 formed in the housing 4. At that time, as shown in FIG. 5C and FIG. 6C, the spring portion 61 is elastically deflected and deformed to press the locking portion 52 downward, so that the locking portion 52 and the locking hole 24 The engaged state is maintained (post-insertion state).

  Thereby, the flat cable 2 can be electrically connected to the external terminal by bringing the flat cable 2 into contact with the connector terminal 3 while preventing the flat cable 2 from being detached from the connector 1 (the insertion portion 7 of the housing 4). When the flat cable 2 is attached to the housing 4 (after insertion), the reinforcing portion 22 attached to the flat cable 2 is positioned below the flange portion 54 of the lock member 5 and faces the lower surface 54b. It has become a state.

  In addition, in the state after insertion where the flat cable 2 is electrically connected to the external terminal (that is, the flat cable routing state), the force that bends the flat cable 2 in the vertical direction, in other words, from the connector 1 to the flat cable 2 at normal time. May be applied to the flat cable 2 (hereinafter, referred to as normal external force F1). FIG. 7 shows a bending mode of the flat cable 2 when the normal external force F1 is applied in the flat cable wiring state. When the normal external force F1 is applied upward as shown in FIG. 7A, the flat cable 2 is moved upward with the one end portion 22a in the front-rear direction of the reinforcing portion 22 (the front end portion in the flat cable insertion direction) as a fulcrum. It will be in a bent state. On the other hand, as shown in FIG. 7B, when the normal external force F1 is applied downward, the flat cable 2 is bent downward with the one end 22a of the reinforcing portion 22 as a fulcrum. In the present embodiment, the one end portion 22a of the reinforcing portion 22 is positioned so as to be exposed to the outside of the connector with respect to the front-rear direction with respect to the front opening 71 of the insertion portion 7, so that the normal external force F1 acts either upward or downward. Even if it is a case where it is done, it can suppress that the bent flat cable 2 contacts the collar part 54. FIG. Therefore, the collar portion 54 is prevented from being lifted from the housing 4 so as to be pushed up by the bent flat cable 2, the engagement between the locking portion 52 and the locking hole 24 is released, and the locking member 5 and the flat cable 2 are It is possible to effectively avoid the release of the lock. As a result, it is possible to prevent the flat cable 2 from being unintentionally detached from the housing 4 even when the normal external force F1 is applied.

  On the other hand, when the flat cable 2 is intentionally detached from the housing 4, the reinforcing portion 22 comes into contact with the flange portion 54 due to an acting force applied to the flat cable 2 (normally an upward force larger than the external force F1). Then, the lock member 5 is lifted. Thereby, the engagement between the locking portion 52 and the locking hole 24 is released, and the locking between the lock member 5 and the flat cable 2 is released. The details of the withdrawal procedure will be described with reference to FIG. FIG. 8 shows a longitudinal section of the connector 1 in the arrow A11 portion of FIG. 1 from the direction of the arrow, and (a) is a diagram showing a state where the flat cable 2 is lifted (hereinafter referred to as a lifted state). ) Is a diagram showing a state in which the flat cable 2 and the lock member 5 are unlocked (hereinafter referred to as “unlocked state”), and (c) is a state in which the flat cable 2 is detached from the housing 4 (hereinafter, referred to as “unlocked state”). FIG. 5 is a diagram showing a state of being detached. 9 shows a longitudinal section of the connector 1 in the arrow A12 portion of FIG. 1 from the direction of the arrow, where (a) is in the lifted state, (b) is in the unlocked state, and (c) is in the detached state. FIG.

  When the flat cable 2 is detached from the housing 4, a force larger than the normal external force F <b> 1 (hereinafter referred to as a reinforcing portion bending force F <b> 2) is applied upward to the flat cable 2, and the flat cable 2 is subjected to normal external force action. Bend it up more and lift it up. When the reinforcing portion bending force F2 is applied to the flat cable 2 upward, the reinforcing portion bending force F2 is applied to the reinforcing portion 22 from below and is flat as shown in FIGS. 8 (a) and 9 (a). The cable 2 is bent upward with the intermediate portion 22b of the reinforcing portion 22 as a fulcrum (lifted state). In such a lifted state, the intermediate portion 22b of the reinforcing portion 22 is inward of the connector with respect to the front-rear direction with respect to the front opening 71, specifically, the rear side in the flat cable insertion direction with respect to the protruding end portion 54a of the collar portion 54. Therefore, the bent flat cable 2 (specifically, the reinforcing portion 22) can come into contact with the lower surface 54b of the flange portion 54.

  Next, when a force larger than the reinforcing portion bending force F <b> 2 (hereinafter referred to as a detachment force F <b> 3) is applied to the flat cable 2 from the lifted state, the flat cable 2 pushes the spring portion 61 that presses the lock member 5. The collar portion 54 is pushed up against the pressure, and at the same time, the locking portion 52 is pushed up. Accordingly, as shown in FIGS. 8B and 9B, the engagement between the locking portion 52 and the locking hole 24 is released and the locking between the lock member 5 and the flat cable 2 is released (see FIG. 8B and FIG. 9B). Unlocked state). In this embodiment, the lower surface of the overhanging wall 4c has a tapered surface 40c that is inclined so as to increase the distance from the bottom wall 4a toward the overhanging end (the detaching direction of the flat cable 2 (opposite to the insertion direction)). Have. The taper surface 40c is larger than an inclination angle (angle formed between the bottom wall 4a) θ1 when the distal end portion 21 (reinforcing portion 22) of the flat cable 2 lifted by the separation force F3 comes into contact with the flange portion 54. Inclined at an angle θ2 (θ1 <θ2). For this reason, the front-end | tip part 21 (reinforcement part 22) of the flat cable 2 in a latch release state contacts the collar part 54, but does not contact the protruding wall 4c of the housing 4. Therefore, it is possible to easily push up the collar portion 54 with the flat cable 2. When the detachment force F3 is applied upward to the flat cable 2 and the collar part 54 is pushed upward, the reinforcing part 22 comes into contact with the collar part 54, so that the flat cable 2 is in direct contact with the collar part 54. There is nothing to do. Therefore, the load generated on the flat cable 2 when the collar portion 54 is pushed up can be reduced, so that the flat cable 2 can be protected.

  When the flat cable 2 is pulled from the unlocked state, the flat cable 2 retracts from the insertion portion 7 while bringing the locking portion 52 pushed upward upward into contact with the upper side (reinforcing portion 22) of the distal end portion 21. Go. When the flat cable 2 is further pulled as it is, as shown in FIGS. 8C and 9C, the distal end portion 21 and the locking portion 52 are not in contact with each other, and the flat cable 2 can be easily detached from the housing 4. Is possible (withdrawal state). In the disengaged state, the spring portion 61 is elastically bent and restored and presses the locking portion 52 downward, and the locking portion 52 falls into the locking hole 24 and falls into the receiving hole 42 (see FIG. 5 (a) and the state before insertion shown in FIG. 6 (a)). Further, in a state of being detached, the reinforcing portion 22 is elastically bent and restored and the bent flat cable 2 returns to a flat state before bending.

  As described above, according to the connector 1 according to the present embodiment, the flat cable 2 can be easily released by releasing the locking between the lock member 5 and the flat cable 2 only by lifting the flat cable 2 without using a separate jig. The connector 1 can be detached from the connector 1. That is, since the flat cable 2 can be detached from the connector 1 with a simple structure, workability can be improved.

  The present invention has been described based on the embodiment shown in FIGS. 1 to 9. However, the embodiment described above is merely an example of the present invention, and the present invention is only the configuration of the embodiment described above. It is not limited to. Therefore, it is obvious to those skilled in the art that the present invention can be implemented in a form modified or changed within the scope of the gist of the present invention. It goes without saying that it belongs to the claims.

2 Flat cable 3 Terminal (connector terminal)
4 Housing 5 Locking member 6 Holding member 7 Insertion part 21 Tip part 54 Projection part (collar part)

Claims (3)

A housing in which a plurality of terminals to which a plurality of conductors of a flat cable are brought into contact with each other are mounted;
A locking member assembled to the housing and positioning and holding a tip of the flat cable inserted into the housing;
The holding member is fixed to both ends of the housing in the arrangement direction of the terminal, and the locking member is assembled to the housing side,
The housing has an insertion part into which the tip of the flat cable is inserted,
The flat cable connector is characterized in that the lock member has a protruding portion extending like a hook toward the front side of the flat cable insertion direction into the insertion portion.   The flat cable connector according to claim 1, wherein the pressing member includes a spring portion that presses the lock member toward the housing. With the flat cable attached to the housing,
The reinforcing portion attached to the flat cable is located below the protruding portion of the lock member,
When detaching the flat cable from the housing,
2. The flat cable connector according to claim 1, wherein the reinforcing portion abuts on the protruding portion and lifts the lock member by an acting force applied to the flat cable.

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