JP4615484B2 - Unlocking structure with straps for automobile seats - Google Patents

Description

  The present invention relates to an unlocking structure using a strap for an automobile seat that releases the lock by pulling a strap connected to a lock mechanism inside the lock of the automobile seat.

  The car seat shown in FIG. 3 has a leg on the bottom left and right of the seat cushion SC (third seat), and the leg is locked to the vehicle floor F by a lock mechanism, and the lock by the lock mechanism is provided on the leg side. The leg is released by pulling 1 and the leg can be removed from the vehicle floor F together with the seat cushion SC and the seat back SB.

  As shown in FIG. 4, the above strap 1 is exposed at its distal end 1A from the outlet 2 'provided in the resin cover member C covering the leg, and the base end is connected to the lock mechanism. .

  By the way, as shown in FIG. 4, the outlet 2 'is a long hole opened in a reverse U-shape on the rear end surface of the cover member C. The left and right insertion portions 2A, 2B, and both the insertion portions 2A The left and right cloth members 10 and 11 constituting the distal end portion 1A of the strap 1 that is folded back to the insertion portions 2A and 2B are inserted.

  The strap 1 is attached from the back of the third seat so that the strap 1 can be pulled out smoothly and unlocked by the locking mechanism by pulling in the horizontal direction, which is the direction of FIG. 4F1.

  As shown in FIG. 5, the above-described outlets 2 'are notched so that the groove widths W1 of the insertion portions 2A, 2B and the bent portion 2C' are all the same.

  However, if the user accidentally pulls the tip 1A of the strap 1 obliquely upward in the F2 direction shown in FIG. 4 to release the lock, the left and right insertion parts 2A and 2B are inserted as shown in FIG. The strap 1 to be moved moves in the direction of the bent portion 2C ′ of the outlet 2 ′ by the pulling force, and the upper portion 10A of one cloth member 10 of the strap 1 is moved to the upper portion of the bent portion 2C ′ of the other cloth member 11. The upper portion 11A may be folded in two in the bent portion 2C ′ and may enter the upper portion 10A of one fabric member 10 in the bent portion 2C ′.

  Further, if the tip 1A of the strap 1 is pulled by mistake in the oblique lateral direction, both upper portions 10A, 11A of the cloth members 10, 11 are folded in two as shown in FIG. 7, and the other 11A is below the other 10A. May get in.

  Thus, since the groove width W1 of each insertion part 2A, 2B of the outlet 2 'is formed to be the same as the groove width W1 of the bent part 2C', the left and right cloths of the strap 1 are formed on the bent part 2C '. In some cases, the upper portions of the members 10 and 11 overlap each other.

  When the straps 1 overlap in this way and the thickness thereof becomes larger than the groove width W1 of the bent portion 2C ′, the pulled-out strap 1 is temporarily inserted into the insertion portions 2A, 2B from the bent portion 2C ′ of the outlet 2 ′. Then, after the overlap is eliminated, the strap 1 has to be pulled out again, and there is a problem that the operation takes time.

  JP-A-2005-125915, for example, discloses a technique for releasing a lock by lifting a strap upward.

JP 2005-125915 A

  As described above, when the strap inserted through the outlet 2 opened in an inverted U-shape is pulled obliquely upward or the like for unlocking operation, the leading end of the strap 1 folded to the bent portion 2C ′ of the outlet 2 The upper parts 10A and 10B of the cloth members 10 and 11 constituting 1A may overlap each other.

  Then, an object of this invention is to prevent the overlap at the time of the extraction | drawer of the strap penetrated to the extraction opening which consists of a reverse U-shaped long hole.

  In order to achieve the above object, the present invention is characterized in that the lower lip constituting the bent portion is formed in a tapered shape facing upward.

  Furthermore, the gap between the top of the lower edge of the bent portion and the upper edge of the bent portion is formed wider than the groove width of the insertion portion.

  Further, it is preferable that the upper edge of the bent portion is formed in an arc shape.

  And it is preferable to sew a strap piece integrally to the inside of the front end portion of the strap.

According to the first aspect of the present invention, since the lower lip of the bent portion at the outlet is formed in an upwardly tapered shape, there are enlarged space portions on the outer left and right sides of the lower rim.
Therefore, when the strap is pulled in the oblique direction, even if the upper part of the strap inserted into the left and right insertion portions moves into the bent portion, it does not overlap.

  Further, since the strap moves along the tapered lower lip, the straps slide well and do not overlap.

  According to the second aspect of the present invention, since the space portion in the bent portion is further expanded, the strap inserted through the left and right insertion portions does not bend and overlap due to the tensile force when pulled obliquely upward. Therefore, the overlapping of straps can be prevented.

  According to the invention of claim 3, the upper edge of the bent portion is formed in an arc shape. Therefore, when the upper part of the strap that passes through the left and right insertion parts moves upward, the upper end of the strap moves along the upper edge of the bent part, and does not hit the upper edge of the outlet, Do not overlap.

  According to the present invention of claim 4, since the groove width of the bent portion of the outlet is wide, there is a possibility that the exposed tip end of the strap may move to one side and be drawn into the inside of the bent portion. The rigidity and the like are improved by sewing the strap piece. Therefore, the tip of the strap is not pulled into the inside from the bent portion of the outlet. Also, the tip of the strap can be made thicker, and if it is thicker than the groove width of the lead-out portion, the strap is less likely to be pulled inside than the bent portion.

  Further, by using a member, material, and weaving that is excellent in sliding performance for the strap piece, the operation of pulling out the strap from the outlet and returning it into the outlet becomes smooth.

An embodiment of the present invention will be described below with reference to FIGS.
The outlet 2 is opened in an inverted U shape on the rear end surface of the cover member C as in the conventional case, and the groove width W1 of the left and right insertion portions 2A, 2B is formed the same as that of the conventional product.

  That is, when the thickness of the cloth members 10 and 11 of the straps inserted through the insertion portions 2A and 2B is about 0.8 mm, the groove width W1 is preferably about 2.3 mm.

  However, the groove width W2 of the bent portion 2C communicating between the upper portions of the left and right insertion portions 2A, 2B is preferably wider than the insertion portions 2A, 2B, for example, about 3.5 mm. In the figure, reference numeral 20 denotes an enlarged space portion of the bent portion 2C formed by increasing the groove width W2.

  The above-described bent portion 2C that communicates between the upper portions of the left and right insertion portions 2A and 2B is formed in a taper shape having a lower lip 203 facing upward. Thereby, the enlarged space part 20 is formed on the outer left and right sides of the bent part 2C, and the space part 20 is formed so as to become narrower toward the tip part 203A which is the top part of the bent part 2C.

  In the illustrated example, the tip end 203A of the lower lip 203 and the groove width W2 to the upper lip 201 are formed wider than the groove width W1 of the insertion portions 2A and 2B (for example, 3.5 mm). degree).

  However, the groove width W2 may be formed to be the same as the groove width W1 of the insertion portions 2A and 2B, but from the left and right base ends 203B and 203B in the lower edge 203 of the bent portion 2C, the upper edge 201 above it. It is desirable that the groove width W3 is wide with respect to the insertion portions 2A and 2B.

  The strap 1 is the same as the conventional product and has a folded portion at the distal end portion 1A. The distal end portion 1A serves as an operation portion, and the proximal end is connected to a lock mechanism.

  In addition, the inner surface side of the strap 1 is subjected to processing for improving slipping with respect to the inner hole edges 202 and 202 of the insertion portions 2A and 2B and the lower edge of the bent portion 2C.

  Therefore, even if the interval W2 between the top portion 203A of the lower lip 203 and the upper lip 201 in the bent portion 2C of the outlet 2 is the same as the groove width W1 of the insertion portions 2A and 2B, the lower portion of the bent portion 2C. Since the lip 203 is formed in a mountain shape, the interval W3 between the base ends 203B and 203B of the lower lip 203 in the vertical direction and the upper lip 201 is wider than the groove width W1, and the lower portion The space | interval (space part) of the left-right direction of the lip | edge 203 is also wide.

  Therefore, when the leading end of the strap 1 is accidentally pulled upward in order to release the lock, the upper ends of the cloth members 10 and 11 of the strap 1 that are inserted into the insertion portions 2A and 2B are in the bent portion 2C. Although it moves, the front-end | tip part of each fabric member 10 and 11 is not twisted mutually so that it may overlap.

When the strap 1 is pulled obliquely upward, the upper ends of the cloth members 10 and 11 constituting the strap 1 are along the tapered lower lip 203 of the bent portion 2C. The upper end portions of the straps do not overlap each other, and the sliding of the strap 1 becomes good.
Therefore, it is possible to prevent the strap 1 from being stuck at the bent portion 2 </ b> C of the outlet 2. Further, since the space 20 is narrower toward the top of the bent portion 2C, the cloth member 10 of the strap 1 inserted into the insertion portion 2A on one side can be prevented from moving to the other.

  Furthermore, by forming a gap W2 between the lower lip 203 and the upper lip 201 in the bent portion 2C wider than the groove width W1 of the insertion portions 2A and 2B, an enlarged space portion can be formed in the bent portion 2C. Overlap at the strap outlet 2 can be further prevented.

  Further, by forming the upper edge 201 of the bent portion 2C in an arc shape, when the cloth members 10 and 11 of the strap 1 are moved upward by an upward tensile force, the upper edge of the cloth members 10 and 11 is bent at the bent portion 2C. Since the upper lip 201 is not caught, the overlapping of the straps 1 can be further prevented.

  As shown in FIG. 2, the strap piece 100 is integrally sewn inside the tip 1A of the strap 1 so as to improve the rigidity, and the inside of the cover member C from the enlarged space portion 20 of the bent portion 2C. It is preferable to prevent the front end portion 1A from being pulled into. Alternatively, the strap piece 100 may be sewn to make the thickness of the strap end portion 1A thicker than the groove widths 2A and 2B. By disposing the tip portion in advance outside the groove, the tip portion becomes more difficult to enter.

  The strap piece 100 is made of a material (for example, nylon) that is slippery with respect to the fabric members 10 and 11 (polyester plain weave) and a weave (twill weave) member. It is preferable that the sliding of the strap 1 and the return and return of the strap 1 are good.

  The strap piece 100 is arranged so that a part of the strap piece 100 is positioned in the cover member C when the strap 1 is pulled out, so that the end faces of both ends in the longitudinal direction of the strap piece 100 are not visually recognized from the outside. Quality is good.

  In FIG. 2, L is a leg covered with a cover member C, and this leg L is attached to the seat cushion SC via a slide rail.

It is a front view which shows the principal part of this invention. It is sectional drawing of this invention. It is a perspective view of the conventional automobile seat with a strap. FIG. 4 is an enlarged view of part A in FIG. 3. It is a front view of the conventional drawer outlet. FIG. 6 is a partial cross-sectional view showing a stack state of straps at the outlet of FIG. FIG. 6 is a partial cross-sectional view showing another state of the outlet of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 ... Outlet, 2A ... Insertion part, 2B ... Insertion part, 2C ... Bending part, 10, 11 ... Fabric member which comprises the front-end | tip part of a strap, 201 ... Upper edge of a bending part, 203 ... Lower opening of a bending part Edge, W1... Groove width of the insertion portion, W2... Spacing between the lower rim top and the upper lip of the bent portion.

Claims (4)

A strap having a proximal end connected to a locking mechanism inside the seat and having a folded portion at the distal end;
An outlet opening that opens to the outside of the seat and exposes the leading end of the strap;
The lock mechanism is formed by forming the pull-out port in an inverted U shape including a left and right insertion portion and a bent portion integrally communicating between the upper portions of the left and right insertion portions, and pulling the leading end portion of the strap. A vehicle seat that unlocks by
An unlocking structure using a strap for an automobile seat, in which a lower lip constituting the bent portion is formed in a tapered shape facing upward to prevent the straps from overlapping when pulled out.   2. The unlocking structure with a strap for an automobile seat according to claim 1, wherein a space between a lower rim top portion of the bent portion and an upper lip of the bent portion is formed wider than a groove width of the insertion portion.   The lock release structure by the strap of the automobile seat according to claim 1, wherein the upper edge of the bent portion is formed in an arc shape. 4. A structure for unlocking an automobile seat strap according to claim 1, wherein a strap piece is integrally attached to the inside of the tip of the strap.

Images