Handle parts

Abstract

To provide a door pull member easily attached to a ball chain and difficult to be removed from the ball chain.SOLUTION: The door pull member attached to the ball chain comprises: a peripheral wall part surrounding a hollow part; an upper surface part covering an upper part of the hollow part and having a ball insertion hole through which an outside and the hollow part are communicated with each other and into which a ball part is inserted; and a guide part provided below the ball insertion hole to guide the inserted ball part in a prescribed direction. The guide part has a slope descending toward a tip side in the prescribed direction, and a slit which is provided in the prescribed direction and narrower than a connection part and into which the connection part can be inserted through elastic deformation. A gap is provided between the guide part and the peripheral wall part positioned on the tip side so as to enable passage of the ball part through. A storage space is provided between the guide part and the peripheral wall part positioned on the rear side in the prescribed direction so as to store the ball part.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a pull member provided at the end of a ball chain. [Background technology]

[0002] Conventionally, a connecting member that connects both ends of a ball chain has been known as a component that can be attached to a ball chain, and this connecting member is configured to prevent the cord portion or ball portion from coming off when the tension on the ball chain is less than a predetermined value, and to allow the cord portion or ball portion to come off when the tension on the ball chain is equal to or greater than the predetermined value, by the connecting body elastically deforming. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-161325 A Summary of the Invention [Problem to be solved by the invention]

[0004] The pull member provided at the end of the ball chain is different from the above-mentioned connecting member in that it does not need to come off the ball chain and is used during operation, so it is preferable that it does not come off even when tension is applied. Also, a structure that requires the use of tools or the like to attach the pull member to the ball chain is complicated work.

[0005] The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a pull member that can be easily attached to a ball chain and is less likely to come off the ball chain. [Means for solving the problem]

[0006] The main invention for achieving this object is a pull member attached to a ball chain having a plurality of ball parts connected by connecting parts, A peripheral wall portion surrounding the hollow portion; an upper surface portion that covers an upper portion of the hollow portion and has a ball insertion hole through which the ball portion is inserted and communicates between the outside and the hollow portion; a guide portion provided below the ball insertion hole and configured to guide the inserted ball portion in a predetermined direction; Have 、 before the guide portion has an inclination that decreases toward a front side in the predetermined direction, is narrower than the connecting portion, and has a slit that is provided along the predetermined direction through which the connecting portion can be inserted while being elastically deformed; The pull member is characterized in that an accommodation space for accommodating the ball portion is provided between the guide portion and the peripheral wall portion located on the rear side in the predetermined direction. Other features of the present invention will become apparent from the following detailed description of the present invention and the accompanying drawings. Effect of the Invention

[0007] According to the present invention, it is possible to provide a pull member that can be easily attached to a ball chain and is less likely to come off the ball chain. [Brief description of the drawings]

[0008] [Figure 1] 1 is a vertical cross-sectional view showing a screen assembly having a pull member according to an embodiment of the present invention. [Diagram 2] 1 is a cross-sectional view showing a screen device having a pull member according to an embodiment of the present invention. [Diagram 3] FIG. 3 is a perspective view of the pull member hooked to the ball chain, as viewed from above. [Figure 4] 4(a) is a diagram of the pull member as viewed from above, FIG. 4(b) is a vertical cross-sectional view of the pull member, and FIG. 4(c) is a diagram of the pull member as viewed from below. [Diagram 5]13 is a perspective view showing a state in which the pull member is temporarily fixed to the rail portion. FIG. [Figure 6] Figure 6(a) is a cross-sectional view showing the state in which the ball portion is inserted into the ball insertion hole, Figure 6(b) is an oblique view of the state of Figure 6(a) seen from above, Figure 6(c) is a cross-sectional view showing the state in which the ball portion has moved downward from the gap, Figure 6(d) is a view of the state of Figure 6(c) seen from below, Figure 6(e) is a cross-sectional view showing the state in which the ball portion has moved below the guide portion, Figure 6(f) is a view of the state of Figure 6(e) seen from below, Figure 6(g) is a cross-sectional view showing the state in which the ball portion is accommodated in the accommodation space, and Figure 6(h) is a view of the state of Figure 6(g) seen from below. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pull member according to one embodiment of the present invention will now be described with reference to the drawings.

[0010] A pull member 1 of the present embodiment is used as an operating part of a screen device 3 that is attached to a building as a structural body as shown in Figs. 1 and 2 and provided together with a fitting 2 that forms a window.

[0011] In this embodiment, an example will be described in which a screen device 3 is provided on the indoor side of a fitting 2, in which a screen 4b made of a mesh material wound around an axis 4a is provided so as to be able to rise and fall freely, that is, a so-called roll screen device 3, in which a pull member 1 is attached to the lower end of a ball chain 5 hanging down from the roll screen device main body 4, for the purpose of rolling up the pulled-out screen 4b.

[0012] In the following explanation, when the roller blind device 3 attached to a building or the like is viewed from the indoor side, the up-down direction is the up-down direction, the left-right direction is the left-right direction, and the depth direction, which is the indoor-outdoor direction, is the prospective direction. Even for each part of the roller blind device 3 and the pull member 1, and even for each member constituting the roller blind device 3 in a separate state, the directions are specified and explained in terms of the up-down direction, left-right direction, prospective direction, etc. when the roller blind device 3 is attached.

[0013] The fitting 2 has a frame 2a that forms an opening, and a paper screen 2b that is provided so that the opening can be opened and closed freely, and the roller blind device 3 is provided on the indoor side of the fitting 2. The roller blind device 3 has a roller blind device main body 4 that is placed on the upper part of the frame 2a and houses a screen 4b wound around a shaft 4a, and a rail section 6 that is provided along the left and right vertical frames 2c that constitute the frame 2a and guides the screen 4b that is pulled out and raised and lowered.

[0014] A ball chain 5 for operating the screen 4b hangs down from the roller blind device main body 4. The ball chain 5 is formed into a rope shape with multiple ball parts 5a connected by connecting parts 5b, and the pull member 1 is hooked to the ball part 5a provided at the lower end of the ball chain 5.

[0015] As shown in Fig. 2, the rail section 6 has a screen end housing section 6a in which the left and right ends of the screen 4b are housed and guided, and an end bar guide section 6b that guides the left and right ends 4d of the end bar 4c provided at the lower end of the screen 4b. In Fig. 2, the right end sides of the screen 4b and the end bar 4c are shown broken away, but the right end sides of the screen 4b and the end bar 4c are engaged with the rail section 6 in the same way as the left end sides. The end bar guide section 6b is a groove along the vertical direction provided between the screen end housing section 6a and the opposing pieces 6c that face each other at a distance on the indoor side and the outdoor side, which are both sides in the projection direction of the screen end housing section 6a, and the end bar 4c is guided up and down by this groove.

[0016] The pull member 1, which is hooked to the lower end of the ball chain 5, can be temporarily fixed to the facing piece 6c that forms the end bar guide portion 6b on the indoor side. The structure in which the pull member 1 is temporarily fixed will be described later. In the following description of the pull member 1, the directions will be specified in terms of the up-down direction, left-right direction, projection direction, etc., when the pull member 1 is temporarily fixed to the facing piece 6c.

[0017] 3, the pull member 1 that is hooked to the lower end of the ball chain 5 has a generally cylindrical pull body 10 with a covered top, and a temporary fixing part 15 that protrudes from the side of the pull body 10 that faces the outdoors. The pull member 1 is hooked to the ball chain 5 and hung with the longitudinal direction of the generally cylindrical pull body 10 aligned vertically.

[0018] As shown in Figure 4, the pull handle main body 10 has a peripheral wall portion 11 that surrounds the inner space to form a hollow portion 1a, an upper surface portion 12 that forms the hollow portion 1a together with the peripheral wall portion 11 and covers the upper part of the hollow portion 1a, and a guide portion 13 that is provided in the hollow portion 1a and guides the ball portion 5a.

[0019] The upper surface portion 12 has a ball insertion hole 12a through which the ball portion 5a can be inserted. The width of the ball insertion hole 12a in the left-right direction is formed slightly wider than the diameter of the ball portion 5a, and the width in the forward direction is formed slightly wider than the width in the left-right direction. The ball insertion hole 12a is a round hole formed almost in the center and slightly larger than the diameter of the ball portion 5a, and is an elongated hole that connects with the indoor half and widens to the outdoor side.

[0020] Guide portion 13 is provided below upper surface portion 12 and connected to said upper surface portion. Guide portion 13 has a slope that decreases in height toward the outdoor side along the projection direction. Guide portion 13 has a flat plate shape, so that both the upper side and the lower side of guide portion 13 have a slope that decreases in height toward the outdoor side along the projection direction.

[0021] The guide portion 13 is provided with a slit 13a at approximately the center in the left-right direction. The slit 13a is connected from the upper end side to the lower end side of the guide portion 13, so that the guide portion 13 is divided into two parts, left and right, by the slit 13a. The slit 13a has a uniform width part 13b provided at the upper end side and having a uniform width, and a variable width part 13c provided at the lower end side and having a gradually changing width. Here, the direction in which the slit 13a is provided and the direction in which the inclination of the guide portion 13 becomes lower correspond to the predetermined direction. In the following description, this direction is referred to as the guide portion descending direction.

[0022] The ball portion 5a inserted into the ball insertion hole 12a is guided along the guide portion 13 from the upper end side to the lower end side of the guide portion 13, so that in the guide portion 13 and the slit 13a, the lower end side (in this embodiment, the outdoor side) is the forward side in the direction in which the guide portion descends, and the upper end side (in this embodiment, the indoor side) is the rear side in the direction in which the guide portion descends.

[0023] The uniform width portion 13b has a width slightly narrower than the width of the connecting portion 5b. The variable width portion 13c is narrower than the diameter of the ball portion 5a at the lower end of the guide portion 13 and wider than the width of the connecting portion 5b, and the width gradually narrows toward the upper side, and is connected to the uniform width portion 13b located above.

[0024] The peripheral wall 11 is substantially cylindrical. Between the inner peripheral surface 11a (hereinafter referred to as the inner peripheral surface on the front side) of the peripheral wall 11 located on the front side in the guide descending direction and the guide 13, a gap S1 through which the ball 5a can be inserted in the vertical direction is provided. More specifically, since the gap S1 is provided between the guide 13 and the peripheral wall 11 on the front side, it is sufficient that a part of the ball 5a can move downward while entering the variable width portion 13c. For this reason, the gap between the lower end of the guide 13 and the peripheral wall 11 on the front side does not need to be wider than the diameter of the ball 5a. In addition, when the ball 5a passes through the gap S1 downward, if the part with the maximum diameter in the horizontal cross section passes below the guide 13, the ball 5a moves backward through the variable width portion 13c as the diameter in the horizontal cross section becomes smaller.

[0025] The inner peripheral surface 11a on the front side is provided with a restricting portion 11b that protrudes inward and restricts the movement of the ball portion 5a in the gap S1 in the left-right direction, which is a direction intersecting the guide portion descending direction. The restricting portion 11b is provided so as to connect from a position higher than the lower end of the guide portion 13 to a position lower than the lower end of the guide portion 13 so that the center of the ball portion 5a where the connecting portion 5b is located is guided to the center of the slit 13a in the left-right direction when the ball portion 5a is guided into the gap S1 between the inner peripheral surface 11a on the front side and the guide portion 13. Therefore, when the ball portion 5a passes downward through the gap S1 between the inner peripheral surface 11a on the front side and the guide portion 13, it is guided by the restricting portion 11b.

[0026] Between the inner peripheral surface 11a (hereinafter referred to as the rear inner peripheral surface) of the peripheral wall portion 11 located rearward in the guide portion descending direction on the peripheral wall portion 11 and the guide portion 13, there is provided an accommodation space S2 in which the ball portion 5a guided upward by the lower surface of the guide portion 13 is accommodated. The rear inner peripheral surface 11a is provided with a rear restricting portion 11c that restricts the left-right movement of the ball portion 5a guided into the accommodation space S2. The rear restricting portion 11c restricts the movement of the ball portion 5a so that the ball portion 5a guided into the accommodation space S2 between the rear inner peripheral surface 11a and the guide portion 13 does not move left-right and is stable.

[0027] A temporary fixing portion 15 that protrudes outdoors is provided on the upper end of the outdoor side of the peripheral wall portion 11. The temporary fixing portion 15 has an outdoor side protruding piece 15a that protrudes outdoors from the upper part of the peripheral wall portion 11, and extending pieces 15b that extend on both the left and right sides from the tip of the outdoor side protruding piece 15a. A protrusion 15c that protrudes toward the peripheral wall portion 11 is provided at the tip of each extending piece 15b on the surface facing the peripheral wall portion 11.

[0028] In the outer peripheral surface of the peripheral wall 11, a protruding portion 11d is provided at a portion facing the extending piece 15b of the temporary fixing portion 15 so as to form a surface substantially parallel to each of the extending pieces 15b. At this time, the distance between the surface of the extending piece 15b on the peripheral wall 11 side and the protruding portion 11d of the peripheral wall 11 is formed to be substantially the same as the thickness of the facing piece 6c of the rail portion 6.

[0029] In this embodiment, the ball chain 5 and the pull member 1 are disposed on the right side of the roller blind device 3, so that the pull member 1 is temporarily fixed to the right rail section 6 as shown in Figs. 2 and 5. The pull member 1 is temporarily fixed by inserting the extension piece 15b extending to the right side into the end bar guide part 6b on the indoor side of the right rail section 6. At this time, the opposing piece 6c of the rail section 6 is located between the extension piece 15b and the protruding part 11d of the peripheral wall part 11.

[0030] Since a protrusion 15c is provided on the tip side of the extension piece 15b, the extension piece 15b bends so that the tip side portion is positioned closer to the outdoor side than the outdoor-side protruding piece 15a side, and therefore, due to the elasticity of the extension piece 15b, the facing piece 6c is clamped between the extension piece 15b and the overhanging portion 11d, and the pull member 1 is temporarily fixed to the rail portion 6. When the ball chain 5 and the pull member 1 are arranged on the left side of the roller blind device 3, the pull member 1 is temporarily fixed by the extension piece 15b extended to the left side.

[0031] Next, a method for fastening the pull member 1 to the ball chain 5 will be described. First, as shown in Figures 6(a) and 6(b), the pull member 1 is brought close from below the ball chain 5 arranged so as to hang down, or the ball chain 5 is lowered and brought close to the pull member 1, and the ball part 5a located at the lower end of the ball chain 5 is inserted into the ball insertion hole 12a. At this time, the ball part 5a is placed on the upper surface of the guide part 13.

[0032] Next, as shown in FIG. 6(c) and FIG. 6(d), the ball chain 5 is lowered or the pull member 1 is raised, that is, the position of the pull member 1 is raised relative to the ball chain 5, so that the ball portion 5a on the guide portion 13 moves along the guide portion 13, and the ball portion 5a moves downward from the gap S1 between the variable width portion 13c of the slit 13a and the peripheral wall portion 11 at the front. At this time, the ball portion 5a moves downward while being restricted by the restricting portion 11b provided on the peripheral wall portion 11 at the front. The peripheral surface of the ball portion 5a is guided by the edge of the variable width portion 13c, and the ball portion 5a moves on the guide portion 13 toward the peripheral wall portion 11 at the front. When the maximum diameter portion of the ball portion 5a moves under the guide portion 13, the ball portion 5a moves downward while moving the variable width portion 13c backward, i.e., toward the uniform width portion 13b.

[0033] Next, as shown in Fig. 6(e) and Fig. 6(f), the ball chain 5 is pulled up or the pull member 1 is lowered, that is, the position of the pull member 1 is lowered relative to the ball chain 5, so that the ball part 5a moves under the guide part 13 along the guide part 13. At this time, the connecting part 5b moves from the variable width part 13c to the uniform width part 13b in the slit 13a. Since the width of the uniform width part 13b is narrower than the width of the connecting part, the connecting part 5b enters the uniform width part 13b while elastically deforming and narrowing its width, and when it leaves the uniform width part 13b, its width is restored. The ball part 5a, which has been relatively pulled up, is accommodated in the accommodation space S2 and regulated by the rear regulating part 11c as shown in Fig. 6(g) and Fig. 6(h), so that the pull member 1 is stably engaged with the ball chain 5.

[0034] According to the pull member 1 of this embodiment, when the ball portion 5a is accommodated in the accommodation space S2, the connecting portion 5b, which is compressed when passing through the slit 13a, returns to its original width after passing through and becomes wider than the width of the slit 13a, and the pull member 1 is suspended from the ball chain 5 and the ball portion 5a is restricted from moving forward by the guide portion 13. Therefore, it is possible to provide a pull member 1 that is difficult to come off the ball chain 5.

[0035] Moreover, the pull member 1 can be easily locked to the ball chain 5 by simply inserting the ball portion 5a into the ball insertion hole 12a and moving it relatively downward along the guide portion 13, and then elastically deforming the connecting portion 5b to pass through the slit 13a after moving it below the guide portion 13. Therefore, it is possible to provide a pull member 1 that is easily attached to the ball chain 5 and is less likely to come off the ball chain 5.

[0036] In addition, since the width of slit 13a on the front side is formed wider than the width of connecting portion 5b, when ball portion 5a is guided by guide portion 13 and moves from between guide portion 13 and peripheral wall portion 11 located on the front side to below guide portion 13, connecting portion 5b can enter slit 13a without elastic deformation. At this time, since the width of slit 13a on the front side is narrower than ball portion 5a, when connecting portion 5b enters slit 13a, ball portion 5a has moved below guide portion 13 and cannot move to the upper side of guide portion 13.

[0037] Furthermore, since the width of the rear side of the slit 13a is narrower than the width of the connecting portion 5b, when the connecting portion 5b passes through the slit 13a, the connecting portion 5b cannot move forward unless it is compressed again. In other words, when the ball portion 5a is accommodated in the accommodation space S2 and the pull member 1 is suspended, the ball portion 5a cannot move forward, so no force acts in the direction of moving the connecting portion 5b into the slit 13a. Therefore, the connecting portion 5b is not compressed either, so the ball chain 5 becomes less likely to come off the pull member 1. Therefore, it is possible to provide a pull member 1 that can more easily attach the ball chain 5 and is less likely to come off.

[0038] In addition, since the underside of the guide portion 13 has a surface that becomes higher from the front side to the rear side, it is possible to move the ball portion 5a into the storage space S2 and engage it simply by relatively pulling up the ball chain 5, whose connecting portion 5b has entered the slit 13a and whose ball portion 5a has moved below the guide portion 13.

[0039] In addition, the pull member 1 is provided with a temporary fixing portion 15, and the pull member 1, which is hooked to the lower end of the hanging ball chain 5 and serves as the operating portion of the screen device 3, is temporarily fixed to the rail portion 6 by the temporary fixing portion 15, thereby preventing the pull member 1 from swinging due to wind or the like. This makes it possible to prevent the pull member 1 from coming into contact with the fittings 2, etc., causing damage to the pull member 1, the building, the fittings 2, etc., or generating noise.

[0040] The above-mentioned embodiment is for the purpose of facilitating understanding of the present invention, and is not intended to limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and it goes without saying that the present invention includes equivalents thereof. The present embodiment includes at least the following inventions.

[0041] (Aspect 1) A pull tab attached to a ball chain having a plurality of ball parts connected by connecting parts, A peripheral wall portion surrounding the hollow portion; an upper surface portion that covers an upper portion of the hollow portion and has a ball insertion hole through which the ball portion is inserted and communicates between the outside and the hollow portion; a guide portion provided below the ball insertion hole and configured to guide the inserted ball portion in a predetermined direction; having the guide portion has an inclination that decreases toward a front side in the predetermined direction, and has a width narrower than that of the connecting portion, and a slit through which the connecting portion can be inserted while being elastically deformed is provided along the predetermined direction, The pull member is characterized in that an accommodation space for accommodating the ball portion is provided between the guide portion and the peripheral wall portion located on the rear side in the predetermined direction. The pull member according to aspect 1, The slit is characterized in that the width of the front side is wider than the connecting portion and narrower than the ball portion, and the width of the rear side is narrower than the connecting portion. The pull member according to the first or second aspect, The lower side of the guide portion has a surface that becomes higher from the front side toward the rear side. A pull tab member according to any one of aspects 1 to 3, The peripheral wall portion located on the front side is provided with a regulating portion that regulates horizontal movement of the ball portion passing between the peripheral wall portion and the guide portion.

[0042] Note that the embodiments described below also include the following inventions as reference techniques. A pull member is attached to a ball chain in which a number of ball portions are connected by connecting portions, the pull member having a peripheral wall portion surrounding a hollow portion, a top surface portion covering the upper part of the hollow portion and having a ball insertion hole through which the ball portion is inserted, connecting the outside to the hollow portion, and a guide portion provided below the ball insertion hole and guiding the inserted ball portion in a predetermined direction, the guide portion having a slope that decreases toward the front side in the predetermined direction, and having a width narrower than the connecting portion, the guide portion having a slit provided along the predetermined direction through which the connecting portion can be inserted while elastically deforming, a gap is provided between the guide portion and the peripheral wall portion located on the front side through which the ball portion can pass, and an accommodation space is provided between the guide portion and the peripheral wall portion located on the rear side in the predetermined direction in which the ball portion is accommodated.

[0043] According to this pull member, the ball portion, which has been inserted through a ball insertion hole provided in the upper surface portion covering the upper part of the hollow portion, moves downward while being guided in a predetermined direction by a guide portion provided below the ball insertion hole and having an inclination. The ball portion then moves below the guide portion through a gap between the guide portion and the peripheral wall portion located on the forward side in the predetermined direction. Thereafter, the connecting portion is elastically deformed and compressed while being inserted through the slit, and the ball portion is moved upward relative to the pull member on the rear side in the insertion direction, whereby the ball portion moves into the accommodation space provided between the guide portion and the peripheral wall portion on the rear side in the predetermined direction, and the width that was compressed after the connecting portion passed through the slit is restored.

[0044] Therefore, when the ball portion is housed in the housing space, the connecting portion passes through the slit and its width is wider than the width of the slit, and when the pull member is hung from the ball chain, the ball portion cannot move in a predetermined direction. This makes it possible to provide a pull member that is difficult to come off the ball chain.

[0045] Furthermore, the pull member can be easily attached to the ball chain by simply inserting the ball portion into the ball insertion hole and moving it downward along the guide portion, and after it has moved below the guide portion, elastically deforming the connecting portion to pass through the slit while moving the ball portion upward relative to the pull member. This makes it possible to provide a pull member that is easily attached to the ball chain and is less likely to come off the ball chain.

[0046] Such a pull member is characterized in that the width of the slit on the front side is wider than the connecting portion and narrower than the ball portion, and the width of the slit on the rear side is narrower than the connecting portion.

[0047] According to such a pull member, the slit is formed so that the width on the front side is wider than the connecting portion, so that when the ball portion is guided by the guide portion and moves from between the guide portion and the peripheral wall portion located on the front side to the lower side of the guide portion, the connecting portion can enter the slit without elastic deformation. At this time, the width of the slit on the peripheral wall portion side on the front side is narrower than the ball portion, so that when the connecting portion enters the slit, the ball portion has moved below the guide portion and cannot move to the upper side of the guide portion. Furthermore, the width on the rear side of the slit is narrower than the connecting portion, so that when the connecting portion passes through the slit, the connecting portion cannot move to the front side unless it is compressed again. In other words, when the ball portion is accommodated in the accommodation space and the pull member is suspended, the ball portion cannot move to the front side, so no force is applied in the direction of making the connecting portion enter the slit. Therefore, the connecting portion is not compressed either, so that the ball chain is less likely to come off the pull member. Therefore, it is possible to provide a pull member that allows the ball chain to be attached more easily and is less likely to come off.

[0048] The pull member is characterized in that the lower side of the guide portion has a surface that becomes higher from the front side toward the rear side.

[0049] With this type of pull member, the underside of the guide portion has a surface that becomes higher from the front side to the rear side, so that the connecting portion can enter the slit and the ball portion that has moved below the guide portion can be more easily moved into the storage space.

[0050] Such a pull member is characterized in that the peripheral wall portion located on the forward side is provided with a regulating portion that regulates the horizontal movement of the ball portion passing between the peripheral wall portion and the guide portion.

[0051] According to this pull member, the peripheral wall at the front is provided with a restricting portion that restricts the horizontal movement of the ball portion, so that the position of the ball portion can be stabilized when the ball portion passes between the guide portion and the peripheral wall located at the front side. Therefore, since the connecting portion can easily enter through the slit, it is possible to provide a pull member that can be easily attached by a ball chain. [Explanation of symbols]

[0052] 1 pull member, 1a hollow portion, 5 ball chain, 5a ball portion, 5b connecting part, 11 peripheral wall part, 11b regulating part, 12 top part, 12a ball insertion hole, 13 guide portion, 13a slit, S1 void, S2 containment space,

Claims

1. A pull member attached to a ball chain having a plurality of ball parts connected by connecting parts, A peripheral wall portion surrounding the hollow portion; an upper surface portion that covers an upper portion of the hollow portion and has a ball insertion hole through which the ball portion is inserted and communicates between the outside and the hollow portion; a guide portion provided below the ball insertion hole and configured to guide the inserted ball portion in a predetermined direction; having the guide portion has an inclination that decreases toward a front side in the predetermined direction, and has a width narrower than that of the connecting portion, and a slit through which the connecting portion can be inserted while being elastically deformed is provided along the predetermined direction, A pull member, characterized in that an accommodation space for accommodating the ball portion is provided between the guide portion and the peripheral wall portion located on the rear side in the predetermined direction.

2. The pull member according to claim 1, A pull member, wherein the slit has a width on the front side that is wider than the connecting portion and narrower than the ball portion, and a width on the rear side that is narrower than the connecting portion.

3. The pull member according to claim 1 or 2, A pull member, wherein a lower side of the guide portion has a surface which becomes higher from the front side toward the rear side.

4. The pull member according to any one of claims 1 to 3, A pull member characterized in that the peripheral wall portion located on the forward side is provided with a regulating portion that regulates the horizontal movement of the ball portion passing between the peripheral wall portion and the guide portion.

Images