JP5442663B2 - Seat shutter - Google Patents

Description

  The present invention relates to a sheet shutter that can be installed at an entrance / exit of a building such as a factory or a warehouse, and various devices.

  2. Description of the Related Art Conventionally, seat shutters that are installed at entrances and partitions of buildings such as factories and warehouses, and that lift up and down seats that can be wound around a sheet drum and that can be fed out are well known. In such a seat shutter, a rail groove in the vertical direction with the left and right inner sides being opened is formed in the outer rail configured of the left and right columns, an inner rail is provided in the rail groove, and the left and right end portions of the seat are moved up and down An engagement guide that engages movably in the left and right directions is formed on the inner rail, and a biasing member that elastically biases the inner rail outward in the left and right directions is a groove side surface that is a front and rear surface in the rail groove. And the inner rail are known, and the seat is tensioned while elastically pulling the inner rail toward the outer side (see, for example, Patent Document 1).

Japanese Patent Publication No. 6-31502

In the seat shutter disclosed in Patent Document 1, the inner rail moves to the left and right against the elastic force of the urging member when the sheet receives a strong wind or when a person or an object collides with the sheet. Since the impact is reduced, it is possible to efficiently prevent the left and right end portions of the seat from coming off the engagement guide.
However, since the urging member made of a rectangular parallelepiped block-like elastic member is inserted in a filled state between the groove side surface and the inner rail, the urging member is compressed and deformed when the inner rail moves to the left and right. A large frictional resistance may be generated due to strong contact with the groove side surface, which may hinder smooth left-right movement of the inner rail.

  Further, the urging member as described above is generally manufactured in a block-like cross section by a sponge processing of rubber or synthetic resin material, and wears during reciprocating motion, and is deteriorated at an early stage due to poor weather resistance. Has the disadvantage of losing its elasticity. In addition, there is a problem that a small piece that has become brittle and peeled enters the gap between the side wall and the rail base and impairs the mobility of the inner rail.

  The present invention provides outer rails having rail grooves on the left and right support columns, and stores and supports the inner rails in the pair of rail grooves so as to move left and right, so that the left and right end sides of the fed seat can be raised and lowered. Engagement guides for guiding are provided on the left and right inner rails respectively, and when the urging members for urging the engagement guides in the rail grooves outwardly to prevent the seat from loosening are provided, It is an object to make the movement smooth and to suppress wear of the urging member.

In order to solve the above-mentioned problem, firstly, a pair of left and right support columns 3, 3 and a seat case 4 installed between upper ends of the left and right support columns 3, 3 are provided. Are provided with outer rails 14 having vertical rail grooves 14c that are open on the left and right inner sides in a plan view, and at least part of the inner rails 16 are provided in the rail grooves 14c of the left and right outer rails 14 respectively. The left and right inner rails are provided with vertical engagement guides 21 that are housed and supported so as to move left and right, and that guide the up and down movement of the left and right ends of the seat 2 fed out of the seat case 4 in a state in which left and right movement is restricted. A gap space 14e formed between the inner rail 16 and the front and rear surfaces of the rail groove 14c in which the inner rail 16 is accommodated or one side of the groove. Is provided with an urging member 26 that elastically urges the inner rail 16 toward the bottom of the rail groove 14c, and in the seat shutter that pulls the sheet 3 to the left and right sides by the urging member 26, the urging member 26 is a gap. An elastic sheet portion 29 that partitions the space 14e forward and backward is provided, and the inner rail 16 is elastically biased left and right by elastic bending or bending deformation of the elastic sheet portion 29, and a rail groove in the inner rail 16 is provided. A rail base 19 having a plate shape is formed integrally with the bottom surface side end portion of the rail groove 14c so as to be in contact with the groove side surface of the rail groove 14c. And extending in the front-rear direction so as to face the rail base 19 from the open end side of the rail groove 14 c in the outer rail 14. Building provided opposing wall 14d integrally, is characterized in that interposed an elastic sheet 29 between the rail base 19 and the opposing wall 14d.

Secondly, the rail base 19 is characterized in that it has a guide portion 22 that is integrally formed with each of the front and rear end portions of the rail base 19 and contacts the groove side surface of the rail groove 14c in a planar shape .

  Third, a guide corner portion 19a is formed by the rail base 19 and the engagement guide 21 extending from the rail base 19 to the left and right inward, and the groove corner portion 14f is formed by the opposing wall 14d and the groove side surface. The elastic sheet portion 29 is formed and brought into contact with the guide corner portion 19a and the groove corner portion 14f and provided in the gap space 14e.

  The fourth feature is that a plate-like open-side contact portion 27 that comes into contact with the opposing wall 14d in a planar shape is integrally formed at the end of the elastic sheet portion 29 near the groove corner portion 14f.

  Fifth, the open side contact portion 27 is formed so as to close the open end side of the rail groove 14c of the gap space 14e.

  Sixth, the end portion on the rail base 19 side of the elastic sheet portion 29 is formed integrally with the rail base 19.

  Seventh, a plate-like bottom contact portion 28 that contacts the rail base 19 in a planar shape is formed integrally with the end portion on the guide corner portion 19a side of the elastic sheet portion 29.

  Eighth, the elastic sheet portion 29 is provided with a stretchable portion formed in a bellows shape by a plurality of foldable bent portions 29a.

  Ninth, the aster rail 14 is connected to the inner wall 3a so that the inner wall 3a forming the left and right inner ends of the column 3 and the intermediate wall 3e formed in the middle of the left and right in the column 3 are connected by the outer rail 14. It is characterized by being formed integrally with 3a and the intermediate wall 3e.

  According to the above configuration, when a strong force is applied to move the left and right ends of the seat and the inner rails on both ends of the seat in the left and right direction due to impact caused by receiving strong wind or coming into contact with a person or an object. When the elastic sheet portion of the biasing member is bent or bent in the gap space, an elastic force acts on the side that weakens the strong force in the left and right inward direction, thereby reducing the impact. The curved or bent elastic sheet portion is only partially in contact with the groove side surface due to its planar shape. For this reason, it is possible to reduce the wear of the urging member by buffering the impact on the seat without hindering the smooth left-right movement of the inner rail. Intrusion of cleaning water, rainwater, dust, etc. into the side surface of the groove can be efficiently prevented.

  In addition, if the elastic sheet portion is constituted by a member that does not have water permeability, even if it is a sheet shutter used in a food factory or the like in which tap water is sprayed and washed, it passes through the biasing member. Thus, it is possible to efficiently prevent the cleaning water or the like from entering the portion of the gap space near the side surface of the groove.

  In addition, the rail base in the front-rear direction extends integrally from the rail groove bottom side end of the inner rail toward the groove side surface, and extends in the front-rear direction so as to face the rail base from the open end side of the rail groove in the outer rail. If the opposing facing wall is integrally provided and the elastic sheet portion is inserted between the rail base and the opposing wall, the elastic seat portion is stable between the rail base and the opposing wall by suppressing displacement and the like. Can be installed.

  In addition, a guide corner portion is formed by the rail base and the engagement guide extending from the rail base to the left and right inside, and a groove corner portion is formed by the opposing wall and the groove side surface, and the elastic sheet portion is If the guide corner portion and the groove corner portion are brought into contact with each other and provided in the gap space, the entire length of the elastic sheet portion can be ensured as long as possible, and the guide corner portion and the groove corner portion Two locations of the elastic sheet portion can be stably positioned.

  Furthermore, a plate-like open-side contact portion that comes into contact with the opposing wall in a planar shape is formed integrally with the end portion near the groove corner portion of the elastic sheet portion, or a plate that comes into contact with the rail base in a planar shape If the bottom contact part is formed integrally with the guide corner part side end of the elastic sheet part, the surface contact between the opposing wall and the open contact part, or the rail base and the bottom contact part By this planar contact, the elastic sheet portion can be positioned and arranged more stably.

  Moreover, if the open side contact portion is formed so as to close the rail groove open end side of the gap space, it is possible to more efficiently prevent foreign matters such as water and dust from entering the rail groove.

  If the rail base side end of the elastic seat is formed integrally with the rail base, the elastic seat does not come off from the inner rail, and the elastic force acts on the thinner rail stably from the elastic seat. It becomes possible to make it.

  In addition, if the elastic sheet portion is provided with a stretchable portion formed in a bellows shape by a plurality of foldable bending portions, each bending portion is neatly folded during elastic deformation of the elastic sheet portion. When returning to the original shape, the bent portions are deployed in an orderly manner, so that the elastic force can be stably applied in the left-right direction.

  In addition, the aster rail is formed integrally with the inner wall and the intermediate wall so that the inner wall that forms the left and right inner ends of the column and the intermediate wall formed in the middle of the column in the column are connected by the outer rail. By doing so, it is possible to increase the strength while reducing the thickness of the support column and the outer rail, thereby reducing the weight of the support column and reducing the manufacturing cost.

FIG. 3 is a front view showing a partially broken sheet shutter to which the present invention is applied. It is a sectional side view which shows the state which accommodated the control panel in the support | pillar of the sheet shutter. It is a sectional side view of FIG. 2 which shows the attitude | position which took out the control panel. It is the sectional view on the AA line of FIG. It is sectional drawing which shows the state which the inner rail of FIG. 4 moved inside. It is the BB sectional view taken on the line of FIG. It is CC sectional view taken on the line of FIG. It is sectional drawing which shows the state which decomposed | disassembled the operation part of FIG. It is a perspective view of an elastic membrane member. It is a side view of a sheet return guide and an inner rail. It is the sectional view on the AA line of FIG. It is a front view of a sheet return guide. FIG. 13 is a plan view of FIG. 12. It is a front view of a control panel. It is a side view of FIG. It is a side view which shows another embodiment of a seat case. It is a sectional view showing another embodiment of a sheet tension mechanism in which an elastic membrane member and an inner rail are integrated.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an overall front view of a sheet shutter according to the present invention. Reference numeral 1 denotes a seat shutter installed mainly at a doorway of a building, and a column (side frame) 3 configured as a guide member that supports the right and left ends of the shutter seat 2 and guides the vertical movement. And a cylindrical seat case 4 or the like that houses the opening / closing mechanism of the seat 2. The column 3 is mounted and fixed along a pillar or wall constructed at the entrance of the building, and the seat case 4 is installed sideways along an installation part such as a beam or a wall of the building and mounted on the left and right columns 3. It is assembled in a state where it is placed.

  The illustrated sheet shutter 1 is mounted on both left and right columns 3 and 3 so that both sides of the seat case 4 are detachable by mounting members outside the upper portion of the column 3. Further, a seat drum (feeding device) 5 is provided inside the seat case 4 as a shutter opening / closing mechanism, and the sheet 2 is wound and fed out by forward and reverse rotation of the seat drum 5. The seat 2 is supported by seat guides provided on the left and right support columns 3 so that the left and right sides can be slid up and down.

First, the overall configuration of the sheet shutter 1 will be described with reference to FIGS.
The seat case 4 forms a hollow case chamber by detachably attaching end plates 6a and 6b to both sides of a case body 6 formed into a rectangular tube shape in a side sectional view. The case chamber accommodates a hollow cylindrical seat drum 5 extending in the left-right direction that is rotatably supported about its own axis by left and right end plates 6a, 6b. In addition, an opening 6c facing the upper ends of the left and right support columns 3 is formed at the rear surface of the lower surface of the case body 6, and the sheet 2 can be taken in and out of the seat case 4 through the opening 6a.

  One end side of a columnar motor 7 housed in the seat case 4 extending in the left-right direction is bolted to the inner side surface of the left and right one side (right side in the illustrated example) end plate 6 a of the case body 6. The motor 7 supports a ring-shaped drive body 8 on a drive shaft, and the drive drum 8 is spline fitted to the inner surface of the seat drum 5 to rotate the seat drum 5 forward and backward.

  The end plate 6b on the left and right other side (left side in the illustrated example) of the case main body 6 is attached so as to close the open end of the other side of the case main body 6, and is attached to the other end of the seat drum 5. The support shaft 8b of the mounting plate 8a is rotatably supported. As a result, the seat drum 5 is pivotally supported horizontally in the seat case 4 and, as the motor 7 rotates in the forward and reverse directions, the seat 2 is advanced (lowered) and retracted (retracted). Open and close.

  Further, the opening / closing operation of the seat 2 is performed by the motor 7 based on a manual operation command of the operation unit 9a composed of various operation switches provided in the control panel 9 and a detection command of the detection unit 9b for detecting the passing body. This is performed by forward / reverse rotation control. The control panel 9 is housed and installed in the support column 3 so as to be removable by the configuration described later.

  The sheet 2 is made of a rectangular curtain made of synthetic resin having translucency and flexibility, and the upper end (base side) is wound around the peripheral surface of the sheet drum 5 so as to be able to be fed out. On the left and right edges of the sheet 2 shown in the figure, frame-shaped guide protrusions 10 having a known configuration are provided at predetermined intervals, and the left and right columns 3, 3 face each other (opposing surfaces). A sheet guide portion 11 is provided, and the guide protrusion 10 is engaged with the sheet guide portion 11 so as to be slidable up and down.

  Thus, the left and right sides of the seat 2 are engaged with the left and right seat guide portions 11 so as to be movable up and down, so that the seat 2 is stretched in the lateral direction between the left and right support columns 3 and 3. Smooth up and down. The seat shutter 1 is installed on an installation surface such as a ground surface or a floor surface. When the seat 2 is lowered and the seat shutter 1 is closed, an installation unit 12 that maintains airtightness and contacts the installation surface 12 is grounded. Is provided at the lower end of the sheet 2. The ground contact portion 12 also serves as a weight portion having a weight incorporated therein, and the seat 2 is extended downward in a tensioned state by the weight.

  The support column 3 has a flat cross section by an inner wall 3a which is a wall at the left and right inner ends, an outer wall 3b which is a wall at the left and right outer ends, and a front side wall 3c and a rear side wall 3d which are connection walls connecting the two in front and rear. It is formed in a prismatic shape that forms a quadrangular view and extends in the vertical direction. As shown in FIGS. 4 and 8, a vertical outer rail 14 having a U-shape in a plan view that is depressed toward the outer wall 3 b is integrally formed at an intermediate position in the front-rear direction of the inner wall 3 a of the column 3. Is formed.

Specifically, the actor rail 14 includes front and rear side walls 14a and 14a and bottom walls 14b connecting the left and right outer ends of the front and rear side walls 14a and 14a. On the side, a vertical rail groove 14c is formed with the left and right inner sides open. In other words, the rail groove 14c that extends in the up-down direction and that is recessed leftward and rightward in a plan view is formed by the opposing surfaces (groove side surfaces) of the front and rear side walls 14a, 14a and the left and right inner side surfaces (bottom surface) of the bottom wall 14b. Is formed.

  And in this rail groove 14c, the inner rail 16 and the sheet | seat return guide 17 connected to the upper part of this inner rail 16 are fitted so that attachment or detachment is possible from the edge part of the full length direction of the rail groove 14c. Further, from the left and right inner ends of the front and rear side walls 14a, 14a, an inner groove wall (opposing wall) 14d in the vertical direction is integrally formed so as to protrude in the front-rear direction in a plan view when approaching each other. An opening of the rail groove 14c is formed between a pair of front and rear inner groove walls 14d, 14d provided on each outer rail 14. In other words, a pair of front and rear inner groove walls 14d and 14d are exposed on the open side of the rail groove 14c, and a groove extending in the vertical direction is formed at the boundary between the inner groove walls 14d and 14d and the side walls 14a and 14a. A corner 14f is formed.

  Further, the front and rear side walls 14a forming the groove side surface located on the side of the rail groove 14c are integrally connected to the front and rear connection walls 3c and 3d respectively by intermediate walls 3e extending front and rear in a plan view. Yes. In other words, the outer rail 14 so that the front and rear inner walls 3 a and 3 a located at the left and right inner ends of the column 3 and the front and rear intermediate walls 3 e and 3 e in the column 3 are connected by the outer rail 14. Are integrally formed with the inner wall 3a and the intermediate wall 3e.

  For this reason, the strength can be improved without making the outer rail 14 that receives a large load in the front-rear direction inside the column 3 that is required to be installed with a predetermined thickness or less without being thicker. . As described above, since the column strength can be sufficiently increased by the cross-sectional shapes of the outer rail 14 and the intermediate wall 3e, it is possible to reduce the weight and reduce the manufacturing cost without increasing the thickness of the column 3.

  Furthermore, the outer rail 14 is formed in a size that fits within the left and right inner halves of the hollow space of the support column 3 (specifically, the bottom wall 14b is located closer to the inner wall 3a), thereby A multipurpose space for efficiently storing electrical components such as the control panel 9 and the operation unit 9a and other parts is secured in the support column 3 in which the size (thickness) of the cross-sectional area is restricted.

  Further, a wiring space 3g extending in the direction of the column 3 is formed between the front and rear side walls 14a and 14a and the front and rear connection walls 3c and 3d. In addition, the side wall 3a on one side of the front and rear (the rear side in the illustrated example) and the connection wall 3d on the side facing the side wall are located on the bottom wall 14b side in the front view and are closer to each other. Projecting vertical rib-like projections 14g and 3f are integrally formed, and the pair of projections 14g and 3f can securely position and store the harness 13 or the like in the wiring space 3g. The structure increases the rigidity of the column 3 (see FIG. 6).

  Furthermore, since the support | pillar 3 is improving the intensity | strength as mentioned above, the support | pillar opening part 3h which opens a part of connection wall 3c (more specifically, front side wall 3c) can be formed. The column opening 3h is formed along the entire length direction of the column 3 to facilitate multipurpose use of a column space 41 described later. Specifically, rib-like opening edges 3j projecting into the support column 3 are integrally formed on the left and right ends of the support opening 3h in the connection wall 3c, respectively, while the thickness direction is directed in the front-rear direction and the support column 3 Locking pieces 15a and 15a projecting into the support column 3 are formed on the left and right ends of the lid cover 15 which is a plate-like member extending in a band shape in the direction, respectively. The lid cover 15 is fitted into the column opening 3h and closed, while the column opening 3h is closed while being engaged with the opening edges 3j and 3j of the column. The opening 3h is opened.

  Further, a plurality of bolt holes 18 a into which the mounting bolts 18 are inserted are formed in the middle of the left and right side walls 3 d of the column 3 along the entire length direction of the column 3. Then, the bolt 18 is inserted into the column 3 from the column opening 3h opened by removing the lid cover 15, and the bolt 18 is inserted into a building or the like where the bolt hole 18a and the seat shutter 1 are installed, By fastening, the column 3 can be fixed easily. In addition, the support | pillar 3 comprised as mentioned above can be easily manufactured by drawing or extrusion of an aluminum material similarly to the conventional aluminum support | pillar frame. Further, it is desirable that the lid cover 15 be a strip plate made of synthetic resin, so that an operation portion 9a, which will be described later, is cut to a size corresponding to the length of the upper and lower column opening portions 3h installed in the middle of the column and has a good appearance. Can be covered.

Next, the inner rail 16 will be described with reference to FIGS.
The inner rail 16 is formed in a vertical direction over the entire length of the rail groove 14c of the outer rail 14, and has a plate-like rail base 19 that is long in the front-rear direction along the bottom surface of the rail groove 14c. It is comprised from the engagement guide 21 which protrudes in the left-right inside from the middle part of the rail base 19 in the front-back direction.

  Guide portions (fitting portions) 22 and 22 extending in the left and right sides in a plan view are integrally formed at the front and rear ends of the rail base 19, and the pair of guide portions 22 and 22 are formed on the front and rear side walls 14 a and 14 a. The rail base 19 is fitted between the front and rear side walls 14a and 14a of the rail groove 14c so as to come into contact with the surface of the rail groove 14c, so that the inner rail 16 is slidably accommodated in the rail groove 14c. Supported. The pair of fitting portions 22 slidably move the inner rail 16 in the left-right direction and improve the flexibility and durability of the rail base 19 without increasing the thickness of the rail base 19.

  The engagement guide 21 projects in a bifurcated manner in the front-rear direction toward the left and right inner side in a plan view, and has a pair of front and rear holding bodies 23, 23 depending on the shape. In addition, a guide corner portion 19a in the vertical direction is formed at the connection portion between the base end portion which is the left and right outer end portions of the engagement guide 21 and the rail base, and the distal end portion of the engagement guide 21 is It faces the open side of the rail groove 14c.

  The protruding end portions (tip portions), which are the left and right inner ends of the front and rear holding bodies 23, 23, are formed into a hook shape by being bent or bent back and forth so as to be close to each other in a plan view. For this reason, between the front ends of the front and rear holding bodies 23, 23, a gripping portion 23 a that grips the left and right end portions of the sheet 2 with the front and back is formed, while between the base end portions of the front and rear holding bodies 23, 23 Is formed with a bag-like guide groove 23b extending in the vertical direction.

  The sheet 2 whose front and back are gripped by the gripping portion 23a is guided up and down in a state where the swinging back and forth is restricted. The guide protrusion 10 described above is accommodated in the guide groove 23b in a state in which the left-right movement is permitted and the forward-backward movement is restricted. Incidentally, the left and right holding bodies 23, 23 have a substantially constant thickness throughout, and can be elastically curved or bent toward the side away from each other. The guide groove 23b can be opened.

  As a result, as shown in FIG. 4, the seat 2 is slid up and down while preventing the guide protrusions 10 on the left and right ends from being accommodated in the guide grooves 23 b of the engagement guide 21 and being pulled out to the left and right. That is, even when the seat 2 receives the wind pressure in the front-rear direction when the seat 2 is lifted and the guide projection 10 opens the seat groove 23b and tries to escape from the guide groove 23b, the guide projection 10 is pulled out by the hook-shaped projecting end portion of the holding body 23. As a result, the seat 2 is smoothly guided up and down. The inner rail 16 and the seat return guide 17 are made of a synthetic resin material having wear resistance and a certain degree of flexibility.

  In the structure as described above, a pair of front and rear groove spaces (gap space) 14e is formed between the front and rear groove side surfaces in the vertical rail grooves 14c and the engagement guide 21 of the inner rail 16. The groove spaces 14e formed before and after the inner rail 16 are surrounded by the engagement guide 21, the rail base 19, the inner groove wall 14d, and the side wall 14a in four directions in a plan view. It becomes a state.

  In each groove space portion 14e, an elastic film member (biasing member) 26 that elastically biases the inner rail 16 to the left and right outer sides by bending deformation or bending deformation (bending deformation in the illustrated example), The groove space 14e is provided so as to be divided forward and backward, and the left and right end portions of the guide protrusion 10 and the seat 2 are also elastically extended left and right as the inner rail 16 is elastically biased outward. Towed. The elastic film member 26 prevents entry of foreign matter such as water and dust into the inner side of the rail groove 14c, and can provide a high-quality sheet shutter with excellent durability.

  That is, as shown in FIG. 4, FIG. 5 and FIG. 9, the elastic membrane member 26 is made of rubber or synthetic resin and has an inner seating surface having a width that comes into contact with the inner surface of the inner groove wall 14d. (Open side contact portion, seal portion) 27, and outer seat surface (bottom side contact portion, seal portion) 28 having a contact width contacting the rail base 19 in a planar shape, and both are connected. It has a film-like elastic film part (elastic sheet part) 29 having elasticity in the pulling direction (sheet tension direction) and flexibility, and the whole is integrally formed so as to form a Z shape in a plan view. Yes.

  In other words, the flat cross-sectional shape of the elastic film part 29 is changed to the groove corner part 14f and the guide corner part so that the front and rear edges of the elastic film part 29 are in contact with the groove corner part 14f and the guide corner part 19a, respectively. The inner seating surface 27 is formed integrally with the groove corner portion 14f side end portion (inner corner portion 27a) of the elastic film portion 29, and the guide corner of the elastic film portion 29 is formed. The outer seating surface 28 is formed integrally with the end portion on the side of the portion 19a (outer corner portion 28a). In addition to this, the inner seat surface 27 has a length that makes the front and rear width narrower than the outer seat surface 28, and has a length that closes or substantially closes the left and right inner ends from which the groove spaces 14e are opened. It is formed into a shape that it has.

  Furthermore, the thickness of the elastic film portion 29 is about several millimeters, and the elastic film portion 29 has a flat cross-sectional shape and is bent or bent in a bellows shape in the middle of the left and right (in the illustrated example, a plurality of bent portions). Part 29a) is formed. Therefore, as shown in FIG. 5, when a strong compressive force in the left-right direction is applied to the elastic film member 26, the elastic film part 29 is folded so that the expansion / contraction part composed of a plurality of bent parts 29a is regularly reduced in the left-right direction. Rarely compressed, an elastic force corresponding to the amount of compression of the stretchable portion is applied to the inner rail 16 as a tensile force to the left and right outer sides. In this way, the elastic film portion 29 expands and contracts in the left-right direction. At this time, the elastic film portion 29 having a bellows shape is smoothly expanded and contracted, and blurring in the front-rear direction is suppressed.

  For this reason, since the elastic membrane member 26 can suppress contact between the elastic membrane portion 29 and the side wall 14a or the engagement guide 21 even during compression, the elastic membrane portion 29 can be damaged and deteriorated even during long-term use. Therefore, the traction performance of the highly durable and stable sheet 2 can be maintained.

  Therefore, when the inner rail 16 moves inward, like the one in which an elastic member having a block-like cross section is installed in the groove space 14e, the elastic member is compressed and swells, and is accompanied by a movement resistance due to sliding contact with the side wall 14a. The inner rail 16 can be smoothly moved left and right. Further, the sheet tensioning operation can be stably performed without causing the sheet 2 and the guide protrusion 10 to be forced by the movement resistance.

  Unlike the sponges having air permeability and water absorption, the elastic membrane member 26 connects the inner groove wall 14d and the rail base 19 by an elastic membrane portion 29 having elasticity and sealing function by rubber or synthetic resin. For this reason, water and dust entering from the outside of the rail groove 14 c are reliably prevented from entering the groove space portion 14 e without passing through the elastic film portion 29. For example, water and dust soaked like an elastic member made of sponge or brush material or fiber material enter the gap between the rail base 19 and the side wall 14a and solidify to cause a movement resistance for a long time. be able to.

  Furthermore, the elastic film portion 29 has a groove corner portion 14f formed by the inner side wall 3a and the side wall 14a at both ends, a guide corner portion 19a formed by the base side of the engagement guide 21 and the rail base 19, respectively. Since it is placed in contact with the groove space portion 14e, the following effects are obtained. That is, since the elastic membrane portion 29 is elastic and is installed in the groove space portion 14e having a rectangular cross section with a long extension distance in the diagonal direction, the elastic membrane portion 29 is compressed when the elastic membrane portion 29 is compressed. It is possible to increase the bending allowance without forcibly bending, prevent early deterioration of the film portion, and improve durability.

  Further, since the end portion on the left and right outer sides (the bottom side of the rail groove 14 c) of the elastic film portion 29 is brought into contact with the guide corner portion 19 a on the base side of the engagement guide 21, the end portion on the outer side partitioned by the elastic film portion 29. The groove space portion 14e can be converged toward the back side. Therefore, even when water enters the outer groove space portion 14e vigorously during cleaning performed by spraying tap water on the sheet 2, the outer groove space portion 14e converges toward the back side. For this reason, the entry of water into the groove space portion 14e closer to the inner side is restricted. Further, the outer groove space portion 14e is a converged narrow space portion, and has an advantage that the dirt can be easily washed away by the washing water flow, the drainage is facilitated and the drying is easy.

  The elastic membrane member 26 has a Z-shaped cross section so that the inner seat surface 27 and the outer seat surface 28 are in close contact with the inner wall 3a and the rail base 19 in a wide area, and an adhesive is required. Intrusion of water can be prevented, and the elastic membrane member 26 can be easily attached and detached, and assembly and disassembly of the sheet tension mechanism can be facilitated.

  Although the elastic membrane member 26 is illustrated in which the inner seat surface 27 and the outer seat surface 28 are formed on the elastic membrane portion 29, the elastic membrane portion 29 is made of, for example, a synthetic resin or steel made of elasticity and flexibility. In this case, it is desirable to position and fit the groove corner portion 14f and the guide corner portion 19a.

Next, the installation aspect in the support | pillar 3 of the elastic film member 26 comprised as mentioned above is demonstrated.
First, the inner rail 16 and the seat return guide 17 are inserted and set in the rail groove 14c from the end in the full length direction of the rail groove 14c, and then in the groove space portion 14e from the end in the full length direction of the rail groove 14c. By inserting and setting the elastic membrane member 26, the installation work of the elastic membrane member 26 can be performed easily and efficiently. At this time, when the elastic membrane member 26 is contracted against the elasticity of the elastic membrane portion 29, the elastic membrane member 26 is moved from the groove end to the inside of the groove space portion 14e in a state where the inner seat surface 27 and the outer seat surface 28 are brought close to each other. Can be easily inserted.

  When the inserted elastic membrane member 26 is in a free state in the groove space portion 14e, the inner corner portion 27a is positioned at the groove corner portion 14f of the groove space portion 14e formed by the inner groove wall 14d and the side wall 14a. The outer corner portion 28a can be positioned in a state where it enters the guide corner portion 19a of the inner rail 16. Therefore, the elastic film member 26 can be easily and quickly placed in the support column 3. At the same time, since the inner seat surface 27 and the outer seat surface 28 are in close contact with the inner groove wall 14d and the rail base 19, the elastic film member 26 can be used in the groove space even if the use of an adhesive or the like is omitted. It is stably fixed in the portion 14e. As a result, the elastic membrane member 26 having no water permeability and air permeability can partition the groove space portion 14e in the front and rear directions, and even if cleaning water, rainwater, dust and the like enter the outside of the groove, the intrusion into the inside of the groove is ensured. To prevent.

  When the sheet shutter 1 including the sheet tension mechanism configured as described above receives a strong force in the front-rear direction perpendicular to the sheet surface due to strong wind or the like, the inner rail 16 as illustrated in FIG. A tensile force in the inward direction is received through the sheet 2 and the guide protrusion 10. At this time, the inner rail 16 slides inward in the outer rail 14 against the elastic film member 26, so that the tensile force due to wind can be buffered.

  Further, when a passing body such as a car collides with the seat 2, the inner rail 16 moves inwardly as shown in FIG. 5 while the seat 2 is strongly pressed in the front-rear direction. It becomes a folding shape and becomes an inward movement limit (sliding limit), and the guide protrusion 10 acts to pry open the holding bodies 23 and 23 against its elasticity while tilting in the pressing direction.

  Then, the guide protrusion 10 elastically pushes and opens the holding bodies 23, 23, comes out of the sheet groove 23 b where the engagement guide 21 is expanded, and is detached from the inner rail 16. Accordingly, the sheet 2 that has been detached from the inner rail 16 and has lost support by the support column 3 is released from excessive tension due to the pressing force, thereby preventing the sheet 2 and the guide protrusion 10 from being damaged. In addition, damage to the inner rail 16 and related members can be prevented without causing overload.

Next, the sheet return guide 17 will be described with reference to FIGS.
As shown in FIG. 1, the seat return guide 17 is installed in the column 3 so as to be connected to the upper portion of the inner rail 16 via the outer rail 14. Thereby, the sheet return guide 17 performs the winding guide and the feeding guide of the sheet 2, and as shown by the dotted line in FIG. 12, the sheet 2 detached from the inner rail 16 is pulled up at the time of winding to return to the original posture. It is possible to let it go out in a proper posture again. The sheet return guide 17 is made of synthetic resin and has substantially the same cross-sectional shape as the inner rail 16. That is, the sheet return guide 17 includes an engagement guide 21 that forms a rail base 19 in the middle of the guide main body, and forms guide grooves 23b that accommodate the guide protrusions 10 on the inside and outside thereof.

  Further, the sheet return guide 17 is provided with a return groove 31 formed with a notch having a vertical width for introducing the detached sheet 2 in the middle of the engagement guide 21. Each of the holding bodies 23, 23 positioned above and below the return groove 31 is formed with a V-shaped inclined surface at the upper and lower inlet portions. Thereby, the inlet inclined end surfaces of the holding bodies 23 and 23 smoothly guide the introduction of the sheet 2 and the guide protrusion 10 into the sheet groove 23b and the guide groove 23b from above or below the return groove 31.

  Further, a sheet stopper piece 32 formed by extending the holding body 23 inward is integrally provided on the upper portion of the guide body of the sheet return guide 17. This sheet stopper piece 32 receives the stoppers 33 installed on both sides of the grounding portion 12 when a malfunction occurs in the winding of the sheet 2, thereby restricting further elevation of the sheet 2 and winding the grounding portion 12. Can be prevented.

  In the restricted state, the sheet drum 5 rotates until the motor 7 stops rotating in response to a detection command from the overload detection means. Therefore, the wound sheet 2 is wound and the swelling and wrinkles at the time of winding are removed to properly wind the sheet drum 5. It is possible to make the winding diameter on the left and right sides of the sheet 2 substantially uniform by correcting the winding diameter. In this way, the rotation of the seat drum 5 is stopped by the motor 7 in response to the overload detection command. Thereafter, when the sheet 2 is fed and rotated, the slack in the initial lowering is eliminated and the inclination of the grounding portion 12 is prevented. It can be properly grounded.

  As shown in FIGS. 10 and 11, the seat return guide 17 can be connected to the rail base 19 of the inner rail 16 by detachably connecting a connecting piece 34 projecting from the lower end of the rail base 19. . That is, the seat return guide 17 is connected to the rail base 19 of the inner rail 16 with the connecting piece 34 projecting from the lower end by the four screws 35, and elastically by the elastic film member 26 extended from the inner rail 16 side. Supported. As a result, both the inner rail 16 and the seat return guide 17 can be easily assembled and disassembled by simple operations such as insertion and withdrawal in the rail direction, and maintenance work such as replacement of parts of the seat tension mechanism can be easily performed. It can be carried out.

  Further, the sheet return guide 17 is a lubricating member made of an oil-impregnated material such as felt that supplies a lubricant in contact with the guide protrusion 10 inside a thick sheet stopper piece 32 that protrudes inward from the engagement guide 21 side. 36 is provided. The lubrication member 36 holds the lubricating oil supplied from the supply hole 38 and faces the guide groove 23b in a state where the lubrication member 36 is inserted into a lubrication hole portion 37 having a rectangular cross section which is drilled laterally in the sheet stopper piece 32. ing. As a result, the lubricating member 36 can easily and uniformly lubricate substantially the entire range of the guide protrusion 10 that moves up and down at the uppermost position of the support column 3, and also suppresses the wear and noise of each sliding portion, and the seat. 2 can be raised and lowered smoothly.

Next, referring to FIGS. 1 to 3, FIG. 6, FIG. 14, and FIG. 15, the mounting structure of the electrical component for controlling the seat shutter installed on the column 3 will be described.
First, the post 3 has a multi-purpose space capable of storing various electrical components and stored items in addition to the control panel 9 in the configuration of the seat tension mechanism above the opposite half of the outer rail 14 in the post 3. The column space 41 is formed. 6, 14, and 15, the control panel 9 is attached to the electrical equipment base 42 having a predetermined length and a front-rear width within the support space 41, and attached to the electrical equipment base 42 via a mounting seat. And a control component unit 44, a conversion device 46, and a setting device 47 provided on the substrate 43.

  The electrical base 42 is provided with a mounting hole 53 that is inserted into the inner wall 3 a and the intermediate wall 3 e and through which a bolt (mounting member) 52 located at the rear portion of the column 3 is inserted. Screwed to the column 3. Thus, as shown in FIG. 2, the control panel 9 can be mounted and fixed along the column direction by tightening the bolts 52 while being housed in the column space 41. The electrical base 42 can be brought into contact with the protrusion 3f and the bottom wall 14b, and is fixed so as to prevent the control panel 9 from shaking in the left and right and front and rear directions with a simple configuration.

  At this time, the control panel 9 arranges an electrical component that is desired to avoid vibration, a control component unit 44, an electrical component having many wirings, and the like on the upper side of the substrate 43. On the lower side, a setting device 47 and the like that require daily maintenance work and device operation are arranged. In addition, a terminal portion 54 that fixes various wirings together is installed on the uppermost portion of the substrate 43. And the terminal part 54 is detachably connected with the connector of the electric wire 58 extended from the motor.

  As a result, in the state where the control panel 9 is housed in the support column 3, the support opening portion 3h is connected to the cover cover 15 by engaging the left and right opening edges 3j, 3j with the left and right engaging pieces 15a, 15a of the cover cover 15. Can be easily blocked.

  When the control panel 9 is to be taken out, the bolt 52 is loosened after removing the cover 15 by the reverse operation, and then the control panel 9 is rotated forward with the bolt 52 as a fulcrum. As shown in FIG. 3, the take-out posture can be made such that the lower side of the control panel 9 is largely exposed. As a result, the operator can easily perform the maintenance work for the necessary portions on the control panel 9 in the exposed state. At this time, since the setting device 47 and the like are at a low position, setting change work and maintenance work can be efficiently performed without requiring an unreasonable posture.

  The electrical component mounting structure configured as described above does not have the control panel 9 or the like protruding from the side of the column 3 or the seat case 4 unlike the conventional one, and the control panel 9 or the like is provided in the column space 41. On the other hand, it can be installed in a simple and inexpensive structure in the column direction. Further, since the column space 41 is formed in the front-rear direction, which is the column direction, for example, the control panel 9 adapted to the type of the seat shutter 1 having a different size can be selected and installed at a desired height. Since the operation part 9a, a tool, an instruction manual, etc. which are mentioned later can be accommodated in the vacant place, it can be used as a multipurpose space having convenience.

  Further, the control panel 9 is provided with one end of the electrical base 42 in the column space 41 so as to be rotatable, and the other end is attached so as to be able to be drawn and rotated in the front-rear direction. It can be arranged and connected to the motor 7 by a short-length electric wire 58, so that a compact wiring structure can be obtained. In addition, the electric wires 58 and various cords wired on the side with less movement can reduce the bending at the time of turning and pulling out the control panel 9, so that troubles in wiring can be solved. There are features.

Next, the operation unit 9a will be described with reference to FIGS. 1 to 3, FIG. 7, and FIG.
The operation unit 9a is configured by installing a switch panel (operation surface plate) 61 in an exposed state at a height where each column 3 can be operated in an upright state. Specifically, the operation portion 9a includes a switch mounting plate 62 having a channel-shaped cross section that is mounted using the inside of the cover mounting opening edge 3j, and a washer with a washer fixed on the upper and lower sides inside the switch mounting plate 62. The switch panel 61 is detachably attached to the nut 63, the screw 64 is attached to the nut 63 and the opening edge 3j, and the like.

  The switch panel 61 has a length corresponding to the switch mounting plate 62, and is formed to have a width that covers the column opening 3h and fits to the surface step portions of the opening edges 3j on both sides. A plurality of operation switches 66 for vertically rotating and stopping the motor 7 are mounted on the switch mounting plate 62 in the vertical direction. Each operation switch 66 is pushed from an operation hole formed in the switch panel 61 to be turned ON / OFF. It is provided freely.

  The switch panel 61 of the right operation unit 9a is provided with a monitor 67 for displaying the operation status. Further, harnesses such as operation switches 66 provided on the switch panel 61 are connected to the control panel 9 through the wiring space 3g.

  The operation portion 9a having the above-described configuration is attached by tightening the nut 63 to the upper and lower ends of the switch mounting plate 62 with the countersunk screws 68, and then connecting both leg portions of the U-shaped cross section of the switch mounting plate 62 to the groove portion 3k of the opening edge 3j. Mating. Then, after the switch panel 61 is fitted to the opening edge 3 j from the front side, a screw 64 is inserted and fastened to the nut 63. By tightening the screw 64, the switch panel 61 is drawn toward the switch mounting plate 62 side, and both sides strongly hold the corresponding opening edge 3j, so that the operation portion 9a can be easily attached to the support column 3. .

  Further, after attaching the operation portion 9a, the support column 3 is closed by fitting each cover cover 15 cut to the opening length into the support opening portion 3h formed above and below the operation portion 9a. As a result, the column 3 can be finished in a clean appearance by closing the entire column opening 3h. On the other hand, when disassembling the operation portion 9a, loosening the screw 64 and removing the switch panel 61 releases the connection of the switch mounting plate 62 to the opening edge 3j, so that the operation portion 9a can be freely moved in the column space 41. Can be handled.

  Thereby, as shown by a dotted line in FIG. 8, the switch mounting plate 62 can be detached from the groove 3k and inclined, and can be taken out from the column opening 3h. Therefore, the operation portion 9a configured as described above can make the switch mounting plate 62 detachable by using the inside of the opening edge 3j for mounting the cover. There is a feature that it can be installed at a position.

Next, the operation and usage of the sheet shutter 1 including the sheet guide configured as described above will be described.
The sheet shutter 1 stops the rotation of the sheet drum 5 with the position immediately before the sheet 2 is wound around the sheet drum 5 and the stopper 33 comes into contact with the sheet stopper piece 32 of the sheet return guide 17 as the highest position. To control the rotation. The state in which the grounding portion 12 is stopped above the return groove 31 of the sheet return guide 17 at this highest position is the standby posture for the next lowering. When the sheet drum 5 is rotated in the feeding direction and the sheet 2 is fed, the guide protrusions 10 at both ends of the sheet 2 are guided by the inner rails 16 of the left and right columns 3 to slide downward, and the grounding portion 12 is placed on the installation surface. The seat drum 5 automatically stops at the position where it comes into contact with the ground, and the front door is closed in a state where the seat 2 is stretched in the width (lateral) direction to prevent slack.

  When the seat 2 is in the closed state or in the up-and-down operation, the seat shutter 1 is pressed by strong wind and the guide projection 10 is about to come out of the engagement guide 21. Pull-out is prevented by the engaging force, and at this time, the inner rail 16 is slid inwardly against the pulling force (elasticity) of the elastic membrane member 26.

  When the wind pressure is weakened, the inner rail 16 is returned to the original seat tension posture by the elasticity of the elastic film member 26. Accordingly, the inner rail 16 can support the seat 2 in tension while buffering the wind pressure against changes in the wind, and the opening and closing operation is made smooth while preventing the seat from being detached by the wind.

  Further, when a passing body such as a car collides with the seat 2, the seat 2 receives a strong external force in the forward or backward direction, and the inner rail 16 reaches a sliding limit as shown in FIG. In this case, the guide protrusion 10 operates so as to pry open the tilt holding bodies 23, 23 in the pressing direction. As a result, the guide projection 10 opens the seat groove 23b and comes out of the engagement guide 21 and is detached from the inner rail 16, and the seat 2 loses its support by the column 3 and becomes free. Therefore, the seat 2 can prevent the damage by avoiding the pressing force exceeding the durability limit, and the inner rail 16 and related members fixed to the inner rail 16 are not subjected to any further load.

  The sheet 2 detached from the inner rail 16 as described above is restored to the original state by the winding rotation of the seat drum 5. At this time, the sheet 2 is freely bent between the left and right support columns 3 while the guide protrusions 10 are not bent. The position rises in a free state from front to back and left and right. Further, the both sides of the sheet 2 on the side of the seat drum 5 are automatically removed from either the groove opening (the front side or the rear side) of the sheet return guide 17 with respect to the return groove 31 of the sheet return guide 17 at the time of winding. It is drawn in and wound around the sheet drum 5 while correcting the deflection when passing through the sheet groove 23b above the return groove 31.

  As a result, the seat 2 is automatically returned into the engagement guide 21 at the highest position where the grounding portion 12 is stopped above the return groove 31 of the seat return guide 17 and is in a standby position for lowering. The drum 5 can be lowered again by the feeding rotation.

  Further, when the sheet 2 is moved up and down, one of the stoppers 33 comes into strong contact with the sheet stopper piece 32 and is pulled by the motor in a state where resistance for restricting the rise is applied, and one side of the sheet 2 is pulled strongly. In other words, the seat return guide 17 and the inner rail 16 on the side swing with the lower side as a fulcrum so that the upper side is inclined as a whole against the elastic film member 26. At this time, the elastic membrane member 26 elastically disperses the load in the pulling direction while being proportionally compressed and deformed in the column direction by the displacement amount due to the inclination, so that the seat return guide 17 and the inner rail 16 swing inward. Increase buffering.

  When the movement of the inner rail 16 in the left-right direction is repeated as described above, the elastic film portion 29 is positioned in the groove space portion 14e by the inner corner portion 27a and the outer corner portion 28a to the groove corner portion 14f and the guide corner portion 19a. The elastic film member 26 is opposed to the sheet 2 by pulling outward against the inward pulling force that moves the inner rail 16 inward when the seat 2 receives a large rising load or pressing load. In other words, the elastic membrane portion 29 having a plurality of bent portions 29a within the membrane width is compressed in a bellows-like fold shape against its elasticity, and is pulled outward while expanding in accordance with the reduction in load. Counter. Further, since the elastic film portion 29 is bent and compressed in a bellows shape, the inner rail 16 is pressed with a uniform elastic force with respect to the moving stroke, and the left and right movement of the inner rail 16 is made smooth.

At this time, even if the elastic film portion 29 is compressed by the large inner movement of the inner rail 16, the elastic film portion 29 is stretched in the diagonal direction of the groove space portion 14e so as to allow a space portion that allows sufficient bending back and forth. Since it forms, wear is suppressed, without the bending part 29a contacting the side wall 14a. Further, since the elastic film part 29 concentrates compressive force mainly on the groove corner part 14f and the guide corner part 19a, each corner part regulates the displacement of the elastic film member 26.
Therefore, the elastic membrane member 26 acts to efficiently exert the traction force even in long-term use.

Further, the elastic membrane member 26 having no water permeability partitions the groove space portion 14e into the groove inner side and the groove outer side before and after the elastic film portion 29, so that even if cleaning water, rainwater, dust or the like enters the groove outer side, It is possible to reliably prevent the intrusion into.
Furthermore, since the elastic film member 26 made of a rubber material has a smooth surface, high water repellency, and is easy to dry, even if it is frequently washed with tap water or subjected to rain with strong winds, Water intrusion can also be reliably controlled. Moreover, since there is little adhesion of dust and water, the sheet shutter 1 having excellent durability and maintenance workability can be obtained.

  At this time, since the elastic membrane portion 29 stretched in the diagonal direction of the groove space portion 14e faces the open end side of the rail groove 14c, the elastic membrane portion 29 faces directly to the tap water. As a result, it is possible to efficiently wash off the deposits and ensure water shielding to the inner part of the groove. Therefore, there is a feature that it can be suitably used as a sheet shutter 1 of a food factory that requires daily disinfection and cleaning with water.

  The elastic film member 26 is not limited to the shape of the illustrated example, and has elasticity that does not include, for example, the inner seat surface 27 and the outer seat surface 28 in the form of the seat shutter 1 used for various purposes. The elastic film portion 29 can be a thin strip. In this case, it is desirable to form a contact portion that contacts the groove corner portion 14f and the guide corner portion 19a in an engaged state at the film width end of the elastic film portion 29.

  Further, the elastic membrane member 26 can be inserted and set in a state where the direction of insertion into the groove space portion 14e is reversed so as to be the direction shown in FIG. 17, for example. That is, in this case, the inner corner portion 27a is located close to the holding body 23 side of the engagement guide 21, and the outer corner portion 28a is installed in a state separated from the guide corner portion 19a.

  Further, each elastic membrane member 26 can be bonded to the rail base 19 in advance before and after the engagement guide 21 with respect to the inner rail 16. In this case, packing and conveyance can be efficiently performed in a state where the pair of front and rear elastic film members 26 are integrated with the inner rail 16. The assembly to the outer rail 14 can be easily inserted into the outer rail 14 from one side in a state where the elastic film member 26 bonded to the front and rear of the engagement guide 21 is compressed, thereby reducing the assembly cost. be able to.

Next, another embodiment of the seat case 4 in the case where electrical components are attached to the seat case 4 will be described with reference to FIG.
The seat case 4 has a storage space 74 in which the electrical component 73 can be stored and installed by inserting a corner portion between the front surface wall 71 and the bottom wall 72 in a notch shape inside, so that the entire length of the seat case 4 can be accommodated. It is formed in the direction. In other words, the storage space 74 is formed by a lateral surface portion 71a that is bent with the lower side of the front surface wall 71 facing inward, and a vertical surface portion 72a that is bent with the front side of the bottom wall 72 upward. ing.

  On the other hand, in the same manner as the control panel 9, the electrical component 73 has a base 43 having various electrical components attached to the electrical base 42, and the electrical base 42 is attached to the vertical surface portion 72a by screws 76. 73 can be detachably installed in the storage space 74. At the time of attachment, it is desirable to attach in advance to the storage space 74 in a state in which at least the outer surface of the electrical component 73 is covered by the electrical cover 77 made of a synthetic resin material having transparency or translucency.

  In the illustrated example of the electrical cover 77, the electrical component 73 can be inserted from the rear surface side. In this state, the cover rear wall is sandwiched between the electrical base 42 and the vertical surface portion 72a, and the screw 76 is fastened. I try to install it. As a result, the electrical cover 77 can be attached without projecting from the outer shape of the seat case 4 while covering the entire front and bottom surfaces and side surfaces of the electrical component 73 in the storage space 74. Further, the appearance design of the sheet shutter 1 can be enhanced by installing the electrical cover 77 made of synthetic resin.

  In the case where the control panel 9 is installed in the support column 3, a detection unit 9 b, a light 73 a that illuminates the installation surface, a display device 73 b that lights various display contents, and the like are required in the electrical cover 77. Can be provided. Further, in the installation of the electrical component 73 covered by the electrical cover 77, a sufficiently large storage space 74 is provided if the lower side of the seat case 4 is formed so as to bulge downward from that of FIG. Therefore, the control panel 9 having the above-described configuration can be easily installed on this portion.

Next, another embodiment of the elastic membrane member 26 will be described with reference to FIG.
The inner rail 16 and the elastic membrane member 26 can be manufactured in a state in which both are integrated. Another embodiment of the sheet tensioning mechanism using the inner rail 16 and the elastic film member 26 in this case will be described below. In addition, description is abbreviate | omitted about the structure and effect | action similar to the thing of the said embodiment.

  Each elastic film member 26 disposed in front of and behind the engagement guide 21 is configured such that the base portion 29 b of the elastic film portion 29 is integrally joined to the front and rear ends of the inner side surface of the rail base 19. The elastic membrane portion 29 is formed with a plurality of bent portions 29a that can be folded in a bellows shape within the membrane width, and an inner seating surface 27 at the end of the membrane along the inner rail direction. In other words, the end portion on the rail base 19 side of the elastic film portion 29 is integrally formed with the rail base 19 in different types.

  That is, the elastic film member 26 formed integrally with the rail base 19 of the inner rail 16 is in an unloaded state, as shown by a dotted line in FIG. Then, the elastic film members 26 are folded and compressed on both sides of the engagement guide 21 and inserted into the outer rail 14 together with the inner rail 16. As a result, the front and rear elastic membrane members 26 press the rail base 19 toward the bottom wall 14b in the outer rail 14 with the inner seat surface 27 in contact with the inner groove wall 14d, thereby exhibiting the traction of the seat 2. .

  Further, the elastic film member 26 integrally formed with the inner rail 16 can omit the work process of bonding the outer seating surface 28 of the elastic film portion 29 to the rail base 19, so that the type and manufacturing cost of parts, and the conveyance Cost and the like can be reduced. Further, as shown in the illustrated example, even if the base portion 29 b of the elastic film portion 29 is disposed near the front and rear ends of the rail base 19, the elastic membrane portion 29 is integrally formed with the rail base 19, so that no positional deviation occurs. Accordingly, the inner rail 16 is smoothly moved and the traction performance of the seat 2 is maintained for a long time.

  The integrated production of the inner rail 16 and the elastic membrane member 26 is performed by mixing different materials and supplying a hard synthetic resin material and a soft synthetic resin material, which are well-known means, simultaneously to each main part of one mold. It can be easily manufactured by extrusion or drawing using a molding method. In this process, a hard synthetic resin material is supplied to the mold part on the inner rail 16 side, and a soft synthetic resin material is supplied to the mold part on the elastic film member 26 side. As for the material, stable material bonding is performed at the joint portion between the base portion 29 b of the elastic film portion 29 and the rail base 19.

  In the case where both the inner seat surface 27 and the outer seat surface 28 of the elastic membrane member 26 are formed, in the example shown in FIG. 4 and the like, the elastic membrane portion 29 extends over the guide corner portion 19a and the groove corner portion 14f. Although formed in an oblique direction in a plan view, it may be reversed and provided in the groove space portion 14e. Specifically, one end portion of the elastic membrane portion 29 is located on the opposite side of the guide corner portion 19a across the groove space portion 14e in plan view, while the other end portion of the elastic membrane portion 29 is In a plan view, the groove space portion 14e is located on the opposite side of the groove corner portion 14f.

3 Column 3a Inner wall 3e Intermediate wall 4 Seat case 14c Rail groove 14d Inner groove wall (opposite wall)
14e Gap space (gap space)
14f Groove corner portion 14 Outer rail 16 Inner rail 19 Rail base 19a Guide corner portion 21 Engagement guide
22 Guide part 26 Elastic membrane member (biasing member)
27 Inner seat (open side contact part, seal part)
28 Outer seating surface (bottom side contact part, seal part)
29 Elastic membrane part (elastic sheet part)
29a bent part

Claims (9)

The left and right struts (3) include a pair of left and right struts (3), (3) and a seat case (4) installed between the upper ends of the left and right struts (3), (3). , (3) are provided with outer rails (14) having upper and lower rail grooves (14c) opened on the left and right inner sides in a plan view on the opposing surfaces, and rail grooves (14) of the left and right outer rails (14) are provided. 14c) at least a part of the inner rail (16) is housed in the left side and supported so as to be movable left and right, and left and right side movements of the seat (2) fed out from the seat case (4) are restricted. The upper and lower inner rails (16) are respectively formed with vertical engagement guides (21) for raising and lowering the guide in the state, and the inner rail (16) and the rail groove (14c) in which the inner rail (16) is housed. On both sides The gap space (14e) formed between the groove side surface and the groove surface is provided with a biasing member (26) that resiliently biases the inner rail (16) toward the bottom side of the rail groove (14c). In the sheet shutter in which the sheet (2) is pulled to the left and right by the urging member (26), the urging member (26) includes an elastic sheet part (29) that partitions the gap space (14e) forward and backward, and the elastic sheet part ( 29) is configured to elastically bias the inner rail (16) to the left and right outer sides by elastic bending or bending deformation, and the bottom side end of the rail groove (14c) in the inner rail (16) A rail base (19) having a plate shape is formed integrally along the bottom surface of the rail groove (14c), and the rail base (19) is contacted with the groove side surface of the rail groove (14c). Towards the groove side An opposing wall (14d) extending in the front-rear direction so as to face the rail base (19) from the open end side of the rail groove (14c) in the outer rail (14) is integrally provided, and the rail base ( 19) A sheet shutter having an elastic sheet portion (29) interposed between the opposing wall (14d) . The sheet shutter according to claim 1, wherein the rail base (19) has a guide portion (22) integrally formed at each of the front and rear end portions of the rail base (19) and in planar contact with the groove side surface of the rail groove (14c) . A guide corner portion (19a) is formed by the rail base (19) and the engagement guide (21) extending from the rail base (19) to the left and right inside, and the opposing wall (14d) and the groove side surface forming a groove corner (14f) by billing the elastic sheet portion (29), the guide corner and (19a), Setto allowed to the groove corner (14f), provided in the gap space (14e) Item 3. The sheet shutter according to any one of Items 1 and 2 .   4. A plate-like open-side contact portion (27) that comes into contact with the opposing wall (14d) in a planar shape is integrally formed at the end of the elastic sheet portion (29) closer to the groove corner portion (14f). Sheet shutter.   The sheet shutter according to claim 4, wherein the open side contact portion (27) is formed so as to close the open end side of the rail groove (14c) of the gap space (14e).   The sheet shutter according to any one of claims 3 to 5, wherein an end portion of the elastic sheet portion (29) on the rail base (19) side is integrally formed with the rail base (19).   A plate-like bottom contact portion (28) that contacts the rail base (19) in a planar shape is formed integrally with an end portion on the guide corner portion (19a) side of the elastic sheet portion (29). The sheet shutter according to claim 5.   The sheet shutter according to any one of claims 1 to 7, wherein the elastic sheet portion (29) is provided with a stretchable portion formed in a bellows shape by a plurality of foldable bent portions (29a).   The inner wall (3a) forming the left and right inner ends of the column (3) and the intermediate wall (3e) formed in the middle of the left and right in the column (3) are connected by the outer rail (14). The sheet shutter according to any one of claims 1 to 8, wherein the aster rail (14) is integrally formed with the inner wall (3a) and the intermediate wall (3e).

Images