Church chairs are mostly composed of four parts: chair seat, chair back, armrest and footing. Generally speaking, standing feet and handrails are integrated to form a firmly installed handrail frame. Composite structures are generally steel-wood structures or steel-plastic structures.
Scope of use of church chairs Church chairs are suitable for auditoriums, churches, theaters, auditoriums, lecture halls and other places. When attending meetings and watching performances, you should have a good line of sight. The seat should be easy to maintain and clean, and comfortable to use, so that people are not easy to get tired.
The design features of church chairs are mostly in the form of sofa cushions. In order to facilitate the evacuation at the end of the party, the cushions can be turned over. Seats should consider the number of seats and local lighting facilities in the dark to facilitate users to identify and find seats.
According to the needs of use and site design, files and writing boards for recording need to be placed in the seats of the auditorium, and the dedicated auditorium also needs to be combined with simultaneous translation equipment and voting and speech equipment; Some theaters or auditoriums also require seats to match the air conditioning system.
The standard applicable to public seats is Theater Public Seats (QB/T2602-2003) and related standards.
Church chairs are introduced in detail. Most of them are composed of four parts: chair seat, chair back, armrest and standing feet. Generally speaking, standing feet and handrails are integrated to form a firmly installed handrail frame. Composite structures are generally steel-wood structures or steel-plastic structures.
The chairs in the church are upright.
There are two kinds of landing with one foot (landing with one foot) and landing with the foot of the handrail station (the foot of the station is directly connected with the handrail frame).
In a chair with one foot landing, the standing foot supports the center of the chair, which is not only beautiful, but also convenient to connect with other facilities in the environment, such as vents and power interfaces. Because the connection mode of single-leg mechanism is relatively complicated, the cost of single-leg mechanism also increases accordingly.
The landing mode of the armrest tripod is firm and reliable, and it is convenient to fix and install. The armrest frame is combined with the tripod, and the structure is simple.
The footing is the foundation of the church chair support, and it is usually fixed directly on the ground with footing bolts.
Church chair armrest
The armrest of the church chair is the basic support of the whole chair, and the main parts of the chair are connected with the armrest.
Structure of handrails:
Metal frame: the skeleton of the handrail, which is basically the supporting connector of the whole church chair.
Handrails: made of other materials such as wood or plastic,
Wordpad mechanism: Wordpad mechanism can be installed on the armrests of church chairs for meeting records.
Church chair seat bag
Generally, it consists of fabric, sponge pad, inner frame, rotating mechanism and outer plate.
Fabric: linen, velveteen or cashmere are generally used; Some also use genuine leather, imitation leather as fabrics and so on.
Sponge pad: made of PU foam with a density of 40 ~ 60 kg/m3.
Inner frame: according to different designs, curved plywood and plastic board are used for simple structure, and spring metal frame and plastic inner shell are used for advanced seats.
Rotating mechanism: it is divided into gravity recovery mechanism and spring recovery mechanism. Gravity recovery mechanism is simple and reliable, maintenance-free, and often equipped with rubber silencing pad to eliminate the impact and noise during recovery; Spring reset can make the reset mechanism smaller in size and more flexible in structural design. With the damping device, the recovery movement can be controlled and slowed down, and the impact and noise can be completely eliminated. In addition, the patented European technology from France, pneumatic recovery, has been introduced into the China market. The starting device ensures that the seat cushion of the chair will not make any interference sound during opening and restoring. It is light, elegant, safe and firm, and it is a hidden device, which does not affect the appearance of the chair at all.
Outer board: it can be made of wood, plastic or other materials according to the design needs, and its main function is to decorate and connect with recycling institutions.
Church chair back bag
Generally, it consists of fabric, sponge pad, inner lining board and outer board.
Fabric: linen, velveteen or cashmere are generally used; Some also use genuine leather and imitation leather as fabrics.
Sponge pad: made of PU foam with a density of 35 ~ 50kg/m3.
Inner lining board: according to different designs, curved plywood and metal frame structure can be used. When the metal frame structure is used, it is called steel frame, and sometimes the steel frame is directly buried in the sponge.
Outer panel: it has the same function as the seat outer panel, and can also be made of wood, plastic or other materials, mainly used for decoration and connection with handrails.
The size of the seats also has a certain range. According to the ergonomic design, the size is generally controlled in:
Seat height: the distance from the highest point of the seat surface to the ground, the hard seat surface is 400 ~ 420, and the soft seat surface is 420 ~ 440mm；;
Seat width: the distance between two handrails; Generally greater than 400mm；;
Seat depth: the distance from the front edge of the seat plate to the backrest; Generally 400 ~ 450mm；;
Height of chair back: the dimension from the chair surface to the highest point of the chair back;
Total height: the distance from the highest point on the back of the chair to the ground;
Height of handrail: the distance from the highest point of handrail to the ground;
Total depth: the distance from the front point of the seat to the back of the chair generally affects the row spacing of the seat;
Depth of the tablet: the maximum depth of the seat when the tablet is opened;
Seat inclination: the included angle between the seat surface and the horizontal plane, generally 2 ~ 5;
Back inclination: the angle between the back and the horizontal plane, generally 100 ~ 106.
Row spacing: the distance between the front and back of two rows of seats;
Seat distance: also known as center distance, refers to the distance between the left and right seats;
Arc row radius: the radius of curvature of rows arranged in an arc;
In addition, there are many accessories to choose from, which have the following characteristics:
Church chair tablet
Wordpad is an accessory specially designed for chairs used in meetings or lectures, which is convenient for taking notes and placing documents and books during meetings or classes. Generally, there are two types: exposed type and concealed type.
Church chair cup holder
Cup holders are divided into armrest cup holders and external cup holders. Armrest cup holders are mainly used in cinemas and places where they are often used. Most armrest cups are erected into an integral structure with the armrest.
External cup holders are mostly used in meetings, classrooms and other places, and are only used when necessary. There are two kinds of external cup holders: front cup holder and rear cup holder.
Church chair book network
Book network is also a special accessory for conference chairs.
Church chair number plate
There are two kinds of number plates commonly used, one is called seat card, and the other is called line card. Seat cards indicate the number of seats in each row, and row cards indicate the order of rows.
Movable feet and tripods of church chairs
Where fixed installation is not allowed on the ground or the position needs to be changed frequently, it is necessary to use movable feet or seats with movable legs. Hongji products have three forms of movable feet:
A-type movable foot: placed on the ground, with height-adjustable foot nails, which can be moved manually.
B-type movable foot: placed on the ground, with height-adjustable foot nails, which can be moved manually.
Universal movable tripod:
The church chair is directly fixed on the movable feet, and the tripod is equipped with four lifting universal wheels. When the universal wheel works, the tripod can be lifted and the seat can be easily moved. When the universal wheel is lifted, the bottom plate of the tripod falls to the ground, so that the seat lies flat on the ground and cannot move.
Problems needing attention in the arrangement of church seats
The relationship between the chair and the venue
1) Chairs that cannot be fixed cannot be placed on the sloping ground.
2) Chairs that cannot be arranged in an arc cannot be arranged in an arc or in an arc field.
3) The radius is not enough to arrange the number of rows of the site.
4) The channel is generally 1200mm,
5) The audience hall area shall meet the following requirements:
A level theater should not be less than 0.80m2/ seat;
B secondary theater should not be less than 0.70m2/ seat;
C tertiary theater should not be less than 0.60m2/ seat.
6) The theater should provide fixed seats with backrest, and movable seats can be provided when the number of small box seats does not exceed 12.
7) The middle distance between the armrest and the hard chair should not be less than 0.50m; Soft chair should not be less than 0.55 meters.
8) Seat spacing shall meet the following requirements:
A. Short row method: the hard chair is not less than 0.80m, the soft chair is not less than 0.90m, the row spacing of the stepped floor is appropriately increased, and the horizontal distance from the chair back to the most prominent position in the back row is not less than 0.30 m;
B. Long line method: the hard chair shall not be less than1.00m; Soft chair should not be less than 1. 10m. The row spacing of the stepped floor should be appropriately increased, and the horizontal distance from the back of the chair to the most prominent part of the back row should not be less than 0.50 m;
C. When seats are set near the back wall, the row spacing between the last row of seats on the balcony and the pool seat should be increased by at least 0. 12m.
9) The number of seats in each row shall meet the following requirements:
A short row method: no more than 22 walkways on both sides and no more than 1 1 on one side; When the limit is exceeded, each additional seat will be added when the row spacing increases by 25mm;
B long row method: no more than 50 walkways on both sides and no more than 25 walkways on one side.
10) Wheelchair seats for the disabled should be reserved in the auditorium, with a depth of 1. 10m and a width of 0.80m The location should be convenient for the disabled to sit in and evacuate, and international signs should be set.
1 1) Slope gradient shall not be greater than 1: 6.
12) Slope seats cannot be arranged in an arc.
13) has a transverse walkway, and the back row should not exceed 10 row.
14) The vertical and horizontal walkways shall not be less than1.2m. ..