HD-F736 Chair Drop Test Rig

EQUIPMENT DETAILS

HD-F736 Chair Drop Test Rig

         Drop Test Bag

         Fixture for fixing chair

        Fixture for fixing chair

Equipment Description

Test rig for chair drop durability is used to evaluate the ability of the chair to withstand heavy and abusive impact forces on the seat. It can also to evaluate the ability of chairs to withstand fatigue stresses and wear caused by downward vertical force(s) on the seat.

 

GENERL SPECIFICATIONS

 

Machine Dimensions: (W x D x H) 2750*1510*1350mm

Power supply source: single-phase, AC220V±10%, 50/60Hz (can be appointed)

Gross Weight: 820kg

 

 

STANDARD FEATURES

Adjustable Drop Height	10mm to 250mm
Largest chair dimensions width	1000mm
Test speed	10～30 times/min
Times setting	0 ~ 999,999
Control mode	PLC and LCD touch screen
Chair seating height	200-600mm ( adjustable)
Air source	6kg/cm2
Accessories	total test bag weight 136kg  ( can be divided to 102kg, 57kg)

 

APPLICATION STANDARDS:

BIFMA X5.1 2017

Reference Doc: BIFMA X5.1 2017  clause 7 Drop Test Dynamic

Test Procedures:

 

1. Functional Load Test

A test bag weighing 102 kg (225 lb.) shall be raised 152 mm (6 in.) above the

uncompressed seat and released one time.

Remove the bag.

For chairs with seat height adjustment features, set height to its lowest position and

repeat a) and b).

 

1. Proof Load Test

(Similar with Functional Load Test, but the force is 136 kg(300 lb).)

Reference Doc: BIFMA X5.1 2017 clause 10 Seating durability test-cycles ( 10.3 Impact test)

Test Procedures:

 

A test bag weighing 57 kg (125 lb.) shall be raised 36 mm (1.4 in.) above the uncompressed seat and released for 100,000 at 10-30 cycles/min.

                       For reference only

Related Video: 

http://v.youku.com/v_show/id_XMjc0Mjc2NTE5Mg==.html?spm=a2h3j.8428770.3416059.1

780

Application standards:

BS EN 1728-2012; BS EN 1335-3-2009; BS EN 581-2-2009;

Specific test articles:

BS EN 1728-2012

6.4 Seat static load and back static load test

a) Position the seat loading pad(s) at the seat loading position(s) determined by the loading point template.

b) If the item has a back, position the centres of the back loading pad(s), either at the back loading position

6.5 Seat Front Edge Static Load

7.3 Combined seat and back static load test

7.4 Seat front edge static load test

7.9 Seat and back durability

BS EN 1335-3-2009

• 7.2.2  Combined seat and back static load test 
• 7.3.1  Seat and back durability

BS EN 581-2:2009

• B.2.1.1  Seat and back static load test
• B.2.1.2  Seat and back fatigue test

HD-F743 Chair Strength & Durability Tester

EQUIPMENT DETAILS

                                Arm Test- Vertical                                                                  Arm Test- Vertical  

DESCRIPTION

The machine is designed to test office chair arm ( vertical and horizonal test ) and back strength. It with PLC controller, touch screen interface to input test parameters, test force and times can be set.

GENERAL SPECIFICATIONS

Machine Dimensions: (W x D x H) 2100*1100*1700mm

Compressed air requirement: 6-7kg/ cm2

Electrical Consumption: 0.2KW

Power supply source: single-phase, AC220V±10%, 50/60Hz (can be appointed)

Gross Weight: 380kg

STANDARD FEATURES 

APPLICATION STANDARDS:

BIFMA X5.1-2017 section 5, 6, 12, 13, 14, 15

Reference Doc:  BIFMA X5.1-2017

Section 5 Backrest Strength Test – Static- Type I Test Procedure:

A force of 667N (150lbf) or 1001 N (225 lbf) shall be applied to the backrest at the backstop position for 0ne minute. Angle 70 ± 10 degrees, If the backrest/tilt lock mechanism will not accept the load due to gradual silpping of the adjustment mechanism during the load application, set the backrest to its most rearward(stopped) position, then apply the specified load(s). Remove the load

Section 6 Backrest Strength Test – Static- Type II & III Test Procedure:

     Same with section 5, only the force should be 667N (150lbf) or 1001 N (225 lbf), Angle 90 ± 10 degrees.

Section 12 Arm strength Test- Vertical- Static Test Procedure:

  A force of 750 N (169 lbf) or 1125 N (253 lbf) shall be applied for one minute. Remove the force

Section 13 Arm strength Test- Horizontal- Static Test Procedure:

A force of 445 N (100 lbf) or 667 N (150 lbf) shall be applied for 15 second in the outward direction.

Remove the force.

Section 14 Backrest Durability Test - Cyclic - Type l Test Procedure:

 For chairs with backrest widths less than or equal to 406 mm (16 in.) at the height of the loading point, apply the load to the backrest for 120,000 cycles.

For chairs with backrest widths greater than 406 mm (16 in.) at the height of the loading point, apply the load to the backrest for 80,000 cycles.

Section 15 Backrest Durability Test - Cyclic - Type Il and lll Test Procedure:

For chairs with backrest widths less than or equal to 406 mm (16 in.) at the height of the loading point, apply the load to the backrest for 120,000 cycles.

For chairs with backrest widths greater than 406 mm (16 in.) at the height of the loading point, apply the load to the backrest for 80,000 cycles.

HD-F735 Chair Arm Durability Tester

Product Image

Product description:

The machine is designed to evaluate the ability of the chair to withstand stresses that occur as a result of repetitive loading that can be imposed on the armrest structure. Loading of this type is the result of using the armrests as a support when getting into or out of the chair.

Tester Introduction:

Test rig for chair leg strength test according to BS EN 1335-3, BS EN 12520,

Technical Parameters:

1. Test rate: 10 to 30 times / min

2. Armrest height adjustment range: 550mm ~ 950mm

3. Adjustable applied force and adjustable force holding time

4. Power: one phase, AC 220V, 50Hz

5. Dimension: w*d*h (188*103*230cm)

Test Procedure:

BS EN 1335-3-2009 clause 7.2.4 Arm rest downward static load test – front

The arm rests shall be loaded vertically by means of the local loading pads. The loading points shall be 75 mm from the front edge and centred side to side.

Apply the force to both arm rests simultaneously (see Figure 1).

 F  vertical force (Figure 1)

BS EN 1335-3-2009 clause 7.2.5 Arm rest sideways static load test

Apply an outward horizontal force to both arm rests simultaneously. Apply the forces to the edge of the arm

rest at the point along the arm rest most likely to cause failure but not less than 75 mm from the front or

rear edge (see Figure 2).

  F  horizontal force( Figure 2)

BS EN 1335-3-2009 clause 7.3.2 Arm rest durability

Apply simultaneously and cyclically the force on each arm rest at points 100 mm behind the foremost point of the arm rest length. Apply a force of (10 ± 5) N through a loading device in principle functioning as shown in Figure 3. With this force applied adjust the apparatus so that each "arm" of the test apparatus has an

angle of 10° ± 1° to the vertical. The length of the "arm" of the test apparatus shall be 600 mm ± 10 mm. The arm rests shall be allowed to deform freely.

BS EN 12520